Generic MMC-over-SPI binding?
r.schwebel at pengutronix.de
Wed Jan 9 03:11:20 EST 2008
On Tue, Jan 08, 2008 at 03:22:00PM +0100, Simon Richter wrote:
> in an embedded system similar to the lite5200 board, there is an MMC
> card socket connected to one of the PSCs. Ideally, I'd like to express
> this fact via the device tree and have the kernel bind the mmc-spi
> driver to the SPI interface, but I cannot find any place where to insert
> this code that I feel comfortable with.
> - It is not a board-specific thing, because any board can just use any
> SPI bus for MMC.
> - The mmc-spi driver appears to be platform independent, so I'm not
> sure OF bindings should be added to it.
> - The generic device tree scanning does not contain any special cases
> yet, so I don't want to add one.
> My current thought is to create a new driver that just handles MMC on
> PSCs in SPI mode by gluing all the relevant drivers together, but that
> doesn't seem optimal to me either.
You know this driver?
Or is your question how to express this in the device tree?
Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
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