arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjefferson.dts

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

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjefferson.dts
Extension
.dts
Size
12092 bytes
Lines
623
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
// Copyright 2024 Ampere Computing LLC.

/dts-v1/;

#include "aspeed-g6.dtsi"
#include <dt-bindings/i2c/i2c.h>
#include <dt-bindings/gpio/aspeed-gpio.h>

/ {
	model = "Ampere Mt. Jefferson BMC";
	compatible = "ampere,mtjefferson-bmc", "aspeed,ast2600";

	aliases {
		i2c20 = &i2c4_bus70_chn0;
		i2c22 = &i2c4_bus70_chn2;

		/*
		 *  I2C OCP alias port
		 */
		i2c30 = &ocpslot;

		/*
		 *  I2C NVMe alias port
		 */
		i2c48 = &nvmeslot_0;
		i2c49 = &nvmeslot_1;
		i2c50 = &nvmeslot_2;
		i2c51 = &nvmeslot_3;
		i2c52 = &nvmeslot_4;
		i2c53 = &nvmeslot_5;
		i2c54 = &nvmeslot_6;
		i2c55 = &nvmeslot_7;
		i2c56 = &nvmeslot_8;
		i2c57 = &nvmeslot_9;
		i2c58 = &nvmeslot_10;
		i2c59 = &nvmeslot_11;
	};

	chosen {
		stdout-path = &uart5;
	};

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

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

		gfx_memory: framebuffer {
			size = <0x01000000>;
			alignment = <0x01000000>;
			compatible = "shared-dma-pool";
			reusable;
		};

		video_engine_memory: video {
			size = <0x04000000>;
			alignment = <0x01000000>;
			compatible = "shared-dma-pool";
			reusable;
		};

		vga_memory: region@bf000000 {
			no-map;
			compatible = "shared-dma-pool";

Annotation

Implementation Notes