ARM: dts: imx: Add GW5910 board support

The Gateworks GW5910 is an IMX6 SoC based single board computer with:
- IMX6Q or IMX6DL
- 32bit DDR3 DRAM
- FEC GbE RJ45 front-panel
- 1x miniPCIe socket with PCI Gen2, USB2
- 1x miniPCIe socket with PCI Gen2, USB2, nanoSIM
- 5V to 60V DC input barrel jack
- 3axis accelerometer (lis2de12)
- GPS (ublox ZOE-M8Q)
- bi-color front-panel LED
- 256MB NAND boot device
- microSD socket (with UHS-I support)
- user pushbutton
- Gateworks System Controller (hwmon, pushbutton controller, EEPROM)
- Dual-Band Wireless MCU (CC1352, UART/I2S interrconnect to IMX6)
- WiFi/Bluetooth/BLE module (Sterling-LSW, SDIO/UART interconnect to IMX6)
- RS232 transceiver (1x UART with flow-control or 2x UART (build option)
- off-board SPI connector (1x chip-select)

Signed-off-by: Tim Harvey <[e-mail]>
Signed-off-by: Robert Jones <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/Makefile

···
 	imx6dl-gw5903.dtb \
 	imx6dl-gw5904.dtb \
 	imx6dl-gw5907.dtb \
+	imx6dl-gw5910.dtb \
 	imx6dl-hummingboard.dtb \
 	imx6dl-hummingboard-emmc-som-v15.dtb \
 	imx6dl-hummingboard-som-v15.dtb \
···
 	imx6q-gw5903.dtb \
 	imx6q-gw5904.dtb \
 	imx6q-gw5907.dtb \
+	imx6q-gw5910.dtb \
 	imx6q-h100.dtb \
 	imx6q-hummingboard.dtb \
 	imx6q-hummingboard-emmc-som-v15.dtb \

arch/arm/boot/dts/imx6dl-gw5910.dts

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Gateworks Corporation
+ */
+
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+#include "imx6qdl-gw5910.dtsi"
+
+/ {
+	model = "Gateworks Ventana i.MX6 DualLite/Solo GW5910";
+	compatible = "gw,imx6dl-gw5910", "gw,ventana", "fsl,imx6dl";
+};

arch/arm/boot/dts/imx6q-gw5910.dts

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Gateworks Corporation
+ */
+
+/dts-v1/;
+
+#include "imx6q.dtsi"
+#include "imx6qdl-gw5910.dtsi"
+
+/ {
+	model = "Gateworks Ventana i.MX6 Dual/Quad GW5910";
+	compatible = "gw,imx6q-gw5910", "gw,ventana", "fsl,imx6q";
+};

