tree fdb937e62e3ba818f137971320f10daead763d01
parent 9ffbc4e8d70639fca25643eba5a2829e3fe5e7c3
author Becky Bruce <beckyb@kernel.crashing.org> 1317687051 -0500
committer Kumar Gala <galak@kernel.crashing.org> 1318201074 -0500

powerpc/mpc86xx: Disable translation for BAT setup

We really shouldn't be overwriting bat registers with translation enabled,
especially when we're executing code using one of them for translating
the current instruction stream.  Instead, disable address translation
while doing the final BAT setup.

In order to do this, setup_bats has to move back to asm code, because we
require translation to be enabled to have a stack for C code.  The yucky
thing about that is that the assembler doesn't like ULL so we have to
switch to using HIGH/LOW pairs for physical addresses that are > 32 bits
in length.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>