diff options
| -rw-r--r-- | drivers/ata/pata_amd.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c index b3f60fdb02d0..3293cf9a7eb5 100644 --- a/drivers/ata/pata_amd.c +++ b/drivers/ata/pata_amd.c @@ -25,7 +25,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_amd" -#define DRV_VERSION "0.2.2" +#define DRV_VERSION "0.2.3" /** * timing_setup - shared timing computation and load @@ -253,11 +253,22 @@ static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev) static int nv_pre_reset(struct ata_port *ap) { static const u8 bitmask[2] = {0x03, 0xC0}; + static const struct pci_bits nv_enable_bits[] = { + { 0x50, 1, 0x02, 0x02 }, + { 0x50, 1, 0x01, 0x01 } + }; struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 ata66; u16 udma; + if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no])) { + ata_port_disable(ap); + printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); + return 0; + } + + pci_read_config_byte(pdev, 0x52, &ata66); if (ata66 & bitmask[ap->port_no]) ap->cbl = ATA_CBL_PATA80; |