arch/arm/boot/dts/imx6qdl-gw5910.dtsi

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Gateworks Corporation
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	/* these are used by bootloader for disabling nodes */
+	aliases {
+		led0 = &led0;
+		led1 = &led1;
+		led2 = &led2;
+	};
+
+	chosen {
+		stdout-path = &uart2;
+	};
+
+	memory@10000000 {
+		device_type = "memory";
+		reg = <0x10000000 0x20000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_leds>;
+
+		led0: user1 {
+			label = "user1";
+			gpios = <&gpio4 6 GPIO_ACTIVE_HIGH>; /* MX6_PANLEDG */
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+
+		led1: user2 {
+			label = "user2";
+			gpios = <&gpio4 7 GPIO_ACTIVE_HIGH>; /* MX6_PANLEDR */
+			default-state = "off";
+		};
+
+		led2: user3 {
+			label = "user3";
+			gpios = <&gpio4 15 GPIO_ACTIVE_LOW>; /* MX6_LOCLED# */
+			default-state = "off";
+		};
+	};
+
+	pps {
+		compatible = "pps-gpio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pps>;
+		gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
+		status = "okay";
+	};
+
+	reg_3p3v: regulator-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "3P3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	reg_5p0v: regulator-5p0v {
+		compatible = "regulator-fixed";
+		regulator-name = "5P0V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
+	reg_wl: regulator-wl {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_wl>;
+		compatible = "regulator-fixed";
+		regulator-name = "wl";
+		gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <100>;
+		enable-active-high;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	reg_bt: regulator-bt {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_bt>;
+		compatible = "regulator-fixed";
+		regulator-name = "bt";
+		gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <100>;
+		enable-active-high;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+};
+
+
+&ecspi3 {
+	cs-gpios = <&gpio4 24 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi3>;
+	status = "okay";
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+};
+
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand>;
+	status = "okay";
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	gpio@23 {
+		compatible = "nxp,pca9555";
+		reg = <0x23>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c02";
+		reg = <0x51>;
+		pagesize = <16>;
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c02";
+		reg = <0x52>;
+		pagesize = <16>;
+	};
+
+	eeprom@53 {
+		compatible = "atmel,24c02";
+		reg = <0x53>;
+		pagesize = <16>;
+	};
+
+	rtc@68 {
+		compatible = "dallas,ds1672";
+		reg = <0x68>;
+	};
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	accel@19 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_accel>;
+		compatible = "st,lis2de12";
+		reg = <0x19>;
+		st,drdy-int-pin = <1>;
+		interrupt-parent = <&gpio7>;
+		interrupts = <13 0>;
+		interrupt-names = "INT1";
+	};
+};
+
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pcie>;
+	reset-gpio = <&gpio3 20 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&pwm2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm2>; /* MX6_DIO1 */
+	status = "disabled";
+};
+
+&pwm3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm3>; /* MX6_DIO2 */
+	status = "disabled";
+};
+
+/* off-board RS232 */
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+/* serial console */
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+/* Sterling-LWB Bluetooth */
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+/* GPS */
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart5>;
+	status = "okay";
+};
+
+&usbotg {
+	vbus-supply = <&reg_5p0v>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg>;
+	disable-over-current;
+	status = "okay";
+};
+
+&usbh1 {
+	status = "okay";
+};
+
+/* Sterling-LWB SDIO WiFi */
+&usdhc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	vmmc-supply = <&reg_3p3v>;
+	non-removable;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	cd-gpios = <&gpio7 0 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&reg_3p3v>;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+};
+
+&iomuxc {
+	pinctrl_accel: accelmuxgrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_18__GPIO7_IO13		0x1b0b1
+		>;
+	};
+
+	pinctrl_ecspi3: escpi3grp {
+		fsl,pins = <
+			MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK	0x100b1
+			MX6QDL_PAD_DISP0_DAT1__ECSPI3_MOSI	0x100b1
+			MX6QDL_PAD_DISP0_DAT2__ECSPI3_MISO	0x100b1
+			MX6QDL_PAD_DISP0_DAT3__GPIO4_IO24	0x100b1
+		>;
+	};
+
+	pinctrl_enet: enetgrp {
+		fsl,pins = <
+			MX6QDL_PAD_RGMII_RXC__RGMII_RXC		0x1b030
+			MX6QDL_PAD_RGMII_RD0__RGMII_RD0		0x1b030
+			MX6QDL_PAD_RGMII_RD1__RGMII_RD1		0x1b030
+			MX6QDL_PAD_RGMII_RD2__RGMII_RD2		0x1b030
