sata_mv errata workaround for sata25 part 1

[safe/jmp/linux-2.6] / drivers / ata / pata_via.c

diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index d484074..2fea6cb 100644 (file)
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -464,11 +464,12 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
        }
        pci_dev_put(isa);
 
-       /* 0x40 low bits indicate enabled channels */
-       pci_read_config_byte(pdev, 0x40 , &enable);
-       enable &= 3;
-       if (enable == 0) {
-               return -ENODEV;
+       if (!(config->flags & VIA_NO_ENABLES)) {
+               /* 0x40 low bits indicate enabled channels */
+               pci_read_config_byte(pdev, 0x40 , &enable);
+               enable &= 3;
+               if (enable == 0)
+                       return -ENODEV;
        }
 
        /* Initialise the FIFO for the enabled channels. */