[src/trunk]: src/sys/arch/macppc/macppc Use BAT1 to map the primary I/O segme...

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

details:   https://anonhg.NetBSD.org/src/rev/78c0ba23f94f
branches:  trunk
changeset: 526111:78c0ba23f94f
user:      matt <matt%NetBSD.org@localhost>
date:      Thu Apr 25 19:32:59 2002 +0000

description:
Use BAT1 to map the primary I/O segment at 0x80000000 so we don't have to
bat-flip for those accesses.

diffstat:

 sys/arch/macppc/macppc/machdep.c |  5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diffs (19 lines):

diff -r e1a9deca0eb7 -r 78c0ba23f94f sys/arch/macppc/macppc/machdep.c
--- a/sys/arch/macppc/macppc/machdep.c  Thu Apr 25 18:45:35 2002 +0000
+++ b/sys/arch/macppc/macppc/machdep.c  Thu Apr 25 19:32:59 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: machdep.c,v 1.111 2002/04/23 12:41:05 kleink Exp $     */
+/*     $NetBSD: machdep.c,v 1.112 2002/04/25 19:32:59 matt Exp $       */
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -218,6 +218,9 @@
        asm volatile ("mtibatl 0,%0; mtibatu 0,%1;"
                      "mtdbatl 0,%0; mtdbatu 0,%1;"
                      :: "r"(battable[0].batl), "r"(battable[0].batu));
+       /* BAT1 used for primary I/O 256 MB segment */
+       asm volatile ("mtdbatl 1,%0; mtdbatu 1,%1;"
+                     :: "r"(battable[8].batl), "r"(battable[8].batu));
 
        /*
         * Set up battable to map all RAM regions.