arch/arm/boot/dts/renesas/r8a7779.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7779.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/r8a7779.dtsi
Extension
.dtsi
Size
20060 bytes
Lines
730
Domain
Architecture Layer
Bucket
arch/arm
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 H1 (R8A77790) SoC
 *
 * Copyright (C) 2013 Renesas Solutions Corp.
 * Copyright (C) 2013 Simon Horman
 */

#include <dt-bindings/clock/r8a7779-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/power/r8a7779-sysc.h>

/ {
	compatible = "renesas,r8a7779";
	interrupt-parent = <&gic>;
	#address-cells = <1>;
	#size-cells = <1>;

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

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a9";
			reg = <0>;
			clock-frequency = <1000000000>;
			clocks = <&cpg_clocks R8A7779_CLK_Z>;
		};
		cpu@1 {
			device_type = "cpu";
			compatible = "arm,cortex-a9";
			reg = <1>;
			clock-frequency = <1000000000>;
			clocks = <&cpg_clocks R8A7779_CLK_Z>;
			power-domains = <&sysc R8A7779_PD_ARM1>;
		};
		cpu@2 {
			device_type = "cpu";
			compatible = "arm,cortex-a9";
			reg = <2>;
			clock-frequency = <1000000000>;
			clocks = <&cpg_clocks R8A7779_CLK_Z>;
			power-domains = <&sysc R8A7779_PD_ARM2>;
		};
		cpu@3 {
			device_type = "cpu";
			compatible = "arm,cortex-a9";
			reg = <3>;
			clock-frequency = <1000000000>;
			clocks = <&cpg_clocks R8A7779_CLK_Z>;
			power-domains = <&sysc R8A7779_PD_ARM3>;
		};
	};

	aliases {
		spi0 = &hspi0;
		spi1 = &hspi1;
		spi2 = &hspi2;
	};

	gic: interrupt-controller@f0001000 {
		compatible = "arm,cortex-a9-gic";
		#interrupt-cells = <3>;
		interrupt-controller;
		reg = <0xf0001000 0x1000>,
		      <0xf0000100 0x100>;
	};

Annotation

Implementation Notes