[src/trunk]: src/sys/dev/tc Use volatile on device register access.

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

details:   https://anonhg.NetBSD.org/src/rev/9bbf56f54554
branches:  trunk
changeset: 746812:9bbf56f54554
user:      tsutsui <tsutsui%NetBSD.org@localhost>
date:      Thu Aug 20 12:55:26 2009 +0000

description:
Use volatile on device register access.

diffstat:

 sys/dev/tc/sfb.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (29 lines):

diff -r 378ec34eccee -r 9bbf56f54554 sys/dev/tc/sfb.c
--- a/sys/dev/tc/sfb.c  Thu Aug 20 12:51:28 2009 +0000
+++ b/sys/dev/tc/sfb.c  Thu Aug 20 12:55:26 2009 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sfb.c,v 1.78 2008/12/17 20:51:35 cegger Exp $ */
+/* $NetBSD: sfb.c,v 1.79 2009/08/20 12:55:26 tsutsui Exp $ */
 
 /*-
  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sfb.c,v 1.78 2008/12/17 20:51:35 cegger Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sfb.c,v 1.79 2009/08/20 12:55:26 tsutsui Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -330,8 +330,8 @@
 
        base = (void *)ri->ri_hw;
        asic = base + SFB_ASIC_OFFSET;
-       hsetup = *(u_int32_t *)(asic + SFB_ASIC_VIDEO_HSETUP);
-       vsetup = *(u_int32_t *)(asic + SFB_ASIC_VIDEO_VSETUP);
+       hsetup = *(volatile u_int32_t *)(asic + SFB_ASIC_VIDEO_HSETUP);
+       vsetup = *(volatile u_int32_t *)(asic + SFB_ASIC_VIDEO_VSETUP);
 
        vbase = 1;
        SFBWRITE32(asic, SFB_ASIC_VIDEO_BASE, vbase);