In message D96E2AFA0DF3D211B13900902745494803736272@helios.gnv.tcc.thomson-csf.com you wrote:
it is a custom board with a mpc8xx.
Then the answer to your question is simple: you made some errors in your port of U-Boot to your hardware. I know, this is just an anwer to your question, not a solution to your problem.
I think that most of the config is board independant. ( Prog of the BRG, Prog of the CPM ... )
You are wrong. A LOT of the configuration parameters are hardware specific.
U-Boot finds 9600 for the baudrate in the env. So I wonder where board specific items can make it hang.
Basicly anything. Bad clock configuration for example.
With that little information you provide? Sorry...
Well, I thought ( and hoped ) that I made a standard mistake somewhere ...
You did: not providing enough information.
Wolfgang Denk