diff options
| author | Srinivas Neeli <srinivas.neeli@amd.com> | 2023-04-20 16:12:30 +0530 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2023-06-26 14:30:06 +0200 |
| commit | 12984cea1b8c54104f8ac7f5609dfcc0752ad741 (patch) | |
| tree | 8423bdd7add5df585cf282dbf5edcf4b8f364f99 /drivers/watchdog/Kconfig | |
| parent | be0d0ab1c704c8f93ee6c6d4b13a1e54ae927e3a (diff) | |
watchdog: xilinx_wwdt: Add Versal window watchdog support
Versal watchdog driver uses window watchdog mode. Window watchdog
timer(WWDT) contains closed(first) and open(second) window with
32 bit width. Write to the watchdog timer within predefined window
periods of time. This means a period that is not too soon and a
period that is not too late. The WWDT has to be restarted within
the open window time. If software tries to restart WWDT outside of
the open window time period, it generates a reset.
Signed-off-by: Srinivas Neeli <srinivas.neeli@amd.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20230420104231.2243079-4-srinivas.neeli@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog/Kconfig')
| -rw-r--r-- | drivers/watchdog/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index f22138709bf5..ee97d89dfc11 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -304,6 +304,24 @@ config XILINX_WATCHDOG To compile this driver as a module, choose M here: the module will be called of_xilinx_wdt. +config XILINX_WINDOW_WATCHDOG + tristate "Xilinx window watchdog timer" + depends on HAS_IOMEM + depends on ARM64 + select WATCHDOG_CORE + help + Window watchdog driver for the versal_wwdt IP core. + Window watchdog timer(WWDT) contains closed(first) and + open(second) window with 32 bit width. Write to the watchdog + timer within predefined window periods of time. This means + a period that is not too soon and a period that is not too + late. The WWDT has to be restarted within the open window time. + If software tries to restart WWDT outside of the open window + time period, it generates a reset. + + To compile this driver as a module, choose M here: the + module will be called xilinx_wwdt. + config ZIIRAVE_WATCHDOG tristate "Zodiac RAVE Watchdog Timer" depends on I2C |