| # Copyright (c) 2017 - 2018, Nordic Semiconductor ASA |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| menuconfig SPI_NRFX |
| bool "nRF SPI nrfx drivers" |
| default y |
| depends on SOC_FAMILY_NRF |
| depends on MULTITHREADING |
| select PINCTRL |
| help |
| Enable support for nrfx SPI drivers for nRF MCU series. |
| |
| if SPI_NRFX |
| |
| config SPI_NRFX_SPI |
| def_bool y |
| depends on DT_HAS_NORDIC_NRF_SPI_ENABLED |
| select NRFX_SPI0 if HAS_HW_NRF_SPI0 |
| select NRFX_SPI1 if HAS_HW_NRF_SPI1 |
| select NRFX_SPI2 if HAS_HW_NRF_SPI2 |
| |
| config SPI_NRFX_SPIM |
| def_bool y |
| depends on DT_HAS_NORDIC_NRF_SPIM_ENABLED |
| select NRFX_SPIM0 if HAS_HW_NRF_SPIM0 |
| select NRFX_SPIM1 if HAS_HW_NRF_SPIM1 |
| select NRFX_SPIM2 if HAS_HW_NRF_SPIM2 |
| select NRFX_SPIM3 if HAS_HW_NRF_SPIM3 |
| select NRFX_SPIM4 if HAS_HW_NRF_SPIM4 |
| |
| config SPI_NRFX_SPIS |
| def_bool y |
| depends on DT_HAS_NORDIC_NRF_SPIS_ENABLED |
| select SPI_SLAVE |
| select NRFX_SPIS0 if HAS_HW_NRF_SPIS0 |
| select NRFX_SPIS1 if HAS_HW_NRF_SPIS1 |
| select NRFX_SPIS2 if HAS_HW_NRF_SPIS2 |
| select NRFX_SPIS3 if HAS_HW_NRF_SPIS3 |
| |
| config SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58 |
| depends on SOC_NRF52832 |
| bool "Allow enabling the SPIM driver despite PAN 58" |
| help |
| Allow enabling the nRF SPI Master with EasyDMA, despite |
| Product Anomaly Notice 58 (SPIM: An additional byte is |
| clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1). |
| Without this override, the SPI Master is only available |
| without EasyDMA. Note that the 'SPIM' and 'SPIS' drivers |
| use EasyDMA, while the 'SPI' driver does not. |
| When used in conjunction with nRF SPIM Devicetree property |
| 'anomaly-58-workaround' a workaround can be enabled per SPIM |
| instance. If you are certain that transactions with |
| RXD.MAXCNT == 1 and TXD.MAXCNT <= 1 will NOT be executed |
| then nRF52832 PPI and GPIOTE resources can be saved by not |
| enabling 'anomaly-58-workaround' via the Devicetree. |
| |
| config SPI_NRFX_RAM_BUFFER_SIZE |
| int "Size of RAM buffers for SPIM peripherals" |
| default 8 |
| depends on SPI_NRFX_SPIM |
| help |
| SPIM peripherals cannot transmit data directly from flash. Therefore, |
| a buffer in RAM needs to be provided for each instance of SPI driver |
| using SPIM peripheral, so that the driver can copy there a chunk of |
| data from flash and transmit it. |
| The size is specified in bytes. A size of 0 means that this feature |
| should be disabled, and the application must then take care of not |
| supplying buffers located in flash to the driver, otherwise such |
| transfers will fail. |
| |
| config SPI_NRFX_WAKE_TIMEOUT_US |
| int "Maximum time to wait for SPI slave to wake up" |
| default 200 |
| help |
| Maximum amount of time (in microseconds) that SPI master should wait |
| for SPI slave to wake up after the WAKE line is asserted. Used only |
| by instances that have the WAKE line configured (see the wake-gpios |
| devicetree property). |
| |
| endif # SPI_NRFX |