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

[Sascha Silbe]

Albert ARIBAUD <albert.u.boot at 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.

Sascha
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