[maemo-leste] [PATCH] arm: Remove nokia_rx51 board
trini at konsulko.com
Wed Jun 16 23:20:20 CEST 2021
On Wed, Jun 16, 2021 at 11:16:32PM +0200, Pali Rohár wrote:
> On Wednesday 16 June 2021 17:12:13 Tom Rini wrote:
> > Wait, why is thumb disabled? That's something I'd really like to know
> > why on as my first guess is there's units with old enough cores that
> > have some thumb errata maybe?
> IIRC we disabled at time when N900 support was merged into U-Boot (about
> 10 years ago) as built binary did not work on real N900 HW. Non-thumb
> build work fine.
> I thought it was due to thumb errata but yesterday I was told that thumb
> errata affects running system only when virtual memory and context
> switches are used. And correct me if I'm wrong, but u-boot is not using
> virtual memory mapping and neither multiprocessing context switches.
> So it looks like that at that time (10 years ago) there was another bug
> in u-boot which caused that thumb build was non-working.
Thanks for explaining, yes, we should be able to enable thumb and
disable EFI and see just how close things are again to the size limit.
Oh, and we have things set such that the hooks to cause link time errors
on size overflow are enabled here, right?
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 659 bytes
Desc: not available
More information about the U-Boot