ata/sata_fsl: cleanup needless casts to/from void __iomem *

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index e04fb75..e3bf954 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -483,7 +483,7 @@
 
 	VPRINTK("xx_scr_write, reg_in = %d\n", sc_reg);
 
-	iowrite32(val, (void __iomem *)ssr_base + (sc_reg * 4));
+	iowrite32(val, ssr_base + (sc_reg * 4));
 	return 0;
 }
 
@@ -507,7 +507,7 @@
 
 	VPRINTK("xx_scr_read, reg_in = %d\n", sc_reg);
 
-	*val = ioread32((void __iomem *)ssr_base + (sc_reg * 4));
+	*val = ioread32(ssr_base + (sc_reg * 4));
 	return 0;
 }