arch/arm/boot/dts/renesas/sh73a0-kzm9g.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/sh73a0-kzm9g.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/sh73a0-kzm9g.dts
Extension
.dts
Size
7760 bytes
Lines
400
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 KZM-A9-GT board
 *
 * Copyright (C) 2012 Horms Solutions Ltd.
 *
 * Based on sh73a0-kzm9g.dts
 * Copyright (C) 2012 Renesas Solutions Corp.
 */

/dts-v1/;
#include "sh73a0.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	model = "KZM-A9-GT";
	compatible = "renesas,kzm9g", "renesas,sh73a0";

	aliases {
		serial0 = &scifa4;
	};

	cpus {
		cpu@0 {
			cpu0-supply = <&vdd_dvfs>;
			operating-points = <1196000 1315000>,	/* kHz  uV */
					   < 598000 1175000>,
					   < 398667 1065000>;
			voltage-tolerance = <1>; /* 1% */
		};
	};

	chosen {
		bootargs = "root=/dev/nfs ip=on ignore_loglevel rw";
		stdout-path = "serial0:115200n8";
	};

	memory@40000000 {
		device_type = "memory";
		reg = <0x40000000 0x20000000>;
	};

	reg_1p8v: regulator-1p8v {
		compatible = "regulator-fixed";
		regulator-name = "fixed-1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-always-on;
		regulator-boot-on;
	};

	reg_3p3v: regulator-3p3v {
		compatible = "regulator-fixed";
		regulator-name = "fixed-3.3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
		regulator-boot-on;
	};

	vmmc_sdhi0: regulator-vmmc-sdhi0 {
		compatible = "regulator-fixed";
		regulator-name = "SDHI0 Vcc";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		gpio = <&pfc 15 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

Annotation

Implementation Notes