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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/spi/Kconfig
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/spi/Kconfig')
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1 files changed, 672 insertions, 0 deletions
diff --git a/kernel/drivers/spi/Kconfig b/kernel/drivers/spi/Kconfig
new file mode 100644
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--- /dev/null
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@@ -0,0 +1,672 @@
+#
+# SPI driver configuration
+#
+# NOTE: the reason this doesn't show SPI slave support is mostly that
+# 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.
+#
+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
+ up to several tens of Mbit/sec. Chips are addressed with a
+ 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 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
+ DataFlash cards used in MMC sockets, SPI must always be used.
+
+ SPI is one of a family of similar protocols using a four wire
+ interface (select, clock, data in, data out) including Microwire
+ (half duplex), SSP, SSI, and PSP. This driver framework should
+ work with most such devices and controllers.
+
+if SPI
+
+config SPI_DEBUG
+ bool "Debug support for SPI drivers"
+ 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.
+
+#
+# MASTER side ... talking to discrete SPI slave chips including microcontrollers
+#
+
+config SPI_MASTER
+# bool "SPI Master Support"
+ bool
+ default SPI
+ help
+ If your system has an master-capable SPI controller (which
+ provides the clock and chipselect), you can enable that
+ controller and the protocol drivers for the SPI slave chips
+ that are connected.
+
+if SPI_MASTER
+
+comment "SPI Master Controller Drivers"
+
+config SPI_ALTERA
+ tristate "Altera SPI Controller"
+ select SPI_BITBANG
+ help
+ This is the driver for the Altera SPI Controller.
+
+config SPI_ATH79
+ tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
+ depends on ATH79 && GPIOLIB
+ select SPI_BITBANG
+ help
+ This enables support for the SPI controller present on the
+ Atheros AR71XX/AR724X/AR913X SoCs.
+
+config SPI_ATMEL
+ tristate "Atmel SPI Controller"
+ depends on HAS_DMA
+ depends on (ARCH_AT91 || AVR32 || COMPILE_TEST)
+ help
+ This selects a driver for the Atmel SPI Controller, present on
+ many AT32 (AVR32) and AT91 (ARM) chips.
+
+config SPI_BCM2835
+ tristate "BCM2835 SPI controller"
+ depends on ARCH_BCM2835 || COMPILE_TEST
+ depends on GPIOLIB
+ help
+ This selects a driver for the Broadcom BCM2835 SPI master.
+
+ The BCM2835 contains two types of SPI master controller; the
+ "universal SPI master", and the regular SPI controller. This driver
+ is for the regular SPI controller. Slave mode operation is not also
+ not supported.
+
+config SPI_BFIN5XX
+ tristate "SPI controller driver for ADI Blackfin5xx"
+ depends on BLACKFIN && !BF60x
+ help
+ This is the SPI controller master driver for Blackfin 5xx processor.
+
+config SPI_ADI_V3
+ tristate "SPI controller v3 for ADI"
+ depends on BF60x
+ help
+ This is the SPI controller v3 master driver
+ found on Blackfin 60x processor.
+
+config SPI_BFIN_SPORT
+ tristate "SPI bus via Blackfin SPORT"
+ depends on BLACKFIN
+ help
+ Enable support for a SPI bus via the Blackfin SPORT peripheral.
+
+config SPI_AU1550
+ tristate "Au1550/Au1200/Au1300 SPI Controller"
+ depends on MIPS_ALCHEMY
+ select SPI_BITBANG
+ help
+ If you say yes to this option, support will be included for the
+ PSC SPI controller found on Au1550, Au1200 and Au1300 series.
+
+config SPI_BCM53XX
+ tristate "Broadcom BCM53xx SPI controller"
+ depends on ARCH_BCM_5301X
+ depends on BCMA_POSSIBLE
+ select BCMA
+ help
+ Enable support for the SPI controller on Broadcom BCM53xx ARM SoCs.
