From bd7bef528db094914cefef040ddca6c5a0e963d1 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 8 Dec 2020 07:56:53 +0100 Subject: bsps/arm: Support system level ARM Generic Timer Update #4202. --- bsps/shared/dev/clock/arm-generic-timer.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'bsps/shared/dev/clock') diff --git a/bsps/shared/dev/clock/arm-generic-timer.c b/bsps/shared/dev/clock/arm-generic-timer.c index f0f29e706f..3046c53a46 100644 --- a/bsps/shared/dev/clock/arm-generic-timer.c +++ b/bsps/shared/dev/clock/arm-generic-timer.c @@ -138,11 +138,22 @@ CPU_Counter_ticks _CPU_Counter_read(void) return (uint32_t) arm_gt_clock_get_count(); } +static void arm_gt_system_init(void) +{ +#ifdef ARM_GENERIC_TIMER_SYSTEM_BASE + volatile uint32_t *cntcr; + + cntcr = (volatile uint32_t *) ARM_GENERIC_TIMER_SYSTEM_BASE; + *cntcr = ARM_GENERIC_TIMER_SYSTEM_CNTCR; +#endif +} + static void arm_gt_clock_early_init(void) { uint32_t frequency; - arm_gt_clock_set_control(0x3); + arm_gt_system_init(); + arm_gt_clock_set_control(0x3); arm_generic_timer_get_config( &frequency, &arm_gt_clock_instance.irq -- cgit v1.2.3