hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
57 lines
1.2 KiB
YAML
57 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/timer/arm,twd-timer.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: ARM Timer-Watchdog Timer
|
|
|
|
maintainers:
|
|
- Rob Herring <robh@kernel.org>
|
|
|
|
description:
|
|
ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
|
|
Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
|
|
and watchdog.
|
|
|
|
The TWD is usually attached to a GIC to deliver its two per-processor
|
|
interrupts.
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- arm,cortex-a9-twd-timer
|
|
- arm,cortex-a5-twd-timer
|
|
- arm,arm11mp-twd-timer
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
maxItems: 1
|
|
|
|
always-on:
|
|
description:
|
|
If present, the timer is powered through an always-on power domain,
|
|
therefore it never loses context.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
|
|
timer@2c000600 {
|
|
compatible = "arm,arm11mp-twd-timer";
|
|
reg = <0x2c000600 0x20>;
|
|
interrupts = <GIC_PPI 13 0xf01>;
|
|
};
|