Documentation/devicetree/bindings/watchdog/alphascale,asm9260-wdt.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/alphascale,asm9260-wdt.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Alphascale asm9260 Watchdog timer
   8
   9 allOf:
  10   - $ref: watchdog.yaml#
  11
  12 maintainers:
  13   - Oleksij Rempel <linux@rempel-privat.de>
  14
  15 properties:
  16   compatible:
  17     const: alphascale,asm9260-wdt
  18
  19   reg:
  20     maxItems: 1
  21
  22   clocks:
  23     items:
  24       - description: source clock, used for tick counter
  25       - description: ahb gate
  26
  27   clock-names:
  28     items:
  29       - const: mod
  30       - const: ahb
  31
  32   interrupts:
  33     maxItems: 1
  34
  35   resets:
  36     maxItems: 1
  37
  38   reset-names:
  39     items:
  40       - const: wdt_rst
  41
  42   alphascale,mode:
  43     description: |
  44       Specifies the reset mode of operation. If set to sw, then reset is handled
  45       via interrupt request, if set to debug, then it does nothing and logs.
  46     $ref: /schemas/types.yaml#/definitions/string
  47     enum: [hw, sw, debug]
  48     default: hw
  49
  50 required:
  51   - compatible
  52   - reg
  53   - clocks
  54   - clock-names
  55   - interrupts
  56
  57 unevaluatedProperties: false
  58
  59 examples:
  60   - |
  61     #include <dt-bindings/clock/alphascale,asm9260.h>
  62     watchdog0: watchdog@80048000 {
  63       compatible = "alphascale,asm9260-wdt";
  64       reg = <0x80048000 0x10>;
  65       clocks = <&acc CLKID_SYS_WDT>, <&acc CLKID_AHB_WDT>;
  66       clock-names = "mod", "ahb";
  67       interrupts = <55>;
  68       timeout-sec = <30>;
  69       alphascale,mode = "hw";
  70     };