Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/ide/pci/Makefile b/drivers/ide/pci/Makefile
new file mode 100644
index 0000000..55e6e55
--- /dev/null
+++ b/drivers/ide/pci/Makefile
@@ -0,0 +1,34 @@
+
+obj-$(CONFIG_BLK_DEV_AEC62XX) += aec62xx.o
+obj-$(CONFIG_BLK_DEV_ALI15X3) += alim15x3.o
+obj-$(CONFIG_BLK_DEV_AMD74XX) += amd74xx.o
+obj-$(CONFIG_BLK_DEV_ATIIXP) += atiixp.o
+obj-$(CONFIG_BLK_DEV_CMD64X) += cmd64x.o
+obj-$(CONFIG_BLK_DEV_CS5520) += cs5520.o
+obj-$(CONFIG_BLK_DEV_CS5530) += cs5530.o
+obj-$(CONFIG_BLK_DEV_SC1200) += sc1200.o
+obj-$(CONFIG_BLK_DEV_CY82C693) += cy82c693.o
+obj-$(CONFIG_BLK_DEV_HPT34X) += hpt34x.o
+obj-$(CONFIG_BLK_DEV_HPT366) += hpt366.o
+#obj-$(CONFIG_BLK_DEV_HPT37X) += hpt37x.o
+obj-$(CONFIG_BLK_DEV_IT8172) += it8172.o
+obj-$(CONFIG_BLK_DEV_NS87415) += ns87415.o
+obj-$(CONFIG_BLK_DEV_OPTI621) += opti621.o
+obj-$(CONFIG_BLK_DEV_PDC202XX_OLD) += pdc202xx_old.o
+obj-$(CONFIG_BLK_DEV_PDC202XX_NEW) += pdc202xx_new.o
+obj-$(CONFIG_BLK_DEV_PIIX) += piix.o
+obj-$(CONFIG_BLK_DEV_RZ1000) += rz1000.o
+obj-$(CONFIG_BLK_DEV_SVWKS) += serverworks.o
+obj-$(CONFIG_BLK_DEV_SGIIOC4) += sgiioc4.o
+obj-$(CONFIG_BLK_DEV_SIIMAGE) += siimage.o
+obj-$(CONFIG_BLK_DEV_SIS5513) += sis5513.o
+obj-$(CONFIG_BLK_DEV_SL82C105) += sl82c105.o
+obj-$(CONFIG_BLK_DEV_SLC90E66) += slc90e66.o
+obj-$(CONFIG_BLK_DEV_TRIFLEX) += triflex.o
+obj-$(CONFIG_BLK_DEV_TRM290) += trm290.o
+obj-$(CONFIG_BLK_DEV_VIA82CXXX) += via82cxxx.o
+
+# Must appear at the end of the block
+obj-$(CONFIG_BLK_DEV_GENERIC) += generic.o
+
+EXTRA_CFLAGS := -Idrivers/ide
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
new file mode 100644
index 0000000..52cadc0
--- /dev/null
+++ b/drivers/ide/pci/aec62xx.c
@@ -0,0 +1,485 @@
+/*
+ * linux/drivers/ide/pci/aec62xx.c Version 0.11 March 27, 2002
+ *
+ * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+struct chipset_bus_clock_list_entry {
+ u8 xfer_speed;
+ u8 chipset_settings;
+ u8 ultra_settings;
+};
+
+static struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
+ { XFER_UDMA_6, 0x31, 0x07 },
+ { XFER_UDMA_5, 0x31, 0x06 },
+ { XFER_UDMA_4, 0x31, 0x05 },
+ { XFER_UDMA_3, 0x31, 0x04 },
+ { XFER_UDMA_2, 0x31, 0x03 },
+ { XFER_UDMA_1, 0x31, 0x02 },
+ { XFER_UDMA_0, 0x31, 0x01 },
+
+ { XFER_MW_DMA_2, 0x31, 0x00 },
+ { XFER_MW_DMA_1, 0x31, 0x00 },
+ { XFER_MW_DMA_0, 0x0a, 0x00 },
+ { XFER_PIO_4, 0x31, 0x00 },
+ { XFER_PIO_3, 0x33, 0x00 },
+ { XFER_PIO_2, 0x08, 0x00 },
+ { XFER_PIO_1, 0x0a, 0x00 },
+ { XFER_PIO_0, 0x00, 0x00 },
+ { 0, 0x00, 0x00 }
+};
+
+static struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
+ { XFER_UDMA_6, 0x41, 0x06 },
+ { XFER_UDMA_5, 0x41, 0x05 },
+ { XFER_UDMA_4, 0x41, 0x04 },
+ { XFER_UDMA_3, 0x41, 0x03 },
+ { XFER_UDMA_2, 0x41, 0x02 },
+ { XFER_UDMA_1, 0x41, 0x01 },
+ { XFER_UDMA_0, 0x41, 0x01 },
+
+ { XFER_MW_DMA_2, 0x41, 0x00 },
+ { XFER_MW_DMA_1, 0x42, 0x00 },
+ { XFER_MW_DMA_0, 0x7a, 0x00 },
+ { XFER_PIO_4, 0x41, 0x00 },
+ { XFER_PIO_3, 0x43, 0x00 },
+ { XFER_PIO_2, 0x78, 0x00 },
+ { XFER_PIO_1, 0x7a, 0x00 },
+ { XFER_PIO_0, 0x70, 0x00 },
+ { 0, 0x00, 0x00 }
+};
+
+#define BUSCLOCK(D) \
+ ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))
+
+#if 0
+ if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
+ (void) pci_read_config_byte(dev, 0x54, &art);
+ p += sprintf(p, "DMA Mode: %s(%s)",
+ (c0&0x20)?((art&0x03)?"UDMA":" DMA"):" PIO",
+ (art&0x02)?"2":(art&0x01)?"1":"0");
+ p += sprintf(p, " %s(%s)",
+ (c0&0x40)?((art&0x0c)?"UDMA":" DMA"):" PIO",
+ (art&0x08)?"2":(art&0x04)?"1":"0");
+ p += sprintf(p, " %s(%s)",
+ (c1&0x20)?((art&0x30)?"UDMA":" DMA"):" PIO",
+ (art&0x20)?"2":(art&0x10)?"1":"0");
+ p += sprintf(p, " %s(%s)\n",
+ (c1&0x40)?((art&0xc0)?"UDMA":" DMA"):" PIO",
+ (art&0x80)?"2":(art&0x40)?"1":"0");
+ } else {
+#endif
+
+/*
+ * TO DO: active tuning and correction of cards without a bios.
+ */
+static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
+{
+ for ( ; chipset_table->xfer_speed ; chipset_table++)
+ if (chipset_table->xfer_speed == speed) {
+ return chipset_table->chipset_settings;
+ }
+ return chipset_table->chipset_settings;
+}
+
+static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
+{
+ for ( ; chipset_table->xfer_speed ; chipset_table++)
+ if (chipset_table->xfer_speed == speed) {
+ return chipset_table->ultra_settings;
+ }
+ return chipset_table->ultra_settings;
+}
+
+static u8 aec62xx_ratemask (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 mode;
+
+ switch(hwif->pci_dev->device) {
+ case PCI_DEVICE_ID_ARTOP_ATP865:
+ case PCI_DEVICE_ID_ARTOP_ATP865R:
+#if 0
+ mode = (hwif->INB(hwif->dma_master) & 0x10) ? 4 : 3;
+#else
+ mode = (hwif->INB(((hwif->channel) ?
+ hwif->mate->dma_status :
+ hwif->dma_status)) & 0x10) ? 4 : 3;
+#endif
+ break;
+ case PCI_DEVICE_ID_ARTOP_ATP860:
+ case PCI_DEVICE_ID_ARTOP_ATP860R:
+ mode = 2;
+ break;
+ case PCI_DEVICE_ID_ARTOP_ATP850UF:
+ default:
+ return 1;
+ }
+
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u16 d_conf = 0;
+ u8 speed = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
+ u8 ultra = 0, ultra_conf = 0;
+ u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
+ pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
+ tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
+ d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
+ pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
+
+ tmp1 = 0x00;
+ tmp2 = 0x00;
+ pci_read_config_byte(dev, 0x54, &ultra);
+ tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
+ ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
+ tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
+ pci_write_config_byte(dev, 0x54, tmp2);
+ local_irq_restore(flags);
+ return(ide_config_drive_speed(drive, speed));
+}
+
+static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 speed = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
+ u8 unit = (drive->select.b.unit & 0x01);
+ u8 tmp1 = 0, tmp2 = 0;
+ u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ /* high 4-bits: Active, low 4-bits: Recovery */
+ pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
+ drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
+ pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
+
+ pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
+ tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
+ ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
+ tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
+ pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
+ local_irq_restore(flags);
+ return(ide_config_drive_speed(drive, speed));
+}
+
+static int aec62xx_tune_chipset (ide_drive_t *drive, u8 speed)
+{
+ switch (HWIF(drive)->pci_dev->device) {
+ case PCI_DEVICE_ID_ARTOP_ATP865:
+ case PCI_DEVICE_ID_ARTOP_ATP865R:
+ case PCI_DEVICE_ID_ARTOP_ATP860:
+ case PCI_DEVICE_ID_ARTOP_ATP860R:
+ return ((int) aec6260_tune_chipset(drive, speed));
+ case PCI_DEVICE_ID_ARTOP_ATP850UF:
+ return ((int) aec6210_tune_chipset(drive, speed));
+ default:
+ return -1;
+ }
+}
+
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, aec62xx_ratemask(drive));
+
+ if (!(speed))
+ return 0;
+
+ (void) aec62xx_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ u8 speed = 0;
+ u8 new_pio = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
+
+ switch(pio) {
+ case 5: speed = new_pio; break;
+ case 4: speed = XFER_PIO_4; break;
+ case 3: speed = XFER_PIO_3; break;
+ case 2: speed = XFER_PIO_2; break;
+ case 1: speed = XFER_PIO_1; break;
+ default: speed = XFER_PIO_0; break;
+ }
+ (void) aec62xx_tune_chipset(drive, speed);
+}
+
+static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ if ((id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ aec62xx_tune_drive(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+static int aec62xx_irq_timeout (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ switch(dev->device) {
+ case PCI_DEVICE_ID_ARTOP_ATP860:
+ case PCI_DEVICE_ID_ARTOP_ATP860R:
+ case PCI_DEVICE_ID_ARTOP_ATP865:
+ case PCI_DEVICE_ID_ARTOP_ATP865R:
+ printk(" AEC62XX time out ");
+#if 0
+ {
+ int i = 0;
+ u8 reg49h = 0;
+ pci_read_config_byte(HWIF(drive)->pci_dev, 0x49, ®49h);
+ for (i=0;i<256;i++)
+ pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h|0x10);
+ pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h & ~0x10);
+ }
+ return 0;
+#endif
+ default:
+ break;
+ }
+#if 0
+ {
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 tmp1 = 0, tmp2 = 0, mode6 = 0;
+
+ pci_read_config_byte(dev, 0x44, &tmp1);
+ pci_read_config_byte(dev, 0x45, &tmp2);
+ printk(" AEC6280 r44=%x r45=%x ",tmp1,tmp2);
+ mode6 = HWIF(drive)->INB(((hwif->channel) ?
+ hwif->mate->dma_status :
+ hwif->dma_status));
+ printk(" AEC6280 133=%x ", (mode6 & 0x10));
+ }
+#endif
+ return 0;
+}
+
+static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
+{
+ int bus_speed = system_bus_clock();
+
+ if (dev->resource[PCI_ROM_RESOURCE].start) {
+ pci_write_config_dword(dev, PCI_ROM_ADDRESS, dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+ printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name, dev->resource[PCI_ROM_RESOURCE].start);
+ }
+
+ if (bus_speed <= 33)
+ pci_set_drvdata(dev, (void *) aec6xxx_33_base);
+ else
+ pci_set_drvdata(dev, (void *) aec6xxx_34_base);
+
+ return dev->irq;
+}
+
+static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
+{
+ hwif->autodma = 0;
+ hwif->tuneproc = &aec62xx_tune_drive;
+ hwif->speedproc = &aec62xx_tune_chipset;
+
+ if (hwif->pci_dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
+ hwif->serialized = hwif->channel;
+ hwif->no_dsc = 1;
+ }
+
+ if (hwif->mate)
+ hwif->mate->serialized = hwif->serialized;
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ hwif->ide_dma_check = &aec62xx_config_drive_xfer_rate;
+ hwif->ide_dma_lostirq = &aec62xx_irq_timeout;
+ hwif->ide_dma_timeout = &aec62xx_irq_timeout;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static void __devinit init_dma_aec62xx(ide_hwif_t *hwif, unsigned long dmabase)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+
+ if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
+ u8 reg54h = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ pci_read_config_byte(dev, 0x54, ®54h);
+ pci_write_config_byte(dev, 0x54, reg54h & ~(hwif->channel ? 0xF0 : 0x0F));
+ spin_unlock_irqrestore(&ide_lock, flags);
+ } else {
+ u8 ata66 = 0;
+ pci_read_config_byte(hwif->pci_dev, 0x49, &ata66);
+ if (!(hwif->udma_four))
+ hwif->udma_four = (ata66&(hwif->channel?0x02:0x01))?0:1;
+ }
+
+ ide_setup_dma(hwif, dmabase, 8);
+}
+
+static int __devinit init_setup_aec62xx(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_aec6x80(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ unsigned long bar4reg = pci_resource_start(dev, 4);
+
+ if (inb(bar4reg+2) & 0x10) {
+ strcpy(d->name, "AEC6880");
+ if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
+ strcpy(d->name, "AEC6880R");
+ } else {
+ strcpy(d->name, "AEC6280");
+ if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
+ strcpy(d->name, "AEC6280R");
+ }
+
+ return ide_setup_pci_device(dev, d);
+}
+
+static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "AEC6210",
+ .init_setup = init_setup_aec62xx,
+ .init_chipset = init_chipset_aec62xx,
+ .init_hwif = init_hwif_aec62xx,
+ .init_dma = init_dma_aec62xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
+ .bootable = OFF_BOARD,
+ },{ /* 1 */
+ .name = "AEC6260",
+ .init_setup = init_setup_aec62xx,
+ .init_chipset = init_chipset_aec62xx,
+ .init_hwif = init_hwif_aec62xx,
+ .init_dma = init_dma_aec62xx,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 2 */
+ .name = "AEC6260R",
+ .init_setup = init_setup_aec62xx,
+ .init_chipset = init_chipset_aec62xx,
+ .init_hwif = init_hwif_aec62xx,
+ .init_dma = init_dma_aec62xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
+ .bootable = NEVER_BOARD,
+ },{ /* 3 */
+ .name = "AEC6X80",
+ .init_setup = init_setup_aec6x80,
+ .init_chipset = init_chipset_aec62xx,
+ .init_hwif = init_hwif_aec62xx,
+ .init_dma = init_dma_aec62xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 4 */
+ .name = "AEC6X80R",
+ .init_setup = init_setup_aec6x80,
+ .init_chipset = init_chipset_aec62xx,
+ .init_hwif = init_hwif_aec62xx,
+ .init_dma = init_dma_aec62xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
+ .bootable = OFF_BOARD,
+ }
+};
+
+/**
+ * aec62xx_init_one - called when a AEC is found
+ * @dev: the aec62xx device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &aec62xx_chipsets[id->driver_data];
+
+ return d->init_setup(dev, d);
+}
+
+static struct pci_device_id aec62xx_pci_tbl[] = {
+ { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
+ { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
+ { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
+ { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "AEC62xx_IDE",
+ .id_table = aec62xx_pci_tbl,
+ .probe = aec62xx_init_one,
+};
+
+static int aec62xx_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(aec62xx_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
new file mode 100644
index 0000000..67efb38
--- /dev/null
+++ b/drivers/ide/pci/alim15x3.c
@@ -0,0 +1,913 @@
+/*
+ * 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>
+ *
+ * (U)DMA capable version of ali 1533/1543(C), 1535(D)
+ *
+ **********************************************************************
+ * 9/7/99 --Parts from the above author are included and need to be
+ * converted into standard interface, once I finish the thought.
+ *
+ * Recent changes
+ * Don't use LBA48 mode on ALi <= 0xC4
+ * Don't poke 0x79 with a non ALi northbridge
+ * Don't flip undefined bits on newer chipsets (fix Fujitsu laptop hang)
+ * Allow UDMA6 on revisions > 0xC4
+ *
+ * Documentation
+ * Chipset documentation available under NDA only
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#define DISPLAY_ALI_TIMINGS
+
+/*
+ * ALi devices are not plug in. Otherwise these static values would
+ * need to go. They ought to go away anyway
+ */
+
+static u8 m5229_revision;
+static u8 chip_is_1543c_e;
+static struct pci_dev *isa_dev;
+
+#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS)
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static u8 ali_proc = 0;
+
+static struct pci_dev *bmide_dev;
+
+static char *fifo[4] = {
+ "FIFO Off",
+ "FIFO On ",
+ "DMA mode",
+ "PIO mode" };
+
+static char *udmaT[8] = {
+ "1.5T",
+ " 2T",
+ "2.5T",
+ " 3T",
+ "3.5T",
+ " 4T",
+ " 6T",
+ " 8T"
+};
+
+static char *channel_status[8] = {
+ "OK ",
+ "busy ",
+ "DRQ ",
+ "DRQ busy ",
+ "error ",
+ "error busy ",
+ "error DRQ ",
+ "error DRQ busy"
+};
+
+/**
+ * ali_get_info - generate proc file for ALi IDE
+ * @buffer: buffer to fill
+ * @addr: address of user start in buffer
+ * @offset: offset into 'file'
+ * @count: buffer count
+ *
+ * Walks the Ali devices and outputs summary data on the tuning and
+ * anything else that will help with debugging
+ */
+
+static int ali_get_info (char *buffer, char **addr, off_t offset, int count)
+{
+ unsigned long bibma;
+ u8 reg53h, reg5xh, reg5yh, reg5xh1, reg5yh1, c0, c1, rev, tmp;
+ char *q, *p = buffer;
+
+ /* fetch rev. */
+ pci_read_config_byte(bmide_dev, 0x08, &rev);
+ if (rev >= 0xc1) /* M1543C or newer */
+ udmaT[7] = " ???";
+ else
+ fifo[3] = " ??? ";
+
+ /* first fetch bibma: */
+
+ bibma = pci_resource_start(bmide_dev, 4);
+
+ /*
+ * at that point bibma+0x2 et bibma+0xa are byte
+ * registers to investigate:
+ */
+ c0 = inb(bibma + 0x02);
+ c1 = inb(bibma + 0x0a);
+
+ p += sprintf(p,
+ "\n Ali M15x3 Chipset.\n");
+ p += sprintf(p,
+ " ------------------\n");
+ pci_read_config_byte(bmide_dev, 0x78, ®53h);
+ p += sprintf(p, "PCI Clock: %d.\n", reg53h);
+
+ pci_read_config_byte(bmide_dev, 0x53, ®53h);
+ p += sprintf(p,
+ "CD_ROM FIFO:%s, CD_ROM DMA:%s\n",
+ (reg53h & 0x02) ? "Yes" : "No ",
+ (reg53h & 0x01) ? "Yes" : "No " );
+ pci_read_config_byte(bmide_dev, 0x74, ®53h);
+ p += sprintf(p,
+ "FIFO Status: contains %d Words, runs%s%s\n\n",
+ (reg53h & 0x3f),
+ (reg53h & 0x40) ? " OVERWR" : "",
+ (reg53h & 0x80) ? " OVERRD." : "." );
+
+ p += sprintf(p,
+ "-------------------primary channel"
+ "-------------------secondary channel"
+ "---------\n\n");
+
+ pci_read_config_byte(bmide_dev, 0x09, ®53h);
+ p += sprintf(p,
+ "channel status: %s"
+ " %s\n",
+ (reg53h & 0x20) ? "On " : "Off",
+ (reg53h & 0x10) ? "On " : "Off" );
+
+ p += sprintf(p,
+ "both channels togth: %s"
+ " %s\n",
+ (c0&0x80) ? "No " : "Yes",
+ (c1&0x80) ? "No " : "Yes" );
+
+ pci_read_config_byte(bmide_dev, 0x76, ®53h);
+ p += sprintf(p,
+ "Channel state: %s %s\n",
+ channel_status[reg53h & 0x07],
+ channel_status[(reg53h & 0x70) >> 4] );
+
+ pci_read_config_byte(bmide_dev, 0x58, ®5xh);
+ pci_read_config_byte(bmide_dev, 0x5c, ®5yh);
+ p += sprintf(p,
+ "Add. Setup Timing: %dT"
+ " %dT\n",
+ (reg5xh & 0x07) ? (reg5xh & 0x07) : 8,
+ (reg5yh & 0x07) ? (reg5yh & 0x07) : 8 );
+
+ pci_read_config_byte(bmide_dev, 0x59, ®5xh);
+ pci_read_config_byte(bmide_dev, 0x5d, ®5yh);
+ p += sprintf(p,
+ "Command Act. Count: %dT"
+ " %dT\n"
+ "Command Rec. Count: %dT"
+ " %dT\n\n",
+ (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8,
+ (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8,
+ (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16,
+ (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16 );
+
+ p += sprintf(p,
+ "----------------drive0-----------drive1"
+ "------------drive0-----------drive1------\n\n");
+ p += sprintf(p,
+ "DMA enabled: %s %s"
+ " %s %s\n",
+ (c0&0x20) ? "Yes" : "No ",
+ (c0&0x40) ? "Yes" : "No ",
+ (c1&0x20) ? "Yes" : "No ",
+ (c1&0x40) ? "Yes" : "No " );
+
+ pci_read_config_byte(bmide_dev, 0x54, ®5xh);
+ pci_read_config_byte(bmide_dev, 0x55, ®5yh);
+ q = "FIFO threshold: %2d Words %2d Words"
+ " %2d Words %2d Words\n";
+ if (rev < 0xc1) {
+ if ((rev == 0x20) &&
+ (pci_read_config_byte(bmide_dev, 0x4f, &tmp), (tmp &= 0x20))) {
+ p += sprintf(p, q, 8, 8, 8, 8);
+ } else {
+ p += sprintf(p, q,
+ (reg5xh & 0x03) + 12,
+ ((reg5xh & 0x30)>>4) + 12,
+ (reg5yh & 0x03) + 12,
+ ((reg5yh & 0x30)>>4) + 12 );
+ }
+ } else {
+ int t1 = (tmp = (reg5xh & 0x03)) ? (tmp << 3) : 4;
+ int t2 = (tmp = ((reg5xh & 0x30)>>4)) ? (tmp << 3) : 4;
+ int t3 = (tmp = (reg5yh & 0x03)) ? (tmp << 3) : 4;
+ int t4 = (tmp = ((reg5yh & 0x30)>>4)) ? (tmp << 3) : 4;
+ p += sprintf(p, q, t1, t2, t3, t4);
+ }
+
+#if 0
+ p += sprintf(p,
+ "FIFO threshold: %2d Words %2d Words"
+ " %2d Words %2d Words\n",
+ (reg5xh & 0x03) + 12,
+ ((reg5xh & 0x30)>>4) + 12,
+ (reg5yh & 0x03) + 12,
+ ((reg5yh & 0x30)>>4) + 12 );
+#endif
+
+ p += sprintf(p,
+ "FIFO mode: %s %s %s %s\n",
+ fifo[((reg5xh & 0x0c) >> 2)],
+ fifo[((reg5xh & 0xc0) >> 6)],
+ fifo[((reg5yh & 0x0c) >> 2)],
+ fifo[((reg5yh & 0xc0) >> 6)] );
+
+ pci_read_config_byte(bmide_dev, 0x5a, ®5xh);
+ pci_read_config_byte(bmide_dev, 0x5b, ®5xh1);
+ pci_read_config_byte(bmide_dev, 0x5e, ®5yh);
+ pci_read_config_byte(bmide_dev, 0x5f, ®5yh1);
+
+ p += sprintf(p,/*
+ "------------------drive0-----------drive1"
+ "------------drive0-----------drive1------\n")*/
+ "Dt RW act. Cnt %2dT %2dT"
+ " %2dT %2dT\n"
+ "Dt RW rec. Cnt %2dT %2dT"
+ " %2dT %2dT\n\n",
+ (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8,
+ (reg5xh1 & 0x70) ? ((reg5xh1 & 0x70) >> 4) : 8,
+ (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8,
+ (reg5yh1 & 0x70) ? ((reg5yh1 & 0x70) >> 4) : 8,
+ (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16,
+ (reg5xh1 & 0x0f) ? (reg5xh1 & 0x0f) : 16,
+ (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16,
+ (reg5yh1 & 0x0f) ? (reg5yh1 & 0x0f) : 16 );
+
+ p += sprintf(p,
+ "-----------------------------------UDMA Timings"
+ "--------------------------------\n\n");
+
+ pci_read_config_byte(bmide_dev, 0x56, ®5xh);
+ pci_read_config_byte(bmide_dev, 0x57, ®5yh);
+ p += sprintf(p,
+ "UDMA: %s %s"
+ " %s %s\n"
+ "UDMA timings: %s %s"
+ " %s %s\n\n",
+ (reg5xh & 0x08) ? "OK" : "No",
+ (reg5xh & 0x80) ? "OK" : "No",
+ (reg5yh & 0x08) ? "OK" : "No",
+ (reg5yh & 0x80) ? "OK" : "No",
+ udmaT[(reg5xh & 0x07)],
+ udmaT[(reg5xh & 0x70) >> 4],
+ udmaT[reg5yh & 0x07],
+ udmaT[(reg5yh & 0x70) >> 4] );
+
+ return p-buffer; /* => must be less than 4k! */
+}
+#endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS) */
+
+/**
+ * ali15x3_tune_drive - set up a drive
+ * @drive: drive to tune
+ * @pio: unused
+ *
+ * Select the best PIO timing for the drive in question. Then
+ * program the controller for this drive set up
+ */
+
+static void ali15x3_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ ide_pio_data_t d;
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ int s_time, a_time, c_time;
+ u8 s_clc, a_clc, r_clc;
+ unsigned long flags;
+ int bus_speed = system_bus_clock();
+ int port = hwif->channel ? 0x5c : 0x58;
+ int portFIFO = hwif->channel ? 0x55 : 0x54;
+ u8 cd_dma_fifo = 0;
+ int unit = drive->select.b.unit & 1;
+
+ pio = ide_get_best_pio_mode(drive, pio, 5, &d);
+ s_time = ide_pio_timings[pio].setup_time;
+ a_time = ide_pio_timings[pio].active_time;
+ if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8)
+ s_clc = 0;
+ if ((a_clc = (a_time * bus_speed + 999) / 1000) >= 8)
+ a_clc = 0;
+ c_time = ide_pio_timings[pio].cycle_time;
+
+#if 0
+ if ((r_clc = ((c_time - s_time - a_time) * bus_speed + 999) / 1000) >= 16)
+ r_clc = 0;
+#endif
+
+ if (!(r_clc = (c_time * bus_speed + 999) / 1000 - a_clc - s_clc)) {
+ r_clc = 1;
+ } else {
+ if (r_clc >= 16)
+ r_clc = 0;
+ }
+ local_irq_save(flags);
+
+ /*
+ * PIO mode => ATA FIFO on, ATAPI FIFO off
+ */
+ pci_read_config_byte(dev, portFIFO, &cd_dma_fifo);
+ if (drive->media==ide_disk) {
+ if (unit) {
+ pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0x0F) | 0x50);
+ } else {
+ pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0xF0) | 0x05);
+ }
+ } else {
+ if (unit) {
+ pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0x0F);
+ } else {
+ pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0xF0);
+ }
+ }
+
+ pci_write_config_byte(dev, port, s_clc);
+ pci_write_config_byte(dev, port+drive->select.b.unit+2, (a_clc << 4) | r_clc);
+ local_irq_restore(flags);
+
+ /*
+ * setup active rec
+ * { 70, 165, 365 }, PIO Mode 0
+ * { 50, 125, 208 }, PIO Mode 1
+ * { 30, 100, 110 }, PIO Mode 2
+ * { 30, 80, 70 }, PIO Mode 3 with IORDY
+ * { 25, 70, 25 }, PIO Mode 4 with IORDY ns
+ * { 20, 50, 30 } PIO Mode 5 with IORDY (nonstandard)
+ */
+
+}
+
+/**
+ * ali15x3_can_ultra - check for ultra DMA support
+ * @drive: drive to do the check
+ *
+ * Check the drive and controller revisions. Return 0 if UDMA is
+ * not available, or 1 if UDMA can be used. The actual rules for
+ * the ALi are
+ * No UDMA on revisions <= 0x20
+ * Disk only for revisions < 0xC2
+ * Not WDC drives for revisions < 0xC2
+ *
+ * FIXME: WDC ifdef needs to die
+ */
+
+static u8 ali15x3_can_ultra (ide_drive_t *drive)
+{
+#ifndef CONFIG_WDC_ALI15X3
+ struct hd_driveid *id = drive->id;
+#endif /* CONFIG_WDC_ALI15X3 */
+
+ if (m5229_revision <= 0x20) {
+ return 0;
+ } else if ((m5229_revision < 0xC2) &&
+#ifndef CONFIG_WDC_ALI15X3
+ ((chip_is_1543c_e && strstr(id->model, "WDC ")) ||
+ (drive->media!=ide_disk))) {
+#else /* CONFIG_WDC_ALI15X3 */
+ (drive->media!=ide_disk)) {
+#endif /* CONFIG_WDC_ALI15X3 */
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+/**
+ * ali15x3_ratemask - generate DMA mode list
+ * @drive: drive to compute against
+ *
+ * Generate a list of the available DMA modes for the drive.
+ * FIXME: this function contains lots of bogus masking we can dump
+ *
+ * Return the highest available mode (UDMA33, UDMA66, UDMA100,..)
+ */
+
+static u8 ali15x3_ratemask (ide_drive_t *drive)
+{
+ u8 mode = 0, can_ultra = ali15x3_can_ultra(drive);
+
+ if (m5229_revision > 0xC4 && can_ultra) {
+ mode = 4;
+ } else if (m5229_revision == 0xC4 && can_ultra) {
+ mode = 3;
+ } else if (m5229_revision >= 0xC2 && can_ultra) {
+ mode = 2;
+ } else if (can_ultra) {
+ return 1;
+ } else {
+ return 0;
+ }
+
+ /*
+ * If the drive sees no suitable cable then UDMA 33
+ * is the highest permitted mode
+ */
+
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+/**
+ * ali15x3_tune_chipset - set up chiset for new speed
+ * @drive: drive to configure for
+ * @xferspeed: desired speed
+ *
+ * Configure the hardware for the desired IDE transfer mode.
+ * We also do the needed drive configuration through helpers
+ */
+
+static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 speed = ide_rate_filter(ali15x3_ratemask(drive), xferspeed);
+ u8 speed1 = speed;
+ u8 unit = (drive->select.b.unit & 0x01);
+ u8 tmpbyte = 0x00;
+ int m5229_udma = (hwif->channel) ? 0x57 : 0x56;
+
+ if (speed == XFER_UDMA_6)
+ speed1 = 0x47;
+
+ if (speed < XFER_UDMA_0) {
+ u8 ultra_enable = (unit) ? 0x7f : 0xf7;
+ /*
+ * clear "ultra enable" bit
+ */
+ pci_read_config_byte(dev, m5229_udma, &tmpbyte);
+ tmpbyte &= ultra_enable;
+ pci_write_config_byte(dev, m5229_udma, tmpbyte);
+
+ if (speed < XFER_SW_DMA_0)
+ ali15x3_tune_drive(drive, speed);
+ } else {
+ pci_read_config_byte(dev, m5229_udma, &tmpbyte);
+ tmpbyte &= (0x0f << ((1-unit) << 2));
+ /*
+ * enable ultra dma and set timing
+ */
+ tmpbyte |= ((0x08 | ((4-speed1)&0x07)) << (unit << 2));
+ pci_write_config_byte(dev, m5229_udma, tmpbyte);
+ if (speed >= XFER_UDMA_3) {
+ pci_read_config_byte(dev, 0x4b, &tmpbyte);
+ tmpbyte |= 1;
+ pci_write_config_byte(dev, 0x4b, tmpbyte);
+ }
+ }
+ return (ide_config_drive_speed(drive, speed));
+}
+
+
+/**
+ * config_chipset_for_dma - set up DMA mode
+ * @drive: drive to configure for
+ *
+ * Place a drive into DMA mode and tune the chipset for
+ * the selected speed.
+ *
+ * Returns true if DMA mode can be used
+ */
+
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, ali15x3_ratemask(drive));
+
+ if (!(speed))
+ return 0;
+
+ (void) ali15x3_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+/**
+ * ali15x3_config_drive_for_dma - configure for DMA
+ * @drive: drive to configure
+ *
+ * Configure a drive for DMA operation. If DMA is not possible we
+ * drop the drive into PIO mode instead.
+ *
+ * FIXME: exactly what are we trying to return here
+ */
+
+static int ali15x3_config_drive_for_dma(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ if ((m5229_revision<=0x20) && (drive->media!=ide_disk))
+ return hwif->ide_dma_off_quietly(drive);
+
+ drive->init_speed = 0;
+
+ if ((id != NULL) && ((id->capability & 1) != 0) && drive->autodma) {
+ /* Consult the list of known "bad" drives */
+ if (__ide_dma_bad_drive(drive))
+ goto ata_pio;
+ if ((id->field_valid & 4) && (m5229_revision >= 0xC2)) {
+ if (id->dma_ultra & hwif->ultra_mask) {
+ /* Force if Capable UltraDMA */
+ int dma = config_chipset_for_dma(drive);
+ if ((id->field_valid & 2) && !dma)
+ goto try_dma_modes;
+ }
+ } else if (id->field_valid & 2) {
+try_dma_modes:
+ if ((id->dma_mword & hwif->mwdma_mask) ||
+ (id->dma_1word & hwif->swdma_mask)) {
+ /* Force if Capable regular DMA modes */
+ if (!config_chipset_for_dma(drive))
+ goto no_dma_set;
+ }
+ } else if (__ide_dma_good_drive(drive) &&
+ (id->eide_dma_time < 150)) {
+ /* Consult the list of known "good" drives */
+ if (!config_chipset_for_dma(drive))
+ goto no_dma_set;
+ } else {
+ goto ata_pio;
+ }
+ } else {
+ata_pio:
+ hwif->tuneproc(drive, 255);
+no_dma_set:
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ return hwif->ide_dma_on(drive);
+}
+
+/**
+ * ali15x3_dma_setup - begin a DMA phase
+ * @drive: target device
+ *
+ * Returns 1 if the DMA cannot be performed, zero on success.
+ */
+
+static int ali15x3_dma_setup(ide_drive_t *drive)
+{
+ if (m5229_revision < 0xC2 && drive->media != ide_disk) {
+ if (rq_data_dir(drive->hwif->hwgroup->rq))
+ return 1; /* try PIO instead of DMA */
+ }
+ return ide_dma_setup(drive);
+}
+
+/**
+ * init_chipset_ali15x3 - Initialise an ALi IDE controller
+ * @dev: PCI device
+ * @name: Name of the controller
+ *
+ * This function initializes the ALI IDE controller and where
+ * appropriate also sets up the 1533 southbridge.
+ */
+
+static unsigned int __init init_chipset_ali15x3 (struct pci_dev *dev, const char *name)
+{
+ unsigned long flags;
+ u8 tmpbyte;
+ struct pci_dev *north = pci_find_slot(0, PCI_DEVFN(0,0));
+
+ pci_read_config_byte(dev, PCI_REVISION_ID, &m5229_revision);
+
+ isa_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
+
+#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS)
+ if (!ali_proc) {
+ ali_proc = 1;
+ bmide_dev = dev;
+ ide_pci_create_host_proc("ali", ali_get_info);
+ }
+#endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS) */
+
+ local_irq_save(flags);
+
+ if (m5229_revision < 0xC2) {
+ /*
+ * revision 0x20 (1543-E, 1543-F)
+ * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
+ * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
+ */
+ pci_read_config_byte(dev, 0x4b, &tmpbyte);
+ /*
+ * clear bit 7
+ */
+ pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
+ local_irq_restore(flags);
+ return 0;
+ }
+
+ /*
+ * 1543C-B?, 1535, 1535D, 1553
+ * Note 1: not all "motherboard" support this detection
+ * Note 2: if no udma 66 device, the detection may "error".
+ * but in this case, we will not set the device to
+ * ultra 66, the detection result is not important
+ */
+
+ /*
+ * enable "Cable Detection", m5229, 0x4b, bit3
+ */
+ pci_read_config_byte(dev, 0x4b, &tmpbyte);
+ pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
+
+ /*
+ * We should only tune the 1533 enable if we are using an ALi
+ * North bridge. We might have no north found on some zany
+ * box without a device at 0:0.0. The ALi bridge will be at
+ * 0:0.0 so if we didn't find one we know what is cooking.
+ */
+ if (north && north->vendor != PCI_VENDOR_ID_AL) {
+ local_irq_restore(flags);
+ return 0;
+ }
+
+ if (m5229_revision < 0xC5 && isa_dev)
+ {
+ /*
+ * set south-bridge's enable bit, m1533, 0x79
+ */
+
+ pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
+ if (m5229_revision == 0xC2) {
+ /*
+ * 1543C-B0 (m1533, 0x79, bit 2)
+ */
+ pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
+ } else if (m5229_revision >= 0xC3) {
+ /*
+ * 1553/1535 (m1533, 0x79, bit 1)
+ */
+ pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
+ }
+ }
+ local_irq_restore(flags);
+ return 0;
+}
+
+/**
+ * ata66_ali15x3 - check for UDMA 66 support
+ * @hwif: IDE interface
+ *
+ * This checks if the controller and the cable are capable
+ * of UDMA66 transfers. It doesn't check the drives.
+ * But see note 2 below!
+ *
+ * FIXME: frobs bits that are not defined on newer ALi devicea
+ */
+
+static unsigned int __init ata66_ali15x3 (ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ unsigned int ata66 = 0;
+ u8 cable_80_pin[2] = { 0, 0 };
+
+ unsigned long flags;
+ u8 tmpbyte;
+
+ local_irq_save(flags);
+
+ if (m5229_revision >= 0xC2) {
+ /*
+ * Ultra66 cable detection (from Host View)
+ * m5229, 0x4a, bit0: primary, bit1: secondary 80 pin
+ */
+ pci_read_config_byte(dev, 0x4a, &tmpbyte);
+ /*
+ * 0x4a, bit0 is 0 => primary channel
+ * has 80-pin (from host view)
+ */
+ if (!(tmpbyte & 0x01)) cable_80_pin[0] = 1;
+ /*
+ * 0x4a, bit1 is 0 => secondary channel
+ * has 80-pin (from host view)
+ */
+ if (!(tmpbyte & 0x02)) cable_80_pin[1] = 1;
+ /*
+ * Allow ata66 if cable of current channel has 80 pins
+ */
+ ata66 = (hwif->channel)?cable_80_pin[1]:cable_80_pin[0];
+ } else {
+ /*
+ * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
+ */
+ pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
+ chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
+ }
+
+ /*
+ * CD_ROM DMA on (m5229, 0x53, bit0)
+ * Enable this bit even if we want to use PIO
+ * PIO FIFO off (m5229, 0x53, bit1)
+ * The hardware will use 0x54h and 0x55h to control PIO FIFO
+ * (Not on later devices it seems)
+ *
+ * 0x53 changes meaning on later revs - we must no touch
+ * bit 1 on them. Need to check if 0x20 is the right break
+ */
+
+ pci_read_config_byte(dev, 0x53, &tmpbyte);
+
+ if(m5229_revision <= 0x20)
+ tmpbyte = (tmpbyte & (~0x02)) | 0x01;
+ else
+ tmpbyte |= 0x01;
+
+ pci_write_config_byte(dev, 0x53, tmpbyte);
+
+ local_irq_restore(flags);
+
+ return(ata66);
+}
+
+/**
+ * init_hwif_common_ali15x3 - Set up ALI IDE hardware
+ * @hwif: IDE interface
+ *
+ * Initialize the IDE structure side of the ALi 15x3 driver.
+ */
+
+static void __init init_hwif_common_ali15x3 (ide_hwif_t *hwif)
+{
+ hwif->autodma = 0;
+ hwif->tuneproc = &ali15x3_tune_drive;
+ hwif->speedproc = &ali15x3_tune_chipset;
+
+ /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
+ hwif->no_lba48_dma = (m5229_revision <= 0xC4) ? 1 : 0;
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->atapi_dma = 1;
+
+ if (m5229_revision > 0x20)
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (m5229_revision >= 0x20) {
+ /*
+ * M1543C or newer for DMAing
+ */
+ hwif->ide_dma_check = &ali15x3_config_drive_for_dma;
+ hwif->dma_setup = &ali15x3_dma_setup;
+ if (!noautodma)
+ hwif->autodma = 1;
+ if (!(hwif->udma_four))
+ hwif->udma_four = ata66_ali15x3(hwif);
+ }
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+/**
+ * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff
+ * @hwif: interface to configure
+ *
+ * Obtain the IRQ tables for an ALi based IDE solution on the PC
+ * class platforms. This part of the code isn't applicable to the
+ * Sparc systems
+ */
+
+static void __init init_hwif_ali15x3 (ide_hwif_t *hwif)
+{
+ u8 ideic, inmir;
+ s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6,
+ 1, 11, 0, 12, 0, 14, 0, 15 };
+ int irq = -1;
+
+ if (hwif->pci_dev->device == PCI_DEVICE_ID_AL_M5229)
+ hwif->irq = hwif->channel ? 15 : 14;
+
+ if (isa_dev) {
+ /*
+ * read IDE interface control
+ */
+ pci_read_config_byte(isa_dev, 0x58, &ideic);
+
+ /* bit0, bit1 */
+ ideic = ideic & 0x03;
+
+ /* get IRQ for IDE Controller */
+ if ((hwif->channel && ideic == 0x03) ||
+ (!hwif->channel && !ideic)) {
+ /*
+ * get SIRQ1 routing table
+ */
+ pci_read_config_byte(isa_dev, 0x44, &inmir);
+ inmir = inmir & 0x0f;
+ irq = irq_routing_table[inmir];
+ } else if (hwif->channel && !(ideic & 0x01)) {
+ /*
+ * get SIRQ2 routing table
+ */
+ pci_read_config_byte(isa_dev, 0x75, &inmir);
+ inmir = inmir & 0x0f;
+ irq = irq_routing_table[inmir];
+ }
+ if(irq >= 0)
+ hwif->irq = irq;
+ }
+
+ init_hwif_common_ali15x3(hwif);
+}
+
+/**
+ * init_dma_ali15x3 - set up DMA on ALi15x3
+ * @hwif: IDE interface
+ * @dmabase: DMA interface base PCI address
+ *
+ * Set up the DMA functionality on the ALi 15x3. For the ALi
+ * controllers this is generic so we can let the generic code do
+ * the actual work.
+ */
+
+static void __init init_dma_ali15x3 (ide_hwif_t *hwif, unsigned long dmabase)
+{
+ if (m5229_revision < 0x20)
+ return;
+ if (!(hwif->channel))
+ hwif->OUTB(hwif->INB(dmabase+2) & 0x60, dmabase+2);
+ ide_setup_dma(hwif, dmabase, 8);
+}
+
+static ide_pci_device_t ali15x3_chipset __devinitdata = {
+ .name = "ALI15X3",
+ .init_chipset = init_chipset_ali15x3,
+ .init_hwif = init_hwif_ali15x3,
+ .init_dma = init_dma_ali15x3,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+};
+
+/**
+ * alim15x3_init_one - set up an ALi15x3 IDE controller
+ * @dev: PCI device to set up
+ *
+ * Perform the actual set up for an ALi15x3 that has been found by the
+ * hot plug layer.
+ */
+
+static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &ali15x3_chipset;
+
+ if(pci_find_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, NULL))
+ printk(KERN_ERR "Warning: ATI Radeon IGP Northbridge is not yet fully tested.\n");
+
+#if defined(CONFIG_SPARC64)
+ d->init_hwif = init_hwif_common_ali15x3;
+#endif /* CONFIG_SPARC64 */
+ return ide_setup_pci_device(dev, d);
+}
+
+
+static struct pci_device_id alim15x3_pci_tbl[] = {
+ { PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5228, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "ALI15x3_IDE",
+ .id_table = alim15x3_pci_tbl,
+ .probe = alim15x3_init_one,
+};
+
+static int ali15x3_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(ali15x3_ide_init);
+
+MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox");
+MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
new file mode 100644
index 0000000..47225e3
--- /dev/null
+++ b/drivers/ide/pci/amd74xx.c
@@ -0,0 +1,543 @@
+/*
+ * Version 2.13
+ *
+ * AMD 755/756/766/8111 and nVidia nForce/2/2s/3/3s/CK804/MCP04
+ * IDE driver for Linux.
+ *
+ * Copyright (c) 2000-2002 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Andre Hedrick
+ */
+
+/*
+ * 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.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+#include <asm/io.h>
+
+#include "ide-timing.h"
+
+#define DISPLAY_AMD_TIMINGS
+
+#define AMD_IDE_ENABLE (0x00 + amd_config->base)
+#define AMD_IDE_CONFIG (0x01 + amd_config->base)
+#define AMD_CABLE_DETECT (0x02 + amd_config->base)
+#define AMD_DRIVE_TIMING (0x08 + amd_config->base)
+#define AMD_8BIT_TIMING (0x0e + amd_config->base)
+#define AMD_ADDRESS_SETUP (0x0c + amd_config->base)
+#define AMD_UDMA_TIMING (0x10 + amd_config->base)
+
+#define AMD_UDMA 0x07
+#define AMD_UDMA_33 0x01
+#define AMD_UDMA_66 0x02
+#define AMD_UDMA_100 0x03
+#define AMD_UDMA_133 0x04
+#define AMD_CHECK_SWDMA 0x08
+#define AMD_BAD_SWDMA 0x10
+#define AMD_BAD_FIFO 0x20
+#define AMD_CHECK_SERENADE 0x40
+
+/*
+ * AMD SouthBridge chips.
+ */
+
+static struct amd_ide_chip {
+ unsigned short id;
+ unsigned long base;
+ unsigned char flags;
+} amd_ide_chips[] = {
+ { PCI_DEVICE_ID_AMD_COBRA_7401, 0x40, AMD_UDMA_33 | AMD_BAD_SWDMA },
+ { PCI_DEVICE_ID_AMD_VIPER_7409, 0x40, AMD_UDMA_66 | AMD_CHECK_SWDMA },
+ { PCI_DEVICE_ID_AMD_VIPER_7411, 0x40, AMD_UDMA_100 | AMD_BAD_FIFO },
+ { PCI_DEVICE_ID_AMD_OPUS_7441, 0x40, AMD_UDMA_100 },
+ { PCI_DEVICE_ID_AMD_8111_IDE, 0x40, AMD_UDMA_133 | AMD_CHECK_SERENADE },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE_IDE, 0x50, AMD_UDMA_100 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE, 0x50, AMD_UDMA_133 },
+ { PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE, 0x50, AMD_UDMA_133 },
+ { 0 }
+};
+
+static struct amd_ide_chip *amd_config;
+static ide_pci_device_t *amd_chipset;
+static unsigned int amd_80w;
+static unsigned int amd_clock;
+
+static char *amd_dma[] = { "MWDMA16", "UDMA33", "UDMA66", "UDMA100", "UDMA133" };
+static unsigned char amd_cyc2udma[] = { 6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7 };
+
+/*
+ * AMD /proc entry.
+ */
+
+#ifdef CONFIG_PROC_FS
+
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static u8 amd74xx_proc;
+
+static unsigned char amd_udma2cyc[] = { 4, 6, 8, 10, 3, 2, 1, 15 };
+static unsigned long amd_base;
+static struct pci_dev *bmide_dev;
+extern int (*amd74xx_display_info)(char *, char **, off_t, int); /* ide-proc.c */
+
+#define amd_print(format, arg...) p += sprintf(p, format "\n" , ## arg)
+#define amd_print_drive(name, format, arg...)\
+ p += sprintf(p, name); for (i = 0; i < 4; i++) p += sprintf(p, format, ## arg); p += sprintf(p, "\n");
+
+static int amd74xx_get_info(char *buffer, char **addr, off_t offset, int count)
+{
+ int speed[4], cycle[4], setup[4], active[4], recover[4], den[4],
+ uen[4], udma[4], active8b[4], recover8b[4];
+ struct pci_dev *dev = bmide_dev;
+ unsigned int v, u, i;
+ unsigned short c, w;
+ unsigned char t;
+ int len;
+ char *p = buffer;
+
+ amd_print("----------AMD BusMastering IDE Configuration----------------");
+
+ amd_print("Driver Version: 2.13");
+ amd_print("South Bridge: %s", pci_name(bmide_dev));
+
+ pci_read_config_byte(dev, PCI_REVISION_ID, &t);
+ amd_print("Revision: IDE %#x", t);
+ amd_print("Highest DMA rate: %s", amd_dma[amd_config->flags & AMD_UDMA]);
+
+ amd_print("BM-DMA base: %#lx", amd_base);
+ amd_print("PCI clock: %d.%dMHz", amd_clock / 1000, amd_clock / 100 % 10);
+
+ amd_print("-----------------------Primary IDE-------Secondary IDE------");
+
+ pci_read_config_byte(dev, AMD_IDE_CONFIG, &t);
+ amd_print("Prefetch Buffer: %10s%20s", (t & 0x80) ? "yes" : "no", (t & 0x20) ? "yes" : "no");
+ amd_print("Post Write Buffer: %10s%20s", (t & 0x40) ? "yes" : "no", (t & 0x10) ? "yes" : "no");
+
+ pci_read_config_byte(dev, AMD_IDE_ENABLE, &t);
+ amd_print("Enabled: %10s%20s", (t & 0x02) ? "yes" : "no", (t & 0x01) ? "yes" : "no");
+
+ c = inb(amd_base + 0x02) | (inb(amd_base + 0x0a) << 8);
+ amd_print("Simplex only: %10s%20s", (c & 0x80) ? "yes" : "no", (c & 0x8000) ? "yes" : "no");
+
+ amd_print("Cable Type: %10s%20s", (amd_80w & 1) ? "80w" : "40w", (amd_80w & 2) ? "80w" : "40w");
+
+ if (!amd_clock)
+ return p - buffer;
+
+ amd_print("-------------------drive0----drive1----drive2----drive3-----");
+
+ pci_read_config_byte(dev, AMD_ADDRESS_SETUP, &t);
+ pci_read_config_dword(dev, AMD_DRIVE_TIMING, &v);
+ pci_read_config_word(dev, AMD_8BIT_TIMING, &w);
+ pci_read_config_dword(dev, AMD_UDMA_TIMING, &u);
+
+ for (i = 0; i < 4; i++) {
+ setup[i] = ((t >> ((3 - i) << 1)) & 0x3) + 1;
+ recover8b[i] = ((w >> ((1 - (i >> 1)) << 3)) & 0xf) + 1;
+ active8b[i] = ((w >> (((1 - (i >> 1)) << 3) + 4)) & 0xf) + 1;
+ active[i] = ((v >> (((3 - i) << 3) + 4)) & 0xf) + 1;
+ recover[i] = ((v >> ((3 - i) << 3)) & 0xf) + 1;
+
+ udma[i] = amd_udma2cyc[((u >> ((3 - i) << 3)) & 0x7)];
+ uen[i] = ((u >> ((3 - i) << 3)) & 0x40) ? 1 : 0;
+ den[i] = (c & ((i & 1) ? 0x40 : 0x20) << ((i & 2) << 2));
+
+ if (den[i] && uen[i] && udma[i] == 1) {
+ speed[i] = amd_clock * 3;
+ cycle[i] = 666666 / amd_clock;
+ continue;
+ }
+
+ if (den[i] && uen[i] && udma[i] == 15) {
+ speed[i] = amd_clock * 4;
+ cycle[i] = 500000 / amd_clock;
+ continue;
+ }
+
+ speed[i] = 4 * amd_clock / ((den[i] && uen[i]) ? udma[i] : (active[i] + recover[i]) * 2);
+ cycle[i] = 1000000 * ((den[i] && uen[i]) ? udma[i] : (active[i] + recover[i]) * 2) / amd_clock / 2;
+ }
+
+ amd_print_drive("Transfer Mode: ", "%10s", den[i] ? (uen[i] ? "UDMA" : "DMA") : "PIO");
+
+ amd_print_drive("Address Setup: ", "%8dns", 1000000 * setup[i] / amd_clock);
+ amd_print_drive("Cmd Active: ", "%8dns", 1000000 * active8b[i] / amd_clock);
+ amd_print_drive("Cmd Recovery: ", "%8dns", 1000000 * recover8b[i] / amd_clock);
+ amd_print_drive("Data Active: ", "%8dns", 1000000 * active[i] / amd_clock);
+ amd_print_drive("Data Recovery: ", "%8dns", 1000000 * recover[i] / amd_clock);
+ amd_print_drive("Cycle Time: ", "%8dns", cycle[i]);
+ amd_print_drive("Transfer Rate: ", "%4d.%dMB/s", speed[i] / 1000, speed[i] / 100 % 10);
+
+ /* hoping p - buffer is less than 4K... */
+ len = (p - buffer) - offset;
+ *addr = buffer + offset;
+
+ return len > count ? count : len;
+}
+
+#endif
+
+/*
+ * amd_set_speed() writes timing values to the chipset registers
+ */
+
+static void amd_set_speed(struct pci_dev *dev, unsigned char dn, struct ide_timing *timing)
+{
+ unsigned char t;
+
+ pci_read_config_byte(dev, AMD_ADDRESS_SETUP, &t);
+ t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
+ pci_write_config_byte(dev, AMD_ADDRESS_SETUP, t);
+
+ pci_write_config_byte(dev, AMD_8BIT_TIMING + (1 - (dn >> 1)),
+ ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1));
+
+ pci_write_config_byte(dev, AMD_DRIVE_TIMING + (3 - dn),
+ ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1));
+
+ switch (amd_config->flags & AMD_UDMA) {
+ case AMD_UDMA_33: t = timing->udma ? (0xc0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
+ case AMD_UDMA_66: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 2, 10)]) : 0x03; break;
+ case AMD_UDMA_100: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 10)]) : 0x03; break;
+ case AMD_UDMA_133: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 15)]) : 0x03; break;
+ default: return;
+ }
+
+ pci_write_config_byte(dev, AMD_UDMA_TIMING + (3 - dn), t);
+}
+
+/*
+ * amd_set_drive() computes timing values configures the drive and
+ * the chipset to a desired transfer mode. It also can be called
+ * by upper layers.
+ */
+
+static int amd_set_drive(ide_drive_t *drive, u8 speed)
+{
+ ide_drive_t *peer = HWIF(drive)->drives + (~drive->dn & 1);
+ struct ide_timing t, p;
+ int T, UT;
+
+ if (speed != XFER_PIO_SLOW && speed != drive->current_speed)
+ if (ide_config_drive_speed(drive, speed))
+ printk(KERN_WARNING "ide%d: Drive %d didn't accept speed setting. Oh, well.\n",
+ drive->dn >> 1, drive->dn & 1);
+
+ T = 1000000000 / amd_clock;
+ UT = T / min_t(int, max_t(int, amd_config->flags & AMD_UDMA, 1), 2);
+
+ ide_timing_compute(drive, speed, &t, T, UT);
+
+ if (peer->present) {
+ ide_timing_compute(peer, peer->current_speed, &p, T, UT);
+ ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
+ }
+
+ if (speed == XFER_UDMA_5 && amd_clock <= 33333) t.udma = 1;
+ if (speed == XFER_UDMA_6 && amd_clock <= 33333) t.udma = 15;
+
+ amd_set_speed(HWIF(drive)->pci_dev, drive->dn, &t);
+
+ if (!drive->init_speed)
+ drive->init_speed = speed;
+ drive->current_speed = speed;
+
+ return 0;
+}
+
+/*
+ * amd74xx_tune_drive() is a callback from upper layers for
+ * PIO-only tuning.
+ */
+
+static void amd74xx_tune_drive(ide_drive_t *drive, u8 pio)
+{
+ if (pio == 255) {
+ amd_set_drive(drive, ide_find_best_mode(drive, XFER_PIO | XFER_EPIO));
+ return;
+ }
+
+ amd_set_drive(drive, XFER_PIO_0 + min_t(byte, pio, 5));
+}
+
+/*
+ * amd74xx_dmaproc() is a callback from upper layers that can do
+ * a lot, but we use it for DMA/PIO tuning only, delegating everything
+ * else to the default ide_dmaproc().
+ */
+
+static int amd74xx_ide_dma_check(ide_drive_t *drive)
+{
+ int w80 = HWIF(drive)->udma_four;
+
+ u8 speed = ide_find_best_mode(drive,
+ XFER_PIO | XFER_EPIO | XFER_MWDMA | XFER_UDMA |
+ ((amd_config->flags & AMD_BAD_SWDMA) ? 0 : XFER_SWDMA) |
+ (w80 && (amd_config->flags & AMD_UDMA) >= AMD_UDMA_66 ? XFER_UDMA_66 : 0) |
+ (w80 && (amd_config->flags & AMD_UDMA) >= AMD_UDMA_100 ? XFER_UDMA_100 : 0) |
+ (w80 && (amd_config->flags & AMD_UDMA) >= AMD_UDMA_133 ? XFER_UDMA_133 : 0));
+
+ amd_set_drive(drive, speed);
+
+ if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
+ return HWIF(drive)->ide_dma_on(drive);
+ return HWIF(drive)->ide_dma_off_quietly(drive);
+}
+
+/*
+ * The initialization callback. Here we determine the IDE chip type
+ * and initialize its drive independent registers.
+ */
+
+static unsigned int __init init_chipset_amd74xx(struct pci_dev *dev, const char *name)
+{
+ unsigned char t;
+ unsigned int u;
+ int i;
+
+/*
+ * Check for bad SWDMA.
+ */
+
+ if (amd_config->flags & AMD_CHECK_SWDMA) {
+ pci_read_config_byte(dev, PCI_REVISION_ID, &t);
+ if (t <= 7)
+ amd_config->flags |= AMD_BAD_SWDMA;
+ }
+
+/*
+ * Check 80-wire cable presence.
+ */
+
+ switch (amd_config->flags & AMD_UDMA) {
+
+ case AMD_UDMA_133:
+ case AMD_UDMA_100:
+ pci_read_config_byte(dev, AMD_CABLE_DETECT, &t);
+ pci_read_config_dword(dev, AMD_UDMA_TIMING, &u);
+ amd_80w = ((t & 0x3) ? 1 : 0) | ((t & 0xc) ? 2 : 0);
+ for (i = 24; i >= 0; i -= 8)
+ if (((u >> i) & 4) && !(amd_80w & (1 << (1 - (i >> 4))))) {
+ printk(KERN_WARNING "%s: BIOS didn't set cable bits correctly. Enabling workaround.\n",
+ amd_chipset->name);
+ amd_80w |= (1 << (1 - (i >> 4)));
+ }
+ break;
+
+ case AMD_UDMA_66:
+ pci_read_config_dword(dev, AMD_UDMA_TIMING, &u);
+ for (i = 24; i >= 0; i -= 8)
+ if ((u >> i) & 4)
+ amd_80w |= (1 << (1 - (i >> 4)));
+ break;
+ }
+
+/*
+ * Take care of prefetch & postwrite.
+ */
+
+ pci_read_config_byte(dev, AMD_IDE_CONFIG, &t);
+ pci_write_config_byte(dev, AMD_IDE_CONFIG,
+ (amd_config->flags & AMD_BAD_FIFO) ? (t & 0x0f) : (t | 0xf0));
+
+/*
+ * Take care of incorrectly wired Serenade mainboards.
+ */
+
+ if ((amd_config->flags & AMD_CHECK_SERENADE) &&
+ dev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
+ dev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
+ amd_config->flags = AMD_UDMA_100;
+
+/*
+ * Determine the system bus clock.
+ */
+
+ amd_clock = system_bus_clock() * 1000;
+
+ switch (amd_clock) {
+ case 33000: amd_clock = 33333; break;
+ case 37000: amd_clock = 37500; break;
+ case 41000: amd_clock = 41666; break;
+ }
+
+ if (amd_clock < 20000 || amd_clock > 50000) {
+ printk(KERN_WARNING "%s: User given PCI clock speed impossible (%d), using 33 MHz instead.\n",
+ amd_chipset->name, amd_clock);
+ printk(KERN_WARNING "%s: Use ide0=ata66 if you want to assume 80-wire cable\n",
+ amd_chipset->name);
+ amd_clock = 33333;
+ }
+
+/*
+ * Print the boot message.
+ */
+
+ pci_read_config_byte(dev, PCI_REVISION_ID, &t);
+ printk(KERN_INFO "%s: %s (rev %02x) %s controller\n",
+ amd_chipset->name, pci_name(dev), t, amd_dma[amd_config->flags & AMD_UDMA]);
+
+/*
+ * Register /proc/ide/amd74xx entry
+ */
+
+#if defined(DISPLAY_AMD_TIMINGS) && defined(CONFIG_PROC_FS)
+ if (!amd74xx_proc) {
+ amd_base = pci_resource_start(dev, 4);
+ bmide_dev = dev;
+ ide_pci_create_host_proc("amd74xx", amd74xx_get_info);
+ amd74xx_proc = 1;
+ }
+#endif /* DISPLAY_AMD_TIMINGS && CONFIG_PROC_FS */
+
+ return dev->irq;
+}
+
+static void __init init_hwif_amd74xx(ide_hwif_t *hwif)
+{
+ int i;
+
+ if (hwif->irq == 0) /* 0 is bogus but will do for now */
+ hwif->irq = pci_get_legacy_ide_irq(hwif->pci_dev, hwif->channel);
+
+ hwif->autodma = 0;
+
+ hwif->tuneproc = &amd74xx_tune_drive;
+ hwif->speedproc = &amd_set_drive;
+
+ for (i = 0; i < 2; i++) {
+ hwif->drives[i].io_32bit = 1;
+ hwif->drives[i].unmask = 1;
+ hwif->drives[i].autotune = 1;
+ hwif->drives[i].dn = hwif->channel * 2 + i;
+ }
+
+ if (!hwif->dma_base)
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (!hwif->udma_four)
+ hwif->udma_four = (amd_80w >> hwif->channel) & 1;
+ hwif->ide_dma_check = &amd74xx_ide_dma_check;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+#define DECLARE_AMD_DEV(name_str) \
+ { \
+ .name = name_str, \
+ .init_chipset = init_chipset_amd74xx, \
+ .init_hwif = init_hwif_amd74xx, \
+ .channels = 2, \
+ .autodma = AUTODMA, \
+ .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \
+ .bootable = ON_BOARD, \
+ }
+
+#define DECLARE_NV_DEV(name_str) \
+ { \
+ .name = name_str, \
+ .init_chipset = init_chipset_amd74xx, \
+ .init_hwif = init_hwif_amd74xx, \
+ .channels = 2, \
+ .autodma = AUTODMA, \
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \
+ .bootable = ON_BOARD, \
+ }
+
+static ide_pci_device_t amd74xx_chipsets[] __devinitdata = {
+ /* 0 */ DECLARE_AMD_DEV("AMD7401"),
+ /* 1 */ DECLARE_AMD_DEV("AMD7409"),
+ /* 2 */ DECLARE_AMD_DEV("AMD7411"),
+ /* 3 */ DECLARE_AMD_DEV("AMD7441"),
+ /* 4 */ DECLARE_AMD_DEV("AMD8111"),
+
+ /* 5 */ DECLARE_NV_DEV("NFORCE"),
+ /* 6 */ DECLARE_NV_DEV("NFORCE2"),
+ /* 7 */ DECLARE_NV_DEV("NFORCE2-U400R"),
+ /* 8 */ DECLARE_NV_DEV("NFORCE2-U400R-SATA"),
+ /* 9 */ DECLARE_NV_DEV("NFORCE3-150"),
+ /* 10 */ DECLARE_NV_DEV("NFORCE3-250"),
+ /* 11 */ DECLARE_NV_DEV("NFORCE3-250-SATA"),
+ /* 12 */ DECLARE_NV_DEV("NFORCE3-250-SATA2"),
+ /* 13 */ DECLARE_NV_DEV("NFORCE-CK804"),
+ /* 14 */ DECLARE_NV_DEV("NFORCE-MCP04"),
+};
+
+static int __devinit amd74xx_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ amd_chipset = amd74xx_chipsets + id->driver_data;
+ amd_config = amd_ide_chips + id->driver_data;
+ if (dev->device != amd_config->id) {
+ printk(KERN_ERR "%s: assertion 0x%02x == 0x%02x failed !\n",
+ pci_name(dev), dev->device, amd_config->id);
+ return -ENODEV;
+ }
+ return ide_setup_pci_device(dev, amd_chipset);
+}
+
+static struct pci_device_id amd74xx_pci_tbl[] = {
+ { 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, 2 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_OPUS_7441, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
+#ifdef CONFIG_BLK_DEV_IDE_SATA
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
+#endif
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
+#ifdef CONFIG_BLK_DEV_IDE_SATA
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
+#endif
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13 },
+ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 14 },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, amd74xx_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "AMD_IDE",
+ .id_table = amd74xx_pci_tbl,
+ .probe = amd74xx_probe,
+};
+
+static int amd74xx_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(amd74xx_ide_init);
+
+MODULE_AUTHOR("Vojtech Pavlik");
+MODULE_DESCRIPTION("AMD PCI IDE driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c
new file mode 100644
index 0000000..df9ee9a
--- /dev/null
+++ b/drivers/ide/pci/atiixp.c
@@ -0,0 +1,370 @@
+/*
+ * 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/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#define ATIIXP_IDE_PIO_TIMING 0x40
+#define ATIIXP_IDE_MDMA_TIMING 0x44
+#define ATIIXP_IDE_PIO_CONTROL 0x48
+#define ATIIXP_IDE_PIO_MODE 0x4a
+#define ATIIXP_IDE_UDMA_CONTROL 0x54
+#define ATIIXP_IDE_UDMA_MODE 0x56
+
+typedef struct {
+ u8 command_width;
+ u8 recover_width;
+} atiixp_ide_timing;
+
+static atiixp_ide_timing pio_timing[] = {
+ { 0x05, 0x0d },
+ { 0x04, 0x07 },
+ { 0x03, 0x04 },
+ { 0x02, 0x02 },
+ { 0x02, 0x00 },
+};
+
+static atiixp_ide_timing mdma_timing[] = {
+ { 0x07, 0x07 },
+ { 0x02, 0x01 },
+ { 0x02, 0x00 },
+};
+
+static int save_mdma_mode[4];
+
+/**
+ * atiixp_ratemask - compute rate mask for ATIIXP IDE
+ * @drive: IDE drive to compute for
+ *
+ * Returns the available modes for the ATIIXP IDE controller.
