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Diffstat (limited to 'drivers/ata/ata_piix.c')
-rw-r--r--drivers/ata/ata_piix.c97
1 files changed, 67 insertions, 30 deletions
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 54961c0b2c7..e5cbe80ce17 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -446,34 +446,34 @@ static struct ata_port_info piix_port_info[] = {
[piix_pata_mwdma] = /* PIIX3 MWDMA only */
{
.flags = PIIX_PATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
.port_ops = &piix_pata_ops,
},
[piix_pata_33] = /* PIIX4 at 33MHz */
{
.flags = PIIX_PATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
- .udma_mask = ATA_UDMA_MASK_40C,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+ .udma_mask = ATA_UDMA2,
.port_ops = &piix_pata_ops,
},
[ich_pata_33] = /* ICH0 - ICH at 33Mhz*/
{
.flags = PIIX_PATA_FLAGS,
- .pio_mask = 0x1f, /* pio 0-4 */
- .mwdma_mask = 0x06, /* Check: maybe 0x07 */
- .udma_mask = ATA_UDMA2, /* UDMA33 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* Check: maybe MWDMA0 is ok */
+ .udma_mask = ATA_UDMA2,
.port_ops = &ich_pata_ops,
},
[ich_pata_66] = /* ICH controllers up to 66MHz */
{
.flags = PIIX_PATA_FLAGS,
- .pio_mask = 0x1f, /* pio 0-4 */
- .mwdma_mask = 0x06, /* MWDMA0 is broken on chip */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* MWDMA0 is broken on chip */
.udma_mask = ATA_UDMA4,
.port_ops = &ich_pata_ops,
},
@@ -481,17 +481,17 @@ static struct ata_port_info piix_port_info[] = {
[ich_pata_100] =
{
.flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x06, /* mwdma1-2 */
- .udma_mask = ATA_UDMA5, /* udma0-5 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY,
+ .udma_mask = ATA_UDMA5,
.port_ops = &ich_pata_ops,
},
[ich5_sata] =
{
.flags = PIIX_SATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &piix_sata_ops,
},
@@ -499,8 +499,8 @@ static struct ata_port_info piix_port_info[] = {
[ich6_sata] =
{
.flags = PIIX_SATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &piix_sata_ops,
},
@@ -508,8 +508,8 @@ static struct ata_port_info piix_port_info[] = {
[ich6m_sata] =
{
.flags = PIIX_SATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &piix_sata_ops,
},
@@ -517,8 +517,8 @@ static struct ata_port_info piix_port_info[] = {
[ich8_sata] =
{
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &piix_sata_ops,
},
@@ -526,8 +526,8 @@ static struct ata_port_info piix_port_info[] = {
[ich8_2port_sata] =
{
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &piix_sata_ops,
},
@@ -535,8 +535,8 @@ static struct ata_port_info piix_port_info[] = {
[tolapai_sata] =
{
.flags = PIIX_SATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &piix_sata_ops,
},
@@ -544,8 +544,8 @@ static struct ata_port_info piix_port_info[] = {
[ich8m_apple_sata] =
{
.flags = PIIX_SATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &piix_sata_ops,
},
@@ -553,9 +553,9 @@ static struct ata_port_info piix_port_info[] = {
[piix_pata_vmw] =
{
.flags = PIIX_PATA_FLAGS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
- .udma_mask = ATA_UDMA_MASK_40C,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+ .udma_mask = ATA_UDMA2,
.port_ops = &piix_vmw_ops,
},
@@ -1289,6 +1289,39 @@ static const int *__devinit piix_init_sata_map(struct pci_dev *pdev,
return map;
}
+static bool piix_no_sidpr(struct ata_host *host)
+{
+ struct pci_dev *pdev = to_pci_dev(host->dev);
+
+ /*
+ * Samsung DB-P70 only has three ATA ports exposed and
+ * curiously the unconnected first port reports link online
+ * while not responding to SRST protocol causing excessive
+ * detection delay.
+ *
+ * Unfortunately, the system doesn't carry enough DMI
+ * information to identify the machine but does have subsystem
+ * vendor and device set. As it's unclear whether the
+ * subsystem vendor/device is used only for this specific
+ * board, the port can't be disabled solely with the
+ * information; however, turning off SIDPR access works around
+ * the problem. Turn it off.
+ *
+ * This problem is reported in bnc#441240.
+ *
+ * https://bugzilla.novell.com/show_bug.cgi?id=441420
+ */
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL && pdev->device == 0x2920 &&
+ pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG &&
+ pdev->subsystem_device == 0xb049) {
+ dev_printk(KERN_WARNING, host->dev,
+ "Samsung DB-P70 detected, disabling SIDPR\n");
+ return true;
+ }
+
+ return false;
+}
+
static int __devinit piix_init_sidpr(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
@@ -1302,6 +1335,10 @@ static int __devinit piix_init_sidpr(struct ata_host *host)
if (hpriv->map[i] == IDE)
return 0;
+ /* is it blacklisted? */
+ if (piix_no_sidpr(host))
+ return 0;
+
if (!(host->ports[0]->flags & PIIX_FLAG_SIDPR))
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-01 10:52:10 +0000