arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-bonnell.dts

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

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-bonnell.dts
Extension
.dts
Size
9995 bytes
Lines
609
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
// Copyright 2022 IBM Corp.
/dts-v1/;

#include "aspeed-g6.dtsi"
#include <dt-bindings/gpio/aspeed-gpio.h>
#include <dt-bindings/i2c/i2c.h>
#include <dt-bindings/leds/leds-pca955x.h>

/ {
	model = "Bonnell";
	compatible = "ibm,bonnell-bmc", "aspeed,ast2600";

	aliases {
		serial4 = &uart5;
		i2c16 = &i2c11mux0chn0;
		i2c17 = &i2c11mux0chn1;
		i2c18 = &i2c11mux0chn2;
		i2c19 = &i2c11mux0chn3;
	};

	chosen {
		stdout-path = &uart5;
		bootargs = "console=ttyS4,115200n8 earlycon";
	};

	memory@80000000 {
		device_type = "memory";
		reg = <0x80000000 0x40000000>;
	};

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

		event_log: tcg_event_log@b3d00000 {
			no-map;
			reg = <0xb3d00000 0x100000>;
		};

		ramoops@b3e00000 {
			compatible = "ramoops";
			reg = <0xb3e00000 0x200000>; /* 16 * (4 * 0x8000) */
			record-size = <0x8000>;
			console-size = <0x8000>;
			ftrace-size = <0x8000>;
			pmsg-size = <0x8000>;
			max-reason = <3>; /* KMSG_DUMP_EMERG */
		};

		/* LPC FW cycle bridge region requires natural alignment */
		flash_memory: region@b4000000 {
			no-map;
			reg = <0xb4000000 0x04000000>; /* 64M */
		};

		/* VGA region is dictated by hardware strapping */
		vga_memory: region@bf000000 {
			no-map;
			compatible = "shared-dma-pool";
			reg = <0xbf000000 0x01000000>;  /* 16M */
		};
	};

	leds {
		compatible = "gpio-leds";

		fan0 {
			gpios = <&gpio0 ASPEED_GPIO(G, 0) GPIO_ACTIVE_LOW>;

Annotation

Implementation Notes