2 files changed, 2 insertions, 3 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;
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index 451fc13784d1..f41873f98f66 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -142,8 +142,7 @@ static int pl031_probe(struct amba_device *adev, struct amba_id *id)
                 goto out;
         }
 
-        ldata->base = ioremap(adev->res.start,
-                              adev->res.end - adev->res.start + 1);
+        ldata->base = ioremap(adev->res.start, resource_size(&adev->res));
         if (!ldata->base) {
                 ret = -ENOMEM;
                 goto out_no_remap;