MIPS: Ingenic: Add MAC syscon nodes for Ingenic SoCs.

Add MAC syscon nodes for X1000 SoC and X1830 SoC from Ingenic.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/boot/dts/ingenic/x1000.dtsi

@@ -80,6 +80,11 @@ rng: rng@d8 {
 
 			status = "disabled";
 		};
+
+		mac_phy_ctrl: mac-phy-ctrl@e8 {
+			compatible = "syscon";
+			reg = <0xe8 0x4>;
+		};
 	};
 
 	ost: timer@12000000 {
@@ -347,6 +352,8 @@ mac: ethernet@134b0000 {
 		clocks = <&cgu X1000_CLK_MAC>;
 		clock-names = "stmmaceth";
 
+		mode-reg = <&mac_phy_ctrl>;
+
 		status = "disabled";
 
 		mdio: mdio {

arch/mips/boot/dts/ingenic/x1830.dtsi

@@ -73,6 +73,11 @@ otg_phy: usb-phy@3c {
 
 			status = "disabled";
 		};
+
+		mac_phy_ctrl: mac-phy-ctrl@e8 {
+			compatible = "syscon";
+			reg = <0xe8 0x4>;
+		};
 	};
 
 	ost: timer@12000000 {
@@ -336,6 +341,8 @@ mac: ethernet@134b0000 {
 		clocks = <&cgu X1830_CLK_MAC>;
 		clock-names = "stmmaceth";
 
+		mode-reg = <&mac_phy_ctrl>;
+
 		status = "disabled";
 
 		mdio: mdio {