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Subject: Re: PCI on 834x
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Date: Fri, 26 Feb 2010 09:36:21 +1100
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Cc: linuxppc-dev <linuxppc-dev@ozlabs.org>, avorontsov@ru.mvista.com,
	Gary Thomas <gary@mlbassoc.com>
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On Thu, 2010-02-25 at 15:03 -0600, Scott Wood wrote:
> 
> It can, but I don't see how that would help, if the problem is that the 
> video card doesn't like the low 30 bits of its MMIO address being zero.

My idea was the video card, if it's an old piece of shit, may not be
decoding all address bits.

> Gary, can you check that the MMIO addresses are going to the PCI bus 
> as-is, and aren't being translated down to zero?  I.e. POTARn should 
> equal POBARn, and likewise in the device tree's pci node's ranges.

Cheers,
Ben.