[PATCH] dt-bindings: mips: lantiq: Document Lantiq SoC dt bindings

[Aleksander Jan Bajkowski <olek2@wp.pl>]

Document the legacy Lantiq device tree bindings.
Compatible strings for xRX100 (ar9) and newer SoCs
should be renamed and will be added later.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
---
 .../devicetree/bindings/mips/lantiq/soc.yaml  | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mips/lantiq/soc.yaml

diff --git a/Documentation/devicetree/bindings/mips/lantiq/soc.yaml b/Documentation/devicetree/bindings/mips/lantiq/soc.yaml
new file mode 100644
index 000000000000..90e8148b111b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/soc.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mips/lantiq/soc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lantiq SoC based Platform
+
+maintainers:
+  - Aleksander Jan Bajkowski <olek2@wp.pl>
+
+description:
+  Devices with a Lantiq CPU shall have the following properties.
+
+properties:
+  $nodename:
+    const: "/"
+  compatible:
+    oneOf:
+      - description: Boards with Lantiq Amazon-SE SoC
+        items:
+          - const: lantiq,ase
+
+      - description: Boards with Lantiq Danube SoC
+        items:
+          - const: lantiq,danube
+
+      - description: Boards with Lantiq Falcon SoC
+        items:
+          - const: lantiq,falcon
+
+      - description: Boards with Lantiq Twinpass SoC
+        items:
+          - const: lantiq,twinpass
+
+additionalProperties: true
+
+...
-- 
2.30.2