[U-Boot] [PATCH] OpenRD: relocate environment to 640kB

Tom Rini
2013-07-15T12:19:57Z

On Mon, Jul 15, 2013 at 11:23:54AM +0200, Sascha Silbe wrote:
> Albert ARIBAUD <albert.u.boot@aribaud.net> writes:
>
> >> The situation has gotten better recently and U-Boot fits into the
> >> previous partition size of 384KiB again. So it isn't broken on OpenRD
> >> anymore and the above would seem like a good approach.
> > How well does it fit again, and do you have any idea what caused the
> > increase in size, and what caused the decrease?
>
> I had the same questions and tried a few buildman runs, but didn't get a
> clear picture. The size was going up and down for various slices of
> commits.
>
> With v2013.07-rc3, we are now at 376344B (??? 96% of 384KiB) for
> openrd_ultimate when built on Debian Wheezy using
> gcc-4.7-arm-linux-gnueabi from Emdebian.
>
> Is there an equivalent to CONFIG_SPL_MAX_SIZE for the "regular" U-Boot?
> Detecting the overlap at build time would prevent bricking the device
> using saveenv at run time. As an additional benefit, commits that push
> the size beyond the limit would also show up in buildman reports as
> build failures.

Yes, you can try using CONFIG_BOARD_SIZE_LIMIT, which is missing from
the README, but does have a few examples (git grep around). A patch to
document it, and then a patch to enable for openrd would be much
appreciated. Thanks!

>
> Sascha

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--
Tom
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