Re: [RFC 4/4] Atmel MCI: Driver for Atmel on-chip MMC controllers

[Haavard Skinnemoen]

On Sat, 24 Nov 2007 10:48:39 -0800
David Brownell <david-b@xxxxxxxxxxx> wrote:

> On Saturday 24 November 2007, Haavard Skinnemoen wrote:
> > > 
> > > Why is this needed and is it perhaps something that can be moved
> > > to the MMC core?  
> > 
> > We used to have lots of problems with overruns and underruns and
> > those parameters were useful to limit the transfer rate. Now that
> > the RDPROOF and WRPROOF bits seem to have taken care of these
> > problems for good, I guess we can remove this parameter.  
> 
> Not all silicon *has* those bits though, right?  Like at91rm9200.

Right. The at91rm9200 doesn't have them, and I believe one of the
at91sam926x chips (at91sam9261?) doesn't have them. So if we're going to
merge this driver with at91_mci, I suppose it makes sense to keep this
parameter.

Haavard
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