How to use MMC-over-SPI on MPC8313E

DISCUSSION Vinu 3 participants 3 messages Sep 6, 2007 – Sep 7, 2007

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Vinu

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2007-09-06 17:05 UTC #0 lore raw

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

Vitaly Bordug

2007-09-07 09:22 UTC #1 lore raw

Quoted 6 lines · 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.

Quoted 6 lines

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.

Signature · 1 line

Sincerely, Vitaly

Sven Luther

2007-09-07 09:59 UTC #2 lore raw

In reply to Vinu

Quoted 10 lines · 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.

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