[U-Boot] write to mcBsp address space

[Ran]

Albert ARIBAUD <albert.aribaud <at> free.fr> writes:

> 
> Hi Ran,
> 
> Le 15/02/2011 07:35, Ran Shalit a écrit :
> > Hello,
> >
> > I'm working on OMAPL138 EVM board, with the U-BOOT.
> > I'm trying to access and write into the register (which have write bits),
> > but I always read 0 in all the map space of the mcBSP0 and mcBSP1.
> > (0x01d10000 - 0x1d10800, 0x01d11000 - 0x1d11800).
> > I wonder what I missed here. any ideas are welcomed.
> 
> Many SoCs have "base address registers" that allow remapping internal or 
> peripheral registers anywhere in the address space, which means the 
> actual address you're trying to get at might not be the right one. Did 
> you check the BAR(s) and make sure the mcBsp address you're targetting 
> is the right one for your board?
> 
> > Thank you very much,
> >
> > Ran
> 
> Amicalement,

Hello Albert,

Thank you very much for your reply.
I've checked the datasheet but I see no reference to base address registers 
for the mcBSP.

mcBSP: http://www.ti.com/litv/pdf/sprugj6c
OMAPL138: http://www.ti.com/lit/gpn/omap-l138

thanks again,

Ran