286 lines
6.5 KiB
Plaintext
286 lines
6.5 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright 2023 DimOnOff
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*/
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/dts-v1/;
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#include <dt-bindings/usb/pd.h>
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#include "imx8mn-var-som.dtsi"
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/ {
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model = "RVE gateway";
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compatible = "rve,gateway", "variscite,var-som-mx8mn", "fsl,imx8mn";
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crystal_duart_24m: crystal-duart-24m {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <24000000>;
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};
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gpio-keys {
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compatible = "gpio-keys";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_gpio_keys>;
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key-enter {
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label = "enter";
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gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_ENTER>;
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};
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key-exit {
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label = "exit";
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gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_ESC>;
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};
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};
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lcd {
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compatible = "hit,hd44780";
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display-height-chars = <2>;
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display-width-chars = <20>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_lcd>;
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data-gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>,
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<&gpio1 6 GPIO_ACTIVE_HIGH>,
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<&gpio1 14 GPIO_ACTIVE_HIGH>,
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<&gpio4 28 GPIO_ACTIVE_HIGH>,
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<&gpio5 24 GPIO_ACTIVE_HIGH>,
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<&gpio5 2 GPIO_ACTIVE_HIGH>,
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<&gpio1 12 GPIO_ACTIVE_HIGH>,
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<&gpio5 25 GPIO_ACTIVE_HIGH>;
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enable-gpios = <&gpio5 23 GPIO_ACTIVE_HIGH>;
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rs-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
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rw-gpios = <&gpio4 27 GPIO_ACTIVE_HIGH>;
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};
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reg_3p3v: regulator-3p3v {
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compatible = "regulator-fixed";
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regulator-name = "3P3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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/* Bourns PEC12R rotary encoder, 24 steps. */
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rotary: rotary-encoder {
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compatible = "rotary-encoder";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_rotary>;
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gpios = <&gpio1 5 GPIO_ACTIVE_LOW>, /* A */
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<&gpio3 21 GPIO_ACTIVE_LOW>; /* B */
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linux,axis = <0>; /* REL_X */
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rotary-encoder,encoding = "gray";
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rotary-encoder,relative-axis;
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};
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};
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&ecspi1 {
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cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
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duart1: serial@0 {
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compatible = "nxp,sc16is752";
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reg = <0>;
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spi-rx-bus-width = <1>;
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spi-tx-bus-width = <1>;
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spi-max-frequency = <4000000>;
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clocks = <&crystal_duart_24m>;
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interrupt-parent = <&gpio3>;
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interrupts = <22 IRQ_TYPE_EDGE_FALLING>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "RADIO0", "RADIO1", "RADIO2", "RADIO3",
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"RADIO4", "RADIO_RESET", "TP12", "TP11";
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linux,rs485-enabled-at-boot-time;
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rs485-rts-active-low;
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};
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/delete-node/ touchscreen@0;
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};
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&ecspi2 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_ecspi2>;
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cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
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/delete-property/ dmas;
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/delete-property/ dma-names;
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status = "okay";
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duart2: serial@0 {
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compatible = "nxp,sc16is752";
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reg = <0>;
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spi-rx-bus-width = <1>;
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spi-tx-bus-width = <1>;
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spi-max-frequency = <4000000>;
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clocks = <&crystal_duart_24m>;
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interrupt-parent = <&gpio3>;
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interrupts = <20 IRQ_TYPE_EDGE_FALLING>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "LED_B_USER", "LED_R_USER", "LED_G_USER",
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"GPIO_EXT3", "GPIO_EXT2", "GPIO_EXT1",
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"GPIO_EXT0", "TP13";
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linux,rs485-enabled-at-boot-time;
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rs485-rts-active-low;
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};
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};
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/* Configure PWM pins in GPIO mode: */
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&gpio5 {
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gpio-line-names = "", "", "", "PWM3", "PWM2", "PWM1";
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};
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&gpu {
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status = "disabled";
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};
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&i2c2 {
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clock-frequency = <400000>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_i2c2>;
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status = "okay";
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/* Carrier board EEPROM */
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eeprom_cb: eeprom@56 {
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compatible = "atmel,24c04";
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reg = <0x56>;
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pagesize = <16>;
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vcc-supply = <®_3p3v>;
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};
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lm75: sensor@48 {
