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arm/xilinx-zynqmp-rpu: Fix clock driver

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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.
This commit is contained in:
Stanislav Pankevich
2024-03-19 10:34:57 +01:00
committed by Sebastian Huber
parent 9c84037e93
commit ef9a74fc1a
1 changed files with 1 additions and 1 deletions
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2
bsps/shared/dev/clock/xil-ttc.c
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@@ -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) */