[U-Boot-Users] U-Boot and MPC857T?

Steven Scholz steven.scholz at imc-berlin.de
Wed Jul 2 08:36:24 CEST 2003


Wolfgang Denk wrote:
> In message <3F014BE5.3080906 at imc-berlin.de> you wrote:
> 
>>has someone patched U-Boot to "support" the MPC857T?
>>
>>AFAIK it's basicly a MPC855T. So the only change would be to avoid a 
>>boot message like:
>>
>>CPU:   unknown MPC855 (0x07000003) at 80 MHz: 4 kB I-Cache 4 kB 
>>D-Cache FEC present
> 
> 
> All  you  need  to  do  is  extend  the  list  of  types  defined  in
> "cpu/mpc8xx/cpu.c" - a patch is welcome.

I'd love to present a patch.
Could you please give me a pointer where to find information about the 
values of

k = (immr << 16) | *((ushort *) & immap->im_cpm.cp_dparam[0xB0]);

?
I couldn't find some.

Is it possible to find out if it's a 855, 857 or 860 at runtime?
So that we don't have to rely on DEFINES?

FAIK MPC855T and MPC857T are basicly the same. So could put both on my 
board without actually changing the firmware.
Would be nice if u-boot could figure out which one is actually present.


Thanks,

Steven







More information about the U-Boot mailing list