// 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";
};

&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;
	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";
};