[Arm-netbook] "[EOMA68] RFC: ADDITION OF SD/MMC TO STANDARD."

[Luke Kenneth Casson Leighton]

i'm giving serious consideration, even at this late phase, to adding
SD/MMC to EOMA68 by way of the GPIO pins as a multiplexing option.
this would not have any impact on the EOMA68-A20 CPU Card: in fact,
the only reason this can be considered at all is because the pins
*happen* to be multiplexed as SD/MMC and GPIO *anyway*.

this would also happen to give EOMA68 an SPI port as well.

the idea came to me because it's something that's been forced on
EOMA-26 due to the small number of pins (26) on EOMA-26.

after looking at dozens of SoCs i don't think i've seen a single one
these days which *only* has a [non-multiplexed] SD/MMC port.  even if
there was one that did (at an affordable price), a cross-bar buffer IC
would take care of that.

does anyone have any objections, and/or can think of any gotchas which
would prevent SD/MMC from being added as a non-optional multiplexed
option to EOMA-68?

l.