With regards to a specific boot sequence for an AM3517 Sitara, and specifically in the event case where the default UBOOT location is corrupt (i.e. the part never really boots), it is my understanding that the Watchdog timer will expire and the device will reset and retry all over again. Is there a signal that I can monitor that would indicate this scenario? I was hoping that the Sitara would pull the sys_nreswarm low in this case to signify the watchdog timer had expired.
Bottom Line: How can I tell external to the device that the Watchdog timer has expired in the boot loader routine?