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drivers: can: mcux: flexcan: calculate and set proper TDCO 

Calculate and set a proper Transceiver Delay Compensation Offset (TDCO)
based on FlexCAN FD timing.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2024-06-05 15:43:58 +00:00 committed by Carles Cufí
parent 7b207e309f
commit 633065ec3b
1 changed files with 6 additions and 0 deletions
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6
drivers/can/can_mcux_flexcan.c
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@ -305,6 +305,12 @@ static int mcux_flexcan_start(const struct device *dev)
timing.fphaseSeg2 = data->timing_data.phase_seg2 - 1U; timing.fphaseSeg2 = data->timing_data.phase_seg2 - 1U;
timing.fpropSeg = data->timing_data.prop_seg; timing.fpropSeg = data->timing_data.prop_seg;
FLEXCAN_SetFDTimingConfig(config->base, &timing); FLEXCAN_SetFDTimingConfig(config->base, &timing);
FLEXCAN_EnterFreezeMode(config->base);
config->base->FDCTRL &= ~(CAN_FDCTRL_TDCOFF_MASK);
config->base->FDCTRL |= FIELD_PREP(CAN_FDCTRL_TDCOFF_MASK,
CAN_CALC_TDCO((&data->timing_data), 1U, 31U));
FLEXCAN_ExitFreezeMode(config->base);
} }
#endif /* CONFIG_CAN_MCUX_FLEXCAN_FD */ #endif /* CONFIG_CAN_MCUX_FLEXCAN_FD */