| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | watchdog@2a440000 { |
| 44 | compatible = "arm,sbsa-gwdt"; |
| 45 | reg = <0x2a440000 0x1000>, |
| 46 | <0x2a450000 0x1000>; |
| 47 | interrupts = <0 27 4>; |
| 48 | timeout-sec = <30>; |
| 49 | }; |
| 50 | ... |