Unverified Commit cef9991e authored by Sunny Luo's avatar Sunny Luo Committed by Mark Brown
Browse files

spi: Add Amlogic SPISG driver 



Introduced support for the new SPI IP (SPISG) driver. The SPISG is
a communication-oriented SPI controller from Amlogic,supporting
three operation modes: PIO, block DMA, and scatter-gather DMA.

Due to there is no FIFO, PIO mode can only transfer one word at
a time, which is extremely slow. Therefore, this mode was not
implemented.

Signed-off-by: default avatarSunny Luo <sunny.luo@amlogic.com>
Signed-off-by: default avatarXianwei Zhao <xianwei.zhao@amlogic.com>
Link: https://patch.msgid.link/20250718-spisg-v5-2-b8f0f1eb93a2@amlogic.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 78d35a20

drivers/spi/Kconfig

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Original line number Diff line number Diff line
@@ -99,6 +99,15 @@ config SPI_AMLOGIC_SPIFC_A1 
	  This enables master mode support for the SPIFC (SPI flash

	  controller) available in Amlogic A1 (A113L SoC).



config SPI_AMLOGIC_SPISG

	tristate "Amlogic SPISG controller"

	depends on COMMON_CLK

	depends on ARCH_MESON || COMPILE_TEST

	help

	  This enables master mode support for the SPISG (SPI scatter-gather

	  communication controller), which is available on platforms such as

	  Amlogic A4 SoCs.



config SPI_APPLE

	tristate "Apple SoC SPI Controller platform driver"

	depends on ARCH_APPLE || COMPILE_TEST

drivers/spi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ obj-$(CONFIG_SPI_ALTERA) += spi-altera-platform.o 
obj-$(CONFIG_SPI_ALTERA_CORE)		+= spi-altera-core.o

obj-$(CONFIG_SPI_ALTERA_DFL)		+= spi-altera-dfl.o

obj-$(CONFIG_SPI_AMLOGIC_SPIFC_A1)	+= spi-amlogic-spifc-a1.o

obj-$(CONFIG_SPI_AMLOGIC_SPISG)		+= spi-amlogic-spisg.o

obj-$(CONFIG_SPI_APPLE)			+= spi-apple.o

obj-$(CONFIG_SPI_AR934X)		+= spi-ar934x.o

obj-$(CONFIG_SPI_ARMADA_3700)		+= spi-armada-3700.o

drivers/spi/spi-amlogic-spisg.c

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