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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /Documentation/devicetree/bindings/watchdog/samsung-wdt.txt |
Initial import
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog/samsung-wdt.txt')
-rw-r--r-- | Documentation/devicetree/bindings/watchdog/samsung-wdt.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt new file mode 100644 index 000000000..8f3d96af8 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt @@ -0,0 +1,34 @@ +* Samsung's Watchdog Timer Controller + +The Samsung's Watchdog controller is used for resuming system operation +after a preset amount of time during which the WDT reset event has not +occurred. + +Required properties: +- compatible : should be one among the following + (a) "samsung,s3c2410-wdt" for Exynos4 and previous SoCs + (b) "samsung,exynos5250-wdt" for Exynos5250 + (c) "samsung,exynos5420-wdt" for Exynos5420 + (c) "samsung,exynos7-wdt" for Exynos7 + +- reg : base physical address of the controller and length of memory mapped + region. +- interrupts : interrupt number to the cpu. +- samsung,syscon-phandle : reference to syscon node (This property required only + in case of compatible being "samsung,exynos5250-wdt" or "samsung,exynos5420-wdt". + In case of Exynos5250 and 5420 this property points to syscon node holding the PMU + base address) + +Optional properties: +- timeout-sec : contains the watchdog timeout in seconds. + +Example: + +watchdog@101D0000 { + compatible = "samsung,exynos5250-wdt"; + reg = <0x101D0000 0x100>; + interrupts = <0 42 0>; + clocks = <&clock 336>; + clock-names = "watchdog"; + samsung,syscon-phandle = <&pmu_syscon>; +}; |