+
+config SPI_BCM63XX
+ tristate "Broadcom BCM63xx SPI controller"
+ depends on BCM63XX
+ help
+ Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
+
+config SPI_BCM63XX_HSSPI
+ tristate "Broadcom BCM63XX HS SPI controller driver"
+ depends on BCM63XX || COMPILE_TEST
+ help
+ This enables support for the High Speed SPI controller present on
+ newer Broadcom BCM63XX SoCs.
+
+config SPI_BITBANG
+ 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
+ port, etc). Or, some systems' SPI master controller drivers use
+ this code to manage the per-word or per-transfer accesses to the
+ hardware shift registers.
+
+ This is library code, and is automatically selected by drivers that
+ need it. You only need to select this explicitly to support driver
+ modules that aren't part of this kernel tree.
+
+config SPI_BUTTERFLY
+ tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
+ depends on PARPORT
+ select SPI_BITBANG
+ help
+ This uses a custom parallel port cable to connect to an AVR
+ Butterfly <http://www.atmel.com/products/avr/butterfly>, an
+ inexpensive battery powered microcontroller evaluation board.
+ This same cable can be used to flash new firmware.
+
+config SPI_CADENCE
+ tristate "Cadence SPI controller"
+ help
+ This selects the Cadence SPI controller master driver
+ used by Xilinx Zynq and ZynqMP.
+
+config SPI_CLPS711X
+ tristate "CLPS711X host SPI controller"
+ depends on ARCH_CLPS711X || COMPILE_TEST
+ help
+ This enables dedicated general purpose SPI/Microwire1-compatible
+ master mode interface (SSI1) for CLPS711X-based CPUs.
+
+config SPI_COLDFIRE_QSPI
+ tristate "Freescale Coldfire QSPI controller"
+ depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
+ help
+ This enables support for the Coldfire QSPI controller in master
+ mode.
+
+config SPI_DAVINCI
+ tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
+ depends on ARCH_DAVINCI || ARCH_KEYSTONE
+ select SPI_BITBANG
+ help
+ SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
+
+config SPI_DLN2
+ tristate "Diolan DLN-2 USB SPI adapter"
+ depends on MFD_DLN2
+ help
+ If you say yes to this option, support will be included for Diolan
+ DLN2, a USB to SPI interface.
+
+ This driver can also be built as a module. If so, the module
+ will be called spi-dln2.
+
+config SPI_EFM32
+ tristate "EFM32 SPI controller"
+ depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
+ select SPI_BITBANG
+ help
+ Driver for the spi controller found on Energy Micro's EFM32 SoCs.
+
+config SPI_EP93XX
+ tristate "Cirrus Logic EP93xx SPI controller"
+ depends on HAS_DMA
+ depends on ARCH_EP93XX || COMPILE_TEST
+ help
+ This enables using the Cirrus EP93xx SPI controller in master
+ mode.
+
+config SPI_FALCON
+ tristate "Falcon SPI controller support"
+ depends on SOC_FALCON
+ help
+ The external bus unit (EBU) found on the FALC-ON SoC has SPI
+ emulation that is designed for serial flash access. This driver
+ has only been tested with m25p80 type chips. The hardware has no
+ support for other types of SPI peripherals.
+
+config SPI_GPIO
+ tristate "GPIO-based bitbanging SPI Master"
+ depends on GPIOLIB
+ select SPI_BITBANG
+ help
+ 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_IMG_SPFI
+ tristate "IMG SPFI controller"
+ depends on MIPS || COMPILE_TEST
+ help
+ This enables support for the SPFI master controller found on
+ IMG SoCs.
+
+config SPI_IMX
+ tristate "Freescale i.MX SPI controllers"
+ depends on ARCH_MXC || COMPILE_TEST
+ select SPI_BITBANG
+ help
+ This enables using the Freescale i.MX SPI controllers in master
+ mode.
+
+config SPI_LM70_LLP
+ tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
+ depends on PARPORT
+ 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
+ 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
+ help
+ This enables using the Freescale MPC52xx Programmable Serial
+ Controller in master SPI mode.
