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path: root/drivers/ata/pata_hpt366.c
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Diffstat (limited to 'drivers/ata/pata_hpt366.c')
-rw-r--r--drivers/ata/pata_hpt366.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index a098ba8eaab..e0c4f05d7d5 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -183,7 +183,9 @@ static unsigned long hpt366_filter(struct ata_device *adev, unsigned long mask)
mask &= ~(0xF8 << ATA_SHIFT_UDMA);
if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4))
mask &= ~(0xF0 << ATA_SHIFT_UDMA);
- }
+ } else if (adev->class == ATA_DEV_ATAPI)
+ mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
+
return ata_bmdma_mode_filter(adev, mask);
}
@@ -211,11 +213,15 @@ static u32 hpt36x_find_mode(struct ata_port *ap, int speed)
static int hpt36x_cable_detect(struct ata_port *ap)
{
- u8 ata66;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ata66;
+ /*
+ * Each channel of pata_hpt366 occupies separate PCI function
+ * as the primary channel and bit1 indicates the cable type.
+ */
pci_read_config_byte(pdev, 0x5A, &ata66);
- if (ata66 & (1 << ap->port_no))
+ if (ata66 & 2)
return ATA_CBL_PATA40;
return ATA_CBL_PATA80;
}