linux-kernel - Re: [PATCH] [PowerPC] MPC8272ADS: fix device tree for 8 MB flash size

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Message-Id: <87E7BC96-041F-4244-8370-B8EE64EEDA7F@kernel.crashing.org>
Date:	Wed, 10 Jun 2009 20:51:19 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Wolfgang Denk <wd@...x.de>
Cc:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org,
	Scott Wood <scottwood@...escale.com>
Subject: Re: [PATCH] [PowerPC] MPC8272ADS: fix device tree for 8 MB flash size


On May 12, 2009, at 2:06 PM, Wolfgang Denk wrote:

> The current device tree for the MPC8272ADS assumes a mapping of 32 MB
> of NOR flash at 0xFE00.0000, while there are actually only 8 MB on
> the boards, mapped at 0xFF80.0000. When booting an uImage with such a
> device tree, the kernel crashes because 0xFE00.0000 is not mapped.
>
> Also introduce aliases for serial[01] and ethernet[01].
>
> Signed-off-by: Wolfgang Denk <wd@...x.de>
> Cc: Scott Wood <scottwood@...escale.com>
> cc: Kumar Gala <galak@...nel.crashing.org>
> ---
> I am not really sure what the typical flash size on MPC8272ADS boards
> is. The board I used for testing is marked as "Prototype", so it may
> not be the release configuration. On the other hand, the manual also
> says 8 MB, Vitaly Borduk confirms 8 MB on his board, too, and Scott
> Wood eventually tested only with cuImage which fixes up the localbus
> mappings, thus eventually concealing the issue.
>
> I'm posting this as reference in case the 8 MB should turn out to be
> correct. -- wd
>
> arch/powerpc/boot/dts/mpc8272ads.dts |   19 +++++++++++++------
> 1 files changed, 13 insertions(+), 6 deletions(-)


applied to next.

- k
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