[PATCH] ppc: Add support for bigger page sizes than 4KB on PPC44x

Josh Boyer jwboyer at linux.vnet.ibm.com
Wed Mar 14 01:09:25 EST 2007


On Tue, 2007-03-13 at 08:00 -0600, Grant Likely wrote:
> On 3/13/07, Christoph Hellwig <hch at lst.de> wrote:
> > On Mon, Mar 12, 2007 at 10:54:26PM +0100, Stefan Roese wrote:
> > >  arch/ppc/Kconfig               |   10 ++++++++
> > >  arch/ppc/kernel/head_44x.S     |   23 ++++++++++---------
> > >  arch/ppc/kernel/misc.S         |   13 ++++++-----
> > >  arch/ppc/kernel/vmlinux.lds.S  |   15 +++++++-----
> > >  include/asm-ppc/page.h         |    6 ++++-
> > >  include/asm-ppc/ppc_page_asm.h |   49 ++++++++++++++++++++++++++++++++++++++++
> >
> > I though we'd given up on arch/ppc by now?
> > Can you try to redo this over the arch/powerpc/ 44x port?
> 
> Not dead yet.  arch/powerpc support is not complete for 4xx cores and
> older bootloaders cannot boot arch/powerpc kernels yet.

Um, yes they can.  You just need to include the dtb in the zImage
wrapper.  I've booted Ebony with Openbios using David's patches and
Bamboo with PIBS using my patches (which are based off David's patches).

What I think you mean is that there is no translation from a bd_t (using
older u-boot for example) to a dt in the wrapper yet.  But that is what
Scott's cuimage patches are for.

josh




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