arch/arm/boot/dts/microchip/at91-ariag25.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-ariag25.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-ariag25.dts
Extension
.dts
Size
3016 bytes
Lines
184
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
/*
 * at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
 *
 * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
 *                    Robert Nelson <robertcnelson@gmail.com>
 */
/dts-v1/;
#include "at91sam9g25.dtsi"

/ {
	model = "Acme Systems Aria G25";
	compatible = "acme,ariag25", "atmel,at91sam9x5ek",
		     "atmel,at91sam9x5", "atmel,at91sam9";

	aliases {
		serial5 = &uart0;
		serial6 = &uart1;
	};

	chosen {
		bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
	};

	memory@20000000 {
		/* 128 MB, change this for 256 MB revision */
		reg = <0x20000000 0x8000000>;
	};

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

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

	leds {
		compatible = "gpio-leds";

		/* little green LED in middle of Aria G25 module */
		aria_led {
			label = "aria_led";
			gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
			linux,default-trigger = "heartbeat";
		};

	};

	onewire {
		compatible = "w1-gpio";
		gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_w1_0>;
	};
};

&adc0 {
	status = "okay";
	atmel,adc-channels-used = <0xf>;
};

&dbgu {
	status = "okay";
};

&i2c0 {
	status = "okay";

Annotation

Implementation Notes