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        select SPI_BITBANG
  59        help
  60          This is the driver for the Altera SPI Controller.
  62config SPI_ATH79
  63        tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
  64        depends on ATH79 && GENERIC_GPIO
  65        select SPI_BITBANG
  66        help
  67          This enables support for the SPI controller present on the
  68          Atheros AR71XX/AR724X/AR913X SoCs.
  70config SPI_ATMEL
  71        tristate "Atmel SPI Controller"
  72        depends on (ARCH_AT91 || AVR32)
  73        help
  74          This selects a driver for the Atmel SPI Controller, present on
  75          many AT32 (AVR32) and AT91 (ARM) chips.
  77config SPI_BFIN5XX
  78        tristate "SPI controller driver for ADI Blackfin5xx"
  79        depends on BLACKFIN
  80        help
  81          This is the SPI controller master driver for Blackfin 5xx processor.
  83config SPI_BFIN_SPORT
  84        tristate "SPI bus via Blackfin SPORT"
  85        depends on BLACKFIN
  86        help
  87          Enable support for a SPI bus via the Blackfin SPORT peripheral.
  89config SPI_AU1550
  90        tristate "Au1550/Au1200/Au1300 SPI Controller"
  91        depends on MIPS_ALCHEMY && EXPERIMENTAL
  92        select SPI_BITBANG
  93        help
  94          If you say yes to this option, support will be included for the
  95          PSC SPI controller found on Au1550, Au1200 and Au1300 series.
  97config SPI_BCM63XX
  98        tristate "Broadcom BCM63xx SPI controller"
  99        depends on BCM63XX
 100        help
 101          Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
 103config SPI_BITBANG
 104        tristate "Utilities for Bitbanging SPI masters"
 105        help
 106          With a few GPIO pins, your system can bitbang the SPI protocol.
 107          Select this to get SPI support through I/O pins (GPIO, parallel
 108          port, etc).  Or, some systems' SPI master controller drivers use
 109          this code to manage the per-word or per-transfer accesses to the
 110          hardware shift registers.
 112          This is library code, and is automatically selected by drivers that
 113          need it.  You only need to select this explicitly to support driver
 114          modules that aren't part of this kernel tree.
 116config SPI_BUTTERFLY
 117        tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
 118        depends on PARPORT
 119        select SPI_BITBANG
 120        help
 121          This uses a custom parallel port cable to connect to an AVR
 122          Butterfly <>, an
 123          inexpensive battery powered microcontroller evaluation board.
 124          This same cable can be used to flash new firmware.
 126config SPI_CLPS711X
 127        tristate "CLPS711X host SPI controller"
 128        depends on ARCH_CLPS711X
 129        help
 130          This enables dedicated general purpose SPI/Microwire1-compatible
 131          master mode interface (SSI1) for CLPS711X-based CPUs.
 134        tristate "Freescale Coldfire QSPI controller"
 135        depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
 136        help
 137          This enables support for the Coldfire QSPI controller in master
 138          mode.
 140config SPI_DAVINCI
 141        tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
 142        depends on ARCH_DAVINCI
 143        select SPI_BITBANG
 144        select TI_EDMA
 145        help
 146          SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
 148config SPI_EP93XX
 149        tristate "Cirrus Logic EP93xx SPI controller"
 150        depends on ARCH_EP93XX
 151        help
 152          This enables using the Cirrus EP93xx SPI controller in master
 153          mode.
 155config SPI_FALCON
 156        tristate "Falcon SPI controller support"
 157        depends on SOC_FALCON
 158        help
 159          The external bus unit (EBU) found on the FALC-ON SoC has SPI
 160          emulation that is designed for serial flash access. This driver
 161          has only been tested with m25p80 type chips. The hardware has no
 162          support for other types of SPI peripherals.
