[U-Boot] 83xx fails to boot with moderately sized kernels

[Wolfgang Denk]

Dear "Ira W. Snyder",

In message <20100909225241.GI3496 at ovro.caltech.edu> you wrote:
> 
> On most (all?) 83xx boards, CONFIG_SYS_BOOTMAPSZ is set to 8MB. The comment
> says:
...
> Does anyone know the true maximum value for CONFIG_SYS_BOOTMAPSZ on Linux
> (if one even exists)?

The CONFIG_SYS_BOOTMAPSZ thing is as old as U-Boot and PPCBoot
exists, i. e. well over a decade. IIRC there was such a limitation on
the then current 2.2.13 Linux kernels, at least on MPC8xx and PPC40x
systems, which is where all started from.


I am pretty sure that as long as nobody ran into any problems, nobody
looked into that code, so it was copied from architecture to
architecture without much thinking, if any.

Best regards,

Wolfgang Denk

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