arch/arm/boot/dts/renesas/r8a7778.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7778.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/r8a7778.dtsi
Extension
.dtsi
Size
19399 bytes
Lines
679
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 M1A (R8A77781) SoC
 *
 * Copyright (C) 2013  Renesas Solutions Corp.
 * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * based on r8a7779
 *
 * Copyright (C) 2013 Renesas Solutions Corp.
 * Copyright (C) 2013 Simon Horman
 */

#include <dt-bindings/clock/r8a7778-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	compatible = "renesas,r8a7778";
	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 = <800000000>;
			clocks = <&z_clk>;
		};
	};

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

	lbsc: bus@0 {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0 0 0x1c000000>;
	};

	ether: ethernet@fde00000 {
		compatible = "renesas,ether-r8a7778",
			     "renesas,rcar-gen1-ether";
		reg = <0xfde00000 0x400>;
		interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
		clocks = <&mstp1_clks R8A7778_CLK_ETHER>;
		power-domains = <&cpg_clocks>;
		phy-mode = "rmii";
		#address-cells = <1>;
		#size-cells = <0>;
		status = "disabled";
	};

	gic: interrupt-controller@fe438000 {
		compatible = "arm,pl390";
		#interrupt-cells = <3>;
		interrupt-controller;
		reg = <0xfe438000 0x1000>,
		      <0xfe430000 0x100>;
	};

Annotation

Implementation Notes