[U-Boot-Users] MPC83xx - previous patch to set MBAR

[Liu Dave-r63238]

> > The end result simply adds a line to set MBAR to match IMMRBAR.
> > 
> >         lis     r3, CFG_IMMRBAR at h
> >         ori     r3, r3, CFG_IMMRBAR at l
> >         stw     r3, IMMRBAR(r4)
> > +       mtspr   MBAR, r3
> > 
> > Are these patches routinely added to the mainstream u-boot code? 
> > 
> > Is there any reason why this fix is not a good idea?
> > 
> does setting MBAR really fix anything?
> 
> MBAR doesn't live up to its name.  It's a general-purpose scratch
> register - the hardware doesn't do anything with it.  So, wrt 

Kim is right.

MBAR setting is added by two years ago, it is not really fix anything.

I set the MBAR to be easier to use the CodeWarriror. The CodeWarrior
must set the MBAR first, then it will be able to access the IMMR.

Dave