63 lines
1.3 KiB
YAML
63 lines
1.3 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/watchdog/cdns,wdt-r1p2.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Cadence watchdog timer controller
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maintainers:
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- Neeli Srinivas <srinivas.neeli@amd.com>
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description:
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The cadence watchdog timer is used to detect and recover from
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system malfunctions. This watchdog contains 24 bit counter and
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a programmable reset period. The timeout period varies from 1 ms
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to 30 seconds while using a 100Mhz clock.
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allOf:
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- $ref: watchdog.yaml#
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properties:
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compatible:
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enum:
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- cdns,wdt-r1p2
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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interrupts:
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maxItems: 1
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reset-on-timeout:
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type: boolean
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description: |
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If this property exists, then a reset is done when watchdog
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times out.
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required:
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- compatible
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- reg
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- clocks
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- interrupts
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unevaluatedProperties: 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@f8005000 {
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compatible = "cdns,wdt-r1p2";
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reg = <0xf8005000 0x1000>;
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clocks = <&clkc 45>;
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interrupt-parent = <&intc>;
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interrupts = <GIC_SPI 9 IRQ_TYPE_EDGE_RISING>;
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reset-on-timeout;
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timeout-sec = <10>;
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};
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...
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