 164config SPI_GPIO
 165        tristate "GPIO-based bitbanging SPI Master"
 166        depends on GENERIC_GPIO
 167        select SPI_BITBANG
 168        help
 169          This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
 170          interface to manage MOSI, MISO, SCK, and chipselect signals.  SPI
 171          slaves connected to a bus using this driver are configured as usual,
 172          except that the spi_board_info.controller_data holds the GPIO number
 173          for the chipselect used by this controller driver.
 175          Note that this driver often won't achieve even 1 Mbit/sec speeds,
 176          making it unusually slow for SPI.  If your platform can inline
 177          GPIO operations, you should be able to leverage that for better
 178          speed with a custom version of this driver; see the source code.
 180config SPI_IMX
 181        tristate "Freescale i.MX SPI controllers"
 182        depends on ARCH_MXC
 183        select SPI_BITBANG
 184        default m if IMX_HAVE_PLATFORM_SPI_IMX
 185        help
 186          This enables using the Freescale i.MX SPI controllers in master
 187          mode.
 189config SPI_LM70_LLP
 190        tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
 191        depends on PARPORT && EXPERIMENTAL
 192        select SPI_BITBANG
 193        help
 194          This driver supports the NS LM70 LLP Evaluation Board,
 195          which interfaces to an LM70 temperature sensor using
 196          a parallel port.
 198config SPI_MPC52xx
 199        tristate "Freescale MPC52xx SPI (non-PSC) controller support"
 200        depends on PPC_MPC52xx
 201        help
 202          This drivers supports the MPC52xx SPI controller in master SPI
 203          mode.
 205config SPI_MPC52xx_PSC
 206        tristate "Freescale MPC52xx PSC SPI controller"
 207        depends on PPC_MPC52xx && EXPERIMENTAL
 208        help
 209          This enables using the Freescale MPC52xx Programmable Serial
 210          Controller in master SPI mode.
 212config SPI_MPC512x_PSC
 213        tristate "Freescale MPC512x PSC SPI controller"
 214        depends on PPC_MPC512x
 215        help
 216          This enables using the Freescale MPC5121 Programmable Serial
 217          Controller in SPI master mode.
 219config SPI_FSL_LIB
 220        tristate
 221        depends on FSL_SOC
 223config SPI_FSL_SPI
 224        bool "Freescale SPI controller"
 225        depends on FSL_SOC
 226        select SPI_FSL_LIB
 227        help
 228          This enables using the Freescale SPI controllers in master mode.
 229          MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
 230          MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
 232config SPI_FSL_ESPI
 233        bool "Freescale eSPI controller"
 234        depends on FSL_SOC
 235        select SPI_FSL_LIB
 236        help
 237          This enables using the Freescale eSPI controllers in master mode.
 238          From MPC8536, 85xx platform uses the controller, and all P10xx,
 239          P20xx, P30xx,P40xx, P50xx uses this controller.
 241config SPI_OC_TINY
 242        tristate "OpenCores tiny SPI"
 243        depends on GENERIC_GPIO
 244        select SPI_BITBANG
 245        help
 246          This is the driver for OpenCores tiny SPI master controller.
 248config SPI_OCTEON
 249        tristate "Cavium OCTEON SPI controller"
 250        depends on CPU_CAVIUM_OCTEON
 251        help
 252          SPI host driver for the hardware found on some Cavium OCTEON
 253          SOCs.
 255config SPI_OMAP_UWIRE
 256        tristate "OMAP1 MicroWire"
 257        depends on ARCH_OMAP1
 258        select SPI_BITBANG
 259        help
 260          This hooks up to the MicroWire controller on OMAP1 chips.
 262config SPI_OMAP24XX
 263        tristate "McSPI driver for OMAP"
 264        depends on ARCH_OMAP2PLUS
 265        help
 266          SPI master controller for OMAP24XX and later Multichannel SPI
 267          (McSPI) modules.
