arch/arm/dts/r8a779h0-gray-hawk-cpu.dtsi

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/*
 * Device Tree Source for the Gray Hawk CPU board
 *
 * Copyright (C) 2023 Renesas Electronics Corp.
 */

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

#include "r8a779h0.dtsi"

/ {
	model = "Renesas Gray Hawk CPU board";
	compatible = "renesas,grayhawk-cpu", "renesas,r8a779h0";

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

	chosen {
		bootargs = "ignore_loglevel";
		stdout-path = "serial0:921600n8";
	};

	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 0x1 0x80000000>;
	};

	reg_1p8v: regulator-1p8v {
			compatible = "regulator-fixed";
			regulator-name = "fixed-1.8V";
			regulator-min-microvolt = <1800000>;
			regulator-max-microvolt = <1800000>;
			regulator-boot-on;
			regulator-always-on;
	};

	reg_3p3v: regulator-3p3v {
			compatible = "regulator-fixed";
			regulator-name = "fixed-3.3V";
			regulator-min-microvolt = <3300000>;
			regulator-max-microvolt = <3300000>;
			regulator-boot-on;
			regulator-always-on;
	};
};

&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 {
	uart-has-rtscts;
	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>;
	};
};

&mmc0 {
	pinctrl-0 = <&mmc_pins>;
	pinctrl-1 = <&mmc_pins>;
	pinctrl-names = "default", "state_uhs";

	vmmc-supply = <&reg_3p3v>;
	vqmmc-supply = <&reg_1p8v>;
	mmc-hs200-1_8v;
	mmc-hs400-1_8v;
	bus-width = <8>;
	no-sd;
	no-sdio;
	non-removable;
	full-pwr-cycle-in-suspend;
	status = "okay";
};

&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", "hscif0_ctrl";
		function = "hscif0";
	};

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

	mmc_pins: mmc {
		groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
		function = "mmc";
		power-source = <1800>;
	};

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

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