From ef9a74fc1a2ad5a528e94e6bf54f5c1f61c116f5 Mon Sep 17 00:00:00 2001 From: Stanislav Pankevich Date: Tue, 19 Mar 2024 10:34:57 +0100 Subject: arm/xilinx-zynqmp-rpu: Fix clock driver We observed a strange behavior of the 1Hz timer when running cFS on Zynq RPU. After some investigation, we reduced the error to the truncation issue. This patch fixes the issue. --- bsps/shared/dev/clock/xil-ttc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'bsps') diff --git a/bsps/shared/dev/clock/xil-ttc.c b/bsps/shared/dev/clock/xil-ttc.c index 2c47684045..5121773a6f 100644 --- a/bsps/shared/dev/clock/xil-ttc.c +++ b/bsps/shared/dev/clock/xil-ttc.c @@ -126,7 +126,7 @@ static void zynqmp_ttc_clock_driver_support_initialize_hardware(void) /* Setup match register to generate tick IRQ */ ttc_clock_instance.irq_match_interval = - (uint32_t) ((frequency * microsec_per_tick) / 1000000); + (uint32_t) (((uint64_t)frequency * microsec_per_tick) / 1000000); XTtcPs_WriteReg(BSP_SELECTED_TTC_ADDR, XTTCPS_MATCH_0_OFFSET, ttc_clock_instance.irq_match_interval); /* Clear interupts (clear on read) */ -- cgit v1.2.3