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From: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [patch 1/9] move 82xx/83xx/86xx Kconfig options to platform
	selection
Date: Wed, 11 Jul 2007 23:19:05 +0200
To: Arnd Bergmann <arnd@arndb.de>
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org
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> Which systems in particular should allow CONFIG_TAU? Is there a more
> specific dependency than (6xx && !(82xx || 83xx || 86xx || 52xx))?

7xx and 7xxx CPUs (G3 and G4).  Nothing earlier (according to
the IEEE article introducing the TAU), maybe some later units
have it though (but I think they have incompatible things with
a similar function).

TAU is broken on many CPU models btw (it works, just gives
back nonsense results).


Segher