 269config SPI_OMAP_100K
 270        tristate "OMAP SPI 100K"
 271        depends on ARCH_OMAP850 || ARCH_OMAP730
 272        help
 273          OMAP SPI 100K master controller for omap7xx boards.
 275config SPI_ORION
 276        tristate "Orion SPI master (EXPERIMENTAL)"
 277        depends on PLAT_ORION && EXPERIMENTAL
 278        help
 279          This enables using the SPI master controller on the Orion chips.
 281config SPI_PL022
 282        tristate "ARM AMBA PL022 SSP controller"
 283        depends on ARM_AMBA
 284        default y if MACH_U300
 285        default y if ARCH_REALVIEW
 286        default y if INTEGRATOR_IMPD1
 287        default y if ARCH_VERSATILE
 288        help
 289          This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
 290          controller. If you have an embedded system with an AMBA(R)
 291          bus and a PL022 controller, say Y or M here.
 293config SPI_PPC4xx
 294        tristate "PPC4xx SPI Controller"
 295        depends on PPC32 && 4xx
 296        select SPI_BITBANG
 297        help
 298          This selects a driver for the PPC4xx SPI Controller.
 300config SPI_PXA2XX
 301        tristate "PXA2xx SSP SPI master"
 302        depends on (ARCH_PXA || (X86_32 && PCI)) && EXPERIMENTAL
 303        select PXA_SSP if ARCH_PXA
 304        help
 305          This enables using a PXA2xx or Sodaville SSP port as a SPI master
 306          controller. The driver can be configured to use any SSP port and
 307          additional documentation can be found a Documentation/spi/pxa2xx.
 309config SPI_PXA2XX_PCI
 310        def_bool SPI_PXA2XX && X86_32 && PCI
 312config SPI_RSPI
 313        tristate "Renesas RSPI controller"
 314        depends on SUPERH
 315        help
 316          SPI driver for Renesas RSPI blocks.
 318config SPI_S3C24XX
 319        tristate "Samsung S3C24XX series SPI"
 320        depends on ARCH_S3C24XX && EXPERIMENTAL
 321        select SPI_BITBANG
 322        help
 323          SPI driver for Samsung S3C24XX series ARM SoCs
 325config SPI_S3C24XX_FIQ
 326        bool "S3C24XX driver with FIQ pseudo-DMA"
 327        depends on SPI_S3C24XX
 328        select FIQ
 329        help
 330          Enable FIQ support for the S3C24XX SPI driver to provide pseudo
 331          DMA by using the fast-interrupt request framework, This allows
 332          the driver to get DMA-like performance when there are either
 333          no free DMA channels, or when doing transfers that required both
 334          TX and RX data paths.
 336config SPI_S3C64XX
 337        tristate "Samsung S3C64XX series type SPI"
 338        depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS)
 339        select S3C64XX_DMA if ARCH_S3C64XX
 340        help
 341          SPI driver for Samsung S3C64XX and newer SoCs.
 343config SPI_SC18IS602
 344        tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
 345        depends on I2C
 346        help
 347          SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
 349config SPI_SH_MSIOF
 350        tristate "SuperH MSIOF SPI controller"
 351        depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK
 352        select SPI_BITBANG
 353        help
 354          SPI driver for SuperH and SH Mobile MSIOF blocks.
 356config SPI_SH
 357        tristate "SuperH SPI controller"
 358        depends on SUPERH
 359        help
 360          SPI driver for SuperH SPI blocks.
 362config SPI_SH_SCI
 363        tristate "SuperH SCI SPI controller"
 364        depends on SUPERH
 365        select SPI_BITBANG
 366        help
 367          SPI driver for SuperH SCI blocks.
 369config SPI_SH_HSPI
 370        tristate "SuperH HSPI controller"
 371        depends on ARCH_SHMOBILE
 372        help
 373          SPI driver for SuperH HSPI blocks.
 375config SPI_SIRF
 376        tristate "CSR SiRFprimaII SPI controller"
 377        depends on ARCH_PRIMA2
 378        select SPI_BITBANG
 379        help
 380          SPI driver for CSR SiRFprimaII SoCs
 382config SPI_MXS
 383        tristate "Freescale MXS SPI controller"
 384        depends on ARCH_MXS
 385        select STMP_DEVICE
 386        help
 387          SPI driver for Freescale MXS devices.
 389config SPI_TEGRA20_SFLASH
 390        tristate "Nvidia Tegra20 Serial flash Controller"
 391        depends on ARCH_TEGRA
 392        help
 393          SPI driver for Nvidia Tegra20 Serial flash Controller interface.
 394          The main usecase of this controller is to use spi flash as boot
 395          device.
