arch/arm/boot/dts/microchip/sama5d4.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/sama5d4.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/sama5d4.dtsi
Extension
.dtsi
Size
49023 bytes
Lines
1457
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)
/*
 * sama5d4.dtsi - Device Tree Include file for SAMA5D4 family SoC
 *
 *  Copyright (C) 2014 Atmel,
 *                2014 Nicolas Ferre <nicolas.ferre@atmel.com>
 */

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

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	model = "Atmel SAMA5D4 family SoC";
	compatible = "atmel,sama5d4";
	interrupt-parent = <&aic>;

	aliases {
		serial0 = &usart3;
		serial1 = &usart4;
		serial2 = &usart2;
		serial3 = &usart0;
		serial4 = &usart1;
		serial5 = &uart0;
		serial6 = &uart1;
		gpio0 = &pioA;
		gpio1 = &pioB;
		gpio2 = &pioC;
		gpio3 = &pioD;
		gpio4 = &pioE;
		pwm0 = &pwm0;
		ssc0 = &ssc0;
		ssc1 = &ssc1;
		tcb0 = &tcb0;
		tcb1 = &tcb1;
		i2c0 = &i2c0;
		i2c1 = &i2c1;
		i2c2 = &i2c2;
	};
	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a5";
			reg = <0>;
			d-cache-size = <0x8000>;	// L1, 32 KB
			i-cache-size = <0x8000>;	// L1, 32 KB
			next-level-cache = <&L2>;
		};
	};

	memory@20000000 {
		device_type = "memory";
		reg = <0x20000000 0x20000000>;
	};

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

Annotation

Implementation Notes