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

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

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-elbert.dts
Extension
.dts
Size
3327 bytes
Lines
216
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 Facebook Inc.

/dts-v1/;

#include "ast2600-facebook-netbmc-common.dtsi"

/ {
	model = "Facebook Elbert BMC";
	compatible = "facebook,elbert-bmc", "aspeed,ast2600";

	aliases {
		serial0 = &uart5;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;

		/*
		 * 8 child channels of PCA9548 2-0075.
		 */
		i2c16 = &imux16;
		i2c17 = &imux17;
		i2c18 = &imux18;
		i2c19 = &imux19;
		i2c20 = &imux20;
		i2c21 = &imux21;
		i2c22 = &imux22;
		i2c23 = &imux23;

		/*
		 * 8 child channels of PCA9548 5-0075.
		 */
		i2c24 = &imux24;
		i2c25 = &imux25;
		i2c26 = &imux26;
		i2c27 = &imux27;
		i2c28 = &imux28;
		i2c29 = &imux29;
		i2c30 = &imux30;
		i2c31 = &imux31;
	};

	chosen {
		stdout-path = &uart5;
	};

	spi_gpio: spi {
		num-chipselects = <1>;
		cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>;
	};
};

&lpc_ctrl {
	status = "okay";
};

&kcs2 {
	status = "okay";
	aspeed,lpc-io-reg = <0xca8>;
};

&kcs3 {
	status = "okay";
	aspeed,lpc-io-reg = <0xca2>;
};

&i2c2 {
	i2c-mux@75 {
		compatible = "nxp,pca9548";
		#address-cells = <1>;

Annotation

Implementation Notes