MIPS: Loongson64: Add GMAC support for Loongson-2K1000

The GMAC module is now supported, enable it.
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi

@@ -114,6 +114,52 @@ pci@1a000000 {
 			ranges = <0x01000000 0x0 0x00000000 0x0 0x18000000  0x0 0x00010000>,
 				 <0x02000000 0x0 0x40000000 0x0 0x40000000  0x0 0x40000000>;
 
+			gmac@3,0 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass0c0320",
+						   "pciclass0c03",
+						   "loongson, pci-gmac";
+
+				reg = <0x1800 0x0 0x0 0x0 0x0>;
+				interrupts = <12 IRQ_TYPE_LEVEL_LOW>,
+					     <13 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&liointc0>;
+				phy-mode = "rgmii";
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy0: ethernet-phy@0 {
+						reg = <0>;
+					};
+				};
+			};
+
+			gmac@3,1 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass0c0320",
+						   "pciclass0c03",
+						   "loongson, pci-gmac";
+
+				reg = <0x1900 0x0 0x0 0x0 0x0>;
+				interrupts = <14 IRQ_TYPE_LEVEL_LOW>,
+					     <15 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&liointc0>;
+				phy-mode = "rgmii";
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy1: ethernet-phy@1 {
+						reg = <0>;
+					};
+				};
+			};
+
 			ehci@4,1 {
 				compatible = "pci0014,7a14.0",
 						   "pci0014,7a14",