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authorTejun Heo <htejun@gmail.com>2007-09-21 17:55:44 +0900
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:42 -0400
commitb6d6c74628767e1bd33c735b3b2ee7b132b4198e (patch)
treeba96a354766e1b16690bd567fb1b569e61610000 /drivers/ata/sata_via.c
parent1e582ba4ef6264dd8cb73250ebff767d0624d684 (diff)
sata_via: kill SATA_PATA_SHARING register handling
The SATA_PATA_SHARING register doesn't have anything to do with the SATA part of the controller. It indicates whether an extern SATA PHY is attached to the PATA part of the controller and if so how it is wired. As the PATA part is driven by pata_via, sata_via has no reason to care about that. Also, pata_via should work fine under all configurations. This patch removes unnecessary attach failures. It seems recent via chipsets are defaulting to different values or are actually connected to SATA PHY triggering this more often. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/sata_via.c')
-rw-r--r--drivers/ata/sata_via.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index f0757023ce9..1dc9b4f2b2d 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -57,7 +57,6 @@ enum {
SATA_CHAN_ENAB = 0x40, /* SATA channel enable */
SATA_INT_GATE = 0x41, /* SATA interrupt gating */
SATA_NATIVE_MODE = 0x42, /* Native mode enable */
- SATA_PATA_SHARING = 0x49, /* PATA/SATA sharing func ctrl */
PATA_UDMA_TIMING = 0xB3, /* PATA timing for DMA/ cable detect */
PATA_PIO_TIMING = 0xAB, /* PATA timing register */
@@ -68,7 +67,6 @@ enum {
NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4),
SATA_EXT_PHY = (1 << 6), /* 0==use PATA, 1==ext phy */
- SATA_2DEV = (1 << 5), /* SATA is master/slave */
};
static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
@@ -508,7 +506,6 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
struct ata_host *host;
int board_id = (int) ent->driver_data;
const int *bar_sizes;
- u8 tmp8;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -517,19 +514,10 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return rc;
- if (board_id == vt6420) {
- pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8);
- if (tmp8 & SATA_2DEV) {
- dev_printk(KERN_ERR, &pdev->dev,
- "SATA master/slave not supported (0x%x)\n",
- (int) tmp8);
- return -EIO;
- }
-
+ if (board_id == vt6420)
bar_sizes = &svia_bar_sizes[0];
- } else {
+ else
bar_sizes = &vt6421_bar_sizes[0];
- }
for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++)
if ((pci_resource_start(pdev, i) == 0) ||