# nobody's needed a slave side API yet. The master-role API is not
# fully appropriate there, so it'd need some thought to do well.
#
-menu "SPI support"
-
-config SPI
+menuconfig SPI
bool "SPI support"
+ depends on HAS_IOMEM
help
The "Serial Peripheral Interface" is a low level synchronous
protocol. Chips that support SPI can have data transfer rates
controller and a chipselect. Most SPI slaves don't support
dynamic device discovery; some are even write-only or read-only.
- SPI is widely used by microcontollers to talk with sensors,
+ SPI is widely used by microcontrollers to talk with sensors,
eeprom and flash memory, codecs and various other controller
chips, analog to digital (and d-to-a) converters, and more.
MMC and SD cards can be accessed using SPI protocol; and for
(half duplex), SSP, SSI, and PSP. This driver framework should
work with most such devices and controllers.
+if SPI
+
config SPI_DEBUG
boolean "Debug support for SPI drivers"
- depends on SPI && DEBUG_KERNEL
+ depends on DEBUG_KERNEL
help
Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
sysfs, and debugfs support in SPI controller and protocol drivers.
controller and the protocol drivers for the SPI slave chips
that are connected.
+if SPI_MASTER
+
comment "SPI Master Controller Drivers"
- depends on SPI_MASTER
+
+config SPI_ATMEL
+ tristate "Atmel SPI Controller"
+ depends on (ARCH_AT91 || AVR32)
+ help
+ This selects a driver for the Atmel SPI Controller, present on
+ many AT32 (AVR32) and AT91 (ARM) chips.
+
+config SPI_BFIN
+ tristate "SPI controller driver for ADI Blackfin5xx"
+ depends on BLACKFIN
+ help
+ This is the SPI controller master driver for Blackfin 5xx processor.
+
+config SPI_AU1550
+ tristate "Au1550/Au12x0 SPI Controller"
+ depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
+ select SPI_BITBANG
+ help
+ If you say yes to this option, support will be included for the
+ Au1550 SPI controller (may also work with Au1200,Au1210,Au1250).
+
+ This driver can also be built as a module. If so, the module
+ will be called au1550_spi.
config SPI_BITBANG
- tristate "Bitbanging SPI master"
- depends on SPI_MASTER && EXPERIMENTAL
+ tristate "Utilities for Bitbanging SPI masters"
help
With a few GPIO pins, your system can bitbang the SPI protocol.
Select this to get SPI support through I/O pins (GPIO, parallel
config SPI_BUTTERFLY
tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
- depends on SPI_MASTER && PARPORT && EXPERIMENTAL
+ depends on PARPORT
select SPI_BITBANG
help
This uses a custom parallel port cable to connect to an AVR
inexpensive battery powered microcontroller evaluation board.
This same cable can be used to flash new firmware.
-config SPI_MPC83xx
- tristate "Freescale MPC83xx SPI controller"
- depends on SPI_MASTER && PPC_83xx && EXPERIMENTAL
+config SPI_GPIO
+ tristate "GPIO-based bitbanging SPI Master"
+ depends on GENERIC_GPIO
select SPI_BITBANG
help
- This enables using the Freescale MPC83xx SPI controller in master
+ This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
+ interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
+ slaves connected to a bus using this driver are configured as usual,
+ except that the spi_board_info.controller_data holds the GPIO number
+ for the chipselect used by this controller driver.
+
+ Note that this driver often won't achieve even 1 Mbit/sec speeds,
+ making it unusually slow for SPI. If your platform can inline
+ GPIO operations, you should be able to leverage that for better
+ speed with a custom version of this driver; see the source code.
+
+config SPI_IMX
+ tristate "Freescale i.MX SPI controllers"
+ depends on ARCH_MXC
+ select SPI_BITBANG
+ help
+ This enables using the Freescale i.MX SPI controllers in master
mode.
- Note, this driver uniquely supports the SPI controller on the MPC83xx
- family of PowerPC processors. The MPC83xx uses a simple set of shift
- registers for data (opposed to the CPM based descriptor model).
+config SPI_LM70_LLP
+ tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
+ depends on PARPORT && EXPERIMENTAL
+ select SPI_BITBANG
+ help
+ This driver supports the NS LM70 LLP Evaluation Board,
+ which interfaces to an LM70 temperature sensor using
+ a parallel port.
+
+config SPI_MPC52xx
+ tristate "Freescale MPC52xx SPI (non-PSC) controller support"
+ depends on PPC_MPC52xx && SPI
+ select SPI_MASTER_OF
+ help
+ This drivers supports the MPC52xx SPI controller in master SPI
+ mode.
+
+config SPI_MPC52xx_PSC
+ tristate "Freescale MPC52xx PSC SPI controller"
+ depends on PPC_MPC52xx && EXPERIMENTAL
+ help
+ This enables using the Freescale MPC52xx Programmable Serial
+ Controller in master SPI mode.
+
+config SPI_MPC8xxx
+ tristate "Freescale MPC8xxx SPI controller"
+ depends on FSL_SOC
+ help
+ This enables using the Freescale MPC8xxx SPI controllers in master
+ mode.
