linux-kernel - [PATCH v2 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties

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Message-ID: <20251022114527.618908-2-adriana@arista.com>
Date: Wed, 22 Oct 2025 04:45:26 -0700
From: adriana <adriana@...sta.com>
To: krzk@...nel.org,
	robh+dt@...nel.org,
	jdelvare@...e.com,
	frowand.list@...il.com
Cc: linux-arm-kernel@...ts.infradread.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	vasilykh@...sta.com,
	adriana@...sta.com
Subject: [PATCH v2 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties

Signed-off-by: adriana <adriana@...sta.com>
---
 .../bindings/firmware/linux,smbios-table.yaml | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios-table.yaml

diff --git a/Documentation/devicetree/bindings/firmware/linux,smbios-table.yaml b/Documentation/devicetree/bindings/firmware/linux,smbios-table.yaml
new file mode 100644
index 000000000000..7e0e767fcb80
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/linux,smbios-table.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2025 Arista Networks
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/linux,smbios-table.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Memory location for SMBIOS table 
+
+description: |
+  These properties are used in the /chosen node to pass the physical address
+  of SMBIOS (System Management BIOS) or DMI (Desktop Management Interface)
+  tables from firmware to the kernel. This is typically used on non-EFI
+  platforms like ARM/ARM64.
+  
+maintainers:
+  - Adriana Nicolae <adriana@...sta.com>
+  - Rob Herring <robh+dt@...nel.org>
+
+properties:
+  linux,smbios-table:
+    $ref: /schemas/types.yaml#/definitions/uint64
+    description:
+      The 64-bit physical address of the SMBIOS (v2) entry point structure.
+
+  linux,smbios3-table:
+    $ref: /schemas/types.yaml#/definitions/uint64
+    description:
+      The 64-bit physical address of the SMBIOSv3 entry point structure.
+      If both this and 'linux,smbios-table' are present, the kernel
+      will attempt to use this SMBIOSv3 table first.
+
+additionalProperties: true
-- 
2.51.0