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Commit 6a4ec4cd authored by Boris Brezillon's avatar Boris Brezillon Committed by Alexandre Belloni
Browse files

memory: add Atmel EBI (External Bus Interface) driver 



The EBI (External Bus Interface) is used to access external peripherals
(NOR, SRAM, NAND, and other specific devices like ethernet controllers).
Each device is assigned a CS line and an address range and can have its
own configuration (timings, access mode, bus width, ...).
This driver provides a generic DT binding to configure a device according
to its requirements.
For specific device controllers (like the NAND one) the SMC timings
should be configured by the controller driver through the matrix and
smc syscon regmaps.

Signed-off-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent 1a695a90

drivers/memory/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -25,6 +25,17 @@ config ATMEL_SDRAMC 
	  Starting with the at91sam9g45, this controller supports SDR, DDR and

	  LP-DDR memories.



config ATMEL_EBI

	bool "Atmel EBI driver"

	default y

	depends on ARCH_AT91 && OF

	select MFD_SYSCON

	help

	  Driver for Atmel EBI controller.

	  Used to configure the EBI (external bus interface) when the device-

	  tree is used. This bus supports NANDs, external ethernet controller,

	  SRAMs, ATA devices, etc.



config TI_AEMIF

	tristate "Texas Instruments AEMIF driver"

	depends on (ARCH_DAVINCI || ARCH_KEYSTONE) && OF

drivers/memory/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ obj-$(CONFIG_OF) += of_memory.o 
endif

obj-$(CONFIG_ARM_PL172_MPMC)	+= pl172.o

obj-$(CONFIG_ATMEL_SDRAMC)	+= atmel-sdramc.o

obj-$(CONFIG_ATMEL_EBI)		+= atmel-ebi.o

obj-$(CONFIG_TI_AEMIF)		+= ti-aemif.o

obj-$(CONFIG_TI_EMIF)		+= emif.o

obj-$(CONFIG_OMAP_GPMC)		+= omap-gpmc.o

drivers/memory/atmel-ebi.c

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File added.

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