include/asm-ppc/platforms/
Frank Rowand
frank_rowand at mvista.com
Sun Dec 2 05:19:40 EST 2001
Dan Malek wrote:
>
> Frank Rowand wrote:
>
> > ....Some concrete
> > examples of core / chip / board are:
> >
> > 403
> > 403GCX
> > 405
> > 405cr
> > 405gp
> > walnut
> > cpci405
> > ep405
> > stb03xxx
> > redwood-4
> > NPe405H
> > NPe405L
>
> I think the 4xx has always had this backward from other PowerPC platform
> definiitons. While we should define processor cores, their peripherals,
> and boards, the least common denominator is the processor core. With the execption
> of few boards (the Sandpoint comes to mind), simply configuring a board
> type will allow you to know which processor package is used and further
> the processor core. If I say "Walnut" configuration, I already know everything
> else, I don't need to be asked all of the other configuration questions.
> Our files should also follow this structure. The Walnut configuration file
> should include 405GP (which defines peripherals) which should then include
> the processor core definitions (if necessary). This way, when a new processor
> package with a different peripheral configuration is added, all you need to
> do is ensure the proper lower level core file is included, you don't have
> to update all of the board configuration files with stuff they don't care about.
>
> If, in this example, the Walnut had different processor types available, it
> would make sense within that configuration to ask the processor type, but no
> one else would (nor should) care. Again, the file structure would follow,
> with the Walnut board configuration including the appropriately configured
> processor package.
>
> Thanks.
>
> -- Dan
If I understand correctly, you are talking only about the configuration
structure, not the header file structure -- so a different topic than
what this thread has been. Please correct me if you are also talking
about header file structure.
arch/ppc/config.in has already been changed to match what you propose.
-Frank
--
Frank Rowand <frank_rowand at mvista.com>
MontaVista Software, Inc
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