linux_kernel/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2017 Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
 * Copyright (c) 2017 BayLibre, SAS
 * Author: Neil Armstrong <narmstrong@baylibre.com>
 */

/dts-v1/;

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

#include "meson-gxm.dtsi"

/ {
	compatible = "khadas,vim2", "amlogic,s912", "amlogic,meson-gxm";
	model = "Khadas VIM2";

	aliases {
		serial0 = &uart_AO;
		serial1 = &uart_A;
		serial2 = &uart_AO_B;
	};

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

	memory@0 {
		device_type = "memory";
		reg = <0x0 0x0 0x0 0x80000000>;
	};

	adc-keys {
		compatible = "adc-keys";
		io-channels = <&saradc 0>;
		io-channel-names = "buttons";
		keyup-threshold-microvolt = <1710000>;

		button-function {
			label = "Function";
			linux,code = <KEY_FN>;
			press-threshold-microvolt = <10000>;
		};
	};

	emmc_pwrseq: emmc-pwrseq {
		compatible = "mmc-pwrseq-emmc";
		reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
	};

	gpio_fan: gpio-fan {
		compatible = "gpio-fan";
		gpios = <&gpio GPIODV_14 GPIO_ACTIVE_HIGH
			 &gpio GPIODV_15 GPIO_ACTIVE_HIGH>;
		/* Dummy RPM values since fan is optional */
		gpio-fan,speed-map = <0 0
				      1 1
				      2 2
				      3 3>;
		#cooling-cells = <2>;
	};

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

		button@0 {
			label = "power";
			linux,code = <KEY_POWER>;
			gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
		};
	};

	hdmi-connector {
		compatible = "hdmi-connector";
		type = "a";

		port {
			hdmi_connector_in: endpoint {
				remote-endpoint = <&hdmi_tx_tmds_out>;
			};
		};
	};

	pwmleds {
		compatible = "pwm-leds";

		power {
			label = "vim:red:power";
			pwms = <&pwm_AO_ab 1 7812500 0>;
			max-brightness = <255>;
			linux,default-trigger = "default-on";
		};
	};

	sdio_pwrseq: sdio-pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
		clocks = <&wifi32k>;
		clock-names = "ext_clock";
	};

	thermal-zones {
		cpu-thermal {
			polling-delay-passive = <250>; /* milliseconds */
			polling-delay = <1000>; /* milliseconds */

			thermal-sensors = <&scpi_sensors 0>;

			trips {
				cpu_alert0: cpu-alert0 {
					temperature = <70000>; /* millicelsius */
					hysteresis = <2000>; /* millicelsius */
					type = "active";
				};

				cpu_alert1: cpu-alert1 {
					temperature = <80000>; /* millicelsius */
					hysteresis = <2000>; /* millicelsius */
					type = "passive";
				};
			};

			cooling-maps {
				map0 {
					trip = <&cpu_alert0>;
					cooling-device = <&gpio_fan THERMAL_NO_LIMIT 1>;
				};

				map1 {
					trip = <&cpu_alert1>;
					cooling-device = <&gpio_fan 2 THERMAL_NO_LIMIT>;
				};

				map2 {
					trip = <&cpu_alert1>;
					cooling-device =
						<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
				};

				map3 {
					trip = <&cpu_alert1>;
					cooling-device =
						<&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
				};
			};
		};
	};

	hdmi_5v: regulator-hdmi-5v {
		compatible = "regulator-fixed";

		regulator-name = "HDMI_5V";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;

		gpio = <&gpio GPIOH_3 GPIO_ACTIVE_HIGH>;
		enable-active-high;
		regulator-always-on;
	};

	vcc_3v3: regulator-vcc_3v3 {
		compatible = "regulator-fixed";
		regulator-name = "VCC_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};

	vddio_ao18: regulator-vddio_ao18 {
		compatible = "regulator-fixed";
		regulator-name = "VDDIO_AO18";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	vddio_boot: regulator-vddio_boot {
		compatible = "regulator-fixed";
		regulator-name = "VDDIO_BOOT";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	vddao_3v3: regulator-vddao_3v3 {
		compatible = "regulator-fixed";
		regulator-name = "VDDAO_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};

	wifi32k: wifi32k {
		compatible = "pwm-clock";
		#clock-cells = <0>;
		clock-frequency = <32768>;
		pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
	};
};

&cec_AO {
	status = "okay";
	pinctrl-0 = <&ao_cec_pins>;
	pinctrl-names = "default";
	hdmi-phandle = <&hdmi_tx>;
};

&cpu0 {
	#cooling-cells = <2>;
};

&cpu1 {
	#cooling-cells = <2>;
};

&cpu2 {
	#cooling-cells = <2>;
};

&cpu3 {
	#cooling-cells = <2>;
};

&cpu4 {
	#cooling-cells = <2>;
};

&cpu5 {
	#cooling-cells = <2>;
};

&cpu6 {
	#cooling-cells = <2>;
};

&cpu7 {
	#cooling-cells = <2>;
};

