arch/arm/boot/dts/microchip/at91rm9200ek.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91rm9200ek.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91rm9200ek.dts
Extension
.dts
Size
2583 bytes
Lines
148
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-only
/*
 * at91rm9200ek.dts - Device Tree file for Atmel AT91RM9200 evaluation kit
 *
 *  Copyright (C) 2012 Joachim Eastwood <manabian@gmail.com>
 */
/dts-v1/;
#include "at91rm9200.dtsi"

/ {
	model = "Atmel AT91RM9200 evaluation kit";
	compatible = "atmel,at91rm9200ek", "atmel,at91rm9200";

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

	memory@20000000 {
		reg = <0x20000000 0x4000000>;
	};

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

		main_xtal {
			clock-frequency = <18432000>;
		};
	};

	ahb {
		apb {
			tcb0: timer@fffa0000 {
				timer@0 {
					compatible = "atmel,tcb-timer";
					reg = <0>, <1>;
				};

				timer@2 {
					compatible = "atmel,tcb-timer";
					reg = <2>;
				};
			};

			usb1: gadget@fffb0000 {
				atmel,vbus-gpio = <&pioD 4 GPIO_ACTIVE_HIGH>;
				atmel,pullup-gpio = <&pioD 5 GPIO_ACTIVE_HIGH>;
				status = "okay";
			};

			macb0: ethernet@fffbc000 {
				phy-mode = "rmii";
				status = "okay";

				phy0: ethernet-phy {
					interrupt-parent = <&pioC>;
					interrupts = <4 IRQ_TYPE_EDGE_BOTH>;
				};
			};

			usart1: serial@fffc4000 {
				pinctrl-0 =
						<&pinctrl_uart1
						 &pinctrl_uart1_rts
						 &pinctrl_uart1_cts
						 &pinctrl_uart1_dtr_dsr
						 &pinctrl_uart1_dcd
						 &pinctrl_uart1_ri>;
				status = "okay";

Annotation

Implementation Notes