Starting the arch/powerpc merge

Kumar Gala kumar.gala at
Tue Sep 27 13:39:56 EST 2005

On Sep 26, 2005, at 7:25 PM, Paul Mackerras wrote:

> I have pushed a commit to the powerpc-merge.git tree which gets us far
> enough to be able to build a 32-bit powermac kernel with
> ARCH=powerpc.  It's still very rough in places, and it uses bits out
> of arch/ppc/kernel and arch/ppc/syslib, but it is a start.
> Of course, this means that we are about to bump up against the really
> hard bits of the merge.  Things like
> * converting ppc32 to use the lmb infrastructure
> * introducing the device-tree flattening/unflattening to ppc32
> * working out how to deal with the early hash table initialization
>   that POWER4 needs on ppc32
> * reconciling the fact that ppc64 needs RELOC in the prom_init code,
>   whereas ppc32 doesn't; but ppc64 doesn't need RELOC when running
>   with the MMU off but ppc32 does (or needs -mrelocatable).
> I look forward to people sending me patches to push this on a bit
> further, and in particular to populate arch/powerpc/platforms a bit
> more. :)

You have duplicated files between arch/ppc/ and arch/powerpc.  Do you  
plan on cleaning this up are should we make sure we "fix" both?

- kumar

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