[PATCH v3 3/3] ARM: imx7: add support for IoTmaxx GW4100

From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: Shawn Guo <shawnguo@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
	Fabio Estevam <festevam@gmail.com>,
	linux-imx@nxp.com
Subject: [PATCH v3 3/3] ARM: imx7: add support for IoTmaxx GW4100
Date: Thu,  6 May 2021 10:31:32 +0200	[thread overview]
Message-ID: <20210506083132.26147-3-s.trumtrar@pengutronix.de> (raw)
In-Reply-To: <20210506083132.26147-1-s.trumtrar@pengutronix.de>

The GW4100 is an i.MX7D based board from IoTmaxx GmbH.
The support is almost complete apart from the pmic setup.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
Changes since v2:
 - remove memory node
 - fixup node names to generic versions
 - fix phy-reset bindings

 arch/arm/boot/dts/Makefile                 |   1 +
 arch/arm/boot/dts/imx7d-iotmaxx-gw4100.dts | 776 +++++++++++++++++++++
 2 files changed, 777 insertions(+)
 create mode 100644 arch/arm/boot/dts/imx7d-iotmaxx-gw4100.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 8e5d4ab4e75e..3bc142407004 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -653,6 +653,7 @@ dtb-$(CONFIG_SOC_IMX7D) += \
 	imx7d-colibri-eval-v3.dtb \
 	imx7d-flex-concentrator.dtb \
 	imx7d-flex-concentrator-mfg.dtb \
+	imx7d-iotmaxx-gw4100.dtb \
 	imx7d-mba7.dtb \
 	imx7d-meerkat96.dtb \
 	imx7d-nitrogen7.dtb \
diff --git a/arch/arm/boot/dts/imx7d-iotmaxx-gw4100.dts b/arch/arm/boot/dts/imx7d-iotmaxx-gw4100.dts
new file mode 100644
index 000000000000..70b27e942f81
--- /dev/null
+++ b/arch/arm/boot/dts/imx7d-iotmaxx-gw4100.dts
@@ -0,0 +1,776 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+* Copyright (C) 2020 Steffen Trumtrar, Pengutronix
+* Copyright (C) 2020 Jürgen Borleis, Pengutronix
+*/
+
+/dts-v1/;
+#include "imx7d.dtsi"
+
+/ {
+	model = "IoTmaxx i.MX7D GW4100 Gateway";
+	compatible = "iotmaxx,imx7d-gw4100", "fsl,imx7d";
+
+	chosen {
+		stdout-path = &uart3;
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc1 0>, <&adc1 1>, <&adc1 2>, <&adc1 3>,
+			      <&adc2 0>, <&adc2 1>, <&adc2 2>;
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pinctrl_leds_usr>;
+		pinctrl-names = "default";
+
+		usr1 {
+			label = "iotmaxx:green:usr1";
+			gpios = <&gpio4 15 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		usr2 {
+			label = "iotmaxx:green:usr2";
+			gpios = <&gpio4 14 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	/* Main power supply at J1303 */
+	main_input: main-input-power-24v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "24v0";
+		regulator-min-microvolt = <24000000>;
+		regulator-max-microvolt = <24000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	main_power: regulator-main-5v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "5v0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&main_input>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_ldo_emmc_3v3: regulator-ldo-emmc-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "ldo_emmc_v3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_ldo_misc_3v3: regulator-ldo-misc-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "ldo_misc_v3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_dcdc_1v8: regulator-ldo-dcdc-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "ldo_dcdc_1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	reg_vadc_1v8: regulator-vadc-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "vadc_1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	/* Power for the serial converter. Needs to be enabled on boot */
+	reg_5v_periph: regulator-5v-periph {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_5v_reg>;
+		compatible = "regulator-fixed";
+		regulator-name = "5v_periph";
+		vin-supply = <&main_power>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio2 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	/*
+	 * There is no consumer for the GSM modem yet. Power needs to be
+	 * enabled before &usb_hub is probed. Otherwise the Modem is never
+	 * enumerated.