+ */
+
+static u8 atiixp_ratemask(ide_drive_t *drive)
+{
+ u8 mode = 3;
+
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+/**
+ * atiixp_dma_2_pio - return the PIO mode matching DMA
+ * @xfer_rate: transfer speed
+ *
+ * Returns the nearest equivalent PIO timing for the PIO or DMA
+ * mode requested by the controller.
+ */
+
+static u8 atiixp_dma_2_pio(u8 xfer_rate) {
+ switch(xfer_rate) {
+ case XFER_UDMA_6:
+ case XFER_UDMA_5:
+ case XFER_UDMA_4:
+ case XFER_UDMA_3:
+ case XFER_UDMA_2:
+ case XFER_UDMA_1:
+ case XFER_UDMA_0:
+ case XFER_MW_DMA_2:
+ case XFER_PIO_4:
+ return 4;
+ case XFER_MW_DMA_1:
+ case XFER_PIO_3:
+ return 3;
+ case XFER_SW_DMA_2:
+ case XFER_PIO_2:
+ return 2;
+ case XFER_MW_DMA_0:
+ case XFER_SW_DMA_1:
+ case XFER_SW_DMA_0:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ case XFER_PIO_SLOW:
+ default:
+ return 0;
+ }
+}
+
+static int atiixp_ide_dma_host_on(ide_drive_t *drive)
+{
+ struct pci_dev *dev = drive->hwif->pci_dev;
+ unsigned long flags;
+ u16 tmp16;
+
+ spin_lock_irqsave(&ide_lock, flags);
+
+ pci_read_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, &tmp16);
+ if (save_mdma_mode[drive->dn])
+ tmp16 &= ~(1 << drive->dn);
+ else
+ tmp16 |= (1 << drive->dn);
+ pci_write_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, tmp16);
+
+ spin_unlock_irqrestore(&ide_lock, flags);
+
+ return __ide_dma_host_on(drive);
+}
+
+static int atiixp_ide_dma_host_off(ide_drive_t *drive)
+{
+ struct pci_dev *dev = drive->hwif->pci_dev;
+ unsigned long flags;
+ u16 tmp16;
+
+ spin_lock_irqsave(&ide_lock, flags);
+
+ pci_read_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, &tmp16);
+ tmp16 &= ~(1 << drive->dn);
+ pci_write_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, tmp16);
+
+ spin_unlock_irqrestore(&ide_lock, flags);
+
+ return __ide_dma_host_off(drive);
+}
+
+/**
+ * atiixp_tune_drive - tune a drive attached to a ATIIXP
+ * @drive: drive to tune
+ * @pio: desired PIO mode
+ *
+ * Set the interface PIO mode.
+ */
+
+static void atiixp_tuneproc(ide_drive_t *drive, u8 pio)
+{
+ struct pci_dev *dev = drive->hwif->pci_dev;
+ unsigned long flags;
+ int timing_shift = (drive->dn & 2) ? 16 : 0 + (drive->dn & 1) ? 0 : 8;
+ u32 pio_timing_data;
+ u16 pio_mode_data;
+
+ spin_lock_irqsave(&ide_lock, flags);
+
+ pci_read_config_word(dev, ATIIXP_IDE_PIO_MODE, &pio_mode_data);
+ pio_mode_data &= ~(0x07 << (drive->dn * 4));
+ pio_mode_data |= (pio << (drive->dn * 4));
+ pci_write_config_word(dev, ATIIXP_IDE_PIO_MODE, pio_mode_data);
+
+ pci_read_config_dword(dev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data);
+ pio_timing_data &= ~(0xff << timing_shift);
+ pio_timing_data |= (pio_timing[pio].recover_width << timing_shift) |
+ (pio_timing[pio].command_width << (timing_shift + 4));
+ pci_write_config_dword(dev, ATIIXP_IDE_PIO_TIMING, pio_timing_data);
+
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+/**
+ * atiixp_tune_chipset - tune a ATIIXP interface
+ * @drive: IDE drive to tune
+ * @xferspeed: speed to configure
+ *
+ * Set a ATIIXP interface channel to the desired speeds. This involves
+ * requires the right timing data into the ATIIXP configuration space
+ * then setting the drive parameters appropriately
+ */
+
+static int atiixp_speedproc(ide_drive_t *drive, u8 xferspeed)
+{
+ struct pci_dev *dev = drive->hwif->pci_dev;
+ unsigned long flags;
+ int timing_shift = (drive->dn & 2) ? 16 : 0 + (drive->dn & 1) ? 0 : 8;
+ u32 tmp32;
+ u16 tmp16;
+ u8 speed, pio;
+
+ speed = ide_rate_filter(atiixp_ratemask(drive), xferspeed);
+
+ spin_lock_irqsave(&ide_lock, flags);
+
+ save_mdma_mode[drive->dn] = 0;
+ if (speed >= XFER_UDMA_0) {
+ pci_read_config_word(dev, ATIIXP_IDE_UDMA_MODE, &tmp16);
+ tmp16 &= ~(0x07 << (drive->dn * 4));
+ tmp16 |= ((speed & 0x07) << (drive->dn * 4));
+ pci_write_config_word(dev, ATIIXP_IDE_UDMA_MODE, tmp16);
+ } else {
+ if ((speed >= XFER_MW_DMA_0) && (speed <= XFER_MW_DMA_2)) {
+ save_mdma_mode[drive->dn] = speed;
+ pci_read_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, &tmp32);
+ tmp32 &= ~(0xff << timing_shift);
+ tmp32 |= (mdma_timing[speed & 0x03].recover_width << timing_shift) |
+ (mdma_timing[speed & 0x03].command_width << (timing_shift + 4));
+ pci_write_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, tmp32);
+ }
+ }
+
+ spin_unlock_irqrestore(&ide_lock, flags);
+
+ if (speed >= XFER_SW_DMA_0)
+ pio = atiixp_dma_2_pio(speed);
+ else
+ pio = speed - XFER_PIO_0;
+
+ atiixp_tuneproc(drive, pio);
+
+ return ide_config_drive_speed(drive, speed);
+}
+
+/**
+ * atiixp_config_drive_for_dma - configure drive for DMA
+ * @drive: IDE drive to configure
+ *
+ * Set up a ATIIXP interface channel for the best available speed.
+ * We prefer UDMA if it is available and then MWDMA. If DMA is
+ * not available we switch to PIO and return 0.
+ */
+
+static int atiixp_config_drive_for_dma(ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, atiixp_ratemask(drive));
+
+ /* If no DMA speed was available then disable DMA and use PIO. */
+ if (!speed) {
+ u8 tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL);
+ speed = atiixp_dma_2_pio(XFER_PIO_0 + tspeed) + XFER_PIO_0;
+ }
+
+ (void) atiixp_speedproc(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+/**
+ * atiixp_dma_check - set up an IDE device
+ * @drive: IDE drive to configure
+ *
+ * Set up the ATIIXP interface for the best available speed on this
+ * interface, preferring DMA to PIO.
+ */
+
+static int atiixp_dma_check(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+ u8 tspeed, speed;
+
+ drive->init_speed = 0;
+
+ if ((id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (atiixp_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL);
+ speed = atiixp_dma_2_pio(XFER_PIO_0 + tspeed) + XFER_PIO_0;
+ hwif->speedproc(drive, speed);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+/**
+ * init_hwif_atiixp - fill in the hwif for the ATIIXP
+ * @hwif: IDE interface
+ *
+ * Set up the ide_hwif_t for the ATIIXP interface according to the
+ * capabilities of the hardware.
+ */
+
+static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
+{
+ if (!hwif->irq)
+ hwif->irq = hwif->channel ? 15 : 14;
+
+ hwif->autodma = 0;
+ hwif->tuneproc = &atiixp_tuneproc;
+ hwif->speedproc = &atiixp_speedproc;
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+
+ if (!hwif->dma_base)
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x3f;
+ hwif->mwdma_mask = 0x06;
+ hwif->swdma_mask = 0x04;
+
+ /* FIXME: proper cable detection needed */
+ hwif->udma_four = 1;
+ hwif->ide_dma_host_on = &atiixp_ide_dma_host_on;
+ hwif->ide_dma_host_off = &atiixp_ide_dma_host_off;
+ hwif->ide_dma_check = &atiixp_dma_check;
+ if (!noautodma)
+ hwif->autodma = 1;
+
+ hwif->drives[1].autodma = hwif->autodma;
+ hwif->drives[0].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t atiixp_pci_info[] __devinitdata = {
+ { /* 0 */
+ .name = "ATIIXP",
+ .init_hwif = init_hwif_atiixp,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
+ .bootable = ON_BOARD,
+ }
+};
+
+/**
+ * atiixp_init_one - called when a ATIIXP is found
+ * @dev: the atiixp device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &atiixp_pci_info[id->driver_data]);
+}
+
+static struct pci_device_id atiixp_pci_tbl[] = {
+ { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, atiixp_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "ATIIXP_IDE",
+ .id_table = atiixp_pci_tbl,
+ .probe = atiixp_init_one,
+};
+
+static int atiixp_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(atiixp_ide_init);
+
+MODULE_AUTHOR("HUI YU");
+MODULE_DESCRIPTION("PCI driver module for ATI IXP IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
new file mode 100644
index 0000000..92a2b7c
--- /dev/null
+++ b/drivers/ide/pci/cmd640.c
@@ -0,0 +1,879 @@
+/*
+ * linux/drivers/ide/pci/cmd640.c Version 1.02 Sep 01, 1996
+ *
+ * Copyright (C) 1995-1996 Linus Torvalds & authors (see below)
+ */
+
+/*
+ * Original authors: abramov@cecmow.enet.dec.com (Igor Abramov)
+ * mlord@pobox.com (Mark Lord)
+ *
+ * See linux/MAINTAINERS for address of current maintainer.
+ *
+ * This file provides support for the advanced features and bugs
+ * of IDE interfaces using the CMD Technologies 0640 IDE interface chip.
+ *
+ * These chips are basically fucked by design, and getting this driver
+ * to work on every motherboard design that uses this screwed chip seems
+ * bloody well impossible. However, we're still trying.
+ *
+ * Version 0.97 worked for everybody.
+ *
+ * User feedback is essential. Many thanks to the beta test team:
+ *
+ * A.Hartgers@stud.tue.nl, JZDQC@CUNYVM.CUNY.edu, abramov@cecmow.enet.dec.com,
+ * bardj@utopia.ppp.sn.no, bart@gaga.tue.nl, bbol001@cs.auckland.ac.nz,
+ * chrisc@dbass.demon.co.uk, dalecki@namu26.Num.Math.Uni-Goettingen.de,
+ * derekn@vw.ece.cmu.edu, florian@btp2x3.phy.uni-bayreuth.de,
+ * flynn@dei.unipd.it, gadio@netvision.net.il, godzilla@futuris.net,
+ * j@pobox.com, jkemp1@mises.uni-paderborn.de, jtoppe@hiwaay.net,
+ * kerouac@ssnet.com, meskes@informatik.rwth-aachen.de, hzoli@cs.elte.hu,
+ * peter@udgaard.isgtec.com, phil@tazenda.demon.co.uk, roadcapw@cfw.com,
+ * s0033las@sun10.vsz.bme.hu, schaffer@tam.cornell.edu, sjd@slip.net,
+ * steve@ei.org, ulrpeg@bigcomm.gun.de, ism@tardis.ed.ac.uk, mack@cray.com
+ * liug@mama.indstate.edu, and others.
+ *
+ * Version 0.01 Initial version, hacked out of ide.c,
+ * and #include'd rather than compiled separately.
+ * This will get cleaned up in a subsequent release.
+ *
+ * Version 0.02 Fixes for vlb initialization code, enable prefetch
+ * for versions 'B' and 'C' of chip by default,
+ * some code cleanup.
+ *
+ * Version 0.03 Added reset of secondary interface,
+ * and black list for devices which are not compatible
+ * with prefetch mode. Separate function for setting
+ * prefetch is added, possibly it will be called some
+ * day from ioctl processing code.
+ *
+ * Version 0.04 Now configs/compiles separate from ide.c
+ *
+ * Version 0.05 Major rewrite of interface timing code.
+ * Added new function cmd640_set_mode to set PIO mode
+ * from ioctl call. New drives added to black list.
+ *
+ * Version 0.06 More code cleanup. Prefetch is enabled only for
+ * detected hard drives, not included in prefetch
+ * black list.
+ *
+ * Version 0.07 Changed to more conservative drive tuning policy.
+ * Unknown drives, which report PIO < 4 are set to
+ * (reported_PIO - 1) if it is supported, or to PIO0.
+ * List of known drives extended by info provided by
+ * CMD at their ftp site.
+ *
+ * Version 0.08 Added autotune/noautotune support.
+ *
+ * Version 0.09 Try to be smarter about 2nd port enabling.
+ * Version 0.10 Be nice and don't reset 2nd port.
+ * Version 0.11 Try to handle more weird situations.
+ *
+ * Version 0.12 Lots of bug fixes from Laszlo Peter
+ * irq unmasking disabled for reliability.
+ * try to be even smarter about the second port.
+ * tidy up source code formatting.
+ * Version 0.13 permit irq unmasking again.
+ * Version 0.90 massive code cleanup, some bugs fixed.
+ * defaults all drives to PIO mode0, prefetch off.
+ * autotune is OFF by default, with compile time flag.
+ * prefetch can be turned OFF/ON using "hdparm -p8/-p9"
+ * (requires hdparm-3.1 or newer)
+ * Version 0.91 first release to linux-kernel list.
+ * Version 0.92 move initial reg dump to separate callable function
+ * change "readahead" to "prefetch" to avoid confusion
+ * Version 0.95 respect original BIOS timings unless autotuning.
+ * tons of code cleanup and rearrangement.
+ * added CONFIG_BLK_DEV_CMD640_ENHANCED option
+ * prevent use of unmask when prefetch is on
+ * Version 0.96 prevent use of io_32bit when prefetch is off
+ * Version 0.97 fix VLB secondary interface for sjd@slip.net
+ * other minor tune-ups: 0.96 was very good.
+ * Version 0.98 ignore PCI version when disabled by BIOS
+ * Version 0.99 display setup/active/recovery clocks with PIO mode
+ * Version 1.00 Mmm.. cannot depend on PCMD_ENA in all systems
+ * Version 1.01 slow/fast devsel can be selected with "hdparm -p6/-p7"
+ * ("fast" is necessary for 32bit I/O in some systems)
+ * Version 1.02 fix bug that resulted in slow "setup times"
+ * (patch courtesy of Zoltan Hidvegi)
+ */
+
+#undef REALLY_SLOW_IO /* most systems can safely undef this */
+#define CMD640_PREFETCH_MASKS 1
+
+//#define CMD640_DUMP_REGS
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+/*
+ * This flag is set in ide.c by the parameter: ide0=cmd640_vlb
+ */
+int cmd640_vlb = 0;
+
+/*
+ * CMD640 specific registers definition.
+ */
+
+#define VID 0x00
+#define DID 0x02
+#define PCMD 0x04
+#define PCMD_ENA 0x01
+#define PSTTS 0x06
+#define REVID 0x08
+#define PROGIF 0x09
+#define SUBCL 0x0a
+#define BASCL 0x0b
+#define BaseA0 0x10
+#define BaseA1 0x14
+#define BaseA2 0x18
+#define BaseA3 0x1c
+#define INTLINE 0x3c
+#define INPINE 0x3d
+
+#define CFR 0x50
+#define CFR_DEVREV 0x03
+#define CFR_IDE01INTR 0x04
+#define CFR_DEVID 0x18
+#define CFR_AT_VESA_078h 0x20
+#define CFR_DSA1 0x40
+#define CFR_DSA0 0x80
+
+#define CNTRL 0x51
+#define CNTRL_DIS_RA0 0x40
+#define CNTRL_DIS_RA1 0x80
+#define CNTRL_ENA_2ND 0x08
+
+#define CMDTIM 0x52
+#define ARTTIM0 0x53
+#define DRWTIM0 0x54
+#define ARTTIM1 0x55
+#define DRWTIM1 0x56
+#define ARTTIM23 0x57
+#define ARTTIM23_DIS_RA2 0x04
+#define ARTTIM23_DIS_RA3 0x08
+#define DRWTIM23 0x58
+#define BRST 0x59
+
+/*
+ * Registers and masks for easy access by drive index:
+ */
+static u8 prefetch_regs[4] = {CNTRL, CNTRL, ARTTIM23, ARTTIM23};
+static u8 prefetch_masks[4] = {CNTRL_DIS_RA0, CNTRL_DIS_RA1, ARTTIM23_DIS_RA2, ARTTIM23_DIS_RA3};
+
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+
+static u8 arttim_regs[4] = {ARTTIM0, ARTTIM1, ARTTIM23, ARTTIM23};
+static u8 drwtim_regs[4] = {DRWTIM0, DRWTIM1, DRWTIM23, DRWTIM23};
+
+/*
+ * Current cmd640 timing values for each drive.
+ * The defaults for each are the slowest possible timings.
+ */
+static u8 setup_counts[4] = {4, 4, 4, 4}; /* Address setup count (in clocks) */
+static u8 active_counts[4] = {16, 16, 16, 16}; /* Active count (encoded) */
+static u8 recovery_counts[4] = {16, 16, 16, 16}; /* Recovery count (encoded) */
+
+#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
+
+/*
+ * These are initialized to point at the devices we control
+ */
+static ide_hwif_t *cmd_hwif0, *cmd_hwif1;
+static ide_drive_t *cmd_drives[4];
+
+/*
+ * Interface to access cmd640x registers
+ */
+static unsigned int cmd640_key;
+static void (*__put_cmd640_reg)(u16 reg, u8 val);
+static u8 (*__get_cmd640_reg)(u16 reg);
+
+/*
+ * This is read from the CFR reg, and is used in several places.
+ */
+static unsigned int cmd640_chip_version;
+
+/*
+ * The CMD640x chip does not support DWORD config write cycles, but some
+ * of the BIOSes use them to implement the config services.
+ * Therefore, we must use direct IO instead.
+ */
+
+/* PCI method 1 access */
+
+static void put_cmd640_reg_pci1 (u16 reg, u8 val)
+{
+ outl_p((reg & 0xfc) | cmd640_key, 0xcf8);
+ outb_p(val, (reg & 3) | 0xcfc);
+}
+
+static u8 get_cmd640_reg_pci1 (u16 reg)
+{
+ outl_p((reg & 0xfc) | cmd640_key, 0xcf8);
+ return inb_p((reg & 3) | 0xcfc);
+}
+
+/* PCI method 2 access (from CMD datasheet) */
+
+static void put_cmd640_reg_pci2 (u16 reg, u8 val)
+{
+ outb_p(0x10, 0xcf8);
+ outb_p(val, cmd640_key + reg);
+ outb_p(0, 0xcf8);
+}
+
+static u8 get_cmd640_reg_pci2 (u16 reg)
+{
+ u8 b;
+
+ outb_p(0x10, 0xcf8);
+ b = inb_p(cmd640_key + reg);
+ outb_p(0, 0xcf8);
+ return b;
+}
+
+/* VLB access */
+
+static void put_cmd640_reg_vlb (u16 reg, u8 val)
+{
+ outb_p(reg, cmd640_key);
+ outb_p(val, cmd640_key + 4);
+}
+
+static u8 get_cmd640_reg_vlb (u16 reg)
+{
+ outb_p(reg, cmd640_key);
+ return inb_p(cmd640_key + 4);
+}
+
+static u8 get_cmd640_reg(u16 reg)
+{
+ u8 b;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ b = __get_cmd640_reg(reg);
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return b;
+}
+
+static void put_cmd640_reg(u16 reg, u8 val)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ __put_cmd640_reg(reg,val);
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+static int __init match_pci_cmd640_device (void)
+{
+ const u8 ven_dev[4] = {0x95, 0x10, 0x40, 0x06};
+ unsigned int i;
+ for (i = 0; i < 4; i++) {
+ if (get_cmd640_reg(i) != ven_dev[i])
+ return 0;
+ }
+#ifdef STUPIDLY_TRUST_BROKEN_PCMD_ENA_BIT
+ if ((get_cmd640_reg(PCMD) & PCMD_ENA) == 0) {
+ printk("ide: cmd640 on PCI disabled by BIOS\n");
+ return 0;
+ }
+#endif /* STUPIDLY_TRUST_BROKEN_PCMD_ENA_BIT */
+ return 1; /* success */
+}
+
+/*
+ * Probe for CMD640x -- pci method 1
+ */
+static int __init probe_for_cmd640_pci1 (void)
+{
+ __get_cmd640_reg = get_cmd640_reg_pci1;
+ __put_cmd640_reg = put_cmd640_reg_pci1;
+ for (cmd640_key = 0x80000000;
+ cmd640_key <= 0x8000f800;
+ cmd640_key += 0x800) {
+ if (match_pci_cmd640_device())
+ return 1; /* success */
+ }
+ return 0;
+}
+
+/*
+ * Probe for CMD640x -- pci method 2
+ */
+static int __init probe_for_cmd640_pci2 (void)
+{
+ __get_cmd640_reg = get_cmd640_reg_pci2;
+ __put_cmd640_reg = put_cmd640_reg_pci2;
+ for (cmd640_key = 0xc000; cmd640_key <= 0xcf00; cmd640_key += 0x100) {
+ if (match_pci_cmd640_device())
+ return 1; /* success */
+ }
+ return 0;
+}
+
+/*
+ * Probe for CMD640x -- vlb
+ */
+static int __init probe_for_cmd640_vlb (void)
+{
+ u8 b;
+
+ __get_cmd640_reg = get_cmd640_reg_vlb;
+ __put_cmd640_reg = put_cmd640_reg_vlb;
+ cmd640_key = 0x178;
+ b = get_cmd640_reg(CFR);
+ if (b == 0xff || b == 0x00 || (b & CFR_AT_VESA_078h)) {
+ cmd640_key = 0x78;
+ b = get_cmd640_reg(CFR);
+ if (b == 0xff || b == 0x00 || !(b & CFR_AT_VESA_078h))
+ return 0;
+ }
+ return 1; /* success */
+}
+
+/*
+ * Returns 1 if an IDE interface/drive exists at 0x170,
+ * Returns 0 otherwise.
+ */
+static int __init secondary_port_responding (void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+
+ outb_p(0x0a, 0x170 + IDE_SELECT_OFFSET); /* select drive0 */
+ udelay(100);
+ if ((inb_p(0x170 + IDE_SELECT_OFFSET) & 0x1f) != 0x0a) {
+ outb_p(0x1a, 0x170 + IDE_SELECT_OFFSET); /* select drive1 */
+ udelay(100);
+ if ((inb_p(0x170 + IDE_SELECT_OFFSET) & 0x1f) != 0x1a) {
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return 0; /* nothing responded */
+ }
+ }
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return 1; /* success */
+}
+
+#ifdef CMD640_DUMP_REGS
+/*
+ * Dump out all cmd640 registers. May be called from ide.c
+ */
+static void cmd640_dump_regs (void)
+{
+ unsigned int reg = cmd640_vlb ? 0x50 : 0x00;
+
+ /* Dump current state of chip registers */
+ printk("ide: cmd640 internal register dump:");
+ for (; reg <= 0x59; reg++) {
+ if (!(reg & 0x0f))
+ printk("\n%04x:", reg);
+ printk(" %02x", get_cmd640_reg(reg));
+ }
+ printk("\n");
+}
+#endif
+
+/*
+ * Check whether prefetch is on for a drive,
+ * and initialize the unmask flags for safe operation.
+ */
+static void __init check_prefetch (unsigned int index)
+{
+ ide_drive_t *drive = cmd_drives[index];
+ u8 b = get_cmd640_reg(prefetch_regs[index]);
+
+ if (b & prefetch_masks[index]) { /* is prefetch off? */
+ drive->no_unmask = 0;
+ drive->no_io_32bit = 1;
+ drive->io_32bit = 0;
+ } else {
+#if CMD640_PREFETCH_MASKS
+ drive->no_unmask = 1;
+ drive->unmask = 0;
+#endif
+ drive->no_io_32bit = 0;
+ }
+}
+
+/*
+ * Figure out which devices we control
+ */
+static void __init setup_device_ptrs (void)
+{
+ unsigned int i;
+
+ cmd_hwif0 = &ide_hwifs[0]; /* default, if not found below */
+ cmd_hwif1 = &ide_hwifs[1]; /* default, if not found below */
+ for (i = 0; i < MAX_HWIFS; i++) {
+ ide_hwif_t *hwif = &ide_hwifs[i];
+ if (hwif->chipset == ide_unknown || hwif->chipset == ide_forced) {
+ if (hwif->io_ports[IDE_DATA_OFFSET] == 0x1f0)
+ cmd_hwif0 = hwif;
+ else if (hwif->io_ports[IDE_DATA_OFFSET] == 0x170)
+ cmd_hwif1 = hwif;
+ }
+ }
+ cmd_drives[0] = &cmd_hwif0->drives[0];
+ cmd_drives[1] = &cmd_hwif0->drives[1];
+ cmd_drives[2] = &cmd_hwif1->drives[0];
+ cmd_drives[3] = &cmd_hwif1->drives[1];
+}
+
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+
+/*
+ * Sets prefetch mode for a drive.
+ */
+static void set_prefetch_mode (unsigned int index, int mode)
+{
+ ide_drive_t *drive = cmd_drives[index];
+ int reg = prefetch_regs[index];
+ u8 b;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ b = __get_cmd640_reg(reg);
+ if (mode) { /* want prefetch on? */
+#if CMD640_PREFETCH_MASKS
+ drive->no_unmask = 1;
+ drive->unmask = 0;
+#endif
+ drive->no_io_32bit = 0;
+ b &= ~prefetch_masks[index]; /* enable prefetch */
+ } else {
+ drive->no_unmask = 0;
+ drive->no_io_32bit = 1;
+ drive->io_32bit = 0;
+ b |= prefetch_masks[index]; /* disable prefetch */
+ }
+ __put_cmd640_reg(reg, b);
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+/*
+ * Dump out current drive clocks settings
+ */
+static void display_clocks (unsigned int index)
+{
+ u8 active_count, recovery_count;
+
+ active_count = active_counts[index];
+ if (active_count == 1)
+ ++active_count;
+ recovery_count = recovery_counts[index];
+ if (active_count > 3 && recovery_count == 1)
+ ++recovery_count;
+ if (cmd640_chip_version > 1)
+ recovery_count += 1; /* cmd640b uses (count + 1)*/
+ printk(", clocks=%d/%d/%d\n", setup_counts[index], active_count, recovery_count);
+}
+
+/*
+ * Pack active and recovery counts into single byte representation
+ * used by controller
+ */
+inline static u8 pack_nibbles (u8 upper, u8 lower)
+{
+ return ((upper & 0x0f) << 4) | (lower & 0x0f);
+}
+
+/*
+ * This routine retrieves the initial drive timings from the chipset.
+ */
+static void __init retrieve_drive_counts (unsigned int index)
+{
+ u8 b;
+
+ /*
+ * Get the internal setup timing, and convert to clock count
+ */
+ b = get_cmd640_reg(arttim_regs[index]) & ~0x3f;
+ switch (b) {
+ case 0x00: b = 4; break;
+ case 0x80: b = 3; break;
+ case 0x40: b = 2; break;
+ default: b = 5; break;
+ }
+ setup_counts[index] = b;
+
+ /*
+ * Get the active/recovery counts
+ */
+ b = get_cmd640_reg(drwtim_regs[index]);
+ active_counts[index] = (b >> 4) ? (b >> 4) : 0x10;
+ recovery_counts[index] = (b & 0x0f) ? (b & 0x0f) : 0x10;
+}
+
+
+/*
+ * This routine writes the prepared setup/active/recovery counts
+ * for a drive into the cmd640 chipset registers to active them.
+ */
+static void program_drive_counts (unsigned int index)
+{
+ unsigned long flags;
+ u8 setup_count = setup_counts[index];
+ u8 active_count = active_counts[index];
+ u8 recovery_count = recovery_counts[index];
+
+ /*
+ * Set up address setup count and drive read/write timing registers.
+ * Primary interface has individual count/timing registers for
+ * each drive. Secondary interface has one common set of registers,
+ * so we merge the timings, using the slowest value for each timing.
+ */
+ if (index > 1) {
+ unsigned int mate;
+ if (cmd_drives[mate = index ^ 1]->present) {
+ if (setup_count < setup_counts[mate])
+ setup_count = setup_counts[mate];
+ if (active_count < active_counts[mate])
+ active_count = active_counts[mate];
+ if (recovery_count < recovery_counts[mate])
+ recovery_count = recovery_counts[mate];
+ }
+ }
+
+ /*
+ * Convert setup_count to internal chipset representation
+ */
+ switch (setup_count) {
+ case 4: setup_count = 0x00; break;
+ case 3: setup_count = 0x80; break;
+ case 1:
+ case 2: setup_count = 0x40; break;
+ default: setup_count = 0xc0; /* case 5 */
+ }
+
+ /*
+ * Now that everything is ready, program the new timings
+ */
+ spin_lock_irqsave(&ide_lock, flags);
+ /*
+ * Program the address_setup clocks into ARTTIM reg,
+ * and then the active/recovery counts into the DRWTIM reg
+ * (this converts counts of 16 into counts of zero -- okay).
+ */
+ setup_count |= __get_cmd640_reg(arttim_regs[index]) & 0x3f;
+ __put_cmd640_reg(arttim_regs[index], setup_count);
+ __put_cmd640_reg(drwtim_regs[index], pack_nibbles(active_count, recovery_count));
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+/*
+ * Set a specific pio_mode for a drive
+ */
+static void cmd640_set_mode (unsigned int index, u8 pio_mode, unsigned int cycle_time)
+{
+ int setup_time, active_time, recovery_time, clock_time;
+ u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count;
+ int bus_speed = system_bus_clock();
+
+ if (pio_mode > 5)
+ pio_mode = 5;
+ setup_time = ide_pio_timings[pio_mode].setup_time;
+ active_time = ide_pio_timings[pio_mode].active_time;
+ recovery_time = cycle_time - (setup_time + active_time);
+ clock_time = 1000 / bus_speed;
+ cycle_count = (cycle_time + clock_time - 1) / clock_time;
+
+ setup_count = (setup_time + clock_time - 1) / clock_time;
+
+ active_count = (active_time + clock_time - 1) / clock_time;
+ if (active_count < 2)
+ active_count = 2; /* minimum allowed by cmd640 */
+
+ recovery_count = (recovery_time + clock_time - 1) / clock_time;
+ recovery_count2 = cycle_count - (setup_count + active_count);
+ if (recovery_count2 > recovery_count)
+ recovery_count = recovery_count2;
+ if (recovery_count < 2)
+ recovery_count = 2; /* minimum allowed by cmd640 */
+ if (recovery_count > 17) {
+ active_count += recovery_count - 17;
+ recovery_count = 17;
+ }
+ if (active_count > 16)
+ active_count = 16; /* maximum allowed by cmd640 */
+ if (cmd640_chip_version > 1)
+ recovery_count -= 1; /* cmd640b uses (count + 1)*/
+ if (recovery_count > 16)
+ recovery_count = 16; /* maximum allowed by cmd640 */
+
+ setup_counts[index] = setup_count;
+ active_counts[index] = active_count;
+ recovery_counts[index] = recovery_count;
+
+ /*
+ * In a perfect world, we might set the drive pio mode here
+ * (using WIN_SETFEATURE) before continuing.
+ *
+ * But we do not, because:
+ * 1) this is the wrong place to do it (proper is do_special() in ide.c)
+ * 2) in practice this is rarely, if ever, necessary
+ */
+ program_drive_counts (index);
+}
+
+/*
+ * Drive PIO mode selection:
+ */
+static void cmd640_tune_drive (ide_drive_t *drive, u8 mode_wanted)
+{
+ u8 b;
+ ide_pio_data_t d;
+ unsigned int index = 0;
+
+ while (drive != cmd_drives[index]) {
+ if (++index > 3) {
+ printk("%s: bad news in cmd640_tune_drive\n", drive->name);
+ return;
+ }
+ }
+ switch (mode_wanted) {
+ case 6: /* set fast-devsel off */
+ case 7: /* set fast-devsel on */
+ mode_wanted &= 1;
+ b = get_cmd640_reg(CNTRL) & ~0x27;
+ if (mode_wanted)
+ b |= 0x27;
+ put_cmd640_reg(CNTRL, b);
+ printk("%s: %sabled cmd640 fast host timing (devsel)\n", drive->name, mode_wanted ? "en" : "dis");
+ return;
+
+ case 8: /* set prefetch off */
+ case 9: /* set prefetch on */
+ mode_wanted &= 1;
+ set_prefetch_mode(index, mode_wanted);
+ printk("%s: %sabled cmd640 prefetch\n", drive->name, mode_wanted ? "en" : "dis");
+ return;
+ }
+
+ (void) ide_get_best_pio_mode (drive, mode_wanted, 5, &d);
+ cmd640_set_mode (index, d.pio_mode, d.cycle_time);
+
+ printk ("%s: selected cmd640 PIO mode%d (%dns)%s",
+ drive->name,
+ d.pio_mode,
+ d.cycle_time,
+ d.overridden ? " (overriding vendor mode)" : "");
+ display_clocks(index);
+ return;
+}
+
+#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
+
+static int pci_conf1(void)
+{
+ u32 tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ outb(0x01, 0xCFB);
+ tmp = inl(0xCF8);
+ outl(0x80000000, 0xCF8);
+ if (inl(0xCF8) == 0x80000000) {
+ outl(tmp, 0xCF8);
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return 1;
+ }
+ outl(tmp, 0xCF8);
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return 0;
+}
+
+static int pci_conf2(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ outb(0x00, 0xCFB);
+ outb(0x00, 0xCF8);
+ outb(0x00, 0xCFA);
+ if (inb(0xCF8) == 0x00 && inb(0xCF8) == 0x00) {
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return 1;
+ }
+ spin_unlock_irqrestore(&ide_lock, flags);
+ return 0;
+}
+
+/*
+ * Probe for a cmd640 chipset, and initialize it if found. Called from ide.c
+ */
+int __init ide_probe_for_cmd640x (void)
+{
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+ int second_port_toggled = 0;
+#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
+ int second_port_cmd640 = 0;
+ const char *bus_type, *port2;
+ unsigned int index;
+ u8 b, cfr;
+
+ if (cmd640_vlb && probe_for_cmd640_vlb()) {
+ bus_type = "VLB";
+ } else {
+ cmd640_vlb = 0;
+ /* Find out what kind of PCI probing is supported otherwise
+ Justin Gibbs will sulk.. */
+ if (pci_conf1() && probe_for_cmd640_pci1())
+ bus_type = "PCI (type1)";
+ else if (pci_conf2() && probe_for_cmd640_pci2())
+ bus_type = "PCI (type2)";
+ else
+ return 0;
+ }
+ /*
+ * Undocumented magic (there is no 0x5b reg in specs)
+ */
+ put_cmd640_reg(0x5b, 0xbd);
+ if (get_cmd640_reg(0x5b) != 0xbd) {
+ printk(KERN_ERR "ide: cmd640 init failed: wrong value in reg 0x5b\n");
+ return 0;
+ }
+ put_cmd640_reg(0x5b, 0);
+
+#ifdef CMD640_DUMP_REGS
+ cmd640_dump_regs();
+#endif
+
+ /*
+ * Documented magic begins here
+ */
+ cfr = get_cmd640_reg(CFR);
+ cmd640_chip_version = cfr & CFR_DEVREV;
+ if (cmd640_chip_version == 0) {
+ printk ("ide: bad cmd640 revision: %d\n", cmd640_chip_version);
+ return 0;
+ }
+
+ /*
+ * Initialize data for primary port
+ */
+ setup_device_ptrs ();
+ printk("%s: buggy cmd640%c interface on %s, config=0x%02x\n",
+ cmd_hwif0->name, 'a' + cmd640_chip_version - 1, bus_type, cfr);
+ cmd_hwif0->chipset = ide_cmd640;
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+ cmd_hwif0->tuneproc = &cmd640_tune_drive;
+#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
+
+ /*
+ * Ensure compatibility by always using the slowest timings
+ * for access to the drive's command register block,
+ * and reset the prefetch burstsize to default (512 bytes).
+ *
+ * Maybe we need a way to NOT do these on *some* systems?
+ */
+ put_cmd640_reg(CMDTIM, 0);
+ put_cmd640_reg(BRST, 0x40);
+
+ /*
+ * Try to enable the secondary interface, if not already enabled
+ */
+ if (cmd_hwif1->noprobe) {
+ port2 = "not probed";
+ } else {
+ b = get_cmd640_reg(CNTRL);
+ if (secondary_port_responding()) {
+ if ((b & CNTRL_ENA_2ND)) {
+ second_port_cmd640 = 1;
+ port2 = "okay";
+ } else if (cmd640_vlb) {
+ second_port_cmd640 = 1;
+ port2 = "alive";
+ } else
+ port2 = "not cmd640";
+ } else {
+ put_cmd640_reg(CNTRL, b ^ CNTRL_ENA_2ND); /* toggle the bit */
+ if (secondary_port_responding()) {
+ second_port_cmd640 = 1;
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+ second_port_toggled = 1;
+#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
+ port2 = "enabled";
+ } else {
+ put_cmd640_reg(CNTRL, b); /* restore original setting */
+ port2 = "not responding";
+ }
+ }
+ }
+
+ /*
+ * Initialize data for secondary cmd640 port, if enabled
+ */
+ if (second_port_cmd640) {
+ cmd_hwif0->serialized = 1;
+ cmd_hwif1->serialized = 1;
+ cmd_hwif1->chipset = ide_cmd640;
+ cmd_hwif0->mate = cmd_hwif1;
+ cmd_hwif1->mate = cmd_hwif0;
+ cmd_hwif1->channel = 1;
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+ cmd_hwif1->tuneproc = &cmd640_tune_drive;
+#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
+ }
+ printk(KERN_INFO "%s: %sserialized, secondary interface %s\n", cmd_hwif1->name,
+ cmd_hwif0->serialized ? "" : "not ", port2);
+
+ /*
+ * Establish initial timings/prefetch for all drives.
+ * Do not unnecessarily disturb any prior BIOS setup of these.
+ */
+ for (index = 0; index < (2 + (second_port_cmd640 << 1)); index++) {
+ ide_drive_t *drive = cmd_drives[index];
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+ if (drive->autotune || ((index > 1) && second_port_toggled)) {
+ /*
+ * Reset timing to the slowest speed and turn off prefetch.
+ * This way, the drive identify code has a better chance.
+ */
+ setup_counts [index] = 4; /* max possible */
+ active_counts [index] = 16; /* max possible */
+ recovery_counts [index] = 16; /* max possible */
+ program_drive_counts (index);
+ set_prefetch_mode (index, 0);
+ printk("cmd640: drive%d timings/prefetch cleared\n", index);
+ } else {
+ /*
+ * Record timings/prefetch without changing them.
+ * This preserves any prior BIOS setup.
+ */
+ retrieve_drive_counts (index);
+ check_prefetch (index);
+ printk("cmd640: drive%d timings/prefetch(%s) preserved",
+ index, drive->no_io_32bit ? "off" : "on");
+ display_clocks(index);
+ }
+#else
+ /*
+ * Set the drive unmask flags to match the prefetch setting
+ */
+ check_prefetch (index);
+ printk("cmd640: drive%d timings/prefetch(%s) preserved\n",
+ index, drive->no_io_32bit ? "off" : "on");
+#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
+ }
+
+#ifdef CMD640_DUMP_REGS
+ cmd640_dump_regs();
+#endif
+ return 1;
+}
+
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
new file mode 100644
index 0000000..3de9ab8
--- /dev/null
+++ b/drivers/ide/pci/cmd64x.c
@@ -0,0 +1,821 @@
+/* $Id: cmd64x.c,v 1.21 2000/01/30 23:23:16
+ *
+ * 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>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#define DISPLAY_CMD64X_TIMINGS
+
+#define CMD_DEBUG 0
+
+#if CMD_DEBUG
+#define cmdprintk(x...) printk(x)
+#else
+#define cmdprintk(x...)
+#endif
+
+/*
+ * CMD64x specific registers definition.
+ */
+#define CFR 0x50
+#define CFR_INTR_CH0 0x02
+#define CNTRL 0x51
+#define CNTRL_DIS_RA0 0x40
+#define CNTRL_DIS_RA1 0x80
+#define CNTRL_ENA_2ND 0x08
+
+#define CMDTIM 0x52
+#define ARTTIM0 0x53
+#define DRWTIM0 0x54
+#define ARTTIM1 0x55
+#define DRWTIM1 0x56
+#define ARTTIM23 0x57
+#define ARTTIM23_DIS_RA2 0x04
+#define ARTTIM23_DIS_RA3 0x08
+#define ARTTIM23_INTR_CH1 0x10
+#define ARTTIM2 0x57
+#define ARTTIM3 0x57
+#define DRWTIM23 0x58
+#define DRWTIM2 0x58
+#define BRST 0x59
+#define DRWTIM3 0x5b
+
+#define BMIDECR0 0x70
+#define MRDMODE 0x71
+#define MRDMODE_INTR_CH0 0x04
+#define MRDMODE_INTR_CH1 0x08
+#define MRDMODE_BLK_CH0 0x10
+#define MRDMODE_BLK_CH1 0x20
+#define BMIDESR0 0x72
+#define UDIDETCR0 0x73
+#define DTPR0 0x74
+#define BMIDECR1 0x78
+#define BMIDECSR 0x79
+#define BMIDESR1 0x7A
+#define UDIDETCR1 0x7B
+#define DTPR1 0x7C
+
+#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS)
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static u8 cmd64x_proc = 0;
+
+#define CMD_MAX_DEVS 5
+
+static struct pci_dev *cmd_devs[CMD_MAX_DEVS];
+static int n_cmd_devs;
+
+static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index)
+{
+ char *p = buf;
+
+ u8 reg53 = 0, reg54 = 0, reg55 = 0, reg56 = 0; /* primary */
+ u8 reg57 = 0, reg58 = 0, reg5b; /* secondary */
+ u8 reg72 = 0, reg73 = 0; /* primary */
+ u8 reg7a = 0, reg7b = 0; /* secondary */
+ u8 reg50 = 0, reg71 = 0; /* extra */
+
+ p += sprintf(p, "\nController: %d\n", index);
+ p += sprintf(p, "CMD%x Chipset.\n", dev->device);
+ (void) pci_read_config_byte(dev, CFR, ®50);
+ (void) pci_read_config_byte(dev, ARTTIM0, ®53);
+ (void) pci_read_config_byte(dev, DRWTIM0, ®54);
+ (void) pci_read_config_byte(dev, ARTTIM1, ®55);
+ (void) pci_read_config_byte(dev, DRWTIM1, ®56);
+ (void) pci_read_config_byte(dev, ARTTIM2, ®57);
+ (void) pci_read_config_byte(dev, DRWTIM2, ®58);
+ (void) pci_read_config_byte(dev, DRWTIM3, ®5b);
+ (void) pci_read_config_byte(dev, MRDMODE, ®71);
+ (void) pci_read_config_byte(dev, BMIDESR0, ®72);
+ (void) pci_read_config_byte(dev, UDIDETCR0, ®73);
+ (void) pci_read_config_byte(dev, BMIDESR1, ®7a);
+ (void) pci_read_config_byte(dev, UDIDETCR1, ®7b);
+
+ p += sprintf(p, "--------------- Primary Channel "
+ "---------------- Secondary Channel "
+ "-------------\n");
+ p += sprintf(p, " %sabled "
+ " %sabled\n",
+ (reg72&0x80)?"dis":" en",
+ (reg7a&0x80)?"dis":" en");
+ p += sprintf(p, "--------------- drive0 "
+ "--------- drive1 -------- drive0 "
+ "---------- drive1 ------\n");
+ p += sprintf(p, "DMA enabled: %s %s"
+ " %s %s\n",
+ (reg72&0x20)?"yes":"no ", (reg72&0x40)?"yes":"no ",
+ (reg7a&0x20)?"yes":"no ", (reg7a&0x40)?"yes":"no ");
+
+ p += sprintf(p, "DMA Mode: %s(%s) %s(%s)",
+ (reg72&0x20)?((reg73&0x01)?"UDMA":" DMA"):" PIO",
+ (reg72&0x20)?(
+ ((reg73&0x30)==0x30)?(((reg73&0x35)==0x35)?"3":"0"):
+ ((reg73&0x20)==0x20)?(((reg73&0x25)==0x25)?"3":"1"):
+ ((reg73&0x10)==0x10)?(((reg73&0x15)==0x15)?"4":"2"):
+ ((reg73&0x00)==0x00)?(((reg73&0x05)==0x05)?"5":"2"):
+ "X"):"?",
+ (reg72&0x40)?((reg73&0x02)?"UDMA":" DMA"):" PIO",
+ (reg72&0x40)?(
+ ((reg73&0xC0)==0xC0)?(((reg73&0xC5)==0xC5)?"3":"0"):
+ ((reg73&0x80)==0x80)?(((reg73&0x85)==0x85)?"3":"1"):
+ ((reg73&0x40)==0x40)?(((reg73&0x4A)==0x4A)?"4":"2"):
+ ((reg73&0x00)==0x00)?(((reg73&0x0A)==0x0A)?"5":"2"):
+ "X"):"?");
+ p += sprintf(p, " %s(%s) %s(%s)\n",
+ (reg7a&0x20)?((reg7b&0x01)?"UDMA":" DMA"):" PIO",
+ (reg7a&0x20)?(
+ ((reg7b&0x30)==0x30)?(((reg7b&0x35)==0x35)?"3":"0"):
+ ((reg7b&0x20)==0x20)?(((reg7b&0x25)==0x25)?"3":"1"):
+ ((reg7b&0x10)==0x10)?(((reg7b&0x15)==0x15)?"4":"2"):
+ ((reg7b&0x00)==0x00)?(((reg7b&0x05)==0x05)?"5":"2"):
+ "X"):"?",
+ (reg7a&0x40)?((reg7b&0x02)?"UDMA":" DMA"):" PIO",
+ (reg7a&0x40)?(
+ ((reg7b&0xC0)==0xC0)?(((reg7b&0xC5)==0xC5)?"3":"0"):
+ ((reg7b&0x80)==0x80)?(((reg7b&0x85)==0x85)?"3":"1"):
+ ((reg7b&0x40)==0x40)?(((reg7b&0x4A)==0x4A)?"4":"2"):
+ ((reg7b&0x00)==0x00)?(((reg7b&0x0A)==0x0A)?"5":"2"):
+ "X"):"?" );
+ p += sprintf(p, "PIO Mode: %s %s"
+ " %s %s\n",
+ "?", "?", "?", "?");
+ p += sprintf(p, " %s %s\n",
+ (reg50 & CFR_INTR_CH0) ? "interrupting" : "polling ",
+ (reg57 & ARTTIM23_INTR_CH1) ? "interrupting" : "polling");
+ p += sprintf(p, " %s %s\n",
+ (reg71 & MRDMODE_INTR_CH0) ? "pending" : "clear ",
+ (reg71 & MRDMODE_INTR_CH1) ? "pending" : "clear");
+ p += sprintf(p, " %s %s\n",
+ (reg71 & MRDMODE_BLK_CH0) ? "blocked" : "enabled",
+ (reg71 & MRDMODE_BLK_CH1) ? "blocked" : "enabled");
+
+ return (char *)p;
+}
+
+static int cmd64x_get_info (char *buffer, char **addr, off_t offset, int count)
+{
+ char *p = buffer;
+ int i;
+
+ p += sprintf(p, "\n");
+ for (i = 0; i < n_cmd_devs; i++) {
+ struct pci_dev *dev = cmd_devs[i];
+ p = print_cmd64x_get_info(p, dev, i);
+ }
+ return p-buffer; /* => must be less than 4k! */
+}
+
+#endif /* defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS) */
+
+/*
+ * Registers and masks for easy access by drive index:
+ */
+#if 0
+static u8 prefetch_regs[4] = {CNTRL, CNTRL, ARTTIM23, ARTTIM23};
+static u8 prefetch_masks[4] = {CNTRL_DIS_RA0, CNTRL_DIS_RA1, ARTTIM23_DIS_RA2, ARTTIM23_DIS_RA3};
+#endif
+
+/*
+ * This routine writes the prepared setup/active/recovery counts
+ * for a drive into the cmd646 chipset registers to active them.
+ */
+static void program_drive_counts (ide_drive_t *drive, int setup_count, int active_count, int recovery_count)
+{
+ unsigned long flags;
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ ide_drive_t *drives = HWIF(drive)->drives;
+ u8 temp_b;
+ static const u8 setup_counts[] = {0x40, 0x40, 0x40, 0x80, 0, 0xc0};
+ static const u8 recovery_counts[] =
+ {15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0};
+ static const u8 arttim_regs[2][2] = {
+ { ARTTIM0, ARTTIM1 },
+ { ARTTIM23, ARTTIM23 }
+ };
+ static const u8 drwtim_regs[2][2] = {
+ { DRWTIM0, DRWTIM1 },
+ { DRWTIM2, DRWTIM3 }
+ };
+ int channel = (int) HWIF(drive)->channel;
+ int slave = (drives != drive); /* Is this really the best way to determine this?? */
+
+ cmdprintk("program_drive_count parameters = s(%d),a(%d),r(%d),p(%d)\n",
+ setup_count, active_count, recovery_count, drive->present);
+ /*
+ * Set up address setup count registers.
+ * Primary interface has individual count/timing registers for
+ * each drive. Secondary interface has one common set of registers,
+ * for address setup so we merge these timings, using the slowest
+ * value.
+ */
+ if (channel) {
+ drive->drive_data = setup_count;
+ setup_count = max(drives[0].drive_data,
+ drives[1].drive_data);
+ cmdprintk("Secondary interface, setup_count = %d\n",
+ setup_count);
+ }
+
+ /*
+ * Convert values to internal chipset representation
+ */
+ setup_count = (setup_count > 5) ? 0xc0 : (int) setup_counts[setup_count];
+ active_count &= 0xf; /* Remember, max value is 16 */
+ recovery_count = (int) recovery_counts[recovery_count];
+
+ cmdprintk("Final values = %d,%d,%d\n",
+ setup_count, active_count, recovery_count);
+
+ /*
+ * Now that everything is ready, program the new timings
+ */
+ local_irq_save(flags);
+ /*
+ * Program the address_setup clocks into ARTTIM reg,
+ * and then the active/recovery counts into the DRWTIM reg
+ */
+ (void) pci_read_config_byte(dev, arttim_regs[channel][slave], &temp_b);
+ (void) pci_write_config_byte(dev, arttim_regs[channel][slave],
+ ((u8) setup_count) | (temp_b & 0x3f));
+ (void) pci_write_config_byte(dev, drwtim_regs[channel][slave],
+ (u8) ((active_count << 4) | recovery_count));
+ cmdprintk ("Write %x to %x\n",
+ ((u8) setup_count) | (temp_b & 0x3f),
+ arttim_regs[channel][slave]);
+ cmdprintk ("Write %x to %x\n",
+ (u8) ((active_count << 4) | recovery_count),
+ drwtim_regs[channel][slave]);
+ local_irq_restore(flags);
+}
+
+/*
+ * Attempts to set the interface PIO mode.
+ * The preferred method of selecting PIO modes (e.g. mode 4) is
+ * "echo 'piomode:4' > /proc/ide/hdx/settings". Special cases are
+ * 8: prefetch off, 9: prefetch on, 255: auto-select best mode.
+ * Called with 255 at boot time.
+ */
+
+static void cmd64x_tuneproc (ide_drive_t *drive, u8 mode_wanted)
+{
+ int setup_time, active_time, recovery_time;
+ int clock_time, pio_mode, cycle_time;
+ u8 recovery_count2, cycle_count;
+ int setup_count, active_count, recovery_count;
+ int bus_speed = system_bus_clock();
+ /*byte b;*/
+ ide_pio_data_t d;
+
+ switch (mode_wanted) {
+ case 8: /* set prefetch off */
+ case 9: /* set prefetch on */
+ mode_wanted &= 1;
+ /*set_prefetch_mode(index, mode_wanted);*/
+ cmdprintk("%s: %sabled cmd640 prefetch\n",
+ drive->name, mode_wanted ? "en" : "dis");
+ return;
+ }
+
+ mode_wanted = ide_get_best_pio_mode (drive, mode_wanted, 5, &d);
+ pio_mode = d.pio_mode;
+ cycle_time = d.cycle_time;
+
+ /*
+ * I copied all this complicated stuff from cmd640.c and made a few
+ * minor changes. For now I am just going to pray that it is correct.
+ */
+ if (pio_mode > 5)
+ pio_mode = 5;
+ setup_time = ide_pio_timings[pio_mode].setup_time;
+ active_time = ide_pio_timings[pio_mode].active_time;
+ recovery_time = cycle_time - (setup_time + active_time);
+ clock_time = 1000 / bus_speed;
+ cycle_count = (cycle_time + clock_time - 1) / clock_time;
+
+ setup_count = (setup_time + clock_time - 1) / clock_time;
+
+ active_count = (active_time + clock_time - 1) / clock_time;
+
+ recovery_count = (recovery_time + clock_time - 1) / clock_time;
+ recovery_count2 = cycle_count - (setup_count + active_count);
+ if (recovery_count2 > recovery_count)
+ recovery_count = recovery_count2;
+ if (recovery_count > 16) {
+ active_count += recovery_count - 16;
+ recovery_count = 16;
+ }
+ if (active_count > 16)
+ active_count = 16; /* maximum allowed by cmd646 */
+
+ /*
+ * In a perfect world, we might set the drive pio mode here
+ * (using WIN_SETFEATURE) before continuing.
+ *
+ * But we do not, because:
+ * 1) this is the wrong place to do it
+ * (proper is do_special() in ide.c)
+ * 2) in practice this is rarely, if ever, necessary
+ */
+ program_drive_counts (drive, setup_count, active_count, recovery_count);
+
+ cmdprintk("%s: selected cmd646 PIO mode%d : %d (%dns)%s, "
+ "clocks=%d/%d/%d\n",
+ drive->name, pio_mode, mode_wanted, cycle_time,
+ d.overridden ? " (overriding vendor mode)" : "",
+ setup_count, active_count, recovery_count);
+}
+
+static u8 cmd64x_ratemask (ide_drive_t *drive)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 mode = 0;
+
+ switch(dev->device) {
+ case PCI_DEVICE_ID_CMD_649:
+ mode = 3;
+ break;
+ case PCI_DEVICE_ID_CMD_648:
+ mode = 2;
+ break;
+ case PCI_DEVICE_ID_CMD_643:
+ return 0;
+
+ case PCI_DEVICE_ID_CMD_646:
+ {
+ unsigned int class_rev = 0;
+ pci_read_config_dword(dev,
+ PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+ /*
+ * UltraDMA only supported on PCI646U and PCI646U2, which
+ * correspond to revisions 0x03, 0x05 and 0x07 respectively.
+ * Actually, although the CMD tech support people won't
+ * tell me the details, the 0x03 revision cannot support
+ * UDMA correctly without hardware modifications, and even
+ * then it only works with Quantum disks due to some
+ * hold time assumptions in the 646U part which are fixed
+ * in the 646U2.
+ *
+ * So we only do UltraDMA on revision 0x05 and 0x07 chipsets.
+ */
+ switch(class_rev) {
+ case 0x07:
+ case 0x05:
+ return 1;
+ case 0x03:
+ case 0x01:
+ default:
+ return 0;
+ }
+ }
+ }
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+static void config_cmd64x_chipset_for_pio (ide_drive_t *drive, u8 set_speed)
+{
+ u8 speed = 0x00;
+ u8 set_pio = ide_get_best_pio_mode(drive, 4, 5, NULL);
+
+ cmd64x_tuneproc(drive, set_pio);
+ speed = XFER_PIO_0 + set_pio;
+ if (set_speed)
+ (void) ide_config_drive_speed(drive, speed);
+}
+
+static void config_chipset_for_pio (ide_drive_t *drive, u8 set_speed)
+{
+ config_cmd64x_chipset_for_pio(drive, set_speed);
+}
+
+static int cmd64x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ u8 unit = (drive->select.b.unit & 0x01);
+ u8 regU = 0, pciU = (hwif->channel) ? UDIDETCR1 : UDIDETCR0;
+ u8 regD = 0, pciD = (hwif->channel) ? BMIDESR1 : BMIDESR0;
+
+ u8 speed = ide_rate_filter(cmd64x_ratemask(drive), xferspeed);
+
+ if (speed > XFER_PIO_4) {
+ (void) pci_read_config_byte(dev, pciD, ®D);
+ (void) pci_read_config_byte(dev, pciU, ®U);
+ regD &= ~(unit ? 0x40 : 0x20);
+ regU &= ~(unit ? 0xCA : 0x35);
+ (void) pci_write_config_byte(dev, pciD, regD);
+ (void) pci_write_config_byte(dev, pciU, regU);
+ (void) pci_read_config_byte(dev, pciD, ®D);
+ (void) pci_read_config_byte(dev, pciU, ®U);
+ }
+
+ switch(speed) {
+ case XFER_UDMA_5: regU |= (unit ? 0x0A : 0x05); break;
+ case XFER_UDMA_4: regU |= (unit ? 0x4A : 0x15); break;
+ case XFER_UDMA_3: regU |= (unit ? 0x8A : 0x25); break;
+ case XFER_UDMA_2: regU |= (unit ? 0x42 : 0x11); break;
+ case XFER_UDMA_1: regU |= (unit ? 0x82 : 0x21); break;
+ case XFER_UDMA_0: regU |= (unit ? 0xC2 : 0x31); break;
+ case XFER_MW_DMA_2: regD |= (unit ? 0x40 : 0x10); break;
+ case XFER_MW_DMA_1: regD |= (unit ? 0x80 : 0x20); break;
+ case XFER_MW_DMA_0: regD |= (unit ? 0xC0 : 0x30); break;
+ case XFER_SW_DMA_2: regD |= (unit ? 0x40 : 0x10); break;
+ case XFER_SW_DMA_1: regD |= (unit ? 0x80 : 0x20); break;
+ case XFER_SW_DMA_0: regD |= (unit ? 0xC0 : 0x30); break;
+ case XFER_PIO_4: cmd64x_tuneproc(drive, 4); break;
+ case XFER_PIO_3: cmd64x_tuneproc(drive, 3); break;
+ case XFER_PIO_2: cmd64x_tuneproc(drive, 2); break;
+ case XFER_PIO_1: cmd64x_tuneproc(drive, 1); break;
+ case XFER_PIO_0: cmd64x_tuneproc(drive, 0); break;
+
+ default:
+ return 1;
+ }
+
+ if (speed > XFER_PIO_4) {
+ (void) pci_write_config_byte(dev, pciU, regU);
+ regD |= (unit ? 0x40 : 0x20);
+ (void) pci_write_config_byte(dev, pciD, regD);
+ }
+
+ return (ide_config_drive_speed(drive, speed));
+}
+
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, cmd64x_ratemask(drive));
+
+ config_chipset_for_pio(drive, !speed);
+
+ if (!speed)
+ return 0;
+
+ if(ide_set_xfer_rate(drive, speed))
+ return 0;
+
+ if (!drive->init_speed)
+ drive->init_speed = speed;
+
+ return ide_dma_enable(drive);
+}
+
+static int cmd64x_config_drive_for_dma (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ if ((id != NULL) && ((id->capability & 1) != 0) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ config_chipset_for_pio(drive, 1);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+static int cmd64x_alt_dma_status (struct pci_dev *dev)
+{
+ switch(dev->device) {
+ case PCI_DEVICE_ID_CMD_648:
+ case PCI_DEVICE_ID_CMD_649:
+ return 1;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static int cmd64x_ide_dma_end (ide_drive_t *drive)
+{
+ u8 dma_stat = 0, dma_cmd = 0;
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ drive->waiting_for_dma = 0;
+ /* read DMA command state */
+ dma_cmd = hwif->INB(hwif->dma_command);
+ /* stop DMA */
+ hwif->OUTB((dma_cmd & ~1), hwif->dma_command);
+ /* get DMA status */
+ dma_stat = hwif->INB(hwif->dma_status);
+ /* clear the INTR & ERROR bits */
+ hwif->OUTB(dma_stat|6, hwif->dma_status);
+ if (cmd64x_alt_dma_status(dev)) {
+ u8 dma_intr = 0;
+ u8 dma_mask = (hwif->channel) ? ARTTIM23_INTR_CH1 :
+ CFR_INTR_CH0;
+ u8 dma_reg = (hwif->channel) ? ARTTIM2 : CFR;
+ (void) pci_read_config_byte(dev, dma_reg, &dma_intr);
+ /* clear the INTR bit */
+ (void) pci_write_config_byte(dev, dma_reg, dma_intr|dma_mask);
+ }
+ /* purge DMA mappings */
+ ide_destroy_dmatable(drive);
+ /* verify good DMA status */
+ return (dma_stat & 7) != 4;
+}
+
+static int cmd64x_ide_dma_test_irq (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 dma_alt_stat = 0, mask = (hwif->channel) ? MRDMODE_INTR_CH1 :
+ MRDMODE_INTR_CH0;
+ u8 dma_stat = hwif->INB(hwif->dma_status);
+
+ (void) pci_read_config_byte(dev, MRDMODE, &dma_alt_stat);
+#ifdef DEBUG
+ printk("%s: dma_stat: 0x%02x dma_alt_stat: "
+ "0x%02x mask: 0x%02x\n", drive->name,
+ dma_stat, dma_alt_stat, mask);
+#endif
+ if (!(dma_alt_stat & mask))
+ return 0;
+
+ /* return 1 if INTR asserted */
+ if ((dma_stat & 4) == 4)
+ return 1;
+
+ return 0;
+}
+
+/*
+ * ASUS P55T2P4D with CMD646 chipset revision 0x01 requires the old
+ * event order for DMA transfers.
