arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-tiogapass.dts

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

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-tiogapass.dts
Extension
.dts
Size
10116 bytes
Lines
550
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) 2018 Facebook Inc.
// Author: Vijay Khemka <vijaykhemka@fb.com>
/dts-v1/;

#include "aspeed-g5.dtsi"
#include <dt-bindings/gpio/aspeed-gpio.h>
#include <dt-bindings/i2c/i2c.h>

/ {
	model = "Facebook TiogaPass BMC";
	compatible = "facebook,tiogapass-bmc", "aspeed,ast2500";
	aliases {
		serial0 = &uart1;
		serial4 = &uart5;

		/*
		 * Hardcode the bus number of i2c switches' channels to
		 * avoid breaking the legacy applications.
		 */
		i2c16 = &imux16;
		i2c17 = &imux17;
		i2c18 = &imux18;
		i2c19 = &imux19;
		i2c20 = &imux20;
		i2c21 = &imux21;
		i2c22 = &imux22;
		i2c23 = &imux23;
		i2c24 = &imux24;
		i2c25 = &imux25;
		i2c26 = &imux26;
		i2c27 = &imux27;
		i2c28 = &imux28;
		i2c29 = &imux29;
		i2c30 = &imux30;
		i2c31 = &imux31;
	};
	chosen {
		stdout-path = &uart5;
		bootargs = "console=ttyS4,115200 earlycon";
	};

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

	iio-hwmon {
		compatible = "iio-hwmon";
		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
			      <&adc 4>, <&adc 5>, <&adc 6>, <&adc 7>;
	};

};

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

&spi1 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_spi1_default>;
	flash@0 {
		status = "okay";
		m25p,fast-read;

Annotation

Implementation Notes