+	 */
+	reg_gsm_pwr_en_3v3: regulator-gsm-pwr-en-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "gsm_pwr_en_3v3";
+		pinctrl-names = "default";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio2 15 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	reg_usb_otg1_vbus: regulator-usb-otg1-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_otg1_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_otg2_vbus";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_usb_otg2_vbus_reg>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
+&adc1 {
+	vref-supply = <&reg_vadc_1v8>;
+	status = "okay";
+};
+
+&adc2 {
+	vref-supply = <&reg_vadc_1v8>;
+	status = "okay";
+};
+
+&ecspi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	cs-gpios = <&gpio4 23 GPIO_ACTIVE_LOW>;
+	status = "okay";
+
+	flash: spi-flash@0 {
+		compatible = "sst,sst25vf512", "m25p80", "jedec,spi-nor";
+		spi-max-frequency = <20000000>;
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@1 {
+			reg = <0x0 0x10000>;
+		};
+	};
+};
+
+/* Expansion slot */
+&ecspi3 {
+	/* disabled by default, changed by a DTS overlay */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi3>;
+	num-chipselects = <1>;
+	cs-gpios = <&gpio6 22 GPIO_ACTIVE_LOW>;
+};
+
+&fec2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet2>,
+		    <&pinctrl_mdio>,
+		    <&pinctrl_rmii_phy>;
+	/* set the enet_ref_clk and enet_out with a 50MHz clock */
+	assigned-clocks = <&clks IMX7D_ENET_PHY_REF_ROOT_DIV>;
+	assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>;
+	assigned-clock-rates = <50000000>;
+	clocks = <&clks IMX7D_ENET2_IPG_ROOT_CLK>,
+		 <&clks IMX7D_ENET_AXI_ROOT_CLK>,
+		 <&clks IMX7D_ENET2_TIME_ROOT_CLK>,
+		 <&clks IMX7D_PLL_ENET_MAIN_50M_CLK>,
+		 <&clks IMX7D_ENET2_REF_ROOT_DIV>;
+	clock-names = "ipg", "ahb", "ptp",
+		      "enet_clk_ref", "enet_out";
+	phy-handle = <&ethphy1>;
+	phy-mode = "rmii";
+	fsl,magic-packet;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy1: ethernet-phy@1 {
+			interrupt-parent = <&gpio2>;
+			interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&clks IMX7D_ENET2_REF_ROOT_DIV>;
+			clock-names = "rmii-ref";
+			reset-names = "phy";
+			reset-gpios = <&gpio2 27 GPIO_ACTIVE_LOW>;
+			reg = <1>;
+		};
+	};
+};
+
+&flexcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan1>;
+	xceiver-supply = <&reg_5v_periph>;
+	status = "okay";
+};
+
+&gpio1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio1>;
+
+	gpio-line-names = "gpio1_highside",
+			  "gpio1_lowside", "gpio1_pullup", "n_gpio1_in", "gpio2_highside", "gpio2_lowside",
+			  "n_usb_ext_oc", "usb_ext_pwr", "", "", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "",
+			  "";
+};
+
+&gpio2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio2>;
+	status = "okay";
