powerpc/8xx: Don't use MD_TWC for walk
authorLEROY Christophe <christophe.leroy@c-s.fr>
Fri, 19 Sep 2014 08:36:08 +0000 (10:36 +0200)
committerScott Wood <scottwood@freescale.com>
Sat, 8 Nov 2014 00:10:40 +0000 (18:10 -0600)
MD_TWC can only be used properly with 4k pages.
So lets calculate level 2 table index by ourselves.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>

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