drivers/spi/Kconfig

   1 #
   2 # SPI driver configuration
   3 #
   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.
   7 #
   8 menuconfig 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.
  17
  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.
  23
  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.
  28
  29 if SPI
  30
  31 config 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.
  37
  38 #
  39 # MASTER side ... talking to discrete SPI slave chips including microcontrollers
  40 #
  41
  42 config 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.
  51
  52 if SPI_MASTER
  53
  54 comment "SPI Master Controller Drivers"
  55
  56 config SPI_ALTERA
  57         tristate "Altera SPI Controller"
  58         select SPI_BITBANG
  59         help
  60           This is the driver for the Altera SPI Controller.
  61
  62 config 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.
  69
  70 config 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.
  76
  77 config SPI_BFIN
  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.
  82
  83 config 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.
  88
  89 config SPI_AU1550
  90         tristate "Au1550/Au12x0 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           Au1550 SPI controller (may also work with Au1200,Au1210,Au1250).
  96
  97 config SPI_BITBANG
  98         tristate "Utilities for Bitbanging SPI masters"
  99         help
 100           With a few GPIO pins, your system can bitbang the SPI protocol.
 101           Select this to get SPI support through I/O pins (GPIO, parallel
 102           port, etc).  Or, some systems' SPI master controller drivers use
 103           this code to manage the per-word or per-transfer accesses to the
 104           hardware shift registers.
 105
 106           This is library code, and is automatically selected by drivers that
 107           need it.  You only need to select this explicitly to support driver
 108           modules that aren't part of this kernel tree.
 109
 110 config SPI_BUTTERFLY
 111         tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
 112         depends on PARPORT
 113         select SPI_BITBANG
 114         help
 115           This uses a custom parallel port cable to connect to an AVR
 116           Butterfly <http://www.atmel.com/products/avr/butterfly>, an
 117           inexpensive battery powered microcontroller evaluation board.
 118           This same cable can be used to flash new firmware.
 119
 120 config SPI_COLDFIRE_QSPI
 121         tristate "Freescale Coldfire QSPI controller"
 122         depends on (M520x || M523x || M5249 || M527x || M528x || M532x)
 123         help
 124           This enables support for the Coldfire QSPI controller in master
 125           mode.
 126
 127 config SPI_DAVINCI
 128         tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
 129         depends on SPI_MASTER && ARCH_DAVINCI
 130         select SPI_BITBANG
 131         help
 132           SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
 133
 134 config SPI_EP93XX
 135         tristate "Cirrus Logic EP93xx SPI controller"
 136         depends on ARCH_EP93XX
 137         help
 138           This enables using the Cirrus EP93xx SPI controller in master
 139           mode.
 140
 141 config SPI_GPIO
 142         tristate "GPIO-based bitbanging SPI Master"
 143         depends on GENERIC_GPIO
 144         select SPI_BITBANG
 145         help
 146           This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
 147           interface to manage MOSI, MISO, SCK, and chipselect signals.  SPI
 148           slaves connected to a bus using this driver are configured as usual,
 149           except that the spi_board_info.controller_data holds the GPIO number
 150           for the chipselect used by this controller driver.
 151
 152           Note that this driver often won't achieve even 1 Mbit/sec speeds,
 153           making it unusually slow for SPI.  If your platform can inline
 154           GPIO operations, you should be able to leverage that for better
 155           speed with a custom version of this driver; see the source code.
 156
 157 config SPI_IMX
 158         tristate "Freescale i.MX SPI controllers"
 159         depends on ARCH_MXC
 160         select SPI_BITBANG
 161         default m if IMX_HAVE_PLATFORM_SPI_IMX
 162         help
 163           This enables using the Freescale i.MX SPI controllers in master
 164           mode.
 165
 166 config SPI_LM70_LLP
 167         tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
 168         depends on PARPORT && EXPERIMENTAL
 169         select SPI_BITBANG
 170         help
 171           This driver supports the NS LM70 LLP Evaluation Board,
 172           which interfaces to an LM70 temperature sensor using
 173           a parallel port.
 174
 175 config SPI_MPC52xx
 176         tristate "Freescale MPC52xx SPI (non-PSC) controller support"
 177         depends on PPC_MPC52xx && SPI
 178         select SPI_MASTER_OF
 179         help
 180           This drivers supports the MPC52xx SPI controller in master SPI
 181           mode.
