On Wed, Jan 5, 2011 at 1:04 AM, David Vrabel <david.vrabel@xxxxxxx> wrote: > This would cause regressions on boards that aren't properly designed and > have omitted the pull-up. Are there boards like this? I'm not sure there are. All hosts shall provide pull-up resistors on all data lines DAT[3:0] as described in section 6 of the SD physical specification. A board that doesn't pull up DAT3, and instead relies on the card's internal pull-up, sound very quirky to me. So we might really be able to unconditionally disable the card's DAT3 internal pull-up. We can do that for cards that specifically want it, or, we can even consider a bolder approach where we do that for all the nonremovable SDIO cards (which therefore don't need the card detection functionality anyway). What do you think ? Thanks, Ohad. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