+
+	gpio-line-names = "",
+			  "", "5v_periph_en", "", "sim_cd1", "sim_cd2",
+			  "", "", "", "", "",
+			  "", "", "", "", "gsm_pwr_en_3v3",
+			  "", "", "n_usbhub_int", "usbhub_connect", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "n_usbhub_rst",
+			  "";
+};
+
+&gpio3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio3>;
+	status = "okay";
+
+	gpio-line-names = "",
+			  "", "", "", "vusb_gsm_en", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "sim_enable",
+			  "", "", "", "", "",
+			  "";
+};
+
+&gpio4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio4>,
+		    <&pinctrl_gpio4_hog>;
+	status = "okay";
+
+	gpio-line-names = "",
+			  "", "", "", "", "",
+			  "", "", "", "", "",
+			  "", "n_can_term_en", "", "led_usr2", "led_usr1",
+			  "sim_sel", "gsm_reset", "", "n_gsm_pwr_ind", "",
+			  "", "", "", "", "",
+			  "", "", "", "", "",
+			  "";
+
+	gsm-pwr-on-off {
+		gpio-hog;
+		gpios = <18 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "gsm_power_on_off";
+	};
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	1wiremaster@18 {
+		compatible = "maxim,ds2482";
+		reg = <0x18>;
+	};
+};
+
+/* CTRL_I2C */
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	usb_hub: usb-hub@8 {
+		compatible = "smsc,usb3503";
+		reg = <0x8>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_usbhub>;
+		initial-mode = <1>;	/* HUB mode */
+		reset-gpios = <&gpio2 30 GPIO_ACTIVE_LOW>;
+		intn-gpios = <&gpio2 18 GPIO_ACTIVE_LOW>;
+		connect-gpios = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		clocks = <&clks IMX7D_OSC_24M_CLK>;
+		clock-names = "refclk";
+	};
+
+	tpm: tpm@20 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_tpm_irq>;
+		compatible = "infineon,slb9645tt";
+		interrupts-extended = <&gpio2 0 IRQ_TYPE_LEVEL_LOW>;
+		reg = <0x20>;
+	};
+
+	eeprom: eeprom@50 {
+		compatible = "atmel,24c64";
+		vcc-supply = <&reg_ldo_misc_3v3>;
+		pagesize = <32>;
+		reg = <0x50>;
+	};
+
+	pcf85363: rtc@51 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pcf_irq>;
+		compatible = "nxp,pcf85363";
+		interrupts-extended = <&gpio2 29 IRQ_TYPE_LEVEL_LOW>;
+		reg = <0x51>;
+	};
+
+	ACT8847: pmic@5a {
+		/* PMIC */
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_act_irg>;
+		compatible = "activa,act8847";
+		interrupts-extended = <&gpio3 26 IRQ_TYPE_LEVEL_LOW>;
+		reg = <0x5A>;
+	};
+};
+
+/* EXP_I2C */
+&i2c4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	clock-frequency = <100000>;
+	status = "okay";
+	/*
+	 * This EEPROM is part of an expansion board. And thus, it might not
+	 * be present, if no expansion board is attached.
+	 * But in order to be able to detect it, we must list it here a dummy.
+	 * Due to the nature of an optional expansion board, we cannot define