+
+ This driver uses a simple set of shift registers for data (opposed
+ to the CPM based descriptor model).
+
+config SPI_OMAP_UWIRE
+ tristate "OMAP1 MicroWire"
+ depends on ARCH_OMAP1
+ select SPI_BITBANG
+ help
+ This hooks up to the MicroWire controller on OMAP1 chips.
+
+config SPI_OMAP24XX
+ tristate "McSPI driver for OMAP24xx/OMAP34xx"
+ depends on ARCH_OMAP24XX || ARCH_OMAP34XX
+ help
+ SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
+ (McSPI) modules.
+
+config SPI_ORION
+ tristate "Orion SPI master (EXPERIMENTAL)"
+ depends on PLAT_ORION && EXPERIMENTAL
+ help
+ This enables using the SPI master controller on the Orion chips.
+
+config SPI_PL022
+ tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
+ depends on ARM_AMBA && EXPERIMENTAL
+ default y if MACH_U300
+ default y if ARCH_REALVIEW
+ default y if INTEGRATOR_IMPD1
+ default y if ARCH_VERSATILE
+ help
+ This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
+ controller. If you have an embedded system with an AMBA(R)
+ bus and a PL022 controller, say Y or M here.
+
+config SPI_PPC4xx
+ tristate "PPC4xx SPI Controller"
+ depends on PPC32 && 4xx && SPI_MASTER
+ select SPI_BITBANG
+ help
+ This selects a driver for the PPC4xx SPI Controller.
config SPI_PXA2XX
tristate "PXA2xx SSP SPI master"
- depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL
+ depends on ARCH_PXA && EXPERIMENTAL
+ select PXA_SSP
help
This enables using a PXA2xx SSP port as a SPI master controller.
The driver can be configured to use any SSP port and additional
documentation can be found a Documentation/spi/pxa2xx.
+config SPI_S3C24XX
+ tristate "Samsung S3C24XX series SPI"
+ depends on ARCH_S3C2410 && EXPERIMENTAL
+ select SPI_BITBANG
+ help
+ SPI driver for Samsung S3C24XX series ARM SoCs
+
config SPI_S3C24XX_GPIO
tristate "Samsung S3C24XX series SPI by GPIO"
- depends on SPI_MASTER && ARCH_S3C2410 && SPI_BITBANG && EXPERIMENTAL
+ depends on ARCH_S3C2410 && EXPERIMENTAL
+ select SPI_BITBANG
help
SPI driver for Samsung S3C24XX series ARM SoCs using
GPIO lines to provide the SPI bus. This can be used where
the inbuilt hardware cannot provide the transfer mode, or
where the board is using non hardware connected pins.
-#
-# Add new SPI master controllers in alphabetical order above this line
-#
+config SPI_SH_SCI
+ tristate "SuperH SCI SPI controller"
+ depends on SUPERH
+ select SPI_BITBANG
+ help
+ SPI driver for SuperH SCI blocks.
-config SPI_S3C24XX
- tristate "Samsung S3C24XX series SPI"
- depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL
+config SPI_STMP3XXX
+ tristate "Freescale STMP37xx/378x SPI/SSP controller"
+ depends on ARCH_STMP3XXX && SPI_MASTER
help
- SPI driver for Samsung S3C24XX series ARM SoCs
+ SPI driver for Freescale STMP37xx/378x SoC SSP interface
+
+config SPI_TXX9
+ tristate "Toshiba TXx9 SPI controller"
+ depends on GENERIC_GPIO && CPU_TX49XX
+ help
+ SPI driver for Toshiba TXx9 MIPS SoCs
+
+config SPI_XILINX
+ tristate "Xilinx SPI controller"
+ depends on EXPERIMENTAL
+ select SPI_BITBANG
+ select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
+ help
+ This exposes the SPI controller IP from the Xilinx EDK.
+
+ See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
+ Product Specification document (DS464) for hardware details.
+
+config SPI_XILINX_OF
+ tristate "Xilinx SPI controller OF device"
+ depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
+ help
+ This is the OF driver for the SPI controller IP from the Xilinx EDK.
+
+#
+# Add new SPI master controllers in alphabetical order above this line
+#
#
# There are lots of SPI device types, with sensors and memory
# being probably the most widely used ones.
#
comment "SPI Protocol Masters"
- depends on SPI_MASTER
+config SPI_SPIDEV
+ tristate "User mode SPI device driver support"
+ depends on EXPERIMENTAL
+ help
+ This supports user mode SPI protocol drivers.
+
+ Note that this application programming interface is EXPERIMENTAL
+ and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
+
+config SPI_TLE62X0
+ tristate "Infineon TLE62X0 (for power switching)"
+ depends on SYSFS
+ help
+ SPI driver for Infineon TLE62X0 series line driver chips,
+ such as the TLE6220, TLE6230 and TLE6240. This provides a
+ sysfs interface, with each line presented as a kind of GPIO
+ exposing both switch control and diagnostic feedback.
#
# Add new SPI protocol masters in alphabetical order above this line
#
+endif # SPI_MASTER
# (slave support would go here)
-endmenu # "SPI support"
-
+endif # SPI
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