[libata] Add a bunch of PATA drivers.
The vast majority of drivers and changes are from Alan Cox. Albert Lee
contributed and maintains pata_pdc2027x. Adrian Bunk, Andrew Morton,
and Tejun Heo contributed various minor fixes and updates.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 13027d5..cbda988 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -145,6 +145,340 @@
depends on IDE=y && !BLK_DEV_IDE_SATA && (SATA_AHCI || ATA_PIIX)
default y
+config PATA_ALI
+ tristate "ALi PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the ALi ATA interfaces
+ found on the many ALi chipsets.
+
+ If unsure, say N.
+
+config PATA_AMD
+ tristate "AMD/NVidia PATA support (Experimental)"
+ depends on PCI
+ help
+ This option enables support for the AMD and NVidia PATA
+ interfaces found on the chipsets for Athlon/Athlon64.
+
+ If unsure, say N.
+
+config PATA_ARTOP
+ tristate "ARTOP 6210/6260 PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for ARTOP PATA controllers.
+
+ If unsure, say N.
+
+config PATA_ATIIXP
+ tristate "ATI PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the ATI ATA interfaces
+ found on the many ATI chipsets.
+
+ If unsure, say N.
+
+config PATA_CMD64X
+ tristate "CMD64x PATA support (Very Experimental)"
+ depends on PCI&& EXPERIMENTAL
+ help
+ This option enables support for the CMD64x series chips
+ except for the CMD640.
+
+ If unsure, say N.
+
+config PATA_CS5520
+ tristate "CS5510/5520 PATA support"
+ depends on PCI
+ help
+ This option enables support for the Cyrix 5510/5520
+ companion chip used with the MediaGX/Geode processor family.
+
+ If unsure, say N.
+
+config PATA_CS5530
+ tristate "CS5530 PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the Cyrix/NatSemi/AMD CS5530
+ companion chip used with the MediaGX/Geode processor family.
+
+ If unsure, say N.
+
+config PATA_CS5535
+ tristate "CS5535 PATA support (Experimental)"
+ depends on PCI && X86 && !X86_64 && EXPERIMENTAL
+ help
+ This option enables support for the NatSemi/AMD CS5535
+ companion chip used with the Geode processor family.
+
+ If unsure, say N.
+
+config PATA_CYPRESS
+ tristate "Cypress CY82C693 PATA support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the Cypress/Contaq CY82C693
+ chipset found in some Alpha systems
+
+ If unsure, say N.
+
+config PATA_EFAR
+ tristate "EFAR SLC90E66 support"
+ depends on PCI
+ help
+ This option enables support for the EFAR SLC90E66
+ IDE controller found on some older machines.
+
+ If unsure, say N.
+
+config ATA_GENERIC
+ tristate "Generic ATA support"
+ depends on PCI
+ help
+ This option enables support for generic BIOS configured
+ ATA controllers via the new ATA layer
+
+ If unsure, say N.
+
+config PATA_HPT366
+ tristate "HPT 366/368 PATA support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the HPT 366 and 368
+ PATA controllers via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_HPT37X
+ tristate "HPT 370/370A/371/372/374/302 PATA support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the majority of the later HPT
+ PATA controllers via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_HPT3X2N
+ tristate "HPT 372N/302N PATA support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the N variant HPT PATA
+ controllers via the new ATA layer
+
+ If unsure, say N.
+
+config PATA_HPT3X3
+ tristate "HPT 343/363 PATA support (Experimental)"
+ depends on PCI
+ help
+ This option enables support for the HPT 343/363
+ PATA controllers via the new ATA layer
+
+ If unsure, say N.
+
+config PATA_ISAPNP
+ tristate "ISA Plug and Play PATA support (Very Experimental)"
+ depends on EXPERIMENTAL && ISAPNP
+ help
+ This option enables support for ISA plug & play ATA
+ controllers such as those found on old soundcards.
+
+ If unsure, say N.
+
+config PATA_IT8172
+ tristate "IT8172 PATA support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the ITE 8172 PATA controller
+ via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_IT821X
+ tristate "IT821x PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the ITE 8211 and 8212
+ PATA controllers via the new ATA layer, including RAID
+ mode.
+
+ If unsure, say N.
+
+config PATA_LEGACY
+ tristate "Legacy ISA PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for ISA/VLB bus legacy PATA
+ ports and allows them to be accessed via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_TRIFLEX
+ tristate "Compaq Triflex PATA support"
+ depends on PCI
+ help
+ Enable support for the Compaq 'Triflex' IDE controller as found
+ on many Compaq Pentium-Pro systems, via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_MPIIX
+ tristate "Intel PATA MPIIX support"
+ depends on PCI
+ help
+ This option enables support for MPIIX PATA support.
+
+ If unsure, say N.
+
+config PATA_OLDPIIX
+ tristate "Intel PATA old PIIX support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for old(?) PIIX PATA support.
+
+ If unsure, say N.
+
+config PATA_NETCELL
+ tristate "NETCELL Revolution RAID support"
+ depends on PCI
+ help
+ This option enables support for the Netcell Revolution RAID
+ PATA controller.
+
+ If unsure, say N.
+
+config PATA_NS87410
+ tristate "Nat Semi NS87410 PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the National Semiconductor
+ NS87410 PCI-IDE controller.
+
+ If unsure, say N.
+
+config PATA_OPTI
+ tristate "OPTI621/6215 PATA support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables full PIO support for the early Opti ATA
+ controllers found on some old motherboards.
+
+ If unsure, say N.
+
+config PATA_OPTIDMA
+ tristate "OPTI FireStar PATA support (Veyr Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables DMA/PIO support for the later OPTi
+ controllers found on some old motherboards and in some
+ latops
+
+ If unsure, say N.
+
+config PATA_PCMCIA
+ tristate "PCMCIA PATA support"
+ depends on PCMCIA
+ help
+ This option enables support for PCMCIA ATA interfaces, including
+ compact flash card adapters via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_PDC_OLD
+ tristate "Older Promise PATA controller support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the Promise 20246, 20262, 20263,
+ 20265 and 20267 adapters.
+
+ If unsure, say N.
+
+config PATA_QDI
+ tristate "QDI VLB PATA support"
+ help
+ Support for QDI 6500 and 6580 PATA controllers on VESA local bus.
+
+config PATA_RADISYS
+ tristate "RADISYS 82600 PATA support (Very experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the RADISYS 82600
+ PATA controllers via the new ATA layer
+
+ If unsure, say N.
+
+config PATA_RZ1000
+ tristate "PC Tech RZ1000 PATA support"
+ depends on PCI
+ help
+ This option enables basic support for the PC Tech RZ1000/1
+ PATA controllers via the new ATA layer
+
+ If unsure, say N.
+
+config PATA_SC1200
+ tristate "SC1200 PATA support (Raving Lunatic)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the NatSemi/AMD SC1200 SoC
+ companion chip used with the Geode processor family.
+
+ If unsure, say N.
+
+config PATA_SERVERWORKS
+ tristate "SERVERWORKS OSB4/CSB5/CSB6/HT1000 PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the Serverworks OSB4/CSB5/CSB6 and
+ HT1000 PATA controllers, via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_PDC2027X
+ tristate "Promise PATA 2027x support"
+ depends on PCI
+ help
+ This option enables support for Promise PATA pdc20268 to pdc20277 host adapters.
+
+ If unsure, say N.
+
+config PATA_SIL680
+ tristate "CMD / Silicon Image 680 PATA support"
+ depends on PCI
+ help
+ This option enables support for CMD / Silicon Image 680 PATA.
+
+ If unsure, say N.
+
+config PATA_SIS
+ tristate "SiS PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for SiS PATA controllers
+
+ If unsure, say N.
+
+config PATA_VIA
+ tristate "VIA PATA support"
+ depends on PCI
+ help
+ This option enables support for the VIA PATA interfaces
+ found on the many VIA chipsets.
+
+ If unsure, say N.
+
+config PATA_WINBOND
+ tristate "Winbond SL82C105 PATA support"
+ depends on PCI
+ help
+ This option enables support for SL82C105 PATA devices found in the
+ Netwinder and some other systems
+
+ If unsure, say N.
+
endif
endmenu
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index e260e3f..b183a04 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -17,5 +17,46 @@
obj-$(CONFIG_SATA_MV) += sata_mv.o
obj-$(CONFIG_PDC_ADMA) += pdc_adma.o
+obj-$(CONFIG_PATA_ALI) += pata_ali.o
+obj-$(CONFIG_PATA_AMD) += pata_amd.o
+obj-$(CONFIG_PATA_ARTOP) += pata_artop.o
+obj-$(CONFIG_PATA_ATIIXP) += pata_atiixp.o
+obj-$(CONFIG_PATA_CMD64X) += pata_cmd64x.o
+obj-$(CONFIG_PATA_CS5520) += pata_cs5520.o
+obj-$(CONFIG_PATA_CS5530) += pata_cs5530.o
+obj-$(CONFIG_PATA_CS5535) += pata_cs5535.o
+obj-$(CONFIG_PATA_CYPRESS) += pata_cypress.o
+obj-$(CONFIG_PATA_EFAR) += pata_efar.o
+obj-$(CONFIG_PATA_HPT366) += pata_hpt366.o
+obj-$(CONFIG_PATA_HPT37X) += pata_hpt37x.o
+obj-$(CONFIG_PATA_HPT3X2N) += pata_hpt3x2n.o
+obj-$(CONFIG_PATA_HPT3X3) += pata_hpt3x3.o
+obj-$(CONFIG_PATA_ISAPNP) += pata_isapnp.o
+obj-$(CONFIG_PATA_IT8172) += pata_it8172.o
+obj-$(CONFIG_PATA_IT821X) += pata_it821x.o
+obj-$(CONFIG_PATA_NETCELL) += pata_netcell.o
+obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o
+obj-$(CONFIG_PATA_OPTI) += pata_opti.o
+obj-$(CONFIG_PATA_OPTIDMA) += pata_optidma.o
+obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o
+obj-$(CONFIG_PATA_OLDPIIX) += pata_oldpiix.o
+obj-$(CONFIG_PATA_PCMCIA) += pata_pcmcia.o
+obj-$(CONFIG_PATA_PDC2027X) += pata_pdc2027x.o
+obj-$(CONFIG_PATA_PDC_OLD) += pata_pdc202xx_old.o
+obj-$(CONFIG_PATA_QDI) += pata_qdi.o
+obj-$(CONFIG_PATA_RADISYS) += pata_radisys.o
+obj-$(CONFIG_PATA_RZ1000) += pata_rz1000.o
+obj-$(CONFIG_PATA_SC1200) += pata_sc1200.o
+obj-$(CONFIG_PATA_SERVERWORKS) += pata_serverworks.o
+obj-$(CONFIG_PATA_SIL680) += pata_sil680.o
+obj-$(CONFIG_PATA_VIA) += pata_via.o
+obj-$(CONFIG_PATA_WINBOND) += pata_sl82c105.o
+obj-$(CONFIG_PATA_SIS) += pata_sis.o
+obj-$(CONFIG_PATA_TRIFLEX) += pata_triflex.o
+# Should be last but one libata driver
+obj-$(CONFIG_ATA_GENERIC) += ata_generic.o
+# Should be last libata driver
+obj-$(CONFIG_PATA_LEGACY) += pata_legacy.o
+
libata-objs := libata-core.o libata-scsi.o libata-sff.o libata-eh.o
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
new file mode 100644
index 0000000..20b191d
--- /dev/null
+++ b/drivers/ata/ata_generic.c
@@ -0,0 +1,252 @@
+/*
+ * ata_generic.c - Generic PATA/SATA controller driver.
+ * Copyright 2005 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ *
+ * Elements from ide/pci/generic.c
+ * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
+ * Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * Driver for PCI IDE interfaces implementing the standard bus mastering
+ * interface functionality. This assumes the BIOS did the drive set up and
+ * tuning for us. By default we do not grab all IDE class devices as they
+ * may have other drivers or need fixups to avoid problems. Instead we keep
+ * a default list of stuff without documentation/driver that appears to
+ * work.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "ata_generic"
+#define DRV_VERSION "0.2.6"
+
+/*
+ * A generic parallel ATA driver using libata
+ */
+
+/**
+ * generic_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int generic_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+
+/**
+ * generic_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ * @classes:
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+
+static void generic_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, generic_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * generic_set_mode - mode setting
+ * @ap: interface to set up
+ *
+ * Use a non standard set_mode function. We don't want to be tuned.
+ * The BIOS configured everything. Our job is not to fiddle. We
+ * read the dma enabled bits from the PCI configuration of the device
+ * and respect them.
+ */
+
+static void generic_set_mode(struct ata_port *ap)
+{
+ int dma_enabled = 0;
+ int i;
+
+ /* Bits 5 and 6 indicate if DMA is active on master/slave */
+ if (ap->ioaddr.bmdma_addr)
+ dma_enabled = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ struct ata_device *dev = &ap->device[i];
+ if (ata_dev_enabled(dev)) {
+ /* We don't really care */
+ dev->pio_mode = XFER_PIO_0;
+ dev->dma_mode = XFER_MW_DMA_0;
+ /* We do need the right mode information for DMA or PIO
+ and this comes from the current configuration flags */
+ if (dma_enabled & (1 << (5 + i))) {
+ dev->xfer_mode = XFER_MW_DMA_0;
+ dev->xfer_shift = ATA_SHIFT_MWDMA;
+ dev->flags &= ~ATA_DFLAG_PIO;
+ } else {
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
+ }
+ }
+ }
+}
+
+static struct scsi_host_template generic_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations generic_port_ops = {
+ .set_mode = generic_set_mode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .data_xfer = ata_pio_data_xfer,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = generic_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int all_generic_ide; /* Set to claim all devices */
+
+/**
+ * ata_generic_init - attach generic IDE
+ * @dev: PCI device found
+ * @id: match entry
+ *
+ * Called each time a matching IDE interface is found. We check if the
+ * interface is one we wish to claim and if so we perform any chip
+ * specific hacks then let the ATA layer do the heavy lifting.
+ */
+
+static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ u16 command;
+ static struct ata_port_info info = {
+ .sht = &generic_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &generic_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ /* Don't use the generic entry unless instructed to do so */
+ if (id->driver_data == 1 && all_generic_ide == 0)
+ return -ENODEV;
+
+ /* Devices that need care */
+ if (dev->vendor == PCI_VENDOR_ID_UMC &&
+ dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
+ (!(PCI_FUNC(dev->devfn) & 1)))
+ return -ENODEV;
+
+ if (dev->vendor == PCI_VENDOR_ID_OPTI &&
+ dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
+ (!(PCI_FUNC(dev->devfn) & 1)))
+ return -ENODEV;
+
+ /* Don't re-enable devices in generic mode or we will break some
+ motherboards with disabled and unused IDE controllers */
+ pci_read_config_word(dev, PCI_COMMAND, &command);
+ if (!(command & PCI_COMMAND_IO))
+ return -ENODEV;
+
+ if (dev->vendor == PCI_VENDOR_ID_AL)
+ ata_pci_clear_simplex(dev);
+
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id ata_generic[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), },
+ { PCI_DEVICE(PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), },
+ { PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F), },
+ { PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886A), },
+ { PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF), },
+ { PCI_DEVICE(PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561), },
+ { PCI_DEVICE(PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), },
+ /* Must come last. If you add entries adjust this table appropriately */
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 1},
+ { 0, },
+};
+
+static struct pci_driver ata_generic_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = ata_generic,
+ .probe = ata_generic_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init ata_generic_init(void)
+{
+ return pci_module_init(&ata_generic_pci_driver);
+}
+
+
+static void __exit ata_generic_exit(void)
+{
+ pci_unregister_driver(&ata_generic_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for generic ATA");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, ata_generic);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(ata_generic_init);
+module_exit(ata_generic_exit);
+
+module_param(all_generic_ide, int, 0);
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 22b2dba..12b3a42 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -93,7 +93,7 @@
#include <linux/libata.h>
#define DRV_NAME "ata_piix"
-#define DRV_VERSION "2.00"
+#define DRV_VERSION "2.00ac6"
enum {
PIIX_IOCFG = 0x54, /* IDE I/O configuration register */
@@ -116,15 +116,18 @@
PIIX_80C_SEC = (1 << 7) | (1 << 6),
/* controller IDs */
- piix4_pata = 0,
- ich5_pata = 1,
- ich5_sata = 2,
- esb_sata = 3,
- ich6_sata = 4,
- ich6_sata_ahci = 5,
- ich6m_sata_ahci = 6,
- ich8_sata_ahci = 7,
-
+ piix_pata_33 = 0, /* PIIX3 or 4 at 33Mhz */
+ ich_pata_33 = 1, /* ICH up to UDMA 33 only */
+ ich_pata_66 = 2, /* ICH up to 66 Mhz */
+ ich_pata_100 = 3, /* ICH up to UDMA 100 */
+ ich_pata_133 = 4, /* ICH up to UDMA 133 */
+ ich5_sata = 5,
+ esb_sata = 6,
+ ich6_sata = 7,
+ ich6_sata_ahci = 8,
+ ich6m_sata_ahci = 9,
+ ich8_sata_ahci = 10,
+
/* constants for mapping table */
P0 = 0, /* port 0 */
P1 = 1, /* port 1 */
@@ -152,19 +155,54 @@
static int piix_init_one (struct pci_dev *pdev,
const struct pci_device_id *ent);
static void piix_host_stop(struct ata_host *host);
+static void piix_pata_error_handler(struct ata_port *ap);
+static void ich_pata_error_handler(struct ata_port *ap);
+static void piix_sata_error_handler(struct ata_port *ap);
static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev);
static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev);
-static void piix_pata_error_handler(struct ata_port *ap);
-static void piix_sata_error_handler(struct ata_port *ap);
+static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev);
static unsigned int in_module_init = 1;
static const struct pci_device_id piix_pci_tbl[] = {
#ifdef ATA_ENABLE_PATA
- { 0x8086, 0x7111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix4_pata },
- { 0x8086, 0x24db, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
- { 0x8086, 0x25a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
- { 0x8086, 0x27df, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
+ /* Intel PIIX4 for the 430TX/440BX/MX chipset: UDMA 33 */
+ /* Also PIIX4E (fn3 rev 2) and PIIX4M (fn3 rev 3) */
+ { 0x8086, 0x7111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ { 0x8086, 0x24db, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ { 0x8086, 0x25a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel PIIX4 */
+ { 0x8086, 0x7199, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ /* Intel PIIX4 */
+ { 0x8086, 0x7601, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ /* Intel PIIX */
+ { 0x8086, 0x84CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ /* Intel ICH (i810, i815, i840) UDMA 66*/
+ { 0x8086, 0x2411, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_66 },
+ /* Intel ICH0 : UDMA 33*/
+ { 0x8086, 0x2421, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_33 },
+ /* Intel ICH2M */
+ { 0x8086, 0x244A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH2 (i810E2, i845, 850, 860) UDMA 100 */
+ { 0x8086, 0x244B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH3M */
+ { 0x8086, 0x248A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH3 (E7500/1) UDMA 100 */
+ { 0x8086, 0x248B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH4 (i845GV, i845E, i852, i855) UDMA 100 */
+ { 0x8086, 0x24CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ { 0x8086, 0x24CB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH5 */
+ { 0x8086, 0x24DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
+ /* C-ICH (i810E2) */
+ { 0x8086, 0x245B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* ESB (855GME/875P + 6300ESB) UDMA 100 */
+ { 0x8086, 0x25A2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* ICH6 (and 6) (i915) UDMA 100 */
+ { 0x8086, 0x266F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* ICH7/7-R (i945, i975) UDMA 100*/
+ { 0x8086, 0x27DF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
+ { 0x8086, 0x269E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
#endif
/* NOTE: The following PCI ids must be kept in sync with the
@@ -263,6 +301,39 @@
.host_stop = piix_host_stop,
};
+static const struct ata_port_operations ich_pata_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = piix_set_piomode,
+ .set_dmamode = ich_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ich_pata_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
static const struct ata_port_operations piix_sata_ops = {
.port_disable = ata_port_disable,
@@ -359,35 +430,56 @@
};
static struct ata_port_info piix_port_info[] = {
- /* piix4_pata */
+ /* piix_pata_33: 0: PIIX3 or 4 at 33MHz */
{
.sht = &piix_sht,
- .flags = ATA_FLAG_SLAVE_POSS,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
.pio_mask = 0x1f, /* pio0-4 */
-#if 0
- .mwdma_mask = 0x06, /* mwdma1-2 */
-#else
- .mwdma_mask = 0x00, /* mwdma broken */
-#endif
+ .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
.udma_mask = ATA_UDMA_MASK_40C,
.port_ops = &piix_pata_ops,
},
- /* ich5_pata */
+ /* ich_pata_33: 1 ICH0 - ICH at 33Mhz*/
{
.sht = &piix_sht,
- .flags = ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS,
+ .pio_mask = 0x1f, /* pio 0-4 */
+ .mwdma_mask = 0x06, /* Check: maybe 0x07 */
+ .udma_mask = ATA_UDMA2, /* UDMA33 */
+ .port_ops = &ich_pata_ops,
+ },
+ /* ich_pata_66: 2 ICH controllers up to 66MHz */
+ {
+ .sht = &piix_sht,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS,
+ .pio_mask = 0x1f, /* pio 0-4 */
+ .mwdma_mask = 0x06, /* MWDMA0 is broken on chip */
+ .udma_mask = ATA_UDMA4,
+ .port_ops = &ich_pata_ops,
+ },
+
+ /* ich_pata_100: 3 */
+ {
+ .sht = &piix_sht,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
.pio_mask = 0x1f, /* pio0-4 */
-#if 0
.mwdma_mask = 0x06, /* mwdma1-2 */
-#else
- .mwdma_mask = 0x00, /* mwdma broken */
-#endif
- .udma_mask = 0x3f, /* udma0-5 */
- .port_ops = &piix_pata_ops,
+ .udma_mask = ATA_UDMA5, /* udma0-5 */
+ .port_ops = &ich_pata_ops,
},
- /* ich5_sata */
+ /* ich_pata_133: 4 ICH with full UDMA6 */
+ {
+ .sht = &piix_sht,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
+ .pio_mask = 0x1f, /* pio 0-4 */
+ .mwdma_mask = 0x06, /* Check: maybe 0x07 */
+ .udma_mask = ATA_UDMA6, /* UDMA133 */
+ .port_ops = &ich_pata_ops,
+ },
+
+ /* ich5_sata: 5 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR |
@@ -398,7 +490,7 @@
.port_ops = &piix_sata_ops,
},
- /* i6300esb_sata */
+ /* i6300esb_sata: 6 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -409,7 +501,7 @@
.port_ops = &piix_sata_ops,
},
- /* ich6_sata */
+ /* ich6_sata: 7 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -420,7 +512,7 @@
.port_ops = &piix_sata_ops,
},
- /* ich6_sata_ahci */
+ /* ich6_sata_ahci:8 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -432,7 +524,7 @@
.port_ops = &piix_sata_ops,
},
- /* ich6m_sata_ahci */
+ /* ich6m_sata_ahci: 9 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -455,6 +547,7 @@
.udma_mask = 0x7f, /* udma0-6 */
.port_ops = &piix_sata_ops,
},
+
};
static struct pci_bits piix_enable_bits[] = {
@@ -483,7 +576,8 @@
* LOCKING:
* None (inherited from caller).
*/
-static void piix_pata_cbl_detect(struct ata_port *ap)
+
+static void ich_pata_cbl_detect(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 tmp, mask;
@@ -503,14 +597,12 @@
cbl40:
ap->cbl = ATA_CBL_PATA40;
- ap->udma_mask &= ATA_UDMA_MASK_40C;
}
/**
* piix_pata_prereset - prereset for PATA host controller
* @ap: Target port
*
- * Prereset including cable detection.
*
* LOCKING:
* None (inherited from caller).
@@ -524,9 +616,7 @@
ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
return 0;
}
-
- piix_pata_cbl_detect(ap);
-
+ ap->cbl = ATA_CBL_PATA40;
return ata_std_prereset(ap);
}
@@ -536,6 +626,36 @@
ata_std_postreset);
}
+
+/**
+ * ich_pata_prereset - prereset for PATA host controller
+ * @ap: Target port
+ *
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+static int ich_pata_prereset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) {
+ ata_port_printk(ap, KERN_INFO, "port disabled. ignoring.\n");
+ ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
+ return 0;
+ }
+
+ ich_pata_cbl_detect(ap);
+
+ return ata_std_prereset(ap);
+}
+
+static void ich_pata_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, ich_pata_prereset, ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
/**
* piix_sata_present_mask - determine present mask for SATA host controller
* @ap: Target port
@@ -637,6 +757,13 @@
unsigned int slave_port = 0x44;
u16 master_data;
u8 slave_data;
+ u8 udma_enable;
+ int control = 0;
+
+ /*
+ * See Intel Document 298600-004 for the timing programing rules
+ * for ICH controllers.
+ */
static const /* ISP RTC */
u8 timings[][2] = { { 0, 0 },
@@ -645,20 +772,30 @@
{ 2, 1 },
{ 2, 3 }, };
+ if (pio >= 2)
+ control |= 1; /* TIME1 enable */
+ if (ata_pio_need_iordy(adev))
+ control |= 2; /* IE enable */
+
+ /* Intel specifies that the PPE functionality is for disk only */
+ if (adev->class == ATA_DEV_ATA)
+ control |= 4; /* PPE enable */
+
pci_read_config_word(dev, master_port, &master_data);
if (is_slave) {
+ /* Enable SITRE (seperate slave timing register) */
master_data |= 0x4000;
- /* enable PPE, IE and TIME */
- master_data |= 0x0070;
+ /* enable PPE1, IE1 and TIME1 as needed */
+ master_data |= (control << 4);
pci_read_config_byte(dev, slave_port, &slave_data);
slave_data &= (ap->port_no ? 0x0f : 0xf0);
- slave_data |=
- (timings[pio][0] << 2) |
- (timings[pio][1] << (ap->port_no ? 4 : 0));
+ /* Load the timing nibble for this slave */
+ slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
} else {
+ /* Master keeps the bits in a different format */
master_data &= 0xccf8;
- /* enable PPE, IE and TIME */
- master_data |= 0x0007;
+ /* Enable PPE, IE and TIME as appropriate */
+ master_data |= control;
master_data |=
(timings[pio][0] << 12) |
(timings[pio][1] << 8);
@@ -666,13 +803,23 @@
pci_write_config_word(dev, master_port, master_data);
if (is_slave)
pci_write_config_byte(dev, slave_port, slave_data);
+
+ /* Ensure the UDMA bit is off - it will be turned back on if
+ UDMA is selected */
+
+ if (ap->udma_mask) {
+ pci_read_config_byte(dev, 0x48, &udma_enable);
+ udma_enable &= ~(1 << (2 * ap->port_no + adev->devno));
+ pci_write_config_byte(dev, 0x48, udma_enable);
+ }
}
/**
- * piix_set_dmamode - Initialize host controller PATA PIO timings
+ * do_pata_set_dmamode - Initialize host controller PATA PIO timings
* @ap: Port whose timings we are configuring
- * @adev: um
+ * @adev: Drive in question
* @udma: udma mode, 0 - 6
+ * @is_ich: set if the chip is an ICH device
*
* Set UDMA mode for device, in host controller PCI config space.
*
@@ -680,70 +827,140 @@
* None (inherited from caller).
*/
-static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+static void do_pata_set_dmamode (struct ata_port *ap, struct ata_device *adev, int isich)
{
- unsigned int udma = adev->dma_mode; /* FIXME: MWDMA too */
struct pci_dev *dev = to_pci_dev(ap->host->dev);
- u8 maslave = ap->port_no ? 0x42 : 0x40;
- u8 speed = udma;
- unsigned int drive_dn = (ap->port_no ? 2 : 0) + adev->devno;
- int a_speed = 3 << (drive_dn * 4);
- int u_flag = 1 << drive_dn;
- int v_flag = 0x01 << drive_dn;
- int w_flag = 0x10 << drive_dn;
- int u_speed = 0;
- int sitre;
- u16 reg4042, reg4a;
- u8 reg48, reg54, reg55;
+ u8 master_port = ap->port_no ? 0x42 : 0x40;
+ u16 master_data;
+ u8 speed = adev->dma_mode;
+ int devid = adev->devno + 2 * ap->port_no;
+ u8 udma_enable;
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
- pci_read_config_word(dev, maslave, ®4042);
- DPRINTK("reg4042 = 0x%04x\n", reg4042);
- sitre = (reg4042 & 0x4000) ? 1 : 0;
- pci_read_config_byte(dev, 0x48, ®48);
- pci_read_config_word(dev, 0x4a, ®4a);
- pci_read_config_byte(dev, 0x54, ®54);
- pci_read_config_byte(dev, 0x55, ®55);
-
- switch(speed) {
- case XFER_UDMA_4:
- case XFER_UDMA_2: u_speed = 2 << (drive_dn * 4); break;
- case XFER_UDMA_6:
- case XFER_UDMA_5:
- case XFER_UDMA_3:
- case XFER_UDMA_1: u_speed = 1 << (drive_dn * 4); break;
- case XFER_UDMA_0: u_speed = 0 << (drive_dn * 4); break;
- case XFER_MW_DMA_2:
- case XFER_MW_DMA_1: break;
- default:
- BUG();
- return;
- }
+ pci_read_config_word(dev, master_port, &master_data);
+ pci_read_config_byte(dev, 0x48, &udma_enable);
if (speed >= XFER_UDMA_0) {
- if (!(reg48 & u_flag))
- pci_write_config_byte(dev, 0x48, reg48 | u_flag);
- if (speed == XFER_UDMA_5) {
- pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag);
- } else {
- pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
+ unsigned int udma = adev->dma_mode - XFER_UDMA_0;
+ u16 udma_timing;
+ u16 ideconf;
+ int u_clock, u_speed;
+
+ /*
+ * UDMA is handled by a combination of clock switching and
+ * selection of dividers
+ *
+ * Handy rule: Odd modes are UDMATIMx 01, even are 02
+ * except UDMA0 which is 00
+ */
+ u_speed = min(2 - (udma & 1), udma);
+ if (udma == 5)
+ u_clock = 0x1000; /* 100Mhz */
+ else if (udma > 2)
+ u_clock = 1; /* 66Mhz */
+ else
+ u_clock = 0; /* 33Mhz */
+
+ udma_enable |= (1 << devid);
+
+ /* Load the CT/RP selection */
+ pci_read_config_word(dev, 0x4A, &udma_timing);
+ udma_timing &= ~(3 << (4 * devid));
+ udma_timing |= u_speed << (4 * devid);
+ pci_write_config_word(dev, 0x4A, udma_timing);
+
+ if (isich) {
+ /* Select a 33/66/100Mhz clock */
+ pci_read_config_word(dev, 0x54, &ideconf);
+ ideconf &= ~(0x1001 << devid);
+ ideconf |= u_clock << devid;
+ /* For ICH or later we should set bit 10 for better
+ performance (WR_PingPong_En) */
+ pci_write_config_word(dev, 0x54, ideconf);
}
- if ((reg4a & a_speed) != u_speed)
- pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed);
- if (speed > XFER_UDMA_2) {
- if (!(reg54 & v_flag))
- pci_write_config_byte(dev, 0x54, reg54 | v_flag);
- } else
- pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
} else {
- if (reg48 & u_flag)
- pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
- if (reg4a & a_speed)
- pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
- if (reg54 & v_flag)
- pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
- if (reg55 & w_flag)
- pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
+ /*
+ * MWDMA is driven by the PIO timings. We must also enable
+ * IORDY unconditionally along with TIME1. PPE has already
+ * been set when the PIO timing was set.
+ */
+ unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
+ unsigned int control;
+ u8 slave_data;
+ const unsigned int needed_pio[3] = {
+ XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
+ };
+ int pio = needed_pio[mwdma] - XFER_PIO_0;
+
+ control = 3; /* IORDY|TIME1 */
+
+ /* If the drive MWDMA is faster than it can do PIO then
+ we must force PIO into PIO0 */
+
+ if (adev->pio_mode < needed_pio[mwdma])
+ /* Enable DMA timing only */
+ control |= 8; /* PIO cycles in PIO0 */
+
+ if (adev->devno) { /* Slave */
+ master_data &= 0xFF4F; /* Mask out IORDY|TIME1|DMAONLY */
+ master_data |= control << 4;
+ pci_read_config_byte(dev, 0x44, &slave_data);
+ slave_data &= (0x0F + 0xE1 * ap->port_no);
+ /* Load the matching timing */
+ slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
+ pci_write_config_byte(dev, 0x44, slave_data);
+ } else { /* Master */
+ master_data &= 0xCCF4; /* Mask out IORDY|TIME1|DMAONLY
+ and master timing bits */
+ master_data |= control;
+ master_data |=
+ (timings[pio][0] << 12) |
+ (timings[pio][1] << 8);
+ }
+ udma_enable &= ~(1 << devid);
+ pci_write_config_word(dev, master_port, master_data);
}
+ /* Don't scribble on 0x48 if the controller does not support UDMA */
+ if (ap->udma_mask)
+ pci_write_config_byte(dev, 0x48, udma_enable);
+}
+
+/**
+ * piix_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set MW/UDMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ do_pata_set_dmamode(ap, adev, 0);
+}
+
+/**
+ * ich_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set MW/UDMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ do_pata_set_dmamode(ap, adev, 1);
}
#define AHCI_PCI_BAR 5
@@ -872,7 +1089,7 @@
case IDE:
WARN_ON((i & 1) || map[i + 1] != IDE);
- pinfo[i / 2] = piix_port_info[ich5_pata];
+ pinfo[i / 2] = piix_port_info[ich_pata_100];
pinfo[i / 2].private_data = hpriv;
i++;
printk(" IDE IDE");
@@ -1007,4 +1224,3 @@
module_init(piix_init);
module_exit(piix_exit);
-
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
new file mode 100644
index 0000000..0e0415e
--- /dev/null
+++ b/drivers/ata/pata_ali.c
@@ -0,0 +1,679 @@
+/*
+ * pata_ali.c - ALI 15x3 PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * based in part upon
+ * linux/drivers/ide/pci/alim15x3.c Version 0.17 2003/01/02
+ *
+ * Copyright (C) 1998-2000 Michel Aubry, Maintainer
+ * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
+ * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
+ *
+ * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
+ * May be copied or modified under the terms of the GNU General Public License
+ * Copyright (C) 2002 Alan Cox <alan@redhat.com>
+ * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw>
+ *
+ * Documentation
+ * Chipset documentation available under NDA only
+ *
+ * TODO/CHECK
+ * Cannot have ATAPI on both master & slave for rev < c2 (???) but
+ * otherwise should do atapi DMA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/dmi.h>
+
+#define DRV_NAME "pata_ali"
+#define DRV_VERSION "0.6.5"
+
+/*
+ * Cable special cases
+ */
+
+static struct dmi_system_id cable_dmi_table[] = {
+ {
+ .ident = "HP Pavilion N5430",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_BOARD_NAME, "OmniBook N32N-736"),
+ },
+ },
+ { }
+};
+
+static int ali_cable_override(struct pci_dev *pdev)
+{
+ /* Fujitsu P2000 */
+ if (pdev->subsystem_vendor == 0x10CF && pdev->subsystem_device == 0x10AF)
+ return 1;
+ /* Systems by DMI */
+ if (dmi_check_system(cable_dmi_table))
+ return 1;
+ return 0;
+}
+
+/**
+ * ali_c2_cable_detect - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection for C2 and later revisions
+ */
+
+static int ali_c2_cable_detect(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ata66;
+
+ /* Certain laptops use short but suitable cables and don't
+ implement the detect logic */
+
+ if (ali_cable_override(pdev))
+ return ATA_CBL_PATA80;
+
+ /* Host view cable detect 0x4A bit 0 primary bit 1 secondary
+ Bit set for 40 pin */
+ pci_read_config_byte(pdev, 0x4A, &ata66);
+ if (ata66 & (1 << ap->port_no))
+ return ATA_CBL_PATA40;
+ else
+ return ATA_CBL_PATA80;
+}
+
+/**
+ * ali_early_error_handler - reset for eary chip
+ * @ap: ATA port
+ *
+ * Handle the reset callback for the later chips with cable detect
+ */
+
+static int ali_c2_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ali_c2_cable_detect(ap);
+ return ata_std_prereset(ap);
+}
+
+static void ali_c2_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, ali_c2_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+/**
+ * ali_early_cable_detect - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection for older chipsets. This turns out to be
+ * rather easy to implement
+ */
+
+static int ali_early_cable_detect(struct ata_port *ap)
+{
+ return ATA_CBL_PATA40;
+}
+
+/**
+ * ali_early_probe_init - reset for early chip
+ * @ap: ATA port
+ *
+ * Handle the reset callback for the early (pre cable detect) chips.
+ */
+
+static int ali_early_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ali_early_cable_detect(ap);
+ return ata_std_prereset(ap);
+}
+
+static void ali_early_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, ali_early_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+/**
+ * ali_20_filter - filter for earlier ALI DMA
+ * @ap: ALi ATA port
+ * @adev: attached device
+ *
+ * Ensure that we do not do DMA on CD devices. We may be able to
+ * fix that later on. Also ensure we do not do UDMA on WDC drives
+ */
+
+static unsigned long ali_20_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
+{
+ char model_num[40];
+ /* No DMA on anything but a disk for now */
+ if (adev->class != ATA_DEV_ATA)
+ mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
+ ata_id_string(adev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num));
+ if (strstr(model_num, "WDC"))
+ return mask &= ~ATA_MASK_UDMA;
+ return ata_pci_default_filter(ap, adev, mask);
+}
+
+/**
+ * ali_fifo_control - FIFO manager
+ * @ap: ALi channel to control
+ * @adev: device for FIFO control
+ * @on: 0 for off 1 for on
+ *
+ * Enable or disable the FIFO on a given device. Because of the way the
+ * ALi FIFO works it provides a boost on ATA disk but can be confused by
+ * ATAPI and we must therefore manage it.
+ */
+
+static void ali_fifo_control(struct ata_port *ap, struct ata_device *adev, int on)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int pio_fifo = 0x54 + ap->port_no;
+ u8 fifo;
+ int shift = 4 * adev->devno;
+
+ /* ATA - FIFO on set nibble to 0x05, ATAPI - FIFO off, set nibble to
+ 0x00. Not all the docs agree but the behaviour we now use is the
+ one stated in the BIOS Programming Guide */
+
+ pci_read_config_byte(pdev, pio_fifo, &fifo);
+ fifo &= ~(0x0F << shift);
+ if (on)
+ fifo |= (on << shift);
+ pci_write_config_byte(pdev, pio_fifo, fifo);
+}
+
+/**
+ * ali_program_modes - load mode registers
+ * @ap: ALi channel to load
+ * @adev: Device the timing is for
+ * @cmd: Command timing
+ * @data: Data timing
+ * @ultra: UDMA timing or zero for off
+ *
+ * Loads the timing registers for cmd/data and disable UDMA if
+ * ultra is zero. If ultra is set then load and enable the UDMA
+ * timing but do not touch the command/data timing.
+ */
+
+static void ali_program_modes(struct ata_port *ap, struct ata_device *adev, struct ata_timing *t, u8 ultra)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int cas = 0x58 + 4 * ap->port_no; /* Command timing */
+ int cbt = 0x59 + 4 * ap->port_no; /* Command timing */
+ int drwt = 0x5A + 4 * ap->port_no + adev->devno; /* R/W timing */
+ int udmat = 0x56 + ap->port_no; /* UDMA timing */
+ int shift = 4 * adev->devno;
+ u8 udma;
+
+ if (t != NULL) {
+ t->setup = FIT(t->setup, 1, 8) & 7;
+ t->act8b = FIT(t->act8b, 1, 8) & 7;
+ t->rec8b = FIT(t->rec8b, 1, 16) & 15;
+ t->active = FIT(t->active, 1, 8) & 7;
+ t->recover = FIT(t->recover, 1, 16) & 15;
+
+ pci_write_config_byte(pdev, cas, t->setup);
+ pci_write_config_byte(pdev, cbt, (t->act8b << 4) | t->rec8b);
+ pci_write_config_byte(pdev, drwt, (t->active << 4) | t->recover);
+ }
+
+ /* Set up the UDMA enable */
+ pci_read_config_byte(pdev, udmat, &udma);
+ udma &= ~(0x0F << shift);
+ udma |= ultra << shift;
+ pci_write_config_byte(pdev, udmat, udma);
+}
+
+/**
+ * ali_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the ALi registers for PIO mode. FIXME: add timings for
+ * PIO5.
+ */
+
+static void ali_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct ata_device *pair = ata_dev_pair(adev);
+ struct ata_timing t;
+ unsigned long T = 1000000000 / 33333; /* PCI clock based */
+
+ ata_timing_compute(adev, adev->pio_mode, &t, T, 1);
+ if (pair) {
+ struct ata_timing p;
+ ata_timing_compute(pair, pair->pio_mode, &p, T, 1);
+ ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
+ if (pair->dma_mode) {
+ ata_timing_compute(pair, pair->dma_mode, &p, T, 1);
+ ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
+ }
+ }
+
+ /* PIO FIFO is only permitted on ATA disk */
+ if (adev->class != ATA_DEV_ATA)
+ ali_fifo_control(ap, adev, 0x00);
+ ali_program_modes(ap, adev, &t, 0);
+ if (adev->class == ATA_DEV_ATA)
+ ali_fifo_control(ap, adev, 0x05);
+
+}
+
+/**
+ * ali_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * FIXME: MWDMA timings
+ */
+
+static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };
+ struct ata_device *pair = ata_dev_pair(adev);
+ struct ata_timing t;
+ unsigned long T = 1000000000 / 33333; /* PCI clock based */
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+
+ if (adev->class == ATA_DEV_ATA)
+ ali_fifo_control(ap, adev, 0x08);
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ ali_program_modes(ap, adev, NULL, udma_timing[adev->dma_mode - XFER_UDMA_0]);
+ if (adev->dma_mode >= XFER_UDMA_3) {
+ u8 reg4b;
+ pci_read_config_byte(pdev, 0x4B, ®4b);
+ reg4b |= 1;
+ pci_write_config_byte(pdev, 0x4B, reg4b);
+ }
+ } else {
+ ata_timing_compute(adev, adev->dma_mode, &t, T, 1);
+ if (pair) {
+ struct ata_timing p;
+ ata_timing_compute(pair, pair->pio_mode, &p, T, 1);
+ ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
+ if (pair->dma_mode) {
+ ata_timing_compute(pair, pair->dma_mode, &p, T, 1);
+ ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
+ }
+ }
+ ali_program_modes(ap, adev, &t, 0);
+ }
+}
+
+/**
+ * ali_lock_sectors - Keep older devices to 255 sector mode
+ * @ap: ATA port
+ * @adev: Device
+ *
+ * Called during the bus probe for each device that is found. We use
+ * this call to lock the sector count of the device to 255 or less on
+ * older ALi controllers. If we didn't do this then large I/O's would
+ * require LBA48 commands which the older ALi requires are issued by
+ * slower PIO methods
+ */
+
+static void ali_lock_sectors(struct ata_port *ap, struct ata_device *adev)
+{
+ adev->max_sectors = 255;
+}
+
+static struct scsi_host_template ali_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ /* Keep LBA28 counts so large I/O's don't turn LBA48 and PIO
+ with older controllers. Not locked so will grow on C5 or later */
+ .max_sectors = 255,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+/*
+ * Port operations for PIO only ALi
+ */
+
+static struct ata_port_operations ali_early_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = ali_set_piomode,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ali_early_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Port operations for DMA capable ALi without cable
+ * detect
+ */
+static struct ata_port_operations ali_20_port_ops = {
+ .port_disable = ata_port_disable,
+
+ .set_piomode = ali_set_piomode,
+ .set_dmamode = ali_set_dmamode,
+ .mode_filter = ali_20_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+ .dev_config = ali_lock_sectors,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ali_early_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Port operations for DMA capable ALi with cable detect
+ */
+static struct ata_port_operations ali_c2_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = ali_set_piomode,
+ .set_dmamode = ali_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+ .dev_config = ali_lock_sectors,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ali_c2_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Port operations for DMA capable ALi with cable detect and LBA48
+ */
+static struct ata_port_operations ali_c5_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = ali_set_piomode,
+ .set_dmamode = ali_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ali_c2_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * ali_init_one - discovery callback
+ * @pdev: PCI device ID
+ * @id: PCI table info
+ *
+ * An ALi IDE interface has been discovered. Figure out what revision
+ * and perform configuration work before handing it to the ATA layer
+ */
+
+static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info_early = {
+ .sht = &ali_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .port_ops = &ali_early_port_ops
+ };
+ /* Revision 0x20 added DMA */
+ static struct ata_port_info info_20 = {
+ .sht = &ali_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &ali_20_port_ops
+ };
+ /* Revision 0x20 with support logic added UDMA */
+ static struct ata_port_info info_20_udma = {
+ .sht = &ali_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x07, /* UDMA33 */
+ .port_ops = &ali_20_port_ops
+ };
+ /* Revision 0xC2 adds UDMA66 */
+ static struct ata_port_info info_c2 = {
+ .sht = &ali_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f,
+ .port_ops = &ali_c2_port_ops
+ };
+ /* Revision 0xC3 is UDMA100 */
+ static struct ata_port_info info_c3 = {
+ .sht = &ali_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &ali_c2_port_ops
+ };
+ /* Revision 0xC4 is UDMA133 */
+ static struct ata_port_info info_c4 = {
+ .sht = &ali_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f,
+ .port_ops = &ali_c2_port_ops
+ };
+ /* Revision 0xC5 is UDMA133 with LBA48 DMA */
+ static struct ata_port_info info_c5 = {
+ .sht = &ali_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f,
+ .port_ops = &ali_c5_port_ops
+ };
+
+ static struct ata_port_info *port_info[2];
+ u8 rev, tmp;
+ struct pci_dev *north, *isa_bridge;
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
+
+ /*
+ * The chipset revision selects the driver operations and
+ * mode data.
+ */
+
+ if (rev < 0x20) {
+ port_info[0] = port_info[1] = &info_early;
+ } else if (rev < 0xC2) {
+ /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */
+ pci_read_config_byte(pdev, 0x4B, &tmp);
+ /* Clear CD-ROM DMA write bit */
+ tmp &= 0x7F;
+ pci_write_config_byte(pdev, 0x4B, tmp);
+ port_info[0] = port_info[1] = &info_20;
+ } else if (rev == 0xC2) {
+ port_info[0] = port_info[1] = &info_c2;
+ } else if (rev == 0xC3) {
+ port_info[0] = port_info[1] = &info_c3;
+ } else if (rev == 0xC4) {
+ port_info[0] = port_info[1] = &info_c4;
+ } else
+ port_info[0] = port_info[1] = &info_c5;
+
+ if (rev >= 0xC2) {
+ /* Enable cable detection logic */
+ pci_read_config_byte(pdev, 0x4B, &tmp);
+ pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
+ }
+
+ north = pci_get_slot(pdev->bus, PCI_DEVFN(0,0));
+ isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
+
+ if (north && north->vendor == PCI_VENDOR_ID_AL) {
+ /* Configure the ALi bridge logic. For non ALi rely on BIOS.
+ Set the south bridge enable bit */
+ pci_read_config_byte(isa_bridge, 0x79, &tmp);
+ if (rev == 0xC2)
+ pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04);
+ else if (rev > 0xC2)
+ pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02);
+ }
+
+ if (rev >= 0x20) {
+ if (rev < 0xC2) {
+ /* Are we paired with a UDMA capable chip */
+ pci_read_config_byte(isa_bridge, 0x5E, &tmp);
+ if ((tmp & 0x1E) == 0x12)
+ port_info[0] = port_info[1] = &info_20_udma;
+ }
+ /*
+ * CD_ROM DMA on (0x53 bit 0). Enable this even if we want
+ * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control
+ * via 0x54/55.
+ */
+ pci_read_config_byte(pdev, 0x53, &tmp);
+ if (rev <= 0x20)
+ tmp &= ~0x02;
+ if (rev == 0xc7)
+ tmp |= 0x03;
+ else
+ tmp |= 0x01; /* CD_ROM enable for DMA */
+ pci_write_config_byte(pdev, 0x53, tmp);
+ }
+
+ pci_dev_put(isa_bridge);
+ pci_dev_put(north);
+
+ ata_pci_clear_simplex(pdev);
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static struct pci_device_id ali[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5228), },
+ { PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229), },
+ { 0, },
+};
+
+static struct pci_driver ali_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = ali,
+ .probe = ali_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init ali_init(void)
+{
+ return pci_register_driver(&ali_pci_driver);
+}
+
+
+static void __exit ali_exit(void)
+{
+ pci_unregister_driver(&ali_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for ALi PATA");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, ali);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(ali_init);
+module_exit(ali_exit);
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
new file mode 100644
index 0000000..6ab5684
--- /dev/null
+++ b/drivers/ata/pata_amd.c
@@ -0,0 +1,707 @@
+/*
+ * pata_amd.c - AMD PATA for new ATA layer
+ * (C) 2005-2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based on pata-sil680. Errata information is taken from data sheets
+ * and the amd74xx.c driver by Vojtech Pavlik. Nvidia SATA devices are
+ * claimed by sata-nv.c.
+ *
+ * TODO:
+ * Variable system clock when/if it makes sense
+ * Power management on ports
+ *
+ *
+ * Documentation publically available.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_amd"
+#define DRV_VERSION "0.2.2"
+
+/**
+ * timing_setup - shared timing computation and load
+ * @ap: ATA port being set up
+ * @adev: drive being configured
+ * @offset: port offset
+ * @speed: target speed
+ * @clock: clock multiplier (number of times 33MHz for this part)
+ *
+ * Perform the actual timing set up for Nvidia or AMD PATA devices.
+ * The actual devices vary so they all call into this helper function
+ * providing the clock multipler and offset (because AMD and Nvidia put
+ * the ports at different locations).
+ */
+
+static void timing_setup(struct ata_port *ap, struct ata_device *adev, int offset, int speed, int clock)
+{
+ static const unsigned char amd_cyc2udma[] = {
+ 6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct ata_device *peer = ata_dev_pair(adev);
+ int dn = ap->port_no * 2 + adev->devno;
+ struct ata_timing at, apeer;
+ int T, UT;
+ const int amd_clock = 33333; /* KHz. */
+ u8 t;
+
+ T = 1000000000 / amd_clock;
+ UT = T / min_t(int, max_t(int, clock, 1), 2);
+
+ if (ata_timing_compute(adev, speed, &at, T, UT) < 0) {
+ dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", speed);
+ return;
+ }
+
+ if (peer) {
+ /* This may be over conservative */
+ if (peer->dma_mode) {
+ ata_timing_compute(peer, peer->dma_mode, &apeer, T, UT);
+ ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
+ }
+ ata_timing_compute(peer, peer->pio_mode, &apeer, T, UT);
+ ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
+ }
+
+ if (speed == XFER_UDMA_5 && amd_clock <= 33333) at.udma = 1;
+ if (speed == XFER_UDMA_6 && amd_clock <= 33333) at.udma = 15;
+
+ /*
+ * Now do the setup work
+ */
+
+ /* Configure the address set up timing */
+ pci_read_config_byte(pdev, offset + 0x0C, &t);
+ t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(at.setup, 1, 4) - 1) << ((3 - dn) << 1));
+ pci_write_config_byte(pdev, offset + 0x0C , t);
+
+ /* Configure the 8bit I/O timing */
+ pci_write_config_byte(pdev, offset + 0x0E + (1 - (dn >> 1)),
+ ((FIT(at.act8b, 1, 16) - 1) << 4) | (FIT(at.rec8b, 1, 16) - 1));
+
+ /* Drive timing */
+ pci_write_config_byte(pdev, offset + 0x08 + (3 - dn),
+ ((FIT(at.active, 1, 16) - 1) << 4) | (FIT(at.recover, 1, 16) - 1));
+
+ switch (clock) {
+ case 1:
+ t = at.udma ? (0xc0 | (FIT(at.udma, 2, 5) - 2)) : 0x03;
+ break;
+
+ case 2:
+ t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 2, 10)]) : 0x03;
+ break;
+
+ case 3:
+ t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 10)]) : 0x03;
+ break;
+
+ case 4:
+ t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 15)]) : 0x03;
+ break;
+
+ default:
+ return;
+ }
+
+ /* UDMA timing */
+ pci_write_config_byte(pdev, offset + 0x10 + (3 - dn), t);
+}
+
+/**
+ * amd_probe_init - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection. The BIOS stores this in PCI config
+ * space for us.
+ */
+
+static int amd_pre_reset(struct ata_port *ap)
+{
+ static const u32 bitmask[2] = {0x03, 0xC0};
+ static const struct pci_bits amd_enable_bits[] = {
+ { 0x40, 1, 0x02, 0x02 },
+ { 0x40, 1, 0x01, 0x01 }
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ata66;
+
+ if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+
+ pci_read_config_byte(pdev, 0x42, &ata66);
+ if (ata66 & bitmask[ap->port_no])
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+
+}
+
+static void amd_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, amd_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+static int amd_early_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static struct pci_bits amd_enable_bits[] = {
+ { 0x40, 1, 0x02, 0x02 },
+ { 0x40, 1, 0x01, 0x01 }
+ };
+
+ if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ /* No host side cable detection */
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+
+}
+
+static void amd_early_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, amd_early_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+/**
+ * amd33_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the AMD registers for PIO mode.
+ */
+
+static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
+}
+
+static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
+}
+
+static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
+}
+
+static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
+}
+
+/**
+ * amd33_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the MWDMA/UDMA modes for the AMD and Nvidia
+ * chipset.
+ */
+
+static void amd33_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 1);
+}
+
+static void amd66_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 2);
+}
+
+static void amd100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 3);
+}
+
+static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x40, adev->dma_mode, 4);
+}
+
+
+/**
+ * nv_probe_init - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection. The BIOS stores this in PCI config
+ * space for us.
+ */
+
+static int nv_pre_reset(struct ata_port *ap) {
+ static const u8 bitmask[2] = {0x03, 0xC0};
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ata66;
+ u16 udma;
+
+ pci_read_config_byte(pdev, 0x52, &ata66);
+ if (ata66 & bitmask[ap->port_no])
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
+
+ /* We now have to double check because the Nvidia boxes BIOS
+ doesn't always set the cable bits but does set mode bits */
+
+ pci_read_config_word(pdev, 0x62 - 2 * ap->port_no, &udma);
+ if ((udma & 0xC4) == 0xC4 || (udma & 0xC400) == 0xC400)
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+static void nv_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, nv_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+/**
+ * nv100_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the AMD registers for PIO mode.
