1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/watchdog/at
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Atmel SAMA5D4 Watchdog Timer (WDT) Cont
8
9 maintainers:
10 - Eugen Hristev <eugen.hristev@microchip.com>
11
12 allOf:
13 - $ref: watchdog.yaml#
14
15 properties:
16 compatible:
17 oneOf:
18 - enum:
19 - atmel,sama5d4-wdt
20 - microchip,sam9x60-wdt
21 - microchip,sama7g5-wdt
22 - items:
23 - const: microchip,sam9x7-wdt
24 - const: microchip,sam9x60-wdt
25
26 reg:
27 maxItems: 1
28
29 interrupts:
30 maxItems: 1
31
32 atmel,watchdog-type:
33 $ref: /schemas/types.yaml#/definitions/str
34 description: should be hardware or softwar
35 oneOf:
36 - description:
37 Enable watchdog fault reset. A watch
38 watchdog reset.
39 const: hardware
40 - description:
41 Enable watchdog fault interrupt. A w
42 watchdog interrupt.
43 const: software
44 default: hardware
45
46 atmel,idle-halt:
47 $ref: /schemas/types.yaml#/definitions/fla
48 description: |
49 present if you want to stop the watchdog
50 CAUTION: This property should be used wi
51 watchdog not counting when the CPU is in
52 watchdog reset time depends on mean CPU
53 if the CPU stop working while it is in i
54 not what you want.
55
56 atmel,dbg-halt:
57 $ref: /schemas/types.yaml#/definitions/fla
58 description: |
59 present if you want to stop the watchdog
60
61 required:
62 - compatible
63 - reg
64
65 unevaluatedProperties: false
66
67 examples:
68 - |
69 #include <dt-bindings/interrupt-controller
70
71 watchdog@fc068640 {
72 compatible = "atmel,sama5d4-wdt";
73 reg = <0xfc068640 0x10>;
74 interrupts = <4 IRQ_TYPE_LEVEL_HIGH 5>
75 timeout-sec = <10>;
76 atmel,watchdog-type = "hardware";
77 atmel,dbg-halt;
78 atmel,idle-halt;
79 };
80
81 ...
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