linux/arch/arm/boot/dts/meson8b-ec100.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2018 Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
 */

/dts-v1/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

#include "meson8b.dtsi"

/ {
	model = "Endless Computers Endless Mini";
	compatible = "endless,ec100", "amlogic,meson8b";

	aliases {
		serial0 = &uart_AO;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	memory {
		reg = <0x40000000 0x40000000>;
	};

	gpio-keys {
		compatible = "gpio-keys-polled";
		#address-cells = <1>;
		#size-cells = <0>;
		poll-interval = <100>;

		pal-switch {
			label = "pal";
			linux,input-type = <EV_SW>;
			linux,code = <KEY_SWITCHVIDEOMODE>;
			gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
		};

		ntsc-switch {
			label = "ntsc";
			linux,input-type = <EV_SW>;
			linux,code = <KEY_SWITCHVIDEOMODE>;
			gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
		};

		power-button {
			label = "power";
			linux,code = <KEY_POWER>;
			gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
		};
	};

	gpio-poweroff {
		compatible = "gpio-poweroff";
		/*
		 * shutdown is managed by the EC (embedded micro-controller)
		 * which is configured through GPIOAO_2 (poweroff GPIO) and
		 * GPIOAO_7 (power LED, which has to go LOW as well).
		 */
		gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
		timeout-ms = <20000>;
	};

	leds {
		compatible = "gpio-leds";

		power {
			label = "ec100:red:power";
			/*
			 * Needs to go LOW (together with the poweroff GPIO)
			 * during shutdown to allow the EC (embedded
			 * micro-controller) to shutdown the system. Setting
			 * the output to LOW signals the EC to start a
			 * "breathing"/pulsing effect until the power is fully
			 * turned off.
			 */
			gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
			default-state = "on";
		};
	};

	usb_vbus: regulator-usb-vbus {
		compatible = "regulator-fixed";

		regulator-name = "USB_VBUS";

		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;

		gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	vcc_5v: regulator-vcc5v {
		compatible = "regulator-fixed";

		regulator-name = "VCC5V";

		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;

		gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;

		regulator-boot-on;
		regulator-always-on;
	};

	vcck: regulator-vcck {
		compatible = "pwm-regulator";

		regulator-name = "VCCK";
		regulator-min-microvolt = <860000>;
		regulator-max-microvolt = <1140000>;

		pwms = <&pwm_cd 0 1148 0>;
		pwm-dutycycle-range = <100 0>;

		regulator-boot-on;
		regulator-always-on;
	};

	vcc_1v8: regulator-vcc1v8 {
		compatible = "regulator-fixed";

		regulator-name = "VCC1V8";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	vcc_3v3: regulator-vcc3v3 {
		compatible = "regulator-fixed";

		regulator-name = "VCC3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};
};

&cpu0 {
	cpu-supply = <&vcck>;
};

&ethmac {
	status = "okay";

	pinctrl-0 = <&eth_rmii_pins>;
	pinctrl-names = "default";

	phy-handle = <&eth_phy0>;
	phy-mode = "rmii";

	snps,reset-gpio = <&gpio GPIOH_4 0>;
	snps,reset-delays-us = <0 10000 1000000>;
	snps,reset-active-low;

	mdio {
		compatible = "snps,dwmac-mdio";
		#address-cells = <1>;
		#size-cells = <0>;

		eth_phy0: ethernet-phy@0 {
			/* IC Plus IP101A/G (0x02430c54) */
			reg = <0>;
		};
	};
};

&i2c_A {
	status = "okay";
	pinctrl-0 = <&i2c_a_pins>;
	pinctrl-names = "default";

	rt5640: codec@1c {
		compatible = "realtek,rt5640";
		reg = <0x1c>;
		interrupt-parent = <&gpio_intc>;
		interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
		realtek,in1-differential;
	};
};

&saradc {
	status = "okay";
	vref-supply = <&vcc_1v8>;
};

&sdio {
	status = "okay";

	pinctrl-0 = <&sd_b_pins>;
	pinctrl-names = "default";

	/* SD card */
	sd_card_slot: slot@1 {
		compatible = "mmc-slot";
		reg = <1>;
		status = "okay";

		bus-width = <4>;
		no-sdio;
		cap-mmc-highspeed;
		cap-sd-highspeed;
		disable-wp;

		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
		cd-inverted;

		vmmc-supply = <&vcc_3v3>;
	};
};

&pwm_cd {
	status = "okay";
	pinctrl-0 = <&pwm_c1_pins>;
	pinctrl-names = "default";
	clocks = <&clkc CLKID_XTAL>;
	clock-names = "clkin0";
};

/* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
&uart_AO {
	status = "okay";
	pinctrl-0 = <&uart_ao_a_pins>;
	pinctrl-names = "default";
};

/*
 * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
 * combo chip. This is only available on the variant with 2GB RAM.
 */
&uart_B {
	status = "okay";
	pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
	pinctrl-names = "default";
	uart-has-rtscts;
};

&usb1 {
	status = "okay";
	vbus-supply = <&usb_vbus>;
};

&usb1_phy {
	status = "okay";
};