imx6: add support for gw52xx

The Gateworks GW51xx family of products is based on the Freescale
i.MX6DL SoC and offers a small form-factor with peripherals such as:

 * i.MX6DL 512MB DDR3
 * 256MB NAND FLASH
 * 2x PCIe
 * 1x USB EHCI (to PCIe socket2)
 * 1x USB OTG (to front panel or PCIe socket1)
 * 1x uSD
 * LVDS
 * HDMI AudioVideo out
 * Analog Video in
 * Digital IO
 * Gateworks System Controller

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38425 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 429 insertions, 0 deletions

diff --git a/target/linux/imx6/files-3.10/arch/arm/boot/dts/imx6dl-gw52xx.dts b/target/linux/imx6/files-3.10/arch/arm/boot/dts/imx6dl-gw52xx.dts
new file mode 100644
index 0000000000..42bd30e229
--- /dev/null
+++ b/target/linux/imx6/files-3.10/arch/arm/boot/dts/imx6dl-gw52xx.dts
@@ -0,0 +1,372 @@
+/*
+ * Copyright 2013 Gateworks Corporation
+ *
+ * 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 "imx6dl.dtsi"
+
+/ {
+	model = "Gateworks Ventana GW52XX";
+	compatible = "gw,imx6dl-gw52xx", "gw,ventana", "fsl,imx6dl";
+
+	/* these are used by bootloader for disabling nodes */
+	aliases {
+		ethernet0 = &fec;
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
+		i2c2 = &i2c3;
+		led0 = &led0;
+		led1 = &led1;
+		led2 = &led2;
+		nand = &gpmi;
+		ssi0 = &ssi1;
+		usb0 = &usbh1;
+		usb1 = &usbotg;
+		usdhc2 = &usdhc3;
+	};
+
+	memory {
+		reg = <0x10000000 0x20000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0: user1 {
+			label = "user1";
+			gpios = <&gpio4 6 0>; /* 102 -> MX6_PANLEDG */
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+
+		led1: user2 {
+			label = "user2";
+			gpios = <&gpio4 7 0>; /* 103 -> MX6_PANLEDR */
+			default-state = "off";
+		};
+
+		led2: user3 {
+			label = "user3";
+			gpios = <&gpio4 15 1>; /* 111 - MX6_LOCLED# */
+			default-state = "off";
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_1p0v: 1p0v {
+			compatible = "regulator-fixed";
+			regulator-name = "1P0V";
+			regulator-min-microvolt = <1000000>;
+			regulator-max-microvolt = <1000000>;
+			regulator-always-on;
+		};
+
+		/* remove this fixed regulator once ltc3676__sw2 driver available */
+		reg_1p8v: 1p8v {
+			compatible = "regulator-fixed";
+			regulator-name = "1P8V";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+		};
+
+		reg_3p3v: 3p3v {
+			compatible = "regulator-fixed";
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+
+		reg_5p0v: 5p0v {
+			compatible = "regulator-fixed";
+			regulator-name = "5P0V";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
+
+		reg_usb_otg_vbus: usb_otg_vbus {
+			compatible = "regulator-fixed";
+			regulator-name = "usb_otg_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio3 22 0>;
+			enable-active-high;
+		};
+	};
+
+	sound {
+		compatible = "fsl,imx6q-sabrelite-sgtl5000",
+			     "fsl,imx-audio-sgtl5000";
+		model = "imx6q-sabrelite-sgtl5000";
+		ssi-controller = <&ssi1>;
+		audio-codec = <&codec>;
+		audio-routing =
+			"MIC_IN", "Mic Jack",
+			"Mic Jack", "Mic Bias",
+			"Headphone Jack", "HP_OUT";
+		mux-int-port = <1>;
+		mux-ext-port = <4>;
+	};
+};
+
