arch/arm/boot/dts/renesas/emev2.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/emev2.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/emev2.dtsi
Extension
.dtsi
Size
6834 bytes
Lines
290
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 Emma Mobile EV2 SoC
 *
 * Copyright (C) 2012 Renesas Solutions Corp.
 */

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

/ {
	compatible = "renesas,emev2";
	interrupt-parent = <&gic>;
	#address-cells = <1>;
	#size-cells = <1>;

	aliases {
		gpio0 = &gpio0;
		gpio1 = &gpio1;
		gpio2 = &gpio2;
		gpio3 = &gpio3;
		gpio4 = &gpio4;
		i2c0 = &iic0;
		i2c1 = &iic1;
	};

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

		cpu0: cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a9";
			reg = <0>;
			clock-frequency = <533000000>;
		};
		cpu1: cpu@1 {
			device_type = "cpu";
			compatible = "arm,cortex-a9";
			reg = <1>;
			clock-frequency = <533000000>;
		};
	};

	gic: interrupt-controller@e0020000 {
		compatible = "arm,pl390";
		interrupt-controller;
		#interrupt-cells = <3>;
		reg = <0xe0028000 0x1000>,
		      <0xe0020000 0x0100>;
	};

	pmu {
		compatible = "arm,cortex-a9-pmu";
		interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-affinity = <&cpu0>, <&cpu1>;
	};

	clocks@e0110000 {
		compatible = "renesas,emev2-smu";
		reg = <0xe0110000 0x10000>;
		#address-cells = <2>;
		#size-cells = <0>;

		c32ki: c32ki {
			compatible = "fixed-clock";
			clock-frequency = <32768>;
			#clock-cells = <0>;
		};

Annotation

Implementation Notes