watchdog: sc520_wdt: Remove unnecessary cast.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c
index 52b63f2..b284040 100644
--- a/drivers/watchdog/sc520_wdt.c
+++ b/drivers/watchdog/sc520_wdt.c
@@ -398,7 +398,7 @@
 							WATCHDOG_TIMEOUT);
 	}
 
-	wdtmrctl = ioremap((unsigned long)(MMCR_BASE + OFFS_WDTMRCTL), 2);
+	wdtmrctl = ioremap(MMCR_BASE + OFFS_WDTMRCTL, 2);
 	if (!wdtmrctl) {
 		printk(KERN_ERR PFX "Unable to remap memory\n");
 		rc = -ENOMEM;