From mboxrd@z Thu Jan  1 00:00:00 1970
From: madhu.cr@ti.com (Madhusudhan)
Date: Wed, 24 Mar 2010 10:31:08 -0500
Subject: mmc errors (was Re: [PATCH] arm: Fix DEBUG_LL for omap zoom2/3)
In-Reply-To: <4BA94564.8030803@ti.com>
References: <20100322212025.GW11448@atomide.com>
	<E0D41E29EB0DAC4E9F3FF173962E9E94026F127117@dbde02.ent.ti.com>
	<20100323152709.GD11448@atomide.com> <4BA94564.8030803@ti.com>
Message-ID: <000001cacb67$0687bef0$544ff780@am.dhcp.ti.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi Nishant,

The eMMC on Zoom2 has an issue with respect to detection as a high capacity
card. This was discussed on the list with Pierre sometime back. I don't have
an acceptable solution to make this device work. Rather I prefer to submit a
patch which disables MMC2 on these boards.

You can still use MMC1 to mount your file system. This is the card you can
plug in to the cage.

Regards,
Madhu

> -----Original Message-----
> From: Nishanth Menon [mailto:nm at ti.com]
> Sent: Tuesday, March 23, 2010 5:49 PM
> To: Tony Lindgren
> Cc: Pais, Allen; linux-arm-kernel at lists.infradead.org; linux-
> omap at vger.kernel.org; Pandita, Vikram; Madhusudhan Chikkature Rajashekar
> Subject: mmc errors (was Re: [PATCH] arm: Fix DEBUG_LL for omap zoom2/3)
> 
> Tony Lindgren had written, on 03/23/2010 10:27 AM, the following:
> [...]
> > Then at least one issue remains for zoom3 to be usable..
> > I'm getting tons of MMC errors trying to mount root on it:
> >
> > mmcblk1: error -110 transferring data, sector 2097024, nr 8, card status
> 0x900
> > end_request: I/O error, dev mmcblk1, sector 2097024
> > ...
> >
> I have seen this on few platforms and seem to be related to eMMC usage.
> 
> > Any ideas if that's fixed somewhere also?
> Madhu, any comments?
> 
> --
> Regards,
> Nishanth Menon