+
+config SPI_MPC512x_PSC
+ tristate "Freescale MPC512x PSC SPI controller"
+ depends on PPC_MPC512x
+ help
+ This enables using the Freescale MPC5121 Programmable Serial
+ Controller in SPI master mode.
+
+config SPI_FSL_LIB
+ tristate
+ depends on OF
+
+config SPI_FSL_CPM
+ tristate
+ depends on FSL_SOC
+
+config SPI_FSL_SPI
+ tristate "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller"
+ depends on OF
+ select SPI_FSL_LIB
+ select SPI_FSL_CPM if FSL_SOC
+ help
+ This enables using the Freescale SPI controllers in master mode.
+ MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
+ MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
+ This also enables using the Aeroflex Gaisler GRLIB SPI controller in
+ master mode.
+
+config SPI_FSL_DSPI
+ tristate "Freescale DSPI controller"
+ select REGMAP_MMIO
+ depends on SOC_VF610 || SOC_LS1021A || COMPILE_TEST
+ help
+ This enables support for the Freescale DSPI controller in master
+ mode. VF610 platform uses the controller.
+
+config SPI_FSL_ESPI
+ tristate "Freescale eSPI controller"
+ depends on FSL_SOC
+ select SPI_FSL_LIB
+ help
+ This enables using the Freescale eSPI controllers in master mode.
+ From MPC8536, 85xx platform uses the controller, and all P10xx,
+ P20xx, P30xx,P40xx, P50xx uses this controller.
+
+config SPI_MESON_SPIFC
+ tristate "Amlogic Meson SPIFC controller"
+ depends on ARCH_MESON || COMPILE_TEST
+ select REGMAP_MMIO
+ help
+ This enables master mode support for the SPIFC (SPI flash
+ controller) available in Amlogic Meson SoCs.
+
+config SPI_OC_TINY
+ tristate "OpenCores tiny SPI"
+ depends on GPIOLIB
+ select SPI_BITBANG
+ help
+ This is the driver for OpenCores tiny SPI master controller.
+
+config SPI_OCTEON
+ tristate "Cavium OCTEON SPI controller"
+ depends on CAVIUM_OCTEON_SOC
+ help
+ SPI host driver for the hardware found on some Cavium OCTEON
+ SOCs.
+
+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 OMAP"
+ depends on HAS_DMA
+ depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH
+ depends on ARCH_OMAP2PLUS || COMPILE_TEST
+ help
+ SPI master controller for OMAP24XX and later Multichannel SPI
+ (McSPI) modules.
+
+config SPI_TI_QSPI
+ tristate "DRA7xxx QSPI controller support"
+ depends on ARCH_OMAP2PLUS || COMPILE_TEST
+ help
+ QSPI master controller for DRA7xxx used for flash devices.
+ This device supports single, dual and quad read support, while
+ it only supports single write mode.
+
+config SPI_OMAP_100K
+ tristate "OMAP SPI 100K"
+ depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST
+ help
+ OMAP SPI 100K master controller for omap7xx boards.
+
+config SPI_ORION
+ tristate "Orion SPI master"
+ depends on PLAT_ORION || COMPILE_TEST
+ help
+ This enables using the SPI master controller on the Orion chips.
+
+config SPI_PL022
+ tristate "ARM AMBA PL022 SSP controller"
+ depends on ARM_AMBA
+ 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
+ select SPI_BITBANG
+ help
+ This selects a driver for the PPC4xx SPI Controller.
+
+config SPI_PXA2XX_PXADMA
+ bool "PXA2xx SSP legacy PXA DMA API support"
+ depends on SPI_PXA2XX && ARCH_PXA
+ help
+ Enable PXA private legacy DMA API support. Note that this is
+ deprecated in favor of generic DMA engine API.
