diff --git a/Documentation/devicetree/bindings/riscv/sophgo.yaml b/Documentation/devicetree/bindings/riscv/sophgo.yaml
index 8adb5f39ca53..86748c5390be 100644
--- a/Documentation/devicetree/bindings/riscv/sophgo.yaml
+++ b/Documentation/devicetree/bindings/riscv/sophgo.yaml
@@ -18,6 +18,10 @@ properties:
     const: '/'
   compatible:
     oneOf:
+      - items:
+          - enum:
+              - milkv,duo
+          - const: sophgo,cv1800b
       - items:
           - enum:
               - milkv,pioneer