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SubjectRe: [PATCH] [PowerPC] MPC8272ADS: fix device tree for 8 MB flash size
Date
Dear Li Yang,

In message <2a27d3730905130328m27743852w2d68a62ebc32ce31@mail.gmail.com> you wrote:
>
> 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.

You either have to provide a correct device tree for your board, or
use a boot loader / boot wrapper that fixes the flash base address and
size.

At the moment, U-Boot does not contain any code yet to do that
(patches welcome :-), and as far as I understand the cuImage wrapper
works just the other way round: it adjusts the mappings to the
settings in the device tree, which may or may not match the actual
hardware. This may work, but at least gives you a different flash
memory map in Linux than what you had before in U-Boot, so it's not
really nice either.


Hm... it seems the majority of MPC8272ADS boards seems to come indeed
with 8 MB NOR flash, so I wonder if the patch should actually go in?

Best regards,

Wolfgang Denk

--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
In accord with UNIX philosophy, Perl gives you enough rope to hang
yourself. - L. Wall & R. L. Schwartz, _Programming Perl_


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