+ */
+
+static int cmd646_1_ide_dma_end (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 dma_stat = 0, dma_cmd = 0;
+
+ drive->waiting_for_dma = 0;
+ /* get DMA status */
+ dma_stat = hwif->INB(hwif->dma_status);
+ /* read DMA command state */
+ dma_cmd = hwif->INB(hwif->dma_command);
+ /* stop DMA */
+ hwif->OUTB((dma_cmd & ~1), hwif->dma_command);
+ /* clear the INTR & ERROR bits */
+ hwif->OUTB(dma_stat|6, hwif->dma_status);
+ /* and free any DMA resources */
+ ide_destroy_dmatable(drive);
+ /* verify good DMA status */
+ return (dma_stat & 7) != 4;
+}
+
+static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const char *name)
+{
+ u32 class_rev = 0;
+ u8 mrdmode = 0;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+
+#ifdef __i386__
+ if (dev->resource[PCI_ROM_RESOURCE].start) {
+ pci_write_config_byte(dev, PCI_ROM_ADDRESS, dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+ printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name, dev->resource[PCI_ROM_RESOURCE].start);
+ }
+#endif
+
+ switch(dev->device) {
+ case PCI_DEVICE_ID_CMD_643:
+ break;
+ case PCI_DEVICE_ID_CMD_646:
+ printk(KERN_INFO "%s: chipset revision 0x%02X, ", name, class_rev);
+ switch(class_rev) {
+ case 0x07:
+ case 0x05:
+ printk("UltraDMA Capable");
+ break;
+ case 0x03:
+ printk("MultiWord DMA Force Limited");
+ break;
+ case 0x01:
+ default:
+ printk("MultiWord DMA Limited, IRQ workaround enabled");
+ break;
+ }
+ printk("\n");
+ break;
+ case PCI_DEVICE_ID_CMD_648:
+ case PCI_DEVICE_ID_CMD_649:
+ break;
+ default:
+ break;
+ }
+
+ /* Set a good latency timer and cache line size value. */
+ (void) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
+ /* FIXME: pci_set_master() to ensure a good latency timer value */
+
+ /* Setup interrupts. */
+ (void) pci_read_config_byte(dev, MRDMODE, &mrdmode);
+ mrdmode &= ~(0x30);
+ (void) pci_write_config_byte(dev, MRDMODE, mrdmode);
+
+ /* Use MEMORY READ LINE for reads.
+ * NOTE: Although not mentioned in the PCI0646U specs,
+ * these bits are write only and won't be read
+ * back as set or not. The PCI0646U2 specs clarify
+ * this point.
+ */
+ (void) pci_write_config_byte(dev, MRDMODE, mrdmode | 0x02);
+
+ /* Set reasonable active/recovery/address-setup values. */
+ (void) pci_write_config_byte(dev, ARTTIM0, 0x40);
+ (void) pci_write_config_byte(dev, DRWTIM0, 0x3f);
+ (void) pci_write_config_byte(dev, ARTTIM1, 0x40);
+ (void) pci_write_config_byte(dev, DRWTIM1, 0x3f);
+#ifdef __i386__
+ (void) pci_write_config_byte(dev, ARTTIM23, 0x1c);
+#else
+ (void) pci_write_config_byte(dev, ARTTIM23, 0x5c);
+#endif
+ (void) pci_write_config_byte(dev, DRWTIM23, 0x3f);
+ (void) pci_write_config_byte(dev, DRWTIM3, 0x3f);
+#ifdef CONFIG_PPC
+ (void) pci_write_config_byte(dev, UDIDETCR0, 0xf0);
+#endif /* CONFIG_PPC */
+
+#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS)
+
+ cmd_devs[n_cmd_devs++] = dev;
+
+ if (!cmd64x_proc) {
+ cmd64x_proc = 1;
+ ide_pci_create_host_proc("cmd64x", cmd64x_get_info);
+ }
+#endif /* DISPLAY_CMD64X_TIMINGS && CONFIG_PROC_FS */
+
+ return 0;
+}
+
+static unsigned int __devinit ata66_cmd64x(ide_hwif_t *hwif)
+{
+ u8 ata66 = 0, mask = (hwif->channel) ? 0x02 : 0x01;
+
+ switch(hwif->pci_dev->device) {
+ case PCI_DEVICE_ID_CMD_643:
+ case PCI_DEVICE_ID_CMD_646:
+ return ata66;
+ default:
+ break;
+ }
+ pci_read_config_byte(hwif->pci_dev, BMIDECSR, &ata66);
+ return (ata66 & mask) ? 1 : 0;
+}
+
+static void __devinit init_hwif_cmd64x(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ unsigned int class_rev;
+
+ hwif->autodma = 0;
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+
+ hwif->tuneproc = &cmd64x_tuneproc;
+ hwif->speedproc = &cmd64x_tune_chipset;
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->atapi_dma = 1;
+
+ hwif->ultra_mask = 0x3f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (dev->device == PCI_DEVICE_ID_CMD_643)
+ hwif->ultra_mask = 0x80;
+ if (dev->device == PCI_DEVICE_ID_CMD_646)
+ hwif->ultra_mask = (class_rev > 0x04) ? 0x07 : 0x80;
+ if (dev->device == PCI_DEVICE_ID_CMD_648)
+ hwif->ultra_mask = 0x1f;
+
+ hwif->ide_dma_check = &cmd64x_config_drive_for_dma;
+ if (!(hwif->udma_four))
+ hwif->udma_four = ata66_cmd64x(hwif);
+
+ if (dev->device == PCI_DEVICE_ID_CMD_646) {
+ hwif->chipset = ide_cmd646;
+ if (class_rev == 0x01) {
+ hwif->ide_dma_end = &cmd646_1_ide_dma_end;
+ } else {
+ hwif->ide_dma_end = &cmd64x_ide_dma_end;
+ hwif->ide_dma_test_irq = &cmd64x_ide_dma_test_irq;
+ }
+ } else {
+ hwif->ide_dma_end = &cmd64x_ide_dma_end;
+ hwif->ide_dma_test_irq = &cmd64x_ide_dma_test_irq;
+ }
+
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "CMD643",
+ .init_chipset = init_chipset_cmd64x,
+ .init_hwif = init_hwif_cmd64x,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 1 */
+ .name = "CMD646",
+ .init_chipset = init_chipset_cmd64x,
+ .init_hwif = init_hwif_cmd64x,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x00,0x00,0x00}, {0x51,0x80,0x80}},
+ .bootable = ON_BOARD,
+ },{ /* 2 */
+ .name = "CMD648",
+ .init_chipset = init_chipset_cmd64x,
+ .init_hwif = init_hwif_cmd64x,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 3 */
+ .name = "CMD649",
+ .init_chipset = init_chipset_cmd64x,
+ .init_hwif = init_hwif_cmd64x,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ }
+};
+
+static int __devinit cmd64x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &cmd64x_chipsets[id->driver_data]);
+}
+
+static struct pci_device_id cmd64x_pci_tbl[] = {
+ { 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, 2},
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, cmd64x_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "CMD64x_IDE",
+ .id_table = cmd64x_pci_tbl,
+ .probe = cmd64x_init_one,
+};
+
+static int cmd64x_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(cmd64x_ide_init);
+
+MODULE_AUTHOR("Eddie Dost, David Miller, Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for CMD64x IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
new file mode 100644
index 0000000..7dc2468
--- /dev/null
+++ b/drivers/ide/pci/cs5520.c
@@ -0,0 +1,274 @@
+/*
+ * 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.
+ *
+ * *** 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.
+ *
+ * For the avoidance of doubt the "preferred form" of this code is one which
+ * is in an open non patent encumbered format. Where cryptographic key signing
+ * forms part of the process of creating an executable the information
+ * including keys needed to generate an equivalently functional executable
+ * are deemed to be part of the source code.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+struct pio_clocks
+{
+ int address;
+ int assert;
+ int recovery;
+};
+
+static struct pio_clocks cs5520_pio_clocks[]={
+ {3, 6, 11},
+ {2, 5, 6},
+ {1, 4, 3},
+ {1, 3, 2},
+ {1, 2, 1}
+};
+
+static int cs5520_tune_chipset(ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *pdev = hwif->pci_dev;
+ u8 speed = min((u8)XFER_PIO_4, xferspeed);
+ int pio = speed;
+ u8 reg;
+ int controller = drive->dn > 1 ? 1 : 0;
+ int error;
+
+ switch(speed)
+ {
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ pio -= XFER_PIO_0;
+ break;
+ default:
+ pio = 0;
+ printk(KERN_ERR "cs55x0: bad ide timing.\n");
+ }
+
+ printk("PIO clocking = %d\n", pio);
+
+ /* FIXME: if DMA = 1 do we need to set the DMA bit here ? */
+
+ /* 8bit CAT/CRT - 8bit command timing for channel */
+ pci_write_config_byte(pdev, 0x62 + controller,
+ (cs5520_pio_clocks[pio].recovery << 4) |
+ (cs5520_pio_clocks[pio].assert));
+
+ /* 0x64 - 16bit Primary, 0x68 - 16bit Secondary */
+
+ /* FIXME: should these use address ? */
+ /* Data read timing */
+ pci_write_config_byte(pdev, 0x64 + 4*controller + (drive->dn&1),
+ (cs5520_pio_clocks[pio].recovery << 4) |
+ (cs5520_pio_clocks[pio].assert));
+ /* Write command timing */
+ pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1),
+ (cs5520_pio_clocks[pio].recovery << 4) |
+ (cs5520_pio_clocks[pio].assert));
+
+ /* Set the DMA enable/disable flag */
+ reg = inb(hwif->dma_base + 0x02 + 8*controller);
+ reg |= 1<<((drive->dn&1)+5);
+ outb(reg, hwif->dma_base + 0x02 + 8*controller);
+
+ error = ide_config_drive_speed(drive, speed);
+ /* ATAPI is harder so leave it for now */
+ if(!error && drive->media == ide_disk)
+ error = hwif->ide_dma_on(drive);
+
+ return error;
+}
+
+static void cs5520_tune_drive(ide_drive_t *drive, u8 pio)
+{
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ cs5520_tune_chipset(drive, (XFER_PIO_0 + pio));
+}
+
+static int cs5520_config_drive_xfer_rate(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+
+ /* Tune the drive for PIO modes up to PIO 4 */
+ cs5520_tune_drive(drive, 4);
+ /* Then tell the core to use DMA operations */
+ return hwif->ide_dma_on(drive);
+}
+
+/*
+ * We provide a callback for our nonstandard DMA location
+ */
+
+static void __devinit cs5520_init_setup_dma(struct pci_dev *dev, ide_pci_device_t *d, ide_hwif_t *hwif)
+{
+ unsigned long bmide = pci_resource_start(dev, 2); /* Not the usual 4 */
+ if(hwif->mate && hwif->mate->dma_base) /* Second channel at primary + 8 */
+ bmide += 8;
+ ide_setup_dma(hwif, bmide, 8);
+}
+
+/*
+ * We wrap the DMA activate to set the vdma flag. This is needed
+ * so that the IDE DMA layer issues PIO not DMA commands over the
+ * DMA channel
+ */
+
+static int cs5520_dma_on(ide_drive_t *drive)
+{
+ drive->vdma = 1;
+ return 0;
+}
+
+static void __devinit init_hwif_cs5520(ide_hwif_t *hwif)
+{
+ hwif->tuneproc = &cs5520_tune_drive;
+ hwif->speedproc = &cs5520_tune_chipset;
+ hwif->ide_dma_check = &cs5520_config_drive_xfer_rate;
+ hwif->ide_dma_on = &cs5520_dma_on;
+
+ if(!noautodma)
+ hwif->autodma = 1;
+
+ if(!hwif->dma_base)
+ {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->atapi_dma = 0;
+ hwif->ultra_mask = 0;
+ hwif->swdma_mask = 0;
+ hwif->mwdma_mask = 0;
+
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+#define DECLARE_CS_DEV(name_str) \
+ { \
+ .name = name_str, \
+ .init_setup_dma = cs5520_init_setup_dma, \
+ .init_hwif = init_hwif_cs5520, \
+ .channels = 2, \
+ .autodma = AUTODMA, \
+ .bootable = ON_BOARD, \
+ .flags = IDEPCI_FLAG_ISA_PORTS, \
+ }
+
+static ide_pci_device_t cyrix_chipsets[] __devinitdata = {
+ /* 0 */ DECLARE_CS_DEV("Cyrix 5510"),
+ /* 1 */ DECLARE_CS_DEV("Cyrix 5520")
+};
+
+/*
+ * The 5510/5520 are a bit weird. They don't quite set up the way
+ * the PCI helper layer expects so we must do much of the set up
+ * work longhand.
+ */
+
+static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ata_index_t index;
+ ide_pci_device_t *d = &cyrix_chipsets[id->driver_data];
+
+ ide_setup_pci_noise(dev, d);
+
+ /* We must not grab the entire device, it has 'ISA' space in its
+ BARS too and we will freak out other bits of the kernel */
+ if(pci_enable_device_bars(dev, 1<<2))
+ {
+ printk(KERN_WARNING "%s: Unable to enable 55x0.\n", d->name);
+ return 1;
+ }
+ pci_set_master(dev);
+ if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
+ printk(KERN_WARNING "cs5520: No suitable DMA available.\n");
+ return -ENODEV;
+ }
+
+ index.all = 0xf0f0;
+
+ /*
+ * Now the chipset is configured we can let the core
+ * do all the device setup for us
+ */
+
+ ide_pci_setup_ports(dev, d, 14, &index);
+
+ if((index.b.low & 0xf0) != 0xf0)
+ probe_hwif_init(&ide_hwifs[index.b.low]);
+ if((index.b.high & 0xf0) != 0xf0)
+ probe_hwif_init(&ide_hwifs[index.b.high]);
+ return 0;
+}
+
+static struct pci_device_id cs5520_pci_tbl[] = {
+ { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, cs5520_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "Cyrix_IDE",
+ .id_table = cs5520_pci_tbl,
+ .probe = cs5520_init_one,
+};
+
+static int cs5520_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(cs5520_ide_init);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("PCI driver module for Cyrix 5510/5520 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
new file mode 100644
index 0000000..0381961
--- /dev/null
+++ b/drivers/ide/pci/cs5530.c
@@ -0,0 +1,384 @@
+/*
+ * linux/drivers/ide/pci/cs5530.c Version 0.7 Sept 10, 2002
+ *
+ * Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org>
+ * Ditto of GNU General Public License.
+ *
+ * Copyright (C) 2000 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.
+ *
+ * Documentation:
+ * CS5530 documentation available from National Semiconductor.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+/**
+ * cs5530_xfer_set_mode - set a new transfer mode at the drive
+ * @drive: drive to tune
+ * @mode: new mode
+ *
+ * Logging wrapper to the IDE driver speed configuration. This can
+ * probably go away now.
+ */
+
+static int cs5530_set_xfer_mode (ide_drive_t *drive, u8 mode)
+{
+ printk(KERN_DEBUG "%s: cs5530_set_xfer_mode(%s)\n",
+ drive->name, ide_xfer_verbose(mode));
+ return (ide_config_drive_speed(drive, mode));
+}
+
+/*
+ * Here are the standard PIO mode 0-4 timings for each "format".
+ * Format-0 uses fast data reg timings, with slower command reg timings.
+ * Format-1 uses fast timings for all registers, but won't work with all drives.
+ */
+static unsigned int cs5530_pio_timings[2][5] = {
+ {0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010},
+ {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}
+};
+
+/*
+ * After chip reset, the PIO timings are set to 0x0000e132, which is not valid.
+ */
+#define CS5530_BAD_PIO(timings) (((timings)&~0x80000000)==0x0000e132)
+#define CS5530_BASEREG(hwif) (((hwif)->dma_base & ~0xf) + ((hwif)->channel ? 0x30 : 0x20))
+
+/**
+ * cs5530_tuneproc - select/set PIO modes
+ *
+ * cs5530_tuneproc() handles selection/setting of PIO modes
+ * for both the chipset and drive.
+ *
+ * The ide_init_cs5530() routine guarantees that all drives
+ * will have valid default PIO timings set up before we get here.
+ */
+
+static void cs5530_tuneproc (ide_drive_t *drive, u8 pio) /* pio=255 means "autotune" */
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned int format;
+ unsigned long basereg = CS5530_BASEREG(hwif);
+ static u8 modes[5] = { XFER_PIO_0, XFER_PIO_1, XFER_PIO_2, XFER_PIO_3, XFER_PIO_4};
+
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ if (!cs5530_set_xfer_mode(drive, modes[pio])) {
+ format = (hwif->INL(basereg+4) >> 31) & 1;
+ hwif->OUTL(cs5530_pio_timings[format][pio],
+ basereg+(drive->select.b.unit<<3));
+ }
+}
+
+/**
+ * cs5530_config_dma - select/set DMA and UDMA modes
+ * @drive: drive to tune
+ *
+ * cs5530_config_dma() handles selection/setting of DMA/UDMA modes
+ * for both the chipset and drive. The CS5530 has limitations about
+ * mixing DMA/UDMA on the same cable.
+ */
+
+static int cs5530_config_dma (ide_drive_t *drive)
+{
+ int udma_ok = 1, mode = 0;
+ ide_hwif_t *hwif = HWIF(drive);
+ int unit = drive->select.b.unit;
+ ide_drive_t *mate = &hwif->drives[unit^1];
+ struct hd_driveid *id = drive->id;
+ unsigned int reg, timings;
+ unsigned long basereg;
+
+ /*
+ * Default to DMA-off in case we run into trouble here.
+ */
+ hwif->ide_dma_off_quietly(drive);
+ /* turn off DMA while we fiddle */
+ hwif->ide_dma_host_off(drive);
+ /* clear DMA_capable bit */
+
+ /*
+ * The CS5530 specifies that two drives sharing a cable cannot
+ * mix UDMA/MDMA. It has to be one or the other, for the pair,
+ * though different timings can still be chosen for each drive.
+ * We could set the appropriate timing bits on the fly,
+ * but that might be a bit confusing. So, for now we statically
+ * handle this requirement by looking at our mate drive to see
+ * what it is capable of, before choosing a mode for our own drive.
+ *
+ * Note: This relies on the fact we never fail from UDMA to MWDMA_2
+ * but instead drop to PIO
+ */
+ if (mate->present) {
+ struct hd_driveid *mateid = mate->id;
+ if (mateid && (mateid->capability & 1) &&
+ !__ide_dma_bad_drive(mate)) {
+ if ((mateid->field_valid & 4) &&
+ (mateid->dma_ultra & 7))
+ udma_ok = 1;
+ else if ((mateid->field_valid & 2) &&
+ (mateid->dma_mword & 7))
+ udma_ok = 0;
+ else
+ udma_ok = 1;
+ }
+ }
+
+ /*
+ * Now see what the current drive is capable of,
+ * selecting UDMA only if the mate said it was ok.
+ */
+ if (id && (id->capability & 1) && drive->autodma &&
+ !__ide_dma_bad_drive(drive)) {
+ if (udma_ok && (id->field_valid & 4) && (id->dma_ultra & 7)) {
+ if (id->dma_ultra & 4)
+ mode = XFER_UDMA_2;
+ else if (id->dma_ultra & 2)
+ mode = XFER_UDMA_1;
+ else if (id->dma_ultra & 1)
+ mode = XFER_UDMA_0;
+ }
+ if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) {
+ if (id->dma_mword & 4)
+ mode = XFER_MW_DMA_2;
+ else if (id->dma_mword & 2)
+ mode = XFER_MW_DMA_1;
+ else if (id->dma_mword & 1)
+ mode = XFER_MW_DMA_0;
+ }
+ }
+
+ /*
+ * Tell the drive to switch to the new mode; abort on failure.
+ */
+ if (!mode || cs5530_set_xfer_mode(drive, mode))
+ return 1; /* failure */
+
+ /*
+ * Now tune the chipset to match the drive:
+ */
+ switch (mode) {
+ case XFER_UDMA_0: timings = 0x00921250; break;
+ case XFER_UDMA_1: timings = 0x00911140; break;
+ case XFER_UDMA_2: timings = 0x00911030; break;
+ case XFER_MW_DMA_0: timings = 0x00077771; break;
+ case XFER_MW_DMA_1: timings = 0x00012121; break;
+ case XFER_MW_DMA_2: timings = 0x00002020; break;
+ default:
+ printk(KERN_ERR "%s: cs5530_config_dma: huh? mode=%02x\n",
+ drive->name, mode);
+ return 1; /* failure */
+ }
+ basereg = CS5530_BASEREG(hwif);
+ reg = hwif->INL(basereg+4); /* get drive0 config register */
+ timings |= reg & 0x80000000; /* preserve PIO format bit */
+ if (unit == 0) { /* are we configuring drive0? */
+ hwif->OUTL(timings, basereg+4); /* write drive0 config register */
+ } else {
+ if (timings & 0x00100000)
+ reg |= 0x00100000; /* enable UDMA timings for both drives */
+ else
+ reg &= ~0x00100000; /* disable UDMA timings for both drives */
+ hwif->OUTL(reg, basereg+4); /* write drive0 config register */
+ hwif->OUTL(timings, basereg+12); /* write drive1 config register */
+ }
+ (void) hwif->ide_dma_host_on(drive);
+ /* set DMA_capable bit */
+
+ /*
+ * Finally, turn DMA on in software, and exit.
+ */
+ return hwif->ide_dma_on(drive); /* success */
+}
+
+/**
+ * init_chipset_5530 - set up 5530 bridge
+ * @dev: PCI device
+ * @name: device name
+ *
+ * Initialize the cs5530 bridge for reliable IDE DMA operation.
+ */
+
+static unsigned int __init init_chipset_cs5530 (struct pci_dev *dev, const char *name)
+{
+ struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
+ unsigned long flags;
+
+ dev = NULL;
+ while ((dev = pci_find_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) {
+ switch (dev->device) {
+ case PCI_DEVICE_ID_CYRIX_PCI_MASTER:
+ master_0 = dev;
+ break;
+ case PCI_DEVICE_ID_CYRIX_5530_LEGACY:
+ cs5530_0 = dev;
+ break;
+ }
+ }
+ if (!master_0) {
+ printk(KERN_ERR "%s: unable to locate PCI MASTER function\n", name);
+ return 0;
+ }
+ if (!cs5530_0) {
+ printk(KERN_ERR "%s: unable to locate CS5530 LEGACY function\n", name);
+ return 0;
+ }
+
+ spin_lock_irqsave(&ide_lock, flags);
+ /* all CPUs (there should only be one CPU with this chipset) */
+
+ /*
+ * Enable BusMaster and MemoryWriteAndInvalidate for the cs5530:
+ * --> OR 0x14 into 16-bit PCI COMMAND reg of function 0 of the cs5530
+ */
+
+ pci_set_master(cs5530_0);
+ 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
+ */
+
+ 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);
+
+ spin_unlock_irqrestore(&ide_lock, flags);
+
+ return 0;
+}
+
+/**
+ * init_hwif_cs5530 - initialise an IDE channel
+ * @hwif: IDE to initialize
+ *
+ * This gets invoked by the IDE driver once for each channel. It
+ * performs channel-specific pre-initialization before drive probing.
+ */
+
+static void __init init_hwif_cs5530 (ide_hwif_t *hwif)
+{
+ unsigned long basereg;
+ u32 d0_timings;
+ hwif->autodma = 0;
+
+ if (hwif->mate)
+ hwif->serialized = hwif->mate->serialized = 1;
+
+ hwif->tuneproc = &cs5530_tuneproc;
+ basereg = CS5530_BASEREG(hwif);
+ d0_timings = hwif->INL(basereg+0);
+ if (CS5530_BAD_PIO(d0_timings)) {
+ /* PIO timings not initialized? */
+ hwif->OUTL(cs5530_pio_timings[(d0_timings>>31)&1][0], basereg+0);
+ if (!hwif->drives[0].autotune)
+ hwif->drives[0].autotune = 1;
+ /* needs autotuning later */
+ }
+ if (CS5530_BAD_PIO(hwif->INL(basereg+8))) {
+ /* PIO timings not initialized? */
+ hwif->OUTL(cs5530_pio_timings[(d0_timings>>31)&1][0], basereg+8);
+ if (!hwif->drives[1].autotune)
+ hwif->drives[1].autotune = 1;
+ /* needs autotuning later */
+ }
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x07;
+ hwif->mwdma_mask = 0x07;
+
+ hwif->ide_dma_check = &cs5530_config_dma;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t cs5530_chipset __devinitdata = {
+ .name = "CS5530",
+ .init_chipset = init_chipset_cs5530,
+ .init_hwif = init_hwif_cs5530,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+};
+
+static int __devinit cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &cs5530_chipset);
+}
+
+static struct pci_device_id cs5530_pci_tbl[] = {
+ { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, cs5530_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "CS5530 IDE",
+ .id_table = cs5530_pci_tbl,
+ .probe = cs5530_init_one,
+};
+
+static int cs5530_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(cs5530_ide_init);
+
+MODULE_AUTHOR("Mark Lord");
+MODULE_DESCRIPTION("PCI driver module for Cyrix/NS 5530 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c
new file mode 100644
index 0000000..80d67e9
--- /dev/null
+++ b/drivers/ide/pci/cy82c693.c
@@ -0,0 +1,531 @@
+/*
+ * linux/drivers/ide/pci/cy82c693.c Version 0.40 Sep. 10, 2002
+ *
+ * Copyright (C) 1998-2000 Andreas S. Krebs (akrebs@altavista.net), Maintainer
+ * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>, Integrator
+ *
+ * CYPRESS CY82C693 chipset IDE controller
+ *
+ * The CY82C693 chipset is used on Digital's PC-Alpha 164SX boards.
+ * Writing the driver was quite simple, since most of the job is
+ * done by the generic pci-ide support.
+ * The hard part was finding the CY82C693's datasheet on Cypress's
+ * web page :-(. But Altavista solved this problem :-).
+ *
+ *
+ * Notes:
+ * - I recently got a 16.8G IBM DTTA, so I was able to test it with
+ * a large and fast disk - the results look great, so I'd say the
+ * driver is working fine :-)
+ * hdparm -t reports 8.17 MB/sec at about 6% CPU usage for the DTTA
+ * - this is my first linux driver, so there's probably a lot of room
+ * for optimizations and bug fixing, so feel free to do it.
+ * - use idebus=xx parameter to set PCI bus speed - needed to calc
+ * timings for PIO modes (default will be 40)
+ * - if using PIO mode it's a good idea to set the PIO mode and
+ * 32-bit I/O support (if possible), e.g. hdparm -p2 -c1 /dev/hda
+ * - I had some problems with my IBM DHEA with PIO modes < 2
+ * (lost interrupts) ?????
+ * - first tests with DMA look okay, they seem to work, but there is a
+ * problem with sound - the BusMaster IDE TimeOut should fixed this
+ *
+ * Ancient History:
+ * AMH@1999-08-24: v0.34 init_cy82c693_chip moved to pci_init_cy82c693
+ * ASK@1999-01-23: v0.33 made a few minor code clean ups
+ * removed DMA clock speed setting by default
+ * added boot message
+ * ASK@1998-11-01: v0.32 added support to set BusMaster IDE TimeOut
+ * added support to set DMA Controller Clock Speed
+ * ASK@1998-10-31: v0.31 fixed problem with setting to high DMA modes
+ * on some drives.
+ * ASK@1998-10-29: v0.3 added support to set DMA modes
+ * ASK@1998-10-28: v0.2 added support to set PIO modes
+ * ASK@1998-10-27: v0.1 first version - chipset detection
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+/* the current version */
+#define CY82_VERSION "CY82C693U driver v0.34 99-13-12 Andreas S. Krebs (akrebs@altavista.net)"
+
+/*
+ * The following are used to debug the driver.
+ */
+#define CY82C693_DEBUG_LOGS 0
+#define CY82C693_DEBUG_INFO 0
+
+/* define CY82C693_SETDMA_CLOCK to set DMA Controller Clock Speed to ATCLK */
+#undef CY82C693_SETDMA_CLOCK
+
+/*
+ * NOTE: the value for busmaster timeout is tricky and I got it by
+ * trial and error! By using a to low value will cause DMA timeouts
+ * and drop IDE performance, and by using a to high value will cause
+ * audio playback to scatter.
+ * If you know a better value or how to calc it, please let me know.
+ */
+
+/* twice the value written in cy82c693ub datasheet */
+#define BUSMASTER_TIMEOUT 0x50
+/*
+ * the value above was tested on my machine and it seems to work okay
+ */
+
+/* here are the offset definitions for the registers */
+#define CY82_IDE_CMDREG 0x04
+#define CY82_IDE_ADDRSETUP 0x48
+#define CY82_IDE_MASTER_IOR 0x4C
+#define CY82_IDE_MASTER_IOW 0x4D
+#define CY82_IDE_SLAVE_IOR 0x4E
+#define CY82_IDE_SLAVE_IOW 0x4F
+#define CY82_IDE_MASTER_8BIT 0x50
+#define CY82_IDE_SLAVE_8BIT 0x51
+
+#define CY82_INDEX_PORT 0x22
+#define CY82_DATA_PORT 0x23
+
+#define CY82_INDEX_CTRLREG1 0x01
+#define CY82_INDEX_CHANNEL0 0x30
+#define CY82_INDEX_CHANNEL1 0x31
+#define CY82_INDEX_TIMEOUT 0x32
+
+/* the max PIO mode - from datasheet */
+#define CY82C693_MAX_PIO 4
+
+/* the min and max PCI bus speed in MHz - from datasheet */
+#define CY82C963_MIN_BUS_SPEED 25
+#define CY82C963_MAX_BUS_SPEED 33
+
+/* the struct for the PIO mode timings */
+typedef struct pio_clocks_s {
+ u8 address_time; /* Address setup (clocks) */
+ u8 time_16r; /* clocks for 16bit IOR (0xF0=Active/data, 0x0F=Recovery) */
+ u8 time_16w; /* clocks for 16bit IOW (0xF0=Active/data, 0x0F=Recovery) */
+ u8 time_8; /* clocks for 8bit (0xF0=Active/data, 0x0F=Recovery) */
+} pio_clocks_t;
+
+/*
+ * calc clocks using bus_speed
+ * returns (rounded up) time in bus clocks for time in ns
+ */
+static int calc_clk (int time, int bus_speed)
+{
+ int clocks;
+
+ clocks = (time*bus_speed+999)/1000 -1;
+
+ if (clocks < 0)
+ clocks = 0;
+
+ if (clocks > 0x0F)
+ clocks = 0x0F;
+
+ return clocks;
+}
+
+/*
+ * compute the values for the clock registers for PIO
+ * mode and pci_clk [MHz] speed
+ *
+ * NOTE: for mode 0,1 and 2 drives 8-bit IDE command control registers are used
+ * for mode 3 and 4 drives 8 and 16-bit timings are the same
+ *
+ */
+static void compute_clocks (u8 pio, pio_clocks_t *p_pclk)
+{
+ int clk1, clk2;
+ int bus_speed = system_bus_clock(); /* get speed of PCI bus */
+
+ /* we don't check against CY82C693's min and max speed,
+ * so you can play with the idebus=xx parameter
+ */
+
+ if (pio > CY82C693_MAX_PIO)
+ pio = CY82C693_MAX_PIO;
+
+ /* let's calc the address setup time clocks */
+ p_pclk->address_time = (u8)calc_clk(ide_pio_timings[pio].setup_time, bus_speed);
+
+ /* let's calc the active and recovery time clocks */
+ clk1 = calc_clk(ide_pio_timings[pio].active_time, bus_speed);
+
+ /* calc recovery timing */
+ clk2 = ide_pio_timings[pio].cycle_time -
+ ide_pio_timings[pio].active_time -
+ ide_pio_timings[pio].setup_time;
+
+ clk2 = calc_clk(clk2, bus_speed);
+
+ clk1 = (clk1<<4)|clk2; /* combine active and recovery clocks */
+
+ /* note: we use the same values for 16bit IOR and IOW
+ * those are all the same, since I don't have other
+ * timings than those from ide-lib.c
+ */
+
+ p_pclk->time_16r = (u8)clk1;
+ p_pclk->time_16w = (u8)clk1;
+
+ /* what are good values for 8bit ?? */
+ p_pclk->time_8 = (u8)clk1;
+}
+
+/*
+ * set DMA mode a specific channel for CY82C693
+ */
+
+static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single)
+{
+ u8 index = 0, data = 0;
+
+ if (mode>2) /* make sure we set a valid mode */
+ mode = 2;
+
+ if (mode > drive->id->tDMA) /* to be absolutly sure we have a valid mode */
+ mode = drive->id->tDMA;
+
+ index = (HWIF(drive)->channel==0) ? CY82_INDEX_CHANNEL0 : CY82_INDEX_CHANNEL1;
+
+#if CY82C693_DEBUG_LOGS
+ /* for debug let's show the previous values */
+
+ HWIF(drive)->OUTB(index, CY82_INDEX_PORT);
+ data = HWIF(drive)->INB(CY82_DATA_PORT);
+
+ printk (KERN_INFO "%s (ch=%d, dev=%d): DMA mode is %d (single=%d)\n",
+ drive->name, HWIF(drive)->channel, drive->select.b.unit,
+ (data&0x3), ((data>>2)&1));
+#endif /* CY82C693_DEBUG_LOGS */
+
+ data = (u8)mode|(u8)(single<<2);
+
+ HWIF(drive)->OUTB(index, CY82_INDEX_PORT);
+ HWIF(drive)->OUTB(data, CY82_DATA_PORT);
+
+#if CY82C693_DEBUG_INFO
+ printk(KERN_INFO "%s (ch=%d, dev=%d): set DMA mode to %d (single=%d)\n",
+ drive->name, HWIF(drive)->channel, drive->select.b.unit,
+ mode, single);
+#endif /* CY82C693_DEBUG_INFO */
+
+ /*
+ * note: below we set the value for Bus Master IDE TimeOut Register
+ * I'm not absolutly sure what this does, but it solved my problem
+ * with IDE DMA and sound, so I now can play sound and work with
+ * my IDE driver at the same time :-)
+ *
+ * If you know the correct (best) value for this register please
+ * let me know - ASK
+ */
+
+ data = BUSMASTER_TIMEOUT;
+ HWIF(drive)->OUTB(CY82_INDEX_TIMEOUT, CY82_INDEX_PORT);
+ HWIF(drive)->OUTB(data, CY82_DATA_PORT);
+
+#if CY82C693_DEBUG_INFO
+ printk (KERN_INFO "%s: Set IDE Bus Master TimeOut Register to 0x%X\n",
+ drive->name, data);
+#endif /* CY82C693_DEBUG_INFO */
+}
+
+/*
+ * used to set DMA mode for CY82C693 (single and multi modes)
+ */
+static int cy82c693_ide_dma_on (ide_drive_t *drive)
+{
+ struct hd_driveid *id = drive->id;
+
+#if CY82C693_DEBUG_INFO
+ printk (KERN_INFO "dma_on: %s\n", drive->name);
+#endif /* CY82C693_DEBUG_INFO */
+
+ if (id != NULL) {
+ /* Enable DMA on any drive that has DMA
+ * (multi or single) enabled
+ */
+ if (id->field_valid & 2) { /* regular DMA */
+ int mmode, smode;
+
+ mmode = id->dma_mword & (id->dma_mword >> 8);
+ smode = id->dma_1word & (id->dma_1word >> 8);
+
+ if (mmode != 0) {
+ /* enable multi */
+ cy82c693_dma_enable(drive, (mmode >> 1), 0);
+ } else if (smode != 0) {
+ /* enable single */
+ cy82c693_dma_enable(drive, (smode >> 1), 1);
+ }
+ }
+ }
+ return __ide_dma_on(drive);
+}
+
+/*
+ * tune ide drive - set PIO mode
+ */
+static void cy82c693_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ pio_clocks_t pclk;
+ unsigned int addrCtrl;
+
+ /* select primary or secondary channel */
+ if (hwif->index > 0) { /* drive is on the secondary channel */
+ dev = pci_find_slot(dev->bus->number, dev->devfn+1);
+ if (!dev) {
+ printk(KERN_ERR "%s: tune_drive: "
+ "Cannot find secondary interface!\n",
+ drive->name);
+ return;
+ }
+ }
+
+#if CY82C693_DEBUG_LOGS
+ /* for debug let's show the register values */
+
+ if (drive->select.b.unit == 0) {
+ /*
+ * get master drive registers
+ * address setup control register
+ * is 32 bit !!!
+ */
+ pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
+ addrCtrl &= 0x0F;
+
+ /* now let's get the remaining registers */
+ pci_read_config_byte(dev, CY82_IDE_MASTER_IOR, &pclk.time_16r);
+ pci_read_config_byte(dev, CY82_IDE_MASTER_IOW, &pclk.time_16w);
+ pci_read_config_byte(dev, CY82_IDE_MASTER_8BIT, &pclk.time_8);
+ } else {
+ /*
+ * set slave drive registers
+ * address setup control register
+ * is 32 bit !!!
+ */
+ pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
+
+ addrCtrl &= 0xF0;
+ addrCtrl >>= 4;
+
+ /* now let's get the remaining registers */
+ pci_read_config_byte(dev, CY82_IDE_SLAVE_IOR, &pclk.time_16r);
+ pci_read_config_byte(dev, CY82_IDE_SLAVE_IOW, &pclk.time_16w);
+ pci_read_config_byte(dev, CY82_IDE_SLAVE_8BIT, &pclk.time_8);
+ }
+
+ printk(KERN_INFO "%s (ch=%d, dev=%d): PIO timing is "
+ "(addr=0x%X, ior=0x%X, iow=0x%X, 8bit=0x%X)\n",
+ drive->name, hwif->channel, drive->select.b.unit,
+ addrCtrl, pclk.time_16r, pclk.time_16w, pclk.time_8);
+#endif /* CY82C693_DEBUG_LOGS */
+
+ /* first let's calc the pio modes */
+ pio = ide_get_best_pio_mode(drive, pio, CY82C693_MAX_PIO, NULL);
+
+#if CY82C693_DEBUG_INFO
+ printk (KERN_INFO "%s: Selected PIO mode %d\n", drive->name, pio);
+#endif /* CY82C693_DEBUG_INFO */
+
+ /* let's calc the values for this PIO mode */
+ compute_clocks(pio, &pclk);
+
+ /* now let's write the clocks registers */
+ if (drive->select.b.unit == 0) {
+ /*
+ * set master drive
+ * address setup control register
+ * is 32 bit !!!
+ */
+ pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
+
+ addrCtrl &= (~0xF);
+ addrCtrl |= (unsigned int)pclk.address_time;
+ pci_write_config_dword(dev, CY82_IDE_ADDRSETUP, addrCtrl);
+
+ /* now let's set the remaining registers */
+ pci_write_config_byte(dev, CY82_IDE_MASTER_IOR, pclk.time_16r);
+ pci_write_config_byte(dev, CY82_IDE_MASTER_IOW, pclk.time_16w);
+ pci_write_config_byte(dev, CY82_IDE_MASTER_8BIT, pclk.time_8);
+
+ addrCtrl &= 0xF;
+ } else {
+ /*
+ * set slave drive
+ * address setup control register
+ * is 32 bit !!!
+ */
+ pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
+
+ addrCtrl &= (~0xF0);
+ addrCtrl |= ((unsigned int)pclk.address_time<<4);
+ pci_write_config_dword(dev, CY82_IDE_ADDRSETUP, addrCtrl);
+
+ /* now let's set the remaining registers */
+ pci_write_config_byte(dev, CY82_IDE_SLAVE_IOR, pclk.time_16r);
+ pci_write_config_byte(dev, CY82_IDE_SLAVE_IOW, pclk.time_16w);
+ pci_write_config_byte(dev, CY82_IDE_SLAVE_8BIT, pclk.time_8);
+
+ addrCtrl >>= 4;
+ addrCtrl &= 0xF;
+ }
+
+#if CY82C693_DEBUG_INFO
+ printk(KERN_INFO "%s (ch=%d, dev=%d): set PIO timing to "
+ "(addr=0x%X, ior=0x%X, iow=0x%X, 8bit=0x%X)\n",
+ drive->name, hwif->channel, drive->select.b.unit,
+ addrCtrl, pclk.time_16r, pclk.time_16w, pclk.time_8);
+#endif /* CY82C693_DEBUG_INFO */
+}
+
+/*
+ * this function is called during init and is used to setup the cy82c693 chip
+ */
+static unsigned int __init init_chipset_cy82c693(struct pci_dev *dev, const char *name)
+{
+ if (PCI_FUNC(dev->devfn) != 1)
+ return 0;
+
+#ifdef CY82C693_SETDMA_CLOCK
+ u8 data = 0;
+#endif /* CY82C693_SETDMA_CLOCK */
+
+ /* write info about this verion of the driver */
+ printk(KERN_INFO CY82_VERSION "\n");
+
+#ifdef CY82C693_SETDMA_CLOCK
+ /* okay let's set the DMA clock speed */
+
+ outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
+ data = inb(CY82_DATA_PORT);
+
+#if CY82C693_DEBUG_INFO
+ printk(KERN_INFO "%s: Peripheral Configuration Register: 0x%X\n",
+ name, data);
+#endif /* CY82C693_DEBUG_INFO */
+
+ /*
+ * for some reason sometimes the DMA controller
+ * speed is set to ATCLK/2 ???? - we fix this here
+ *
+ * note: i don't know what causes this strange behaviour,
+ * but even changing the dma speed doesn't solve it :-(
+ * the ide performance is still only half the normal speed
+ *
+ * if anybody knows what goes wrong with my machine, please
+ * let me know - ASK
+ */
+
+ data |= 0x03;
+
+ outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
+ outb(data, CY82_DATA_PORT);
+
+#if CY82C693_DEBUG_INFO
+ printk (KERN_INFO "%s: New Peripheral Configuration Register: 0x%X\n",
+ name, data);
+#endif /* CY82C693_DEBUG_INFO */
+
+#endif /* CY82C693_SETDMA_CLOCK */
+ return 0;
+}
+
+/*
+ * the init function - called for each ide channel once
+ */
+static void __init init_hwif_cy82c693(ide_hwif_t *hwif)
+{
+ hwif->autodma = 0;
+
+ hwif->chipset = ide_cy82c693;
+ hwif->tuneproc = &cy82c693_tune_drive;
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->atapi_dma = 1;
+ hwif->mwdma_mask = 0x04;
+ hwif->swdma_mask = 0x04;
+
+ hwif->ide_dma_on = &cy82c693_ide_dma_on;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static __initdata ide_hwif_t *primary;
+
+void __init init_iops_cy82c693(ide_hwif_t *hwif)
+{
+ if (PCI_FUNC(hwif->pci_dev->devfn) == 1)
+ primary = hwif;
+ else {
+ hwif->mate = primary;
+ hwif->channel = 1;
+ }
+}
+
+static ide_pci_device_t cy82c693_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "CY82C693",
+ .init_chipset = init_chipset_cy82c693,
+ .init_iops = init_iops_cy82c693,
+ .init_hwif = init_hwif_cy82c693,
+ .channels = 1,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ }
+};
+
+static int __devinit cy82c693_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &cy82c693_chipsets[id->driver_data];
+ struct pci_dev *dev2;
+ int ret = -ENODEV;
+
+ /* CY82C693 is more than only a IDE controller.
+ Function 1 is primary IDE channel, function 2 - secondary. */
+ if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE &&
+ PCI_FUNC(dev->devfn) == 1) {
+ dev2 = pci_find_slot(dev->bus->number, dev->devfn + 1);
+ ret = ide_setup_pci_devices(dev, dev2, d);
+ }
+ return ret;
+}
+
+static struct pci_device_id cy82c693_pci_tbl[] = {
+ { PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, cy82c693_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "Cypress_IDE",
+ .id_table = cy82c693_pci_tbl,
+ .probe = cy82c693_init_one,
+};
+
+static int cy82c693_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(cy82c693_ide_init);
+
+MODULE_AUTHOR("Andreas Krebs, Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for the Cypress CY82C693 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c
new file mode 100644
index 0000000..4565cc3
--- /dev/null
+++ b/drivers/ide/pci/generic.c
@@ -0,0 +1,232 @@
+/*
+ * linux/drivers/ide/pci/generic.c Version 0.11 December 30, 2002
+ *
+ * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
+ * Portions (C) Copyright 2002 Red Hat Inc <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.
+ *
+ * For the avoidance of doubt the "preferred form" of this code is one which
+ * is in an open non patent encumbered format. Where cryptographic key signing
+ * forms part of the process of creating an executable the information
+ * including keys needed to generate an equivalently functional executable
+ * are deemed to be part of the source code.
+ */
+
+#undef REALLY_SLOW_IO /* most systems can safely undef this */
+
+#include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+static void __devinit init_hwif_generic (ide_hwif_t *hwif)
+{
+ switch(hwif->pci_dev->device) {
+ case PCI_DEVICE_ID_UMC_UM8673F:
+ case PCI_DEVICE_ID_UMC_UM8886A:
+ case PCI_DEVICE_ID_UMC_UM8886BF:
+ hwif->irq = hwif->channel ? 15 : 14;
+ break;
+ default:
+ break;
+ }
+
+ if (!(hwif->dma_base))
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+#if 0
+ /* Logic to add back later on */
+
+ if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
+ ide_pci_device_t *unknown = unknown_chipset;
+ init_setup_unknown(dev, unknown);
+ return 1;
+ }
+ return 0;
+#endif
+
+static ide_pci_device_t generic_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "NS87410",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
+ .bootable = ON_BOARD,
+ },{ /* 1 */
+ .name = "SAMURAI",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 2 */
+ .name = "HT6565",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 3 */
+ .name = "UM8673F",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NODMA,
+ .bootable = ON_BOARD,
+ },{ /* 4 */
+ .name = "UM8886A",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NODMA,
+ .bootable = ON_BOARD,
+ },{ /* 5 */
+ .name = "UM8886BF",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NODMA,
+ .bootable = ON_BOARD,
+ },{ /* 6 */
+ .name = "HINT_IDE",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 7 */
+ .name = "VIA_IDE",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 8 */
+ .name = "OPTI621V",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 9 */
+ .name = "VIA8237SATA",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 10 */
+ .name = "Piccolo0102",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 11 */
+ .name = "Piccolo0103",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 12 */
+ .name = "Piccolo0105",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = ON_BOARD,
+ }
+};
+
+/**
+ * generic_init_one - called when a PIIX is found
+ * @dev: the generic device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &generic_chipsets[id->driver_data];
+ u16 command;
+ int ret = -ENODEV;
+
+ if (dev->vendor == PCI_VENDOR_ID_UMC &&
+ dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
+ (!(PCI_FUNC(dev->devfn) & 1)))
+ goto out; /* UM8886A/BF pair */
+
+ if (dev->vendor == PCI_VENDOR_ID_OPTI &&
+ dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
+ (!(PCI_FUNC(dev->devfn) & 1)))
+ goto out;
+
+ pci_read_config_word(dev, PCI_COMMAND, &command);
+ if (!(command & PCI_COMMAND_IO)) {
+ printk(KERN_INFO "Skipping disabled %s IDE controller.\n", d->name);
+ goto out;
+ }
+ ret = ide_setup_pci_device(dev, d);
+out:
+ return ret;
+}
+
+static struct pci_device_id generic_pci_tbl[] = {
+ { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+ { PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
+ { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
+ { PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
+#ifdef CONFIG_BLK_DEV_IDE_SATA
+ { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
+#endif
+ { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
+ { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
+ { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "PCI_IDE",
+ .id_table = generic_pci_tbl,
+ .probe = generic_init_one,
+};
+
+static int generic_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(generic_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c
new file mode 100644
index 0000000..bbde462
--- /dev/null
+++ b/drivers/ide/pci/hpt34x.c
@@ -0,0 +1,278 @@
+/*
+ * 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
+ *
+ *
+ * 00:12.0 Unknown mass storage controller:
+ * Triones Technologies, Inc.
+ * Unknown device 0003 (rev 01)
+ *
+ * hde: UDMA 2 (0x0000 0x0002) (0x0000 0x0010)
+ * hdf: UDMA 2 (0x0002 0x0012) (0x0010 0x0030)
+ * hde: DMA 2 (0x0000 0x0002) (0x0000 0x0010)
+ * hdf: DMA 2 (0x0002 0x0012) (0x0010 0x0030)
+ * hdg: DMA 1 (0x0012 0x0052) (0x0030 0x0070)
+ * hdh: DMA 1 (0x0052 0x0252) (0x0070 0x00f0)
+ *
+ * ide-pci.c reference
+ *
+ * Since there are two cards that report almost identically,
+ * the only discernable difference is the values reported in pcicmd.
+ * Booting-BIOS card or HPT363 :: pcicmd == 0x07
+ * Non-bootable card or HPT343 :: pcicmd == 0x05
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#define HPT343_DEBUG_DRIVE_INFO 0
+
+static u8 hpt34x_ratemask (ide_drive_t *drive)
+{
+ return 1;
+}
+
+static void hpt34x_clear_chipset (ide_drive_t *drive)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u32 reg1 = 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
+
+ pci_read_config_dword(dev, 0x44, ®1);
+ pci_read_config_dword(dev, 0x48, ®2);
+ tmp1 = ((0x00 << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
+ tmp2 = (reg2 & ~(0x11 << drive->dn));
+ pci_write_config_dword(dev, 0x44, tmp1);
+ pci_write_config_dword(dev, 0x48, tmp2);
+}
+
+static int hpt34x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 speed = ide_rate_filter(hpt34x_ratemask(drive), xferspeed);
+ u32 reg1= 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
+ u8 hi_speed, lo_speed;
+
+ hi_speed = speed >> 4;
+ lo_speed = speed & 0x0f;
+
+ if (hi_speed & 7) {
+ hi_speed = (hi_speed & 4) ? 0x01 : 0x10;
+ } else {
+ lo_speed <<= 5;
+ lo_speed >>= 5;
+ }
+
+ pci_read_config_dword(dev, 0x44, ®1);
+ pci_read_config_dword(dev, 0x48, ®2);
+ tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
+ tmp2 = ((hi_speed << drive->dn) | reg2);
+ pci_write_config_dword(dev, 0x44, tmp1);
+ pci_write_config_dword(dev, 0x48, tmp2);
+
+#if HPT343_DEBUG_DRIVE_INFO
+ printk("%s: %s drive%d (0x%04x 0x%04x) (0x%04x 0x%04x)" \
+ " (0x%02x 0x%02x)\n",
+ drive->name, ide_xfer_verbose(speed),
+ drive->dn, reg1, tmp1, reg2, tmp2,
+ hi_speed, lo_speed);
+#endif /* HPT343_DEBUG_DRIVE_INFO */
+
+ return(ide_config_drive_speed(drive, speed));
+}
+
+static void hpt34x_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
+ hpt34x_clear_chipset(drive);
+ (void) hpt34x_tune_chipset(drive, (XFER_PIO_0 + pio));
+}
+
+/*
+ * This allows the configuration of ide_pci chipset registers
+ * for cards that learn about the drive's UDMA, DMA, PIO capabilities
+ * after the drive is reported by the OS. Initially for designed for
+ * HPT343 UDMA chipset by HighPoint|Triones Technologies, Inc.
+ */
+
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, hpt34x_ratemask(drive));
+
+ if (!(speed))
+ return 0;
+
+ hpt34x_clear_chipset(drive);
+ (void) hpt34x_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if (id && (id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+#ifndef CONFIG_HPT34X_AUTODMA
+ return hwif->ide_dma_off_quietly(drive);
+#else
+ return hwif->ide_dma_on(drive);
+#endif
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ hpt34x_tune_drive(drive, 255);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+/*
+ * If the BIOS does not set the IO base addaress to XX00, 343 will fail.
+ */
+#define HPT34X_PCI_INIT_REG 0x80
+
+static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev, const char *name)
+{
+ int i = 0;
+ unsigned long hpt34xIoBase = pci_resource_start(dev, 4);
+ unsigned long hpt_addr[4] = { 0x20, 0x34, 0x28, 0x3c };
+ unsigned long hpt_addr_len[4] = { 7, 3, 7, 3 };
+ u16 cmd;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ pci_write_config_byte(dev, HPT34X_PCI_INIT_REG, 0x00);
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+
+ if (cmd & PCI_COMMAND_MEMORY) {
+ if (pci_resource_start(dev, PCI_ROM_RESOURCE)) {
+ pci_write_config_byte(dev, PCI_ROM_ADDRESS,
+ dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+ printk(KERN_INFO "HPT345: ROM enabled at 0x%08lx\n",
+ dev->resource[PCI_ROM_RESOURCE].start);
+ }
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
+ } else {
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
+ }
+
+ /*
+ * Since 20-23 can be assigned and are R/W, we correct them.
+ */
+ pci_write_config_word(dev, PCI_COMMAND, cmd & ~PCI_COMMAND_IO);
+ for(i=0; i<4; i++) {
+ dev->resource[i].start = (hpt34xIoBase + hpt_addr[i]);
+ dev->resource[i].end = dev->resource[i].start + hpt_addr_len[i];
+ dev->resource[i].flags = IORESOURCE_IO;
+ pci_write_config_dword(dev,
+ (PCI_BASE_ADDRESS_0 + (i * 4)),
+ dev->resource[i].start);
+ }
+ pci_write_config_word(dev, PCI_COMMAND, cmd);
+
+ local_irq_restore(flags);
+
+ return dev->irq;
+}
+
+static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
+{
+ u16 pcicmd = 0;
+
+ hwif->autodma = 0;
+
+ hwif->tuneproc = &hpt34x_tune_drive;
+ hwif->speedproc = &hpt34x_tune_chipset;
+ hwif->no_dsc = 1;
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+
+ pci_read_config_word(hwif->pci_dev, PCI_COMMAND, &pcicmd);
+
+ if (!hwif->dma_base)
+ return;
+
+ hwif->ultra_mask = 0x07;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ hwif->ide_dma_check = &hpt34x_config_drive_xfer_rate;
+ if (!noautodma)
+ hwif->autodma = (pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t hpt34x_chipset __devinitdata = {
+ .name = "HPT34X",
+ .init_chipset = init_chipset_hpt34x,
+ .init_hwif = init_hwif_hpt34x,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = NEVER_BOARD,
+ .extra = 16
+};
+
+static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &hpt34x_chipset;
+ static char *chipset_names[] = {"HPT343", "HPT345"};
+ u16 pcicmd = 0;
+
+ pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
+
+ d->name = chipset_names[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0];
+ d->bootable = (pcicmd & PCI_COMMAND_MEMORY) ? OFF_BOARD : NEVER_BOARD;
+
+ return ide_setup_pci_device(dev, d);
+}
+
+static struct pci_device_id hpt34x_pci_tbl[] = {
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, hpt34x_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "HPT34x_IDE",
+ .id_table = hpt34x_pci_tbl,
+ .probe = hpt34x_init_one,
+};
+
+static int hpt34x_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(hpt34x_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
new file mode 100644
index 0000000..c8ee0b8
--- /dev/null
+++ b/drivers/ide/pci/hpt366.c
@@ -0,0 +1,1745 @@
+/*
+ * 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
+ *
+ * Thanks to HighPoint Technologies for their assistance, and hardware.
+ * Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
+ * donation of an ABit BP6 mainboard, processor, and memory acellerated
+ * development and support.
+ *
+ * Note that final HPT370 support was done by force extraction of GPL.
+ *
+ * - add function for getting/setting power status of drive
+ * - the HPT370's state machine can get confused. reset it before each dma
+ * xfer to prevent that from happening.
+ * - reset state engine whenever we get an error.
+ * - check for busmaster state at end of dma.
+ * - use new highpoint timings.
+ * - detect bus speed using highpoint register.
+ * - use pll if we don't have a clock table. added a 66MHz table that's
+ * just 2x the 33MHz table.
+ * - removed turnaround. NOTE: we never want to switch between pll and
+ * pci clocks as the chip can glitch in those cases. the highpoint
+ * approved workaround slows everything down too much to be useful. in
+ * addition, we would have to serialize access to each chip.
+ * Adrian Sun <a.sun@sun.com>
+ *
+ * add drive timings for 66MHz PCI bus,
+ * fix ATA Cable signal detection, fix incorrect /proc info
+ * add /proc display for per-drive PIO/DMA/UDMA mode and
+ * per-channel ATA-33/66 Cable detect.
+ * Duncan Laurie <void@sun.com>
+ *
+ * fixup /proc output for multiple controllers
+ * Tim Hockin <thockin@sun.com>
+ *
+ * On hpt366:
+ * Reset the hpt366 on error, reset on dma
+ * Fix disabling Fast Interrupt hpt366.
+ * Mike Waychison <crlf@sun.com>
+ *
+ * Added support for 372N clocking and clock switching. The 372N needs
+ * different clocks on read/write. This requires overloading rw_disk and
+ * other deeply crazy things. Thanks to <http://www.hoerstreich.de> for
+ * keeping me sane.
+ * Alan Cox <alan@redhat.com>
+ *
+ */
+
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+/* various tuning parameters */
+#define HPT_RESET_STATE_ENGINE
+#undef HPT_DELAY_INTERRUPT
+#undef HPT_SERIALIZE_IO
+
+static const char *quirk_drives[] = {
+ "QUANTUM FIREBALLlct08 08",
+ "QUANTUM FIREBALLP KA6.4",
+ "QUANTUM FIREBALLP LM20.4",
+ "QUANTUM FIREBALLP LM20.5",
+ 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
+};
+
+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 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
+};
+
+struct chipset_bus_clock_list_entry {
+ u8 xfer_speed;
+ unsigned int chipset_settings;
+};
+
+/* 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 struct chipset_bus_clock_list_entry forty_base_hpt366[] = {
+ { 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 struct chipset_bus_clock_list_entry thirty_three_base_hpt366[] = {
+ { 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 struct chipset_bus_clock_list_entry twenty_five_base_hpt366[] = {
+ { 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 }
+};
+
+/* from highpoint documentation. these are old values */
+static struct chipset_bus_clock_list_entry thirty_three_base_hpt370[] = {
+/* { 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 struct chipset_bus_clock_list_entry sixty_six_base_hpt370[] = {
+ { 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 struct chipset_bus_clock_list_entry thirty_three_base_hpt370a[] = {
+ { 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 struct chipset_bus_clock_list_entry sixty_six_base_hpt370a[] = {
+ { 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 struct chipset_bus_clock_list_entry fifty_base_hpt370a[] = {
+ { 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 struct chipset_bus_clock_list_entry thirty_three_base_hpt372[] = {
+ { 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 struct chipset_bus_clock_list_entry fifty_base_hpt372[] = {
+ { 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 struct chipset_bus_clock_list_entry sixty_six_base_hpt372[] = {
+ { 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 struct chipset_bus_clock_list_entry thirty_three_base_hpt374[] = {
+ { 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 }
+};
+
+/* FIXME: 50MHz timings for HPT374 */
+
+#if 0
+static struct chipset_bus_clock_list_entry sixty_six_base_hpt374[] = {
+ { XFER_UDMA_6, 0x12406231 }, /* checkme */
+ { XFER_UDMA_5, 0x12446231 }, /* 0x14846231 */
+ { XFER_UDMA_4, 0x16814ea7 }, /* 0x14886231 */
+ { XFER_UDMA_3, 0x16814ea7 }, /* 0x148c6231 */
+ { XFER_UDMA_2, 0x16814ea7 }, /* 0x148c6231 */
+ { XFER_UDMA_1, 0x16814ea7 }, /* 0x14906231 */
+ { XFER_UDMA_0, 0x16814ea7 }, /* 0x14986231 */
+ { XFER_MW_DMA_2, 0x16814ea7 }, /* 0x26514e21 */
+ { XFER_MW_DMA_1, 0x16814ea7 }, /* 0x26514e97 */
+ { XFER_MW_DMA_0, 0x16814ea7 }, /* 0x26514e97 */
+ { XFER_PIO_4, 0x06814ea7 }, /* 0x06514e21 */
+ { XFER_PIO_3, 0x06814ea7 }, /* 0x06514e22 */
+ { XFER_PIO_2, 0x06814ea7 }, /* 0x06514e33 */
+ { XFER_PIO_1, 0x06814ea7 }, /* 0x06914e43 */
+ { XFER_PIO_0, 0x06814ea7 }, /* 0x06914e57 */
+ { 0, 0x06814ea7 }
+};
+#endif
+
+#define HPT366_DEBUG_DRIVE_INFO 0
+#define HPT374_ALLOW_ATA133_6 0
+#define HPT371_ALLOW_ATA133_6 0
+#define HPT302_ALLOW_ATA133_6 0
+#define HPT372_ALLOW_ATA133_6 1
+#define HPT370_ALLOW_ATA100_5 1
+#define HPT366_ALLOW_ATA66_4 1
+#define HPT366_ALLOW_ATA66_3 1
+#define HPT366_MAX_DEVS 8
+
+#define F_LOW_PCI_33 0x23
+#define F_LOW_PCI_40 0x29
+#define F_LOW_PCI_50 0x2d
+#define F_LOW_PCI_66 0x42
+
+/* FIXME: compare with driver's code before removing */
+#if 0
+ if (hpt_minimum_revision(dev, 3)) {
+ u8 cbl;
+ cbl = inb(iobase + 0x7b);
+ outb(cbl | 1, iobase + 0x7b);
+ outb(cbl & ~1, iobase + 0x7b);
+ cbl = inb(iobase + 0x7a);
+ p += sprintf(p, "Cable: ATA-%d"
+ " ATA-%d\n",
+ (cbl & 0x02) ? 33 : 66,
+ (cbl & 0x01) ? 33 : 66);
+ p += sprintf(p, "\n");
+ }
+ {
+ u8 c2, c3;
+ /* older revs don't have these registers mapped
+ * into io space */
+ pci_read_config_byte(dev, 0x43, &c0);
+ pci_read_config_byte(dev, 0x47, &c1);
+ pci_read_config_byte(dev, 0x4b, &c2);
+ pci_read_config_byte(dev, 0x4f, &c3);
+
+ p += sprintf(p, "Mode: %s %s"
+ " %s %s\n",
+ (c0 & 0x10) ? "UDMA" : (c0 & 0x20) ? "DMA " :
+ (c0 & 0x80) ? "PIO " : "off ",
+ (c1 & 0x10) ? "UDMA" : (c1 & 0x20) ? "DMA " :
+ (c1 & 0x80) ? "PIO " : "off ",
+ (c2 & 0x10) ? "UDMA" : (c2 & 0x20) ? "DMA " :
+ (c2 & 0x80) ? "PIO " : "off ",
+ (c3 & 0x10) ? "UDMA" : (c3 & 0x20) ? "DMA " :
+ (c3 & 0x80) ? "PIO " : "off ");
+ }
+ }
+#endif
+
+static u32 hpt_revision (struct pci_dev *dev)
+{
+ u32 class_rev;
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+
+ switch(dev->device) {
+ /* Remap new 372N onto 372 */
+ case PCI_DEVICE_ID_TTI_HPT372N:
+ class_rev = PCI_DEVICE_ID_TTI_HPT372; break;
+ case PCI_DEVICE_ID_TTI_HPT374:
+ class_rev = PCI_DEVICE_ID_TTI_HPT374; break;
+ case PCI_DEVICE_ID_TTI_HPT371:
+ class_rev = PCI_DEVICE_ID_TTI_HPT371; break;
+ case PCI_DEVICE_ID_TTI_HPT302:
+ class_rev = PCI_DEVICE_ID_TTI_HPT302; break;
+ case PCI_DEVICE_ID_TTI_HPT372:
+ class_rev = PCI_DEVICE_ID_TTI_HPT372; break;
+ default:
+ break;
+ }
+ return class_rev;
+}
+
+static u32 hpt_minimum_revision (struct pci_dev *dev, int revision)
+{
+ unsigned int class_rev = hpt_revision(dev);
+ revision--;
+ return ((int) (class_rev > revision) ? 1 : 0);
+}
+
+static int check_in_drive_lists(ide_drive_t *drive, const char **list);
+
+static u8 hpt3xx_ratemask (ide_drive_t *drive)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 mode = 0;
+
+ if (hpt_minimum_revision(dev, 8)) { /* HPT374 */
+ mode = (HPT374_ALLOW_ATA133_6) ? 4 : 3;
+ } else if (hpt_minimum_revision(dev, 7)) { /* HPT371 */
+ mode = (HPT371_ALLOW_ATA133_6) ? 4 : 3;
+ } else if (hpt_minimum_revision(dev, 6)) { /* HPT302 */
+ mode = (HPT302_ALLOW_ATA133_6) ? 4 : 3;
+ } else if (hpt_minimum_revision(dev, 5)) { /* HPT372 */
+ mode = (HPT372_ALLOW_ATA133_6) ? 4 : 3;
+ } else if (hpt_minimum_revision(dev, 4)) { /* HPT370A */
+ mode = (HPT370_ALLOW_ATA100_5) ? 3 : 2;
+ } else if (hpt_minimum_revision(dev, 3)) { /* HPT370 */
+ mode = (HPT370_ALLOW_ATA100_5) ? 3 : 2;
+ mode = (check_in_drive_lists(drive, bad_ata33)) ? 0 : mode;
+ } else { /* HPT366 and HPT368 */
+ mode = (check_in_drive_lists(drive, bad_ata33)) ? 0 : 2;
+ }
+ if (!eighty_ninty_three(drive) && (mode))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+/*
+ * Note for the future; the SATA hpt37x we must set
+ * either PIO or UDMA modes 0,4,5
+ */
+
+static u8 hpt3xx_ratefilter (ide_drive_t *drive, u8 speed)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 mode = hpt3xx_ratemask(drive);
+
+ if (drive->media != ide_disk)
+ return min(speed, (u8)XFER_PIO_4);
+
+ switch(mode) {
+ case 0x04:
+ speed = min(speed, (u8)XFER_UDMA_6);
+ break;
+ case 0x03:
+ speed = min(speed, (u8)XFER_UDMA_5);
+ if (hpt_minimum_revision(dev, 5))
+ break;
+ if (check_in_drive_lists(drive, bad_ata100_5))
+ speed = min(speed, (u8)XFER_UDMA_4);
+ break;
+ case 0x02:
+ speed = min(speed, (u8)XFER_UDMA_4);
+ /*
+ * CHECK ME, Does this need to be set to 5 ??
