1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Copyright (c) 2020 Rockchip Electronics Co., Ltd 4 * Copyright (c) 2024 Radxa Limited 5 * Copyright (c) 2024 Yao Zi <ziyao@disroot.org> 6 */ 7 8/dts-v1/; 9 10#include <dt-bindings/input/input.h> 11#include <dt-bindings/leds/common.h> 12#include <dt-bindings/pwm/pwm.h> 13#include "rk3528.dtsi" 14 15/ { 16 model = "Radxa E20C"; 17 compatible = "radxa,e20c", "rockchip,rk3528"; 18 19 aliases { 20 ethernet0 = &gmac1; 21 i2c1 = &i2c1; 22 mmc0 = &sdhci; 23 mmc1 = &sdmmc; 24 serial0 = &uart0; 25 }; 26 27 chosen { 28 stdout-path = "serial0:1500000n8"; 29 }; 30 31 adc-keys { 32 compatible = "adc-keys"; 33 io-channels = <&saradc 0>; 34 io-channel-names = "buttons"; 35 keyup-threshold-microvolt = <1800000>; 36 poll-interval = <100>; 37 38 button-maskrom { 39 label = "MASKROM"; 40 linux,code = <KEY_SETUP>; 41 press-threshold-microvolt = <0>; 42 }; 43 }; 44 45 gpio-keys { 46 compatible = "gpio-keys"; 47 pinctrl-names = "default"; 48 pinctrl-0 = <&user_key>; 49 50 button-user { 51 gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_LOW>; 52 label = "USER"; 53 linux,code = <BTN_1>; 54 wakeup-source; 55 }; 56 }; 57 58 leds { 59 compatible = "gpio-leds"; 60 pinctrl-names = "default"; 61 pinctrl-0 = <&lan_led_g>, <&sys_led_g>, <&wan_led_g>; 62 63 led-lan { 64 color = <LED_COLOR_ID_GREEN>; 65 default-state = "off"; 66 function = LED_FUNCTION_LAN; 67 gpios = <&gpio4 RK_PB5 GPIO_ACTIVE_HIGH>; 68 linux,default-trigger = "netdev"; 69 }; 70 71 led-sys { 72 color = <LED_COLOR_ID_GREEN>; 73 default-state = "on"; 74 function = LED_FUNCTION_HEARTBEAT; 75 gpios = <&gpio4 RK_PC1 GPIO_ACTIVE_LOW>; 76 linux,default-trigger = "heartbeat"; 77 }; 78 79 led-wan { 80 color = <LED_COLOR_ID_GREEN>; 81 default-state = "off"; 82 function = LED_FUNCTION_WAN; 83 gpios = <&gpio4 RK_PC0 GPIO_ACTIVE_HIGH>; 84 linux,default-trigger = "netdev"; 85 }; 86 }; 87 88 vdd_0v9: regulator-0v9-vdd { 89 compatible = "regulator-fixed"; 90 regulator-name = "vdd_0v9"; 91 regulator-always-on; 92 regulator-boot-on; 93 regulator-min-microvolt = <900000>; 94 regulator-max-microvolt = <900000>; 95 vin-supply = <&vcc5v0_sys>; 96 }; 97 98 vcc_ddr: regulator-1v1-vcc-ddr { 99 compatible = "regulator-fixed"; 100 regulator-name = "vcc_ddr"; 101 regulator-always-on; 102 regulator-boot-on; 103 regulator-min-microvolt = <1100000>; 104 regulator-max-microvolt = <1100000>; 105 vin-supply = <&vcc5v0_sys>; 106 }; 107 108 vcc_1v8: regulator-1v8-vcc { 109 compatible = "regulator-fixed"; 110 regulator-name = "vcc_1v8"; 111 regulator-always-on; 112 regulator-boot-on; 113 regulator-min-microvolt = <1800000>; 114 regulator-max-microvolt = <1800000>; 115 vin-supply = <&vcc_3v3>; 116 }; 117 118 vcc_3v3: regulator-3v3-vcc { 119 compatible = "regulator-fixed"; 120 regulator-name = "vcc_3v3"; 121 regulator-always-on; 122 regulator-boot-on; 123 regulator-min-microvolt = <3300000>; 124 regulator-max-microvolt = <3300000>; 125 vin-supply = <&vcc5v0_sys>; 126 }; 127 128 vcc5v0_sys: regulator-5v0-vcc-sys { 129 compatible = "regulator-fixed"; 130 regulator-name = "vcc5v0_sys"; 131 regulator-always-on; 132 regulator-boot-on; 133 regulator-min-microvolt = <5000000>; 134 regulator-max-microvolt = <5000000>; 135 }; 136 137 vccio_sd: regulator-vccio-sd { 138 compatible = "regulator-gpio"; 139 gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>; 140 pinctrl-names = "default"; 141 pinctrl-0 = <&sdmmc_vol_ctrl_h>; 142 regulator-name = "vccio_sd"; 143 regulator-min-microvolt = <1800000>; 144 regulator-max-microvolt = <3300000>; 145 states = <1800000 