madhu chikkature wrote:<snip>Hi,
This is regarding the discussion going on in the list about the
support of SDIO cards in Linux. I read some discussion happening to
support SDIO cards using the existing Linux MMC core but I could not
figure out what would be the direction the community to support the
SDIO cards.
With this, is it a fissible solution to have the MMC core do the
initialization part of the card by having the CMD sequence for SDIO
card (CMD5 and CMD3) in the mmc_setup sequence and maintain the SDIO
card list along with MMC/SD?
SD mandates a star topology (just a single card per bus), so we'll just
force a single card into the list. SD memory cards can actually work on
a shared bus, SDIO can not. It's not a big problem in practice though.