Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: (GPL-2.0+ OR MIT) |
| 2 | /* |
| 3 | * Copyright 2023 DimOnOff |
| 4 | */ |
| 5 | |
| 6 | /dts-v1/; |
| 7 | |
| 8 | #include <dt-bindings/usb/pd.h> |
| 9 | #include "imx8mn-var-som.dtsi" |
| 10 | |
| 11 | / { |
| 12 | model = "RVE gateway"; |
Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 13 | compatible = "rve,gateway", "variscite,var-som-mx8mn", "fsl,imx8mn"; |
Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 14 | |
| 15 | crystal_duart_24m: crystal-duart-24m { |
| 16 | compatible = "fixed-clock"; |
| 17 | #clock-cells = <0>; |
| 18 | clock-frequency = <24000000>; |
| 19 | }; |
| 20 | |
| 21 | gpio-keys { |
| 22 | compatible = "gpio-keys"; |
| 23 | pinctrl-names = "default"; |
| 24 | pinctrl-0 = <&pinctrl_gpio_keys>; |
| 25 | |
| 26 | key-enter { |
| 27 | label = "enter"; |
| 28 | gpios = <&gpio1 1 GPIO_ACTIVE_LOW>; |
| 29 | linux,code = <KEY_ENTER>; |
| 30 | }; |
| 31 | |
| 32 | key-exit { |
| 33 | label = "exit"; |
| 34 | gpios = <&gpio3 23 GPIO_ACTIVE_LOW>; |
| 35 | linux,code = <KEY_ESC>; |
| 36 | }; |
| 37 | }; |
| 38 | |
| 39 | lcd { |
| 40 | compatible = "hit,hd44780"; |
| 41 | display-height-chars = <2>; |
| 42 | display-width-chars = <20>; |
| 43 | pinctrl-names = "default"; |
| 44 | pinctrl-0 = <&pinctrl_lcd>; |
| 45 | data-gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>, |
| 46 | <&gpio1 6 GPIO_ACTIVE_HIGH>, |
| 47 | <&gpio1 14 GPIO_ACTIVE_HIGH>, |
| 48 | <&gpio4 28 GPIO_ACTIVE_HIGH>, |
| 49 | <&gpio5 24 GPIO_ACTIVE_HIGH>, |
| 50 | <&gpio5 2 GPIO_ACTIVE_HIGH>, |
| 51 | <&gpio1 12 GPIO_ACTIVE_HIGH>, |
| 52 | <&gpio5 25 GPIO_ACTIVE_HIGH>; |
| 53 | enable-gpios = <&gpio5 23 GPIO_ACTIVE_HIGH>; |
| 54 | rs-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>; |
| 55 | rw-gpios = <&gpio4 27 GPIO_ACTIVE_HIGH>; |
| 56 | }; |
| 57 | |
| 58 | reg_3p3v: regulator-3p3v { |
| 59 | compatible = "regulator-fixed"; |
| 60 | regulator-name = "3P3V"; |
| 61 | regulator-min-microvolt = <3300000>; |
| 62 | regulator-max-microvolt = <3300000>; |
| 63 | regulator-always-on; |
| 64 | }; |
| 65 | |
| 66 | /* Bourns PEC12R rotary encoder, 24 steps. */ |
| 67 | rotary: rotary-encoder { |
| 68 | compatible = "rotary-encoder"; |
| 69 | pinctrl-names = "default"; |
| 70 | pinctrl-0 = <&pinctrl_rotary>; |
| 71 | gpios = <&gpio1 5 GPIO_ACTIVE_LOW>, /* A */ |
| 72 | <&gpio3 21 GPIO_ACTIVE_LOW>; /* B */ |
| 73 | linux,axis = <0>; /* REL_X */ |
| 74 | rotary-encoder,encoding = "gray"; |
| 75 | rotary-encoder,relative-axis; |
| 76 | }; |
| 77 | }; |
| 78 | |
| 79 | &ecspi1 { |
| 80 | cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>; |
| 81 | |
| 82 | duart1: serial@0 { |
| 83 | compatible = "nxp,sc16is752"; |
| 84 | reg = <0>; |
| 85 | spi-rx-bus-width = <1>; |
| 86 | spi-tx-bus-width = <1>; |
| 87 | spi-max-frequency = <4000000>; |
| 88 | clocks = <&crystal_duart_24m>; |
| 89 | interrupt-parent = <&gpio3>; |
| 90 | interrupts = <22 IRQ_TYPE_EDGE_FALLING>; |
| 91 | gpio-controller; |
| 92 | #gpio-cells = <2>; |
| 93 | gpio-line-names = "RADIO0", "RADIO1", "RADIO2", "RADIO3", |