+ */
+ if (hpt_minimum_revision(dev, 3))
+ break;
+ if ((check_in_drive_lists(drive, bad_ata66_4)) ||
+ (!(HPT366_ALLOW_ATA66_4)))
+ speed = min(speed, (u8)XFER_UDMA_3);
+ if ((check_in_drive_lists(drive, bad_ata66_3)) ||
+ (!(HPT366_ALLOW_ATA66_3)))
+ speed = min(speed, (u8)XFER_UDMA_2);
+ break;
+ case 0x01:
+ speed = min(speed, (u8)XFER_UDMA_2);
+ /*
+ * CHECK ME, Does this need to be set to 5 ??
+ */
+ if (hpt_minimum_revision(dev, 3))
+ break;
+ if (check_in_drive_lists(drive, bad_ata33))
+ speed = min(speed, (u8)XFER_MW_DMA_2);
+ break;
+ case 0x00:
+ default:
+ speed = min(speed, (u8)XFER_MW_DMA_2);
+ break;
+ }
+ return speed;
+}
+
+static int check_in_drive_lists (ide_drive_t *drive, const char **list)
+{
+ struct hd_driveid *id = drive->id;
+
+ if (quirk_drives == list) {
+ while (*list)
+ if (strstr(id->model, *list++))
+ return 1;
+ } else {
+ while (*list)
+ if (!strcmp(*list++,id->model))
+ return 1;
+ }
+ return 0;
+}
+
+static unsigned int pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
+{
+ for ( ; chipset_table->xfer_speed ; chipset_table++)
+ if (chipset_table->xfer_speed == speed)
+ return chipset_table->chipset_settings;
+ return chipset_table->chipset_settings;
+}
+
+static int hpt36x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 speed = hpt3xx_ratefilter(drive, xferspeed);
+// u8 speed = ide_rate_filter(hpt3xx_ratemask(drive), xferspeed);
+ u8 regtime = (drive->select.b.unit & 0x01) ? 0x44 : 0x40;
+ u8 regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
+ u8 drive_fast = 0;
+ u32 reg1 = 0, reg2 = 0;
+
+ /*
+ * Disable the "fast interrupt" prediction.
+ */
+ pci_read_config_byte(dev, regfast, &drive_fast);
+#if 0
+ if (drive_fast & 0x02)
+ pci_write_config_byte(dev, regfast, drive_fast & ~0x20);
+#else
+ if (drive_fast & 0x80)
+ pci_write_config_byte(dev, regfast, drive_fast & ~0x80);
+#endif
+
+ reg2 = pci_bus_clock_list(speed,
+ (struct chipset_bus_clock_list_entry *) pci_get_drvdata(dev));
+ /*
+ * Disable on-chip PIO FIFO/buffer
+ * (to avoid problems handling I/O errors later)
+ */
+ pci_read_config_dword(dev, regtime, ®1);
+ if (speed >= XFER_MW_DMA_0) {
+ reg2 = (reg2 & ~0xc0000000) | (reg1 & 0xc0000000);
+ } else {
+ reg2 = (reg2 & ~0x30070000) | (reg1 & 0x30070000);
+ }
+ reg2 &= ~0x80000000;
+
+ pci_write_config_dword(dev, regtime, reg2);
+
+ return ide_config_drive_speed(drive, speed);
+}
+
+static int hpt370_tune_chipset(ide_drive_t *drive, u8 xferspeed)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 speed = hpt3xx_ratefilter(drive, xferspeed);
+// u8 speed = ide_rate_filter(hpt3xx_ratemask(drive), xferspeed);
+ u8 regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
+ u8 drive_pci = 0x40 + (drive->dn * 4);
+ u8 new_fast = 0, drive_fast = 0;
+ u32 list_conf = 0, drive_conf = 0;
+ u32 conf_mask = (speed >= XFER_MW_DMA_0) ? 0xc0000000 : 0x30070000;
+
+ /*
+ * Disable the "fast interrupt" prediction.
+ * don't holdoff on interrupts. (== 0x01 despite what the docs say)
+ */
+ pci_read_config_byte(dev, regfast, &drive_fast);
+ new_fast = drive_fast;
+ if (new_fast & 0x02)
+ new_fast &= ~0x02;
+
+#ifdef HPT_DELAY_INTERRUPT
+ if (new_fast & 0x01)
+ new_fast &= ~0x01;
+#else
+ if ((new_fast & 0x01) == 0)
+ new_fast |= 0x01;
+#endif
+ if (new_fast != drive_fast)
+ pci_write_config_byte(dev, regfast, new_fast);
+
+ list_conf = pci_bus_clock_list(speed,
+ (struct chipset_bus_clock_list_entry *)
+ pci_get_drvdata(dev));
+
+ pci_read_config_dword(dev, drive_pci, &drive_conf);
+ list_conf = (list_conf & ~conf_mask) | (drive_conf & conf_mask);
+
+ if (speed < XFER_MW_DMA_0) {
+ list_conf &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
+ }
+
+ pci_write_config_dword(dev, drive_pci, list_conf);
+
+ return ide_config_drive_speed(drive, speed);
+}
+
+static int hpt372_tune_chipset(ide_drive_t *drive, u8 xferspeed)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 speed = hpt3xx_ratefilter(drive, xferspeed);
+// u8 speed = ide_rate_filter(hpt3xx_ratemask(drive), xferspeed);
+ u8 regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
+ u8 drive_fast = 0, drive_pci = 0x40 + (drive->dn * 4);
+ u32 list_conf = 0, drive_conf = 0;
+ u32 conf_mask = (speed >= XFER_MW_DMA_0) ? 0xc0000000 : 0x30070000;
+
+ /*
+ * Disable the "fast interrupt" prediction.
+ * don't holdoff on interrupts. (== 0x01 despite what the docs say)
+ */
+ pci_read_config_byte(dev, regfast, &drive_fast);
+ drive_fast &= ~0x07;
+ pci_write_config_byte(dev, regfast, drive_fast);
+
+ list_conf = pci_bus_clock_list(speed,
+ (struct chipset_bus_clock_list_entry *)
+ pci_get_drvdata(dev));
+ pci_read_config_dword(dev, drive_pci, &drive_conf);
+ list_conf = (list_conf & ~conf_mask) | (drive_conf & conf_mask);
+ if (speed < XFER_MW_DMA_0)
+ list_conf &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
+ pci_write_config_dword(dev, drive_pci, list_conf);
+
+ return ide_config_drive_speed(drive, speed);
+}
+
+static int hpt3xx_tune_chipset (ide_drive_t *drive, u8 speed)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+
+ if (hpt_minimum_revision(dev, 8))
+ return hpt372_tune_chipset(drive, speed); /* not a typo */
+#if 0
+ else if (hpt_minimum_revision(dev, 7))
+ hpt371_tune_chipset(drive, speed);
+ else if (hpt_minimum_revision(dev, 6))
+ hpt302_tune_chipset(drive, speed);
+#endif
+ else if (hpt_minimum_revision(dev, 5))
+ return hpt372_tune_chipset(drive, speed);
+ else if (hpt_minimum_revision(dev, 3))
+ return hpt370_tune_chipset(drive, speed);
+ else /* hpt368: hpt_minimum_revision(dev, 2) */
+ return hpt36x_tune_chipset(drive, speed);
+}
+
+static void hpt3xx_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ pio = ide_get_best_pio_mode(drive, 255, pio, NULL);
+ (void) hpt3xx_tune_chipset(drive, (XFER_PIO_0 + pio));
+}
+
+/*
+ * This allows the configuration of ide_pci chipset registers
+ * for cards that learn about the drive's UDMA, DMA, PIO capabilities
+ * after the drive is reported by the OS. Initially for designed for
+ * HPT366 UDMA chipset by HighPoint|Triones Technologies, Inc.
+ *
+ * check_in_drive_lists(drive, bad_ata66_4)
+ * check_in_drive_lists(drive, bad_ata66_3)
+ * check_in_drive_lists(drive, bad_ata33)
+ *
+ */
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, hpt3xx_ratemask(drive));
+
+ if (!(speed))
+ return 0;
+
+ (void) hpt3xx_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int hpt3xx_quirkproc (ide_drive_t *drive)
+{
+ return ((int) check_in_drive_lists(drive, quirk_drives));
+}
+
+static void hpt3xx_intrproc (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+
+ if (drive->quirk_list)
+ return;
+ /* drives in the quirk_list may not like intr setups/cleanups */
+ hwif->OUTB(drive->ctl|2, IDE_CONTROL_REG);
+}
+
+static void hpt3xx_maskproc (ide_drive_t *drive, int mask)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+
+ if (drive->quirk_list) {
+ if (hpt_minimum_revision(dev,3)) {
+ u8 reg5a = 0;
+ pci_read_config_byte(dev, 0x5a, ®5a);
+ if (((reg5a & 0x10) >> 4) != mask)
+ pci_write_config_byte(dev, 0x5a, mask ? (reg5a | 0x10) : (reg5a & ~0x10));
+ } else {
+ if (mask) {
+ disable_irq(HWIF(drive)->irq);
+ } else {
+ enable_irq(HWIF(drive)->irq);
+ }
+ }
+ } else {
+ if (IDE_CONTROL_REG)
+ HWIF(drive)->OUTB(mask ? (drive->ctl | 2) :
+ (drive->ctl & ~2),
+ IDE_CONTROL_REG);
+ }
+}
+
+static int hpt366_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if (id && (id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ hpt3xx_tune_drive(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+/*
+ * This is specific to the HPT366 UDMA bios chipset
+ * by HighPoint|Triones Technologies, Inc.
+ */
+static int hpt366_ide_dma_lostirq (ide_drive_t *drive)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 reg50h = 0, reg52h = 0, reg5ah = 0;
+
+ pci_read_config_byte(dev, 0x50, ®50h);
+ pci_read_config_byte(dev, 0x52, ®52h);
+ pci_read_config_byte(dev, 0x5a, ®5ah);
+ printk("%s: (%s) reg50h=0x%02x, reg52h=0x%02x, reg5ah=0x%02x\n",
+ drive->name, __FUNCTION__, reg50h, reg52h, reg5ah);
+ if (reg5ah & 0x10)
+ pci_write_config_byte(dev, 0x5a, reg5ah & ~0x10);
+#if 0
+ /* how about we flush and reset, mmmkay? */
+ pci_write_config_byte(dev, 0x51, 0x1F);
+ /* fall through to a reset */
+ case dma_start:
+ case ide_dma_end:
+ /* reset the chips state over and over.. */
+ pci_write_config_byte(dev, 0x51, 0x13);
+#endif
+ return __ide_dma_lostirq(drive);
+}
+
+static void hpt370_clear_engine (ide_drive_t *drive)
+{
+ u8 regstate = HWIF(drive)->channel ? 0x54 : 0x50;
+ pci_write_config_byte(HWIF(drive)->pci_dev, regstate, 0x37);
+ udelay(10);
+}
+
+static void hpt370_ide_dma_start(ide_drive_t *drive)
+{
+#ifdef HPT_RESET_STATE_ENGINE
+ hpt370_clear_engine(drive);
+#endif
+ ide_dma_start(drive);
+}
+
+static int hpt370_ide_dma_end (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 dma_stat = hwif->INB(hwif->dma_status);
+
+ if (dma_stat & 0x01) {
+ /* wait a little */
+ udelay(20);
+ dma_stat = hwif->INB(hwif->dma_status);
+ }
+ if ((dma_stat & 0x01) != 0)
+ /* fallthrough */
+ (void) HWIF(drive)->ide_dma_timeout(drive);
+
+ return __ide_dma_end(drive);
+}
+
+static void hpt370_lostirq_timeout (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 bfifo = 0, reginfo = hwif->channel ? 0x56 : 0x52;
+ u8 dma_stat = 0, dma_cmd = 0;
+
+ pci_read_config_byte(HWIF(drive)->pci_dev, reginfo, &bfifo);
+ printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
+ hpt370_clear_engine(drive);
+ /* get dma command mode */
+ dma_cmd = hwif->INB(hwif->dma_command);
+ /* stop dma */
+ hwif->OUTB(dma_cmd & ~0x1, hwif->dma_command);
+ dma_stat = hwif->INB(hwif->dma_status);
+ /* clear errors */
+ hwif->OUTB(dma_stat | 0x6, hwif->dma_status);
+}
+
+static int hpt370_ide_dma_timeout (ide_drive_t *drive)
+{
+ hpt370_lostirq_timeout(drive);
+ hpt370_clear_engine(drive);
+ return __ide_dma_timeout(drive);
+}
+
+static int hpt370_ide_dma_lostirq (ide_drive_t *drive)
+{
+ hpt370_lostirq_timeout(drive);
+ hpt370_clear_engine(drive);
+ return __ide_dma_lostirq(drive);
+}
+
+/* returns 1 if DMA IRQ issued, 0 otherwise */
+static int hpt374_ide_dma_test_irq(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u16 bfifo = 0;
+ u8 reginfo = hwif->channel ? 0x56 : 0x52;
+ u8 dma_stat;
+
+ pci_read_config_word(hwif->pci_dev, reginfo, &bfifo);
+ if (bfifo & 0x1FF) {
+// printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
+ return 0;
+ }
+
+ dma_stat = hwif->INB(hwif->dma_status);
+ /* return 1 if INTR asserted */
+ if ((dma_stat & 4) == 4)
+ return 1;
+
+ if (!drive->waiting_for_dma)
+ printk(KERN_WARNING "%s: (%s) called while not waiting\n",
+ drive->name, __FUNCTION__);
+ return 0;
+}
+
+static int hpt374_ide_dma_end (ide_drive_t *drive)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 msc_stat = 0, mscreg = hwif->channel ? 0x54 : 0x50;
+ u8 bwsr_stat = 0, bwsr_mask = hwif->channel ? 0x02 : 0x01;
+
+ pci_read_config_byte(dev, 0x6a, &bwsr_stat);
+ pci_read_config_byte(dev, mscreg, &msc_stat);
+ if ((bwsr_stat & bwsr_mask) == bwsr_mask)
+ pci_write_config_byte(dev, mscreg, msc_stat|0x30);
+ return __ide_dma_end(drive);
+}
+
+/**
+ * hpt372n_set_clock - perform clock switching dance
+ * @drive: Drive to switch
+ * @mode: Switching mode (0x21 for write, 0x23 otherwise)
+ *
+ * Switch the DPLL clock on the HPT372N devices. This is a
+ * right mess.
+ */
+
+static void hpt372n_set_clock(ide_drive_t *drive, int mode)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+
+ /* FIXME: should we check for DMA active and BUG() */
+ /* Tristate the bus */
+ outb(0x80, hwif->dma_base+0x73);
+ outb(0x80, hwif->dma_base+0x77);
+
+ /* Switch clock and reset channels */
+ outb(mode, hwif->dma_base+0x7B);
+ outb(0xC0, hwif->dma_base+0x79);
+
+ /* Reset state machines */
+ outb(0x37, hwif->dma_base+0x70);
+ outb(0x37, hwif->dma_base+0x74);
+
+ /* Complete reset */
+ outb(0x00, hwif->dma_base+0x79);
+
+ /* Reconnect channels to bus */
+ outb(0x00, hwif->dma_base+0x73);
+ outb(0x00, hwif->dma_base+0x77);
+}
+
+/**
+ * hpt372n_rw_disk - prepare for I/O
+ * @drive: drive for command
+ * @rq: block request structure
+ *
+ * This is called when a disk I/O is issued to the 372N.
+ * We need it because of the clock switching.
+ */
+
+static void hpt372n_rw_disk(ide_drive_t *drive, struct request *rq)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ int wantclock;
+
+ wantclock = rq_data_dir(rq) ? 0x23 : 0x21;
+
+ if (hwif->config_data != wantclock) {
+ hpt372n_set_clock(drive, wantclock);
+ hwif->config_data = wantclock;
+ }
+}
+
+/*
+ * Since SUN Cobalt is attempting to do this operation, I should disclose
+ * this has been a long time ago Thu Jul 27 16:40:57 2000 was the patch date
+ * HOTSWAP ATA Infrastructure.
+ */
+
+static void hpt3xx_reset (ide_drive_t *drive)
+{
+#if 0
+ unsigned long high_16 = pci_resource_start(HWIF(drive)->pci_dev, 4);
+ u8 reset = (HWIF(drive)->channel) ? 0x80 : 0x40;
+ u8 reg59h = 0;
+
+ pci_read_config_byte(HWIF(drive)->pci_dev, 0x59, ®59h);
+ pci_write_config_byte(HWIF(drive)->pci_dev, 0x59, reg59h|reset);
+ pci_write_config_byte(HWIF(drive)->pci_dev, 0x59, reg59h);
+#endif
+}
+
+static int hpt3xx_tristate (ide_drive_t * drive, int state)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 reg59h = 0, reset = (hwif->channel) ? 0x80 : 0x40;
+ u8 regXXh = 0, state_reg= (hwif->channel) ? 0x57 : 0x53;
+
+// hwif->bus_state = state;
+
+ pci_read_config_byte(dev, 0x59, ®59h);
+ pci_read_config_byte(dev, state_reg, ®XXh);
+
+ if (state) {
+ (void) ide_do_reset(drive);
+ pci_write_config_byte(dev, state_reg, regXXh|0x80);
+ pci_write_config_byte(dev, 0x59, reg59h|reset);
+ } else {
+ pci_write_config_byte(dev, 0x59, reg59h & ~(reset));
+ pci_write_config_byte(dev, state_reg, regXXh & ~(0x80));
+ (void) ide_do_reset(drive);
+ }
+ return 0;
+}
+
+/*
+ * set/get power state for a drive.
+ * turning the power off does the following things:
+ * 1) soft-reset the drive
+ * 2) tri-states the ide bus
+ *
+ * when we turn things back on, we need to re-initialize things.
+ */
+#define TRISTATE_BIT 0x8000
+static int hpt370_busproc(ide_drive_t * drive, int state)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 tristate = 0, resetmask = 0, bus_reg = 0;
+ u16 tri_reg;
+
+ hwif->bus_state = state;
+
+ if (hwif->channel) {
+ /* secondary channel */
+ tristate = 0x56;
+ resetmask = 0x80;
+ } else {
+ /* primary channel */
+ tristate = 0x52;
+ resetmask = 0x40;
+ }
+
+ /* grab status */
+ pci_read_config_word(dev, tristate, &tri_reg);
+ pci_read_config_byte(dev, 0x59, &bus_reg);
+
+ /* set the state. we don't set it if we don't need to do so.
+ * make sure that the drive knows that it has failed if it's off */
+ switch (state) {
+ case BUSSTATE_ON:
+ hwif->drives[0].failures = 0;
+ hwif->drives[1].failures = 0;
+ if ((bus_reg & resetmask) == 0)
+ return 0;
+ tri_reg &= ~TRISTATE_BIT;
+ bus_reg &= ~resetmask;
+ break;
+ case BUSSTATE_OFF:
+ hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
+ hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
+ if ((tri_reg & TRISTATE_BIT) == 0 && (bus_reg & resetmask))
+ return 0;
+ tri_reg &= ~TRISTATE_BIT;
+ bus_reg |= resetmask;
+ break;
+ case BUSSTATE_TRISTATE:
+ hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
+ hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
+ if ((tri_reg & TRISTATE_BIT) && (bus_reg & resetmask))
+ return 0;
+ tri_reg |= TRISTATE_BIT;
+ bus_reg |= resetmask;
+ break;
+ }
+ pci_write_config_byte(dev, 0x59, bus_reg);
+ pci_write_config_word(dev, tristate, tri_reg);
+
+ return 0;
+}
+
+static int __devinit init_hpt37x(struct pci_dev *dev)
+{
+ int adjust, i;
+ u16 freq;
+ u32 pll;
+ u8 reg5bh;
+ u8 reg5ah = 0;
+ unsigned long dmabase = pci_resource_start(dev, 4);
+ u8 did, rid;
+ int is_372n = 0;
+
+ pci_read_config_byte(dev, 0x5a, ®5ah);
+ /* interrupt force enable */
+ pci_write_config_byte(dev, 0x5a, (reg5ah & ~0x10));
+
+ if(dmabase)
+ {
+ did = inb(dmabase + 0x22);
+ rid = inb(dmabase + 0x28);
+
+ if((did == 4 && rid == 6) || (did == 5 && rid > 1))
+ is_372n = 1;
+ }
+
+ /*
+ * default to pci clock. make sure MA15/16 are set to output
+ * to prevent drives having problems with 40-pin cables.
+ */
+ pci_write_config_byte(dev, 0x5b, 0x23);
+
+ /*
+ * set up the PLL. we need to adjust it so that it's stable.
+ * freq = Tpll * 192 / Tpci
+ *
+ * Todo. For non x86 should probably check the dword is
+ * set to 0xABCDExxx indicating the BIOS saved f_CNT
+ */
+ pci_read_config_word(dev, 0x78, &freq);
+ freq &= 0x1FF;
+
+ /*
+ * The 372N uses different PCI clock information and has
+ * some other complications
+ * On PCI33 timing we must clock switch
+ * On PCI66 timing we must NOT use the PCI clock
+ *
+ * Currently we always set up the PLL for the 372N
+ */
+
+ pci_set_drvdata(dev, NULL);
+
+ if(is_372n)
+ {
+ printk(KERN_INFO "hpt: HPT372N detected, using 372N timing.\n");
+ if(freq < 0x55)
+ pll = F_LOW_PCI_33;
+ else if(freq < 0x70)
+ pll = F_LOW_PCI_40;
+ else if(freq < 0x7F)
+ pll = F_LOW_PCI_50;
+ else
+ pll = F_LOW_PCI_66;
+
+ printk(KERN_INFO "FREQ: %d PLL: %d\n", freq, pll);
+
+ /* We always use the pll not the PCI clock on 372N */
+ }
+ else
+ {
+ if(freq < 0x9C)
+ pll = F_LOW_PCI_33;
+ else if(freq < 0xb0)
+ pll = F_LOW_PCI_40;
+ else if(freq <0xc8)
+ pll = F_LOW_PCI_50;
+ else
+ pll = F_LOW_PCI_66;
+
+ if (pll == F_LOW_PCI_33) {
+ if (hpt_minimum_revision(dev,8))
+ pci_set_drvdata(dev, (void *) thirty_three_base_hpt374);
+ else if (hpt_minimum_revision(dev,5))
+ pci_set_drvdata(dev, (void *) thirty_three_base_hpt372);
+ else if (hpt_minimum_revision(dev,4))
+ pci_set_drvdata(dev, (void *) thirty_three_base_hpt370a);
+ else
+ pci_set_drvdata(dev, (void *) thirty_three_base_hpt370);
+ printk("HPT37X: using 33MHz PCI clock\n");
+ } else if (pll == F_LOW_PCI_40) {
+ /* Unsupported */
+ } else if (pll == F_LOW_PCI_50) {
+ if (hpt_minimum_revision(dev,8))
+ pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
+ else if (hpt_minimum_revision(dev,5))
+ pci_set_drvdata(dev, (void *) fifty_base_hpt372);
+ else if (hpt_minimum_revision(dev,4))
+ pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
+ else
+ pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
+ printk("HPT37X: using 50MHz PCI clock\n");
+ } else {
+ if (hpt_minimum_revision(dev,8))
+ {
+ printk(KERN_ERR "HPT37x: 66MHz timings are not supported.\n");
+ }
+ else if (hpt_minimum_revision(dev,5))
+ pci_set_drvdata(dev, (void *) sixty_six_base_hpt372);
+ else if (hpt_minimum_revision(dev,4))
+ pci_set_drvdata(dev, (void *) sixty_six_base_hpt370a);
+ else
+ pci_set_drvdata(dev, (void *) sixty_six_base_hpt370);
+ printk("HPT37X: using 66MHz PCI clock\n");
+ }
+ }
+
+ /*
+ * only try the pll if we don't have a table for the clock
+ * speed that we're running at. NOTE: the internal PLL will
+ * result in slow reads when using a 33MHz PCI clock. we also
+ * don't like to use the PLL because it will cause glitches
+ * on PRST/SRST when the HPT state engine gets reset.
+ */
+ if (pci_get_drvdata(dev))
+ goto init_hpt37X_done;
+
+ /*
+ * adjust PLL based upon PCI clock, enable it, and wait for
+ * stabilization.
+ */
+ adjust = 0;
+ freq = (pll < F_LOW_PCI_50) ? 2 : 4;
+ while (adjust++ < 6) {
+ pci_write_config_dword(dev, 0x5c, (freq + pll) << 16 |
+ pll | 0x100);
+
+ /* wait for clock stabilization */
+ for (i = 0; i < 0x50000; i++) {
+ pci_read_config_byte(dev, 0x5b, ®5bh);
+ if (reg5bh & 0x80) {
+ /* spin looking for the clock to destabilize */
+ for (i = 0; i < 0x1000; ++i) {
+ pci_read_config_byte(dev, 0x5b,
+ ®5bh);
+ if ((reg5bh & 0x80) == 0)
+ goto pll_recal;
+ }
+ pci_read_config_dword(dev, 0x5c, &pll);
+ pci_write_config_dword(dev, 0x5c,
+ pll & ~0x100);
+ pci_write_config_byte(dev, 0x5b, 0x21);
+ if (hpt_minimum_revision(dev,8))
+ pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
+ else if (hpt_minimum_revision(dev,5))
+ pci_set_drvdata(dev, (void *) fifty_base_hpt372);
+ else if (hpt_minimum_revision(dev,4))
+ pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
+ else
+ pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
+ printk("HPT37X: using 50MHz internal PLL\n");
+ goto init_hpt37X_done;
+ }
+ }
+pll_recal:
+ if (adjust & 1)
+ pll -= (adjust >> 1);
+ else
+ pll += (adjust >> 1);
+ }
+
+init_hpt37X_done:
+ /* reset state engine */
+ pci_write_config_byte(dev, 0x50, 0x37);
+ pci_write_config_byte(dev, 0x54, 0x37);
+ udelay(100);
+ return 0;
+}
+
+static int __devinit init_hpt366(struct pci_dev *dev)
+{
+ u32 reg1 = 0;
+ u8 drive_fast = 0;
+
+ /*
+ * Disable the "fast interrupt" prediction.
+ */
+ 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);
+
+ /* detect bus speed by looking at control reg timing: */
+ switch((reg1 >> 8) & 7) {
+ case 5:
+ pci_set_drvdata(dev, (void *) forty_base_hpt366);
+ break;
+ case 9:
+ pci_set_drvdata(dev, (void *) twenty_five_base_hpt366);
+ break;
+ case 7:
+ default:
+ pci_set_drvdata(dev, (void *) thirty_three_base_hpt366);
+ break;
+ }
+
+ if (!pci_get_drvdata(dev))
+ {
+ printk(KERN_ERR "hpt366: unknown bus timing.\n");
+ pci_set_drvdata(dev, NULL);
+ }
+ return 0;
+}
+
+static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
+{
+ int ret = 0;
+ u8 test = 0;
+
+ if (dev->resource[PCI_ROM_RESOURCE].start)
+ pci_write_config_byte(dev, PCI_ROM_ADDRESS,
+ dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+
+ pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &test);
+ if (test != (L1_CACHE_BYTES / 4))
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
+ (L1_CACHE_BYTES / 4));
+
+ pci_read_config_byte(dev, PCI_LATENCY_TIMER, &test);
+ if (test != 0x78)
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
+
+ pci_read_config_byte(dev, PCI_MIN_GNT, &test);
+ if (test != 0x08)
+ pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
+
+ pci_read_config_byte(dev, PCI_MAX_LAT, &test);
+ if (test != 0x08)
+ pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
+
+ if (hpt_minimum_revision(dev, 3)) {
+ ret = init_hpt37x(dev);
+ } else {
+ ret =init_hpt366(dev);
+ }
+ if (ret)
+ return ret;
+
+ return dev->irq;
+}
+
+static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 ata66 = 0, regmask = (hwif->channel) ? 0x01 : 0x02;
+ u8 did, rid;
+ unsigned long dmabase = hwif->dma_base;
+ int is_372n = 0;
+
+ if(dmabase)
+ {
+ did = inb(dmabase + 0x22);
+ rid = inb(dmabase + 0x28);
+
+ if((did == 4 && rid == 6) || (did == 5 && rid > 1))
+ is_372n = 1;
+ }
+
+ hwif->tuneproc = &hpt3xx_tune_drive;
+ hwif->speedproc = &hpt3xx_tune_chipset;
+ hwif->quirkproc = &hpt3xx_quirkproc;
+ hwif->intrproc = &hpt3xx_intrproc;
+ hwif->maskproc = &hpt3xx_maskproc;
+
+ if(is_372n)
+ hwif->rw_disk = &hpt372n_rw_disk;
+
+ /*
+ * The HPT37x uses the CBLID pins as outputs for MA15/MA16
+ * address lines to access an external eeprom. To read valid
+ * cable detect state the pins must be enabled as inputs.
+ */
+ if (hpt_minimum_revision(dev, 8) && PCI_FUNC(dev->devfn) & 1) {
+ /*
+ * HPT374 PCI function 1
+ * - set bit 15 of reg 0x52 to enable TCBLID as input
+ * - set bit 15 of reg 0x56 to enable FCBLID as input
+ */
+ u16 mcr3, mcr6;
+ pci_read_config_word(dev, 0x52, &mcr3);
+ pci_read_config_word(dev, 0x56, &mcr6);
+ pci_write_config_word(dev, 0x52, mcr3 | 0x8000);
+ pci_write_config_word(dev, 0x56, mcr6 | 0x8000);
+ /* now read cable id register */
+ pci_read_config_byte(dev, 0x5a, &ata66);
+ pci_write_config_word(dev, 0x52, mcr3);
+ pci_write_config_word(dev, 0x56, mcr6);
+ } else if (hpt_minimum_revision(dev, 3)) {
+ /*
+ * HPT370/372 and 374 pcifn 0
+ * - clear bit 0 of 0x5b to enable P/SCBLID as inputs
+ */
+ u8 scr2;
+ pci_read_config_byte(dev, 0x5b, &scr2);
+ pci_write_config_byte(dev, 0x5b, scr2 & ~1);
+ /* now read cable id register */
+ pci_read_config_byte(dev, 0x5a, &ata66);
+ pci_write_config_byte(dev, 0x5b, scr2);
+ } else {
+ pci_read_config_byte(dev, 0x5a, &ata66);
+ }
+
+#ifdef DEBUG
+ printk("HPT366: reg5ah=0x%02x ATA-%s Cable Port%d\n",
+ ata66, (ata66 & regmask) ? "33" : "66",
+ PCI_FUNC(hwif->pci_dev->devfn));
+#endif /* DEBUG */
+
+#ifdef HPT_SERIALIZE_IO
+ /* serialize access to this device */
+ if (hwif->mate)
+ hwif->serialized = hwif->mate->serialized = 1;
+#endif
+
+ if (hpt_minimum_revision(dev,3)) {
+ u8 reg5ah = 0;
+ pci_write_config_byte(dev, 0x5a, reg5ah & ~0x10);
+ /*
+ * set up ioctl for power status.
+ * note: power affects both
+ * drives on each channel
+ */
+ hwif->resetproc = &hpt3xx_reset;
+ hwif->busproc = &hpt370_busproc;
+// hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
+ } else if (hpt_minimum_revision(dev,2)) {
+ hwif->resetproc = &hpt3xx_reset;
+ hwif->busproc = &hpt3xx_tristate;
+ } else {
+ hwif->resetproc = &hpt3xx_reset;
+ hwif->busproc = &hpt3xx_tristate;
+ }
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+
+ if (!(hwif->udma_four))
+ hwif->udma_four = ((ata66 & regmask) ? 0 : 1);
+ hwif->ide_dma_check = &hpt366_config_drive_xfer_rate;
+
+ if (hpt_minimum_revision(dev,8)) {
+ hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
+ hwif->ide_dma_end = &hpt374_ide_dma_end;
+ } else if (hpt_minimum_revision(dev,5)) {
+ hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
+ hwif->ide_dma_end = &hpt374_ide_dma_end;
+ } else if (hpt_minimum_revision(dev,3)) {
+ hwif->dma_start = &hpt370_ide_dma_start;
+ hwif->ide_dma_end = &hpt370_ide_dma_end;
+ hwif->ide_dma_timeout = &hpt370_ide_dma_timeout;
+ hwif->ide_dma_lostirq = &hpt370_ide_dma_lostirq;
+ } else if (hpt_minimum_revision(dev,2))
+ hwif->ide_dma_lostirq = &hpt366_ide_dma_lostirq;
+ else
+ hwif->ide_dma_lostirq = &hpt366_ide_dma_lostirq;
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static void __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long dmabase)
+{
+ u8 masterdma = 0, slavedma = 0;
+ u8 dma_new = 0, dma_old = 0;
+ u8 primary = hwif->channel ? 0x4b : 0x43;
+ u8 secondary = hwif->channel ? 0x4f : 0x47;
+ unsigned long flags;
+
+ if (!dmabase)
+ return;
+
+ if(pci_get_drvdata(hwif->pci_dev) == NULL)
+ {
+ printk(KERN_WARNING "hpt: no known IDE timings, disabling DMA.\n");
+ return;
+ }
+
+ dma_old = hwif->INB(dmabase+2);
+
+ local_irq_save(flags);
+
+ dma_new = dma_old;
+ pci_read_config_byte(hwif->pci_dev, primary, &masterdma);
+ pci_read_config_byte(hwif->pci_dev, secondary, &slavedma);
+
+ if (masterdma & 0x30) dma_new |= 0x20;
+ if (slavedma & 0x30) dma_new |= 0x40;
+ if (dma_new != dma_old)
+ hwif->OUTB(dma_new, dmabase+2);
+
+ local_irq_restore(flags);
+
+ ide_setup_dma(hwif, dmabase, 8);
+}
+
+static int __devinit init_setup_hpt374(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ struct pci_dev *findev = NULL;
+
+ if (PCI_FUNC(dev->devfn) & 1)
+ return -ENODEV;
+
+ while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
+ if ((findev->vendor == dev->vendor) &&
+ (findev->device == dev->device) &&
+ ((findev->devfn - dev->devfn) == 1) &&
+ (PCI_FUNC(findev->devfn) & 1)) {
+ if (findev->irq != dev->irq) {
+ /* FIXME: we need a core pci_set_interrupt() */
+ findev->irq = dev->irq;
+ printk(KERN_WARNING "%s: pci-config space interrupt "
+ "fixed.\n", d->name);
+ }
+ return ide_setup_pci_devices(dev, findev, d);
+ }
+ }
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_hpt37x(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_hpt366(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ struct pci_dev *findev = NULL;
+ u8 pin1 = 0, pin2 = 0;
+ unsigned int class_rev;
+ char *chipset_names[] = {"HPT366", "HPT366", "HPT368",
+ "HPT370", "HPT370A", "HPT372",
+ "HPT372N" };
+
+ if (PCI_FUNC(dev->devfn) & 1)
+ return -ENODEV;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+
+ if(dev->device == PCI_DEVICE_ID_TTI_HPT372N)
+ class_rev = 6;
+
+ if(class_rev <= 6)
+ d->name = chipset_names[class_rev];
+
+ switch(class_rev) {
+ case 6:
+ case 5:
+ case 4:
+ case 3:
+ goto init_single;
+ default:
+ break;
+ }
+
+ d->channels = 1;
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
+ while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
+ if ((findev->vendor == dev->vendor) &&
+ (findev->device == dev->device) &&
+ ((findev->devfn - dev->devfn) == 1) &&
+ (PCI_FUNC(findev->devfn) & 1)) {
+ pci_read_config_byte(findev, PCI_INTERRUPT_PIN, &pin2);
+ if ((pin1 != pin2) && (dev->irq == findev->irq)) {
+ d->bootable = ON_BOARD;
+ printk("%s: onboard version of chipset, "
+ "pin1=%d pin2=%d\n", d->name,
+ pin1, pin2);
+ }
+ return ide_setup_pci_devices(dev, findev, d);
+ }
+ }
+init_single:
+ return ide_setup_pci_device(dev, d);
+}
+
+static ide_pci_device_t hpt366_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "HPT366",
+ .init_setup = init_setup_hpt366,
+ .init_chipset = init_chipset_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ .extra = 240
+ },{ /* 1 */
+ .name = "HPT372A",
+ .init_setup = init_setup_hpt37x,
+ .init_chipset = init_chipset_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 2 */
+ .name = "HPT302",
+ .init_setup = init_setup_hpt37x,
+ .init_chipset = init_chipset_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 3 */
+ .name = "HPT371",
+ .init_setup = init_setup_hpt37x,
+ .init_chipset = init_chipset_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 4 */
+ .name = "HPT374",
+ .init_setup = init_setup_hpt374,
+ .init_chipset = init_chipset_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2, /* 4 */
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 5 */
+ .name = "HPT372N",
+ .init_setup = init_setup_hpt37x,
+ .init_chipset = init_chipset_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2, /* 4 */
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ }
+};
+
+/**
+ * hpt366_init_one - called when an HPT366 is found
+ * @dev: the hpt366 device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &hpt366_chipsets[id->driver_data];
+
+ return d->init_setup(dev, d);
+}
+
+static struct pci_device_id hpt366_pci_tbl[] = {
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT366, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT302, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT374, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372N, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "HPT366_IDE",
+ .id_table = hpt366_pci_tbl,
+ .probe = hpt366_init_one,
+};
+
+static int hpt366_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(hpt366_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/it8172.c b/drivers/ide/pci/it8172.c
new file mode 100644
index 0000000..631927c
--- /dev/null
+++ b/drivers/ide/pci/it8172.c
@@ -0,0 +1,308 @@
+/*
+ *
+ * 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.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+#include <asm/it8172/it8172_int.h>
+
+/*
+ * Prototypes
+ */
+static u8 it8172_ratemask (ide_drive_t *drive)
+{
+ return 1;
+}
+
+static void it8172_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ int is_slave = (&hwif->drives[1] == drive);
+ unsigned long flags;
+ u16 drive_enables;
+ u32 drive_timing;
+
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ spin_lock_irqsave(&ide_lock, flags);
+ pci_read_config_word(dev, 0x40, &drive_enables);
+ pci_read_config_dword(dev, 0x44, &drive_timing);
+
+ /*
+ * 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.
+ */
+ drive_enables |= 0x4000;
+
+ if (is_slave) {
+ drive_enables &= 0xc006;
+ if (pio > 1)
+ /* enable prefetch and IORDY sample-point */
+ drive_enables |= 0x0060;
+ } else {
+ drive_enables &= 0xc060;
+ if (pio > 1)
+ /* enable prefetch and IORDY sample-point */
+ drive_enables |= 0x0006;
+ }
+
+ pci_write_config_word(dev, 0x40, drive_enables);
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+static u8 it8172_dma_2_pio (u8 xfer_rate)
+{
+ switch(xfer_rate) {
+ case XFER_UDMA_5:
+ case XFER_UDMA_4:
+ case XFER_UDMA_3:
+ case XFER_UDMA_2:
+ case XFER_UDMA_1:
+ case XFER_UDMA_0:
+ case XFER_MW_DMA_2:
+ case XFER_PIO_4:
+ return 4;
+ case XFER_MW_DMA_1:
+ case XFER_PIO_3:
+ return 3;
+ case XFER_SW_DMA_2:
+ case XFER_PIO_2:
+ return 2;
+ case XFER_MW_DMA_0:
+ case XFER_SW_DMA_1:
+ case XFER_SW_DMA_0:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ case XFER_PIO_SLOW:
+ default:
+ return 0;
+ }
+}
+
+static int it8172_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 speed = ide_rate_filter(it8172_ratemask(drive), xferspeed);
+ int a_speed = 3 << (drive->dn * 4);
+ int u_flag = 1 << drive->dn;
+ int u_speed = 0;
+ u8 reg48, reg4a;
+
+ pci_read_config_byte(dev, 0x48, ®48);
+ pci_read_config_byte(dev, 0x4a, ®4a);
+
+ /*
+ * 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.
+ */
+
+ switch(speed) {
+ case XFER_UDMA_4:
+ case XFER_UDMA_2: //u_speed = 2 << (drive->dn * 4); break;
+ 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:
+ case XFER_MW_DMA_0:
+ case XFER_SW_DMA_2: break;
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_0: break;
+ default: return -1;
+ }
+
+ if (speed >= XFER_UDMA_0) {
+ pci_write_config_byte(dev, 0x48, reg48 | u_flag);
+ reg4a &= ~a_speed;
+ pci_write_config_byte(dev, 0x4a, reg4a | u_speed);
+ } else {
+ pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
+ pci_write_config_byte(dev, 0x4a, reg4a & ~a_speed);
+ }
+
+ it8172_tune_drive(drive, it8172_dma_2_pio(speed));
+ return (ide_config_drive_speed(drive, speed));
+}
+
+static int it8172_config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, it8172_ratemask(drive));
+
+ if (!(speed)) {
+ u8 tspeed = ide_get_best_pio_mode(drive, 255, 4, NULL);
+ speed = it8172_dma_2_pio(XFER_PIO_0 + tspeed);
+ }
+
+ (void) it8172_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int it8172_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if (id && (id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (it8172_config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ it8172_tune_drive(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+static unsigned int __init init_chipset_it8172 (struct pci_dev *dev, const char *name)
+{
+ unsigned char progif;
+
+ /*
+ * Place both IDE interfaces into PCI "native" mode
+ */
+ pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
+ pci_write_config_byte(dev, PCI_CLASS_PROG, progif | 0x05);
+
+ return IT8172_IDE_IRQ;
+}
+
+
+static void __init init_hwif_it8172 (ide_hwif_t *hwif)
+{
+ struct pci_dev* dev = hwif->pci_dev;
+ unsigned long cmdBase, ctrlBase;
+
+ hwif->autodma = 0;
+ hwif->tuneproc = &it8172_tune_drive;
+ hwif->speedproc = &it8172_tune_chipset;
+
+ cmdBase = dev->resource[0].start;
+ ctrlBase = dev->resource[1].start;
+
+ ide_init_hwif_ports(&hwif->hw, cmdBase, ctrlBase | 2, NULL);
+ memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+ hwif->noprobe = 0;
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x07;
+ hwif->mwdma_mask = 0x06;
+ hwif->swdma_mask = 0x04;
+
+ hwif->ide_dma_check = &it8172_config_drive_xfer_rate;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t it8172_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "IT8172G",
+ .init_chipset = init_chipset_it8172,
+ .init_hwif = init_hwif_it8172,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x00,0x00,0x00}, {0x40,0x00,0x01}},
+ .bootable = ON_BOARD,
+ }
+};
+
+static int __devinit it8172_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ if ((!(PCI_FUNC(dev->devfn) & 1) ||
+ (!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE))))
+ return -ENODEV; /* IT8172 is more than an IDE controller */
+ return ide_setup_pci_device(dev, &it8172_chipsets[id->driver_data]);
+}
+
+static struct pci_device_id it8172_pci_tbl[] = {
+ { PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, it8172_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "IT8172_IDE",
+ .id_table = it8172_pci_tbl,
+ .probe = it8172_init_one,
+};
+
+static int it8172_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(it8172_ide_init);
+
+MODULE_AUTHOR("SteveL@mvista.com");
+MODULE_DESCRIPTION("PCI driver module for ITE 8172 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
new file mode 100644
index 0000000..205a32f
--- /dev/null
+++ b/drivers/ide/pci/ns87415.c
@@ -0,0 +1,315 @@
+/*
+ * linux/drivers/ide/pci/ns87415.c Version 2.00 Sep. 10, 2002
+ *
+ * Copyright (C) 1997-1998 Mark Lord <mlord@pobox.com>
+ * Copyright (C) 1998 Eddie C. Dost <ecd@skynet.be>
+ * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2004 Grant Grundler <grundler at parisc-linux.org>
+ *
+ * Inspired by an earlier effort from David S. Miller <davem@redhat.com>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#ifdef CONFIG_SUPERIO
+/* SUPERIO 87560 is a PoS chip that NatSem denies exists.
+ * Unfortunately, it's built-in on all Astro-based PA-RISC workstations
+ * which use the integrated NS87514 cell for CD-ROM support.
+ * i.e we have to support for CD-ROM installs.
+ * See drivers/parisc/superio.c for more gory details.
+ */
+#include <asm/superio.h>
+
+static unsigned long superio_ide_status[2];
+static unsigned long superio_ide_select[2];
+static unsigned long superio_ide_dma_status[2];
+
+#define SUPERIO_IDE_MAX_RETRIES 25
+
+/* Because of a defect in Super I/O, all reads of the PCI DMA status
+ * registers, IDE status register and the IDE select register need to be
+ * retried
+ */
+static u8 superio_ide_inb (unsigned long port)
+{
+ if (port == superio_ide_status[0] ||
+ port == superio_ide_status[1] ||
+ port == superio_ide_select[0] ||
+ port == superio_ide_select[1] ||
+ port == superio_ide_dma_status[0] ||
+ port == superio_ide_dma_status[1]) {
+ u8 tmp;
+ int retries = SUPERIO_IDE_MAX_RETRIES;
+
+ /* printk(" [ reading port 0x%x with retry ] ", port); */
+
+ do {
+ tmp = inb(port);
+ if (tmp == 0)
+ udelay(50);
+ } while (tmp == 0 && retries-- > 0);
+
+ return tmp;
+ }
+
+ return inb(port);
+}
+
+static void __devinit superio_ide_init_iops (struct hwif_s *hwif)
+{
+ u32 base, dmabase;
+ u8 tmp;
+ struct pci_dev *pdev = hwif->pci_dev;
+ u8 port = hwif->channel;
+
+ base = pci_resource_start(pdev, port * 2) & ~3;
+ dmabase = pci_resource_start(pdev, 4) & ~3;
+
+ superio_ide_status[port] = base + IDE_STATUS_OFFSET;
+ superio_ide_select[port] = base + IDE_SELECT_OFFSET;
+ superio_ide_dma_status[port] = dmabase + (!port ? 2 : 0xa);
+
+ /* Clear error/interrupt, enable dma */
+ tmp = superio_ide_inb(superio_ide_dma_status[port]);
+ outb(tmp | 0x66, superio_ide_dma_status[port]);
+
+ /* We need to override inb to workaround a SuperIO errata */
+ hwif->INB = superio_ide_inb;
+}
+
+static void __devinit init_iops_ns87415(ide_hwif_t *hwif)
+{
+ if (PCI_SLOT(hwif->pci_dev->devfn) == 0xE) {
+ /* Built-in - assume it's under superio. */
+ superio_ide_init_iops(hwif);
+ }
+}
+#endif
+
+static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 };
+
+/*
+ * This routine either enables/disables (according to drive->present)
+ * the IRQ associated with the port (HWIF(drive)),
+ * and selects either PIO or DMA handshaking for the next I/O operation.
+ */
+static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned int bit, other, new, *old = (unsigned int *) hwif->select_data;
+ struct pci_dev *dev = hwif->pci_dev;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ new = *old;
+
+ /* Adjust IRQ enable bit */
+ bit = 1 << (8 + hwif->channel);
+ new = drive->present ? (new & ~bit) : (new | bit);
+
+ /* Select PIO or DMA, DMA may only be selected for one drive/channel. */
+ bit = 1 << (20 + drive->select.b.unit + (hwif->channel << 1));
+ other = 1 << (20 + (1 - drive->select.b.unit) + (hwif->channel << 1));
+ new = use_dma ? ((new & ~other) | bit) : (new & ~bit);
+
+ if (new != *old) {
+ unsigned char stat;
+
+ /*
+ * Don't change DMA engine settings while Write Buffers
+ * are busy.
+ */
+ (void) pci_read_config_byte(dev, 0x43, &stat);
+ while (stat & 0x03) {
+ udelay(1);
+ (void) pci_read_config_byte(dev, 0x43, &stat);
+ }
+
+ *old = new;
+ (void) pci_write_config_dword(dev, 0x40, new);
+
+ /*
+ * And let things settle...
+ */
+ udelay(10);
+ }
+
+ local_irq_restore(flags);
+}
+
+static void ns87415_selectproc (ide_drive_t *drive)
+{
+ ns87415_prepare_drive (drive, drive->using_dma);
+}
+
+static int ns87415_ide_dma_end (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 dma_stat = 0, dma_cmd = 0;
+
+ drive->waiting_for_dma = 0;
+ dma_stat = hwif->INB(hwif->dma_status);
+ /* get dma command mode */
+ dma_cmd = hwif->INB(hwif->dma_command);
+ /* stop DMA */
+ hwif->OUTB(dma_cmd & ~1, hwif->dma_command);
+ /* from ERRATA: clear the INTR & ERROR bits */
+ dma_cmd = hwif->INB(hwif->dma_command);
+ hwif->OUTB(dma_cmd|6, hwif->dma_command);
+ /* and free any DMA resources */
+ ide_destroy_dmatable(drive);
+ /* verify good DMA status */
+ return (dma_stat & 7) != 4;
+}
+
+static int ns87415_ide_dma_setup(ide_drive_t *drive)
+{
+ /* select DMA xfer */
+ ns87415_prepare_drive(drive, 1);
+ if (!ide_dma_setup(drive))
+ return 0;
+ /* DMA failed: select PIO xfer */
+ ns87415_prepare_drive(drive, 0);
+ return 1;
+}
+
+static int ns87415_ide_dma_check (ide_drive_t *drive)
+{
+ if (drive->media != ide_disk)
+ return HWIF(drive)->ide_dma_off_quietly(drive);
+ return __ide_dma_check(drive);
+}
+
+static void __init init_hwif_ns87415 (ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ unsigned int ctrl, using_inta;
+ u8 progif;
+#ifdef __sparc_v9__
+ int timeout;
+ u8 stat;
+#endif
+
+ hwif->autodma = 0;
+ hwif->selectproc = &ns87415_selectproc;
+
+ /*
+ * We cannot probe for IRQ: both ports share common IRQ on INTA.
+ * Also, leave IRQ masked during drive probing, to prevent infinite
+ * interrupts from a potentially floating INTA..
+ *
+ * IRQs get unmasked in selectproc when drive is first used.
+ */
+ (void) pci_read_config_dword(dev, 0x40, &ctrl);
+ (void) pci_read_config_byte(dev, 0x09, &progif);
+ /* is irq in "native" mode? */
+ using_inta = progif & (1 << (hwif->channel << 1));
+ if (!using_inta)
+ using_inta = ctrl & (1 << (4 + hwif->channel));
+ if (hwif->mate) {
+ hwif->select_data = hwif->mate->select_data;
+ } else {
+ hwif->select_data = (unsigned long)
+ &ns87415_control[ns87415_count++];
+ ctrl |= (1 << 8) | (1 << 9); /* mask both IRQs */
+ if (using_inta)
+ ctrl &= ~(1 << 6); /* unmask INTA */
+ *((unsigned int *)hwif->select_data) = ctrl;
+ (void) pci_write_config_dword(dev, 0x40, ctrl);
+
+ /*
+ * Set prefetch size to 512 bytes for both ports,
+ * but don't turn on/off prefetching here.
+ */
+ pci_write_config_byte(dev, 0x55, 0xee);
+
+#ifdef __sparc_v9__
+ /*
+ * XXX: Reset the device, if we don't it will not respond
+ * to SELECT_DRIVE() properly during first probe_hwif().
+ */
+ timeout = 10000;
+ hwif->OUTB(12, hwif->io_ports[IDE_CONTROL_OFFSET]);
+ udelay(10);
+ hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
+ do {
+ udelay(50);
+ stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+ if (stat == 0xff)
+ break;
+ } while ((stat & BUSY_STAT) && --timeout);
+#endif
+ }
+
+ if (!using_inta)
+ hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
+ else if (!hwif->irq && hwif->mate && hwif->mate->irq)
+ hwif->irq = hwif->mate->irq; /* share IRQ with mate */
+
+ if (!hwif->dma_base)
+ return;
+
+ hwif->OUTB(0x60, hwif->dma_status);
+ hwif->dma_setup = &ns87415_ide_dma_setup;
+ hwif->ide_dma_check = &ns87415_ide_dma_check;
+ hwif->ide_dma_end = &ns87415_ide_dma_end;
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t ns87415_chipset __devinitdata = {
+ .name = "NS87415",
+#ifdef CONFIG_SUPERIO
+ .init_iops = init_iops_ns87415,
+#endif
+ .init_hwif = init_hwif_ns87415,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+};
+
+static int __devinit ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &ns87415_chipset);
+}
+
+static struct pci_device_id ns87415_pci_tbl[] = {
+ { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, ns87415_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "NS87415_IDE",
+ .id_table = ns87415_pci_tbl,
+ .probe = ns87415_init_one,
+};
+
+static int ns87415_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(ns87415_ide_init);
+
+MODULE_AUTHOR("Mark Lord, Eddie Dost, Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for NS87415 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c
new file mode 100644
index 0000000..cf4fd91
--- /dev/null
+++ b/drivers/ide/pci/opti621.c
@@ -0,0 +1,394 @@
+/*
+ * 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.
+ *
+ * OPTi is trademark of OPTi, Octek is trademark of Octek.
+ *
+ * I used docs from OPTi databook, from ftp.opti.com, file 9123-0002.ps
+ * and disassembled/traced setupvic.exe (DOS program).
+ * It increases kernel code about 2 kB.
+ * I don't have this card no more, but I hope I can get some in case
+ * of needed development.
+ * My card is Octek PIDE 1.01 (on card) or OPTiViC (program).
+ * It has a place for a secondary connector in circuit, but nothing
+ * is there. Also BIOS says no address for
+ * secondary controller (see bellow in ide_init_opti621).
+ * I've only tested this on my system, which only has one disk.
+ * It's Western Digital WDAC2850, with PIO mode 3. The PCI bus
+ * is at 20 MHz (I have DX2/80, I tried PCI at 40, but I got random
+ * lockups). I tried the OCTEK double speed CD-ROM and
+ * it does not work! But I can't boot DOS also, so it's probably
+ * hardware fault. I have connected Conner 80MB, the Seagate 850MB (no
+ * problems) and Seagate 1GB (as slave, WD as master). My experiences
+ * with the third, 1GB drive: I got 3MB/s (hdparm), but sometimes
+ * it slows to about 100kB/s! I don't know why and I have
+ * not this drive now, so I can't try it again.
+ * I write this driver because I lost the paper ("manual") with
+ * settings of jumpers on the card and I have to boot Linux with
+ * Loadlin except LILO, cause I have to run the setupvic.exe program
+ * already or I get disk errors (my test: rpm -Vf
+ * /usr/X11R6/bin/XF86_SVGA - or any big file).
+ * Some numbers from hdparm -t /dev/hda:
+ * Timing buffer-cache reads: 32 MB in 3.02 seconds =10.60 MB/sec
+ * Timing buffered disk reads: 16 MB in 5.52 seconds = 2.90 MB/sec
+ * I have 4 Megs/s before, but I don't know why (maybe changes
+ * in hdparm test).
+ * After release of 0.1, I got some successful reports, so it might work.
+ *
+ * The main problem with OPTi is that some timings for master
+ * and slave must be the same. For example, if you have master
+ * PIO 3 and slave PIO 0, driver have to set some timings of
+ * master for PIO 0. Second problem is that opti621_tune_drive
+ * got only one drive to set, but have to set both drives.
+ * This is solved in compute_pios. If you don't set
+ * the second drive, compute_pios use ide_get_best_pio_mode
+ * for autoselect mode (you can change it to PIO 0, if you want).
+ * If you then set the second drive to another PIO, the old value
+ * (automatically selected) will be overrided by yours.
+ * There is a 25/33MHz switch in configuration
+ * register, but driver is written for use at any frequency which get
+ * (use idebus=xx to select PCI bus speed).
+ * Use ide0=autotune for automatical tune of the PIO modes.
+ * If you get strange results, do not use this and set PIO manually
+ * by hdparm.
+ *
+ * Version 0.1, Nov 8, 1996
+ * by Jaromir Koutek, for 2.1.8.
+ * Initial version of driver.
+ *
+ * Version 0.2
+ * Number 0.2 skipped.
+ *
+ * Version 0.3, Nov 29, 1997
+ * by Mark Lord (probably), for 2.1.68
+ * Updates for use with new IDE block driver.
+ *
+ * Version 0.4, Dec 14, 1997
+ * by Jan Harkes
+ * Fixed some errors and cleaned the code.
+ *
+ * Version 0.5, Jan 2, 1998
+ * by Jaromir Koutek
+ * Updates for use with (again) new IDE block driver.
+ * Update of documentation.
+ *
+ * Version 0.6, Jan 2, 1999
+ * by Jaromir Koutek
+ * Reversed to version 0.3 of the driver, because
+ * 0.5 doesn't work.
+ */
+
+#undef REALLY_SLOW_IO /* most systems can safely undef this */
+#define OPTI621_DEBUG /* define for debug messages */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+
+#define OPTI621_MAX_PIO 3
+/* In fact, I do not have any PIO 4 drive
+ * (address: 25 ns, data: 70 ns, recovery: 35 ns),
+ * but OPTi 82C621 is programmable and it can do (minimal values):
+ * on 40MHz PCI bus (pulse 25 ns):
+ * address: 25 ns, data: 25 ns, recovery: 50 ns;
+ * on 20MHz PCI bus (pulse 50 ns):
+ * address: 50 ns, data: 50 ns, recovery: 100 ns.
+ */
+
+/* #define READ_PREFETCH 0 */
+/* Uncomment for disable read prefetch.
+ * There is some readprefetch capatibility in hdparm,
+ * but when I type hdparm -P 1 /dev/hda, I got errors
+ * and till reset drive is inaccessible.
+ * This (hw) read prefetch is safe on my drive.
+ */
+
+#ifndef READ_PREFETCH
+#define READ_PREFETCH 0x40 /* read prefetch is enabled */
+#endif /* else read prefetch is disabled */
+
+#define READ_REG 0 /* index of Read cycle timing register */
+#define WRITE_REG 1 /* index of Write cycle timing register */
+#define CNTRL_REG 3 /* index of Control register */
+#define STRAP_REG 5 /* index of Strap register */
+#define MISC_REG 6 /* index of Miscellaneous register */
+
+static int reg_base;
+
+#define PIO_NOT_EXIST 254
+#define PIO_DONT_KNOW 255
+
+/* there are stored pio numbers from other calls of opti621_tune_drive */
+static void compute_pios(ide_drive_t *drive, u8 pio)
+/* Store values into drive->drive_data
+ * second_contr - 0 for primary controller, 1 for secondary
+ * slave_drive - 0 -> pio is for master, 1 -> pio is for slave
+ * pio - PIO mode for selected drive (for other we don't know)
+ */
+{
+ int d;
+ ide_hwif_t *hwif = HWIF(drive);
+
+ drive->drive_data = ide_get_best_pio_mode(drive, pio, OPTI621_MAX_PIO, NULL);
+ for (d = 0; d < 2; ++d) {
+ drive = &hwif->drives[d];
+ if (drive->present) {
+ if (drive->drive_data == PIO_DONT_KNOW)
+ drive->drive_data = ide_get_best_pio_mode(drive, 255, OPTI621_MAX_PIO, NULL);
+#ifdef OPTI621_DEBUG
+ printk("%s: Selected PIO mode %d\n",
+ drive->name, drive->drive_data);
+#endif
+ } else {
+ drive->drive_data = PIO_NOT_EXIST;
+ }
+ }
+}
+
+static int cmpt_clk(int time, int bus_speed)
+/* Returns (rounded up) time in clocks for time in ns,
+ * with bus_speed in MHz.
+ * Example: bus_speed = 40 MHz, time = 80 ns
+ * 1000/40 = 25 ns (clk value),
+ * 80/25 = 3.2, rounded up to 4 (I hope ;-)).
+ * Use idebus=xx to select right frequency.
+ */
+{
+ return ((time*bus_speed+999)/1000);
+}
+
+static void write_reg(ide_hwif_t *hwif, u8 value, int reg)
+/* Write value to register reg, base of register
+ * is at reg_base (0x1f0 primary, 0x170 secondary,
+ * if not changed by PCI configuration).
+ * This is from setupvic.exe program.
+ */
+{
+ hwif->INW(reg_base+1);
+ hwif->INW(reg_base+1);
+ hwif->OUTB(3, reg_base+2);
+ hwif->OUTB(value, reg_base+reg);
+ hwif->OUTB(0x83, reg_base+2);
+}
+
+static u8 read_reg(ide_hwif_t *hwif, int reg)
+/* Read value from register reg, base of register
+ * is at reg_base (0x1f0 primary, 0x170 secondary,
+ * if not changed by PCI configuration).
+ * This is from setupvic.exe program.