+&audmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_audmux_1>;
+	status = "okay";
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet_1>;
+	phy-mode = "rgmii";
+	phy-reset-gpios = <&gpio1 30 0>;
+	status = "okay";
+};
+
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand_2>;
+	status = "okay";
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1_1>;
+	status = "okay";
+
+	eeprom1: eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
+
+	eeprom2: eeprom@51 {
+		compatible = "atmel,24c02";
+		reg = <0x51>;
+		pagesize = <16>;
+	};
+
+	eeprom3: eeprom@52 {
+		compatible = "atmel,24c02";
+		reg = <0x52>;
+		pagesize = <16>;
+	};
+
+	eeprom4: eeprom@53 {
+		compatible = "atmel,24c02";
+		reg = <0x53>;
+		pagesize = <16>;
+	};
+
+	gpio: pca9555@23 {
+		compatible = "nxp,pca9555";
+		reg = <0x23>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	hwmon: gsc@29 {
+		compatible = "gw,gsp";
+		reg = <0x29>;
+	};
+
+	rtc: ds1672@68 {
+		compatible = "dallas,ds1672";
+		reg = <0x68>;
+	};
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2_2>;
+	status = "okay";
+
+	pciswitch: pex8609@3f {
+		compatible = "plx,pex8609";
+		reg = <0x3f>;
+	};
+
+	pmic: ltc3676@3c {
+		compatible = "ltc,ltc3676";
+		reg = <0x3c>;
+
+		regulators {
+			sw1_reg: ltc3676__sw1 {
+				regulator-min-microvolt = <1175000>;
+				regulator-max-microvolt = <1175000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw2_reg: ltc3676__sw2 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw3_reg: ltc3676__sw3 {
+				regulator-min-microvolt = <1175000>;
+				regulator-max-microvolt = <1175000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw4_reg: ltc3676__sw4 {
+				regulator-min-microvolt = <1500000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2_reg: ltc3676__ldo2 {
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3_reg: ltc3676__ldo3 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo4_reg: ltc3676__ldo4 {
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+		};
+	};
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3_2>;
+	status = "okay";
+
+	accelerometer: fxos8700@1e {
+		compatible = "fsl,fxos8700";
+		reg = <0x13>;
+	};
+
+	codec: sgtl5000@0a {
+		compatible = "fsl,sgtl5000";
+		reg = <0x0a>;
+		clocks = <&clks 169>;
+		VDDA-supply = <&reg_1p8v>;
+		VDDIO-supply = <&reg_3p3v>;
+	};
+
+	touchscreen: egalax_ts@04 {
+		compatible = "eeti,egalax_ts";
+		reg = <0x04>;
+		interrupt-parent = <&gpio7>;
+		interrupts = <12 2>; /* gpio7_12 active low */
+		wakeup-gpios = <&gpio7 12 0>;
+	};
+
+	videoin: adv7180@20 {
+		compatible = "adi,adv7180";
+		reg = <0x20>;
+	};
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	hog {
+		pinctrl_hog: hoggrp {
+			fsl,pins = <
+				MX6DL_PAD_EIM_A19__GPIO2_IO19   0x80000000 /* MEZZ_DIO0 */
+				MX6DL_PAD_EIM_A20__GPIO2_IO18   0x80000000 /* MEZZ_DIO1 */
+				MX6DL_PAD_EIM_D22__GPIO3_IO22   0x80000000 /* OTG_PWR_EN */
+				MX6DL_PAD_EIM_D31__GPIO3_IO31   0x80000000 /* VIDDEC_PDN# */
+				MX6DL_PAD_ENET_TXD0__GPIO1_IO30 0x80000000 /* PHY Reset */
+				MX6DL_PAD_ENET_TXD1__GPIO1_IO29 0x80000000 /* PCIE_RST# */
