| # Copyright (c) 2016, Freescale Semiconductor, Inc. |
| # Copyright (c) 2017-2020, NXP |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config SPI_MCUX_FLEXCOMM |
| bool "MCUX FLEXCOMM SPI driver" |
| default y |
| depends on DT_HAS_NXP_LPC_SPI_ENABLED |
| select PINCTRL |
| select RESET |
| help |
| Enable support for mcux flexcomm spi driver. |
| |
| if SPI_MCUX_FLEXCOMM |
| config SPI_MCUX_FLEXCOMM_DMA |
| bool "MCUX FLEXCOMM SPI DMA Support" |
| select DMA |
| help |
| Enable the SPI DMA mode for SPI instances |
| that enable dma channels in their device tree node. |
| |
| config SPI_MCUX_FLEXCOMM_DMA_MAX_BLOCKS |
| int "MCUX FLEXCOMM SPI DMA Blocks Available" |
| range 2 100 |
| depends on SPI_MCUX_FLEXCOMM_DMA |
| default 6 |
| help |
| Specifies the number of DMA blocks available for SPI transfer. Enough |
| DMA blocks must be configured to handle all of the buffers in the |
| transfer buffer set. If tx and rx buffers are not the same size, an |
| additional block is needed for each set. A separate block is needed |
| for the last word so that a final one word buffer can be used to set the |
| end of transfer bit which will release the CS. |
| |
| endif # SPI_MCUX_FLEXCOMM |
