[patch 1/9] move 82xx/83xx/86xx Kconfig options to platform selection

[Segher Boessenkool]

> 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