arch/arm/boot/dts/microchip/at91-sama5d4_ma5d4.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama5d4_ma5d4.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-sama5d4_ma5d4.dtsi
Extension
.dtsi
Size
2745 bytes
Lines
137
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-later
/*
 * Copyright (C) 2015 Marek Vasut <marex@denx.de>
 */

#include "sama5d4.dtsi"

/ {
	model = "Aries/DENX MA5D4";
	compatible = "aries,ma5d4", "denx,ma5d4", "atmel,sama5d4", "atmel,sama5";

	memory@20000000 {
		reg = <0x20000000 0x10000000>;
	};

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

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

		clk20m: clk20m {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-frequency = <20000000>;
			clock-output-names = "clk20m";
		};
	};

	ahb {
		apb {
			mmc0: mmc@f8000000 {
				pinctrl-names = "default";
				pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_dat4_7>;
				vmmc-supply = <&vcc_mmc0_reg>;
				vqmmc-supply = <&vcc_3v3_reg>;
				status = "okay";
				slot@0 {
					reg = <0>;
					bus-width = <8>;
					broken-cd;
				};
			};

			spi0: spi@f8010000 {
				cs-gpios = <&pioC 3 0>, <0>, <0>, <0>;
				status = "okay";

				flash@0 {
					compatible = "atmel,at25df321a";
					spi-max-frequency = <50000000>;
					reg = <0>;
				};
			};

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

			spi1: spi@fc018000 {
				cs-gpios = <&pioB 22 0>, <&pioB 23 0>, <0>, <0>;
				status = "okay";

				can0: can@0 {
					compatible = "microchip,mcp2515";
					reg = <0>;
					clocks = <&clk20m>;

Annotation

Implementation Notes