[Gumstix-users] SD cards?, was: CF vs. MMC

[<ro...@in...>]

Quoting Dave Hylands <dhy...@gm...>:

> > I tried using an sd card once and had no luck getting it to work on the
> > gumstix - worked fine elsewhere. Like you, I'm finding it ever more
> > difficult to find mmc cards. I read this as writing on the wall. Unless
> > an sd driver comes through for gumstix there may soon not be a choice
> > to make.
>
> I think SD card support came along with the 2.6.15 kernel back in revision
> 865.
>
> I tried a couple SD cards and they worked fine under linux (on my
> gumstix), but u-boot doesn't recognize them (it only works with MMC).

I have a PNY brand SD card, 512 M, which works fine w/ Win XP
but a Waysmall running r1161 software doesn't seem to recognize it --
mmcinit at the U-boot GUM> prompt says only "No MMC card found",
and I wasn't able to get it to work at the Linux prompt;
mount /mnt/mmc fails, and I wasn't able to modprobe my way
to success either. (Just how is it supposed to work at the Linux
prompt if mount /mnt/mmc doesn't automatically work?)

I saw some gumstix-users messages from a 2004 in which someone
stated that SD cards won't work. I guess I'm confirming that.
I hope I'm mistaken; maybe someone more experienced can comment.

HTH
Robert Dodier