diff options
| author | Daniel Hellstrom <daniel@gaisler.com> | 2019-10-29 15:17:57 +0100 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2021-03-07 16:08:25 +0100 |
| commit | cb8379dc0915c10960a0923a9869e98869e410bd (patch) | |
| tree | 53a70bf24ba141068fecfe9327c5acadf85b49d2 /bsps | |
| parent | leon,ckinit: avoid assuming 1MHz timer pre-scaler clock (diff) | |
| download | rtems-cb8379dc0915c10960a0923a9869e98869e410bd.tar.bz2 | |
leon: restart and load timer counter at initialization
Without this smp05 and smpthreadlife01 tests may fail
depending on how the boot loader initialized the GPTIMER.
Before the time counter stopped counting when reaching
zero, but tests could work since it could take 2^32 us
before stopping.
The timer driver will potentially overwrite this, but it
happens later due to the initialization order having
RTEMS_SYSINIT_CPU_COUNTER very early.
Update #4312.
Diffstat (limited to 'bsps')
| -rw-r--r-- | bsps/sparc/leon3/start/cpucounter.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/bsps/sparc/leon3/start/cpucounter.c b/bsps/sparc/leon3/start/cpucounter.c index 007bb6d8ec..4a0a5fe116 100644 --- a/bsps/sparc/leon3/start/cpucounter.c +++ b/bsps/sparc/leon3/start/cpucounter.c @@ -60,7 +60,10 @@ static void leon3_counter_initialize(void) counter->counter_register = &gpt->timer[LEON3_COUNTER_GPTIMER_INDEX].value; /* Enable timer just in case no clock driver is configured */ - gpt->timer[LEON3_COUNTER_GPTIMER_INDEX].ctrl |= GPTIMER_TIMER_CTRL_EN; + gpt->timer[LEON3_COUNTER_GPTIMER_INDEX].reload = 0xffffffff; + gpt->timer[LEON3_COUNTER_GPTIMER_INDEX].ctrl |= GPTIMER_TIMER_CTRL_EN | + GPTIMER_TIMER_CTRL_RS | + GPTIMER_TIMER_CTRL_LD; leon3_counter_frequency = ambapp_freq_get(&ambapp_plb, LEON3_Timer_Adev) / (gpt->scaler_reload + 1); |