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compatible = "st,stlm75";
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reg = <0x48>;
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vs-supply = <®_3p3v>;
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};
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mcp7940: rtc@6f {
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compatible = "microchip,mcp7940x";
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reg = <0x6f>;
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};
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};
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&i2c3 {
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codec@1a {
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status = "disabled";
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};
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};
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&i2c4 {
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clock-frequency = <400000>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_i2c4>;
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status = "okay";
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pcf8574_1: gpio@38 {
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compatible = "nxp,pcf8574";
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reg = <0x38>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "LED_B_COMM3", "LED_R_COMM3", "LED_G_COMM3",
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"TP14", "TP15", "LED_G_COMM4", "LED_R_COMM4",
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"LED_B_COMM4";
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};
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pcf8574_2: gpio@39 {
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compatible = "nxp,pcf8574";
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reg = <0x39>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "LED_B_COMM2", "LED_G_COMM2", "LED_B_COMM1",
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"LED_R_COMM2", "LED_R_COMM1", "LED_G_COMM1",
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"TP16", "TP17";
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};
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};
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/* Bluetooth */
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&uart2 {
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status = "disabled";
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};
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&usbotg1 {
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dr_mode = "host";
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disable-over-current;
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status = "okay";
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};
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/* SD interface on expansion connector. */
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&usdhc2 {
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vmmc-supply = <®_3p3v>;
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cd-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
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};
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&iomuxc {
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pinctrl_ecspi1: ecspi1grp {
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fsl,pins = <
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MX8MN_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK 0x13
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MX8MN_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI 0x13
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MX8MN_IOMUXC_ECSPI1_MISO_ECSPI1_MISO 0x13
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MX8MN_IOMUXC_ECSPI1_SS0_GPIO5_IO9 0x13 /* SS0 */
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MX8MN_IOMUXC_SAI5_RXD1_GPIO3_IO22 0x13 /* SC16 IRQ */
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>;
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};
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pinctrl_ecspi2: ecspi2grp {
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fsl,pins = <
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MX8MN_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x13
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MX8MN_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x13
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MX8MN_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x13
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MX8MN_IOMUXC_ECSPI2_SS0_GPIO5_IO13 0x13 /* SS0 */
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MX8MN_IOMUXC_SAI5_RXC_GPIO3_IO20 0x13 /* SC16 IRQ */
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>;
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};
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pinctrl_gpio_keys: gpiokeysgrp {
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fsl,pins = <
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MX8MN_IOMUXC_GPIO1_IO01_GPIO1_IO1 0xc6 /* Enter */
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MX8MN_IOMUXC_SAI5_RXD2_GPIO3_IO23 0xc6 /* Exit */
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>;
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};
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pinctrl_i2c2: i2c2grp {
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fsl,pins = <
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MX8MN_IOMUXC_I2C2_SCL_I2C2_SCL 0x400001c3
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MX8MN_IOMUXC_I2C2_SDA_I2C2_SDA 0x400001c3
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>;
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};
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pinctrl_i2c4: i2c4grp {
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fsl,pins = <
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MX8MN_IOMUXC_I2C4_SCL_I2C4_SCL 0x400001c3
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MX8MN_IOMUXC_I2C4_SDA_I2C4_SDA 0x400001c3
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>;
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};
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pinctrl_lcd: lcdgrp {
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fsl,pins = <
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MX8MN_IOMUXC_SAI3_TXD_GPIO5_IO1 0x00000156 /* D0 */
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MX8MN_IOMUXC_GPIO1_IO06_GPIO1_IO6 0x00000156 /* D1 */
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MX8MN_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x00000156 /* D2 */
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MX8MN_IOMUXC_SAI3_RXFS_GPIO4_IO28 0x00000156 /* D3 */
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MX8MN_IOMUXC_UART2_RXD_GPIO5_IO24 0x00000156 /* D4 */
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MX8MN_IOMUXC_SAI3_MCLK_GPIO5_IO2 0x00000156 /* D5 */
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MX8MN_IOMUXC_GPIO1_IO12_GPIO1_IO12 0x00000156 /* D6 */
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MX8MN_IOMUXC_UART2_TXD_GPIO5_IO25 0x00000156 /* D7 */
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MX8MN_IOMUXC_UART1_TXD_GPIO5_IO23 0x00000156 /* E */
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MX8MN_IOMUXC_GPIO1_IO07_GPIO1_IO7 0x00000156 /* RS */
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MX8MN_IOMUXC_SAI2_MCLK_GPIO4_IO27 0x00000156 /* R/W */
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>;
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};
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pinctrl_rotary: rotarygrp {
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fsl,pins = <
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MX8MN_IOMUXC_GPIO1_IO05_GPIO1_IO5 0x00000156 /* A */
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MX8MN_IOMUXC_SAI5_RXD0_GPIO3_IO21 0x00000156 /* B */
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>;
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};
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/* Override Card Detect function GPIO value (GPIO1_IO10) from SOM: */
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pinctrl_usdhc2_gpio: usdhc2gpiogrp {
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fsl,pins = <
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MX8MN_IOMUXC_GPIO1_IO13_GPIO1_IO13 0x41
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>;
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};
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};
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