diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
index 7b512be280ce..3584f0ec263f 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
@@ -35,6 +35,16 @@ properties:
               - atmel,at91sam9x60
           - const: atmel,at91sam9
 
+      - items:
+          - enum:
+              - overkiz,kizboxmini-base # Overkiz kizbox Mini Base Board
+              - overkiz,kizboxmini-mb   # Overkiz kizbox Mini Mother Board
+              - overkiz,kizboxmini-rd   # Overkiz kizbox Mini RailDIN
+              - overkiz,smartkiz        # Overkiz SmartKiz Board
+          - const: atmel,at91sam9g25
+          - const: atmel,at91sam9x5
+          - const: atmel,at91sam9
+
       - items:
           - enum:
               - atmel,at91sam9g15