51 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/watchdog/xlnx,versal-wwdt.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Xilinx Versal window watchdog timer controller8 9maintainers:10 - Neeli Srinivas <srinivas.neeli@amd.com>11 12description:13 Versal watchdog intellectual property uses window watchdog mode.14 Window watchdog timer(WWDT) contains closed(first) and open(second)15 window with 32 bit width. Write to the watchdog timer within16 predefined window periods of time. This means a period that is not17 too soon and a period that is not too late. The WWDT has to be18 restarted within the open window time. If software tries to restart19 WWDT outside of the open window time period, it generates a reset.20 21allOf:22 - $ref: watchdog.yaml#23 24properties:25 compatible:26 enum:27 - xlnx,versal-wwdt28 29 reg:30 maxItems: 131 32 clocks:33 maxItems: 134 35required:36 - compatible37 - reg38 - clocks39 40unevaluatedProperties: false41 42examples:43 - |44 watchdog@fd4d0000 {45 compatible = "xlnx,versal-wwdt";46 reg = <0xfd4d0000 0x10000>;47 clocks = <&clock25>;48 timeout-sec = <30>;49 };50...51