* Samsung's Watchdog Timer Controller
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The Samsung's Watchdog controller is used for resuming system operation
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after a preset amount of time during which the WDT reset event has not
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occurred.
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Required properties:
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- compatible : should be one among the following
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- "samsung,s3c2410-wdt" for S3C2410
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- "samsung,s3c6410-wdt" for S3C6410, S5PV210 and Exynos4
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- "samsung,exynos5250-wdt" for Exynos5250
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- "samsung,exynos5420-wdt" for Exynos5420
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- "samsung,exynos7-wdt" for Exynos7
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- reg : base physical address of the controller and length of memory mapped
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region.
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- interrupts : interrupt number to the cpu.
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- samsung,syscon-phandle : reference to syscon node (This property required only
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in case of compatible being "samsung,exynos5250-wdt" or "samsung,exynos5420-wdt".
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In case of Exynos5250 and 5420 this property points to syscon node holding the PMU
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base address)
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Optional properties:
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- timeout-sec : contains the watchdog timeout in seconds.
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Example:
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watchdog@101d0000 {
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compatible = "samsung,exynos5250-wdt";
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reg = <0x101D0000 0x100>;
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interrupts = <0 42 0>;
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clocks = <&clock 336>;
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clock-names = "watchdog";
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samsung,syscon-phandle = <&pmu_syscon>;
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};
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