Hi, > > Does barebox have a standard API to trigger and program a watchdog ? > > No, we do not have this atm. > > Are you looking for real watchdog support, i.e. 'reset watchdog when my > system is in a sane state' or do you have a piece of hardware on which you > have to reset the watchdog frequently because you can't disable it in > software? > > For the first case I propose a 'watchdog' command with an underlying > reset_watchdog() function which resets the watchdog. IMHO the use of 'reset' with watchdogs is ambiguous. Typically, the primary use is to _prevent_ the watchdog from attacking you (the system resetting), but sometimes it is also used to _cause_ the reset, so that the system restarts properly. (suicide and resurrection. I suck at analogies.) So, that said, I'd suggest watchdog_ping() or watchdog_feed() as functions for the first usage, and save watchdog_reset() for the second. (or watchdog_trigger_reset() etc) Just my 0.02c. In the end, I don't think I'll be the one writing it, so I won't be the one designing it. :) > For the latter case you don't have another choice but to scatter the code with > RESET_WATCHDOG macros like U-Boot does. Or put it in the timer interrupt :) That was, of course, a joke. Cheers Marc _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
