2# SPI driver configuration
   4# NOTE:  the reason this doesn't show SPI slave support is mostly that
   5# nobody's needed a slave side API yet.  The master-role API is not
   6# fully appropriate there, so it'd need some thought to do well.
   8menuconfig SPI
   9        bool "SPI support"
  10        depends on HAS_IOMEM
  11        help
  12          The "Serial Peripheral Interface" is a low level synchronous
  13          protocol.  Chips that support SPI can have data transfer rates
  14          up to several tens of Mbit/sec.  Chips are addressed with a
  15          controller and a chipselect.  Most SPI slaves don't support
  16          dynamic device discovery; some are even write-only or read-only.
  18          SPI is widely used by microcontrollers to talk with sensors,
  19          eeprom and flash memory, codecs and various other controller
  20          chips, analog to digital (and d-to-a) converters, and more.
  21          MMC and SD cards can be accessed using SPI protocol; and for
  22          DataFlash cards used in MMC sockets, SPI must always be used.
  24          SPI is one of a family of similar protocols using a four wire
  25          interface (select, clock, data in, data out) including Microwire
  26          (half duplex), SSP, SSI, and PSP.  This driver framework should
  27          work with most such devices and controllers.
  29if SPI
  31config SPI_DEBUG
  32        boolean "Debug support for SPI drivers"
  33        depends on DEBUG_KERNEL
  34        help
  35          Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
  36          sysfs, and debugfs support in SPI controller and protocol drivers.
  39# MASTER side ... talking to discrete SPI slave chips including microcontrollers
  42config SPI_MASTER
  43#       boolean "SPI Master Support"
  44        boolean
  45        default SPI
  46        help
  47          If your system has an master-capable SPI controller (which
  48          provides the clock and chipselect), you can enable that
  49          controller and the protocol drivers for the SPI slave chips
  50          that are connected.
  54comment "SPI Master Controller Drivers"
  56config SPI_ALTERA
  57        tristate "Altera SPI Controller"
  58        depends on GENERIC_HARDIRQS
  59        select SPI_BITBANG
  60        help
  61          This is the driver for the Altera SPI Controller.
  63config SPI_ATH79
  64        tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
  65        depends on ATH79 && GENERIC_GPIO
  66        select SPI_BITBANG
  67        help
  68          This enables support for the SPI controller present on the
  69          Atheros AR71XX/AR724X/AR913X SoCs.
  71config SPI_ATMEL
  72        tristate "Atmel SPI Controller"
  73        depends on (ARCH_AT91 || AVR32)
  74        help
  75          This selects a driver for the Atmel SPI Controller, present on
  76          many AT32 (AVR32) and AT91 (ARM) chips.
  78config SPI_BFIN5XX
  79        tristate "SPI controller driver for ADI Blackfin5xx"
  80        depends on BLACKFIN
  81        help
  82          This is the SPI controller master driver for Blackfin 5xx processor.
  84config SPI_BFIN_SPORT
  85        tristate "SPI bus via Blackfin SPORT"
  86        depends on BLACKFIN
  87        help
  88          Enable support for a SPI bus via the Blackfin SPORT peripheral.
  90config SPI_AU1550
  91        tristate "Au1550/Au1200/Au1300 SPI Controller"
  92        depends on MIPS_ALCHEMY
  93        select SPI_BITBANG
  94        help
  95          If you say yes to this option, support will be included for the
  96          PSC SPI controller found on Au1550, Au1200 and Au1300 series.
  98config SPI_BCM63XX
  99        tristate "Broadcom BCM63xx SPI controller"
 100        depends on BCM63XX
 101        help
 102          Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
 104config SPI_BITBANG
 105        tristate "Utilities for Bitbanging SPI masters"
 106        help
 107          With a few GPIO pins, your system can bitbang the SPI protocol.
 108          Select this to get SPI support through I/O pins (GPIO, parallel
 109          port, etc).  Or, some systems' SPI master controller drivers use
 110          this code to manage the per-word or per-transfer accesses to the
 111          hardware shift registers.
 113          This is library code, and is automatically selected by drivers that
 114          need it.  You only need to select this explicitly to support driver
 115          modules that aren't part of this kernel tree.
 117config SPI_BUTTERFLY
 118        tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
 119        depends on PARPORT
 120        select SPI_BITBANG
 121        help
 122          This uses a custom parallel port cable to connect to an AVR
 123          Butterfly <>, an
 124          inexpensive battery powered microcontroller evaluation board.
