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 && GPIOLIB
  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 || COMPILE_TEST)
  73        help
  74          This selects a driver for the Atmel SPI Controller, present on
  75          many AT32 (AVR32) and AT91 (ARM) chips.
  77config SPI_BCM2835
  78        tristate "BCM2835 SPI controller"
  79        depends on ARCH_BCM2835 || COMPILE_TEST
  80        help
  81          This selects a driver for the Broadcom BCM2835 SPI master.
  83          The BCM2835 contains two types of SPI master controller; the
  84          "universal SPI master", and the regular SPI controller. This driver
  85          is for the regular SPI controller. Slave mode operation is not also
  86          not supported.
  88config SPI_BFIN5XX
  89        tristate "SPI controller driver for ADI Blackfin5xx"
  90        depends on BLACKFIN && !BF60x
  91        help
  92          This is the SPI controller master driver for Blackfin 5xx processor.
  94config SPI_BFIN_V3
  95        tristate "SPI controller v3 for Blackfin"
  96        depends on BF60x
  97        help
  98          This is the SPI controller v3 master driver
  99          found on Blackfin 60x processor.
 101config SPI_BFIN_SPORT
 102        tristate "SPI bus via Blackfin SPORT"
 103        depends on BLACKFIN
 104        help
 105          Enable support for a SPI bus via the Blackfin SPORT peripheral.
 107config SPI_AU1550
 108        tristate "Au1550/Au1200/Au1300 SPI Controller"
 109        depends on MIPS_ALCHEMY
 110        select SPI_BITBANG
 111        help
 112          If you say yes to this option, support will be included for the
 113          PSC SPI controller found on Au1550, Au1200 and Au1300 series.
 115config SPI_BCM63XX
 116        tristate "Broadcom BCM63xx SPI controller"
 117        depends on BCM63XX
 118        help
 119          Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
 121config SPI_BITBANG
 122        tristate "Utilities for Bitbanging SPI masters"
 123        help
 124          With a few GPIO pins, your system can bitbang the SPI protocol.
 125          Select this to get SPI support through I/O pins (GPIO, parallel
 126          port, etc).  Or, some systems' SPI master controller drivers use
 127          this code to manage the per-word or per-transfer accesses to the
 128          hardware shift registers.
 130          This is library code, and is automatically selected by drivers that
 131          need it.  You only need to select this explicitly to support driver
 132          modules that aren't part of this kernel tree.
 134config SPI_BUTTERFLY
 135        tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
 136        depends on PARPORT
 137        select SPI_BITBANG
 138        help
 139          This uses a custom parallel port cable to connect to an AVR
 140          Butterfly <>, an
 141          inexpensive battery powered microcontroller evaluation board.
 142          This same cable can be used to flash new firmware.
 144config SPI_CLPS711X
 145        tristate "CLPS711X host SPI controller"
 146        depends on ARCH_CLPS711X
 147        help
 148          This enables dedicated general purpose SPI/Microwire1-compatible
 149          master mode interface (SSI1) for CLPS711X-based CPUs.
 152        tristate "Freescale Coldfire QSPI controller"
 153        depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
 154        help
 155          This enables support for the Coldfire QSPI controller in master
 156          mode.
 158config SPI_DAVINCI
 159        tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
 160        depends on ARCH_DAVINCI || ARCH_KEYSTONE
 161        select SPI_BITBANG
 162        select TI_EDMA
 163        help
 164          SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
 166config SPI_EFM32
 167        tristate "EFM32 SPI controller"
 168        depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 169        select SPI_BITBANG
 170        help
 171          Driver for the spi controller found on Energy Micro's EFM32 SoCs.
 173config SPI_EP93XX
 174        tristate "Cirrus Logic EP93xx SPI controller"
 175        depends on ARCH_EP93XX || COMPILE_TEST
 176        help
 177          This enables using the Cirrus EP93xx SPI controller in master
 178          mode.
 180config SPI_FALCON
 181        tristate "Falcon SPI controller support"
 182        depends on SOC_FALCON
 183        help
 184          The external bus unit (EBU) found on the FALC-ON SoC has SPI
 185          emulation that is designed for serial flash access. This driver
 186          has only been tested with m25p80 type chips. The hardware has no
 187          support for other types of SPI peripherals.
