From dfe7901c7fd5526c6f488df71f1072f867904534 Mon Sep 17 00:00:00 2001 From: Daniel Hellstrom Date: Tue, 29 Oct 2019 15:17:57 +0100 Subject: 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. --- bsps/sparc/leon3/start/cpucounter.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/bsps/sparc/leon3/start/cpucounter.c b/bsps/sparc/leon3/start/cpucounter.c index 1d96e3b221..068c631af1 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); -- cgit v1.2.3