1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index a7443f15b27a..84ed30cdb324 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -431,8 +431,13 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
         if ((amd_config->flags & AMD_BAD_SWDMA) == 0)
                 hwif->swdma_mask = 0x07;
 
-        if (!hwif->udma_four)
-                hwif->udma_four = (amd_80w >> hwif->channel) & 1;
+        if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
+                if ((amd_80w >> hwif->channel) & 1)
+                        hwif->cbl = ATA_CBL_PATA80;
+                else
+                        hwif->cbl = ATA_CBL_PATA40;
+        }
+
         hwif->ide_dma_check = &amd74xx_ide_dma_check;
         if (!noautodma)
                 hwif->autodma = 1;