[U-Boot] [PATCH] mpc83xx: Make it boot again

[Joakim Tjernlund]

Wood Scott-B07421 <B07421 at freescale.com> wrote on 2010/11/04 17:47:41:
>
> Joakim Tjernlund wrote:
> > Trial and error suggests that map_flash_by_law1 needs
> > an isync(padding with 4 nop's also did the trick)
> > after updating LBLAWAR1 to make sure the the change has
> > reached the HW before continuing with the code that depends on it.
> > Add an isync to remap_flash_by_law0 for good measure too.
>
> To be totally safe, we probably want to do a readback plus twi (to turn a data dependency into a flow dependency) before the isync.

Feel free but there is no data cache here and IMMR should be GUARDED, still need that anyway?

   Jocke