[U-Boot] DBCR0 reset problem in MPC8548CDS

Kumar Gala galak at kernel.crashing.org
Fri Apr 17 01:12:57 CEST 2009


On Apr 9, 2009, at 1:03 PM, Werner Nedel wrote:

>
> I'm trying to update my u-boot version (1.2) to the last one  
> (2009.03). My
> board is very similar to MPC8548CDS. Everything was working fine  
> till I
> tried to use the reset command. It hangs the processor in  
> cpu_init_early_f,
> when it realocates ccsbar. I'd always used the hard reset in DBCR0  
> register
> instead HRESET_REQ that ins't wired in my board.
>
> I saw that the value of MSR register came different before reset  
> when I
> compare with the old u-boot (0x8000 -> 0x29200). There are new  
> writes in
> this register in this new version, could any of them causing my  
> problem?

It would probably be useful to have any obvious differences in the  
physical address space from the MPC8548CDS config that exist.

- k


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