tree 73e3868737061e1d5b0b61c182ea443e3ccd94e3
parent 468ffde46d429fbd291b0ef43a06afe9c837629f
author David Daney <ddaney@caviumnetworks.com> 1286492633 -0700
committer Ralf Baechle <ralf@linux-mips.org> 1288375723 +0100

MIPS: Octeon: Apply CN63XXP1 errata workarounds.

The CN63XXP1 needs a couple of workarounds to ensure memory is not written
in unexpected ways.

All PREF with hints in the range 0-4,6-24 are replaced with PREF 28.  We
pass a flag to the assembler to cover compiler generated code, and patch
uasm for the dynamically generated code.

The write buffer threshold is reduced to 4.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Patchwork: http://patchwork.linux-mips.org/patch/1672/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>