Re: MPC8260 cache patch

[Andrew Lunn <andrew dot lunn at ascom dot ch>]

> As I was thinking about this last night, I started to wonder, why does it
> matter if the sync time is doubled?  The effeciency expert in my cringes to
> hear me write this (huh?) but, seriously, how often does the cache need to
> be sync'd in eCos.

Some network devices could be affected. Onces that are memory mapped.
You need to sync the memory before telling the device to actually do
the send, otherwise it sends the random junk in DRAM and not the real
packet which could still be in cache.

I don't know if this is true for the 8260 though.

  Andrew