Kernel-4.18.0-80.el8_samsung-wdt

• 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

  • “samsung,s3c2410-wdt” for S3C2410
  • “samsung,s3c6410-wdt” for S3C6410, S5PV210 and Exynos4
  • “samsung,exynos5250-wdt” for Exynos5250
  • “samsung,exynos5420-wdt” for Exynos5420
  • “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>;
};