+ */
+{
+ u8 ret = 0;
+
+ hwif->INW(reg_base+1);
+ hwif->INW(reg_base+1);
+ hwif->OUTB(3, reg_base+2);
+ ret = hwif->INB(reg_base+reg);
+ hwif->OUTB(0x83, reg_base+2);
+ return ret;
+}
+
+typedef struct pio_clocks_s {
+ int address_time; /* Address setup (clocks) */
+ int data_time; /* Active/data pulse (clocks) */
+ int recovery_time; /* Recovery time (clocks) */
+} pio_clocks_t;
+
+static void compute_clocks(int pio, pio_clocks_t *clks)
+{
+ if (pio != PIO_NOT_EXIST) {
+ int adr_setup, data_pls;
+ int bus_speed = system_bus_clock();
+
+ adr_setup = ide_pio_timings[pio].setup_time;
+ data_pls = ide_pio_timings[pio].active_time;
+ clks->address_time = cmpt_clk(adr_setup, bus_speed);
+ clks->data_time = cmpt_clk(data_pls, bus_speed);
+ clks->recovery_time = cmpt_clk(ide_pio_timings[pio].cycle_time
+ - adr_setup-data_pls, bus_speed);
+ if (clks->address_time<1) clks->address_time = 1;
+ if (clks->address_time>4) clks->address_time = 4;
+ if (clks->data_time<1) clks->data_time = 1;
+ if (clks->data_time>16) clks->data_time = 16;
+ if (clks->recovery_time<2) clks->recovery_time = 2;
+ if (clks->recovery_time>17) clks->recovery_time = 17;
+ } else {
+ clks->address_time = 1;
+ clks->data_time = 1;
+ clks->recovery_time = 2;
+ /* minimal values */
+ }
+
+}
+
+/* Main tune procedure, called from tuneproc. */
+static void opti621_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ /* primary and secondary drives share some registers,
+ * so we have to program both drives
+ */
+ unsigned long flags;
+ u8 pio1 = 0, pio2 = 0;
+ pio_clocks_t first, second;
+ int ax, drdy;
+ u8 cycle1, cycle2, misc;
+ ide_hwif_t *hwif = HWIF(drive);
+
+ /* sets drive->drive_data for both drives */
+ compute_pios(drive, pio);
+ pio1 = hwif->drives[0].drive_data;
+ pio2 = hwif->drives[1].drive_data;
+
+ compute_clocks(pio1, &first);
+ compute_clocks(pio2, &second);
+
+ /* ax = max(a1,a2) */
+ ax = (first.address_time < second.address_time) ? second.address_time : first.address_time;
+
+ drdy = 2; /* DRDY is default 2 (by OPTi Databook) */
+
+ cycle1 = ((first.data_time-1)<<4) | (first.recovery_time-2);
+ cycle2 = ((second.data_time-1)<<4) | (second.recovery_time-2);
+ misc = READ_PREFETCH | ((ax-1)<<4) | ((drdy-2)<<1);
+
+#ifdef OPTI621_DEBUG
+ printk("%s: master: address: %d, data: %d, "
+ "recovery: %d, drdy: %d [clk]\n",
+ hwif->name, ax, first.data_time,
+ first.recovery_time, drdy);
+ printk("%s: slave: address: %d, data: %d, "
+ "recovery: %d, drdy: %d [clk]\n",
+ hwif->name, ax, second.data_time,
+ second.recovery_time, drdy);
+#endif
+
+ spin_lock_irqsave(&ide_lock, flags);
+
+ reg_base = hwif->io_ports[IDE_DATA_OFFSET];
+
+ /* allow Register-B */
+ hwif->OUTB(0xc0, reg_base+CNTRL_REG);
+ /* hmm, setupvic.exe does this ;-) */
+ hwif->OUTB(0xff, reg_base+5);
+ /* if reads 0xff, adapter not exist? */
+ (void) hwif->INB(reg_base+CNTRL_REG);
+ /* if reads 0xc0, no interface exist? */
+ read_reg(hwif, CNTRL_REG);
+ /* read version, probably 0 */
+ read_reg(hwif, STRAP_REG);
+
+ /* program primary drive */
+ /* select Index-0 for Register-A */
+ write_reg(hwif, 0, MISC_REG);
+ /* set read cycle timings */
+ write_reg(hwif, cycle1, READ_REG);
+ /* set write cycle timings */
+ write_reg(hwif, cycle1, WRITE_REG);
+
+ /* program secondary drive */
+ /* select Index-1 for Register-B */
+ write_reg(hwif, 1, MISC_REG);
+ /* set read cycle timings */
+ write_reg(hwif, cycle2, READ_REG);
+ /* set write cycle timings */
+ write_reg(hwif, cycle2, WRITE_REG);
+
+ /* use Register-A for drive 0 */
+ /* use Register-B for drive 1 */
+ write_reg(hwif, 0x85, CNTRL_REG);
+
+ /* set address setup, DRDY timings, */
+ /* and read prefetch for both drives */
+ write_reg(hwif, misc, MISC_REG);
+
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+/*
+ * init_hwif_opti621() is called once for each hwif found at boot.
+ */
+static void __init init_hwif_opti621 (ide_hwif_t *hwif)
+{
+ hwif->autodma = 0;
+ hwif->drives[0].drive_data = PIO_DONT_KNOW;
+ hwif->drives[1].drive_data = PIO_DONT_KNOW;
+ hwif->tuneproc = &opti621_tune_drive;
+
+ if (!(hwif->dma_base))
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t opti621_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "OPTI621",
+ .init_hwif = init_hwif_opti621,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x45,0x80,0x00}, {0x40,0x08,0x00}},
+ .bootable = ON_BOARD,
+ },{ /* 1 */
+ .name = "OPTI621X",
+ .init_hwif = init_hwif_opti621,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x45,0x80,0x00}, {0x40,0x08,0x00}},
+ .bootable = ON_BOARD,
+ }
+};
+
+static int __devinit opti621_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &opti621_chipsets[id->driver_data]);
+}
+
+static struct pci_device_id opti621_pci_tbl[] = {
+ { 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, },
+};
+MODULE_DEVICE_TABLE(pci, opti621_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "Opti621_IDE",
+ .id_table = opti621_pci_tbl,
+ .probe = opti621_init_one,
+};
+
+static int opti621_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(opti621_ide_init);
+
+MODULE_AUTHOR("Jaromir Koutek, Jan Harkes, Mark Lord");
+MODULE_DESCRIPTION("PCI driver module for Opti621 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
new file mode 100644
index 0000000..211641a
--- /dev/null
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -0,0 +1,508 @@
+/*
+ * Promise TX2/TX4/TX2000/133 IDE driver
+ *
+ * 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.
+ *
+ * Split from:
+ * linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002
+ * 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
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_PPC_PMAC
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#endif
+
+#define PDC202_DEBUG_CABLE 0
+
+const static char *pdc_quirk_drives[] = {
+ "QUANTUM FIREBALLlct08 08",
+ "QUANTUM FIREBALLP KA6.4",
+ "QUANTUM FIREBALLP KA9.1",
+ "QUANTUM FIREBALLP LM20.4",
+ "QUANTUM FIREBALLP KX13.6",
+ "QUANTUM FIREBALLP KX20.5",
+ "QUANTUM FIREBALLP KX27.3",
+ "QUANTUM FIREBALLP LM20.5",
+ NULL
+};
+
+#define set_2regs(a, b) \
+ do { \
+ hwif->OUTB((a + adj), indexreg); \
+ hwif->OUTB(b, datareg); \
+ } while(0)
+
+#define set_ultra(a, b, c) \
+ do { \
+ set_2regs(0x10,(a)); \
+ set_2regs(0x11,(b)); \
+ set_2regs(0x12,(c)); \
+ } while(0)
+
+#define set_ata2(a, b) \
+ do { \
+ set_2regs(0x0e,(a)); \
+ set_2regs(0x0f,(b)); \
+ } while(0)
+
+#define set_pio(a, b, c) \
+ do { \
+ set_2regs(0x0c,(a)); \
+ set_2regs(0x0d,(b)); \
+ set_2regs(0x13,(c)); \
+ } while(0)
+
+static u8 pdcnew_ratemask (ide_drive_t *drive)
+{
+ u8 mode;
+
+ switch(HWIF(drive)->pci_dev->device) {
+ case PCI_DEVICE_ID_PROMISE_20277:
+ case PCI_DEVICE_ID_PROMISE_20276:
+ case PCI_DEVICE_ID_PROMISE_20275:
+ case PCI_DEVICE_ID_PROMISE_20271:
+ case PCI_DEVICE_ID_PROMISE_20269:
+ mode = 4;
+ break;
+ case PCI_DEVICE_ID_PROMISE_20270:
+ case PCI_DEVICE_ID_PROMISE_20268:
+ mode = 3;
+ break;
+ default:
+ return 0;
+ }
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+static int check_in_drive_lists (ide_drive_t *drive, const char **list)
+{
+ struct hd_driveid *id = drive->id;
+
+ if (pdc_quirk_drives == list) {
+ while (*list) {
+ if (strstr(id->model, *list++)) {
+ return 2;
+ }
+ }
+ } else {
+ while (*list) {
+ if (!strcmp(*list++,id->model)) {
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned long indexreg = hwif->dma_vendor1;
+ unsigned long datareg = hwif->dma_vendor3;
+ u8 thold = 0x10;
+ u8 adj = (drive->dn%2) ? 0x08 : 0x00;
+ u8 speed = ide_rate_filter(pdcnew_ratemask(drive), xferspeed);
+
+ if (speed == XFER_UDMA_2) {
+ hwif->OUTB((thold + adj), indexreg);
+ hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg);
+ }
+
+ switch (speed) {
+ case XFER_UDMA_7:
+ speed = XFER_UDMA_6;
+ case XFER_UDMA_6: set_ultra(0x1a, 0x01, 0xcb); break;
+ case XFER_UDMA_5: set_ultra(0x1a, 0x02, 0xcb); break;
+ case XFER_UDMA_4: set_ultra(0x1a, 0x03, 0xcd); break;
+ case XFER_UDMA_3: set_ultra(0x1a, 0x05, 0xcd); break;
+ case XFER_UDMA_2: set_ultra(0x2a, 0x07, 0xcd); break;
+ case XFER_UDMA_1: set_ultra(0x3a, 0x0a, 0xd0); break;
+ case XFER_UDMA_0: set_ultra(0x4a, 0x0f, 0xd5); break;
+ case XFER_MW_DMA_2: set_ata2(0x69, 0x25); break;
+ case XFER_MW_DMA_1: set_ata2(0x6b, 0x27); break;
+ case XFER_MW_DMA_0: set_ata2(0xdf, 0x5f); break;
+ case XFER_PIO_4: set_pio(0x23, 0x09, 0x25); break;
+ case XFER_PIO_3: set_pio(0x27, 0x0d, 0x35); break;
+ case XFER_PIO_2: set_pio(0x23, 0x26, 0x64); break;
+ case XFER_PIO_1: set_pio(0x46, 0x29, 0xa4); break;
+ case XFER_PIO_0: set_pio(0xfb, 0x2b, 0xac); break;
+ default:
+ ;
+ }
+
+ return (ide_config_drive_speed(drive, speed));
+}
+
+/* 0 1 2 3 4 5 6 7 8
+ * 960, 480, 390, 300, 240, 180, 120, 90, 60
+ * 180, 150, 120, 90, 60
+ * DMA_Speed
+ * 180, 120, 90, 90, 90, 60, 30
+ * 11, 5, 4, 3, 2, 1, 0
+ */
+static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
+{
+ u8 speed;
+
+ if (pio == 5) pio = 4;
+ speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);
+
+ (void)pdcnew_new_tune_chipset(drive, speed);
+}
+
+static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
+{
+ hwif->OUTB(0x0b, hwif->dma_vendor1);
+ return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04)));
+}
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ struct hd_driveid *id = drive->id;
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 speed = -1;
+ u8 cable;
+
+ u8 ultra_66 = ((id->dma_ultra & 0x0010) ||
+ (id->dma_ultra & 0x0008)) ? 1 : 0;
+
+ cable = pdcnew_new_cable_detect(hwif);
+
+ if (ultra_66 && cable) {
+ printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary");
+ printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
+ }
+
+ if (drive->media != ide_disk)
+ return 0;
+ if (id->capability & 4) { /* IORDY_EN & PREFETCH_EN */
+ hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1);
+ hwif->OUTB((hwif->INB(hwif->dma_vendor3)|0x03), hwif->dma_vendor3);
+ }
+
+ speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
+
+ if (!(speed)) {
+ hwif->tuneproc(drive, 5);
+ return 0;
+ }
+
+ (void) hwif->speedproc(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int pdcnew_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if (id && (id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ hwif->tuneproc(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+static int pdcnew_quirkproc (ide_drive_t *drive)
+{
+ return ((int) check_in_drive_lists(drive, pdc_quirk_drives));
+}
+
+static int pdcnew_ide_dma_lostirq(ide_drive_t *drive)
+{
+ if (HWIF(drive)->resetproc != NULL)
+ HWIF(drive)->resetproc(drive);
+ return __ide_dma_lostirq(drive);
+}
+
+static int pdcnew_ide_dma_timeout(ide_drive_t *drive)
+{
+ if (HWIF(drive)->resetproc != NULL)
+ HWIF(drive)->resetproc(drive);
+ return __ide_dma_timeout(drive);
+}
+
+static void pdcnew_new_reset (ide_drive_t *drive)
+{
+ /*
+ * Deleted this because it is redundant from the caller.
+ */
+ printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
+ HWIF(drive)->channel ? "Secondary" : "Primary");
+}
+
+#ifdef CONFIG_PPC_PMAC
+static void __devinit apple_kiwi_init(struct pci_dev *pdev)
+{
+ struct device_node *np = pci_device_to_OF_node(pdev);
+ unsigned int class_rev = 0;
+ void __iomem *mmio;
+ u8 conf;
+
+ if (np == NULL || !device_is_compatible(np, "kiwi-root"))
+ return;
+
+ pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+
+ if (class_rev >= 0x03) {
+ /* Setup chip magic config stuff (from darwin) */
+ pci_read_config_byte(pdev, 0x40, &conf);
+ pci_write_config_byte(pdev, 0x40, conf | 0x01);
+ }
+ mmio = ioremap(pci_resource_start(pdev, 5),
+ pci_resource_len(pdev, 5));
+
+ /* Setup some PLL stuffs */
+ switch (pdev->device) {
+ case PCI_DEVICE_ID_PROMISE_20270:
+ writew(0x0d2b, mmio + 0x1202);
+ mdelay(30);
+ break;
+ case PCI_DEVICE_ID_PROMISE_20271:
+ writew(0x0826, mmio + 0x1202);
+ mdelay(30);
+ break;
+ }
+
+ iounmap(mmio);
+}
+#endif /* CONFIG_PPC_PMAC */
+
+static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name)
+{
+ if (dev->resource[PCI_ROM_RESOURCE].start) {
+ pci_write_config_dword(dev, PCI_ROM_ADDRESS,
+ dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+ printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n",
+ name, dev->resource[PCI_ROM_RESOURCE].start);
+ }
+
+#ifdef CONFIG_PPC_PMAC
+ apple_kiwi_init(dev);
+#endif
+
+ return dev->irq;
+}
+
+static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
+{
+ hwif->autodma = 0;
+
+ hwif->tuneproc = &pdcnew_tune_drive;
+ hwif->quirkproc = &pdcnew_quirkproc;
+ hwif->speedproc = &pdcnew_new_tune_chipset;
+ hwif->resetproc = &pdcnew_new_reset;
+
+ hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
+
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+
+ hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
+ hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
+ hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
+ if (!(hwif->udma_four))
+ hwif->udma_four = (pdcnew_new_cable_detect(hwif)) ? 0 : 1;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
+#if PDC202_DEBUG_CABLE
+ printk(KERN_DEBUG "%s: %s-pin cable\n",
+ hwif->name, hwif->udma_four ? "80" : "40");
+#endif /* PDC202_DEBUG_CABLE */
+}
+
+static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_pdc20270(struct pci_dev *dev,
+ ide_pci_device_t *d)
+{
+ struct pci_dev *findev = NULL;
+
+ if ((dev->bus->self &&
+ dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
+ (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
+ if (PCI_SLOT(dev->devfn) & 2)
+ return -ENODEV;
+ d->extra = 0;
+ while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
+ if ((findev->vendor == dev->vendor) &&
+ (findev->device == dev->device) &&
+ (PCI_SLOT(findev->devfn) & 2)) {
+ if (findev->irq != dev->irq) {
+ findev->irq = dev->irq;
+ }
+ return ide_setup_pci_devices(dev, findev, d);
+ }
+ }
+ }
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_pdc20276(struct pci_dev *dev,
+ ide_pci_device_t *d)
+{
+ if ((dev->bus->self) &&
+ (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
+ ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
+ (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
+ printk(KERN_INFO "ide: Skipping Promise PDC20276 "
+ "attached to I2O RAID controller.\n");
+ return -ENODEV;
+ }
+ return ide_setup_pci_device(dev, d);
+}
+
+static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "PDC20268",
+ .init_setup = init_setup_pdcnew,
+ .init_chipset = init_chipset_pdcnew,
+ .init_hwif = init_hwif_pdc202new,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 1 */
+ .name = "PDC20269",
+ .init_setup = init_setup_pdcnew,
+ .init_chipset = init_chipset_pdcnew,
+ .init_hwif = init_hwif_pdc202new,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 2 */
+ .name = "PDC20270",
+ .init_setup = init_setup_pdc20270,
+ .init_chipset = init_chipset_pdcnew,
+ .init_hwif = init_hwif_pdc202new,
+ .channels = 2,
+ .autodma = AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+ .bootable = OFF_BOARD,
+ },{ /* 3 */
+ .name = "PDC20271",
+ .init_setup = init_setup_pdcnew,
+ .init_chipset = init_chipset_pdcnew,
+ .init_hwif = init_hwif_pdc202new,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 4 */
+ .name = "PDC20275",
+ .init_setup = init_setup_pdcnew,
+ .init_chipset = init_chipset_pdcnew,
+ .init_hwif = init_hwif_pdc202new,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 5 */
+ .name = "PDC20276",
+ .init_setup = init_setup_pdc20276,
+ .init_chipset = init_chipset_pdcnew,
+ .init_hwif = init_hwif_pdc202new,
+ .channels = 2,
+ .autodma = AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+ .bootable = OFF_BOARD,
+ },{ /* 6 */
+ .name = "PDC20277",
+ .init_setup = init_setup_pdcnew,
+ .init_chipset = init_chipset_pdcnew,
+ .init_hwif = init_hwif_pdc202new,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ }
+};
+
+/**
+ * pdc202new_init_one - called when a pdc202xx is found
+ * @dev: the pdc202new device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];
+
+ return d->init_setup(dev, d);
+}
+
+static struct pci_device_id pdc202new_pci_tbl[] = {
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "Promise_IDE",
+ .id_table = pdc202new_pci_tbl,
+ .probe = pdc202new_init_one,
+};
+
+static int pdc202new_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(pdc202new_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
+MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
new file mode 100644
index 0000000..ad9d9581
--- /dev/null
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -0,0 +1,892 @@
+/*
+ * linux/drivers/ide/pci/pdc202xx_old.c Version 0.36 Sept 11, 2002
+ *
+ * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
+ *
+ * Promise Ultra33 cards with BIOS v1.20 through 1.28 will need this
+ * compiled into the kernel if you have more than one card installed.
+ * Note that BIOS v1.29 is reported to fix the problem. Since this is
+ * safe chipset tuning, including this support is harmless
+ *
+ * Promise Ultra66 cards with BIOS v1.11 this
+ * compiled into the kernel if you have more than one card installed.
+ *
+ * Promise Ultra100 cards.
+ *
+ * The latest chipset code will support the following ::
+ * Three Ultra33 controllers and 12 drives.
+ * 8 are UDMA supported and 4 are limited to DMA mode 2 multi-word.
+ * The 8/4 ratio is a BIOS code limit by promise.
+ *
+ * UNLESS you enable "CONFIG_PDC202XX_BURST"
+ *
+ */
+
+/*
+ * Portions Copyright (C) 1999 Promise Technology, Inc.
+ * Author: Frank Tiernan (frankt@promise.com)
+ * Released under terms of General Public License
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#define PDC202_DEBUG_CABLE 0
+#define PDC202XX_DEBUG_DRIVE_INFO 0
+
+static const char *pdc_quirk_drives[] = {
+ "QUANTUM FIREBALLlct08 08",
+ "QUANTUM FIREBALLP KA6.4",
+ "QUANTUM FIREBALLP KA9.1",
+ "QUANTUM FIREBALLP LM20.4",
+ "QUANTUM FIREBALLP KX13.6",
+ "QUANTUM FIREBALLP KX20.5",
+ "QUANTUM FIREBALLP KX27.3",
+ "QUANTUM FIREBALLP LM20.5",
+ NULL
+};
+
+/* A Register */
+#define SYNC_ERRDY_EN 0xC0
+
+#define SYNC_IN 0x80 /* control bit, different for master vs. slave drives */
+#define ERRDY_EN 0x40 /* control bit, different for master vs. slave drives */
+#define IORDY_EN 0x20 /* PIO: IOREADY */
+#define PREFETCH_EN 0x10 /* PIO: PREFETCH */
+
+#define PA3 0x08 /* PIO"A" timing */
+#define PA2 0x04 /* PIO"A" timing */
+#define PA1 0x02 /* PIO"A" timing */
+#define PA0 0x01 /* PIO"A" timing */
+
+/* B Register */
+
+#define MB2 0x80 /* DMA"B" timing */
+#define MB1 0x40 /* DMA"B" timing */
+#define MB0 0x20 /* DMA"B" timing */
+
+#define PB4 0x10 /* PIO_FORCE 1:0 */
+
+#define PB3 0x08 /* PIO"B" timing */ /* PIO flow Control mode */
+#define PB2 0x04 /* PIO"B" timing */ /* PIO 4 */
+#define PB1 0x02 /* PIO"B" timing */ /* PIO 3 half */
+#define PB0 0x01 /* PIO"B" timing */ /* PIO 3 other half */
+
+/* C Register */
+#define IORDYp_NO_SPEED 0x4F
+#define SPEED_DIS 0x0F
+
+#define DMARQp 0x80
+#define IORDYp 0x40
+#define DMAR_EN 0x20
+#define DMAW_EN 0x10
+
+#define MC3 0x08 /* DMA"C" timing */
+#define MC2 0x04 /* DMA"C" timing */
+#define MC1 0x02 /* DMA"C" timing */
+#define MC0 0x01 /* DMA"C" timing */
+
+#if 0
+ unsigned long bibma = pci_resource_start(dev, 4);
+ u8 hi = 0, lo = 0;
+
+ u8 sc1c = inb_p((u16)bibma + 0x1c);
+ u8 sc1e = inb_p((u16)bibma + 0x1e);
+ u8 sc1f = inb_p((u16)bibma + 0x1f);
+
+ p += sprintf(p, "Host Mode : %s\n",
+ (sc1f & 0x08) ? "Tri-Stated" : "Normal");
+ p += sprintf(p, "Bus Clocking : %s\n",
+ ((sc1f & 0xC0) == 0xC0) ? "100 External" :
+ ((sc1f & 0x80) == 0x80) ? "66 External" :
+ ((sc1f & 0x40) == 0x40) ? "33 External" : "33 PCI Internal");
+ p += sprintf(p, "IO pad select : %s mA\n",
+ ((sc1c & 0x03) == 0x03) ? "10" :
+ ((sc1c & 0x02) == 0x02) ? "8" :
+ ((sc1c & 0x01) == 0x01) ? "6" :
+ ((sc1c & 0x00) == 0x00) ? "4" : "??");
+ hi = sc1e >> 4;
+ lo = sc1e & 0xf;
+ p += sprintf(p, "Status Polling Period : %d\n", hi);
+ p += sprintf(p, "Interrupt Check Status Polling Delay : %d\n", lo);
+#endif
+
+static u8 pdc202xx_ratemask (ide_drive_t *drive)
+{
+ u8 mode;
+
+ switch(HWIF(drive)->pci_dev->device) {
+ case PCI_DEVICE_ID_PROMISE_20267:
+ case PCI_DEVICE_ID_PROMISE_20265:
+ mode = 3;
+ break;
+ case PCI_DEVICE_ID_PROMISE_20263:
+ case PCI_DEVICE_ID_PROMISE_20262:
+ mode = 2;
+ break;
+ case PCI_DEVICE_ID_PROMISE_20246:
+ return 1;
+ default:
+ return 0;
+ }
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+static int check_in_drive_lists (ide_drive_t *drive, const char **list)
+{
+ struct hd_driveid *id = drive->id;
+
+ if (pdc_quirk_drives == list) {
+ while (*list) {
+ if (strstr(id->model, *list++)) {
+ return 2;
+ }
+ }
+ } else {
+ while (*list) {
+ if (!strcmp(*list++,id->model)) {
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+static int pdc202xx_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 drive_pci = 0x60 + (drive->dn << 2);
+ u8 speed = ide_rate_filter(pdc202xx_ratemask(drive), xferspeed);
+
+ u32 drive_conf;
+ u8 AP, BP, CP, DP;
+ u8 TA = 0, TB = 0, TC = 0;
+
+ if ((drive->media != ide_disk) && (speed < XFER_SW_DMA_0))
+ return -1;
+
+ pci_read_config_dword(dev, drive_pci, &drive_conf);
+ pci_read_config_byte(dev, (drive_pci), &AP);
+ pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
+ pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
+ pci_read_config_byte(dev, (drive_pci)|0x03, &DP);
+
+ if (speed < XFER_SW_DMA_0) {
+ if ((AP & 0x0F) || (BP & 0x07)) {
+ /* clear PIO modes of lower 8421 bits of A Register */
+ pci_write_config_byte(dev, (drive_pci), AP &~0x0F);
+ pci_read_config_byte(dev, (drive_pci), &AP);
+
+ /* clear PIO modes of lower 421 bits of B Register */
+ pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0x07);
+ pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
+
+ pci_read_config_byte(dev, (drive_pci), &AP);
+ pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
+ }
+ } else {
+ if ((BP & 0xF0) && (CP & 0x0F)) {
+ /* clear DMA modes of upper 842 bits of B Register */
+ /* clear PIO forced mode upper 1 bit of B Register */
+ pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0xF0);
+ pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
+
+ /* clear DMA modes of lower 8421 bits of C Register */
+ pci_write_config_byte(dev, (drive_pci)|0x02, CP &~0x0F);
+ pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
+ }
+ }
+
+ pci_read_config_byte(dev, (drive_pci), &AP);
+ pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
+ pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
+
+ switch(speed) {
+ case XFER_UDMA_6: speed = XFER_UDMA_5;
+ case XFER_UDMA_5:
+ case XFER_UDMA_4: TB = 0x20; TC = 0x01; break;
+ case XFER_UDMA_2: TB = 0x20; TC = 0x01; break;
+ case XFER_UDMA_3:
+ case XFER_UDMA_1: TB = 0x40; TC = 0x02; break;
+ case XFER_UDMA_0:
+ case XFER_MW_DMA_2: TB = 0x60; TC = 0x03; break;
+ case XFER_MW_DMA_1: TB = 0x60; TC = 0x04; break;
+ case XFER_MW_DMA_0:
+ case XFER_SW_DMA_2: TB = 0x60; TC = 0x05; break;
+ case XFER_SW_DMA_1: TB = 0x80; TC = 0x06; break;
+ case XFER_SW_DMA_0: TB = 0xC0; TC = 0x0B; break;
+ case XFER_PIO_4: TA = 0x01; TB = 0x04; break;
+ case XFER_PIO_3: TA = 0x02; TB = 0x06; break;
+ case XFER_PIO_2: TA = 0x03; TB = 0x08; break;
+ case XFER_PIO_1: TA = 0x05; TB = 0x0C; break;
+ case XFER_PIO_0:
+ default: TA = 0x09; TB = 0x13; break;
+ }
+
+ if (speed < XFER_SW_DMA_0) {
+ pci_write_config_byte(dev, (drive_pci), AP|TA);
+ pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
+ } else {
+ pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
+ pci_write_config_byte(dev, (drive_pci)|0x02, CP|TC);
+ }
+
+#if PDC202XX_DEBUG_DRIVE_INFO
+ printk(KERN_DEBUG "%s: %s drive%d 0x%08x ",
+ drive->name, ide_xfer_verbose(speed),
+ drive->dn, drive_conf);
+ pci_read_config_dword(dev, drive_pci, &drive_conf);
+ printk("0x%08x\n", drive_conf);
+#endif /* PDC202XX_DEBUG_DRIVE_INFO */
+
+ return (ide_config_drive_speed(drive, speed));
+}
+
+
+/* 0 1 2 3 4 5 6 7 8
+ * 960, 480, 390, 300, 240, 180, 120, 90, 60
+ * 180, 150, 120, 90, 60
+ * DMA_Speed
+ * 180, 120, 90, 90, 90, 60, 30
+ * 11, 5, 4, 3, 2, 1, 0
+ */
+static void config_chipset_for_pio (ide_drive_t *drive, u8 pio)
+{
+ u8 speed = 0;
+
+ if (pio == 5) pio = 4;
+ speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);
+
+ pdc202xx_tune_chipset(drive, speed);
+}
+
+static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
+{
+ u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);
+ pci_read_config_word(hwif->pci_dev, 0x50, &CIS);
+ return (CIS & mask) ? 1 : 0;
+}
+
+/*
+ * Set the control register to use the 66MHz system
+ * clock for UDMA 3/4/5 mode operation when necessary.
+ *
+ * It may also be possible to leave the 66MHz clock on
+ * and readjust the timing parameters.
+ */
+static void pdc_old_enable_66MHz_clock(ide_hwif_t *hwif)
+{
+ unsigned long clock_reg = hwif->dma_master + 0x11;
+ u8 clock = hwif->INB(clock_reg);
+
+ hwif->OUTB(clock | (hwif->channel ? 0x08 : 0x02), clock_reg);
+}
+
+static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif)
+{
+ unsigned long clock_reg = hwif->dma_master + 0x11;
+ u8 clock = hwif->INB(clock_reg);
+
+ hwif->OUTB(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg);
+}
+
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ struct hd_driveid *id = drive->id;
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u32 drive_conf = 0;
+ u8 drive_pci = 0x60 + (drive->dn << 2);
+ u8 test1 = 0, test2 = 0, speed = -1;
+ u8 AP = 0, cable = 0;
+
+ u8 ultra_66 = ((id->dma_ultra & 0x0010) ||
+ (id->dma_ultra & 0x0008)) ? 1 : 0;
+
+ if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
+ cable = pdc202xx_old_cable_detect(hwif);
+ else
+ ultra_66 = 0;
+
+ if (ultra_66 && cable) {
+ printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary");
+ printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
+ }
+
+ if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
+ pdc_old_disable_66MHz_clock(drive->hwif);
+
+ drive_pci = 0x60 + (drive->dn << 2);
+ pci_read_config_dword(dev, drive_pci, &drive_conf);
+ if ((drive_conf != 0x004ff304) && (drive_conf != 0x004ff3c4))
+ goto chipset_is_set;
+
+ pci_read_config_byte(dev, drive_pci, &test1);
+ if (!(test1 & SYNC_ERRDY_EN)) {
+ if (drive->select.b.unit & 0x01) {
+ pci_read_config_byte(dev, drive_pci - 4, &test2);
+ if ((test2 & SYNC_ERRDY_EN) &&
+ !(test1 & SYNC_ERRDY_EN)) {
+ pci_write_config_byte(dev, drive_pci,
+ test1|SYNC_ERRDY_EN);
+ }
+ } else {
+ pci_write_config_byte(dev, drive_pci,
+ test1|SYNC_ERRDY_EN);
+ }
+ }
+
+chipset_is_set:
+
+ if (drive->media == ide_disk) {
+ pci_read_config_byte(dev, (drive_pci), &AP);
+ if (id->capability & 4) /* IORDY_EN */
+ pci_write_config_byte(dev, (drive_pci), AP|IORDY_EN);
+ pci_read_config_byte(dev, (drive_pci), &AP);
+ if (drive->media == ide_disk) /* PREFETCH_EN */
+ pci_write_config_byte(dev, (drive_pci), AP|PREFETCH_EN);
+ }
+
+ speed = ide_dma_speed(drive, pdc202xx_ratemask(drive));
+
+ if (!(speed)) {
+ /* restore original pci-config space */
+ pci_write_config_dword(dev, drive_pci, drive_conf);
+ hwif->tuneproc(drive, 5);
+ return 0;
+ }
+
+ (void) hwif->speedproc(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if (id && (id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ hwif->tuneproc(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+static int pdc202xx_quirkproc (ide_drive_t *drive)
+{
+ return ((int) check_in_drive_lists(drive, pdc_quirk_drives));
+}
+
+static void pdc202xx_old_ide_dma_start(ide_drive_t *drive)
+{
+ if (drive->current_speed > XFER_UDMA_2)
+ pdc_old_enable_66MHz_clock(drive->hwif);
+ if (drive->addressing == 1) {
+ struct request *rq = HWGROUP(drive)->rq;
+ ide_hwif_t *hwif = HWIF(drive);
+// struct pci_dev *dev = hwif->pci_dev;
+// unsgned long high_16 = pci_resource_start(dev, 4);
+ unsigned long high_16 = hwif->dma_master;
+ unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
+ u32 word_count = 0;
+ u8 clock = hwif->INB(high_16 + 0x11);
+
+ hwif->OUTB(clock|(hwif->channel ? 0x08 : 0x02), high_16+0x11);
+ word_count = (rq->nr_sectors << 8);
+ word_count = (rq_data_dir(rq) == READ) ?
+ word_count | 0x05000000 :
+ word_count | 0x06000000;
+ hwif->OUTL(word_count, atapi_reg);
+ }
+ ide_dma_start(drive);
+}
+
+static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
+{
+ if (drive->addressing == 1) {
+ ide_hwif_t *hwif = HWIF(drive);
+// unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4);
+ unsigned long high_16 = hwif->dma_master;
+ unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
+ u8 clock = 0;
+
+ hwif->OUTL(0, atapi_reg); /* zero out extra */
+ clock = hwif->INB(high_16 + 0x11);
+ hwif->OUTB(clock & ~(hwif->channel ? 0x08:0x02), high_16+0x11);
+ }
+ if (drive->current_speed > XFER_UDMA_2)
+ pdc_old_disable_66MHz_clock(drive->hwif);
+ return __ide_dma_end(drive);
+}
+
+static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+// struct pci_dev *dev = hwif->pci_dev;
+// unsigned long high_16 = pci_resource_start(dev, 4);
+ unsigned long high_16 = hwif->dma_master;
+ u8 dma_stat = hwif->INB(hwif->dma_status);
+ u8 sc1d = hwif->INB((high_16 + 0x001d));
+
+ if (hwif->channel) {
+ /* bit7: Error, bit6: Interrupting, bit5: FIFO Full, bit4: FIFO Empty */
+ if ((sc1d & 0x50) == 0x50)
+ goto somebody_else;
+ else if ((sc1d & 0x40) == 0x40)
+ return (dma_stat & 4) == 4;
+ } else {
+ /* bit3: Error, bit2: Interrupting, bit1: FIFO Full, bit0: FIFO Empty */
+ if ((sc1d & 0x05) == 0x05)
+ goto somebody_else;
+ else if ((sc1d & 0x04) == 0x04)
+ return (dma_stat & 4) == 4;
+ }
+somebody_else:
+ return (dma_stat & 4) == 4; /* return 1 if INTR asserted */
+}
+
+static int pdc202xx_ide_dma_lostirq(ide_drive_t *drive)
+{
+ if (HWIF(drive)->resetproc != NULL)
+ HWIF(drive)->resetproc(drive);
+ return __ide_dma_lostirq(drive);
+}
+
+static int pdc202xx_ide_dma_timeout(ide_drive_t *drive)
+{
+ if (HWIF(drive)->resetproc != NULL)
+ HWIF(drive)->resetproc(drive);
+ return __ide_dma_timeout(drive);
+}
+
+static void pdc202xx_reset_host (ide_hwif_t *hwif)
+{
+#ifdef CONFIG_BLK_DEV_IDEDMA
+// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel));
+ unsigned long high_16 = hwif->dma_master;
+#else /* !CONFIG_BLK_DEV_IDEDMA */
+ unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4);
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+ u8 udma_speed_flag = hwif->INB(high_16|0x001f);
+
+ hwif->OUTB((udma_speed_flag | 0x10), (high_16|0x001f));
+ mdelay(100);
+ hwif->OUTB((udma_speed_flag & ~0x10), (high_16|0x001f));
+ mdelay(2000); /* 2 seconds ?! */
+
+ printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
+ hwif->channel ? "Secondary" : "Primary");
+}
+
+static void pdc202xx_reset (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *mate = hwif->mate;
+
+ pdc202xx_reset_host(hwif);
+ pdc202xx_reset_host(mate);
+#if 0
+ /*
+ * FIXME: Have to kick all the drives again :-/
+ * What a pain in the ACE!
+ */
+ if (hwif->present) {
+ u16 hunit = 0;
+ for (hunit = 0; hunit < MAX_DRIVES; ++hunit) {
+ ide_drive_t *hdrive = &hwif->drives[hunit];
+ if (hdrive->present) {
+ if (hwif->ide_dma_check)
+ hwif->ide_dma_check(hdrive);
+ else
+ hwif->tuneproc(hdrive, 5);
+ }
+ }
+ }
+ if (mate->present) {
+ u16 munit = 0;
+ for (munit = 0; munit < MAX_DRIVES; ++munit) {
+ ide_drive_t *mdrive = &mate->drives[munit];
+ if (mdrive->present) {
+ if (mate->ide_dma_check)
+ mate->ide_dma_check(mdrive);
+ else
+ mate->tuneproc(mdrive, 5);
+ }
+ }
+ }
+#else
+ hwif->tuneproc(drive, 5);
+#endif
+}
+
+/*
+ * Since SUN Cobalt is attempting to do this operation, I should disclose
+ * this has been a long time ago Thu Jul 27 16:40:57 2000 was the patch date
+ * HOTSWAP ATA Infrastructure.
+ */
+static int pdc202xx_tristate (ide_drive_t * drive, int state)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel));
+ unsigned long high_16 = hwif->dma_master;
+ u8 sc1f = hwif->INB(high_16|0x001f);
+
+ if (!hwif)
+ return -EINVAL;
+
+// hwif->bus_state = state;
+
+ if (state) {
+ hwif->OUTB(sc1f | 0x08, (high_16|0x001f));
+ } else {
+ hwif->OUTB(sc1f & ~0x08, (high_16|0x001f));
+ }
+ return 0;
+}
+
+static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev, const char *name)
+{
+ if (dev->resource[PCI_ROM_RESOURCE].start) {
+ pci_write_config_dword(dev, PCI_ROM_ADDRESS,
+ dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+ printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n",
+ name, dev->resource[PCI_ROM_RESOURCE].start);
+ }
+
+ /*
+ * software reset - this is required because the bios
+ * will set UDMA timing on if the hdd supports it. The
+ * user may want to turn udma off. A bug in the pdc20262
+ * is that it cannot handle a downgrade in timing from
+ * UDMA to DMA. Disk accesses after issuing a set
+ * feature command will result in errors. A software
+ * reset leaves the timing registers intact,
+ * but resets the drives.
+ */
+#if 0
+ if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
+ (dev->device == PCI_DEVICE_ID_PROMISE_20265) ||
+ (dev->device == PCI_DEVICE_ID_PROMISE_20263) ||
+ (dev->device == PCI_DEVICE_ID_PROMISE_20262)) {
+ unsigned long high_16 = pci_resource_start(dev, 4);
+ byte udma_speed_flag = inb(high_16 + 0x001f);
+ outb(udma_speed_flag | 0x10, high_16 + 0x001f);
+ mdelay(100);
+ outb(udma_speed_flag & ~0x10, high_16 + 0x001f);
+ mdelay(2000); /* 2 seconds ?! */
+ }
+
+#endif
+ return dev->irq;
+}
+
+static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+
+ /* PDC20265 has problems with large LBA48 requests */
+ if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
+ (dev->device == PCI_DEVICE_ID_PROMISE_20265))
+ hwif->rqsize = 256;
+
+ hwif->autodma = 0;
+ hwif->tuneproc = &config_chipset_for_pio;
+ hwif->quirkproc = &pdc202xx_quirkproc;
+
+ if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
+ hwif->busproc = &pdc202xx_tristate;
+ hwif->resetproc = &pdc202xx_reset;
+ }
+
+ hwif->speedproc = &pdc202xx_tune_chipset;
+
+ hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
+
+ hwif->ultra_mask = 0x3f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ hwif->ide_dma_check = &pdc202xx_config_drive_xfer_rate;
+ hwif->ide_dma_lostirq = &pdc202xx_ide_dma_lostirq;
+ hwif->ide_dma_timeout = &pdc202xx_ide_dma_timeout;
+
+ if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
+ if (!(hwif->udma_four))
+ hwif->udma_four = (pdc202xx_old_cable_detect(hwif)) ? 0 : 1;
+ hwif->dma_start = &pdc202xx_old_ide_dma_start;
+ hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
+ }
+ hwif->ide_dma_test_irq = &pdc202xx_old_ide_dma_test_irq;
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
+#if PDC202_DEBUG_CABLE
+ printk(KERN_DEBUG "%s: %s-pin cable\n",
+ hwif->name, hwif->udma_four ? "80" : "40");
+#endif /* PDC202_DEBUG_CABLE */
+}
+
+static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
+{
+ u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0;
+
+ if (hwif->channel) {
+ ide_setup_dma(hwif, dmabase, 8);
+ return;
+ }
+
+ udma_speed_flag = hwif->INB((dmabase|0x1f));
+ primary_mode = hwif->INB((dmabase|0x1a));
+ secondary_mode = hwif->INB((dmabase|0x1b));
+ printk(KERN_INFO "%s: (U)DMA Burst Bit %sABLED " \
+ "Primary %s Mode " \
+ "Secondary %s Mode.\n", hwif->cds->name,
+ (udma_speed_flag & 1) ? "EN" : "DIS",
+ (primary_mode & 1) ? "MASTER" : "PCI",
+ (secondary_mode & 1) ? "MASTER" : "PCI" );
+
+#ifdef CONFIG_PDC202XX_BURST
+ if (!(udma_speed_flag & 1)) {
+ printk(KERN_INFO "%s: FORCING BURST BIT 0x%02x->0x%02x ",
+ hwif->cds->name, udma_speed_flag,
+ (udma_speed_flag|1));
+ hwif->OUTB(udma_speed_flag|1,(dmabase|0x1f));
+ printk("%sACTIVE\n",
+ (hwif->INB(dmabase|0x1f)&1) ? "":"IN");
+ }
+#endif /* CONFIG_PDC202XX_BURST */
+#ifdef CONFIG_PDC202XX_MASTER
+ if (!(primary_mode & 1)) {
+ printk(KERN_INFO "%s: FORCING PRIMARY MODE BIT "
+ "0x%02x -> 0x%02x ", hwif->cds->name,
+ primary_mode, (primary_mode|1));
+ hwif->OUTB(primary_mode|1, (dmabase|0x1a));
+ printk("%s\n",
+ (hwif->INB((dmabase|0x1a)) & 1) ? "MASTER" : "PCI");
+ }
+
+ if (!(secondary_mode & 1)) {
+ printk(KERN_INFO "%s: FORCING SECONDARY MODE BIT "
+ "0x%02x -> 0x%02x ", hwif->cds->name,
+ secondary_mode, (secondary_mode|1));
+ hwif->OUTB(secondary_mode|1, (dmabase|0x1b));
+ printk("%s\n",
+ (hwif->INB((dmabase|0x1b)) & 1) ? "MASTER" : "PCI");
+ }
+#endif /* CONFIG_PDC202XX_MASTER */
+
+ ide_setup_dma(hwif, dmabase, 8);
+}
+
+static int __devinit init_setup_pdc202ata4(struct pci_dev *dev,
+ ide_pci_device_t *d)
+{
+ if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) {
+ u8 irq = 0, irq2 = 0;
+ pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
+ /* 0xbc */
+ pci_read_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, &irq2);
+ if (irq != irq2) {
+ pci_write_config_byte(dev,
+ (PCI_INTERRUPT_LINE)|0x80, irq); /* 0xbc */
+ printk(KERN_INFO "%s: pci-config space interrupt "
+ "mirror fixed.\n", d->name);
+ }
+ }
+
+#if 0
+ if (dev->device == PCI_DEVICE_ID_PROMISE_20262)
+ if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) ||
+ (tmp & e->mask) != e->val))
+
+ if (d->enablebits[0].reg != d->enablebits[1].reg) {
+ d->enablebits[0].reg = d->enablebits[1].reg;
+ d->enablebits[0].mask = d->enablebits[1].mask;
+ d->enablebits[0].val = d->enablebits[1].val;
+ }
+#endif
+
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_pdc20265(struct pci_dev *dev,
+ ide_pci_device_t *d)
+{
+ if ((dev->bus->self) &&
+ (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
+ ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
+ (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
+ printk(KERN_INFO "ide: Skipping Promise PDC20265 "
+ "attached to I2O RAID controller.\n");
+ return -ENODEV;
+ }
+
+#if 0
+ {
+ u8 pri = 0, sec = 0;
+
+ if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) ||
+ (tmp & e->mask) != e->val))
+
+ if (d->enablebits[0].reg != d->enablebits[1].reg) {
+ d->enablebits[0].reg = d->enablebits[1].reg;
+ d->enablebits[0].mask = d->enablebits[1].mask;
+ d->enablebits[0].val = d->enablebits[1].val;
+ }
+ }
+#endif
+
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_pdc202xx(struct pci_dev *dev,
+ ide_pci_device_t *d)
+{
+ return ide_setup_pci_device(dev, d);
+}
+
+static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "PDC20246",
+ .init_setup = init_setup_pdc202ata4,
+ .init_chipset = init_chipset_pdc202xx,
+ .init_hwif = init_hwif_pdc202xx,
+ .init_dma = init_dma_pdc202xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+ .bootable = OFF_BOARD,
+ .extra = 16,
+ },{ /* 1 */
+ .name = "PDC20262",
+ .init_setup = init_setup_pdc202ata4,
+ .init_chipset = init_chipset_pdc202xx,
+ .init_hwif = init_hwif_pdc202xx,
+ .init_dma = init_dma_pdc202xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+ .bootable = OFF_BOARD,
+ .extra = 48,
+ .flags = IDEPCI_FLAG_FORCE_PDC,
+ },{ /* 2 */
+ .name = "PDC20263",
+ .init_setup = init_setup_pdc202ata4,
+ .init_chipset = init_chipset_pdc202xx,
+ .init_hwif = init_hwif_pdc202xx,
+ .init_dma = init_dma_pdc202xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+ .bootable = OFF_BOARD,
+ .extra = 48,
+ },{ /* 3 */
+ .name = "PDC20265",
+ .init_setup = init_setup_pdc20265,
+ .init_chipset = init_chipset_pdc202xx,
+ .init_hwif = init_hwif_pdc202xx,
+ .init_dma = init_dma_pdc202xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+ .bootable = OFF_BOARD,
+ .extra = 48,
+ .flags = IDEPCI_FLAG_FORCE_PDC,
+ },{ /* 4 */
+ .name = "PDC20267",
+ .init_setup = init_setup_pdc202xx,
+ .init_chipset = init_chipset_pdc202xx,
+ .init_hwif = init_hwif_pdc202xx,
+ .init_dma = init_dma_pdc202xx,
+ .channels = 2,
+ .autodma = AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+ .enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+ .bootable = OFF_BOARD,
+ .extra = 48,
+ }
+};
+
+/**
+ * pdc202xx_init_one - called when a PDC202xx is found
+ * @dev: the pdc202xx device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &pdc202xx_chipsets[id->driver_data];
+
+ return d->init_setup(dev, d);
+}
+
+static struct pci_device_id pdc202xx_pci_tbl[] = {
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20246, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, pdc202xx_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "Promise_Old_IDE",
+ .id_table = pdc202xx_pci_tbl,
+ .probe = pdc202xx_init_one,
+};
+
+static int pdc202xx_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(pdc202xx_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
+MODULE_DESCRIPTION("PCI driver module for older Promise IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
new file mode 100644
index 0000000..b5a20ae
--- /dev/null
+++ b/drivers/ide/pci/piix.c
@@ -0,0 +1,670 @@
+/*
+ * linux/drivers/ide/pci/piix.c Version 0.44 March 20, 2003
+ *
+ * Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer
+ * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2003 Red Hat Inc <alan@redhat.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * PIO mode setting function for Intel chipsets.
+ * For use instead of BIOS settings.
+ *
+ * 40-41
+ * 42-43
+ *
+ * 41
+ * 43
+ *
+ * | PIO 0 | c0 | 80 | 0 | piix_tune_drive(drive, 0);
+ * | PIO 2 | SW2 | d0 | 90 | 4 | piix_tune_drive(drive, 2);
+ * | PIO 3 | MW1 | e1 | a1 | 9 | piix_tune_drive(drive, 3);
+ * | PIO 4 | MW2 | e3 | a3 | b | piix_tune_drive(drive, 4);
+ *
+ * sitre = word40 & 0x4000; primary
+ * sitre = word42 & 0x4000; secondary
+ *
+ * 44 8421|8421 hdd|hdb
+ *
+ * 48 8421 hdd|hdc|hdb|hda udma enabled
+ *
+ * 0001 hda
+ * 0010 hdb
+ * 0100 hdc
+ * 1000 hdd
+ *
+ * 4a 84|21 hdb|hda
+ * 4b 84|21 hdd|hdc
+ *
+ * ata-33/82371AB
+ * ata-33/82371EB
+ * ata-33/82801AB ata-66/82801AA
+ * 00|00 udma 0 00|00 reserved
+ * 01|01 udma 1 01|01 udma 3
+ * 10|10 udma 2 10|10 udma 4
+ * 11|11 reserved 11|11 reserved
+ *
+ * 54 8421|8421 ata66 drive|ata66 enable
+ *
+ * pci_read_config_word(HWIF(drive)->pci_dev, 0x40, ®40);
+ * pci_read_config_word(HWIF(drive)->pci_dev, 0x42, ®42);
+ * pci_read_config_word(HWIF(drive)->pci_dev, 0x44, ®44);
+ * pci_read_config_byte(HWIF(drive)->pci_dev, 0x48, ®48);
+ * pci_read_config_word(HWIF(drive)->pci_dev, 0x4a, ®4a);
+ * pci_read_config_byte(HWIF(drive)->pci_dev, 0x54, ®54);
+ *
+ * Documentation
+ * Publically available from Intel web site. Errata documentation
+ * is also publically available. As an aide to anyone hacking on this
+ * driver the list of errata that are relevant is below.going back to
+ * PIIX4. Older device documentation is now a bit tricky to find.
+ *
+ * Errata of note:
+ *
+ * Unfixable
+ * PIIX4 errata #9 - Only on ultra obscure hw
+ * ICH3 errata #13 - Not observed to affect real hw
+ * by Intel
+ *
+ * Things we must deal with
+ * PIIX4 errata #10 - BM IDE hang with non UDMA
+ * (must stop/start dma to recover)
+ * 440MX errata #15 - As PIIX4 errata #10
+ * PIIX4 errata #15 - Must not read control registers
+ * during a PIO transfer
+ * 440MX errata #13 - As PIIX4 errata #15
+ * ICH2 errata #21 - DMA mode 0 doesn't work right
+ * ICH0/1 errata #55 - As ICH2 errata #21
+ * ICH2 spec c #9 - Extra operations needed to handle
+ * drive hotswap [NOT YET SUPPORTED]
+ * ICH2 spec c #20 - IDE PRD must not cross a 64K boundary
+ * and must be dword aligned
+ * ICH2 spec c #24 - UDMA mode 4,5 t85/86 should be 6ns not 3.3
+ *
+ * Should have been BIOS fixed:
+ * 450NX: errata #19 - DMA hangs on old 450NX
+ * 450NX: errata #20 - DMA hangs on old 450NX
+ * 450NX: errata #25 - Corruption with DMA on old 450NX
+ * ICH3 errata #15 - IDE deadlock under high load
+ * (BIOS must set dev 31 fn 0 bit 23)
+ * ICH3 errata #18 - Don't use native mode
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+static int no_piix_dma;
+
+/**
+ * piix_ratemask - compute rate mask for PIIX IDE
+ * @drive: IDE drive to compute for
+ *
+ * Returns the available modes for the PIIX IDE controller.
+ */
+
+static u8 piix_ratemask (ide_drive_t *drive)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 mode;
+
+ switch(dev->device) {
+ case PCI_DEVICE_ID_INTEL_82801EB_1:
+ mode = 3;
+ break;
+ /* UDMA 100 capable */
+ case PCI_DEVICE_ID_INTEL_82801BA_8:
+ case PCI_DEVICE_ID_INTEL_82801BA_9:
+ case PCI_DEVICE_ID_INTEL_82801CA_10:
+ case PCI_DEVICE_ID_INTEL_82801CA_11:
+ case PCI_DEVICE_ID_INTEL_82801E_11:
+ case PCI_DEVICE_ID_INTEL_82801DB_1:
+ case PCI_DEVICE_ID_INTEL_82801DB_10:
+ case PCI_DEVICE_ID_INTEL_82801DB_11:
+ case PCI_DEVICE_ID_INTEL_82801EB_11:
+ case PCI_DEVICE_ID_INTEL_ESB_2:
+ case PCI_DEVICE_ID_INTEL_ICH6_19:
+ case PCI_DEVICE_ID_INTEL_ICH7_21:
+ mode = 3;
+ break;
+ /* UDMA 66 capable */
+ case PCI_DEVICE_ID_INTEL_82801AA_1:
+ case PCI_DEVICE_ID_INTEL_82372FB_1:
+ mode = 2;
+ break;
+ /* UDMA 33 capable */
+ case PCI_DEVICE_ID_INTEL_82371AB:
+ case PCI_DEVICE_ID_INTEL_82443MX_1:
+ case PCI_DEVICE_ID_INTEL_82451NX:
+ case PCI_DEVICE_ID_INTEL_82801AB_1:
+ return 1;
+ /* Non UDMA capable (MWDMA2) */
+ case PCI_DEVICE_ID_INTEL_82371SB_1:
+ case PCI_DEVICE_ID_INTEL_82371FB_1:
+ case PCI_DEVICE_ID_INTEL_82371FB_0:
+ case PCI_DEVICE_ID_INTEL_82371MX:
+ default:
+ return 0;
+ }
+
+ /*
+ * If we are UDMA66 capable fall back to UDMA33
+ * if the drive cannot see an 80pin cable.
+ */
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+/**
+ * piix_dma_2_pio - return the PIO mode matching DMA
+ * @xfer_rate: transfer speed
+ *
+ * Returns the nearest equivalent PIO timing for the PIO or DMA
+ * mode requested by the controller.
+ */
+
+static u8 piix_dma_2_pio (u8 xfer_rate) {
+ switch(xfer_rate) {
+ case XFER_UDMA_6:
+ case XFER_UDMA_5:
+ case XFER_UDMA_4:
+ case XFER_UDMA_3:
+ case XFER_UDMA_2:
+ case XFER_UDMA_1:
+ case XFER_UDMA_0:
+ case XFER_MW_DMA_2:
+ case XFER_PIO_4:
+ return 4;
+ case XFER_MW_DMA_1:
+ case XFER_PIO_3:
+ return 3;
+ case XFER_SW_DMA_2:
+ case XFER_PIO_2:
+ return 2;
+ case XFER_MW_DMA_0:
+ case XFER_SW_DMA_1:
+ case XFER_SW_DMA_0:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ case XFER_PIO_SLOW:
+ default:
+ return 0;
+ }
+}
+
+/**
+ * piix_tune_drive - tune a drive attached to a PIIX
+ * @drive: drive to tune
+ * @pio: desired PIO mode
+ *
+ * Set the interface PIO mode based upon the settings done by AMI BIOS
+ * (might be useful if drive is not registered in CMOS for any reason).
+ */
+static void piix_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ int is_slave = (&hwif->drives[1] == drive);
+ int master_port = hwif->channel ? 0x42 : 0x40;
+ int slave_port = 0x44;
+ unsigned long flags;
+ u16 master_data;
+ u8 slave_data;
+ /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
+ spin_lock_irqsave(&ide_lock, flags);
+ pci_read_config_word(dev, master_port, &master_data);
+ if (is_slave) {
+ master_data = master_data | 0x4000;
+ if (pio > 1)
+ /* enable PPE, IE and TIME */
+ master_data = master_data | 0x0070;
+ pci_read_config_byte(dev, slave_port, &slave_data);
+ slave_data = slave_data & (hwif->channel ? 0x0f : 0xf0);
+ slave_data = slave_data | (((timings[pio][0] << 2) | timings[pio][1]) << (hwif->channel ? 4 : 0));
+ } else {
+ master_data = master_data & 0xccf8;
+ if (pio > 1)
+ /* enable PPE, IE and TIME */
+ master_data = master_data | 0x0007;
+ master_data = master_data | (timings[pio][0] << 12) | (timings[pio][1] << 8);
+ }
+ pci_write_config_word(dev, master_port, master_data);
+ if (is_slave)
+ pci_write_config_byte(dev, slave_port, slave_data);
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+/**
+ * piix_tune_chipset - tune a PIIX interface
+ * @drive: IDE drive to tune
+ * @xferspeed: speed to configure
+ *
+ * Set a PIIX interface channel to the desired speeds. This involves
+ * requires the right timing data into the PIIX configuration space
+ * then setting the drive parameters appropriately
+ */
+
+static int piix_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 maslave = hwif->channel ? 0x42 : 0x40;
+ u8 speed = ide_rate_filter(piix_ratemask(drive), xferspeed);
+ 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;
+
+ pci_read_config_word(dev, maslave, ®4042);
+ 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_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:
+ case XFER_SW_DMA_2: break;
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_0: break;
+ default: return -1;
+ }
+
+ 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);
+ }
+ 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);
+ }
+
+ piix_tune_drive(drive, piix_dma_2_pio(speed));
+ return (ide_config_drive_speed(drive, speed));
+}
+
+/**
+ * piix_faulty_dma0 - check for DMA0 errata
+ * @hwif: IDE interface to check
+ *
+ * If an ICH/ICH0/ICH2 interface is is operating in multi-word
+ * DMA mode with 600nS cycle time the IDE PIO prefetch buffer will
+ * inadvertently provide an extra piece of secondary data to the primary
+ * device resulting in data corruption.
+ *
+ * With such a device this test function returns true. This allows
+ * our tuning code to follow Intel recommendations and use PIO on
+ * such devices.
+ */
+
+static int piix_faulty_dma0(ide_hwif_t *hwif)
+{
+ switch(hwif->pci_dev->device)
+ {
+ case PCI_DEVICE_ID_INTEL_82801AA_1: /* ICH */
+ case PCI_DEVICE_ID_INTEL_82801AB_1: /* ICH0 */
+ case PCI_DEVICE_ID_INTEL_82801BA_8: /* ICH2 */
+ case PCI_DEVICE_ID_INTEL_82801BA_9: /* ICH2 */
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * piix_config_drive_for_dma - configure drive for DMA
+ * @drive: IDE drive to configure
+ *
+ * Set up a PIIX interface channel for the best available speed.
+ * We prefer UDMA if it is available and then MWDMA. If DMA is
+ * not available we switch to PIO and return 0.
+ */
+
+static int piix_config_drive_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, piix_ratemask(drive));
+
+ /* Some ICH devices cannot support DMA mode 0 */
+ if(speed == XFER_MW_DMA_0 && piix_faulty_dma0(HWIF(drive)))
+ speed = 0;
+
+ /* If no DMA speed was available or the chipset has DMA bugs
+ then disable DMA and use PIO */
+
+ if (!speed || no_piix_dma) {
+ u8 tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL);
+ speed = piix_dma_2_pio(XFER_PIO_0 + tspeed);
+ }
+
+ (void) piix_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+/**
+ * piix_config_drive_xfer_rate - set up an IDE device
+ * @drive: IDE drive to configure
+ *
+ * Set up the PIIX interface for the best available speed on this
+ * interface, preferring DMA to PIO.
+ */
+
+static int piix_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if ((id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (piix_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ /* Find best PIO mode. */
+ hwif->tuneproc(drive, 255);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+/**
+ * init_chipset_piix - set up the PIIX chipset
+ * @dev: PCI device to set up
+ * @name: Name of the device
+ *
+ * Initialize the PCI device as required. For the PIIX this turns
+ * out to be nice and simple
+ */
+
+static unsigned int __devinit init_chipset_piix (struct pci_dev *dev, const char *name)
+{
+ switch(dev->device) {
+ case PCI_DEVICE_ID_INTEL_82801EB_1:
+ case PCI_DEVICE_ID_INTEL_82801AA_1:
+ case PCI_DEVICE_ID_INTEL_82801AB_1:
+ case PCI_DEVICE_ID_INTEL_82801BA_8:
+ case PCI_DEVICE_ID_INTEL_82801BA_9:
+ case PCI_DEVICE_ID_INTEL_82801CA_10:
+ case PCI_DEVICE_ID_INTEL_82801CA_11:
+ case PCI_DEVICE_ID_INTEL_82801DB_1:
+ case PCI_DEVICE_ID_INTEL_82801DB_10:
+ case PCI_DEVICE_ID_INTEL_82801DB_11:
+ case PCI_DEVICE_ID_INTEL_82801EB_11:
+ case PCI_DEVICE_ID_INTEL_82801E_11:
+ case PCI_DEVICE_ID_INTEL_ESB_2:
+ case PCI_DEVICE_ID_INTEL_ICH6_19:
+ case PCI_DEVICE_ID_INTEL_ICH7_21:
+ {
+ unsigned int extra = 0;
+ pci_read_config_dword(dev, 0x54, &extra);
+ pci_write_config_dword(dev, 0x54, extra|0x400);
+ }
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * init_hwif_piix - fill in the hwif for the PIIX
+ * @hwif: IDE interface
+ *
+ * Set up the ide_hwif_t for the PIIX interface according to the
+ * capabilities of the hardware.
