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spi: add driver for STM32 SPI controller

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The STM32 Serial Peripheral Interface (SPI) can be used to communicate
with external devices while using the specific synchronous protocol. It
supports a half-duplex, full-duplex and simplex synchronous, serial
communication with external devices with 4-bit to 16/32-bit per word. It
has two 8x/16x 8-bit embedded Rx and TxFIFOs with DMA capability. It can
operate in master or slave mode.

Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Amelie Delaunay 2017-06-21 16:32:06 +02:00 committed by Mark Brown
parent 82a29bf995
commit dcbe0d84df
3 changed files with 1277 additions and 0 deletions
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10
drivers/spi/Kconfig
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@ -619,6 +619,16 @@ config SPI_SIRF
help
SPI driver for CSR SiRFprimaII SoCs
config SPI_STM32
tristate "STMicroelectronics STM32 SPI controller"
depends on ARCH_STM32 || COMPILE_TEST
help
SPI driver for STMicroelectonics STM32 SoCs.
STM32 SPI controller supports DMA and PIO modes. When DMA
is not available, the driver automatically falls back to
PIO mode.
config SPI_ST_SSC4
tristate "STMicroelectronics SPI SSC-based driver"
depends on ARCH_STI || COMPILE_TEST

1
drivers/spi/Makefile
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@ -89,6 +89,7 @@ obj-$(CONFIG_SPI_SH_HSPI) += spi-sh-hspi.o
obj-$(CONFIG_SPI_SH_MSIOF) += spi-sh-msiof.o
obj-$(CONFIG_SPI_SH_SCI) += spi-sh-sci.o
obj-$(CONFIG_SPI_SIRF) += spi-sirf.o
obj-$(CONFIG_SPI_STM32) += spi-stm32.o
obj-$(CONFIG_SPI_ST_SSC4) += spi-st-ssc4.o
obj-$(CONFIG_SPI_SUN4I) += spi-sun4i.o
obj-$(CONFIG_SPI_SUN6I) += spi-sun6i.o

1266
drivers/spi/spi-stm32.c Normal file
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