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.
 127        tristate "Freescale Coldfire QSPI controller"
 128        depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
 129        help
 130          This enables support for the Coldfire QSPI controller in master
 131          mode.
 133config SPI_DAVINCI
 134        tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
 135        depends on ARCH_DAVINCI
 136        select SPI_BITBANG
 137        select TI_EDMA
 138        help
 139          SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
 141config SPI_EP93XX
 142        tristate "Cirrus Logic EP93xx SPI controller"
 143        depends on ARCH_EP93XX
 144        help
 145          This enables using the Cirrus EP93xx SPI controller in master
 146          mode.
 148config SPI_FALCON
 149        tristate "Falcon SPI controller support"
 150        depends on SOC_FALCON
 151        help
 152          The external bus unit (EBU) found on the FALC-ON SoC has SPI
 153          emulation that is designed for serial flash access. This driver
 154          has only been tested with m25p80 type chips. The hardware has no
 155          support for other types of SPI peripherals.
 157config SPI_GPIO
 158        tristate "GPIO-based bitbanging SPI Master"
 159        depends on GENERIC_GPIO
 160        select SPI_BITBANG
 161        help
 162          This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
 163          interface to manage MOSI, MISO, SCK, and chipselect signals.  SPI
 164          slaves connected to a bus using this driver are configured as usual,
 165          except that the spi_board_info.controller_data holds the GPIO number
 166          for the chipselect used by this controller driver.
 168          Note that this driver often won't achieve even 1 Mbit/sec speeds,
 169          making it unusually slow for SPI.  If your platform can inline
 170          GPIO operations, you should be able to leverage that for better
 171          speed with a custom version of this driver; see the source code.
 173config SPI_IMX
 174        tristate "Freescale i.MX SPI controllers"
 175        depends on ARCH_MXC
 176        select SPI_BITBANG
 177        default m if IMX_HAVE_PLATFORM_SPI_IMX
 178        help
 179          This enables using the Freescale i.MX SPI controllers in master
 180          mode.
 182config SPI_LM70_LLP
 183        tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
 184        depends on PARPORT && EXPERIMENTAL
 185        select SPI_BITBANG
 186        help
 187          This driver supports the NS LM70 LLP Evaluation Board,
 188          which interfaces to an LM70 temperature sensor using
 189          a parallel port.
 191config SPI_MPC52xx
 192        tristate "Freescale MPC52xx SPI (non-PSC) controller support"
 193        depends on PPC_MPC52xx
 194        help
 195          This drivers supports the MPC52xx SPI controller in master SPI
 196          mode.
 198config SPI_MPC52xx_PSC
 199        tristate "Freescale MPC52xx PSC SPI controller"
 200        depends on PPC_MPC52xx && EXPERIMENTAL
 201        help
 202          This enables using the Freescale MPC52xx Programmable Serial
 203          Controller in master SPI mode.
 205config SPI_MPC512x_PSC
 206        tristate "Freescale MPC512x PSC SPI controller"
 207        depends on PPC_MPC512x
 208        help
 209          This enables using the Freescale MPC5121 Programmable Serial
 210          Controller in SPI master mode.
 212config SPI_FSL_LIB
 213        tristate
 214        depends on FSL_SOC
 216config SPI_FSL_SPI
 217        bool "Freescale SPI controller"
 218        depends on FSL_SOC
 219        select SPI_FSL_LIB
 220        help
 221          This enables using the Freescale SPI controllers in master mode.
 222          MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
 223          MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
 225config SPI_FSL_ESPI
 226        bool "Freescale eSPI controller"
 227        depends on FSL_SOC
 228        select SPI_FSL_LIB
 229        help
 230          This enables using the Freescale eSPI controllers in master mode.
 231          From MPC8536, 85xx platform uses the controller, and all P10xx,
 232          P20xx, P30xx,P40xx, P50xx uses this controller.
 234config SPI_OC_TINY
 235        tristate "OpenCores tiny SPI"
 236        depends on GENERIC_GPIO
 237        select SPI_BITBANG
 238        help
 239          This is the driver for OpenCores tiny SPI master controller.
 241config SPI_OCTEON
 242        tristate "Cavium OCTEON SPI controller"
 243        depends on CPU_CAVIUM_OCTEON
 244        help
 245          SPI host driver for the hardware found on some Cavium OCTEON
 246          SOCs.
 248config SPI_OMAP_UWIRE
 249        tristate "OMAP1 MicroWire"
 250        depends on ARCH_OMAP1
 251        select SPI_BITBANG
 252        help
 253          This hooks up to the MicroWire controller on OMAP1 chips.
 255config SPI_OMAP24XX
 256        tristate "McSPI driver for OMAP"
 257        depends on ARCH_OMAP2PLUS
 258        help
 259          SPI master controller for OMAP24XX and later Multichannel SPI
 260          (McSPI) modules.