+			MX6QDL_PAD_RGMII_RD3__RGMII_RD3		0x1b030
+			MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL	0x1b030
+			MX6QDL_PAD_RGMII_TXC__RGMII_TXC		0x1b030
+			MX6QDL_PAD_RGMII_TD0__RGMII_TD0		0x1b030
+			MX6QDL_PAD_RGMII_TD1__RGMII_TD1		0x1b030
+			MX6QDL_PAD_RGMII_TD2__RGMII_TD2		0x1b030
+			MX6QDL_PAD_RGMII_TD3__RGMII_TD3		0x1b030
+			MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL	0x1b030
+			MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK	0x1b0b0
+			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
+			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
+			MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0x4001b0a8
+			MX6QDL_PAD_ENET_TXD0__GPIO1_IO30	0x1b0b0
+		>;
+	};
+
+	pinctrl_gpio_leds: gpioledsgrp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL0__GPIO4_IO06  0x1b0b0
+			MX6QDL_PAD_KEY_ROW0__GPIO4_IO07  0x1b0b0
+			MX6QDL_PAD_KEY_ROW4__GPIO4_IO15  0x1b0b0
+		>;
+	};
+
+	pinctrl_gpmi_nand: gpminandgrp {
+		fsl,pins = <
+			MX6QDL_PAD_NANDF_CLE__NAND_CLE		0xb0b1
+			MX6QDL_PAD_NANDF_ALE__NAND_ALE		0xb0b1
+			MX6QDL_PAD_NANDF_WP_B__NAND_WP_B	0xb0b1
+			MX6QDL_PAD_NANDF_RB0__NAND_READY_B	0xb000
+			MX6QDL_PAD_NANDF_CS0__NAND_CE0_B	0xb0b1
+			MX6QDL_PAD_SD4_CMD__NAND_RE_B		0xb0b1
+			MX6QDL_PAD_SD4_CLK__NAND_WE_B		0xb0b1
+			MX6QDL_PAD_NANDF_D0__NAND_DATA00	0xb0b1
+			MX6QDL_PAD_NANDF_D1__NAND_DATA01	0xb0b1
+			MX6QDL_PAD_NANDF_D2__NAND_DATA02	0xb0b1
+			MX6QDL_PAD_NANDF_D3__NAND_DATA03	0xb0b1
+			MX6QDL_PAD_NANDF_D4__NAND_DATA04	0xb0b1
+			MX6QDL_PAD_NANDF_D5__NAND_DATA05	0xb0b1
+			MX6QDL_PAD_NANDF_D6__NAND_DATA06	0xb0b1
+			MX6QDL_PAD_NANDF_D7__NAND_DATA07	0xb0b1
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D21__I2C1_SCL		0x4001b8b1
+			MX6QDL_PAD_EIM_D28__I2C1_SDA		0x4001b8b1
+			MX6QDL_PAD_GPIO_4__GPIO1_IO04		0x0001b0b0
+		>;
+	};
+
+	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_3__I2C3_SCL		0x4001b8b1
+			MX6QDL_PAD_GPIO_6__I2C3_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_pcie: pciegrp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D20__GPIO3_IO20		0x1b0b0
+		>;
+	};
+
+	pinctrl_pps: ppsgrp {
+		fsl,pins = <
+			MX6QDL_PAD_DI0_DISP_CLK__GPIO4_IO16	0x1b0b1
+		>;
+	};
+
+	pinctrl_pwm2: pwm2grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_DAT2__PWM2_OUT		0x1b0b1
+		>;
+	};
+
+	pinctrl_pwm3: pwm3grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_DAT1__PWM3_OUT		0x1b0b1
+		>;
+	};
+
+	pinctrl_reg_bt: regbtgrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_2__GPIO1_IO02		0x1b0b1
+		>;
+	};
+
+	pinctrl_reg_wl: regwlgrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_5__GPIO1_IO05		0x1b0b1
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD4_DAT7__UART2_TX_DATA	0x1b0b1
+			MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT12__UART4_TX_DATA	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT13__UART4_RX_DATA	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT16__UART4_RTS_B	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT17__UART4_CTS_B	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart5: uart5grp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL1__UART5_TX_DATA	0x1b0b1
+			MX6QDL_PAD_KEY_ROW1__UART5_RX_DATA	0x1b0b1
+		>;
+	};
+
+	pinctrl_usbotg: usbotggrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x13059
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		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		0x17059
+		>;
+	};
+
+	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
+			MX6QDL_PAD_SD3_DAT5__GPIO7_IO00		0x17059 /* CD */
+			MX6QDL_PAD_NANDF_CS1__SD3_VSELECT	0x17059
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3grp100mhz {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_CMD__SD3_CMD		0x170b9
+			MX6QDL_PAD_SD3_CLK__SD3_CLK		0x170b9
+			MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x170b9
+			MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x170b9
+			MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x170b9
+			MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x170b9
+			MX6QDL_PAD_SD3_DAT5__GPIO7_IO00		0x170b9 /* CD */
+			MX6QDL_PAD_NANDF_CS1__SD3_VSELECT	0x170b9
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3grp200mhz {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_CMD__SD3_CMD		0x170f9
+			MX6QDL_PAD_SD3_CLK__SD3_CLK		0x100f9
+			MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x170f9
+			MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x170f9
+			MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x170f9
+			MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x170f9
+			MX6QDL_PAD_SD3_DAT5__GPIO7_IO00		0x170f9 /* CD */
+			MX6QDL_PAD_NANDF_CS1__SD3_VSELECT	0x170f9
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
+		>;
+	};
+};