Hi Shawn,

[CRC failures on MMC]

I guess you will also get the unknown partition table message if you
test this card on mx35 right now.

No, I didn't see that message on MX35. (Doesn't matter much now).

I just tested 7 mmc cards in total.  6 cards work fine, and 1 card
(Transcend MMC plus 1GB) has the exactly same problem as yours. And
if I remove the 8 bit cap, this card also works fine.  So I would
agree with Russell that it's unrelated to the driver.

Ah, the 8_BIT_CAP was the right pointer. It works now and I can see the
partitions \o/ But IMHO it is related to the driver because it cannot set that
8_BIT_DATA_CAP unconditionally? Probably something like 'flags' should be added
to platform_data? One flag could then be 8_BIT_CAPABLE_SLOT or something.

I tested the SDIO, but probably in different way from yours.  I had
two card slots on my board, rootfs on mmc0 and SDIO card on mmc1.
It seems working fine in this way.  However, when I use nfs and test
SDIO on mmc0, my systems hangs too.  I will look into it.

The latter scenario is the only one I can test, because I don't have an
(active) second slot.

Thanks for keeping up with the driver!

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |