linux_dsm_epyc7002/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts

/*
 * Device Tree Source for the Salvator-X board
 *
 * Copyright (C) 2015 Renesas Electronics Corp.
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2.  This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

/*
 * SSI-AK4613
 *
 * This command is required when Playback/Capture
 *
 *	amixer set "DVC Out" 100%
 *	amixer set "DVC In" 100%
 *
 * You can use Mute
 *
 *	amixer set "DVC Out Mute" on
 *	amixer set "DVC In Mute" on
 *
 * You can use Volume Ramp
 *
 *	amixer set "DVC Out Ramp Up Rate"   "0.125 dB/64 steps"
 *	amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
 *	amixer set "DVC Out Ramp" on
 *	aplay xxx.wav &
 *	amixer set "DVC Out"  80%  // Volume Down
 *	amixer set "DVC Out" 100%  // Volume Up
 */

/dts-v1/;
#include "r8a7795.dtsi"

/ {
	model = "Renesas Salvator-X board based on r8a7795";
	compatible = "renesas,salvator-x", "renesas,r8a7795";

	aliases {
		serial0 = &scif2;
		serial1 = &scif1;
		ethernet0 = &avb;
	};

	chosen {
		bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
		stdout-path = "serial0:115200n8";
	};

	memory@48000000 {
		device_type = "memory";
		/* first 128MB is reserved for secure area. */
		reg = <0x0 0x48000000 0x0 0x38000000>;
	};

	x12_clk: x12_clk {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <24576000>;
	};

	rsnd_ak4613: sound {
		compatible = "simple-audio-card";

		simple-audio-card,format = "left_j";
		simple-audio-card,bitclock-master = <&sndcpu>;
		simple-audio-card,frame-master = <&sndcpu>;

		sndcpu: simple-audio-card,cpu {
			sound-dai = <&rcar_sound>;
		};

		sndcodec: simple-audio-card,codec {
			sound-dai = <&ak4613>;
		};
	};
};

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

&pfc {
	scif1_pins: scif1 {
		renesas,groups = "scif1_data_a", "scif1_ctrl";
		renesas,function = "scif1";
	};
	scif2_pins: scif2 {
		renesas,groups = "scif2_data_a";
		renesas,function = "scif2";
	};

	i2c2_pins: i2c2 {
		renesas,groups = "i2c2_a";
		renesas,function = "i2c2";
	};

	avb_pins: avb {
		renesas,groups = "avb_mdc";
		renesas,function = "avb";
	};

	sound_pins: sound {
		renesas,groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
		renesas,function = "ssi";
	};

	sound_clk_pins: sound_clk {
		renesas,groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",
				 "audio_clkout_a", "audio_clkout3_a";
		renesas,function = "audio_clk";
	};
};

&scif1 {
	pinctrl-0 = <&scif1_pins>;
	pinctrl-names = "default";

	status = "okay";
};

&scif2 {
	pinctrl-0 = <&scif2_pins>;
	pinctrl-names = "default";

	status = "okay";
};

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

	status = "okay";

	clock-frequency = <100000>;

	ak4613: codec@10 {
		compatible = "asahi-kasei,ak4613";
		#sound-dai-cells = <0>;
		reg = <0x10>;
		clocks = <&rcar_sound 3>;
	};
};

&rcar_sound {
	pinctrl-0 = <&sound_pins &sound_clk_pins>;
	pinctrl-names = "default";

	/* Single DAI */
	#sound-dai-cells = <0>;

	/* audio_clkout0/1/2/3 */
	#clock-cells = <1>;
	clock-frequency = <11289600>;

	status = "okay";

	rcar_sound,dai {
		dai0 {
			playback = <&ssi0 &src0 &dvc0>;
			capture  = <&ssi1 &src1 &dvc1>;
		};
	};
};

&ssi1 {
	shared-pin;
};

&audio_clk_a {
	clock-frequency = <22579200>;
};

&avb {
	pinctrl-0 = <&avb_pins>;
	pinctrl-names = "default";
	renesas,no-ether-link;
	phy-handle = <&phy0>;
	status = "okay";

	phy0: ethernet-phy@0 {
		rxc-skew-ps = <900>;
		rxdv-skew-ps = <0>;
		rxd0-skew-ps = <0>;
		rxd1-skew-ps = <0>;
		rxd2-skew-ps = <0>;
		rxd3-skew-ps = <0>;
		txc-skew-ps = <900>;
		txen-skew-ps = <0>;
		txd0-skew-ps = <0>;
		txd1-skew-ps = <0>;
		txd2-skew-ps = <0>;
		txd3-skew-ps = <0>;
		reg = <0>;
		interrupt-parent = <&gpio2>;
		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
	};
};