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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/xlnx,versal-wwdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Versal window watchdog timer controller
+
+maintainers:
+ - Neeli Srinivas <srinivas.neeli@amd.com>
+
+description:
+ Versal watchdog intellectual property uses window watchdog mode.
+ Window watchdog timer(WWDT) contains closed(first) and open(second)
+ window with 32 bit width. Write to the watchdog timer within
+ predefined window periods of time. This means a period that is not
+ too soon and a period that is not too late. The WWDT has to be
+ restarted within the open window time. If software tries to restart
+ WWDT outside of the open window time period, it generates a reset.
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ enum:
+ - xlnx,versal-wwdt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ watchdog@fd4d0000 {
+ compatible = "xlnx,versal-wwdt";
+ reg = <0xfd4d0000 0x10000>;
+ clocks = <&clock25>;
+ timeout-sec = <30>;
+ };
+...