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| author | Stanislav Pankevich <stanislav@reflexaerospace.com> | 2024-03-19 10:34:57 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2024-03-19 13:25:16 +0100 |
| commit | ef9a74fc1a2ad5a528e94e6bf54f5c1f61c116f5 (patch) | |
| tree | d177ab1ae1dffa1d5e427585486b0d001126e06f | |
| parent | cpukit: Gate ticks per timeslice config (diff) | |
| download | rtems-ef9a74fc1a2ad5a528e94e6bf54f5c1f61c116f5.tar.bz2 | |
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.
| -rw-r--r-- | bsps/shared/dev/clock/xil-ttc.c | 2 |
1 files changed, 1 insertions, 1 deletions
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) */ |