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Fix sc520 timer interrupt generation 

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 Wolfgang Denk
parent f3a8d6b29b
commit 04ff9ab158
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;
}