Apalis iMX6: add device tree for the Ixora board

The Ixora carrier board is mostly a subset off what is on the evaluation board.

The commits adds a device tree with the following changes to the eval board one:
- I2C EEPROM added
- LEDs through led sysfs interface added
- MMC 8bit interface disabled
- Reset line to PCIe switch and PCIe switch removed
- Video DAC to Analog RGB output disabled
- spidev on SPI2 removed
- mipi camera support disabled/removed

4 files changed, 412 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index de1a895b5603..ef7e5253fcaf 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -131,6 +131,8 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx6q-apalis-eval.dtb \
 	imx6q-apalis-eval_v1_0.dtb \
 	imx6q-arm2.dtb \
+	imx6q-apalis-ixora.dtb \
+	imx6q-apalis-ixora_v1_0.dtb \
 	imx6q-nitrogen6x.dtb \
 	imx6q-nitrogen6_max.dtb \
 	imx6q-nitrogen6_mtp.dtb \
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora.dts b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
new file mode 100644
index 000000000000..80a1087022a3
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2014 Toradex AG
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx6q.dtsi"
+#include "imx6qdl-apalis.dtsi"
+#include "imx6qdl-apalis-ixora.dtsi"
+
+/ {
+	model = "Toradex Apalis iMX6Q on Apalis Evaluation Board";
+	compatible = "toradex,apalis_imx6q-eval", "toradex,apalis_imx6q", "fsl,imx6q";
+};
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora_v1_0.dts b/arch/arm/boot/dts/imx6q-apalis-ixora_v1_0.dts
new file mode 100644
index 000000000000..498343eb6878
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora_v1_0.dts
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2014 Toradex AG
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx6q.dtsi"
+/* on HW V1.0 all RxD/TxD lines are routed in a DCE way, all control lines (RTS/...)
+   are then not routed as given in the module specification and thus unusable.
+   The following define configures the UARTs to RxD/TxD correctly */
+#define USE_UART_IN_DCE_MODE
+#include "imx6qdl-apalis.dtsi"
+#include "imx6qdl-apalis-ixora.dtsi"
+
+/ {
+	model = "Toradex Apalis iMX6Q on Apalis Evaluation Board";
+	compatible = "toradex,apalis_imx6q-eval", "toradex,apalis_imx6q", "fsl,imx6q";
+};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi b/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
new file mode 100644
index 000000000000..ba7cf68afb3c
--- /dev/null
+++ b/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
@@ -0,0 +1,357 @@
+/*
+ * Copyright 2014 Toradex AG
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/ {
+	aliases {
+		rtc0 = &rtc_i2c;
+		rtc1 = "/soc/aips-bus@02000000/snvs@020cc000/snvs-rtc-lp@34";
+	};
+
+	aliases {
+		/* the following, together with kernel patches, forces a fixed assignment
+		   between device id and usdhc controller */
+		/* i.e. the eMMC on usdhc3 will be /dev/mmcblk0 */
+		mmc0 = &usdhc3; /* eMMC */
+		mmc2 = &usdhc2; /* SD1  4bit slot */
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_keys>;
+
+		wakeup {
+			label = "wakeup";
+			gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WAKEUP>;
+			debounce-interval = <10>;
+			gpio-key,wakeup;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_leds_ixora>;
+
+		led4-green {
+			label = "LED_4_GREEN";
+			gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
+		};
+
+		led4-red {
+			label = "LED_4_RED";
+			gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
+		};
+
+		led5-green {
+			label = "LED_5_GREEN";
+			gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+		};
+
+		led5-red {
+			label = "LED_5_RED";
+			gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	pwmleds {
+		compatible = "pwm-leds";
+		ledpwm1 {
+			label = "PWM1";
+			pwms = <&pwm1 0 50000>;
+			max-brightness = <255>;
+		};
+
+		ledpwm2 {
+			label = "PWM2";
+			pwms = <&pwm2 0 50000>;
+			max-brightness = <255>;
+		};
+
+		ledpwm3 {
+			label = "PWM3";
+			pwms = <&pwm3 0 50000>;
+			max-brightness = <255>;
+		};
+	};
+
+	regulators {
+		reg_usb_otg_vbus: usb_otg_vbus {
+			status = "okay";
+		};
+
+		reg_usb_host_vbus: usb_host_vbus {
+			status = "okay";
+		};
+	};
+
+	v4l2_cap_0 {
+		compatible = "fsl,imx6q-v4l2-capture";