+	 * the EEPROM's power supply here, as it can be 5V (regulator-5v-periph)
+	 * or * 3.3 V (regulator-ldo-misc-3v3)
+	 */
+	exp_eeprom: eeprom@50 {
+		compatible = "atmel,24cs64";
+		pagesize = <32>;
+		reg = <0x50>;
+	};
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hook>;
+
+	pinctrl_hook: hookgrp {
+		/*
+		 * The following pads correspond to the UART6 connected to
+		 * the modem. As long the modem is not powered, the signals
+		 * should be forced to low level. It isn't possible for RxD,
+		 * since it has an external PU.
+		 * This block can be removed, when dealing with the modem is implemented.
+		 */
+		fsl,pins = <
+			/* 1.8 V power domain */
+			MX7D_PAD_SD1_CLK__GPIO5_IO3			0x14 /* 100 k PD */
+			MX7D_PAD_SD1_CD_B__GPIO5_IO0			0x04 /* external PU */
+			MX7D_PAD_SD1_WP__UART6_DCE_TX			0x14 /* 100 k PD */
+			MX7D_PAD_SD1_WP__GPIO5_IO1			0x14 /* 100 k PD */
+			MX7D_PAD_SD1_CMD__GPIO5_IO4			0x14 /* RI input, 100 k PD */
+			/* 3.3 V power domain */
+			MX7D_PAD_I2C1_SDA__GPIO4_IO9			0x04 /* DTR out, external PD and level shifter */
+			MX7D_PAD_I2C3_SDA__GPIO4_IO13			0x14 /* DCD in, 100 k PD, external level shifter */
+		>;
+	};
+
+	pinctrl_act_irg: act1grp {
+		fsl,pins = <
+			MX7D_PAD_LCD_DATA21__GPIO3_IO26			0x58 /* 47 k PU + Hys */
+		>;
+	};
+
+	pinctrl_ecspi2: ecspi2grp {
+		fsl,pins = <
+			MX7D_PAD_ECSPI2_MISO__ECSPI2_MISO		0x7c /* 100 k PU */
+			MX7D_PAD_ECSPI2_MOSI__ECSPI2_MOSI		0x74 /* 100 k PU */
+			MX7D_PAD_ECSPI2_SCLK__ECSPI2_SCLK		0x00 /* fast slew rate */
+			MX7D_PAD_ECSPI2_SS0__GPIO4_IO23			0x00 /* fast slew rate */
+		>;
+	};
+
+	pinctrl_ecspi3: ecspi3grp {
+		fsl,pins = <
+			MX7D_PAD_SAI2_TX_SYNC__ECSPI3_MISO		0x7c /* EXP_SPI_MISO */
+			MX7D_PAD_SAI2_TX_BCLK__ECSPI3_MOSI		0x74 /* EXP_SPI_MOSI */
+			MX7D_PAD_SAI2_RX_DATA__ECSPI3_SCLK		0x00 /* EXP_SPI_CLK */
+			MX7D_PAD_SAI2_TX_DATA__GPIO6_IO22		0x00 /* EXP_SPI_CS, fast slew rate */
+		>;
+	};
+
+	pinctrl_pcf_irq: pcf1grp{
+		fsl,pins = <
+			MX7D_PAD_EPDC_BDR1__GPIO2_IO29			0x58 /* 47 k PU + Hys */
+		>;
+	};
+
+	pinctrl_enet2: enet2grp {
+		fsl,pins = <
+			MX7D_PAD_EPDC_SDCE0__ENET2_RGMII_RX_CTL		0x5		/* ENET2_CRS_DV */
+			MX7D_PAD_EPDC_SDCE1__ENET2_RX_ER		0x5		/* ENET2_RXER */
+			MX7D_PAD_EPDC_SDCE2__ENET2_RGMII_TD0		0x5		/* ENET2_TXD0 */
+			MX7D_PAD_EPDC_SDCE3__ENET2_RGMII_TD1		0x5		/* ENET2_TXD1 */
+			MX7D_PAD_EPDC_SDCLK__ENET2_RGMII_RD0		0x5		/* ENET2_RXD0 */
+			MX7D_PAD_EPDC_SDLE__ENET2_RGMII_RD1		0x5		/* ENET2_RXD1 */
+			MX7D_PAD_EPDC_GDCLK__GPIO2_IO24			0x5		/* ENET2_B-CAST_OFF */
+			MX7D_PAD_EPDC_GDRL__ENET2_RGMII_TX_CTL		0x5		/* ENET2_TXEN */
+			MX7D_PAD_EPDC_BDR0__CCM_ENET_REF_CLK2		0x40000001	/* ENET2_TX_CLK */
+		>;
+	};
+
+	pinctrl_tpm_irq: tpm1grp  {
+		fsl,pins = <
+			MX7D_PAD_EPDC_DATA00__GPIO2_IO0			0x58 /* 47 k PU + Hys */