 182
 183 config SPI_MPC52xx_PSC
 184         tristate "Freescale MPC52xx PSC SPI controller"
 185         depends on PPC_MPC52xx && EXPERIMENTAL
 186         help
 187           This enables using the Freescale MPC52xx Programmable Serial
 188           Controller in master SPI mode.
 189
 190 config SPI_MPC512x_PSC
 191         tristate "Freescale MPC512x PSC SPI controller"
 192         depends on SPI_MASTER && PPC_MPC512x
 193         help
 194           This enables using the Freescale MPC5121 Programmable Serial
 195           Controller in SPI master mode.
 196
 197 config SPI_FSL_LIB
 198         tristate
 199         depends on FSL_SOC
 200
 201 config SPI_FSL_SPI
 202         tristate "Freescale SPI controller"
 203         depends on FSL_SOC
 204         select SPI_FSL_LIB
 205         help
 206           This enables using the Freescale SPI controllers in master mode.
 207           MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
 208           MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
 209
 210 config SPI_FSL_ESPI
 211         tristate "Freescale eSPI controller"
 212         depends on FSL_SOC
 213         select SPI_FSL_LIB
 214         help
 215           This enables using the Freescale eSPI controllers in master mode.
 216           From MPC8536, 85xx platform uses the controller, and all P10xx,
 217           P20xx, P30xx,P40xx, P50xx uses this controller.
 218
 219 config SPI_OC_TINY
 220         tristate "OpenCores tiny SPI"
 221         depends on GENERIC_GPIO
 222         select SPI_BITBANG
 223         help
 224           This is the driver for OpenCores tiny SPI master controller.
 225
 226 config SPI_OMAP_UWIRE
 227         tristate "OMAP1 MicroWire"
 228         depends on ARCH_OMAP1
 229         select SPI_BITBANG
 230         help
 231           This hooks up to the MicroWire controller on OMAP1 chips.
 232
 233 config SPI_OMAP24XX
 234         tristate "McSPI driver for OMAP"
 235         depends on ARCH_OMAP2PLUS
 236         help
 237           SPI master controller for OMAP24XX and later Multichannel SPI
 238           (McSPI) modules.
 239
 240 config SPI_OMAP_100K
 241         tristate "OMAP SPI 100K"
 242         depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
 243         help
 244           OMAP SPI 100K master controller for omap7xx boards.
 245
 246 config SPI_ORION
 247         tristate "Orion SPI master (EXPERIMENTAL)"
 248         depends on PLAT_ORION && EXPERIMENTAL
 249         help
 250           This enables using the SPI master controller on the Orion chips.
 251
 252 config SPI_PL022
 253         tristate "ARM AMBA PL022 SSP controller"
 254         depends on ARM_AMBA
 255         default y if MACH_U300
 256         default y if ARCH_REALVIEW
 257         default y if INTEGRATOR_IMPD1
 258         default y if ARCH_VERSATILE
 259         help
 260           This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
 261           controller. If you have an embedded system with an AMBA(R)
 262           bus and a PL022 controller, say Y or M here.
 263
 264 config SPI_PPC4xx
 265         tristate "PPC4xx SPI Controller"
 266         depends on PPC32 && 4xx && SPI_MASTER
 267         select SPI_BITBANG
 268         help
 269           This selects a driver for the PPC4xx SPI Controller.
 270
 271 config SPI_PXA2XX
 272         tristate "PXA2xx SSP SPI master"
 273         depends on (ARCH_PXA || (X86_32 && PCI)) && EXPERIMENTAL
 274         select PXA_SSP if ARCH_PXA
 275         help
 276           This enables using a PXA2xx or Sodaville SSP port as a SPI master
 277           controller. The driver can be configured to use any SSP port and
 278           additional documentation can be found a Documentation/spi/pxa2xx.
 279
 280 config SPI_PXA2XX_PCI
 281         def_bool SPI_PXA2XX && X86_32 && PCI
 282
 283 config SPI_S3C24XX
 284         tristate "Samsung S3C24XX series SPI"
 285         depends on ARCH_S3C2410 && EXPERIMENTAL
 286         select SPI_BITBANG
 287         help
 288           SPI driver for Samsung S3C24XX series ARM SoCs
 289
 290 config SPI_S3C24XX_FIQ
 291         bool "S3C24XX driver with FIQ pseudo-DMA"
 292         depends on SPI_S3C24XX
 293         select FIQ
 294         help
 295           Enable FIQ support for the S3C24XX SPI driver to provide pseudo
 296           DMA by using the fast-interrupt request framework, This allows
 297           the driver to get DMA-like performance when there are either
 298           no free DMA channels, or when doing transfers that required both
 299           TX and RX data paths.
 300
 301 config SPI_S3C64XX
 302         tristate "Samsung S3C64XX series type SPI"
 303         depends on (ARCH_S3C64XX || ARCH_S5P64X0)