+ */
+
+static void __devinit init_hwif_piix(ide_hwif_t *hwif)
+{
+ u8 reg54h = 0, reg55h = 0, ata66 = 0;
+ u8 mask = hwif->channel ? 0xc0 : 0x30;
+
+#ifndef CONFIG_IA64
+ if (!hwif->irq)
+ hwif->irq = hwif->channel ? 15 : 14;
+#endif /* CONFIG_IA64 */
+
+ if (hwif->pci_dev->device == PCI_DEVICE_ID_INTEL_82371MX) {
+ /* This is a painful system best to let it self tune for now */
+ return;
+ }
+
+ hwif->autodma = 0;
+ hwif->tuneproc = &piix_tune_drive;
+ hwif->speedproc = &piix_tune_chipset;
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+
+ if (!hwif->dma_base)
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x3f;
+ hwif->mwdma_mask = 0x06;
+ hwif->swdma_mask = 0x04;
+
+ switch(hwif->pci_dev->device) {
+ case PCI_DEVICE_ID_INTEL_82371MX:
+ hwif->mwdma_mask = 0x80;
+ hwif->swdma_mask = 0x80;
+ case PCI_DEVICE_ID_INTEL_82371FB_0:
+ case PCI_DEVICE_ID_INTEL_82371FB_1:
+ case PCI_DEVICE_ID_INTEL_82371SB_1:
+ hwif->ultra_mask = 0x80;
+ break;
+ case PCI_DEVICE_ID_INTEL_82371AB:
+ case PCI_DEVICE_ID_INTEL_82443MX_1:
+ case PCI_DEVICE_ID_INTEL_82451NX:
+ case PCI_DEVICE_ID_INTEL_82801AB_1:
+ hwif->ultra_mask = 0x07;
+ break;
+ default:
+ pci_read_config_byte(hwif->pci_dev, 0x54, ®54h);
+ pci_read_config_byte(hwif->pci_dev, 0x55, ®55h);
+ ata66 = (reg54h & mask) ? 1 : 0;
+ break;
+ }
+
+ if (!(hwif->udma_four))
+ hwif->udma_four = ata66;
+ hwif->ide_dma_check = &piix_config_drive_xfer_rate;
+ if (!noautodma)
+ hwif->autodma = 1;
+
+ hwif->drives[1].autodma = hwif->autodma;
+ hwif->drives[0].autodma = hwif->autodma;
+}
+
+#define DECLARE_PIIX_DEV(name_str) \
+ { \
+ .name = name_str, \
+ .init_chipset = init_chipset_piix, \
+ .init_hwif = init_hwif_piix, \
+ .channels = 2, \
+ .autodma = AUTODMA, \
+ .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
+ .bootable = ON_BOARD, \
+ }
+
+static ide_pci_device_t piix_pci_info[] __devinitdata = {
+ /* 0 */ DECLARE_PIIX_DEV("PIIXa"),
+ /* 1 */ DECLARE_PIIX_DEV("PIIXb"),
+
+ { /* 2 */
+ .name = "MPIIX",
+ .init_hwif = init_hwif_piix,
+ .channels = 2,
+ .autodma = NODMA,
+ .enablebits = {{0x6D,0x80,0x80}, {0x6F,0x80,0x80}},
+ .bootable = ON_BOARD,
+ },
+
+ /* 3 */ DECLARE_PIIX_DEV("PIIX3"),
+ /* 4 */ DECLARE_PIIX_DEV("PIIX4"),
+ /* 5 */ DECLARE_PIIX_DEV("ICH0"),
+ /* 6 */ DECLARE_PIIX_DEV("PIIX4"),
+ /* 7 */ DECLARE_PIIX_DEV("ICH"),
+ /* 8 */ DECLARE_PIIX_DEV("PIIX4"),
+ /* 9 */ DECLARE_PIIX_DEV("PIIX4"),
+ /* 10 */ DECLARE_PIIX_DEV("ICH2"),
+ /* 11 */ DECLARE_PIIX_DEV("ICH2M"),
+ /* 12 */ DECLARE_PIIX_DEV("ICH3M"),
+ /* 13 */ DECLARE_PIIX_DEV("ICH3"),
+ /* 14 */ DECLARE_PIIX_DEV("ICH4"),
+ /* 15 */ DECLARE_PIIX_DEV("ICH5"),
+ /* 16 */ DECLARE_PIIX_DEV("C-ICH"),
+ /* 17 */ DECLARE_PIIX_DEV("ICH4"),
+ /* 18 */ DECLARE_PIIX_DEV("ICH5-SATA"),
+ /* 19 */ DECLARE_PIIX_DEV("ICH5"),
+ /* 20 */ DECLARE_PIIX_DEV("ICH6"),
+ /* 21 */ DECLARE_PIIX_DEV("ICH7"),
+ /* 22 */ DECLARE_PIIX_DEV("ICH4"),
+};
+
+/**
+ * piix_init_one - called when a PIIX is found
+ * @dev: the piix device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit piix_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &piix_pci_info[id->driver_data];
+
+ return ide_setup_pci_device(dev, d);
+}
+
+/**
+ * piix_check_450nx - Check for problem 450NX setup
+ *
+ * Check for the present of 450NX errata #19 and errata #25. If
+ * they are found, disable use of DMA IDE
+ */
+
+static void __devinit piix_check_450nx(void)
+{
+ struct pci_dev *pdev = NULL;
+ u16 cfg;
+ u8 rev;
+ while((pdev=pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, pdev))!=NULL)
+ {
+ /* Look for 450NX PXB. Check for problem configurations
+ A PCI quirk checks bit 6 already */
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
+ pci_read_config_word(pdev, 0x41, &cfg);
+ /* Only on the original revision: IDE DMA can hang */
+ if(rev == 0x00)
+ no_piix_dma = 1;
+ /* On all revisions below 5 PXB bus lock must be disabled for IDE */
+ else if(cfg & (1<<14) && rev < 5)
+ no_piix_dma = 2;
+ }
+ if(no_piix_dma)
+ printk(KERN_WARNING "piix: 450NX errata present, disabling IDE DMA.\n");
+ if(no_piix_dma == 2)
+ printk(KERN_WARNING "piix: A BIOS update may resolve this.\n");
+}
+
+static struct pci_device_id piix_pci_tbl[] = {
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371FB_0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371FB_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371MX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82372FB_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10,PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_11,PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_11,PCI_ANY_ID, PCI_ANY_ID, 0, 0, 14},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_11,PCI_ANY_ID, PCI_ANY_ID, 0, 0, 15},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801E_11, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 16},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_10,PCI_ANY_ID, PCI_ANY_ID, 0, 0, 17},
+#ifdef CONFIG_BLK_DEV_IDE_SATA
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 18},
+#endif
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 19},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_19, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 20},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 21},
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 22},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, piix_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "PIIX_IDE",
+ .id_table = piix_pci_tbl,
+ .probe = piix_init_one,
+};
+
+static int __init piix_ide_init(void)
+{
+ piix_check_450nx();
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(piix_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick, Andrzej Krzysztofowicz");
+MODULE_DESCRIPTION("PCI driver module for Intel PIIX IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/rz1000.c b/drivers/ide/pci/rz1000.c
new file mode 100644
index 0000000..608cd76
--- /dev/null
+++ b/drivers/ide/pci/rz1000.c
@@ -0,0 +1,91 @@
+/*
+ * 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.
+ *
+ * Dunno if this fixes both ports, or only the primary port (?).
+ */
+
+#undef REALLY_SLOW_IO /* most systems can safely undef this */
+
+#include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+static void __devinit init_hwif_rz1000 (ide_hwif_t *hwif)
+{
+ u16 reg;
+ struct pci_dev *dev = hwif->pci_dev;
+
+ hwif->chipset = ide_rz1000;
+ if (!pci_read_config_word (dev, 0x40, ®) &&
+ !pci_write_config_word(dev, 0x40, reg & 0xdfff)) {
+ printk(KERN_INFO "%s: disabled chipset read-ahead "
+ "(buggy RZ1000/RZ1001)\n", hwif->name);
+ } else {
+ hwif->serialized = 1;
+ hwif->drives[0].no_unmask = 1;
+ hwif->drives[1].no_unmask = 1;
+ printk(KERN_INFO "%s: serialized, disabled unmasking "
+ "(buggy RZ1000/RZ1001)\n", hwif->name);
+ }
+}
+
+static ide_pci_device_t rz1000_chipset __devinitdata = {
+ .name = "RZ100x",
+ .init_hwif = init_hwif_rz1000,
+ .channels = 2,
+ .autodma = NODMA,
+ .bootable = ON_BOARD,
+};
+
+static int __devinit rz1000_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &rz1000_chipset);
+}
+
+static struct pci_device_id rz1000_pci_tbl[] = {
+ { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, rz1000_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "RZ1000_IDE",
+ .id_table = rz1000_pci_tbl,
+ .probe = rz1000_init_one,
+};
+
+static int rz1000_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(rz1000_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for RZ1000 IDE");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
new file mode 100644
index 0000000..84fda21
--- /dev/null
+++ b/drivers/ide/pci/sc1200.c
@@ -0,0 +1,518 @@
+/*
+ * 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.
+ *
+ * Documentation:
+ * Available from National Semiconductor
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+#include <linux/pm.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#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
+
+#define PCI_CLK_33 0x00
+#define PCI_CLK_48 0x01
+#define PCI_CLK_66 0x02
+#define PCI_CLK_33A 0x03
+
+static unsigned short sc1200_get_pci_clock (void)
+{
+ unsigned char chip_id, silicon_revision;
+ unsigned int pci_clock;
+ /*
+ * Check the silicon revision, as not all versions of the chip
+ * have the register with the fast PCI bus timings.
+ */
+ chip_id = inb (0x903c);
+ silicon_revision = inb (0x903d);
+
+ // Read the fast pci clock frequency
+ if (chip_id == 0x04 && silicon_revision < SC1200_REV_B1) {
+ pci_clock = PCI_CLK_33;
+ } else {
+ // check clock generator configuration (cfcc)
+ // the clock is in bits 8 and 9 of this word
+
+ pci_clock = inw (0x901e);
+ pci_clock >>= 8;
+ pci_clock &= 0x03;
+ if (pci_clock == PCI_CLK_33A)
+ pci_clock = PCI_CLK_33;
+ }
+ return pci_clock;
+}
+
+extern char *ide_xfer_verbose (byte xfer_rate);
+
+/*
+ * Set a new transfer mode at the drive
+ */
+static int sc1200_set_xfer_mode (ide_drive_t *drive, byte mode)
+{
+ printk("%s: sc1200_set_xfer_mode(%s)\n", drive->name, ide_xfer_verbose(mode));
+ return ide_config_drive_speed(drive, mode);
+}
+
+/*
+ * Here are the standard PIO mode 0-4 timings for each "format".
+ * Format-0 uses fast data reg timings, with slower command reg timings.
+ * Format-1 uses fast timings for all registers, but won't work with all drives.
+ */
+static const unsigned int sc1200_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
+
+/*
+ * After chip reset, the PIO timings are set to 0x00009172, which is not valid.
+ */
+//#define SC1200_BAD_PIO(timings) (((timings)&~0x80000000)==0x00009172)
+
+static int sc1200_autoselect_dma_mode (ide_drive_t *drive)
+{
+ int udma_ok = 1, mode = 0;
+ ide_hwif_t *hwif = HWIF(drive);
+ int unit = drive->select.b.unit;
+ ide_drive_t *mate = &hwif->drives[unit^1];
+ struct hd_driveid *id = drive->id;
+
+ /*
+ * The SC1200 specifies that two drives sharing a cable cannot
+ * mix UDMA/MDMA. It has to be one or the other, for the pair,
+ * though different timings can still be chosen for each drive.
+ * We could set the appropriate timing bits on the fly,
+ * but that might be a bit confusing. So, for now we statically
+ * handle this requirement by looking at our mate drive to see
+ * what it is capable of, before choosing a mode for our own drive.
+ */
+ if (mate->present) {
+ struct hd_driveid *mateid = mate->id;
+ if (mateid && (mateid->capability & 1) && !__ide_dma_bad_drive(mate)) {
+ if ((mateid->field_valid & 4) && (mateid->dma_ultra & 7))
+ udma_ok = 1;
+ else if ((mateid->field_valid & 2) && (mateid->dma_mword & 7))
+ udma_ok = 0;
+ else
+ udma_ok = 1;
+ }
+ }
+ /*
+ * Now see what the current drive is capable of,
+ * selecting UDMA only if the mate said it was ok.
+ */
+ if (id && (id->capability & 1) && hwif->autodma && !__ide_dma_bad_drive(drive)) {
+ if (udma_ok && (id->field_valid & 4) && (id->dma_ultra & 7)) {
+ if (id->dma_ultra & 4)
+ mode = XFER_UDMA_2;
+ else if (id->dma_ultra & 2)
+ mode = XFER_UDMA_1;
+ else if (id->dma_ultra & 1)
+ mode = XFER_UDMA_0;
+ }
+ if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) {
+ if (id->dma_mword & 4)
+ mode = XFER_MW_DMA_2;
+ else if (id->dma_mword & 2)
+ mode = XFER_MW_DMA_1;
+ else if (id->dma_mword & 1)
+ mode = XFER_MW_DMA_0;
+ }
+ }
+ return mode;
+}
+
+/*
+ * sc1200_config_dma2() handles selection/setting of DMA/UDMA modes
+ * for both the chipset and drive.
+ */
+static int sc1200_config_dma2 (ide_drive_t *drive, int mode)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ int unit = drive->select.b.unit;
+ unsigned int reg, timings;
+ unsigned short pci_clock;
+ unsigned int basereg = hwif->channel ? 0x50 : 0x40;
+
+ /*
+ * Default to DMA-off in case we run into trouble here.
+ */
+ hwif->ide_dma_off_quietly(drive); /* turn off DMA while we fiddle */
+ outb(inb(hwif->dma_base+2)&~(unit?0x40:0x20), hwif->dma_base+2); /* clear DMA_capable bit */
+
+ /*
+ * Tell the drive to switch to the new mode; abort on failure.
+ */
+ if (!mode || sc1200_set_xfer_mode(drive, mode)) {
+ printk("SC1200: set xfer mode failure\n");
+ return 1; /* failure */
+ }
+
+ pci_clock = sc1200_get_pci_clock();
+
+ /*
+ * Now tune the chipset to match the drive:
+ *
+ * Note that each DMA mode has several timings associated with it.
+ * The correct timing depends on the fast PCI clock freq.
+ */
+ timings = 0;
+ switch (mode) {
+ case XFER_UDMA_0:
+ switch (pci_clock) {
+ case PCI_CLK_33: timings = 0x00921250; break;
+ case PCI_CLK_48: timings = 0x00932470; break;
+ case PCI_CLK_66: timings = 0x009436a1; break;
+ }
+ break;
+ case XFER_UDMA_1:
+ switch (pci_clock) {
+ case PCI_CLK_33: timings = 0x00911140; break;
+ case PCI_CLK_48: timings = 0x00922260; break;
+ case PCI_CLK_66: timings = 0x00933481; break;
+ }
+ break;
+ case XFER_UDMA_2:
+ switch (pci_clock) {
+ case PCI_CLK_33: timings = 0x00911030; break;
+ case PCI_CLK_48: timings = 0x00922140; break;
+ case PCI_CLK_66: timings = 0x00923261; break;
+ }
+ break;
+ case XFER_MW_DMA_0:
+ switch (pci_clock) {
+ case PCI_CLK_33: timings = 0x00077771; break;
+ case PCI_CLK_48: timings = 0x000bbbb2; break;
+ case PCI_CLK_66: timings = 0x000ffff3; break;
+ }
+ break;
+ case XFER_MW_DMA_1:
+ switch (pci_clock) {
+ case PCI_CLK_33: timings = 0x00012121; break;
+ case PCI_CLK_48: timings = 0x00024241; break;
+ case PCI_CLK_66: timings = 0x00035352; break;
+ }
+ break;
+ case XFER_MW_DMA_2:
+ switch (pci_clock) {
+ case PCI_CLK_33: timings = 0x00002020; break;
+ case PCI_CLK_48: timings = 0x00013131; break;
+ case PCI_CLK_66: timings = 0x00015151; break;
+ }
+ break;
+ }
+
+ if (timings == 0) {
+ printk("%s: sc1200_config_dma: huh? mode=%02x clk=%x \n", drive->name, mode, pci_clock);
+ return 1; /* failure */
+ }
+
+ if (unit == 0) { /* are we configuring drive0? */
+ pci_read_config_dword(hwif->pci_dev, basereg+4, ®);
+ timings |= reg & 0x80000000; /* preserve PIO format bit */
+ pci_write_config_dword(hwif->pci_dev, basereg+4, timings);
+ } else {
+ pci_write_config_dword(hwif->pci_dev, basereg+12, timings);
+ }
+
+ outb(inb(hwif->dma_base+2)|(unit?0x40:0x20), hwif->dma_base+2); /* set DMA_capable bit */
+
+ /*
+ * Finally, turn DMA on in software, and exit.
+ */
+ return hwif->ide_dma_on(drive); /* success */
+}
+
+/*
+ * sc1200_config_dma() handles selection/setting of DMA/UDMA modes
+ * for both the chipset and drive.
+ */
+static int sc1200_config_dma (ide_drive_t *drive)
+{
+ return sc1200_config_dma2(drive, sc1200_autoselect_dma_mode(drive));
+}
+
+
+/* Replacement for the standard ide_dma_end action in
+ * dma_proc.
+ *
+ * returns 1 on error, 0 otherwise
+ */
+static int sc1200_ide_dma_end (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned long dma_base = hwif->dma_base;
+ byte dma_stat;
+
+ dma_stat = inb(dma_base+2); /* get DMA status */
+
+ if (!(dma_stat & 4))
+ printk(" ide_dma_end dma_stat=%0x err=%x newerr=%x\n",
+ dma_stat, ((dma_stat&7)!=4), ((dma_stat&2)==2));
+
+ outb(dma_stat|0x1b, dma_base+2); /* clear the INTR & ERROR bits */
+ outb(inb(dma_base)&~1, dma_base); /* !! DO THIS HERE !! stop DMA */
+
+ drive->waiting_for_dma = 0;
+ ide_destroy_dmatable(drive); /* purge DMA mappings */
+
+ return (dma_stat & 7) != 4; /* verify good DMA status */
+}
+
+/*
+ * sc1200_tuneproc() handles selection/setting of PIO modes
+ * for both the chipset and drive.
+ *
+ * All existing BIOSs for this chipset guarantee that all drives
+ * will have valid default PIO timings set up before we get here.
+ */
+static void sc1200_tuneproc (ide_drive_t *drive, byte pio) /* mode=255 means "autotune" */
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned int format;
+ static byte modes[5] = {XFER_PIO_0, XFER_PIO_1, XFER_PIO_2, XFER_PIO_3, XFER_PIO_4};
+ int mode = -1;
+
+ switch (pio) {
+ case 200: mode = XFER_UDMA_0; break;
+ case 201: mode = XFER_UDMA_1; break;
+ case 202: mode = XFER_UDMA_2; break;
+ case 100: mode = XFER_MW_DMA_0; break;
+ case 101: mode = XFER_MW_DMA_1; break;
+ case 102: mode = XFER_MW_DMA_2; break;
+ }
+ if (mode != -1) {
+ printk("SC1200: %s: changing (U)DMA mode\n", drive->name);
+ (void)sc1200_config_dma2(drive, mode);
+ return;
+ }
+
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ printk("SC1200: %s: setting PIO mode%d\n", drive->name, pio);
+ if (!sc1200_set_xfer_mode(drive, modes[pio])) {
+ unsigned int basereg = hwif->channel ? 0x50 : 0x40;
+ pci_read_config_dword (hwif->pci_dev, basereg+4, &format);
+ format = (format >> 31) & 1;
+ if (format)
+ format += sc1200_get_pci_clock();
+ pci_write_config_dword(hwif->pci_dev, basereg + (drive->select.b.unit << 3), sc1200_pio_timings[format][pio]);
+ }
+}
+
+static ide_hwif_t *lookup_pci_dev (ide_hwif_t *prev, struct pci_dev *dev)
+{
+ int h;
+
+ for (h = 0; h < MAX_HWIFS; h++) {
+ ide_hwif_t *hwif = &ide_hwifs[h];
+ if (prev) {
+ if (hwif == prev)
+ prev = NULL; // found previous, now look for next match
+ } else {
+ if (hwif && hwif->pci_dev == dev)
+ return hwif; // found next match
+ }
+ }
+ return NULL; // not found
+}
+
+typedef struct sc1200_saved_state_s {
+ __u32 regs[4];
+} sc1200_saved_state_t;
+
+
+static int sc1200_suspend (struct pci_dev *dev, u32 state)
+{
+ ide_hwif_t *hwif = NULL;
+
+ printk("SC1200: suspend(%u)\n", state);
+
+ if (state == 0) {
+ // we only save state when going from full power to less
+
+ //
+ // Loop over all interfaces that are part of this PCI device:
+ //
+ while ((hwif = lookup_pci_dev(hwif, dev)) != NULL) {
+ sc1200_saved_state_t *ss;
+ unsigned int basereg, r;
+ //
+ // allocate a permanent save area, if not already allocated
+ //
+ ss = (sc1200_saved_state_t *)hwif->config_data;
+ if (ss == NULL) {
+ ss = kmalloc(sizeof(sc1200_saved_state_t), GFP_KERNEL);
+ if (ss == NULL)
+ return -ENOMEM;
+ hwif->config_data = (unsigned long)ss;
+ }
+ ss = (sc1200_saved_state_t *)hwif->config_data;
+ //
+ // Save timing registers: this may be unnecessary if
+ // BIOS also does it
+ //
+ basereg = hwif->channel ? 0x50 : 0x40;
+ for (r = 0; r < 4; ++r) {
+ pci_read_config_dword (hwif->pci_dev, basereg + (r<<2), &ss->regs[r]);
+ }
+ }
+ }
+
+ /* You don't need to iterate over disks -- sysfs should have done that for you already */
+
+ pci_disable_device(dev);
+ pci_set_power_state(dev,state);
+ dev->current_state = state;
+ return 0;
+}
+
+static int sc1200_resume (struct pci_dev *dev)
+{
+ ide_hwif_t *hwif = NULL;
+
+printk("SC1200: resume\n");
+ pci_set_power_state(dev,0); // bring chip back from sleep state
+ dev->current_state = 0;
+ pci_enable_device(dev);
+ //
+ // loop over all interfaces that are part of this pci device:
+ //
+ while ((hwif = lookup_pci_dev(hwif, dev)) != NULL) {
+ unsigned int basereg, r, d, format;
+ sc1200_saved_state_t *ss = (sc1200_saved_state_t *)hwif->config_data;
+printk("%s: SC1200: resume\n", hwif->name);
+
+ //
+ // Restore timing registers: this may be unnecessary if BIOS also does it
+ //
+ basereg = hwif->channel ? 0x50 : 0x40;
+ if (ss != NULL) {
+ for (r = 0; r < 4; ++r) {
+ pci_write_config_dword(hwif->pci_dev, basereg + (r<<2), ss->regs[r]);
+ }
+ }
+ //
+ // Re-program drive PIO modes
+ //
+ pci_read_config_dword(hwif->pci_dev, basereg+4, &format);
+ format = (format >> 31) & 1;
+ if (format)
+ format += sc1200_get_pci_clock();
+ for (d = 0; d < 2; ++d) {
+ ide_drive_t *drive = &(hwif->drives[d]);
+ if (drive->present) {
+ unsigned int pio, timings;
+ pci_read_config_dword(hwif->pci_dev, basereg+(drive->select.b.unit << 3), &timings);
+ for (pio = 0; pio <= 4; ++pio) {
+ if (sc1200_pio_timings[format][pio] == timings)
+ break;
+ }
+ if (pio > 4)
+ pio = 255; /* autotune */
+ (void)sc1200_tuneproc(drive, pio);
+ }
+ }
+ //
+ // Re-program drive DMA modes
+ //
+ for (d = 0; d < MAX_DRIVES; ++d) {
+ ide_drive_t *drive = &(hwif->drives[d]);
+ if (drive->present && !__ide_dma_bad_drive(drive)) {
+ int was_using_dma = drive->using_dma;
+ hwif->ide_dma_off_quietly(drive);
+ sc1200_config_dma(drive);
+ if (!was_using_dma && drive->using_dma) {
+ hwif->ide_dma_off_quietly(drive);
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/*
+ * This gets invoked by the IDE driver once for each channel,
+ * and performs channel-specific pre-initialization before drive probing.
+ */
+static void __init init_hwif_sc1200 (ide_hwif_t *hwif)
+{
+ if (hwif->mate)
+ hwif->serialized = hwif->mate->serialized = 1;
+ hwif->autodma = 0;
+ if (hwif->dma_base) {
+ hwif->ide_dma_check = &sc1200_config_dma;
+ hwif->ide_dma_end = &sc1200_ide_dma_end;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->tuneproc = &sc1200_tuneproc;
+ }
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x07;
+ hwif->mwdma_mask = 0x07;
+
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t sc1200_chipset __devinitdata = {
+ .name = "SC1200",
+ .init_hwif = init_hwif_sc1200,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+};
+
+static int __devinit sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &sc1200_chipset);
+}
+
+static struct pci_device_id sc1200_pci_tbl[] = {
+ { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, sc1200_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "SC1200_IDE",
+ .id_table = sc1200_pci_tbl,
+ .probe = sc1200_init_one,
+ .suspend = sc1200_suspend,
+ .resume = sc1200_resume,
+};
+
+static int sc1200_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(sc1200_ide_init);
+
+MODULE_AUTHOR("Mark Lord");
+MODULE_DESCRIPTION("PCI driver module for NS SC1200 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
new file mode 100644
index 0000000..82a1103
--- /dev/null
+++ b/drivers/ide/pci/serverworks.c
@@ -0,0 +1,675 @@
+/*
+ * linux/drivers/ide/pci/serverworks.c Version 0.8 25 Ebr 2003
+ *
+ * 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/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+
+#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 *svwks_bad_ata100[] = {
+ "ST320011A",
+ "ST340016A",
+ "ST360021A",
+ "ST380021A",
+ NULL
+};
+
+static u8 svwks_revision = 0;
+static struct pci_dev *isa_dev;
+
+static int check_in_drive_lists (ide_drive_t *drive, const char **list)
+{
+ while (*list)
+ if (!strcmp(*list++, drive->id->model))
+ return 1;
+ return 0;
+}
+
+static u8 svwks_ratemask (ide_drive_t *drive)
+{
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 mode;
+
+ if (!svwks_revision)
+ pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
+
+ if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
+ u32 reg = 0;
+ if (isa_dev)
+ pci_read_config_dword(isa_dev, 0x64, ®);
+
+ /*
+ * Don't enable UDMA on disk devices for the moment
+ */
+ if(drive->media == ide_disk)
+ return 0;
+ /* Check the OSB4 DMA33 enable bit */
+ return ((reg & 0x00004000) == 0x00004000) ? 1 : 0;
+ } else if (svwks_revision < SVWKS_CSB5_REVISION_NEW) {
+ return 1;
+ } else if (svwks_revision >= SVWKS_CSB5_REVISION_NEW) {
+ u8 btr = 0;
+ pci_read_config_byte(dev, 0x5A, &btr);
+ mode = btr & 0x3;
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ /* If someone decides to do UDMA133 on CSB5 the same
+ issue will bite so be inclusive */
+ if (mode > 2 && check_in_drive_lists(drive, svwks_bad_ata100))
+ mode = 2;
+ }
+ if (((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
+ (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) &&
+ (!(PCI_FUNC(dev->devfn) & 1)))
+ mode = 2;
+ return mode;
+}
+
+static u8 svwks_csb_check (struct pci_dev *dev)
+{
+ switch (dev->device) {
+ case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
+ case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
+ case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
+ return 1;
+ default:
+ break;
+ }
+ return 0;
+}
+static int svwks_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ u8 udma_modes[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
+ u8 dma_modes[] = { 0x77, 0x21, 0x20 };
+ u8 pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
+ u8 drive_pci[] = { 0x41, 0x40, 0x43, 0x42 };
+ u8 drive_pci2[] = { 0x45, 0x44, 0x47, 0x46 };
+
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 speed;
+ u8 pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
+ u8 unit = (drive->select.b.unit & 0x01);
+ u8 csb5 = svwks_csb_check(dev);
+ u8 ultra_enable = 0, ultra_timing = 0;
+ u8 dma_timing = 0, pio_timing = 0;
+ u16 csb5_pio = 0;
+
+ if (xferspeed == 255) /* PIO auto-tuning */
+ speed = XFER_PIO_0 + pio;
+ else
+ speed = ide_rate_filter(svwks_ratemask(drive), xferspeed);
+
+ /* If we are about to put a disk into UDMA mode we screwed up.
+ Our code assumes we never _ever_ do this on an OSB4 */
+
+ if(dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4 &&
+ drive->media == ide_disk && speed >= XFER_UDMA_0)
+ BUG();
+
+ pci_read_config_byte(dev, drive_pci[drive->dn], &pio_timing);
+ pci_read_config_byte(dev, drive_pci2[drive->dn], &dma_timing);
+ pci_read_config_byte(dev, (0x56|hwif->channel), &ultra_timing);
+ pci_read_config_word(dev, 0x4A, &csb5_pio);
+ pci_read_config_byte(dev, 0x54, &ultra_enable);
+
+ /* Per Specified Design by OEM, and ASIC Architect */
+ if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
+ (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
+ if (!drive->init_speed) {
+ u8 dma_stat = hwif->INB(hwif->dma_status);
+
+dma_pio:
+ if (((ultra_enable << (7-drive->dn) & 0x80) == 0x80) &&
+ ((dma_stat & (1<<(5+unit))) == (1<<(5+unit)))) {
+ drive->current_speed = drive->init_speed = XFER_UDMA_0 + udma_modes[(ultra_timing >> (4*unit)) & ~(0xF0)];
+ return 0;
+ } else if ((dma_timing) &&
+ ((dma_stat&(1<<(5+unit)))==(1<<(5+unit)))) {
+ u8 dmaspeed = dma_timing;
+
+ dma_timing &= ~0xFF;
+ if ((dmaspeed & 0x20) == 0x20)
+ dmaspeed = XFER_MW_DMA_2;
+ else if ((dmaspeed & 0x21) == 0x21)
+ dmaspeed = XFER_MW_DMA_1;
+ else if ((dmaspeed & 0x77) == 0x77)
+ dmaspeed = XFER_MW_DMA_0;
+ else
+ goto dma_pio;
+ drive->current_speed = drive->init_speed = dmaspeed;
+ return 0;
+ } else if (pio_timing) {
+ u8 piospeed = pio_timing;
+
+ pio_timing &= ~0xFF;
+ if ((piospeed & 0x20) == 0x20)
+ piospeed = XFER_PIO_4;
+ else if ((piospeed & 0x22) == 0x22)
+ piospeed = XFER_PIO_3;
+ else if ((piospeed & 0x34) == 0x34)
+ piospeed = XFER_PIO_2;
+ else if ((piospeed & 0x47) == 0x47)
+ piospeed = XFER_PIO_1;
+ else if ((piospeed & 0x5d) == 0x5d)
+ piospeed = XFER_PIO_0;
+ else
+ goto oem_setup_failed;
+ drive->current_speed = drive->init_speed = piospeed;
+ return 0;
+ }
+ }
+ }
+
+oem_setup_failed:
+
+ pio_timing &= ~0xFF;
+ dma_timing &= ~0xFF;
+ ultra_timing &= ~(0x0F << (4*unit));
+ ultra_enable &= ~(0x01 << drive->dn);
+ csb5_pio &= ~(0x0F << (4*drive->dn));
+
+ switch(speed) {
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ pio_timing |= pio_modes[speed - XFER_PIO_0];
+ csb5_pio |= ((speed - XFER_PIO_0) << (4*drive->dn));
+ break;
+
+ case XFER_MW_DMA_2:
+ case XFER_MW_DMA_1:
+ case XFER_MW_DMA_0:
+ pio_timing |= pio_modes[pio];
+ csb5_pio |= (pio << (4*drive->dn));
+ dma_timing |= dma_modes[speed - XFER_MW_DMA_0];
+ break;
+
+ case XFER_UDMA_5:
+ case XFER_UDMA_4:
+ case XFER_UDMA_3:
+ case XFER_UDMA_2:
+ case XFER_UDMA_1:
+ case XFER_UDMA_0:
+ pio_timing |= pio_modes[pio];
+ csb5_pio |= (pio << (4*drive->dn));
+ dma_timing |= dma_modes[2];
+ ultra_timing |= ((udma_modes[speed - XFER_UDMA_0]) << (4*unit));
+ ultra_enable |= (0x01 << drive->dn);
+ default:
+ break;
+ }
+
+ pci_write_config_byte(dev, drive_pci[drive->dn], pio_timing);
+ if (csb5)
+ pci_write_config_word(dev, 0x4A, csb5_pio);
+
+ pci_write_config_byte(dev, drive_pci2[drive->dn], dma_timing);
+ pci_write_config_byte(dev, (0x56|hwif->channel), ultra_timing);
+ pci_write_config_byte(dev, 0x54, ultra_enable);
+
+ return (ide_config_drive_speed(drive, speed));
+}
+
+static void config_chipset_for_pio (ide_drive_t *drive)
+{
+ u16 eide_pio_timing[6] = {960, 480, 240, 180, 120, 90};
+ u16 xfer_pio = drive->id->eide_pio_modes;
+ u8 timing, speed, pio;
+
+ pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
+
+ if (xfer_pio > 4)
+ xfer_pio = 0;
+
+ if (drive->id->eide_pio_iordy > 0)
+ for (xfer_pio = 5;
+ xfer_pio>0 &&
+ drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio];
+ xfer_pio--);
+ else
+ xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
+ (drive->id->eide_pio_modes & 2) ? 0x04 :
+ (drive->id->eide_pio_modes & 1) ? 0x03 :
+ (drive->id->tPIO & 2) ? 0x02 :
+ (drive->id->tPIO & 1) ? 0x01 : xfer_pio;
+
+ timing = (xfer_pio >= pio) ? xfer_pio : pio;
+
+ switch(timing) {
+ case 4: speed = XFER_PIO_4;break;
+ case 3: speed = XFER_PIO_3;break;
+ case 2: speed = XFER_PIO_2;break;
+ case 1: speed = XFER_PIO_1;break;
+ default:
+ speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW;
+ break;
+ }
+ (void) svwks_tune_chipset(drive, speed);
+ drive->current_speed = speed;
+}
+
+static void svwks_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ if(pio == 255)
+ (void) svwks_tune_chipset(drive, 255);
+ else
+ (void) svwks_tune_chipset(drive, (XFER_PIO_0 + pio));
+}
+
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, svwks_ratemask(drive));
+
+ if (!(speed))
+ speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
+
+ (void) svwks_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int svwks_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if ((id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ config_chipset_for_pio(drive);
+ // hwif->tuneproc(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+/* This can go soon */
+
+static int svwks_ide_dma_end (ide_drive_t *drive)
+{
+ return __ide_dma_end(drive);
+}
+
+static unsigned int __devinit init_chipset_svwks (struct pci_dev *dev, const char *name)
+{
+ unsigned int reg;
+ u8 btr;
+
+ /* save revision id to determine DMA capability */
+ pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
+
+ /* force Master Latency Timer value to 64 PCICLKs */
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40);
+
+ /* OSB4 : South Bridge and IDE */
+ if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
+ isa_dev = pci_find_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 "%s: UDMA not BIOS enabled.\n", name);
+ reg |= 0x00004000; /* enable UDMA/33 support */
+ pci_write_config_dword(isa_dev, 0x64, reg);
+ }
+ }
+
+ /* setup CSB5/CSB6 : South Bridge and IDE option RAID */
+ else if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ||
+ (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
+ (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
+
+ /* Third Channel Test */
+ if (!(PCI_FUNC(dev->devfn) & 1)) {
+ struct pci_dev * findev = NULL;
+ u32 reg4c = 0;
+ findev = pci_find_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);
+ }
+ outb_p(0x06, 0x0c00);
+ dev->irq = inb_p(0x0c01);
+#if 0
+ printk("%s: device class (0x%04x)\n",
+ name, dev->class);
+ if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) {
+ dev->class &= ~0x000F0F00;
+ // dev->class |= ~0x00000400;
+ dev->class |= ~0x00010100;
+ /**/
+ }
+#endif
+ } else {
+ struct pci_dev * findev = NULL;
+ u8 reg41 = 0;
+
+ findev = pci_find_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);
+ }
+ /*
+ * This is a device pin issue on CSB6.
+ * Since there will be a future raid mode,
+ * early versions of the chipset require the
+ * interrupt pin to be set, and it is a compatibility
+ * mode issue.
+ */
+ if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE)
+ dev->irq = 0;
+ }
+// pci_read_config_dword(dev, 0x40, &pioreg)
+// pci_write_config_dword(dev, 0x40, 0x99999999);
+// pci_read_config_dword(dev, 0x44, &dmareg);
+// pci_write_config_dword(dev, 0x44, 0xFFFFFFFF);
+ /* 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(dev, 0x5A, &btr);
+ btr &= ~0x40;
+ if (!(PCI_FUNC(dev->devfn) & 1))
+ btr |= 0x2;
+ else
+ btr |= (svwks_revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
+ pci_write_config_byte(dev, 0x5A, btr);
+ }
+
+ return (dev->irq) ? dev->irq : 0;
+}
+
+static unsigned int __init ata66_svwks_svwks (ide_hwif_t *hwif)
+{
+ return 1;
+}
+
+/* On Dell PowerEdge servers with a CSB5/CSB6, the top two bits
+ * of the subsystem device ID indicate presence of an 80-pin cable.
+ * Bit 15 clear = secondary IDE channel does not have 80-pin cable.
+ * Bit 15 set = secondary IDE channel has 80-pin cable.
+ * Bit 14 clear = primary IDE channel does not have 80-pin cable.
+ * Bit 14 set = primary IDE channel has 80-pin cable.
+ */
+static unsigned int __init ata66_svwks_dell (ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
+ dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
+ (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE ||
+ dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE))
+ return ((1 << (hwif->channel + 14)) &
+ dev->subsystem_device) ? 1 : 0;
+ return 0;
+}
+
+/* Sun Cobalt Alpine hardware avoids the 80-pin cable
+ * detect issue by attaching the drives directly to the board.
+ * This check follows the Dell precedent (how scary is that?!)
+ *
+ * WARNING: this only works on Alpine hardware!
+ */
+static unsigned int __init ata66_svwks_cobalt (ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN &&
+ dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
+ dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
+ return ((1 << (hwif->channel + 14)) &
+ dev->subsystem_device) ? 1 : 0;
+ return 0;
+}
+
+static unsigned int __init ata66_svwks (ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+
+ /* Per Specified Design by OEM, and ASIC Architect */
+ if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
+ (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2))
+ return 1;
+
+ /* Server Works */
+ if (dev->subsystem_vendor == PCI_VENDOR_ID_SERVERWORKS)
+ return ata66_svwks_svwks (hwif);
+
+ /* Dell PowerEdge */
+ if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL)
+ return ata66_svwks_dell (hwif);
+
+ /* Cobalt Alpine */
+ if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN)
+ return ata66_svwks_cobalt (hwif);
+
+ return 0;
+}
+
+#undef CAN_SW_DMA
+static void __devinit init_hwif_svwks (ide_hwif_t *hwif)
+{
+ u8 dma_stat = 0;
+
+ if (!hwif->irq)
+ hwif->irq = hwif->channel ? 15 : 14;
+
+ hwif->tuneproc = &svwks_tune_drive;
+ hwif->speedproc = &svwks_tune_chipset;
+
+ hwif->atapi_dma = 1;
+
+ if (hwif->pci_dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE)
+ hwif->ultra_mask = 0x3f;
+
+ hwif->mwdma_mask = 0x07;
+#ifdef CAN_SW_DMA
+ hwif->swdma_mask = 0x07;
+#endif /* CAN_SW_DMA */
+
+ hwif->autodma = 0;
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->ide_dma_check = &svwks_config_drive_xfer_rate;
+ if (hwif->pci_dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE)
+ hwif->ide_dma_end = &svwks_ide_dma_end;
+ else if (!(hwif->udma_four))
+ hwif->udma_four = ata66_svwks(hwif);
+ if (!noautodma)
+ hwif->autodma = 1;
+
+ dma_stat = hwif->INB(hwif->dma_status);
+ hwif->drives[0].autodma = (dma_stat & 0x20);
+ hwif->drives[1].autodma = (dma_stat & 0x40);
+ hwif->drives[0].autotune = (!(dma_stat & 0x20));
+ hwif->drives[1].autotune = (!(dma_stat & 0x40));
+// hwif->drives[0].autodma = hwif->autodma;
+// hwif->drives[1].autodma = hwif->autodma;
+}
+
+/*
+ * We allow the BM-DMA driver to only work on enabled interfaces.
+ */
+static void __devinit init_dma_svwks (ide_hwif_t *hwif, unsigned long dmabase)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+
+ if (((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
+ (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) &&
+ (!(PCI_FUNC(dev->devfn) & 1)) && (hwif->channel))
+ return;
+
+ ide_setup_dma(hwif, dmabase, 8);
+}
+
+static int __devinit init_setup_svwks (struct pci_dev *dev, ide_pci_device_t *d)
+{
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __init init_setup_csb6 (struct pci_dev *dev, ide_pci_device_t *d)
+{
+ if (!(PCI_FUNC(dev->devfn) & 1)) {
+ d->bootable = NEVER_BOARD;
+ if (dev->resource[0].start == 0x01f1)
+ d->bootable = ON_BOARD;
+ }
+#if 0
+ if ((IDE_PCI_DEVID_EQ(d->devid, DEVID_CSB6) &&
+ (!(PCI_FUNC(dev->devfn) & 1)))
+ d->autodma = AUTODMA;
+#endif
+
+ d->channels = ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE ||
+ dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2) &&
+ (!(PCI_FUNC(dev->devfn) & 1))) ? 1 : 2;
+
+ return ide_setup_pci_device(dev, d);
+}
+
+static ide_pci_device_t serverworks_chipsets[] __devinitdata = {
+ { /* 0 */
+ .name = "SvrWks OSB4",
+ .init_setup = init_setup_svwks,
+ .init_chipset = init_chipset_svwks,
+ .init_hwif = init_hwif_svwks,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 1 */
+ .name = "SvrWks CSB5",
+ .init_setup = init_setup_svwks,
+ .init_chipset = init_chipset_svwks,
+ .init_hwif = init_hwif_svwks,
+ .init_dma = init_dma_svwks,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 2 */
+ .name = "SvrWks CSB6",
+ .init_setup = init_setup_csb6,
+ .init_chipset = init_chipset_svwks,
+ .init_hwif = init_hwif_svwks,
+ .init_dma = init_dma_svwks,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 3 */
+ .name = "SvrWks CSB6",
+ .init_setup = init_setup_csb6,
+ .init_chipset = init_chipset_svwks,
+ .init_hwif = init_hwif_svwks,
+ .init_dma = init_dma_svwks,
+ .channels = 1, /* 2 */
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ }
+};
+
+/**
+ * svwks_init_one - called when a OSB/CSB is found
+ * @dev: the svwks device
+ * @id: the matching pci id
+ *
+ * Called when the PCI registration layer (or the IDE initialization)
+ * finds a device matching our IDE device tables.
+ */
+
+static int __devinit svwks_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ ide_pci_device_t *d = &serverworks_chipsets[id->driver_data];
+
+ return d->init_setup(dev, d);
+}
+
+static struct pci_device_id svwks_pci_tbl[] = {
+ { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, svwks_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "Serverworks_IDE",
+ .id_table = svwks_pci_tbl,
+ .probe = svwks_init_one,
+};
+
+static int svwks_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(svwks_ide_init);
+
+MODULE_AUTHOR("Michael Aubry. Andrzej Krzysztofowicz, Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for Serverworks OSB4/CSB5/CSB6 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
new file mode 100644
index 0000000..4651a22
--- /dev/null
+++ b/drivers/ide/pci/sgiioc4.c
@@ -0,0 +1,728 @@
+/*
+ * Copyright (c) 2003 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/NoticeExplan
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/hdreg.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/ioc4_common.h>
+#include <asm/io.h>
+
+#include <linux/ide.h>
+
+/* IOC4 Specific Definitions */
+#define IOC4_CMD_OFFSET 0x100
+#define IOC4_CTRL_OFFSET 0x120
+#define IOC4_DMA_OFFSET 0x140
+#define IOC4_INTR_OFFSET 0x0
+
+#define IOC4_TIMING 0x00
+#define IOC4_DMA_PTR_L 0x01
+#define IOC4_DMA_PTR_H 0x02
+#define IOC4_DMA_ADDR_L 0x03
+#define IOC4_DMA_ADDR_H 0x04
+#define IOC4_BC_DEV 0x05
+#define IOC4_BC_MEM 0x06
+#define IOC4_DMA_CTRL 0x07
+#define IOC4_DMA_END_ADDR 0x08
+
+/* Bits in the IOC4 Control/Status Register */
+#define IOC4_S_DMA_START 0x01
+#define IOC4_S_DMA_STOP 0x02
+#define IOC4_S_DMA_DIR 0x04
+#define IOC4_S_DMA_ACTIVE 0x08
+#define IOC4_S_DMA_ERROR 0x10
+#define IOC4_ATA_MEMERR 0x02
+
+/* Read/Write Directions */
+#define IOC4_DMA_WRITE 0x04
+#define IOC4_DMA_READ 0x00
+
+/* Interrupt Register Offsets */
+#define IOC4_INTR_REG 0x03
+#define IOC4_INTR_SET 0x05
+#define IOC4_INTR_CLEAR 0x07
+
+#define IOC4_IDE_CACHELINE_SIZE 128
+#define IOC4_CMD_CTL_BLK_SIZE 0x20
+#define IOC4_SUPPORTED_FIRMWARE_REV 46
+
+typedef struct {
+ u32 timing_reg0;
+ u32 timing_reg1;
+ u32 low_mem_ptr;
+ u32 high_mem_ptr;
+ u32 low_mem_addr;
+ u32 high_mem_addr;
+ u32 dev_byte_count;
+ u32 mem_byte_count;
+ u32 status;
+} ioc4_dma_regs_t;
+
+/* Each Physical Region Descriptor Entry size is 16 bytes (2 * 64 bits) */
+/* IOC4 has only 1 IDE channel */
+#define IOC4_PRD_BYTES 16
+#define IOC4_PRD_ENTRIES (PAGE_SIZE /(4*IOC4_PRD_BYTES))
+
+
+static void
+sgiioc4_init_hwif_ports(hw_regs_t * hw, unsigned long data_port,
+ unsigned long ctrl_port, unsigned long irq_port)
+{
+ unsigned long reg = data_port;
+ int i;
+
+ /* Registers are word (32 bit) aligned */
+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
+ hw->io_ports[i] = reg + i * 4;
+
+ if (ctrl_port)
+ hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
+
+ if (irq_port)
+ hw->io_ports[IDE_IRQ_OFFSET] = irq_port;
+}
+
+static void
+sgiioc4_maskproc(ide_drive_t * drive, int mask)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ hwif->OUTB(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
+ IDE_CONTROL_REG);
+}
+
+
+static int
+sgiioc4_checkirq(ide_hwif_t * hwif)
+{
+ u8 intr_reg =
+ hwif->INL(hwif->io_ports[IDE_IRQ_OFFSET] + IOC4_INTR_REG * 4);
+
+ if (intr_reg & 0x03)
+ return 1;
+
+ return 0;
+}
+
+
+static int
+sgiioc4_clearirq(ide_drive_t * drive)
+{
+ u32 intr_reg;
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned long other_ir =
+ hwif->io_ports[IDE_IRQ_OFFSET] + (IOC4_INTR_REG << 2);
+
+ /* Code to check for PCI error conditions */
+ intr_reg = hwif->INL(other_ir);
+ if (intr_reg & 0x03) { /* Valid IOC4-IDE interrupt */
+ /*
+ * Using hwif->INB to read the IDE_STATUS_REG has a side effect
+ * of clearing the interrupt. The first read should clear it
+ * if it is set. The second read should return a "clear" status
+ * if it got cleared. If not, then spin for a bit trying to
+ * clear it.
+ */
+ u8 stat = hwif->INB(IDE_STATUS_REG);
+ int count = 0;
+ stat = hwif->INB(IDE_STATUS_REG);
+ while ((stat & 0x80) && (count++ < 100)) {
+ udelay(1);
+ stat = hwif->INB(IDE_STATUS_REG);
+ }
+
+ if (intr_reg & 0x02) {
+ /* Error when transferring DMA data on PCI bus */
+ u32 pci_err_addr_low, pci_err_addr_high,
+ pci_stat_cmd_reg;
+
+ pci_err_addr_low =
+ hwif->INL(hwif->io_ports[IDE_IRQ_OFFSET]);
+ pci_err_addr_high =
+ hwif->INL(hwif->io_ports[IDE_IRQ_OFFSET] + 4);
+ pci_read_config_dword(hwif->pci_dev, PCI_COMMAND,
+ &pci_stat_cmd_reg);
+ printk(KERN_ERR
+ "%s(%s) : PCI Bus Error when doing DMA:"
+ " status-cmd reg is 0x%x\n",
+ __FUNCTION__, drive->name, pci_stat_cmd_reg);
+ printk(KERN_ERR
+ "%s(%s) : PCI Error Address is 0x%x%x\n",
+ __FUNCTION__, drive->name,
+ pci_err_addr_high, pci_err_addr_low);
+ /* Clear the PCI Error indicator */
+ pci_write_config_dword(hwif->pci_dev, PCI_COMMAND,
+ 0x00000146);
+ }
+
+ /* Clear the Interrupt, Error bits on the IOC4 */
+ hwif->OUTL(0x03, other_ir);
+
+ intr_reg = hwif->INL(other_ir);
+ }
+
+ return intr_reg & 3;
+}
+
+static void sgiioc4_ide_dma_start(ide_drive_t * drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned int reg = hwif->INL(hwif->dma_base + IOC4_DMA_CTRL * 4);
+ unsigned int temp_reg = reg | IOC4_S_DMA_START;
+
+ hwif->OUTL(temp_reg, hwif->dma_base + IOC4_DMA_CTRL * 4);
+}
+
+static u32
+sgiioc4_ide_dma_stop(ide_hwif_t *hwif, u64 dma_base)
+{
+ u32 ioc4_dma;
+ int count;
+
+ count = 0;
+ ioc4_dma = hwif->INL(dma_base + IOC4_DMA_CTRL * 4);
+ while ((ioc4_dma & IOC4_S_DMA_STOP) && (count++ < 200)) {
+ udelay(1);
+ ioc4_dma = hwif->INL(dma_base + IOC4_DMA_CTRL * 4);
+ }
+ return ioc4_dma;
+}
+
+/* Stops the IOC4 DMA Engine */
+static int
+sgiioc4_ide_dma_end(ide_drive_t * drive)
+{
+ u32 ioc4_dma, bc_dev, bc_mem, num, valid = 0, cnt = 0;
+ ide_hwif_t *hwif = HWIF(drive);
+ u64 dma_base = hwif->dma_base;
+ int dma_stat = 0;
+ unsigned long *ending_dma = (unsigned long *) hwif->dma_base2;
+
+ hwif->OUTL(IOC4_S_DMA_STOP, dma_base + IOC4_DMA_CTRL * 4);
+
+ ioc4_dma = sgiioc4_ide_dma_stop(hwif, dma_base);
+
+ if (ioc4_dma & IOC4_S_DMA_STOP) {
+ printk(KERN_ERR
+ "%s(%s): IOC4 DMA STOP bit is still 1 :"
+ "ioc4_dma_reg 0x%x\n",
+ __FUNCTION__, drive->name, ioc4_dma);
+ dma_stat = 1;
+ }
+
+ /*
+ * The IOC4 will DMA 1's to the ending dma area to indicate that
+ * previous data DMA is complete. This is necessary because of relaxed
+ * ordering between register reads and DMA writes on the Altix.
+ */
+ while ((cnt++ < 200) && (!valid)) {
+ for (num = 0; num < 16; num++) {
+ if (ending_dma[num]) {
+ valid = 1;
+ break;
+ }
+ }
+ udelay(1);
+ }
+ if (!valid) {
+ printk(KERN_ERR "%s(%s) : DMA incomplete\n", __FUNCTION__,
+ drive->name);
+ dma_stat = 1;
+ }
+
+ bc_dev = hwif->INL(dma_base + IOC4_BC_DEV * 4);
+ bc_mem = hwif->INL(dma_base + IOC4_BC_MEM * 4);
+
+ if ((bc_dev & 0x01FF) || (bc_mem & 0x1FF)) {
+ if (bc_dev > bc_mem + 8) {
+ printk(KERN_ERR
+ "%s(%s): WARNING!! byte_count_dev %d "
+ "!= byte_count_mem %d\n",
+ __FUNCTION__, drive->name, bc_dev, bc_mem);
+ }
+ }
+
+ drive->waiting_for_dma = 0;
+ ide_destroy_dmatable(drive);
+
+ return dma_stat;
+}
+
+static int
+sgiioc4_ide_dma_check(ide_drive_t * drive)
+{
+ if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) {
+ printk(KERN_INFO
+ "Couldnot set %s in Multimode-2 DMA mode | "
+ "Drive %s using PIO instead\n",
+ drive->name, drive->name);
+ drive->using_dma = 0;
+ } else
+ drive->using_dma = 1;
+
+ return 0;
+}
+
+static int
+sgiioc4_ide_dma_on(ide_drive_t * drive)
+{
+ drive->using_dma = 1;
+
+ return HWIF(drive)->ide_dma_host_on(drive);
+}
+
+static int
+sgiioc4_ide_dma_off_quietly(ide_drive_t * drive)
+{
+ drive->using_dma = 0;
+
+ return HWIF(drive)->ide_dma_host_off(drive);
+}
+
+/* returns 1 if dma irq issued, 0 otherwise */
+static int
+sgiioc4_ide_dma_test_irq(ide_drive_t * drive)
+{
+ return sgiioc4_checkirq(HWIF(drive));
+}
+
+static int
+sgiioc4_ide_dma_host_on(ide_drive_t * drive)
+{
+ if (drive->using_dma)
+ return 0;
+
+ return 1;
+}
+
+static int
+sgiioc4_ide_dma_host_off(ide_drive_t * drive)
+{
+ sgiioc4_clearirq(drive);
+
+ return 0;
+}
+
+static int
+sgiioc4_ide_dma_lostirq(ide_drive_t * drive)
+{
+ HWIF(drive)->resetproc(drive);
+
+ return __ide_dma_lostirq(drive);
+}
+
+static void
+sgiioc4_resetproc(ide_drive_t * drive)
+{
+ sgiioc4_ide_dma_end(drive);
+ sgiioc4_clearirq(drive);
+}
+
+static u8
+sgiioc4_INB(unsigned long port)
+{
+ u8 reg = (u8) inb(port);
+
+ if ((port & 0xFFF) == 0x11C) { /* Status register of IOC4 */
+ if (reg & 0x51) { /* Not busy...check for interrupt */
+ unsigned long other_ir = port - 0x110;
+ unsigned int intr_reg = (u32) inl(other_ir);
+
+ /* Clear the Interrupt, Error bits on the IOC4 */
+ if (intr_reg & 0x03) {
+ outl(0x03, other_ir);
+ intr_reg = (u32) inl(other_ir);
+ }
+ }
+ }
+
+ return reg;
+}
+
+/* Creates a dma map for the scatter-gather list entries */
+static void __devinit
+ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
+{
+ int num_ports = sizeof (ioc4_dma_regs_t);
+
+ printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name,
+ dma_base, dma_base + num_ports - 1);
+
+ if (!request_region(dma_base, num_ports, hwif->name)) {
+ printk(KERN_ERR
+ "%s(%s) -- ERROR, Addresses 0x%p to 0x%p "
+ "ALREADY in use\n",
+ __FUNCTION__, hwif->name, (void *) dma_base,
+ (void *) dma_base + num_ports - 1);
+ goto dma_alloc_failure;
+ }
+
+ hwif->dma_base = dma_base;
+ hwif->dmatable_cpu = pci_alloc_consistent(hwif->pci_dev,
+ IOC4_PRD_ENTRIES * IOC4_PRD_BYTES,
+ &hwif->dmatable_dma);
+
+ if (!hwif->dmatable_cpu)
+ goto dma_alloc_failure;
+
+ hwif->sg_max_nents = IOC4_PRD_ENTRIES;
+
+ hwif->dma_base2 = (unsigned long)
+ pci_alloc_consistent(hwif->pci_dev,
+ IOC4_IDE_CACHELINE_SIZE,
+ (dma_addr_t *) &(hwif->dma_status));
+
+ if (!hwif->dma_base2)
+ goto dma_base2alloc_failure;
+
+ return;
+
+dma_base2alloc_failure:
+ pci_free_consistent(hwif->pci_dev,
+ IOC4_PRD_ENTRIES * IOC4_PRD_BYTES,
+ hwif->dmatable_cpu, hwif->dmatable_dma);
+ printk(KERN_INFO
+ "%s() -- Error! Unable to allocate DMA Maps for drive %s\n",
+ __FUNCTION__, hwif->name);
+ printk(KERN_INFO
+ "Changing from DMA to PIO mode for Drive %s\n", hwif->name);
+
+dma_alloc_failure:
+ /* Disable DMA because we couldnot allocate any DMA maps */
+ hwif->autodma = 0;
+ hwif->atapi_dma = 0;
+}
+
+/* Initializes the IOC4 DMA Engine */
+static void
+sgiioc4_configure_for_dma(int dma_direction, ide_drive_t * drive)
+{
+ u32 ioc4_dma;
+ ide_hwif_t *hwif = HWIF(drive);
+ u64 dma_base = hwif->dma_base;
+ u32 dma_addr, ending_dma_addr;
+
+ ioc4_dma = hwif->INL(dma_base + IOC4_DMA_CTRL * 4);
+
+ if (ioc4_dma & IOC4_S_DMA_ACTIVE) {
+ printk(KERN_WARNING
+ "%s(%s):Warning!! DMA from previous transfer was still active\n",
+ __FUNCTION__, drive->name);
+ hwif->OUTL(IOC4_S_DMA_STOP, dma_base + IOC4_DMA_CTRL * 4);
+ ioc4_dma = sgiioc4_ide_dma_stop(hwif, dma_base);
+
+ if (ioc4_dma & IOC4_S_DMA_STOP)
+ printk(KERN_ERR
+ "%s(%s) : IOC4 Dma STOP bit is still 1\n",
+ __FUNCTION__, drive->name);
+ }
+
+ ioc4_dma = hwif->INL(dma_base + IOC4_DMA_CTRL * 4);
+ if (ioc4_dma & IOC4_S_DMA_ERROR) {
+ printk(KERN_WARNING
+ "%s(%s) : Warning!! - DMA Error during Previous"
+ " transfer | status 0x%x\n",
+ __FUNCTION__, drive->name, ioc4_dma);
+ hwif->OUTL(IOC4_S_DMA_STOP, dma_base + IOC4_DMA_CTRL * 4);
+ ioc4_dma = sgiioc4_ide_dma_stop(hwif, dma_base);
+
+ if (ioc4_dma & IOC4_S_DMA_STOP)
+ printk(KERN_ERR
+ "%s(%s) : IOC4 DMA STOP bit is still 1\n",
+ __FUNCTION__, drive->name);
+ }
+
+ /* Address of the Scatter Gather List */
+ dma_addr = cpu_to_le32(hwif->dmatable_dma);
+ hwif->OUTL(dma_addr, dma_base + IOC4_DMA_PTR_L * 4);
+
+ /* Address of the Ending DMA */
+ memset((unsigned int *) hwif->dma_base2, 0, IOC4_IDE_CACHELINE_SIZE);
+ ending_dma_addr = cpu_to_le32(hwif->dma_status);
+ hwif->OUTL(ending_dma_addr, dma_base + IOC4_DMA_END_ADDR * 4);
+
+ hwif->OUTL(dma_direction, dma_base + IOC4_DMA_CTRL * 4);
+ drive->waiting_for_dma = 1;
+}
+
+/* IOC4 Scatter Gather list Format */
+/* 128 Bit entries to support 64 bit addresses in the future */
+/* The Scatter Gather list Entry should be in the BIG-ENDIAN Format */
+/* --------------------------------------------------------------------- */
+/* | Upper 32 bits - Zero | Lower 32 bits- address | */
+/* --------------------------------------------------------------------- */
+/* | Upper 32 bits - Zero |EOL| 15 unused | 16 Bit Length| */
+/* --------------------------------------------------------------------- */
+/* Creates the scatter gather list, DMA Table */
+static unsigned int
+sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned int *table = hwif->dmatable_cpu;
+ unsigned int count = 0, i = 1;
+ struct scatterlist *sg;
+
+ hwif->sg_nents = i = ide_build_sglist(drive, rq);
+
+ if (!i)
+ return 0; /* sglist of length Zero */
+
+ sg = hwif->sg_table;
+ while (i && sg_dma_len(sg)) {
+ dma_addr_t cur_addr;
+ int cur_len;
+ cur_addr = sg_dma_address(sg);
+ cur_len = sg_dma_len(sg);
+
+ while (cur_len) {
+ if (count++ >= IOC4_PRD_ENTRIES) {
+ printk(KERN_WARNING
+ "%s: DMA table too small\n",
+ drive->name);
+ goto use_pio_instead;
+ } else {
+ u32 xcount, bcount =
+ 0x10000 - (cur_addr & 0xffff);
+
+ if (bcount > cur_len)
+ bcount = cur_len;
+
+ /* put the addr, length in
+ * the IOC4 dma-table format */
+ *table = 0x0;
+ table++;
+ *table = cpu_to_be32(cur_addr);
+ table++;
+ *table = 0x0;
+ table++;
+
+ xcount = bcount & 0xffff;
+ *table = cpu_to_be32(xcount);
+ table++;
+
+ cur_addr += bcount;
+ cur_len -= bcount;
+ }
+ }
+
+ sg++;
+ i--;
+ }
+
+ if (count) {
+ table--;
+ *table |= cpu_to_be32(0x80000000);
+ return count;
+ }
+
+use_pio_instead:
+ pci_unmap_sg(hwif->pci_dev, hwif->sg_table, hwif->sg_nents,
+ hwif->sg_dma_direction);
+
+ return 0; /* revert to PIO for this request */
+}
+
+static int sgiioc4_ide_dma_setup(ide_drive_t *drive)
+{
+ struct request *rq = HWGROUP(drive)->rq;
+ unsigned int count = 0;
+ int ddir;
+
+ if (rq_data_dir(rq))
+ ddir = PCI_DMA_TODEVICE;
+ else
+ ddir = PCI_DMA_FROMDEVICE;
+
+ if (!(count = sgiioc4_build_dma_table(drive, rq, ddir))) {
+ /* try PIO instead of DMA */
+ ide_map_sg(drive, rq);
+ return 1;
+ }
+
+ if (rq_data_dir(rq))
+ /* Writes TO the IOC4 FROM Main Memory */
+ ddir = IOC4_DMA_READ;
+ else
+ /* Writes FROM the IOC4 TO Main Memory */
+ ddir = IOC4_DMA_WRITE;
+
+ sgiioc4_configure_for_dma(ddir, drive);
+
+ return 0;
+}
+
+static void __devinit
+ide_init_sgiioc4(ide_hwif_t * hwif)
+{
+ hwif->mmio = 2;
+ hwif->autodma = 1;
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
+ hwif->mwdma_mask = 0x2; /* Multimode-2 DMA */
+ hwif->swdma_mask = 0x2;
+ hwif->tuneproc = NULL; /* Sets timing for PIO mode */
+ hwif->speedproc = NULL; /* Sets timing for DMA &/or PIO modes */
+ hwif->selectproc = NULL;/* Use the default routine to select drive */
+ hwif->reset_poll = NULL;/* No HBA specific reset_poll needed */
+ hwif->pre_reset = NULL; /* No HBA specific pre_set needed */
+ hwif->resetproc = &sgiioc4_resetproc;/* Reset DMA engine,
+ clear interrupts */
+ hwif->intrproc = NULL; /* Enable or Disable interrupt from drive */
+ hwif->maskproc = &sgiioc4_maskproc; /* Mask on/off NIEN register */
+ hwif->quirkproc = NULL;
+ hwif->busproc = NULL;
+
+ hwif->dma_setup = &sgiioc4_ide_dma_setup;
+ hwif->dma_start = &sgiioc4_ide_dma_start;
+ hwif->ide_dma_end = &sgiioc4_ide_dma_end;
+ hwif->ide_dma_check = &sgiioc4_ide_dma_check;
+ hwif->ide_dma_on = &sgiioc4_ide_dma_on;
+ hwif->ide_dma_off_quietly = &sgiioc4_ide_dma_off_quietly;
+ hwif->ide_dma_test_irq = &sgiioc4_ide_dma_test_irq;
+ hwif->ide_dma_host_on = &sgiioc4_ide_dma_host_on;
+ hwif->ide_dma_host_off = &sgiioc4_ide_dma_host_off;
+ hwif->ide_dma_lostirq = &sgiioc4_ide_dma_lostirq;
+ hwif->ide_dma_timeout = &__ide_dma_timeout;
+ hwif->INB = &sgiioc4_INB;
+}
+
+static int __devinit
+sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
+{
+ unsigned long base, ctl, dma_base, irqport;
+ ide_hwif_t *hwif;
+ int h;
+
+ for (h = 0; h < MAX_HWIFS; ++h) {
+ hwif = &ide_hwifs[h];
+ /* Find an empty HWIF */
+ if (hwif->chipset == ide_unknown)
+ break;
+ }
+
+ /* Get the CmdBlk and CtrlBlk Base Registers */
+ base = pci_resource_start(dev, 0) + IOC4_CMD_OFFSET;
+ ctl = pci_resource_start(dev, 0) + IOC4_CTRL_OFFSET;
+ irqport = pci_resource_start(dev, 0) + IOC4_INTR_OFFSET;
+ dma_base = pci_resource_start(dev, 0) + IOC4_DMA_OFFSET;
+
+ if (!request_region(base, IOC4_CMD_CTL_BLK_SIZE, hwif->name)) {
+ printk(KERN_ERR
+ "%s : %s -- ERROR, Port Addresses "
+ "0x%p to 0x%p ALREADY in use\n",
+ __FUNCTION__, hwif->name, (void *) base,
+ (void *) base + IOC4_CMD_CTL_BLK_SIZE);
+ return -ENOMEM;
+ }
+
+ if (hwif->io_ports[IDE_DATA_OFFSET] != base) {
+ /* Initialize the IO registers */
+ sgiioc4_init_hwif_ports(&hwif->hw, base, ctl, irqport);
+ memcpy(hwif->io_ports, hwif->hw.io_ports,
+ sizeof (hwif->io_ports));
+ hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
+ }
+
+ hwif->irq = dev->irq;
+ hwif->chipset = ide_pci;
+ hwif->pci_dev = dev;
+ hwif->channel = 0; /* Single Channel chip */
+ hwif->cds = (struct ide_pci_device_s *) d;
+ hwif->gendev.parent = &dev->dev;/* setup proper ancestral information */
+
+ /* Initializing chipset IRQ Registers */
+ hwif->OUTL(0x03, irqport + IOC4_INTR_SET * 4);
+
+ ide_init_sgiioc4(hwif);
+
+ if (dma_base)
+ ide_dma_sgiioc4(hwif, dma_base);
+ else
+ printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n",
+ hwif->name, d->name);
+
+ if (probe_hwif_init(hwif))
+ return -EIO;
+
+ /* Create /proc/ide entries */
+ create_proc_ide_interfaces();
+
+ return 0;
+}
+
+static unsigned int __devinit
+pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d)
+{
+ unsigned int class_rev;
+ int ret;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+ printk(KERN_INFO "%s: IDE controller at PCI slot %s, revision %d\n",
+ d->name, pci_name(dev), class_rev);
+ if (class_rev < IOC4_SUPPORTED_FIRMWARE_REV) {
+ printk(KERN_ERR "Skipping %s IDE controller in slot %s: "
+ "firmware is obsolete - please upgrade to revision"
+ "46 or higher\n", d->name, pci_name(dev));
+ ret = -EAGAIN;
+ goto out;
+ }
+ ret = sgiioc4_ide_setup_pci_device(dev, d);
+out:
+ return ret;
+}
+
+static ide_pci_device_t sgiioc4_chipsets[] __devinitdata = {
+ {
+ /* Channel 0 */
+ .name = "SGIIOC4",
+ .init_hwif = ide_init_sgiioc4,
+ .init_dma = ide_dma_sgiioc4,
+ .channels = 1,
+ .autodma = AUTODMA,
+ /* SGI IOC4 doesn't have enablebits. */
+ .bootable = ON_BOARD,
+ }
+};
+
+int
+ioc4_ide_attach_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return pci_init_sgiioc4(dev, &sgiioc4_chipsets[id->driver_data]);
+}
+
+
+MODULE_AUTHOR("Aniket Malatpure - Silicon Graphics Inc. (SGI)");
+MODULE_DESCRIPTION("IDE PCI driver module for SGI IOC4 Base-IO Card");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(ioc4_ide_attach_one);
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
new file mode 100644
index 0000000..2b9961b
--- /dev/null
+++ b/drivers/ide/pci/siimage.c
@@ -0,0 +1,1133 @@
+/*
+ * 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 available under NDA only
+ *
+ *
+ * FAQ Items:
+ * If you are using Marvell SATA-IDE adapters with Maxtor drives
+ * ensure the system is set up for ATA100/UDMA5 not UDMA6.
