diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index dc42ba1..78e6ac5 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -105,8 +105,10 @@ enum {
 	PIIX_FLAG_AHCI		= (1 << 27), /* AHCI possible */
 	PIIX_FLAG_CHECKINTR	= (1 << 28), /* make sure PCI INTx enabled */
 
-	PIIX_PATA_FLAGS		= ATA_FLAG_SLAVE_POSS,
-	PIIX_SATA_FLAGS		= ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR,
+	PIIX_PATA_FLAGS		= ATA_FLAG_SLAVE_POSS |
+				  ATA_FLAG_SETXFER_POLLING,
+	PIIX_SATA_FLAGS		= ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR |
+				  ATA_FLAG_SETXFER_POLLING,
 
 	/* combined mode.  if set, PATA is channel 0.
 	 * if clear, PATA is channel 1.