How to use MMC-over-SPI on MPC8313E

How to use MMC-over-SPI on MPC8313E

[Vinu]

Hi all,

I am working on MPC8313ERDB  Eval board, and want to  use SD Memory card 
to store Linux OS and file system.
The SD card controller is connected directly with the SPI bus.

I simply don't know how to use MMC-over-SPI  technology to make SD card 
usable.

It would be a great help if anybody have any documentation or driver etc.

Thanks.

v2g

Re: How to use MMC-over-SPI on MPC8313E

[Vitaly Bordug]

On Thu, 06 Sep 2007 11:48:08 -0500
Vinu wrote:

> Hi all,
> 
> I am working on MPC8313ERDB  Eval board, and want to  use SD Memory
> card to store Linux OS and file system.
> The SD card controller is connected directly with the SPI bus.
> 
> I simply don't know how to use MMC-over-SPI  technology to make SD
> card usable.
> 
> It would be a great help if anybody have any documentation or driver
> etc.
> 

Please search list - there is 8323 support... We /mvista/ did such a thing not long ago. All the stuff releated to spi/mmc layer is already in mainline kernel, you'll just need to do board-specific patch for 8313 which should be similar to mentioned.
-- 
Sincerely, Vitaly

Re: How to use MMC-over-SPI on MPC8313E

[Sven Luther]

On Thu, Sep 06, 2007 at 11:48:08AM -0500, Vinu wrote:
> Hi all,
> 
> I am working on MPC8313ERDB  Eval board, and want to  use SD Memory card 
> to store Linux OS and file system.
> The SD card controller is connected directly with the SPI bus.
> 
> I simply don't know how to use MMC-over-SPI  technology to make SD card 
> usable.
> 
> It would be a great help if anybody have any documentation or driver etc.

I have recently written a MMC-over-SPI driver for a MPC875 card. It used
the block device directly, and is rather straightforward, but maybe not
so nice as it could be. I need to unbrand it, and can send it to you
later on. Please ping me this WE if you are interested.

Friendly,

Sven Luther

Re: How to use MMC-over-SPI on MPC8313E

[Bobby Skinner]

Hi,

I am also trying to get MMC over SPI working on the 8313E dev board.  
Could I trouble you to send me whatever you have in the way of  
drivers, instructions or documentation. I am sorry to bother you, but  
I saw your message here: http://ozlabs.org/pipermail/linuxppc-dev/2007-September/042119.html 
  and it looks like you guys may have already solved the problem that  
I am having.

Thanks in advance,
Bobby