Network buffers, MPC860 and data caching

[Nick.SIMON at syntegra.bt.co.uk]

I'd like to use data caching to speed things up on my MPC860-based board.
However, buffers used by the SCCs e.g. for network transmit & receive must
not be in cached memory.  To achieve this I intend to reserve a chunk of
memory which has caching turned off.  This means the network buffers have to
be allocated from this reserved memory.

Does anyone know of a tidy way to take control of the network stack's buffer
allocation?


-- Nick Simon