Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/watchdog/arm,sbsa-gwdt.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: SBSA (Server Base System Architecture) Generic Watchdog
   8
   9 maintainers:
  10   - Fu Wei <fu.wei@linaro.org>
  11
  12 description: |
  13   The SBSA Generic Watchdog Timer is used to force a reset of the system after
  14   two stages of timeout have elapsed. A detailed definition of the watchdog
  15   timer can be found in the ARM document: ARM-DEN-0029 - Server Base System
  16   Architecture (SBSA)
  17
  18 allOf:
  19   - $ref: watchdog.yaml#
  20
  21 properties:
  22   compatible:
  23     const: arm,sbsa-gwdt
  24
  25   reg:
  26     items:
  27       - description: Watchdog control frame
  28       - description: Refresh frame
  29
  30   interrupts:
  31     description: The Watchdog Signal 0 (WS0) SPI (Shared Peripheral Interrupt)
  32     maxItems: 1
  33
  34 required:
  35   - compatible
  36   - reg
  37   - interrupts
  38
  39 unevaluatedProperties: false
  40
  41 examples:
  42   - |
  43
  44     watchdog@2a440000 {
  45         compatible = "arm,sbsa-gwdt";
  46         reg = <0x2a440000 0x1000>,
  47               <0x2a450000 0x1000>;
  48         interrupts = <0 27 4>;
  49         timeout-sec = <30>;
  50     };
  51 ...