[U-Boot] Strange data behaviour

[Kim Phillips]

On Wed, 18 Feb 2009 09:19:08 +0100
Remco Poelstra <remco.poelstra at duran-audio.com> wrote:

> Wolfgang Denk schreef:
> > I bet you are using a plain  pointer  access  without  a  "volatile",
> > which is essential here. Maybe even some form of "sync" is needed. In
> > any  case,  you  should  use appropriate accessor functions to access
> > device registers.
> 
> I do not know any accessor functions.

things like out_be32 (at least that's what it's called on ppc arch).

> What do you mean with a "sync"?

it's a processor instruction that ensures that memory and/or i/o
accesses occur exactly when you specify they occur.  For this reason, a
sync instruction is included as a part of the accessor functions.

Kim