// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2020 Rockchip Electronics Co., Ltd
* Copyright (c) 2024 Radxa Limited
* Copyright (c) 2024 Yao Zi <ziyao@disroot.org>
*/
/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/pwm/pwm.h>
#include "rk3528.dtsi"
/ {
model = "Radxa E20C";
compatible = "radxa,e20c", "rockchip,rk3528";
aliases {
ethernet0 = &gmac1;
i2c1 = &i2c1;
mmc0 = &sdhci;
mmc1 = &sdmmc;
serial0 = &uart0;
};
chosen {
stdout-path = "serial0:1500000n8";
};
adc-keys {
compatible = "adc-keys";
io-channels = <&saradc 0>;
io-channel-names = "buttons";
keyup-threshold-microvolt = <1800000>;
poll-interval = <100>;
button-maskrom {
label = "MASKROM";
linux,code = <KEY_SETUP>;
press-threshold-microvolt = <0>;
};
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&user_key>;
button-user {
gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_LOW>;
label = "USER";
linux,code = <BTN_1>;
wakeup-source;
};
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&lan_led_g>, <&sys_led_g>, <&wan_led_g>;
led-lan {
color = <LED_COLOR_ID_GREEN>;
default-state = "off";
function = LED_FUNCTION_LAN;
gpios = <&gpio4 RK_PB5 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "netdev";
};
led-sys {
color = <LED_COLOR_ID_GREEN>;
default-state = "on";
function = LED_FUNCTION_HEARTBEAT;
gpios = <&gpio4 RK_PC1 GPIO_ACTIVE_LOW>;
linux,default-trigger = "heartbeat";
};
led-wan {
color = <LED_COLOR_ID_GREEN>;
default-state = "off";
function = LED_FUNCTION_WAN;
gpios = <&gpio4 RK_PC0 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "netdev";
};
};
vdd_0v9: regulator-0v9-vdd {
compatible = "regulator-fixed";
regulator-name = "vdd_0v9";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
vin-supply = <&vcc5v0_sys>;
};
vcc_ddr: regulator-1v1-vcc-ddr {
compatible = "regulator-fixed";
regulator-name = "vcc_ddr";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
vin-supply = <&vcc5v0_sys>;
};
vcc_1v8: regulator-1v8-vcc {
compatible = "regulator-fixed";
regulator-name = "vcc_1v8";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vcc_3v3>;
};
vcc_3v3: regulator-3v3-vcc {
compatible = "regulator-fixed";
regulator-name = "vcc_3v3";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vcc5v0_sys>;
};
vcc5v0_sys: regulator-5v0-vcc-sys {
compatible = "regulator-fixed";
regulator-name = "vcc5v0_sys";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
};
vccio_sd: regulator-vccio-sd {
compatible = "regulator-gpio";
gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_vol_ctrl_h>;
regulator-name = "vccio_sd";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
states = <1800000 0x0>, <3300000 0x1>;
vin-supply = <&vcc5v0_sys>;
};
vdd_arm: regulator-vdd-arm {
compatible = "pwm-regulator";
pwms = <&pwm1 0 5000 PWM_POLARITY_INVERTED>;
pwm-supply = <&vcc5v0_sys>;
regulator-name = "vdd_arm";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <746000>;
regulator-max-microvolt = <1201000>;
regulator-settling-time-up-us = <250>;
};
vdd_logic: regulator-vdd-logic {
compatible = "pwm-regulator";
pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
pwm-supply = <&vcc5v0_sys>;
regulator-name = "vdd_logic";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <705000>;
regulator-max-microvolt = <1006000>;
regulator-settling-time-up-us = <250>;
};
};
&cpu0 {
cpu-supply = <&vdd_arm>;
};
&cpu1 {
cpu-supply = <&vdd_arm>;
};
&cpu2 {
cpu-supply = <&vdd_arm>;
};
&cpu3 {
cpu-supply = <&vdd_arm>;
};
&gmac1 {
clock_in_out = "output";
phy-handle = <&rgmii_phy>;
phy-mode = "rgmii-id";
phy-supply = <&vcc_3v3>;
pinctrl-names = "default";
pinctrl-0 = <&rgmii_miim>, <&rgmii_tx_bus2>, <&rgmii_rx_bus2>,
<&rgmii_rgmii_clk>, <&rgmii_rgmii_bus>;
status = "okay";
};
&gpu {
mali-supply = <&vdd_logic>;
status = "okay";
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1m0_xfer>;
status = "okay";
eeprom@50 {
compatible = "belling,bl24c16a", "atmel,24c16";
reg = <0x50>;
pagesize = <16>;
read-only;
vcc-supply = <&vcc_3v3>;
};
};
&mdio1 {
rgmii_phy: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0x1>;
pinctrl-names = "default";
pinctrl-0 = <&gmac1_rstn_l>;
reset-assert-us = <20000>;
reset-deassert-us = <100000>;
reset-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>;
};
};
&pinctrl {
ethernet {
gmac1_rstn_l: gmac1-rstn-l {
rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
gpio-keys {
user_key: user-key {
rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
leds {
lan_led_g: lan-led-g {
rockchip,pins = <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
};
sys_led_g: sys-led-g {
rockchip,pins = <4 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
};
wan_led_g: wan-led-g {
rockchip,pins = <4 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
sdmmc {
sdmmc_vol_ctrl_h: sdmmc-vol-ctrl-h {
rockchip,pins = <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
};
&pwm1 {
pinctrl-names = "default";
pinctrl-0 = <&pwm1m0_pins>;
status = "okay";
};
&pwm2 {
pinctrl-names = "default";
pinctrl-0 = <&pwm2m0_pins>;
status = "okay";
};
&saradc {
vref-supply = <&vcc_1v8>;
status = "okay";
};
&sdhci {
bus-width = <8>;
cap-mmc-highspeed;
mmc-hs200-1_8v;
no-sd;
no-sdio;
non-removable;
vmmc-supply = <&vcc_3v3>;
vqmmc-supply = <&vcc_1v8>;
status = "okay";
};
&sdmmc {
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
disable-wp;
sd-uhs-sdr104;
vmmc-supply = <&vcc_3v3>;
vqmmc-supply = <&vccio_sd>;
status = "okay";
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0m0_xfer>;
status = "okay";
};
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