ARM: orion5x: add gigabit ethernet and mvmdio device tree nodes

This patch adds mv643xx_eth and mvmdio device tree nodes for DT enabled
Orion5x boards. Phy nodes are also added with reg property set on a
per-board basis.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts b/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts
index 0077fc8..aed83de 100644
--- a/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts
+++ b/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts
@@ -53,3 +53,20 @@
 		};
 	};
 };
+
+&mdio {
+	status = "okay";
+
+	ethphy: ethernet-phy {
+		device-type = "ethernet-phy";
+		reg = <8>;
+	};
+};
+
+&eth {
+	status = "okay";
+
+	ethernet-port@0 {
+		phy-handle = <&ethphy>;
+	};
+};