ARM: dts: imx6q: Add support for Zealz GK802

Add support for the GK802 'QUAD CORE Mini PC', which seems to be loosely
based on the Freescale i.MX6Q HDMI dongle reference design.
It is supposedly identical to the Hiapad Hi802.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/Makefile

@@ -169,6 +169,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx6q-cubox-i.dtb \
 	imx6q-dfi-fs700-m60.dtb \
 	imx6q-dmo-edmqmx6.dtb \
+	imx6q-gk802.dtb \
 	imx6q-gw51xx.dtb \
 	imx6q-gw52xx.dtb \
 	imx6q-gw53xx.dtb \

arch/arm/boot/dts/imx6q-gk802.dts

+/*
+ * Copyright (C) 2013 Philipp Zabel
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "imx6q.dtsi"
+
+/ {
+	model = "Zealz GK802";
+	compatible = "zealz,imx6q-gk802", "fsl,imx6q";
+
+	chosen {
+		linux,stdout-path = &uart4;
+	};
+
+	memory {
+		reg = <0x10000000 0x40000000>;
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg_3p3v: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		recovery-button {
+			label = "recovery";
+			gpios = <&gpio3 16 1>;
+			linux,code = <0x198>; /* KEY_RESTART */
+			gpio-key,wakeup;
+		};
+	};
+};
+
+/* Internal I2C */
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	/* SDMC DM2016 1024 bit EEPROM + 128 bit OTP */
+	eeprom: dm2016@51 {
+		compatible = "sdmc,dm2016";
+		reg = <0x51>;
+	};
+};
+
+/* External I2C via HDMI */
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	clock-frequency = <100000>;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	imx6q-gk802 {
+		pinctrl_hog: hoggrp {
+			fsl,pins = <
+				/* Recovery button, active-low */
+				MX6QDL_PAD_EIM_D16__GPIO3_IO16  0x100b1
+				/* RTL8192CU enable GPIO, active-low */
+				MX6QDL_PAD_NANDF_D0__GPIO2_IO00 0x1b0b0
+			>;
+		};
+
+		pinctrl_i2c2: i2c2grp {
+			fsl,pins = <
+				MX6QDL_PAD_KEY_COL3__I2C2_SCL		0x4001b8b1
+				MX6QDL_PAD_KEY_ROW3__I2C2_SDA		0x4001b8b1
+			>;
+		};
+
+		pinctrl_i2c3: i2c3grp {
+			fsl,pins = <
+				MX6QDL_PAD_GPIO_5__I2C3_SCL		0x4001b8b1
+				MX6QDL_PAD_GPIO_16__I2C3_SDA		0x4001b8b1
+			>;
+		};
+
+		pinctrl_uart4: uart4grp {
+			fsl,pins = <
+				MX6QDL_PAD_KEY_COL0__UART4_TX_DATA	0x1b0b1
+				MX6QDL_PAD_KEY_ROW0__UART4_RX_DATA	0x1b0b1
+			>;
+		};
+
+		pinctrl_usdhc3: usdhc3grp {
+			fsl,pins = <
+				MX6QDL_PAD_SD3_CMD__SD3_CMD		0x17059
+				MX6QDL_PAD_SD3_CLK__SD3_CLK		0x10059
+				MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x17059
+				MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17059
+				MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17059
+				MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17059
+			>;
+		};
+
+		pinctrl_usdhc4: usdhc4grp {
+			fsl,pins = <
+				MX6QDL_PAD_SD4_CMD__SD4_CMD		0x17059
+				MX6QDL_PAD_SD4_CLK__SD4_CLK		0x10059
+				MX6QDL_PAD_SD4_DAT0__SD4_DATA0		0x17059
+				MX6QDL_PAD_SD4_DAT1__SD4_DATA1		0x17059
+				MX6QDL_PAD_SD4_DAT2__SD4_DATA2		0x17059
+				MX6QDL_PAD_SD4_DAT3__SD4_DATA3		0x17059
+			>;
+		};
+	};
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+/* External USB-A port (USBOTG) */
+&usbotg {
+	disable-over-current;
+	status = "okay";
+};
+
+/* Internal USB port (USBH1), connected to RTL8192CU */
+&usbh1 {
+	disable-over-current;
+	status = "okay";
+};
+
+/* External microSD */
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	bus-width = <4>;
+	cd-gpios = <&gpio6 11 0>;
+	vmmc-supply = <&reg_3p3v>;
+	status = "okay";
+};
+
+/* Internal microSD */
+&usdhc4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc4>;
+	bus-width = <4>;
+	vmmc-supply = <&reg_3p3v>;
+	status = "okay";
+};