doc/README.watchdog

   1 Watchdog driver general info
   2
   3 CONFIG_HW_WATCHDOG
   4         This enables hw_watchdog_reset to be called during various loops,
   5         including waiting for a character on a serial port. But it
   6         does not also call hw_watchdog_init. Boards which want this
   7         enabled must call this function in their board file. This split
   8         is useful because some rom's enable the watchdog when downloading
   9         new code, so it must be serviced, but the board would rather it
  10         was off. And, it cannot always be turned off once on.
  11
  12 CONFIG_WATCHDOG_TIMEOUT_MSECS
  13         Can be used to change the timeout for i.mx31/35/5x/6x.
  14         If not given, will default to maximum timeout. This would
  15         be 128000 msec for i.mx31/35/5x/6x.
  16
  17 CONFIG_AT91SAM9_WATCHDOG
  18         Available for AT91SAM9 to service the watchdog.
  19
  20 CONFIG_FTWDT010_WATCHDOG
  21         Available for FTWDT010 to service the watchdog.
  22
  23 CONFIG_FTWDT010_HW_TIMEOUT
  24         Can be used to change the timeout for FTWDT010.
  25
  26 CONFIG_IMX_WATCHDOG
  27         Available for i.mx31/35/5x/6x to service the watchdog. This is not
  28         automatically set because some boards (vision2) still need to define
  29         their own hw_watchdog_reset routine.
  30
  31 CONFIG_XILINX_TB_WATCHDOG
  32         Available for Xilinx Axi platforms to service timebase watchdog timer.
  33
  34 CONFIG_BFIN_WATCHDOG
  35         Available for bf5xx and bf6xx to service the watchdog.