How to connect a CF to a MPC82xx in trueIDE mode with DMA/UDMA capability?

[Miguel Valero (OS/EXA)]

Does anybody know whether it is possible to have a CF card directly
connected to a MPC82xx and have it working in trueIDE mode with either
multiword DMA or, preferibly, UDMA capabilities on?
We know how to have it connected and working in trueIDE mode, but
without DMA capabilities.

Is the MPC82xx DMA controller at all able to assist the CF in doing
multiword DMA or UDMA? How does one connect the DMA related CF pins to
the MPC82xx? How does one configure the UPM that controls the CF? Is
there a linux driver for MPC82xx that exploits the DMA/UDMA capabilities
of the CF?


Regards
Miguel A. Valero
R&D engineer
Ericsson AXXESSIT AS


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