atmel,sama5d4-wdt.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/watchdog/atmel,sama5d4-wdt.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Atmel SAMA5D4 Watchdog Timer (WDT) Controller
    8 
    9 maintainers:
   10   - Eugen Hristev <eugen.hristev@microchip.com>
   11 
   12 allOf:
   13   - $ref: "watchdog.yaml#"
   14 
   15 properties:
   16   compatible:
   17     enum:
   18       - atmel,sama5d4-wdt
   19       - microchip,sam9x60-wdt
   20       - microchip,sama7g5-wdt
   21 
   22   reg:
   23     maxItems: 1
   24 
   25   interrupts:
   26     maxItems: 1
   27 
   28   atmel,watchdog-type:
   29     $ref: /schemas/types.yaml#/definitions/string
   30     description: should be hardware or software.
   31     oneOf:
   32       - description:
   33           Enable watchdog fault reset. A watchdog fault triggers
   34           watchdog reset.
   35         const: hardware
   36       - description:
   37           Enable watchdog fault interrupt. A watchdog fault asserts
   38           watchdog interrupt.
   39         const: software
   40     default: hardware
   41 
   42   atmel,idle-halt:
   43     $ref: /schemas/types.yaml#/definitions/flag
   44     description: |
   45       present if you want to stop the watchdog when the CPU is in idle state.
   46       CAUTION: This property should be used with care, it actually makes the
   47       watchdog not counting when the CPU is in idle state, therefore the
   48       watchdog reset time depends on mean CPU usage and will not reset at all
   49       if the CPU stop working while it is in idle state, which is probably
   50       not what you want.
   51 
   52   atmel,dbg-halt:
   53     $ref: /schemas/types.yaml#/definitions/flag
   54     description: |
   55       present if you want to stop the watchdog when the CPU is in debug state.
   56 
   57 required:
   58   - compatible
   59   - reg
   60 
   61 unevaluatedProperties: false
   62 
   63 examples:
   64   - |
   65     #include <dt-bindings/interrupt-controller/irq.h>
   66 
   67     watchdog@fc068640 {
   68       compatible = "atmel,sama5d4-wdt";
   69       reg = <0xfc068640 0x10>;
   70       interrupts = <4 IRQ_TYPE_LEVEL_HIGH 5>;
   71       timeout-sec = <10>;
   72       atmel,watchdog-type = "hardware";
   73       atmel,dbg-halt;
   74       atmel,idle-halt;
   75     };
   76 
   77 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/watchdog/atmel,sama5d4-wdt.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/watchdog/atmel,sama5d4-wdt.yaml