DSi Reverse Engineering: SD/MMC/SDIO Registers

Just created a wiki page with currently known info about the DSi's SD/MMC/SDIO Host controller:

http://dsibrew.org/wiki/SD/MMC/SDIO_Registers

If somebody knows more about it, please add info to wiki page, and/or post info here!

If you don't know more: Don't worry, there are still plenty of unknown bits. More than enough for everybody to discover something.