 262config SPI_OMAP_100K
 263        tristate "OMAP SPI 100K"
 264        depends on ARCH_OMAP850 || ARCH_OMAP730
 265        help
 266          OMAP SPI 100K master controller for omap7xx boards.
 268config SPI_ORION
 269        tristate "Orion SPI master (EXPERIMENTAL)"
 270        depends on PLAT_ORION && EXPERIMENTAL
 271        help
 272          This enables using the SPI master controller on the Orion chips.
 274config SPI_PL022
 275        tristate "ARM AMBA PL022 SSP controller"
 276        depends on ARM_AMBA
 277        default y if MACH_U300
 278        default y if ARCH_REALVIEW
 279        default y if INTEGRATOR_IMPD1
 280        default y if ARCH_VERSATILE
 281        help
 282          This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
 283          controller. If you have an embedded system with an AMBA(R)
 284          bus and a PL022 controller, say Y or M here.
 286config SPI_PPC4xx
 287        tristate "PPC4xx SPI Controller"
 288        depends on PPC32 && 4xx
 289        select SPI_BITBANG
 290        help
 291          This selects a driver for the PPC4xx SPI Controller.
 293config SPI_PXA2XX
 294        tristate "PXA2xx SSP SPI master"
 295        depends on (ARCH_PXA || (X86_32 && PCI)) && EXPERIMENTAL
 296        select PXA_SSP if ARCH_PXA
 297        help
 298          This enables using a PXA2xx or Sodaville SSP port as a SPI master
 299          controller. The driver can be configured to use any SSP port and
 300          additional documentation can be found a Documentation/spi/pxa2xx.
 302config SPI_PXA2XX_PCI
 303        def_bool SPI_PXA2XX && X86_32 && PCI
 305config SPI_RSPI
 306        tristate "Renesas RSPI controller"
 307        depends on SUPERH
 308        help
 309          SPI driver for Renesas RSPI blocks.
 311config SPI_S3C24XX
 312        tristate "Samsung S3C24XX series SPI"
 313        depends on ARCH_S3C24XX && EXPERIMENTAL
 314        select SPI_BITBANG
 315        help
 316          SPI driver for Samsung S3C24XX series ARM SoCs
 318config SPI_S3C24XX_FIQ
 319        bool "S3C24XX driver with FIQ pseudo-DMA"
 320        depends on SPI_S3C24XX
 321        select FIQ
 322        help
 323          Enable FIQ support for the S3C24XX SPI driver to provide pseudo
 324          DMA by using the fast-interrupt request framework, This allows
 325          the driver to get DMA-like performance when there are either
 326          no free DMA channels, or when doing transfers that required both
 327          TX and RX data paths.
 329config SPI_S3C64XX
 330        tristate "Samsung S3C64XX series type SPI"
 331        depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS)
 332        select S3C64XX_DMA if ARCH_S3C64XX
 333        help
 334          SPI driver for Samsung S3C64XX and newer SoCs.
 336config SPI_SC18IS602
 337        tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
 338        depends on I2C
 339        help
 340          SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
 342config SPI_SH_MSIOF
 343        tristate "SuperH MSIOF SPI controller"
 344        depends on SUPERH && HAVE_CLK
 345        select SPI_BITBANG
 346        help
 347          SPI driver for SuperH MSIOF blocks.
 349config SPI_SH
 350        tristate "SuperH SPI controller"
 351        depends on SUPERH
 352        help
 353          SPI driver for SuperH SPI blocks.
 355config SPI_SH_SCI
 356        tristate "SuperH SCI SPI controller"