 189config SPI_GPIO
 190        tristate "GPIO-based bitbanging SPI Master"
 191        depends on GPIOLIB
 192        select SPI_BITBANG
 193        help
 194          This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
 195          interface to manage MOSI, MISO, SCK, and chipselect signals.  SPI
 196          slaves connected to a bus using this driver are configured as usual,
 197          except that the spi_board_info.controller_data holds the GPIO number
 198          for the chipselect used by this controller driver.
 200          Note that this driver often won't achieve even 1 Mbit/sec speeds,
 201          making it unusually slow for SPI.  If your platform can inline
 202          GPIO operations, you should be able to leverage that for better
 203          speed with a custom version of this driver; see the source code.
 205config SPI_IMX
 206        tristate "Freescale i.MX SPI controllers"
 207        depends on ARCH_MXC || COMPILE_TEST
 208        select SPI_BITBANG
 209        default m if IMX_HAVE_PLATFORM_SPI_IMX
 210        help
 211          This enables using the Freescale i.MX SPI controllers in master
 212          mode.
 214config SPI_LM70_LLP
 215        tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
 216        depends on PARPORT
 217        select SPI_BITBANG
 218        help
 219          This driver supports the NS LM70 LLP Evaluation Board,
 220          which interfaces to an LM70 temperature sensor using
 221          a parallel port.
 223config SPI_MPC52xx
 224        tristate "Freescale MPC52xx SPI (non-PSC) controller support"
 225        depends on PPC_MPC52xx
 226        help
 227          This drivers supports the MPC52xx SPI controller in master SPI
 228          mode.
 230config SPI_MPC52xx_PSC
 231        tristate "Freescale MPC52xx PSC SPI controller"
 232        depends on PPC_MPC52xx
 233        help
 234          This enables using the Freescale MPC52xx Programmable Serial
 235          Controller in master SPI mode.
 237config SPI_MPC512x_PSC
 238        tristate "Freescale MPC512x PSC SPI controller"
 239        depends on PPC_MPC512x
 240        help
 241          This enables using the Freescale MPC5121 Programmable Serial
 242          Controller in SPI master mode.
 244config SPI_FSL_LIB
 245        tristate
 246        depends on OF
 248config SPI_FSL_CPM
 249        tristate
 250        depends on FSL_SOC
 252config SPI_FSL_SPI
 253        bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller"
 254        depends on OF
 255        select SPI_FSL_LIB
 256        select SPI_FSL_CPM if FSL_SOC
 257        help
 258          This enables using the Freescale SPI controllers in master mode.
 259          MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
 260          MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
 261          This also enables using the Aeroflex Gaisler GRLIB SPI controller in
 262          master mode.
 264config SPI_FSL_DSPI
 265        tristate "Freescale DSPI controller"
 266        select SPI_BITBANG
 267        help
 268          This enables support for the Freescale DSPI controller in master
 269          mode. VF610 platform uses the controller.
 271config SPI_FSL_ESPI
 272        bool "Freescale eSPI controller"
 273        depends on FSL_SOC
 274        select SPI_FSL_LIB
 275        help
 276          This enables using the Freescale eSPI controllers in master mode.
 277          From MPC8536, 85xx platform uses the controller, and all P10xx,
 278          P20xx, P30xx,P40xx, P50xx uses this controller.
 280config SPI_OC_TINY
 281        tristate "OpenCores tiny SPI"
 282        depends on GPIOLIB
 283        select SPI_BITBANG
 284        help
 285          This is the driver for OpenCores tiny SPI master controller.
 287config SPI_OCTEON
 288        tristate "Cavium OCTEON SPI controller"
 289        depends on CAVIUM_OCTEON_SOC
 290        help
 291          SPI host driver for the hardware found on some Cavium OCTEON
 292          SOCs.
 294config SPI_OMAP_UWIRE
 295        tristate "OMAP1 MicroWire"
 296        depends on ARCH_OMAP1
 297        select SPI_BITBANG
 298        help
 299          This hooks up to the MicroWire controller on OMAP1 chips.
 301config SPI_OMAP24XX
 302        tristate "McSPI driver for OMAP"
 303        depends on ARCH_OMAP2PLUS || COMPILE_TEST
 304        help
 305          SPI master controller for OMAP24XX and later Multichannel SPI
 306          (McSPI) modules.
