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>

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>;
+	};
+};

arch/arm/boot/dts/orion5x.dtsi

@@ -132,5 +132,34 @@
 			interrupts = <28>;
 			status = "okay";
 		};
+
+		mdio: mdio-bus@72004 {
+			compatible = "marvell,orion-mdio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x72004 0x84>;
+			interrupts = <22>;
+			status = "disabled";
+
+			/* add phy nodes in board file */
+		};
+
+		eth: ethernet-controller@72000 {
+			compatible = "marvell,orion-eth";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x72000 0x4000>;
+			marvell,tx-checksum-limit = <1600>;
+			status = "disabled";
+
+			ethernet-port@0 {
+				device_type = "network";
+				compatible = "marvell,orion-eth-port";
+				reg = <0>;
+				/* overwrite MAC address in bootloader */
+				local-mac-address = [00 00 00 00 00 00];
+				/* set phy-handle property in board file */
+			};
+		};
 	};
 };