| * 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>; |
| }; |
