linuxdebug/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/*
 * Device Tree Source for the White Hawk CPU board
 *
 * Copyright (C) 2022 Renesas Electronics Corp.
 */

#include "r8a779g0.dtsi"

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

/ {
	model = "Renesas White Hawk CPU board";
	compatible = "renesas,white-hawk-cpu", "renesas,r8a779g0";

	aliases {
		ethernet0 = &avb0;
		serial0 = &hscif0;
	};

	chosen {
		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
		stdout-path = "serial0:921600n8";
	};

	keys {
		compatible = "gpio-keys";

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

		key-1 {
			gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_1>;
			label = "SW47";
			wakeup-source;
			debounce-interval = <20>;
		};

		key-2 {
			gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_2>;
			label = "SW48";
			wakeup-source;
			debounce-interval = <20>;
		};

		key-3 {
			gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_3>;
			label = "SW49";
			wakeup-source;
			debounce-interval = <20>;
		};
	};

	leds {
		compatible = "gpio-leds";

		led-1 {
			gpios = <&gpio7 0 GPIO_ACTIVE_HIGH>;
			color = <LED_COLOR_ID_GREEN>;
			function = LED_FUNCTION_INDICATOR;
			function-enumerator = <1>;
		};

		led-2 {
			gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
			color = <LED_COLOR_ID_GREEN>;
			function = LED_FUNCTION_INDICATOR;
			function-enumerator = <2>;
		};

		led-3 {
			gpios = <&gpio7 2 GPIO_ACTIVE_HIGH>;
			color = <LED_COLOR_ID_GREEN>;
			function = LED_FUNCTION_INDICATOR;
			function-enumerator = <3>;
		};
	};

	memory@48000000 {
		device_type = "memory";
		/* first 128MB is reserved for secure area. */
		reg = <0x0 0x48000000 0x0 0x78000000>;
	};

	memory@480000000 {
		device_type = "memory";
		reg = <0x4 0x80000000 0x0 0x80000000>;
	};

	memory@600000000 {
		device_type = "memory";
		reg = <0x6 0x00000000 0x1 0x00000000>;
	};
};

&avb0 {
	pinctrl-0 = <&avb0_pins>;
	pinctrl-names = "default";
	phy-handle = <&phy0>;
	tx-internal-delay-ps = <2000>;
	status = "okay";

	phy0: ethernet-phy@0 {
		compatible = "ethernet-phy-id0022.1622",
			     "ethernet-phy-ieee802.3-c22";
		rxc-skew-ps = <1500>;
		reg = <0>;
		interrupt-parent = <&gpio7>;
		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
		reset-gpios = <&gpio7 10 GPIO_ACTIVE_LOW>;
	};
};

&extal_clk {
	clock-frequency = <16666666>;
};

&extalr_clk {
	clock-frequency = <32768>;
};

&hscif0 {
	status = "okay";
};

&i2c0 {
	pinctrl-0 = <&i2c0_pins>;
	pinctrl-names = "default";

	status = "okay";
	clock-frequency = <400000>;

	eeprom@50 {
		compatible = "rohm,br24g01", "atmel,24c01";
		label = "cpu-board";
		reg = <0x50>;
		pagesize = <8>;
	};
};

&pfc {
	pinctrl-0 = <&scif_clk_pins>;
	pinctrl-names = "default";

	avb0_pins: avb0 {
		mux {
			groups = "avb0_link", "avb0_mdio", "avb0_rgmii",
				 "avb0_txcrefclk";
			function = "avb0";
		};

		pins_mdio {
			groups = "avb0_mdio";
			drive-strength = <21>;
		};

		pins_mii {
			groups = "avb0_rgmii";
			drive-strength = <21>;
		};

	};
	hscif0_pins: hscif0 {
		groups = "hscif0_data";
		function = "hscif0";
	};

	i2c0_pins: i2c0 {
		groups = "i2c0";
		function = "i2c0";
	};

	keys_pins: keys {
		pins = "GP_5_0", "GP_5_1", "GP_5_2";
		bias-pull-up;
	};

	scif_clk_pins: scif_clk {
		groups = "scif_clk";
		function = "scif_clk";
	};
};

&scif_clk {
	clock-frequency = <24000000>;
};

&rwdt {
	timeout-sec = <60>;
	status = "okay";
};