 125          This same cable can be used to flash new firmware.
 127config SPI_CLPS711X
 128        tristate "CLPS711X host SPI controller"
 129        depends on ARCH_CLPS711X
 130        help
 131          This enables dedicated general purpose SPI/Microwire1-compatible
 132          master mode interface (SSI1) for CLPS711X-based CPUs.
 135        tristate "Freescale Coldfire QSPI controller"
 136        depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
 137        help
 138          This enables support for the Coldfire QSPI controller in master
 139          mode.
 141config SPI_DAVINCI
 142        tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
 143        depends on ARCH_DAVINCI
 144        select SPI_BITBANG
 145        select TI_EDMA
 146        help
 147          SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
 149config SPI_EP93XX
 150        tristate "Cirrus Logic EP93xx SPI controller"
 151        depends on ARCH_EP93XX
 152        help
 153          This enables using the Cirrus EP93xx SPI controller in master
 154          mode.
 156config SPI_FALCON
 157        tristate "Falcon SPI controller support"
 158        depends on SOC_FALCON
 159        help
 160          The external bus unit (EBU) found on the FALC-ON SoC has SPI
 161          emulation that is designed for serial flash access. This driver
 162          has only been tested with m25p80 type chips. The hardware has no
 163          support for other types of SPI peripherals.
 165config SPI_GPIO
 166        tristate "GPIO-based bitbanging SPI Master"
 167        depends on GENERIC_GPIO
 168        select SPI_BITBANG
 169        help
 170          This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
 171          interface to manage MOSI, MISO, SCK, and chipselect signals.  SPI
 172          slaves connected to a bus using this driver are configured as usual,
 173          except that the spi_board_info.controller_data holds the GPIO number
 174          for the chipselect used by this controller driver.
 176          Note that this driver often won't achieve even 1 Mbit/sec speeds,
 177          making it unusually slow for SPI.  If your platform can inline
 178          GPIO operations, you should be able to leverage that for better
 179          speed with a custom version of this driver; see the source code.
 181config SPI_IMX
 182        tristate "Freescale i.MX SPI controllers"
 183        depends on ARCH_MXC
 184        select SPI_BITBANG
 185        default m if IMX_HAVE_PLATFORM_SPI_IMX
 186        help
 187          This enables using the Freescale i.MX SPI controllers in master
 188          mode.
 190config SPI_LM70_LLP
 191        tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
 192        depends on PARPORT
 193        select SPI_BITBANG
 194        help
 195          This driver supports the NS LM70 LLP Evaluation Board,
 196          which interfaces to an LM70 temperature sensor using
 197          a parallel port.
 199config SPI_MPC52xx
 200        tristate "Freescale MPC52xx SPI (non-PSC) controller support"
 201        depends on PPC_MPC52xx
 202        help
 203          This drivers supports the MPC52xx SPI controller in master SPI
 204          mode.
 206config SPI_MPC52xx_PSC
 207        tristate "Freescale MPC52xx PSC SPI controller"
 208        depends on PPC_MPC52xx
 209        help
 210          This enables using the Freescale MPC52xx Programmable Serial
 211          Controller in master SPI mode.
 213config SPI_MPC512x_PSC
 214        tristate "Freescale MPC512x PSC SPI controller"
 215        depends on PPC_MPC512x
 216        help
 217          This enables using the Freescale MPC5121 Programmable Serial
 218          Controller in SPI master mode.
 220config SPI_FSL_LIB
 221        tristate
 222        depends on FSL_SOC
 224config SPI_FSL_SPI
 225        bool "Freescale SPI controller"
 226        depends on FSL_SOC
 227        select SPI_FSL_LIB
 228        help
 229          This enables using the Freescale SPI controllers in master mode.
 230          MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
 231          MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
 233config SPI_FSL_ESPI
 234        bool "Freescale eSPI controller"
 235        depends on FSL_SOC
 236        select SPI_FSL_LIB
 237        help
 238          This enables using the Freescale eSPI controllers in master mode.
 239          From MPC8536, 85xx platform uses the controller, and all P10xx,
 240          P20xx, P30xx,P40xx, P50xx uses this controller.
 242config SPI_OC_TINY
 243        tristate "OpenCores tiny SPI"
 244        depends on GENERIC_GPIO
 245        select SPI_BITBANG
 246        help
 247          This is the driver for OpenCores tiny SPI master controller.
 249config SPI_OCTEON
 250        tristate "Cavium OCTEON SPI controller"
 251        depends on CPU_CAVIUM_OCTEON
 252        help
 253          SPI host driver for the hardware found on some Cavium OCTEON
 254          SOCs.
 256config SPI_OMAP_UWIRE
 257        tristate "OMAP1 MicroWire"
 258        depends on ARCH_OMAP1
 259        select SPI_BITBANG
 260        help
 261          This hooks up to the MicroWire controller on OMAP1 chips.
 263config SPI_OMAP24XX
 264        tristate "McSPI driver for OMAP"
 265        depends on ARCH_OMAP2PLUS
 266        help
 267          SPI master controller for OMAP24XX and later Multichannel SPI
 268          (McSPI) modules.
