On Fri, 11 Jan 2008 04:47:44 -0500
"Mike Frysinger" <[EMAIL PROTECTED]> wrote:
> Cliff should be able to enumerate the cards he has tested and the
> issues he's run into. i'll see if i cant get more in depth
> information from the hardware guys beyond the documentation on the sdh
> already available in the hardware manual (which i'm guessing has not
> been enough to appease you).
>
Great. And you're right in that the spec did not give any indication that MMC
shouldn't work.
I did notice one thing though. The pull-ups and pull-downs seem to be
controllable. If I remember correctly, DAT3 needs to have a controller-side
pull-up for MMC cards. And the docs said the default was not to provide that
(in order to use the internal pull-up that most, but not all, SD cards have for
detection). Might be something to look at if you haven't already.
Rgds
--
-- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org
PulseAudio, core developer http://pulseaudio.org
rdesktop, core developer http://www.rdesktop.org
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