diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 90e3e14b4acebcf57ff8b55987c6add55e2ba05a..25e00f2170e65ed57a9ee71ba3df8fce69e364f5 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -145,7 +145,7 @@ struct sata_dwc_device {
 	struct ata_probe_ent	*pe;		/* ptr to probe-ent */
 	struct ata_host		*host;
 	u8 __iomem		*reg_base;
-	struct sata_dwc_regs	*sata_dwc_regs;	/* DW Synopsys SATA specific */
+	struct sata_dwc_regs __iomem *sata_dwc_regs;	/* DW SATA specific */
 	u32			sactive_issued;
 	u32			sactive_queued;
 	struct phy		*phy;