+		>;
+	};
+
+	pinctrl_flexcan1: flexcan1grp {
+		fsl,pins = <
+			MX7D_PAD_GPIO1_IO12__FLEXCAN1_RX		0x5a
+			MX7D_PAD_GPIO1_IO13__FLEXCAN1_TX		0x52
+		>;
+	};
+
+	pinctrl_5v_reg: reg5v1grp {
+		fsl,pins = <
+			MX7D_PAD_EPDC_DATA02__GPIO2_IO2			0x04 /* 5V_PERIPH_EN */
+		>;
+	};
+
+	pinctrl_gpio2: gpio2grp {
+		fsl,pins = <
+			MX7D_PAD_EPDC_DATA15__GPIO2_IO15		0x14 /* GSM_PWR_EN_3V3 */
+			MX7D_PAD_EPDC_DATA04__GPIO2_IO4			0x14 /* SIM_CD1 */
+			MX7D_PAD_EPDC_DATA05__GPIO2_IO5			0x14 /* SIM_CD2 */
+		>;
+	};
+
+	pinctrl_gpio3: gpio3grp {
+		fsl,pins = <
+			MX7D_PAD_LCD_RESET__GPIO3_IO4			0x79 /* VUSB_GSM_EN */
+			MX7D_PAD_LCD_DATA20__GPIO3_IO25			0x14 /* SIM_ENABLE */
+		>;
+	};
+
+	pinctrl_gpio4: gpio4grp {
+		fsl,pins = <
+			MX7D_PAD_ECSPI1_SS0__GPIO4_IO19			0x59 /* !GSM_PWR_IND */
+			MX7D_PAD_ECSPI1_SCLK__GPIO4_IO16		0x59 /* SIM_SEL */
+			MX7D_PAD_I2C3_SCL__GPIO4_IO12			0x59 /* !CAN_TERM_EN */
+			MX7D_PAD_ECSPI1_MOSI__GPIO4_IO17		0x03 /* GSM_RST */
+		>;
+	};
+
+	pinctrl_gpio4_hog: gpio4hoggrp {
+		fsl,pins = <
+			MX7D_PAD_ECSPI1_MISO__GPIO4_IO18		0x73 /* GSM_POWER_ON_OFF */
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX7D_PAD_UART1_RX_DATA__I2C1_SCL		0x40000078
+			MX7D_PAD_UART1_TX_DATA__I2C1_SDA		0x40000078
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX7D_PAD_ENET1_RGMII_RD1__I2C3_SDA		0x40000078
+			MX7D_PAD_ENET1_RGMII_RD0__I2C3_SCL		0x40000078
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			/* external 4.7 k PU */
+			MX7D_PAD_ENET1_RGMII_TD3__I2C4_SDA		0x4000000C
+			/* external 4.7 k PU */
+			MX7D_PAD_ENET1_RGMII_TD2__I2C4_SCL		0x4000000C
+		>;
+	};
+
+	pinctrl_leds_usr: ledsusrgrp {
+		fsl,pins = <
+			MX7D_PAD_I2C4_SDA__GPIO4_IO15			0x51 /* LED USR1 */
+			MX7D_PAD_I2C4_SCL__GPIO4_IO14			0x51 /* LED USR2 */
+		>;
+	};
+
+	pinctrl_mdio: mdiogrp {
+		fsl,pins = <
+			MX7D_PAD_UART2_RX_DATA__ENET2_MDIO		0x3 /* ENET_MDIO */
+			MX7D_PAD_UART2_TX_DATA__ENET2_MDC		0x3 /* ENET_MDC */
+		>;
+	};
+
+	pinctrl_rmii_phy: phygrp {
+		fsl,pins = <
+			MX7D_PAD_EPDC_GDSP__GPIO2_IO27			0x59 /* !ENET2_RST */
+			MX7D_PAD_EPDC_GDOE__GPIO2_IO25			0x59 /* !ENET2_INT */
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX7D_PAD_UART3_RX_DATA__UART3_DCE_RX		0x79
+			MX7D_PAD_UART3_TX_DATA__UART3_DCE_TX		0x79
+			MX7D_PAD_UART3_RTS_B__UART3_DCE_RTS		0x79
+			MX7D_PAD_UART3_CTS_B__UART3_DCE_CTS		0x79
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX7D_PAD_I2C1_SCL__GPIO4_IO8			0x79 /* RS485_DE */
+			MX7D_PAD_I2C2_SCL__UART4_DCE_RX			0x79 /* RS485_R */
+			MX7D_PAD_I2C2_SDA__UART4_DCE_TX			0x79 /* RS458_D */
+		>;
+	};
+
+	pinctrl_uart6: uart6grp {
+		fsl,pins = <
+			/* 1.8 V power domain */
+			MX7D_PAD_SD1_CLK__UART6_DCE_CTS			0x04 /* input */
