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Fix sc520 timer interrupt generation

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The current implementation has the timer being started before the interrupt
handler is installed. It the interrupt occurs before the handler is
installed, the timer interrupt is never reset and the timer stops

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
This commit is contained in:
Graeme Russ 2009-08-23 12:59:49 +10:00 committed by Tom Rix
parent 53c8b44a1f
commit a219983dc1
1 changed files with 3 additions and 3 deletions
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6
cpu/i386/sc520/sc520_timer.c
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@ -54,9 +54,6 @@ int timer_init(void)
write_mmcr_word (SC520_GPTMR1MAXCMPA, 100);
write_mmcr_word (SC520_GPTMR1CTL, 0xe009);
/* Clear the GP Timers status register */
write_mmcr_byte (SC520_GPTMRSTA, 0x07);
/* Register the SC520 specific timer interrupt handler */
register_timer_isr (sc520_timer_isr);
@ -64,6 +61,9 @@ int timer_init(void)
irq_install_handler (0, timer_isr, NULL);
unmask_irq (0);
/* Clear the GP Timer 1 status register to get the show rolling*/
write_mmcr_byte (SC520_GPTMRSTA, 0x02);
return 0;
}