+ */
+
+static void nv100_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->pio_mode, 3);
+}
+
+static void nv133_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->pio_mode, 4);
+}
+
+/**
+ * nv100_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the MWDMA/UDMA modes for the AMD and Nvidia
+ * chipset.
+ */
+
+static void nv100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->dma_mode, 3);
+}
+
+static void nv133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ timing_setup(ap, adev, 0x50, adev->dma_mode, 4);
+}
+
+static struct scsi_host_template amd_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations amd33_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd33_set_piomode,
+ .set_dmamode = amd33_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_early_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations amd66_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd66_set_piomode,
+ .set_dmamode = amd66_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_early_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations amd100_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd100_set_piomode,
+ .set_dmamode = amd100_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations amd133_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = amd133_set_piomode,
+ .set_dmamode = amd133_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = amd_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations nv100_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = nv100_set_piomode,
+ .set_dmamode = nv100_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = nv_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations nv133_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = nv133_set_piomode,
+ .set_dmamode = nv133_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = nv_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info[10] = {
+ { /* 0: AMD 7401 */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07, /* No SWDMA */
+ .udma_mask = 0x07, /* UDMA 33 */
+ .port_ops = &amd33_port_ops
+ },
+ { /* 1: Early AMD7409 - no swdma */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f, /* UDMA 66 */
+ .port_ops = &amd66_port_ops
+ },
+ { /* 2: AMD 7409, no swdma errata */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f, /* UDMA 66 */
+ .port_ops = &amd66_port_ops
+ },
+ { /* 3: AMD 7411 */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &amd100_port_ops
+ },
+ { /* 4: AMD 7441 */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &amd100_port_ops
+ },
+ { /* 5: AMD 8111*/
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f, /* UDMA 133, no swdma */
+ .port_ops = &amd133_port_ops
+ },
+ { /* 6: AMD 8111 UDMA 100 (Serenade) */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100, no swdma */
+ .port_ops = &amd133_port_ops
+ },
+ { /* 7: Nvidia Nforce */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &nv100_port_ops
+ },
+ { /* 8: Nvidia Nforce2 and later */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f, /* UDMA 133, no swdma */
+ .port_ops = &nv133_port_ops
+ },
+ { /* 9: AMD CS5536 (Geode companion) */
+ .sht = &amd_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f, /* UDMA 100 */
+ .port_ops = &amd100_port_ops
+ }
+ };
+ static struct ata_port_info *port_info[2];
+ static int printed_version;
+ int type = id->driver_data;
+ u8 rev;
+ u8 fifo;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
+ pci_read_config_byte(pdev, 0x41, &fifo);
+
+ /* Check for AMD7409 without swdma errata and if found adjust type */
+ if (type == 1 && rev > 0x7)
+ type = 2;
+
+ /* Check for AMD7411 */
+ if (type == 3)
+ /* FIFO is broken */
+ pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
+ else
+ pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
+
+ /* Serenade ? */
+ if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
+ pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
+ type = 6; /* UDMA 100 only */
+
+ if (type < 3)
+ ata_pci_clear_simplex(pdev);
+
+ /* And fire it up */
+
+ port_info[0] = port_info[1] = &info[type];
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id amd[] = {
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_COBRA_7401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7409, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7411, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_OPUS_7441, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
+ { 0, },
+};
+
+static struct pci_driver amd_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = amd,
+ .probe = amd_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init amd_init(void)
+{
+ return pci_register_driver(&amd_pci_driver);
+}
+
+static void __exit amd_exit(void)
+{
+ pci_unregister_driver(&amd_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for AMD PATA IDE");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, amd);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(amd_init);
+module_exit(amd_exit);
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
new file mode 100644
index 0000000..d6ef3bf
--- /dev/null
+++ b/drivers/ata/pata_artop.c
@@ -0,0 +1,518 @@
+/*
+ * pata_artop.c - ARTOP ATA controller driver
+ *
+ * (C) 2006 Red Hat <alan@redhat.com>
+ *
+ * Based in part on drivers/ide/pci/aec62xx.c
+ * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
+ * 865/865R fixes for Macintosh card version from a patch to the old
+ * driver by Thibaut VARENE <varenet@parisc-linux.org>
+ * When setting the PCI latency we must set 0x80 or higher for burst
+ * performance Alessandro Zummo <alessandro.zummo@towertech.it>
+ *
+ * TODO
+ * 850 serialization once the core supports it
+ * Investigate no_dsc on 850R
+ * Clock detect
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_artop"
+#define DRV_VERSION "0.4.1"
+
+/*
+ * The ARTOP has 33 Mhz and "over clocked" timing tables. Until we
+ * get PCI bus speed functionality we leave this as 0. Its a variable
+ * for when we get the functionality and also for folks wanting to
+ * test stuff.
+ */
+
+static int clock = 0;
+
+static int artop6210_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ const struct pci_bits artop_enable_bits[] = {
+ { 0x4AU, 1U, 0x02UL, 0x02UL }, /* port 0 */
+ { 0x4AU, 1U, 0x04UL, 0x04UL }, /* port 1 */
+ };
+
+ if (!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * artop6210_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6210_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, artop6210_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+/**
+ * artop6260_pre_reset - check for 40/80 pin
+ * @ap: Port
+ *
+ * The ARTOP hardware reports the cable detect bits in register 0x49.
+ * Nothing complicated needed here.
+ */
+
+static int artop6260_pre_reset(struct ata_port *ap)
+{
+ static const struct pci_bits artop_enable_bits[] = {
+ { 0x4AU, 1U, 0x02UL, 0x02UL }, /* port 0 */
+ { 0x4AU, 1U, 0x04UL, 0x04UL }, /* port 1 */
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 tmp;
+
+ /* Odd numbered device ids are the units with enable bits (the -R cards) */
+ if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ pci_read_config_byte(pdev, 0x49, &tmp);
+ if (tmp & (1 >> ap->port_no))
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * artop6260_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6260_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, artop6260_pre_reset,
+ ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
+/**
+ * artop6210_load_piomode - Load a set of PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device
+ * @pio: PIO mode
+ *
+ * Set PIO mode for device, in host controller PCI config space. This
+ * is used both to set PIO timings in PIO mode and also to set the
+ * matching PIO clocking for UDMA, as well as the MWDMA timings.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6210_load_piomode(struct ata_port *ap, struct ata_device *adev, unsigned int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ const u16 timing[2][5] = {
+ { 0x0000, 0x000A, 0x0008, 0x0303, 0x0301 },
+ { 0x0700, 0x070A, 0x0708, 0x0403, 0x0401 }
+
+ };
+ /* Load the PIO timing active/recovery bits */
+ pci_write_config_word(pdev, 0x40 + 2 * dn, timing[clock][pio]);
+}
+
+/**
+ * artop6210_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ *
+ * Set PIO mode for device, in host controller PCI config space. For
+ * ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
+ * the event UDMA is used the later call to set_dmamode will set the
+ * bits as required.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6210_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ u8 ultra;
+
+ artop6210_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
+
+ /* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
+ pci_read_config_byte(pdev, 0x54, &ultra);
+ ultra &= ~(3 << (2 * dn));
+ pci_write_config_byte(pdev, 0x54, ultra);
+}
+
+/**
+ * artop6260_load_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ * @pio: PIO mode
+ *
+ * Set PIO mode for device, in host controller PCI config space. The
+ * ARTOP6260 and relatives store the timing data differently.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6260_load_piomode (struct ata_port *ap, struct ata_device *adev, unsigned int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ const u8 timing[2][5] = {
+ { 0x00, 0x0A, 0x08, 0x33, 0x31 },
+ { 0x70, 0x7A, 0x78, 0x43, 0x41 }
+
+ };
+ /* Load the PIO timing active/recovery bits */
+ pci_write_config_byte(pdev, 0x40 + dn, timing[clock][pio]);
+}
+
+/**
+ * artop6260_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ *
+ * Set PIO mode for device, in host controller PCI config space. For
+ * ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
+ * the event UDMA is used the later call to set_dmamode will set the
+ * bits as required.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6260_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ultra;
+
+ artop6260_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
+
+ /* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
+ pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
+ ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
+ pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
+}
+
+/**
+ * artop6210_set_dmamode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set DMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6210_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ u8 ultra;
+
+ if (adev->dma_mode == XFER_MW_DMA_0)
+ pio = 1;
+ else
+ pio = 4;
+
+ /* Load the PIO timing active/recovery bits */
+ artop6210_load_piomode(ap, adev, pio);
+
+ pci_read_config_byte(pdev, 0x54, &ultra);
+ ultra &= ~(3 << (2 * dn));
+
+ /* Add ultra DMA bits if in UDMA mode */
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ u8 mode = (adev->dma_mode - XFER_UDMA_0) + 1 - clock;
+ if (mode == 0)
+ mode = 1;
+ ultra |= (mode << (2 * dn));
+ }
+ pci_write_config_byte(pdev, 0x54, ultra);
+}
+
+/**
+ * artop6260_set_dmamode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ *
+ * Set DMA mode for device, in host controller PCI config space. The
+ * ARTOP6260 and relatives store the timing data differently.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void artop6260_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio = adev->pio_mode - XFER_PIO_0;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ultra;
+
+ if (adev->dma_mode == XFER_MW_DMA_0)
+ pio = 1;
+ else
+ pio = 4;
+
+ /* Load the PIO timing active/recovery bits */
+ artop6260_load_piomode(ap, adev, pio);
+
+ /* Add ultra DMA bits if in UDMA mode */
+ pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
+ ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ u8 mode = adev->dma_mode - XFER_UDMA_0 + 1 - clock;
+ if (mode == 0)
+ mode = 1;
+ ultra |= (mode << (4 * adev->devno));
+ }
+ pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
+}
+
+static struct scsi_host_template artop_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static const struct ata_port_operations artop6210_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = artop6210_set_piomode,
+ .set_dmamode = artop6210_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = artop6210_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+static const struct ata_port_operations artop6260_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = artop6260_set_piomode,
+ .set_dmamode = artop6260_set_dmamode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = artop6260_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+
+/**
+ * artop_init_one - Register ARTOP ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in artop_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int artop_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static int printed_version;
+ static struct ata_port_info info_6210 = {
+ .sht = &artop_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = ATA_UDMA2,
+ .port_ops = &artop6210_ops,
+ };
+ static struct ata_port_info info_626x = {
+ .sht = &artop_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = ATA_UDMA4,
+ .port_ops = &artop6260_ops,
+ };
+ static struct ata_port_info info_626x_fast = {
+ .sht = &artop_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = ATA_UDMA5,
+ .port_ops = &artop6260_ops,
+ };
+ struct ata_port_info *port_info[2];
+ struct ata_port_info *info;
+ int ports = 2;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "version " DRV_VERSION "\n");
+
+ if (id->driver_data == 0) { /* 6210 variant */
+ info = &info_6210;
+ /* BIOS may have left us in UDMA, clear it before libata probe */
+ pci_write_config_byte(pdev, 0x54, 0);
+ /* For the moment (also lacks dsc) */
+ printk(KERN_WARNING "ARTOP 6210 requires serialize functionality not yet supported by libata.\n");
+ printk(KERN_WARNING "Secondary ATA ports will not be activated.\n");
+ ports = 1;
+ }
+ else if (id->driver_data == 1) /* 6260 */
+ info = &info_626x;
+ else if (id->driver_data == 2) { /* 6260 or 6260 + fast */
+ unsigned long io = pci_resource_start(pdev, 4);
+ u8 reg;
+
+ info = &info_626x;
+ if (inb(io) & 0x10)
+ info = &info_626x_fast;
+ /* Mac systems come up with some registers not set as we
+ will need them */
+
+ /* Clear reset & test bits */
+ pci_read_config_byte(pdev, 0x49, ®);
+ pci_write_config_byte(pdev, 0x49, reg & ~ 0x30);
+
+ /* PCI latency must be > 0x80 for burst mode, tweak it
+ * if required.
+ */
+ pci_read_config_byte(pdev, PCI_LATENCY_TIMER, ®);
+ if (reg <= 0x80)
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x90);
+
+ /* Enable IRQ output and burst mode */
+ pci_read_config_byte(pdev, 0x4a, ®);
+ pci_write_config_byte(pdev, 0x4a, (reg & ~0x01) | 0x80);
+
+ }
+ port_info[0] = port_info[1] = info;
+ return ata_pci_init_one(pdev, port_info, ports);
+}
+
+static const struct pci_device_id artop_pci_tbl[] = {
+ { 0x1191, 0x0005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0x1191, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { 0x1191, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { 0x1191, 0x0008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { 0x1191, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { } /* terminate list */
+};
+
+static struct pci_driver artop_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = artop_pci_tbl,
+ .probe = artop_init_one,
+ .remove = ata_pci_remove_one,
+};
+
+static int __init artop_init(void)
+{
+ return pci_register_driver(&artop_pci_driver);
+}
+
+static void __exit artop_exit(void)
+{
+ pci_unregister_driver(&artop_pci_driver);
+}
+
+
+module_init(artop_init);
+module_exit(artop_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for ARTOP PATA");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, artop_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
new file mode 100644
index 0000000..3f78a1e
--- /dev/null
+++ b/drivers/ata/pata_atiixp.c
@@ -0,0 +1,306 @@
+/*
+ * pata_atiixp.c - ATI PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based on
+ *
+ * linux/drivers/ide/pci/atiixp.c Version 0.01-bart2 Feb. 26, 2004
+ *
+ * Copyright (C) 2003 ATI Inc. <hyu@ati.com>
+ * Copyright (C) 2004 Bartlomiej Zolnierkiewicz
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_atiixp"
+#define DRV_VERSION "0.4.2"
+
+enum {
+ ATIIXP_IDE_PIO_TIMING = 0x40,
+ ATIIXP_IDE_MWDMA_TIMING = 0x44,
+ ATIIXP_IDE_PIO_CONTROL = 0x48,
+ ATIIXP_IDE_PIO_MODE = 0x4a,
+ ATIIXP_IDE_UDMA_CONTROL = 0x54,
+ ATIIXP_IDE_UDMA_MODE = 0x56
+};
+
+static int atiixp_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static struct pci_bits atiixp_enable_bits[] = {
+ { 0x48, 1, 0x01, 0x00 },
+ { 0x48, 1, 0x08, 0x00 }
+ };
+
+ if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+static void atiixp_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, atiixp_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * atiixp_set_pio_timing - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called by both the pio and dma setup functions to set the controller
+ * timings for PIO transfers. We must load both the mode number and
+ * timing values into the controller.
+ */
+
+static void atiixp_set_pio_timing(struct ata_port *ap, struct ata_device *adev, int pio)
+{
+ static u8 pio_timings[5] = { 0x5D, 0x47, 0x34, 0x22, 0x20 };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = 2 * ap->port_no + adev->devno;
+
+ /* Check this is correct - the order is odd in both drivers */
+ int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);
+ u16 pio_mode_data, pio_timing_data;
+
+ pci_read_config_word(pdev, ATIIXP_IDE_PIO_MODE, &pio_mode_data);
+ pio_mode_data &= ~(0x7 << (4 * dn));
+ pio_mode_data |= pio << (4 * dn);
+ pci_write_config_word(pdev, ATIIXP_IDE_PIO_MODE, pio_mode_data);
+
+ pci_read_config_word(pdev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data);
+ pio_mode_data &= ~(0xFF << timing_shift);
+ pio_mode_data |= (pio_timings[pio] << timing_shift);
+ pci_write_config_word(pdev, ATIIXP_IDE_PIO_TIMING, pio_timing_data);
+}
+
+/**
+ * atiixp_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup. We use a shared helper for this
+ * as the DMA setup must also adjust the PIO timing information.
+ */
+
+static void atiixp_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ atiixp_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0);
+}
+
+/**
+ * atiixp_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the DMA mode setup. We use timing tables for most
+ * modes but must tune an appropriate PIO mode to match.
+ */
+
+static void atiixp_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static u8 mwdma_timings[5] = { 0x77, 0x21, 0x20 };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dma = adev->dma_mode;
+ int dn = 2 * ap->port_no + adev->devno;
+ int wanted_pio;
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ u16 udma_mode_data;
+
+ dma -= XFER_UDMA_0;
+
+ pci_read_config_word(pdev, ATIIXP_IDE_UDMA_MODE, &udma_mode_data);
+ udma_mode_data &= ~(0x7 << (4 * dn));
+ udma_mode_data |= dma << (4 * dn);
+ pci_write_config_word(pdev, ATIIXP_IDE_UDMA_MODE, udma_mode_data);
+ } else {
+ u16 mwdma_timing_data;
+ /* Check this is correct - the order is odd in both drivers */
+ int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);
+
+ dma -= XFER_MW_DMA_0;
+
+ pci_read_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, &mwdma_timing_data);
+ mwdma_timing_data &= ~(0xFF << timing_shift);
+ mwdma_timing_data |= (mwdma_timings[dma] << timing_shift);
+ pci_write_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, mwdma_timing_data);
+ }
+ /*
+ * We must now look at the PIO mode situation. We may need to
+ * adjust the PIO mode to keep the timings acceptable
+ */
+ if (adev->dma_mode >= XFER_MW_DMA_2)
+ wanted_pio = 4;
+ else if (adev->dma_mode == XFER_MW_DMA_1)
+ wanted_pio = 3;
+ else if (adev->dma_mode == XFER_MW_DMA_0)
+ wanted_pio = 0;
+ else BUG();
+
+ if (adev->pio_mode != wanted_pio)
+ atiixp_set_pio_timing(ap, adev, wanted_pio);
+}
+
+/**
+ * atiixp_bmdma_start - DMA start callback
+ * @qc: Command in progress
+ *
+ * When DMA begins we need to ensure that the UDMA control
+ * register for the channel is correctly set.
+ */
+
+static void atiixp_bmdma_start(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = (2 * ap->port_no) + adev->devno;
+ u16 tmp16;
+
+ pci_read_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, &tmp16);
+ if (adev->dma_mode >= XFER_UDMA_0)
+ tmp16 |= (1 << dn);
+ else
+ tmp16 &= ~(1 << dn);
+ pci_write_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, tmp16);
+ ata_bmdma_start(qc);
+}
+
+/**
+ * atiixp_dma_stop - DMA stop callback
+ * @qc: Command in progress
+ *
+ * DMA has completed. Clear the UDMA flag as the next operations will
+ * be PIO ones not UDMA data transfer.
+ */
+
+static void atiixp_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = (2 * ap->port_no) + qc->dev->devno;
+ u16 tmp16;
+
+ pci_read_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, &tmp16);
+ tmp16 &= ~(1 << dn);
+ pci_write_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, tmp16);
+ ata_bmdma_stop(qc);
+}
+
+static struct scsi_host_template atiixp_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations atiixp_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = atiixp_set_piomode,
+ .set_dmamode = atiixp_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = atiixp_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = atiixp_bmdma_start,
+ .bmdma_stop = atiixp_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &atiixp_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x06, /* No MWDMA0 support */
+ .udma_mask = 0x3F,
+ .port_ops = &atiixp_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id atiixp[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_IDE), },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_IDE), },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), },
+ { 0, },
+};
+
+static struct pci_driver atiixp_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = atiixp,
+ .probe = atiixp_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init atiixp_init(void)
+{
+ return pci_register_driver(&atiixp_pci_driver);
+}
+
+
+static void __exit atiixp_exit(void)
+{
+ pci_unregister_driver(&atiixp_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for ATI IXP200/300/400");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, atiixp);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(atiixp_init);
+module_exit(atiixp_exit);
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
new file mode 100644
index 0000000..03284611
--- /dev/null
+++ b/drivers/ata/pata_cmd64x.c
@@ -0,0 +1,505 @@
+/*
+ * pata_cmd64x.c - ATI PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based upon
+ * linux/drivers/ide/pci/cmd64x.c Version 1.30 Sept 10, 2002
+ *
+ * cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines.
+ * Note, this driver is not used at all on other systems because
+ * there the "BIOS" has done all of the following already.
+ * Due to massive hardware bugs, UltraDMA is only supported
+ * on the 646U2 and not on the 646U.
+ *
+ * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
+ * Copyright (C) 1998 David S. Miller (davem@redhat.com)
+ *
+ * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
+ *
+ * TODO
+ * Testing work
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_cmd64x"
+#define DRV_VERSION "0.2.1"
+
+/*
+ * CMD64x specific registers definition.
+ */
+
+enum {
+ CFR = 0x50,
+ CFR_INTR_CH0 = 0x02,
+ CNTRL = 0x51,
+ CNTRL_DIS_RA0 = 0x40,
+ CNTRL_DIS_RA1 = 0x80,
+ CNTRL_ENA_2ND = 0x08,
+ CMDTIM = 0x52,
+ ARTTIM0 = 0x53,
+ DRWTIM0 = 0x54,
+ ARTTIM1 = 0x55,
+ DRWTIM1 = 0x56,
+ ARTTIM23 = 0x57,
+ ARTTIM23_DIS_RA2 = 0x04,
+ ARTTIM23_DIS_RA3 = 0x08,
+ ARTTIM23_INTR_CH1 = 0x10,
+ ARTTIM2 = 0x57,
+ ARTTIM3 = 0x57,
+ DRWTIM23 = 0x58,
+ DRWTIM2 = 0x58,
+ BRST = 0x59,
+ DRWTIM3 = 0x5b,
+ BMIDECR0 = 0x70,
+ MRDMODE = 0x71,
+ MRDMODE_INTR_CH0 = 0x04,
+ MRDMODE_INTR_CH1 = 0x08,
+ MRDMODE_BLK_CH0 = 0x10,
+ MRDMODE_BLK_CH1 = 0x20,
+ BMIDESR0 = 0x72,
+ UDIDETCR0 = 0x73,
+ DTPR0 = 0x74,
+ BMIDECR1 = 0x78,
+ BMIDECSR = 0x79,
+ BMIDESR1 = 0x7A,
+ UDIDETCR1 = 0x7B,
+ DTPR1 = 0x7C
+};
+
+static int cmd64x_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+static int cmd648_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 r;
+
+ /* Check cable detect bits */
+ pci_read_config_byte(pdev, BMIDECSR, &r);
+ if (r & (1 << ap->port_no))
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
+
+ return ata_std_prereset(ap);
+}
+
+static void cmd64x_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, cmd64x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+static void cmd648_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, cmd648_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * cmd64x_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup.
+ */
+
+static void cmd64x_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct ata_timing t;
+ const unsigned long T = 1000000 / 33;
+ const u8 setup_data[] = { 0x40, 0x40, 0x40, 0x80, 0x00 };
+
+ u8 reg;
+
+ /* Port layout is not logical so use a table */
+ const u8 arttim_port[2][2] = {
+ { ARTTIM0, ARTTIM1 },
+ { ARTTIM23, ARTTIM23 }
+ };
+ const u8 drwtim_port[2][2] = {
+ { DRWTIM0, DRWTIM1 },
+ { DRWTIM2, DRWTIM3 }
+ };
+
+ int arttim = arttim_port[ap->port_no][adev->devno];
+ int drwtim = drwtim_port[ap->port_no][adev->devno];
+
+
+ if (ata_timing_compute(adev, adev->pio_mode, &t, T, 0) < 0) {
+ printk(KERN_ERR DRV_NAME ": mode computation failed.\n");
+ return;
+ }
+ if (ap->port_no) {
+ /* Slave has shared address setup */
+ struct ata_device *pair = ata_dev_pair(adev);
+
+ if (pair) {
+ struct ata_timing tp;
+ ata_timing_compute(pair, pair->pio_mode, &tp, T, 0);
+ ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP);
+ }
+ }
+
+ printk(KERN_DEBUG DRV_NAME ": active %d recovery %d setup %d.\n",
+ t.active, t.recover, t.setup);
+ if (t.recover > 16) {
+ t.active += t.recover - 16;
+ t.recover = 16;
+ }
+ if (t.active > 16)
+ t.active = 16;
+
+ /* Now convert the clocks into values we can actually stuff into
+ the chip */
+
+ if (t.recover > 1)
+ t.recover--;
+ else
+ t.recover = 15;
+
+ if (t.setup > 4)
+ t.setup = 0xC0;
+ else
+ t.setup = setup_data[t.setup];
+
+ t.active &= 0x0F; /* 0 = 16 */
+
+ /* Load setup timing */
+ pci_read_config_byte(pdev, arttim, ®);
+ reg &= 0x3F;
+ reg |= t.setup;
+ pci_write_config_byte(pdev, arttim, reg);
+
+ /* Load active/recovery */
+ pci_write_config_byte(pdev, drwtim, (t.active << 4) | t.recover);
+}
+
+/**
+ * cmd64x_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the DMA mode setup.
+ */
+
+static void cmd64x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u8 udma_data[] = {
+ 0x31, 0x21, 0x11, 0x25, 0x15, 0x05
+ };
+ static const u8 mwdma_data[] = {
+ 0x30, 0x20, 0x10
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 regU, regD;
+
+ int pciU = UDIDETCR0 + 8 * ap->port_no;
+ int pciD = BMIDESR0 + 8 * ap->port_no;
+ int shift = 2 * adev->devno;
+
+ pci_read_config_byte(pdev, pciD, ®D);
+ pci_read_config_byte(pdev, pciU, ®U);
+
+ regD &= ~(0x20 << shift);
+ regU &= ~(0x35 << shift);
+
+ if (adev->dma_mode >= XFER_UDMA_0)
+ regU |= udma_data[adev->dma_mode - XFER_UDMA_0] << shift;
+ else
+ regD |= mwdma_data[adev->dma_mode - XFER_MW_DMA_0] << shift;
+
+ regD |= 0x20 << adev->devno;
+
+ pci_write_config_byte(pdev, pciU, regU);
+ pci_write_config_byte(pdev, pciD, regD);
+}
+
+/**
+ * cmd648_dma_stop - DMA stop callback
+ * @qc: Command in progress
+ *
+ * DMA has completed.
+ */
+
+static void cmd648_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 dma_intr;
+ int dma_reg = ap->port_no ? ARTTIM23_INTR_CH1 : CFR_INTR_CH0;
+ int dma_mask = ap->port_no ? ARTTIM2 : CFR;
+
+ ata_bmdma_stop(qc);
+
+ pci_read_config_byte(pdev, dma_reg, &dma_intr);
+ pci_write_config_byte(pdev, dma_reg, dma_intr | dma_mask);
+}
+
+/**
+ * cmd646r1_dma_stop - DMA stop callback
+ * @qc: Command in progress
+ *
+ * Stub for now while investigating the r1 quirk in the old driver.
+ */
+
+static void cmd646r1_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ ata_bmdma_stop(qc);
+}
+
+static struct scsi_host_template cmd64x_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations cmd64x_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = cmd64x_set_piomode,
+ .set_dmamode = cmd64x_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = cmd64x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations cmd646r1_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = cmd64x_set_piomode,
+ .set_dmamode = cmd64x_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = cmd64x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = cmd646r1_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations cmd648_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = cmd64x_set_piomode,
+ .set_dmamode = cmd64x_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = cmd648_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = cmd648_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ u32 class_rev;
+
+ static struct ata_port_info cmd_info[6] = {
+ { /* CMD 643 - no UDMA */
+ .sht = &cmd64x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &cmd64x_port_ops
+ },
+ { /* CMD 646 with broken UDMA */
+ .sht = &cmd64x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &cmd64x_port_ops
+ },
+ { /* CMD 646 with working UDMA */
+ .sht = &cmd64x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA1,
+ .port_ops = &cmd64x_port_ops
+ },
+ { /* CMD 646 rev 1 */
+ .sht = &cmd64x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &cmd646r1_port_ops
+ },
+ { /* CMD 648 */
+ .sht = &cmd64x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA2,
+ .port_ops = &cmd648_port_ops
+ },
+ { /* CMD 649 */
+ .sht = &cmd64x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA3,
+ .port_ops = &cmd648_port_ops
+ }
+ };
+ static struct ata_port_info *port_info[2], *info;
+ u8 mrdmode;
+
+ info = &cmd_info[id->driver_data];
+
+ pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xFF;
+
+ if (id->driver_data == 0) /* 643 */
+ ata_pci_clear_simplex(pdev);
+
+ if (pdev->device == PCI_DEVICE_ID_CMD_646) {
+ /* Does UDMA work ? */
+ if (class_rev > 4)
+ info = &cmd_info[2];
+ /* Early rev with other problems ? */
+ else if (class_rev == 1)
+ info = &cmd_info[3];
+ }
+
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
+ pci_read_config_byte(pdev, MRDMODE, &mrdmode);
+ mrdmode &= ~ 0x30; /* IRQ set up */
+ mrdmode |= 0x02; /* Memory read line enable */
+ pci_write_config_byte(pdev, MRDMODE, mrdmode);
+
+ /* Force PIO 0 here.. */
+
+ /* PPC specific fixup copied from old driver */
+#ifdef CONFIG_PPC
+ pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
+#endif
+
+ port_info[0] = port_info[1] = info;
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static struct pci_device_id cmd64x[] = {
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_643, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_648, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+ { 0, },
+};
+
+static struct pci_driver cmd64x_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = cmd64x,
+ .probe = cmd64x_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init cmd64x_init(void)
+{
+ return pci_register_driver(&cmd64x_pci_driver);
+}
+
+
+static void __exit cmd64x_exit(void)
+{
+ pci_unregister_driver(&cmd64x_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for CMD64x series PATA controllers");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, cmd64x);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(cmd64x_init);
+module_exit(cmd64x_exit);
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
new file mode 100644
index 0000000..792ce48
--- /dev/null
+++ b/drivers/ata/pata_cs5520.c
@@ -0,0 +1,336 @@
+/*
+ * IDE tuning and bus mastering support for the CS5510/CS5520
+ * chipsets
+ *
+ * The CS5510/CS5520 are slightly unusual devices. Unlike the
+ * typical IDE controllers they do bus mastering with the drive in
+ * PIO mode and smarter silicon.
+ *
+ * The practical upshot of this is that we must always tune the
+ * drive for the right PIO mode. We must also ignore all the blacklists
+ * and the drive bus mastering DMA information. Also to confuse matters
+ * further we can do DMA on PIO only drives.
+ *
+ * DMA on the 5510 also requires we disable_hlt() during DMA on early
+ * revisions.
+ *
+ * *** This driver is strictly experimental ***
+ *
+ * (c) Copyright Red Hat Inc 2002
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Documentation:
+ * Not publically available.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_cs5520"
+#define DRV_VERSION "0.6.2"
+
+struct pio_clocks
+{
+ int address;
+ int assert;
+ int recovery;
+};
+
+static const struct pio_clocks cs5520_pio_clocks[]={
+ {3, 6, 11},
+ {2, 5, 6},
+ {1, 4, 3},
+ {1, 3, 2},
+ {1, 2, 1}
+};
+
+/**
+ * cs5520_set_timings - program PIO timings
+ * @ap: ATA port
+ * @adev: ATA device
+ *
+ * Program the PIO mode timings for the controller according to the pio
+ * clocking table.
+ */
+
+static void cs5520_set_timings(struct ata_port *ap, struct ata_device *adev, int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int slave = adev->devno;
+
+ pio -= XFER_PIO_0;
+
+ /* Channel command timing */
+ pci_write_config_byte(pdev, 0x62 + ap->port_no,
+ (cs5520_pio_clocks[pio].recovery << 4) |
+ (cs5520_pio_clocks[pio].assert));
+ /* FIXME: should these use address ? */
+ /* Read command timing */
+ pci_write_config_byte(pdev, 0x64 + 4*ap->port_no + slave,
+ (cs5520_pio_clocks[pio].recovery << 4) |
+ (cs5520_pio_clocks[pio].assert));
+ /* Write command timing */
+ pci_write_config_byte(pdev, 0x66 + 4*ap->port_no + slave,
+ (cs5520_pio_clocks[pio].recovery << 4) |
+ (cs5520_pio_clocks[pio].assert));
+}
+
+/**
+ * cs5520_enable_dma - turn on DMA bits
+ *
+ * Turn on the DMA bits for this disk. Needed because the BIOS probably
+ * has not done the work for us. Belongs in the core SATA code.
+ */
+
+static void cs5520_enable_dma(struct ata_port *ap, struct ata_device *adev)
+{
+ /* Set the DMA enable/disable flag */
+ u8 reg = inb(ap->ioaddr.bmdma_addr + 0x02);
+ reg |= 1<<(adev->devno + 5);
+ outb(reg, ap->ioaddr.bmdma_addr + 0x02);
+}
+
+/**
+ * cs5520_set_dmamode - program DMA timings
+ * @ap: ATA port
+ * @adev: ATA device
+ *
+ * Program the DMA mode timings for the controller according to the pio
+ * clocking table. Note that this device sets the DMA timings to PIO
+ * mode values. This may seem bizarre but the 5520 architecture talks
+ * PIO mode to the disk and DMA mode to the controller so the underlying
+ * transfers are PIO timed.
+ */
+
+static void cs5520_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const int dma_xlate[3] = { XFER_PIO_0, XFER_PIO_3, XFER_PIO_4 };
+ cs5520_set_timings(ap, adev, dma_xlate[adev->dma_mode]);
+ cs5520_enable_dma(ap, adev);
+}
+
+/**
+ * cs5520_set_piomode - program PIO timings
+ * @ap: ATA port
+ * @adev: ATA device
+ *
+ * Program the PIO mode timings for the controller according to the pio
+ * clocking table. We know pio_mode will equal dma_mode because of the
+ * CS5520 architecture. At least once we turned DMA on and wrote a
+ * mode setter.
+ */
+
+static void cs5520_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ cs5520_set_timings(ap, adev, adev->pio_mode);
+}
+
+
+static int cs5520_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+static void cs5520_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, cs5520_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+static struct scsi_host_template cs5520_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations cs5520_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = cs5520_set_piomode,
+ .set_dmamode = cs5520_set_dmamode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = cs5520_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ u8 pcicfg;
+ static struct ata_probe_ent probe[2];
+ int ports = 0;
+
+ /* IDE port enable bits */
+ pci_read_config_byte(dev, 0x60, &pcicfg);
+
+ /* Check if the ATA ports are enabled */
+ if ((pcicfg & 3) == 0)
+ return -ENODEV;
+
+ if ((pcicfg & 0x40) == 0) {
+ printk(KERN_WARNING DRV_NAME ": DMA mode disabled. Enabling.\n");
+ pci_write_config_byte(dev, 0x60, pcicfg | 0x40);
+ }
+
+ /* Perform set up for DMA */
+ if (pci_enable_device_bars(dev, 1<<2)) {
+ printk(KERN_ERR DRV_NAME ": unable to configure BAR2.\n");
+ return -ENODEV;
+ }
+ pci_set_master(dev);
+ if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
+ printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
+ return -ENODEV;
+ }
+ if (pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) {
+ printk(KERN_ERR DRV_NAME ": unable to configure consistent DMA mask.\n");
+ return -ENODEV;
+ }
+
+ /* We have to do our own plumbing as the PCI setup for this
+ chipset is non-standard so we can't punt to the libata code */
+
+ INIT_LIST_HEAD(&probe[0].node);
+ probe[0].dev = pci_dev_to_dev(dev);
+ probe[0].port_ops = &cs5520_port_ops;
+ probe[0].sht = &cs5520_sht;
+ probe[0].pio_mask = 0x1F;
+ probe[0].mwdma_mask = id->driver_data;
+ probe[0].irq = 14;
+ probe[0].irq_flags = 0;
+ probe[0].port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST;
+ probe[0].n_ports = 1;
+ probe[0].port[0].cmd_addr = 0x1F0;
+ probe[0].port[0].ctl_addr = 0x3F6;
+ probe[0].port[0].altstatus_addr = 0x3F6;
+ probe[0].port[0].bmdma_addr = pci_resource_start(dev, 2);
+
+ /* The secondary lurks at different addresses but is otherwise
+ the same beastie */
+
+ probe[1] = probe[0];
+ INIT_LIST_HEAD(&probe[1].node);
+ probe[1].irq = 15;
+ probe[1].port[0].cmd_addr = 0x170;
+ probe[1].port[0].ctl_addr = 0x376;
+ probe[1].port[0].altstatus_addr = 0x376;
+ probe[1].port[0].bmdma_addr = pci_resource_start(dev, 2) + 8;
+
+ /* Let libata fill in the port details */
+ ata_std_ports(&probe[0].port[0]);
+ ata_std_ports(&probe[1].port[0]);
+
+ /* Now add the ports that are active */
+ if (pcicfg & 1)
+ ports += ata_device_add(&probe[0]);
+ if (pcicfg & 2)
+ ports += ata_device_add(&probe[1]);
+ if (ports)
+ return 0;
+ return -ENODEV;
+}
+
+/**
+ * cs5520_remove_one - device unload
+ * @pdev: PCI device being removed
+ *
+ * Handle an unplug/unload event for a PCI device. Unload the
+ * PCI driver but do not use the default handler as we manage
+ * resources ourself and *MUST NOT* disable the device as it has
+ * other functions.
+ */
+
+static void __devexit cs5520_remove_one(struct pci_dev *pdev)
+{
+ struct device *dev = pci_dev_to_dev(pdev);
+ struct ata_host *host = dev_get_drvdata(dev);
+
+ ata_host_remove(host);
+ dev_set_drvdata(dev, NULL);
+}
+
+/* For now keep DMA off. We can set it for all but A rev CS5510 once the
+ core ATA code can handle it */
+
+static struct pci_device_id pata_cs5520[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510), },
+ { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520), },
+ { 0, },
+};
+
+static struct pci_driver cs5520_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = pata_cs5520,
+ .probe = cs5520_init_one,
+ .remove = cs5520_remove_one
+};
+
+
+static int __init cs5520_init(void)
+{
+ return pci_register_driver(&cs5520_pci_driver);
+}
+
+static void __exit cs5520_exit(void)
+{
+ pci_unregister_driver(&cs5520_pci_driver);
+}
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Cyrix CS5510/5520");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, pata_cs5520);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(cs5520_init);
+module_exit(cs5520_exit);
+
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
new file mode 100644
index 0000000..f3d8a3b
--- /dev/null
+++ b/drivers/ata/pata_cs5530.c
@@ -0,0 +1,387 @@
+/*
+ * pata-cs5530.c - CS5530 PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * based upon cs5530.c by Mark Lord.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Loosely based on the piix & svwks drivers.
+ *
+ * Documentation:
+ * Available from AMD web site.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/dmi.h>
+
+#define DRV_NAME "pata_cs5530"
+#define DRV_VERSION "0.6"
+
+/**
+ * cs5530_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Set our PIO requirements. This is fairly simple on the CS5530
+ * chips.
+ */
+
+static void cs5530_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const unsigned int cs5530_pio_timings[2][5] = {
+ {0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010},
+ {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}
+ };
+ unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
+ u32 tuning;
+ int format;
+
+ /* Find out which table to use */
+ tuning = inl(base + 0x04);
+ format = (tuning & 0x80000000UL) ? 1 : 0;
+
+ /* Now load the right timing register */
+ if (adev->devno)
+ base += 0x08;
+
+ outl(cs5530_pio_timings[format][adev->pio_mode - XFER_PIO_0], base);
+}
+
+/**
+ * cs5530_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ * We cannot mix MWDMA and UDMA without reloading timings each switch
+ * master to slave. We track the last DMA setup in order to minimise
+ * reloads.
+ */
+
+static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
+ u32 tuning, timing = 0;
+ u8 reg;
+
+ /* Find out which table to use */
+ tuning = inl(base + 0x04);
+
+ switch(adev->dma_mode) {
+ case XFER_UDMA_0:
+ timing = 0x00921250;break;
+ case XFER_UDMA_1:
+ timing = 0x00911140;break;
+ case XFER_UDMA_2:
+ timing = 0x00911030;break;
+ case XFER_MW_DMA_0:
+ timing = 0x00077771;break;
+ case XFER_MW_DMA_1:
+ timing = 0x00012121;break;
+ case XFER_MW_DMA_2:
+ timing = 0x00002020;break;
+ default:
+ BUG();
+ }
+ /* Merge in the PIO format bit */
+ timing |= (tuning & 0x80000000UL);
+ if (adev->devno == 0) /* Master */
+ outl(timing, base + 0x04);
+ else {
+ if (timing & 0x00100000)
+ tuning |= 0x00100000; /* UDMA for both */
+ else
+ tuning &= ~0x00100000; /* MWDMA for both */
+ outl(tuning, base + 0x04);
+ outl(timing, base + 0x0C);
+ }
+
+ /* Set the DMA capable bit in the BMDMA area */
+ reg = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+ reg |= (1 << (5 + adev->devno));
+ outb(reg, ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+
+ /* Remember the last DMA setup we did */
+
+ ap->private_data = adev;
+}
+
+/**
+ * cs5530_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings if
+ * neccessary. Specifically we have a problem that there is only
+ * one MWDMA/UDMA bit.
+ */
+
+static unsigned int cs5530_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+ struct ata_device *prev = ap->private_data;
+
+ /* See if the DMA settings could be wrong */
+ if (adev->dma_mode != 0 && adev != prev && prev != NULL) {
+ /* Maybe, but do the channels match MWDMA/UDMA ? */
+ if ((adev->dma_mode >= XFER_UDMA_0 && prev->dma_mode < XFER_UDMA_0) ||
+ (adev->dma_mode < XFER_UDMA_0 && prev->dma_mode >= XFER_UDMA_0))
+ /* Switch the mode bits */
+ cs5530_set_dmamode(ap, adev);
+ }
+
+ return ata_qc_issue_prot(qc);
+}
+
+static int cs5530_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+static void cs5530_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, cs5530_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+
+static struct scsi_host_template cs5530_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations cs5530_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = cs5530_set_piomode,
+ .set_dmamode = cs5530_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = cs5530_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = cs5530_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct dmi_system_id palmax_dmi_table[] = {
+ {
+ .ident = "Palmax PD1100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Cyrix"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Caddis"),
+ },
+ },
+ { }
+};
+
+static int cs5530_is_palmax(void)
+{
+ if (dmi_check_system(palmax_dmi_table)) {
+ printk(KERN_INFO "Palmax PD1100: Disabling DMA on docking port.\n");
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * cs5530_init_one - Initialise a CS5530
+ * @dev: PCI device
+ * @id: Entry in match table
+ *
+ * Install a driver for the newly found CS5530 companion chip. Most of
+ * this is just housekeeping. We have to set the chip up correctly and
+ * turn off various bits of emulation magic.
+ */
+
+static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ int compiler_warning_pointless_fix;
+ struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
+ static struct ata_port_info info = {
+ .sht = &cs5530_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x07,
+ .port_ops = &cs5530_port_ops
+ };
+ /* The docking connector doesn't do UDMA, and it seems not MWDMA */
+ static struct ata_port_info info_palmax_secondary = {
+ .sht = &cs5530_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .port_ops = &cs5530_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ dev = NULL;
+ while ((dev = pci_get_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) {
+ switch (dev->device) {
+ case PCI_DEVICE_ID_CYRIX_PCI_MASTER:
+ master_0 = pci_dev_get(dev);
+ break;
+ case PCI_DEVICE_ID_CYRIX_5530_LEGACY:
+ cs5530_0 = pci_dev_get(dev);
+ break;
+ }
+ }
+ if (!master_0) {
+ printk(KERN_ERR DRV_NAME ": unable to locate PCI MASTER function\n");
+ goto fail_put;
+ }
+ if (!cs5530_0) {
+ printk(KERN_ERR DRV_NAME ": unable to locate CS5530 LEGACY function\n");
+ goto fail_put;
+ }
+
+ pci_set_master(cs5530_0);
+ compiler_warning_pointless_fix = pci_set_mwi(cs5530_0);
+
+ /*
+ * Set PCI CacheLineSize to 16-bytes:
+ * --> Write 0x04 into 8-bit PCI CACHELINESIZE reg of function 0 of the cs5530
+ *
+ * Note: This value is constant because the 5530 is only a Geode companion
+ */
+
+ pci_write_config_byte(cs5530_0, PCI_CACHE_LINE_SIZE, 0x04);
+
+ /*
+ * Disable trapping of UDMA register accesses (Win98 hack):
+ * --> Write 0x5006 into 16-bit reg at offset 0xd0 of function 0 of the cs5530
+ */
+
+ pci_write_config_word(cs5530_0, 0xd0, 0x5006);
+
+ /*
+ * Bit-1 at 0x40 enables MemoryWriteAndInvalidate on internal X-bus:
+ * The other settings are what is necessary to get the register
+ * into a sane state for IDE DMA operation.
+ */
+
+ pci_write_config_byte(master_0, 0x40, 0x1e);
+
+ /*
+ * Set max PCI burst size (16-bytes seems to work best):
+ * 16bytes: set bit-1 at 0x41 (reg value of 0x16)
+ * all others: clear bit-1 at 0x41, and do:
+ * 128bytes: OR 0x00 at 0x41
+ * 256bytes: OR 0x04 at 0x41
+ * 512bytes: OR 0x08 at 0x41
+ * 1024bytes: OR 0x0c at 0x41
+ */
+
+ pci_write_config_byte(master_0, 0x41, 0x14);
+
+ /*
+ * These settings are necessary to get the chip
+ * into a sane state for IDE DMA operation.
+ */
+
+ pci_write_config_byte(master_0, 0x42, 0x00);
+ pci_write_config_byte(master_0, 0x43, 0xc1);
+
+ pci_dev_put(master_0);
+ pci_dev_put(cs5530_0);
+
+ if (cs5530_is_palmax())
+ port_info[1] = &info_palmax_secondary;
+
+ /* Now kick off ATA set up */
+ return ata_pci_init_one(dev, port_info, 2);
+
+fail_put:
+ if (master_0)
+ pci_dev_put(master_0);
+ if (cs5530_0)
+ pci_dev_put(cs5530_0);
+ return -ENODEV;
+}
+
+static struct pci_device_id cs5530[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_IDE), },
+ { 0, },
+};
+
+static struct pci_driver cs5530_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = cs5530,
+ .probe = cs5530_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init cs5530_init(void)
+{
+ return pci_register_driver(&cs5530_pci_driver);
+}
+
+
+static void __exit cs5530_exit(void)
+{
+ pci_unregister_driver(&cs5530_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for the Cyrix/NS/AMD 5530");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, cs5530);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(cs5530_init);
+module_exit(cs5530_exit);
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c
new file mode 100644
index 0000000..69d6b42
--- /dev/null
+++ b/drivers/ata/pata_cs5535.c
@@ -0,0 +1,291 @@
+/*
+ * pata-cs5535.c - CS5535 PATA for new ATA layer
+ * (C) 2005-2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * based upon cs5535.c from AMD <Jens.Altmann@amd.com> as cleaned up and
+ * made readable and Linux style by Wolfgang Zuleger <wolfgang.zuleger@gmx.de
+ * and Alexander Kiausch <alex.kiausch@t-online.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Loosely based on the piix & svwks drivers.
+ *
+ * Documentation:
+ * Available from AMD web site.
+ * TODO
+ * Review errata to see if serializing is neccessary
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <asm/msr.h>
+
+#define DRV_NAME "cs5535"
+#define DRV_VERSION "0.2.10"
+
+/*
+ * The Geode (Aka Athlon GX now) uses an internal MSR based
+ * bus system for control. Demented but there you go.
+ */
+
+#define MSR_ATAC_BASE 0x51300000
+#define ATAC_GLD_MSR_CAP (MSR_ATAC_BASE+0)
+#define ATAC_GLD_MSR_CONFIG (MSR_ATAC_BASE+0x01)
+#define ATAC_GLD_MSR_SMI (MSR_ATAC_BASE+0x02)
+#define ATAC_GLD_MSR_ERROR (MSR_ATAC_BASE+0x03)
+#define ATAC_GLD_MSR_PM (MSR_ATAC_BASE+0x04)
+#define ATAC_GLD_MSR_DIAG (MSR_ATAC_BASE+0x05)
+#define ATAC_IO_BAR (MSR_ATAC_BASE+0x08)
+#define ATAC_RESET (MSR_ATAC_BASE+0x10)
+#define ATAC_CH0D0_PIO (MSR_ATAC_BASE+0x20)
+#define ATAC_CH0D0_DMA (MSR_ATAC_BASE+0x21)
+#define ATAC_CH0D1_PIO (MSR_ATAC_BASE+0x22)
+#define ATAC_CH0D1_DMA (MSR_ATAC_BASE+0x23)
+#define ATAC_PCI_ABRTERR (MSR_ATAC_BASE+0x24)
+
+#define ATAC_BM0_CMD_PRIM 0x00
+#define ATAC_BM0_STS_PRIM 0x02
+#define ATAC_BM0_PRD 0x04
+
+#define CS5535_CABLE_DETECT 0x48
+
+#define CS5535_BAD_PIO(timings) ( (timings&~0x80000000UL)==0x00009172 )
+
+/**
+ * cs5535_pre_reset - detect cable type
+ * @ap: Port to detect on
+ *
+ * Perform cable detection for ATA66 capable cable. Return a libata
+ * cable type.
+ */
+
+static int cs5535_pre_reset(struct ata_port *ap)
+{
+ u8 cable;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ pci_read_config_byte(pdev, CS5535_CABLE_DETECT, &cable);
+ if (cable & 1)
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * cs5535_error_handler - reset/probe
+ * @ap: Port to reset
+ *
+ * Reset and configure a port
+ */
+
+static void cs5535_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, cs5535_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * cs5535_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Set our PIO requirements. The CS5535 is pretty clean about all this
+ */
+
+static void cs5535_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u16 pio_timings[5] = {
+ 0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131
+ };
+ static const u16 pio_cmd_timings[5] = {
+ 0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131
+ };
+ u32 reg, dummy;
+ struct ata_device *pair = ata_dev_pair(adev);
+
+ int mode = adev->pio_mode - XFER_PIO_0;
+ int cmdmode = mode;
+
+ /* Command timing has to be for the lowest of the pair of devices */
+ if (pair) {
+ int pairmode = pair->pio_mode - XFER_PIO_0;
+ cmdmode = min(mode, pairmode);
+ /* Write the other drive timing register if it changed */
+ if (cmdmode < pairmode)
+ wrmsr(ATAC_CH0D0_PIO + 2 * pair->devno,
+ pio_cmd_timings[cmdmode] << 16 | pio_timings[pairmode], 0);
+ }
+ /* Write the drive timing register */
+ wrmsr(ATAC_CH0D0_PIO + 2 * adev->devno,
+ pio_cmd_timings[cmdmode] << 16 | pio_timings[mode], 0);
+
+ /* Set the PIO "format 1" bit in the DMA timing register */
+ rdmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, dummy);
+ wrmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg | 0x80000000UL, 0);
+}
+
+/**
+ * cs5535_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ */
+
+static void cs5535_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u32 udma_timings[5] = {
+ 0x7F7436A1, 0x7F733481, 0x7F723261, 0x7F713161, 0x7F703061
+ };
+ static const u32 mwdma_timings[3] = {
+ 0x7F0FFFF3, 0x7F035352, 0x7F024241
+ };
+ u32 reg, dummy;
+ int mode = adev->dma_mode;
+
+ rdmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, dummy);
+ reg &= 0x80000000UL;
+ if (mode >= XFER_UDMA_0)
+ reg |= udma_timings[mode - XFER_UDMA_0];
+ else
+ reg |= mwdma_timings[mode - XFER_MW_DMA_0];
+ wrmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, 0);
+}
+
+static struct scsi_host_template cs5535_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations cs5535_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = cs5535_set_piomode,
+ .set_dmamode = cs5535_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = cs5535_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * cs5535_init_one - Initialise a CS5530
+ * @dev: PCI device
+ * @id: Entry in match table
+ *
+ * Install a driver for the newly found CS5530 companion chip. Most of
+ * this is just housekeeping. We have to set the chip up correctly and
+ * turn off various bits of emulation magic.
+ */
+
+static int cs5535_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &cs5535_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f,
+ .port_ops = &cs5535_port_ops
+ };
+ struct ata_port_info *ports[1] = { &info };
+
+ u32 timings, dummy;
+
+ /* Check the BIOS set the initial timing clock. If not set the
+ timings for PIO0 */
+ rdmsr(ATAC_CH0D0_PIO, timings, dummy);
+ if (CS5535_BAD_PIO(timings))
+ wrmsr(ATAC_CH0D0_PIO, 0xF7F4F7F4UL, 0);
+ rdmsr(ATAC_CH0D1_PIO, timings, dummy);
+ if (CS5535_BAD_PIO(timings))
+ wrmsr(ATAC_CH0D1_PIO, 0xF7F4F7F4UL, 0);
+ return ata_pci_init_one(dev, ports, 1);
+}
+
+static struct pci_device_id cs5535[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_NS, 0x002D), },
+ { 0, },
+};
+
+static struct pci_driver cs5535_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = cs5535,
+ .probe = cs5535_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init cs5535_init(void)
+{
+ return pci_register_driver(&cs5535_pci_driver);
+}
+
+
+static void __exit cs5535_exit(void)
+{
+ pci_unregister_driver(&cs5535_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox, Jens Altmann, Wolfgan Zuleger, Alexander Kiausch");
+MODULE_DESCRIPTION("low-level driver for the NS/AMD 5530");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, cs5535);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(cs5535_init);
+module_exit(cs5535_exit);
diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c
new file mode 100644
index 0000000..322043d
--- /dev/null
+++ b/drivers/ata/pata_cypress.c
@@ -0,0 +1,227 @@
+/*
+ * pata_cypress.c - Cypress PATA for new ATA layer
+ * (C) 2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based heavily on
+ * linux/drivers/ide/pci/cy82c693.c Version 0.40 Sep. 10, 2002
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_cypress"
+#define DRV_VERSION "0.1.2"
+
+/* here are the offset definitions for the registers */
+
+enum {
+ CY82_IDE_CMDREG = 0x04,
+ CY82_IDE_ADDRSETUP = 0x48,
+ CY82_IDE_MASTER_IOR = 0x4C,
+ CY82_IDE_MASTER_IOW = 0x4D,
+ CY82_IDE_SLAVE_IOR = 0x4E,
+ CY82_IDE_SLAVE_IOW = 0x4F,
+ CY82_IDE_MASTER_8BIT = 0x50,
+ CY82_IDE_SLAVE_8BIT = 0x51,
+
+ CY82_INDEX_PORT = 0x22,
+ CY82_DATA_PORT = 0x23,
+
+ CY82_INDEX_CTRLREG1 = 0x01,
+ CY82_INDEX_CHANNEL0 = 0x30,
+ CY82_INDEX_CHANNEL1 = 0x31,
+ CY82_INDEX_TIMEOUT = 0x32
+};
+
+static int cy82c693_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+static void cy82c693_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, cy82c693_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * cy82c693_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup.
