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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
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Date: Mon, 05 Dec 2005 11:22:37 +1100
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Cc: linuxppc-embedded@ozlabs.org
Subject: Re: [PATCH 2.6.15-rc4] ppc32: Fixes for non-zero PPC_MEMSTART on
	PPC440
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On Fri, 2005-12-02 at 01:07 -0700, Jason Gunthorpe wrote:
> I have a custom embedded system with a 440GP derived CPU that places the
> memory starting at 0xc0000000 which requires a non-zero PPC_MEMSTART. There
> are a couple of places that assume PPC_MEMSTART is 0. This results in
> various tricky crashing during booting. Most of the problems are
> not accounting for PPC_MEMSTART during va/pa translations. My fixes
> convert these places to use pre-existing macros instead of duplicating
> the calculation.

Just out of curiosity: why did you do such a bogus setup in the first
place ?

Ben.