[PATCH] ARM: dts: Initial ODROID U2 support

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This dts adds initial support for the popular ODROID U2/U3 development
boards based on Exynos4412.

This file comes from larger work by Alban Browaeys, but I removed the
items that aren't immediately working on mainline kernels yet (USB,
HDMI, etc).

This leaves us with a reasonable starting point for further development:
basic bootup and shutdown works, plus LED, eMMC, SD, and serial.

Signed-off-by: Daniel Drake <drake@xxxxxxxxxxxx>
---
 arch/arm/boot/dts/Makefile                |   1 +
 arch/arm/boot/dts/exynos4412-odroidu2.dts | 468 ++++++++++++++++++++++++++++++
 2 files changed, 469 insertions(+)
 create mode 100644 arch/arm/boot/dts/exynos4412-odroidu2.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5986ff6..bd89b23 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -66,6 +66,7 @@ dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \
 	exynos4210-smdkv310.dtb \
 	exynos4210-trats.dtb \
 	exynos4210-universal_c210.dtb \
+	exynos4412-odroidu2.dtb \
 	exynos4412-odroidx.dtb \
 	exynos4412-origen.dtb \
 	exynos4412-smdk4412.dtb \
diff --git a/arch/arm/boot/dts/exynos4412-odroidu2.dts b/arch/arm/boot/dts/exynos4412-odroidu2.dts
new file mode 100644
index 0000000..a164522
--- /dev/null
+++ b/arch/arm/boot/dts/exynos4412-odroidu2.dts
@@ -0,0 +1,468 @@
+/*
+ * Hardkernel's Exynos4412 based ODROID-U2 board device tree source
+ *
+ * Copyright (c) 2013 Alban Browaeys <prahal@xxxxxxxxx>
+ *
+ * Based on exynos4412-odroidx.dts
+ * Copyright (c) 2012 Dongjin Kim <tobetter@xxxxxxxxx>
+ *
+ * Based on exynos4412-origen.dts
+ * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Device tree source file for Hardkernel's ODROID-U2 board which is based on
+ * Samsung's Exynos4412 SoC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/dts-v1/;
+#include "exynos4412.dtsi"
+
+/ {
+	model = "Hardkernel ODROID-U2/U3 board based on Exynos4412";
+	compatible = "hardkernel,odroid-u2", "samsung,exynos4412", "samsung,exynos4";
+
+	chosen {
+		bootargs = "console=ttySAC1,115200";
+	};
+
+	memory {
+		reg = <0x40000000 0x80000000>;
+	};
+
+	firmware@0203F000 {
+		compatible = "samsung,secure-firmware";
+		reg = <0x0203F000 0x1000>;
+	};
+
+	watchdog@10060000 {
+		status = "okay";
+	};
+
+	g2d@10800000 {
+		status = "okay";
+	};
+
+	fixed-rate-clocks {
+		xxti {
+			compatible = "samsung,clock-xxti", "fixed-clock";
+			clock-frequency = <0>;
+		};
+
+		xusbxti {
+			compatible = "samsung,clock-xusbxti", "fixed-clock";
+			clock-frequency = <24000000>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led1 {
+			label = "led1:heart";
+			gpios = <&gpc1 0 1>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	mmc@12550000 {
+		pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8 &sd4_nreset_out>;
+		pinctrl-names = "default";
+		vmmc-supply = <&ldo20_reg &ldo22_reg>;
+		status = "okay";
+
+		num-slots = <1>;
+		supports-highspeed;
+		broken-cd;
+		keep-power-in-suspend;
+		non-removable;
+		card-detect-delay = <200>;
+		samsung,dw-mshc-ciu-div = <3>;
+		samsung,dw-mshc-sdr-timing = <1 1>;
+		samsung,dw-mshc-ddr-timing = <2 1>;
+		samsung,dw-mshc-hwreset-gpio = <&gpk1 2 1>;
+
+		slot@0 {
+			reg = <0>;
+			bus-width = <8>;
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+
+		reg_p3v3: p3v3@0 {
+			compatible = "regulator-fixed";
+			regulator-name = "p3v3_en";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpa1 1 3>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+		};
+
+		reg_sysvdd: p5v0@1 {
+			compatible = "regulator-fixed";
+			regulator-name = "p5v0";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+		};
+
+		spkvdd:jack@2 {
+			compatible = "regulator-fixed";
+			regulator-name = "spkvdd-supply";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			vin-supply = <&reg_sysvdd>;
+		};
+	};
+
+	pinctrl@11000000 {
+		sd4_nreset_out: sd4-nreset-out {
+			samsung,pins = "gpk1-2";
+			samsung,pin-function = <4>;
+			samsung,pin-pud = <0>;
+			samsung,pin-drv = <0>;
+		};
+
+		eint26: ext-int26 {
+			samsung,pins = "gpx3-2";
+			samsung,pin-function = <0xf>;
+			samsung,pin-pud = <0>;
+			samsung,pin-drv = <0>;
+		};
+	};
+
+	sdhci@12530000 {
+		bus-width = <4>;
+		pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
+		pinctrl-names = "default";
+		vmmc-supply = <&ldo4_reg &ldo21_reg>;
+		status = "okay";
+	};
+
+	serial@13800000 {
+		status = "okay";
+	};
+
+	serial@13810000 {
+		status = "okay";
+	};
+
+	serial@13820000 {
+		status = "okay";
+	};
+
+	serial@13830000 {
+		status = "okay";
+	};
+
+	i2c_0: i2c@13860000 {
+		pinctrl-0 = <&i2c0_bus>;
+		pinctrl-names = "default";
+		status = "okay";
+
+		samsung,i2c-sda-delay = <100>;
+		samsung,i2c-slave-addr = <0x10>;
+		samsung,i2c-max-bus-freq = <400000>;
+
+		max77686_pmic@09 {
+			compatible = "maxim,max77686";
+			interrupts-extended = <&gpx3 2 1>, <&gpx1 2 1>;
+			reg = <0x09>;
+			pinctrl-0 = <&eint26>;
+			pinctrl-names = "default";
+			#clock-cells = <1>;
+
+			voltage-regulators {
+				ldo1_reg: ldo1 {
+					regulator-compatible = "LDO1";
+					regulator-name = "VDD_ALIVE_1.0V";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				ldo2_reg: ldo2 {
+					regulator-compatible = "LDO2";
+					regulator-name = "VDDQ_M1_2_1.8V";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo3_reg: ldo3 {
+					regulator-compatible = "LDO3";