+ */
+
+static void cy82c693_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct ata_timing t;
+ const unsigned long T = 1000000 / 33;
+ short time_16, time_8;
+ u32 addr;
+
+ if (ata_timing_compute(adev, adev->pio_mode, &t, T, 1) < 0) {
+ printk(KERN_ERR DRV_NAME ": mome computation failed.\n");
+ return;
+ }
+
+ time_16 = FIT(t.recover, 0, 15) | (FIT(t.active, 0, 15) << 4);
+ time_8 = FIT(t.act8b, 0, 15) | (FIT(t.rec8b, 0, 15) << 4);
+
+ if (adev->devno == 0) {
+ pci_read_config_dword(pdev, CY82_IDE_ADDRSETUP, &addr);
+
+ addr &= ~0x0F; /* Mask bits */
+ addr |= FIT(t.setup, 0, 15);
+
+ pci_write_config_dword(pdev, CY82_IDE_ADDRSETUP, addr);
+ pci_write_config_byte(pdev, CY82_IDE_MASTER_IOR, time_16);
+ pci_write_config_byte(pdev, CY82_IDE_MASTER_IOW, time_16);
+ pci_write_config_byte(pdev, CY82_IDE_MASTER_8BIT, time_8);
+ } else {
+ pci_read_config_dword(pdev, CY82_IDE_ADDRSETUP, &addr);
+
+ addr &= ~0xF0; /* Mask bits */
+ addr |= (FIT(t.setup, 0, 15) << 4);
+
+ pci_write_config_dword(pdev, CY82_IDE_ADDRSETUP, addr);
+ pci_write_config_byte(pdev, CY82_IDE_SLAVE_IOR, time_16);
+ pci_write_config_byte(pdev, CY82_IDE_SLAVE_IOW, time_16);
+ pci_write_config_byte(pdev, CY82_IDE_SLAVE_8BIT, time_8);
+ }
+}
+
+/**
+ * cy82c693_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the DMA mode setup.
+ */
+
+static void cy82c693_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ int reg = CY82_INDEX_CHANNEL0 + ap->port_no;
+
+ /* Be afraid, be very afraid. Magic registers in low I/O space */
+ outb(reg, 0x22);
+ outb(adev->dma_mode - XFER_MW_DMA_0, 0x23);
+
+ /* 0x50 gives the best behaviour on the Alpha's using this chip */
+ outb(CY82_INDEX_TIMEOUT, 0x22);
+ outb(0x50, 0x23);
+}
+
+static struct scsi_host_template cy82c693_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations cy82c693_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = cy82c693_set_piomode,
+ .set_dmamode = cy82c693_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = cy82c693_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int cy82c693_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &cy82c693_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &cy82c693_port_ops
+ };
+ static struct ata_port_info *port_info[1] = { &info };
+
+ /* Devfn 1 is the ATA primary. The secondary is magic and on devfn2. For the
+ moment we don't handle the secondary. FIXME */
+
+ if (PCI_FUNC(pdev->devfn) != 1)
+ return -ENODEV;
+
+ return ata_pci_init_one(pdev, port_info, 1);
+}
+
+static struct pci_device_id cy82c693[] = {
+ { PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+
+static struct pci_driver cy82c693_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = cy82c693,
+ .probe = cy82c693_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init cy82c693_init(void)
+{
+ return pci_register_driver(&cy82c693_pci_driver);
+}
+
+
+static void __exit cy82c693_exit(void)
+{
+ pci_unregister_driver(&cy82c693_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for the CY82C693 PATA controller");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, cy82c693);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(cy82c693_init);
+module_exit(cy82c693_exit);
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c
new file mode 100644
index 0000000..c30bc18
--- /dev/null
+++ b/drivers/ata/pata_efar.c
@@ -0,0 +1,342 @@
+/*
+ * pata_efar.c - EFAR PIIX clone controller driver
+ *
+ * (C) 2005 Red Hat <alan@redhat.com>
+ *
+ * Some parts based on ata_piix.c by Jeff Garzik and others.
+ *
+ * The EFAR is a PIIX4 clone with UDMA66 support. Unlike the later
+ * Intel ICH controllers the EFAR widened the UDMA mode register bits
+ * and doesn't require the funky clock selection.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_efar"
+#define DRV_VERSION "0.4.1"
+
+/**
+ * efar_pre_reset - check for 40/80 pin
+ * @ap: Port
+ *
+ * Perform cable detection for the EFAR ATA interface. This is
+ * different to the PIIX arrangement
+ */
+
+static int efar_pre_reset(struct ata_port *ap)
+{
+ static const struct pci_bits efar_enable_bits[] = {
+ { 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */
+ { 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 tmp;
+
+ if (!pci_test_config_bits(pdev, &efar_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ pci_read_config_byte(pdev, 0x47, &tmp);
+ if (tmp & (2 >> ap->port_no))
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * efar_probe_reset - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void efar_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, efar_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * efar_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set PIO mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void efar_set_piomode (struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio = adev->pio_mode - XFER_PIO_0;
+ struct pci_dev *dev = to_pci_dev(ap->host->dev);
+ unsigned int idetm_port= ap->port_no ? 0x42 : 0x40;
+ u16 idetm_data;
+ int control = 0;
+
+ /*
+ * See Intel Document 298600-004 for the timing programing rules
+ * for PIIX/ICH. The EFAR is a clone so very similar
+ */
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ if (pio > 2)
+ control |= 1; /* TIME1 enable */
+ if (ata_pio_need_iordy(adev)) /* PIO 3/4 require IORDY */
+ control |= 2; /* IE enable */
+ /* Intel specifies that the PPE functionality is for disk only */
+ if (adev->class == ATA_DEV_ATA)
+ control |= 4; /* PPE enable */
+
+ pci_read_config_word(dev, idetm_port, &idetm_data);
+
+ /* Enable PPE, IE and TIME as appropriate */
+
+ if (adev->devno == 0) {
+ idetm_data &= 0xCCF0;
+ idetm_data |= control;
+ idetm_data |= (timings[pio][0] << 12) |
+ (timings[pio][1] << 8);
+ } else {
+ int shift = 4 * ap->port_no;
+ u8 slave_data;
+
+ idetm_data &= 0xCC0F;
+ idetm_data |= (control << 4);
+
+ /* Slave timing in seperate register */
+ pci_read_config_byte(dev, 0x44, &slave_data);
+ slave_data &= 0x0F << shift;
+ slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << shift;
+ pci_write_config_byte(dev, 0x44, slave_data);
+ }
+
+ idetm_data |= 0x4000; /* Ensure SITRE is enabled */
+ pci_write_config_word(dev, idetm_port, idetm_data);
+}
+
+/**
+ * efar_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ *
+ * Set UDMA/MWDMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void efar_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *dev = to_pci_dev(ap->host->dev);
+ u8 master_port = ap->port_no ? 0x42 : 0x40;
+ u16 master_data;
+ u8 speed = adev->dma_mode;
+ int devid = adev->devno + 2 * ap->port_no;
+ u8 udma_enable;
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ pci_read_config_word(dev, master_port, &master_data);
+ pci_read_config_byte(dev, 0x48, &udma_enable);
+
+ if (speed >= XFER_UDMA_0) {
+ unsigned int udma = adev->dma_mode - XFER_UDMA_0;
+ u16 udma_timing;
+
+ udma_enable |= (1 << devid);
+
+ /* Load the UDMA mode number */
+ pci_read_config_word(dev, 0x4A, &udma_timing);
+ udma_timing &= ~(7 << (4 * devid));
+ udma_timing |= udma << (4 * devid);
+ pci_write_config_word(dev, 0x4A, udma_timing);
+ } else {
+ /*
+ * MWDMA is driven by the PIO timings. We must also enable
+ * IORDY unconditionally along with TIME1. PPE has already
+ * been set when the PIO timing was set.
+ */
+ unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
+ unsigned int control;
+ u8 slave_data;
+ const unsigned int needed_pio[3] = {
+ XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
+ };
+ int pio = needed_pio[mwdma] - XFER_PIO_0;
+
+ control = 3; /* IORDY|TIME1 */
+
+ /* If the drive MWDMA is faster than it can do PIO then
+ we must force PIO into PIO0 */
+
+ if (adev->pio_mode < needed_pio[mwdma])
+ /* Enable DMA timing only */
+ control |= 8; /* PIO cycles in PIO0 */
+
+ if (adev->devno) { /* Slave */
+ master_data &= 0xFF4F; /* Mask out IORDY|TIME1|DMAONLY */
+ master_data |= control << 4;
+ pci_read_config_byte(dev, 0x44, &slave_data);
+ slave_data &= (0x0F + 0xE1 * ap->port_no);
+ /* Load the matching timing */
+ slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
+ pci_write_config_byte(dev, 0x44, slave_data);
+ } else { /* Master */
+ master_data &= 0xCCF4; /* Mask out IORDY|TIME1|DMAONLY
+ and master timing bits */
+ master_data |= control;
+ master_data |=
+ (timings[pio][0] << 12) |
+ (timings[pio][1] << 8);
+ }
+ udma_enable &= ~(1 << devid);
+ pci_write_config_word(dev, master_port, master_data);
+ }
+ pci_write_config_byte(dev, 0x48, udma_enable);
+}
+
+static struct scsi_host_template efar_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static const struct ata_port_operations efar_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = efar_set_piomode,
+ .set_dmamode = efar_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = efar_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+
+/**
+ * efar_init_one - Register EFAR ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in efar_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int efar_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int printed_version;
+ static struct ata_port_info info = {
+ .sht = &efar_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma1-2 */
+ .udma_mask = 0x0f, /* UDMA 66 */
+ .port_ops = &efar_ops,
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "version " DRV_VERSION "\n");
+
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id efar_pci_tbl[] = {
+ { 0x1055, 0x9130, PCI_ANY_ID, PCI_ANY_ID, },
+ { } /* terminate list */
+};
+
+static struct pci_driver efar_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = efar_pci_tbl,
+ .probe = efar_init_one,
+ .remove = ata_pci_remove_one,
+};
+
+static int __init efar_init(void)
+{
+ return pci_register_driver(&efar_pci_driver);
+}
+
+static void __exit efar_exit(void)
+{
+ pci_unregister_driver(&efar_pci_driver);
+}
+
+
+module_init(efar_init);
+module_exit(efar_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for EFAR PIIX clones");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, efar_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
new file mode 100644
index 0000000..e54a0c5
--- /dev/null
+++ b/drivers/ata/pata_hpt366.c
@@ -0,0 +1,478 @@
+/*
+ * Libata driver for the highpoint 366 and 368 UDMA66 ATA controllers.
+ *
+ * This driver is heavily based upon:
+ *
+ * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
+ *
+ * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
+ * Portions Copyright (C) 2001 Sun Microsystems, Inc.
+ * Portions Copyright (C) 2003 Red Hat Inc
+ *
+ *
+ * TODO
+ * Maybe PLL mode
+ * Look into engine reset on timeout errors. Should not be
+ * required.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_hpt366"
+#define DRV_VERSION "0.5"
+
+struct hpt_clock {
+ u8 xfer_speed;
+ u32 timing;
+};
+
+/* key for bus clock timings
+ * bit
+ * 0:3 data_high_time. inactive time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 4:8 data_low_time. active time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 9:12 cmd_high_time. inactive time of DIOW_/DIOR_ during task file
+ * register access.
+ * 13:17 cmd_low_time. active time of DIOW_/DIOR_ during task file
+ * register access.
+ * 18:21 udma_cycle_time. clock freq and clock cycles for UDMA xfer.
+ * during task file register access.
+ * 22:24 pre_high_time. time to initialize 1st cycle for PIO and MW DMA
+ * xfer.
+ * 25:27 cmd_pre_high_time. time to initialize 1st PIO cycle for task
+ * register access.
+ * 28 UDMA enable
+ * 29 DMA enable
+ * 30 PIO_MST enable. if set, the chip is in bus master mode during
+ * PIO.
+ * 31 FIFO enable.
+ */
+
+static const struct hpt_clock hpt366_40[] = {
+ { XFER_UDMA_4, 0x900fd943 },
+ { XFER_UDMA_3, 0x900ad943 },
+ { XFER_UDMA_2, 0x900bd943 },
+ { XFER_UDMA_1, 0x9008d943 },
+ { XFER_UDMA_0, 0x9008d943 },
+
+ { XFER_MW_DMA_2, 0xa008d943 },
+ { XFER_MW_DMA_1, 0xa010d955 },
+ { XFER_MW_DMA_0, 0xa010d9fc },
+
+ { XFER_PIO_4, 0xc008d963 },
+ { XFER_PIO_3, 0xc010d974 },
+ { XFER_PIO_2, 0xc010d997 },
+ { XFER_PIO_1, 0xc010d9c7 },
+ { XFER_PIO_0, 0xc018d9d9 },
+ { 0, 0x0120d9d9 }
+};
+
+static const struct hpt_clock hpt366_33[] = {
+ { XFER_UDMA_4, 0x90c9a731 },
+ { XFER_UDMA_3, 0x90cfa731 },
+ { XFER_UDMA_2, 0x90caa731 },
+ { XFER_UDMA_1, 0x90cba731 },
+ { XFER_UDMA_0, 0x90c8a731 },
+
+ { XFER_MW_DMA_2, 0xa0c8a731 },
+ { XFER_MW_DMA_1, 0xa0c8a732 }, /* 0xa0c8a733 */
+ { XFER_MW_DMA_0, 0xa0c8a797 },
+
+ { XFER_PIO_4, 0xc0c8a731 },
+ { XFER_PIO_3, 0xc0c8a742 },
+ { XFER_PIO_2, 0xc0d0a753 },
+ { XFER_PIO_1, 0xc0d0a7a3 }, /* 0xc0d0a793 */
+ { XFER_PIO_0, 0xc0d0a7aa }, /* 0xc0d0a7a7 */
+ { 0, 0x0120a7a7 }
+};
+
+static const struct hpt_clock hpt366_25[] = {
+ { XFER_UDMA_4, 0x90c98521 },
+ { XFER_UDMA_3, 0x90cf8521 },
+ { XFER_UDMA_2, 0x90cf8521 },
+ { XFER_UDMA_1, 0x90cb8521 },
+ { XFER_UDMA_0, 0x90cb8521 },
+
+ { XFER_MW_DMA_2, 0xa0ca8521 },
+ { XFER_MW_DMA_1, 0xa0ca8532 },
+ { XFER_MW_DMA_0, 0xa0ca8575 },
+
+ { XFER_PIO_4, 0xc0ca8521 },
+ { XFER_PIO_3, 0xc0ca8532 },
+ { XFER_PIO_2, 0xc0ca8542 },
+ { XFER_PIO_1, 0xc0d08572 },
+ { XFER_PIO_0, 0xc0d08585 },
+ { 0, 0x01208585 }
+};
+
+static const char *bad_ata33[] = {
+ "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
+ "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
+ "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
+ "Maxtor 90510D4",
+ "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
+ "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
+ "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
+ NULL
+};
+
+static const char *bad_ata66_4[] = {
+ "IBM-DTLA-307075",
+ "IBM-DTLA-307060",
+ "IBM-DTLA-307045",
+ "IBM-DTLA-307030",
+ "IBM-DTLA-307020",
+ "IBM-DTLA-307015",
+ "IBM-DTLA-305040",
+ "IBM-DTLA-305030",
+ "IBM-DTLA-305020",
+ "IC35L010AVER07-0",
+ "IC35L020AVER07-0",
+ "IC35L030AVER07-0",
+ "IC35L040AVER07-0",
+ "IC35L060AVER07-0",
+ "WDC AC310200R",
+ NULL
+};
+
+static const char *bad_ata66_3[] = {
+ "WDC AC310200R",
+ NULL
+};
+
+static int hpt_dma_blacklisted(const struct ata_device *dev, char *modestr, const char *list[])
+{
+ unsigned char model_num[40];
+ char *s;
+ unsigned int len;
+ int i = 0;
+
+ ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num));
+ s = &model_num[0];
+ len = strnlen(s, sizeof(model_num));
+
+ /* ATAPI specifies that empty space is blank-filled; remove blanks */
+ while ((len > 0) && (s[len - 1] == ' ')) {
+ len--;
+ s[len] = 0;
+ }
+
+ while(list[i] != NULL) {
+ if (!strncmp(list[i], s, len)) {
+ printk(KERN_WARNING DRV_NAME ": %s is not supported for %s.\n",
+ modestr, list[i]);
+ return 1;
+ }
+ i++;
+ }
+ return 0;
+}
+
+/**
+ * hpt366_filter - mode selection filter
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Block UDMA on devices that cause trouble with this controller.
+ */
+
+static unsigned long hpt366_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
+{
+ if (adev->class == ATA_DEV_ATA) {
+ if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33))
+ mask &= ~ATA_MASK_UDMA;
+ if (hpt_dma_blacklisted(adev, "UDMA3", bad_ata66_3))
+ mask &= ~(0x07 << ATA_SHIFT_UDMA);
+ if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4))
+ mask &= ~(0x0F << ATA_SHIFT_UDMA);
+ }
+ return ata_pci_default_filter(ap, adev, mask);
+}
+
+/**
+ * hpt36x_find_mode - reset the hpt36x bus
+ * @ap: ATA port
+ * @speed: transfer mode
+ *
+ * Return the 32bit register programming information for this channel
+ * that matches the speed provided.
+ */
+
+static u32 hpt36x_find_mode(struct ata_port *ap, int speed)
+{
+ struct hpt_clock *clocks = ap->host->private_data;
+
+ while(clocks->xfer_speed) {
+ if (clocks->xfer_speed == speed)
+ return clocks->timing;
+ clocks++;
+ }
+ BUG();
+ return 0xffffffffU; /* silence compiler warning */
+}
+
+static int hpt36x_pre_reset(struct ata_port *ap)
+{
+ u8 ata66;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ pci_read_config_byte(pdev, 0x5A, &ata66);
+ if (ata66 & (1 << ap->port_no))
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * hpt36x_error_handler - reset the hpt36x bus
+ * @ap: ATA port to reset
+ *
+ * Perform the reset handling for the 366/368
+ */
+
+static void hpt36x_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, hpt36x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * hpt366_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Perform PIO mode setup.
+ */
+
+static void hpt366_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ if (fast & 0x80) {
+ fast &= ~0x80;
+ pci_write_config_byte(pdev, addr2, fast);
+ }
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt36x_find_mode(ap, adev->pio_mode);
+ mode &= ~0x8000000; /* No FIFO in PIO */
+ mode &= ~0x30070000; /* Leave config bits alone */
+ reg &= 0x30070000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+/**
+ * hpt366_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ * Set up the channel for MWDMA or UDMA modes. Much the same as with
+ * PIO, load the mode number and then set MWDMA or UDMA flag.
+ */
+
+static void hpt366_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ if (fast & 0x80) {
+ fast &= ~0x80;
+ pci_write_config_byte(pdev, addr2, fast);
+ }
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt36x_find_mode(ap, adev->dma_mode);
+ mode |= 0x8000000; /* FIFO in MWDMA or UDMA */
+ mode &= ~0xC0000000; /* Leave config bits alone */
+ reg &= 0xC0000000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+static struct scsi_host_template hpt36x_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+/*
+ * Configuration for HPT366/68
+ */
+
+static struct ata_port_operations hpt366_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = hpt366_set_piomode,
+ .set_dmamode = hpt366_set_dmamode,
+ .mode_filter = hpt366_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = hpt36x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * hpt36x_init_one - Initialise an HPT366/368
+ * @dev: PCI device
+ * @id: Entry in match table
+ *
+ * Initialise an HPT36x device. There are some interesting complications
+ * here. Firstly the chip may report 366 and be one of several variants.
+ * Secondly all the timings depend on the clock for the chip which we must
+ * detect and look up
+ *
+ * This is the known chip mappings. It may be missing a couple of later
+ * releases.
+ *
+ * Chip version PCI Rev Notes
+ * HPT366 4 (HPT366) 0 UDMA66
+ * HPT366 4 (HPT366) 1 UDMA66
+ * HPT368 4 (HPT366) 2 UDMA66
+ * HPT37x/30x 4 (HPT366) 3+ Other driver
+ *
+ */
+
+static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info_hpt366 = {
+ .sht = &hpt36x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f,
+ .port_ops = &hpt366_port_ops
+ };
+ struct ata_port_info *port_info[2] = {&info_hpt366, &info_hpt366};
+
+ u32 class_rev;
+ u32 reg1;
+ u8 drive_fast;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xFF;
+
+ /* May be a later chip in disguise. Check */
+ /* Newer chips are not in the HPT36x driver. Ignore them */
+ if (class_rev > 2)
+ return -ENODEV;
+
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
+ pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
+ pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
+
+ pci_read_config_byte(dev, 0x51, &drive_fast);
+ if (drive_fast & 0x80)
+ pci_write_config_byte(dev, 0x51, drive_fast & ~0x80);
+
+ pci_read_config_dword(dev, 0x40, ®1);
+
+ /* PCI clocking determines the ATA timing values to use */
+ /* info_hpt366 is safe against re-entry so we can scribble on it */
+ switch(reg1 & 0x700) {
+ case 5:
+ info_hpt366.private_data = &hpt366_40;
+ break;
+ case 9:
+ info_hpt366.private_data = &hpt366_25;
+ break;
+ default:
+ info_hpt366.private_data = &hpt366_33;
+ break;
+ }
+ /* Now kick off ATA set up */
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id hpt36x[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT366), },
+ { 0, },
+};
+
+static struct pci_driver hpt36x_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = hpt36x,
+ .probe = hpt36x_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init hpt36x_init(void)
+{
+ return pci_register_driver(&hpt36x_pci_driver);
+}
+
+
+static void __exit hpt36x_exit(void)
+{
+ pci_unregister_driver(&hpt36x_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for the Highpoint HPT366/368");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, hpt36x);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(hpt36x_init);
+module_exit(hpt36x_exit);
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
new file mode 100644
index 0000000..7c3da53
--- /dev/null
+++ b/drivers/ata/pata_hpt37x.c
@@ -0,0 +1,1257 @@
+/*
+ * Libata driver for the highpoint 37x and 30x UDMA66 ATA controllers.
+ *
+ * This driver is heavily based upon:
+ *
+ * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
+ *
+ * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
+ * Portions Copyright (C) 2001 Sun Microsystems, Inc.
+ * Portions Copyright (C) 2003 Red Hat Inc
+ *
+ * TODO
+ * PLL mode
+ * Look into engine reset on timeout errors. Should not be
+ * required.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_hpt37x"
+#define DRV_VERSION "0.5"
+
+struct hpt_clock {
+ u8 xfer_speed;
+ u32 timing;
+};
+
+struct hpt_chip {
+ const char *name;
+ unsigned int base;
+ struct hpt_clock const *clocks[4];
+};
+
+/* key for bus clock timings
+ * bit
+ * 0:3 data_high_time. inactive time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 4:8 data_low_time. active time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 9:12 cmd_high_time. inactive time of DIOW_/DIOR_ during task file
+ * register access.
+ * 13:17 cmd_low_time. active time of DIOW_/DIOR_ during task file
+ * register access.
+ * 18:21 udma_cycle_time. clock freq and clock cycles for UDMA xfer.
+ * during task file register access.
+ * 22:24 pre_high_time. time to initialize 1st cycle for PIO and MW DMA
+ * xfer.
+ * 25:27 cmd_pre_high_time. time to initialize 1st PIO cycle for task
+ * register access.
+ * 28 UDMA enable
+ * 29 DMA enable
+ * 30 PIO_MST enable. if set, the chip is in bus master mode during
+ * PIO.
+ * 31 FIFO enable.
+ */
+
+/* from highpoint documentation. these are old values */
+static const struct hpt_clock hpt370_timings_33[] = {
+/* { XFER_UDMA_5, 0x1A85F442, 0x16454e31 }, */
+ { XFER_UDMA_5, 0x16454e31 },
+ { XFER_UDMA_4, 0x16454e31 },
+ { XFER_UDMA_3, 0x166d4e31 },
+ { XFER_UDMA_2, 0x16494e31 },
+ { XFER_UDMA_1, 0x164d4e31 },
+ { XFER_UDMA_0, 0x16514e31 },
+
+ { XFER_MW_DMA_2, 0x26514e21 },
+ { XFER_MW_DMA_1, 0x26514e33 },
+ { XFER_MW_DMA_0, 0x26514e97 },
+
+ { XFER_PIO_4, 0x06514e21 },
+ { XFER_PIO_3, 0x06514e22 },
+ { XFER_PIO_2, 0x06514e33 },
+ { XFER_PIO_1, 0x06914e43 },
+ { XFER_PIO_0, 0x06914e57 },
+ { 0, 0x06514e57 }
+};
+
+static const struct hpt_clock hpt370_timings_66[] = {
+ { XFER_UDMA_5, 0x14846231 },
+ { XFER_UDMA_4, 0x14886231 },
+ { XFER_UDMA_3, 0x148c6231 },
+ { XFER_UDMA_2, 0x148c6231 },
+ { XFER_UDMA_1, 0x14906231 },
+ { XFER_UDMA_0, 0x14986231 },
+
+ { XFER_MW_DMA_2, 0x26514e21 },
+ { XFER_MW_DMA_1, 0x26514e33 },
+ { XFER_MW_DMA_0, 0x26514e97 },
+
+ { XFER_PIO_4, 0x06514e21 },
+ { XFER_PIO_3, 0x06514e22 },
+ { XFER_PIO_2, 0x06514e33 },
+ { XFER_PIO_1, 0x06914e43 },
+ { XFER_PIO_0, 0x06914e57 },
+ { 0, 0x06514e57 }
+};
+
+/* these are the current (4 sep 2001) timings from highpoint */
+static const struct hpt_clock hpt370a_timings_33[] = {
+ { XFER_UDMA_5, 0x12446231 },
+ { XFER_UDMA_4, 0x12446231 },
+ { XFER_UDMA_3, 0x126c6231 },
+ { XFER_UDMA_2, 0x12486231 },
+ { XFER_UDMA_1, 0x124c6233 },
+ { XFER_UDMA_0, 0x12506297 },
+
+ { XFER_MW_DMA_2, 0x22406c31 },
+ { XFER_MW_DMA_1, 0x22406c33 },
+ { XFER_MW_DMA_0, 0x22406c97 },
+
+ { XFER_PIO_4, 0x06414e31 },
+ { XFER_PIO_3, 0x06414e42 },
+ { XFER_PIO_2, 0x06414e53 },
+ { XFER_PIO_1, 0x06814e93 },
+ { XFER_PIO_0, 0x06814ea7 },
+ { 0, 0x06814ea7 }
+};
+
+/* 2x 33MHz timings */
+static const struct hpt_clock hpt370a_timings_66[] = {
+ { XFER_UDMA_5, 0x1488e673 },
+ { XFER_UDMA_4, 0x1488e673 },
+ { XFER_UDMA_3, 0x1498e673 },
+ { XFER_UDMA_2, 0x1490e673 },
+ { XFER_UDMA_1, 0x1498e677 },
+ { XFER_UDMA_0, 0x14a0e73f },
+
+ { XFER_MW_DMA_2, 0x2480fa73 },
+ { XFER_MW_DMA_1, 0x2480fa77 },
+ { XFER_MW_DMA_0, 0x2480fb3f },
+
+ { XFER_PIO_4, 0x0c82be73 },
+ { XFER_PIO_3, 0x0c82be95 },
+ { XFER_PIO_2, 0x0c82beb7 },
+ { XFER_PIO_1, 0x0d02bf37 },
+ { XFER_PIO_0, 0x0d02bf5f },
+ { 0, 0x0d02bf5f }
+};
+
+static const struct hpt_clock hpt370a_timings_50[] = {
+ { XFER_UDMA_5, 0x12848242 },
+ { XFER_UDMA_4, 0x12ac8242 },
+ { XFER_UDMA_3, 0x128c8242 },
+ { XFER_UDMA_2, 0x120c8242 },
+ { XFER_UDMA_1, 0x12148254 },
+ { XFER_UDMA_0, 0x121882ea },
+
+ { XFER_MW_DMA_2, 0x22808242 },
+ { XFER_MW_DMA_1, 0x22808254 },
+ { XFER_MW_DMA_0, 0x228082ea },
+
+ { XFER_PIO_4, 0x0a81f442 },
+ { XFER_PIO_3, 0x0a81f443 },
+ { XFER_PIO_2, 0x0a81f454 },
+ { XFER_PIO_1, 0x0ac1f465 },
+ { XFER_PIO_0, 0x0ac1f48a },
+ { 0, 0x0ac1f48a }
+};
+
+static const struct hpt_clock hpt372_timings_33[] = {
+ { XFER_UDMA_6, 0x1c81dc62 },
+ { XFER_UDMA_5, 0x1c6ddc62 },
+ { XFER_UDMA_4, 0x1c8ddc62 },
+ { XFER_UDMA_3, 0x1c8edc62 }, /* checkme */
+ { XFER_UDMA_2, 0x1c91dc62 },
+ { XFER_UDMA_1, 0x1c9adc62 }, /* checkme */
+ { XFER_UDMA_0, 0x1c82dc62 }, /* checkme */
+
+ { XFER_MW_DMA_2, 0x2c829262 },
+ { XFER_MW_DMA_1, 0x2c829266 }, /* checkme */
+ { XFER_MW_DMA_0, 0x2c82922e }, /* checkme */
+
+ { XFER_PIO_4, 0x0c829c62 },
+ { XFER_PIO_3, 0x0c829c84 },
+ { XFER_PIO_2, 0x0c829ca6 },
+ { XFER_PIO_1, 0x0d029d26 },
+ { XFER_PIO_0, 0x0d029d5e },
+ { 0, 0x0d029d5e }
+};
+
+static const struct hpt_clock hpt372_timings_50[] = {
+ { XFER_UDMA_5, 0x12848242 },
+ { XFER_UDMA_4, 0x12ac8242 },
+ { XFER_UDMA_3, 0x128c8242 },
+ { XFER_UDMA_2, 0x120c8242 },
+ { XFER_UDMA_1, 0x12148254 },
+ { XFER_UDMA_0, 0x121882ea },
+
+ { XFER_MW_DMA_2, 0x22808242 },
+ { XFER_MW_DMA_1, 0x22808254 },
+ { XFER_MW_DMA_0, 0x228082ea },
+
+ { XFER_PIO_4, 0x0a81f442 },
+ { XFER_PIO_3, 0x0a81f443 },
+ { XFER_PIO_2, 0x0a81f454 },
+ { XFER_PIO_1, 0x0ac1f465 },
+ { XFER_PIO_0, 0x0ac1f48a },
+ { 0, 0x0a81f443 }
+};
+
+static const struct hpt_clock hpt372_timings_66[] = {
+ { XFER_UDMA_6, 0x1c869c62 },
+ { XFER_UDMA_5, 0x1cae9c62 },
+ { XFER_UDMA_4, 0x1c8a9c62 },
+ { XFER_UDMA_3, 0x1c8e9c62 },
+ { XFER_UDMA_2, 0x1c929c62 },
+ { XFER_UDMA_1, 0x1c9a9c62 },
+ { XFER_UDMA_0, 0x1c829c62 },
+
+ { XFER_MW_DMA_2, 0x2c829c62 },
+ { XFER_MW_DMA_1, 0x2c829c66 },
+ { XFER_MW_DMA_0, 0x2c829d2e },
+
+ { XFER_PIO_4, 0x0c829c62 },
+ { XFER_PIO_3, 0x0c829c84 },
+ { XFER_PIO_2, 0x0c829ca6 },
+ { XFER_PIO_1, 0x0d029d26 },
+ { XFER_PIO_0, 0x0d029d5e },
+ { 0, 0x0d029d26 }
+};
+
+static const struct hpt_clock hpt374_timings_33[] = {
+ { XFER_UDMA_6, 0x12808242 },
+ { XFER_UDMA_5, 0x12848242 },
+ { XFER_UDMA_4, 0x12ac8242 },
+ { XFER_UDMA_3, 0x128c8242 },
+ { XFER_UDMA_2, 0x120c8242 },
+ { XFER_UDMA_1, 0x12148254 },
+ { XFER_UDMA_0, 0x121882ea },
+
+ { XFER_MW_DMA_2, 0x22808242 },
+ { XFER_MW_DMA_1, 0x22808254 },
+ { XFER_MW_DMA_0, 0x228082ea },
+
+ { XFER_PIO_4, 0x0a81f442 },
+ { XFER_PIO_3, 0x0a81f443 },
+ { XFER_PIO_2, 0x0a81f454 },
+ { XFER_PIO_1, 0x0ac1f465 },
+ { XFER_PIO_0, 0x0ac1f48a },
+ { 0, 0x06814e93 }
+};
+
+static const struct hpt_chip hpt370 = {
+ "HPT370",
+ 48,
+ {
+ hpt370_timings_33,
+ NULL,
+ NULL,
+ hpt370_timings_66
+ }
+};
+
+static const struct hpt_chip hpt370a = {
+ "HPT370A",
+ 48,
+ {
+ hpt370a_timings_33,
+ NULL,
+ hpt370a_timings_50,
+ hpt370a_timings_66
+ }
+};
+
+static const struct hpt_chip hpt372 = {
+ "HPT372",
+ 55,
+ {
+ hpt372_timings_33,
+ NULL,
+ hpt372_timings_50,
+ hpt372_timings_66
+ }
+};
+
+static const struct hpt_chip hpt302 = {
+ "HPT302",
+ 66,
+ {
+ hpt372_timings_33,
+ NULL,
+ hpt372_timings_50,
+ hpt372_timings_66
+ }
+};
+
+static const struct hpt_chip hpt371 = {
+ "HPT371",
+ 66,
+ {
+ hpt372_timings_33,
+ NULL,
+ hpt372_timings_50,
+ hpt372_timings_66
+ }
+};
+
+static const struct hpt_chip hpt372a = {
+ "HPT372A",
+ 66,
+ {
+ hpt372_timings_33,
+ NULL,
+ hpt372_timings_50,
+ hpt372_timings_66
+ }
+};
+
+static const struct hpt_chip hpt374 = {
+ "HPT374",
+ 48,
+ {
+ hpt374_timings_33,
+ NULL,
+ NULL,
+ NULL
+ }
+};
+
+/**
+ * hpt37x_find_mode - reset the hpt37x bus
+ * @ap: ATA port
+ * @speed: transfer mode
+ *
+ * Return the 32bit register programming information for this channel
+ * that matches the speed provided.
+ */
+
+static u32 hpt37x_find_mode(struct ata_port *ap, int speed)
+{
+ struct hpt_clock *clocks = ap->host->private_data;
+
+ while(clocks->xfer_speed) {
+ if (clocks->xfer_speed == speed)
+ return clocks->timing;
+ clocks++;
+ }
+ BUG();
+ return 0xffffffffU; /* silence compiler warning */
+}
+
+static int hpt_dma_blacklisted(const struct ata_device *dev, char *modestr, const char *list[])
+{
+ unsigned char model_num[40];
+ char *s;
+ unsigned int len;
+ int i = 0;
+
+ ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS,
+ sizeof(model_num));
+ s = &model_num[0];
+ len = strnlen(s, sizeof(model_num));
+
+ /* ATAPI specifies that empty space is blank-filled; remove blanks */
+ while ((len > 0) && (s[len - 1] == ' ')) {
+ len--;
+ s[len] = 0;
+ }
+
+ while(list[i] != NULL) {
+ if (!strncmp(list[i], s, len)) {
+ printk(KERN_WARNING DRV_NAME ": %s is not supported for %s.\n",
+ modestr, list[i]);
+ return 1;
+ }
+ i++;
+ }
+ return 0;
+}
+
+static const char *bad_ata33[] = {
+ "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
+ "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
+ "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
+ "Maxtor 90510D4",
+ "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
+ "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
+ "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
+ NULL
+};
+
+static const char *bad_ata100_5[] = {
+ "IBM-DTLA-307075",
+ "IBM-DTLA-307060",
+ "IBM-DTLA-307045",
+ "IBM-DTLA-307030",
+ "IBM-DTLA-307020",
+ "IBM-DTLA-307015",
+ "IBM-DTLA-305040",
+ "IBM-DTLA-305030",
+ "IBM-DTLA-305020",
+ "IC35L010AVER07-0",
+ "IC35L020AVER07-0",
+ "IC35L030AVER07-0",
+ "IC35L040AVER07-0",
+ "IC35L060AVER07-0",
+ "WDC AC310200R",
+ NULL
+};
+
+/**
+ * hpt370_filter - mode selection filter
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Block UDMA on devices that cause trouble with this controller.
+ */
+
+static unsigned long hpt370_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
+{
+ if (adev->class != ATA_DEV_ATA) {
+ if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33))
+ mask &= ~ATA_MASK_UDMA;
+ if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5))
+ mask &= ~(0x1F << ATA_SHIFT_UDMA);
+ }
+ return ata_pci_default_filter(ap, adev, mask);
+}
+
+/**
+ * hpt370a_filter - mode selection filter
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Block UDMA on devices that cause trouble with this controller.
+ */
+
+static unsigned long hpt370a_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
+{
+ if (adev->class != ATA_DEV_ATA) {
+ if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5))
+ mask &= ~ (0x1F << ATA_SHIFT_UDMA);
+ }
+ return ata_pci_default_filter(ap, adev, mask);
+}
+
+/**
+ * hpt37x_pre_reset - reset the hpt37x bus
+ * @ap: ATA port to reset
+ *
+ * Perform the initial reset handling for the 370/372 and 374 func 0
+ */
+
+static int hpt37x_pre_reset(struct ata_port *ap)
+{
+ u8 scr2, ata66;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ pci_read_config_byte(pdev, 0x5B, &scr2);
+ pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01);
+ /* Cable register now active */
+ pci_read_config_byte(pdev, 0x5A, &ata66);
+ /* Restore state */
+ pci_write_config_byte(pdev, 0x5B, scr2);
+
+ if (ata66 & (1 << ap->port_no))
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+
+ /* Reset the state machine */
+ pci_write_config_byte(pdev, 0x50, 0x37);
+ pci_write_config_byte(pdev, 0x54, 0x37);
+ udelay(100);
+
+ return ata_std_prereset(ap);
+}
+
+/**
+ * hpt37x_error_handler - reset the hpt374
+ * @ap: ATA port to reset
+ *
+ * Perform probe for HPT37x, except for HPT374 channel 2
+ */
+
+static void hpt37x_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, hpt37x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+static int hpt374_pre_reset(struct ata_port *ap)
+{
+ u16 mcr3, mcr6;
+ u8 ata66;
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ /* Do the extra channel work */
+ pci_read_config_word(pdev, 0x52, &mcr3);
+ pci_read_config_word(pdev, 0x56, &mcr6);
+ /* Set bit 15 of 0x52 to enable TCBLID as input
+ Set bit 15 of 0x56 to enable FCBLID as input
+ */
+ pci_write_config_word(pdev, 0x52, mcr3 | 0x8000);
+ pci_write_config_word(pdev, 0x56, mcr6 | 0x8000);
+ pci_read_config_byte(pdev, 0x5A, &ata66);
+ /* Reset TCBLID/FCBLID to output */
+ pci_write_config_word(pdev, 0x52, mcr3);
+ pci_write_config_word(pdev, 0x56, mcr6);
+
+ if (ata66 & (1 << ap->port_no))
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+
+ /* Reset the state machine */
+ pci_write_config_byte(pdev, 0x50, 0x37);
+ pci_write_config_byte(pdev, 0x54, 0x37);
+ udelay(100);
+
+ return ata_std_prereset(ap);
+}
+
+/**
+ * hpt374_error_handler - reset the hpt374
+ * @classes:
+ *
+ * The 374 cable detect is a little different due to the extra
+ * channels. The function 0 channels work like usual but function 1
+ * is special
+ */
+
+static void hpt374_error_handler(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (!(PCI_FUNC(pdev->devfn) & 1))
+ hpt37x_error_handler(ap);
+ else
+ ata_bmdma_drive_eh(ap, hpt374_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * hpt370_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Perform PIO mode setup.
+ */
+
+static void hpt370_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ fast &= ~0x02;
+ fast |= 0x01;
+ pci_write_config_byte(pdev, addr2, fast);
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt37x_find_mode(ap, adev->pio_mode);
+ mode &= ~0x8000000; /* No FIFO in PIO */
+ mode &= ~0x30070000; /* Leave config bits alone */
+ reg &= 0x30070000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+/**
+ * hpt370_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ * Set up the channel for MWDMA or UDMA modes. Much the same as with
+ * PIO, load the mode number and then set MWDMA or UDMA flag.
+ */
+
+static void hpt370_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ fast &= ~0x02;
+ fast |= 0x01;
+ pci_write_config_byte(pdev, addr2, fast);
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt37x_find_mode(ap, adev->dma_mode);
+ mode |= 0x8000000; /* FIFO in MWDMA or UDMA */
+ mode &= ~0xC0000000; /* Leave config bits alone */
+ reg &= 0xC0000000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+/**
+ * hpt370_bmdma_start - DMA engine begin
+ * @qc: ATA command
+ *
+ * The 370 and 370A want us to reset the DMA engine each time we
+ * use it. The 372 and later are fine.
+ */
+
+static void hpt370_bmdma_start(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);
+ udelay(10);
+ ata_bmdma_start(qc);
+}
+
+/**
+ * hpt370_bmdma_end - DMA engine stop
+ * @qc: ATA command
+ *
+ * Work around the HPT370 DMA engine.
+ */
+
+static void hpt370_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 dma_stat = inb(ap->ioaddr.bmdma_addr + 2);
+ u8 dma_cmd;
+ unsigned long bmdma = ap->ioaddr.bmdma_addr;
+
+ if (dma_stat & 0x01) {
+ udelay(20);
+ dma_stat = inb(bmdma + 2);
+ }
+ if (dma_stat & 0x01) {
+ /* Clear the engine */
+ pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);
+ udelay(10);
+ /* Stop DMA */
+ dma_cmd = inb(bmdma );
+ outb(dma_cmd & 0xFE, bmdma);
+ /* Clear Error */
+ dma_stat = inb(bmdma + 2);
+ outb(dma_stat | 0x06 , bmdma + 2);
+ /* Clear the engine */
+ pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);
+ udelay(10);
+ }
+ ata_bmdma_stop(qc);
+}
+
+/**
+ * hpt372_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Perform PIO mode setup.
+ */
+
+static void hpt372_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ fast &= ~0x07;
+ pci_write_config_byte(pdev, addr2, fast);
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt37x_find_mode(ap, adev->pio_mode);
+
+ printk("Find mode for %d reports %X\n", adev->pio_mode, mode);
+ mode &= ~0x80000000; /* No FIFO in PIO */
+ mode &= ~0x30070000; /* Leave config bits alone */
+ reg &= 0x30070000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+/**
+ * hpt372_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ * Set up the channel for MWDMA or UDMA modes. Much the same as with
+ * PIO, load the mode number and then set MWDMA or UDMA flag.
+ */
+
+static void hpt372_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ fast &= ~0x07;
+ pci_write_config_byte(pdev, addr2, fast);
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt37x_find_mode(ap, adev->dma_mode);
+ printk("Find mode for DMA %d reports %X\n", adev->dma_mode, mode);
+ mode &= ~0xC0000000; /* Leave config bits alone */
+ mode |= 0x80000000; /* FIFO in MWDMA or UDMA */
+ reg &= 0xC0000000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+/**
+ * hpt37x_bmdma_end - DMA engine stop
+ * @qc: ATA command
+ *
+ * Clean up after the HPT372 and later DMA engine
+ */
+
+static void hpt37x_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int mscreg = 0x50 + 2 * ap->port_no;
+ u8 bwsr_stat, msc_stat;
+
+ pci_read_config_byte(pdev, 0x6A, &bwsr_stat);
+ pci_read_config_byte(pdev, mscreg, &msc_stat);
+ if (bwsr_stat & (1 << ap->port_no))
+ pci_write_config_byte(pdev, mscreg, msc_stat | 0x30);
+ ata_bmdma_stop(qc);
+}
+
+
+static struct scsi_host_template hpt37x_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+/*
+ * Configuration for HPT370
+ */
+
+static struct ata_port_operations hpt370_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = hpt370_set_piomode,
+ .set_dmamode = hpt370_set_dmamode,
+ .mode_filter = hpt370_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = hpt37x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = hpt370_bmdma_start,
+ .bmdma_stop = hpt370_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Configuration for HPT370A. Close to 370 but less filters
+ */
+
+static struct ata_port_operations hpt370a_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = hpt370_set_piomode,
+ .set_dmamode = hpt370_set_dmamode,
+ .mode_filter = hpt370a_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = hpt37x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = hpt370_bmdma_start,
+ .bmdma_stop = hpt370_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Configuration for HPT372, HPT371, HPT302. Slightly different PIO
+ * and DMA mode setting functionality.
+ */
+
+static struct ata_port_operations hpt372_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = hpt372_set_piomode,
+ .set_dmamode = hpt372_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = hpt37x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = hpt37x_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Configuration for HPT374. Mode setting works like 372 and friends
+ * but we have a different cable detection procedure.
+ */
+
+static struct ata_port_operations hpt374_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = hpt372_set_piomode,
+ .set_dmamode = hpt372_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = hpt374_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = hpt37x_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * htp37x_clock_slot - Turn timing to PC clock entry
+ * @freq: Reported frequency timing
+ * @base: Base timing
+ *
+ * Turn the timing data intoa clock slot (0 for 33, 1 for 40, 2 for 50
+ * and 3 for 66Mhz)
+ */
+
+static int hpt37x_clock_slot(unsigned int freq, unsigned int base)
+{
+ unsigned int f = (base * freq) / 192; /* Mhz */
+ if (f < 40)
+ return 0; /* 33Mhz slot */
+ if (f < 45)
+ return 1; /* 40Mhz slot */
+ if (f < 55)
+ return 2; /* 50Mhz slot */
+ return 3; /* 60Mhz slot */
+}
+
+/**
+ * hpt37x_calibrate_dpll - Calibrate the DPLL loop
+ * @dev: PCI device
+ *
+ * Perform a calibration cycle on the HPT37x DPLL. Returns 1 if this
+ * succeeds
+ */
+
+static int hpt37x_calibrate_dpll(struct pci_dev *dev)
+{
+ u8 reg5b;
+ u32 reg5c;
+ int tries;
+
+ for(tries = 0; tries < 0x5000; tries++) {
+ udelay(50);
+ pci_read_config_byte(dev, 0x5b, ®5b);
+ if (reg5b & 0x80) {
+ /* See if it stays set */
+ for(tries = 0; tries < 0x1000; tries ++) {
+ pci_read_config_byte(dev, 0x5b, ®5b);
+ /* Failed ? */
+ if ((reg5b & 0x80) == 0)
+ return 0;
+ }
+ /* Turn off tuning, we have the DPLL set */
+ pci_read_config_dword(dev, 0x5c, ®5c);
+ pci_write_config_dword(dev, 0x5c, reg5c & ~ 0x100);
+ return 1;
+ }
+ }
+ /* Never went stable */
+ return 0;
+}
+/**
+ * hpt37x_init_one - Initialise an HPT37X/302
+ * @dev: PCI device
+ * @id: Entry in match table
+ *
+ * Initialise an HPT37x device. There are some interesting complications
+ * here. Firstly the chip may report 366 and be one of several variants.
+ * Secondly all the timings depend on the clock for the chip which we must
+ * detect and look up
+ *
+ * This is the known chip mappings. It may be missing a couple of later
+ * releases.
+ *
+ * Chip version PCI Rev Notes
+ * HPT366 4 (HPT366) 0 Other driver
+ * HPT366 4 (HPT366) 1 Other driver
+ * HPT368 4 (HPT366) 2 Other driver
+ * HPT370 4 (HPT366) 3 UDMA100
+ * HPT370A 4 (HPT366) 4 UDMA100
+ * HPT372 4 (HPT366) 5 UDMA133 (1)
+ * HPT372N 4 (HPT366) 6 Other driver
+ * HPT372A 5 (HPT372) 1 UDMA133 (1)
+ * HPT372N 5 (HPT372) 2 Other driver
+ * HPT302 6 (HPT302) 1 UDMA133
+ * HPT302N 6 (HPT302) 2 Other driver
+ * HPT371 7 (HPT371) * UDMA133
+ * HPT374 8 (HPT374) * UDMA133 4 channel
+ * HPT372N 9 (HPT372N) * Other driver
+ *
+ * (1) UDMA133 support depends on the bus clock
+ */
+
+static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ /* HPT370 - UDMA100 */
+ static struct ata_port_info info_hpt370 = {
+ .sht = &hpt37x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &hpt370_port_ops
+ };
+ /* HPT370A - UDMA100 */
+ static struct ata_port_info info_hpt370a = {
+ .sht = &hpt37x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &hpt370a_port_ops
+ };
+ /* HPT371, 372 and friends - UDMA133 */
+ static struct ata_port_info info_hpt372 = {
+ .sht = &hpt37x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f,
+ .port_ops = &hpt372_port_ops
+ };
+ /* HPT371, 372 and friends - UDMA100 at 50MHz clock */
+ static struct ata_port_info info_hpt372_50 = {
+ .sht = &hpt37x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &hpt372_port_ops
+ };
+ /* HPT374 - UDMA133 */
+ static struct ata_port_info info_hpt374 = {
+ .sht = &hpt37x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f,
+ .port_ops = &hpt374_port_ops
+ };
+
+ static const int MHz[4] = { 33, 40, 50, 66 };
+
+ struct ata_port_info *port_info[2];
+ struct ata_port_info *port;
+
+ u8 irqmask;
+ u32 class_rev;
+ u32 freq;
+
+ const struct hpt_chip *chip_table;
+ int clock_slot;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xFF;
+
+ if (dev->device == PCI_DEVICE_ID_TTI_HPT366) {
+ /* May be a later chip in disguise. Check */
+ /* Older chips are in the HPT366 driver. Ignore them */
+ if (class_rev < 3)
+ return -ENODEV;
+ /* N series chips have their own driver. Ignore */
+ if (class_rev == 6)
+ return -ENODEV;
+
+ switch(class_rev) {
+ case 3:
+ port = &info_hpt370;
+ chip_table = &hpt370;
+ break;
+ case 4:
+ port = &info_hpt370a;
+ chip_table = &hpt370a;
+ break;
+ case 5:
+ port = &info_hpt372;
+ chip_table = &hpt372;
+ break;
+ default:
+ printk(KERN_ERR "pata_hpt37x: Unknown HPT366 subtype please report (%d).\n", class_rev);
+ return -ENODEV;
+ }
+ } else {
+ switch(dev->device) {
+ case PCI_DEVICE_ID_TTI_HPT372:
+ /* 372N if rev >= 2*/
+ if (class_rev >= 2)
+ return -ENODEV;
+ port = &info_hpt372;
+ chip_table = &hpt372a;
+ break;
+ case PCI_DEVICE_ID_TTI_HPT302:
+ /* 302N if rev > 1 */
+ if (class_rev > 1)
+ return -ENODEV;
+ port = &info_hpt372;
+ /* Check this */
+ chip_table = &hpt302;
+ break;
+ case PCI_DEVICE_ID_TTI_HPT371:
+ port = &info_hpt372;
+ chip_table = &hpt371;
+ break;
+ case PCI_DEVICE_ID_TTI_HPT374:
+ chip_table = &hpt374;
+ port = &info_hpt374;
+ break;
+ default:
+ printk(KERN_ERR "pata_hpt37x: PCI table is bogus please report (%d).\n", dev->device);
+ return -ENODEV;
+ }
+ }
+ /* Ok so this is a chip we support */
+
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
+ pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
+ pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
+
+ pci_read_config_byte(dev, 0x5A, &irqmask);
+ irqmask &= ~0x10;
+ pci_write_config_byte(dev, 0x5a, irqmask);
+
+ /*
+ * default to pci clock. make sure MA15/16 are set to output
+ * to prevent drives having problems with 40-pin cables. Needed
+ * for some drives such as IBM-DTLA which will not enter ready
+ * state on reset when PDIAG is a input.
+ */
+
+ pci_write_config_byte(dev, 0x5b, 0x23);
+
+ pci_read_config_dword(dev, 0x70, &freq);
+ if ((freq >> 12) != 0xABCDE) {
+ int i;
+ u8 sr;
+ u32 total = 0;
+
+ printk(KERN_WARNING "pata_hpt37x: BIOS has not set timing clocks.\n");
+
+ /* This is the process the HPT371 BIOS is reported to use */
+ for(i = 0; i < 128; i++) {
+ pci_read_config_byte(dev, 0x78, &sr);
+ total += sr;
+ udelay(15);
+ }
+ freq = total / 128;
+ }
+ freq &= 0x1FF;
+
+ /*
+ * Turn the frequency check into a band and then find a timing
+ * table to match it.
+ */
+
+ clock_slot = hpt37x_clock_slot(freq, chip_table->base);
+ if (chip_table->clocks[clock_slot] == NULL) {
+ /*
+ * We need to try PLL mode instead
+ */
+ unsigned int f_low = (MHz[clock_slot] * chip_table->base) / 192;
+ unsigned int f_high = f_low + 2;
+ int adjust;
+
+ for(adjust = 0; adjust < 8; adjust++) {
+ if (hpt37x_calibrate_dpll(dev))
+ break;
+ /* See if it'll settle at a fractionally different clock */
+ if ((adjust & 3) == 3) {
+ f_low --;
+ f_high ++;
+ }
+ pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low);
+ }
+ if (adjust == 8) {
+ printk(KERN_WARNING "hpt37x: DPLL did not stabilize.\n");
+ return -ENODEV;
+ }
+ /* Check if this works for all cases */
+ port->private_data = (void *)hpt370_timings_66;
+
+ printk(KERN_INFO "hpt37x: Bus clock %dMHz, using DPLL.\n", MHz[clock_slot]);
+ } else {
+ port->private_data = (void *)chip_table->clocks[clock_slot];
+ /*
+ * Perform a final fixup. The 371 and 372 clock determines
+ * if UDMA133 is available.
