arch/arm64/boot/dts/renesas/hihope-rev4.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/hihope-rev4.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/hihope-rev4.dtsi
Extension
.dtsi
Size
2928 bytes
Lines
126
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Device Tree Source for the HiHope RZ/G2H Rev.4.0 and
 * HiHope RZ/G2[MN] Rev.3.0/4.0 main board common parts
 *
 * Copyright (C) 2020 Renesas Electronics Corp.
 */

#include <dt-bindings/gpio/gpio.h>
#include "hihope-common.dtsi"

/ {
	audio_clkout: audio-clkout {
		/*
		 * This is same as <&rcar_sound 0>
		 * but needed to avoid cs2000/rcar_sound probe dead-lock
		 */
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <12288000>;
	};

	wlan_en_reg: regulator-wlan_en {
		compatible = "regulator-fixed";
		regulator-name = "wlan-en-regulator";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		startup-delay-us = <70000>;

		gpio = <&gpio4 6 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	x1801_clk: x1801-clock {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <24576000>;
	};
};

&hscif0 {
	bluetooth {
		compatible = "ti,wl1837-st";
		enable-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
	};
};

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

	cs2000: clock-controller@4f {
		#clock-cells = <0>;
		compatible = "cirrus,cs2000-cp";
		reg = <0x4f>;
		clocks = <&audio_clkout>, <&x1801_clk>;
		clock-names = "clk_in", "ref_clk";

		assigned-clocks = <&cs2000>;
		assigned-clock-rates = <24576000>; /* 1/1 divide */
	};
};

&pfc {
	i2c2_pins: i2c2 {
		groups = "i2c2_a";
		function = "i2c2";
	};

Annotation

Implementation Notes