[U-Boot] ARM relocation, question to Heiko

Albert ARIBAUD
2010-10-04T21:31:14Z

Le 04/10/2010 18:31, Stefan Roese a ?crit :
> On Monday 04 October 2010 17:24:09 Albert ARIBAUD wrote:
>>> Excellent work! Congratulations!
>>
>> Thanks, but I'd suggest to wait for congrats until ethernet works --
>> tough I've got a clue, I think; it may have to do with the core
>> activating its caches and the driver doing DMA. :)
>
> Yes. Very likely a aching problem and not an relocation issue. With D-cache
> enabled some IO drivers might have some problems. This will also be a problem
> with for example USB support.

... and that is a new proof that assumption is the mother of all screw-ups.

It was not a question of caching; it was a question of trashing the
address of gd passed from board_init_f() through relocate_code() to
board_init_r(), and all code before the marvell ethernet driver not
relying on gd anought to break.

Patches to follow right away as an RFC.

Amicalement,
--
Albert.