+ */
+
+ if (clock_slot == 2 && chip_table == &hpt372) { /* 50Mhz */
+ printk(KERN_WARNING "pata_hpt37x: No UDMA133 support available with 50MHz bus clock.\n");
+ if (port == &info_hpt372)
+ port = &info_hpt372_50;
+ else BUG();
+ }
+ printk(KERN_INFO "hpt37x: %s: Bus clock %dMHz.\n", chip_table->name, MHz[clock_slot]);
+ }
+ port_info[0] = port_info[1] = port;
+ /* Now kick off ATA set up */
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id hpt37x[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT366), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT371), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT374), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT302), },
+ { 0, },
+};
+
+static struct pci_driver hpt37x_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = hpt37x,
+ .probe = hpt37x_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init hpt37x_init(void)
+{
+ return pci_register_driver(&hpt37x_pci_driver);
+}
+
+
+static void __exit hpt37x_exit(void)
+{
+ pci_unregister_driver(&hpt37x_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for the Highpoint HPT37x/30x");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, hpt37x);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(hpt37x_init);
+module_exit(hpt37x_exit);
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
new file mode 100644
index 0000000..40fcda6
--- /dev/null
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -0,0 +1,597 @@
+/*
+ * Libata driver for the highpoint 372N and 302N UDMA66 ATA controllers.
+ *
+ * This driver is heavily based upon:
+ *
+ * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
+ *
+ * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
+ * Portions Copyright (C) 2001 Sun Microsystems, Inc.
+ * Portions Copyright (C) 2003 Red Hat Inc
+ *
+ *
+ * TODO
+ * 371N
+ * Work out best PLL policy
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_hpt3x2n"
+#define DRV_VERSION "0.3"
+
+enum {
+ HPT_PCI_FAST = (1 << 31),
+ PCI66 = (1 << 1),
+ USE_DPLL = (1 << 0)
+};
+
+struct hpt_clock {
+ u8 xfer_speed;
+ u32 timing;
+};
+
+struct hpt_chip {
+ const char *name;
+ struct hpt_clock *clocks[3];
+};
+
+/* key for bus clock timings
+ * bit
+ * 0:3 data_high_time. inactive time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 4:8 data_low_time. active time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 9:12 cmd_high_time. inactive time of DIOW_/DIOR_ during task file
+ * register access.
+ * 13:17 cmd_low_time. active time of DIOW_/DIOR_ during task file
+ * register access.
+ * 18:21 udma_cycle_time. clock freq and clock cycles for UDMA xfer.
+ * during task file register access.
+ * 22:24 pre_high_time. time to initialize 1st cycle for PIO and MW DMA
+ * xfer.
+ * 25:27 cmd_pre_high_time. time to initialize 1st PIO cycle for task
+ * register access.
+ * 28 UDMA enable
+ * 29 DMA enable
+ * 30 PIO_MST enable. if set, the chip is in bus master mode during
+ * PIO.
+ * 31 FIFO enable.
+ */
+
+/* 66MHz DPLL clocks */
+
+static struct hpt_clock hpt3x2n_clocks[] = {
+ { XFER_UDMA_7, 0x1c869c62 },
+ { XFER_UDMA_6, 0x1c869c62 },
+ { XFER_UDMA_5, 0x1c8a9c62 },
+ { XFER_UDMA_4, 0x1c8a9c62 },
+ { XFER_UDMA_3, 0x1c8e9c62 },
+ { XFER_UDMA_2, 0x1c929c62 },
+ { XFER_UDMA_1, 0x1c9a9c62 },
+ { XFER_UDMA_0, 0x1c829c62 },
+
+ { XFER_MW_DMA_2, 0x2c829c62 },
+ { XFER_MW_DMA_1, 0x2c829c66 },
+ { XFER_MW_DMA_0, 0x2c829d2c },
+
+ { XFER_PIO_4, 0x0c829c62 },
+ { XFER_PIO_3, 0x0c829c84 },
+ { XFER_PIO_2, 0x0c829ca6 },
+ { XFER_PIO_1, 0x0d029d26 },
+ { XFER_PIO_0, 0x0d029d5e },
+ { 0, 0x0d029d5e }
+};
+
+/**
+ * hpt3x2n_find_mode - reset the hpt3x2n bus
+ * @ap: ATA port
+ * @speed: transfer mode
+ *
+ * Return the 32bit register programming information for this channel
+ * that matches the speed provided. For the moment the clocks table
+ * is hard coded but easy to change. This will be needed if we use
+ * different DPLLs
+ */
+
+static u32 hpt3x2n_find_mode(struct ata_port *ap, int speed)
+{
+ struct hpt_clock *clocks = hpt3x2n_clocks;
+
+ while(clocks->xfer_speed) {
+ if (clocks->xfer_speed == speed)
+ return clocks->timing;
+ clocks++;
+ }
+ BUG();
+ return 0xffffffffU; /* silence compiler warning */
+}
+
+/**
+ * hpt3x2n_pre_reset - reset the hpt3x2n bus
+ * @ap: ATA port to reset
+ *
+ * Perform the initial reset handling for the 3x2n series controllers.
+ * Reset the hardware and state machine, obtain the cable type.
+ */
+
+static int hpt3xn_pre_reset(struct ata_port *ap)
+{
+ u8 scr2, ata66;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ pci_read_config_byte(pdev, 0x5B, &scr2);
+ pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01);
+ /* Cable register now active */
+ pci_read_config_byte(pdev, 0x5A, &ata66);
+ /* Restore state */
+ pci_write_config_byte(pdev, 0x5B, scr2);
+
+ if (ata66 & (1 << ap->port_no))
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+
+ /* Reset the state machine */
+ pci_write_config_byte(pdev, 0x50, 0x37);
+ pci_write_config_byte(pdev, 0x54, 0x37);
+ udelay(100);
+
+ return ata_std_prereset(ap);
+}
+
+/**
+ * hpt3x2n_error_handler - probe the hpt3x2n bus
+ * @ap: ATA port to reset
+ *
+ * Perform the probe reset handling for the 3x2N
+ */
+
+static void hpt3x2n_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, hpt3xn_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * hpt3x2n_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Perform PIO mode setup.
+ */
+
+static void hpt3x2n_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ fast &= ~0x07;
+ pci_write_config_byte(pdev, addr2, fast);
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt3x2n_find_mode(ap, adev->pio_mode);
+ mode &= ~0x8000000; /* No FIFO in PIO */
+ mode &= ~0x30070000; /* Leave config bits alone */
+ reg &= 0x30070000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+/**
+ * hpt3x2n_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ * Set up the channel for MWDMA or UDMA modes. Much the same as with
+ * PIO, load the mode number and then set MWDMA or UDMA flag.
+ */
+
+static void hpt3x2n_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 addr1, addr2;
+ u32 reg;
+ u32 mode;
+ u8 fast;
+
+ addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
+ addr2 = 0x51 + 4 * ap->port_no;
+
+ /* Fast interrupt prediction disable, hold off interrupt disable */
+ pci_read_config_byte(pdev, addr2, &fast);
+ fast &= ~0x07;
+ pci_write_config_byte(pdev, addr2, fast);
+
+ pci_read_config_dword(pdev, addr1, ®);
+ mode = hpt3x2n_find_mode(ap, adev->dma_mode);
+ mode |= 0x8000000; /* FIFO in MWDMA or UDMA */
+ mode &= ~0xC0000000; /* Leave config bits alone */
+ reg &= 0xC0000000; /* Strip timing bits */
+ pci_write_config_dword(pdev, addr1, reg | mode);
+}
+
+/**
+ * hpt3x2n_bmdma_end - DMA engine stop
+ * @qc: ATA command
+ *
+ * Clean up after the HPT3x2n and later DMA engine
+ */
+
+static void hpt3x2n_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int mscreg = 0x50 + 2 * ap->port_no;
+ u8 bwsr_stat, msc_stat;
+
+ pci_read_config_byte(pdev, 0x6A, &bwsr_stat);
+ pci_read_config_byte(pdev, mscreg, &msc_stat);
+ if (bwsr_stat & (1 << ap->port_no))
+ pci_write_config_byte(pdev, mscreg, msc_stat | 0x30);
+ ata_bmdma_stop(qc);
+}
+
+/**
+ * hpt3x2n_set_clock - clock control
+ * @ap: ATA port
+ * @source: 0x21 or 0x23 for PLL or PCI sourced clock
+ *
+ * Switch the ATA bus clock between the PLL and PCI clock sources
+ * while correctly isolating the bus and resetting internal logic
+ *
+ * We must use the DPLL for
+ * - writing
+ * - second channel UDMA7 (SATA ports) or higher
+ * - 66MHz PCI
+ *
+ * or we will underclock the device and get reduced performance.
+ */
+
+static void hpt3x2n_set_clock(struct ata_port *ap, int source)
+{
+ unsigned long bmdma = ap->ioaddr.bmdma_addr;
+
+ /* Tristate the bus */
+ outb(0x80, bmdma+0x73);
+ outb(0x80, bmdma+0x77);
+
+ /* Switch clock and reset channels */
+ outb(source, bmdma+0x7B);
+ outb(0xC0, bmdma+0x79);
+
+ /* Reset state machines */
+ outb(0x37, bmdma+0x70);
+ outb(0x37, bmdma+0x74);
+
+ /* Complete reset */
+ outb(0x00, bmdma+0x79);
+
+ /* Reconnect channels to bus */
+ outb(0x00, bmdma+0x73);
+ outb(0x00, bmdma+0x77);
+}
+
+/* Check if our partner interface is busy */
+
+static int hpt3x2n_pair_idle(struct ata_port *ap)
+{
+ struct ata_host *host = ap->host;
+ struct ata_port *pair = host->ports[ap->port_no ^ 1];
+
+ if (pair->hsm_task_state == HSM_ST_IDLE)
+ return 1;
+ return 0;
+}
+
+static int hpt3x2n_use_dpll(struct ata_port *ap, int reading)
+{
+ long flags = (long)ap->host->private_data;
+ /* See if we should use the DPLL */
+ if (reading == 0)
+ return USE_DPLL; /* Needed for write */
+ if (flags & PCI66)
+ return USE_DPLL; /* Needed at 66Mhz */
+ return 0;
+}
+
+static unsigned int hpt3x2n_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_taskfile *tf = &qc->tf;
+ struct ata_port *ap = qc->ap;
+ int flags = (long)ap->host->private_data;
+
+ if (hpt3x2n_pair_idle(ap)) {
+ int dpll = hpt3x2n_use_dpll(ap, (tf->flags & ATA_TFLAG_WRITE));
+ if ((flags & USE_DPLL) != dpll) {
+ if (dpll == 1)
+ hpt3x2n_set_clock(ap, 0x21);
+ else
+ hpt3x2n_set_clock(ap, 0x23);
+ }
+ }
+ return ata_qc_issue_prot(qc);
+}
+
+static struct scsi_host_template hpt3x2n_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+/*
+ * Configuration for HPT3x2n.
+ */
+
+static struct ata_port_operations hpt3x2n_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = hpt3x2n_set_piomode,
+ .set_dmamode = hpt3x2n_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = hpt3x2n_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = hpt3x2n_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = hpt3x2n_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * hpt3xn_calibrate_dpll - Calibrate the DPLL loop
+ * @dev: PCI device
+ *
+ * Perform a calibration cycle on the HPT3xN DPLL. Returns 1 if this
+ * succeeds
+ */
+
+static int hpt3xn_calibrate_dpll(struct pci_dev *dev)
+{
+ u8 reg5b;
+ u32 reg5c;
+ int tries;
+
+ for(tries = 0; tries < 0x5000; tries++) {
+ udelay(50);
+ pci_read_config_byte(dev, 0x5b, ®5b);
+ if (reg5b & 0x80) {
+ /* See if it stays set */
+ for(tries = 0; tries < 0x1000; tries ++) {
+ pci_read_config_byte(dev, 0x5b, ®5b);
+ /* Failed ? */
+ if ((reg5b & 0x80) == 0)
+ return 0;
+ }
+ /* Turn off tuning, we have the DPLL set */
+ pci_read_config_dword(dev, 0x5c, ®5c);
+ pci_write_config_dword(dev, 0x5c, reg5c & ~ 0x100);
+ return 1;
+ }
+ }
+ /* Never went stable */
+ return 0;
+}
+
+static int hpt3x2n_pci_clock(struct pci_dev *pdev)
+{
+ unsigned long freq;
+ u32 fcnt;
+
+ pci_read_config_dword(pdev, 0x70/*CHECKME*/, &fcnt);
+ if ((fcnt >> 12) != 0xABCDE) {
+ printk(KERN_WARNING "hpt3xn: BIOS clock data not set.\n");
+ return 33; /* Not BIOS set */
+ }
+ fcnt &= 0x1FF;
+
+ freq = (fcnt * 77) / 192;
+
+ /* Clamp to bands */
+ if (freq < 40)
+ return 33;
+ if (freq < 45)
+ return 40;
+ if (freq < 55)
+ return 50;
+ return 66;
+}
+
+/**
+ * hpt3x2n_init_one - Initialise an HPT37X/302
+ * @dev: PCI device
+ * @id: Entry in match table
+ *
+ * Initialise an HPT3x2n device. There are some interesting complications
+ * here. Firstly the chip may report 366 and be one of several variants.
+ * Secondly all the timings depend on the clock for the chip which we must
+ * detect and look up
+ *
+ * This is the known chip mappings. It may be missing a couple of later
+ * releases.
+ *
+ * Chip version PCI Rev Notes
+ * HPT372 4 (HPT366) 5 Other driver
+ * HPT372N 4 (HPT366) 6 UDMA133
+ * HPT372 5 (HPT372) 1 Other driver
+ * HPT372N 5 (HPT372) 2 UDMA133
+ * HPT302 6 (HPT302) * Other driver
+ * HPT302N 6 (HPT302) > 1 UDMA133
+ * HPT371 7 (HPT371) * Other driver
+ * HPT371N 7 (HPT371) > 1 UDMA133
+ * HPT374 8 (HPT374) * Other driver
+ * HPT372N 9 (HPT372N) * UDMA133
+ *
+ * (1) UDMA133 support depends on the bus clock
+ *
+ * To pin down HPT371N
+ */
+
+static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ /* HPT372N and friends - UDMA133 */
+ static struct ata_port_info info = {
+ .sht = &hpt3x2n_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f,
+ .port_ops = &hpt3x2n_port_ops
+ };
+ struct ata_port_info *port_info[2];
+ struct ata_port_info *port = &info;
+
+ u8 irqmask;
+ u32 class_rev;
+
+ unsigned int pci_mhz;
+ unsigned int f_low, f_high;
+ int adjust;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xFF;
+
+ switch(dev->device) {
+ case PCI_DEVICE_ID_TTI_HPT366:
+ if (class_rev < 6)
+ return -ENODEV;
+ break;
+ case PCI_DEVICE_ID_TTI_HPT372:
+ /* 372N if rev >= 1*/
+ if (class_rev == 0)
+ return -ENODEV;
+ break;
+ case PCI_DEVICE_ID_TTI_HPT302:
+ if (class_rev < 2)
+ return -ENODEV;
+ break;
+ case PCI_DEVICE_ID_TTI_HPT372N:
+ break;
+ default:
+ printk(KERN_ERR "pata_hpt3x2n: PCI table is bogus please report (%d).\n", dev->device);
+ return -ENODEV;
+ }
+
+ /* Ok so this is a chip we support */
+
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
+ pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
+ pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
+
+ pci_read_config_byte(dev, 0x5A, &irqmask);
+ irqmask &= ~0x10;
+ pci_write_config_byte(dev, 0x5a, irqmask);
+
+ /* Tune the PLL. HPT recommend using 75 for SATA, 66 for UDMA133 or
+ 50 for UDMA100. Right now we always use 66 */
+
+ pci_mhz = hpt3x2n_pci_clock(dev);
+
+ f_low = (pci_mhz * 48) / 66; /* PCI Mhz for 66Mhz DPLL */
+ f_high = f_low + 2; /* Tolerance */
+
+ pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low | 0x100);
+ /* PLL clock */
+ pci_write_config_byte(dev, 0x5B, 0x21);
+
+ /* Unlike the 37x we don't try jiggling the frequency */
+ for(adjust = 0; adjust < 8; adjust++) {
+ if (hpt3xn_calibrate_dpll(dev))
+ break;
+ pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low);
+ }
+ if (adjust == 8)
+ printk(KERN_WARNING "hpt3xn: DPLL did not stabilize.\n");
+
+ /* Set our private data up. We only need a few flags so we use
+ it directly */
+ port->private_data = NULL;
+ if (pci_mhz > 60)
+ port->private_data = (void *)PCI66;
+
+ /* Now kick off ATA set up */
+ port_info[0] = port_info[1] = port;
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id hpt3x2n[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT366), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT302), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372N), },
+ { 0, },
+};
+
+static struct pci_driver hpt3x2n_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = hpt3x2n,
+ .probe = hpt3x2n_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init hpt3x2n_init(void)
+{
+ return pci_register_driver(&hpt3x2n_pci_driver);
+}
+
+
+static void __exit hpt3x2n_exit(void)
+{
+ pci_unregister_driver(&hpt3x2n_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for the Highpoint HPT3x2n/30x");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, hpt3x2n);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(hpt3x2n_init);
+module_exit(hpt3x2n_exit);
diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c
new file mode 100644
index 0000000..c93406e
--- /dev/null
+++ b/drivers/ata/pata_hpt3x3.c
@@ -0,0 +1,226 @@
+/*
+ * pata_hpt3x3 - HPT3x3 driver
+ * (c) Copyright 2005-2006 Red Hat
+ *
+ * Was pata_hpt34x but the naming was confusing as it supported the
+ * 343 and 363 so it has been renamed.
+ *
+ * Based on:
+ * linux/drivers/ide/pci/hpt34x.c Version 0.40 Sept 10, 2002
+ * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_hpt3x3"
+#define DRV_VERSION "0.4.1"
+
+static int hpt3x3_probe_init(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * hpt3x3_probe_reset - reset the hpt3x3 bus
+ * @ap: ATA port to reset
+ *
+ * Perform the housekeeping when doing an ATA bus reeset. We just
+ * need to force the cable type.
+ */
+
+static void hpt3x3_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, hpt3x3_probe_init, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * hpt3x3_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Set our PIO requirements. This is fairly simple on the HPT3x3 as
+ * all we have to do is clear the MWDMA and UDMA bits then load the
+ * mode number.
+ */
+
+static void hpt3x3_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 r1, r2;
+ int dn = 2 * ap->port_no + adev->devno;
+
+ pci_read_config_dword(pdev, 0x44, &r1);
+ pci_read_config_dword(pdev, 0x48, &r2);
+ /* Load the PIO timing number */
+ r1 &= ~(7 << (3 * dn));
+ r1 |= (adev->pio_mode - XFER_PIO_0) << (3 * dn);
+ r2 &= ~(0x11 << dn); /* Clear MWDMA and UDMA bits */
+
+ pci_write_config_dword(pdev, 0x44, r1);
+ pci_write_config_dword(pdev, 0x48, r2);
+}
+
+/**
+ * hpt3x3_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ * Set up the channel for MWDMA or UDMA modes. Much the same as with
+ * PIO, load the mode number and then set MWDMA or UDMA flag.
+ */
+
+static void hpt3x3_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 r1, r2;
+ int dn = 2 * ap->port_no + adev->devno;
+ int mode_num = adev->dma_mode & 0x0F;
+
+ pci_read_config_dword(pdev, 0x44, &r1);
+ pci_read_config_dword(pdev, 0x48, &r2);
+ /* Load the timing number */
+ r1 &= ~(7 << (3 * dn));
+ r1 |= (mode_num << (3 * dn));
+ r2 &= ~(0x11 << dn); /* Clear MWDMA and UDMA bits */
+
+ if (adev->dma_mode >= XFER_UDMA_0)
+ r2 |= 0x01 << dn; /* Ultra mode */
+ else
+ r2 |= 0x10 << dn; /* MWDMA */
+
+ pci_write_config_dword(pdev, 0x44, r1);
+ pci_write_config_dword(pdev, 0x48, r2);
+}
+
+static struct scsi_host_template hpt3x3_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations hpt3x3_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = hpt3x3_set_piomode,
+ .set_dmamode = hpt3x3_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = hpt3x3_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * hpt3x3_init_one - Initialise an HPT343/363
+ * @dev: PCI device
+ * @id: Entry in match table
+ *
+ * Perform basic initialisation. The chip has a quirk that it won't
+ * function unless it is at XX00. The old ATA driver touched this up
+ * but we leave it for pci quirks to do properly.
+ */
+
+static int hpt3x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &hpt3x3_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x07,
+ .port_ops = &hpt3x3_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+ u16 cmd;
+
+ /* Initialize the board */
+ pci_write_config_word(dev, 0x80, 0x00);
+ /* Check if it is a 343 or a 363. 363 has COMMAND_MEMORY set */
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ if (cmd & PCI_COMMAND_MEMORY)
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
+ else
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
+
+ /* Now kick off ATA set up */
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id hpt3x3[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT343), },
+ { 0, },
+};
+
+static struct pci_driver hpt3x3_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = hpt3x3,
+ .probe = hpt3x3_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init hpt3x3_init(void)
+{
+ return pci_register_driver(&hpt3x3_pci_driver);
+}
+
+
+static void __exit hpt3x3_exit(void)
+{
+ pci_unregister_driver(&hpt3x3_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for the Highpoint HPT343/363");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, hpt3x3);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(hpt3x3_init);
+module_exit(hpt3x3_exit);
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
new file mode 100644
index 0000000..73948c8
--- /dev/null
+++ b/drivers/ata/pata_isapnp.c
@@ -0,0 +1,156 @@
+
+/*
+ * pata-isapnp.c - ISA PnP PATA controller driver.
+ * Copyright 2005/2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ *
+ * Based in part on ide-pnp.c by Andrey Panin <pazke@donpac.ru>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/isapnp.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/ata.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_isapnp"
+#define DRV_VERSION "0.1.5"
+
+static struct scsi_host_template isapnp_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations isapnp_port_ops = {
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ata_bmdma_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * isapnp_init_one - attach an isapnp interface
+ * @idev: PnP device
+ * @dev_id: matching detect line
+ *
+ * Register an ISA bus IDE interface. Such interfaces are PIO 0 and
+ * non shared IRQ.
+ */
+
+static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev_id)
+{
+ struct ata_probe_ent ae;
+
+ if (pnp_port_valid(idev, 0) == 0)
+ return -ENODEV;
+
+ /* FIXME: Should selected polled PIO here not fail */
+ if (pnp_irq_valid(idev, 0) == 0)
+ return -ENODEV;
+
+ memset(&ae, 0, sizeof(struct ata_probe_ent));
+ INIT_LIST_HEAD(&ae.node);
+ ae.dev = &idev->dev;
+ ae.port_ops = &isapnp_port_ops;
+ ae.sht = &isapnp_sht;
+ ae.n_ports = 1;
+ ae.pio_mask = 1; /* ISA so PIO 0 cycles */
+ ae.irq = pnp_irq(idev, 0);
+ ae.irq_flags = 0;
+ ae.port_flags = ATA_FLAG_SLAVE_POSS;
+ ae.port[0].cmd_addr = pnp_port_start(idev, 0);
+
+ if (pnp_port_valid(idev, 1) == 0) {
+ ae.port[0].altstatus_addr = pnp_port_start(idev, 1);
+ ae.port[0].ctl_addr = pnp_port_start(idev, 1);
+ ae.port_flags |= ATA_FLAG_SRST;
+ }
+ ata_std_ports(&ae.port[0]);
+
+ if (ata_device_add(&ae) == 0)
+ return -ENODEV;
+ return 0;
+}
+
+/**
+ * isapnp_remove_one - unplug an isapnp interface
+ * @idev: PnP device
+ *
+ * Remove a previously configured PnP ATA port. Called only on module
+ * unload events as the core does not currently deal with ISAPnP docking.
+ */
+
+static void isapnp_remove_one(struct pnp_dev *idev)
+{
+ struct device *dev = &idev->dev;
+ struct ata_host *host = dev_get_drvdata(dev);
+
+ ata_host_remove(host);
+ dev_set_drvdata(dev, NULL);
+}
+
+static struct pnp_device_id isapnp_devices[] = {
+ /* Generic ESDI/IDE/ATA compatible hard disk controller */
+ {.id = "PNP0600", .driver_data = 0},
+ {.id = ""}
+};
+
+static struct pnp_driver isapnp_driver = {
+ .name = DRV_NAME,
+ .id_table = isapnp_devices,
+ .probe = isapnp_init_one,
+ .remove = isapnp_remove_one,
+};
+
+static int __init isapnp_init(void)
+{
+ return pnp_register_driver(&isapnp_driver);
+}
+
+static void __exit isapnp_exit(void)
+{
+ pnp_unregister_driver(&isapnp_driver);
+}
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for ISA PnP ATA");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(isapnp_init);
+module_exit(isapnp_exit);
diff --git a/drivers/ata/pata_it8172.c b/drivers/ata/pata_it8172.c
new file mode 100644
index 0000000..f836719
--- /dev/null
+++ b/drivers/ata/pata_it8172.c
@@ -0,0 +1,288 @@
+/*
+ * pata_it8172.c - IT8172 PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based heavily on
+ *
+ * BRIEF MODULE DESCRIPTION
+ * IT8172 IDE controller support
+ *
+ * Copyright 2000 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * stevel@mvista.com or source@mvista.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * TODO
+ * Check for errata
+ * See if we really need to force native mode
+ * PIO timings (also lacking in original)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_it8172"
+#define DRV_VERSION "0.3.1"
+
+static int it8172_pre_reset(struct ata_port *ap)
+{
+ static const struct pci_bits it8172_enable_bits[] = {
+ { 0x00, 0, 0x00, 0x00 },
+ { 0x40, 1, 0x00, 0x01 }
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (ap->port_no && !pci_test_config_bits(pdev, &it8172_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+static void it8172_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, it8172_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * it8172_set_pio_timing - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called by both the pio and dma setup functions to set the controller
+ * timings for PIO transfers. We must load both the mode number and
+ * timing values into the controller.
+ */
+
+static void it8172_set_pio_timing(struct ata_port *ap, struct ata_device *adev, int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u16 reg40;
+
+ pci_read_config_word(pdev, 0x40, ®40);
+
+ /*
+ * FIX! The DIOR/DIOW pulse width and recovery times in port 0x44
+ * are being left at the default values of 8 PCI clocks (242 nsec
+ * for a 33 MHz clock). These can be safely shortened at higher
+ * PIO modes. The DIOR/DIOW pulse width and recovery times only
+ * apply to PIO modes, not to the DMA modes.
+ */
+
+ /*
+ * Enable port 0x44. The IT8172G spec is confused; it calls
+ * this register the "Slave IDE Timing Register", but in fact,
+ * it controls timing for both master and slave drives.
+ */
+
+ reg40 |= 0x4000;
+ if (adev->devno) {
+ reg40 &= 0xC006;
+ if (pio > 1)
+ /* Enable prefetch and IORDY sample-point */
+ reg40 |= 0x0060;
+ } else {
+ reg40 &= 0xC060;
+ if (pio > 1)
+ /* Enable prefetch and IORDY sample-point */
+ reg40 |= 0x0006;
+ }
+ /* Write back the enables */
+ pci_write_config_word(pdev, 0x40, reg40);
+}
+
+/**
+ * it8172_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup. We use a shared helper for this
+ * as the DMA setup must also adjust the PIO timing information.
+ */
+
+static void it8172_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ it8172_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0);
+}
+
+/**
+ * it8172_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the DMA mode setup. We must tune an appropriate PIO
+ * mode to match.
+ */
+
+static void it8172_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = (2 * ap->port_no) + adev->devno;
+ u8 reg48, reg4a;
+ int pio;
+
+ static const int pio_map[] = { 1, 3, 4};
+ /*
+ * Setting the DMA cycle time to 2 or 3 PCI clocks (60 and 91 nsec
+ * at 33 MHz PCI clock) seems to cause BadCRC errors during DMA
+ * transfers on some drives, even though both numbers meet the minimum
+ * ATAPI-4 spec of 73 and 54 nsec for UDMA 1 and 2 respectively.
+ * So the faster times are just commented out here. The good news is
+ * that the slower cycle time has very little affect on transfer
+ * performance.
+ */
+
+ pci_read_config_byte(pdev, 0x48, ®48);
+ pci_read_config_byte(pdev, 0x4A, ®4a);
+
+ reg4a &= ~(3 << (4 * dn));
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ reg48 |= 1 << dn;
+#ifdef UDMA_TIMING_SET
+ reg4a |= ((adev->dma_mode - XFER_UDMA_0) << (4 * dn));
+#endif
+ pio = 4;
+ } else {
+ pio = pio_map[adev->dma_mode - XFER_MW_DMA_0];
+ reg48 &= ~ (1 << dn);
+ }
+ pci_write_config_byte(pdev, 0x48, reg48);
+ pci_write_config_byte(pdev, 0x4A, reg4a);
+ it8172_set_pio_timing(ap, adev, pio);
+
+}
+
+static struct scsi_host_template it8172_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations it8172_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = it8172_set_piomode,
+ .set_dmamode = it8172_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = it8172_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int it8172_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &it8172_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x06, /* No MWDMA0 support */
+ .udma_mask = 0x7,
+ .port_ops = &it8172_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ if ((!(PCI_FUNC(dev->devfn) & 1) ||
+ (!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE))))
+ return -ENODEV; /* IT8172 is more than an IDE controller */
+
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id it8172[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G), },
+ { 0, },
+};
+
+static struct pci_driver it8172_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = it8172,
+ .probe = it8172_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init it8172_init(void)
+{
+ return pci_register_driver(&it8172_pci_driver);
+}
+
+
+static void __exit it8172_exit(void)
+{
+ pci_unregister_driver(&it8172_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for ITE IT8172");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, it8172);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(it8172_init);
+module_exit(it8172_exit);
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
new file mode 100644
index 0000000..c8a7798
--- /dev/null
+++ b/drivers/ata/pata_it821x.c
@@ -0,0 +1,847 @@
+/*
+ * ata-it821x.c - IT821x PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * based upon
+ *
+ * it821x.c
+ *
+ * linux/drivers/ide/pci/it821x.c Version 0.09 December 2004
+ *
+ * Copyright (C) 2004 Red Hat <alan@redhat.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public License
+ * Based in part on the ITE vendor provided SCSI driver.
+ *
+ * Documentation available from
+ * http://www.ite.com.tw/pc/IT8212F_V04.pdf
+ * Some other documents are NDA.
+ *
+ * The ITE8212 isn't exactly a standard IDE controller. It has two
+ * modes. In pass through mode then it is an IDE controller. In its smart
+ * mode its actually quite a capable hardware raid controller disguised
+ * as an IDE controller. Smart mode only understands DMA read/write and
+ * identify, none of the fancier commands apply. The IT8211 is identical
+ * in other respects but lacks the raid mode.
+ *
+ * Errata:
+ * o Rev 0x10 also requires master/slave hold the same DMA timings and
+ * cannot do ATAPI MWDMA.
+ * o The identify data for raid volumes lacks CHS info (technically ok)
+ * but also fails to set the LBA28 and other bits. We fix these in
+ * the IDE probe quirk code.
+ * o If you write LBA48 sized I/O's (ie > 256 sector) in smart mode
+ * raid then the controller firmware dies
+ * o Smart mode without RAID doesn't clear all the necessary identify
+ * bits to reduce the command set to the one used
+ *
+ * This has a few impacts on the driver
+ * - In pass through mode we do all the work you would expect
+ * - In smart mode the clocking set up is done by the controller generally
+ * but we must watch the other limits and filter.
+ * - There are a few extra vendor commands that actually talk to the
+ * controller but only work PIO with no IRQ.
+ *
+ * Vendor areas of the identify block in smart mode are used for the
+ * timing and policy set up. Each HDD in raid mode also has a serial
+ * block on the disk. The hardware extra commands are get/set chip status,
+ * rebuild, get rebuild status.
+ *
+ * In Linux the driver supports pass through mode as if the device was
+ * just another IDE controller. If the smart mode is running then
+ * volumes are managed by the controller firmware and each IDE "disk"
+ * is a raid volume. Even more cute - the controller can do automated
+ * hotplug and rebuild.
+ *
+ * The pass through controller itself is a little demented. It has a
+ * flaw that it has a single set of PIO/MWDMA timings per channel so
+ * non UDMA devices restrict each others performance. It also has a
+ * single clock source per channel so mixed UDMA100/133 performance
+ * isn't perfect and we have to pick a clock. Thankfully none of this
+ * matters in smart mode. ATAPI DMA is not currently supported.
+ *
+ * It seems the smart mode is a win for RAID1/RAID10 but otherwise not.
+ *
+ * TODO
+ * - ATAPI and other speed filtering
+ * - Command filter in smart mode
+ * - RAID configuration ioctls
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+
+#define DRV_NAME "pata_it821x"
+#define DRV_VERSION "0.3.2"
+
+struct it821x_dev
+{
+ unsigned int smart:1, /* Are we in smart raid mode */
+ timing10:1; /* Rev 0x10 */
+ u8 clock_mode; /* 0, ATA_50 or ATA_66 */
+ u8 want[2][2]; /* Mode/Pri log for master slave */
+ /* We need these for switching the clock when DMA goes on/off
+ The high byte is the 66Mhz timing */
+ u16 pio[2]; /* Cached PIO values */
+ u16 mwdma[2]; /* Cached MWDMA values */
+ u16 udma[2]; /* Cached UDMA values (per drive) */
+ u16 last_device; /* Master or slave loaded ? */
+};
+
+#define ATA_66 0
+#define ATA_50 1
+#define ATA_ANY 2
+
+#define UDMA_OFF 0
+#define MWDMA_OFF 0
+
+/*
+ * We allow users to force the card into non raid mode without
+ * flashing the alternative BIOS. This is also neccessary right now
+ * for embedded platforms that cannot run a PC BIOS but are using this
+ * device.
+ */
+
+static int it8212_noraid;
+
+/**
+ * it821x_pre_reset - probe
+ * @ap: ATA port
+ *
+ * Set the cable type
+ */
+
+static int it821x_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * it821x_error_handler - probe/reset
+ * @ap: ATA port
+ *
+ * Set the cable type and trigger a probe
+ */
+
+static void it821x_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, it821x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * it821x_program - program the PIO/MWDMA registers
+ * @ap: ATA port
+ * @adev: Device to program
+ * @timing: Timing value (66Mhz in top 8bits, 50 in the low 8)
+ *
+ * Program the PIO/MWDMA timing for this channel according to the
+ * current clock. These share the same register so are managed by
+ * the DMA start/stop sequence as with the old driver.
+ */
+
+static void it821x_program(struct ata_port *ap, struct ata_device *adev, u16 timing)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct it821x_dev *itdev = ap->private_data;
+ int channel = ap->port_no;
+ u8 conf;
+
+ /* Program PIO/MWDMA timing bits */
+ if (itdev->clock_mode == ATA_66)
+ conf = timing >> 8;
+ else
+ conf = timing & 0xFF;
+ pci_write_config_byte(pdev, 0x54 + 4 * channel, conf);
+}
+
+
+/**
+ * it821x_program_udma - program the UDMA registers
+ * @ap: ATA port
+ * @adev: ATA device to update
+ * @timing: Timing bits. Top 8 are for 66Mhz bottom for 50Mhz
+ *
+ * Program the UDMA timing for this drive according to the
+ * current clock. Handles the dual clocks and also knows about
+ * the errata on the 0x10 revision. The UDMA errata is partly handled
+ * here and partly in start_dma.
+ */
+
+static void it821x_program_udma(struct ata_port *ap, struct ata_device *adev, u16 timing)
+{
+ struct it821x_dev *itdev = ap->private_data;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int channel = ap->port_no;
+ int unit = adev->devno;
+ u8 conf;
+
+ /* Program UDMA timing bits */
+ if (itdev->clock_mode == ATA_66)
+ conf = timing >> 8;
+ else
+ conf = timing & 0xFF;
+ if (itdev->timing10 == 0)
+ pci_write_config_byte(pdev, 0x56 + 4 * channel + unit, conf);
+ else {
+ /* Early revision must be programmed for both together */
+ pci_write_config_byte(pdev, 0x56 + 4 * channel, conf);
+ pci_write_config_byte(pdev, 0x56 + 4 * channel + 1, conf);
+ }
+}
+
+/**
+ * it821x_clock_strategy
+ * @ap: ATA interface
+ * @adev: ATA device being updated
+ *
+ * Select between the 50 and 66Mhz base clocks to get the best
+ * results for this interface.
+ */
+
+static void it821x_clock_strategy(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct it821x_dev *itdev = ap->private_data;
+ u8 unit = adev->devno;
+ struct ata_device *pair = ata_dev_pair(adev);
+
+ int clock, altclock;
+ u8 v;
+ int sel = 0;
+
+ /* Look for the most wanted clocking */
+ if (itdev->want[0][0] > itdev->want[1][0]) {
+ clock = itdev->want[0][1];
+ altclock = itdev->want[1][1];
+ } else {
+ clock = itdev->want[1][1];
+ altclock = itdev->want[0][1];
+ }
+
+ /* Master doesn't care does the slave ? */
+ if (clock == ATA_ANY)
+ clock = altclock;
+
+ /* Nobody cares - keep the same clock */
+ if (clock == ATA_ANY)
+ return;
+ /* No change */
+ if (clock == itdev->clock_mode)
+ return;
+
+ /* Load this into the controller */
+ if (clock == ATA_66)
+ itdev->clock_mode = ATA_66;
+ else {
+ itdev->clock_mode = ATA_50;
+ sel = 1;
+ }
+ pci_read_config_byte(pdev, 0x50, &v);
+ v &= ~(1 << (1 + ap->port_no));
+ v |= sel << (1 + ap->port_no);
+ pci_write_config_byte(pdev, 0x50, v);
+
+ /*
+ * Reprogram the UDMA/PIO of the pair drive for the switch
+ * MWDMA will be dealt with by the dma switcher
+ */
+ if (pair && itdev->udma[1-unit] != UDMA_OFF) {
+ it821x_program_udma(ap, pair, itdev->udma[1-unit]);
+ it821x_program(ap, pair, itdev->pio[1-unit]);
+ }
+ /*
+ * Reprogram the UDMA/PIO of our drive for the switch.
+ * MWDMA will be dealt with by the dma switcher
+ */
+ if (itdev->udma[unit] != UDMA_OFF) {
+ it821x_program_udma(ap, adev, itdev->udma[unit]);
+ it821x_program(ap, adev, itdev->pio[unit]);
+ }
+}
+
+/**
+ * it821x_passthru_set_piomode - set PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Configure for PIO mode. This is complicated as the register is
+ * shared by PIO and MWDMA and for both channels.
+ */
+
+static void it821x_passthru_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ /* Spec says 89 ref driver uses 88 */
+ static const u16 pio[] = { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 };
+ static const u8 pio_want[] = { ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY };
+
+ struct it821x_dev *itdev = ap->private_data;
+ int unit = adev->devno;
+ int mode_wanted = adev->pio_mode - XFER_PIO_0;
+
+ /* We prefer 66Mhz clock for PIO 0-3, don't care for PIO4 */
+ itdev->want[unit][1] = pio_want[mode_wanted];
+ itdev->want[unit][0] = 1; /* PIO is lowest priority */
+ itdev->pio[unit] = pio[mode_wanted];
+ it821x_clock_strategy(ap, adev);
+ it821x_program(ap, adev, itdev->pio[unit]);
+}
+
+/**
+ * it821x_passthru_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Set up the DMA modes. The actions taken depend heavily on the mode
+ * to use. If UDMA is used as is hopefully the usual case then the
+ * timing register is private and we need only consider the clock. If
+ * we are using MWDMA then we have to manage the setting ourself as
+ * we switch devices and mode.
+ */
+
+static void it821x_passthru_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u16 dma[] = { 0x8866, 0x3222, 0x3121 };
+ static const u8 mwdma_want[] = { ATA_ANY, ATA_66, ATA_ANY };
+ static const u16 udma[] = { 0x4433, 0x4231, 0x3121, 0x2121, 0x1111, 0x2211, 0x1111 };
+ static const u8 udma_want[] = { ATA_ANY, ATA_50, ATA_ANY, ATA_66, ATA_66, ATA_50, ATA_66 };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct it821x_dev *itdev = ap->private_data;
+ int channel = ap->port_no;
+ int unit = adev->devno;
+ u8 conf;
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ int mode_wanted = adev->dma_mode - XFER_UDMA_0;
+
+ itdev->want[unit][1] = udma_want[mode_wanted];
+ itdev->want[unit][0] = 3; /* UDMA is high priority */
+ itdev->mwdma[unit] = MWDMA_OFF;
+ itdev->udma[unit] = udma[mode_wanted];
+ if (mode_wanted >= 5)
+ itdev->udma[unit] |= 0x8080; /* UDMA 5/6 select on */
+
+ /* UDMA on. Again revision 0x10 must do the pair */
+ pci_read_config_byte(pdev, 0x50, &conf);
+ if (itdev->timing10)
+ conf &= channel ? 0x9F: 0xE7;
+ else
+ conf &= ~ (1 << (3 + 2 * channel + unit));
+ pci_write_config_byte(pdev, 0x50, conf);
+ it821x_clock_strategy(ap, adev);
+ it821x_program_udma(ap, adev, itdev->udma[unit]);
+ } else {
+ int mode_wanted = adev->dma_mode - XFER_MW_DMA_0;
+
+ itdev->want[unit][1] = mwdma_want[mode_wanted];
+ itdev->want[unit][0] = 2; /* MWDMA is low priority */
+ itdev->mwdma[unit] = dma[mode_wanted];
+ itdev->udma[unit] = UDMA_OFF;
+
+ /* UDMA bits off - Revision 0x10 do them in pairs */
+ pci_read_config_byte(pdev, 0x50, &conf);
+ if (itdev->timing10)
+ conf |= channel ? 0x60: 0x18;
+ else
+ conf |= 1 << (3 + 2 * channel + unit);
+ pci_write_config_byte(pdev, 0x50, conf);
+ it821x_clock_strategy(ap, adev);
+ }
+}
+
+/**
+ * it821x_passthru_dma_start - DMA start callback
+ * @qc: Command in progress
+ *
+ * Usually drivers set the DMA timing at the point the set_dmamode call
+ * is made. IT821x however requires we load new timings on the
+ * transitions in some cases.
+ */
+
+static void it821x_passthru_bmdma_start(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+ struct it821x_dev *itdev = ap->private_data;
+ int unit = adev->devno;
+
+ if (itdev->mwdma[unit] != MWDMA_OFF)
+ it821x_program(ap, adev, itdev->mwdma[unit]);
+ else if (itdev->udma[unit] != UDMA_OFF && itdev->timing10)
+ it821x_program_udma(ap, adev, itdev->udma[unit]);
+ ata_bmdma_start(qc);
+}
+
+/**
+ * it821x_passthru_dma_stop - DMA stop callback
+ * @qc: ATA command
+ *
+ * We loaded new timings in dma_start, as a result we need to restore
+ * the PIO timings in dma_stop so that the next command issue gets the
+ * right clock values.
+ */
+
+static void it821x_passthru_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+ struct it821x_dev *itdev = ap->private_data;
+ int unit = adev->devno;
+
+ ata_bmdma_stop(qc);
+ if (itdev->mwdma[unit] != MWDMA_OFF)
+ it821x_program(ap, adev, itdev->pio[unit]);
+}
+
+
+/**
+ * it821x_passthru_dev_select - Select master/slave
+ * @ap: ATA port
+ * @device: Device number (not pointer)
+ *
+ * Device selection hook. If neccessary perform clock switching
+ */
+
+static void it821x_passthru_dev_select(struct ata_port *ap,
+ unsigned int device)
+{
+ struct it821x_dev *itdev = ap->private_data;
+ if (itdev && device != itdev->last_device) {
+ struct ata_device *adev = &ap->device[device];
+ it821x_program(ap, adev, itdev->pio[adev->devno]);
+ itdev->last_device = device;
+ }
+ ata_std_dev_select(ap, device);
+}
+
+/**
+ * it821x_smart_qc_issue_prot - wrap qc issue prot
+ * @qc: command
+ *
+ * Wrap the command issue sequence for the IT821x. We need to
+ * perform out own device selection timing loads before the
+ * usual happenings kick off
+ */
+
+static unsigned int it821x_smart_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ switch(qc->tf.command)
+ {
+ /* Commands the firmware supports */
+ case ATA_CMD_READ:
+ case ATA_CMD_READ_EXT:
+ case ATA_CMD_WRITE:
+ case ATA_CMD_WRITE_EXT:
+ case ATA_CMD_PIO_READ:
+ case ATA_CMD_PIO_READ_EXT:
+ case ATA_CMD_PIO_WRITE:
+ case ATA_CMD_PIO_WRITE_EXT:
+ case ATA_CMD_READ_MULTI:
+ case ATA_CMD_READ_MULTI_EXT:
+ case ATA_CMD_WRITE_MULTI:
+ case ATA_CMD_WRITE_MULTI_EXT:
+ case ATA_CMD_ID_ATA:
+ /* Arguably should just no-op this one */
+ case ATA_CMD_SET_FEATURES:
+ return ata_qc_issue_prot(qc);
+ }
+ printk(KERN_DEBUG "it821x: can't process command 0x%02X\n", qc->tf.command);
+ return AC_ERR_INVALID;
+}
+
+/**
+ * it821x_passthru_qc_issue_prot - wrap qc issue prot
+ * @qc: command
+ *
+ * Wrap the command issue sequence for the IT821x. We need to
+ * perform out own device selection timing loads before the
+ * usual happenings kick off
+ */
+
+static unsigned int it821x_passthru_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ it821x_passthru_dev_select(qc->ap, qc->dev->devno);
+ return ata_qc_issue_prot(qc);
+}
+
+/**
+ * it821x_smart_set_mode - mode setting
+ * @ap: interface to set up
+ *
+ * Use a non standard set_mode function. We don't want to be tuned.
+ * The BIOS configured everything. Our job is not to fiddle. We
+ * read the dma enabled bits from the PCI configuration of the device
+ * and respect them.
+ */
+
+static void it821x_smart_set_mode(struct ata_port *ap)
+{
+ int dma_enabled = 0;
+ int i;
+
+ /* Bits 5 and 6 indicate if DMA is active on master/slave */
+ /* It is possible that BMDMA isn't allocated */
+ if (ap->ioaddr.bmdma_addr)
+ dma_enabled = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ struct ata_device *dev = &ap->device[i];
+ if (ata_dev_enabled(dev)) {
+ /* We don't really care */
+ dev->pio_mode = XFER_PIO_0;
+ dev->dma_mode = XFER_MW_DMA_0;
+ /* We do need the right mode information for DMA or PIO
+ and this comes from the current configuration flags */
+ if (dma_enabled & (1 << (5 + i))) {
+ dev->xfer_mode = XFER_MW_DMA_0;
+ dev->xfer_shift = ATA_SHIFT_MWDMA;
+ dev->flags &= ~ATA_DFLAG_PIO;
+ } else {
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
+ }
+ }
+ }
+}
+
+/**
+ * it821x_dev_config - Called each device identify
+ * @ap: ATA port
+ * @adev: Device that has just been identified
+ *
+ * Perform the initial setup needed for each device that is chip
+ * special. In our case we need to lock the sector count to avoid
+ * blowing the brains out of the firmware with large LBA48 requests
+ *
+ * FIXME: When FUA appears we need to block FUA too. And SMART and
+ * basically we need to filter commands for this chip.
+ */
+
+static void it821x_dev_config(struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned char model_num[40];
+ char *s;
+ unsigned int len;
+
+ /* This block ought to be a library routine as it is in several
+ drivers now */
+
+ ata_id_string(adev->id, model_num, ATA_ID_PROD_OFS,
+ sizeof(model_num));
+ s = &model_num[0];
+ len = strnlen(s, sizeof(model_num));
+
+ /* ATAPI specifies that empty space is blank-filled; remove blanks */
+ while ((len > 0) && (s[len - 1] == ' ')) {
+ len--;
+ s[len] = 0;
+ }
+
+ if (adev->max_sectors > 255)
+ adev->max_sectors = 255;
+
+ if (strstr(model_num, "Integrated Technology Express")) {
+ /* RAID mode */
+ printk(KERN_INFO "IT821x %sRAID%d volume",
+ adev->id[147]?"Bootable ":"",
+ adev->id[129]);
+ if (adev->id[129] != 1)
+ printk("(%dK stripe)", adev->id[146]);
+ printk(".\n");
+ }
+}
+
+
+/**
+ * it821x_check_atapi_dma - ATAPI DMA handler
+ * @qc: Command we are about to issue
+ *
+ * Decide if this ATAPI command can be issued by DMA on this
+ * controller. Return 0 if it can be.
+ */
+
+static int it821x_check_atapi_dma(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct it821x_dev *itdev = ap->private_data;
+
+ /* No ATAPI DMA in smart mode */
+ if (itdev->smart)
+ return -EOPNOTSUPP;
+ /* No ATAPI DMA on rev 10 */
+ if (itdev->timing10)
+ return -EOPNOTSUPP;
+ /* Cool */
+ return 0;
+}
+
+
+/**
+ * it821x_port_start - port setup
+ * @ap: ATA port being set up
+ *
+ * The it821x needs to maintain private data structures and also to
+ * use the standard PCI interface which lacks support for this
+ * functionality. We instead set up the private data on the port
+ * start hook, and tear it down on port stop
+ */
+
+static int it821x_port_start(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct it821x_dev *itdev;
+ u8 conf;
+
+ int ret = ata_port_start(ap);
+ if (ret < 0)
+ return ret;
+
+ ap->private_data = kmalloc(sizeof(struct it821x_dev), GFP_KERNEL);
+ if (ap->private_data == NULL) {
+ ata_port_stop(ap);
+ return -ENOMEM;
+ }
+
+ itdev = ap->private_data;
+ memset(itdev, 0, sizeof(struct it821x_dev));
+
+ pci_read_config_byte(pdev, 0x50, &conf);
+
+ if (conf & 1) {
+ itdev->smart = 1;
+ /* Long I/O's although allowed in LBA48 space cause the
+ onboard firmware to enter the twighlight zone */
+ /* No ATAPI DMA in this mode either */
+ }
+ /* Pull the current clocks from 0x50 */
+ if (conf & (1 << (1 + ap->port_no)))
+ itdev->clock_mode = ATA_50;
+ else
+ itdev->clock_mode = ATA_66;
+
+ itdev->want[0][1] = ATA_ANY;
+ itdev->want[1][1] = ATA_ANY;
+ itdev->last_device = -1;
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &conf);
+ if (conf == 0x10) {
+ itdev->timing10 = 1;
+ /* Need to disable ATAPI DMA for this case */
+ if (!itdev->smart)
+ printk(KERN_WARNING DRV_NAME": Revision 0x10, workarounds activated.\n");
+ }
+
+ return 0;
+}
+
+/**
+ * it821x_port_stop - port shutdown
+ * @ap: ATA port being removed
+ *
+ * Release the private objects we added in it821x_port_start
+ */
+
+static void it821x_port_stop(struct ata_port *ap) {
+ kfree(ap->private_data);
+ ap->private_data = NULL; /* We want an OOPS if we reuse this
+ too late! */
+ ata_port_stop(ap);
+}
+
+static struct scsi_host_template it821x_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ /* 255 sectors to begin with. This is locked in smart mode but not
+ in pass through */
+ .max_sectors = 255,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations it821x_smart_port_ops = {
+ .set_mode = it821x_smart_set_mode,
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .mode_filter = ata_pci_default_filter,
+
+ .check_status = ata_check_status,
+ .check_atapi_dma= it821x_check_atapi_dma,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+ .dev_config = it821x_dev_config,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = it821x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = it821x_smart_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = it821x_port_start,
+ .port_stop = it821x_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations it821x_passthru_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = it821x_passthru_set_piomode,
+ .set_dmamode = it821x_passthru_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .check_atapi_dma= it821x_check_atapi_dma,
+ .dev_select = it821x_passthru_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = it821x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = it821x_passthru_bmdma_start,
+ .bmdma_stop = it821x_passthru_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = it821x_passthru_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_clear = ata_bmdma_irq_clear,
+ .irq_handler = ata_interrupt,
+
+ .port_start = it821x_port_start,
+ .port_stop = it821x_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static void __devinit it821x_disable_raid(struct pci_dev *pdev)
+{
+ /* Reset local CPU, and set BIOS not ready */
+ pci_write_config_byte(pdev, 0x5E, 0x01);
+
+ /* Set to bypass mode, and reset PCI bus */
+ pci_write_config_byte(pdev, 0x50, 0x00);
+ pci_write_config_word(pdev, PCI_COMMAND,
+ PCI_COMMAND_PARITY | PCI_COMMAND_IO |
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+ pci_write_config_word(pdev, 0x40, 0xA0F3);
+
+ pci_write_config_dword(pdev,0x4C, 0x02040204);
+ pci_write_config_byte(pdev, 0x42, 0x36);
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x20);
+}
+
+
+static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ u8 conf;
+
+ static struct ata_port_info info_smart = {
+ .sht = &it821x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &it821x_smart_port_ops
+ };
+ static struct ata_port_info info_passthru = {
+ .sht = &it821x_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f,
+ .port_ops = &it821x_passthru_port_ops
+ };
+ static struct ata_port_info *port_info[2];
+
+ static char *mode[2] = { "pass through", "smart" };
+
+ /* Force the card into bypass mode if so requested */
+ if (it8212_noraid) {
+ printk(KERN_INFO DRV_NAME ": forcing bypass mode.\n");
+ it821x_disable_raid(pdev);
+ }
+ pci_read_config_byte(pdev, 0x50, &conf);
+ conf &= 1;
+
+ printk(KERN_INFO DRV_NAME ": controller in %s mode.\n", mode[conf]);
+ if (conf == 0)
+ port_info[0] = port_info[1] = &info_passthru;
+ else
+ port_info[0] = port_info[1] = &info_smart;
+
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static struct pci_device_id it821x[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8211), },
+ { PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8212), },
+ { 0, },
+};
+
+static struct pci_driver it821x_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = it821x,
+ .probe = it821x_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init it821x_init(void)
+{
+ return pci_register_driver(&it821x_pci_driver);
+}
+
+
+static void __exit it821x_exit(void)
+{
+ pci_unregister_driver(&it821x_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for the IT8211/IT8212 IDE RAID controller");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, it821x);
+MODULE_VERSION(DRV_VERSION);
+
+
+module_param_named(noraid, it8212_noraid, int, S_IRUGO);
+MODULE_PARM_DESC(it8212_noraid, "Force card into bypass mode");
+
+module_init(it821x_init);
+module_exit(it821x_exit);
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
new file mode 100644
index 0000000..6832a64
--- /dev/null
+++ b/drivers/ata/pata_jmicron.c
@@ -0,0 +1,266 @@
+/*
+ * pata_jmicron.c - JMicron ATA driver for non AHCI mode. This drives the
+ * PATA port of the controller. The SATA ports are
+ * driven by AHCI in the usual configuration although
+ * this driver can handle other setups if we need it.
