Sven Peter 9e9652862a dt-bindings: watchdog: Add Apple Watchdog
Apple SoCs come with a simple embedded watchdog. This watchdog is also
required in order to reset the SoC.

Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-12-07 13:04:02 +09:00

53 lines
946 B
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Apple SoC Watchdog
allOf:
- $ref: "watchdog.yaml#"
maintainers:
- Sven Peter <sven@svenpeter.dev>
properties:
compatible:
items:
- enum:
- apple,t8103-wdt
- apple,t6000-wdt
- const: apple,wdt
reg:
maxItems: 1
clocks:
maxItems: 1
interrupts:
maxItems: 1
required:
- compatible
- reg
- clocks
- interrupts
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/apple-aic.h>
#include <dt-bindings/interrupt-controller/irq.h>
wdt: watchdog@50000000 {
compatible = "apple,t8103-wdt", "apple,wdt";
reg = <0x50000000 0x4000>;
clocks = <&clk>;
interrupts = <AIC_IRQ 123 IRQ_TYPE_LEVEL_HIGH>;
};
...