ARM: dts: nuvoton: Add new device nodes

Add the following new device nodes to NPCM7XX:

        - NPCM7xx PWM and FAN.
        - NPCM7xx EHCI USB.
        - NPCM7xx KCS.
        - NPCM Reset.
        - NPCM Peripheral SPI.
        - NPCM FIU SPI.
        - NPCM HWRNG.
        - NPCM I2C.
        - STMicro STMMAC.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20200929131807.15378-5-tmaimon77@gmail.comSigned-off-by: Joel Stanley <joel@jms.id.au>

arch/arm/boot/dts/nuvoton-npcm750.dtsi

@@ -32,6 +32,7 @@ cpu@1 {
 			next-level-cache = <&l2>;
 		};
 	};
+
 	soc {
 		timer@3fe600 {
 			compatible = "arm,cortex-a9-twd-timer";
@@ -41,4 +42,21 @@ timer@3fe600 {
 			clocks = <&clk NPCM7XX_CLK_AHB>;
 		};
 	};
+
+	ahb {
+		gmac1: eth@f0804000 {
+			device_type = "network";
+			compatible = "snps,dwmac";
+			reg = <0xf0804000 0x2000>;
+			interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq";
+			ethernet = <1>;
+			clocks	= <&clk_rg2refck>, <&clk NPCM7XX_CLK_AHB>;
+			clock-names = "stmmaceth", "clk_gmac";
+			pinctrl-names = "default";
+			pinctrl-0 = <&rg2_pins
+					&rg2mdio_pins>;
+			status = "disabled";
+		};
+	};
 };