diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c
index ec04b8d..dce3dcc 100644
--- a/drivers/ata/sata_sx4.c
+++ b/drivers/ata/sata_sx4.c
@@ -265,8 +265,8 @@
 		.flags		= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				  ATA_FLAG_SRST | ATA_FLAG_MMIO |
 				  ATA_FLAG_NO_ATAPI | ATA_FLAG_PIO_POLLING,
-		.pio_mask	= 0x1f, /* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &pdc_20621_ops,
 	},