+
+config SPI_PXA2XX_DMA
+ def_bool y
+ depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA
+
+config SPI_PXA2XX
+ tristate "PXA2xx SSP SPI master"
+ depends on (ARCH_PXA || PCI || ACPI)
+ select PXA_SSP if ARCH_PXA
+ help
+ This enables using a PXA2xx or Sodaville 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_PXA2XX_PCI
+ def_tristate SPI_PXA2XX && PCI && COMMON_CLK
+
+config SPI_ROCKCHIP
+ tristate "Rockchip SPI controller driver"
+ depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH
+ help
+ This selects a driver for Rockchip SPI controller.
+
+ If you say yes to this option, support will be included for
+ RK3066, RK3188 and RK3288 families of SPI controller.
+ Rockchip SPI controller support DMA transport and PIO mode.
+ The main usecase of this controller is to use spi flash as boot
+ device.
+
+config SPI_RSPI
+ tristate "Renesas RSPI/QSPI controller"
+ depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST
+ help
+ SPI driver for Renesas RSPI and QSPI blocks.
+
+config SPI_QUP
+ tristate "Qualcomm SPI controller with QUP interface"
+ depends on ARCH_QCOM || (ARM && COMPILE_TEST)
+ help
+ Qualcomm Universal Peripheral (QUP) core is an AHB slave that
+ provides a common data path (an output FIFO and an input FIFO)
+ for serial peripheral interface (SPI) mini-core. SPI in master
+ mode supports up to 50MHz, up to four chip selects, programmable
+ data path from 4 bits to 32 bits and numerous protocol variants.
+
+ This driver can also be built as a module. If so, the module
+ will be called spi_qup.
+
+config SPI_S3C24XX
+ tristate "Samsung S3C24XX series SPI"
+ depends on ARCH_S3C24XX
+ select SPI_BITBANG
+ help
+ SPI driver for Samsung S3C24XX series ARM SoCs
+
+config SPI_S3C24XX_FIQ
+ bool "S3C24XX driver with FIQ pseudo-DMA"
+ depends on SPI_S3C24XX
+ select FIQ
+ help
+ Enable FIQ support for the S3C24XX SPI driver to provide pseudo
+ DMA by using the fast-interrupt request framework, This allows
+ the driver to get DMA-like performance when there are either
+ no free DMA channels, or when doing transfers that required both
+ TX and RX data paths.
+
+config SPI_S3C64XX
+ tristate "Samsung S3C64XX series type SPI"
+ depends on (PLAT_SAMSUNG || ARCH_EXYNOS)
+ help
+ SPI driver for Samsung S3C64XX and newer SoCs.
+
+config SPI_SC18IS602
+ tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
+ depends on I2C
+ help
+ SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
+
+config SPI_SH_MSIOF
+ tristate "SuperH MSIOF SPI controller"
+ depends on HAVE_CLK && HAS_DMA
+ depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST
+ help
+ SPI driver for SuperH and SH Mobile MSIOF blocks.
+
+config SPI_SH
+ tristate "SuperH SPI controller"
+ depends on SUPERH || COMPILE_TEST
+ help
+ SPI driver for SuperH SPI blocks.
+
+config SPI_SH_SCI
+ tristate "SuperH SCI SPI controller"
+ depends on SUPERH
+ select SPI_BITBANG
+ help
+ SPI driver for SuperH SCI blocks.
+
+config SPI_SH_HSPI
+ tristate "SuperH HSPI controller"
+ depends on ARCH_SHMOBILE || COMPILE_TEST
+ help
+ SPI driver for SuperH HSPI blocks.
+
+config SPI_SIRF
+ tristate "CSR SiRFprimaII SPI controller"
+ depends on SIRF_DMA
+ select SPI_BITBANG
+ help
+ SPI driver for CSR SiRFprimaII SoCs
+
+config SPI_ST_SSC4
+ tristate "STMicroelectronics SPI SSC-based driver"
+ depends on ARCH_STI
+ help
+ STMicroelectronics SoCs support for SPI. If you say yes to
+ this option, support will be included for the SSC driven SPI.
