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blackfin: bf60x: enable gptimer clock source

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Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
This commit is contained in:
Steven Miao
2012-05-16 18:11:10 +08:00
committed by Bob Liu
parent e578bbdeb8
commit 2879bb30d7
3 changed files with 211 additions and 3 deletions
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83
arch/blackfin/kernel/gptimers.c
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@@ -23,7 +23,11 @@
printk(KERN_DEBUG "%s:%s:%i: Assertion failed: " #expr "\n", __FILE__, __func__, __LINE__);
#endif
#define BFIN_TIMER_NUM_GROUP (BFIN_TIMER_OCTET(MAX_BLACKFIN_GPTIMERS - 1) + 1)
#ifndef CONFIG_BF60x
# define BFIN_TIMER_NUM_GROUP (BFIN_TIMER_OCTET(MAX_BLACKFIN_GPTIMERS - 1) + 1)
#else
# define BFIN_TIMER_NUM_GROUP 1
#endif
static struct bfin_gptimer_regs * const timer_regs[MAX_BLACKFIN_GPTIMERS] =
{
@@ -158,6 +162,74 @@ uint32_t get_gptimer_count(unsigned int timer_id)
}
EXPORT_SYMBOL(get_gptimer_count);
#ifdef CONFIG_BF60x
void set_gptimer_delay(unsigned int timer_id, uint32_t delay)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
bfin_write(&timer_regs[timer_id]->delay, delay);
SSYNC();
}
EXPORT_SYMBOL(set_gptimer_delay);
uint32_t get_gptimer_delay(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
return bfin_read(&timer_regs[timer_id]->delay);
}
EXPORT_SYMBOL(get_gptimer_delay);
#endif
#ifdef CONFIG_BF60x
int get_gptimer_intr(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
return !!(bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->data_ilat) & timil_mask[timer_id]);
}
EXPORT_SYMBOL(get_gptimer_intr);
void clear_gptimer_intr(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->data_ilat, timil_mask[timer_id]);
}
EXPORT_SYMBOL(clear_gptimer_intr);
int get_gptimer_over(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
return !!(bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->stat_ilat) & tovf_mask[timer_id]);
}
EXPORT_SYMBOL(get_gptimer_over);
void clear_gptimer_over(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
bfin_write(&group_regs[BFIN_TIMER_OCTET(timer_id)]->stat_ilat, tovf_mask[timer_id]);
}
EXPORT_SYMBOL(clear_gptimer_over);
int get_gptimer_run(unsigned int timer_id)
{
tassert(timer_id < MAX_BLACKFIN_GPTIMERS);
return !!(bfin_read(&group_regs[BFIN_TIMER_OCTET(timer_id)]->run) & trun_mask[timer_id]);
}
EXPORT_SYMBOL(get_gptimer_run);
uint32_t get_gptimer_status(unsigned int group)
{
tassert(group < BFIN_TIMER_NUM_GROUP);
return bfin_read(&group_regs[group]->data_ilat);
}
EXPORT_SYMBOL(get_gptimer_status);
void set_gptimer_status(unsigned int group, uint32_t value)
{
tassert(group < BFIN_TIMER_NUM_GROUP);
bfin_write(&group_regs[group]->data_ilat, value);
SSYNC();
}
EXPORT_SYMBOL(set_gptimer_status);
#else
uint32_t get_gptimer_status(unsigned int group)
{
tassert(group < BFIN_TIMER_NUM_GROUP);
@@ -212,6 +284,7 @@ int get_gptimer_run(unsigned int timer_id)
return !!(read_gptimer_status(timer_id) & trun_mask[timer_id]);
}
EXPORT_SYMBOL(get_gptimer_run);
#endif
void set_gptimer_config(unsigned int timer_id, uint16_t config)
{
@@ -231,6 +304,12 @@ EXPORT_SYMBOL(get_gptimer_config);
void enable_gptimers(uint16_t mask)
{
int i;
#ifdef CONFIG_BF60x
uint16_t imask;
imask = bfin_read16(TIMER_DATA_IMSK);
imask &= ~mask;
bfin_write16(TIMER_DATA_IMSK, imask);
#endif
tassert((mask & ~BLACKFIN_GPTIMER_IDMASK) == 0);
for (i = 0; i < BFIN_TIMER_NUM_GROUP; ++i) {
bfin_write(&group_regs[i]->enable, mask & 0xFF);
@@ -255,10 +334,12 @@ void disable_gptimers(uint16_t mask)
{
int i;
_disable_gptimers(mask);
#ifndef CONFIG_BF60x
for (i = 0; i < MAX_BLACKFIN_GPTIMERS; ++i)
if (mask & (1 << i))
bfin_write(&group_regs[BFIN_TIMER_OCTET(i)]->status, trun_mask[i]);
SSYNC();
#endif
}
EXPORT_SYMBOL(disable_gptimers);