In message 9b7ca657050512050554c9e1dd@mail.gmail.com you wrote:
I'd really appreciate it if you could point me to a file or a function to take a look.
watchdog_reset() for example?
Try running something like
$ cd u-boot $ find * -type f | xargs egrep watchdog or $ find * -type f | xargs egrep watchdog_reset
:P sorry for trying an easy way out, but if you happen to know good place to start, dont hesitate (please) :)
See above - this is obviosly hardware dependent, but looking for watchdog_reset() in cpu/*/cpu.c might be helpful...
Okay, its basically using alarm() to produce SIGALRM every 10 seconds. (assuming alarm() takes second as an argument) And using signal() we are calling runme() function everytime it is woken up by SIGALRM. Natually, runme() will do whatever it needs to do, and sets another alarm before it ends. Not shown in the code, is probably a block read so it keeps the program running. Hopefully this makes more sense than a code :P
No, it does not. As mentioned before, there are no signals or tasks or similar in U-Boot. Everything is strictly single-tasking. I'm not sure waht you want, but you can problaby do something like
for (;;) { /* do something */ usleep (10 * CFG_HZ); }
in C, but I don't understand what that would give you.
Best regards,
Wolfgang Denk