[PATCH v2 22/22] ARM: dts: exynos: Add initial support for Odroid XU board

[Krzysztof Kozlowski]

The Hardkernel's Odroid XU board was first design with big.LITTLE SoC
from Samsung: the Exynos5410. Comparing now to more popular Odroid XU3
the differences are:
1. Exynos5410 instead of 5422,
2. DisplayPort,
3. Main PMIC: Maxim 77802 instead of S2MPS11,
4. USB3503+LAN9730 instead of integrated LAN9514,
5. eMMC 4.5 instead of eMMC 5.0,

This patch adds initial support for the XU board with working basic
functions, eMMC/SD and USB (including attached ethernet adapter).

Signed-off-by: Krzysztof Kozlowski <krzk at kernel.org>
---
 .../bindings/arm/samsung/samsung-boards.txt        |   1 +
 arch/arm/boot/dts/Makefile                         |   1 +
 arch/arm/boot/dts/exynos5410-odroidxu.dts          | 166 +++++++++++++++++++++
 3 files changed, 168 insertions(+)
 create mode 100644 arch/arm/boot/dts/exynos5410-odroidxu.dts

diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt
index f5deace2b380..0ea7f14ef294 100644
--- a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt
@@ -47,6 +47,7 @@ Required root node properties:
 	- "hardkernel,odroid-u3"  - for Exynos4412-based Hardkernel Odroid U3.
 	- "hardkernel,odroid-x"   - for Exynos4412-based Hardkernel Odroid X.
 	- "hardkernel,odroid-x2"  - for Exynos4412-based Hardkernel Odroid X2.
+	- "hardkernel,odroid-xu"  - for Exynos5410-based Hardkernel Odroid XU.
 	- "hardkernel,odroid-xu3" - for Exynos5422-based Hardkernel Odroid XU3.
 	- "hardkernel,odroid-xu3-lite" - for Exynos5422-based Hardkernel
 					 Odroid XU3 Lite board.
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5aeb10674370..9ed1c7abedb1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -134,6 +134,7 @@ dtb-$(CONFIG_ARCH_EXYNOS5) += \
 	exynos5250-snow-rev5.dtb \
 	exynos5250-spring.dtb \
 	exynos5260-xyref5260.dtb \
+	exynos5410-odroidxu.dtb \
 	exynos5410-smdk5410.dtb \
 	exynos5420-arndale-octa.dtb \
 	exynos5420-peach-pit.dtb \
diff --git a/arch/arm/boot/dts/exynos5410-odroidxu.dts b/arch/arm/boot/dts/exynos5410-odroidxu.dts
new file mode 100644
index 000000000000..b0cbd53aeea9
--- /dev/null
+++ b/arch/arm/boot/dts/exynos5410-odroidxu.dts
@@ -0,0 +1,166 @@
+/*
+ * Hardkernel Odroid XU3 board device tree source
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2016 Krzysztof Kozlowski
+ *
+ * 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 "exynos5410.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "exynos54xx-odroidxu-leds.dtsi"
+
+/ {
+	model = "Hardkernel Odroid XU";
+	compatible = "hardkernel,odroid-xu", "samsung,exynos5410", "samsung,exynos5";
+
+	memory {
+		reg = <0x40000000 0x7EA00000>;
+	};
+
+	chosen {
+		linux,stdout-path = &serial_2;
+	};
+
+	/* TODO: these will be the same as in XU3-common file */
+	emmc_pwrseq: pwrseq {
+		pinctrl-0 = <&emmc_nrst_pin>;
+		pinctrl-names = "default";
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpd1 0 GPIO_ACTIVE_LOW>;
+	};
+
+	fan0: pwm-fan {
+		compatible = "pwm-fan";
+		pwms = <&pwm 0 20972 0>;
+		cooling-min-state = <0>;
+		cooling-max-state = <3>;
+		#cooling-cells = <2>;
+		cooling-levels = <0 130 170 230>;
+	};
+
+	fixed-rate-clocks {
+		oscclk {
+			compatible = "samsung,exynos5420-oscclk";
+			clock-frequency = <24000000>;
+		};
+	};
+
+	firmware at 02073000 {
+		compatible = "samsung,secure-firmware";
+		reg = <0x02073000 0x1000>;
+	};
+};
+
+/* TODO:
+&i2c_4 {
+	status = "okay";
+
+	ina231 at 40 {
+		compatible = "ti,ina231";
+		reg = <0x40>;
+		shunt-resistor = <10000>;
+	};
+
+	ina231 at 41 {
+		compatible = "ti,ina231";
+		reg = <0x41>;
+		shunt-resistor = <10000>;
+	};
+
+	ina231 at 44 {
+		compatible = "ti,ina231";
+		reg = <0x44>;
+		shunt-resistor = <10000>;
+	};
+
+	ina231 at 45 {
+		compatible = "ti,ina231";
+		reg = <0x45>;
+		shunt-resistor = <10000>;
+	};
+};
+*/
+
+&mmc_0 {
+	status = "okay";
+	mmc-pwrseq = <&emmc_pwrseq>;
+	cd-gpios = <&gpc0 2 GPIO_ACTIVE_LOW>;
+	card-detect-delay = <200>;
+	samsung,dw-mshc-ciu-div = <3>;
+	samsung,dw-mshc-sdr-timing = <0 4>;
+	samsung,dw-mshc-ddr-timing = <0 2>;
+	samsung,dw-mshc-hs400-timing = <0 2>;
+	samsung,read-strobe-delay = <90>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd>;
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	mmc-hs400-1_8v;
+	//vmmc-supply = <&ldo18_reg>; // FIXME
+	//vqmmc-supply = <&ldo3_reg>; // FIXME
+};
+
+&mmc_2 {
+	status = "okay";
+	card-detect-delay = <200>;
+	samsung,dw-mshc-ciu-div = <3>;
+	samsung,dw-mshc-sdr-timing = <0 4>;
+	samsung,dw-mshc-ddr-timing = <0 2>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus1 &sd2_bus4>;
+	bus-width = <4>;
+	cap-sd-highspeed;
+	//vmmc-supply = <&ldo19_reg>; // FIXME
+	//vqmmc-supply = <&ldo13_reg>; // Thats gonna be different than XU3 // FIXME
+};
+
+&pinctrl_0 {
+	emmc_nrst_pin: emmc-nrst {
+		samsung,pins = "gpd1-0";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+};
+
+&serial_0 {
+	status = "okay";
+};
+
+&serial_1 {
+	status = "okay";
+};
+
+&serial_2 {
+	status = "okay";
+};
+
+&serial_3 {
+	status = "okay";
+};
+
+&usbdrd_dwc3_0 {
+	dr_mode = "host";
+};
+
+&usbdrd_dwc3_1 {
+	dr_mode = "peripheral";
+};
+
+&usbdrd3_0 {
+//	vdd33-supply = <&ldo9_reg>;
+//	vdd10-supply = <&ldo11_reg>;
+};
+
+&usbdrd3_1 {
+//	vdd33-supply = <&ldo9_reg>;
+//	vdd10-supply = <&ldo11_reg>;
+};
-- 
2.5.0