1 # SPDX-License-Identifier: GPL-2.0
4 $id: http://devicetree.org/schemas/watchdog/samsung-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Samsung SoC Watchdog Timer Controller
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 The Samsung's Watchdog controller is used for resuming system operation
14 after a preset amount of time during which the WDT reset event has not
20 - samsung,s3c2410-wdt # for S3C2410
21 - samsung,s3c6410-wdt # for S3C6410, S5PV210 and Exynos4
22 - samsung,exynos5250-wdt # for Exynos5250
23 - samsung,exynos5420-wdt # for Exynos5420
24 - samsung,exynos7-wdt # for Exynos7
25 - samsung,exynos850-wdt # for Exynos850
26 - samsung,exynosautov9-wdt # for Exynosautov9
42 samsung,cluster-index:
43 $ref: /schemas/types.yaml#/definitions/uint32
45 Index of CPU cluster on which watchdog is running (in case of Exynos850)
47 samsung,syscon-phandle:
48 $ref: /schemas/types.yaml#/definitions/phandle
50 Phandle to the PMU system controller node (in case of Exynos5250,
51 Exynos5420, Exynos7 and Exynos850).
61 - $ref: watchdog.yaml#
67 - samsung,exynos5250-wdt
68 - samsung,exynos5420-wdt
70 - samsung,exynos850-wdt
71 - samsung,exynosautov9-wdt
74 - samsung,syscon-phandle
80 - samsung,exynos850-wdt
81 - samsung,exynosautov9-wdt
86 - description: Bus clock, used for register interface
87 - description: Source clock (driving watchdog counter)
92 samsung,cluster-index:
95 - samsung,cluster-index
100 - description: Bus clock, which is also a source clock
104 samsung,cluster-index: false
106 unevaluatedProperties: false
111 compatible = "samsung,exynos5250-wdt";
112 reg = <0x101D0000 0x100>;
113 interrupts = <0 42 0>;
114 clocks = <&clock 336>;
115 clock-names = "watchdog";
116 samsung,syscon-phandle = <&pmu_syscon>;