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PNX0101 changes:

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Make PNX0101-specific system.c and crt0.S.
Add new register names from LPC2880 user manual.
Add support for timer.
Enable CPU frequency changing. 


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12904 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Tomasz Malesinski 2007-03-24 19:26:13 +00:00
parent 7d9ff93b79
commit cd630c9e0a
12 changed files with 795 additions and 127 deletions
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20
firmware/kernel.c
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@ -594,23 +594,21 @@ void timer_handler(void)
current_tick++;
TIMERR0C = 1;
TIMER0.clr = 0;
}
void tick_start(unsigned int interval_in_ms)
{
TIMERR08 &= ~0x80;
TIMERR0C = 1;
TIMERR08 &= ~0x80;
TIMERR08 |= 0x40;
TIMERR00 = 3000000 * interval_in_ms / 1000;
TIMERR08 &= ~0xc;
TIMERR0C = 1;
TIMER0.ctrl &= ~0x80; /* Disable the counter */
TIMER0.ctrl |= 0x40; /* Reload after counting down to zero */
TIMER0.load = 3000000 * interval_in_ms / 1000;
TIMER0.ctrl &= ~0xc; /* No prescaler */
TIMER0.clr = 1; /* Clear the interrupt request */
irq_set_int_handler(4, timer_handler);
irq_enable_int(4);
irq_set_int_handler(IRQ_TIMER0, timer_handler);
irq_enable_int(IRQ_TIMER0);
TIMERR08 |= 0x80;
TIMER0.ctrl |= 0x80; /* Enable the counter */
}
#elif CONFIG_CPU == S3C2440
void tick_start(unsigned int interval_in_ms)