Developed a custom board based on the i.MX6Q. We are using the internal watchdog timer and the watchdog reset works fine when we perform a reboot command.The WDOG_B signal is being routed to the POR signal of the i.MX6 device.
We are running a watchdog timer test and the board will periodically lock up after the watchdog expires and generates an internal reset signal. It appears to be locking up early in u-boot.
The behavior seems very erratic and is affected by odd functions like:
1. DHCP in progress or not
2. Length of timeout - 5 seconds will not lock up while 60 seconds will
I know this is very vague but looking for any ideas at this point.