linux-loongson/arch/arm64/boot/dts/renesas/r8a779f4-s4sk.dts

// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
 * Device Tree Source for the R-Car S4 Starter Kit board
 *
 * Copyright (C) 2023 Renesas Electronics Corp.
 */

/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include "r8a779f4.dtsi"

/ {
	model = "R-Car S4 Starter Kit board";
	compatible = "renesas,s4sk", "renesas,r8a779f4", "renesas,r8a779f0";

	aliases {
		i2c0 = &i2c0;
		i2c1 = &i2c1;
		i2c2 = &i2c2;
		i2c3 = &i2c3;
		i2c4 = &i2c4;
		i2c5 = &i2c5;
		serial0 = &hscif0;
		serial1 = &hscif1;
		ethernet0 = &rswitch_port0;
		ethernet1 = &rswitch_port1;
	};

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

	memory@48000000 {
		device_type = "memory";
		/* first 128MB is reserved for secure area. */
		/* The last 512MB is reserved for CR. */
		reg = <0x0 0x48000000 0x0 0x58000000>;
	};

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

	vcc_sdhi: regulator-vcc-sdhi {
		compatible = "regulator-fixed";
		regulator-name = "SDHI Vcc";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		gpio = <&gpio1 24 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};
};

&eth_serdes {
	status = "okay";
};

&extal_clk {
	clock-frequency = <20000000>;
};

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

&hscif0 {
	pinctrl-0 = <&hscif0_pins>;
	pinctrl-names = "default";
	bootph-all;

	uart-has-rtscts;
	status = "okay";
};

&hscif1 {
	pinctrl-0 = <&hscif1_pins>;
	pinctrl-names = "default";

	uart-has-rtscts;
	status = "okay";
};

&i2c2 {
	pinctrl-0 = <&i2c2_pins>;
	pinctrl-names = "default";

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

&i2c4 {
	pinctrl-0 = <&i2c4_pins>;
	pinctrl-names = "default";

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

&i2c5 {
	pinctrl-0 = <&i2c5_pins>;
	pinctrl-names = "default";

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

	eeprom@50 {
		compatible = "st,24c16", "atmel,24c16";
		reg = <0x50>;
		pagesize = <16>;
	};
};

&mmc0 {
	pinctrl-0 = <&sd_pins>;
	pinctrl-names = "default";

	vmmc-supply = <&vcc_sdhi>;
	cd-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
	bus-width = <4>;
	status = "okay";
};

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

	hscif0_pins: hscif0 {
		groups = "hscif0_data", "hscif0_ctrl";
		function = "hscif0";
	};

	hscif1_pins: hscif1 {
		groups = "hscif1_data", "hscif1_ctrl";
		function = "hscif1";
	};

	i2c2_pins: i2c2 {
		groups = "i2c2";
		function = "i2c2";
	};

	i2c4_pins: i2c4 {
		groups = "i2c4";
		function = "i2c4";
	};

	i2c5_pins: i2c5 {
		groups = "i2c5";
		function = "i2c5";
	};

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

	sd_pins: sd {
		groups = "mmc_data4", "mmc_ctrl";
		function = "mmc";
		power-source = <3300>;
	};

	tsn0_pins: tsn0 {
		groups = "tsn0_mdio_b", "tsn0_link_b";
		function = "tsn0";
		drive-strength = <18>;
		power-source = <3300>;
	};

	tsn1_pins: tsn1 {
		groups = "tsn1_mdio_b", "tsn1_link_b";
		function = "tsn1";
		drive-strength = <18>;
		power-source = <3300>;
	};
};

&rswitch {
	pinctrl-0 = <&tsn0_pins>, <&tsn1_pins>;
	pinctrl-names = "default";
	status = "okay";
};

&rswitch_port0 {
	reg = <0>;
	phy-handle = <&ic99>;
	phy-mode = "sgmii";
	phys = <&eth_serdes 0>;
	status = "okay";

	mdio {
		#address-cells = <1>;
		#size-cells = <0>;

		ic99: ethernet-phy@1 {
			reg = <1>;
			compatible = "ethernet-phy-ieee802.3-c45";
			interrupts-extended = <&gpio3 10 IRQ_TYPE_LEVEL_LOW>;
		};
	};
};

&rswitch_port1 {
	reg = <1>;
	phy-handle = <&ic102>;
	phy-mode = "sgmii";
	phys = <&eth_serdes 1>;
	status = "okay";

	mdio {
		#address-cells = <1>;
		#size-cells = <0>;

		ic102: ethernet-phy@2 {
			reg = <2>;
			compatible = "ethernet-phy-ieee802.3-c45";
			interrupts-extended = <&gpio3 11 IRQ_TYPE_LEVEL_LOW>;
		};
	};
};

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

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

&ufs {
	status = "okay";
};

&ufs30_clk {
	clock-frequency = <38400000>;
};