+ *
+ * (c) 2006 Red Hat <alan@redhat.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_jmicron"
+#define DRV_VERSION "0.1.2"
+
+typedef enum {
+ PORT_PATA0 = 0,
+ PORT_PATA1 = 1,
+ PORT_SATA = 2,
+} port_type;
+
+/**
+ * jmicron_pre_reset - check for 40/80 pin
+ * @ap: Port
+ *
+ * Perform the PATA port setup we need.
+
+ * On the Jmicron 361/363 there is a single PATA port that can be mapped
+ * either as primary or secondary (or neither). We don't do any policy
+ * and setup here. We assume that has been done by init_one and the
+ * BIOS.
+ */
+
+static int jmicron_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 control;
+ u32 control5;
+ int port_mask = 1<< (4 * ap->port_no);
+ int port = ap->port_no;
+ port_type port_map[2];
+
+ /* Check if our port is enabled */
+ pci_read_config_dword(pdev, 0x40, &control);
+ if ((control & port_mask) == 0)
+ return 0;
+
+ /* There are two basic mappings. One has the two SATA ports merged
+ as master/slave and the secondary as PATA, the other has only the
+ SATA port mapped */
+ if (control & (1 << 23)) {
+ port_map[0] = PORT_SATA;
+ port_map[1] = PORT_PATA0;
+ } else {
+ port_map[0] = PORT_SATA;
+ port_map[1] = PORT_SATA;
+ }
+
+ /* The 365/366 may have this bit set to map the second PATA port
+ as the internal primary channel */
+ pci_read_config_dword(pdev, 0x80, &control5);
+ if (control5 & (1<<24))
+ port_map[0] = PORT_PATA1;
+
+ /* The two ports may then be logically swapped by the firmware */
+ if (control & (1 << 22))
+ port = port ^ 1;
+
+ /*
+ * Now we know which physical port we are talking about we can
+ * actually do our cable checking etc. Thankfully we don't need
+ * to do the plumbing for other cases.
+ */
+ switch (port_map[port])
+ {
+ case PORT_PATA0:
+ if (control & (1 << 5))
+ return 0;
+ if (control & (1 << 3)) /* 40/80 pin primary */
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+ break;
+ case PORT_PATA1:
+ /* Bit 21 is set if the port is enabled */
+ if ((control5 & (1 << 21)) == 0)
+ return 0;
+ if (control5 & (1 << 19)) /* 40/80 pin secondary */
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+ break;
+ case PORT_SATA:
+ ap->cbl = ATA_CBL_SATA;
+ break;
+ }
+ return ata_std_prereset(ap);
+}
+
+/**
+ * jmicron_error_handler - Setup and error handler
+ * @ap: Port to handle
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void jmicron_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, jmicron_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/* No PIO or DMA methods needed for this device */
+
+static struct scsi_host_template jmicron_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ /* Special handling needed if you have sector or LBA48 limits */
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ /* Use standard CHS mapping rules */
+ .bios_param = ata_std_bios_param,
+};
+
+static const struct ata_port_operations jmicron_ops = {
+ .port_disable = ata_port_disable,
+
+ /* Task file is PCI ATA format, use helpers */
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = jmicron_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ /* BMDMA handling is PCI ATA format, use helpers */
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ /* Timeout handling. Special recovery hooks here */
+ .eng_timeout = ata_eng_timeout,
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ /* Generic PATA PCI ATA helpers */
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+
+/**
+ * jmicron_init_one - Register Jmicron ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in jmicron_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &jmicron_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+
+ .port_ops = &jmicron_ops,
+ };
+ struct ata_port_info *port_info[2] = { &info, &info };
+
+ u32 reg;
+
+ if (id->driver_data != 368) {
+ /* Put the controller into AHCI mode in case the AHCI driver
+ has not yet been loaded. This can be done with either
+ function present */
+
+ /* FIXME: We may want a way to override this in future */
+ pci_write_config_byte(pdev, 0x41, 0xa1);
+ }
+
+ /* PATA controller is fn 1, AHCI is fn 0 */
+ if (PCI_FUNC(pdev->devfn) != 1)
+ return -ENODEV;
+
+ if ( id->driver_data == 365 || id->driver_data == 366) {
+ /* The 365/66 have two PATA channels, redirect the second */
+ pci_read_config_dword(pdev, 0x80, ®);
+ reg |= (1 << 24); /* IDE1 to PATA IDE secondary */
+ pci_write_config_dword(pdev, 0x80, reg);
+ }
+
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id jmicron_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361), 361},
+ { PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363), 363},
+ { PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365), 365},
+ { PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366), 366},
+ { PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368), 368},
+ { } /* terminate list */
+};
+
+static struct pci_driver jmicron_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = jmicron_pci_tbl,
+ .probe = jmicron_init_one,
+ .remove = ata_pci_remove_one,
+};
+
+static int __init jmicron_init(void)
+{
+ return pci_register_driver(&jmicron_pci_driver);
+}
+
+static void __exit jmicron_exit(void)
+{
+ pci_unregister_driver(&jmicron_pci_driver);
+}
+
+module_init(jmicron_init);
+module_exit(jmicron_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for Jmicron PATA ports");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, jmicron_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
new file mode 100644
index 0000000..eb51066
--- /dev/null
+++ b/drivers/ata/pata_legacy.c
@@ -0,0 +1,949 @@
+/*
+ * pata-legacy.c - Legacy port PATA/SATA controller driver.
+ * Copyright 2005/2006 Red Hat <alan@redhat.com>, all rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * An ATA driver for the legacy ATA ports.
+ *
+ * Data Sources:
+ * Opti 82C465/82C611 support: Data sheets at opti-inc.com
+ * HT6560 series:
+ * Promise 20230/20620:
+ * http://www.ryston.cz/petr/vlb/pdc20230b.html
+ * http://www.ryston.cz/petr/vlb/pdc20230c.html
+ * http://www.ryston.cz/petr/vlb/pdc20630.html
+ *
+ * Unsupported but docs exist:
+ * Appian/Adaptec AIC25VL01/Cirrus Logic PD7220
+ * Winbond W83759A
+ *
+ * This driver handles legacy (that is "ISA/VLB side") IDE ports found
+ * on PC class systems. There are three hybrid devices that are exceptions
+ * The Cyrix 5510/5520 where a pre SFF ATA device is on the bridge and
+ * the MPIIX where the tuning is PCI side but the IDE is "ISA side".
+ *
+ * Specific support is included for the ht6560a/ht6560b/opti82c611a/
+ * opti82c465mv/promise 20230c/20630
+ *
+ * Use the autospeed and pio_mask options with:
+ * Appian ADI/2 aka CLPD7220 or AIC25VL01.
+ * Use the jumpers, autospeed and set pio_mask to the mode on the jumpers with
+ * Goldstar GM82C711, PIC-1288A-125, UMC 82C871F, Winbond W83759,
+ * Winbond W83759A, Promise PDC20230-B
+ *
+ * For now use autospeed and pio_mask as above with the W83759A. This may
+ * change.
+ *
+ * TODO
+ * Merge existing pata_qdi driver
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/ata.h>
+#include <linux/libata.h>
+#include <linux/platform_device.h>
+
+#define DRV_NAME "pata_legacy"
+#define DRV_VERSION "0.5.3"
+
+#define NR_HOST 6
+
+static int legacy_port[NR_HOST] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 };
+static int legacy_irq[NR_HOST] = { 15, 14, 11, 10, 8, 12 };
+
+struct legacy_data {
+ unsigned long timing;
+ u8 clock[2];
+ u8 last;
+ int fast;
+ struct platform_device *platform_dev;
+
+};
+
+static struct legacy_data legacy_data[NR_HOST];
+static struct ata_host *legacy_host[NR_HOST];
+static int nr_legacy_host;
+
+
+static int probe_all; /* Set to check all ISA port ranges */
+static int ht6560a; /* HT 6560A on primary 1, secondary 2, both 3 */
+static int ht6560b; /* HT 6560A on primary 1, secondary 2, both 3 */
+static int opti82c611a; /* Opti82c611A on primary 1, secondary 2, both 3 */
+static int opti82c46x; /* Opti 82c465MV present (pri/sec autodetect) */
+static int autospeed; /* Chip present which snoops speed changes */
+static int pio_mask = 0x1F; /* PIO range for autospeed devices */
+
+/**
+ * legacy_set_mode - mode setting
+ * @ap: IDE interface
+ *
+ * Use a non standard set_mode function. We don't want to be tuned.
+ *
+ * The BIOS configured everything. Our job is not to fiddle. Just use
+ * whatever PIO the hardware is using and leave it at that. When we
+ * get some kind of nice user driven API for control then we can
+ * expand on this as per hdparm in the base kernel.
+ */
+
+static void legacy_set_mode(struct ata_port *ap)
+{
+ int i;
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ struct ata_device *dev = &ap->device[i];
+ if (ata_dev_enabled(dev)) {
+ dev->pio_mode = XFER_PIO_0;
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
+ }
+ }
+}
+
+static struct scsi_host_template legacy_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+/*
+ * These ops are used if the user indicates the hardware
+ * snoops the commands to decide on the mode and handles the
+ * mode selection "magically" itself. Several legacy controllers
+ * do this. The mode range can be set if it is not 0x1F by setting
+ * pio_mask as well.
+ */
+
+static struct ata_port_operations simple_port_ops = {
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ata_bmdma_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer_noirq,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations legacy_port_ops = {
+ .set_mode = legacy_set_mode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = ata_bmdma_error_handler,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer_noirq,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Promise 20230C and 20620 support
+ *
+ * This controller supports PIO0 to PIO2. We set PIO timings conservatively to
+ * allow for 50MHz Vesa Local Bus. The 20620 DMA support is weird being DMA to
+ * controller and PIO'd to the host and not supported.
+ */
+
+static void pdc20230_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ int tries = 5;
+ int pio = adev->pio_mode - XFER_PIO_0;
+ u8 rt;
+ unsigned long flags;
+
+ /* Safe as UP only. Force I/Os to occur together */
+
+ local_irq_save(flags);
+
+ /* Unlock the control interface */
+ do
+ {
+ inb(0x1F5);
+ outb(inb(0x1F2) | 0x80, 0x1F2);
+ inb(0x1F2);
+ inb(0x3F6);
+ inb(0x3F6);
+ inb(0x1F2);
+ inb(0x1F2);
+ }
+ while((inb(0x1F2) & 0x80) && --tries);
+
+ local_irq_restore(flags);
+
+ outb(inb(0x1F4) & 0x07, 0x1F4);
+
+ rt = inb(0x1F3);
+ rt &= 0x07 << (3 * adev->devno);
+ if (pio)
+ rt |= (1 + 3 * pio) << (3 * adev->devno);
+
+ udelay(100);
+ outb(inb(0x1F2) | 0x01, 0x1F2);
+ udelay(100);
+ inb(0x1F5);
+
+}
+
+static void pdc_data_xfer_vlb(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
+{
+ struct ata_port *ap = adev->ap;
+ int slop = buflen & 3;
+ unsigned long flags;
+
+ if (ata_id_has_dword_io(adev->id)) {
+ local_irq_save(flags);
+
+ /* Perform the 32bit I/O synchronization sequence */
+ inb(ap->ioaddr.nsect_addr);
+ inb(ap->ioaddr.nsect_addr);
+ inb(ap->ioaddr.nsect_addr);
+
+ /* Now the data */
+
+ if (write_data)
+ outsl(ap->ioaddr.data_addr, buf, buflen >> 2);
+ else
+ insl(ap->ioaddr.data_addr, buf, buflen >> 2);
+
+ if (unlikely(slop)) {
+ u32 pad;
+ if (write_data) {
+ memcpy(&pad, buf + buflen - slop, slop);
+ outl(le32_to_cpu(pad), ap->ioaddr.data_addr);
+ } else {
+ pad = cpu_to_le16(inl(ap->ioaddr.data_addr));
+ memcpy(buf + buflen - slop, &pad, slop);
+ }
+ }
+ local_irq_restore(flags);
+ }
+ else
+ ata_pio_data_xfer_noirq(adev, buf, buflen, write_data);
+}
+
+static struct ata_port_operations pdc20230_port_ops = {
+ .set_piomode = pdc20230_set_piomode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = ata_bmdma_error_handler,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = pdc_data_xfer_vlb,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Holtek 6560A support
+ *
+ * This controller supports PIO0 to PIO2 (no IORDY even though higher timings
+ * can be loaded).
+ */
+
+static void ht6560a_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ u8 active, recover;
+ struct ata_timing t;
+
+ /* Get the timing data in cycles. For now play safe at 50Mhz */
+ ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000);
+
+ active = FIT(t.active, 2, 15);
+ recover = FIT(t.recover, 4, 15);
+
+ inb(0x3E6);
+ inb(0x3E6);
+ inb(0x3E6);
+ inb(0x3E6);
+
+ outb(recover << 4 | active, ap->ioaddr.device_addr);
+ inb(ap->ioaddr.status_addr);
+}
+
+static struct ata_port_operations ht6560a_port_ops = {
+ .set_piomode = ht6560a_set_piomode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = ata_bmdma_error_handler,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer, /* Check vlb/noirq */
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Holtek 6560B support
+ *
+ * This controller supports PIO0 to PIO4. We honour the BIOS/jumper FIFO setting
+ * unless we see an ATAPI device in which case we force it off.
+ *
+ * FIXME: need to implement 2nd channel support.
+ */
+
+static void ht6560b_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ u8 active, recover;
+ struct ata_timing t;
+
+ /* Get the timing data in cycles. For now play safe at 50Mhz */
+ ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000);
+
+ active = FIT(t.active, 2, 15);
+ recover = FIT(t.recover, 2, 16);
+ recover &= 0x15;
+
+ inb(0x3E6);
+ inb(0x3E6);
+ inb(0x3E6);
+ inb(0x3E6);
+
+ outb(recover << 4 | active, ap->ioaddr.device_addr);
+
+ if (adev->class != ATA_DEV_ATA) {
+ u8 rconf = inb(0x3E6);
+ if (rconf & 0x24) {
+ rconf &= ~ 0x24;
+ outb(rconf, 0x3E6);
+ }
+ }
+ inb(ap->ioaddr.status_addr);
+}
+
+static struct ata_port_operations ht6560b_port_ops = {
+ .set_piomode = ht6560b_set_piomode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = ata_bmdma_error_handler,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer, /* FIXME: Check 32bit and noirq */
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Opti core chipset helpers
+ */
+
+/**
+ * opti_syscfg - read OPTI chipset configuration
+ * @reg: Configuration register to read
+ *
+ * Returns the value of an OPTI system board configuration register.
+ */
+
+static u8 opti_syscfg(u8 reg)
+{
+ unsigned long flags;
+ u8 r;
+
+ /* Uniprocessor chipset and must force cycles adjancent */
+ local_irq_save(flags);
+ outb(reg, 0x22);
+ r = inb(0x24);
+ local_irq_restore(flags);
+ return r;
+}
+
+/*
+ * Opti 82C611A
+ *
+ * This controller supports PIO0 to PIO3.
+ */
+
+static void opti82c611a_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ u8 active, recover, setup;
+ struct ata_timing t;
+ struct ata_device *pair = ata_dev_pair(adev);
+ int clock;
+ int khz[4] = { 50000, 40000, 33000, 25000 };
+ u8 rc;
+
+ /* Enter configuration mode */
+ inw(ap->ioaddr.error_addr);
+ inw(ap->ioaddr.error_addr);
+ outb(3, ap->ioaddr.nsect_addr);
+
+ /* Read VLB clock strapping */
+ clock = 1000000000 / khz[inb(ap->ioaddr.lbah_addr) & 0x03];
+
+ /* Get the timing data in cycles */
+ ata_timing_compute(adev, adev->pio_mode, &t, clock, 1000);
+
+ /* Setup timing is shared */
+ if (pair) {
+ struct ata_timing tp;
+ ata_timing_compute(pair, pair->pio_mode, &tp, clock, 1000);
+
+ ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP);
+ }
+
+ active = FIT(t.active, 2, 17) - 2;
+ recover = FIT(t.recover, 1, 16) - 1;
+ setup = FIT(t.setup, 1, 4) - 1;
+
+ /* Select the right timing bank for write timing */
+ rc = inb(ap->ioaddr.lbal_addr);
+ rc &= 0x7F;
+ rc |= (adev->devno << 7);
+ outb(rc, ap->ioaddr.lbal_addr);
+
+ /* Write the timings */
+ outb(active << 4 | recover, ap->ioaddr.error_addr);
+
+ /* Select the right bank for read timings, also
+ load the shared timings for address */
+ rc = inb(ap->ioaddr.device_addr);
+ rc &= 0xC0;
+ rc |= adev->devno; /* Index select */
+ rc |= (setup << 4) | 0x04;
+ outb(rc, ap->ioaddr.device_addr);
+
+ /* Load the read timings */
+ outb(active << 4 | recover, ap->ioaddr.data_addr);
+
+ /* Ensure the timing register mode is right */
+ rc = inb (ap->ioaddr.lbal_addr);
+ rc &= 0x73;
+ rc |= 0x84;
+ outb(rc, ap->ioaddr.lbal_addr);
+
+ /* Exit command mode */
+ outb(0x83, ap->ioaddr.nsect_addr);
+}
+
+
+static struct ata_port_operations opti82c611a_port_ops = {
+ .set_piomode = opti82c611a_set_piomode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = ata_bmdma_error_handler,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/*
+ * Opti 82C465MV
+ *
+ * This controller supports PIO0 to PIO3. Unlike the 611A the MVB
+ * version is dual channel but doesn't have a lot of unique registers.
+ */
+
+static void opti82c46x_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ u8 active, recover, setup;
+ struct ata_timing t;
+ struct ata_device *pair = ata_dev_pair(adev);
+ int clock;
+ int khz[4] = { 50000, 40000, 33000, 25000 };
+ u8 rc;
+ u8 sysclk;
+
+ /* Get the clock */
+ sysclk = opti_syscfg(0xAC) & 0xC0; /* BIOS set */
+
+ /* Enter configuration mode */
+ inw(ap->ioaddr.error_addr);
+ inw(ap->ioaddr.error_addr);
+ outb(3, ap->ioaddr.nsect_addr);
+
+ /* Read VLB clock strapping */
+ clock = 1000000000 / khz[sysclk];
+
+ /* Get the timing data in cycles */
+ ata_timing_compute(adev, adev->pio_mode, &t, clock, 1000);
+
+ /* Setup timing is shared */
+ if (pair) {
+ struct ata_timing tp;
+ ata_timing_compute(pair, pair->pio_mode, &tp, clock, 1000);
+
+ ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP);
+ }
+
+ active = FIT(t.active, 2, 17) - 2;
+ recover = FIT(t.recover, 1, 16) - 1;
+ setup = FIT(t.setup, 1, 4) - 1;
+
+ /* Select the right timing bank for write timing */
+ rc = inb(ap->ioaddr.lbal_addr);
+ rc &= 0x7F;
+ rc |= (adev->devno << 7);
+ outb(rc, ap->ioaddr.lbal_addr);
+
+ /* Write the timings */
+ outb(active << 4 | recover, ap->ioaddr.error_addr);
+
+ /* Select the right bank for read timings, also
+ load the shared timings for address */
+ rc = inb(ap->ioaddr.device_addr);
+ rc &= 0xC0;
+ rc |= adev->devno; /* Index select */
+ rc |= (setup << 4) | 0x04;
+ outb(rc, ap->ioaddr.device_addr);
+
+ /* Load the read timings */
+ outb(active << 4 | recover, ap->ioaddr.data_addr);
+
+ /* Ensure the timing register mode is right */
+ rc = inb (ap->ioaddr.lbal_addr);
+ rc &= 0x73;
+ rc |= 0x84;
+ outb(rc, ap->ioaddr.lbal_addr);
+
+ /* Exit command mode */
+ outb(0x83, ap->ioaddr.nsect_addr);
+
+ /* We need to know this for quad device on the MVB */
+ ap->host->private_data = ap;
+}
+
+/**
+ * opt82c465mv_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings. The
+ * MVB has a single set of timing registers and these are shared
+ * across channels. As there are two registers we really ought to
+ * track the last two used values as a sort of register window. For
+ * now we just reload on a channel switch. On the single channel
+ * setup this condition never fires so we do nothing extra.
+ *
+ * FIXME: dual channel needs ->serialize support
+ */
+
+static unsigned int opti82c46x_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+
+ /* If timings are set and for the wrong channel (2nd test is
+ due to a libata shortcoming and will eventually go I hope) */
+ if (ap->host->private_data != ap->host
+ && ap->host->private_data != NULL)
+ opti82c46x_set_piomode(ap, adev);
+
+ return ata_qc_issue_prot(qc);
+}
+
+static struct ata_port_operations opti82c46x_port_ops = {
+ .set_piomode = opti82c46x_set_piomode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = ata_bmdma_error_handler,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = opti82c46x_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+
+/**
+ * legacy_init_one - attach a legacy interface
+ * @port: port number
+ * @io: I/O port start
+ * @ctrl: control port
+ * @irq: interrupt line
+ *
+ * Register an ISA bus IDE interface. Such interfaces are PIO and we
+ * assume do not support IRQ sharing.
+ */
+
+static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl, int irq)
+{
+ struct legacy_data *ld = &legacy_data[nr_legacy_host];
+ struct ata_probe_ent ae;
+ struct platform_device *pdev;
+ int ret = -EBUSY;
+ struct ata_port_operations *ops = &legacy_port_ops;
+ int pio_modes = pio_mask;
+ u32 mask = (1 << port);
+
+ if (request_region(io, 8, "pata_legacy") == NULL)
+ return -EBUSY;
+ if (request_region(ctrl, 1, "pata_legacy") == NULL)
+ goto fail_io;
+
+ pdev = platform_device_register_simple(DRV_NAME, nr_legacy_host, NULL, 0);
+ if (pdev == NULL)
+ goto fail_dev;
+
+ if (ht6560a & mask) {
+ ops = &ht6560a_port_ops;
+ pio_modes = 0x07;
+ }
+ if (ht6560b & mask) {
+ ops = &ht6560b_port_ops;
+ pio_modes = 0x1F;
+ }
+ if (opti82c611a & mask) {
+ ops = &opti82c611a_port_ops;
+ pio_modes = 0x0F;
+ }
+ if (opti82c46x & mask) {
+ ops = &opti82c46x_port_ops;
+ pio_modes = 0x0F;
+ }
+
+ /* Probe for automatically detectable controllers */
+
+ if (io == 0x1F0 && ops == &legacy_port_ops) {
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ /* Probes */
+ inb(0x1F5);
+ outb(inb(0x1F2) | 0x80, 0x1F2);
+ inb(0x1F2);
+ inb(0x3F6);
+ inb(0x3F6);
+ inb(0x1F2);
+ inb(0x1F2);
+
+ if ((inb(0x1F2) & 0x80) == 0) {
+ /* PDC20230c or 20630 ? */
+ printk(KERN_INFO "PDC20230-C/20630 VLB ATA controller detected.\n");
+ pio_modes = 0x07;
+ ops = &pdc20230_port_ops;
+ udelay(100);
+ inb(0x1F5);
+ } else {
+ outb(0x55, 0x1F2);
+ inb(0x1F2);
+ inb(0x1F2);
+ if (inb(0x1F2) == 0x00) {
+ printk(KERN_INFO "PDC20230-B VLB ATA controller detected.\n");
+ }
+ }
+ local_irq_restore(flags);
+ }
+
+
+ /* Chip does mode setting by command snooping */
+ if (ops == &legacy_port_ops && (autospeed & mask))
+ ops = &simple_port_ops;
+ memset(&ae, 0, sizeof(struct ata_probe_ent));
+ INIT_LIST_HEAD(&ae.node);
+ ae.dev = &pdev->dev;
+ ae.port_ops = ops;
+ ae.sht = &legacy_sht;
+ ae.n_ports = 1;
+ ae.pio_mask = pio_modes;
+ ae.irq = irq;
+ ae.irq_flags = 0;
+ ae.port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST;
+ ae.port[0].cmd_addr = io;
+ ae.port[0].altstatus_addr = ctrl;
+ ae.port[0].ctl_addr = ctrl;
+ ata_std_ports(&ae.port[0]);
+ ae.private_data = ld;
+
+ ret = ata_device_add(&ae);
+ if (ret == 0) {
+ ret = -ENODEV;
+ goto fail;
+ }
+ legacy_host[nr_legacy_host++] = dev_get_drvdata(&pdev->dev);
+ ld->platform_dev = pdev;
+ return 0;
+
+fail:
+ platform_device_unregister(pdev);
+fail_dev:
+ release_region(ctrl, 1);
+fail_io:
+ release_region(io, 8);
+ return ret;
+}
+
+/**
+ * legacy_check_special_cases - ATA special cases
+ * @p: PCI device to check
+ * @master: set this if we find an ATA master
+ * @master: set this if we find an ATA secondary
+ *
+ * A small number of vendors implemented early PCI ATA interfaces on bridge logic
+ * without the ATA interface being PCI visible. Where we have a matching PCI driver
+ * we must skip the relevant device here. If we don't know about it then the legacy
+ * driver is the right driver anyway.
+ */
+
+static void legacy_check_special_cases(struct pci_dev *p, int *primary, int *secondary)
+{
+ /* Cyrix CS5510 pre SFF MWDMA ATA on the bridge */
+ if (p->vendor == 0x1078 && p->device == 0x0000) {
+ *primary = *secondary = 1;
+ return;
+ }
+ /* Cyrix CS5520 pre SFF MWDMA ATA on the bridge */
+ if (p->vendor == 0x1078 && p->device == 0x0002) {
+ *primary = *secondary = 1;
+ return;
+ }
+ /* Intel MPIIX - PIO ATA on non PCI side of bridge */
+ if (p->vendor == 0x8086 && p->device == 0x1234) {
+ u16 r;
+ pci_read_config_word(p, 0x6C, &r);
+ if (r & 0x8000) { /* ATA port enabled */
+ if (r & 0x4000)
+ *secondary = 1;
+ else
+ *primary = 1;
+ }
+ return;
+ }
+}
+
+
+/**
+ * legacy_init - attach legacy interfaces
+ *
+ * Attach legacy IDE interfaces by scanning the usual IRQ/port suspects.
+ * Right now we do not scan the ide0 and ide1 address but should do so
+ * for non PCI systems or systems with no PCI IDE legacy mode devices.
+ * If you fix that note there are special cases to consider like VLB
+ * drivers and CS5510/20.
+ */
+
+static __init int legacy_init(void)
+{
+ int i;
+ int ct = 0;
+ int primary = 0;
+ int secondary = 0;
+ int last_port = NR_HOST;
+
+ struct pci_dev *p = NULL;
+
+ for_each_pci_dev(p) {
+ int r;
+ /* Check for any overlap of the system ATA mappings. Native mode controllers
+ stuck on these addresses or some devices in 'raid' mode won't be found by
+ the storage class test */
+ for (r = 0; r < 6; r++) {
+ if (pci_resource_start(p, r) == 0x1f0)
+ primary = 1;
+ if (pci_resource_start(p, r) == 0x170)
+ secondary = 1;
+ }
+ /* Check for special cases */
+ legacy_check_special_cases(p, &primary, &secondary);
+
+ /* If PCI bus is present then don't probe for tertiary legacy ports */
+ if (probe_all == 0)
+ last_port = 2;
+ }
+
+ /* If an OPTI 82C46X is present find out where the channels are */
+ if (opti82c46x) {
+ static const char *optis[4] = {
+ "3/463MV", "5MV",
+ "5MVA", "5MVB"
+ };
+ u8 chans = 1;
+ u8 ctrl = (opti_syscfg(0x30) & 0xC0) >> 6;
+
+ opti82c46x = 3; /* Assume master and slave first */
+ printk(KERN_INFO DRV_NAME ": Opti 82C46%s chipset support.\n", optis[ctrl]);
+ if (ctrl == 3)
+ chans = (opti_syscfg(0x3F) & 0x20) ? 2 : 1;
+ ctrl = opti_syscfg(0xAC);
+ /* Check enabled and this port is the 465MV port. On the
+ MVB we may have two channels */
+ if (ctrl & 8) {
+ if (ctrl & 4)
+ opti82c46x = 2; /* Slave */
+ else
+ opti82c46x = 1; /* Master */
+ if (chans == 2)
+ opti82c46x = 3; /* Master and Slave */
+ } /* Slave only */
+ else if (chans == 1)
+ opti82c46x = 1;
+ }
+
+ for (i = 0; i < last_port; i++) {
+ /* Skip primary if we have seen a PCI one */
+ if (i == 0 && primary == 1)
+ continue;
+ /* Skip secondary if we have seen a PCI one */
+ if (i == 1 && secondary == 1)
+ continue;
+ if (legacy_init_one(i, legacy_port[i],
+ legacy_port[i] + 0x0206,
+ legacy_irq[i]) == 0)
+ ct++;
+ }
+ if (ct != 0)
+ return 0;
+ return -ENODEV;
+}
+
+static __exit void legacy_exit(void)
+{
+ int i;
+
+ for (i = 0; i < nr_legacy_host; i++) {
+ struct legacy_data *ld = &legacy_data[i];
+ struct ata_port *ap =legacy_host[i]->ports[0];
+ unsigned long io = ap->ioaddr.cmd_addr;
+ unsigned long ctrl = ap->ioaddr.ctl_addr;
+ ata_host_remove(legacy_host[i]);
+ platform_device_unregister(ld->platform_dev);
+ if (ld->timing)
+ release_region(ld->timing, 2);
+ release_region(io, 8);
+ release_region(ctrl, 1);
+ }
+}
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for legacy ATA");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_param(probe_all, int, 0);
+module_param(autospeed, int, 0);
+module_param(ht6560a, int, 0);
+module_param(ht6560b, int, 0);
+module_param(opti82c611a, int, 0);
+module_param(opti82c46x, int, 0);
+module_param(pio_mask, int, 0);
+
+module_init(legacy_init);
+module_exit(legacy_exit);
+
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c
new file mode 100644
index 0000000..1958c4e
--- /dev/null
+++ b/drivers/ata/pata_mpiix.c
@@ -0,0 +1,313 @@
+/*
+ * pata_mpiix.c - Intel MPIIX PATA for new ATA layer
+ * (C) 2005-2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * The MPIIX is different enough to the PIIX4 and friends that we give it
+ * a separate driver. The old ide/pci code handles this by just not tuning
+ * MPIIX at all.
+ *
+ * The MPIIX also differs in another important way from the majority of PIIX
+ * devices. The chip is a bridge (pardon the pun) between the old world of
+ * ISA IDE and PCI IDE. Although the ATA timings are PCI configured the actual
+ * IDE controller is not decoded in PCI space and the chip does not claim to
+ * be IDE class PCI. This requires slightly non-standard probe logic compared
+ * with PCI IDE and also that we do not disable the device when our driver is
+ * unloaded (as it has many other functions).
+ *
+ * The driver conciously keeps this logic internally to avoid pushing quirky
+ * PATA history into the clean libata layer.
+ *
+ * Thinkpad specific note: If you boot an MPIIX using thinkpad with a PCMCIA
+ * hard disk present this driver will not detect it. This is not a bug. In this
+ * configuration the secondary port of the MPIIX is disabled and the addresses
+ * are decoded by the PCMCIA bridge and therefore are for a generic IDE driver
+ * to operate.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_mpiix"
+#define DRV_VERSION "0.7.1"
+
+enum {
+ IDETIM = 0x6C, /* IDE control register */
+ IORDY = (1 << 1),
+ PPE = (1 << 2),
+ FTIM = (1 << 0),
+ ENABLED = (1 << 15),
+ SECONDARY = (1 << 14)
+};
+
+static int mpiix_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static const struct pci_bits mpiix_enable_bits[] = {
+ { 0x6D, 1, 0x80, 0x80 },
+ { 0x6F, 1, 0x80, 0x80 }
+ };
+
+ if (!pci_test_config_bits(pdev, &mpiix_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * mpiix_error_handler - probe reset
+ * @ap: ATA port
+ *
+ * Perform the ATA probe and bus reset sequence plus specific handling
+ * for this hardware. The MPIIX has the enable bits in a different place
+ * to PIIX4 and friends. As a pure PIO device it has no cable detect
+ */
+
+static void mpiix_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, mpiix_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * mpiix_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup. The MPIIX allows us to program the
+ * IORDY sample point (2-5 clocks), recovery 1-4 clocks and whether
+ * prefetching or iordy are used.
+ *
+ * This would get very ugly because we can only program timing for one
+ * device at a time, the other gets PIO0. Fortunately libata calls
+ * our qc_issue_prot command before a command is issued so we can
+ * flip the timings back and forth to reduce the pain.
+ */
+
+static void mpiix_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ int control = 0;
+ int pio = adev->pio_mode - XFER_PIO_0;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u16 idetim;
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ pci_read_config_word(pdev, IDETIM, &idetim);
+ /* Mask the IORDY/TIME/PPE0 bank for this device */
+ if (adev->class == ATA_DEV_ATA)
+ control |= PPE; /* PPE enable for disk */
+ if (ata_pio_need_iordy(adev))
+ control |= IORDY; /* IORDY */
+ if (pio > 0)
+ control |= FTIM; /* This drive is on the fast timing bank */
+
+ /* Mask out timing and clear both TIME bank selects */
+ idetim &= 0xCCEE;
+ idetim &= ~(0x07 << (2 * adev->devno));
+ idetim |= (control << (2 * adev->devno));
+
+ idetim |= (timings[pio][0] << 12) | (timings[pio][1] << 8);
+ pci_write_config_word(pdev, IDETIM, idetim);
+
+ /* We use ap->private_data as a pointer to the device currently
+ loaded for timing */
+ ap->private_data = adev;
+}
+
+/**
+ * mpiix_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings if
+ * neccessary. Our logic also clears TIME0/TIME1 for the other device so
+ * that, even if we get this wrong, cycles to the other device will
+ * be made PIO0.
+ */
+
+static unsigned int mpiix_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+
+ /* If modes have been configured and the channel data is not loaded
+ then load it. We have to check if pio_mode is set as the core code
+ does not set adev->pio_mode to XFER_PIO_0 while probing as would be
+ logical */
+
+ if (adev->pio_mode && adev != ap->private_data)
+ mpiix_set_piomode(ap, adev);
+
+ return ata_qc_issue_prot(qc);
+}
+
+static struct scsi_host_template mpiix_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations mpiix_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = mpiix_set_piomode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = mpiix_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = mpiix_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ /* Single threaded by the PCI probe logic */
+ static struct ata_probe_ent probe[2];
+ static int printed_version;
+ u16 idetim;
+ int enabled;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
+
+ /* MPIIX has many functions which can be turned on or off according
+ to other devices present. Make sure IDE is enabled before we try
+ and use it */
+
+ pci_read_config_word(dev, IDETIM, &idetim);
+ if (!(idetim & ENABLED))
+ return -ENODEV;
+
+ /* We do our own plumbing to avoid leaking special cases for whacko
+ ancient hardware into the core code. There are two issues to
+ worry about. #1 The chip is a bridge so if in legacy mode and
+ without BARs set fools the setup. #2 If you pci_disable_device
+ the MPIIX your box goes castors up */
+
+ INIT_LIST_HEAD(&probe[0].node);
+ probe[0].dev = pci_dev_to_dev(dev);
+ probe[0].port_ops = &mpiix_port_ops;
+ probe[0].sht = &mpiix_sht;
+ probe[0].pio_mask = 0x1F;
+ probe[0].irq = 14;
+ probe[0].irq_flags = SA_SHIRQ;
+ probe[0].port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
+ probe[0].n_ports = 1;
+ probe[0].port[0].cmd_addr = 0x1F0;
+ probe[0].port[0].ctl_addr = 0x3F6;
+ probe[0].port[0].altstatus_addr = 0x3F6;
+
+ /* The secondary lurks at different addresses but is otherwise
+ the same beastie */
+
+ INIT_LIST_HEAD(&probe[1].node);
+ probe[1] = probe[0];
+ probe[1].irq = 15;
+ probe[1].port[0].cmd_addr = 0x170;
+ probe[1].port[0].ctl_addr = 0x376;
+ probe[1].port[0].altstatus_addr = 0x376;
+
+ /* Let libata fill in the port details */
+ ata_std_ports(&probe[0].port[0]);
+ ata_std_ports(&probe[1].port[0]);
+
+ /* Now add the port that is active */
+ enabled = (idetim & SECONDARY) ? 1 : 0;
+
+ if (ata_device_add(&probe[enabled]))
+ return 0;
+ return -ENODEV;
+}
+
+/**
+ * mpiix_remove_one - device unload
+ * @pdev: PCI device being removed
+ *
+ * Handle an unplug/unload event for a PCI device. Unload the
+ * PCI driver but do not use the default handler as we *MUST NOT*
+ * disable the device as it has other functions.
+ */
+
+static void __devexit mpiix_remove_one(struct pci_dev *pdev)
+{
+ struct device *dev = pci_dev_to_dev(pdev);
+ struct ata_host *host = dev_get_drvdata(dev);
+
+ ata_host_remove(host);
+ dev_set_drvdata(dev, NULL);
+}
+
+
+
+static const struct pci_device_id mpiix[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371MX), },
+ { 0, },
+};
+
+static struct pci_driver mpiix_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = mpiix,
+ .probe = mpiix_init_one,
+ .remove = mpiix_remove_one
+};
+
+static int __init mpiix_init(void)
+{
+ return pci_register_driver(&mpiix_pci_driver);
+}
+
+
+static void __exit mpiix_exit(void)
+{
+ pci_unregister_driver(&mpiix_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Intel MPIIX");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, mpiix);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(mpiix_init);
+module_exit(mpiix_exit);
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c
new file mode 100644
index 0000000..e3a8577
--- /dev/null
+++ b/drivers/ata/pata_netcell.c
@@ -0,0 +1,175 @@
+/*
+ * pata_netcell.c - Netcell PATA driver
+ *
+ * (c) 2006 Red Hat <alan@redhat.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_netcell"
+#define DRV_VERSION "0.1.5"
+
+/**
+ * netcell_probe_init - check for 40/80 pin
+ * @ap: Port
+ *
+ * Cables are handled by the RAID controller. Report 80 pin.
+ */
+
+static int netcell_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * netcell_probe_reset - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void netcell_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, netcell_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/* No PIO or DMA methods needed for this device */
+
+static struct scsi_host_template netcell_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ /* Special handling needed if you have sector or LBA48 limits */
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ /* Use standard CHS mapping rules */
+ .bios_param = ata_std_bios_param,
+};
+
+static const struct ata_port_operations netcell_ops = {
+ .port_disable = ata_port_disable,
+
+ /* Task file is PCI ATA format, use helpers */
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = netcell_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ /* BMDMA handling is PCI ATA format, use helpers */
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ /* Timeout handling. Special recovery hooks here */
+ .eng_timeout = ata_eng_timeout,
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ /* Generic PATA PCI ATA helpers */
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+
+/**
+ * netcell_init_one - Register Netcell ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in netcell_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int printed_version;
+ static struct ata_port_info info = {
+ .sht = &netcell_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ /* Actually we don't really care about these as the
+ firmware deals with it */
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = 0x3f, /* UDMA 133 */
+ .port_ops = &netcell_ops,
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "version " DRV_VERSION "\n");
+
+ /* Any chip specific setup/optimisation/messages here */
+ ata_pci_clear_simplex(pdev);
+
+ /* And let the library code do the work */
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id netcell_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_NETCELL, PCI_DEVICE_ID_REVOLUTION), },
+ { } /* terminate list */
+};
+
+static struct pci_driver netcell_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = netcell_pci_tbl,
+ .probe = netcell_init_one,
+ .remove = ata_pci_remove_one,
+};
+
+static int __init netcell_init(void)
+{
+ return pci_register_driver(&netcell_pci_driver);
+}
+
+static void __exit netcell_exit(void)
+{
+ pci_unregister_driver(&netcell_pci_driver);
+}
+
+module_init(netcell_init);
+module_exit(netcell_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c
new file mode 100644
index 0000000..93d6646
--- /dev/null
+++ b/drivers/ata/pata_ns87410.c
@@ -0,0 +1,236 @@
+/*
+ * pata_ns87410.c - National Semiconductor 87410 PATA for new ATA layer
+ * (C) 2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_ns87410"
+#define DRV_VERSION "0.4.2"
+
+/**
+ * ns87410_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int ns87410_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static const struct pci_bits ns87410_enable_bits[] = {
+ { 0x43, 1, 0x08, 0x08 },
+ { 0x47, 1, 0x08, 0x08 }
+ };
+
+ if (!pci_test_config_bits(pdev, &ns87410_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * ns87410_error_handler - probe reset
+ * @ap: ATA port
+ *
+ * Perform the ATA probe and bus reset sequence plus specific handling
+ * for this hardware. The MPIIX has the enable bits in a different place
+ * to PIIX4 and friends. As a pure PIO device it has no cable detect
+ */
+
+static void ns87410_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, ns87410_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * ns87410_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program timing data. This is kept per channel not per device,
+ * and only affects the data port.
+ */
+
+static void ns87410_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int port = 0x40 + 4 * ap->port_no;
+ u8 idetcr, idefr;
+ struct ata_timing at;
+
+ static const u8 activebits[15] = {
+ 0, 1, 2, 3, 4,
+ 5, 5, 6, 6, 6,
+ 6, 7, 7, 7, 7
+ };
+
+ static const u8 recoverbits[12] = {
+ 0, 1, 2, 3, 4, 5, 6, 6, 7, 7, 7, 7
+ };
+
+ pci_read_config_byte(pdev, port + 3, &idefr);
+
+ if (ata_pio_need_iordy(adev))
+ idefr |= 0x04; /* IORDY enable */
+ else
+ idefr &= ~0x04;
+
+ if (ata_timing_compute(adev, adev->pio_mode, &at, 30303, 1) < 0) {
+ dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", adev->pio_mode);
+ return;
+ }
+
+ at.active = FIT(at.active, 2, 16) - 2;
+ at.setup = FIT(at.setup, 1, 4) - 1;
+ at.recover = FIT(at.recover, 1, 12) - 1;
+
+ idetcr = (at.setup << 6) | (recoverbits[at.recover] << 3) | activebits[at.active];
+
+ pci_write_config_byte(pdev, port, idetcr);
+ pci_write_config_byte(pdev, port + 3, idefr);
+ /* We use ap->private_data as a pointer to the device currently
+ loaded for timing */
+ ap->private_data = adev;
+}
+
+/**
+ * ns87410_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings if
+ * neccessary.
+ */
+
+static unsigned int ns87410_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+
+ /* If modes have been configured and the channel data is not loaded
+ then load it. We have to check if pio_mode is set as the core code
+ does not set adev->pio_mode to XFER_PIO_0 while probing as would be
+ logical */
+
+ if (adev->pio_mode && adev != ap->private_data)
+ ns87410_set_piomode(ap, adev);
+
+ return ata_qc_issue_prot(qc);
+}
+
+static struct scsi_host_template ns87410_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations ns87410_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = ns87410_set_piomode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ns87410_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ns87410_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int ns87410_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &ns87410_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x0F,
+ .port_ops = &ns87410_port_ops
+ };
+ static struct ata_port_info *port_info[2] = {&info, &info};
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static const struct pci_device_id ns87410[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410), },
+ { 0, },
+};
+
+static struct pci_driver ns87410_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = ns87410,
+ .probe = ns87410_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init ns87410_init(void)
+{
+ return pci_register_driver(&ns87410_pci_driver);
+}
+
+
+static void __exit ns87410_exit(void)
+{
+ pci_unregister_driver(&ns87410_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Nat Semi 87410");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, ns87410);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(ns87410_init);
+module_exit(ns87410_exit);
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c
new file mode 100644
index 0000000..04c618a
--- /dev/null
+++ b/drivers/ata/pata_oldpiix.c
@@ -0,0 +1,339 @@
+/*
+ * pata_oldpiix.c - Intel PATA/SATA controllers
+ *
+ * (C) 2005 Red Hat <alan@redhat.com>
+ *
+ * Some parts based on ata_piix.c by Jeff Garzik and others.
+ *
+ * Early PIIX differs significantly from the later PIIX as it lacks
+ * SITRE and the slave timing registers. This means that you have to
+ * set timing per channel, or be clever. Libata tells us whenever it
+ * does drive selection and we use this to reload the timings.
+ *
+ * Because of these behaviour differences PIIX gets its own driver module.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_oldpiix"
+#define DRV_VERSION "0.5.1"
+
+/**
+ * oldpiix_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int oldpiix_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static const struct pci_bits oldpiix_enable_bits[] = {
+ { 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */
+ { 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */
+ };
+
+ if (!pci_test_config_bits(pdev, &oldpiix_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * oldpiix_pata_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ * @classes:
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void oldpiix_pata_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, oldpiix_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * oldpiix_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set PIO mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void oldpiix_set_piomode (struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio = adev->pio_mode - XFER_PIO_0;
+ struct pci_dev *dev = to_pci_dev(ap->host->dev);
+ unsigned int idetm_port= ap->port_no ? 0x42 : 0x40;
+ u16 idetm_data;
+ int control = 0;
+
+ /*
+ * See Intel Document 298600-004 for the timing programing rules
+ * for PIIX/ICH. Note that the early PIIX does not have the slave
+ * timing port at 0x44.
+ */
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ if (pio > 2)
+ control |= 1; /* TIME1 enable */
+ if (ata_pio_need_iordy(adev))
+ control |= 2; /* IE IORDY */
+
+ /* Intel specifies that the PPE functionality is for disk only */
+ if (adev->class == ATA_DEV_ATA)
+ control |= 4; /* PPE enable */
+
+ pci_read_config_word(dev, idetm_port, &idetm_data);
+
+ /* Enable PPE, IE and TIME as appropriate. Clear the other
+ drive timing bits */
+ if (adev->devno == 0) {
+ idetm_data &= 0xCCE0;
+ idetm_data |= control;
+ } else {
+ idetm_data &= 0xCC0E;
+ idetm_data |= (control << 4);
+ }
+ idetm_data |= (timings[pio][0] << 12) |
+ (timings[pio][1] << 8);
+ pci_write_config_word(dev, idetm_port, idetm_data);
+
+ /* Track which port is configured */
+ ap->private_data = adev;
+}
+
+/**
+ * oldpiix_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ * @isich: True if the device is an ICH and has IOCFG registers
+ *
+ * Set MWDMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void oldpiix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *dev = to_pci_dev(ap->host->dev);
+ u8 idetm_port = ap->port_no ? 0x42 : 0x40;
+ u16 idetm_data;
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ /*
+ * MWDMA is driven by the PIO timings. We must also enable
+ * IORDY unconditionally along with TIME1. PPE has already
+ * been set when the PIO timing was set.
+ */
+
+ unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
+ unsigned int control;
+ const unsigned int needed_pio[3] = {
+ XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
+ };
+ int pio = needed_pio[mwdma] - XFER_PIO_0;
+
+ pci_read_config_word(dev, idetm_port, &idetm_data);
+
+ control = 3; /* IORDY|TIME0 */
+ /* Intel specifies that the PPE functionality is for disk only */
+ if (adev->class == ATA_DEV_ATA)
+ control |= 4; /* PPE enable */
+
+ /* If the drive MWDMA is faster than it can do PIO then
+ we must force PIO into PIO0 */
+
+ if (adev->pio_mode < needed_pio[mwdma])
+ /* Enable DMA timing only */
+ control |= 8; /* PIO cycles in PIO0 */
+
+ /* Mask out the relevant control and timing bits we will load. Also
+ clear the other drive TIME register as a precaution */
+ if (adev->devno == 0) {
+ idetm_data &= 0xCCE0;
+ idetm_data |= control;
+ } else {
+ idetm_data &= 0xCC0E;
+ idetm_data |= (control << 4);
+ }
+ idetm_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8);
+ pci_write_config_word(dev, idetm_port, idetm_data);
+
+ /* Track which port is configured */
+ ap->private_data = adev;
+}
+
+/**
+ * oldpiix_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings if
+ * neccessary. Our logic also clears TIME0/TIME1 for the other device so
+ * that, even if we get this wrong, cycles to the other device will
+ * be made PIO0.
+ */
+
+static unsigned int oldpiix_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+
+ if (adev != ap->private_data) {
+ if (adev->dma_mode)
+ oldpiix_set_dmamode(ap, adev);
+ else if (adev->pio_mode)
+ oldpiix_set_piomode(ap, adev);
+ }
+ return ata_qc_issue_prot(qc);
+}
+
+
+static struct scsi_host_template oldpiix_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static const struct ata_port_operations oldpiix_pata_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = oldpiix_set_piomode,
+ .set_dmamode = oldpiix_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = oldpiix_pata_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = oldpiix_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+
+/**
+ * oldpiix_init_one - Register PIIX ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in oldpiix_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer. We probe for combined mode (sigh),
+ * and then hand over control to libata, for it to do the rest.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int oldpiix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int printed_version;
+ static struct ata_port_info info = {
+ .sht = &oldpiix_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma1-2 */
+ .port_ops = &oldpiix_pata_ops,
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "version " DRV_VERSION "\n");
+
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id oldpiix_pci_tbl[] = {
+ { PCI_DEVICE(0x8086, 0x1230), },
+ { } /* terminate list */
+};
+
+static struct pci_driver oldpiix_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = oldpiix_pci_tbl,
+ .probe = oldpiix_init_one,
+ .remove = ata_pci_remove_one,
+};
+
+static int __init oldpiix_init(void)
+{
+ return pci_register_driver(&oldpiix_pci_driver);
+}
+
+static void __exit oldpiix_exit(void)
+{
+ pci_unregister_driver(&oldpiix_pci_driver);
+}
+
+
+module_init(oldpiix_init);
+module_exit(oldpiix_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for early PIIX series controllers");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, oldpiix_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
diff --git a/drivers/ata/pata_opti.c b/drivers/ata/pata_opti.c
new file mode 100644
index 0000000..c3d0132
--- /dev/null
+++ b/drivers/ata/pata_opti.c
@@ -0,0 +1,292 @@
+/*
+ * pata_opti.c - ATI PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based on
+ * linux/drivers/ide/pci/opti621.c Version 0.7 Sept 10, 2002
+ *
+ * Copyright (C) 1996-1998 Linus Torvalds & authors (see below)
+ *
+ * Authors:
+ * Jaromir Koutek <miri@punknet.cz>,
+ * Jan Harkes <jaharkes@cwi.nl>,
+ * Mark Lord <mlord@pobox.com>
+ * Some parts of code are from ali14xx.c and from rz1000.c.
+ *
+ * Also consulted the FreeBSD prototype driver by Kevin Day to try
+ * and resolve some confusions. Further documentation can be found in
+ * Ralf Brown's interrupt list
+ *
+ * If you have other variants of the Opti range (Viper/Vendetta) please
+ * try this driver with those PCI idents and report back. For the later
+ * chips see the pata_optidma driver
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_opti"
+#define DRV_VERSION "0.2.4"
+
+enum {
+ READ_REG = 0, /* index of Read cycle timing register */
+ WRITE_REG = 1, /* index of Write cycle timing register */
+ CNTRL_REG = 3, /* index of Control register */
+ STRAP_REG = 5, /* index of Strap register */
+ MISC_REG = 6 /* index of Miscellaneous register */
+};
+
+/**
+ * opti_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int opti_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static const struct pci_bits opti_enable_bits[] = {
+ { 0x45, 1, 0x80, 0x00 },
+ { 0x40, 1, 0x08, 0x00 }
+ };
+
+ if (!pci_test_config_bits(pdev, &opti_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * opti_probe_reset - probe reset
+ * @ap: ATA port
+ *
+ * Perform the ATA probe and bus reset sequence plus specific handling
+ * for this hardware. The Opti needs little handling - we have no UDMA66
+ * capability that needs cable detection. All we must do is check the port
+ * is enabled.
+ */
+
+static void opti_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, opti_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * opti_write_reg - control register setup
+ * @ap: ATA port
+ * @value: value
+ * @reg: control register number
+ *
+ * The Opti uses magic 'trapdoor' register accesses to do configuration
+ * rather than using PCI space as other controllers do. The double inw
+ * on the error register activates configuration mode. We can then write
+ * the control register
+ */
+
+static void opti_write_reg(struct ata_port *ap, u8 val, int reg)
+{
+ unsigned long regio = ap->ioaddr.cmd_addr;
+
+ /* These 3 unlock the control register access */
+ inw(regio + 1);
+ inw(regio + 1);
+ outb(3, regio + 2);
+
+ /* Do the I/O */
+ outb(val, regio + reg);
+
+ /* Relock */
+ outb(0x83, regio + 2);
+}
+
+#if 0
+/**
+ * opti_read_reg - control register read
+ * @ap: ATA port
+ * @reg: control register number
+ *
+ * The Opti uses magic 'trapdoor' register accesses to do configuration
+ * rather than using PCI space as other controllers do. The double inw
+ * on the error register activates configuration mode. We can then read
+ * the control register
+ */
+
+static u8 opti_read_reg(struct ata_port *ap, int reg)
+{
+ unsigned long regio = ap->ioaddr.cmd_addr;
+ u8 ret;
+ inw(regio + 1);
+ inw(regio + 1);
+ outb(3, regio + 2);
+ ret = inb(regio + reg);
+ outb(0x83, regio + 2);
+}
+#endif
+
+/**
+ * opti_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup. Timing numbers are taken from
+ * the FreeBSD driver then pre computed to keep the code clean. There
+ * are two tables depending on the hardware clock speed.
