diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index a403456..f2fa158 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -139,13 +139,13 @@
 {
 	switch(adev->dma_mode) {
 		case XFER_MW_DMA_0:
-			sl82c105_configure_piomode(ap, adev, 1);
+			sl82c105_configure_piomode(ap, adev, 0);
 			break;
 		case XFER_MW_DMA_1:
 			sl82c105_configure_piomode(ap, adev, 3);
 			break;
 		case XFER_MW_DMA_2:
-			sl82c105_configure_piomode(ap, adev, 3);
+			sl82c105_configure_piomode(ap, adev, 4);
 			break;
 		default:
 			BUG();