It seems that a WatchDog timer is expired.

Matan's u-boot has a watchdog management but it seems that on your phone is not working.

Which HW version you have ?

You can see with cat /proc/cpuinfo from a xterm console.

Matan's u-boot is 100% compatible only with rev 2101

You can try the more recent Pali's u-boot version : http://talk.maemo.org/showpost.php?p...7&postcount=58
But unfortunately it seems that it is for rev 2101 also