| 94 | "RADIO4", "RADIO_RESET", "TP12", "TP11"; |
| 95 | linux,rs485-enabled-at-boot-time; |
| 96 | rs485-rts-active-low; |
| 97 | }; |
| 98 | |
| 99 | /delete-node/ touchscreen@0; |
| 100 | }; |
| 101 | |
| 102 | &ecspi2 { |
| 103 | pinctrl-names = "default"; |
| 104 | pinctrl-0 = <&pinctrl_ecspi2>; |
| 105 | cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>; |
| 106 | /delete-property/ dmas; |
| 107 | /delete-property/ dma-names; |
| 108 | status = "okay"; |
| 109 | |
| 110 | duart2: serial@0 { |
| 111 | compatible = "nxp,sc16is752"; |
| 112 | reg = <0>; |
| 113 | spi-rx-bus-width = <1>; |
| 114 | spi-tx-bus-width = <1>; |
| 115 | spi-max-frequency = <4000000>; |
| 116 | clocks = <&crystal_duart_24m>; |
| 117 | interrupt-parent = <&gpio3>; |
| 118 | interrupts = <20 IRQ_TYPE_EDGE_FALLING>; |
| 119 | gpio-controller; |
| 120 | #gpio-cells = <2>; |
| 121 | gpio-line-names = "LED_B_USER", "LED_R_USER", "LED_G_USER", |
| 122 | "GPIO_EXT3", "GPIO_EXT2", "GPIO_EXT1", |
| 123 | "GPIO_EXT0", "TP13"; |
| 124 | linux,rs485-enabled-at-boot-time; |
| 125 | rs485-rts-active-low; |
| 126 | }; |
| 127 | }; |
| 128 | |
| 129 | /* Configure PWM pins in GPIO mode: */ |
| 130 | &gpio5 { |
| 131 | gpio-line-names = "", "", "", "PWM3", "PWM2", "PWM1"; |
| 132 | }; |
| 133 | |
| 134 | &gpu { |
| 135 | status = "disabled"; |
| 136 | }; |
| 137 | |
| 138 | &i2c2 { |
| 139 | clock-frequency = <400000>; |
| 140 | pinctrl-names = "default"; |
| 141 | pinctrl-0 = <&pinctrl_i2c2>; |
| 142 | status = "okay"; |
| 143 | |
| 144 | /* Carrier board EEPROM */ |
| 145 | eeprom_cb: eeprom@56 { |
| 146 | compatible = "atmel,24c04"; |
| 147 | reg = <0x56>; |
| 148 | pagesize = <16>; |
| 149 | vcc-supply = <®_3p3v>; |
| 150 | }; |
| 151 | |
| 152 | lm75: sensor@48 { |
| 153 | compatible = "st,stlm75"; |
| 154 | reg = <0x48>; |
| 155 | vs-supply = <®_3p3v>; |
| 156 | }; |
| 157 | |
| 158 | mcp7940: rtc@6f { |
| 159 | compatible = "microchip,mcp7940x"; |
| 160 | reg = <0x6f>; |
| 161 | }; |
| 162 | }; |
| 163 | |
| 164 | &i2c3 { |
| 165 | codec@1a { |
| 166 | status = "disabled"; |
| 167 | }; |
| 168 | }; |
| 169 | |
| 170 | &i2c4 { |
| 171 | clock-frequency = <400000>; |
| 172 | pinctrl-names = "default"; |
| 173 | pinctrl-0 = <&pinctrl_i2c4>; |
| 174 | status = "okay"; |
| 175 | |
| 176 | pcf8574_1: gpio@38 { |
| 177 | compatible = "nxp,pcf8574"; |
| 178 | reg = <0x38>; |
| 179 | gpio-controller; |
| 180 | #gpio-cells = <2>; |
| 181 | gpio-line-names = "LED_B_COMM3", "LED_R_COMM3", "LED_G_COMM3", |
| 182 | "TP14", "TP15", "LED_G_COMM4", "LED_R_COMM4", |
| 183 | "LED_B_COMM4"; |
| 184 | }; |
| 185 | |
| 186 | pcf8574_2: gpio@39 { |
| 187 | compatible = "nxp,pcf8574"; |
| 188 | reg = <0x39>; |
| 189 | gpio-controller; |
| 190 | #gpio-cells = <2>; |
| 191 | gpio-line-names = "LED_B_COMM2", "LED_G_COMM2", "LED_B_COMM1", |
| 192 | "LED_R_COMM2", "LED_R_COMM1", "LED_G_COMM1", |
| 193 | "TP16", "TP17"; |
| 194 | }; |
| 195 | }; |
| 196 | |
| 197 | /* Bluetooth */ |
| 198 | &uart2 { |
| 199 | status = "disabled"; |
| 200 | }; |
| 201 | |
| 202 | &usbotg1 { |
