On Sunday 19 January 2014, Olof Johansson wrote:

The "multi-slot" concept I was talking about was one host controller
for several physical slots. Seems like at91 implements and uses this
but nobody else. However, it seems that they allocate one mmc host per
slot, so the same model still works.

IIRC dw-mci also has multiple slots, and it's a common host controller
in a number of SoCs. I don't know how many of them actually support
multiple slots rather than a simplified single-slot version of
that controller.

	Arnd