+			MX7D_PAD_SD1_CD_B__UART6_DCE_RX			0x04 /* input, external PU */
+			MX7D_PAD_SD1_WP__UART6_DCE_TX			0x00
+			MX7D_PAD_SD1_RESET_B__UART6_DCE_RTS		0x00
+			MX7D_PAD_SD1_CMD__GPIO5_IO4			0x04 /* RI input */
+			/* 3.3 V power domain */
+			MX7D_PAD_I2C1_SDA__GPIO4_IO9			0x00 /* DTR out, external level shifter */
+			MX7D_PAD_I2C3_SDA__GPIO4_IO13			0x54 /* DCD in, 47 k PU, external level shifter */
+		>;
+	};
+
+	pinctrl_usbhub: usbhubgrp {
+		fsl,pins = <
+			MX7D_PAD_EPDC_PWR_COM__GPIO2_IO30		0x59 /* !USBHUB_RST */
+			MX7D_PAD_EPDC_SDOE__GPIO2_IO18			0x59 /* !USBHUB_INT */
+			MX7D_PAD_EPDC_SDSHR__GPIO2_IO19			0x59 /* USBHUB_CONNECT */
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX7D_PAD_SD2_CMD__SD2_CMD			0x59
+			MX7D_PAD_SD2_CLK__SD2_CLK			0x19
+			MX7D_PAD_SD2_DATA0__SD2_DATA0			0x59
+			MX7D_PAD_SD2_DATA1__SD2_DATA1			0x59
+			MX7D_PAD_SD2_DATA2__SD2_DATA2			0x59
+			MX7D_PAD_SD2_DATA3__SD2_DATA3			0x59
+			MX7D_PAD_SD2_CD_B__SD2_CD_B			0x59
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX7D_PAD_SD3_CMD__SD3_CMD			0x59
+			MX7D_PAD_SD3_CLK__SD3_CLK			0x19
+			MX7D_PAD_SD3_DATA0__SD3_DATA0			0x59
+			MX7D_PAD_SD3_DATA1__SD3_DATA1			0x59
+			MX7D_PAD_SD3_DATA2__SD3_DATA2			0x59
+			MX7D_PAD_SD3_DATA3__SD3_DATA3			0x59
+			MX7D_PAD_SD3_DATA4__SD3_DATA4			0x59
+			MX7D_PAD_SD3_DATA5__SD3_DATA5			0x59
+			MX7D_PAD_SD3_DATA6__SD3_DATA6			0x59
+			MX7D_PAD_SD3_DATA7__SD3_DATA7			0x59
+			MX7D_PAD_SD3_STROBE__SD3_STROBE			0x19
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3grp_100mhz {
+		fsl,pins = <
+			MX7D_PAD_SD3_CMD__SD3_CMD			0x5a
+			MX7D_PAD_SD3_CLK__SD3_CLK			0x1a
+			MX7D_PAD_SD3_DATA0__SD3_DATA0			0x5a
+			MX7D_PAD_SD3_DATA1__SD3_DATA1			0x5a
+			MX7D_PAD_SD3_DATA2__SD3_DATA2			0x5a
+			MX7D_PAD_SD3_DATA3__SD3_DATA3			0x5a
+			MX7D_PAD_SD3_DATA4__SD3_DATA4			0x5a
+			MX7D_PAD_SD3_DATA5__SD3_DATA5			0x5a
+			MX7D_PAD_SD3_DATA6__SD3_DATA6			0x5a
+			MX7D_PAD_SD3_DATA7__SD3_DATA7			0x5a
+			MX7D_PAD_SD3_STROBE__SD3_STROBE			0x1a
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3grp_200mhz {
+		fsl,pins = <
+			MX7D_PAD_SD3_CMD__SD3_CMD			0x5b
+			MX7D_PAD_SD3_CLK__SD3_CLK			0x1b
+			MX7D_PAD_SD3_DATA0__SD3_DATA0			0x5b
+			MX7D_PAD_SD3_DATA1__SD3_DATA1			0x5b
+			MX7D_PAD_SD3_DATA2__SD3_DATA2			0x5b
+			MX7D_PAD_SD3_DATA3__SD3_DATA3			0x5b
+			MX7D_PAD_SD3_DATA4__SD3_DATA4			0x5b
+			MX7D_PAD_SD3_DATA5__SD3_DATA5			0x5b
+			MX7D_PAD_SD3_DATA6__SD3_DATA6			0x5b
+			MX7D_PAD_SD3_DATA7__SD3_DATA7			0x5b
+			MX7D_PAD_SD3_STROBE__SD3_STROBE			0x1b
+		>;
+	};
+
+	pinctrl_wdog1: wdog1grp {
+		fsl,pins = <
+			MX7D_PAD_ENET1_COL__WDOG1_WDOG_ANY		0x51
+		>;
+	};
+};
+
+&iomuxc_lpsr {
+	pinctrl_gpio1: gpio1grp {
+		fsl,pins = <
+			MX7D_PAD_LPSR_GPIO1_IO00__GPIO1_IO0		0x00 /* GPIO1_HIGHSIDE */
