1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/watchdog/arm,twd-wdt.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: ARM Timer-Watchdog Watchdog 8 9maintainers: 10 - Rob Herring <robh@kernel.org> 11 12description: 13 ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core 14 Timer-Watchdog (aka TWD), which provides both a per-cpu local timer 15 and watchdog. 16 17 The TWD is usually attached to a GIC to deliver its two per-processor 18 interrupts. 19 20properties: 21 compatible: 22 enum: 23 - arm,cortex-a9-twd-wdt 24 - arm,cortex-a5-twd-wdt 25 - arm,arm11mp-twd-wdt 26 27 reg: 28 maxItems: 1 29 30 interrupts: 31 maxItems: 1 32 33 clocks: 34 maxItems: 1 35 36required: 37 - compatible 38 - reg 39 40additionalProperties: false 41 42examples: 43 - | 44 #include <dt-bindings/interrupt-controller/arm-gic.h> 45 46 watchdog@2c000620 { 47 compatible = "arm,arm11mp-twd-wdt"; 48 reg = <0x2c000620 0x20>; 49 interrupts = <GIC_PPI 14 0xf01>; 50 }; 51