--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -221,7 +221,7 @@
 				status = "disabled";
 			};
 
-			mdio {
+			mdio: mdio {
 				#address-cells = <1>;
 				#size-cells = <0>;
 				compatible = "marvell,orion-mdio";
