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/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.
  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
 178         help
 179           This drivers supports the MPC52xx SPI controller in master SPI
 180           mode.
 181
 182 config SPI_MPC52xx_PSC
 183         tristate "Freescale MPC52xx PSC SPI controller"
 184         depends on PPC_MPC52xx && EXPERIMENTAL
 185         help
 186           This enables using the Freescale MPC52xx Programmable Serial
 187           Controller in master SPI mode.
 188
 189 config SPI_MPC512x_PSC
 190         tristate "Freescale MPC512x PSC SPI controller"
 191         depends on SPI_MASTER && PPC_MPC512x
 192         help
 193           This enables using the Freescale MPC5121 Programmable Serial
 194           Controller in SPI master mode.
 195
 196 config SPI_FSL_LIB
 197         tristate
 198         depends on FSL_SOC
 199
 200 config SPI_FSL_SPI
 201         bool "Freescale SPI controller"
 202         depends on FSL_SOC
 203         select SPI_FSL_LIB
 204         help
 205           This enables using the Freescale SPI controllers in master mode.
 206           MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
 207           MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
 208
 209 config SPI_FSL_ESPI
 210         bool "Freescale eSPI controller"
 211         depends on FSL_SOC
 212         select SPI_FSL_LIB
 213         help
 214           This enables using the Freescale eSPI controllers in master mode.
 215           From MPC8536, 85xx platform uses the controller, and all P10xx,
 216           P20xx, P30xx,P40xx, P50xx uses this controller.
 217
 218 config SPI_OC_TINY
 219         tristate "OpenCores tiny SPI"
 220         depends on GENERIC_GPIO
 221         select SPI_BITBANG
 222         help
 223           This is the driver for OpenCores tiny SPI master controller.
 224
 225 config SPI_OMAP_UWIRE
 226         tristate "OMAP1 MicroWire"
 227         depends on ARCH_OMAP1
 228         select SPI_BITBANG
 229         help
 230           This hooks up to the MicroWire controller on OMAP1 chips.
 231
 232 config SPI_OMAP24XX
 233         tristate "McSPI driver for OMAP"
 234         depends on ARCH_OMAP2PLUS
 235         help
 236           SPI master controller for OMAP24XX and later Multichannel SPI
 237           (McSPI) modules.
 238
 239 config SPI_OMAP_100K
 240         tristate "OMAP SPI 100K"
 241         depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
 242         help
 243           OMAP SPI 100K master controller for omap7xx boards.
 244
 245 config SPI_ORION
 246         tristate "Orion SPI master (EXPERIMENTAL)"
 247         depends on PLAT_ORION && EXPERIMENTAL
 248         help
 249           This enables using the SPI master controller on the Orion chips.
 250
 251 config SPI_PL022
 252         tristate "ARM AMBA PL022 SSP controller"
 253         depends on ARM_AMBA
 254         default y if MACH_U300
 255         default y if ARCH_REALVIEW
 256         default y if INTEGRATOR_IMPD1
 257         default y if ARCH_VERSATILE
 258         help
 259           This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
 260           controller. If you have an embedded system with an AMBA(R)
 261           bus and a PL022 controller, say Y or M here.
 262
 263 config SPI_PPC4xx
 264         tristate "PPC4xx SPI Controller"
 265         depends on PPC32 && 4xx && SPI_MASTER
 266         select SPI_BITBANG
 267         help
 268           This selects a driver for the PPC4xx SPI Controller.
 269
 270 config SPI_PXA2XX
 271         tristate "PXA2xx SSP SPI master"
 272         depends on (ARCH_PXA || (X86_32 && PCI)) && EXPERIMENTAL
 273         select PXA_SSP if ARCH_PXA
 274         help
 275           This enables using a PXA2xx or Sodaville SSP port as a SPI master
 276           controller. The driver can be configured to use any SSP port and
 277           additional documentation can be found a Documentation/spi/pxa2xx.
 278
 279 config SPI_PXA2XX_PCI
 280         def_bool SPI_PXA2XX && X86_32 && PCI
 281
 282 config SPI_S3C24XX
 283         tristate "Samsung S3C24XX series SPI"
 284         depends on ARCH_S3C2410 && EXPERIMENTAL
 285         select SPI_BITBANG
 286         help
 287           SPI driver for Samsung S3C24XX series ARM SoCs
 288
 289 config SPI_S3C24XX_FIQ
 290         bool "S3C24XX driver with FIQ pseudo-DMA"