 304         select S3C64XX_DMA if ARCH_S3C64XX
 305         help
 306           SPI driver for Samsung S3C64XX and newer SoCs.
 307
 308 config SPI_SH_MSIOF
 309         tristate "SuperH MSIOF SPI controller"
 310         depends on SUPERH && HAVE_CLK
 311         select SPI_BITBANG
 312         help
 313           SPI driver for SuperH MSIOF blocks.
 314
 315 config SPI_SH
 316         tristate "SuperH SPI controller"
 317         depends on SUPERH
 318         help
 319           SPI driver for SuperH SPI blocks.
 320
 321 config SPI_SH_SCI
 322         tristate "SuperH SCI SPI controller"
 323         depends on SUPERH
 324         select SPI_BITBANG
 325         help
 326           SPI driver for SuperH SCI blocks.
 327
 328 config SPI_STMP3XXX
 329         tristate "Freescale STMP37xx/378x SPI/SSP controller"
 330         depends on ARCH_STMP3XXX && SPI_MASTER
 331         help
 332           SPI driver for Freescale STMP37xx/378x SoC SSP interface
 333
 334 config SPI_TEGRA
 335         tristate "Nvidia Tegra SPI controller"
 336         depends on ARCH_TEGRA
 337         select TEGRA_SYSTEM_DMA
 338         help
 339           SPI driver for NVidia Tegra SoCs
 340
 341 config SPI_TI_SSP
 342         tristate "TI Sequencer Serial Port - SPI Support"
 343         depends on MFD_TI_SSP
 344         help
 345           This selects an SPI master implementation using a TI sequencer
 346           serial port.
 347
 348 config SPI_TOPCLIFF_PCH
 349         tristate "Intel EG20T PCH/OKI SEMICONDUCTOR ML7213 IOH SPI controller"
 350         depends on PCI
 351         help
 352           SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
 353           used in some x86 embedded processors.
 354
 355           This driver also supports the ML7213, a companion chip for the
 356           Atom E6xx series and compatible with the Intel EG20T PCH.
 357
 358 config SPI_TXX9
 359         tristate "Toshiba TXx9 SPI controller"
 360         depends on GENERIC_GPIO && CPU_TX49XX
 361         help
 362           SPI driver for Toshiba TXx9 MIPS SoCs
 363
 364 config SPI_XILINX
 365         tristate "Xilinx SPI controller common module"
 366         depends on HAS_IOMEM && EXPERIMENTAL
 367         select SPI_BITBANG
 368         help
 369           This exposes the SPI controller IP from the Xilinx EDK.
 370
 371           See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
 372           Product Specification document (DS464) for hardware details.
 373
 374           Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 375
 376 config SPI_NUC900
 377         tristate "Nuvoton NUC900 series SPI"
 378         depends on ARCH_W90X900 && EXPERIMENTAL
 379         select SPI_BITBANG
 380         help
 381           SPI driver for Nuvoton NUC900 series ARM SoCs
 382
 383 #
 384 # Add new SPI master controllers in alphabetical order above this line
 385 #
 386
 387 config SPI_DESIGNWARE
 388         tristate "DesignWare SPI controller core support"
 389         depends on SPI_MASTER
 390         help
 391           general driver for SPI controller core from DesignWare
 392
 393 config SPI_DW_PCI
 394         tristate "PCI interface driver for DW SPI core"
 395         depends on SPI_DESIGNWARE && PCI
 396
 397 config SPI_DW_MID_DMA
 398         bool "DMA support for DW SPI controller on Intel Moorestown platform"
 399         depends on SPI_DW_PCI && INTEL_MID_DMAC
 400
 401 config SPI_DW_MMIO
 402         tristate "Memory-mapped io interface driver for DW SPI core"
 403         depends on SPI_DESIGNWARE && HAVE_CLK
 404
 405 #
 406 # There are lots of SPI device types, with sensors and memory
 407 # being probably the most widely used ones.
 408 #
 409 comment "SPI Protocol Masters"
 410
 411 config SPI_SPIDEV
 412         tristate "User mode SPI device driver support"
 413         depends on EXPERIMENTAL
 414         help
 415           This supports user mode SPI protocol drivers.
 416
 417           Note that this application programming interface is EXPERIMENTAL
 418           and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 419
 420 config SPI_TLE62X0
 421         tristate "Infineon TLE62X0 (for power switching)"
 422         depends on SYSFS
 423         help
 424           SPI driver for Infineon TLE62X0 series line driver chips,
 425           such as the TLE6220, TLE6230 and TLE6240.  This provides a
 426           sysfs interface, with each line presented as a kind of GPIO
 427           exposing both switch control and diagnostic feedback.
 428
 429 #
 430 # Add new SPI protocol masters in alphabetical order above this line
 431 #
 432
 433 endif # SPI_MASTER
 434
 435 # (slave support would go here)
 436
 437 endif # SPI