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Get CLOCKBASE from opt_ppcparam.h.

This commit is contained in:
matt 2003-03-17 23:24:41 +00:00
parent ecc8926154
commit 0fb35cae8c
1 changed files with 8 additions and 11 deletions
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19
sys/arch/evbppc/ev64260/clock.c
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@ -1,4 +1,4 @@
/* $NetBSD: clock.c,v 1.3 2003/03/16 08:12:26 matt Exp $ */
/* $NetBSD: clock.c,v 1.4 2003/03/17 23:24:41 matt Exp $ */
/*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
@ -31,6 +31,7 @@
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "opt_ppcparam.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
@ -51,8 +52,8 @@ struct stop_time stop_time;
* Initially we assume a processor with a bus frequency of 12.5 MHz.
*/
u_long tbhz = 0; /* global timebase ticks/sec */
u_long ticks_per_sec = 12500000;
u_long ns_per_tick = 80;
u_long ticks_per_sec = 25000000;
u_long ns_per_tick = 40;
static long ticks_per_intr;
#if NRTC > 0
@ -321,24 +322,20 @@ void calc_delayconst(void);
void
calc_delayconst()
{
int omsr;
/*
* Get this info during autoconf? XXX
*/
tbhz = 100000000; /* 100 MHz */
ticks_per_sec = tbhz / 4; /* decr 1:4 */
if (tbhz == 0)
panic("AFW_tbhz");
#ifdef CLOCKBASE
ticks_per_sec = CLOCKBASE / 4; /* from config file */
#endif
cpu_timebase = ticks_per_sec;
/*
* Should check for correct CPU here? XXX
*/
omsr = extintr_disable();
ns_per_tick = 1000000000 / ticks_per_sec;
ticks_per_intr = ticks_per_sec / hz;
curcpu()->ci_lasttb = mftb();
__asm __volatile ("mtdec %0" :: "r"(ticks_per_intr));
extintr_restore(omsr);
}
/*