 270config SPI_OMAP_100K
 271        tristate "OMAP SPI 100K"
 272        depends on ARCH_OMAP850 || ARCH_OMAP730
 273        help
 274          OMAP SPI 100K master controller for omap7xx boards.
 276config SPI_ORION
 277        tristate "Orion SPI master"
 278        depends on PLAT_ORION
 279        help
 280          This enables using the SPI master controller on the Orion chips.
 282config SPI_PL022
 283        tristate "ARM AMBA PL022 SSP controller"
 284        depends on ARM_AMBA
 285        default y if MACH_U300
 286        default y if ARCH_REALVIEW
 287        default y if INTEGRATOR_IMPD1
 288        default y if ARCH_VERSATILE
 289        help
 290          This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
 291          controller. If you have an embedded system with an AMBA(R)
 292          bus and a PL022 controller, say Y or M here.
 294config SPI_PPC4xx
 295        tristate "PPC4xx SPI Controller"
 296        depends on PPC32 && 4xx
 297        select SPI_BITBANG
 298        help
 299          This selects a driver for the PPC4xx SPI Controller.
 301config SPI_PXA2XX_PXADMA
 302        bool "PXA2xx SSP legacy PXA DMA API support"
 303        depends on SPI_PXA2XX && ARCH_PXA
 304        help
 305          Enable PXA private legacy DMA API support. Note that this is
 306          deprecated in favor of generic DMA engine API.
 308config SPI_PXA2XX_DMA
 309        def_bool y
 310        depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA
 312config SPI_PXA2XX
 313        tristate "PXA2xx SSP SPI master"
 314        depends on (ARCH_PXA || PCI || ACPI) && GENERIC_HARDIRQS
 315        select PXA_SSP if ARCH_PXA
 316        help
 317          This enables using a PXA2xx or Sodaville SSP port as a SPI master
 318          controller. The driver can be configured to use any SSP port and
 319          additional documentation can be found a Documentation/spi/pxa2xx.
 321config SPI_PXA2XX_PCI
 322        def_tristate SPI_PXA2XX && PCI
 324config SPI_RSPI
 325        tristate "Renesas RSPI controller"
 326        depends on SUPERH
 327        help
 328          SPI driver for Renesas RSPI blocks.
 330config SPI_S3C24XX
 331        tristate "Samsung S3C24XX series SPI"
 332        depends on ARCH_S3C24XX
 333        select SPI_BITBANG
 334        help
 335          SPI driver for Samsung S3C24XX series ARM SoCs
 337config SPI_S3C24XX_FIQ
 338        bool "S3C24XX driver with FIQ pseudo-DMA"
 339        depends on SPI_S3C24XX
 340        select FIQ
 341        help
 342          Enable FIQ support for the S3C24XX SPI driver to provide pseudo
 343          DMA by using the fast-interrupt request framework, This allows
 344          the driver to get DMA-like performance when there are either
 345          no free DMA channels, or when doing transfers that required both
 346          TX and RX data paths.
 348config SPI_S3C64XX
 349        tristate "Samsung S3C64XX series type SPI"
 350        depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS)
 351        select S3C64XX_DMA if ARCH_S3C64XX
 352        help
 353          SPI driver for Samsung S3C64XX and newer SoCs.
 355config SPI_SC18IS602
 356        tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
 357        depends on I2C
 358        help
 359          SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
 361config SPI_SH_MSIOF
 362        tristate "SuperH MSIOF SPI controller"
 363        depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK
 364        select SPI_BITBANG
 365        help
 366          SPI driver for SuperH and SH Mobile MSIOF blocks.
 368config SPI_SH
 369        tristate "SuperH SPI controller"
