arch/arm/boot/dts/microchip/sam9x7.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/sam9x7.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/sam9x7.dtsi
Extension
.dtsi
Size
38466 bytes
Lines
1317
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+ OR MIT)
/*
 * sam9x7.dtsi - Device Tree Include file for Microchip SAM9X7 SoC family
 *
 * Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries
 *
 * Author: Varshini Rajendran <varshini.rajendran@microchip.com>
 */

#include <dt-bindings/clock/at91.h>
#include <dt-bindings/dma/at91.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/mfd/at91-usart.h>
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/pinctrl/at91.h>

/ {
	model = "Microchip SAM9X7 SoC";
	compatible = "microchip,sam9x7";
	#address-cells = <1>;
	#size-cells = <1>;
	interrupt-parent = <&aic>;

	aliases {
		serial0 = &dbgu;
		gpio0 = &pioA;
		gpio1 = &pioB;
		gpio2 = &pioC;
		gpio3 = &pioD;
	};

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

		cpu@0 {
			compatible = "arm,arm926ej-s";
			reg = <0>;
			device_type = "cpu";
		};
	};

	clocks {
		slow_xtal: clock-slowxtal {
			compatible = "fixed-clock";
			clock-output-names = "slow_xtal";
			#clock-cells = <0>;
		};

		main_xtal: clock-mainxtal {
			compatible = "fixed-clock";
			clock-output-names = "main_xtal";
			#clock-cells = <0>;
		};
	};

	sram: sram@300000 {
		compatible = "mmio-sram";
		reg = <0x300000 0x10000>;
		ranges = <0 0x300000 0x10000>;
		#address-cells = <1>;
		#size-cells = <1>;
	};

	ahb {
		compatible = "simple-bus";
		ranges;
		#address-cells = <1>;

Annotation

Implementation Notes