+ *
+ * If you are using WD drives with SATA bridges you must set the
+ * drive to "Single". "Master" will hang
+ *
+ * If you have strange problems with nVidia chipset systems please
+ * see the SI support documentation and update your system BIOS
+ * if neccessary
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#undef SIIMAGE_VIRTUAL_DMAPIO
+#undef SIIMAGE_LARGE_DMA
+
+/**
+ * pdev_is_sata - check if device is SATA
+ * @pdev: PCI device to check
+ *
+ * Returns true if this is a SATA controller
+ */
+
+static int pdev_is_sata(struct pci_dev *pdev)
+{
+ switch(pdev->device)
+ {
+ case PCI_DEVICE_ID_SII_3112:
+ case PCI_DEVICE_ID_SII_1210SA:
+ return 1;
+ case PCI_DEVICE_ID_SII_680:
+ return 0;
+ }
+ BUG();
+ return 0;
+}
+
+/**
+ * is_sata - check if hwif is SATA
+ * @hwif: interface to check
+ *
+ * Returns true if this is a SATA controller
+ */
+
+static inline int is_sata(ide_hwif_t *hwif)
+{
+ return pdev_is_sata(hwif->pci_dev);
+}
+
+/**
+ * siimage_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 siimage_selreg(ide_hwif_t *hwif, int r)
+{
+ unsigned long base = (unsigned long)hwif->hwif_data;
+ base += 0xA0 + r;
+ if(hwif->mmio)
+ base += (hwif->channel << 6);
+ else
+ base += (hwif->channel << 4);
+ return base;
+}
+
+/**
+ * siimage_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 inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned long base = (unsigned long)hwif->hwif_data;
+ base += 0xA0 + r;
+ if(hwif->mmio)
+ base += (hwif->channel << 6);
+ else
+ base += (hwif->channel << 4);
+ base |= drive->select.b.unit << drive->select.b.unit;
+ return base;
+}
+
+/**
+ * siimage_ratemask - Compute available modes
+ * @drive: IDE drive
+ *
+ * Compute the available speeds for the devices on the interface.
+ * For the CMD680 this depends on the clocking mode (scsc), for the
+ * SI3312 SATA controller life is a bit simpler. Enforce UDMA33
+ * as a limit if there is no 80pin cable present.
+ */
+
+static byte siimage_ratemask (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 mode = 0, scsc = 0;
+ unsigned long base = (unsigned long) hwif->hwif_data;
+
+ if (hwif->mmio)
+ scsc = hwif->INB(base + 0x4A);
+ else
+ pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
+
+ if(is_sata(hwif))
+ {
+ if(strstr(drive->id->model, "Maxtor"))
+ return 3;
+ return 4;
+ }
+
+ if ((scsc & 0x30) == 0x10) /* 133 */
+ mode = 4;
+ else if ((scsc & 0x30) == 0x20) /* 2xPCI */
+ mode = 4;
+ else if ((scsc & 0x30) == 0x00) /* 100 */
+ mode = 3;
+ else /* Disabled ? */
+ BUG();
+
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+/**
+ * siimage_taskfile_timing - turn timing data to a mode
+ * @hwif: interface to query
+ *
+ * Read the timing data for the interface and return the
+ * mode that is being used.
+ */
+
+static byte siimage_taskfile_timing (ide_hwif_t *hwif)
+{
+ u16 timing = 0x328a;
+ unsigned long addr = siimage_selreg(hwif, 2);
+
+ if (hwif->mmio)
+ timing = hwif->INW(addr);
+ else
+ pci_read_config_word(hwif->pci_dev, addr, &timing);
+
+ switch (timing) {
+ case 0x10c1: return 4;
+ case 0x10c3: return 3;
+ case 0x1104:
+ case 0x1281: return 2;
+ case 0x2283: return 1;
+ case 0x328a:
+ default: return 0;
+ }
+}
+
+/**
+ * simmage_tuneproc - tune a drive
+ * @drive: drive to tune
+ * @mode_wanted: the target operating mode
+ *
+ * Load the timing settings for this device mode into the
+ * controller. If we are in PIO mode 3 or 4 turn on IORDY
+ * monitoring (bit 9). The TF timing is bits 31:16
+ */
+
+static void siimage_tuneproc (ide_drive_t *drive, byte mode_wanted)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u32 speedt = 0;
+ u16 speedp = 0;
+ unsigned long addr = siimage_seldev(drive, 0x04);
+ unsigned long tfaddr = siimage_selreg(hwif, 0x02);
+
+ /* cheat for now and use the docs */
+ switch(mode_wanted) {
+ case 4:
+ speedp = 0x10c1;
+ speedt = 0x10c1;
+ break;
+ case 3:
+ speedp = 0x10C3;
+ speedt = 0x10C3;
+ break;
+ case 2:
+ speedp = 0x1104;
+ speedt = 0x1281;
+ break;
+ case 1:
+ speedp = 0x2283;
+ speedt = 0x1281;
+ break;
+ case 0:
+ default:
+ speedp = 0x328A;
+ speedt = 0x328A;
+ break;
+ }
+ if (hwif->mmio)
+ {
+ hwif->OUTW(speedt, addr);
+ hwif->OUTW(speedp, tfaddr);
+ /* Now set up IORDY */
+ if(mode_wanted == 3 || mode_wanted == 4)
+ hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
+ else
+ hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
+ }
+ else
+ {
+ pci_write_config_word(hwif->pci_dev, addr, speedp);
+ pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
+ pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp);
+ speedp &= ~0x200;
+ /* Set IORDY for mode 3 or 4 */
+ if(mode_wanted == 3 || mode_wanted == 4)
+ speedp |= 0x200;
+ pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
+ }
+}
+
+/**
+ * config_siimage_chipset_for_pio - set drive timings
+ * @drive: drive to tune
+ * @speed we want
+ *
+ * Compute the best pio mode we can for a given device. Also honour
+ * the timings for the driver when dealing with mixed devices. Some
+ * of this is ugly but its all wrapped up here
+ *
+ * The SI680 can also do VDMA - we need to start using that
+ *
+ * FIXME: we use the BIOS channel timings to avoid driving the task
+ * files too fast at the disk. We need to compute the master/slave
+ * drive PIO mode properly so that we can up the speed on a hotplug
+ * system.
+ */
+
+static void config_siimage_chipset_for_pio (ide_drive_t *drive, byte set_speed)
+{
+ u8 channel_timings = siimage_taskfile_timing(HWIF(drive));
+ u8 speed = 0, set_pio = ide_get_best_pio_mode(drive, 4, 5, NULL);
+
+ /* WARNING PIO timing mess is going to happen b/w devices, argh */
+ if ((channel_timings != set_pio) && (set_pio > channel_timings))
+ set_pio = channel_timings;
+
+ siimage_tuneproc(drive, set_pio);
+ speed = XFER_PIO_0 + set_pio;
+ if (set_speed)
+ (void) ide_config_drive_speed(drive, speed);
+}
+
+static void config_chipset_for_pio (ide_drive_t *drive, byte set_speed)
+{
+ config_siimage_chipset_for_pio(drive, set_speed);
+}
+
+/**
+ * siimage_tune_chipset - set controller timings
+ * @drive: Drive to set up
+ * @xferspeed: speed we want to achieve
+ *
+ * Tune the SII chipset for the desired mode. If we can't achieve
+ * the desired mode then tune for a lower one, but ultimately
+ * make the thing work.
+ */
+
+static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
+{
+ u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
+ u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
+ u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
+
+ ide_hwif_t *hwif = HWIF(drive);
+ u16 ultra = 0, multi = 0;
+ u8 mode = 0, unit = drive->select.b.unit;
+ u8 speed = ide_rate_filter(siimage_ratemask(drive), xferspeed);
+ unsigned long base = (unsigned long)hwif->hwif_data;
+ u8 scsc = 0, addr_mask = ((hwif->channel) ?
+ ((hwif->mmio) ? 0xF4 : 0x84) :
+ ((hwif->mmio) ? 0xB4 : 0x80));
+
+ unsigned long ma = siimage_seldev(drive, 0x08);
+ unsigned long ua = siimage_seldev(drive, 0x0C);
+
+ if (hwif->mmio) {
+ scsc = hwif->INB(base + 0x4A);
+ mode = hwif->INB(base + addr_mask);
+ multi = hwif->INW(ma);
+ ultra = hwif->INW(ua);
+ } else {
+ pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
+ pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
+ pci_read_config_word(hwif->pci_dev, ma, &multi);
+ pci_read_config_word(hwif->pci_dev, ua, &ultra);
+ }
+
+ mode &= ~((unit) ? 0x30 : 0x03);
+ ultra &= ~0x3F;
+ scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
+
+ scsc = is_sata(hwif) ? 1 : scsc;
+
+ switch(speed) {
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ siimage_tuneproc(drive, (speed - XFER_PIO_0));
+ mode |= ((unit) ? 0x10 : 0x01);
+ break;
+ case XFER_MW_DMA_2:
+ case XFER_MW_DMA_1:
+ case XFER_MW_DMA_0:
+ multi = dma[speed - XFER_MW_DMA_0];
+ mode |= ((unit) ? 0x20 : 0x02);
+ config_siimage_chipset_for_pio(drive, 0);
+ break;
+ case XFER_UDMA_6:
+ case XFER_UDMA_5:
+ case XFER_UDMA_4:
+ case XFER_UDMA_3:
+ case XFER_UDMA_2:
+ case XFER_UDMA_1:
+ case XFER_UDMA_0:
+ multi = dma[2];
+ ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) :
+ (ultra5[speed - XFER_UDMA_0]));
+ mode |= ((unit) ? 0x30 : 0x03);
+ config_siimage_chipset_for_pio(drive, 0);
+ break;
+ default:
+ return 1;
+ }
+
+ if (hwif->mmio) {
+ hwif->OUTB(mode, base + addr_mask);
+ hwif->OUTW(multi, ma);
+ hwif->OUTW(ultra, ua);
+ } else {
+ pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
+ pci_write_config_word(hwif->pci_dev, ma, multi);
+ pci_write_config_word(hwif->pci_dev, ua, ultra);
+ }
+ return (ide_config_drive_speed(drive, speed));
+}
+
+/**
+ * config_chipset_for_dma - configure for DMA
+ * @drive: drive to configure
+ *
+ * Called by the IDE layer when it wants the timings set up.
+ * For the CMD680 we also need to set up the PIO timings and
+ * enable DMA.
+ */
+
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, siimage_ratemask(drive));
+
+ config_chipset_for_pio(drive, !speed);
+
+ if (!speed)
+ return 0;
+
+ if (ide_set_xfer_rate(drive, speed))
+ return 0;
+
+ if (!drive->init_speed)
+ drive->init_speed = speed;
+
+ return ide_dma_enable(drive);
+}
+
+/**
+ * siimage_configure_drive_for_dma - set up for DMA transfers
+ * @drive: drive we are going to set up
+ *
+ * Set up the drive for DMA, tune the controller and drive as
+ * required. If the drive isn't suitable for DMA or we hit
+ * other problems then we will drop down to PIO and set up
+ * PIO appropriately
+ */
+
+static int siimage_config_drive_for_dma (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ if ((id->capability & 1) != 0 && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ config_chipset_for_pio(drive, 1);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+/* returns 1 if dma irq issued, 0 otherwise */
+static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 dma_altstat = 0;
+ unsigned long addr = siimage_selreg(hwif, 1);
+
+ /* return 1 if INTR asserted */
+ if ((hwif->INB(hwif->dma_status) & 4) == 4)
+ return 1;
+
+ /* return 1 if Device INTR asserted */
+ pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat);
+ if (dma_altstat & 8)
+ return 0; //return 1;
+ return 0;
+}
+
+#if 0
+/**
+ * siimage_mmio_ide_dma_count - DMA bytes done
+ * @drive
+ *
+ * If we are doing VDMA the CMD680 requires a little bit
+ * of more careful handling and we have to read the counts
+ * off ourselves. For non VDMA life is normal.
+ */
+
+static int siimage_mmio_ide_dma_count (ide_drive_t *drive)
+{
+#ifdef SIIMAGE_VIRTUAL_DMAPIO
+ struct request *rq = HWGROUP(drive)->rq;
+ ide_hwif_t *hwif = HWIF(drive);
+ u32 count = (rq->nr_sectors * SECTOR_SIZE);
+ u32 rcount = 0;
+ unsigned long addr = siimage_selreg(hwif, 0x1C);
+
+ hwif->OUTL(count, addr);
+ rcount = hwif->INL(addr);
+
+ printk("\n%s: count = %d, rcount = %d, nr_sectors = %lu\n",
+ drive->name, count, rcount, rq->nr_sectors);
+
+#endif /* SIIMAGE_VIRTUAL_DMAPIO */
+ return __ide_dma_count(drive);
+}
+#endif
+
+/**
+ * siimage_mmio_ide_dma_test_irq - check we caused an IRQ
+ * @drive: drive we are testing
+ *
+ * Check if we caused an IDE DMA interrupt. We may also have caused
+ * SATA status interrupts, if so we clean them up and continue.
+ */
+
+static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned long base = (unsigned long)hwif->hwif_data;
+ unsigned long addr = siimage_selreg(hwif, 0x1);
+
+ if (SATA_ERROR_REG) {
+ u32 ext_stat = hwif->INL(base + 0x10);
+ u8 watchdog = 0;
+ if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
+ u32 sata_error = hwif->INL(SATA_ERROR_REG);
+ hwif->OUTL(sata_error, SATA_ERROR_REG);
+ watchdog = (sata_error & 0x00680000) ? 1 : 0;
+#if 1
+ printk(KERN_WARNING "%s: sata_error = 0x%08x, "
+ "watchdog = %d, %s\n",
+ drive->name, sata_error, watchdog,
+ __FUNCTION__);
+#endif
+
+ } else {
+ watchdog = (ext_stat & 0x8000) ? 1 : 0;
+ }
+ ext_stat >>= 16;
+
+ if (!(ext_stat & 0x0404) && !watchdog)
+ return 0;
+ }
+
+ /* return 1 if INTR asserted */
+ if ((hwif->INB(hwif->dma_status) & 0x04) == 0x04)
+ return 1;
+
+ /* return 1 if Device INTR asserted */
+ if ((hwif->INB(addr) & 8) == 8)
+ return 0; //return 1;
+
+ return 0;
+}
+
+/**
+ * siimage_busproc - bus isolation ioctl
+ * @drive: drive to isolate/restore
+ * @state: bus state to set
+ *
+ * Used by the SII3112 to handle bus isolation. As this is a
+ * SATA controller the work required is quite limited, we
+ * just have to clean up the statistics
+ */
+
+static int siimage_busproc (ide_drive_t * drive, int state)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u32 stat_config = 0;
+ unsigned long addr = siimage_selreg(hwif, 0);
+
+ if (hwif->mmio) {
+ stat_config = hwif->INL(addr);
+ } else
+ pci_read_config_dword(hwif->pci_dev, addr, &stat_config);
+
+ switch (state) {
+ case BUSSTATE_ON:
+ hwif->drives[0].failures = 0;
+ hwif->drives[1].failures = 0;
+ break;
+ case BUSSTATE_OFF:
+ hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
+ hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
+ break;
+ case BUSSTATE_TRISTATE:
+ hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
+ hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+ hwif->bus_state = state;
+ return 0;
+}
+
+/**
+ * siimage_reset_poll - wait for sata reset
+ * @drive: drive we are resetting
+ *
+ * Poll the SATA phy and see whether it has come back from the dead
+ * yet.
+ */
+
+static int siimage_reset_poll (ide_drive_t *drive)
+{
+ if (SATA_STATUS_REG) {
+ ide_hwif_t *hwif = HWIF(drive);
+
+ if ((hwif->INL(SATA_STATUS_REG) & 0x03) != 0x03) {
+ printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
+ hwif->name, hwif->INL(SATA_STATUS_REG));
+ HWGROUP(drive)->polling = 0;
+ return ide_started;
+ }
+ return 0;
+ } else {
+ return 0;
+ }
+}
+
+/**
+ * siimage_pre_reset - reset hook
+ * @drive: IDE device being reset
+ *
+ * For the SATA devices we need to handle recalibration/geometry
+ * differently
+ */
+
+static void siimage_pre_reset (ide_drive_t *drive)
+{
+ if (drive->media != ide_disk)
+ return;
+
+ if (is_sata(HWIF(drive)))
+ {
+ drive->special.b.set_geometry = 0;
+ drive->special.b.recalibrate = 0;
+ }
+}
+
+/**
+ * siimage_reset - reset a device on an siimage controller
+ * @drive: drive to reset
+ *
+ * Perform a controller level reset fo the device. For
+ * SATA we must also check the PHY.
+ */
+
+static void siimage_reset (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u8 reset = 0;
+ unsigned long addr = siimage_selreg(hwif, 0);
+
+ if (hwif->mmio) {
+ reset = hwif->INB(addr);
+ hwif->OUTB((reset|0x03), addr);
+ /* FIXME:posting */
+ udelay(25);
+ hwif->OUTB(reset, addr);
+ (void) hwif->INB(addr);
+ } else {
+ pci_read_config_byte(hwif->pci_dev, addr, &reset);
+ pci_write_config_byte(hwif->pci_dev, addr, reset|0x03);
+ udelay(25);
+ pci_write_config_byte(hwif->pci_dev, addr, reset);
+ pci_read_config_byte(hwif->pci_dev, addr, &reset);
+ }
+
+ if (SATA_STATUS_REG) {
+ u32 sata_stat = hwif->INL(SATA_STATUS_REG);
+ printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n",
+ hwif->name, sata_stat, __FUNCTION__);
+ if (!(sata_stat)) {
+ printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
+ hwif->name, sata_stat);
+ drive->failures++;
+ }
+ }
+
+}
+
+/**
+ * proc_reports_siimage - add siimage controller to proc
+ * @dev: PCI device
+ * @clocking: SCSC value
+ * @name: controller name
+ *
+ * Report the clocking mode of the controller and add it to
+ * the /proc interface layer
+ */
+
+static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name)
+{
+ if (!pdev_is_sata(dev)) {
+ printk(KERN_INFO "%s: BASE CLOCK ", name);
+ clocking &= 0x03;
+ switch (clocking) {
+ case 0x03: printk("DISABLED!\n"); break;
+ case 0x02: printk("== 2X PCI\n"); break;
+ case 0x01: printk("== 133\n"); break;
+ case 0x00: printk("== 100\n"); break;
+ }
+ }
+}
+
+/**
+ * setup_mmio_siimage - switch an SI controller into MMIO
+ * @dev: PCI device we are configuring
+ * @name: device name
+ *
+ * Attempt to put the device into mmio mode. There are some slight
+ * complications here with certain systems where the mmio bar isnt
+ * mapped so we have to be sure we can fall back to I/O.
+ */
+
+static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
+{
+ unsigned long bar5 = pci_resource_start(dev, 5);
+ unsigned long barsize = pci_resource_len(dev, 5);
+ u8 tmpbyte = 0;
+ void __iomem *ioaddr;
+
+ /*
+ * Drop back to PIO if we can't map the mmio. Some
+ * systems seem to get terminally confused in the PCI
+ * spaces.
+ */
+
+ if(!request_mem_region(bar5, barsize, name))
+ {
+ printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n");
+ return 0;
+ }
+
+ ioaddr = ioremap(bar5, barsize);
+
+ if (ioaddr == NULL)
+ {
+ release_mem_region(bar5, barsize);
+ return 0;
+ }
+
+ pci_set_master(dev);
+ pci_set_drvdata(dev, (void *) ioaddr);
+
+ if (pdev_is_sata(dev)) {
+ writel(0, ioaddr + 0x148);
+ writel(0, ioaddr + 0x1C8);
+ }
+
+ writeb(0, ioaddr + 0xB4);
+ writeb(0, ioaddr + 0xF4);
+ tmpbyte = readb(ioaddr + 0x4A);
+
+ switch(tmpbyte & 0x30) {
+ case 0x00:
+ /* In 100 MHz clocking, try and switch to 133 */
+ writeb(tmpbyte|0x10, ioaddr + 0x4A);
+ break;
+ case 0x10:
+ /* On 133Mhz clocking */
+ break;
+ case 0x20:
+ /* On PCIx2 clocking */
+ break;
+ case 0x30:
+ /* Clocking is disabled */
+ /* 133 clock attempt to force it on */
+ writeb(tmpbyte & ~0x20, ioaddr + 0x4A);
+ break;
+ }
+
+ writeb( 0x72, ioaddr + 0xA1);
+ writew( 0x328A, ioaddr + 0xA2);
+ writel(0x62DD62DD, ioaddr + 0xA4);
+ writel(0x43924392, ioaddr + 0xA8);
+ writel(0x40094009, ioaddr + 0xAC);
+ writeb( 0x72, ioaddr + 0xE1);
+ writew( 0x328A, ioaddr + 0xE2);
+ writel(0x62DD62DD, ioaddr + 0xE4);
+ writel(0x43924392, ioaddr + 0xE8);
+ writel(0x40094009, ioaddr + 0xEC);
+
+ if (pdev_is_sata(dev)) {
+ writel(0xFFFF0000, ioaddr + 0x108);
+ writel(0xFFFF0000, ioaddr + 0x188);
+ writel(0x00680000, ioaddr + 0x148);
+ writel(0x00680000, ioaddr + 0x1C8);
+ }
+
+ tmpbyte = readb(ioaddr + 0x4A);
+
+ proc_reports_siimage(dev, (tmpbyte>>4), name);
+ return 1;
+}
+
+/**
+ * init_chipset_siimage - set up an SI device
+ * @dev: PCI device
+ * @name: device name
+ *
+ * Perform the initial PCI set up for this device. Attempt to switch
+ * to 133MHz clocking if the system isn't already set up to do it.
+ */
+
+static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const char *name)
+{
+ u32 class_rev = 0;
+ u8 tmpbyte = 0;
+ u8 BA5_EN = 0;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255);
+
+ pci_read_config_byte(dev, 0x8A, &BA5_EN);
+ if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) {
+ if (setup_mmio_siimage(dev, name)) {
+ return 0;
+ }
+ }
+
+ pci_write_config_byte(dev, 0x80, 0x00);
+ pci_write_config_byte(dev, 0x84, 0x00);
+ pci_read_config_byte(dev, 0x8A, &tmpbyte);
+ switch(tmpbyte & 0x30) {
+ case 0x00:
+ /* 133 clock attempt to force it on */
+ pci_write_config_byte(dev, 0x8A, tmpbyte|0x10);
+ case 0x30:
+ /* if clocking is disabled */
+ /* 133 clock attempt to force it on */
+ pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20);
+ case 0x10:
+ /* 133 already */
+ break;
+ case 0x20:
+ /* BIOS set PCI x2 clocking */
+ break;
+ }
+
+ pci_read_config_byte(dev, 0x8A, &tmpbyte);
+
+ pci_write_config_byte(dev, 0xA1, 0x72);
+ pci_write_config_word(dev, 0xA2, 0x328A);
+ pci_write_config_dword(dev, 0xA4, 0x62DD62DD);
+ pci_write_config_dword(dev, 0xA8, 0x43924392);
+ pci_write_config_dword(dev, 0xAC, 0x40094009);
+ pci_write_config_byte(dev, 0xB1, 0x72);
+ pci_write_config_word(dev, 0xB2, 0x328A);
+ pci_write_config_dword(dev, 0xB4, 0x62DD62DD);
+ pci_write_config_dword(dev, 0xB8, 0x43924392);
+ pci_write_config_dword(dev, 0xBC, 0x40094009);
+
+ proc_reports_siimage(dev, (tmpbyte>>4), name);
+ return 0;
+}
+
+/**
+ * init_mmio_iops_siimage - set up the iops for MMIO
+ * @hwif: interface to set up
+ *
+ * The basic setup here is fairly simple, we can use standard MMIO
+ * operations. However we do have to set the taskfile register offsets
+ * by hand as there isnt a standard defined layout for them this
+ * time.
+ *
+ * The hardware supports buffered taskfiles and also some rather nice
+ * extended PRD tables. Unfortunately right now we don't.
+ */
+
+static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ void *addr = pci_get_drvdata(dev);
+ u8 ch = hwif->channel;
+ hw_regs_t hw;
+ unsigned long base;
+
+ /*
+ * Fill in the basic HWIF bits
+ */
+
+ default_hwif_mmiops(hwif);
+ hwif->hwif_data = addr;
+
+ /*
+ * Now set up the hw. We have to do this ourselves as
+ * the MMIO layout isnt the same as the the standard port
+ * based I/O
+ */
+
+ memset(&hw, 0, sizeof(hw_regs_t));
+
+ base = (unsigned long)addr;
+ if (ch)
+ base += 0xC0;
+ else
+ base += 0x80;
+
+ /*
+ * The buffered task file doesn't have status/control
+ * so we can't currently use it sanely since we want to
+ * use LBA48 mode.
+ */
+// base += 0x10;
+// hwif->no_lba48 = 1;
+
+ hw.io_ports[IDE_DATA_OFFSET] = base;
+ hw.io_ports[IDE_ERROR_OFFSET] = base + 1;
+ hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
+ hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
+ hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
+ hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
+ hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
+ hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
+ hw.io_ports[IDE_CONTROL_OFFSET] = base + 10;
+
+ hw.io_ports[IDE_IRQ_OFFSET] = 0;
+
+ if (pdev_is_sata(dev)) {
+ base = (unsigned long)addr;
+ if (ch)
+ base += 0x80;
+ hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
+ hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
+ hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
+ hwif->sata_misc[SATA_MISC_OFFSET] = base + 0x140;
+ hwif->sata_misc[SATA_PHY_OFFSET] = base + 0x144;
+ hwif->sata_misc[SATA_IEN_OFFSET] = base + 0x148;
+ }
+
+ hw.irq = hwif->pci_dev->irq;
+
+ memcpy(&hwif->hw, &hw, sizeof(hw));
+ memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
+
+ hwif->irq = hw.irq;
+
+ base = (unsigned long) addr;
+
+#ifdef SIIMAGE_LARGE_DMA
+/* Watch the brackets - even Ken and Dennis get some language design wrong */
+ hwif->dma_base = base + (ch ? 0x18 : 0x10);
+ hwif->dma_base2 = base + (ch ? 0x08 : 0x00);
+ hwif->dma_prdtable = hwif->dma_base2 + 4;
+#else /* ! SIIMAGE_LARGE_DMA */
+ hwif->dma_base = base + (ch ? 0x08 : 0x00);
+ hwif->dma_base2 = base + (ch ? 0x18 : 0x10);
+#endif /* SIIMAGE_LARGE_DMA */
+ hwif->mmio = 2;
+}
+
+static int is_dev_seagate_sata(ide_drive_t *drive)
+{
+ const char *s = &drive->id->model[0];
+ unsigned len;
+
+ if (!drive->present)
+ return 0;
+
+ len = strnlen(s, sizeof(drive->id->model));
+
+ if ((len > 4) && (!memcmp(s, "ST", 2))) {
+ if ((!memcmp(s + len - 2, "AS", 2)) ||
+ (!memcmp(s + len - 3, "ASL", 3))) {
+ printk(KERN_INFO "%s: applying pessimistic Seagate "
+ "errata fix\n", drive->name);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/**
+ * siimage_fixup - post probe fixups
+ * @hwif: interface to fix up
+ *
+ * Called after drive probe we use this to decide whether the
+ * Seagate fixup must be applied. This used to be in init_iops but
+ * that can occur before we know what drives are present.
+ */
+
+static void __devinit siimage_fixup(ide_hwif_t *hwif)
+{
+ /* Try and raise the rqsize */
+ if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0]))
+ hwif->rqsize = 128;
+}
+
+/**
+ * init_iops_siimage - set up iops
+ * @hwif: interface to set up
+ *
+ * Do the basic setup for the SIIMAGE hardware interface
+ * and then do the MMIO setup if we can. This is the first
+ * look in we get for setting up the hwif so that we
+ * can get the iops right before using them.
+ */
+
+static void __devinit init_iops_siimage(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ u32 class_rev = 0;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+
+ hwif->hwif_data = NULL;
+
+ /* Pessimal until we finish probing */
+ hwif->rqsize = 15;
+
+ if (pci_get_drvdata(dev) == NULL)
+ return;
+ init_mmio_iops_siimage(hwif);
+}
+
+/**
+ * ata66_siimage - check for 80 pin cable
+ * @hwif: interface to check
+ *
+ * Check for the presence of an ATA66 capable cable on the
+ * interface.
+ */
+
+static unsigned int __devinit ata66_siimage(ide_hwif_t *hwif)
+{
+ unsigned long addr = siimage_selreg(hwif, 0);
+ if (pci_get_drvdata(hwif->pci_dev) == NULL) {
+ u8 ata66 = 0;
+ pci_read_config_byte(hwif->pci_dev, addr, &ata66);
+ return (ata66 & 0x01) ? 1 : 0;
+ }
+
+ return (hwif->INB(addr) & 0x01) ? 1 : 0;
+}
+
+/**
+ * init_hwif_siimage - set up hwif structs
+ * @hwif: interface to set up
+ *
+ * We do the basic set up of the interface structure. The SIIMAGE
+ * requires several custom handlers so we override the default
+ * ide DMA handlers appropriately
+ */
+
+static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
+{
+ hwif->autodma = 0;
+
+ hwif->resetproc = &siimage_reset;
+ hwif->speedproc = &siimage_tune_chipset;
+ hwif->tuneproc = &siimage_tuneproc;
+ hwif->reset_poll = &siimage_reset_poll;
+ hwif->pre_reset = &siimage_pre_reset;
+
+ if(is_sata(hwif))
+ hwif->busproc = &siimage_busproc;
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (!is_sata(hwif))
+ hwif->atapi_dma = 1;
+
+ hwif->ide_dma_check = &siimage_config_drive_for_dma;
+ if (!(hwif->udma_four))
+ hwif->udma_four = ata66_siimage(hwif);
+
+ if (hwif->mmio) {
+ hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
+ } else {
+ hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq;
+ }
+
+ /*
+ * The BIOS often doesn't set up DMA on this controller
+ * so we always do it.
+ */
+
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+#define DECLARE_SII_DEV(name_str) \
+ { \
+ .name = name_str, \
+ .init_chipset = init_chipset_siimage, \
+ .init_iops = init_iops_siimage, \
+ .init_hwif = init_hwif_siimage, \
+ .fixup = siimage_fixup, \
+ .channels = 2, \
+ .autodma = AUTODMA, \
+ .bootable = ON_BOARD, \
+ }
+
+static ide_pci_device_t siimage_chipsets[] __devinitdata = {
+ /* 0 */ DECLARE_SII_DEV("SiI680"),
+ /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"),
+ /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA")
+};
+
+/**
+ * siimage_init_one - pci layer discovery entry
+ * @dev: PCI device
+ * @id: ident table entry
+ *
+ * Called by the PCI code when it finds an SI680 or SI3112 controller.
+ * We then use the IDE PCI generic helper to do most of the work.
+ */
+
+static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &siimage_chipsets[id->driver_data]);
+}
+
+static struct pci_device_id siimage_pci_tbl[] = {
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+#ifdef CONFIG_BLK_DEV_IDE_SATA
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+#endif
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "SiI_IDE",
+ .id_table = siimage_pci_tbl,
+ .probe = siimage_init_one,
+};
+
+static int siimage_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(siimage_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick, Alan Cox");
+MODULE_DESCRIPTION("PCI driver module for SiI IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
new file mode 100644
index 0000000..9d70ba5
--- /dev/null
+++ b/drivers/ide/pci/sis5513.c
@@ -0,0 +1,984 @@
+/*
+ * linux/drivers/ide/pci/sis5513.c Version 0.16ac+vp Jun 18, 2003
+ *
+ * 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>
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ *
+ * Thanks :
+ *
+ * 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>
+ * ATA133 961/962/963 fixes by Vojtech Pavlik <vojtech@suse.cz>
+ *
+ * Documentation:
+ * SiS chipset documentation available under NDA to companies only
+ * (not to individuals).
+ */
+
+/*
+ * The original SiS5513 comes from a SiS5511/55112/5513 chipset. The original
+ * SiS5513 was also used in the SiS5596/5513 chipset. Thus if we see a SiS5511
+ * or SiS5596, we can assume we see the first MWDMA-16 capable SiS5513 chip.
+ *
+ * Later SiS chipsets integrated the 5513 functionality into the NorthBridge,
+ * starting with SiS5571 and up to SiS745. The PCI ID didn't change, though. We
+ * can figure out that we have a more modern and more capable 5513 by looking
+ * for the respective NorthBridge IDs.
+ *
+ * Even later (96x family) SiS chipsets use the MuTIOL link and place the 5513
+ * into the SouthBrige. Here we cannot rely on looking up the NorthBridge PCI
+ * ID, while the now ATA-133 capable 5513 still has the same PCI ID.
+ * Fortunately the 5513 can be 'unmasked' by fiddling with some config space
+ * bits, changing its device id to the true one - 5517 for 961 and 5518 for
+ * 962/963.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/irq.h>
+
+#include "ide-timing.h"
+
+#define DISPLAY_SIS_TIMINGS
+
+/* registers layout and init values are chipset family dependant */
+
+#define ATA_16 0x01
+#define ATA_33 0x02
+#define ATA_66 0x03
+#define ATA_100a 0x04 // SiS730/SiS550 is ATA100 with ATA66 layout
+#define ATA_100 0x05
+#define ATA_133a 0x06 // SiS961b with 133 support
+#define ATA_133 0x07 // SiS962/963
+
+static u8 chipset_family;
+
+/*
+ * Devices supported
+ */
+static const struct {
+ const char *name;
+ u16 host_id;
+ u8 chipset_family;
+ u8 flags;
+} SiSHostChipInfo[] = {
+ { "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 },
+ { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 },
+ { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 },
+ { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 },
+ { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 },
+
+ { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a },
+ { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a },
+
+ { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 },
+ { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 },
+ { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 },
+ { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 },
+ { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 },
+
+ { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 },
+ { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 },
+ { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 },
+ { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 },
+ { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 },
+ { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 },
+
+ { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 },
+ { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 },
+ { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 },
+};
+
+/* Cycle time bits and values vary across chip dma capabilities
+ These three arrays hold the register layout and the values to set.
+ Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */
+
+/* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */
+static u8 cycle_time_offset[] = {0,0,5,4,4,0,0};
+static u8 cycle_time_range[] = {0,0,2,3,3,4,4};
+static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
+ {0,0,0,0,0,0,0}, /* no udma */
+ {0,0,0,0,0,0,0}, /* no udma */
+ {3,2,1,0,0,0,0}, /* ATA_33 */
+ {7,5,3,2,1,0,0}, /* ATA_66 */
+ {7,5,3,2,1,0,0}, /* ATA_100a (730 specific), differences are on cycle_time range and offset */
+ {11,7,5,4,2,1,0}, /* ATA_100 */
+ {15,10,7,5,3,2,1}, /* ATA_133a (earliest 691 southbridges) */
+ {15,10,7,5,3,2,1}, /* ATA_133 */
+};
+/* CRC Valid Setup Time vary across IDE clock setting 33/66/100/133
+ See SiS962 data sheet for more detail */
+static u8 cvs_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
+ {0,0,0,0,0,0,0}, /* no udma */
+ {0,0,0,0,0,0,0}, /* no udma */
+ {2,1,1,0,0,0,0},
+ {4,3,2,1,0,0,0},
+ {4,3,2,1,0,0,0},
+ {6,4,3,1,1,1,0},
+ {9,6,4,2,2,2,2},
+ {9,6,4,2,2,2,2},
+};
+/* Initialize time, Active time, Recovery time vary across
+ IDE clock settings. These 3 arrays hold the register value
+ for PIO0/1/2/3/4 and DMA0/1/2 mode in order */
+static u8 ini_time_value[][8] = {
+ {0,0,0,0,0,0,0,0},
+ {0,0,0,0,0,0,0,0},
+ {2,1,0,0,0,1,0,0},
+ {4,3,1,1,1,3,1,1},
+ {4,3,1,1,1,3,1,1},
+ {6,4,2,2,2,4,2,2},
+ {9,6,3,3,3,6,3,3},
+ {9,6,3,3,3,6,3,3},
+};
+static u8 act_time_value[][8] = {
+ {0,0,0,0,0,0,0,0},
+ {0,0,0,0,0,0,0,0},
+ {9,9,9,2,2,7,2,2},
+ {19,19,19,5,4,14,5,4},
+ {19,19,19,5,4,14,5,4},
+ {28,28,28,7,6,21,7,6},
+ {38,38,38,10,9,28,10,9},
+ {38,38,38,10,9,28,10,9},
+};
+static u8 rco_time_value[][8] = {
+ {0,0,0,0,0,0,0,0},
+ {0,0,0,0,0,0,0,0},
+ {9,2,0,2,0,7,1,1},
+ {19,5,1,5,2,16,3,2},
+ {19,5,1,5,2,16,3,2},
+ {30,9,3,9,4,25,6,4},
+ {40,12,4,12,5,34,12,5},
+ {40,12,4,12,5,34,12,5},
+};
+
+/*
+ * Printing configuration
+ */
+/* Used for chipset type printing at boot time */
+static char* chipset_capability[] = {
+ "ATA", "ATA 16",
+ "ATA 33", "ATA 66",
+ "ATA 100 (1st gen)", "ATA 100 (2nd gen)",
+ "ATA 133 (1st gen)", "ATA 133 (2nd gen)"
+};
+
+#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static u8 sis_proc = 0;
+
+static struct pci_dev *bmide_dev;
+
+static char* cable_type[] = {
+ "80 pins",
+ "40 pins"
+};
+
+static char* recovery_time[] ={
+ "12 PCICLK", "1 PCICLK",
+ "2 PCICLK", "3 PCICLK",
+ "4 PCICLK", "5 PCICLCK",
+ "6 PCICLK", "7 PCICLCK",
+ "8 PCICLK", "9 PCICLCK",
+ "10 PCICLK", "11 PCICLK",
+ "13 PCICLK", "14 PCICLK",
+ "15 PCICLK", "15 PCICLK"
+};
+
+static char* active_time[] = {
+ "8 PCICLK", "1 PCICLCK",
+ "2 PCICLK", "3 PCICLK",
+ "4 PCICLK", "5 PCICLK",
+ "6 PCICLK", "12 PCICLK"
+};
+
+static char* cycle_time[] = {
+ "Reserved", "2 CLK",
+ "3 CLK", "4 CLK",
+ "5 CLK", "6 CLK",
+ "7 CLK", "8 CLK",
+ "9 CLK", "10 CLK",
+ "11 CLK", "12 CLK",
+ "13 CLK", "14 CLK",
+ "15 CLK", "16 CLK"
+};
+
+/* Generic add master or slave info function */
+static char* get_drives_info (char *buffer, u8 pos)
+{
+ u8 reg00, reg01, reg10, reg11; /* timing registers */
+ u32 regdw0, regdw1;
+ char* p = buffer;
+
+/* Postwrite/Prefetch */
+ if (chipset_family < ATA_133) {
+ pci_read_config_byte(bmide_dev, 0x4b, ®00);
+ p += sprintf(p, "Drive %d: Postwrite %s \t \t Postwrite %s\n",
+ pos, (reg00 & (0x10 << pos)) ? "Enabled" : "Disabled",
+ (reg00 & (0x40 << pos)) ? "Enabled" : "Disabled");
+ p += sprintf(p, " Prefetch %s \t \t Prefetch %s\n",
+ (reg00 & (0x01 << pos)) ? "Enabled" : "Disabled",
+ (reg00 & (0x04 << pos)) ? "Enabled" : "Disabled");
+ pci_read_config_byte(bmide_dev, 0x40+2*pos, ®00);
+ pci_read_config_byte(bmide_dev, 0x41+2*pos, ®01);
+ pci_read_config_byte(bmide_dev, 0x44+2*pos, ®10);
+ pci_read_config_byte(bmide_dev, 0x45+2*pos, ®11);
+ } else {
+ u32 reg54h;
+ u8 drive_pci = 0x40;
+ pci_read_config_dword(bmide_dev, 0x54, ®54h);
+ if (reg54h & 0x40000000) {
+ // Configuration space remapped to 0x70
+ drive_pci = 0x70;
+ }
+ pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos, ®dw0);
+ pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos+8, ®dw1);
+
+ p += sprintf(p, "Drive %d:\n", pos);
+ }
+
+
+/* UDMA */
+ if (chipset_family >= ATA_133) {
+ p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n",
+ (regdw0 & 0x04) ? "Enabled" : "Disabled",
+ (regdw1 & 0x04) ? "Enabled" : "Disabled");
+ p += sprintf(p, " UDMA Cycle Time %s \t UDMA Cycle Time %s\n",
+ cycle_time[(regdw0 & 0xF0) >> 4],
+ cycle_time[(regdw1 & 0xF0) >> 4]);
+ } else if (chipset_family >= ATA_33) {
+ p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n",
+ (reg01 & 0x80) ? "Enabled" : "Disabled",
+ (reg11 & 0x80) ? "Enabled" : "Disabled");
+
+ p += sprintf(p, " UDMA Cycle Time ");
+ switch(chipset_family) {
+ case ATA_33: p += sprintf(p, cycle_time[(reg01 & 0x60) >> 5]); break;
+ case ATA_66:
+ case ATA_100a: p += sprintf(p, cycle_time[(reg01 & 0x70) >> 4]); break;
+ case ATA_100:
+ case ATA_133a: p += sprintf(p, cycle_time[reg01 & 0x0F]); break;
+ default: p += sprintf(p, "?"); break;
+ }
+ p += sprintf(p, " \t UDMA Cycle Time ");
+ switch(chipset_family) {
+ case ATA_33: p += sprintf(p, cycle_time[(reg11 & 0x60) >> 5]); break;
+ case ATA_66:
+ case ATA_100a: p += sprintf(p, cycle_time[(reg11 & 0x70) >> 4]); break;
+ case ATA_100:
+ case ATA_133a: p += sprintf(p, cycle_time[reg11 & 0x0F]); break;
+ default: p += sprintf(p, "?"); break;
+ }
+ p += sprintf(p, "\n");
+ }
+
+
+ if (chipset_family < ATA_133) { /* else case TODO */
+
+/* Data Active */
+ p += sprintf(p, " Data Active Time ");
+ switch(chipset_family) {
+ case ATA_16: /* confirmed */
+ case ATA_33:
+ case ATA_66:
+ case ATA_100a: p += sprintf(p, active_time[reg01 & 0x07]); break;
+ case ATA_100:
+ case ATA_133a: p += sprintf(p, active_time[(reg00 & 0x70) >> 4]); break;
+ default: p += sprintf(p, "?"); break;
+ }
+ p += sprintf(p, " \t Data Active Time ");
+ switch(chipset_family) {
+ case ATA_16:
+ case ATA_33:
+ case ATA_66:
+ case ATA_100a: p += sprintf(p, active_time[reg11 & 0x07]); break;
+ case ATA_100:
+ case ATA_133a: p += sprintf(p, active_time[(reg10 & 0x70) >> 4]); break;
+ default: p += sprintf(p, "?"); break;
+ }
+ p += sprintf(p, "\n");
+
+/* Data Recovery */
+ /* warning: may need (reg&0x07) for pre ATA66 chips */
+ p += sprintf(p, " Data Recovery Time %s \t Data Recovery Time %s\n",
+ recovery_time[reg00 & 0x0f], recovery_time[reg10 & 0x0f]);
+ }
+
+ return p;
+}
+
+static char* get_masters_info(char* buffer)
+{
+ return get_drives_info(buffer, 0);
+}
+
+static char* get_slaves_info(char* buffer)
+{
+ return get_drives_info(buffer, 1);
+}
+
+/* Main get_info, called on /proc/ide/sis reads */
+static int sis_get_info (char *buffer, char **addr, off_t offset, int count)
+{
+ char *p = buffer;
+ int len;
+ u8 reg;
+ u16 reg2, reg3;
+
+ p += sprintf(p, "\nSiS 5513 ");
+ switch(chipset_family) {
+ case ATA_16: p += sprintf(p, "DMA 16"); break;
+ case ATA_33: p += sprintf(p, "Ultra 33"); break;
+ case ATA_66: p += sprintf(p, "Ultra 66"); break;
+ case ATA_100a:
+ case ATA_100: p += sprintf(p, "Ultra 100"); break;
+ case ATA_133a:
+ case ATA_133: p += sprintf(p, "Ultra 133"); break;
+ default: p+= sprintf(p, "Unknown???"); break;
+ }
+ p += sprintf(p, " chipset\n");
+ p += sprintf(p, "--------------- Primary Channel "
+ "---------------- Secondary Channel "
+ "-------------\n");
+
+/* Status */
+ pci_read_config_byte(bmide_dev, 0x4a, ®);
+ if (chipset_family == ATA_133) {
+ pci_read_config_word(bmide_dev, 0x50, ®2);
+ pci_read_config_word(bmide_dev, 0x52, ®3);
+ }
+ p += sprintf(p, "Channel Status: ");
+ if (chipset_family < ATA_66) {
+ p += sprintf(p, "%s \t \t \t \t %s\n",
+ (reg & 0x04) ? "On" : "Off",
+ (reg & 0x02) ? "On" : "Off");
+ } else if (chipset_family < ATA_133) {
+ p += sprintf(p, "%s \t \t \t \t %s \n",
+ (reg & 0x02) ? "On" : "Off",
+ (reg & 0x04) ? "On" : "Off");
+ } else { /* ATA_133 */
+ p += sprintf(p, "%s \t \t \t \t %s \n",
+ (reg2 & 0x02) ? "On" : "Off",
+ (reg3 & 0x02) ? "On" : "Off");
+ }
+
+/* Operation Mode */
+ pci_read_config_byte(bmide_dev, 0x09, ®);
+ p += sprintf(p, "Operation Mode: %s \t \t \t %s \n",
+ (reg & 0x01) ? "Native" : "Compatible",
+ (reg & 0x04) ? "Native" : "Compatible");
+
+/* 80-pin cable ? */
+ if (chipset_family >= ATA_133) {
+ p += sprintf(p, "Cable Type: %s \t \t \t %s\n",
+ (reg2 & 0x01) ? cable_type[1] : cable_type[0],
+ (reg3 & 0x01) ? cable_type[1] : cable_type[0]);
+ } else if (chipset_family > ATA_33) {
+ pci_read_config_byte(bmide_dev, 0x48, ®);
+ p += sprintf(p, "Cable Type: %s \t \t \t %s\n",
+ (reg & 0x10) ? cable_type[1] : cable_type[0],
+ (reg & 0x20) ? cable_type[1] : cable_type[0]);
+ }
+
+/* Prefetch Count */
+ if (chipset_family < ATA_133) {
+ pci_read_config_word(bmide_dev, 0x4c, ®2);
+ pci_read_config_word(bmide_dev, 0x4e, ®3);
+ p += sprintf(p, "Prefetch Count: %d \t \t \t \t %d\n",
+ reg2, reg3);
+ }
+
+ p = get_masters_info(p);
+ p = get_slaves_info(p);
+
+ len = (p - buffer) - offset;
+ *addr = buffer + offset;
+
+ return len > count ? count : len;
+}
+#endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */
+
+static u8 sis5513_ratemask (ide_drive_t *drive)
+{
+ u8 rates[] = { 0, 0, 1, 2, 3, 3, 4, 4 };
+ u8 mode = rates[chipset_family];
+
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+/*
+ * Configuration functions
+ */
+/* Enables per-drive prefetch and postwrite */
+static void config_drive_art_rwp (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ u8 reg4bh = 0;
+ u8 rw_prefetch = (0x11 << drive->dn);
+
+ if (drive->media != ide_disk)
+ return;
+ pci_read_config_byte(dev, 0x4b, ®4bh);
+
+ if ((reg4bh & rw_prefetch) != rw_prefetch)
+ pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
+}
+
+
+/* Set per-drive active and recovery time */
+static void config_art_rwp_pio (ide_drive_t *drive, u8 pio)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ u8 timing, drive_pci, test1, test2;
+
+ u16 eide_pio_timing[6] = {600, 390, 240, 180, 120, 90};
+ u16 xfer_pio = drive->id->eide_pio_modes;
+
+ config_drive_art_rwp(drive);
+ pio = ide_get_best_pio_mode(drive, 255, pio, NULL);
+
+ if (xfer_pio> 4)
+ xfer_pio = 0;
+
+ if (drive->id->eide_pio_iordy > 0) {
+ for (xfer_pio = 5;
+ (xfer_pio > 0) &&
+ (drive->id->eide_pio_iordy > eide_pio_timing[xfer_pio]);
+ xfer_pio--);
+ } else {
+ xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
+ (drive->id->eide_pio_modes & 2) ? 0x04 :
+ (drive->id->eide_pio_modes & 1) ? 0x03 : xfer_pio;
+ }
+
+ timing = (xfer_pio >= pio) ? xfer_pio : pio;
+
+ /* In pre ATA_133 case, drives sit at 0x40 + 4*drive->dn */
+ drive_pci = 0x40;
+ /* In SiS962 case drives sit at (0x40 or 0x70) + 8*drive->dn) */
+ if (chipset_family >= ATA_133) {
+ u32 reg54h;
+ pci_read_config_dword(dev, 0x54, ®54h);
+ if (reg54h & 0x40000000) drive_pci = 0x70;
+ drive_pci += ((drive->dn)*0x4);
+ } else {
+ drive_pci += ((drive->dn)*0x2);
+ }
+
+ /* register layout changed with newer ATA100 chips */
+ if (chipset_family < ATA_100) {
+ pci_read_config_byte(dev, drive_pci, &test1);
+ pci_read_config_byte(dev, drive_pci+1, &test2);
+
+ /* Clear active and recovery timings */
+ test1 &= ~0x0F;
+ test2 &= ~0x07;
+
+ switch(timing) {
+ case 4: test1 |= 0x01; test2 |= 0x03; break;
+ case 3: test1 |= 0x03; test2 |= 0x03; break;
+ case 2: test1 |= 0x04; test2 |= 0x04; break;
+ case 1: test1 |= 0x07; test2 |= 0x06; break;
+ default: break;
+ }
+ pci_write_config_byte(dev, drive_pci, test1);
+ pci_write_config_byte(dev, drive_pci+1, test2);
+ } else if (chipset_family < ATA_133) {
+ switch(timing) { /* active recovery
+ v v */
+ case 4: test1 = 0x30|0x01; break;
+ case 3: test1 = 0x30|0x03; break;
+ case 2: test1 = 0x40|0x04; break;
+ case 1: test1 = 0x60|0x07; break;
+ default: break;
+ }
+ pci_write_config_byte(dev, drive_pci, test1);
+ } else { /* ATA_133 */
+ u32 test3;
+ pci_read_config_dword(dev, drive_pci, &test3);
+ test3 &= 0xc0c00fff;
+ if (test3 & 0x08) {
+ test3 |= (unsigned long)ini_time_value[ATA_133][timing] << 12;
+ test3 |= (unsigned long)act_time_value[ATA_133][timing] << 16;
+ test3 |= (unsigned long)rco_time_value[ATA_133][timing] << 24;
+ } else {
+ test3 |= (unsigned long)ini_time_value[ATA_100][timing] << 12;
+ test3 |= (unsigned long)act_time_value[ATA_100][timing] << 16;
+ test3 |= (unsigned long)rco_time_value[ATA_100][timing] << 24;
+ }
+ pci_write_config_dword(dev, drive_pci, test3);
+ }
+}
+
+static int config_chipset_for_pio (ide_drive_t *drive, u8 pio)
+{
+ if (pio == 255)
+ pio = ide_find_best_mode(drive, XFER_PIO | XFER_EPIO) - XFER_PIO_0;
+ config_art_rwp_pio(drive, pio);
+ return ide_config_drive_speed(drive, XFER_PIO_0 + min_t(u8, pio, 4));
+}
+
+static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ u8 drive_pci, reg, speed;
+ u32 regdw;
+
+ speed = ide_rate_filter(sis5513_ratemask(drive), xferspeed);
+
+ /* See config_art_rwp_pio for drive pci config registers */
+ drive_pci = 0x40;
+ if (chipset_family >= ATA_133) {
+ u32 reg54h;
+ pci_read_config_dword(dev, 0x54, ®54h);
+ if (reg54h & 0x40000000) drive_pci = 0x70;
+ drive_pci += ((drive->dn)*0x4);
+ pci_read_config_dword(dev, (unsigned long)drive_pci, ®dw);
+ /* Disable UDMA bit for non UDMA modes on UDMA chips */
+ if (speed < XFER_UDMA_0) {
+ regdw &= 0xfffffffb;
+ pci_write_config_dword(dev, (unsigned long)drive_pci, regdw);
+ }
+
+ } else {
+ drive_pci += ((drive->dn)*0x2);
+ pci_read_config_byte(dev, drive_pci+1, ®);
+ /* Disable UDMA bit for non UDMA modes on UDMA chips */
+ if ((speed < XFER_UDMA_0) && (chipset_family > ATA_16)) {
+ reg &= 0x7F;
+ pci_write_config_byte(dev, drive_pci+1, reg);
+ }
+ }
+
+ /* Config chip for mode */
+ switch(speed) {
+ case XFER_UDMA_6:
+ case XFER_UDMA_5:
+ case XFER_UDMA_4:
+ case XFER_UDMA_3:
+ case XFER_UDMA_2:
+ case XFER_UDMA_1:
+ case XFER_UDMA_0:
+ if (chipset_family >= ATA_133) {
+ regdw |= 0x04;
+ regdw &= 0xfffff00f;
+ /* check if ATA133 enable */
+ if (regdw & 0x08) {
+ regdw |= (unsigned long)cycle_time_value[ATA_133][speed-XFER_UDMA_0] << 4;
+ regdw |= (unsigned long)cvs_time_value[ATA_133][speed-XFER_UDMA_0] << 8;
+ } else {
+ /* if ATA133 disable, we should not set speed above UDMA5 */
+ if (speed > XFER_UDMA_5)
+ speed = XFER_UDMA_5;
+ regdw |= (unsigned long)cycle_time_value[ATA_100][speed-XFER_UDMA_0] << 4;
+ regdw |= (unsigned long)cvs_time_value[ATA_100][speed-XFER_UDMA_0] << 8;
+ }
+ pci_write_config_dword(dev, (unsigned long)drive_pci, regdw);
+ } else {
+ /* Force the UDMA bit on if we want to use UDMA */
+ reg |= 0x80;
+ /* clean reg cycle time bits */
+ reg &= ~((0xFF >> (8 - cycle_time_range[chipset_family]))
+ << cycle_time_offset[chipset_family]);
+ /* set reg cycle time bits */
+ reg |= cycle_time_value[chipset_family][speed-XFER_UDMA_0]
+ << cycle_time_offset[chipset_family];
+ pci_write_config_byte(dev, drive_pci+1, reg);
+ }
+ break;
+ case XFER_MW_DMA_2:
+ case XFER_MW_DMA_1:
+ case XFER_MW_DMA_0:
+ case XFER_SW_DMA_2:
+ case XFER_SW_DMA_1:
+ case XFER_SW_DMA_0:
+ break;
+ case XFER_PIO_4: return((int) config_chipset_for_pio(drive, 4));
+ case XFER_PIO_3: return((int) config_chipset_for_pio(drive, 3));
+ case XFER_PIO_2: return((int) config_chipset_for_pio(drive, 2));
+ case XFER_PIO_1: return((int) config_chipset_for_pio(drive, 1));
+ case XFER_PIO_0:
+ default: return((int) config_chipset_for_pio(drive, 0));
+ }
+
+ return ((int) ide_config_drive_speed(drive, speed));
+}
+
+static void sis5513_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ (void) config_chipset_for_pio(drive, pio);
+}
+
+/*
+ * ((id->hw_config & 0x4000|0x2000) && (HWIF(drive)->udma_four))
+ */
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, sis5513_ratemask(drive));
+
+#ifdef DEBUG
+ printk("SIS5513: config_chipset_for_dma, drive %d, ultra %x\n",
+ drive->dn, drive->id->dma_ultra);
+#endif
+
+ if (!(speed))
+ return 0;
+
+ sis5513_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int sis5513_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if (id && (id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ sis5513_tune_drive(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+
+/* initiates/aborts (U)DMA read/write operations on a drive. */
+static int sis5513_config_xfer_rate (ide_drive_t *drive)
+{
+ config_drive_art_rwp(drive);
+ config_art_rwp_pio(drive, 5);
+ return sis5513_config_drive_xfer_rate(drive);
+}
+
+/*
+ Future simpler config_xfer_rate :
+ When ide_find_best_mode is made bad-drive aware
+ - remove config_drive_xfer_rate and config_chipset_for_dma,
+ - replace config_xfer_rate with the following
+
+static int sis5513_config_xfer_rate (ide_drive_t *drive)
+{
+ u16 w80 = HWIF(drive)->udma_four;
+ u16 speed;
+
+ config_drive_art_rwp(drive);
+ config_art_rwp_pio(drive, 5);
+
+ speed = ide_find_best_mode(drive,
+ XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA |
+ (chipset_family >= ATA_33 ? XFER_UDMA : 0) |
+ (w80 && chipset_family >= ATA_66 ? XFER_UDMA_66 : 0) |
+ (w80 && chipset_family >= ATA_100a ? XFER_UDMA_100 : 0) |
+ (w80 && chipset_family >= ATA_133a ? XFER_UDMA_133 : 0));
+
+ sis5513_tune_chipset(drive, speed);
+
+ if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
+ return HWIF(drive)->ide_dma_on(drive);
+ return HWIF(drive)->ide_dma_off_quietly(drive);
+}
+*/
+
+/* Chip detection and general config */
+static unsigned int __init init_chipset_sis5513 (struct pci_dev *dev, const char *name)
+{
+ struct pci_dev *host;
+ int i = 0;
+
+ chipset_family = 0;
+
+ for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) {
+
+ host = pci_find_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL);
+
+ if (!host)
+ continue;
+
+ chipset_family = SiSHostChipInfo[i].chipset_family;
+
+ /* Special case for SiS630 : 630S/ET is ATA_100a */
+ if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
+ u8 hostrev;
+ pci_read_config_byte(host, PCI_REVISION_ID, &hostrev);
+ if (hostrev >= 0x30)
+ chipset_family = ATA_100a;
+ }
+
+ printk(KERN_INFO "SIS5513: %s %s controller\n",
+ SiSHostChipInfo[i].name, chipset_capability[chipset_family]);
+ }
+
+ if (!chipset_family) { /* Belongs to pci-quirks */
+
+ u32 idemisc;
+ u16 trueid;
+
+ /* Disable ID masking and register remapping */
+ pci_read_config_dword(dev, 0x54, &idemisc);
+ pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff));
+ pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
+ pci_write_config_dword(dev, 0x54, idemisc);
+
+ if (trueid == 0x5518) {
+ printk(KERN_INFO "SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller\n");
+ chipset_family = ATA_133;
+
+ /* Check for 5513 compability mapping
+ * We must use this, else the port enabled code will fail,
+ * as it expects the enablebits at 0x4a.
