spi: npcm-fiu: add NPCM FIU controller driver (ace55c41) · Commits · 戴 / test

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:

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

Mark Brown <broonie@kernel.org>

drivers/spi/Kconfig

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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

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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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File added.

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