 291         depends on SPI_S3C24XX
 292         select FIQ
 293         help
 294           Enable FIQ support for the S3C24XX SPI driver to provide pseudo
 295           DMA by using the fast-interrupt request framework, This allows
 296           the driver to get DMA-like performance when there are either
 297           no free DMA channels, or when doing transfers that required both
 298           TX and RX data paths.
 299
 300 config SPI_S3C64XX
 301         tristate "Samsung S3C64XX series type SPI"
 302         depends on (ARCH_S3C64XX || ARCH_S5P64X0)
 303         select S3C64XX_DMA if ARCH_S3C64XX
 304         help
 305           SPI driver for Samsung S3C64XX and newer SoCs.
 306
 307 config SPI_SH_MSIOF
 308         tristate "SuperH MSIOF SPI controller"
 309         depends on SUPERH && HAVE_CLK
 310         select SPI_BITBANG
 311         help
 312           SPI driver for SuperH MSIOF blocks.
 313
 314 config SPI_SH
 315         tristate "SuperH SPI controller"
 316         depends on SUPERH
 317         help
 318           SPI driver for SuperH SPI blocks.
 319
 320 config SPI_SH_SCI
 321         tristate "SuperH SCI SPI controller"
 322         depends on SUPERH
 323         select SPI_BITBANG
 324         help
 325           SPI driver for SuperH SCI blocks.
 326
 327 config SPI_STMP3XXX
 328         tristate "Freescale STMP37xx/378x SPI/SSP controller"
 329         depends on ARCH_STMP3XXX && SPI_MASTER
 330         help
 331           SPI driver for Freescale STMP37xx/378x SoC SSP interface
 332
 333 config SPI_TEGRA
 334         tristate "Nvidia Tegra SPI controller"
 335         depends on ARCH_TEGRA && TEGRA_SYSTEM_DMA
 336         help
 337           SPI driver for NVidia Tegra SoCs
 338
 339 config SPI_TI_SSP
 340         tristate "TI Sequencer Serial Port - SPI Support"
 341         depends on MFD_TI_SSP
 342         help
 343           This selects an SPI master implementation using a TI sequencer
 344           serial port.
 345
 346 config SPI_TOPCLIFF_PCH
 347         tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
 348         depends on PCI
 349         help
 350           SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
 351           used in some x86 embedded processors.
 352
 353           This driver also supports the ML7213/ML7223/ML7831, a companion chip
 354           for the Atom E6xx series and compatible with the Intel EG20T PCH.
 355
 356 config SPI_TXX9
 357         tristate "Toshiba TXx9 SPI controller"
 358         depends on GENERIC_GPIO && CPU_TX49XX
 359         help
 360           SPI driver for Toshiba TXx9 MIPS SoCs
 361
 362 config SPI_XILINX
 363         tristate "Xilinx SPI controller common module"
 364         depends on HAS_IOMEM && EXPERIMENTAL
 365         select SPI_BITBANG
 366         help
 367           This exposes the SPI controller IP from the Xilinx EDK.
 368
 369           See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
 370           Product Specification document (DS464) for hardware details.
 371
 372           Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 373
 374 config SPI_NUC900
 375         tristate "Nuvoton NUC900 series SPI"
 376         depends on ARCH_W90X900 && EXPERIMENTAL
 377         select SPI_BITBANG
 378         help
 379           SPI driver for Nuvoton NUC900 series ARM SoCs
 380
 381 #
 382 # Add new SPI master controllers in alphabetical order above this line
 383 #
 384
 385 config SPI_DESIGNWARE
 386         tristate "DesignWare SPI controller core support"
 387         depends on SPI_MASTER
 388         help
 389           general driver for SPI controller core from DesignWare
 390
 391 config SPI_DW_PCI
 392         tristate "PCI interface driver for DW SPI core"
 393         depends on SPI_DESIGNWARE && PCI
 394
 395 config SPI_DW_MID_DMA
 396         bool "DMA support for DW SPI controller on Intel Moorestown platform"
 397         depends on SPI_DW_PCI && INTEL_MID_DMAC
 398
 399 config SPI_DW_MMIO
 400         tristate "Memory-mapped io interface driver for DW SPI core"
 401         depends on SPI_DESIGNWARE && HAVE_CLK
 402
 403 #
 404 # There are lots of SPI device types, with sensors and memory
 405 # being probably the most widely used ones.
 406 #
 407 comment "SPI Protocol Masters"
 408
 409 config SPI_SPIDEV
 410         tristate "User mode SPI device driver support"
 411         depends on EXPERIMENTAL
 412         help
 413           This supports user mode SPI protocol drivers.
 414
 415           Note that this application programming interface is EXPERIMENTAL
 416           and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 417
 418 config SPI_TLE62X0
 419         tristate "Infineon TLE62X0 (for power switching)"
 420         depends on SYSFS
 421         help
 422           SPI driver for Infineon TLE62X0 series line driver chips,
 423           such as the TLE6220, TLE6230 and TLE6240.  This provides a
 424           sysfs interface, with each line presented as a kind of GPIO
 425           exposing both switch control and diagnostic feedback.
 426
 427 #
 428 # Add new SPI protocol masters in alphabetical order above this line
 429 #
 430
 431 endif # SPI_MASTER
 432
 433 # (slave support would go here)
 434
 435 endif # SPI