[PATCH v2 1/7] mmc: mxs-mmc: add mmc host driver for i.MX23/28

[Wolfram Sang]

On Tue, Feb 15, 2011 at 05:19:17PM +0000, Russell King - ARM Linux wrote:
> On Tue, Feb 15, 2011 at 06:13:41PM +0100, Wolfram Sang wrote:
> > 
> > > Ah, yes.  I can also see the problem here after turning on
> > > DEBUG_SPINLOCK.
> > 
> > Ah, okay. After turning it off, it works a lot better :)
> 
> That doesn't mean the problem is fixed. [...]

Yes, I know that. I should have put the 'works' above in quotes, sorry.

> > MMC fails for me (note: the card works fine with an mx35-based board)
> > 
> > 	mmc0: new high speed MMC card at address 0001
> > 	mmcblk0: mmc0:0001 AF HMP 247 MiB 
> > 	mmcblk0: retrying using single block read
> > 	mmcblk0: error -84 transferring data, sector 0, nr 8, card status 0x900
> > 	end_request: I/O error, dev mmcblk0, sector 0
> 
> EILSEQ means CRC failure.  Probably unrelated.

Even if it works in another setup? As a result of the above, I can't read the
partition table of that MMC. The mx35 can do so.

> > SDIO card locks the machine. Is it supposed to work already?
> 
> Guess it's the spinlock causing that problem.

Yeah, that could be. In addition, I was just generally interested if SDIO has
been tested by Shawn.

Regards,

   Wolfram

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