Messages in this thread | | | Date | Wed, 13 May 2009 18:28:09 +0800 | Subject | Re: [PATCH] [PowerPC] MPC8272ADS: fix device tree for 8 MB flash size | From | Li Yang <> |
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On Wed, May 13, 2009 at 3:06 AM, Wolfgang Denk <wd@denx.de> 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@denx.de> > Cc: Scott Wood <scottwood@freescale.com> > cc: Kumar Gala <galak@kernel.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.
The latest reference board I got also has an 8MB SIMM flash module shipped in the box.
> > I'm posting this as reference in case the 8 MB should turn out to be > correct. -- wd
Although 8MB seems to be the common size used. It can be very easy changed as a pluggable module. It might be better to make the code working for any reasonable flash sizes.
- Leo
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