1*4882a593SmuzhiyunWatchdog driver general info 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunCONFIG_HW_WATCHDOG 4*4882a593Smuzhiyun This enables hw_watchdog_reset to be called during various loops, 5*4882a593Smuzhiyun including waiting for a character on a serial port. But it 6*4882a593Smuzhiyun does not also call hw_watchdog_init. Boards which want this 7*4882a593Smuzhiyun enabled must call this function in their board file. This split 8*4882a593Smuzhiyun is useful because some rom's enable the watchdog when downloading 9*4882a593Smuzhiyun new code, so it must be serviced, but the board would rather it 10*4882a593Smuzhiyun was off. And, it cannot always be turned off once on. 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunCONFIG_WATCHDOG_TIMEOUT_MSECS 13*4882a593Smuzhiyun Can be used to change the timeout for i.mx31/35/5x/6x. 14*4882a593Smuzhiyun If not given, will default to maximum timeout. This would 15*4882a593Smuzhiyun be 128000 msec for i.mx31/35/5x/6x. 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunCONFIG_AT91SAM9_WATCHDOG 18*4882a593Smuzhiyun Available for AT91SAM9 to service the watchdog. 19*4882a593Smuzhiyun 20*4882a593SmuzhiyunCONFIG_FTWDT010_WATCHDOG 21*4882a593Smuzhiyun Available for FTWDT010 to service the watchdog. 22*4882a593Smuzhiyun 23*4882a593SmuzhiyunCONFIG_FTWDT010_HW_TIMEOUT 24*4882a593Smuzhiyun Can be used to change the timeout for FTWDT010. 25*4882a593Smuzhiyun 26*4882a593SmuzhiyunCONFIG_IMX_WATCHDOG 27*4882a593Smuzhiyun Available for i.mx31/35/5x/6x to service the watchdog. This is not 28*4882a593Smuzhiyun automatically set because some boards (vision2) still need to define 29*4882a593Smuzhiyun their own hw_watchdog_reset routine. 30*4882a593Smuzhiyun TODO: vision2 is removed now, so perhaps this can be changed. 31*4882a593Smuzhiyun 32*4882a593SmuzhiyunCONFIG_XILINX_TB_WATCHDOG 33*4882a593Smuzhiyun Available for Xilinx Axi platforms to service timebase watchdog timer. 34*4882a593Smuzhiyun 35*4882a593SmuzhiyunCONFIG_BFIN_WATCHDOG 36*4882a593Smuzhiyun Available for bf5xx and bf6xx to service the watchdog. 37