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