1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index aaf1f75fa293..457231bb1029 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -117,7 +117,7 @@ static int pl030_probe(struct amba_device *dev, struct amba_id *id)
                 goto err_rtc;
         }
 
-        rtc->base = ioremap(dev->res.start, SZ_4K);
+        rtc->base = ioremap(dev->res.start, resource_size(&dev->res));
         if (!rtc->base) {
                 ret = -ENOMEM;
                 goto err_map;