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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
help
Enable support for nrfx SPI drivers for nRF MCU series.
if SPI_NRFX
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. Use this
option ONLY if you are certain that transactions with
RXD.MAXCNT == 1 and TXD.MAXCNT <= 1 will NOT be executed.
# Workaround for not being able to have commas in macro arguments
DT_COMPAT_NORDIC_NRF_SPI := nordic,nrf-spi
DT_COMPAT_NORDIC_NRF_SPIM := nordic,nrf-spim
DT_COMPAT_NORDIC_NRF_SPIS := nordic,nrf-spis
config SPI_0_NRF_SPI
def_bool $(dt_nodelabel_has_compat,spi0,$(DT_COMPAT_NORDIC_NRF_SPI))
select NRFX_SPI0
help
Enable nRF SPI Master without EasyDMA on port 0.
config SPI_0_NRF_SPIM
def_bool $(dt_nodelabel_has_compat,spi0,$(DT_COMPAT_NORDIC_NRF_SPIM))
# This driver is not available for nRF52832 because of Product Anomaly 58
# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
depends on (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
select NRFX_SPIM0
help
Enable nRF SPI Master with EasyDMA on port 0.
config SPI_0_NRF_SPIS
def_bool $(dt_nodelabel_has_compat,spi0,$(DT_COMPAT_NORDIC_NRF_SPIS))
depends on SPI_SLAVE
select NRFX_SPIS0
help
Enable nRF SPI Slave with EasyDMA on port 0.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
config SPI_0_NRF_ORC
hex "SPI Port 0 over-read character"
depends on SPI_0_NRF_SPI || SPI_0_NRF_SPIM || SPI_0_NRF_SPIS
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
config SPI_1_NRF_SPI
def_bool $(dt_nodelabel_has_compat,spi1,$(DT_COMPAT_NORDIC_NRF_SPI))
select NRFX_SPI1
help
Enable nRF SPI Master without EasyDMA on port 1.
config SPI_1_NRF_SPIM
def_bool $(dt_nodelabel_has_compat,spi1,$(DT_COMPAT_NORDIC_NRF_SPIM))
# This driver is not available for nRF52832 because of Product Anomaly 58
# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
depends on (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
select NRFX_SPIM1
help
Enable nRF SPI Master with EasyDMA on port 1.
config SPI_1_NRF_SPIS
def_bool $(dt_nodelabel_has_compat,spi1,$(DT_COMPAT_NORDIC_NRF_SPIS))
depends on SPI_SLAVE
select NRFX_SPIS1
help
Enable nRF SPI Slave with EasyDMA on port 1.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
config SPI_1_NRF_ORC
hex "SPI Port 1 over-read character"
depends on SPI_1_NRF_SPI || SPI_1_NRF_SPIM || SPI_1_NRF_SPIS
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
config SPI_2_NRF_SPI
def_bool $(dt_nodelabel_has_compat,spi2,$(DT_COMPAT_NORDIC_NRF_SPI))
select NRFX_SPI2
help
Enable nRF SPI Master without EasyDMA on port 2.
config SPI_2_NRF_SPIM
def_bool $(dt_nodelabel_has_compat,spi2,$(DT_COMPAT_NORDIC_NRF_SPIM))
# This driver is not available for nRF52832 because of Product Anomaly 58
# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
depends on (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
select NRFX_SPIM2
help
Enable nRF SPI Master with EasyDMA on port 2.
config SPI_2_NRF_SPIS
def_bool $(dt_nodelabel_has_compat,spi2,$(DT_COMPAT_NORDIC_NRF_SPIS))
depends on SPI_SLAVE
select NRFX_SPIS2
help
Enable nRF SPI Slave with EasyDMA on port 2.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
config SPI_2_NRF_ORC
hex "SPI Port 2 over-read character"
depends on SPI_2_NRF_SPI || SPI_2_NRF_SPIM || SPI_2_NRF_SPIS
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
config SPI_3_NRF_SPIM
def_bool $(dt_nodelabel_has_compat,spi3,$(DT_COMPAT_NORDIC_NRF_SPIM))
select NRFX_SPIM3
help
Enable nRF SPI Master with EasyDMA on port 3.
config SPI_3_NRF_SPIS
def_bool $(dt_nodelabel_has_compat,spi3,$(DT_COMPAT_NORDIC_NRF_SPIS))
depends on SPI_SLAVE
select NRFX_SPIS3
help
Enable nRF SPI Slave with EasyDMA on port 3.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
config SPI_3_NRF_ORC
hex "SPI Port 3 over-read character"
depends on SPI_3_NRF_SPIM || SPI_3_NRF_SPIS
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
config SPI_3_NRF_RX_DELAY
int "SPIM3 MISO sampling delay"
depends on SPI_3_NRF_SPIM && (SOC_NRF52833 || SOC_NRF52840)
range 0 7
default 2
help
Number of 64 MHz clock cycles (15.625 ns) delay from the sampling
edge of SCK (leading or trailing, depending on the CPHA setting used)
until the input serial data on MISO is actually sampled.
config SPI_4_NRF_SPIM
def_bool $(dt_nodelabel_has_compat,spi4,$(DT_COMPAT_NORDIC_NRF_SPIM))
select NRFX_SPIM4
help
Enable nRF SPI Master with EasyDMA on port 4.
config SPI_4_NRF_ORC
hex "SPI Port 4 over-read character"
depends on SPI_4_NRF_SPIM
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
config SPI_4_NRF_RX_DELAY
int "SPIM4 MISO sampling delay"
depends on SPI_4_NRF_SPIM && SOC_NRF5340_CPUAPP
range 0 7
default 2
help
Number of 64 MHz clock cycles (15.625 ns) delay from the sampling
edge of SCK (leading or trailing, depending on the CPHA setting used)
until the input serial data on MISO is actually sampled.
config SPI_NRFX_RAM_BUFFER_SIZE
int "Size of RAM buffers for SPIM peripherals"
default 8
depends on 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.
endif # SPI_NRFX