Commit b94b898f authored by Brandon Philips's avatar Brandon Philips Committed by Bartlomiej Zolnierkiewicz

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.gzTested-by: default avatarShawn Lin <shawn@dmp.com.tw>
Signed-off-by: default avatarBrandon Philips <bphilips@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 9b896033
......@@ -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, },
};
......
......@@ -2174,6 +2174,7 @@
#define PCI_DEVICE_ID_RDC_R6040 0x6040
#define PCI_DEVICE_ID_RDC_R6060 0x6060
#define PCI_DEVICE_ID_RDC_R6061 0x6061
#define PCI_DEVICE_ID_RDC_D1010 0x1010
#define PCI_VENDOR_ID_LENOVO 0x17aa
......
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