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257c28a200
In Nordic SoCs, SPI and TWI peripherals with the same instance number share certain resources and therefore cannot be used at the same time (in nRF91 Series this limitation concerns UART peripherals as well). This patch adds Kconfig checks ensuring that only one of such mutually exclusive peripherals can be enabled. Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
122 lines
3.5 KiB
Plaintext
122 lines
3.5 KiB
Plaintext
# Kconfig - nrfx I2C support
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#
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# Copyright (c) 2018, Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig I2C_NRFX
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bool "nRF TWI nrfx drivers"
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default y
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depends on SOC_FAMILY_NRF
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select HAS_DTS_I2C
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help
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Enable support for nrfx TWI drivers for nRF MCU series.
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Peripherals with the same instance ID cannot be used together,
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e.g. I2C_0 and SPI_0. You may need to disable SPI_0 or SPI_1.
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if I2C_NRFX
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# In most Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series this limitation concerns UART peripherals as well).
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# In nRF52810 though, there are only single instances of these peripherals
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# and they are arranged in a different way, so this limitation does not apply.
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if I2C_0 && (SOC_NRF52810 || \
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(!SPI_0 && !(SOC_SERIES_NRF91X && UART_0_NRF_UARTE)))
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choice I2C_0_NRF_TYPE
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prompt "I2C Port 0 Driver type"
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config I2C_0_NRF_TWI
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bool "nRF TWI 0"
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depends on HAS_HW_NRF_TWI0
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select NRFX_TWI
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help
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Enable nRF TWI Master without EasyDMA on port 0.
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config I2C_0_NRF_TWIM
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bool "nRF TWIM 0"
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depends on HAS_HW_NRF_TWIM0
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 0.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_0 && (SOC_NRF52810 || ...
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# In Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series this limitation concerns UART peripherals as well).
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if I2C_1 && !SPI_1 && !(SOC_SERIES_NRF91X && UART_1_NRF_UARTE)
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choice I2C_1_NRF_TYPE
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prompt "I2C Port 1 Driver type"
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config I2C_1_NRF_TWI
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bool "nRF TWI 1"
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depends on HAS_HW_NRF_TWI1
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select NRFX_TWI
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help
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Enable nRF TWI Master without EasyDMA on port 1.
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config I2C_1_NRF_TWIM
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bool "nRF TWIM 1"
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depends on HAS_HW_NRF_TWIM1
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 1.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_1 && !SPI_1 && !(SOC_SERIES_NRF91X && UART_1_NRF_UARTE)
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# In Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series this limitation concerns UART peripherals as well).
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if I2C_2 && !SPI_2 && !(SOC_SERIES_NRF91X && UART_2_NRF_UARTE)
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choice I2C_2_NRF_TYPE
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prompt "I2C Port 2 Driver type"
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config I2C_2_NRF_TWIM
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bool "nRF TWIM 2"
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depends on HAS_HW_NRF_TWIM2
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 2.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_2 && !SPI_2 && !(SOC_SERIES_NRF91X && UART_2_NRF_UARTE)
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# In Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series SoCs this limitation concerns UART peripherals as well).
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if I2C_3 && !SPI_3 && !(SOC_SERIES_NRF91X && UART_3_NRF_UARTE)
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choice I2C_3_NRF_TYPE
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prompt "I2C Port 3 Driver type"
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config I2C_3_NRF_TWIM
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bool "nRF TWIM 3"
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depends on HAS_HW_NRF_TWIM3
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 3.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_3 && !SPI_3 && !(SOC_SERIES_NRF91X && UART_3_NRF_UARTE)
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endif #I2C_NRFX
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