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drivers: can: add NXP LPC MCAN front-end for the Bosch MCAN driver

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Add a NXP LPC MCAN-specific front-end for the generic Bosch MCAN
driver.

Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
This commit is contained in:
Henrik Brix Andersen 2021-05-31 22:18:48 +02:00 • committed by Carles Cufí
commit 93c6b7413b
6 changed files with 319 additions and 7 deletions
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20
drivers/can/can_mcan.c
View file

@ -297,6 +297,24 @@ int can_mcan_init(const struct device *dev, const struct can_mcan_config *cfg,
(can->crel & CAN_MCAN_CREL_DAY) >> CAN_MCAN_CREL_DAY_POS);
#ifndef CONFIG_CAN_STM32FD
#ifdef CONFIG_CAN_MCUX_MCAN
uint32_t mrba = (uint32_t)msg_ram & CAN_MCAN_MRBA_BA_MSK;
can->mrba = mrba;
can->sidfc = (((uint32_t)msg_ram->std_filt - mrba) & CAN_MCAN_SIDFC_FLSSA_MSK) |
(ARRAY_SIZE(msg_ram->std_filt) << CAN_MCAN_SIDFC_LSS_POS);
can->xidfc = (((uint32_t)msg_ram->ext_filt - mrba) & CAN_MCAN_XIDFC_FLESA_MSK) |
(ARRAY_SIZE(msg_ram->ext_filt) << CAN_MCAN_XIDFC_LSS_POS);
can->rxf0c = (((uint32_t)msg_ram->rx_fifo0 - mrba) & CAN_MCAN_RXF0C_F0SA) |
(ARRAY_SIZE(msg_ram->rx_fifo0) << CAN_MCAN_RXF0C_F0S_POS);
can->rxf1c = (((uint32_t)msg_ram->rx_fifo1 - mrba) & CAN_MCAN_RXF1C_F1SA) |
(ARRAY_SIZE(msg_ram->rx_fifo1) << CAN_MCAN_RXF1C_F1S_POS);
can->rxbc = (((uint32_t)msg_ram->rx_buffer - mrba) & CAN_MCAN_RXBC_RBSA);
can->txefc = (((uint32_t)msg_ram->tx_event_fifo - mrba) & CAN_MCAN_TXEFC_EFSA_MSK) |
(ARRAY_SIZE(msg_ram->tx_event_fifo) << CAN_MCAN_TXEFC_EFS_POS);
can->txbc = (((uint32_t)msg_ram->tx_buffer - mrba) & CAN_MCAN_TXBC_TBSA_MSK) |
(ARRAY_SIZE(msg_ram->tx_buffer) << CAN_MCAN_TXBC_TFQS_POS);
#else /* CONFIG_CAN_MCUX_MCAN */
can->sidfc = ((uint32_t)msg_ram->std_filt & CAN_MCAN_SIDFC_FLSSA_MSK) |
(ARRAY_SIZE(msg_ram->std_filt) << CAN_MCAN_SIDFC_LSS_POS);
can->xidfc = ((uint32_t)msg_ram->ext_filt & CAN_MCAN_XIDFC_FLESA_MSK) |
@ -311,6 +329,8 @@ int can_mcan_init(const struct device *dev, const struct can_mcan_config *cfg,
CAN_MCAN_TXEFC_EFS_POS);
can->txbc = ((uint32_t)msg_ram->tx_buffer & CAN_MCAN_TXBC_TBSA) |
(ARRAY_SIZE(msg_ram->tx_buffer) << CAN_MCAN_TXBC_TFQS_POS);
#endif /* !CONFIG_CAN_MCUX_MCAN */
if (sizeof(msg_ram->tx_buffer[0].data) <= 24) {
can->txesc = (sizeof(msg_ram->tx_buffer[0].data) - 8) / 4;
} else {