JustOS/linux-6.13/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Oriole Device Tree
 *
 * Copyright 2021-2023 Google LLC
 * Copyright 2023 Linaro Ltd - <peter.griffin@linaro.org>
 */

/dts-v1/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include "gs101-pinctrl.h"
#include "gs101.dtsi"

/ {
	model = "Oriole";
	compatible = "google,gs101-oriole", "google,gs101";

	aliases {
		serial0 = &serial_0;
	};

	chosen {
		/* Bootloader expects bootargs specified otherwise it crashes */
		bootargs = "";
		stdout-path = &serial_0;
	};

	gpio-keys {
		compatible = "gpio-keys";
		pinctrl-0 = <&key_voldown>, <&key_volup>, <&key_power>;
		pinctrl-names = "default";

		button-vol-down {
			label = "KEY_VOLUMEDOWN";
			linux,code = <KEY_VOLUMEDOWN>;
			gpios = <&gpa7 3 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};

		button-vol-up {
			label = "KEY_VOLUMEUP";
			linux,code = <KEY_VOLUMEUP>;
			gpios = <&gpa8 1 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};

		button-power {
			label = "KEY_POWER";
			linux,code = <KEY_POWER>;
			gpios = <&gpa10 1 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};
	};

	/* TODO: Remove this once PMIC is implemented  */
	reg_placeholder: regulator-0 {
		compatible = "regulator-fixed";
		regulator-name = "placeholder_reg";
	};

	/* TODO: Remove this once S2MPG11 slave PMIC is implemented  */
	ufs_0_fixed_vcc_reg: regulator-1 {
		compatible = "regulator-fixed";
		regulator-name = "ufs-vcc";
		gpio = <&gpp0 1 GPIO_ACTIVE_HIGH>;
		regulator-boot-on;
		enable-active-high;
	};
};

&ext_24_5m {
	clock-frequency = <24576000>;
};

&ext_200m {
	clock-frequency = <200000000>;
};

&hsi2c_8 {
	status = "okay";

	eeprom: eeprom@50 {
		compatible = "atmel,24c08";
		reg = <0x50>;
	};
};

&hsi2c_12 {
	status = "okay";
	/* TODO: add the devices once drivers exist */
};

&pinctrl_far_alive {
	key_voldown: key-voldown-pins {
		samsung,pins = "gpa7-3";
		samsung,pin-function = <GS101_PIN_FUNC_EINT>;
		samsung,pin-pud = <GS101_PIN_PULL_NONE>;
		samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
	};

	key_volup: key-volup-pins {
		samsung,pins = "gpa8-1";
		samsung,pin-function = <GS101_PIN_FUNC_EINT>;
		samsung,pin-pud = <GS101_PIN_PULL_NONE>;
		samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
	};
};

&pinctrl_gpio_alive {
	key_power: key-power-pins {
		samsung,pins = "gpa10-1";
		samsung,pin-function = <GS101_PIN_FUNC_EINT>;
		samsung,pin-pud = <GS101_PIN_PULL_NONE>;
		samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
	};
};

&serial_0 {
	status = "okay";
};

&ufs_0 {
	status = "okay";
	vcc-supply = <&ufs_0_fixed_vcc_reg>;
};

&ufs_0_phy {
	status = "okay";
};

&usbdrd31 {
	vdd10-supply = <&reg_placeholder>;
	vdd33-supply = <&reg_placeholder>;
	status = "okay";
};

&usbdrd31_dwc3 {
	dr_mode = "otg";
	usb-role-switch;
	role-switch-default-mode = "peripheral";
	maximum-speed = "super-speed-plus";
	status = "okay";
};

&usbdrd31_phy {
	/* TODO: Update these once PMIC is implemented */
	pll-supply = <&reg_placeholder>;
	dvdd-usb20-supply = <&reg_placeholder>;
	vddh-usb20-supply = <&reg_placeholder>;
	vdd33-usb20-supply = <&reg_placeholder>;
	vdda-usbdp-supply = <&reg_placeholder>;
	vddh-usbdp-supply = <&reg_placeholder>;
	status = "okay";
};

&usi_uart {
	samsung,clkreq-on; /* needed for UART mode */
	status = "okay";
};

&usi8 {
	samsung,mode = <USI_V2_I2C>;
	status = "okay";
};

&usi12 {
	samsung,mode = <USI_V2_I2C>;
	status = "okay";
};

&watchdog_cl0 {
	timeout-sec = <30>;
	status = "okay";
};