+				MX6DL_PAD_ENET_RXD0__GPIO1_IO27 0x80000000 /* GPS_PWDN */
+				MX6DL_PAD_ENET_RXD1__GPIO1_IO26 0x80000000 /* GPS_PPS */
+				MX6DL_PAD_GPIO_0__CCM_CLKO1     0x000130b0 /* AUD4_MCK */
+				MX6DL_PAD_GPIO_2__GPIO1_IO02    0x80000000 /* USB_SEL_PCI */
+				MX6DL_PAD_GPIO_17__GPIO7_IO12   0x80000000 /* TOUCH_IRQ# */
+				MX6DL_PAD_KEY_COL0__GPIO4_IO06  0x80000000 /* user1 led */
+				MX6DL_PAD_KEY_ROW0__GPIO4_IO07  0x80000000 /* user2 led */
+				MX6DL_PAD_KEY_ROW4__GPIO4_IO15  0x80000000 /* user3 led */
+				MX6DL_PAD_SD2_CMD__GPIO1_IO11   0x80000000 /* LVDS_TCH# */
+				MX6DL_PAD_SD3_DAT5__GPIO7_IO00  0x80000000 /* SD3_CD# */
+				MX6DL_PAD_SD4_DAT3__GPIO2_IO11  0x80000000 /* UART2_EN# */
+			 >;
+		};
+	};
+};
+
+&ldb {
+	status = "okay";
+	lvds-channel@0 {
+		crtcs = <&ipu1 0>, <&ipu1 1>;
+	};
+};
+
+&pcie {
+	reset-gpio = <&gpio1 29 0>;
+	status = "okay";
+};
+
+&ssi1 {
+	fsl,mode = "i2s-slave";
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1_2>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2_1>;
+	status = "okay";
+};
+
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart5_1>;
+	status = "okay";
+};
+
+&usbotg {
+	vbus-supply = <&reg_usb_otg_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg_1>;
+	disable-over-current;
+	status = "okay";
+};
+
+&usbh1 {
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3_2>;
+	cd-gpios = <&gpio7 0 0>;
+	vmmc-supply = <&reg_3p3v>;
+	status = "okay";
+};
diff --git a/target/linux/imx6/patches-3.10/113-gw52xx.patch b/target/linux/imx6/patches-3.10/113-gw52xx.patch
new file mode 100644
index 0000000000..4663a3b761
--- /dev/null
+++ b/target/linux/imx6/patches-3.10/113-gw52xx.patch
@@ -0,0 +1,57 @@
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -120,6 +120,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
+ 	imx6q-gw5400-a.dtb \
+ 	imx6q-gw54xx.dtb \
+ 	imx6dl-gw51xx.dtb \
++	imx6dl-gw52xx.dtb \
+ 	imx6q-sabreauto.dtb \
+ 	imx6q-sabrelite.dtb \
+ 	imx6q-sabresd.dtb \
+--- a/arch/arm/boot/dts/imx6dl.dtsi
++++ b/arch/arm/boot/dts/imx6dl.dtsi
+@@ -37,6 +37,18 @@
+ 				compatible = "fsl,imx6dl-iomuxc";
+ 				reg = <0x020e0000 0x4000>;
+ 
++				/* shared pinctrl settings */
++				audmux {
++					pinctrl_audmux_1: audmux-1 {
++						fsl,pins = <
++							MX6DL_PAD_SD2_DAT0__AUD4_RXD  0x80000000
++							MX6DL_PAD_SD2_DAT1__AUD4_TXFS 0x80000000
++							MX6DL_PAD_SD2_DAT2__AUD4_TXD  0x80000000
++							MX6DL_PAD_SD2_DAT3__AUD4_TXC  0x80000000
++						>;
++					};
++				};
++
+ 				enet {
+ 					pinctrl_enet_1: enetgrp-1 {
+ 						fsl,pins = <
+@@ -197,6 +209,12 @@
+ 							MX6DL_PAD_SD4_DAT4__UART2_TX_DATA 0x1b0b1
+ 						>;
+ 					};
++					pinctrl_uart2_3: uart2grp-3 {
++						fsl,pins = <
++							MX6DL_PAD_SD4_DAT7__UART2_TX_DATA 0x1b0b1
++							MX6DL_PAD_SD4_DAT4__UART2_RX_DATA 0x1b0b1
++						>;
++					};
+ 				};
+ 
+ 				uart3 {
+@@ -227,6 +245,12 @@
+ 				};
+ 
+ 				usbotg {
++					pinctrl_usbotg_1: usbotggrp-1 {
++						fsl,pins = <
++							MX6DL_PAD_GPIO_1__USB_OTG_ID 0x17059
++						>;
++					};
++
+ 					pinctrl_usbotg_2: usbotggrp-2 {
+ 						fsl,pins = <
+ 							MX6DL_PAD_ENET_RX_ER__USB_OTG_ID 0x17059