I'm using mx6ul-dart-board.The problem I'm facing is when the watchdog daemon was started, if I issue the 'reboot' command on the serial console, device will begin the reboot sequence but hang at the end and not reboot.
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Please press Enter to activate this console.
/bin/sh: can't access tty; job control turned off
/ # reboot
/ # Shutting down system...
Saving the System Clock time to the Hardware Clock...
Hardware Clock updated to Thu Jan 1 00:00:23 UTC 1970.
Deconfiguring network interfaces... done.
umount: can't remount tmpfs read-only
umount: tmpfs busy - remounted read-only
The system is going down NOW!
Sent SIGTERM to all processes
Sent SIGKILL to all processes
Requesting system reboot
imx2-wdt 20bc000.wdog: Device shutdown: Expect reboot!
reboot: Restarting system
mxc_restart: Watchdog reset failed to assert reset
It stops at mxc_restart. I have enabled watchdog in the uboot and set the timeout to 120s.