ARM: imx: initial SolidRun Cubox-i support

Add support for the SolidRun Cubox-i devices.  This commit adds similar
basic support as the HummingBoard.  Further devices will be supported
in future patches.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/boot/dts/Makefile

@@ -136,11 +136,13 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx53-mba53.dtb \
 	imx53-qsb.dtb \
 	imx53-smd.dtb \
+	imx6dl-cubox-i.dtb \
 	imx6dl-hummingboard.dtb \
 	imx6dl-sabreauto.dtb \
 	imx6dl-sabresd.dtb \
 	imx6dl-wandboard.dtb \
 	imx6q-arm2.dtb \
+	imx6q-cubox-i.dtb \
 	imx6q-phytec-pbab01.dtb \
 	imx6q-sabreauto.dtb \
 	imx6q-sabrelite.dtb \

arch/arm/boot/dts/imx6dl-cubox-i.dts

+/*
+ * Copyright (C) 2014 Russell King
+ */
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+#include "imx6qdl-cubox-i.dtsi"
+
+/ {
+	model = "SolidRun Cubox-i Solo/DualLite";
+	compatible = "solidrun,cubox-i/dl", "fsl,imx6dl";
+};

arch/arm/boot/dts/imx6q-cubox-i.dts

+/*
+ * Copyright (C) 2014 Russell King
+ */
+/dts-v1/;
+
+#include "imx6q.dtsi"
+#include "imx6qdl-cubox-i.dtsi"
+
+/ {
+	model = "SolidRun Cubox-i Dual/Quad";
+	compatible = "solidrun,cubox-i/q", "fsl,imx6q";
+};
+
+&sata {
+	status = "okay";
+};

arch/arm/boot/dts/imx6qdl-cubox-i.dtsi

+/*
+ * Copyright (C) 2014 Russell King
+ */
+#include "imx6qdl-microsom.dtsi"
+#include "imx6qdl-microsom-ar8035.dtsi"
+
+/ {
+	ir_recv: ir-receiver {
+		compatible = "gpio-ir-receiver";
+		gpios = <&gpio3 9 1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_cubox_i_ir>;
+	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_3p3v: 3p3v {
+			compatible = "regulator-fixed";
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+
+		reg_usbh1_vbus: usb-h1-vbus {
+			compatible = "regulator-fixed";
+			enable-active-high;
+			gpio = <&gpio1 0 0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_cubox_i_usbh1_vbus>;
+			regulator-name = "usb_h1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+		};
+
+		reg_usbotg_vbus: usb-otg-vbus {
+			compatible = "regulator-fixed";
+			enable-active-high;
+			gpio = <&gpio3 22 0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_cubox_i_usbotg_vbus>;
+			regulator-name = "usb_otg_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+		};
+	};
+
+	codec: spdif-transmitter {
+		compatible = "linux,spdif-dit";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_cubox_i_spdif>;
+	};
+
+	sound-spdif {
+		compatible = "fsl,imx-audio-spdif";
+		model = "imx-spdif";
+		/* IMX6 doesn't implement this yet */
+		spdif-controller = <&spdif>;
+		spdif-out;
+	};
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_cubox_i_i2c3>;
+
+	status = "okay";
+
+	rtc: pcf8523@68 {
+		compatible = "nxp,pcf8523";
+		reg = <0x68>;
+	};
+};
+
+&iomuxc {
+	cubox_i {
+		pinctrl_cubox_i_i2c3: cubox-i-i2c3 {
+			fsl,pins = <
+				MX6QDL_PAD_EIM_D17__I2C3_SCL 0x4001b8b1
+				MX6QDL_PAD_EIM_D18__I2C3_SDA 0x4001b8b1
+			>;
+		};
+
+		pinctrl_cubox_i_ir: cubox-i-ir {
+			fsl,pins = <
+				MX6QDL_PAD_EIM_DA9__GPIO3_IO09 0x80000000
+			>;
+		};
+
+		pinctrl_cubox_i_spdif: cubox-i-spdif {
+			fsl,pins = <MX6QDL_PAD_GPIO_17__SPDIF_OUT 0x1b0b0>;
+		};
+
+		pinctrl_cubox_i_usbh1_vbus: cubox-i-usbh1-vbus {
+			fsl,pins = <MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x4001b0b0>;
+		};
+
+		pinctrl_cubox_i_usbotg_vbus: cubox-i-usbotg-vbus {
+			fsl,pins = <MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x4001b0b0>;
+		};
+
+		pinctrl_cubox_i_usdhc2_aux: cubox-i-usdhc2-aux {
+			fsl,pins = <
+				MX6QDL_PAD_GPIO_4__GPIO1_IO04    0x1f071
+				MX6QDL_PAD_KEY_ROW1__SD2_VSELECT 0x1b071
+			>;
+		};
+
+		pinctrl_cubox_i_usdhc2: cubox-i-usdhc2 {
+			fsl,pins = <
+				MX6QDL_PAD_SD2_CMD__SD2_CMD    0x17059
+				MX6QDL_PAD_SD2_CLK__SD2_CLK    0x10059
+				MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x17059
+				MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x17059
+				MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x17059
+				MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x13059
+			>;
+		};
+	};
+};
+
+&spdif {
+	status = "okay";
+};
+
+&usbh1 {
+	vbus-supply = <&reg_usbh1_vbus>;
+	status = "okay";
+};
+
+&usbotg {
+	vbus-supply = <&reg_usbotg_vbus>;
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_cubox_i_usdhc2_aux &pinctrl_cubox_i_usdhc2>;
+	vmmc-supply = <&reg_3p3v>;
+	cd-gpios = <&gpio1 4 0>;
+	status = "okay";
+};