--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/atmel,at91rm9200-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel AT91RM9200 System Timer Watchdog
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre@microchip.com>
+
+allOf:
+  - $ref: watchdog.yaml#
+
+properties:
+  compatible:
+    const: atmel,at91rm9200-wdt
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    watchdog@fffffd00 {
+        compatible = "atmel,at91rm9200-wdt";
+        reg = <0xfffffd00 0x10>;
+    };
 
+++ /dev/null
-Atmel AT91RM9200 System Timer Watchdog
-
-Required properties:
-- compatible: must be "atmel,at91sam9260-wdt".
-
-Example:
-       watchdog@fffffd00 {
-               compatible = "atmel,at91rm9200-wdt";
-       };