sdhc/mpc8536 - SDCard always detected like read-only - SOLVED.

Wolfram Sang w.sang at pengutronix.de
Thu Apr 7 14:51:37 EST 2011


> Reading the MPC8536E Chip Errata I saw the SDHC_WP signal polarity is 
> reversed to the silicon revision 1.0.
> 
> Unfortunately my prototype board  is using revision 1.0. So, I asked to
> my hardware team workaround putting an extra inverter for the SDHC_WP
> signal.
> 
> Now its working fine!

OK, nice. I fail to see from a glimpse how all this is related to the
timeout-errors you were seeing (-110), but if it works now, all is fine, I
guess.

Regards,

   Wolfram

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