 357        depends on SUPERH
 358        select SPI_BITBANG
 359        help
 360          SPI driver for SuperH SCI blocks.
 362config SPI_SH_HSPI
 363        tristate "SuperH HSPI controller"
 364        depends on ARCH_SHMOBILE
 365        help
 366          SPI driver for SuperH HSPI blocks.
 368config SPI_SIRF
 369        tristate "CSR SiRFprimaII SPI controller"
 370        depends on ARCH_PRIMA2
 371        select SPI_BITBANG
 372        help
 373          SPI driver for CSR SiRFprimaII SoCs
 375config SPI_STMP3XXX
 376        tristate "Freescale STMP37xx/378x SPI/SSP controller"
 377        depends on ARCH_STMP3XXX
 378        help
 379          SPI driver for Freescale STMP37xx/378x SoC SSP interface
 381config SPI_MXS
 382        tristate "Freescale MXS SPI controller"
 383        depends on ARCH_MXS
 384        select STMP_DEVICE
 385        help
 386          SPI driver for Freescale MXS devices.
 388config SPI_TI_SSP
 389        tristate "TI Sequencer Serial Port - SPI Support"
 390        depends on MFD_TI_SSP
 391        help
 392          This selects an SPI master implementation using a TI sequencer
 393          serial port.
 396        tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
 397        depends on PCI
 398        help
 399          SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
 400          used in some x86 embedded processors.
 402          This driver also supports the ML7213/ML7223/ML7831, a companion chip
 403          for the Atom E6xx series and compatible with the Intel EG20T PCH.
 405config SPI_TXX9
 406        tristate "Toshiba TXx9 SPI controller"
 407        depends on GENERIC_GPIO && CPU_TX49XX
 408        help
 409          SPI driver for Toshiba TXx9 MIPS SoCs
 411config SPI_XCOMM
 412        tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
 413        depends on I2C
 414        help
 415          Support for the SPI-I2C bridge found on the Analog Devices
 416          AD-FMCOMMS1-EBZ board.
 418config SPI_XILINX
 419        tristate "Xilinx SPI controller common module"
 420        depends on HAS_IOMEM && EXPERIMENTAL
 421        select SPI_BITBANG
 422        help
 423          This exposes the SPI controller IP from the Xilinx EDK.
 425          See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
 426          Product Specification document (DS464) for hardware details.
 428          Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 430config SPI_NUC900
 431        tristate "Nuvoton NUC900 series SPI"
 432        depends on ARCH_W90X900 && EXPERIMENTAL
 433        select SPI_BITBANG
 434        help
 435          SPI driver for Nuvoton NUC900 series ARM SoCs
 438# Add new SPI master controllers in alphabetical order above this line
 442        tristate "DesignWare SPI controller core support"
 443        help
 444          general driver for SPI controller core from DesignWare
 446config SPI_DW_PCI
 447        tristate "PCI interface driver for DW SPI core"
 448        depends on SPI_DESIGNWARE && PCI
 450config SPI_DW_MID_DMA
 451        bool "DMA support for DW SPI controller on Intel Moorestown platform"
 452        depends on SPI_DW_PCI && INTEL_MID_DMAC
 454config SPI_DW_MMIO
 455        tristate "Memory-mapped io interface driver for DW SPI core"
 456        depends on SPI_DESIGNWARE && HAVE_CLK
 459# There are lots of SPI device types, with sensors and memory
 460# being probably the most widely used ones.
 462comment "SPI Protocol Masters"
 464config SPI_SPIDEV
 465        tristate "User mode SPI device driver support"
 466        depends on EXPERIMENTAL
 467        help
 468          This supports user mode SPI protocol drivers.
 470          Note that this application programming interface is EXPERIMENTAL
 471          and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 473config SPI_TLE62X0
 474        tristate "Infineon TLE62X0 (for power switching)"
 475        depends on SYSFS
 476        help
 477          SPI driver for Infineon TLE62X0 series line driver chips,
 478          such as the TLE6220, TLE6230 and TLE6240.  This provides a
 479          sysfs interface, with each line presented as a kind of GPIO
 480          exposing both switch control and diagnostic feedback.
 483# Add new SPI protocol masters in alphabetical order above this line
 486endif # SPI_MASTER
 488# (slave support would go here)
 490endif # SPI
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