0x0>, <3300000 0x1>; 146 vin-supply = <&vcc5v0_sys>; 147 }; 148 149 vdd_arm: regulator-vdd-arm { 150 compatible = "pwm-regulator"; 151 pwms = <&pwm1 0 5000 PWM_POLARITY_INVERTED>; 152 pwm-supply = <&vcc5v0_sys>; 153 regulator-name = "vdd_arm"; 154 regulator-always-on; 155 regulator-boot-on; 156 regulator-min-microvolt = <746000>; 157 regulator-max-microvolt = <1201000>; 158 regulator-settling-time-up-us = <250>; 159 }; 160 161 vdd_logic: regulator-vdd-logic { 162 compatible = "pwm-regulator"; 163 pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>; 164 pwm-supply = <&vcc5v0_sys>; 165 regulator-name = "vdd_logic"; 166 regulator-always-on; 167 regulator-boot-on; 168 regulator-min-microvolt = <705000>; 169 regulator-max-microvolt = <1006000>; 170 regulator-settling-time-up-us = <250>; 171 }; 172}; 173 174&cpu0 { 175 cpu-supply = <&vdd_arm>; 176}; 177 178&cpu1 { 179 cpu-supply = <&vdd_arm>; 180}; 181 182&cpu2 { 183 cpu-supply = <&vdd_arm>; 184}; 185 186&cpu3 { 187 cpu-supply = <&vdd_arm>; 188}; 189 190&gmac1 { 191 clock_in_out = "output"; 192 phy-handle = <&rgmii_phy>; 193 phy-mode = "rgmii-id"; 194 phy-supply = <&vcc_3v3>; 195 pinctrl-names = "default"; 196 pinctrl-0 = <&rgmii_miim>, <&rgmii_tx_bus2>, <&rgmii_rx_bus2>, 197 <&rgmii_rgmii_clk>, <&rgmii_rgmii_bus>; 198 status = "okay"; 199}; 200 201&gpu { 202 mali-supply = <&vdd_logic>; 203 status = "okay"; 204}; 205 206&i2c1 { 207 pinctrl-names = "default"; 208 pinctrl-0 = <&i2c1m0_xfer>; 209 status = "okay"; 210 211 eeprom@50 { 212 compatible = "belling,bl24c16a", "atmel,24c16"; 213 reg = <0x50>; 214 pagesize = <16>; 215 read-only; 216 vcc-supply = <&vcc_3v3>; 217 }; 218}; 219 220&mdio1 { 221 rgmii_phy: ethernet-phy@1 { 222 compatible = "ethernet-phy-ieee802.3-c22"; 223 reg = <0x1>; 224 pinctrl-names = "default"; 225 pinctrl-0 = <&gmac1_rstn_l>; 226 reset-assert-us = <20000>; 227 reset-deassert-us = <100000>; 228 reset-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>; 229 }; 230}; 231 232&pinctrl { 233 ethernet { 234 gmac1_rstn_l: gmac1-rstn-l { 235 rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>; 236 }; 237 }; 238 239 gpio-keys { 240 user_key: user-key { 241 rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>; 242 }; 243 }; 244 245 leds { 246 lan_led_g: lan-led-g { 247 rockchip,pins = <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>; 248 }; 249 250 sys_led_g: sys-led-g { 251 rockchip,pins = <4 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>; 252 }; 253 254 wan_led_g: wan-led-g { 255 rockchip,pins = <4 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>; 256 }; 257 }; 258 259 sdmmc { 260 sdmmc_vol_ctrl_h: sdmmc-vol-ctrl-h { 261 rockchip,pins = <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>; 262 }; 263 }; 264}; 265 266&pwm1 { 267 pinctrl-names = "default"; 268 pinctrl-0 = <&pwm1m0_pins>; 269 status = "okay"; 270}; 271 272&pwm2 { 273 pinctrl-names = "default"; 274 pinctrl-0 = <&pwm2m0_pins>; 275 status = "okay"; 276}; 277 278&saradc { 279 vref-supply = <&vcc_1v8>; 280 status = "okay"; 281}; 282 283&sdhci { 284 bus-width = <8>; 285 cap-mmc-highspeed; 286 mmc-hs200-1_8v; 287 no-sd; 288 no-sdio; 289 non-removable; 290 vmmc-supply = <&vcc_3v3>; 291 vqmmc-supply = <&vcc_1v8>; 292 status = "okay"; 293}; 294 295&sdmmc { 296 bus-width = <4>; 297 cap-mmc-highspeed; 298 cap-sd-highspeed; 299 disable-wp; 300 sd-uhs-sdr104; 301 vmmc-supply = <&vcc_3v3>; 302 vqmmc-supply = <&vccio_sd>; 303 status = "okay"; 304}; 305 306&uart0 { 307 pinctrl-names = "default"; 308 pinctrl-0 = <&uart0m0_xfer>; 309 status = "okay"; 310}; 311