MIPS: xilfpga: Add DT node for AXI emaclite

The xilfpga platform has a Xilinx AXI emaclite block.

Add the DT node to use it.
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14596/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/boot/dts/xilfpga/nexys4ddr.dts

@@ -42,6 +42,32 @@ axi_gpio: gpio@10600000 {
 		xlnx,tri-default = <0xffffffff>;
 	} ;
 
+	axi_ethernetlite: ethernet@10e00000 {
+		compatible = "xlnx,xps-ethernetlite-3.00.a";
+		device_type = "network";
+		interrupt-parent = <&axi_intc>;
+		interrupts = <1>;
+		phy-handle = <&phy0>;
+		reg = <0x10e00000 0x10000>;
+		xlnx,duplex = <0x1>;
+		xlnx,include-global-buffers = <0x1>;
+		xlnx,include-internal-loopback = <0x0>;
+		xlnx,include-mdio = <0x1>;
+		xlnx,instance = "axi_ethernetlite_inst";
+		xlnx,rx-ping-pong = <0x1>;
+		xlnx,s-axi-id-width = <0x1>;
+		xlnx,tx-ping-pong = <0x1>;
+		xlnx,use-internal = <0x0>;
+		mdio {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			phy0: phy@1 {
+				device_type = "ethernet-phy";
+				reg = <1>;
+			};
+		};
+	};
+
 	axi_uart16550: serial@10400000 {
 		compatible = "ns16550a";
 		reg = <0x10400000 0x10000>;