&ethmac {
	pinctrl-0 = <&eth_pins>;
	pinctrl-names = "default";

	/* Select external PHY by default */
	phy-handle = <&external_phy>;

	amlogic,tx-delay-ns = <2>;

	/* External PHY reset is shared with internal PHY Led signals */
	snps,reset-gpio = <&gpio GPIOZ_14 0>;
	snps,reset-delays-us = <0 10000 1000000>;
	snps,reset-active-low;

	/* External PHY is in RGMII */
	phy-mode = "rgmii";

	status = "okay";
};

&external_mdio {
	external_phy: ethernet-phy@0 {
		/* Realtek RTL8211F (0x001cc916) */
		reg = <0>;
		interrupt-parent = <&gpio_intc>;
		/* MAC_INTR on GPIOZ_15 */
		interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
	};
};

&hdmi_tx {
	status = "okay";
	pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
	pinctrl-names = "default";
};

&hdmi_tx_tmds_port {
	hdmi_tx_tmds_out: endpoint {
		remote-endpoint = <&hdmi_connector_in>;
	};
};

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

&i2c_B {
	status = "okay";
	pinctrl-0 = <&i2c_b_pins>;
	pinctrl-names = "default";

	rtc: rtc@51 {
		/* has to be enabled manually when a battery is connected: */
		status = "disabled";
		compatible = "haoyu,hym8563";
		reg = <0x51>;
		#clock-cells = <0>;
		clock-frequency = <32768>;
		clock-output-names = "xin32k";
	};
};

&ir {
	status = "okay";
	pinctrl-0 = <&remote_input_ao_pins>;
	pinctrl-names = "default";
	linux,rc-map-name = "rc-geekbox";
};

&pwm_AO_ab {
	status = "okay";
	pinctrl-0 = <&pwm_ao_a_3_pins>, <&pwm_ao_b_pins>;
	pinctrl-names = "default";
	clocks = <&clkc CLKID_FCLK_DIV4>;
	clock-names = "clkin0";
};

&pwm_ef {
	status = "okay";
	pinctrl-0 = <&pwm_e_pins>, <&pwm_f_clk_pins>;
	pinctrl-names = "default";
	clocks = <&clkc CLKID_FCLK_DIV4>;
	clock-names = "clkin0";
};

&sd_emmc_a {
	status = "okay";
	pinctrl-0 = <&sdio_pins>;
	pinctrl-names = "default";
	#address-cells = <1>;
	#size-cells = <0>;

	bus-width = <4>;
	max-frequency = <100000000>;

	non-removable;
	disable-wp;

	mmc-pwrseq = <&sdio_pwrseq>;

	vmmc-supply = <&vddao_3v3>;
	vqmmc-supply = <&vddio_boot>;

	brcmf: wifi@1 {
		reg = <1>;
		compatible = "brcm,bcm4329-fmac";
	};
};

/* SD card */
&sd_emmc_b {
	status = "okay";
	pinctrl-0 = <&sdcard_pins>;
	pinctrl-names = "default";

	bus-width = <4>;
	cap-sd-highspeed;
	max-frequency = <100000000>;
	disable-wp;

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

	vmmc-supply = <&vddao_3v3>;
	vqmmc-supply = <&vddio_boot>;
};

/* eMMC */
&sd_emmc_c {
	status = "okay";
	pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>;
	pinctrl-names = "default";

	bus-width = <8>;
	cap-sd-highspeed;
	cap-mmc-highspeed;
	max-frequency = <200000000>;
	non-removable;
	disable-wp;
	mmc-ddr-1_8v;
	mmc-hs200-1_8v;
	mmc-hs400-1_8v;

	mmc-pwrseq = <&emmc_pwrseq>;
	vmmc-supply = <&vcc_3v3>;
	vqmmc-supply = <&vddio_boot>;
};

/*
 * EMMC_DS pin is shared between SPI NOR CS and eMMC Data Strobe
 * Remove emmc_ds_pins from sd_emmc_c pinctrl-0 then spifc can be enabled
 */
&spifc {
	status = "disabled";
	pinctrl-0 = <&nor_pins>;
	pinctrl-names = "default";

	w25q32: spi-flash@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "winbond,w25q16", "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <3000000>;
	};
};

/* This one is connected to the Bluetooth module */
&uart_A {
	status = "okay";
	pinctrl-0 = <&uart_a_pins>;
	pinctrl-names = "default";
};

/* This is brought out on the Linux_RX (18) and Linux_TX (19) pins: */
&uart_AO {
	status = "okay";
	pinctrl-0 = <&uart_ao_a_pins>;
	pinctrl-names = "default";
};

/* This is brought out on the UART_RX_AO_B (15) and UART_TX_AO_B (16) pins: */
&uart_AO_B {
	status = "okay";
	pinctrl-0 = <&uart_ao_b_pins>;
	pinctrl-names = "default";
};

&saradc {
	status = "okay";
	vref-supply = <&vddio_ao18>;
};

&usb0 {
	status = "okay";
};