 370        depends on SUPERH
 371        help
 372          SPI driver for SuperH SPI blocks.
 374config SPI_SH_SCI
 375        tristate "SuperH SCI SPI controller"
 376        depends on SUPERH
 377        select SPI_BITBANG
 378        help
 379          SPI driver for SuperH SCI blocks.
 381config SPI_SH_HSPI
 382        tristate "SuperH HSPI controller"
 383        depends on ARCH_SHMOBILE
 384        help
 385          SPI driver for SuperH HSPI blocks.
 387config SPI_SIRF
 388        tristate "CSR SiRFprimaII SPI controller"
 389        depends on ARCH_PRIMA2
 390        select SPI_BITBANG
 391        help
 392          SPI driver for CSR SiRFprimaII SoCs
 394config SPI_MXS
 395        tristate "Freescale MXS SPI controller"
 396        depends on ARCH_MXS
 397        select STMP_DEVICE
 398        help
 399          SPI driver for Freescale MXS devices.
 401config SPI_TEGRA20_SFLASH
 402        tristate "Nvidia Tegra20 Serial flash Controller"
 403        depends on ARCH_TEGRA
 404        help
 405          SPI driver for Nvidia Tegra20 Serial flash Controller interface.
 406          The main usecase of this controller is to use spi flash as boot
 407          device.
 409config SPI_TEGRA20_SLINK
 410        tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
 411        depends on ARCH_TEGRA && TEGRA20_APB_DMA
 412        help
 413          SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
 415config SPI_TI_SSP
 416        tristate "TI Sequencer Serial Port - SPI Support"
 417        depends on MFD_TI_SSP
 418        help
 419          This selects an SPI master implementation using a TI sequencer
 420          serial port.
 423        tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
 424        depends on PCI
 425        help
 426          SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
 427          used in some x86 embedded processors.
 429          This driver also supports the ML7213/ML7223/ML7831, a companion chip
 430          for the Atom E6xx series and compatible with the Intel EG20T PCH.
 432config SPI_TXX9
 433        tristate "Toshiba TXx9 SPI controller"
 434        depends on GENERIC_GPIO && CPU_TX49XX
 435        help
 436          SPI driver for Toshiba TXx9 MIPS SoCs
 438config SPI_XCOMM
 439        tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
 440        depends on I2C
 441        help
 442          Support for the SPI-I2C bridge found on the Analog Devices
 443          AD-FMCOMMS1-EBZ board.
 445config SPI_XILINX
 446        tristate "Xilinx SPI controller common module"
 447        depends on HAS_IOMEM
 448        select SPI_BITBANG
 449        help
 450          This exposes the SPI controller IP from the Xilinx EDK.
 452          See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
 453          Product Specification document (DS464) for hardware details.
 455          Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 457config SPI_NUC900
 458        tristate "Nuvoton NUC900 series SPI"
 459        depends on ARCH_W90X900
 460        select SPI_BITBANG
 461        help
 462          SPI driver for Nuvoton NUC900 series ARM SoCs
 465# Add new SPI master controllers in alphabetical order above this line
 469        tristate "DesignWare SPI controller core support"
 470        help
 471          general driver for SPI controller core from DesignWare
 473config SPI_DW_PCI
 474        tristate "PCI interface driver for DW SPI core"
 475        depends on SPI_DESIGNWARE && PCI
 477config SPI_DW_MID_DMA
 478        bool "DMA support for DW SPI controller on Intel Moorestown platform"
 479        depends on SPI_DW_PCI && INTEL_MID_DMAC
 481config SPI_DW_MMIO
 482        tristate "Memory-mapped io interface driver for DW SPI core"
 483        depends on SPI_DESIGNWARE && HAVE_CLK
 486# There are lots of SPI device types, with sensors and memory
 487# being probably the most widely used ones.
 489comment "SPI Protocol Masters"
 491config SPI_SPIDEV
 492        tristate "User mode SPI device driver support"
 493        help
 494          This supports user mode SPI protocol drivers.
 496          Note that this application programming interface is EXPERIMENTAL
 497          and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 499config SPI_TLE62X0
 500        tristate "Infineon TLE62X0 (for power switching)"
 501        depends on SYSFS
 502        help
 503          SPI driver for Infineon TLE62X0 series line driver chips,
 504          such as the TLE6220, TLE6230 and TLE6240.  This provides a
 505          sysfs interface, with each line presented as a kind of GPIO
 506          exposing both switch control and diagnostic feedback.
 509# Add new SPI protocol masters in alphabetical order above this line
 512endif # SPI_MASTER
 514# (slave support would go here)
 516endif # SPI
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