README.watchdog 1.2 KB

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  1. Watchdog driver general info
  2. CONFIG_HW_WATCHDOG
  3. This enables hw_watchdog_reset to be called during various loops,
  4. including waiting for a character on a serial port. But it
  5. does not also call hw_watchdog_init. Boards which want this
  6. enabled must call this function in their board file. This split
  7. is useful because some rom's enable the watchdog when downloading
  8. new code, so it must be serviced, but the board would rather it
  9. was off. And, it cannot always be turned off once on.
  10. CONFIG_WATCHDOG_TIMEOUT_MSECS
  11. Can be used to change the timeout for i.mx31/35/5x/6x.
  12. If not given, will default to maximum timeout. This would
  13. be 128000 msec for i.mx31/35/5x/6x.
  14. CONFIG_WDT_AT91
  15. Available for AT91SAM9 to service the watchdog.
  16. CONFIG_FTWDT010_WATCHDOG
  17. Available for FTWDT010 to service the watchdog.
  18. CONFIG_FTWDT010_HW_TIMEOUT
  19. Can be used to change the timeout for FTWDT010.
  20. CONFIG_IMX_WATCHDOG
  21. Available for i.mx31/35/5x/6x to service the watchdog. This is not
  22. automatically set because some boards (vision2) still need to define
  23. their own hw_watchdog_reset routine.
  24. TODO: vision2 is removed now, so perhaps this can be changed.
  25. CONFIG_XILINX_TB_WATCHDOG
  26. Available for Xilinx Axi platforms to service timebase watchdog timer.