arch/arm64/boot/dts/renesas/r8a77961.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/r8a77961.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/r8a77961.dtsi
Extension
.dtsi
Size
82492 bytes
Lines
2965
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 R-Car M3-W+ (R8A77961) SoC
 *
 * Copyright (C) 2016-2017 Renesas Electronics Corp.
 */

#include <dt-bindings/clock/r8a77961-cpg-mssr.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/r8a77961-sysc.h>

/ {
	compatible = "renesas,r8a77961";
	#address-cells = <2>;
	#size-cells = <2>;
	interrupt-parent = <&gic>;

	/*
	 * The external audio clocks are configured as 0 Hz fixed frequency
	 * clocks by default.
	 * Boards that provide audio clocks should override them.
	 */
	audio_clk_a: audio_clk_a {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <0>;
	};

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

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

	/* External CAN clock - to be overridden by boards that provide it */
	can_clk: can {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <0>;
	};

	cluster0_opp: opp-table-0 {
		compatible = "operating-points-v2";
		opp-shared;

		opp-500000000 {
			opp-hz = /bits/ 64 <500000000>;
			opp-microvolt = <830000>;
			clock-latency-ns = <300000>;
		};
		opp-1000000000 {
			opp-hz = /bits/ 64 <1000000000>;
			opp-microvolt = <830000>;
			clock-latency-ns = <300000>;
		};
		opp-1500000000 {
			opp-hz = /bits/ 64 <1500000000>;
			opp-microvolt = <830000>;
			clock-latency-ns = <300000>;
			opp-suspend;
		};
		opp-1600000000 {
			opp-hz = /bits/ 64 <1600000000>;
			opp-microvolt = <900000>;

Annotation

Implementation Notes