Hi Guys,
I am using u-boot 2009.03-rc1 and a board based on Coldfire MC5271EVB eval platform. Our external watchdog is a MAX6369.
I have #define CONFIG_HW_WATCHDOG and #undef CONFIG_WATCHDOG in our board's config file and have created the hw_watchdog_reset function to toggle the WDI line to pet the watchdog.
However, my board keeps resetting at the watchdog timeout. Upon probing, I found out that the watchdog toggle line in not being toggled periodically by u-boot. Which means a regular call to WATCHDOG_RESET() is not happening. If I execute commands, the WDI will get toggled and the watchdog will not timeout, which means that the WATCHDOG_RESET() mapping to hw_watchdog_reset function is working, it is just not being called periodically.
I am looking at the programmable interrupt timer that the get_timer() function uses, and so far everything checks out.
I'm also stuck at using u-boot's sleep command, e.g. "sleep 1" will never return. Which I suspect may be the same root cause. (this can also be observed on the M5271EVB board).
What am I missing here?
Thank you for all your time.
Regards,
- Richard Retanubun.