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Stabilize PP5020 targets - tested on H10 5/20GB and iPod Color. Use no interrupts on COP but pulse it through the control interface. Don't mess with LCD clocking during clock changes. Give a reset register a name (DEV_OFF_MASK).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14998 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2007-10-05 23:24:46 +00:00
parent c27ae40ca2
commit 18e87ff1c0
4 changed files with 48 additions and 46 deletions
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66
firmware/kernel.c
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@ -44,22 +44,18 @@ static int num_queues NOCACHEBSS_ATTR;
void kernel_init(void)
{
/* Init the threading API */
#if NUM_CORES > 1
if (CURRENT_CORE == COP)
{
/* This enables the interrupt but it won't be active until
the timer is actually started and interrupts are unmasked */
tick_start(1000/HZ);
}
#endif
init_threads();
/* No processor other than the CPU will proceed here */
memset(tick_funcs, 0, sizeof(tick_funcs));
num_queues = 0;
memset(all_queues, 0, sizeof(all_queues));
tick_start(1000/HZ);
/* Other processors will not reach this point in a multicore build.
* In a single-core build with multiple cores they fall-through and
* sleep in cop_main without returning. */
if (CURRENT_CORE == CPU)
{
memset(tick_funcs, 0, sizeof(tick_funcs));
num_queues = 0;
memset(all_queues, 0, sizeof(all_queues));
tick_start(1000/HZ);
}
}
void sleep(int ticks)
@ -573,8 +569,8 @@ void TIMER1(void)
TIMER1_VAL; /* Read value to ack IRQ */
/* Run through the list of tick tasks (using main core -
COP does not dispatch ticks to this subroutine) */
/* Run through the list of tick tasks using main CPU core -
wake up the COP through its control interface to provide pulse */
for (i = 0;i < MAX_NUM_TICK_TASKS;i++)
{
if (tick_funcs[i])
@ -583,6 +579,27 @@ void TIMER1(void)
}
}
#if NUM_CORES > 1
#ifdef CPU_PP502x
{
/* If COP is sleeping - give it a kick */
/* TODO: Use a mailbox in addition to make sure it doesn't go to
* sleep if kicked just as it's headed to rest to make sure its
* tick checks won't be jittery. Don't bother at all if it owns no
* threads. */
unsigned int cop_ctl;
cop_ctl = COP_CTL;
if (cop_ctl & PROC_SLEEP)
{
COP_CTL = cop_ctl & ~PROC_SLEEP;
}
}
#else
/* TODO: PP5002 */
#endif
#endif /* NUM_CORES */
current_tick++;
}
#endif
@ -591,17 +608,12 @@ void TIMER1(void)
void tick_start(unsigned int interval_in_ms)
{
#ifndef BOOTLOADER
if(CURRENT_CORE == CPU)
{
TIMER1_CFG = 0x0;
TIMER1_VAL;
/* enable timer */
TIMER1_CFG = 0xc0000000 | (interval_in_ms*1000 - 1);
/* unmask interrupt source */
CPU_INT_EN = TIMER1_MASK;
} else {
COP_INT_EN = TIMER1_MASK;
}
TIMER1_CFG = 0x0;
TIMER1_VAL;
/* enable timer */
TIMER1_CFG = 0xc0000000 | (interval_in_ms*1000 - 1);
/* unmask interrupt source */
CPU_INT_EN = TIMER1_MASK;
#else
/* We don't enable interrupts in the bootloader */
(void)interval_in_ms;