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-rw-r--r--drivers/scsi/ata_piix.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 5988d5fe1e1..987a7ccac91 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -101,6 +101,8 @@ enum {
ICH5_PCS = 0x92, /* port control and status */
PIIX_SCC = 0x0A, /* sub-class code register */
+ PIIX_FLAG_IGN_PRESENT = (1 << 25), /* ignore PCS present bits */
+ PIIX_FLAG_SCR = (1 << 26), /* SCR available */
PIIX_FLAG_AHCI = (1 << 27), /* AHCI possible */
PIIX_FLAG_CHECKINTR = (1 << 28), /* make sure PCI INTx enabled */
PIIX_FLAG_COMBINED = (1 << 29), /* combined mode possible */
@@ -314,7 +316,7 @@ static struct ata_port_info piix_port_info[] = {
{
.sht = &piix_sht,
.host_flags = ATA_FLAG_SATA | PIIX_FLAG_COMBINED |
- PIIX_FLAG_CHECKINTR,
+ PIIX_FLAG_CHECKINTR | PIIX_FLAG_IGN_PRESENT,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */
@@ -325,7 +327,8 @@ static struct ata_port_info piix_port_info[] = {
{
.sht = &piix_sht,
.host_flags = ATA_FLAG_SATA | PIIX_FLAG_COMBINED_ICH6 |
- PIIX_FLAG_CHECKINTR | ATA_FLAG_SLAVE_POSS,
+ PIIX_FLAG_CHECKINTR | ATA_FLAG_SLAVE_POSS |
+ PIIX_FLAG_SCR,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */
@@ -337,7 +340,7 @@ static struct ata_port_info piix_port_info[] = {
.sht = &piix_sht,
.host_flags = ATA_FLAG_SATA | PIIX_FLAG_COMBINED_ICH6 |
PIIX_FLAG_CHECKINTR | ATA_FLAG_SLAVE_POSS |
- PIIX_FLAG_AHCI,
+ PIIX_FLAG_SCR | PIIX_FLAG_AHCI,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */
@@ -349,7 +352,7 @@ static struct ata_port_info piix_port_info[] = {
.sht = &piix_sht,
.host_flags = ATA_FLAG_SATA | PIIX_FLAG_COMBINED_ICH6 |
PIIX_FLAG_CHECKINTR | ATA_FLAG_SLAVE_POSS |
- PIIX_FLAG_AHCI,
+ PIIX_FLAG_SCR | PIIX_FLAG_AHCI,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */