arch/arm/boot/dts/microchip/at91-foxg20.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-foxg20.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-foxg20.dts
Extension
.dts
Size
3069 bytes
Lines
169
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-foxg20.dts - Device Tree file for Acme Systems FoxG20 board
 *
 * Based on DT files for at91sam9g20ek evaluation board (AT91SAM9G20 SoC)
 *
 * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>
 */
/dts-v1/;
#include "at91sam9g20.dtsi"

/ {
	model = "Acme Systems FoxG20";
	compatible = "acme,foxg20", "atmel,at91sam9g20", "atmel,at91sam9";

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

	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@fffa4000 {
				atmel,vbus-gpio = <&pioC 6 GPIO_ACTIVE_HIGH>;
				status = "okay";
			};

			mmc0: mmc@fffa8000 {
				pinctrl-0 = <
					&pinctrl_mmc0_clk
					&pinctrl_mmc0_slot1_cmd_dat0
					&pinctrl_mmc0_slot1_dat1_3>;
				pinctrl-names = "default";
				status = "okay";

				slot@1 {
					reg = <1>;
					bus-width = <4>;
				};
			};

			usart0: serial@fffb0000 {
				pinctrl-0 =
					<&pinctrl_usart0
					 &pinctrl_usart0_rts

Annotation

Implementation Notes