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spi: add support for microchip fpga spi controllers

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Add a driver for Microchip FPGA SPI controllers, specifically
supporting the "hard" controllers on PolarFire SoC.

Co-developed-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220607073833.2331539-2-conor.dooley@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Conor Dooley
2022-06-07 08:38:33 +01:00
committed by Mark Brown
parent 6ff40f00e5
commit 9ac8d17694
3 changed files with 642 additions and 0 deletions
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9
drivers/spi/Kconfig
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@@ -575,6 +575,15 @@ config SPI_MESON_SPIFC
This enables master mode support for the SPIFC (SPI flash
controller) available in Amlogic Meson SoCs.
config SPI_MICROCHIP_CORE
tristate "Microchip FPGA SPI controllers"
depends on SPI_MASTER
help
This enables the SPI driver for Microchip FPGA SPI controllers.
Say Y or M here if you want to use the "hard" controllers on
PolarFire SoC.
If built as a module, it will be called spi-microchip-core.
config SPI_MT65XX
tristate "MediaTek SPI controller"
depends on ARCH_MEDIATEK || COMPILE_TEST

1
drivers/spi/Makefile
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@@ -71,6 +71,7 @@ obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o
obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o
obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o
obj-$(CONFIG_SPI_MESON_SPIFC) += spi-meson-spifc.o
obj-$(CONFIG_SPI_MICROCHIP_CORE) += spi-microchip-core.o
obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o
obj-$(CONFIG_SPI_MPC52xx_PSC) += spi-mpc52xx-psc.o
obj-$(CONFIG_SPI_MPC52xx) += spi-mpc52xx.o

632
drivers/spi/spi-microchip-core.c Normal file
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