I am attempting to restore the boot loader on our LS1046ARDB eval board.
The Lauterbach is failing on System.UP:
"debug port fail
Failed to initialize master core. Check master/slave and debug settings."
trying different script leads to different errors.

I did try all the suggestions found on this page:https://support.lauterbach.com/kb/articles/arm-system-up-system-attach-returns-debug-port-fail
We never have been able to use the Lauterbach for updating the QPSI NOR or debugging. We had to use the CodeWarrior to do so(not available at present).