ide: add IDE_HFLAG_CLEAR_SIMPLEX host flag
* Rename 'simplex_stat' variable to 'dma_stat' in ide_get_or_set_dma_base().
* Factor out code for forcing host out of "simplex" mode from
ide_get_or_set_dma_base() to ide_pci_clear_simplex() helper.
* Add IDE_HFLAG_CLEAR_SIMPLEX host flag and set it in alim15x3 (for M5229),
amd74xx (for AMD 7409), cmd64x (for CMD643), generic (for Netcell) and
serverworks (for CSB5) host drivers.
* Make ide_get_or_set_dma_base() test for IDE_HFLAG_CLEAR_SIMPLEX host flag
instead of checking dev->device (BTW the code was buggy because it didn't
check for dev->vendor, luckily none of these PCI Device IDs was used by
some other vendor for PCI IDE controller).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 9dd7cb4..0b65a2c 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -775,7 +775,7 @@
};
struct ide_port_info d = ali15x3_chipset;
- u8 rev = dev->revision;
+ u8 rev = dev->revision, idx = id->driver_data;
if (pci_dev_present(ati_rs100))
printk(KERN_WARNING "alim15x3: ATI Radeon IGP Northbridge is not yet fully tested.\n");
@@ -798,6 +798,9 @@
d.udma_mask = ATA_UDMA6;
}
+ if (idx == 0)
+ d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
+
#if defined(CONFIG_SPARC64)
d.init_hwif = init_hwif_common_ali15x3;
#endif /* CONFIG_SPARC64 */
@@ -807,7 +810,7 @@
static const struct pci_device_id alim15x3_pci_tbl[] = {
{ PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), 0 },
- { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), 0 },
+ { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), 1 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl);
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index 13c9f67..2e8cbca 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -295,6 +295,7 @@
if (idx == 1) {
if (dev->revision <= 7)
d.swdma_mask = 0;
+ d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
} else if (idx == 4) {
if (dev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
dev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index cd4eb9d..effd79a 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -443,7 +443,9 @@
.init_chipset = init_chipset_cmd64x,
.init_hwif = init_hwif_cmd64x,
.enablebits = {{0x00,0x00,0x00}, {0x51,0x08,0x08}},
- .host_flags = IDE_HFLAG_ABUSE_PREFETCH | IDE_HFLAG_BOOTABLE,
+ .host_flags = IDE_HFLAG_CLEAR_SIMPLEX |
+ IDE_HFLAG_ABUSE_PREFETCH |
+ IDE_HFLAG_BOOTABLE,
.pio_mask = ATA_PIO5,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = 0x00, /* no udma */
diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c
index 0688569..22ef348 100644
--- a/drivers/ide/pci/generic.c
+++ b/drivers/ide/pci/generic.c
@@ -104,7 +104,8 @@
{ /* 14 */
.name = "Revolution",
- .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
+ .host_flags = IDE_HFLAG_CLEAR_SIMPLEX |
+ IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
.swdma_mask = ATA_SWDMA2,
.mwdma_mask = ATA_MWDMA2,
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index 877c09b..bf01c38 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -418,7 +418,9 @@
d = serverworks_chipsets[idx];
- if (idx == 2 || idx == 3) {
+ if (idx == 1)
+ d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
+ else if (idx == 2 || idx == 3) {
if ((PCI_FUNC(dev->devfn) & 1) == 0) {
if (pci_resource_start(dev, 0) != 0x01f1)
d.host_flags &= ~IDE_HFLAG_BOOTABLE;