diff --git a/Documentation/devicetree/bindings/serial/8250.yaml b/Documentation/devicetree/bindings/serial/8250.yaml
index 692aa0550..8d7b1e706 100644
--- a/Documentation/devicetree/bindings/serial/8250.yaml
+++ b/Documentation/devicetree/bindings/serial/8250.yaml
@@ -82,6 +82,8 @@ properties:
               - nxp,lpc1850-uart
               - opencores,uart16550-rtlsvn105
               - ti,da830-uart
+              - loongson,ls2k0500-uart
+              - loongson,ls2k1500-uart
           - const: ns16550a
       - items:
           - enum:
@@ -123,6 +125,18 @@ properties:
               - nvidia,tegra194-uart
               - nvidia,tegra234-uart
           - const: nvidia,tegra20-uart
+      - items:
+          - enum:
+              - loongson,ls2k1000-uart
+          - const: loongson,ls2k0500-uart
+          - const: ns16550a
+      - items:
+          - enum:
+              - loongson,ls3a5000-uart
+              - loongson,ls3a6000-uart
+              - loongson,ls2k2000-uart
+          - const: loongson,ls2k1500-uart
+          - const: ns16550a
 
   reg:
     maxItems: 1