+					regulator-name = "VDDQ_EXT_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo4_reg: ldo4 {
+					regulator-compatible = "LDO4";
+					regulator-name = "VDDQ_MMC2_2.8V";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					regulator-always-on;
+				};
+
+				ldo5_reg: ldo5 {
+					regulator-compatible = "LDO5";
+					regulator-name = "VDDQ_MMC1_3_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo6_reg: ldo6 {
+					regulator-compatible = "LDO6";
+					regulator-name = "VDD10_MPLL_1.0V";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				ldo7_reg: ldo7 {
+					regulator-compatible = "LDO7";
+					regulator-name = "VDD10_EPLL_1.0V";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				ldo8_reg: ldo8 {
+					regulator-compatible = "LDO8";
+					regulator-name = "VDD10_MIPI_1.0V";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				ldo9_reg: ldo9 {
+					regulator-compatible = "LDO9";
+					regulator-name = "VT_CORE_1.0V";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+				};
+
+				ldo10_reg: ldo10 {
+					regulator-compatible = "LDO10";
+					regulator-name = "VDD18_MIPI_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-boot-on;
+				};
+
+				ldo11_reg: ldo11 {
+					regulator-compatible = "LDO11";
+					regulator-name = "VDD18_ABB1_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo12_reg: ldo12 {
+					regulator-compatible = "LDO12";
+					regulator-name = "VDD33_USB_3.3V";
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldo13_reg: ldo13 {
+					regulator-compatible = "LDO13";
+					regulator-name = "VDDQ_C2C_W_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo14_reg: ldo14 {
+					regulator-compatible = "LDO14";
+					regulator-name = "VDD18_ABB0_2_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo15_reg: ldo15 {
+					regulator-compatible = "LDO15";
+					regulator-name = "VDD10_HSIC_1.0V";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldo16_reg: ldo16 {
+					regulator-compatible = "LDO16";
+					regulator-name = "VDD18_HSIC_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo17_reg: ldo17 {
+					regulator-compatible = "LDO17";
+					regulator-name = "VDDQ_CAM_1.2V";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo18_reg: ldo18 {
+					regulator-compatible = "LDO18";
+					regulator-name = "VDDQ_ISP_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				ldo19_reg: ldo19 {
+					regulator-compatible = "LDO19";
+					regulator-name = "VT_CAM_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				ldo20_reg: ldo20 {
+					regulator-compatible = "LDO20";
+					regulator-name = "LDO20_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-boot-on;
+				};
+
+				ldo21_reg: ldo21 {
+					regulator-compatible = "LDO21";
+					regulator-name = "LDO21_3.3V";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					regulator-always-on;
+				};
+
+				ldo22_reg: ldo22 {
+					regulator-compatible = "LDO22";
+					regulator-name = "VMEM_VDD_2.8V";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					regulator-always-on;
+				};
+
+				ldo23_reg: ldo23 {
+					regulator-compatible = "LDO23";
+					regulator-name = "VDD_TOUCH_2.8V";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				ldo24_reg: ldo24 {
+					regulator-compatible = "LDO24";
+					regulator-name = "VDD_TOUCHLED_3.3V";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+				};
+
+				ldo25_reg: ldo25 {
+					regulator-compatible = "LDO25";
+					regulator-name = "VDDQ_LCD_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo26_reg: ldo26 {
+					regulator-compatible = "LDO26";
+					regulator-name = "VDD_MOTOR_3.0V";
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+				};
+
+				buck1_reg: buck1 {
+					regulator-compatible = "BUCK1";
+					regulator-name = "vdd_mif";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck2_reg: buck2 {
+					regulator-compatible = "BUCK2";
+					regulator-name = "vdd_arm";
+					regulator-min-microvolt = <800000>;
+					regulator-max-microvolt = <1500000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck3_reg: buck3 {
+					regulator-compatible = "BUCK3";
+					regulator-name = "vdd_int";
+					regulator-min-microvolt = <1125000>;
+					regulator-max-microvolt = <1125000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck4_reg: buck4 {
+					regulator-compatible = "BUCK4";
+					regulator-name = "vdd_g3d";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck5_reg: buck5 {
+					regulator-compatible = "BUCK5";
+					regulator-name = "VDDQ_CKEM1_2_1.2V";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				buck6_reg: buck6 {
+					regulator-compatible = "BUCK6";
+					regulator-name = "BUCK6_1.35V";
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-always-on;
+				};
+
+				buck7_reg: buck7 {
+					regulator-compatible = "BUCK7";
+					regulator-name = "BUCK7_2.0V";
+					regulator-min-microvolt = <2000000>;
+					regulator-max-microvolt = <2000000>;
+					regulator-always-on;
+				};
+
+				buck8_reg: buck8 {
+					regulator-compatible = "BUCK8";
+					regulator-name = "BUCK8_2.8V";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				buck9_reg: buck9 {
+					regulator-compatible = "BUCK9";
+					regulator-name = "BUCK9_1.2V";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+				};
+			};
+		};
+	};
+};
-- 
1.9.1

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