SPI trouble on Colibri 270 (PXA)...

Martin Guy martinwguy at gmail.com
Wed Apr 21 10:53:53 EDT 2010


On 4/21/10, Jakob Viketoft <jakob at viketoft.se> wrote:
> Martin Guy wrote:
> > On 4/21/10, Eric Miao <eric.y.miao at gmail.com> wrote:
> > >  I thought we were talking about SPI?
> >
> > We are. It affects boards that have a single SD/MMC card on the SPI
> > bus and use SFRMOUT as the chip select line, which impacts how the SPI
> > driver needs to handle multi-part messages without dropping CS between
> > transfers
>
>  Does this mean that this is a know issue with the pxa2xx spi driver? At the
> moment I'm rather pressed for time and have instead opted for compressing
> the two transfers (read command and actual read) into one. There is a slight
> memory overhead in writing, but nothing that will impact our system...

No, it means I'm on the wrong thread and I'm talking complete rubbish.
That was about the ep93x-spi-mmc problems in the next room.
Sorry about that. Just ignore me, I'm confused...

    M



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