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List:       linux-omap
Subject:    RE: OMAP3xxx hsmmc : MMC3 doesn't work, always times out?
From:       "Gadiyar, Anand" <gadiyar () ti ! com>
Date:       2009-06-11 17:51:47
Message-ID: 5A47E75E594F054BAF48C5E4FC4B92AB03059BB9AD () dbde02 ! ent ! ti ! com
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<snip>
> 
> You are quite possibly correct, but the level translator I'm using is  
> "invisible" - it doesn't require the transceiver control signals  
> offered only on MMC2. So as far as I know, there is no hardware reason  
> the OMAP MMC3 controller couldn't talk correctly at the electrical  
> level with the card. This is evidenced by the CMD signal being  
> correctly level translated (and this is via the same type of level  
> translator as the data signals are according to the TXS02612  
> datasheet), and toggling correctly(-looking) at the card socket (i.e.  
> between 0 and 3.3V and it's edges synced to the clock signal). The  
> DAT0-DAT3 signals never do anything though.

The MMC3 DAT0-DAT3 lines are muxed with MMC2 DAT4-DAT7. Any chance the
padconfs are being overwritten even though you programmed them
correctly in the bootloader?

- Anand
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