[U-Boot-Users] [PATCH][FOR 1.3.4] 85xx: Don't move interrupt vector to low memory

[Wolfgang Denk]

In message <D5CA3AB9-3AE3-439C-A169-F8CD26D4A320 at kernel.crashing.org> you wrote:
> 
> >> Book-E will need different code for handing IVPR/IVORs than classic.
> >
> > Umm... the exception code itself may be different, but does this imply
> > that the code used to copy / relocate the exception handlers to low
> > mem must be different, too?
> 
> the copying bit should be do-able in generic code.
> 
> 74xx_7xx/mpc512x/mpc5xx/mpc8xx/mpc8220/mpc824x/mpc83xx/mpc86xx:
> 
> copy from [_start, _end_of_vectors] to 0x100
> 
> 4xx/85xx:
> 
> copy from [_start_of_vectors, _end_of_vectors] to 0x100

OK, that's what I exoected. So we should plan to factor out this part
of code one day.

> >>> Maybe. But then, these can use exception vectors at low mem, too,
> >>> right?
> >>
> >> They can, but it has to be setup.
> >
> > What is Linux doing?
> 
> don't follow the question.. what is linux doing with what?

Where is Linux setting up exception vectors on these systems?

Best regards,

Wolfgang Denk

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