DMA interface

[patchvonbraun]

Are there any free high-speed I/O channels on the SheevaPlug?

I need to pump 40Mbytes/second streamed into the system from some custom A/D hardware, and I wonder if the DMA channels would work for this?

[MarkF]

I cannot directly answer your question as I don't know what type of physical interface you are looking for.  However, there are two really useful documents on the Marvell site that might help you decide for yourself:

http://www.marvell.com/products/processors/embedded/kirkwood/HW_88F6281_OpenSource.pdf
and
http://www.marvell.com/products/processors/embedded/kirkwood/FS_88F6180_9x_6281_OpenSource.pdf

The second one is pretty large but has all of the information on the different SOC blocks.  The first one has the GPIO pin multiplexing tables in it.

I hope one of these helps you out.