[U-Boot] [PATCH] mmc: omap: handle controller errors properly

[Pali Rohár]

On Wednesday 21 March 2012 20:11:08 Pali Rohár wrote:
> On Monday 19 March 2012 15:14:39 Tom Rini wrote:
> > On 03/19/2012 03:12 PM, Grazvydas Ignotas wrote:
> > > According to OMAP3 TRM, when the controller reports certain
> > > errors, driver must perform a software reset. This is done by
> > > setting a bit in SYSCTL and waiting it to clear:
> > > - SRC on command timeout (CTO)
> > > - SRD on data errors (DTO, DCRC and DEB)
> > > 
> > > This fixes a problem seen on OMAP3 pandora board with some
> > > cards
> > > 
> > > that won't work with a message printed multiple times:
> > >    timedout waiting on cmd inhibit to clear
> > > 
> > > Code loosely based on Linux omap_hsmmc driver.
> > > 
> > > Signed-off-by: Grazvydas Ignotas<notasas at gmail.com>
> > 
> > Most excellent!  Pali, can you try this on N900 and see if that
> > helps out the problem you were having as well?
> > 
> > Andy, I'll give this a spin through the boards I've got here but
> > I'd like this to go, via your tree, into u-boot/master assuming
> > all goes well.
> 
> Hi!
> 
> I tried this patch and it
> really fixed problem on Nokia N900.

Tested-by: Pali Rohár <pali.rohar at gmail.com>

-- 
Pali Rohár
pali.rohar at gmail.com
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