+ */
+
+static void opti_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct ata_device *pair = ata_dev_pair(adev);
+ int clock;
+ int pio = adev->pio_mode - XFER_PIO_0;
+ unsigned long regio = ap->ioaddr.cmd_addr;
+ u8 addr;
+
+ /* Address table precomputed with prefetch off and a DCLK of 2 */
+ static const u8 addr_timing[2][5] = {
+ { 0x30, 0x20, 0x20, 0x10, 0x10 },
+ { 0x20, 0x20, 0x10, 0x10, 0x10 }
+ };
+ static const u8 data_rec_timing[2][5] = {
+ { 0x6B, 0x56, 0x42, 0x32, 0x31 },
+ { 0x58, 0x44, 0x32, 0x22, 0x21 }
+ };
+
+ outb(0xff, regio + 5);
+ clock = inw(regio + 5) & 1;
+
+ /*
+ * As with many controllers the address setup time is shared
+ * and must suit both devices if present.
+ */
+
+ addr = addr_timing[clock][pio];
+ if (pair) {
+ /* Hardware constraint */
+ u8 pair_addr = addr_timing[clock][pair->pio_mode - XFER_PIO_0];
+ if (pair_addr > addr)
+ addr = pair_addr;
+ }
+
+ /* Commence primary programming sequence */
+ opti_write_reg(ap, adev->devno, MISC_REG);
+ opti_write_reg(ap, data_rec_timing[clock][pio], READ_REG);
+ opti_write_reg(ap, data_rec_timing[clock][pio], WRITE_REG);
+ opti_write_reg(ap, addr, MISC_REG);
+
+ /* Programming sequence complete, override strapping */
+ opti_write_reg(ap, 0x85, CNTRL_REG);
+}
+
+static struct scsi_host_template opti_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations opti_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = opti_set_piomode,
+/* .set_dmamode = opti_set_dmamode, */
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = opti_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int opti_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &opti_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .port_ops = &opti_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+ static int printed_version;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
+
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static const struct pci_device_id opti[] = {
+ { PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C621, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { 0, },
+};
+
+static struct pci_driver opti_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = opti,
+ .probe = opti_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init opti_init(void)
+{
+ return pci_register_driver(&opti_pci_driver);
+}
+
+
+static void __exit opti_exit(void)
+{
+ pci_unregister_driver(&opti_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Opti 621/621X");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, opti);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(opti_init);
+module_exit(opti_exit);
diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c
new file mode 100644
index 0000000..800aea7
--- /dev/null
+++ b/drivers/ata/pata_optidma.c
@@ -0,0 +1,547 @@
+/*
+ * pata_optidma.c - Opti DMA PATA for new ATA layer
+ * (C) 2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * The Opti DMA controllers are related to the older PIO PCI controllers
+ * and indeed the VLB ones. The main differences are that the timing
+ * numbers are now based off PCI clocks not VLB and differ, and that
+ * MWDMA is supported.
+ *
+ * This driver should support Viper-N+, FireStar, FireStar Plus.
+ *
+ * These devices support virtual DMA for read (aka the CS5520). Later
+ * chips support UDMA33, but only if the rest of the board logic does,
+ * so you have to get this right. We don't support the virtual DMA
+ * but we do handle UDMA.
+ *
+ * Bits that are worth knowing
+ * Most control registers are shadowed into I/O registers
+ * 0x1F5 bit 0 tells you if the PCI/VLB clock is 33 or 25Mhz
+ * Virtual DMA registers *move* between rev 0x02 and rev 0x10
+ * UDMA requires a 66MHz FSB
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_optidma"
+#define DRV_VERSION "0.2.1"
+
+enum {
+ READ_REG = 0, /* index of Read cycle timing register */
+ WRITE_REG = 1, /* index of Write cycle timing register */
+ CNTRL_REG = 3, /* index of Control register */
+ STRAP_REG = 5, /* index of Strap register */
+ MISC_REG = 6 /* index of Miscellaneous register */
+};
+
+static int pci_clock; /* 0 = 33 1 = 25 */
+
+/**
+ * optidma_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int optidma_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static const struct pci_bits optidma_enable_bits = {
+ 0x40, 1, 0x08, 0x00
+ };
+
+ if (ap->port_no && !pci_test_config_bits(pdev, &optidma_enable_bits)) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * optidma_probe_reset - probe reset
+ * @ap: ATA port
+ *
+ * Perform the ATA probe and bus reset sequence plus specific handling
+ * for this hardware. The Opti needs little handling - we have no UDMA66
+ * capability that needs cable detection. All we must do is check the port
+ * is enabled.
+ */
+
+static void optidma_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, optidma_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * optidma_unlock - unlock control registers
+ * @ap: ATA port
+ *
+ * Unlock the control register block for this adapter. Registers must not
+ * be unlocked in a situation where libata might look at them.
+ */
+
+static void optidma_unlock(struct ata_port *ap)
+{
+ unsigned long regio = ap->ioaddr.cmd_addr;
+
+ /* These 3 unlock the control register access */
+ inw(regio + 1);
+ inw(regio + 1);
+ outb(3, regio + 2);
+}
+
+/**
+ * optidma_lock - issue temporary relock
+ * @ap: ATA port
+ *
+ * Re-lock the configuration register settings.
+ */
+
+static void optidma_lock(struct ata_port *ap)
+{
+ unsigned long regio = ap->ioaddr.cmd_addr;
+
+ /* Relock */
+ outb(0x83, regio + 2);
+}
+
+/**
+ * optidma_set_mode - set mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ * @mode: Mode to set
+ *
+ * Called to do the DMA or PIO mode setup. Timing numbers are all
+ * pre computed to keep the code clean. There are two tables depending
+ * on the hardware clock speed.
+ *
+ * WARNING: While we do this the IDE registers vanish. If we take an
+ * IRQ here we depend on the host set locking to avoid catastrophe.
+ */
+
+static void optidma_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mode)
+{
+ struct ata_device *pair = ata_dev_pair(adev);
+ int pio = adev->pio_mode - XFER_PIO_0;
+ int dma = adev->dma_mode - XFER_MW_DMA_0;
+ unsigned long regio = ap->ioaddr.cmd_addr;
+ u8 addr;
+
+ /* Address table precomputed with a DCLK of 2 */
+ static const u8 addr_timing[2][5] = {
+ { 0x30, 0x20, 0x20, 0x10, 0x10 },
+ { 0x20, 0x20, 0x10, 0x10, 0x10 }
+ };
+ static const u8 data_rec_timing[2][5] = {
+ { 0x59, 0x46, 0x30, 0x20, 0x20 },
+ { 0x46, 0x32, 0x20, 0x20, 0x10 }
+ };
+ static const u8 dma_data_rec_timing[2][3] = {
+ { 0x76, 0x20, 0x20 },
+ { 0x54, 0x20, 0x10 }
+ };
+
+ /* Switch from IDE to control mode */
+ optidma_unlock(ap);
+
+
+ /*
+ * As with many controllers the address setup time is shared
+ * and must suit both devices if present. FIXME: Check if we
+ * need to look at slowest of PIO/DMA mode of either device
+ */
+
+ if (mode >= XFER_MW_DMA_0)
+ addr = 0;
+ else
+ addr = addr_timing[pci_clock][pio];
+
+ if (pair) {
+ u8 pair_addr;
+ /* Hardware constraint */
+ if (pair->dma_mode)
+ pair_addr = 0;
+ else
+ pair_addr = addr_timing[pci_clock][pair->pio_mode - XFER_PIO_0];
+ if (pair_addr > addr)
+ addr = pair_addr;
+ }
+
+ /* Commence primary programming sequence */
+ /* First we load the device number into the timing select */
+ outb(adev->devno, regio + MISC_REG);
+ /* Now we load the data timings into read data/write data */
+ if (mode < XFER_MW_DMA_0) {
+ outb(data_rec_timing[pci_clock][pio], regio + READ_REG);
+ outb(data_rec_timing[pci_clock][pio], regio + WRITE_REG);
+ } else if (mode < XFER_UDMA_0) {
+ outb(dma_data_rec_timing[pci_clock][dma], regio + READ_REG);
+ outb(dma_data_rec_timing[pci_clock][dma], regio + WRITE_REG);
+ }
+ /* Finally we load the address setup into the misc register */
+ outb(addr | adev->devno, regio + MISC_REG);
+
+ /* Programming sequence complete, timing 0 dev 0, timing 1 dev 1 */
+ outb(0x85, regio + CNTRL_REG);
+
+ /* Switch back to IDE mode */
+ optidma_lock(ap);
+
+ /* Note: at this point our programming is incomplete. We are
+ not supposed to program PCI 0x43 "things we hacked onto the chip"
+ until we've done both sets of PIO/DMA timings */
+}
+
+/**
+ * optiplus_set_mode - DMA setup for Firestar Plus
+ * @ap: ATA port
+ * @adev: device
+ * @mode: desired mode
+ *
+ * The Firestar plus has additional UDMA functionality for UDMA0-2 and
+ * requires we do some additional work. Because the base work we must do
+ * is mostly shared we wrap the Firestar setup functionality in this
+ * one
+ */
+
+static void optiplus_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mode)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 udcfg;
+ u8 udslave;
+ int dev2 = 2 * adev->devno;
+ int unit = 2 * ap->port_no + adev->devno;
+ int udma = mode - XFER_UDMA_0;
+
+ pci_read_config_byte(pdev, 0x44, &udcfg);
+ if (mode <= XFER_UDMA_0) {
+ udcfg &= ~(1 << unit);
+ optidma_set_mode(ap, adev, adev->dma_mode);
+ } else {
+ udcfg |= (1 << unit);
+ if (ap->port_no) {
+ pci_read_config_byte(pdev, 0x45, &udslave);
+ udslave &= ~(0x03 << dev2);
+ udslave |= (udma << dev2);
+ pci_write_config_byte(pdev, 0x45, udslave);
+ } else {
+ udcfg &= ~(0x30 << dev2);
+ udcfg |= (udma << dev2);
+ }
+ }
+ pci_write_config_byte(pdev, 0x44, udcfg);
+}
+
+/**
+ * optidma_set_pio_mode - PIO setup callback
+ * @ap: ATA port
+ * @adev: Device
+ *
+ * The libata core provides separate functions for handling PIO and
+ * DMA programming. The architecture of the Firestar makes it easier
+ * for us to have a common function so we provide wrappers
+ */
+
+static void optidma_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
+{
+ optidma_set_mode(ap, adev, adev->pio_mode);
+}
+
+/**
+ * optidma_set_dma_mode - DMA setup callback
+ * @ap: ATA port
+ * @adev: Device
+ *
+ * The libata core provides separate functions for handling PIO and
+ * DMA programming. The architecture of the Firestar makes it easier
+ * for us to have a common function so we provide wrappers
+ */
+
+static void optidma_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
+{
+ optidma_set_mode(ap, adev, adev->dma_mode);
+}
+
+/**
+ * optiplus_set_pio_mode - PIO setup callback
+ * @ap: ATA port
+ * @adev: Device
+ *
+ * The libata core provides separate functions for handling PIO and
+ * DMA programming. The architecture of the Firestar makes it easier
+ * for us to have a common function so we provide wrappers
+ */
+
+static void optiplus_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
+{
+ optiplus_set_mode(ap, adev, adev->pio_mode);
+}
+
+/**
+ * optiplus_set_dma_mode - DMA setup callback
+ * @ap: ATA port
+ * @adev: Device
+ *
+ * The libata core provides separate functions for handling PIO and
+ * DMA programming. The architecture of the Firestar makes it easier
+ * for us to have a common function so we provide wrappers
+ */
+
+static void optiplus_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
+{
+ optiplus_set_mode(ap, adev, adev->dma_mode);
+}
+
+/**
+ * optidma_make_bits - PCI setup helper
+ * @adev: ATA device
+ *
+ * Turn the ATA device setup into PCI configuration bits
+ * for register 0x43 and return the two bits needed.
+ */
+
+static u8 optidma_make_bits43(struct ata_device *adev)
+{
+ static const u8 bits43[5] = {
+ 0, 0, 0, 1, 2
+ };
+ if (!ata_dev_enabled(adev))
+ return 0;
+ if (adev->dma_mode)
+ return adev->dma_mode - XFER_MW_DMA_0;
+ return bits43[adev->pio_mode - XFER_PIO_0];
+}
+
+/**
+ * optidma_post_set_mode - finalize PCI setup
+ * @ap: port to set up
+ *
+ * Finalise the configuration by writing the nibble of extra bits
+ * of data into the chip.
+ */
+
+static void optidma_post_set_mode(struct ata_port *ap)
+{
+ u8 r;
+ int nybble = 4 * ap->port_no;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ pci_read_config_byte(pdev, 0x43, &r);
+
+ r &= (0x0F << nybble);
+ r |= (optidma_make_bits43(&ap->device[0]) +
+ (optidma_make_bits43(&ap->device[0]) << 2)) << nybble;
+
+ pci_write_config_byte(pdev, 0x43, r);
+}
+
+static struct scsi_host_template optidma_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations optidma_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = optidma_set_pio_mode,
+ .set_dmamode = optidma_set_dma_mode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+ .error_handler = optidma_error_handler,
+ .post_set_mode = optidma_post_set_mode,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations optiplus_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = optiplus_set_pio_mode,
+ .set_dmamode = optiplus_set_dma_mode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+ .error_handler = optidma_error_handler,
+ .post_set_mode = optidma_post_set_mode,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * optiplus_with_udma - Look for UDMA capable setup
+ * @pdev; ATA controller
+ */
+
+static int optiplus_with_udma(struct pci_dev *pdev)
+{
+ u8 r;
+ int ret = 0;
+ int ioport = 0x22;
+ struct pci_dev *dev1;
+
+ /* Find function 1 */
+ dev1 = pci_get_device(0x1045, 0xC701, NULL);
+ if(dev1 == NULL)
+ return 0;
+
+ /* Rev must be >= 0x10 */
+ pci_read_config_byte(dev1, 0x08, &r);
+ if (r < 0x10)
+ goto done_nomsg;
+ /* Read the chipset system configuration to check our mode */
+ pci_read_config_byte(dev1, 0x5F, &r);
+ ioport |= (r << 8);
+ outb(0x10, ioport);
+ /* Must be 66Mhz sync */
+ if ((inb(ioport + 2) & 1) == 0)
+ goto done;
+
+ /* Check the ATA arbitration/timing is suitable */
+ pci_read_config_byte(pdev, 0x42, &r);
+ if ((r & 0x36) != 0x36)
+ goto done;
+ pci_read_config_byte(dev1, 0x52, &r);
+ if (r & 0x80) /* IDEDIR disabled */
+ ret = 1;
+done:
+ printk(KERN_WARNING "UDMA not supported in this configuration.\n");
+done_nomsg: /* Wrong chip revision */
+ pci_dev_put(dev1);
+ return ret;
+}
+
+static int optidma_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info_82c700 = {
+ .sht = &optidma_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &optidma_port_ops
+ };
+ static struct ata_port_info info_82c700_udma = {
+ .sht = &optidma_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x07,
+ .port_ops = &optiplus_port_ops
+ };
+ static struct ata_port_info *port_info[2];
+ struct ata_port_info *info = &info_82c700;
+ static int printed_version;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
+
+ /* Fixed location chipset magic */
+ inw(0x1F1);
+ inw(0x1F1);
+ pci_clock = inb(0x1F5) & 1; /* 0 = 33Mhz, 1 = 25Mhz */
+
+ if (optiplus_with_udma(dev))
+ info = &info_82c700_udma;
+
+ port_info[0] = port_info[1] = info;
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static const struct pci_device_id optidma[] = {
+ { PCI_DEVICE(0x1045, 0xD568), }, /* Opti 82C700 */
+ { 0, },
+};
+
+static struct pci_driver optidma_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = optidma,
+ .probe = optidma_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init optidma_init(void)
+{
+ return pci_register_driver(&optidma_pci_driver);
+}
+
+
+static void __exit optidma_exit(void)
+{
+ pci_unregister_driver(&optidma_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Opti Firestar/Firestar Plus");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, optidma);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(optidma_init);
+module_exit(optidma_exit);
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
new file mode 100644
index 0000000..2abe0a3
--- /dev/null
+++ b/drivers/ata/pata_pcmcia.c
@@ -0,0 +1,393 @@
+/*
+ * pata_pcmcia.c - PCMCIA PATA controller driver.
+ * Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ * PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
+ * <openembedded@hrw.one.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Heavily based upon ide-cs.c
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/ata.h>
+#include <linux/libata.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ciscode.h>
+
+
+#define DRV_NAME "pata_pcmcia"
+#define DRV_VERSION "0.2.9"
+
+/*
+ * Private data structure to glue stuff together
+ */
+
+struct ata_pcmcia_info {
+ struct pcmcia_device *pdev;
+ int ndev;
+ dev_node_t node;
+};
+
+static struct scsi_host_template pcmcia_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations pcmcia_port_ops = {
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ata_bmdma_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer_noirq,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+#define CS_CHECK(fn, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+/**
+ * pcmcia_init_one - attach a PCMCIA interface
+ * @pdev: pcmcia device
+ *
+ * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
+ * shared IRQ.
+ */
+
+static int pcmcia_init_one(struct pcmcia_device *pdev)
+{
+ struct ata_probe_ent ae;
+ struct ata_pcmcia_info *info;
+ tuple_t tuple;
+ struct {
+ unsigned short buf[128];
+ cisparse_t parse;
+ config_info_t conf;
+ cistpl_cftable_entry_t dflt;
+ } *stk = NULL;
+ cistpl_cftable_entry_t *cfg;
+ int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM;
+ unsigned long io_base, ctl_base;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (info == NULL)
+ return -ENOMEM;
+
+ /* Glue stuff together. FIXME: We may be able to get rid of info with care */
+ info->pdev = pdev;
+ pdev->priv = info;
+
+ /* Set up attributes in order to probe card and get resources */
+ pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
+ pdev->io.IOAddrLines = 3;
+ pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
+ pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ pdev->conf.Attributes = CONF_ENABLE_IRQ;
+ pdev->conf.IntType = INT_MEMORY_AND_IO;
+
+ /* Allocate resoure probing structures */
+
+ stk = kzalloc(sizeof(*stk), GFP_KERNEL);
+ if (!stk)
+ goto out1;
+
+ cfg = &stk->parse.cftable_entry;
+
+ /* Tuples we are walking */
+ tuple.TupleData = (cisdata_t *)&stk->buf;
+ tuple.TupleOffset = 0;
+ tuple.TupleDataMax = 255;
+ tuple.Attributes = 0;
+ tuple.DesiredTuple = CISTPL_CONFIG;
+
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(pdev, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(pdev, &tuple, &stk->parse));
+ pdev->conf.ConfigBase = stk->parse.config.base;
+ pdev->conf.Present = stk->parse.config.rmask[0];
+
+ /* See if we have a manufacturer identifier. Use it to set is_kme for
+ vendor quirks */
+ tuple.DesiredTuple = CISTPL_MANFID;
+ if (!pcmcia_get_first_tuple(pdev, &tuple) && !pcmcia_get_tuple_data(pdev, &tuple) && !pcmcia_parse_tuple(pdev, &tuple, &stk->parse))
+ is_kme = ((stk->parse.manfid.manf == MANFID_KME) && ((stk->parse.manfid.card == PRODID_KME_KXLC005_A) || (stk->parse.manfid.card == PRODID_KME_KXLC005_B)));
+
+ /* Not sure if this is right... look up the current Vcc */
+ CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
+/* link->conf.Vcc = stk->conf.Vcc; */
+
+ pass = io_base = ctl_base = 0;
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ tuple.Attributes = 0;
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
+
+ /* Now munch the resources looking for a suitable set */
+ while (1) {
+ if (pcmcia_get_tuple_data(pdev, &tuple) != 0)
+ goto next_entry;
+ if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0)
+ goto next_entry;
+ /* Check for matching Vcc, unless we're desperate */
+ if (!pass) {
+ if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
+ if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
+ goto next_entry;
+ } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
+ if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
+ goto next_entry;
+ }
+ }
+
+ if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
+ pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+ else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
+ pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
+
+ if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
+ cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
+ pdev->conf.ConfigIndex = cfg->index;
+ pdev->io.BasePort1 = io->win[0].base;
+ pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
+ if (!(io->flags & CISTPL_IO_16BIT))
+ pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ if (io->nwin == 2) {
+ pdev->io.NumPorts1 = 8;
+ pdev->io.BasePort2 = io->win[1].base;
+ pdev->io.NumPorts2 = (is_kme) ? 2 : 1;
+ if (pcmcia_request_io(pdev, &pdev->io) != 0)
+ goto next_entry;
+ io_base = pdev->io.BasePort1;
+ ctl_base = pdev->io.BasePort2;
+ } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
+ pdev->io.NumPorts1 = io->win[0].len;
+ pdev->io.NumPorts2 = 0;
+ if (pcmcia_request_io(pdev, &pdev->io) != 0)
+ goto next_entry;
+ io_base = pdev->io.BasePort1;
+ ctl_base = pdev->io.BasePort1 + 0x0e;
+ } else goto next_entry;
+ /* If we've got this far, we're done */
+ break;
+ }
+next_entry:
+ if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
+ memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
+ if (pass) {
+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple));
+ } else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) {
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
+ memset(&stk->dflt, 0, sizeof(stk->dflt));
+ pass++;
+ }
+ }
+
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
+
+ /* Success. Disable the IRQ nIEN line, do quirks */
+ outb(0x02, ctl_base);
+ if (is_kme)
+ outb(0x81, ctl_base + 0x01);
+
+ /* FIXME: Could be more ports at base + 0x10 but we only deal with
+ one right now */
+ if (pdev->io.NumPorts1 >= 0x20)
+ printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n");
+
+ /*
+ * Having done the PCMCIA plumbing the ATA side is relatively
+ * sane.
+ */
+
+ memset(&ae, 0, sizeof(struct ata_probe_ent));
+ INIT_LIST_HEAD(&ae.node);
+ ae.dev = &pdev->dev;
+ ae.port_ops = &pcmcia_port_ops;
+ ae.sht = &pcmcia_sht;
+ ae.n_ports = 1;
+ ae.pio_mask = 1; /* ISA so PIO 0 cycles */
+ ae.irq = pdev->irq.AssignedIRQ;
+ ae.irq_flags = SA_SHIRQ;
+ ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
+ ae.port[0].cmd_addr = io_base;
+ ae.port[0].altstatus_addr = ctl_base;
+ ae.port[0].ctl_addr = ctl_base;
+ ata_std_ports(&ae.port[0]);
+
+ if (ata_device_add(&ae) == 0)
+ goto failed;
+
+ info->ndev = 1;
+ kfree(stk);
+ return 0;
+
+cs_failed:
+ cs_error(pdev, last_fn, last_ret);
+failed:
+ kfree(stk);
+ info->ndev = 0;
+ pcmcia_disable_device(pdev);
+out1:
+ kfree(info);
+ return ret;
+}
+
+/**
+ * pcmcia_remove_one - unplug an pcmcia interface
+ * @pdev: pcmcia device
+ *
+ * A PCMCIA ATA device has been unplugged. Perform the needed
+ * cleanup. Also called on module unload for any active devices.
+ */
+
+static void pcmcia_remove_one(struct pcmcia_device *pdev)
+{
+ struct ata_pcmcia_info *info = pdev->priv;
+ struct device *dev = &pdev->dev;
+
+ if (info != NULL) {
+ /* If we have attached the device to the ATA layer, detach it */
+ if (info->ndev) {
+ struct ata_host *host = dev_get_drvdata(dev);
+ ata_host_remove(host);
+ dev_set_drvdata(dev, NULL);
+ }
+ info->ndev = 0;
+ pdev->priv = NULL;
+ }
+ pcmcia_disable_device(pdev);
+ kfree(info);
+}
+
+static struct pcmcia_device_id pcmcia_devices[] = {
+ PCMCIA_DEVICE_FUNC_ID(4),
+ PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
+ PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
+ PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),
+ PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
+ PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
+ PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
+ PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
+ PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
+ PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar */
+ PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
+ PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
+ PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
+ PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
+ PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
+ PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
+ PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
+ PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
+ PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
+ PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
+ PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
+ PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
+ PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
+ PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
+ PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
+ PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
+ PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
+ PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
+ PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
+ PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
+ PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
+ PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
+ PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
+ PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
+ PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
+ PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
+ PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
+ PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
+ PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
+ PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
+ PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
+ PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
+ PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
+ PCMCIA_DEVICE_NULL,
+};
+
+MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
+
+static struct pcmcia_driver pcmcia_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = DRV_NAME,
+ },
+ .id_table = pcmcia_devices,
+ .probe = pcmcia_init_one,
+ .remove = pcmcia_remove_one,
+};
+
+static int __init pcmcia_init(void)
+{
+ return pcmcia_register_driver(&pcmcia_driver);
+}
+
+static void __exit pcmcia_exit(void)
+{
+ pcmcia_unregister_driver(&pcmcia_driver);
+}
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(pcmcia_init);
+module_exit(pcmcia_exit);
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
new file mode 100644
index 0000000..56b8c1e
--- /dev/null
+++ b/drivers/ata/pata_pdc2027x.c
@@ -0,0 +1,869 @@
+/*
+ * Promise PATA TX2/TX4/TX2000/133 IDE driver for pdc20268 to pdc20277.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Ported to libata by:
+ * Albert Lee <albertcc@tw.ibm.com> IBM Corporation
+ *
+ * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
+ * Portions Copyright (C) 1999 Promise Technology, Inc.
+ *
+ * Author: Frank Tiernan (frankt@promise.com)
+ * Released under terms of General Public License
+ *
+ *
+ * libata documentation is available via 'make {ps|pdf}docs',
+ * as Documentation/DocBook/libata.*
+ *
+ * Hardware information only available under NDA.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <linux/libata.h>
+#include <asm/io.h>
+
+#define DRV_NAME "pata_pdc2027x"
+#define DRV_VERSION "0.74-ac3"
+#undef PDC_DEBUG
+
+#ifdef PDC_DEBUG
+#define PDPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
+#else
+#define PDPRINTK(fmt, args...)
+#endif
+
+enum {
+ PDC_UDMA_100 = 0,
+ PDC_UDMA_133 = 1,
+
+ PDC_100_MHZ = 100000000,
+ PDC_133_MHZ = 133333333,
+
+ PDC_SYS_CTL = 0x1100,
+ PDC_ATA_CTL = 0x1104,
+ PDC_GLOBAL_CTL = 0x1108,
+ PDC_CTCR0 = 0x110C,
+ PDC_CTCR1 = 0x1110,
+ PDC_BYTE_COUNT = 0x1120,
+ PDC_PLL_CTL = 0x1202,
+};
+
+static int pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+static void pdc2027x_remove_one(struct pci_dev *pdev);
+static void pdc2027x_error_handler(struct ata_port *ap);
+static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev);
+static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev);
+static void pdc2027x_post_set_mode(struct ata_port *ap);
+static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc);
+
+/*
+ * ATA Timing Tables based on 133MHz controller clock.
+ * These tables are only used when the controller is in 133MHz clock.
+ * If the controller is in 100MHz clock, the ASIC hardware will
+ * set the timing registers automatically when "set feature" command
+ * is issued to the device. However, if the controller clock is 133MHz,
+ * the following tables must be used.
+ */
+static struct pdc2027x_pio_timing {
+ u8 value0, value1, value2;
+} pdc2027x_pio_timing_tbl [] = {
+ { 0xfb, 0x2b, 0xac }, /* PIO mode 0 */
+ { 0x46, 0x29, 0xa4 }, /* PIO mode 1 */
+ { 0x23, 0x26, 0x64 }, /* PIO mode 2 */
+ { 0x27, 0x0d, 0x35 }, /* PIO mode 3, IORDY on, Prefetch off */
+ { 0x23, 0x09, 0x25 }, /* PIO mode 4, IORDY on, Prefetch off */
+};
+
+static struct pdc2027x_mdma_timing {
+ u8 value0, value1;
+} pdc2027x_mdma_timing_tbl [] = {
+ { 0xdf, 0x5f }, /* MDMA mode 0 */
+ { 0x6b, 0x27 }, /* MDMA mode 1 */
+ { 0x69, 0x25 }, /* MDMA mode 2 */
+};
+
+static struct pdc2027x_udma_timing {
+ u8 value0, value1, value2;
+} pdc2027x_udma_timing_tbl [] = {
+ { 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */
+ { 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */
+ { 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */
+ { 0x1a, 0x05, 0xcd }, /* UDMA mode 3 */
+ { 0x1a, 0x03, 0xcd }, /* UDMA mode 4 */
+ { 0x1a, 0x02, 0xcb }, /* UDMA mode 5 */
+ { 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */
+};
+
+static const struct pci_device_id pdc2027x_pci_tbl[] = {
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_100 },
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_100 },
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
+ { } /* terminate list */
+};
+
+static struct pci_driver pdc2027x_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = pdc2027x_pci_tbl,
+ .probe = pdc2027x_init_one,
+ .remove = __devexit_p(pdc2027x_remove_one),
+};
+
+static struct scsi_host_template pdc2027x_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations pdc2027x_pata100_ops = {
+ .port_disable = ata_port_disable,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .check_atapi_dma = pdc2027x_check_atapi_dma,
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_mmio_data_xfer,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = pdc2027x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_pci_host_stop,
+};
+
+static struct ata_port_operations pdc2027x_pata133_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = pdc2027x_set_piomode,
+ .set_dmamode = pdc2027x_set_dmamode,
+ .post_set_mode = pdc2027x_post_set_mode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .check_atapi_dma = pdc2027x_check_atapi_dma,
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_mmio_data_xfer,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = pdc2027x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_pci_host_stop,
+};
+
+static struct ata_port_info pdc2027x_port_info[] = {
+ /* PDC_UDMA_100 */
+ {
+ .sht = &pdc2027x_sht,
+ .flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
+ ATA_FLAG_MMIO,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = ATA_UDMA5, /* udma0-5 */
+ .port_ops = &pdc2027x_pata100_ops,
+ },
+ /* PDC_UDMA_133 */
+ {
+ .sht = &pdc2027x_sht,
+ .flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
+ ATA_FLAG_MMIO,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma0-2 */
+ .udma_mask = ATA_UDMA6, /* udma0-6 */
+ .port_ops = &pdc2027x_pata133_ops,
+ },
+};
+
+MODULE_AUTHOR("Andre Hedrick, Frank Tiernan, Albert Lee");
+MODULE_DESCRIPTION("libata driver module for Promise PDC20268 to PDC20277");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+MODULE_DEVICE_TABLE(pci, pdc2027x_pci_tbl);
+
+/**
+ * port_mmio - Get the MMIO address of PDC2027x extended registers
+ * @ap: Port
+ * @offset: offset from mmio base
+ */
+static inline void* port_mmio(struct ata_port *ap, unsigned int offset)
+{
+ return ap->host->mmio_base + ap->port_no * 0x100 + offset;
+}
+
+/**
+ * dev_mmio - Get the MMIO address of PDC2027x extended registers
+ * @ap: Port
+ * @adev: device
+ * @offset: offset from mmio base
+ */
+static inline void* dev_mmio(struct ata_port *ap, struct ata_device *adev, unsigned int offset)
+{
+ u8 adj = (adev->devno) ? 0x08 : 0x00;
+ return port_mmio(ap, offset) + adj;
+}
+
+/**
+ * pdc2027x_pata_cbl_detect - Probe host controller cable detect info
+ * @ap: Port for which cable detect info is desired
+ *
+ * Read 80c cable indicator from Promise extended register.
+ * This register is latched when the system is reset.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+static void pdc2027x_cbl_detect(struct ata_port *ap)
+{
+ u32 cgcr;
+
+ /* check cable detect results */
+ cgcr = readl(port_mmio(ap, PDC_GLOBAL_CTL));
+ if (cgcr & (1 << 26))
+ goto cbl40;
+
+ PDPRINTK("No cable or 80-conductor cable on port %d\n", ap->port_no);
+
+ ap->cbl = ATA_CBL_PATA80;
+ return;
+
+cbl40:
+ printk(KERN_INFO DRV_NAME ": 40-conductor cable detected on port %d\n", ap->port_no);
+ ap->cbl = ATA_CBL_PATA40;
+ ap->udma_mask &= ATA_UDMA_MASK_40C;
+}
+
+/**
+ * pdc2027x_port_enabled - Check PDC ATA control register to see whether the port is enabled.
+ * @ap: Port to check
+ */
+static inline int pdc2027x_port_enabled(struct ata_port *ap)
+{
+ return readb(port_mmio(ap, PDC_ATA_CTL)) & 0x02;
+}
+
+/**
+ * pdc2027x_prereset - prereset for PATA host controller
+ * @ap: Target port
+ *
+ * Probeinit including cable detection.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static int pdc2027x_prereset(struct ata_port *ap)
+{
+ /* Check whether port enabled */
+ if (!pdc2027x_port_enabled(ap)) {
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ pdc2027x_cbl_detect(ap);
+ return ata_std_prereset(ap);
+}
+
+/**
+ * pdc2027x_error_handler - Perform reset on PATA port and classify
+ * @ap: Port to reset
+ *
+ * Reset PATA phy and classify attached devices.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void pdc2027x_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, pdc2027x_prereset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * pdc2027x_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port to configure
+ * @adev: um
+ * @pio: PIO mode, 0 - 4
+ *
+ * Set PIO mode for device.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio = adev->pio_mode - XFER_PIO_0;
+ u32 ctcr0, ctcr1;
+
+ PDPRINTK("adev->pio_mode[%X]\n", adev->pio_mode);
+
+ /* Sanity check */
+ if (pio > 4) {
+ printk(KERN_ERR DRV_NAME ": Unknown pio mode [%d] ignored\n", pio);
+ return;
+
+ }
+
+ /* Set the PIO timing registers using value table for 133MHz */
+ PDPRINTK("Set pio regs... \n");
+
+ ctcr0 = readl(dev_mmio(ap, adev, PDC_CTCR0));
+ ctcr0 &= 0xffff0000;
+ ctcr0 |= pdc2027x_pio_timing_tbl[pio].value0 |
+ (pdc2027x_pio_timing_tbl[pio].value1 << 8);
+ writel(ctcr0, dev_mmio(ap, adev, PDC_CTCR0));
+
+ ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1));
+ ctcr1 &= 0x00ffffff;
+ ctcr1 |= (pdc2027x_pio_timing_tbl[pio].value2 << 24);
+ writel(ctcr1, dev_mmio(ap, adev, PDC_CTCR1));
+
+ PDPRINTK("Set pio regs done\n");
+
+ PDPRINTK("Set to pio mode[%u] \n", pio);
+}
+
+/**
+ * pdc2027x_set_dmamode - Initialize host controller PATA UDMA timings
+ * @ap: Port to configure
+ * @adev: um
+ * @udma: udma mode, XFER_UDMA_0 to XFER_UDMA_6
+ *
+ * Set UDMA mode for device.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int dma_mode = adev->dma_mode;
+ u32 ctcr0, ctcr1;
+
+ if ((dma_mode >= XFER_UDMA_0) &&
+ (dma_mode <= XFER_UDMA_6)) {
+ /* Set the UDMA timing registers with value table for 133MHz */
+ unsigned int udma_mode = dma_mode & 0x07;
+
+ if (dma_mode == XFER_UDMA_2) {
+ /*
+ * Turn off tHOLD.
+ * If tHOLD is '1', the hardware will add half clock for data hold time.
+ * This code segment seems to be no effect. tHOLD will be overwritten below.
+ */
+ ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1));
+ writel(ctcr1 & ~(1 << 7), dev_mmio(ap, adev, PDC_CTCR1));
+ }
+
+ PDPRINTK("Set udma regs... \n");
+
+ ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1));
+ ctcr1 &= 0xff000000;
+ ctcr1 |= pdc2027x_udma_timing_tbl[udma_mode].value0 |
+ (pdc2027x_udma_timing_tbl[udma_mode].value1 << 8) |
+ (pdc2027x_udma_timing_tbl[udma_mode].value2 << 16);
+ writel(ctcr1, dev_mmio(ap, adev, PDC_CTCR1));
+
+ PDPRINTK("Set udma regs done\n");
+
+ PDPRINTK("Set to udma mode[%u] \n", udma_mode);
+
+ } else if ((dma_mode >= XFER_MW_DMA_0) &&
+ (dma_mode <= XFER_MW_DMA_2)) {
+ /* Set the MDMA timing registers with value table for 133MHz */
+ unsigned int mdma_mode = dma_mode & 0x07;
+
+ PDPRINTK("Set mdma regs... \n");
+ ctcr0 = readl(dev_mmio(ap, adev, PDC_CTCR0));
+
+ ctcr0 &= 0x0000ffff;
+ ctcr0 |= (pdc2027x_mdma_timing_tbl[mdma_mode].value0 << 16) |
+ (pdc2027x_mdma_timing_tbl[mdma_mode].value1 << 24);
+
+ writel(ctcr0, dev_mmio(ap, adev, PDC_CTCR0));
+ PDPRINTK("Set mdma regs done\n");
+
+ PDPRINTK("Set to mdma mode[%u] \n", mdma_mode);
+ } else {
+ printk(KERN_ERR DRV_NAME ": Unknown dma mode [%u] ignored\n", dma_mode);
+ }
+}
+
+/**
+ * pdc2027x_post_set_mode - Set the timing registers back to correct values.
+ * @ap: Port to configure
+ *
+ * The pdc2027x hardware will look at "SET FEATURES" and change the timing registers
+ * automatically. The values set by the hardware might be incorrect, under 133Mhz PLL.
+ * This function overwrites the possibly incorrect values set by the hardware to be correct.
+ */
+static void pdc2027x_post_set_mode(struct ata_port *ap)
+{
+ int i;
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ struct ata_device *dev = &ap->device[i];
+
+ if (ata_dev_enabled(dev)) {
+
+ pdc2027x_set_piomode(ap, dev);
+
+ /*
+ * Enable prefetch if the device support PIO only.
+ */
+ if (dev->xfer_shift == ATA_SHIFT_PIO) {
+ u32 ctcr1 = readl(dev_mmio(ap, dev, PDC_CTCR1));
+ ctcr1 |= (1 << 25);
+ writel(ctcr1, dev_mmio(ap, dev, PDC_CTCR1));
+
+ PDPRINTK("Turn on prefetch\n");
+ } else {
+ pdc2027x_set_dmamode(ap, dev);
+ }
+ }
+ }
+}
+
+/**
+ * pdc2027x_check_atapi_dma - Check whether ATAPI DMA can be supported for this command
+ * @qc: Metadata associated with taskfile to check
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ *
+ * RETURNS: 0 when ATAPI DMA can be used
+ * 1 otherwise
+ */
+static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *cmd = qc->scsicmd;
+ u8 *scsicmd = cmd->cmnd;
+ int rc = 1; /* atapi dma off by default */
+
+ /*
+ * This workaround is from Promise's GPL driver.
+ * If ATAPI DMA is used for commands not in the
+ * following white list, say MODE_SENSE and REQUEST_SENSE,
+ * pdc2027x might hit the irq lost problem.
+ */
+ switch (scsicmd[0]) {
+ case READ_10:
+ case WRITE_10:
+ case READ_12:
+ case WRITE_12:
+ case READ_6:
+ case WRITE_6:
+ case 0xad: /* READ_DVD_STRUCTURE */
+ case 0xbe: /* READ_CD */
+ /* ATAPI DMA is ok */
+ rc = 0;
+ break;
+ default:
+ ;
+ }
+
+ return rc;
+}
+
+/**
+ * pdc_read_counter - Read the ctr counter
+ * @probe_ent: for the port address
+ */
+
+static long pdc_read_counter(struct ata_probe_ent *probe_ent)
+{
+ long counter;
+ int retry = 1;
+ u32 bccrl, bccrh, bccrlv, bccrhv;
+
+retry:
+ bccrl = readl(probe_ent->mmio_base + PDC_BYTE_COUNT) & 0xffff;
+ bccrh = readl(probe_ent->mmio_base + PDC_BYTE_COUNT + 0x100) & 0xffff;
+ rmb();
+
+ /* Read the counter values again for verification */
+ bccrlv = readl(probe_ent->mmio_base + PDC_BYTE_COUNT) & 0xffff;
+ bccrhv = readl(probe_ent->mmio_base + PDC_BYTE_COUNT + 0x100) & 0xffff;
+ rmb();
+
+ counter = (bccrh << 15) | bccrl;
+
+ PDPRINTK("bccrh [%X] bccrl [%X]\n", bccrh, bccrl);
+ PDPRINTK("bccrhv[%X] bccrlv[%X]\n", bccrhv, bccrlv);
+
+ /*
+ * The 30-bit decreasing counter are read by 2 pieces.
+ * Incorrect value may be read when both bccrh and bccrl are changing.
+ * Ex. When 7900 decrease to 78FF, wrong value 7800 might be read.
+ */
+ if (retry && !(bccrh == bccrhv && bccrl >= bccrlv)) {
+ retry--;
+ PDPRINTK("rereading counter\n");
+ goto retry;
+ }
+
+ return counter;
+}
+
+/**
+ * adjust_pll - Adjust the PLL input clock in Hz.
+ *
+ * @pdc_controller: controller specific information
+ * @probe_ent: For the port address
+ * @pll_clock: The input of PLL in HZ
+ */
+static void pdc_adjust_pll(struct ata_probe_ent *probe_ent, long pll_clock, unsigned int board_idx)
+{
+
+ u16 pll_ctl;
+ long pll_clock_khz = pll_clock / 1000;
+ long pout_required = board_idx? PDC_133_MHZ:PDC_100_MHZ;
+ long ratio = pout_required / pll_clock_khz;
+ int F, R;
+
+ /* Sanity check */
+ if (unlikely(pll_clock_khz < 5000L || pll_clock_khz > 70000L)) {
+ printk(KERN_ERR DRV_NAME ": Invalid PLL input clock %ldkHz, give up!\n", pll_clock_khz);
+ return;
+ }
+
+#ifdef PDC_DEBUG
+ PDPRINTK("pout_required is %ld\n", pout_required);
+
+ /* Show the current clock value of PLL control register
+ * (maybe already configured by the firmware)
+ */
+ pll_ctl = readw(probe_ent->mmio_base + PDC_PLL_CTL);
+
+ PDPRINTK("pll_ctl[%X]\n", pll_ctl);
+#endif
+
+ /*
+ * Calculate the ratio of F, R and OD
+ * POUT = (F + 2) / (( R + 2) * NO)
+ */
+ if (ratio < 8600L) { /* 8.6x */
+ /* Using NO = 0x01, R = 0x0D */
+ R = 0x0d;
+ } else if (ratio < 12900L) { /* 12.9x */
+ /* Using NO = 0x01, R = 0x08 */
+ R = 0x08;
+ } else if (ratio < 16100L) { /* 16.1x */
+ /* Using NO = 0x01, R = 0x06 */
+ R = 0x06;
+ } else if (ratio < 64000L) { /* 64x */
+ R = 0x00;
+ } else {
+ /* Invalid ratio */
+ printk(KERN_ERR DRV_NAME ": Invalid ratio %ld, give up!\n", ratio);
+ return;
+ }
+
+ F = (ratio * (R+2)) / 1000 - 2;
+
+ if (unlikely(F < 0 || F > 127)) {
+ /* Invalid F */
+ printk(KERN_ERR DRV_NAME ": F[%d] invalid!\n", F);
+ return;
+ }
+
+ PDPRINTK("F[%d] R[%d] ratio*1000[%ld]\n", F, R, ratio);
+
+ pll_ctl = (R << 8) | F;
+
+ PDPRINTK("Writing pll_ctl[%X]\n", pll_ctl);
+
+ writew(pll_ctl, probe_ent->mmio_base + PDC_PLL_CTL);
+ readw(probe_ent->mmio_base + PDC_PLL_CTL); /* flush */
+
+ /* Wait the PLL circuit to be stable */
+ mdelay(30);
+
+#ifdef PDC_DEBUG
+ /*
+ * Show the current clock value of PLL control register
+ * (maybe configured by the firmware)
+ */
+ pll_ctl = readw(probe_ent->mmio_base + PDC_PLL_CTL);
+
+ PDPRINTK("pll_ctl[%X]\n", pll_ctl);
+#endif
+
+ return;
+}
+
+/**
+ * detect_pll_input_clock - Detect the PLL input clock in Hz.
+ * @probe_ent: for the port address
+ * Ex. 16949000 on 33MHz PCI bus for pdc20275.
+ * Half of the PCI clock.
+ */
+static long pdc_detect_pll_input_clock(struct ata_probe_ent *probe_ent)
+{
+ u32 scr;
+ long start_count, end_count;
+ long pll_clock;
+
+ /* Read current counter value */
+ start_count = pdc_read_counter(probe_ent);
+
+ /* Start the test mode */
+ scr = readl(probe_ent->mmio_base + PDC_SYS_CTL);
+ PDPRINTK("scr[%X]\n", scr);
+ writel(scr | (0x01 << 14), probe_ent->mmio_base + PDC_SYS_CTL);
+ readl(probe_ent->mmio_base + PDC_SYS_CTL); /* flush */
+
+ /* Let the counter run for 100 ms. */
+ mdelay(100);
+
+ /* Read the counter values again */
+ end_count = pdc_read_counter(probe_ent);
+
+ /* Stop the test mode */
+ scr = readl(probe_ent->mmio_base + PDC_SYS_CTL);
+ PDPRINTK("scr[%X]\n", scr);
+ writel(scr & ~(0x01 << 14), probe_ent->mmio_base + PDC_SYS_CTL);
+ readl(probe_ent->mmio_base + PDC_SYS_CTL); /* flush */
+
+ /* calculate the input clock in Hz */
+ pll_clock = (start_count - end_count) * 10;
+
+ PDPRINTK("start[%ld] end[%ld] \n", start_count, end_count);
+ PDPRINTK("PLL input clock[%ld]Hz\n", pll_clock);
+
+ return pll_clock;
+}
+
+/**
+ * pdc_hardware_init - Initialize the hardware.
+ * @pdev: instance of pci_dev found
+ * @pdc_controller: controller specific information
+ * @pe: for the port address
+ */
+static int pdc_hardware_init(struct pci_dev *pdev, struct ata_probe_ent *pe, unsigned int board_idx)
+{
+ long pll_clock;
+
+ /*
+ * Detect PLL input clock rate.
+ * On some system, where PCI bus is running at non-standard clock rate.
+ * Ex. 25MHz or 40MHz, we have to adjust the cycle_time.
+ * The pdc20275 controller employs PLL circuit to help correct timing registers setting.
+ */
+ pll_clock = pdc_detect_pll_input_clock(pe);
+
+ if (pll_clock < 0) /* counter overflow? Try again. */
+ pll_clock = pdc_detect_pll_input_clock(pe);
+
+ dev_printk(KERN_INFO, &pdev->dev, "PLL input clock %ld kHz\n", pll_clock/1000);
+
+ /* Adjust PLL control register */
+ pdc_adjust_pll(pe, pll_clock, board_idx);
+
+ return 0;
+}
+
+/**
+ * pdc_ata_setup_port - setup the mmio address
+ * @port: ata ioports to setup
+ * @base: base address
+ */
+static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base)
+{
+ port->cmd_addr =
+ port->data_addr = base;
+ port->feature_addr =
+ port->error_addr = base + 0x05;
+ port->nsect_addr = base + 0x0a;
+ port->lbal_addr = base + 0x0f;
+ port->lbam_addr = base + 0x10;
+ port->lbah_addr = base + 0x15;
+ port->device_addr = base + 0x1a;
+ port->command_addr =
+ port->status_addr = base + 0x1f;
+ port->altstatus_addr =
+ port->ctl_addr = base + 0x81a;
+}
+
+/**
+ * pdc2027x_init_one - PCI probe function
+ * Called when an instance of PCI adapter is inserted.
+ * This function checks whether the hardware is supported,
+ * initialize hardware and register an instance of ata_host to
+ * libata by providing struct ata_probe_ent and ata_device_add().
+ * (implements struct pci_driver.probe() )
+ *
+ * @pdev: instance of pci_dev found
+ * @ent: matching entry in the id_tbl[]
+ */
+static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int printed_version;
+ unsigned int board_idx = (unsigned int) ent->driver_data;
+
+ struct ata_probe_ent *probe_ent = NULL;
+ unsigned long base;
+ void *mmio_base;
+ int rc;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+
+ rc = pci_enable_device(pdev);
+ if (rc)
+ return rc;
+
+ rc = pci_request_regions(pdev, DRV_NAME);
+ if (rc)
+ goto err_out;
+
+ rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+ if (rc)
+ goto err_out_regions;
+
+ rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+ if (rc)
+ goto err_out_regions;
+
+ /* Prepare the probe entry */
+ probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
+ if (probe_ent == NULL) {
+ rc = -ENOMEM;
+ goto err_out_regions;
+ }
+
+ probe_ent->dev = pci_dev_to_dev(pdev);
+ INIT_LIST_HEAD(&probe_ent->node);
+
+ mmio_base = pci_iomap(pdev, 5, 0);
+ if (!mmio_base) {
+ rc = -ENOMEM;
+ goto err_out_free_ent;
+ }
+
+ base = (unsigned long) mmio_base;
+
+ probe_ent->sht = pdc2027x_port_info[board_idx].sht;
+ probe_ent->port_flags = pdc2027x_port_info[board_idx].flags;
+ probe_ent->pio_mask = pdc2027x_port_info[board_idx].pio_mask;
+ probe_ent->mwdma_mask = pdc2027x_port_info[board_idx].mwdma_mask;
+ probe_ent->udma_mask = pdc2027x_port_info[board_idx].udma_mask;
+ probe_ent->port_ops = pdc2027x_port_info[board_idx].port_ops;
+
+ probe_ent->irq = pdev->irq;
+ probe_ent->irq_flags = SA_SHIRQ;
+ probe_ent->mmio_base = mmio_base;
+
+ pdc_ata_setup_port(&probe_ent->port[0], base + 0x17c0);
+ probe_ent->port[0].bmdma_addr = base + 0x1000;
+ pdc_ata_setup_port(&probe_ent->port[1], base + 0x15c0);
+ probe_ent->port[1].bmdma_addr = base + 0x1008;
+
+ probe_ent->n_ports = 2;
+
+ pci_set_master(pdev);
+ //pci_enable_intx(pdev);
+
+ /* initialize adapter */
+ if (pdc_hardware_init(pdev, probe_ent, board_idx) != 0)
+ goto err_out_free_ent;
+
+ ata_device_add(probe_ent);
+ kfree(probe_ent);
+
+ return 0;
+
+err_out_free_ent:
+ kfree(probe_ent);
+err_out_regions:
+ pci_release_regions(pdev);
+err_out:
+ pci_disable_device(pdev);
+ return rc;
+}
+
+/**
+ * pdc2027x_remove_one - Called to remove a single instance of the
+ * adapter.
+ *
+ * @dev: The PCI device to remove.
+ * FIXME: module load/unload not working yet
+ */
+static void __devexit pdc2027x_remove_one(struct pci_dev *pdev)
+{
+ ata_pci_remove_one(pdev);
+}
+
+/**
+ * pdc2027x_init - Called after this module is loaded into the kernel.
+ */
+static int __init pdc2027x_init(void)
+{
+ return pci_module_init(&pdc2027x_pci_driver);
+}
+
+/**
+ * pdc2027x_exit - Called before this module unloaded from the kernel
+ */
+static void __exit pdc2027x_exit(void)
+{
+ pci_unregister_driver(&pdc2027x_pci_driver);
+}
+
+module_init(pdc2027x_init);
+module_exit(pdc2027x_exit);
diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
new file mode 100644
index 0000000..6cb52b0
--- /dev/null
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -0,0 +1,423 @@
+/*
+ * pata_pdc202xx_old.c - Promise PDC202xx PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based in part on linux/drivers/ide/pci/pdc202xx_old.c
+ *
+ * First cut with LBA48/ATAPI
+ *
+ * TODO:
+ * Channel interlock/reset on both required ?
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_pdc202xx_old"
+#define DRV_VERSION "0.2.1"
+
+/**
+ * pdc2024x_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int pdc2024x_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+
+static void pdc2024x_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, pdc2024x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+
+static int pdc2026x_pre_reset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u16 cis;
+
+ pci_read_config_word(pdev, 0x50, &cis);
+ if (cis & (1 << (10 + ap->port_no)))
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
+
+ return ata_std_prereset(ap);
+}
+
+static void pdc2026x_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, pdc2026x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * pdc_configure_piomode - set chip PIO timing
+ * @ap: ATA interface
+ * @adev: ATA device
+ * @pio: PIO mode
+ *
+ * Called to do the PIO mode setup. Our timing registers are shared
+ * so a configure_dmamode call will undo any work we do here and vice
+ * versa
+ */
+
+static void pdc_configure_piomode(struct ata_port *ap, struct ata_device *adev, int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int port = 0x60 + 4 * ap->port_no + 2 * adev->devno;
+ static u16 pio_timing[5] = {
+ 0x0913, 0x050C , 0x0308, 0x0206, 0x0104
+ };
+ u8 r_ap, r_bp;
+
+ pci_read_config_byte(pdev, port, &r_ap);
+ pci_read_config_byte(pdev, port + 1, &r_bp);
+ r_ap &= ~0x3F; /* Preserve ERRDY_EN, SYNC_IN */
+ r_bp &= ~0x07;
+ r_ap |= (pio_timing[pio] >> 8);
+ r_bp |= (pio_timing[pio] & 0xFF);
+
+ if (ata_pio_need_iordy(adev))
+ r_ap |= 0x20; /* IORDY enable */
+ if (adev->class == ATA_DEV_ATA)
+ r_ap |= 0x10; /* FIFO enable */
+ pci_write_config_byte(pdev, port, r_ap);
+ pci_write_config_byte(pdev, port + 1, r_bp);
+}
+
+/**
+ * pdc_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup. Our timing registers are shared
+ * but we want to set the PIO timing by default.
+ */
+
+static void pdc_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ pdc_configure_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
+}
+
+/**
+ * pdc_configure_dmamode - set DMA mode in chip
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Load DMA cycle times into the chip ready for a DMA transfer
+ * to occur.
