1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun%YAML 1.2 3*4882a593Smuzhiyun--- 4*4882a593Smuzhiyun$id: http://devicetree.org/schemas/watchdog/samsung-wdt.yaml# 5*4882a593Smuzhiyun$schema: http://devicetree.org/meta-schemas/core.yaml# 6*4882a593Smuzhiyun 7*4882a593Smuzhiyuntitle: Samsung SoC Watchdog Timer Controller 8*4882a593Smuzhiyun 9*4882a593Smuzhiyunmaintainers: 10*4882a593Smuzhiyun - Krzysztof Kozlowski <krzk@kernel.org> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyundescription: |+ 13*4882a593Smuzhiyun The Samsung's Watchdog controller is used for resuming system operation 14*4882a593Smuzhiyun after a preset amount of time during which the WDT reset event has not 15*4882a593Smuzhiyun occurred. 16*4882a593Smuzhiyun 17*4882a593Smuzhiyunproperties: 18*4882a593Smuzhiyun compatible: 19*4882a593Smuzhiyun enum: 20*4882a593Smuzhiyun - samsung,s3c2410-wdt # for S3C2410 21*4882a593Smuzhiyun - samsung,s3c6410-wdt # for S3C6410, S5PV210 and Exynos4 22*4882a593Smuzhiyun - samsung,exynos5250-wdt # for Exynos5250 23*4882a593Smuzhiyun - samsung,exynos5420-wdt # for Exynos5420 24*4882a593Smuzhiyun - samsung,exynos7-wdt # for Exynos7 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun reg: 27*4882a593Smuzhiyun maxItems: 1 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun clocks: 30*4882a593Smuzhiyun maxItems: 1 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun clock-names: 33*4882a593Smuzhiyun items: 34*4882a593Smuzhiyun - const: watchdog 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun interrupts: 37*4882a593Smuzhiyun maxItems: 1 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun samsung,syscon-phandle: 40*4882a593Smuzhiyun $ref: /schemas/types.yaml#/definitions/phandle 41*4882a593Smuzhiyun description: 42*4882a593Smuzhiyun Phandle to the PMU system controller node (in case of Exynos5250, 43*4882a593Smuzhiyun Exynos5420 and Exynos7). 44*4882a593Smuzhiyun 45*4882a593Smuzhiyunrequired: 46*4882a593Smuzhiyun - compatible 47*4882a593Smuzhiyun - clocks 48*4882a593Smuzhiyun - clock-names 49*4882a593Smuzhiyun - interrupts 50*4882a593Smuzhiyun - reg 51*4882a593Smuzhiyun 52*4882a593SmuzhiyunallOf: 53*4882a593Smuzhiyun - $ref: watchdog.yaml# 54*4882a593Smuzhiyun - if: 55*4882a593Smuzhiyun properties: 56*4882a593Smuzhiyun compatible: 57*4882a593Smuzhiyun contains: 58*4882a593Smuzhiyun enum: 59*4882a593Smuzhiyun - samsung,exynos5250-wdt 60*4882a593Smuzhiyun - samsung,exynos5420-wdt 61*4882a593Smuzhiyun - samsung,exynos7-wdt 62*4882a593Smuzhiyun then: 63*4882a593Smuzhiyun required: 64*4882a593Smuzhiyun - samsung,syscon-phandle 65*4882a593Smuzhiyun 66*4882a593SmuzhiyununevaluatedProperties: false 67*4882a593Smuzhiyun 68*4882a593Smuzhiyunexamples: 69*4882a593Smuzhiyun - | 70*4882a593Smuzhiyun watchdog@101d0000 { 71*4882a593Smuzhiyun compatible = "samsung,exynos5250-wdt"; 72*4882a593Smuzhiyun reg = <0x101D0000 0x100>; 73*4882a593Smuzhiyun interrupts = <0 42 0>; 74*4882a593Smuzhiyun clocks = <&clock 336>; 75*4882a593Smuzhiyun clock-names = "watchdog"; 76*4882a593Smuzhiyun samsung,syscon-phandle = <&pmu_syscon>; 77*4882a593Smuzhiyun }; 78