207 lines
6.9 KiB
Plaintext
207 lines
6.9 KiB
Plaintext
# Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
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# SPDX-License-Identifier: Apache-2.0
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menuconfig SPI_NRFX
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bool "nRF SPI nrfx drivers"
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default y
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depends on SOC_FAMILY_NRF
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help
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Enable support for nrfx SPI drivers for nRF MCU series.
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if SPI_NRFX
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config SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58
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depends on SOC_NRF52832
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bool "Allow enabling the SPIM driver despite PAN 58"
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help
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Allow enabling the nRF SPI Master with EasyDMA, despite
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Product Anomaly Notice 58 (SPIM: An additional byte is
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clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1).
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Without this override, the SPI Master is only available
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without EasyDMA. Note that the 'SPIM' and 'SPIS' drivers
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use EasyDMA, while the 'SPI' driver does not. Use this
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option ONLY if you are certain that transactions with
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RXD.MAXCNT == 1 and TXD.MAXCNT <= 1 will NOT be executed.
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# Workaround for not being able to have commas in macro arguments
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DT_COMPAT_NORDIC_NRF_SPI := nordic,nrf-spi
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DT_COMPAT_NORDIC_NRF_SPIM := nordic,nrf-spim
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DT_COMPAT_NORDIC_NRF_SPIS := nordic,nrf-spis
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config SPI_0_NRF_SPI
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def_bool $(dt_nodelabel_has_compat,spi0,$(DT_COMPAT_NORDIC_NRF_SPI))
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select NRFX_SPI0
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help
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Enable nRF SPI Master without EasyDMA on port 0.
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config SPI_0_NRF_SPIM
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def_bool $(dt_nodelabel_has_compat,spi0,$(DT_COMPAT_NORDIC_NRF_SPIM))
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# This driver is not available for nRF52832 because of Product Anomaly 58
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# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
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# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
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depends on (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
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select NRFX_SPIM0
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help
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Enable nRF SPI Master with EasyDMA on port 0.
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config SPI_0_NRF_SPIS
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def_bool $(dt_nodelabel_has_compat,spi0,$(DT_COMPAT_NORDIC_NRF_SPIS))
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depends on SPI_SLAVE
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select NRFX_SPIS0
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help
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Enable nRF SPI Slave with EasyDMA on port 0.
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Due to hardware limitations the implementation supports only simple
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buffers (consisting of one part) located in RAM.
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config SPI_0_NRF_ORC
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hex "SPI Port 0 over-read character"
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depends on SPI_0_NRF_SPI || SPI_0_NRF_SPIM || SPI_0_NRF_SPIS
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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config SPI_1_NRF_SPI
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def_bool $(dt_nodelabel_has_compat,spi1,$(DT_COMPAT_NORDIC_NRF_SPI))
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select NRFX_SPI1
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help
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Enable nRF SPI Master without EasyDMA on port 1.
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config SPI_1_NRF_SPIM
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def_bool $(dt_nodelabel_has_compat,spi1,$(DT_COMPAT_NORDIC_NRF_SPIM))
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# This driver is not available for nRF52832 because of Product Anomaly 58
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# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
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# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
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depends on (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
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select NRFX_SPIM1
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help
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Enable nRF SPI Master with EasyDMA on port 1.
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config SPI_1_NRF_SPIS
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def_bool $(dt_nodelabel_has_compat,spi1,$(DT_COMPAT_NORDIC_NRF_SPIS))
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depends on SPI_SLAVE
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select NRFX_SPIS1
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help
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Enable nRF SPI Slave with EasyDMA on port 1.
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Due to hardware limitations the implementation supports only simple
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buffers (consisting of one part) located in RAM.
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config SPI_1_NRF_ORC
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hex "SPI Port 1 over-read character"
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depends on SPI_1_NRF_SPI || SPI_1_NRF_SPIM || SPI_1_NRF_SPIS
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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config SPI_2_NRF_SPI
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def_bool $(dt_nodelabel_has_compat,spi2,$(DT_COMPAT_NORDIC_NRF_SPI))
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select NRFX_SPI2
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help
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Enable nRF SPI Master without EasyDMA on port 2.