 397config SPI_TEGRA20_SLINK
 398        tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
 399        depends on ARCH_TEGRA && TEGRA20_APB_DMA
 400        help
 401          SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
 403config SPI_TI_SSP
 404        tristate "TI Sequencer Serial Port - SPI Support"
 405        depends on MFD_TI_SSP
 406        help
 407          This selects an SPI master implementation using a TI sequencer
 408          serial port.
 411        tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
 412        depends on PCI
 413        help
 414          SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
 415          used in some x86 embedded processors.
 417          This driver also supports the ML7213/ML7223/ML7831, a companion chip
 418          for the Atom E6xx series and compatible with the Intel EG20T PCH.
 420config SPI_TXX9
 421        tristate "Toshiba TXx9 SPI controller"
 422        depends on GENERIC_GPIO && CPU_TX49XX
 423        help
 424          SPI driver for Toshiba TXx9 MIPS SoCs
 426config SPI_XCOMM
 427        tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
 428        depends on I2C
 429        help
 430          Support for the SPI-I2C bridge found on the Analog Devices
 431          AD-FMCOMMS1-EBZ board.
 433config SPI_XILINX
 434        tristate "Xilinx SPI controller common module"
 435        depends on HAS_IOMEM && EXPERIMENTAL
 436        select SPI_BITBANG
 437        help
 438          This exposes the SPI controller IP from the Xilinx EDK.
 440          See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
 441          Product Specification document (DS464) for hardware details.
 443          Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 445config SPI_NUC900
 446        tristate "Nuvoton NUC900 series SPI"
 447        depends on ARCH_W90X900 && EXPERIMENTAL
 448        select SPI_BITBANG
 449        help
 450          SPI driver for Nuvoton NUC900 series ARM SoCs
 453# Add new SPI master controllers in alphabetical order above this line
 457        tristate "DesignWare SPI controller core support"
 458        help
 459          general driver for SPI controller core from DesignWare
 461config SPI_DW_PCI
 462        tristate "PCI interface driver for DW SPI core"
 463        depends on SPI_DESIGNWARE && PCI
 465config SPI_DW_MID_DMA
 466        bool "DMA support for DW SPI controller on Intel Moorestown platform"
 467        depends on SPI_DW_PCI && INTEL_MID_DMAC
 469config SPI_DW_MMIO
 470        tristate "Memory-mapped io interface driver for DW SPI core"
 471        depends on SPI_DESIGNWARE && HAVE_CLK
 474# There are lots of SPI device types, with sensors and memory
 475# being probably the most widely used ones.
 477comment "SPI Protocol Masters"
 479config SPI_SPIDEV
 480        tristate "User mode SPI device driver support"
 481        depends on EXPERIMENTAL
 482        help
 483          This supports user mode SPI protocol drivers.
 485          Note that this application programming interface is EXPERIMENTAL
 486          and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 488config SPI_TLE62X0
 489        tristate "Infineon TLE62X0 (for power switching)"
 490        depends on SYSFS
 491        help
 492          SPI driver for Infineon TLE62X0 series line driver chips,
 493          such as the TLE6220, TLE6230 and TLE6240.  This provides a
 494          sysfs interface, with each line presented as a kind of GPIO
 495          exposing both switch control and diagnostic feedback.
 498# Add new SPI protocol masters in alphabetical order above this line
 501endif # SPI_MASTER
 503# (slave support would go here)
 505endif # SPI
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