 308config SPI_TI_QSPI
 309        tristate "DRA7xxx QSPI controller support"
 310        depends on ARCH_OMAP2PLUS || COMPILE_TEST
 311        help
 312          QSPI master controller for DRA7xxx used for flash devices.
 313          This device supports single, dual and quad read support, while
 314          it only supports single write mode.
 316config SPI_OMAP_100K
 317        tristate "OMAP SPI 100K"
 318        depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST
 319        help
 320          OMAP SPI 100K master controller for omap7xx boards.
 322config SPI_ORION
 323        tristate "Orion SPI master"
 324        depends on PLAT_ORION || COMPILE_TEST
 325        help
 326          This enables using the SPI master controller on the Orion chips.
 328config SPI_PL022
 329        tristate "ARM AMBA PL022 SSP controller"
 330        depends on ARM_AMBA
 331        default y if MACH_U300
 332        default y if ARCH_REALVIEW
 333        default y if INTEGRATOR_IMPD1
 334        default y if ARCH_VERSATILE
 335        help
 336          This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
 337          controller. If you have an embedded system with an AMBA(R)
 338          bus and a PL022 controller, say Y or M here.
 340config SPI_PPC4xx
 341        tristate "PPC4xx SPI Controller"
 342        depends on PPC32 && 4xx
 343        select SPI_BITBANG
 344        help
 345          This selects a driver for the PPC4xx SPI Controller.
 347config SPI_PXA2XX_PXADMA
 348        bool "PXA2xx SSP legacy PXA DMA API support"
 349        depends on SPI_PXA2XX && ARCH_PXA
 350        help
 351          Enable PXA private legacy DMA API support. Note that this is
 352          deprecated in favor of generic DMA engine API.
 354config SPI_PXA2XX_DMA
 355        def_bool y
 356        depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA
 358config SPI_PXA2XX
 359        tristate "PXA2xx SSP SPI master"
 360        depends on (ARCH_PXA || PCI || ACPI)
 361        select PXA_SSP if ARCH_PXA
 362        help
 363          This enables using a PXA2xx or Sodaville SSP port as a SPI master
 364          controller. The driver can be configured to use any SSP port and
 365          additional documentation can be found a Documentation/spi/pxa2xx.
 367config SPI_PXA2XX_PCI
 368        def_tristate SPI_PXA2XX && PCI
 370config SPI_RSPI
 371        tristate "Renesas RSPI controller"
 372        depends on SUPERH && SH_DMAE_BASE
 373        help
 374          SPI driver for Renesas RSPI blocks.
 376config SPI_S3C24XX
 377        tristate "Samsung S3C24XX series SPI"
 378        depends on ARCH_S3C24XX
 379        select SPI_BITBANG
 380        help
 381          SPI driver for Samsung S3C24XX series ARM SoCs
 383config SPI_S3C24XX_FIQ
 384        bool "S3C24XX driver with FIQ pseudo-DMA"
 385        depends on SPI_S3C24XX
 386        select FIQ
 387        help
 388          Enable FIQ support for the S3C24XX SPI driver to provide pseudo
 389          DMA by using the fast-interrupt request framework, This allows
 390          the driver to get DMA-like performance when there are either
 391          no free DMA channels, or when doing transfers that required both
 392          TX and RX data paths.
 394config SPI_S3C64XX
 395        tristate "Samsung S3C64XX series type SPI"
 396        depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS)
 397        select S3C64XX_DMA if ARCH_S3C64XX
 398        help
 399          SPI driver for Samsung S3C64XX and newer SoCs.
 401config SPI_SC18IS602
 402        tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
 403        depends on I2C
 404        help
 405          SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
 407config SPI_SH_MSIOF
 408        tristate "SuperH MSIOF SPI controller"
 409        depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK
 410        select SPI_BITBANG
 411        help
 412          SPI driver for SuperH and SH Mobile MSIOF blocks.
 414config SPI_SH
 415        tristate "SuperH SPI controller"
 416        depends on SUPERH || COMPILE_TEST
 417        help
 418          SPI driver for SuperH SPI blocks.
 420config SPI_SH_SCI
 421        tristate "SuperH SCI SPI controller"
 422        depends on SUPERH
 423        select SPI_BITBANG
 424        help
 425          SPI driver for SuperH SCI blocks.
 427config SPI_SH_HSPI
 428        tristate "SuperH HSPI controller"