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config SPI_2_NRF_SPIM
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def_bool $(dt_nodelabel_has_compat,spi2,$(DT_COMPAT_NORDIC_NRF_SPIM))
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# This driver is not available for nRF52832 because of Product Anomaly 58
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# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
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# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
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depends on (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
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select NRFX_SPIM2
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help
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Enable nRF SPI Master with EasyDMA on port 2.
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config SPI_2_NRF_SPIS
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def_bool $(dt_nodelabel_has_compat,spi2,$(DT_COMPAT_NORDIC_NRF_SPIS))
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depends on SPI_SLAVE
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select NRFX_SPIS2
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help
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Enable nRF SPI Slave with EasyDMA on port 2.
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Due to hardware limitations the implementation supports only simple
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buffers (consisting of one part) located in RAM.
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config SPI_2_NRF_ORC
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hex "SPI Port 2 over-read character"
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depends on SPI_2_NRF_SPI || SPI_2_NRF_SPIM || SPI_2_NRF_SPIS
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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config SPI_3_NRF_SPIM
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def_bool $(dt_nodelabel_has_compat,spi3,$(DT_COMPAT_NORDIC_NRF_SPIM))
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select NRFX_SPIM3
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help
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Enable nRF SPI Master with EasyDMA on port 3.
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config SPI_3_NRF_SPIS
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def_bool $(dt_nodelabel_has_compat,spi3,$(DT_COMPAT_NORDIC_NRF_SPIS))
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depends on SPI_SLAVE
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select NRFX_SPIS3
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help
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Enable nRF SPI Slave with EasyDMA on port 3.
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Due to hardware limitations the implementation supports only simple
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buffers (consisting of one part) located in RAM.
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config SPI_3_NRF_ORC
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hex "SPI Port 3 over-read character"
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depends on SPI_3_NRF_SPIM || SPI_3_NRF_SPIS
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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config SPI_3_NRF_RX_DELAY
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int "SPIM3 MISO sampling delay"
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depends on SPI_3_NRF_SPIM && (SOC_NRF52833 || SOC_NRF52840)
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range 0 7
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default 2
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help
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Number of 64 MHz clock cycles (15.625 ns) delay from the sampling
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edge of SCK (leading or trailing, depending on the CPHA setting used)
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until the input serial data on MISO is actually sampled.
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config SPI_4_NRF_SPIM
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def_bool $(dt_nodelabel_has_compat,spi4,$(DT_COMPAT_NORDIC_NRF_SPIM))
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select NRFX_SPIM4
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help
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Enable nRF SPI Master with EasyDMA on port 4.
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config SPI_4_NRF_ORC
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hex "SPI Port 4 over-read character"
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depends on SPI_4_NRF_SPIM
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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config SPI_4_NRF_RX_DELAY
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int "SPIM4 MISO sampling delay"
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depends on SPI_4_NRF_SPIM && SOC_NRF5340_CPUAPP
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range 0 7
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default 2
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help
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Number of 64 MHz clock cycles (15.625 ns) delay from the sampling
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edge of SCK (leading or trailing, depending on the CPHA setting used)
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until the input serial data on MISO is actually sampled.
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config SPI_NRFX_RAM_BUFFER_SIZE
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int "Size of RAM buffers for SPIM peripherals"
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default 0
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depends on NRFX_SPIM
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help
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SPIM peripherals cannot transmit data directly from flash. Therefore,
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a buffer in RAM needs to be provided for each instance of SPI driver
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using SPIM peripheral, so that the driver can copy there a chunk of
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data from flash and transmit it.
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The size is specified in bytes. A size of 0 means that this feature
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should be disabled, and the application must then take care of not
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supplying buffers located in flash to the driver, otherwise such
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transfers will fail.
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endif # SPI_NRFX
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