+ */
+
+static void pdc_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int port = 0x60 + 4 * ap->port_no + 2 * adev->devno;
+ static u8 udma_timing[6][2] = {
+ { 0x60, 0x03 }, /* 33 Mhz Clock */
+ { 0x40, 0x02 },
+ { 0x20, 0x01 },
+ { 0x40, 0x02 }, /* 66 Mhz Clock */
+ { 0x20, 0x01 },
+ { 0x20, 0x01 }
+ };
+ u8 r_bp, r_cp;
+
+ pci_read_config_byte(pdev, port + 1, &r_bp);
+ pci_read_config_byte(pdev, port + 2, &r_cp);
+
+ r_bp &= ~0xF0;
+ r_cp &= ~0x0F;
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ int speed = adev->dma_mode - XFER_UDMA_0;
+ r_bp |= udma_timing[speed][0];
+ r_cp |= udma_timing[speed][1];
+
+ } else {
+ int speed = adev->dma_mode - XFER_MW_DMA_0;
+ r_bp |= 0x60;
+ r_cp |= (5 - speed);
+ }
+ pci_write_config_byte(pdev, port + 1, r_bp);
+ pci_write_config_byte(pdev, port + 2, r_cp);
+
+}
+
+/**
+ * pdc2026x_bmdma_start - DMA engine begin
+ * @qc: ATA command
+ *
+ * In UDMA3 or higher we have to clock switch for the duration of the
+ * DMA transfer sequence.
+ */
+
+static void pdc2026x_bmdma_start(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+ struct ata_taskfile *tf = &qc->tf;
+ int sel66 = ap->port_no ? 0x08: 0x02;
+
+ unsigned long master = ap->host->ports[0]->ioaddr.bmdma_addr;
+ unsigned long clock = master + 0x11;
+ unsigned long atapi_reg = master + 0x20 + (4 * ap->port_no);
+
+ u32 len;
+
+ /* Check we keep host level locking here */
+ if (adev->dma_mode >= XFER_UDMA_2)
+ outb(inb(clock) | sel66, clock);
+ else
+ outb(inb(clock) & ~sel66, clock);
+
+ /* The DMA clocks may have been trashed by a reset. FIXME: make conditional
+ and move to qc_issue ? */
+ pdc_set_dmamode(ap, qc->dev);
+
+ /* Cases the state machine will not complete correctly without help */
+ if ((tf->flags & ATA_TFLAG_LBA48) || tf->protocol == ATA_PROT_ATAPI_DMA)
+ {
+ if (tf->flags & ATA_TFLAG_LBA48)
+ len = qc->nsect * 512;
+ else
+ len = qc->nbytes;
+
+ if (tf->flags & ATA_TFLAG_WRITE)
+ len |= 0x06000000;
+ else
+ len |= 0x05000000;
+
+ outl(len, atapi_reg);
+ }
+
+ /* Activate DMA */
+ ata_bmdma_start(qc);
+}
+
+/**
+ * pdc2026x_bmdma_end - DMA engine stop
+ * @qc: ATA command
+ *
+ * After a DMA completes we need to put the clock back to 33MHz for
+ * PIO timings.
+ */
+
+static void pdc2026x_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+ struct ata_taskfile *tf = &qc->tf;
+
+ int sel66 = ap->port_no ? 0x08: 0x02;
+ /* The clock bits are in the same register for both channels */
+ unsigned long master = ap->host->ports[0]->ioaddr.bmdma_addr;
+ unsigned long clock = master + 0x11;
+ unsigned long atapi_reg = master + 0x20 + (4 * ap->port_no);
+
+ /* Cases the state machine will not complete correctly */
+ if (tf->protocol == ATA_PROT_ATAPI_DMA || ( tf->flags & ATA_TFLAG_LBA48)) {
+ outl(0, atapi_reg);
+ outb(inb(clock) & ~sel66, clock);
+ }
+ /* Check we keep host level locking here */
+ /* Flip back to 33Mhz for PIO */
+ if (adev->dma_mode >= XFER_UDMA_2)
+ outb(inb(clock) & ~sel66, clock);
+
+ ata_bmdma_stop(qc);
+}
+
+/**
+ * pdc2026x_dev_config - device setup hook
+ * @ap: ATA port
+ * @adev: newly found device
+ *
+ * Perform chip specific early setup. We need to lock the transfer
+ * sizes to 8bit to avoid making the state engine on the 2026x cards
+ * barf.
+ */
+
+static void pdc2026x_dev_config(struct ata_port *ap, struct ata_device *adev)
+{
+ adev->max_sectors = 256;
+}
+
+static struct scsi_host_template pdc_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations pdc2024x_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = pdc_set_piomode,
+ .set_dmamode = pdc_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = pdc2024x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations pdc2026x_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = pdc_set_piomode,
+ .set_dmamode = pdc_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+ .dev_config = pdc2026x_dev_config,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = pdc2026x_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = pdc2026x_bmdma_start,
+ .bmdma_stop = pdc2026x_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int pdc_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info[3] = {
+ {
+ .sht = &pdc_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA2,
+ .port_ops = &pdc2024x_port_ops
+ },
+ {
+ .sht = &pdc_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA4,
+ .port_ops = &pdc2026x_port_ops
+ },
+ {
+ .sht = &pdc_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA5,
+ .port_ops = &pdc2026x_port_ops
+ }
+
+ };
+ static struct ata_port_info *port_info[2];
+
+ port_info[0] = port_info[1] = &info[id->driver_data];
+
+ if (dev->device == PCI_DEVICE_ID_PROMISE_20265) {
+ struct pci_dev *bridge = dev->bus->self;
+ /* Don't grab anything behind a Promise I2O RAID */
+ if (bridge && bridge->vendor == PCI_VENDOR_ID_INTEL) {
+ if( bridge->device == PCI_DEVICE_ID_INTEL_I960)
+ return -ENODEV;
+ if( bridge->device == PCI_DEVICE_ID_INTEL_I960RM)
+ return -ENODEV;
+ }
+ }
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static struct pci_device_id pdc[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20246), 0},
+ { PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262), 1},
+ { PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20263), 1},
+ { PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265), 2},
+ { PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267), 2},
+ { 0, },
+};
+
+static struct pci_driver pdc_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = pdc,
+ .probe = pdc_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init pdc_init(void)
+{
+ return pci_register_driver(&pdc_pci_driver);
+}
+
+
+static void __exit pdc_exit(void)
+{
+ pci_unregister_driver(&pdc_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Promise 2024x and 20262-20267");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, pdc);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(pdc_init);
+module_exit(pdc_exit);
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
new file mode 100644
index 0000000..ededb40
--- /dev/null
+++ b/drivers/ata/pata_qdi.c
@@ -0,0 +1,403 @@
+/*
+ * pata_qdi.c - QDI VLB ATA controllers
+ * (C) 2006 Red Hat <alan@redhat.com>
+ *
+ * This driver mostly exists as a proof of concept for non PCI devices under
+ * libata. While the QDI6580 was 'neat' in 1993 it is no longer terribly
+ * useful.
+ *
+ * Tuning code written from the documentation at
+ * http://www.ryston.cz/petr/vlb/qd6500.html
+ * http://www.ryston.cz/petr/vlb/qd6580.html
+ *
+ * Probe code based on drivers/ide/legacy/qd65xx.c
+ * Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by
+ * Samuel Thibault <samuel.thibault@fnac.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/platform_device.h>
+
+#define DRV_NAME "pata_qdi"
+#define DRV_VERSION "0.2.4"
+
+#define NR_HOST 4 /* Two 6580s */
+
+struct qdi_data {
+ unsigned long timing;
+ u8 clock[2];
+ u8 last;
+ int fast;
+ struct platform_device *platform_dev;
+
+};
+
+static struct ata_host *qdi_host[NR_HOST];
+static struct qdi_data qdi_data[NR_HOST];
+static int nr_qdi_host;
+
+#ifdef MODULE
+static int probe_qdi = 1;
+#else
+static int probe_qdi;
+#endif
+
+static void qdi6500_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct ata_timing t;
+ struct qdi_data *qdi = ap->host->private_data;
+ int active, recovery;
+ u8 timing;
+
+ /* Get the timing data in cycles */
+ ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000);
+
+ if (qdi->fast) {
+ active = 8 - FIT(t.active, 1, 8);
+ recovery = 18 - FIT(t.recover, 3, 18);
+ } else {
+ active = 9 - FIT(t.active, 2, 9);
+ recovery = 15 - FIT(t.recover, 0, 15);
+ }
+ timing = (recovery << 4) | active | 0x08;
+
+ qdi->clock[adev->devno] = timing;
+
+ outb(timing, qdi->timing);
+}
+
+static void qdi6580_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct ata_timing t;
+ struct qdi_data *qdi = ap->host->private_data;
+ int active, recovery;
+ u8 timing;
+
+ /* Get the timing data in cycles */
+ ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000);
+
+ if (qdi->fast) {
+ active = 8 - FIT(t.active, 1, 8);
+ recovery = 18 - FIT(t.recover, 3, 18);
+ } else {
+ active = 9 - FIT(t.active, 2, 9);
+ recovery = 15 - FIT(t.recover, 0, 15);
+ }
+ timing = (recovery << 4) | active | 0x08;
+
+ qdi->clock[adev->devno] = timing;
+
+ outb(timing, qdi->timing);
+
+ /* Clear the FIFO */
+ if (adev->class != ATA_DEV_ATA)
+ outb(0x5F, (qdi->timing & 0xFFF0) + 3);
+}
+
+/**
+ * qdi_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings.
+ */
+
+static unsigned int qdi_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+ struct qdi_data *qdi = ap->host->private_data;
+
+ if (qdi->clock[adev->devno] != qdi->last) {
+ if (adev->pio_mode) {
+ qdi->last = qdi->clock[adev->devno];
+ outb(qdi->clock[adev->devno], qdi->timing);
+ }
+ }
+ return ata_qc_issue_prot(qc);
+}
+
+static void qdi_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
+{
+ struct ata_port *ap = adev->ap;
+ int slop = buflen & 3;
+
+ if (ata_id_has_dword_io(adev->id)) {
+ if (write_data)
+ outsl(ap->ioaddr.data_addr, buf, buflen >> 2);
+ else
+ insl(ap->ioaddr.data_addr, buf, buflen >> 2);
+
+ if (unlikely(slop)) {
+ u32 pad;
+ if (write_data) {
+ memcpy(&pad, buf + buflen - slop, slop);
+ outl(le32_to_cpu(pad), ap->ioaddr.data_addr);
+ } else {
+ pad = cpu_to_le16(inl(ap->ioaddr.data_addr));
+ memcpy(buf + buflen - slop, &pad, slop);
+ }
+ }
+ } else
+ ata_pio_data_xfer(adev, buf, buflen, write_data);
+}
+
+static struct scsi_host_template qdi_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations qdi6500_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = qdi6500_set_piomode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ata_bmdma_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = qdi_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = qdi_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations qdi6580_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = qdi6580_set_piomode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ata_bmdma_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = qdi_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = qdi_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * qdi_init_one - attach a qdi interface
+ * @type: Type to display
+ * @io: I/O port start
+ * @irq: interrupt line
+ * @fast: True if on a > 33Mhz VLB
+ *
+ * Register an ISA bus IDE interface. Such interfaces are PIO and we
+ * assume do not support IRQ sharing.
+ */
+
+static __init int qdi_init_one(unsigned long port, int type, unsigned long io, int irq, int fast)
+{
+ struct ata_probe_ent ae;
+ struct platform_device *pdev;
+ int ret;
+
+ unsigned long ctrl = io + 0x206;
+
+ /*
+ * Fill in a probe structure first of all
+ */
+
+ pdev = platform_device_register_simple(DRV_NAME, nr_qdi_host, NULL, 0);
+ if (pdev == NULL)
+ return -ENOMEM;
+
+ memset(&ae, 0, sizeof(struct ata_probe_ent));
+ INIT_LIST_HEAD(&ae.node);
+ ae.dev = &pdev->dev;
+
+ if (type == 6580) {
+ ae.port_ops = &qdi6580_port_ops;
+ ae.pio_mask = 0x1F;
+ } else {
+ ae.port_ops = &qdi6500_port_ops;
+ ae.pio_mask = 0x07; /* Actually PIO3 !IORDY is possible */
+ }
+
+ ae.sht = &qdi_sht;
+ ae.n_ports = 1;
+ ae.irq = irq;
+ ae.irq_flags = 0;
+ ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
+ ae.port[0].cmd_addr = io;
+ ae.port[0].altstatus_addr = ctrl;
+ ae.port[0].ctl_addr = ctrl;
+ ata_std_ports(&ae.port[0]);
+
+ /*
+ * Hook in a private data structure per channel
+ */
+ ae.private_data = &qdi_data[nr_qdi_host];
+
+ qdi_data[nr_qdi_host].timing = port;
+ qdi_data[nr_qdi_host].fast = fast;
+ qdi_data[nr_qdi_host].platform_dev = pdev;
+
+ printk(KERN_INFO DRV_NAME": qd%d at 0x%lx.\n", type, io);
+ ret = ata_device_add(&ae);
+ if (ret == 0) {
+ platform_device_unregister(pdev);
+ return -ENODEV;
+ }
+
+ qdi_host[nr_qdi_host++] = dev_get_drvdata(&pdev->dev);
+ return 0;
+}
+
+/**
+ * qdi_init - attach qdi interfaces
+ *
+ * Attach qdi IDE interfaces by scanning the ports it may occupy.
+ */
+
+static __init int qdi_init(void)
+{
+ unsigned long flags;
+ static const unsigned long qd_port[2] = { 0x30, 0xB0 };
+ static const unsigned long ide_port[2] = { 0x170, 0x1F0 };
+ static const int ide_irq[2] = { 14, 15 };
+
+ int ct = 0;
+ int i;
+
+ if (probe_qdi == 0)
+ return -ENODEV;
+
+ /*
+ * Check each possible QD65xx base address
+ */
+
+ for (i = 0; i < 2; i++) {
+ unsigned long port = qd_port[i];
+ u8 r, res;
+
+
+ if (request_region(port, 2, "pata_qdi")) {
+ /* Check for a card */
+ local_irq_save(flags);
+ r = inb_p(port);
+ outb_p(0x19, port);
+ res = inb_p(port);
+ outb_p(r, port);
+ local_irq_restore(flags);
+
+ /* Fail */
+ if (res == 0x19)
+ {
+ release_region(port, 2);
+ continue;
+ }
+
+ /* Passes the presence test */
+ r = inb_p(port + 1); /* Check port agrees with port set */
+ if ((r & 2) >> 1 != i) {
+ release_region(port, 2);
+ continue;
+ }
+
+ /* Check card type */
+ if ((r & 0xF0) == 0xC0) {
+ /* QD6500: single channel */
+ if (r & 8) {
+ /* Disabled ? */
+ release_region(port, 2);
+ continue;
+ }
+ ct += qdi_init_one(port, 6500, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04);
+ }
+ if (((r & 0xF0) == 0xA0) || (r & 0xF0) == 0x50) {
+ /* QD6580: dual channel */
+ if (!request_region(port + 2 , 2, "pata_qdi"))
+ {
+ release_region(port, 2);
+ continue;
+ }
+ res = inb(port + 3);
+ if (res & 1) {
+ /* Single channel mode */
+ ct += qdi_init_one(port, 6580, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04);
+ } else {
+ /* Dual channel mode */
+ ct += qdi_init_one(port, 6580, 0x1F0, 14, r & 0x04);
+ ct += qdi_init_one(port + 2, 6580, 0x170, 15, r & 0x04);
+ }
+ }
+ }
+ }
+ if (ct != 0)
+ return 0;
+ return -ENODEV;
+}
+
+static __exit void qdi_exit(void)
+{
+ int i;
+
+ for (i = 0; i < nr_qdi_host; i++) {
+ ata_host_remove(qdi_host[i]);
+ /* Free the control resource. The 6580 dual channel has the resources
+ * claimed as a pair of 2 byte resources so we need no special cases...
+ */
+ release_region(qdi_data[i].timing, 2);
+ platform_device_unregister(qdi_data[i].platform_dev);
+ }
+}
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for qdi ATA");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(qdi_init);
+module_exit(qdi_exit);
+
+module_param(probe_qdi, int, 0);
+
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
new file mode 100644
index 0000000..6f7d052
--- /dev/null
+++ b/drivers/ata/pata_radisys.c
@@ -0,0 +1,335 @@
+/*
+ * pata_radisys.c - Intel PATA/SATA controllers
+ *
+ * (C) 2006 Red Hat <alan@redhat.com>
+ *
+ * Some parts based on ata_piix.c by Jeff Garzik and others.
+ *
+ * A PIIX relative, this device has a single ATA channel and no
+ * slave timings, SITRE or PPE. In that sense it is a close relative
+ * of the original PIIX. It does however support UDMA 33/66 per channel
+ * although no other modes/timings. Also lacking is 32bit I/O on the ATA
+ * port.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_radisys"
+#define DRV_VERSION "0.4.1"
+
+/**
+ * radisys_probe_init - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int radisys_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA80;
+ return ata_std_prereset(ap);
+}
+
+
+/**
+ * radisys_pata_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ * @classes:
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void radisys_pata_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, radisys_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * radisys_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set PIO mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void radisys_set_piomode (struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio = adev->pio_mode - XFER_PIO_0;
+ struct pci_dev *dev = to_pci_dev(ap->host->dev);
+ u16 idetm_data;
+ int control = 0;
+
+ /*
+ * See Intel Document 298600-004 for the timing programing rules
+ * for PIIX/ICH. Note that the early PIIX does not have the slave
+ * timing port at 0x44. The Radisys is a relative of the PIIX
+ * but not the same so be careful.
+ */
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 }, /* Check me */
+ { 0, 0 },
+ { 1, 1 },
+ { 2, 2 },
+ { 3, 3 }, };
+
+ if (pio > 0)
+ control |= 1; /* TIME1 enable */
+ if (ata_pio_need_iordy(adev))
+ control |= 2; /* IE IORDY */
+
+ pci_read_config_word(dev, 0x40, &idetm_data);
+
+ /* Enable IE and TIME as appropriate. Clear the other
+ drive timing bits */
+ idetm_data &= 0xCCCC;
+ idetm_data |= (control << (4 * adev->devno));
+ idetm_data |= (timings[pio][0] << 12) |
+ (timings[pio][1] << 8);
+ pci_write_config_word(dev, 0x40, idetm_data);
+
+ /* Track which port is configured */
+ ap->private_data = adev;
+}
+
+/**
+ * radisys_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ * @isich: True if the device is an ICH and has IOCFG registers
+ *
+ * Set MWDMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void radisys_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *dev = to_pci_dev(ap->host->dev);
+ u16 idetm_data;
+ u8 udma_enable;
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 1 },
+ { 2, 2 },
+ { 3, 3 }, };
+
+ /*
+ * MWDMA is driven by the PIO timings. We must also enable
+ * IORDY unconditionally.
+ */
+
+ pci_read_config_word(dev, 0x40, &idetm_data);
+ pci_read_config_byte(dev, 0x48, &udma_enable);
+
+ if (adev->dma_mode < XFER_UDMA_0) {
+ unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
+ const unsigned int needed_pio[3] = {
+ XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
+ };
+ int pio = needed_pio[mwdma] - XFER_PIO_0;
+ int control = 3; /* IORDY|TIME0 */
+
+ /* If the drive MWDMA is faster than it can do PIO then
+ we must force PIO0 for PIO cycles. */
+
+ if (adev->pio_mode < needed_pio[mwdma])
+ control = 1;
+
+ /* Mask out the relevant control and timing bits we will load. Also
+ clear the other drive TIME register as a precaution */
+
+ idetm_data &= 0xCCCC;
+ idetm_data |= control << (4 * adev->devno);
+ idetm_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8);
+
+ udma_enable &= ~(1 << adev->devno);
+ } else {
+ u8 udma_mode;
+
+ /* UDMA66 on: UDMA 33 and 66 are switchable via register 0x4A */
+
+ pci_read_config_byte(dev, 0x4A, &udma_mode);
+
+ if (adev->xfer_mode == XFER_UDMA_2)
+ udma_mode &= ~ (1 << adev->devno);
+ else /* UDMA 4 */
+ udma_mode |= (1 << adev->devno);
+
+ pci_write_config_byte(dev, 0x4A, udma_mode);
+
+ udma_enable |= (1 << adev->devno);
+ }
+ pci_write_config_word(dev, 0x40, idetm_data);
+ pci_write_config_byte(dev, 0x48, udma_enable);
+
+ /* Track which port is configured */
+ ap->private_data = adev;
+}
+
+/**
+ * radisys_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings if
+ * neccessary. Our logic also clears TIME0/TIME1 for the other device so
+ * that, even if we get this wrong, cycles to the other device will
+ * be made PIO0.
+ */
+
+static unsigned int radisys_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+
+ if (adev != ap->private_data) {
+ /* UDMA timing is not shared */
+ if (adev->dma_mode < XFER_UDMA_0) {
+ if (adev->dma_mode)
+ radisys_set_dmamode(ap, adev);
+ else if (adev->pio_mode)
+ radisys_set_piomode(ap, adev);
+ }
+ }
+ return ata_qc_issue_prot(qc);
+}
+
+
+static struct scsi_host_template radisys_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static const struct ata_port_operations radisys_pata_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = radisys_set_piomode,
+ .set_dmamode = radisys_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = radisys_pata_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = radisys_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+
+/**
+ * radisys_init_one - Register PIIX ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in radisys_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer. We probe for combined mode (sigh),
+ * and then hand over control to libata, for it to do the rest.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int radisys_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int printed_version;
+ static struct ata_port_info info = {
+ .sht = &radisys_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07, /* mwdma1-2 */
+ .udma_mask = 0x14, /* UDMA33/66 only */
+ .port_ops = &radisys_pata_ops,
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "version " DRV_VERSION "\n");
+
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id radisys_pci_tbl[] = {
+ { 0x1331, 0x8201, PCI_ANY_ID, PCI_ANY_ID, },
+ { } /* terminate list */
+};
+
+static struct pci_driver radisys_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = radisys_pci_tbl,
+ .probe = radisys_init_one,
+ .remove = ata_pci_remove_one,
+};
+
+static int __init radisys_init(void)
+{
+ return pci_register_driver(&radisys_pci_driver);
+}
+
+static void __exit radisys_exit(void)
+{
+ pci_unregister_driver(&radisys_pci_driver);
+}
+
+
+module_init(radisys_init);
+module_exit(radisys_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for Radisys R82600 controllers");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, radisys_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c
new file mode 100644
index 0000000..3c6d84f
--- /dev/null
+++ b/drivers/ata/pata_rz1000.c
@@ -0,0 +1,205 @@
+/*
+ * RZ1000/1001 driver based upon
+ *
+ * linux/drivers/ide/pci/rz1000.c Version 0.06 January 12, 2003
+ * Copyright (C) 1995-1998 Linus Torvalds & author (see below)
+ * Principal Author: mlord@pobox.com (Mark Lord)
+ *
+ * See linux/MAINTAINERS for address of current maintainer.
+ *
+ * This file provides support for disabling the buggy read-ahead
+ * mode of the RZ1000 IDE chipset, commonly used on Intel motherboards.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_rz1000"
+#define DRV_VERSION "0.2.2"
+
+
+/**
+ * rz1000_prereset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generics
+ */
+
+static int rz1000_prereset(struct ata_port *ap)
+{
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+/**
+ * rz1000_error_handler - probe reset
+ * @ap: ATA port
+ *
+ * Perform the ATA standard reset sequence
+ */
+
+static void rz1000_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, rz1000_prereset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * rz1000_set_mode - mode setting function
+ * @ap: ATA interface
+ *
+ * Use a non standard set_mode function. We don't want to be tuned. We
+ * would prefer to be BIOS generic but for the fact our hardware is
+ * whacked out.
+ */
+
+static void rz1000_set_mode(struct ata_port *ap)
+{
+ int i;
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ struct ata_device *dev = &ap->device[i];
+ if (ata_dev_enabled(dev)) {
+ /* We don't really care */
+ dev->pio_mode = XFER_PIO_0;
+ dev->xfer_mode = XFER_PIO_0;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ dev->flags |= ATA_DFLAG_PIO;
+ }
+ }
+}
+
+
+static struct scsi_host_template rz1000_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations rz1000_port_ops = {
+ .set_mode = rz1000_set_mode,
+
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = rz1000_error_handler,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = rz1000_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * rz1000_init_one - Register RZ1000 ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in rz1000_pci_tbl matching with @pdev
+ *
+ * Configure an RZ1000 interface. This doesn't require much special
+ * handling except that we *MUST* kill the chipset readahead or the
+ * user may experience data corruption.
+ */
+
+static int rz1000_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int printed_version;
+ struct ata_port_info *port_info[2];
+ u16 reg;
+ static struct ata_port_info info = {
+ .sht = &rz1000_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .port_ops = &rz1000_port_ops
+ };
+
+ if (!printed_version++)
+ printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+
+ /* Be exceptionally paranoid as we must be sure to apply the fix */
+ if (pci_read_config_word(pdev, 0x40, ®) != 0)
+ goto fail;
+ reg &= 0xDFFF;
+ if (pci_write_config_word(pdev, 0x40, reg) != 0)
+ goto fail;
+ printk(KERN_INFO DRV_NAME ": disabled chipset readahead.\n");
+
+ port_info[0] = &info;
+ port_info[1] = &info;
+ return ata_pci_init_one(pdev, port_info, 2);
+fail:
+ printk(KERN_ERR DRV_NAME ": failed to disable read-ahead on chipset..\n");
+ /* Not safe to use so skip */
+ return -ENODEV;
+}
+
+static struct pci_device_id pata_rz1000[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000), },
+ { PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001), },
+ { 0, },
+};
+
+static struct pci_driver rz1000_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = pata_rz1000,
+ .probe = rz1000_init_one,
+ .remove = ata_pci_remove_one
+};
+
+
+static int __init rz1000_init(void)
+{
+ return pci_register_driver(&rz1000_pci_driver);
+}
+
+static void __exit rz1000_exit(void)
+{
+ pci_unregister_driver(&rz1000_pci_driver);
+}
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for RZ1000 PCI ATA");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, pata_rz1000);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(rz1000_init);
+module_exit(rz1000_exit);
+
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c
new file mode 100644
index 0000000..9b42b9a
--- /dev/null
+++ b/drivers/ata/pata_sc1200.c
@@ -0,0 +1,287 @@
+/*
+ * New ATA layer SC1200 driver Alan Cox <alan@redhat.com>
+ *
+ * TODO: Mode selection filtering
+ * TODO: Can't enable second channel until ATA core has serialize
+ * TODO: Needs custom DMA cleanup code
+ *
+ * Based very heavily on
+ *
+ * linux/drivers/ide/pci/sc1200.c Version 0.91 28-Jan-2003
+ *
+ * Copyright (C) 2000-2002 Mark Lord <mlord@pobox.com>
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * Development of this chipset driver was funded
+ * by the nice folks at National Semiconductor.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "sc1200"
+#define DRV_VERSION "0.2.3"
+
+#define SC1200_REV_A 0x00
+#define SC1200_REV_B1 0x01
+#define SC1200_REV_B3 0x02
+#define SC1200_REV_C1 0x03
+#define SC1200_REV_D1 0x04
+
+/**
+ * sc1200_clock - PCI clock
+ *
+ * Return the PCI bus clocking for the SC1200 chipset configuration
+ * in use. We return 0 for 33MHz 1 for 48MHz and 2 for 66Mhz
+ */
+
+static int sc1200_clock(void)
+{
+ /* Magic registers that give us the chipset data */
+ u8 chip_id = inb(0x903C);
+ u8 silicon_rev = inb(0x903D);
+ u16 pci_clock;
+
+ if (chip_id == 0x04 && silicon_rev < SC1200_REV_B1)
+ return 0; /* 33 MHz mode */
+
+ /* Clock generator configuration 0x901E its 8/9 are the PCI clocking
+ 0/3 is 33Mhz 1 is 48 2 is 66 */
+
+ pci_clock = inw(0x901E);
+ pci_clock >>= 8;
+ pci_clock &= 0x03;
+ if (pci_clock == 3)
+ pci_clock = 0;
+ return pci_clock;
+}
+
+/**
+ * sc1200_set_piomode - PIO setup
+ * @ap: ATA interface
+ * @adev: device on the interface
+ *
+ * Set our PIO requirements. This is fairly simple on the SC1200
+ */
+
+static void sc1200_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u32 pio_timings[4][5] = {
+ {0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010}, // format0 33Mhz
+ {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}, // format1, 33Mhz
+ {0xfaa3f4f3, 0xc23232b2, 0x513101c1, 0x31213121, 0x10211021}, // format1, 48Mhz
+ {0xfff4fff4, 0xf35353d3, 0x814102f1, 0x42314231, 0x11311131} // format1, 66Mhz
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 format;
+ unsigned int reg = 0x40 + 0x10 * ap->port_no;
+ int mode = adev->pio_mode - XFER_PIO_0;
+
+ pci_read_config_dword(pdev, reg + 4, &format);
+ format >>= 31;
+ format += sc1200_clock();
+ pci_write_config_dword(pdev, reg + 8 * adev->devno,
+ pio_timings[format][mode]);
+}
+
+/**
+ * sc1200_set_dmamode - DMA timing setup
+ * @ap: ATA interface
+ * @adev: Device being configured
+ *
+ * We cannot mix MWDMA and UDMA without reloading timings each switch
+ * master to slave.
+ */
+
+static void sc1200_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u32 udma_timing[3][3] = {
+ { 0x00921250, 0x00911140, 0x00911030 },
+ { 0x00932470, 0x00922260, 0x00922140 },
+ { 0x009436A1, 0x00933481, 0x00923261 }
+ };
+
+ static const u32 mwdma_timing[3][3] = {
+ { 0x00077771, 0x00012121, 0x00002020 },
+ { 0x000BBBB2, 0x00024241, 0x00013131 },
+ { 0x000FFFF3, 0x00035352, 0x00015151 }
+ };
+
+ int clock = sc1200_clock();
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ unsigned int reg = 0x40 + 0x10 * ap->port_no;
+ int mode = adev->dma_mode;
+ u32 format;
+
+ if (mode >= XFER_UDMA_0)
+ format = udma_timing[clock][mode - XFER_UDMA_0];
+ else
+ format = mwdma_timing[clock][mode - XFER_MW_DMA_0];
+
+ if (adev->devno == 0) {
+ u32 timings;
+
+ pci_read_config_dword(pdev, reg + 4, &timings);
+ timings &= 0x80000000UL;
+ timings |= format;
+ pci_write_config_dword(pdev, reg + 4, timings);
+ } else
+ pci_write_config_dword(pdev, reg + 12, format);
+}
+
+/**
+ * sc1200_qc_issue_prot - command issue
+ * @qc: command pending
+ *
+ * Called when the libata layer is about to issue a command. We wrap
+ * this interface so that we can load the correct ATA timings if
+ * neccessary. Specifically we have a problem that there is only
+ * one MWDMA/UDMA bit.
+ */
+
+static unsigned int sc1200_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+ struct ata_device *prev = ap->private_data;
+
+ /* See if the DMA settings could be wrong */
+ if (adev->dma_mode != 0 && adev != prev && prev != NULL) {
+ /* Maybe, but do the channels match MWDMA/UDMA ? */
+ if ((adev->dma_mode >= XFER_UDMA_0 && prev->dma_mode < XFER_UDMA_0) ||
+ (adev->dma_mode < XFER_UDMA_0 && prev->dma_mode >= XFER_UDMA_0))
+ /* Switch the mode bits */
+ sc1200_set_dmamode(ap, adev);
+ }
+
+ return ata_qc_issue_prot(qc);
+}
+
+static struct scsi_host_template sc1200_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations sc1200_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sc1200_set_piomode,
+ .set_dmamode = sc1200_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = ata_bmdma_error_handler,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = sc1200_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * sc1200_init_one - Initialise an SC1200
+ * @dev: PCI device
+ * @id: Entry in match table
+ *
+ * Just throw the needed data at the libata helper and it does all
+ * our work.
+ */
+
+static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &sc1200_sht,
+ .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x07,
+ .port_ops = &sc1200_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+
+ /* Can't enable port 2 yet, see top comments */
+ return ata_pci_init_one(dev, port_info, 1);
+}
+
+static struct pci_device_id sc1200[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_IDE), },
+ { 0, },
+};
+
+static struct pci_driver sc1200_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = sc1200,
+ .probe = sc1200_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init sc1200_init(void)
+{
+ return pci_register_driver(&sc1200_pci_driver);
+}
+
+
+static void __exit sc1200_exit(void)
+{
+ pci_unregister_driver(&sc1200_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox, Mark Lord");
+MODULE_DESCRIPTION("low-level driver for the NS/AMD SC1200");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, sc1200);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(sc1200_init);
+module_exit(sc1200_exit);
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
new file mode 100644
index 0000000..3ec3003
--- /dev/null
+++ b/drivers/ata/pata_serverworks.c
@@ -0,0 +1,587 @@
+/*
+ * ata-serverworks.c - Serverworks PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * based upon
+ *
+ * serverworks.c
+ *
+ * Copyright (C) 1998-2000 Michel Aubry
+ * Copyright (C) 1998-2000 Andrzej Krzysztofowicz
+ * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
+ * Portions copyright (c) 2001 Sun Microsystems
+ *
+ *
+ * RCC/ServerWorks IDE driver for Linux
+ *
+ * OSB4: `Open South Bridge' IDE Interface (fn 1)
+ * supports UDMA mode 2 (33 MB/s)
+ *
+ * CSB5: `Champion South Bridge' IDE Interface (fn 1)
+ * all revisions support UDMA mode 4 (66 MB/s)
+ * revision A2.0 and up support UDMA mode 5 (100 MB/s)
+ *
+ * *** The CSB5 does not provide ANY register ***
+ * *** to detect 80-conductor cable presence. ***
+ *
+ * CSB6: `Champion South Bridge' IDE Interface (optional: third channel)
+ *
+ * Documentation:
+ * Available under NDA only. Errata info very hard to get.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_serverworks"
+#define DRV_VERSION "0.3.6"
+
+#define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */
+#define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */
+
+/* Seagate Barracuda ATA IV Family drives in UDMA mode 5
+ * can overrun their FIFOs when used with the CSB5 */
+
+static const char *csb_bad_ata100[] = {
+ "ST320011A",
+ "ST340016A",
+ "ST360021A",
+ "ST380021A",
+ NULL
+};
+
+/**
+ * dell_cable - Dell serverworks cable detection
+ * @ap: ATA port to do cable detect
+ *
+ * Dell hide the 40/80 pin select for their interfaces in the top two
+ * bits of the subsystem ID.
+ */
+
+static int dell_cable(struct ata_port *ap) {
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (pdev->subsystem_device & (1 << (ap->port_no + 14)))
+ return ATA_CBL_PATA80;
+ return ATA_CBL_PATA40;
+}
+
+/**
+ * sun_cable - Sun Cobalt 'Alpine' cable detection
+ * @ap: ATA port to do cable select
+ *
+ * Cobalt CSB5 IDE hides the 40/80pin in the top two bits of the
+ * subsystem ID the same as dell. We could use one function but we may
+ * need to extend the Dell one in future
+ */
+
+static int sun_cable(struct ata_port *ap) {
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (pdev->subsystem_device & (1 << (ap->port_no + 14)))
+ return ATA_CBL_PATA80;
+ return ATA_CBL_PATA40;
+}
+
+/**
+ * osb4_cable - OSB4 cable detect
+ * @ap: ATA port to check
+ *
+ * The OSB4 isn't UDMA66 capable so this is easy
+ */
+
+static int osb4_cable(struct ata_port *ap) {
+ return ATA_CBL_PATA40;
+}
+
+/**
+ * csb4_cable - CSB5/6 cable detect
+ * @ap: ATA port to check
+ *
+ * Serverworks default arrangement is to use the drive side detection
+ * only.
+ */
+
+static int csb_cable(struct ata_port *ap) {
+ return ATA_CBL_PATA80;
+}
+
+struct sv_cable_table {
+ int device;
+ int subvendor;
+ int (*cable_detect)(struct ata_port *ap);
+};
+
+/*
+ * Note that we don't copy the old serverworks code because the old
+ * code contains obvious mistakes
+ */
+
+static struct sv_cable_table cable_detect[] = {
+ { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_DELL, dell_cable },
+ { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_VENDOR_ID_DELL, dell_cable },
+ { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_SUN, sun_cable },
+ { PCI_DEVICE_ID_SERVERWORKS_OSB4, PCI_ANY_ID, osb4_cable },
+ { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, csb_cable },
+ { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, csb_cable },
+ { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2, PCI_ANY_ID, csb_cable },
+ { PCI_DEVICE_ID_SERVERWORKS_HT1000IDE, PCI_ANY_ID, csb_cable },
+ { }
+};
+
+/**
+ * serverworks_pre_reset - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection according to the device and subvendor
+ * identifications
+ */
+
+static int serverworks_pre_reset(struct ata_port *ap) {
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct sv_cable_table *cb = cable_detect;
+
+ while(cb->device) {
+ if (cb->device == pdev->device &&
+ (cb->subvendor == pdev->subsystem_vendor ||
+ cb->subvendor == PCI_ANY_ID)) {
+ ap->cbl = cb->cable_detect(ap);
+ return ata_std_prereset(ap);
+ }
+ cb++;
+ }
+
+ BUG();
+ return -1; /* kill compiler warning */
+}
+
+static void serverworks_error_handler(struct ata_port *ap)
+{
+ return ata_bmdma_drive_eh(ap, serverworks_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * serverworks_is_csb - Check for CSB or OSB
+ * @pdev: PCI device to check
+ *
+ * Returns true if the device being checked is known to be a CSB
+ * series device.
+ */
+
+static u8 serverworks_is_csb(struct pci_dev *pdev)
+{
+ switch (pdev->device) {
+ case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
+ case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
+ case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
+ case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE:
+ return 1;
+ default:
+ break;
+ }
+ return 0;
+}
+
+/**
+ * serverworks_osb4_filter - mode selection filter
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Filter the offered modes for the device to apply controller
+ * specific rules. OSB4 requires no UDMA for disks due to a FIFO
+ * bug we hit.
+ */
+
+static unsigned long serverworks_osb4_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
+{
+ if (adev->class == ATA_DEV_ATA)
+ mask &= ~ATA_MASK_UDMA;
+ return ata_pci_default_filter(ap, adev, mask);
+}
+
+
+/**
+ * serverworks_csb_filter - mode selection filter
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Check the blacklist and disable UDMA5 if matched
+ */
+
+static unsigned long serverworks_csb_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
+{
+ const char *p;
+ char model_num[40];
+ int len, i;
+
+ /* Disk, UDMA */
+ if (adev->class != ATA_DEV_ATA)
+ return ata_pci_default_filter(ap, adev, mask);
+
+ /* Actually do need to check */
+ ata_id_string(adev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num));
+ /* Precuationary - why not do this in the libata core ?? */
+
+ len = strlen(model_num);
+ while ((len > 0) && (model_num[len - 1] == ' ')) {
+ len--;
+ model_num[len] = 0;
+ }
+
+ for(i = 0; (p = csb_bad_ata100[i]) != NULL; i++) {
+ if (!strncmp(p, model_num, len))
+ mask &= ~(0x1F << ATA_SHIFT_UDMA);
+ }
+ return ata_pci_default_filter(ap, adev, mask);
+}
+
+
+/**
+ * serverworks_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the OSB4/CSB5 timing registers for PIO. The PIO register
+ * load is done as a simple lookup.
+ */
+static void serverworks_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u8 pio_mode[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
+ int offset = 1 + (2 * ap->port_no) - adev->devno;
+ int devbits = (2 * ap->port_no + adev->devno) * 4;
+ u16 csb5_pio;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int pio = adev->pio_mode - XFER_PIO_0;
+
+ pci_write_config_byte(pdev, 0x40 + offset, pio_mode[pio]);
+
+ /* The OSB4 just requires the timing but the CSB series want the
+ mode number as well */
+ if (serverworks_is_csb(pdev)) {
+ pci_read_config_word(pdev, 0x4A, &csb5_pio);
+ csb5_pio &= ~(0x0F << devbits);
+ pci_write_config_byte(pdev, 0x4A, csb5_pio | (pio << devbits));
+ }
+}
+
+/**
+ * serverworks_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the MWDMA/UDMA modes for the serverworks OSB4/CSB5
+ * chipset. The MWDMA mode values are pulled from a lookup table
+ * while the chipset uses mode number for UDMA.
+ */
+
+static void serverworks_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static const u8 dma_mode[] = { 0x77, 0x21, 0x20 };
+ int offset = 1 + 2 * ap->port_no - adev->devno;
+ int devbits = (2 * ap->port_no + adev->devno);
+ u8 ultra;
+ u8 ultra_cfg;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ pci_read_config_byte(pdev, 0x54, &ultra_cfg);
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ pci_write_config_byte(pdev, 0x44 + offset, 0x20);
+
+ pci_read_config_byte(pdev, 0x56 + ap->port_no, &ultra);
+ ultra &= ~(0x0F << (ap->port_no * 4));
+ ultra |= (adev->dma_mode - XFER_UDMA_0)
+ << (ap->port_no * 4);
+ pci_write_config_byte(pdev, 0x56 + ap->port_no, ultra);
+
+ ultra_cfg |= (1 << devbits);
+ } else {
+ pci_write_config_byte(pdev, 0x44 + offset,
+ dma_mode[adev->dma_mode - XFER_MW_DMA_0]);
+ ultra_cfg &= ~(1 << devbits);
+ }
+ pci_write_config_byte(pdev, 0x54, ultra_cfg);
+}
+
+static struct scsi_host_template serverworks_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations serverworks_osb4_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = serverworks_set_piomode,
+ .set_dmamode = serverworks_set_dmamode,
+ .mode_filter = serverworks_osb4_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = serverworks_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations serverworks_csb_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = serverworks_set_piomode,
+ .set_dmamode = serverworks_set_dmamode,
+ .mode_filter = serverworks_csb_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = serverworks_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int serverworks_fixup_osb4(struct pci_dev *pdev)
+{
+ u32 reg;
+ struct pci_dev *isa_dev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
+ PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
+ if (isa_dev) {
+ pci_read_config_dword(isa_dev, 0x64, ®);
+ reg &= ~0x00002000; /* disable 600ns interrupt mask */
+ if (!(reg & 0x00004000))
+ printk(KERN_DEBUG DRV_NAME ": UDMA not BIOS enabled.\n");
+ reg |= 0x00004000; /* enable UDMA/33 support */
+ pci_write_config_dword(isa_dev, 0x64, reg);
+ pci_dev_put(isa_dev);
+ return 0;
+ }
+ printk(KERN_WARNING "ata_serverworks: Unable to find bridge.\n");
+ return -ENODEV;
+}
+
+static int serverworks_fixup_csb(struct pci_dev *pdev)
+{
+ u8 rev;
+ u8 btr;
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
+
+ /* Third Channel Test */
+ if (!(PCI_FUNC(pdev->devfn) & 1)) {
+ struct pci_dev * findev = NULL;
+ u32 reg4c = 0;
+ findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
+ PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL);
+ if (findev) {
+ pci_read_config_dword(findev, 0x4C, ®4c);
+ reg4c &= ~0x000007FF;
+ reg4c |= 0x00000040;
+ reg4c |= 0x00000020;
+ pci_write_config_dword(findev, 0x4C, reg4c);
+ pci_dev_put(findev);
+ }
+ } else {
+ struct pci_dev * findev = NULL;
+ u8 reg41 = 0;
+
+ findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
+ PCI_DEVICE_ID_SERVERWORKS_CSB6, NULL);
+ if (findev) {
+ pci_read_config_byte(findev, 0x41, ®41);
+ reg41 &= ~0x40;
+ pci_write_config_byte(findev, 0x41, reg41);
+ pci_dev_put(findev);
+ }
+ }
+ /* setup the UDMA Control register
+ *
+ * 1. clear bit 6 to enable DMA
+ * 2. enable DMA modes with bits 0-1
+ * 00 : legacy
+ * 01 : udma2
+ * 10 : udma2/udma4
+ * 11 : udma2/udma4/udma5
+ */
+ pci_read_config_byte(pdev, 0x5A, &btr);
+ btr &= ~0x40;
+ if (!(PCI_FUNC(pdev->devfn) & 1))
+ btr |= 0x2;
+ else
+ btr |= (rev >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
+ pci_write_config_byte(pdev, 0x5A, btr);
+
+ return btr;
+}
+
+static void serverworks_fixup_ht1000(struct pci_dev *pdev)
+{
+ u8 btr;
+ /* Setup HT1000 SouthBridge Controller - Single Channel Only */
+ pci_read_config_byte(pdev, 0x5A, &btr);
+ btr &= ~0x40;
+ btr |= 0x3;
+ pci_write_config_byte(pdev, 0x5A, btr);
+}
+
+
+static int serverworks_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ int ports = 2;
+ static struct ata_port_info info[4] = {
+ { /* OSB4 */
+ .sht = &serverworks_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x07,
+ .port_ops = &serverworks_osb4_port_ops
+ }, { /* OSB4 no UDMA */
+ .sht = &serverworks_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x00,
+ .port_ops = &serverworks_osb4_port_ops
+ }, { /* CSB5 */
+ .sht = &serverworks_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f,
+ .port_ops = &serverworks_csb_port_ops
+ }, { /* CSB5 - later revisions*/
+ .sht = &serverworks_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &serverworks_csb_port_ops
+ }
+ };
+ static struct ata_port_info *port_info[2];
+ struct ata_port_info *devinfo = &info[id->driver_data];
+
+ /* Force master latency timer to 64 PCI clocks */
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40);
+
+ /* OSB4 : South Bridge and IDE */
+ if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
+ /* Select non UDMA capable OSB4 if we can't do fixups */
+ if ( serverworks_fixup_osb4(pdev) < 0)
+ devinfo = &info[1];
+ }
+ /* setup CSB5/CSB6 : South Bridge and IDE option RAID */
+ else if ((pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ||
+ (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
+ (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
+
+ /* If the returned btr is the newer revision then
+ select the right info block */
+ if (serverworks_fixup_csb(pdev) == 3)
+ devinfo = &info[3];
+
+ /* Is this the 3rd channel CSB6 IDE ? */
+ if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)
+ ports = 1;
+ }
+ /* setup HT1000E */
+ else if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE)
+ serverworks_fixup_ht1000(pdev);
+
+ if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
+ ata_pci_clear_simplex(pdev);
+
+ port_info[0] = port_info[1] = devinfo;
+ return ata_pci_init_one(pdev, port_info, ports);
+}
+
+static struct pci_device_id serverworks[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE), 0},
+ { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE), 2},
+ { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE), 2},
+ { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2), 2},
+ { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000IDE), 2},
+ { 0, },
+};
+
+static struct pci_driver serverworks_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = serverworks,
+ .probe = serverworks_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init serverworks_init(void)
+{
+ return pci_register_driver(&serverworks_pci_driver);
+}
+
+
+static void __exit serverworks_exit(void)
+{
+ pci_unregister_driver(&serverworks_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Serverworks OSB4/CSB5/CSB6");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, serverworks);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(serverworks_init);
+module_exit(serverworks_exit);
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
new file mode 100644
index 0000000..8f7db96
--- /dev/null
+++ b/drivers/ata/pata_sil680.c
@@ -0,0 +1,381 @@
+/*
+ * pata_sil680.c - SIL680 PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * based upon
+ *
+ * linux/drivers/ide/pci/siimage.c Version 1.07 Nov 30, 2003
+ *
+ * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2003 Red Hat <alan@redhat.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * Documentation publically available.
+ *
+ * If you have strange problems with nVidia chipset systems please
+ * see the SI support documentation and update your system BIOS
+ * if neccessary
+ *
+ * TODO
+ * If we know all our devices are LBA28 (or LBA28 sized) we could use
+ * the command fifo mode.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_sil680"
+#define DRV_VERSION "0.3.2"
+
+/**
+ * sil680_selreg - return register base
+ * @hwif: interface
+ * @r: config offset
+ *
+ * Turn a config register offset into the right address in either
+ * PCI space or MMIO space to access the control register in question
+ * Thankfully this is a configuration operation so isnt performance
+ * criticial.
+ */
+
+static unsigned long sil680_selreg(struct ata_port *ap, int r)
+{
+ unsigned long base = 0xA0 + r;
+ base += (ap->port_no << 4);
+ return base;
+}
+
+/**
+ * sil680_seldev - return register base
+ * @hwif: interface
+ * @r: config offset
+ *
+ * Turn a config register offset into the right address in either
+ * PCI space or MMIO space to access the control register in question
+ * including accounting for the unit shift.
+ */
+
+static unsigned long sil680_seldev(struct ata_port *ap, struct ata_device *adev, int r)
+{
+ unsigned long base = 0xA0 + r;
+ base += (ap->port_no << 4);
+ base |= adev->devno ? 2 : 0;
+ return base;
+}
+
+
+/**
+ * sil680_cable_detect - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection. The SIL680 stores this in PCI config
+ * space for us.
+ */
+
+static int sil680_cable_detect(struct ata_port *ap) {
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ unsigned long addr = sil680_selreg(ap, 0);
+ u8 ata66;
+ pci_read_config_byte(pdev, addr, &ata66);
+ if (ata66 & 1)
+ return ATA_CBL_PATA80;
+ else
+ return ATA_CBL_PATA40;
+}
+
+static int sil680_pre_reset(struct ata_port *ap)
+{
+ ap->cbl = sil680_cable_detect(ap);
+ return ata_std_prereset(ap);
+}
+
+/**
+ * sil680_bus_reset - reset the SIL680 bus
+ * @ap: ATA port to reset
+ *
+ * Perform the SIL680 housekeeping when doing an ATA bus reset
+ */
+
+static int sil680_bus_reset(struct ata_port *ap,unsigned int *classes)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ unsigned long addr = sil680_selreg(ap, 0);
+ u8 reset;
+
+ pci_read_config_byte(pdev, addr, &reset);
+ pci_write_config_byte(pdev, addr, reset | 0x03);
+ udelay(25);
+ pci_write_config_byte(pdev, addr, reset);
+ return ata_std_softreset(ap, classes);
+}
+
+static void sil680_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, sil680_pre_reset, sil680_bus_reset, NULL, ata_std_postreset);
+}
+
+/**
+ * sil680_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the SIL680 registers for PIO mode. Note that the task speed
+ * registers are shared between the devices so we must pick the lowest
+ * mode for command work.
+ */
+
+static void sil680_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ static u16 speed_p[5] = { 0x328A, 0x2283, 0x1104, 0x10C3, 0x10C1 };
+ static u16 speed_t[5] = { 0x328A, 0x1281, 0x1281, 0x10C3, 0x10C1 };
+
+ unsigned long tfaddr = sil680_selreg(ap, 0x02);
+ unsigned long addr = sil680_seldev(ap, adev, 0x04);
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int pio = adev->pio_mode - XFER_PIO_0;
+ int lowest_pio = pio;
+ u16 reg;
+
+ struct ata_device *pair = ata_dev_pair(adev);
+
+ if (pair != NULL && adev->pio_mode > pair->pio_mode)
+ lowest_pio = pair->pio_mode - XFER_PIO_0;
+
+ pci_write_config_word(pdev, addr, speed_p[pio]);
+ pci_write_config_word(pdev, tfaddr, speed_t[lowest_pio]);
+
+ pci_read_config_word(pdev, tfaddr-2, ®);
+ reg &= ~0x0200; /* Clear IORDY */
+ if (ata_pio_need_iordy(adev))
+ reg |= 0x0200; /* Enable IORDY */
+ pci_write_config_word(pdev, tfaddr-2, reg);
+}
+
+/**
+ * sil680_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Program the MWDMA/UDMA modes for the sil680 k
+ * chipset. The MWDMA mode values are pulled from a lookup table
+ * while the chipset uses mode number for UDMA.
+ */
+
+static void sil680_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ static u8 ultra_table[2][7] = {
+ { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01, 0xFF }, /* 100MHz */
+ { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 }, /* 133Mhz */
+ };
+ static u16 dma_table[3] = { 0x2208, 0x10C2, 0x10C1 };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ unsigned long ma = sil680_seldev(ap, adev, 0x08);
+ unsigned long ua = sil680_seldev(ap, adev, 0x0C);
+ unsigned long addr_mask = 0x80 + 4 * ap->port_no;
+ int port_shift = adev->devno * 4;
+ u8 scsc, mode;
+ u16 multi, ultra;
+
+ pci_read_config_byte(pdev, 0x8A, &scsc);
+ pci_read_config_byte(pdev, addr_mask, &mode);
+ pci_read_config_word(pdev, ma, &multi);
+ pci_read_config_word(pdev, ua, &ultra);
+
+ /* Mask timing bits */
+ ultra &= ~0x3F;
+ mode &= ~(0x03 << port_shift);
+
+ /* Extract scsc */
+ scsc = (scsc & 0x30) ? 1: 0;
+
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ multi = 0x10C1;
+ ultra |= ultra_table[scsc][adev->dma_mode - XFER_UDMA_0];
+ mode |= (0x03 << port_shift);
+ } else {
+ multi = dma_table[adev->dma_mode - XFER_MW_DMA_0];
+ mode |= (0x02 << port_shift);
+ }
+ pci_write_config_byte(pdev, addr_mask, mode);
+ pci_write_config_word(pdev, ma, multi);
+ pci_write_config_word(pdev, ua, ultra);
+}
+
+static struct scsi_host_template sil680_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations sil680_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sil680_set_piomode,
+ .set_dmamode = sil680_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = sil680_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int sil680_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &sil680_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f,
+ .port_ops = &sil680_port_ops
+ };
+ static struct ata_port_info info_slow = {
+ .sht = &sil680_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &sil680_port_ops
+ };
+ static struct ata_port_info *port_info[2] = {&info, &info};
+ static int printed_version;
+ u32 class_rev = 0;
+ u8 tmpbyte = 0;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+
+ pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+ /* FIXME: double check */
+ pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255);
+
+ pci_write_config_byte(pdev, 0x80, 0x00);
+ pci_write_config_byte(pdev, 0x84, 0x00);
+
+ pci_read_config_byte(pdev, 0x8A, &tmpbyte);
+
+ printk(KERN_INFO "sil680: BA5_EN = %d clock = %02X\n",
+ tmpbyte & 1, tmpbyte & 0x30);
+
+ switch(tmpbyte & 0x30) {
+ case 0x00:
+ /* 133 clock attempt to force it on */
+ pci_write_config_byte(pdev, 0x8A, tmpbyte|0x10);
+ break;
+ case 0x30:
+ /* if clocking is disabled */
+ /* 133 clock attempt to force it on */
+ pci_write_config_byte(pdev, 0x8A, tmpbyte & ~0x20);
+ break;
+ case 0x10:
+ /* 133 already */
+ break;
+ case 0x20:
+ /* BIOS set PCI x2 clocking */
+ break;
+ }
+
+ pci_read_config_byte(pdev, 0x8A, &tmpbyte);
+ printk(KERN_INFO "sil680: BA5_EN = %d clock = %02X\n",
+ tmpbyte & 1, tmpbyte & 0x30);
+ if ((tmpbyte & 0x30) == 0)
+ port_info[0] = port_info[1] = &info_slow;
+
+ pci_write_config_byte(pdev, 0xA1, 0x72);
+ pci_write_config_word(pdev, 0xA2, 0x328A);
+ pci_write_config_dword(pdev, 0xA4, 0x62DD62DD);
+ pci_write_config_dword(pdev, 0xA8, 0x43924392);
+ pci_write_config_dword(pdev, 0xAC, 0x40094009);
+ pci_write_config_byte(pdev, 0xB1, 0x72);
+ pci_write_config_word(pdev, 0xB2, 0x328A);
+ pci_write_config_dword(pdev, 0xB4, 0x62DD62DD);
+ pci_write_config_dword(pdev, 0xB8, 0x43924392);
+ pci_write_config_dword(pdev, 0xBC, 0x40094009);
+
+ switch(tmpbyte & 0x30) {
+ case 0x00: printk(KERN_INFO "sil680: 100MHz clock.\n");break;
+ case 0x10: printk(KERN_INFO "sil680: 133MHz clock.\n");break;
+ case 0x20: printk(KERN_INFO "sil680: Using PCI clock.\n");break;
+ /* This last case is _NOT_ ok */
+ case 0x30: printk(KERN_ERR "sil680: Clock disabled ?\n");
+ return -EIO;
+ }
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id sil680[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680), },
+ { 0, },
+};
+
+static struct pci_driver sil680_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = sil680,
+ .probe = sil680_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init sil680_init(void)
+{
+ return pci_register_driver(&sil680_pci_driver);
+}
+
+
+static void __exit sil680_exit(void)
+{
+ pci_unregister_driver(&sil680_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for SI680 PATA");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, sil680);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(sil680_init);
+module_exit(sil680_exit);
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
new file mode 100644
index 0000000..4ad7fb4
--- /dev/null
+++ b/drivers/ata/pata_sis.c
@@ -0,0 +1,1030 @@
+/*
+ * pata_sis.c - SiS ATA driver
+ *
+ * (C) 2005 Red Hat <alan@redhat.com>
+ *
+ * Based upon linux/drivers/ide/pci/sis5513.c
+ * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
+ * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
+ * SiS Taiwan : for direct support and hardware.
