arm64: dts: uniphier: add support for LD20 Global board

Add initial device tree support for LD20 Global board.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/dts/Makefile

@@ -100,6 +100,7 @@ dtb-$(CONFIG_ARCH_UNIPHIER_LD11) += \
 	uniphier-ld11-global.dtb \
 	uniphier-ld11-ref.dtb
 dtb-$(CONFIG_ARCH_UNIPHIER_LD20) += \
+	uniphier-ld20-global.dtb \
 	uniphier-ld20-ref.dtb
 dtb-$(CONFIG_ARCH_UNIPHIER_LD4) += \
 	uniphier-ld4-ref.dtb

arch/arm/dts/uniphier-ld20-global.dts

@@ -0,0 +1,61 @@
+/*
+ * Device Tree Source for UniPhier LD20 Global Board
+ *
+ * Copyright (C) 2015-2017 Socionext Inc.
+ *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ *           Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+/include/ "uniphier-ld20.dtsi"
+
+/ {
+	model = "UniPhier LD20 Global Board (REF_LD20_GP)";
+	compatible = "socionext,uniphier-ld20-global",
+		     "socionext,uniphier-ld20";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		serial0 = &serial0;
+		serial1 = &serial1;
+		serial2 = &serial2;
+		serial3 = &serial3;
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+		i2c4 = &i2c4;
+		i2c5 = &i2c5;
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0 0x80000000 0 0xc0000000>;
+	};
+};
+
+&serial0 {
+	status = "okay";
+};
+
+&serial1 {
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+};
+
+/* for U-Boot only */
+&serial0 {
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_uart0 {
+	u-boot,dm-pre-reloc;
+};