dcache and 8260_io/fcc_enet.c
joakim.tjernlund at lumentis.se
Sat Nov 2 02:46:58 EST 2002
> I noticed that fcc_enet_start_xmit() does not flush the transmit data before
> setting up the transmit buffer descriptor. I get the impression that this is
> not necessary. But I don't understand why. I have spent the morning looking
> through code and Motorola docs and am non the wiser.
That's because the 8260 CPU understand the CPU caches and, while the 8xx does not
and therefore needs a flush_dcache_range().
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