arch/arm/boot/dts/microchip/at91-sama5d4ek.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama5d4ek.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-sama5d4ek.dts
Extension
.dts
Size
6814 bytes
Lines
324
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)
/*
 * at91-sama5d4ek.dts - Device Tree file for SAMA5D4 Evaluation Kit
 *
 *  Copyright (C) 2014 Atmel,
 *                2014 Nicolas Ferre <nicolas.ferre@atmel.com>
 */
/dts-v1/;
#include "sama5d4.dtsi"

/ {
	model = "Atmel SAMA5D4-EK";
	compatible = "atmel,sama5d4ek", "atmel,sama5d4", "atmel,sama5";

	chosen {
		stdout-path = "serial0:115200n8";
	};

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

	clocks {
		slow_xtal {
			clock-frequency = <32768>;
		};

		main_xtal {
			clock-frequency = <12000000>;
		};
	};

	ahb {
		apb {
			adc0: adc@fc034000 {
				pinctrl-names = "default";
				pinctrl-0 = <
					/* external trigger conflicts with USBA_VBUS */
					&pinctrl_adc0_ad0
					&pinctrl_adc0_ad1
					&pinctrl_adc0_ad2
					&pinctrl_adc0_ad3
					&pinctrl_adc0_ad4
					>;
				/* The vref depends on JP22 of EK. If connect 1-2 then use 3.3V. connect 2-3 use 3.0V */
				atmel,adc-vref = <3300>;
				/*atmel,adc-ts-wires = <4>;*/	/* Set up ADC touch screen */
				status = "okay";		/* Enable ADC IIO support */
			};

			mmc0: mmc@f8000000 {
				pinctrl-names = "default";
				pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_cd>;
				slot@0 {
					reg = <0>;
					bus-width = <4>;
					cd-gpios = <&pioE 5 0>;
				};
			};

			ssc0: ssc@f8008000 {
				status = "okay";
			};

			spi0: spi@f8010000 {
				cs-gpios = <&pioC 3 0>, <0>, <0>, <0>;
				status = "okay";
				flash@0 {
					compatible = "atmel,at25df321a";
					spi-max-frequency = <50000000>;

Annotation

Implementation Notes