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Use volatile on device register access.

This commit is contained in:
tsutsui 2009-08-20 12:55:26 +00:00
parent 38268154a7
commit 1a3bfa5100
1 changed files with 4 additions and 4 deletions
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8
sys/dev/tc/sfb.c
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@ -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 @@ sfb_common_init(struct rasops_info *ri)
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);