[U-Boot-Users] What are IBAT and DBAT?

[Frank]

If you do use the bmw board as a model, be sure to include your
define along with the "#if defined CONFIG_BMW" (in start.S) or
you will not "drop" into early_init_f in early_init.S. 

--- "DeLaGarza, Robert" <robdlg at att.net> wrote:
> Shawn wrote:
> > 3. Can IBAT and DBAT be modified dynamically? For example,
> if I want to
> > access 0x70000000 ~ 0x78000000 temporarily, which is not
> defined in
> > configuration header file, can I change the configuration of
> one of IBAT
> > and DBAT pair, e.g. ibat2 and dbat2?
> > 
> 
> The Broadcom BMW board is based on the MPC8245, and it
> accesses part of 
> that region of memory.  You should use that code as an
> example.
> 
> However, I should note that, in U-Boot 1.0.0, the file 
> "board/bmw/early_init.S" does not contain a GPL header.
> 
> -Robert DeLaGarza
> 
> 
> 
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