arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi
Extension
.dtsi
Size
3220 bytes
Lines
170
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
/*
 * at91sam9x5ek.dtsi - Device Tree file for AT91SAM9x5CM Base board
 *
 *  Copyright (C) 2012 Atmel,
 *                2012 Nicolas Ferre <nicolas.ferre@atmel.com>
 */
#include "at91sam9x5cm.dtsi"

/ {
	model = "Atmel AT91SAM9X5-EK";
	compatible = "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";

	chosen {
		bootargs = "root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
		stdout-path = "serial0:115200n8";
	};

	sound {
		compatible = "atmel,sam9x5-wm8731-audio";

		atmel,model = "wm8731 @ AT91SAM9X5EK";

		atmel,audio-routing =
			"Headphone Jack", "RHPOUT",
			"Headphone Jack", "LHPOUT",
			"LLINEIN", "Line In Jack",
			"RLINEIN", "Line In Jack";

		atmel,ssc-controller = <&ssc0>;
		atmel,audio-codec = <&wm8731>;
	};
};

&adc0 {
	atmel,adc-ts-wires = <4>;
	atmel,adc-ts-pressure-threshold = <10000>;
	status = "okay";
};

&dbgu {
	atmel,use-dma-rx;
	atmel,use-dma-tx;
	status = "okay";
};

&i2c0 {
	status = "okay";

	wm8731: wm8731@1a {
		compatible = "wm8731";
		reg = <0x1a>;
	};
};

&mmc0 {
	pinctrl-0 = <
		&pinctrl_board_mmc0
		&pinctrl_mmc0_slot0_clk_cmd_dat0
		&pinctrl_mmc0_slot0_dat1_3>;
	pinctrl-names = "default";
	status = "okay";

	slot@0 {
		reg = <0>;
		bus-width = <4>;
		cd-gpios = <&pioD 15 GPIO_ACTIVE_HIGH>;
	};
};

Annotation

Implementation Notes