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Diffstat (limited to 'bsps/sparc/leon3/start/cpucounter.c')
-rw-r--r--bsps/sparc/leon3/start/cpucounter.c46
1 files changed, 32 insertions, 14 deletions
diff --git a/bsps/sparc/leon3/start/cpucounter.c b/bsps/sparc/leon3/start/cpucounter.c
index 374e43c9b1..61b767568d 100644
--- a/bsps/sparc/leon3/start/cpucounter.c
+++ b/bsps/sparc/leon3/start/cpucounter.c
@@ -38,28 +38,38 @@
#include <rtems/counter.h>
#include <rtems/sysinit.h>
+#include <rtems/timecounter.h>
#include <bsp/sparc-counter.h>
-static uint32_t leon3_counter_frequency = 1000000000;
+struct timecounter leon3_timecounter_instance = {
+ .tc_counter_mask = 0xffffffff,
+ .tc_frequency = 1000000000,
+ .tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER
+};
uint32_t _CPU_Counter_frequency(void)
{
- return leon3_counter_frequency;
+ return leon3_timecounter_instance.tc_frequency;
}
#if defined(LEON3_HAS_ASR_22_23_UP_COUNTER) || \
defined(LEON3_PROBE_ASR_22_23_UP_COUNTER)
-static void leon3_counter_use_up_counter(SPARC_Counter *counter)
+static void leon3_counter_use_up_counter(
+ struct timecounter *tc,
+ SPARC_Counter *counter
+)
{
counter->read_isr_disabled = _SPARC_Counter_read_asr23;
counter->read = _SPARC_Counter_read_asr23;
- leon3_counter_frequency = leon3_up_counter_frequency();
+ tc->tc_get_timecount = _SPARC_Get_timecount_asr23;
+ tc->tc_frequency = leon3_up_counter_frequency();
}
#endif
#if defined(LEON3_IRQAMP_PROBE_TIMESTAMP)
static void leon3_counter_use_irqamp_timestamp(
+ struct timecounter *tc,
SPARC_Counter *counter,
irqamp_timestamp *irqmp_ts
)
@@ -71,16 +81,21 @@ static void leon3_counter_use_irqamp_timestamp(
/* Enable interrupt timestamping for an arbitrary interrupt line */
grlib_store_32(&irqmp_ts->itstmpc, IRQAMP_ITSTMPC_TSISEL(1));
+ tc->tc_get_timecount = _SPARC_Get_timecount_up;
#if defined(LEON3_PLB_FREQUENCY_DEFINED_BY_GPTIMER)
- leon3_counter_frequency = leon3_processor_local_bus_frequency();
+ tc->tc_frequency = leon3_processor_local_bus_frequency();
#else
- leon3_counter_frequency = ambapp_freq_get(ambapp_plb(), LEON3_IrqCtrl_Adev);
+ tc->tc_frequency = ambapp_freq_get(ambapp_plb(), LEON3_IrqCtrl_Adev);
#endif
}
#endif
#if !defined(LEON3_HAS_ASR_22_23_UP_COUNTER)
-static void leon3_counter_use_gptimer(SPARC_Counter *counter, gptimer *gpt)
+static void leon3_counter_use_gptimer(
+ struct timecounter *tc,
+ SPARC_Counter *counter,
+ gptimer *gpt
+)
{
gptimer_timer *timer;
@@ -93,10 +108,11 @@ static void leon3_counter_use_gptimer(SPARC_Counter *counter, gptimer *gpt)
grlib_store_32(&timer->trldval, 0xffffffff);
grlib_store_32(&timer->tctrl, GPTIMER_TCTRL_EN | GPTIMER_TCTRL_RS);
+ tc->tc_get_timecount = _SPARC_Get_timecount_down;
#if defined(LEON3_PLB_FREQUENCY_DEFINED_BY_GPTIMER)
- leon3_counter_frequency = LEON3_GPTIMER_0_FREQUENCY_SET_BY_BOOT_LOADER;
+ tc->tc_frequency = LEON3_GPTIMER_0_FREQUENCY_SET_BY_BOOT_LOADER;
#else
- leon3_counter_frequency = ambapp_freq_get(ambapp_plb(), LEON3_Timer_Adev) /
+ tc->tc_frequency = ambapp_freq_get(ambapp_plb(), LEON3_Timer_Adev) /
(grlib_load_32(&gpt->sreload) + 1);
#endif
}
@@ -110,20 +126,22 @@ static void leon3_counter_initialize(void)
#if !defined(LEON3_HAS_ASR_22_23_UP_COUNTER)
gptimer *gpt;
#endif
+ struct timecounter *tc;
SPARC_Counter *counter;
+ tc = &leon3_timecounter_instance;
counter = &_SPARC_Counter;
#if defined(LEON3_HAS_ASR_22_23_UP_COUNTER)
leon3_up_counter_enable();
- leon3_counter_use_up_counter(counter);
+ leon3_counter_use_up_counter(tc, counter);
#else /* LEON3_HAS_ASR_22_23_UP_COUNTER */
#if defined(LEON3_PROBE_ASR_22_23_UP_COUNTER)
leon3_up_counter_enable();
if (leon3_up_counter_is_available()) {
/* Use the LEON4 up-counter if available */
- leon3_counter_use_up_counter(counter);
+ leon3_counter_use_up_counter(tc, counter);
return;
}
#endif
@@ -133,7 +151,7 @@ static void leon3_counter_initialize(void)
if (irqmp_ts != NULL) {
/* Use the interrupt controller timestamp counter if available */
- leon3_counter_use_irqamp_timestamp(counter, irqmp_ts);
+ leon3_counter_use_irqamp_timestamp(tc, counter, irqmp_ts);
return;
}
#endif
@@ -141,11 +159,11 @@ static void leon3_counter_initialize(void)
gpt = LEON3_Timer_Regs;
#if defined(LEON3_GPTIMER_BASE)
- leon3_counter_use_gptimer(counter, gpt);
+ leon3_counter_use_gptimer(tc, counter, gpt);
#else
if (gpt != NULL) {
/* Fall back to the first GPTIMER if available */
- leon3_counter_use_gptimer(counter, gpt);
+ leon3_counter_use_gptimer(tc, counter, gpt);
}
#endif
#endif /* LEON3_HAS_ASR_22_23_UP_COUNTER */