arch/arm/boot/dts/aspeed/aspeed-bmc-amd-ethanolx.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-ethanolx.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/aspeed/aspeed-bmc-amd-ethanolx.dts
Extension
.dts
Size
6437 bytes
Lines
347
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
// Copyright (c) 2020 AMD Inc.
// Author: Supreeth Venkatesh <supreeth.venkatesh@amd.com>
/dts-v1/;

#include "aspeed-g5.dtsi"
#include <dt-bindings/gpio/aspeed-gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	model = "AMD EthanolX BMC";
	compatible = "amd,ethanolx-bmc", "aspeed,ast2500";

	memory@80000000 {
		reg = <0x80000000 0x20000000>;
	};

	reserved-memory {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		video_engine_memory: jpegbuffer {
			size = <0x02000000>;	/* 32M */
			alignment = <0x01000000>;
			compatible = "shared-dma-pool";
			reusable;
		};
	};


	aliases {
		serial0 = &uart1;
		serial4 = &uart5;
	};
	chosen {
		stdout-path = &uart5;
		bootargs = "console=ttyS4,115200 earlycon";
	};
	leds {
		compatible = "gpio-leds";

		fault {
			gpios = <&gpio ASPEED_GPIO(A, 2) GPIO_ACTIVE_LOW>;
		};

		identify {
			gpios = <&gpio ASPEED_GPIO(A, 3) GPIO_ACTIVE_LOW>;
		};
	};
	iio-hwmon {
		compatible = "iio-hwmon";
		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>, <&adc 4>;
	};
};

&fmc {
	status = "okay";
	flash@0 {
		status = "okay";
		m25p,fast-read;
		label = "bmc";
		#include "openbmc-flash-layout.dtsi"
	};
};

&spi1 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_spi1_default>;

Annotation

Implementation Notes