arch/arm/boot/dts/microchip/at91-sama5d4_xplained.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama5d4_xplained.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-sama5d4_xplained.dts
Extension
.dts
Size
6395 bytes
Lines
299
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-sama5d4_xplained.dts - Device Tree file for SAMA5D4 Xplained board
 *
 *  Copyright (C) 2015 Atmel,
 *                2015 Josh Wu <josh.wu@atmel.com>
 */
/dts-v1/;
#include "sama5d4.dtsi"
#include <dt-bindings/input/input.h>

/ {
	model = "Atmel SAMA5D4 Xplained";
	compatible = "atmel,sama5d4-xplained", "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 {
			uart0: serial@f8004000 {
				atmel,use-dma-rx;
				atmel,use-dma-tx;
				status = "okay";
			};

			i2c0: i2c@f8014000 {
				i2c-digital-filter;
				status = "okay";
			};

			macb0: ethernet@f8020000 {
				phy-mode = "rmii";
				status = "okay";
				pinctrl-names = "default";
				pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>;

				phy0: ethernet-phy@1 {
					interrupt-parent = <&pioE>;
					interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
					reg = <1>;
				};
			};

			mmc1: mmc@fc000000 {
				pinctrl-names = "default";
				pinctrl-0 = <&pinctrl_mmc1_clk_cmd_dat0 &pinctrl_mmc1_dat1_3 &pinctrl_mmc1_cd>;
				vmmc-supply = <&vcc_mmc1_reg>;
				vqmmc-supply = <&vcc_3v3_reg>;
				status = "okay";
				slot@0 {
					reg = <0>;
					bus-width = <4>;
					cd-gpios = <&pioE 3 0>;
				};

Annotation

Implementation Notes