+ * Daniela Engert : for initial ATA100 advices and numerous others.
+ * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt :
+ * for checking code correctness, providing patches.
+ * Original tests and design on the SiS620 chipset.
+ * ATA100 tests and design on the SiS735 chipset.
+ * ATA16/33 support from specs
+ * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
+ *
+ *
+ * TODO
+ * Check MWDMA on drives that don't support MWDMA speed pio cycles ?
+ * More Testing
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_sis"
+#define DRV_VERSION "0.4.2"
+
+struct sis_chipset {
+ u16 device; /* PCI host ID */
+ struct ata_port_info *info; /* Info block */
+ /* Probably add family, cable detect type etc here to clean
+ up code later */
+};
+
+/**
+ * sis_port_base - return PCI configuration base for dev
+ * @adev: device
+ *
+ * Returns the base of the PCI configuration registers for this port
+ * number.
+ */
+
+static int sis_port_base(struct ata_device *adev)
+{
+ return 0x40 + (4 * adev->ap->port_no) + (2 * adev->devno);
+}
+
+/**
+ * sis_133_pre_reset - check for 40/80 pin
+ * @ap: Port
+ *
+ * Perform cable detection for the later UDMA133 capable
+ * SiS chipset.
+ */
+
+static int sis_133_pre_reset(struct ata_port *ap)
+{
+ static const struct pci_bits sis_enable_bits[] = {
+ { 0x4aU, 1U, 0x02UL, 0x02UL }, /* port 0 */
+ { 0x4aU, 1U, 0x04UL, 0x04UL }, /* port 1 */
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u16 tmp;
+
+ if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ /* The top bit of this register is the cable detect bit */
+ pci_read_config_word(pdev, 0x50 + 2 * ap->port_no, &tmp);
+ if (tmp & 0x8000)
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+
+ return ata_std_prereset(ap);
+}
+
+/**
+ * sis_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_133_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, sis_133_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+
+/**
+ * sis_66_pre_reset - check for 40/80 pin
+ * @ap: Port
+ *
+ * Perform cable detection on the UDMA66, UDMA100 and early UDMA133
+ * SiS IDE controllers.
+ */
+
+static int sis_66_pre_reset(struct ata_port *ap)
+{
+ static const struct pci_bits sis_enable_bits[] = {
+ { 0x4aU, 1U, 0x02UL, 0x02UL }, /* port 0 */
+ { 0x4aU, 1U, 0x04UL, 0x04UL }, /* port 1 */
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 tmp;
+
+ if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ /* Older chips keep cable detect in bits 4/5 of reg 0x48 */
+ pci_read_config_byte(pdev, 0x48, &tmp);
+ tmp >>= ap->port_no;
+ if (tmp & 0x10)
+ ap->cbl = ATA_CBL_PATA40;
+ else
+ ap->cbl = ATA_CBL_PATA80;
+
+ return ata_std_prereset(ap);
+}
+
+/**
+ * sis_66_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ * @classes:
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_66_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, sis_66_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * sis_old_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int sis_old_pre_reset(struct ata_port *ap)
+{
+ static const struct pci_bits sis_enable_bits[] = {
+ { 0x4aU, 1U, 0x02UL, 0x02UL }, /* port 0 */
+ { 0x4aU, 1U, 0x04UL, 0x04UL }, /* port 1 */
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+
+/**
+ * sis_old_error_handler - Probe specified port on PATA host controller
+ * @ap: Port to probe
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_old_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, sis_old_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * sis_set_fifo - Set RWP fifo bits for this device
+ * @ap: Port
+ * @adev: Device
+ *
+ * SIS chipsets implement prefetch/postwrite bits for each device
+ * on both channels. This functionality is not ATAPI compatible and
+ * must be configured according to the class of device present
+ */
+
+static void sis_set_fifo(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 fifoctrl;
+ u8 mask = 0x11;
+
+ mask <<= (2 * ap->port_no);
+ mask <<= adev->devno;
+
+ /* This holds various bits including the FIFO control */
+ pci_read_config_byte(pdev, 0x4B, &fifoctrl);
+ fifoctrl &= ~mask;
+
+ /* Enable for ATA (disk) only */
+ if (adev->class == ATA_DEV_ATA)
+ fifoctrl |= mask;
+ pci_write_config_byte(pdev, 0x4B, fifoctrl);
+}
+
+/**
+ * sis_old_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring for.
+ *
+ * Set PIO mode for device, in host controller PCI config space. This
+ * function handles PIO set up for all chips that are pre ATA100 and
+ * also early ATA100 devices.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_old_set_piomode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int port = sis_port_base(adev);
+ u8 t1, t2;
+ int speed = adev->pio_mode - XFER_PIO_0;
+
+ const u8 active[] = { 0x00, 0x07, 0x04, 0x03, 0x01 };
+ const u8 recovery[] = { 0x00, 0x06, 0x04, 0x03, 0x03 };
+
+ sis_set_fifo(ap, adev);
+
+ pci_read_config_byte(pdev, port, &t1);
+ pci_read_config_byte(pdev, port + 1, &t2);
+
+ t1 &= ~0x0F; /* Clear active/recovery timings */
+ t2 &= ~0x07;
+
+ t1 |= active[speed];
+ t2 |= recovery[speed];
+
+ pci_write_config_byte(pdev, port, t1);
+ pci_write_config_byte(pdev, port + 1, t2);
+}
+
+/**
+ * sis_100_set_pioode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring for.
+ *
+ * Set PIO mode for device, in host controller PCI config space. This
+ * function handles PIO set up for ATA100 devices and early ATA133.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_100_set_piomode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int port = sis_port_base(adev);
+ int speed = adev->pio_mode - XFER_PIO_0;
+
+ const u8 actrec[] = { 0x00, 0x67, 0x44, 0x33, 0x31 };
+
+ sis_set_fifo(ap, adev);
+
+ pci_write_config_byte(pdev, port, actrec[speed]);
+}
+
+/**
+ * sis_133_set_pioode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring for.
+ *
+ * Set PIO mode for device, in host controller PCI config space. This
+ * function handles PIO set up for the later ATA133 devices.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_133_set_piomode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int port = 0x40;
+ u32 t1;
+ u32 reg54;
+ int speed = adev->pio_mode - XFER_PIO_0;
+
+ const u32 timing133[] = {
+ 0x28269000, /* Recovery << 24 | Act << 16 | Ini << 12 */
+ 0x0C266000,
+ 0x04263000,
+ 0x0C0A3000,
+ 0x05093000
+ };
+ const u32 timing100[] = {
+ 0x1E1C6000, /* Recovery << 24 | Act << 16 | Ini << 12 */
+ 0x091C4000,
+ 0x031C2000,
+ 0x09072000,
+ 0x04062000
+ };
+
+ sis_set_fifo(ap, adev);
+
+ /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
+ pci_read_config_dword(pdev, 0x54, ®54);
+ if (reg54 & 0x40000000)
+ port = 0x70;
+ port += 8 * ap->port_no + 4 * adev->devno;
+
+ pci_read_config_dword(pdev, port, &t1);
+ t1 &= 0xC0C00FFF; /* Mask out timing */
+
+ if (t1 & 0x08) /* 100 or 133 ? */
+ t1 |= timing133[speed];
+ else
+ t1 |= timing100[speed];
+ pci_write_config_byte(pdev, port, t1);
+}
+
+/**
+ * sis_old_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ *
+ * Set UDMA/MWDMA mode for device, in host controller PCI config space.
+ * Handles pre UDMA and UDMA33 devices. Supports MWDMA as well unlike
+ * the old ide/pci driver.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_old_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int speed = adev->dma_mode - XFER_MW_DMA_0;
+ int drive_pci = sis_port_base(adev);
+ u16 timing;
+
+ const u16 mwdma_bits[] = { 0x707, 0x202, 0x202 };
+ const u16 udma_bits[] = { 0xE000, 0xC000, 0xA000 };
+
+ pci_read_config_word(pdev, drive_pci, &timing);
+
+ if (adev->dma_mode < XFER_UDMA_0) {
+ /* bits 3-0 hold recovery timing bits 8-10 active timing and
+ the higer bits are dependant on the device */
+ timing &= ~ 0x870F;
+ timing |= mwdma_bits[speed];
+ pci_write_config_word(pdev, drive_pci, timing);
+ } else {
+ /* Bit 15 is UDMA on/off, bit 13-14 are cycle time */
+ speed = adev->dma_mode - XFER_UDMA_0;
+ timing &= ~0x6000;
+ timing |= udma_bits[speed];
+ }
+}
+
+/**
+ * sis_66_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ *
+ * Set UDMA/MWDMA mode for device, in host controller PCI config space.
+ * Handles UDMA66 and early UDMA100 devices. Supports MWDMA as well unlike
+ * the old ide/pci driver.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_66_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int speed = adev->dma_mode - XFER_MW_DMA_0;
+ int drive_pci = sis_port_base(adev);
+ u16 timing;
+
+ const u16 mwdma_bits[] = { 0x707, 0x202, 0x202 };
+ const u16 udma_bits[] = { 0xF000, 0xD000, 0xB000, 0xA000, 0x9000};
+
+ pci_read_config_word(pdev, drive_pci, &timing);
+
+ if (adev->dma_mode < XFER_UDMA_0) {
+ /* bits 3-0 hold recovery timing bits 8-10 active timing and
+ the higer bits are dependant on the device, bit 15 udma */
+ timing &= ~ 0x870F;
+ timing |= mwdma_bits[speed];
+ } else {
+ /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
+ speed = adev->dma_mode - XFER_UDMA_0;
+ timing &= ~0x6000;
+ timing |= udma_bits[speed];
+ }
+ pci_write_config_word(pdev, drive_pci, timing);
+}
+
+/**
+ * sis_100_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ *
+ * Set UDMA/MWDMA mode for device, in host controller PCI config space.
+ * Handles UDMA66 and early UDMA100 devices.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_100_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int speed = adev->dma_mode - XFER_MW_DMA_0;
+ int drive_pci = sis_port_base(adev);
+ u16 timing;
+
+ const u16 udma_bits[] = { 0x8B00, 0x8700, 0x8500, 0x8300, 0x8200, 0x8100};
+
+ pci_read_config_word(pdev, drive_pci, &timing);
+
+ if (adev->dma_mode < XFER_UDMA_0) {
+ /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
+ } else {
+ /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
+ speed = adev->dma_mode - XFER_UDMA_0;
+ timing &= ~0x0F00;
+ timing |= udma_bits[speed];
+ }
+ pci_write_config_word(pdev, drive_pci, timing);
+}
+
+/**
+ * sis_133_early_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ *
+ * Set UDMA/MWDMA mode for device, in host controller PCI config space.
+ * Handles early SiS 961 bridges. Supports MWDMA as well unlike
+ * the old ide/pci driver.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_133_early_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int speed = adev->dma_mode - XFER_MW_DMA_0;
+ int drive_pci = sis_port_base(adev);
+ u16 timing;
+
+ const u16 udma_bits[] = { 0x8F00, 0x8A00, 0x8700, 0x8500, 0x8300, 0x8200, 0x8100};
+
+ pci_read_config_word(pdev, drive_pci, &timing);
+
+ if (adev->dma_mode < XFER_UDMA_0) {
+ /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
+ } else {
+ /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
+ speed = adev->dma_mode - XFER_UDMA_0;
+ timing &= ~0x0F00;
+ timing |= udma_bits[speed];
+ }
+ pci_write_config_word(pdev, drive_pci, timing);
+}
+
+/**
+ * sis_133_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device to program
+ *
+ * Set UDMA/MWDMA mode for device, in host controller PCI config space.
+ * Handles early SiS 961 bridges. Supports MWDMA as well unlike
+ * the old ide/pci driver.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void sis_133_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int speed = adev->dma_mode - XFER_MW_DMA_0;
+ int port = 0x40;
+ u32 t1;
+ u32 reg54;
+
+ /* bits 4- cycle time 8 - cvs time */
+ const u32 timing_u100[] = { 0x6B0, 0x470, 0x350, 0x140, 0x120, 0x110, 0x000 };
+ const u32 timing_u133[] = { 0x9F0, 0x6A0, 0x470, 0x250, 0x230, 0x220, 0x210 };
+
+ /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
+ pci_read_config_dword(pdev, 0x54, ®54);
+ if (reg54 & 0x40000000)
+ port = 0x70;
+ port += (8 * ap->port_no) + (4 * adev->devno);
+
+ pci_read_config_dword(pdev, port, &t1);
+
+ if (adev->dma_mode < XFER_UDMA_0) {
+ t1 &= ~0x00000004;
+ /* FIXME: need data sheet to add MWDMA here. Also lacking on
+ ide/pci driver */
+ } else {
+ speed = adev->dma_mode - XFER_UDMA_0;
+ /* if & 8 no UDMA133 - need info for ... */
+ t1 &= ~0x00000FF0;
+ t1 |= 0x00000004;
+ if (t1 & 0x08)
+ t1 |= timing_u133[speed];
+ else
+ t1 |= timing_u100[speed];
+ }
+ pci_write_config_dword(pdev, port, t1);
+}
+
+static struct scsi_host_template sis_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static const struct ata_port_operations sis_133_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sis_133_set_piomode,
+ .set_dmamode = sis_133_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = sis_133_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+static const struct ata_port_operations sis_133_early_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sis_100_set_piomode,
+ .set_dmamode = sis_133_early_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = sis_66_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+static const struct ata_port_operations sis_100_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sis_100_set_piomode,
+ .set_dmamode = sis_100_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = sis_66_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+static const struct ata_port_operations sis_66_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sis_old_set_piomode,
+ .set_dmamode = sis_66_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = sis_66_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+static const struct ata_port_operations sis_old_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sis_old_set_piomode,
+ .set_dmamode = sis_old_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = sis_old_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .eng_timeout = ata_eng_timeout,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
+static struct ata_port_info sis_info = {
+ .sht = &sis_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07,
+ .udma_mask = 0,
+ .port_ops = &sis_old_ops,
+};
+static struct ata_port_info sis_info33 = {
+ .sht = &sis_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA2, /* UDMA 33 */
+ .port_ops = &sis_old_ops,
+};
+static struct ata_port_info sis_info66 = {
+ .sht = &sis_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = ATA_UDMA4, /* UDMA 66 */
+ .port_ops = &sis_66_ops,
+};
+static struct ata_port_info sis_info100 = {
+ .sht = &sis_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = ATA_UDMA5,
+ .port_ops = &sis_100_ops,
+};
+static struct ata_port_info sis_info100_early = {
+ .sht = &sis_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .udma_mask = ATA_UDMA5,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .port_ops = &sis_66_ops,
+};
+static struct ata_port_info sis_info133 = {
+ .sht = &sis_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &sis_133_ops,
+};
+static struct ata_port_info sis_info133_early = {
+ .sht = &sis_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &sis_133_early_ops,
+};
+
+
+static void sis_fixup(struct pci_dev *pdev, struct sis_chipset *sis)
+{
+ u16 regw;
+ u8 reg;
+
+ if (sis->info == &sis_info133) {
+ pci_read_config_word(pdev, 0x50, ®w);
+ if (regw & 0x08)
+ pci_write_config_word(pdev, 0x50, regw & ~0x08);
+ pci_read_config_word(pdev, 0x52, ®w);
+ if (regw & 0x08)
+ pci_write_config_word(pdev, 0x52, regw & ~0x08);
+ return;
+ }
+
+ if (sis->info == &sis_info133_early || sis->info == &sis_info100) {
+ /* Fix up latency */
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
+ /* Set compatibility bit */
+ pci_read_config_byte(pdev, 0x49, ®);
+ if (!(reg & 0x01))
+ pci_write_config_byte(pdev, 0x49, reg | 0x01);
+ return;
+ }
+
+ if (sis->info == &sis_info66 || sis->info == &sis_info100_early) {
+ /* Fix up latency */
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
+ /* Set compatibility bit */
+ pci_read_config_byte(pdev, 0x52, ®);
+ if (!(reg & 0x04))
+ pci_write_config_byte(pdev, 0x52, reg | 0x04);
+ return;
+ }
+
+ if (sis->info == &sis_info33) {
+ pci_read_config_byte(pdev, PCI_CLASS_PROG, ®);
+ if (( reg & 0x0F ) != 0x00)
+ pci_write_config_byte(pdev, PCI_CLASS_PROG, reg & 0xF0);
+ /* Fall through to ATA16 fixup below */
+ }
+
+ if (sis->info == &sis_info || sis->info == &sis_info33) {
+ /* force per drive recovery and active timings
+ needed on ATA_33 and below chips */
+ pci_read_config_byte(pdev, 0x52, ®);
+ if (!(reg & 0x08))
+ pci_write_config_byte(pdev, 0x52, reg|0x08);
+ return;
+ }
+
+ BUG();
+}
+
+/**
+ * sis_init_one - Register SiS ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in sis_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer. We probe for combined mode (sigh),
+ * and then hand over control to libata, for it to do the rest.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ static int printed_version;
+ static struct ata_port_info *port_info[2];
+ struct ata_port_info *port;
+ struct pci_dev *host = NULL;
+ struct sis_chipset *chipset = NULL;
+
+ static struct sis_chipset sis_chipsets[] = {
+ { 0x0745, &sis_info100 },
+ { 0x0735, &sis_info100 },
+ { 0x0733, &sis_info100 },
+ { 0x0635, &sis_info100 },
+ { 0x0633, &sis_info100 },
+
+ { 0x0730, &sis_info100_early }, /* 100 with ATA 66 layout */
+ { 0x0550, &sis_info100_early }, /* 100 with ATA 66 layout */
+
+ { 0x0640, &sis_info66 },
+ { 0x0630, &sis_info66 },
+ { 0x0620, &sis_info66 },
+ { 0x0540, &sis_info66 },
+ { 0x0530, &sis_info66 },
+
+ { 0x5600, &sis_info33 },
+ { 0x5598, &sis_info33 },
+ { 0x5597, &sis_info33 },
+ { 0x5591, &sis_info33 },
+ { 0x5582, &sis_info33 },
+ { 0x5581, &sis_info33 },
+
+ { 0x5596, &sis_info },
+ { 0x5571, &sis_info },
+ { 0x5517, &sis_info },
+ { 0x5511, &sis_info },
+
+ {0}
+ };
+ static struct sis_chipset sis133_early = {
+ 0x0, &sis_info133_early
+ };
+ static struct sis_chipset sis133 = {
+ 0x0, &sis_info133
+ };
+ static struct sis_chipset sis100_early = {
+ 0x0, &sis_info100_early
+ };
+ static struct sis_chipset sis100 = {
+ 0x0, &sis_info100
+ };
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "version " DRV_VERSION "\n");
+
+ /* We have to find the bridge first */
+
+ for (chipset = &sis_chipsets[0]; chipset->device; chipset++) {
+ host = pci_get_device(PCI_VENDOR_ID_SI, chipset->device, NULL);
+ if (host != NULL) {
+ if (chipset->device == 0x630) { /* SIS630 */
+ u8 host_rev;
+ pci_read_config_byte(host, PCI_REVISION_ID, &host_rev);
+ if (host_rev >= 0x30) /* 630 ET */
+ chipset = &sis100_early;
+ }
+ break;
+ }
+ }
+
+ /* Look for concealed bridges */
+ if (host == NULL) {
+ /* Second check */
+ u32 idemisc;
+ u16 trueid;
+
+ /* Disable ID masking and register remapping then
+ see what the real ID is */
+
+ pci_read_config_dword(pdev, 0x54, &idemisc);
+ pci_write_config_dword(pdev, 0x54, idemisc & 0x7fffffff);
+ pci_read_config_word(pdev, PCI_DEVICE_ID, &trueid);
+ pci_write_config_dword(pdev, 0x54, idemisc);
+
+ switch(trueid) {
+ case 0x5518: /* SIS 962/963 */
+ chipset = &sis133;
+ if ((idemisc & 0x40000000) == 0) {
+ pci_write_config_dword(pdev, 0x54, idemisc | 0x40000000);
+ printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n");
+ }
+ break;
+ case 0x0180: /* SIS 965/965L */
+ chipset = &sis133;
+ break;
+ case 0x1180: /* SIS 966/966L */
+ chipset = &sis133;
+ break;
+ }
+ }
+
+ /* Further check */
+ if (chipset == NULL) {
+ struct pci_dev *lpc_bridge;
+ u16 trueid;
+ u8 prefctl;
+ u8 idecfg;
+ u8 sbrev;
+
+ /* Try the second unmasking technique */
+ pci_read_config_byte(pdev, 0x4a, &idecfg);
+ pci_write_config_byte(pdev, 0x4a, idecfg | 0x10);
+ pci_read_config_word(pdev, PCI_DEVICE_ID, &trueid);
+ pci_write_config_byte(pdev, 0x4a, idecfg);
+
+ switch(trueid) {
+ case 0x5517:
+ lpc_bridge = pci_get_slot(pdev->bus, 0x10); /* Bus 0 Dev 2 Fn 0 */
+ if (lpc_bridge == NULL)
+ break;
+ pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev);
+ pci_read_config_byte(pdev, 0x49, &prefctl);
+ pci_dev_put(lpc_bridge);
+
+ if (sbrev == 0x10 && (prefctl & 0x80)) {
+ chipset = &sis133_early;
+ break;
+ }
+ chipset = &sis100;
+ break;
+ }
+ }
+ pci_dev_put(host);
+
+ /* No chipset info, no support */
+ if (chipset == NULL)
+ return -ENODEV;
+
+ port = chipset->info;
+ port->private_data = chipset;
+
+ sis_fixup(pdev, chipset);
+
+ port_info[0] = port_info[1] = port;
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id sis_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x5513), }, /* SiS 5513 */
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x5518), }, /* SiS 5518 */
+ { }
+};
+
+static struct pci_driver sis_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = sis_pci_tbl,
+ .probe = sis_init_one,
+ .remove = ata_pci_remove_one,
+};
+
+static int __init sis_init(void)
+{
+ return pci_register_driver(&sis_pci_driver);
+}
+
+static void __exit sis_exit(void)
+{
+ pci_unregister_driver(&sis_pci_driver);
+}
+
+
+module_init(sis_init);
+module_exit(sis_exit);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for SiS ATA");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
new file mode 100644
index 0000000..47b290b
--- /dev/null
+++ b/drivers/ata/pata_sl82c105.c
@@ -0,0 +1,388 @@
+/*
+ * pata_sl82c105.c - SL82C105 PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Based in part on linux/drivers/ide/pci/sl82c105.c
+ * SL82C105/Winbond 553 IDE driver
+ *
+ * and in part on the documentation and errata sheet
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_sl82c105"
+#define DRV_VERSION "0.2.2"
+
+enum {
+ /*
+ * SL82C105 PCI config register 0x40 bits.
+ */
+ CTRL_IDE_IRQB = (1 << 30),
+ CTRL_IDE_IRQA = (1 << 28),
+ CTRL_LEGIRQ = (1 << 11),
+ CTRL_P1F16 = (1 << 5),
+ CTRL_P1EN = (1 << 4),
+ CTRL_P0F16 = (1 << 1),
+ CTRL_P0EN = (1 << 0)
+};
+
+/**
+ * sl82c105_pre_reset - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int sl82c105_pre_reset(struct ata_port *ap)
+{
+ static const struct pci_bits sl82c105_enable_bits[] = {
+ { 0x40, 1, 0x01, 0x01 },
+ { 0x40, 1, 0x10, 0x10 }
+ };
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (ap->port_no && !pci_test_config_bits(pdev, &sl82c105_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ dev_printk(KERN_INFO, &pdev->dev, "port disabled. ignoring.\n");
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+
+static void sl82c105_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, sl82c105_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+
+/**
+ * sl82c105_configure_piomode - set chip PIO timing
+ * @ap: ATA interface
+ * @adev: ATA device
+ * @pio: PIO mode
+ *
+ * Called to do the PIO mode setup. Our timing registers are shared
+ * so a configure_dmamode call will undo any work we do here and vice
+ * versa
+ */
+
+static void sl82c105_configure_piomode(struct ata_port *ap, struct ata_device *adev, int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static u16 pio_timing[5] = {
+ 0x50D, 0x407, 0x304, 0x242, 0x240
+ };
+ u16 dummy;
+ int timing = 0x44 + (8 * ap->port_no) + (4 * adev->devno);
+
+ pci_write_config_word(pdev, timing, pio_timing[pio]);
+ /* Can we lose this oddity of the old driver */
+ pci_read_config_word(pdev, timing, &dummy);
+}
+
+/**
+ * sl82c105_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the PIO mode setup. Our timing registers are shared
+ * but we want to set the PIO timing by default.
+ */
+
+static void sl82c105_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ sl82c105_configure_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
+}
+
+/**
+ * sl82c105_configure_dmamode - set DMA mode in chip
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Load DMA cycle times into the chip ready for a DMA transfer
+ * to occur.
+ */
+
+static void sl82c105_configure_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static u16 dma_timing[3] = {
+ 0x707, 0x201, 0x200
+ };
+ u16 dummy;
+ int timing = 0x44 + (8 * ap->port_no) + (4 * adev->devno);
+ int dma = adev->dma_mode - XFER_MW_DMA_0;
+
+ pci_write_config_word(pdev, timing, dma_timing[dma]);
+ /* Can we lose this oddity of the old driver */
+ pci_read_config_word(pdev, timing, &dummy);
+}
+
+/**
+ * sl82c105_set_dmamode - set initial DMA mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Called to do the DMA mode setup. This replaces the PIO timings
+ * for the device in question. Set appropriate PIO timings not DMA
+ * timings at this point.
+ */
+
+static void sl82c105_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ switch(adev->dma_mode) {
+ case XFER_MW_DMA_0:
+ sl82c105_configure_piomode(ap, adev, 1);
+ break;
+ case XFER_MW_DMA_1:
+ sl82c105_configure_piomode(ap, adev, 3);
+ break;
+ case XFER_MW_DMA_2:
+ sl82c105_configure_piomode(ap, adev, 3);
+ break;
+ default:
+ BUG();
+ }
+}
+
+/**
+ * sl82c105_reset_engine - Reset the DMA engine
+ * @ap: ATA interface
+ *
+ * The sl82c105 has some serious problems with the DMA engine
+ * when transfers don't run as expected or ATAPI is used. The
+ * recommended fix is to reset the engine each use using a chip
+ * test register.
+ */
+
+static void sl82c105_reset_engine(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u16 val;
+
+ pci_read_config_word(pdev, 0x7E, &val);
+ pci_write_config_word(pdev, 0x7E, val | 4);
+ pci_write_config_word(pdev, 0x7E, val & ~4);
+}
+
+/**
+ * sl82c105_bmdma_start - DMA engine begin
+ * @qc: ATA command
+ *
+ * Reset the DMA engine each use as recommended by the errata
+ * document.
+ *
+ * FIXME: if we switch clock at BMDMA start/end we might get better
+ * PIO performance on DMA capable devices.
+ */
+
+static void sl82c105_bmdma_start(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+
+ sl82c105_reset_engine(ap);
+
+ /* Set the clocks for DMA */
+ sl82c105_configure_dmamode(ap, qc->dev);
+ /* Activate DMA */
+ ata_bmdma_start(qc);
+}
+
+/**
+ * sl82c105_bmdma_end - DMA engine stop
+ * @qc: ATA command
+ *
+ * Reset the DMA engine each use as recommended by the errata
+ * document.
+ *
+ * This function is also called to turn off DMA when a timeout occurs
+ * during DMA operation. In both cases we need to reset the engine,
+ * so no actual eng_timeout handler is required.
+ *
+ * We assume bmdma_stop is always called if bmdma_start as called. If
+ * not then we may need to wrap qc_issue.
+ */
+
+static void sl82c105_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+
+ ata_bmdma_stop(qc);
+ sl82c105_reset_engine(ap);
+
+ /* This will redo the initial setup of the DMA device to matching
+ PIO timings */
+ sl82c105_set_dmamode(ap, qc->dev);
+}
+
+static struct scsi_host_template sl82c105_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations sl82c105_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = sl82c105_set_piomode,
+ .set_dmamode = sl82c105_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .error_handler = sl82c105_error_handler,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = sl82c105_bmdma_start,
+ .bmdma_stop = sl82c105_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * sl82c105_bridge_revision - find bridge version
+ * @pdev: PCI device for the ATA function
+ *
+ * Locates the PCI bridge associated with the ATA function and
+ * providing it is a Winbond 553 reports the revision. If it cannot
+ * find a revision or the right device it returns -1
+ */
+
+static int sl82c105_bridge_revision(struct pci_dev *pdev)
+{
+ struct pci_dev *bridge;
+ u8 rev;
+
+ /*
+ * The bridge should be part of the same device, but function 0.
+ */
+ bridge = pci_get_slot(pdev->bus,
+ PCI_DEVFN(PCI_SLOT(pdev->devfn), 0));
+ if (!bridge)
+ return -1;
+
+ /*
+ * Make sure it is a Winbond 553 and is an ISA bridge.
+ */
+ if (bridge->vendor != PCI_VENDOR_ID_WINBOND ||
+ bridge->device != PCI_DEVICE_ID_WINBOND_83C553 ||
+ bridge->class >> 8 != PCI_CLASS_BRIDGE_ISA) {
+ pci_dev_put(bridge);
+ return -1;
+ }
+ /*
+ * We need to find function 0's revision, not function 1
+ */
+ pci_read_config_byte(bridge, PCI_REVISION_ID, &rev);
+
+ pci_dev_put(bridge);
+ return rev;
+}
+
+
+static int sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info_dma = {
+ .sht = &sl82c105_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &sl82c105_port_ops
+ };
+ static struct ata_port_info info_early = {
+ .sht = &sl82c105_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .port_ops = &sl82c105_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info_early, &info_early };
+ u32 val;
+ int rev;
+
+ rev = sl82c105_bridge_revision(dev);
+
+ if (rev == -1)
+ dev_printk(KERN_WARNING, &dev->dev, "pata_sl82c105: Unable to find bridge, disabling DMA.\n");
+ else if (rev <= 5)
+ dev_printk(KERN_WARNING, &dev->dev, "pata_sl82c105: Early bridge revision, no DMA available.\n");
+ else {
+ port_info[0] = &info_dma;
+ port_info[1] = &info_dma;
+ }
+
+ pci_read_config_dword(dev, 0x40, &val);
+ val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
+ pci_write_config_dword(dev, 0x40, val);
+
+
+ return ata_pci_init_one(dev, port_info, 1); /* For now */
+}
+
+static struct pci_device_id sl82c105[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105), },
+ { 0, },
+};
+
+static struct pci_driver sl82c105_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = sl82c105,
+ .probe = sl82c105_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init sl82c105_init(void)
+{
+ return pci_register_driver(&sl82c105_pci_driver);
+}
+
+
+static void __exit sl82c105_exit(void)
+{
+ pci_unregister_driver(&sl82c105_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Sl82c105");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, sl82c105);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(sl82c105_init);
+module_exit(sl82c105_exit);
diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c
new file mode 100644
index 0000000..7dd6ea3
--- /dev/null
+++ b/drivers/ata/pata_triflex.c
@@ -0,0 +1,285 @@
+/*
+ * pata_triflex.c - Compaq PATA for new ATA layer
+ * (C) 2005 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * based upon
+ *
+ * triflex.c
+ *
+ * IDE Chipset driver for the Compaq TriFlex IDE controller.
+ *
+ * Known to work with the Compaq Workstation 5x00 series.
+ *
+ * Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
+ * Author: Torben Mathiasen <torben.mathiasen@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Loosely based on the piix & svwks drivers.
+ *
+ * Documentation:
+ * Not publically available.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_triflex"
+#define DRV_VERSION "0.2.5"
+
+/**
+ * triflex_probe_init - probe begin
+ * @ap: ATA port
+ *
+ * Set up cable type and use generic probe init
+ */
+
+static int triflex_probe_init(struct ata_port *ap)
+{
+ static const struct pci_bits triflex_enable_bits[] = {
+ { 0x80, 1, 0x01, 0x01 },
+ { 0x80, 1, 0x02, 0x02 }
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (!pci_test_config_bits(pdev, &triflex_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+
+
+static void triflex_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, triflex_probe_init, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * triflex_load_timing - timing configuration
+ * @ap: ATA interface
+ * @adev: Device on the bus
+ * @speed: speed to configure
+ *
+ * The Triflex has one set of timings per device per channel. This
+ * means we must do some switching. As the PIO and DMA timings don't
+ * match we have to do some reloading unlike PIIX devices where tuning
+ * tricks can avoid it.
+ */
+
+static void triflex_load_timing(struct ata_port *ap, struct ata_device *adev, int speed)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 timing = 0;
+ u32 triflex_timing, old_triflex_timing;
+ int channel_offset = ap->port_no ? 0x74: 0x70;
+ unsigned int is_slave = (adev->devno != 0);
+
+
+ pci_read_config_dword(pdev, channel_offset, &old_triflex_timing);
+ triflex_timing = old_triflex_timing;
+
+ switch(speed)
+ {
+ case XFER_MW_DMA_2:
+ timing = 0x0103;break;
+ case XFER_MW_DMA_1:
+ timing = 0x0203;break;
+ case XFER_MW_DMA_0:
+ timing = 0x0808;break;
+ case XFER_SW_DMA_2:
+ case XFER_SW_DMA_1:
+ case XFER_SW_DMA_0:
+ timing = 0x0F0F;break;
+ case XFER_PIO_4:
+ timing = 0x0202;break;
+ case XFER_PIO_3:
+ timing = 0x0204;break;
+ case XFER_PIO_2:
+ timing = 0x0404;break;
+ case XFER_PIO_1:
+ timing = 0x0508;break;
+ case XFER_PIO_0:
+ timing = 0x0808;break;
+ default:
+ BUG();
+ }
+ triflex_timing &= ~ (0xFFFF << (16 * is_slave));
+ triflex_timing |= (timing << (16 * is_slave));
+
+ if (triflex_timing != old_triflex_timing)
+ pci_write_config_dword(pdev, channel_offset, triflex_timing);
+}
+
+/**
+ * triflex_set_piomode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Use the timing loader to set up the PIO mode. We have to do this
+ * because DMA start/stop will only be called once DMA occurs. If there
+ * has been no DMA then the PIO timings are still needed.
+ */
+static void triflex_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ triflex_load_timing(ap, adev, adev->pio_mode);
+}
+
+/**
+ * triflex_dma_start - DMA start callback
+ * @qc: Command in progress
+ *
+ * Usually drivers set the DMA timing at the point the set_dmamode call
+ * is made. Triflex however requires we load new timings on the
+ * transition or keep matching PIO/DMA pairs (ie MWDMA2/PIO4 etc).
+ * We load the DMA timings just before starting DMA and then restore
+ * the PIO timing when the DMA is finished.
+ */
+
+static void triflex_bmdma_start(struct ata_queued_cmd *qc)
+{
+ triflex_load_timing(qc->ap, qc->dev, qc->dev->dma_mode);
+ ata_bmdma_start(qc);
+}
+
+/**
+ * triflex_dma_stop - DMA stop callback
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * We loaded new timings in dma_start, as a result we need to restore
+ * the PIO timings in dma_stop so that the next command issue gets the
+ * right clock values.
+ */
+
+static void triflex_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ ata_bmdma_stop(qc);
+ triflex_load_timing(qc->ap, qc->dev, qc->dev->pio_mode);
+}
+
+static struct scsi_host_template triflex_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations triflex_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = triflex_set_piomode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = triflex_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = triflex_bmdma_start,
+ .bmdma_stop = triflex_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static int triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ static struct ata_port_info info = {
+ .sht = &triflex_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &triflex_port_ops
+ };
+ static struct ata_port_info *port_info[2] = { &info, &info };
+ static int printed_version;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
+
+ return ata_pci_init_one(dev, port_info, 2);
+}
+
+static const struct pci_device_id triflex[] = {
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0, },
+};
+
+static struct pci_driver triflex_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = triflex,
+ .probe = triflex_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init triflex_init(void)
+{
+ return pci_register_driver(&triflex_pci_driver);
+}
+
+
+static void __exit triflex_exit(void)
+{
+ pci_unregister_driver(&triflex_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for Compaq Triflex");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, triflex);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(triflex_init);
+module_exit(triflex_exit);
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
new file mode 100644
index 0000000..2580e16
--- /dev/null
+++ b/drivers/ata/pata_via.c
@@ -0,0 +1,568 @@
+/*
+ * pata_via.c - VIA PATA for new ATA layer
+ * (C) 2005-2006 Red Hat Inc
+ * Alan Cox <alan@redhat.com>
+ *
+ * Documentation
+ * Most chipset documentation available under NDA only
+ *
+ * VIA version guide
+ * VIA VT82C561 - early design, uses ata_generic currently
+ * VIA VT82C576 - MWDMA, 33Mhz
+ * VIA VT82C586 - MWDMA, 33Mhz
+ * VIA VT82C586a - Added UDMA to 33Mhz
+ * VIA VT82C586b - UDMA33
+ * VIA VT82C596a - Nonfunctional UDMA66
+ * VIA VT82C596b - Working UDMA66
+ * VIA VT82C686 - Nonfunctional UDMA66
+ * VIA VT82C686a - Working UDMA66
+ * VIA VT82C686b - Updated to UDMA100
+ * VIA VT8231 - UDMA100
+ * VIA VT8233 - UDMA100
+ * VIA VT8233a - UDMA133
+ * VIA VT8233c - UDMA100
+ * VIA VT8235 - UDMA133
+ * VIA VT8237 - UDMA133
+ *
+ * Most registers remain compatible across chips. Others start reserved
+ * and acquire sensible semantics if set to 1 (eg cable detect). A few
+ * exceptions exist, notably around the FIFO settings.
+ *
+ * One additional quirk of the VIA design is that like ALi they use few
+ * PCI IDs for a lot of chips.
+ *
+ * Based heavily on:
+ *
+ * Version 3.38
+ *
+ * VIA IDE driver for Linux. Supported southbridges:
+ *
+ * vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b,
+ * vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a,
+ * vt8235, vt8237
+ *
+ * Copyright (c) 2000-2002 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Michel Aubry
+ * Jeff Garzik
+ * Andre Hedrick
+
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_via"
+#define DRV_VERSION "0.1.13"
+
+/*
+ * The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx
+ * driver.
+ */
+
+enum {
+ VIA_UDMA = 0x007,
+ VIA_UDMA_NONE = 0x000,
+ VIA_UDMA_33 = 0x001,
+ VIA_UDMA_66 = 0x002,
+ VIA_UDMA_100 = 0x003,
+ VIA_UDMA_133 = 0x004,
+ VIA_BAD_PREQ = 0x010, /* Crashes if PREQ# till DDACK# set */
+ VIA_BAD_CLK66 = 0x020, /* 66 MHz clock doesn't work correctly */
+ VIA_SET_FIFO = 0x040, /* Needs to have FIFO split set */
+ VIA_NO_UNMASK = 0x080, /* Doesn't work with IRQ unmasking on */
+ VIA_BAD_ID = 0x100, /* Has wrong vendor ID (0x1107) */
+ VIA_BAD_AST = 0x200, /* Don't touch Address Setup Timing */
+ VIA_NO_ENABLES = 0x400, /* Has no enablebits */
+};
+
+/*
+ * VIA SouthBridge chips.
+ */
+
+static const struct via_isa_bridge {
+ const char *name;
+ u16 id;
+ u8 rev_min;
+ u8 rev_max;
+ u16 flags;
+} via_isa_bridges[] = {
+ { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
+ { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES},
+ { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
+ { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
+ { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
+ { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
+ { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, VIA_UDMA_100 },
+ { "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, VIA_UDMA_100 },
+ { "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, VIA_UDMA_100 },
+ { "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, VIA_UDMA_100 },
+ { "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, VIA_UDMA_66 },
+ { "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
+ { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, VIA_UDMA_66 },
+ { "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
+ { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, VIA_UDMA_33 | VIA_SET_FIFO },
+ { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, VIA_UDMA_33 | VIA_SET_FIFO | VIA_BAD_PREQ },
+ { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, VIA_UDMA_33 | VIA_SET_FIFO },
+ { "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, VIA_UDMA_33 | VIA_SET_FIFO },
+ { "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, VIA_UDMA_NONE | VIA_SET_FIFO },
+ { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK },
+ { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
+ { NULL }
+};
+
+/**
+ * via_cable_detect - cable detection
+ * @ap: ATA port
+ *
+ * Perform cable detection. Actually for the VIA case the BIOS
+ * already did this for us. We read the values provided by the
+ * BIOS. If you are using an 8235 in a non-PC configuration you
+ * may need to update this code.
+ *
+ * Hotplug also impacts on this.
+ */
+
+static int via_cable_detect(struct ata_port *ap) {
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u32 ata66;
+
+ pci_read_config_dword(pdev, 0x50, &ata66);
+ /* Check both the drive cable reporting bits, we might not have
+ two drives */
+ if (ata66 & (0x10100000 >> (16 * ap->port_no)))
+ return ATA_CBL_PATA80;
+ else
+ return ATA_CBL_PATA40;
+}
+
+static int via_pre_reset(struct ata_port *ap)
+{
+ const struct via_isa_bridge *config = ap->host->private_data;
+
+ if (!(config->flags & VIA_NO_ENABLES)) {
+ static const struct pci_bits via_enable_bits[] = {
+ { 0x40, 1, 0x02, 0x02 },
+ { 0x40, 1, 0x01, 0x01 }
+ };
+
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (!pci_test_config_bits(pdev, &via_enable_bits[ap->port_no])) {
+ ata_port_disable(ap);
+ printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
+ return 0;
+ }
+ }
+
+ if ((config->flags & VIA_UDMA) >= VIA_UDMA_66)
+ ap->cbl = via_cable_detect(ap);
+ else
+ ap->cbl = ATA_CBL_PATA40;
+ return ata_std_prereset(ap);
+}
+
+
+/**
+ * via_error_handler - reset for VIA chips
+ * @ap: ATA port
+ *
+ * Handle the reset callback for the later chips with cable detect
+ */
+
+static void via_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, via_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+/**
+ * via_do_set_mode - set initial PIO mode data
+ * @ap: ATA interface
+ * @adev: ATA device
+ * @mode: ATA mode being programmed
+ * @tdiv: Clocks per PCI clock
+ * @set_ast: Set to program address setup
+ * @udma_type: UDMA mode/format of registers
+ *
+ * Program the VIA registers for DMA and PIO modes. Uses the ata timing
+ * support in order to compute modes.
+ *
+ * FIXME: Hotplug will require we serialize multiple mode changes
+ * on the two channels.
+ */
+
+static void via_do_set_mode(struct ata_port *ap, struct ata_device *adev, int mode, int tdiv, int set_ast, int udma_type)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ struct ata_device *peer = ata_dev_pair(adev);
+ struct ata_timing t, p;
+ static int via_clock = 33333; /* Bus clock in kHZ - ought to be tunable one day */
+ unsigned long T = 1000000000 / via_clock;
+ unsigned long UT = T/tdiv;
+ int ut;
+ int offset = 3 - (2*ap->port_no) - adev->devno;
+
+
+ /* Calculate the timing values we require */
+ ata_timing_compute(adev, mode, &t, T, UT);
+
+ /* We share 8bit timing so we must merge the constraints */
+ if (peer) {
+ if (peer->pio_mode) {
+ ata_timing_compute(peer, peer->pio_mode, &p, T, UT);
+ ata_timing_merge(&p, &t, &t, ATA_TIMING_8BIT);
+ }
+ }
+
+ /* Address setup is programmable but breaks on UDMA133 setups */
+ if (set_ast) {
+ u8 setup; /* 2 bits per drive */
+ int shift = 2 * offset;
+
+ pci_read_config_byte(pdev, 0x4C, &setup);
+ setup &= ~(3 << shift);
+ setup |= FIT(t.setup, 1, 4) << shift; /* 1,4 or 1,4 - 1 FIXME */
+ pci_write_config_byte(pdev, 0x4C, setup);
+ }
+
+ /* Load the PIO mode bits */
+ pci_write_config_byte(pdev, 0x4F - ap->port_no,
+ ((FIT(t.act8b, 1, 16) - 1) << 4) | (FIT(t.rec8b, 1, 16) - 1));
+ pci_write_config_byte(pdev, 0x48 + offset,
+ ((FIT(t.active, 1, 16) - 1) << 4) | (FIT(t.recover, 1, 16) - 1));
+
+ /* Load the UDMA bits according to type */
+ switch(udma_type) {
+ default:
+ /* BUG() ? */
+ /* fall through */
+ case 33:
+ ut = t.udma ? (0xe0 | (FIT(t.udma, 2, 5) - 2)) : 0x03;
+ break;
+ case 66:
+ ut = t.udma ? (0xe8 | (FIT(t.udma, 2, 9) - 2)) : 0x0f;
+ break;
+ case 100:
+ ut = t.udma ? (0xe0 | (FIT(t.udma, 2, 9) - 2)) : 0x07;
+ break;
+ case 133:
+ ut = t.udma ? (0xe0 | (FIT(t.udma, 2, 9) - 2)) : 0x07;
+ break;
+ }
+ /* Set UDMA unless device is not UDMA capable */
+ if (udma_type)
+ pci_write_config_byte(pdev, 0x50 + offset, ut);
+}
+
+static void via_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ const struct via_isa_bridge *config = ap->host->private_data;
+ int set_ast = (config->flags & VIA_BAD_AST) ? 0 : 1;
+ int mode = config->flags & VIA_UDMA;
+ static u8 tclock[5] = { 1, 1, 2, 3, 4 };
+ static u8 udma[5] = { 0, 33, 66, 100, 133 };
+
+ via_do_set_mode(ap, adev, adev->pio_mode, tclock[mode], set_ast, udma[mode]);
+}
+
+static void via_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ const struct via_isa_bridge *config = ap->host->private_data;
+ int set_ast = (config->flags & VIA_BAD_AST) ? 0 : 1;
+ int mode = config->flags & VIA_UDMA;
+ static u8 tclock[5] = { 1, 1, 2, 3, 4 };
+ static u8 udma[5] = { 0, 33, 66, 100, 133 };
+
+ via_do_set_mode(ap, adev, adev->dma_mode, tclock[mode], set_ast, udma[mode]);
+}
+
+static struct scsi_host_template via_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .max_sectors = ATA_MAX_SECTORS,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations via_port_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = via_set_piomode,
+ .set_dmamode = via_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = via_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+static struct ata_port_operations via_port_ops_noirq = {
+ .port_disable = ata_port_disable,
+ .set_piomode = via_set_piomode,
+ .set_dmamode = via_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = via_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer_noirq,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop
+};
+
+/**
+ * via_init_one - discovery callback
+ * @pdev: PCI device ID
+ * @id: PCI table info
+ *
+ * A VIA IDE interface has been discovered. Figure out what revision
+ * and perform configuration work before handing it to the ATA layer
+ */
+
+static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ /* Early VIA without UDMA support */
+ static struct ata_port_info via_mwdma_info = {
+ .sht = &via_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &via_port_ops
+ };
+ /* Ditto with IRQ masking required */
+ static struct ata_port_info via_mwdma_info_borked = {
+ .sht = &via_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .port_ops = &via_port_ops_noirq,
+ };
+ /* VIA UDMA 33 devices (and borked 66) */
+ static struct ata_port_info via_udma33_info = {
+ .sht = &via_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7,
+ .port_ops = &via_port_ops
+ };
+ /* VIA UDMA 66 devices */
+ static struct ata_port_info via_udma66_info = {
+ .sht = &via_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x1f,
+ .port_ops = &via_port_ops
+ };
+ /* VIA UDMA 100 devices */
+ static struct ata_port_info via_udma100_info = {
+ .sht = &via_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x3f,
+ .port_ops = &via_port_ops
+ };
+ /* UDMA133 with bad AST (All current 133) */
+ static struct ata_port_info via_udma133_info = {
+ .sht = &via_sht,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = 0x7f, /* FIXME: should check north bridge */
+ .port_ops = &via_port_ops
+ };
+ struct ata_port_info *port_info[2], *type;
+ struct pci_dev *isa = NULL;
+ const struct via_isa_bridge *config;
+ static int printed_version;
+ u8 t;
+ u8 enable;
+ u32 timing;
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+
+ /* To find out how the IDE will behave and what features we
+ actually have to look at the bridge not the IDE controller */
+ for (config = via_isa_bridges; config->id; config++)
+ if ((isa = pci_get_device(PCI_VENDOR_ID_VIA +
+ !!(config->flags & VIA_BAD_ID),
+ config->id, NULL))) {
+
+ pci_read_config_byte(isa, PCI_REVISION_ID, &t);
+ if (t >= config->rev_min &&
+ t <= config->rev_max)
+ break;
+ pci_dev_put(isa);
+ }
+
+ if (!config->id) {
+ printk(KERN_WARNING "via: Unknown VIA SouthBridge, disabling.\n");
+ return -ENODEV;
+ }
+ pci_dev_put(isa);
+
+ /* 0x40 low bits indicate enabled channels */
+ pci_read_config_byte(pdev, 0x40 , &enable);
+ enable &= 3;
+ if (enable == 0) {
+ return -ENODEV;
+ }
+
+ /* Initialise the FIFO for the enabled channels. */
+ if (config->flags & VIA_SET_FIFO) {
+ u8 fifo_setting[4] = {0x00, 0x60, 0x00, 0x20};
+ u8 fifo;
+
+ pci_read_config_byte(pdev, 0x43, &fifo);
+
+ /* Clear PREQ# until DDACK# for errata */
+ if (config->flags & VIA_BAD_PREQ)
+ fifo &= 0x7F;
+ else
+ fifo &= 0x9f;
+ /* Turn on FIFO for enabled channels */
+ fifo |= fifo_setting[enable];
+ pci_write_config_byte(pdev, 0x43, fifo);
+ }
+ /* Clock set up */
+ switch(config->flags & VIA_UDMA) {
+ case VIA_UDMA_NONE:
+ if (config->flags & VIA_NO_UNMASK)
+ type = &via_mwdma_info_borked;
+ else
+ type = &via_mwdma_info;
+ break;
+ case VIA_UDMA_33:
+ type = &via_udma33_info;
+ break;
+ case VIA_UDMA_66:
+ type = &via_udma66_info;
+ /* The 66 MHz devices require we enable the clock */
+ pci_read_config_dword(pdev, 0x50, &timing);
+ timing |= 0x80008;
+ pci_write_config_dword(pdev, 0x50, timing);
+ break;
+ case VIA_UDMA_100:
+ type = &via_udma100_info;
+ break;
+ case VIA_UDMA_133:
+ type = &via_udma133_info;
+ break;
+ default:
+ WARN_ON(1);
+ return -ENODEV;
+ }
+
+ if (config->flags & VIA_BAD_CLK66) {
+ /* Disable the 66MHz clock on problem devices */
+ pci_read_config_dword(pdev, 0x50, &timing);
+ timing &= ~0x80008;
+ pci_write_config_dword(pdev, 0x50, timing);
+ }
+
+ /* We have established the device type, now fire it up */
+ type->private_data = (void *)config;
+
+ port_info[0] = port_info[1] = type;
+ return ata_pci_init_one(pdev, port_info, 2);
+}
+
+static const struct pci_device_id via[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576_1), },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1), },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_6410), },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_SATA_EIDE), },
+ { 0, },
+};
+
+static struct pci_driver via_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = via,
+ .probe = via_init_one,
+ .remove = ata_pci_remove_one
+};
+
+static int __init via_init(void)
+{
+ return pci_register_driver(&via_pci_driver);
+}
+
+
+static void __exit via_exit(void)
+{
+ pci_unregister_driver(&via_pci_driver);
+}
+
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for VIA PATA");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, via);
+MODULE_VERSION(DRV_VERSION);
+
+module_init(via_init);
+module_exit(via_exit);