diff --git a/Documentation/devicetree/bindings/arm/axis.yaml b/Documentation/devicetree/bindings/arm/axis.yaml
index 63e9aca85db7..3062901196a6 100644
--- a/Documentation/devicetree/bindings/arm/axis.yaml
+++ b/Documentation/devicetree/bindings/arm/axis.yaml
@@ -31,6 +31,12 @@ properties:
               - axis,artpec8-grizzly
           - const: axis,artpec8
 
+      - description: Axis ARTPEC-9 SoC board
+        items:
+          - enum:
+              - axis,artpec9-alfred
+          - const: axis,artpec9
+
 additionalProperties: true
 
 ...