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Unverified Commit ace55c41 authored by Tomer Maimon's avatar Tomer Maimon Committed by Mark Brown
Browse files

spi: npcm-fiu: add NPCM FIU controller driver 



Add Nuvoton NPCM BMC Flash Interface Unit(FIU) SPI master
controller driver using SPI-MEM interface.

The FIU supports single, dual or quad communication interface.

the FIU controller can operate in following modes:
- User Mode Access(UMA): provides flash access by using an
  indirect address/data mechanism.
- direct rd/wr mode: maps the flash memory into the core
  address space.
- SPI-X mode: used for an expansion bus to an ASIC or CPLD.

Signed-off-by: default avatarTomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20190828142513.228556-3-tmaimon77@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 91d0c59f

drivers/spi/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -433,6 +433,16 @@ config SPI_MT7621 
	help

	  This selects a driver for the MediaTek MT7621 SPI Controller.



config SPI_NPCM_FIU

	tristate "Nuvoton NPCM FLASH Interface Unit"

	depends on ARCH_NPCM || COMPILE_TEST

	depends on OF && HAS_IOMEM

	help

	  This enables support for the Flash Interface Unit SPI controller

	  in master mode.

	  This driver does not support generic SPI. The implementation only

	  supports spi-mem interface.



config SPI_NPCM_PSPI

	tristate "Nuvoton NPCM PSPI Controller"

	depends on ARCH_NPCM || COMPILE_TEST

drivers/spi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -63,6 +63,7 @@ obj-$(CONFIG_SPI_MT65XX) += spi-mt65xx.o 
obj-$(CONFIG_SPI_MT7621)		+= spi-mt7621.o

obj-$(CONFIG_SPI_MXIC)			+= spi-mxic.o

obj-$(CONFIG_SPI_MXS)			+= spi-mxs.o

obj-$(CONFIG_SPI_NPCM_FIU)		+= spi-npcm-fiu.o

obj-$(CONFIG_SPI_NPCM_PSPI)		+= spi-npcm-pspi.o

obj-$(CONFIG_SPI_NUC900)		+= spi-nuc900.o

obj-$(CONFIG_SPI_NXP_FLEXSPI)		+= spi-nxp-fspi.o

drivers/spi/spi-npcm-fiu.c

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