[src/trunk]: src/sys/arch/x68k/x68k With the freerunnnig mode, set 0 (=256cou...

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

details:   https://anonhg.NetBSD.org/src/rev/64c8ab1121bc
branches:  trunk
changeset: 779353:64c8ab1121bc
user:      isaki <isaki%NetBSD.org@localhost>
date:      Tue May 22 04:03:03 2012 +0000

description:
With the freerunnnig mode, set 0 (=256count) not 0xff (=255count)
in Timer-D.  It fixes the clock ticked faster when timecounter uses
"mfp" (as default choice).  It was introduced in rev 1.24 in 2006.
Thanks tsutsui@ for many comments.
Should be pulled up to netbsd-6 and netbsd-5.

diffstat:

 sys/arch/x68k/x68k/clock.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 25baeab10ec2 -r 64c8ab1121bc sys/arch/x68k/x68k/clock.c
--- a/sys/arch/x68k/x68k/clock.c        Tue May 22 02:40:05 2012 +0000
+++ b/sys/arch/x68k/x68k/clock.c        Tue May 22 04:03:03 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: clock.c,v 1.33 2011/02/08 20:20:26 rmind Exp $ */
+/*     $NetBSD: clock.c,v 1.34 2012/05/22 04:03:03 isaki Exp $ */
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -39,7 +39,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.33 2011/02/08 20:20:26 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: clock.c,v 1.34 2012/05/22 04:03:03 isaki Exp $");
 
 #include "clock.h"
 
@@ -143,7 +143,7 @@
        mfp_set_tcdr(CLOCKS_PER_SEC / hz);
        mfp_bit_set_ierb(MFP_INTR_TIMER_C);
 
-       mfp_set_tddr(0xff);     /* maximum free run -- only 8 bits wide */
+       mfp_set_tddr(0);        /* maximum free run -- only 8 bits wide */
        mfp_set_tcdcr(mfp_get_tcdcr() | 0x07);  /* 1/200 prescaler */
 
        tc_init(&tc);