Re: Block request processing for MMC/SD over SPI bus

From: David Brownell
Date: Tue Aug 01 2006 - 10:43:36 EST

On Tuesday 01 August 2006 3:08 am, Hans Eklund wrote:

> As you can see om my LKML post, my driver covers (at first stage) everything
> from low level SPI commands and block device insertion to the request
> processing(since i at first could not connect to the MMC subsystem). Now,
> Russel King believes that you may have written a SPI to MMC subsytem driver.
> Correct? If so, whats the status on your driver?

Not entirely "my" driver, I just updated it and got it to partially enumerate
on some hardware that's a bit too weak for "real work":

... and there's the separate issue of the spi_claim()/spi_release() API
to take over an entire bus. Such an API could be used by other SPI based
interfaces; some in-system-programmers (including JTAG) need that same kind
of protocol tweaking hook for SPI.

- Dave

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