diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml b/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
index f4e930d8cc26..cd5e5f88d8b5 100644
--- a/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
@@ -30,6 +30,14 @@ properties:
           - const: marvell,armada385
           - const: marvell,armada380
 
+      - description:
+          Kobol Armada 388 based Helios-4 NAS.
+        items:
+          - const: kobol,helios4
+          - const: marvell,armada388
+          - const: marvell,armada385
+          - const: marvell,armada380
+
       - description:
           Marvell Armada 388 Development Boards.
         items: