doc: describe generation of SMBIOS table
SMBIOS is not x86 specific. So we should have an architecture independent
page describing it.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/doc/develop/smbios.rst b/doc/develop/smbios.rst
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+.. SPDX-License-Identifier: GPL-2.0+
+
+SMBIOS tables
+=============
+
+The System Management BIOS (SMBIOS) table is used to deliver management
+information from the firmware to the operating system. The content is
+standardized in [1]_.
+
+In Linux you can use the dmidecode command to view the contents of the SMBIOS
+table.
+
+When booting via UEFI the SMBIOS table is transferred as an UEFI configuration
+table to the operating system.
+
+To generate SMBIOS tables in U-Boot, the CONFIG_GENERATE_SMBIOS_TABLE option
+must be enabled. The easiest way to provide the values to use is via the device
+tree. For details see
+:download:`smbios.txt <../device-tree-bindings/sysinfo/smbios.txt>`.
+
+.. [1] `System Management BIOS (SMBIOS) Reference, version 3.5
+ <https://www.dmtf.org/content/dmtf-releases-smbios-35>`_