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# 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
select NRFX_SPIM00 if HAS_HW_NRF_SPIM00
select NRFX_SPIM20 if HAS_HW_NRF_SPIM20
select NRFX_SPIM21 if HAS_HW_NRF_SPIM21
select NRFX_SPIM22 if HAS_HW_NRF_SPIM22
select NRFX_SPIM30 if HAS_HW_NRF_SPIM30
select NRFX_SPIM120 if HAS_HW_NRF_SPIM120
select NRFX_SPIM121 if HAS_HW_NRF_SPIM121
select NRFX_SPIM130 if HAS_HW_NRF_SPIM130
select NRFX_SPIM131 if HAS_HW_NRF_SPIM131
select NRFX_SPIM132 if HAS_HW_NRF_SPIM132
select NRFX_SPIM133 if HAS_HW_NRF_SPIM133
select NRFX_SPIM134 if HAS_HW_NRF_SPIM134
select NRFX_SPIM135 if HAS_HW_NRF_SPIM135
select NRFX_SPIM136 if HAS_HW_NRF_SPIM136
select NRFX_SPIM137 if HAS_HW_NRF_SPIM137
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
select NRFX_PPI
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
Because of using EasyDMA, SPIM peripherals cannot use transmit and
receive buffers from all memory locations. They are restricted to
buffers located in certain RAM memories only. Therefore, each SPIM
driver instance needs to use an intermediate local RAM buffer,
to transfer data in chunks not exceeding the size of that buffer,
and to copy those chunks between the local buffer and the one
specified in the transfer request if the latter is not accessible
by EasyDMA.
This option specifies the size in bytes of such local RAM buffers
for both TX and RX paths. A size of 0 means that this feature should
be disabled and the driver user must take care of not making transfer
requests with buffers not accessible by EasyDMA since 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