diff options
| author | Brandon Philips <brandon@ifup.org> | 2009-01-14 19:19:02 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-01-14 19:19:02 +0100 |
| commit | b94b898f3107046b5c97c556e23529283ea5eadd (patch) | |
| tree | 5c81cc20a8a8b18054bb1ea3bd603b858eb72283 /drivers | |
| parent | ide: fix accidental LOCKDEP breakage caused by local_irq_set() removal (diff) | |
| download | linux-b94b898f3107046b5c97c556e23529283ea5eadd.tar.xz linux-b94b898f3107046b5c97c556e23529283ea5eadd.zip | |
it821x: Add ultra_mask quirk for Vortex86SX
On Vortex86SX with IDE controller revision 0x11 ultra DMA must be
disabled. This patch was tested by DMP and seems to work.
It is a cleaned up version of their older Kernel patch:
http://www.dmp.com.tw/tech/vortex86sx/patch-2.6.24-DMP.gz
Tested-by: Shawn Lin <shawn@dmp.com.tw>
Signed-off-by: Brandon Philips <bphilips@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/it821x.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c index 0be27ac1f077..983440a9a5f7 100644 --- a/drivers/ide/it821x.c +++ b/drivers/ide/it821x.c @@ -68,6 +68,8 @@ #define DRV_NAME "it821x" +#define QUIRK_VORTEX86 1 + struct it821x_dev { unsigned int smart:1, /* Are we in smart raid mode */ @@ -79,6 +81,7 @@ struct it821x_dev u16 pio[2]; /* Cached PIO values */ u16 mwdma[2]; /* Cached MWDMA values */ u16 udma[2]; /* Cached UDMA values (per drive) */ + u16 quirks; }; #define ATA_66 0 @@ -577,6 +580,12 @@ static void __devinit init_hwif_it821x(ide_hwif_t *hwif) hwif->ultra_mask = ATA_UDMA6; hwif->mwdma_mask = ATA_MWDMA2; + + /* Vortex86SX quirk: prevent Ultra-DMA mode to fix BadCRC issue */ + if (idev->quirks & QUIRK_VORTEX86) { + if (dev->revision == 0x11) + hwif->ultra_mask = 0; + } } static void it8212_disable_raid(struct pci_dev *dev) @@ -649,6 +658,8 @@ static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_devic return -ENOMEM; } + itdevs->quirks = id->driver_data; + rc = ide_pci_init_one(dev, &it821x_chipset, itdevs); if (rc) kfree(itdevs); @@ -668,6 +679,7 @@ static void __devexit it821x_remove(struct pci_dev *dev) static const struct pci_device_id it821x_pci_tbl[] = { { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211), 0 }, { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212), 0 }, + { PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1010), QUIRK_VORTEX86 }, { 0, }, }; |