Re: [microblaze-uclinux] MMC card driver and IP design

[Lars <lpn1328@xxxxxxxx>]

Thank you all who answered my request.

I was in contact with ASICS World Services and their
(excellent) solution is way over budget for me. I will
start looking at the pointers provided here and report
back if I make any progress.

/Lars

--- John Williams <jwilliams@xxxxxxxxxxxxxx> skrev:

> Hi Lars,
> 
> Lars wrote:
> > Hello list!
> > 
> > I want to integrate a MMC/SD card interface in a
> > microblaze-uclinux system, with a kernel driver so
> the
> > card can be mounted in the file system. No need
> for
> > speed, a simple SPI interface is probably enough.
> I
> > have searched the list and found some vague
> references
> > but no ready solution with both driver and IP
> design.
> > 
> 
> ASICS World Services sell an MMC / SD card interface
> core, and I know 
> there's a Linux driver because I wrote it for them,
> about 18 months ago.
> I think Rudi lurks on the list - feel free to pop up
> and spruik your core!
> 
> There is a xilinx_spi driver for PPC linux 2.4,
> which could be pretty 
> easily brought across to MicroBlaze.  However, it's
> written as a 
> straight char device, and it doesn't look very
> feasible to try and layer 
> an MMC block device over the top of that, which
> would be required for 
> what you describe.
> 
> There's working going on in 2.6 for generic SPI and
> MMC layers, but 
> that's probably not much use to you right now.  It
> may be possible to 
> back port it, it would need some close investigation
> to see how feasible 
> that was.
> 
> Regards,
> 
> John
> 
> 
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> 
> 



	
	
		
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