ARM: dts: rockchip: Add rv1108 GMAC support

Add GMAC support for RV1108.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rv1108.dtsi

@@ -516,6 +516,28 @@ usb_otg: usb@30180000 {
 		status = "disabled";
 	};
 
+	gmac: eth@30200000 {
+		compatible = "rockchip,rv1108-gmac";
+		reg = <0x30200000 0x10000>;
+		interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "macirq", "eth_wake_irq";
+		clocks = <&cru SCLK_MAC>,
+			<&cru SCLK_MAC_RX>, <&cru SCLK_MAC_RX>,
+			<&cru SCLK_MAC_REF>, <&cru SCLK_MAC_REFOUT>,
+			<&cru ACLK_GMAC>, <&cru PCLK_GMAC>;
+		clock-names = "stmmaceth",
+			"mac_clk_rx", "mac_clk_tx",
+			"clk_mac_ref", "clk_mac_refout",
+			"aclk_mac", "pclk_mac";
+		/* rv1108 only supports an rmii interface */
+		phy-mode = "rmii";
+		pinctrl-names = "default";
+		pinctrl-0 = <&rmii_pins>;
+		rockchip,grf = <&grf>;
+		status = "disabled";
+	};
+
 	gic: interrupt-controller@32010000 {
 		compatible = "arm,gic-400";
 		interrupt-controller;
@@ -662,6 +684,21 @@ emmc_cmd: emmc-cmd {
 			};
 		};
 
+		gmac {
+			rmii_pins: rmii-pins {
+				rockchip,pins =	<1 RK_PC5 RK_FUNC_2 &pcfg_pull_none>,
+						<1 RK_PC3 RK_FUNC_2 &pcfg_pull_none>,
+						<1 RK_PC4 RK_FUNC_2 &pcfg_pull_none>,
+						<1 RK_PB2 RK_FUNC_3 &pcfg_pull_none_drv_12ma>,
+						<1 RK_PB3 RK_FUNC_3 &pcfg_pull_none_drv_12ma>,
+						<1 RK_PB4 RK_FUNC_3 &pcfg_pull_none_drv_12ma>,
+						<1 RK_PB5 RK_FUNC_3 &pcfg_pull_none>,
+						<1 RK_PB6 RK_FUNC_3 &pcfg_pull_none>,
+						<1 RK_PB7 RK_FUNC_3 &pcfg_pull_none>,
+						<1 RK_PC2 RK_FUNC_3 &pcfg_pull_none>;
+			};
+		};
+
 		i2c0 {
 			i2c0_xfer: i2c0-xfer {
 				rockchip,pins = <0 RK_PB1 RK_FUNC_1 &pcfg_pull_none_smt>,