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Commit dcbe0d84 authored Jun 21, 2017 by Amelie Delaunay Committed by Mark Brown Jun 21, 2017

spi: add driver for STM32 SPI controller



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>

parent 82a29bf9

drivers/spi/Kconfig

+10 −0

Original line number	Original line	Diff line number	Diff line
	@@ -619,6 +619,16 @@ config SPI_SIRF
	help		help
	SPI driver for CSR SiRFprimaII SoCs		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		config SPI_ST_SSC4
	tristate "STMicroelectronics SPI SSC-based driver"		tristate "STMicroelectronics SPI SSC-based driver"
	depends on ARCH_STI \|\| COMPILE_TEST		depends on ARCH_STI \|\| COMPILE_TEST

drivers/spi/Makefile

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -89,6 +89,7 @@ obj-$(CONFIG_SPI_SH_HSPI) += spi-sh-hspi.o
	obj-$(CONFIG_SPI_SH_MSIOF) += spi-sh-msiof.o		obj-$(CONFIG_SPI_SH_MSIOF) += spi-sh-msiof.o
	obj-$(CONFIG_SPI_SH_SCI) += spi-sh-sci.o		obj-$(CONFIG_SPI_SH_SCI) += spi-sh-sci.o
	obj-$(CONFIG_SPI_SIRF) += spi-sirf.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_ST_SSC4) += spi-st-ssc4.o
	obj-$(CONFIG_SPI_SUN4I) += spi-sun4i.o		obj-$(CONFIG_SPI_SUN4I) += spi-sun4i.o
	obj-$(CONFIG_SPI_SUN6I) += spi-sun6i.o		obj-$(CONFIG_SPI_SUN6I) += spi-sun6i.o

drivers/spi/spi-stm32.c

0 → 100644

+1266 −0

File added.

Preview size limit exceeded, changes collapsed.