[U-Boot-Users] U-Boot-NG ?

[Grant Likely]

On 7/3/07, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> > And this is a bug.  Statically initialized pointers are supposed to be
> > fixed up during relocation.  I've got a big patch set which I'll be
> > posting this evening (and would have already posted if I wasn't having
> > SMTP problems) that solves this for 5xx, 5xxx, 82xx & 83xx.
>
> If you do not use statically initialized pointer on startup and running
> at the link address after startup, you do not need to fixup anything.

... assuming that the u-boot design goal is changed to use a static
relocation address instead of the detected end of RAM.

> > I think the intent of relocation is that the u-boot image can always
> > put itself at the end of SDRAM, regardless of how much ram is on the
> > board.  Not important for ports that have soldered down chips, but
> > useful if the board has expandable memory.
>
> When you can make use of this additional memory, ok. But I think on
> U-Boot this is hardly the case.

It's not a matter of making use of all the additional memory; it's
more a matter of not having an unaccessable region in the middle of
the RAM block.  There are a *lot* of different board configurations
and a lot of different complex systems that load more than just a
linux kernel.

Cheers,
g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely at secretlab.ca
(403) 399-0195