 429        depends on ARCH_SHMOBILE || COMPILE_TEST
 430        help
 431          SPI driver for SuperH HSPI blocks.
 433config SPI_SIRF
 434        tristate "CSR SiRFprimaII SPI controller"
 435        depends on SIRF_DMA
 436        select SPI_BITBANG
 437        help
 438          SPI driver for CSR SiRFprimaII SoCs
 440config SPI_MXS
 441        tristate "Freescale MXS SPI controller"
 442        depends on ARCH_MXS
 443        select STMP_DEVICE
 444        help
 445          SPI driver for Freescale MXS devices.
 447config SPI_TEGRA114
 448        tristate "NVIDIA Tegra114 SPI Controller"
 449        depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
 450        help
 451          SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller
 452          is different than the older SoCs SPI controller and also register interface
 453          get changed with this controller.
 455config SPI_TEGRA20_SFLASH
 456        tristate "Nvidia Tegra20 Serial flash Controller"
 457        depends on ARCH_TEGRA || COMPILE_TEST
 458        help
 459          SPI driver for Nvidia Tegra20 Serial flash Controller interface.
 460          The main usecase of this controller is to use spi flash as boot
 461          device.
 463config SPI_TEGRA20_SLINK
 464        tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
 465        depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
 466        help
 467          SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
 469config SPI_TI_SSP
 470        tristate "TI Sequencer Serial Port - SPI Support"
 471        depends on MFD_TI_SSP
 472        help
 473          This selects an SPI master implementation using a TI sequencer
 474          serial port.
 477        tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
 478        depends on PCI
 479        help
 480          SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
 481          used in some x86 embedded processors.
 483          This driver also supports the ML7213/ML7223/ML7831, a companion chip
 484          for the Atom E6xx series and compatible with the Intel EG20T PCH.
 486config SPI_TXX9
 487        tristate "Toshiba TXx9 SPI controller"
 488        depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST)
 489        help
 490          SPI driver for Toshiba TXx9 MIPS SoCs
 492config SPI_XCOMM
 493        tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
 494        depends on I2C
 495        help
 496          Support for the SPI-I2C bridge found on the Analog Devices
 497          AD-FMCOMMS1-EBZ board.
 499config SPI_XILINX
 500        tristate "Xilinx SPI controller common module"
 501        depends on HAS_IOMEM
 502        select SPI_BITBANG
 503        help
 504          This exposes the SPI controller IP from the Xilinx EDK.
 506          See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
 507          Product Specification document (DS464) for hardware details.
 509          Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 511config SPI_NUC900
 512        tristate "Nuvoton NUC900 series SPI"
 513        depends on ARCH_W90X900
 514        select SPI_BITBANG
 515        help
 516          SPI driver for Nuvoton NUC900 series ARM SoCs
 519# Add new SPI master controllers in alphabetical order above this line
 523        tristate "DesignWare SPI controller core support"
 524        help
 525          general driver for SPI controller core from DesignWare
 527config SPI_DW_PCI
 528        tristate "PCI interface driver for DW SPI core"
 529        depends on SPI_DESIGNWARE && PCI
 531config SPI_DW_MID_DMA
 532        bool "DMA support for DW SPI controller on Intel Moorestown platform"
 533        depends on SPI_DW_PCI && INTEL_MID_DMAC
 535config SPI_DW_MMIO
 536        tristate "Memory-mapped io interface driver for DW SPI core"
 537        depends on SPI_DESIGNWARE && HAVE_CLK
 540# There are lots of SPI device types, with sensors and memory
 541# being probably the most widely used ones.
 543comment "SPI Protocol Masters"
 545config SPI_SPIDEV
 546        tristate "User mode SPI device driver support"
 547        help
 548          This supports user mode SPI protocol drivers.
 550          Note that this application programming interface is EXPERIMENTAL
 551          and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 553config SPI_TLE62X0
 554        tristate "Infineon TLE62X0 (for power switching)"
 555        depends on SYSFS
 556        help
 557          SPI driver for Infineon TLE62X0 series line driver chips,
 558          such as the TLE6220, TLE6230 and TLE6240.  This provides a
 559          sysfs interface, with each line presented as a kind of GPIO
 560          exposing both switch control and diagnostic feedback.
 563# Add new SPI protocol masters in alphabetical order above this line
 566endif # SPI_MASTER
 568# (slave support would go here)
 570endif # SPI
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