| 203 | dr_mode = "host"; |
| 204 | disable-over-current; |
| 205 | status = "okay"; |
| 206 | }; |
| 207 | |
| 208 | /* SD interface on expansion connector. */ |
| 209 | &usdhc2 { |
| 210 | vmmc-supply = <®_3p3v>; |
| 211 | cd-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>; |
| 212 | }; |
| 213 | |
| 214 | &iomuxc { |
| 215 | pinctrl_ecspi1: ecspi1grp { |
| 216 | fsl,pins = < |
| 217 | MX8MN_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK 0x13 |
| 218 | MX8MN_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI 0x13 |
| 219 | MX8MN_IOMUXC_ECSPI1_MISO_ECSPI1_MISO 0x13 |
| 220 | MX8MN_IOMUXC_ECSPI1_SS0_GPIO5_IO9 0x13 /* SS0 */ |
| 221 | MX8MN_IOMUXC_SAI5_RXD1_GPIO3_IO22 0x13 /* SC16 IRQ */ |
| 222 | >; |
| 223 | }; |
| 224 | |
| 225 | pinctrl_ecspi2: ecspi2grp { |
| 226 | fsl,pins = < |
| 227 | MX8MN_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x13 |
| 228 | MX8MN_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x13 |
| 229 | MX8MN_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x13 |
| 230 | MX8MN_IOMUXC_ECSPI2_SS0_GPIO5_IO13 0x13 /* SS0 */ |
| 231 | MX8MN_IOMUXC_SAI5_RXC_GPIO3_IO20 0x13 /* SC16 IRQ */ |
| 232 | >; |
| 233 | }; |
| 234 | |
| 235 | pinctrl_gpio_keys: gpiokeysgrp { |
| 236 | fsl,pins = < |
| 237 | MX8MN_IOMUXC_GPIO1_IO01_GPIO1_IO1 0xc6 /* Enter */ |
| 238 | MX8MN_IOMUXC_SAI5_RXD2_GPIO3_IO23 0xc6 /* Exit */ |
| 239 | >; |
| 240 | }; |
| 241 | |
| 242 | pinctrl_i2c2: i2c2grp { |
| 243 | fsl,pins = < |
| 244 | MX8MN_IOMUXC_I2C2_SCL_I2C2_SCL 0x400001c3 |
| 245 | MX8MN_IOMUXC_I2C2_SDA_I2C2_SDA 0x400001c3 |
| 246 | >; |
| 247 | }; |
| 248 | |
| 249 | pinctrl_i2c4: i2c4grp { |
| 250 | fsl,pins = < |
| 251 | MX8MN_IOMUXC_I2C4_SCL_I2C4_SCL 0x400001c3 |
| 252 | MX8MN_IOMUXC_I2C4_SDA_I2C4_SDA 0x400001c3 |
| 253 | >; |
| 254 | }; |
| 255 | |
| 256 | pinctrl_lcd: lcdgrp { |
| 257 | fsl,pins = < |
| 258 | MX8MN_IOMUXC_SAI3_TXD_GPIO5_IO1 0x00000156 /* D0 */ |
| 259 | MX8MN_IOMUXC_GPIO1_IO06_GPIO1_IO6 0x00000156 /* D1 */ |
| 260 | MX8MN_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x00000156 /* D2 */ |
| 261 | MX8MN_IOMUXC_SAI3_RXFS_GPIO4_IO28 0x00000156 /* D3 */ |
| 262 | MX8MN_IOMUXC_UART2_RXD_GPIO5_IO24 0x00000156 /* D4 */ |
| 263 | MX8MN_IOMUXC_SAI3_MCLK_GPIO5_IO2 0x00000156 /* D5 */ |
| 264 | MX8MN_IOMUXC_GPIO1_IO12_GPIO1_IO12 0x00000156 /* D6 */ |
| 265 | MX8MN_IOMUXC_UART2_TXD_GPIO5_IO25 0x00000156 /* D7 */ |
| 266 | MX8MN_IOMUXC_UART1_TXD_GPIO5_IO23 0x00000156 /* E */ |
| 267 | MX8MN_IOMUXC_GPIO1_IO07_GPIO1_IO7 0x00000156 /* RS */ |
| 268 | MX8MN_IOMUXC_SAI2_MCLK_GPIO4_IO27 0x00000156 /* R/W */ |
| 269 | >; |
| 270 | }; |
| 271 | |
| 272 | pinctrl_rotary: rotarygrp { |
| 273 | fsl,pins = < |
| 274 | MX8MN_IOMUXC_GPIO1_IO05_GPIO1_IO5 0x00000156 /* A */ |
| 275 | MX8MN_IOMUXC_SAI5_RXD0_GPIO3_IO21 0x00000156 /* B */ |
| 276 | >; |
| 277 | }; |
| 278 | |
| 279 | /* Override Card Detect function GPIO value (GPIO1_IO10) from SOM: */ |
| 280 | pinctrl_usdhc2_gpio: usdhc2gpiogrp { |
| 281 | fsl,pins = < |
| 282 | MX8MN_IOMUXC_GPIO1_IO13_GPIO1_IO13 0x41 |
| 283 | >; |
| 284 | }; |
| 285 | }; |