diff --git a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
index f6f15e2910ed..c5a1fc75c7a3 100644
--- a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
+++ b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
@@ -105,6 +105,7 @@ ethphy0: ethernet-phy@0 {
 		compatible = "ethernet-phy-id0141.0cb0",
 		             "ethernet-phy-ieee802.3-c22";
 		reg = <0>;
+		phy-connection-type = "rgmii-id";
 	};
 
 	ethphy1: ethernet-phy@1 {
@@ -112,6 +113,7 @@ ethphy1: ethernet-phy@1 {
 		compatible = "ethernet-phy-id0141.0cb0",
 		             "ethernet-phy-ieee802.3-c22";
 		reg = <1>;
+		phy-connection-type = "rgmii-id";
 	};
 };