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m68knommu: fix profile timer

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I was looking at timers in the Coldfire system and I noticed that the
CONFIG_HIGHPROFILE option seems to be a little out of date.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matt Waddel 2008-02-14 19:31:27 -08:00 committed by Linus Torvalds
parent c25f0a0f7f
commit 6ef1e56776
1 changed files with 12 additions and 5 deletions
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17
arch/m68knommu/platform/coldfire/timers.c
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@ -148,25 +148,32 @@ irqreturn_t coldfire_profile_tick(int irq, void *dummy)
/* Reset ColdFire timer2 */ /* Reset ColdFire timer2 */
__raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, PA(MCFTIMER_TER)); __raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, PA(MCFTIMER_TER));
if (current->pid) if (current->pid)
profile_tick(CPU_PROFILING, regs); profile_tick(CPU_PROFILING);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
/***************************************************************************/ /***************************************************************************/
static struct irqaction coldfire_profile_irq = {
.name = "profile timer",
.flags = IRQF_DISABLED | IRQF_TIMER,
.handler = coldfire_profile_tick,
};
void coldfire_profile_init(void) void coldfire_profile_init(void)
{ {
printk(KERN_INFO "PROFILE: lodging TIMER2 @ %dHz as profile timer\n", PROFILEHZ); printk(KERN_INFO "PROFILE: lodging TIMER2 @ %dHz as profile timer\n",
PROFILEHZ);
setup_irq(mcf_profilevector, &coldfire_profile_irq);
/* Set up TIMER 2 as high speed profile clock */ /* Set up TIMER 2 as high speed profile clock */
__raw_writew(MCFTIMER_TMR_DISABLE, PA(MCFTIMER_TMR)); __raw_writew(MCFTIMER_TMR_DISABLE, PA(MCFTIMER_TMR));
__raw_writetrr(((MCF_CLK / 16) / PROFILEHZ), PA(MCFTIMER_TRR)); __raw_writetrr(((MCF_BUSCLK / 16) / PROFILEHZ), PA(MCFTIMER_TRR));
__raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 |
MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, PA(MCFTIMER_TMR)); MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, PA(MCFTIMER_TMR));
request_irq(mcf_profilevector, coldfire_profile_tick,
(IRQF_DISABLED | IRQ_FLG_FAST), "profile timer", NULL);
mcf_settimericr(2, 7); mcf_settimericr(2, 7);
} }