doc/device-tree-bindings/sysinfo/smbios.txt

SMBIOS sysinfo information
==========================

This binding allows the values for the SMBIOS tables to be specified in the
devicetree, as below.

Required properties:

  - compatible: "u-boot,smbios" or any other string depending on your board

This driver allows providing board-specific features such as power control
GPIOs. In addition, the SMBIOS values can be specified in the device tree,
as below:

An optional 'smbios' subnode can be used to provide these properties. Within
that, the properties are broken down by table type, as in the System Management
BIOS (Basic Input/Output System) Specification.

Available subnodes for each table type are:

  - 1 : system
  - 2 : baseboard
  - 3 : chassis

Within each subnode the following tables are recognised:

"system" subnode optional properties:

  - manufacturer: Product manufacturer for system
  - product:      Product name
  - version:      Product version string
  - serial:       Serial number for system (note that this can be overridden by
                      the serial# environment variable)
  - sku:          Product SKU (Stock-Keeping Unit)
  - family:       Product family

"baseboard" subnode optional properties:

  - manufacturer: Product manufacturer for baseboard
  - product:      Product name
  - asset-tag:    Asset tag for the motherboard, sometimes used in organisations
                      to track devices

"chassis" subnode optional properties:

  - manufacturer: Product manufacturer for chassis


Example:

sysinfo {
	compatible = "sandbox,sysinfo-sandbox";

	smbios {
		/* Type 1 table */
		system {
			manufacturer = "Google";
			product = "Coral";
			version = "rev2";
			serial = "123456789";
			sku = "sku3";
			family = "Google_Coral";
		};

		/* Type 2 table */
		baseboard {
			manufacturer = "Google";
			product = "Coral";
			asset-tag = "ABC123";
		};

		/* Type 3 table */
		chassis {
			manufacturer = "Google";
		};
	};
};