diff --git a/src/soc/intel/common/block/p2sb/ioe_p2sb.c b/src/soc/intel/common/block/p2sb/ioe_p2sb.c
index e806417..41b815b 100644
--- a/src/soc/intel/common/block/p2sb/ioe_p2sb.c
+++ b/src/soc/intel/common/block/p2sb/ioe_p2sb.c
@@ -28,7 +28,7 @@
 
 static void read_resources(struct device *dev)
 {
-	mmio_resource_kb(dev, 0, IOE_P2SB_BAR / KiB, IOE_P2SB_SIZE / KiB);
+	mmio_range(dev, 0, IOE_P2SB_BAR, IOE_P2SB_SIZE);
 }
 
 struct device_operations device_ops = {