+ */
+ if ((idemisc & 0x40000000) == 0) {
+ pci_write_config_dword(dev, 0x54, idemisc | 0x40000000);
+ printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n");
+ }
+ }
+ }
+
+ if (!chipset_family) { /* Belongs to pci-quirks */
+
+ struct pci_dev *lpc_bridge;
+ u16 trueid;
+ u8 prefctl;
+ u8 idecfg;
+ u8 sbrev;
+
+ pci_read_config_byte(dev, 0x4a, &idecfg);
+ pci_write_config_byte(dev, 0x4a, idecfg | 0x10);
+ pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
+ pci_write_config_byte(dev, 0x4a, idecfg);
+
+ if (trueid == 0x5517) { /* SiS 961/961B */
+
+ lpc_bridge = pci_find_slot(0x00, 0x10); /* Bus 0, Dev 2, Fn 0 */
+ pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev);
+ pci_read_config_byte(dev, 0x49, &prefctl);
+
+ if (sbrev == 0x10 && (prefctl & 0x80)) {
+ printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n");
+ chipset_family = ATA_133a;
+ } else {
+ printk(KERN_INFO "SIS5513: SiS 961 MuTIOL IDE UDMA100 controller\n");
+ chipset_family = ATA_100;
+ }
+ }
+ }
+
+ if (!chipset_family)
+ return -1;
+
+ /* Make general config ops here
+ 1/ tell IDE channels to operate in Compatibility mode only
+ 2/ tell old chips to allow per drive IDE timings */
+
+ {
+ u8 reg;
+ u16 regw;
+
+ switch(chipset_family) {
+ case ATA_133:
+ /* SiS962 operation mode */
+ pci_read_config_word(dev, 0x50, ®w);
+ if (regw & 0x08)
+ pci_write_config_word(dev, 0x50, regw&0xfff7);
+ pci_read_config_word(dev, 0x52, ®w);
+ if (regw & 0x08)
+ pci_write_config_word(dev, 0x52, regw&0xfff7);
+ break;
+ case ATA_133a:
+ case ATA_100:
+ /* Fixup latency */
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80);
+ /* Set compatibility bit */
+ pci_read_config_byte(dev, 0x49, ®);
+ if (!(reg & 0x01)) {
+ pci_write_config_byte(dev, 0x49, reg|0x01);
+ }
+ break;
+ case ATA_100a:
+ case ATA_66:
+ /* Fixup latency */
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10);
+
+ /* On ATA_66 chips the bit was elsewhere */
+ pci_read_config_byte(dev, 0x52, ®);
+ if (!(reg & 0x04)) {
+ pci_write_config_byte(dev, 0x52, reg|0x04);
+ }
+ break;
+ case ATA_33:
+ /* On ATA_33 we didn't have a single bit to set */
+ pci_read_config_byte(dev, 0x09, ®);
+ if ((reg & 0x0f) != 0x00) {
+ pci_write_config_byte(dev, 0x09, reg&0xf0);
+ }
+ case ATA_16:
+ /* force per drive recovery and active timings
+ needed on ATA_33 and below chips */
+ pci_read_config_byte(dev, 0x52, ®);
+ if (!(reg & 0x08)) {
+ pci_write_config_byte(dev, 0x52, reg|0x08);
+ }
+ break;
+ }
+
+#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
+ if (!sis_proc) {
+ sis_proc = 1;
+ bmide_dev = dev;
+ ide_pci_create_host_proc("sis", sis_get_info);
+ }
+#endif
+ }
+
+ return 0;
+}
+
+static unsigned int __init ata66_sis5513 (ide_hwif_t *hwif)
+{
+ u8 ata66 = 0;
+
+ if (chipset_family >= ATA_133) {
+ u16 regw = 0;
+ u16 reg_addr = hwif->channel ? 0x52: 0x50;
+ pci_read_config_word(hwif->pci_dev, reg_addr, ®w);
+ ata66 = (regw & 0x8000) ? 0 : 1;
+ } else if (chipset_family >= ATA_66) {
+ u8 reg48h = 0;
+ u8 mask = hwif->channel ? 0x20 : 0x10;
+ pci_read_config_byte(hwif->pci_dev, 0x48, ®48h);
+ ata66 = (reg48h & mask) ? 0 : 1;
+ }
+ return ata66;
+}
+
+static void __init init_hwif_sis5513 (ide_hwif_t *hwif)
+{
+ hwif->autodma = 0;
+
+ if (!hwif->irq)
+ hwif->irq = hwif->channel ? 15 : 14;
+
+ hwif->tuneproc = &sis5513_tune_drive;
+ hwif->speedproc = &sis5513_tune_chipset;
+
+ if (!(hwif->dma_base)) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (!chipset_family)
+ return;
+
+ if (!(hwif->udma_four))
+ hwif->udma_four = ata66_sis5513(hwif);
+
+ if (chipset_family > ATA_16) {
+ hwif->ide_dma_check = &sis5513_config_xfer_rate;
+ if (!noautodma)
+ hwif->autodma = 1;
+ }
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+ return;
+}
+
+static ide_pci_device_t sis5513_chipset __devinitdata = {
+ .name = "SIS5513",
+ .init_chipset = init_chipset_sis5513,
+ .init_hwif = init_hwif_sis5513,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
+ .bootable = ON_BOARD,
+};
+
+static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &sis5513_chipset);
+}
+
+static struct pci_device_id sis5513_pci_tbl[] = {
+ { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5518, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "SIS_IDE",
+ .id_table = sis5513_pci_tbl,
+ .probe = sis5513_init_one,
+};
+
+static int sis5513_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(sis5513_ide_init);
+
+MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik");
+MODULE_DESCRIPTION("PCI driver module for SIS IDE");
+MODULE_LICENSE("GPL");
+
+/*
+ * TODO:
+ * - CLEANUP
+ * - Use drivers/ide/ide-timing.h !
+ * - More checks in the config registers (force values instead of
+ * relying on the BIOS setting them correctly).
+ * - Further optimisations ?
+ * . for example ATA66+ regs 0x48 & 0x4A
+ */
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
new file mode 100644
index 0000000..1d970a0
--- /dev/null
+++ b/drivers/ide/pci/sl82c105.c
@@ -0,0 +1,516 @@
+/*
+ * linux/drivers/ide/pci/sl82c105.c
+ *
+ * SL82C105/Winbond 553 IDE driver
+ *
+ * Maintainer unknown.
+ *
+ * Drive tuning added from Rebel.com's kernel sources
+ * -- Russell King (15/11/98) linux@arm.linux.org.uk
+ *
+ * Merge in Russell's HW workarounds, fix various problems
+ * with the timing registers setup.
+ * -- Benjamin Herrenschmidt (01/11/03) benh@kernel.crashing.org
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(arg) printk arg
+#else
+#define DBG(fmt,...)
+#endif
+/*
+ * SL82C105 PCI config register 0x40 bits.
+ */
+#define CTRL_IDE_IRQB (1 << 30)
+#define CTRL_IDE_IRQA (1 << 28)
+#define CTRL_LEGIRQ (1 << 11)
+#define CTRL_P1F16 (1 << 5)
+#define CTRL_P1EN (1 << 4)
+#define CTRL_P0F16 (1 << 1)
+#define CTRL_P0EN (1 << 0)
+
+/*
+ * Convert a PIO mode and cycle time to the required on/off
+ * times for the interface. This has protection against run-away
+ * timings.
+ */
+static unsigned int get_timing_sl82c105(ide_pio_data_t *p)
+{
+ unsigned int cmd_on;
+ unsigned int cmd_off;
+
+ cmd_on = (ide_pio_timings[p->pio_mode].active_time + 29) / 30;
+ cmd_off = (p->cycle_time - 30 * cmd_on + 29) / 30;
+
+ if (cmd_on > 32)
+ cmd_on = 32;
+ if (cmd_on == 0)
+ cmd_on = 1;
+
+ if (cmd_off > 32)
+ cmd_off = 32;
+ if (cmd_off == 0)
+ cmd_off = 1;
+
+ return (cmd_on - 1) << 8 | (cmd_off - 1) | (p->use_iordy ? 0x40 : 0x00);
+}
+
+/*
+ * Configure the drive and chipset for PIO
+ */
+static void config_for_pio(ide_drive_t *drive, int pio, int report, int chipset_only)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ ide_pio_data_t p;
+ u16 drv_ctrl = 0x909;
+ unsigned int xfer_mode, reg;
+
+ DBG(("config_for_pio(drive:%s, pio:%d, report:%d, chipset_only:%d)\n",
+ drive->name, pio, report, chipset_only));
+
+ reg = (hwif->channel ? 0x4c : 0x44) + (drive->select.b.unit ? 4 : 0);
+
+ pio = ide_get_best_pio_mode(drive, pio, 5, &p);
+
+ xfer_mode = XFER_PIO_0 + pio;
+
+ if (chipset_only || ide_config_drive_speed(drive, xfer_mode) == 0) {
+ drv_ctrl = get_timing_sl82c105(&p);
+ drive->pio_speed = xfer_mode;
+ } else
+ drive->pio_speed = XFER_PIO_0;
+
+ if (drive->using_dma == 0) {
+ /*
+ * If we are actually using MW DMA, then we can not
+ * reprogram the interface drive control register.
+ */
+ pci_write_config_word(dev, reg, drv_ctrl);
+ pci_read_config_word(dev, reg, &drv_ctrl);
+
+ if (report) {
+ printk("%s: selected %s (%dns) (%04X)\n", drive->name,
+ ide_xfer_verbose(xfer_mode), p.cycle_time, drv_ctrl);
+ }
+ }
+}
+
+/*
+ * Configure the drive and the chipset for DMA
+ */
+static int config_for_dma (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ unsigned int reg;
+
+ DBG(("config_for_dma(drive:%s)\n", drive->name));
+
+ reg = (hwif->channel ? 0x4c : 0x44) + (drive->select.b.unit ? 4 : 0);
+
+ if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0)
+ return 1;
+
+ pci_write_config_word(dev, reg, 0x0240);
+
+ return 0;
+}
+
+/*
+ * Check to see if the drive and
+ * chipset is capable of DMA mode
+ */
+
+static int sl82c105_check_drive (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+
+ DBG(("sl82c105_check_drive(drive:%s)\n", drive->name));
+
+ do {
+ struct hd_driveid *id = drive->id;
+
+ if (!drive->autodma)
+ break;
+
+ if (!id || !(id->capability & 1))
+ break;
+
+ /* Consult the list of known "bad" drives */
+ if (__ide_dma_bad_drive(drive))
+ break;
+
+ if (id->field_valid & 2) {
+ if ((id->dma_mword & hwif->mwdma_mask) ||
+ (id->dma_1word & hwif->swdma_mask))
+ return hwif->ide_dma_on(drive);
+ }
+
+ if (__ide_dma_good_drive(drive))
+ return hwif->ide_dma_on(drive);
+ } while (0);
+
+ return hwif->ide_dma_off_quietly(drive);
+}
+
+/*
+ * The SL82C105 holds off all IDE interrupts while in DMA mode until
+ * all DMA activity is completed. Sometimes this causes problems (eg,
+ * when the drive wants to report an error condition).
+ *
+ * 0x7e is a "chip testing" register. Bit 2 resets the DMA controller
+ * state machine. We need to kick this to work around various bugs.
+ */
+static inline void sl82c105_reset_host(struct pci_dev *dev)
+{
+ u16 val;
+
+ pci_read_config_word(dev, 0x7e, &val);
+ pci_write_config_word(dev, 0x7e, val | (1 << 2));
+ pci_write_config_word(dev, 0x7e, val & ~(1 << 2));
+}
+
+/*
+ * If we get an IRQ timeout, it might be that the DMA state machine
+ * got confused. Fix from Todd Inglett. Details from Winbond.
+ *
+ * This function is called when the IDE timer expires, the drive
+ * indicates that it is READY, and we were waiting for DMA to complete.
+ */
+static int sl82c105_ide_dma_lost_irq(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u32 val, mask = hwif->channel ? CTRL_IDE_IRQB : CTRL_IDE_IRQA;
+ unsigned long dma_base = hwif->dma_base;
+
+ printk("sl82c105: lost IRQ: resetting host\n");
+
+ /*
+ * Check the raw interrupt from the drive.
+ */
+ pci_read_config_dword(dev, 0x40, &val);
+ if (val & mask)
+ printk("sl82c105: drive was requesting IRQ, but host lost it\n");
+
+ /*
+ * Was DMA enabled? If so, disable it - we're resetting the
+ * host. The IDE layer will be handling the drive for us.
+ */
+ val = hwif->INB(dma_base);
+ if (val & 1) {
+ outb(val & ~1, dma_base);
+ printk("sl82c105: DMA was enabled\n");
+ }
+
+ sl82c105_reset_host(dev);
+
+ /* ide_dmaproc would return 1, so we do as well */
+ return 1;
+}
+
+/*
+ * ATAPI devices can cause the SL82C105 DMA state machine to go gaga.
+ * Winbond recommend that the DMA state machine is reset prior to
+ * setting the bus master DMA enable bit.
+ *
+ * The generic IDE core will have disabled the BMEN bit before this
+ * function is called.
+ */
+static void sl82c105_ide_dma_start(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ sl82c105_reset_host(dev);
+ ide_dma_start(drive);
+}
+
+static int sl82c105_ide_dma_timeout(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+
+ DBG(("sl82c105_ide_dma_timeout(drive:%s)\n", drive->name));
+
+ sl82c105_reset_host(dev);
+ return __ide_dma_timeout(drive);
+}
+
+static int sl82c105_ide_dma_on (ide_drive_t *drive)
+{
+ DBG(("sl82c105_ide_dma_on(drive:%s)\n", drive->name));
+
+ if (config_for_dma(drive)) {
+ config_for_pio(drive, 4, 0, 0);
+ return HWIF(drive)->ide_dma_off_quietly(drive);
+ }
+ printk(KERN_INFO "%s: DMA enabled\n", drive->name);
+ return __ide_dma_on(drive);
+}
+
+static int sl82c105_ide_dma_off_quietly (ide_drive_t *drive)
+{
+ u8 speed = XFER_PIO_0;
+ int rc;
+
+ DBG(("sl82c105_ide_dma_off_quietly(drive:%s)\n", drive->name));
+
+ rc = __ide_dma_off_quietly(drive);
+ if (drive->pio_speed)
+ speed = drive->pio_speed - XFER_PIO_0;
+ config_for_pio(drive, speed, 0, 1);
+ drive->current_speed = drive->pio_speed;
+
+ return rc;
+}
+
+/*
+ * Ok, that is nasty, but we must make sure the DMA timings
+ * won't be used for a PIO access. The solution here is
+ * to make sure the 16 bits mode is diabled on the channel
+ * when DMA is enabled, thus causing the chip to use PIO0
+ * timings for those operations.
+ */
+static void sl82c105_selectproc(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u32 val, old, mask;
+
+ //DBG(("sl82c105_selectproc(drive:%s)\n", drive->name));
+
+ mask = hwif->channel ? CTRL_P1F16 : CTRL_P0F16;
+ old = val = *((u32 *)&hwif->hwif_data);
+ if (drive->using_dma)
+ val &= ~mask;
+ else
+ val |= mask;
+ if (old != val) {
+ pci_write_config_dword(dev, 0x40, val);
+ *((u32 *)&hwif->hwif_data) = val;
+ }
+}
+
+/*
+ * ATA reset will clear the 16 bits mode in the control
+ * register, we need to update our cache
+ */
+static void sl82c105_resetproc(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u32 val;
+
+ DBG(("sl82c105_resetproc(drive:%s)\n", drive->name));
+
+ pci_read_config_dword(dev, 0x40, &val);
+ *((u32 *)&hwif->hwif_data) = val;
+}
+
+/*
+ * We only deal with PIO mode here - DMA mode 'using_dma' is not
+ * initialised at the point that this function is called.
+ */
+static void tune_sl82c105(ide_drive_t *drive, u8 pio)
+{
+ DBG(("tune_sl82c105(drive:%s)\n", drive->name));
+
+ config_for_pio(drive, pio, 1, 0);
+
+ /*
+ * We support 32-bit I/O on this interface, and it
+ * doesn't have problems with interrupts.
+ */
+ drive->io_32bit = 1;
+ drive->unmask = 1;
+}
+
+/*
+ * Return the revision of the Winbond bridge
+ * which this function is part of.
+ */
+static unsigned int sl82c105_bridge_revision(struct pci_dev *dev)
+{
+ struct pci_dev *bridge;
+ u8 rev;
+
+ /*
+ * The bridge should be part of the same device, but function 0.
+ */
+ bridge = pci_find_slot(dev->bus->number,
+ PCI_DEVFN(PCI_SLOT(dev->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)
+ return -1;
+
+ /*
+ * We need to find function 0's revision, not function 1
+ */
+ pci_read_config_byte(bridge, PCI_REVISION_ID, &rev);
+
+ return rev;
+}
+
+/*
+ * Enable the PCI device
+ *
+ * --BenH: It's arch fixup code that should enable channels that
+ * have not been enabled by firmware. I decided we can still enable
+ * channel 0 here at least, but channel 1 has to be enabled by
+ * firmware or arch code. We still set both to 16 bits mode.
+ */
+static unsigned int __init init_chipset_sl82c105(struct pci_dev *dev, const char *msg)
+{
+ u32 val;
+
+ DBG(("init_chipset_sl82c105()\n"));
+
+ pci_read_config_dword(dev, 0x40, &val);
+ val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
+ pci_write_config_dword(dev, 0x40, val);
+
+ return dev->irq;
+}
+
+static void __init init_dma_sl82c105(ide_hwif_t *hwif, unsigned long dma_base)
+{
+ unsigned int rev;
+ u8 dma_state;
+
+ DBG(("init_dma_sl82c105(hwif: ide%d, dma_base: 0x%08x)\n", hwif->index, dma_base));
+
+ hwif->autodma = 0;
+
+ if (!dma_base)
+ return;
+
+ dma_state = hwif->INB(dma_base + 2);
+ rev = sl82c105_bridge_revision(hwif->pci_dev);
+ if (rev <= 5) {
+ printk(" %s: Winbond 553 bridge revision %d, BM-DMA disabled\n",
+ hwif->name, rev);
+ dma_state &= ~0x60;
+ } else {
+ dma_state |= 0x60;
+ if (!noautodma)
+ hwif->autodma = 1;
+ }
+ hwif->OUTB(dma_state, dma_base + 2);
+
+ ide_setup_dma(hwif, dma_base, 8);
+}
+
+/*
+ * Initialise the chip
+ */
+
+static void __init init_hwif_sl82c105(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = hwif->pci_dev;
+ u32 val;
+
+ DBG(("init_hwif_sl82c105(hwif: ide%d)\n", hwif->index));
+
+ hwif->tuneproc = tune_sl82c105;
+ hwif->selectproc = sl82c105_selectproc;
+ hwif->resetproc = sl82c105_resetproc;
+
+ /* Default to PIO 0 for fallback unless tuned otherwise,
+ * we always autotune PIO, this is done before DMA is
+ * checked, so there is no risk of accidentally disabling
+ * DMA
+ */
+ hwif->drives[0].pio_speed = XFER_PIO_0;
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].pio_speed = XFER_PIO_1;
+ hwif->drives[1].autotune = 1;
+
+ pci_read_config_dword(dev, 0x40, &val);
+ *((u32 *)&hwif->hwif_data) = val;
+
+ if (!hwif->dma_base)
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+ hwif->ide_dma_check = &sl82c105_check_drive;
+ hwif->ide_dma_on = &sl82c105_ide_dma_on;
+ hwif->ide_dma_off_quietly = &sl82c105_ide_dma_off_quietly;
+ hwif->ide_dma_lostirq = &sl82c105_ide_dma_lost_irq;
+ hwif->dma_start = &sl82c105_ide_dma_start;
+ hwif->ide_dma_timeout = &sl82c105_ide_dma_timeout;
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+}
+
+static ide_pci_device_t sl82c105_chipset __devinitdata = {
+ .name = "W82C105",
+ .init_chipset = init_chipset_sl82c105,
+ .init_hwif = init_hwif_sl82c105,
+ .init_dma = init_dma_sl82c105,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}},
+ .bootable = ON_BOARD,
+};
+
+static int __devinit sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &sl82c105_chipset);
+}
+
+static struct pci_device_id sl82c105_pci_tbl[] = {
+ { PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, sl82c105_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "W82C105_IDE",
+ .id_table = sl82c105_pci_tbl,
+ .probe = sl82c105_init_one,
+};
+
+static int sl82c105_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(sl82c105_ide_init);
+
+MODULE_DESCRIPTION("PCI driver module for W82C105 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
new file mode 100644
index 0000000..7fbf363
--- /dev/null
+++ b/drivers/ide/pci/slc90e66.c
@@ -0,0 +1,273 @@
+/*
+ * linux/drivers/ide/pci/slc90e66.c Version 0.11 September 11, 2002
+ *
+ * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
+ *
+ * This a look-a-like variation of the ICH0 PIIX4 Ultra-66,
+ * but this keeps the ISA-Bridge and slots alive.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+static u8 slc90e66_ratemask (ide_drive_t *drive)
+{
+ u8 mode = 2;
+
+ if (!eighty_ninty_three(drive))
+ mode = min(mode, (u8)1);
+ return mode;
+}
+
+static u8 slc90e66_dma_2_pio (u8 xfer_rate) {
+ switch(xfer_rate) {
+ case XFER_UDMA_4:
+ case XFER_UDMA_3:
+ case XFER_UDMA_2:
+ case XFER_UDMA_1:
+ case XFER_UDMA_0:
+ case XFER_MW_DMA_2:
+ case XFER_PIO_4:
+ return 4;
+ case XFER_MW_DMA_1:
+ case XFER_PIO_3:
+ return 3;
+ case XFER_SW_DMA_2:
+ case XFER_PIO_2:
+ return 2;
+ case XFER_MW_DMA_0:
+ case XFER_SW_DMA_1:
+ case XFER_SW_DMA_0:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ case XFER_PIO_SLOW:
+ default:
+ return 0;
+ }
+}
+
+/*
+ * Based on settings done by AMI BIOS
+ * (might be useful if drive is not registered in CMOS for any reason).
+ */
+static void slc90e66_tune_drive (ide_drive_t *drive, u8 pio)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ int is_slave = (&hwif->drives[1] == drive);
+ int master_port = hwif->channel ? 0x42 : 0x40;
+ int slave_port = 0x44;
+ unsigned long flags;
+ u16 master_data;
+ u8 slave_data;
+ /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
+ spin_lock_irqsave(&ide_lock, flags);
+ pci_read_config_word(dev, master_port, &master_data);
+ if (is_slave) {
+ master_data = master_data | 0x4000;
+ if (pio > 1)
+ /* enable PPE, IE and TIME */
+ master_data = master_data | 0x0070;
+ pci_read_config_byte(dev, slave_port, &slave_data);
+ slave_data = slave_data & (hwif->channel ? 0x0f : 0xf0);
+ slave_data = slave_data | (((timings[pio][0] << 2) | timings[pio][1]) << (hwif->channel ? 4 : 0));
+ } else {
+ master_data = master_data & 0xccf8;
+ if (pio > 1)
+ /* enable PPE, IE and TIME */
+ master_data = master_data | 0x0007;
+ master_data = master_data | (timings[pio][0] << 12) | (timings[pio][1] << 8);
+ }
+ pci_write_config_word(dev, master_port, master_data);
+ if (is_slave)
+ pci_write_config_byte(dev, slave_port, slave_data);
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+
+static int slc90e66_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 maslave = hwif->channel ? 0x42 : 0x40;
+ u8 speed = ide_rate_filter(slc90e66_ratemask(drive), xferspeed);
+ int sitre = 0, a_speed = 7 << (drive->dn * 4);
+ int u_speed = 0, u_flag = 1 << drive->dn;
+ u16 reg4042, reg44, reg48, reg4a;
+
+ pci_read_config_word(dev, maslave, ®4042);
+ sitre = (reg4042 & 0x4000) ? 1 : 0;
+ pci_read_config_word(dev, 0x44, ®44);
+ pci_read_config_word(dev, 0x48, ®48);
+ pci_read_config_word(dev, 0x4a, ®4a);
+
+ switch(speed) {
+#ifdef CONFIG_BLK_DEV_IDEDMA
+ case XFER_UDMA_4: u_speed = 4 << (drive->dn * 4); break;
+ case XFER_UDMA_3: u_speed = 3 << (drive->dn * 4); break;
+ case XFER_UDMA_2: u_speed = 2 << (drive->dn * 4); break;
+ 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:
+ case XFER_SW_DMA_2: break;
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_0: break;
+ default: return -1;
+ }
+
+ if (speed >= XFER_UDMA_0) {
+ if (!(reg48 & u_flag))
+ pci_write_config_word(dev, 0x48, reg48|u_flag);
+ /* FIXME: (reg4a & a_speed) ? */
+ if ((reg4a & u_speed) != u_speed) {
+ pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
+ pci_read_config_word(dev, 0x4a, ®4a);
+ pci_write_config_word(dev, 0x4a, reg4a|u_speed);
+ }
+ } else {
+ if (reg48 & u_flag)
+ pci_write_config_word(dev, 0x48, reg48 & ~u_flag);
+ if (reg4a & a_speed)
+ pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
+ }
+
+ slc90e66_tune_drive(drive, slc90e66_dma_2_pio(speed));
+ return (ide_config_drive_speed(drive, speed));
+}
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+static int slc90e66_config_drive_for_dma (ide_drive_t *drive)
+{
+ u8 speed = ide_dma_speed(drive, slc90e66_ratemask(drive));
+
+ if (!(speed)) {
+ u8 tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL);
+ speed = slc90e66_dma_2_pio(XFER_PIO_0 + tspeed);
+ }
+
+ (void) slc90e66_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ drive->init_speed = 0;
+
+ if (id && (id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (slc90e66_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+
+ goto fast_ata_pio;
+
+ } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+ hwif->tuneproc(drive, 5);
+ return hwif->ide_dma_off_quietly(drive);
+ }
+ /* IORDY not supported */
+ return 0;
+}
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+
+static void __init init_hwif_slc90e66 (ide_hwif_t *hwif)
+{
+ u8 reg47 = 0;
+ u8 mask = hwif->channel ? 0x01 : 0x02; /* bit0:Primary */
+
+ hwif->autodma = 0;
+
+ if (!hwif->irq)
+ hwif->irq = hwif->channel ? 15 : 14;
+
+ hwif->speedproc = &slc90e66_tune_chipset;
+ hwif->tuneproc = &slc90e66_tune_drive;
+
+ pci_read_config_byte(hwif->pci_dev, 0x47, ®47);
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = 1;
+ hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x1f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+ if (!(hwif->udma_four))
+ /* bit[0(1)]: 0:80, 1:40 */
+ hwif->udma_four = (reg47 & mask) ? 0 : 1;
+
+ hwif->ide_dma_check = &slc90e66_config_drive_xfer_rate;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+#endif /* !CONFIG_BLK_DEV_IDEDMA */
+}
+
+static ide_pci_device_t slc90e66_chipset __devinitdata = {
+ .name = "SLC90E66",
+ .init_hwif = init_hwif_slc90e66,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}},
+ .bootable = ON_BOARD,
+};
+
+static int __devinit slc90e66_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &slc90e66_chipset);
+}
+
+static struct pci_device_id slc90e66_pci_tbl[] = {
+ { PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, slc90e66_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "SLC90e66_IDE",
+ .id_table = slc90e66_pci_tbl,
+ .probe = slc90e66_init_one,
+};
+
+static int slc90e66_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(slc90e66_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for SLC90E66 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/triflex.c b/drivers/ide/pci/triflex.c
new file mode 100644
index 0000000..a1df2bf
--- /dev/null
+++ b/drivers/ide/pci/triflex.c
@@ -0,0 +1,188 @@
+/*
+ * 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/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+static int triflex_tune_chipset(ide_drive_t *drive, u8 xferspeed)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 channel_offset = hwif->channel ? 0x74 : 0x70;
+ u16 timing = 0;
+ u32 triflex_timings = 0;
+ u8 unit = (drive->select.b.unit & 0x01);
+ u8 speed = ide_rate_filter(0, xferspeed);
+
+ pci_read_config_dword(dev, channel_offset, &triflex_timings);
+
+ 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:
+ return -1;
+ }
+
+ triflex_timings &= ~(0xFFFF << (16 * unit));
+ triflex_timings |= (timing << (16 * unit));
+
+ pci_write_config_dword(dev, channel_offset, triflex_timings);
+
+ return (ide_config_drive_speed(drive, speed));
+}
+
+static void triflex_tune_drive(ide_drive_t *drive, u8 pio)
+{
+ int use_pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ (void) triflex_tune_chipset(drive, (XFER_PIO_0 + use_pio));
+}
+
+static int triflex_config_drive_for_dma(ide_drive_t *drive)
+{
+ int speed = ide_dma_speed(drive, 0); /* No ultra speeds */
+
+ if (!speed) {
+ u8 pspeed = ide_get_best_pio_mode(drive, 255, 4, NULL);
+ speed = XFER_PIO_0 + pspeed;
+ }
+
+ (void) triflex_tune_chipset(drive, speed);
+ return ide_dma_enable(drive);
+}
+
+static int triflex_config_drive_xfer_rate(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hd_driveid *id = drive->id;
+
+ if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive)) {
+ if (triflex_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);
+ }
+ }
+
+ hwif->tuneproc(drive, 255);
+ return hwif->ide_dma_off_quietly(drive);
+}
+
+static void __init init_hwif_triflex(ide_hwif_t *hwif)
+{
+ hwif->tuneproc = &triflex_tune_drive;
+ hwif->speedproc = &triflex_tune_chipset;
+
+ hwif->atapi_dma = 1;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+ hwif->ide_dma_check = &triflex_config_drive_xfer_rate;
+
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t triflex_device __devinitdata = {
+ .name = "TRIFLEX",
+ .init_hwif = init_hwif_triflex,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
+ .bootable = ON_BOARD,
+};
+
+static int __devinit triflex_init_one(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &triflex_device);
+}
+
+static struct pci_device_id triflex_pci_tbl[] = {
+ { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "TRIFLEX_IDE",
+ .id_table = triflex_pci_tbl,
+ .probe = triflex_init_one,
+};
+
+static int triflex_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(triflex_ide_init);
+
+MODULE_AUTHOR("Torben Mathiasen");
+MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
+MODULE_LICENSE("GPL");
+
+
diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c
new file mode 100644
index 0000000..8b5eea5
--- /dev/null
+++ b/drivers/ide/pci/trm290.c
@@ -0,0 +1,369 @@
+/*
+ * linux/drivers/ide/pci/trm290.c Version 1.02 Mar. 18, 2000
+ *
+ * Copyright (c) 1997-1998 Mark Lord
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * June 22, 2004 - get rid of check_region
+ * Jesper Juhl <juhl-lkml@dif.dk>
+ *
+ */
+
+/*
+ * This module provides support for the bus-master IDE DMA function
+ * of the Tekram TRM290 chip, used on a variety of PCI IDE add-on boards,
+ * including a "Precision Instruments" board. The TRM290 pre-dates
+ * the sff-8038 standard (ide-dma.c) by a few months, and differs
+ * significantly enough to warrant separate routines for some functions,
+ * while re-using others from ide-dma.c.
+ *
+ * EXPERIMENTAL! It works for me (a sample of one).
+ *
+ * Works reliably for me in DMA mode (READs only),
+ * DMA WRITEs are disabled by default (see #define below);
+ *
+ * DMA is not enabled automatically for this chipset,
+ * but can be turned on manually (with "hdparm -d1") at run time.
+ *
+ * I need volunteers with "spare" drives for further testing
+ * and development, and maybe to help figure out the peculiarities.
+ * Even knowing the registers (below), some things behave strangely.
+ */
+
+#define TRM290_NO_DMA_WRITES /* DMA writes seem unreliable sometimes */
+
+/*
+ * TRM-290 PCI-IDE2 Bus Master Chip
+ * ================================
+ * The configuration registers are addressed in normal I/O port space
+ * and are used as follows:
+ *
+ * trm290_base depends on jumper settings, and is probed for by ide-dma.c
+ *
+ * trm290_base+2 when WRITTEN: chiptest register (byte, write-only)
+ * bit7 must always be written as "1"
+ * bits6-2 undefined
+ * bit1 1=legacy_compatible_mode, 0=native_pci_mode
+ * bit0 1=test_mode, 0=normal(default)
+ *
+ * trm290_base+2 when READ: status register (byte, read-only)
+ * bits7-2 undefined
+ * bit1 channel0 busmaster interrupt status 0=none, 1=asserted
+ * bit0 channel0 interrupt status 0=none, 1=asserted
+ *
+ * trm290_base+3 Interrupt mask register
+ * bits7-5 undefined
+ * bit4 legacy_header: 1=present, 0=absent
+ * bit3 channel1 busmaster interrupt status 0=none, 1=asserted (read only)
+ * bit2 channel1 interrupt status 0=none, 1=asserted (read only)
+ * bit1 channel1 interrupt mask: 1=masked, 0=unmasked(default)
+ * bit0 channel0 interrupt mask: 1=masked, 0=unmasked(default)
+ *
+ * trm290_base+1 "CPR" Config Pointer Register (byte)
+ * bit7 1=autoincrement CPR bits 2-0 after each access of CDR
+ * bit6 1=min. 1 wait-state posted write cycle (default), 0=0 wait-state
+ * bit5 0=enabled master burst access (default), 1=disable (write only)
+ * bit4 PCI DEVSEL# timing select: 1=medium(default), 0=fast
+ * bit3 0=primary IDE channel, 1=secondary IDE channel
+ * bits2-0 register index for accesses through CDR port
+ *
+ * trm290_base+0 "CDR" Config Data Register (word)
+ * two sets of seven config registers,
+ * selected by CPR bit 3 (channel) and CPR bits 2-0 (index 0 to 6),
+ * each index defined below:
+ *
+ * Index-0 Base address register for command block (word)
+ * defaults: 0x1f0 for primary, 0x170 for secondary
+ *
+ * Index-1 general config register (byte)
+ * bit7 1=DMA enable, 0=DMA disable
+ * bit6 1=activate IDE_RESET, 0=no action (default)
+ * bit5 1=enable IORDY, 0=disable IORDY (default)
+ * bit4 0=16-bit data port(default), 1=8-bit (XT) data port
+ * bit3 interrupt polarity: 1=active_low, 0=active_high(default)
+ * bit2 power-saving-mode(?): 1=enable, 0=disable(default) (write only)
+ * bit1 bus_master_mode(?): 1=enable, 0=disable(default)
+ * bit0 enable_io_ports: 1=enable(default), 0=disable
+ *
+ * Index-2 read-ahead counter preload bits 0-7 (byte, write only)
+ * bits7-0 bits7-0 of readahead count
+ *
+ * Index-3 read-ahead config register (byte, write only)
+ * bit7 1=enable_readahead, 0=disable_readahead(default)
+ * bit6 1=clear_FIFO, 0=no_action
+ * bit5 undefined
+ * bit4 mode4 timing control: 1=enable, 0=disable(default)
+ * bit3 undefined
+ * bit2 undefined
+ * bits1-0 bits9-8 of read-ahead count
+ *
+ * Index-4 base address register for control block (word)
+ * defaults: 0x3f6 for primary, 0x376 for secondary
+ *
+ * Index-5 data port timings (shared by both drives) (byte)
+ * standard PCI "clk" (clock) counts, default value = 0xf5
+ *
+ * bits7-6 setup time: 00=1clk, 01=2clk, 10=3clk, 11=4clk
+ * bits5-3 hold time: 000=1clk, 001=2clk, 010=3clk,
+ * 011=4clk, 100=5clk, 101=6clk,
+ * 110=8clk, 111=12clk
+ * bits2-0 active time: 000=2clk, 001=3clk, 010=4clk,
+ * 011=5clk, 100=6clk, 101=8clk,
+ * 110=12clk, 111=16clk
+ *
+ * Index-6 command/control port timings (shared by both drives) (byte)
+ * same layout as Index-5, default value = 0xde
+ *
+ * Suggested CDR programming for PIO mode0 (600ns):
+ * 0x01f0,0x21,0xff,0x80,0x03f6,0xf5,0xde ; primary
+ * 0x0170,0x21,0xff,0x80,0x0376,0xf5,0xde ; secondary
+ *
+ * Suggested CDR programming for PIO mode3 (180ns):
+ * 0x01f0,0x21,0xff,0x80,0x03f6,0x09,0xde ; primary
+ * 0x0170,0x21,0xff,0x80,0x0376,0x09,0xde ; secondary
+ *
+ * Suggested CDR programming for PIO mode4 (120ns):
+ * 0x01f0,0x21,0xff,0x80,0x03f6,0x00,0xde ; primary
+ * 0x0170,0x21,0xff,0x80,0x0376,0x00,0xde ; secondary
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <linux/hdreg.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+
+static void trm290_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u16 reg = 0;
+ unsigned long flags;
+
+ /* select PIO or DMA */
+ reg = use_dma ? (0x21 | 0x82) : (0x21 & ~0x82);
+
+ local_irq_save(flags);
+
+ if (reg != hwif->select_data) {
+ hwif->select_data = reg;
+ /* set PIO/DMA */
+ hwif->OUTB(0x51|(hwif->channel<<3), hwif->config_data+1);
+ hwif->OUTW(reg & 0xff, hwif->config_data);
+ }
+
+ /* enable IRQ if not probing */
+ if (drive->present) {
+ reg = hwif->INW(hwif->config_data + 3);
+ reg &= 0x13;
+ reg &= ~(1 << hwif->channel);
+ hwif->OUTW(reg, hwif->config_data+3);
+ }
+
+ local_irq_restore(flags);
+}
+
+static void trm290_selectproc (ide_drive_t *drive)
+{
+ trm290_prepare_drive(drive, drive->using_dma);
+}
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+
+ if (HWGROUP(drive)->handler != NULL) /* paranoia check */
+ BUG();
+ ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL);
+ /* issue cmd to drive */
+ hwif->OUTB(command, IDE_COMMAND_REG);
+}
+
+static int trm290_ide_dma_setup(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct request *rq = hwif->hwgroup->rq;
+ unsigned int count, rw;
+
+ if (rq_data_dir(rq)) {
+#ifdef TRM290_NO_DMA_WRITES
+ /* always use PIO for writes */
+ trm290_prepare_drive(drive, 0); /* select PIO xfer */
+ return 1;
+#endif
+ rw = 1;
+ } else
+ rw = 2;
+
+ if (!(count = ide_build_dmatable(drive, rq))) {
+ /* try PIO instead of DMA */
+ trm290_prepare_drive(drive, 0); /* select PIO xfer */
+ return 1;
+ }
+ /* select DMA xfer */
+ trm290_prepare_drive(drive, 1);
+ hwif->OUTL(hwif->dmatable_dma|rw, hwif->dma_command);
+ drive->waiting_for_dma = 1;
+ /* start DMA */
+ hwif->OUTW((count * 2) - 1, hwif->dma_status);
+ return 0;
+}
+
+static void trm290_ide_dma_start(ide_drive_t *drive)
+{
+}
+
+static int trm290_ide_dma_end (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u16 status = 0;
+
+ drive->waiting_for_dma = 0;
+ /* purge DMA mappings */
+ ide_destroy_dmatable(drive);
+ status = hwif->INW(hwif->dma_status);
+ return (status != 0x00ff);
+}
+
+static int trm290_ide_dma_test_irq (ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u16 status = 0;
+
+ status = hwif->INW(hwif->dma_status);
+ return (status == 0x00ff);
+}
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+
+/*
+ * Invoked from ide-dma.c at boot time.
+ */
+static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
+{
+ unsigned int cfgbase = 0;
+ unsigned long flags;
+ u8 reg = 0;
+ struct pci_dev *dev = hwif->pci_dev;
+
+ hwif->no_lba48 = 1;
+ hwif->chipset = ide_trm290;
+ cfgbase = pci_resource_start(dev, 4);
+ if ((dev->class & 5) && cfgbase) {
+ hwif->config_data = cfgbase;
+ printk(KERN_INFO "TRM290: chip config base at 0x%04lx\n",
+ hwif->config_data);
+ } else {
+ hwif->config_data = 0x3df0;
+ printk(KERN_INFO "TRM290: using default config base at 0x%04lx\n",
+ hwif->config_data);
+ }
+
+ local_irq_save(flags);
+ /* put config reg into first byte of hwif->select_data */
+ hwif->OUTB(0x51|(hwif->channel<<3), hwif->config_data+1);
+ /* select PIO as default */
+ hwif->select_data = 0x21;
+ hwif->OUTB(hwif->select_data, hwif->config_data);
+ /* get IRQ info */
+ reg = hwif->INB(hwif->config_data+3);
+ /* mask IRQs for both ports */
+ reg = (reg & 0x10) | 0x03;
+ hwif->OUTB(reg, hwif->config_data+3);
+ local_irq_restore(flags);
+
+ if ((reg & 0x10))
+ /* legacy mode */
+ hwif->irq = hwif->channel ? 15 : 14;
+ else if (!hwif->irq && hwif->mate && hwif->mate->irq)
+ /* sharing IRQ with mate */
+ hwif->irq = hwif->mate->irq;
+
+ ide_setup_dma(hwif, (hwif->config_data + 4) ^ (hwif->channel ? 0x0080 : 0x0000), 3);
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+ hwif->dma_setup = &trm290_ide_dma_setup;
+ hwif->dma_exec_cmd = &trm290_ide_dma_exec_cmd;
+ hwif->dma_start = &trm290_ide_dma_start;
+ hwif->ide_dma_end = &trm290_ide_dma_end;
+ hwif->ide_dma_test_irq = &trm290_ide_dma_test_irq;
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+
+ hwif->selectproc = &trm290_selectproc;
+ hwif->autodma = 0; /* play it safe for now */
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+#if 1
+ {
+ /*
+ * My trm290-based card doesn't seem to work with all possible values
+ * for the control basereg, so this kludge ensures that we use only
+ * values that are known to work. Ugh. -ml
+ */
+ u16 new, old, compat = hwif->channel ? 0x374 : 0x3f4;
+ static u16 next_offset = 0;
+ u8 old_mask;
+
+ hwif->OUTB(0x54|(hwif->channel<<3), hwif->config_data+1);
+ old = hwif->INW(hwif->config_data);
+ old &= ~1;
+ old_mask = hwif->INB(old+2);
+ if (old != compat && old_mask == 0xff) {
+ /* leave lower 10 bits untouched */
+ compat += (next_offset += 0x400);
+ hwif->io_ports[IDE_CONTROL_OFFSET] = compat + 2;
+ hwif->OUTW(compat|1, hwif->config_data);
+ new = hwif->INW(hwif->config_data);
+ printk(KERN_INFO "%s: control basereg workaround: "
+ "old=0x%04x, new=0x%04x\n",
+ hwif->name, old, new & ~1);
+ }
+ }
+#endif
+}
+
+static ide_pci_device_t trm290_chipset __devinitdata = {
+ .name = "TRM290",
+ .init_hwif = init_hwif_trm290,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = ON_BOARD,
+};
+
+static int __devinit trm290_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &trm290_chipset);
+}
+
+static struct pci_device_id trm290_pci_tbl[] = {
+ { PCI_VENDOR_ID_TEKRAM, PCI_DEVICE_ID_TEKRAM_DC290, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, trm290_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "TRM290_IDE",
+ .id_table = trm290_pci_tbl,
+ .probe = trm290_init_one,
+};
+
+static int trm290_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(trm290_ide_init);
+
+MODULE_AUTHOR("Mark Lord");
+MODULE_DESCRIPTION("PCI driver module for Tekram TRM290 IDE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
new file mode 100644
index 0000000..069dbff
--- /dev/null
+++ b/drivers/ide/pci/via82cxxx.c
@@ -0,0 +1,656 @@
+/*
+ *
+ * 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
+ *
+ * Documentation:
+ * Obsolete device documentation publically available from via.com.tw
+ * Current device documentation available under NDA only
+ */
+
+/*
+ * 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.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+#include <asm/processor.h>
+#endif
+
+#include "ide-timing.h"
+
+#define DISPLAY_VIA_TIMINGS
+
+#define VIA_IDE_ENABLE 0x40
+#define VIA_IDE_CONFIG 0x41
+#define VIA_FIFO_CONFIG 0x43
+#define VIA_MISC_1 0x44
+#define VIA_MISC_2 0x45
+#define VIA_MISC_3 0x46
+#define VIA_DRIVE_TIMING 0x48
+#define VIA_8BIT_TIMING 0x4e
+#define VIA_ADDRESS_SETUP 0x4c
+#define VIA_UDMA_TIMING 0x50
+
+#define VIA_UDMA 0x007
+#define VIA_UDMA_NONE 0x000
+#define VIA_UDMA_33 0x001
+#define VIA_UDMA_66 0x002
+#define VIA_UDMA_100 0x003
+#define VIA_UDMA_133 0x004
+#define VIA_BAD_PREQ 0x010 /* Crashes if PREQ# till DDACK# set */
+#define VIA_BAD_CLK66 0x020 /* 66 MHz clock doesn't work correctly */
+#define VIA_SET_FIFO 0x040 /* Needs to have FIFO split set */
+#define VIA_NO_UNMASK 0x080 /* Doesn't work with IRQ unmasking on */
+#define VIA_BAD_ID 0x100 /* Has wrong vendor ID (0x1107) */
+#define VIA_BAD_AST 0x200 /* Don't touch Address Setup Timing */
+
+/*
+ * VIA SouthBridge chips.
+ */
+
+static struct via_isa_bridge {
+ char *name;
+ u16 id;
+ u8 rev_min;
+ u8 rev_max;
+ u16 flags;
+} via_isa_bridges[] = {
+ { "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 }
+};
+
+static struct via_isa_bridge *via_config;
+static unsigned int via_80w;
+static unsigned int via_clock;
+static char *via_dma[] = { "MWDMA16", "UDMA33", "UDMA66", "UDMA100", "UDMA133" };
+
+/*
+ * VIA /proc entry.
+ */
+
+#if defined(DISPLAY_VIA_TIMINGS) && defined(CONFIG_PROC_FS)
+
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static u8 via_proc = 0;
+static unsigned long via_base;
+static struct pci_dev *bmide_dev, *isa_dev;
+
+static char *via_control3[] = { "No limit", "64", "128", "192" };
+
+#define via_print(format, arg...) p += sprintf(p, format "\n" , ## arg)
+#define via_print_drive(name, format, arg...)\
+ p += sprintf(p, name); for (i = 0; i < 4; i++) p += sprintf(p, format, ## arg); p += sprintf(p, "\n");
+
+
+/**
+ * via_get_info - generate via /proc file
+ * @buffer: buffer for data
+ * @addr: set to start of data to use
+ * @offset: current file offset
+ * @count: size of read
+ *
+ * Fills in buffer with the debugging/configuration information for
+ * the VIA chipset tuning and attached drives
+ */
+
+static int via_get_info(char *buffer, char **addr, off_t offset, int count)
+{
+ int speed[4], cycle[4], setup[4], active[4], recover[4], den[4],
+ uen[4], udma[4], umul[4], active8b[4], recover8b[4];
+ struct pci_dev *dev = bmide_dev;
+ unsigned int v, u, i;
+ int len;
+ u16 c, w;
+ u8 t, x;
+ char *p = buffer;
+
+ via_print("----------VIA BusMastering IDE Configuration"
+ "----------------");
+
+ via_print("Driver Version: 3.38");
+ via_print("South Bridge: VIA %s",
+ via_config->name);
+
+ pci_read_config_byte(isa_dev, PCI_REVISION_ID, &t);
+ pci_read_config_byte(dev, PCI_REVISION_ID, &x);
+ via_print("Revision: ISA %#x IDE %#x", t, x);
+ via_print("Highest DMA rate: %s",
+ via_dma[via_config->flags & VIA_UDMA]);
+
+ via_print("BM-DMA base: %#lx", via_base);
+ via_print("PCI clock: %d.%dMHz",
+ via_clock / 1000, via_clock / 100 % 10);
+
+ pci_read_config_byte(dev, VIA_MISC_1, &t);
+ via_print("Master Read Cycle IRDY: %dws",
+ (t & 64) >> 6);
+ via_print("Master Write Cycle IRDY: %dws",
+ (t & 32) >> 5);
+ via_print("BM IDE Status Register Read Retry: %s",
+ (t & 8) ? "yes" : "no");
+
+ pci_read_config_byte(dev, VIA_MISC_3, &t);
+ via_print("Max DRDY Pulse Width: %s%s",
+ via_control3[(t & 0x03)], (t & 0x03) ? " PCI clocks" : "");
+
+ via_print("-----------------------Primary IDE"
+ "-------Secondary IDE------");
+ via_print("Read DMA FIFO flush: %10s%20s",
+ (t & 0x80) ? "yes" : "no", (t & 0x40) ? "yes" : "no");
+ via_print("End Sector FIFO flush: %10s%20s",
+ (t & 0x20) ? "yes" : "no", (t & 0x10) ? "yes" : "no");
+
+ pci_read_config_byte(dev, VIA_IDE_CONFIG, &t);
+ via_print("Prefetch Buffer: %10s%20s",
+ (t & 0x80) ? "yes" : "no", (t & 0x20) ? "yes" : "no");
+ via_print("Post Write Buffer: %10s%20s",
+ (t & 0x40) ? "yes" : "no", (t & 0x10) ? "yes" : "no");
+
+ pci_read_config_byte(dev, VIA_IDE_ENABLE, &t);
+ via_print("Enabled: %10s%20s",
+ (t & 0x02) ? "yes" : "no", (t & 0x01) ? "yes" : "no");
+
+ c = inb(via_base + 0x02) | (inb(via_base + 0x0a) << 8);
+ via_print("Simplex only: %10s%20s",
+ (c & 0x80) ? "yes" : "no", (c & 0x8000) ? "yes" : "no");
+
+ via_print("Cable Type: %10s%20s",
+ (via_80w & 1) ? "80w" : "40w", (via_80w & 2) ? "80w" : "40w");
+
+ via_print("-------------------drive0----drive1"
+ "----drive2----drive3-----");
+
+ pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
+ pci_read_config_dword(dev, VIA_DRIVE_TIMING, &v);
+ pci_read_config_word(dev, VIA_8BIT_TIMING, &w);
+
+ if (via_config->flags & VIA_UDMA)
+ pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
+ else u = 0;
+
+ for (i = 0; i < 4; i++) {
+
+ setup[i] = ((t >> ((3 - i) << 1)) & 0x3) + 1;
+ recover8b[i] = ((w >> ((1 - (i >> 1)) << 3)) & 0xf) + 1;
+ active8b[i] = ((w >> (((1 - (i >> 1)) << 3) + 4)) & 0xf) + 1;
+ active[i] = ((v >> (((3 - i) << 3) + 4)) & 0xf) + 1;
+ recover[i] = ((v >> ((3 - i) << 3)) & 0xf) + 1;
+ udma[i] = ((u >> ((3 - i) << 3)) & 0x7) + 2;
+ umul[i] = ((u >> (((3 - i) & 2) << 3)) & 0x8) ? 1 : 2;
+ uen[i] = ((u >> ((3 - i) << 3)) & 0x20);
+ den[i] = (c & ((i & 1) ? 0x40 : 0x20) << ((i & 2) << 2));
+
+ speed[i] = 2 * via_clock / (active[i] + recover[i]);
+ cycle[i] = 1000000 * (active[i] + recover[i]) / via_clock;
+
+ if (!uen[i] || !den[i])
+ continue;
+
+ switch (via_config->flags & VIA_UDMA) {
+
+ case VIA_UDMA_33:
+ speed[i] = 2 * via_clock / udma[i];
+ cycle[i] = 1000000 * udma[i] / via_clock;
+ break;
+
+ case VIA_UDMA_66:
+ speed[i] = 4 * via_clock / (udma[i] * umul[i]);
+ cycle[i] = 500000 * (udma[i] * umul[i]) / via_clock;
+ break;
+
+ case VIA_UDMA_100:
+ speed[i] = 6 * via_clock / udma[i];
+ cycle[i] = 333333 * udma[i] / via_clock;
+ break;
+
+ case VIA_UDMA_133:
+ speed[i] = 8 * via_clock / udma[i];
+ cycle[i] = 250000 * udma[i] / via_clock;
+ break;
+ }
+ }
+
+ via_print_drive("Transfer Mode: ", "%10s",
+ den[i] ? (uen[i] ? "UDMA" : "DMA") : "PIO");
+
+ via_print_drive("Address Setup: ", "%8dns",
+ 1000000 * setup[i] / via_clock);
+ via_print_drive("Cmd Active: ", "%8dns",
+ 1000000 * active8b[i] / via_clock);
+ via_print_drive("Cmd Recovery: ", "%8dns",
+ 1000000 * recover8b[i] / via_clock);
+ via_print_drive("Data Active: ", "%8dns",
+ 1000000 * active[i] / via_clock);
+ via_print_drive("Data Recovery: ", "%8dns",
+ 1000000 * recover[i] / via_clock);
+ via_print_drive("Cycle Time: ", "%8dns",
+ cycle[i]);
+ via_print_drive("Transfer Rate: ", "%4d.%dMB/s",
+ speed[i] / 1000, speed[i] / 100 % 10);
+
+ /* hoping it is less than 4K... */
+ len = (p - buffer) - offset;
+ *addr = buffer + offset;
+
+ return len > count ? count : len;
+}
+
+#endif /* DISPLAY_VIA_TIMINGS && CONFIG_PROC_FS */
+
+/**
+ * via_set_speed - write timing registers
+ * @dev: PCI device
+ * @dn: device
+ * @timing: IDE timing data to use
+ *
+ * via_set_speed writes timing values to the chipset registers
+ */
+
+static void via_set_speed(struct pci_dev *dev, u8 dn, struct ide_timing *timing)
+{
+ u8 t;
+
+ if (~via_config->flags & VIA_BAD_AST) {
+ pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
+ t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
+ pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t);
+ }
+
+ pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)),
+ ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1));
+
+ pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn),
+ ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1));
+
+ switch (via_config->flags & VIA_UDMA) {
+ case VIA_UDMA_33: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
+ case VIA_UDMA_66: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break;
+ case VIA_UDMA_100: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
+ case VIA_UDMA_133: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
+ default: return;
+ }
+
+ pci_write_config_byte(dev, VIA_UDMA_TIMING + (3 - dn), t);
+}
+
+/**
+ * via_set_drive - configure transfer mode
+ * @drive: Drive to set up
+ * @speed: desired speed
+ *
+ * via_set_drive() computes timing values configures the drive and
+ * the chipset to a desired transfer mode. It also can be called
+ * by upper layers.
+ */
+
+static int via_set_drive(ide_drive_t *drive, u8 speed)
+{
+ ide_drive_t *peer = HWIF(drive)->drives + (~drive->dn & 1);
+ struct ide_timing t, p;
+ unsigned int T, UT;
+
+ if (speed != XFER_PIO_SLOW)
+ ide_config_drive_speed(drive, speed);
+
+ T = 1000000000 / via_clock;
+
+ switch (via_config->flags & VIA_UDMA) {
+ case VIA_UDMA_33: UT = T; break;
+ case VIA_UDMA_66: UT = T/2; break;
+ case VIA_UDMA_100: UT = T/3; break;
+ case VIA_UDMA_133: UT = T/4; break;
+ default: UT = T;
+ }
+
+ ide_timing_compute(drive, speed, &t, T, UT);
+
+ if (peer->present) {
+ ide_timing_compute(peer, peer->current_speed, &p, T, UT);
+ ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
+ }
+
+ via_set_speed(HWIF(drive)->pci_dev, drive->dn, &t);
+
+ if (!drive->init_speed)
+ drive->init_speed = speed;
+ drive->current_speed = speed;
+
+ return 0;
+}
+
+/**
+ * via82cxxx_tune_drive - PIO setup
+ * @drive: drive to set up
+ * @pio: mode to use (255 for 'best possible')
+ *
+ * A callback from the upper layers for PIO-only tuning.
+ */
+
+static void via82cxxx_tune_drive(ide_drive_t *drive, u8 pio)
+{
+ if (pio == 255) {
+ via_set_drive(drive,
+ ide_find_best_mode(drive, XFER_PIO | XFER_EPIO));
+ return;
+ }
+
+ via_set_drive(drive, XFER_PIO_0 + min_t(u8, pio, 5));
+}
+
+/**
+ * via82cxxx_ide_dma_check - set up for DMA if possible
+ * @drive: IDE drive to set up
+ *
+ * Set up the drive for the highest supported speed considering the
+ * driver, controller and cable
+ */
+
+static int via82cxxx_ide_dma_check (ide_drive_t *drive)
+{
+ u16 w80 = HWIF(drive)->udma_four;
+
+ u16 speed = ide_find_best_mode(drive,
+ XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA |
+ (via_config->flags & VIA_UDMA ? XFER_UDMA : 0) |
+ (w80 && (via_config->flags & VIA_UDMA) >= VIA_UDMA_66 ? XFER_UDMA_66 : 0) |
+ (w80 && (via_config->flags & VIA_UDMA) >= VIA_UDMA_100 ? XFER_UDMA_100 : 0) |
+ (w80 && (via_config->flags & VIA_UDMA) >= VIA_UDMA_133 ? XFER_UDMA_133 : 0));
+
+ via_set_drive(drive, speed);
+
+ if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
+ return HWIF(drive)->ide_dma_on(drive);
+ return HWIF(drive)->ide_dma_off_quietly(drive);
+}
+
+/**
+ * init_chipset_via82cxxx - initialization handler
+ * @dev: PCI device
+ * @name: Name of interface
+ *
+ * The initialization callback. Here we determine the IDE chip type
+ * and initialize its drive independent registers.
+ */
+
+static unsigned int __init init_chipset_via82cxxx(struct pci_dev *dev, const char *name)
+{
+ struct pci_dev *isa = NULL;
+ u8 t, v;
+ unsigned int u;
+ int i;
+
+ /*
+ * Find the ISA bridge to see how good the IDE is.
+ */
+
+ for (via_config = via_isa_bridges; via_config->id; via_config++)
+ if ((isa = pci_find_device(PCI_VENDOR_ID_VIA +
+ !!(via_config->flags & VIA_BAD_ID),
+ via_config->id, NULL))) {
+
+ pci_read_config_byte(isa, PCI_REVISION_ID, &t);
+ if (t >= via_config->rev_min &&
+ t <= via_config->rev_max)
+ break;
+ }
+
+ if (!via_config->id) {
+ printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n");
+ return -ENODEV;
+ }
+
+ /*
+ * Check 80-wire cable presence and setup Clk66.
+ */
+
+ switch (via_config->flags & VIA_UDMA) {
+
+ case VIA_UDMA_66:
+ /* Enable Clk66 */
+ pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
+ pci_write_config_dword(dev, VIA_UDMA_TIMING, u|0x80008);
+ for (i = 24; i >= 0; i -= 8)
+ if (((u >> (i & 16)) & 8) &&
+ ((u >> i) & 0x20) &&
+ (((u >> i) & 7) < 2)) {
+ /*
+ * 2x PCI clock and
+ * UDMA w/ < 3T/cycle
+ */
+ via_80w |= (1 << (1 - (i >> 4)));
+ }
+ break;
+
+ case VIA_UDMA_100:
+ pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
+ for (i = 24; i >= 0; i -= 8)
+ if (((u >> i) & 0x10) ||
+ (((u >> i) & 0x20) &&
+ (((u >> i) & 7) < 4))) {
+ /* BIOS 80-wire bit or
+ * UDMA w/ < 60ns/cycle
+ */
+ via_80w |= (1 << (1 - (i >> 4)));
+ }
+ break;
+
+ case VIA_UDMA_133:
+ pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
+ for (i = 24; i >= 0; i -= 8)
+ if (((u >> i) & 0x10) ||
+ (((u >> i) & 0x20) &&
+ (((u >> i) & 7) < 6))) {
+ /* BIOS 80-wire bit or
+ * UDMA w/ < 60ns/cycle
+ */
+ via_80w |= (1 << (1 - (i >> 4)));
+ }
+ break;
+
+ }
+
+ /* Disable Clk66 */
+ if (via_config->flags & VIA_BAD_CLK66) {
+ /* Would cause trouble on 596a and 686 */
+ pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
+ pci_write_config_dword(dev, VIA_UDMA_TIMING, u & ~0x80008);
+ }
+
+ /*
+ * Check whether interfaces are enabled.
+ */
+
+ pci_read_config_byte(dev, VIA_IDE_ENABLE, &v);
+
+ /*
+ * Set up FIFO sizes and thresholds.
+ */
+
+ pci_read_config_byte(dev, VIA_FIFO_CONFIG, &t);
+
+ /* Disable PREQ# till DDACK# */
+ if (via_config->flags & VIA_BAD_PREQ) {
+ /* Would crash on 586b rev 41 */
+ t &= 0x7f;
+ }
+
+ /* Fix FIFO split between channels */
+ if (via_config->flags & VIA_SET_FIFO) {
+ t &= (t & 0x9f);
+ switch (v & 3) {
+ case 2: t |= 0x00; break; /* 16 on primary */
+ case 1: t |= 0x60; break; /* 16 on secondary */
+ case 3: t |= 0x20; break; /* 8 pri 8 sec */
+ }
+ }
+
+ pci_write_config_byte(dev, VIA_FIFO_CONFIG, t);
+
+ /*
+ * Determine system bus clock.
+ */
+
+ via_clock = system_bus_clock() * 1000;
+
+ switch (via_clock) {
+ case 33000: via_clock = 33333; break;
+ case 37000: via_clock = 37500; break;
+ case 41000: via_clock = 41666; break;
+ }
+
+ if (via_clock < 20000 || via_clock > 50000) {
+ printk(KERN_WARNING "VP_IDE: User given PCI clock speed "
+ "impossible (%d), using 33 MHz instead.\n", via_clock);
+ printk(KERN_WARNING "VP_IDE: Use ide0=ata66 if you want "
+ "to assume 80-wire cable.\n");
+ via_clock = 33333;
+ }
+
+ /*
+ * Print the boot message.
+ */
+
+ pci_read_config_byte(isa, PCI_REVISION_ID, &t);
+ printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %s "
+ "controller on pci%s\n",
+ via_config->name, t,
+ via_dma[via_config->flags & VIA_UDMA],
+ pci_name(dev));
+
+ /*
+ * Setup /proc/ide/via entry.
+ */
+
+#if defined(DISPLAY_VIA_TIMINGS) && defined(CONFIG_PROC_FS)
+ if (!via_proc) {
+ via_base = pci_resource_start(dev, 4);
+ bmide_dev = dev;
+ isa_dev = isa;
+ ide_pci_create_host_proc("via", via_get_info);
+ via_proc = 1;
+ }
+#endif /* DISPLAY_VIA_TIMINGS && CONFIG_PROC_FS */
+ return 0;
+}
+
+static void __init init_hwif_via82cxxx(ide_hwif_t *hwif)
+{
+ int i;
+
+ hwif->autodma = 0;
+
+ hwif->tuneproc = &via82cxxx_tune_drive;
+ hwif->speedproc = &via_set_drive;
+
+
+#if defined(CONFIG_PPC_MULTIPLATFORM) && defined(CONFIG_PPC32)
+ if(_machine == _MACH_chrp && _chrp_type == _CHRP_Pegasos) {
+ hwif->irq = hwif->channel ? 15 : 14;
+ }
+#endif
+
+ for (i = 0; i < 2; i++) {
+ hwif->drives[i].io_32bit = 1;
+ hwif->drives[i].unmask = (via_config->flags & VIA_NO_UNMASK) ? 0 : 1;
+ hwif->drives[i].autotune = 1;
+ hwif->drives[i].dn = hwif->channel * 2 + i;
+ }
+
+ if (!hwif->dma_base)
+ return;
+
+ hwif->atapi_dma = 1;
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+ hwif->swdma_mask = 0x07;
+
+ if (!hwif->udma_four)
+ hwif->udma_four = (via_80w >> hwif->channel) & 1;
+ hwif->ide_dma_check = &via82cxxx_ide_dma_check;
+ if (!noautodma)
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+}
+
+static ide_pci_device_t via82cxxx_chipset __devinitdata = {
+ .name = "VP_IDE",
+ .init_chipset = init_chipset_via82cxxx,
+ .init_hwif = init_hwif_via82cxxx,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
+ .bootable = ON_BOARD,
+};
+
+static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ return ide_setup_pci_device(dev, &via82cxxx_chipset);
+}
+
+static struct pci_device_id via_pci_tbl[] = {
+ { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, via_pci_tbl);
+
+static struct pci_driver driver = {
+ .name = "VIA_IDE",
+ .id_table = via_pci_tbl,
+ .probe = via_init_one,
+};
+
+static int via_ide_init(void)
+{
+ return ide_pci_register_driver(&driver);
+}
+
+module_init(via_ide_init);
+
+MODULE_AUTHOR("Vojtech Pavlik, Michel Aubry, Jeff Garzik, Andre Hedrick");
+MODULE_DESCRIPTION("PCI driver module for VIA IDE");
+MODULE_LICENSE("GPL");