+			MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1		0x00 /* GPIO1_LOWSIDE */
+			MX7D_PAD_LPSR_GPIO1_IO02__GPIO1_IO2		0x00 /* GPIO1_PULLUP */
+			MX7D_PAD_LPSR_GPIO1_IO03__GPIO1_IO3		0x00 /* GPIO1_IN */
+			MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4		0x00 /* GPIO2_HIGHSIDE */
+			MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5		0x00 /* GPIO2_LOWSIDE */
+			MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6		0x00 /* !USB_EXT_OC */
+		>;
+	};
+
+	pinctrl_usb_otg2_vbus_reg: usbotg2vbusreggrp {
+		fsl,pins = <
+			MX7D_PAD_LPSR_GPIO1_IO07__GPIO1_IO7		0x14 /* USB_EXT_PWR */
+		>;
+	};
+};
+
+&uart2 {
+	/* TODO spare serial at J1300 */
+	uart-has-rtscts;
+};
+
+&uart3 {
+	/* Serial Console at J1305 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	assigned-clocks = <&clks IMX7D_UART3_ROOT_SRC>;
+	assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+/* Maxlinear SP483 RS-485 transceiver */
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	rts-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+	linux,rs485-enabled-at-boot-time;
+	status = "okay";
+};
+
+&uart6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart6>;
+	/* TODO used for GSM communication */
+	uart-has-rtscts;
+};
+
+&uart7 {
+	/* spare serial at J500 */
+};
+
+&usbphynop3 {
+	vcc-supply = <&reg_ldo_misc_3v3>;
+};
+
+&usbh {
+	disable-over-current;
+	status = "okay";
+};
+
+&usbphynop1 {
+	vcc-supply = <&reg_usb_otg1_vbus>;
+};
+
+&usbotg1 {
+	vbus-supply = <&reg_ldo_misc_3v3>;
+	dr_mode = "otg";
+	disable-over-current;
+	status = "okay";
+};
+
+&usbphynop2 {
+	vcc-supply = <&reg_usb_otg2_vbus>;
+};
+
+&usbotg2 {
+	vbus-supply = <&reg_usb_otg2_vbus>;
+	dr_mode = "host";
+	disable-over-current;
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	assigned-clocks = <&clks IMX7D_USDHC3_ROOT_CLK>;
+	assigned-clock-rates = <400000000>;
+	bus-width = <8>;
+	no-sd;
+	no-sdio;
+	disable-wp;
+	fsl,tuning-step = <2>;
+	non-removable;
+	vmmc-supply = <&reg_ldo_emmc_3v3>;
+	vqmmc-supply = <&reg_dcdc_1v8>;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog1>;
+	fsl,ext-reset-output;
+};
+
+/* These watchdogs are unused, *BUT* as the ext-reset-output on wdog1 is
+ * muxed to the WDOG_ANY pin, any watchdog that triggers also triggers the
+ * WDOG_ANY pin. The i.MX2 watchdog has an internal power-down counter of
+ * 16s. This counter is set after every POR and then runs and triggers if it
+ * is not disabled. When wdog2/3/4 are not probed on startup, they will therefore
+ * trigger the WDOG_ANY pin after 16s. Set the status to okay, so the driver will
+ * disable the power-down counter.
+ */
+
+&wdog2 {
+	status = "okay";
+};
+
+&wdog3 {
+	status = "okay";
+};
+
+&wdog4 {
+	status = "okay";
+};
-- 
2.29.2


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