arm: nuvoton: Add support for Nuvoton NPCM750 BMC

Add basic support for the Nuvoton NPCM750 EVB (Poleg).

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
diff --git a/arch/arm/dts/nuvoton-npcm750.dtsi b/arch/arm/dts/nuvoton-npcm750.dtsi
new file mode 100644
index 0000000..13eee0f
--- /dev/null
+++ b/arch/arm/dts/nuvoton-npcm750.dtsi
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Nuvoton Technology tomer.maimon@nuvoton.com
+// Copyright 2018 Google, Inc.
+
+#include "nuvoton-common-npcm7xx.dtsi"
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	interrupt-parent = <&gic>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		enable-method = "nuvoton,npcm750-smp";
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			clocks = <&clk NPCM7XX_CLK_CPU>;
+			clock-names = "clk_cpu";
+			reg = <0>;
+			next-level-cache = <&l2>;
+		};
+
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			clocks = <&clk NPCM7XX_CLK_CPU>;
+			clock-names = "clk_cpu";
+			reg = <1>;
+			next-level-cache = <&l2>;
+		};
+	};
+
+	soc {
+		timer@3fe600 {
+			compatible = "arm,cortex-a9-twd-timer";
+			reg = <0x3fe600 0x20>;
+			interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
+						  IRQ_TYPE_LEVEL_HIGH)>;
+			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";
+		};
+	};
+};