arch/arm64/boot/dts/renesas/hihope-rev2.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/hihope-rev2.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/hihope-rev2.dtsi
Extension
.dtsi
Size
1551 bytes
Lines
84
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/G2[MN] main board Rev.2.0 common
 * parts
 *
 * Copyright (C) 2020 Renesas Electronics Corp.
 */

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

/ {
	leds {
		compatible = "gpio-leds";

		bt_active_led {
			label = "blue:bt";
			gpios = <&gpio7  0 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "hci0-power";
			default-state = "off";
		};

		wlan_active_led {
			label = "yellow:wlan";
			gpios = <&gpio7  1 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "phy0tx";
			default-state = "off";
		};
	};

	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 = <&gpio_expander 1 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};
};

&hscif0 {
	bluetooth {
		compatible = "ti,wl1837-st";
		enable-gpios = <&gpio_expander 2 GPIO_ACTIVE_HIGH>;
	};
};

&i2c4 {
	gpio_expander: gpio@20 {
		compatible = "onnn,pca9654";
		reg = <0x20>;
		gpio-controller;
		#gpio-cells = <2>;
	};
};

&pfc {
	sound_clk_pins: sound_clk {
		groups = "audio_clk_a_a";
		function = "audio_clk";
	};
};

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

	status = "okay";

Annotation

Implementation Notes