pata_hpt366: no ATAPI DMA

[linux-2.6-omap-h63xx.git] / drivers / ata / pata_hpt366.c

diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index f2b83eabc7c7cd2bb59ba198df4f5c85b7b20355..e0c4f05d7d579a807becb30af2bf44b3a9ea7260 100644 (file)
--- 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;
 }
@@ -382,10 +388,10 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
        /* PCI clocking determines the ATA timing values to use */
        /* info_hpt366 is safe against re-entry so we can scribble on it */
        switch((reg1 & 0x700) >> 8) {
-               case 5:
+               case 9:
                        hpriv = &hpt366_40;
                        break;
-               case 9:
+               case 5:
                        hpriv = &hpt366_25;
                        break;
                default: