bindings/watchdog/snps%2Cdw-wdt.yaml

1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/watchdog/snps,dw-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Synopsys Designware Watchdog Timer
10   - $ref: "watchdog.yaml#"
13   - Jamie Iles <jamie@jamieiles.com>
17     const: snps,dw-wdt
23     description: DW Watchdog pre-timeout interrupt
29       - description: Watchdog timer reference clock
30       - description: APB3 interface clock
32   clock-names:
35       - const: tclk
36       - const: pclk
39     description: Phandle to the DW Watchdog reset lane
42   snps,watchdog-tops:
43     $ref: /schemas/types.yaml#/definitions/uint32-array
45       DW APB Watchdog custom timer intervals - Timeout Period ranges (TOPs).
46       Each TOP is a number loaded into the watchdog counter at the moment of
47       the timer restart. The counter decrementing happens each tick of the
49       the timer expiration intervals supported by the DW APB Watchdog. Note
50       DW APB Watchdog IP-core might be synthesized with fixed TOP values,
62   - compatible
63   - reg
64   - clocks
67   - |
68     watchdog@ffd02000 {
69       compatible = "snps,dw-wdt";
76   - |
77     watchdog@ffd02000 {
78       compatible = "snps,dw-wdt";
82       clock-names = "tclk";
83       snps,watchdog-tops = <0x000000FF 0x000001FF 0x000003FF