From b6d6c74628767e1bd33c735b3b2ee7b132b4198e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 21 Sep 2007 17:55:44 +0900 Subject: [PATCH] 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 Signed-off-by: Jeff Garzik --- drivers/ata/sata_via.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index f0757023ce..1dc9b4f2b2 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) || -- 2.20.1