+		ipu_id = <0>;
+		csi_id = <0>;
+		mclk_source = <0>;
+		status = "okay";
+	};
+
+#if 0
+	v4l2_out {
+		compatible = "fsl,mxc_v4l2_output";
+		status = "okay";
+	};
+#endif
+};
+
+&backlight {
+#if 0 /* PWM polarity: if 1 is brightest */
+#if 0 /* Fusion 7 needs 10kHz PWM frequency */
+	pwms = <&pwm4 0 100000>;
+#endif
+	brightness-levels = <0 4 8 16 32 64 128 255>;
+	default-brightness-level = <6>;
+#else /* PWM plarity: if 0 is brightest */
+	brightness-levels = <0 127 191 223 239 247 251 255>;
+	default-brightness-level = <1>;
+#endif
+	status = "okay";
+};
+
+/* Apalis SPI1 */
+&ecspi1 {
+	status = "okay";
+
+	spidev0: spidev@1 {
+		compatible = "spidev";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+	};
+};
+
+&flexcan1 {
+	status = "okay";
+};
+
+&flexcan2 {
+	status = "okay";
+};
+
+&hdmi_audio {
+	status = "okay";
+};
+
+&hdmi_cec {
+	status = "okay";
+};
+
+&hdmi_core {
+	status = "okay";
+};
+
+&hdmi_video {
+	status = "okay";
+};
+
+/*
+ * GEN1_I2C: I2C1_SDA/SCL on MXM3 pin 209/211 (e.g. RTC on carrier
+ * board)
+ */
+&i2c1 {
+	status = "okay";
+
+	pcap@10 {
+		/* TouchRevolution Fusion 7 and 10 multi-touch controller */
+		compatible = "touchrevolution,fusion-f0710a";
+		reg = <0x10>;
+		gpios = <&gpio6 10 0 /* MXM-11, Pen down interrupt */
+			 &gpio6  9 0 /* MXM-13, Reset */
+			>;
+	};
+
+	cat24c02@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+	};
+
+	/* M41T0M6 real time clock on carrier board */
+	rtc_i2c: rtc@68 {
+		compatible = "st,m41t00";
+		reg = <0x68>;
+	};
+
+};
+
+/*
+ * GEN2_I2C, CAM: I2C3_SDA/SCL on MXM3 pin 201/203 (unused)
+ */
+&i2c3 {
+	status = "okay";
+
+	/* Video ADC on Analog Camera Module */
+	adv7180: adv7180@21 {
+		compatible = "adv,adv7180";
+		reg = <0x21>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ipu1_t2 &pinctrl_cam_mclk_t2>;
+		clocks = <&clks 200>;
+		clock-names = "csi_mclk";
+		DOVDD-supply = <&reg_3p3v>; /* 3.3v */
+		AVDD-supply = <&reg_3p3v>;  /* 1.8v */
+		DVDD-supply = <&reg_3p3v>;  /* 1.8v */
+		PVDD-supply = <&reg_3p3v>;  /* 1.8v */
+		csi_id = <0>;
+		mclk = <24000000>;
+		mclk_source = <1>;
+		cvbs = <1>;
+	};
+
+	max9526: max9526@20 {
+		compatible = "maxim,max9526";
+		reg = <0x20>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ipu1_t2 &pinctrl_cam_mclk_t2>;
+		clocks = <&clks 200>;
+		clock-names = "csi_mclk";
+		DVDDIO-supply = <&reg_3p3v>; /* 3.3v */
+		AVDD-supply = <&reg_3p3v>;  /* 1.8v */
+		DVDD-supply = <&reg_3p3v>;  /* 1.8v */
+		csi_id = <0>;
+		mclk = <24000000>;
+		mclk_source = <1>;
+		cvbs = <1>;
+	};
+};
+
+/*
+ * DDC_I2C: I2C2_SDA/SCL on MXM3 pin 205/207
+ */
+&i2cddc {
+	status = "okay";
+
+	hdmi: edid@50 {
+		compatible = "fsl,imx6-hdmi-i2c";
+		reg = <0x50>;
+	};
+};
+
+&iomuxc {
+	/*
+	 * Mux the Apalis GPIOs, GPIO7 used for PCIe reset,
+	 * GPIO5, 6 used by optional fusion_F0710A kernel module
+	 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_apalis_gpio1 &pinctrl_apalis_gpio2
+		     &pinctrl_apalis_gpio3 &pinctrl_apalis_gpio4
+		     &pinctrl_apalis_gpio5 &pinctrl_apalis_gpio6
+		     &pinctrl_apalis_gpio7 &pinctrl_apalis_gpio8>;
+
+	leds_ixora {
+		pinctrl_leds_ixora: leds-ixora {
+			fsl,pins = <
+				MX6QDL_PAD_SD1_DAT1__GPIO1_IO17 PAD_CTRL_HYS_PU
+				MX6QDL_PAD_SD1_DAT3__GPIO1_IO21 PAD_CTRL_HYS_PU
+				MX6QDL_PAD_NANDF_D1__GPIO2_IO01 PAD_CTRL_HYS_PU
+				MX6QDL_PAD_NANDF_D2__GPIO2_IO02 PAD_CTRL_HYS_PU
+			>;
+		};
+	};
+};
+
+&lcd {
+	status = "okay";
+};
+
+&mxcfb1 {
+	status = "okay";
+};
+
+&mxcfb2 {
+	status = "okay";
+};
+
+&mxcfb3 {
+	status = "okay";
+};
+
+&mxcfb4 {
+	status = "okay";
+};
+
+&pcie {
+	reset-ep-gpio = <&gpio1 28 0>;
+	status = "okay";
+};
+
+&pwm1 {
+	status = "okay";
+};
+
+&pwm2 {
+	status = "okay";
+};
+
+&pwm3 {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};
+
+&sata {
+	status = "okay";
+};
+
+&sound_hdmi {
+	status = "okay";
+};
+
+&sound_spdif {
+	status = "okay";
+};
+
+&spdif {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+#if 0
+	linux,rs485-enabled-at-boot-time;
+#endif
+};
+
+&uart4 {
+	status = "okay";
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&usbh1 {
+	status = "okay";
+};
+
+&usbotg {
+	status = "okay";
+};
+
+/* SD1 */
+&usdhc2 {
+	status = "okay";
+};