+
+config SPI_SUN4I
+ tristate "Allwinner A10 SoCs SPI controller"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ help
+ SPI driver for Allwinner sun4i, sun5i and sun7i SoCs
+
+config SPI_SUN6I
+ tristate "Allwinner A31 SPI controller"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ depends on RESET_CONTROLLER
+ help
+ This enables using the SPI controller on the Allwinner A31 SoCs.
+
+config SPI_MXS
+ tristate "Freescale MXS SPI controller"
+ depends on ARCH_MXS
+ select STMP_DEVICE
+ help
+ SPI driver for Freescale MXS devices.
+
+config SPI_TEGRA114
+ tristate "NVIDIA Tegra114 SPI Controller"
+ depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
+ depends on RESET_CONTROLLER && HAS_DMA
+ help
+ SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller
+ is different than the older SoCs SPI controller and also register interface
+ get changed with this controller.
+
+config SPI_TEGRA20_SFLASH
+ tristate "Nvidia Tegra20 Serial flash Controller"
+ depends on ARCH_TEGRA || COMPILE_TEST
+ depends on RESET_CONTROLLER
+ help
+ SPI driver for Nvidia Tegra20 Serial flash Controller interface.
+ The main usecase of this controller is to use spi flash as boot
+ device.
+
+config SPI_TEGRA20_SLINK
+ tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
+ depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
+ depends on RESET_CONTROLLER && HAS_DMA
+ help
+ SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
+
+config SPI_TOPCLIFF_PCH
+ tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
+ depends on PCI && (X86_32 || COMPILE_TEST)
+ help
+ SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
+ used in some x86 embedded processors.
+
+ This driver also supports the ML7213/ML7223/ML7831, a companion chip
+ for the Atom E6xx series and compatible with the Intel EG20T PCH.
+
+config SPI_TXX9
+ tristate "Toshiba TXx9 SPI controller"
+ depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST)
+ help
+ SPI driver for Toshiba TXx9 MIPS SoCs
+
+config SPI_XCOMM
+ tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
+ depends on I2C
+ help
+ Support for the SPI-I2C bridge found on the Analog Devices
+ AD-FMCOMMS1-EBZ board.
+
+config SPI_XILINX
+ tristate "Xilinx SPI controller common module"
+ depends on HAS_IOMEM
+ select SPI_BITBANG
+ 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.
+
+ Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
+
+config SPI_XTENSA_XTFPGA
+ tristate "Xtensa SPI controller for xtfpga"
+ depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST
+ select SPI_BITBANG
+ help
+ SPI driver for xtfpga SPI master controller.
+
+ This simple SPI master controller is built into xtfpga bitstreams
+ and is used to control daughterboard audio codec. It always transfers
+ 16 bit words in SPI mode 0, automatically asserting CS on transfer
+ start and deasserting on end.
+
+config SPI_NUC900
+ tristate "Nuvoton NUC900 series SPI"
+ depends on ARCH_W90X900
+ select SPI_BITBANG
+ help
+ SPI driver for Nuvoton NUC900 series ARM SoCs
+
+#
+# Add new SPI master controllers in alphabetical order above this line
+#
+
+config SPI_DESIGNWARE
+ tristate "DesignWare SPI controller core support"
+ help
+ general driver for SPI controller core from DesignWare
+
+config SPI_DW_PCI
+ tristate "PCI interface driver for DW SPI core"
+ depends on SPI_DESIGNWARE && PCI
+
+config SPI_DW_MID_DMA
+ bool "DMA support for DW SPI controller on Intel MID platform"
+ depends on SPI_DW_PCI && DW_DMAC_PCI
+
+config SPI_DW_MMIO
+ tristate "Memory-mapped io interface driver for DW SPI core"
+ depends on SPI_DESIGNWARE
+
+#
+# There are lots of SPI device types, with sensors and memory
+# being probably the most widely used ones.
+#
+comment "SPI Protocol Masters"
+
+config SPI_SPIDEV
+ tristate "User mode SPI device driver support"
+ 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)
+
+endif # SPI