RE: [PATCH] Disable the non working eMMC on Zoom2/3

["Madhusudhan" <madhu.cr@ti.com>]

> -----Original Message-----
> From: Tony Lindgren [mailto:tony@atomide.com]
> Sent: Wednesday, May 05, 2010 1:27 PM
> To: Madhusudhan
> Cc: 'Nishanth Menon'; 'Ghorai, Sukumar'; linux-omap@vger.kernel.org;
> linux-mmc@vger.kernel.org
> Subject: Re: [PATCH] Disable the non working eMMC on Zoom2/3
> 
> * Madhusudhan <madhu.cr@ti.com> [100430 09:52]:
> > <snip>
> >
> > > > >
> > > > > > Hmm, finally got around looking into this again. Looks like the
> mmc
> > > > > > is now working on my zoom3 with the current Linus' tree at
> commit
> > > > > > 7c6bd2010fced38444c9fd658f4c6ce61bd185bf. So I guess something
> that
> > > > > > we had in omap-fixes fixed this. Or maybe some fix for
> drivers/mmc?
> > > > > >
> > > > > > This is with the debug_ll patch applied:
> > > > > >
> > > > > > https://patchwork.kernel.org/patch/87532/
> > > > >
> > > > > For the microSD card, turns out the card I used was flakey. So
> > > > > that should explain some of the problems. I'm almost certain
> > > > > I tried with two different cards earlier though. In any case,
> > > > > let's assume the problem is only the eMMC.
> > > > >
> > > > Sorry, I did not get a complete picture. Your earlier email said
> that
> > > with
> > > > Linus tree eMMC on your Zoom3 is working. Is that correct?
> > >
> > > Nope, now the microSD is working, eMMC is not working.
> > >
> > > > IMHO, an omap level fix can not solve the problem with eMMC because
> as I
> > > can
> > > > see from the log you provided above that a 16G device is detected as
> 1G.
> > > > This is certainly due to the issue I mentioned earlier.
> > >
> > > OK
> >
> > This means that some production boards still have this issue with eMMC.
> So
> > my patch disables the support for MMC2 on zoom boards. Would you
> consider
> > that?
> 
> But is it also broken on zoom2?
>

Yes.

> And what about this "Simulate multi mmc card as one big" patch?
>
Did not get you, what patch are you referring to?

Regards,
Madhu
 
> Regards,
> 
> Tony