[src/trunk]: src/sys/arch/arm/cortex Force TTBCR to 0

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8b3904df12e5
branches:  trunk
changeset: 781415:8b3904df12e5
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Sep 05 00:21:30 2012 +0000

description:
Force TTBCR to 0

diffstat:

 sys/arch/arm/cortex/a9_mpsubr.S |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (25 lines):

diff -r 078bf2f4993e -r 8b3904df12e5 sys/arch/arm/cortex/a9_mpsubr.S
--- a/sys/arch/arm/cortex/a9_mpsubr.S   Wed Sep 05 00:20:57 2012 +0000
+++ b/sys/arch/arm/cortex/a9_mpsubr.S   Wed Sep 05 00:21:30 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: a9_mpsubr.S,v 1.2 2012/09/02 05:01:54 matt Exp $       */
+/*     $NetBSD: a9_mpsubr.S,v 1.3 2012/09/05 00:21:30 matt Exp $       */
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -135,10 +135,14 @@
        mcr     p15, 0, r1, c8, c7, 0   /* Invalidate TLBs */
 
        /* Set the Domain Access register.  Very important! */
-       XPUTC(#74)
+       XPUTC(#73)
        mov     r1, #((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT)
        mcr     p15, 0, r1, c3, c0, 0
 
+       XPUTC(#74)
+       mov     r0, #0                  /* make sure TTBCR is 0 */
+       mcr     p15, 0, r0, c1, c0, 2
+       
        /*
         * Enable the MMU, etc.
         */