diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index f7264fd611c2..cb9082fd7e2f 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -454,7 +454,7 @@ static int sil24_softreset(struct ata_port *ap, int verbose,
 	 */
 	msleep(10);
 
-	prb->ctrl = PRB_CTRL_SRST;
+	prb->ctrl = cpu_to_le16(PRB_CTRL_SRST);
 	prb->fis[1] = 0; /* no PM yet */
 
 	writel((u32)paddr, port + PORT_CMD_ACTIVATE);
@@ -551,9 +551,9 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
 
 		if (qc->tf.protocol != ATA_PROT_ATAPI_NODATA) {
 			if (qc->tf.flags & ATA_TFLAG_WRITE)
-				prb->ctrl = PRB_CTRL_PACKET_WRITE;
+				prb->ctrl = cpu_to_le16(PRB_CTRL_PACKET_WRITE);
 			else
-				prb->ctrl = PRB_CTRL_PACKET_READ;
+				prb->ctrl = cpu_to_le16(PRB_CTRL_PACKET_READ);
 		} else
 			prb->ctrl = 0;