51 lines
1.0 KiB
YAML
51 lines
1.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/watchdog/arm,twd-wdt.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ARM Timer-Watchdog Watchdog
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maintainers:
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- Rob Herring <robh@kernel.org>
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description:
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ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
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Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
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and watchdog.
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The TWD is usually attached to a GIC to deliver its two per-processor
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interrupts.
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properties:
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compatible:
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enum:
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- arm,cortex-a9-twd-wdt
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- arm,cortex-a5-twd-wdt
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- arm,arm11mp-twd-wdt
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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watchdog@2c000620 {
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compatible = "arm,arm11mp-twd-wdt";
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reg = <0x2c000620 0x20>;
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interrupts = <GIC_PPI 14 0xf01>;
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};
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