dts: Add bindings for APM X-Gene SoC ethernet driver

This patch adds bindings for APM X-Gene SoC ethernet driver.

Signed-off-by: Iyappan Subramanian <[e-mail]>
Signed-off-by: Ravi Patel <[e-mail]>
Signed-off-by: Keyur Chudgar <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

arch/arm64/boot/dts/apm-mustang.dts

···
 &serial0 {
 	status = "ok";
 };
+
+&menet {
+	status = "ok";
+};

arch/arm64/boot/dts/apm-storm.dtsi

···
 				clock-output-names = "ethclk";
 			};
 
-			eth8clk: eth8clk {
+			menetclk: menetclk {
 				compatible = "apm,xgene-device-clock";
 				#clock-cells = <1>;
 				clocks = <&ethclk 0>;
-				clock-names = "eth8clk";
 				reg = <0x0 0x1702C000 0x0 0x1000>;
 				reg-names = "csr-reg";
-				clock-output-names = "eth8clk";
+				clock-output-names = "menetclk";
 			};
 
 			sataphy1clk: sataphy1clk@1f21c000 {
···
 			interrupts = <0x0 0x46 0x4>;
 			#clock-cells = <1>;
 			clocks = <&rtcclk 0>;
+		};
+
+		menet: ethernet@17020000 {
+			compatible = "apm,xgene-enet";
+			status = "disabled";
+			reg = <0x0 0x17020000 0x0 0xd100>,
+			      <0x0 0X17030000 0x0 0X400>,
+			      <0x0 0X10000000 0x0 0X200>;
+			reg-names = "enet_csr", "ring_csr", "ring_cmd";
+			interrupts = <0x0 0x3c 0x4>;
+			dma-coherent;
+			clocks = <&menetclk 0>;
+			local-mac-address = [00 01 73 00 00 01];
+			phy-connection-type = "rgmii";
+			phy-handle = <&menetphy>;
+			mdio {
+				compatible = "apm,xgene-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				menetphy: menetphy@3 {
+					compatible = "ethernet-phy-id001c.c915";
+					reg = <0x3>;
+				};
+
+			};
 		};
 	};
 };