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# 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. 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 29if SPI 30 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. 37 38# 39# MASTER side ... talking to discrete SPI slave chips including microcontrollers 40# 41 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. 51 52if SPI_MASTER 53 54comment "SPI Master Controller Drivers" 55 56config SPI_ALTERA 57 tristate "Altera SPI Controller" 58 depends on GENERIC_HARDIRQS 59 select SPI_BITBANG 60 help 61 This is the driver for the Altera SPI Controller. 62 63config SPI_ATH79 64 tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver" 65 depends on ATH79 && GPIOLIB 66 select SPI_BITBANG 67 help 68 This enables support for the SPI controller present on the 69 Atheros AR71XX/AR724X/AR913X SoCs. 70 71config SPI_ATMEL 72 tristate "Atmel SPI Controller" 73 depends on (ARCH_AT91 || AVR32) 74 help 75 This selects a driver for the Atmel SPI Controller, present on 76 many AT32 (AVR32) and AT91 (ARM) chips. 77 78config SPI_BCM2835 79 tristate "BCM2835 SPI controller" 80 depends on ARCH_BCM2835 81 help 82 This selects a driver for the Broadcom BCM2835 SPI master. 83 84 The BCM2835 contains two types of SPI master controller; the 85 "universal SPI master", and the regular SPI controller. This driver 86 is for the regular SPI controller. Slave mode operation is not also 87 not supported. 88 89config SPI_BFIN5XX 90 tristate "SPI controller driver for ADI Blackfin5xx" 91 depends on BLACKFIN 92 help 93 This is the SPI controller master driver for Blackfin 5xx processor. 94 95config SPI_BFIN_SPORT 96 tristate "SPI bus via Blackfin SPORT" 97 depends on BLACKFIN 98 help 99 Enable support for a SPI bus via the Blackfin SPORT peripheral. 100 101config SPI_AU1550 102 tristate "Au1550/Au1200/Au1300 SPI Controller" 103 depends on MIPS_ALCHEMY 104 select SPI_BITBANG 105 help 106 If you say yes to this option, support will be included for the 107 PSC SPI controller found on Au1550, Au1200 and Au1300 series. 108 109config SPI_BCM63XX 110 tristate "Broadcom BCM63xx SPI controller" 111 depends on BCM63XX 112 help 113 Enable support for the SPI controller on the Broadcom BCM63xx SoCs. 114 115config SPI_BITBANG 116 tristate "Utilities for Bitbanging SPI masters" 117 help 118 With a few GPIO pins, your system can bitbang the SPI protocol. 119 Select this to get SPI support through I/O pins (GPIO, parallel 120 port, etc). Or, some systems' SPI master controller drivers use 121 this code to manage the per-word or per-transfer accesses to the 122 hardware shift registers. 123 124 This is library code, and is automatically selected by drivers that 125 need it. You only need to select this explicitly to support driver 126 modules that aren't part of this kernel tree. 127 128config SPI_BUTTERFLY 129 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" 130 depends on PARPORT 131 select SPI_BITBANG 132 help 133 This uses a custom parallel port cable to connect to an AVR 134 Butterfly <http://www.atmel.com/products/avr/butterfly>, an 135 inexpensive battery powered microcontroller evaluation board. 136 This same cable can be used to flash new firmware. 137 138config SPI_CLPS711X 139 tristate "CLPS711X host SPI controller" 140 depends on ARCH_CLPS711X 141 help 142 This enables dedicated general purpose SPI/Microwire1-compatible 143 master mode interface (SSI1) for CLPS711X-based CPUs. 144 145config SPI_COLDFIRE_QSPI 146 tristate "Freescale Coldfire QSPI controller" 147 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 148 help 149 This enables support for the Coldfire QSPI controller in master 150 mode. 151 152config SPI_DAVINCI 153 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 154 depends on ARCH_DAVINCI 155 select SPI_BITBANG 156 select TI_EDMA 157 help 158 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 159 160config SPI_EP93XX 161 tristate "Cirrus Logic EP93xx SPI controller" 162 depends on ARCH_EP93XX 163 help 164 This enables using the Cirrus EP93xx SPI controller in master 165 mode. 166 167config SPI_FALCON 168 tristate "Falcon SPI controller support" 169 depends on SOC_FALCON 170 help 171 The external bus unit (EBU) found on the FALC-ON SoC has SPI 172 emulation that is designed for serial flash access. This driver 173 has only been tested with m25p80 type chips. The hardware has no 174 support for other types of SPI peripherals. 175 176config SPI_GPIO 177 tristate "GPIO-based bitbanging SPI Master" 178 depends on GPIOLIB 179 select SPI_BITBANG 180 help 181 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 182 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 183 slaves connected to a bus using this driver are configured as usual, 184 except that the spi_board_info.controller_data holds the GPIO number 185 for the chipselect used by this controller driver. 186 187 Note that this driver often won't achieve even 1 Mbit/sec speeds, 188 making it unusually slow for SPI. If your platform can inline 189 GPIO operations, you should be able to leverage that for better 190 speed with a custom version of this driver; see the source code. 191 192config SPI_IMX 193 tristate "Freescale i.MX SPI controllers" 194 depends on ARCH_MXC 195 select SPI_BITBANG 196 default m if IMX_HAVE_PLATFORM_SPI_IMX 197 help 198 This enables using the Freescale i.MX SPI controllers in master 199 mode. 200 201config SPI_LM70_LLP 202 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 203 depends on PARPORT 204 select SPI_BITBANG 205 help 206 This driver supports the NS LM70 LLP Evaluation Board, 207 which interfaces to an LM70 temperature sensor using 208 a parallel port. 209 210config SPI_MPC52xx 211 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 212 depends on PPC_MPC52xx 213 help 214 This drivers supports the MPC52xx SPI controller in master SPI 215 mode. 216 217config SPI_MPC52xx_PSC 218 tristate "Freescale MPC52xx PSC SPI controller" 219 depends on PPC_MPC52xx 220 help 221 This enables using the Freescale MPC52xx Programmable Serial 222 Controller in master SPI mode. 223 224config SPI_MPC512x_PSC 225 tristate "Freescale MPC512x PSC SPI controller" 226 depends on PPC_MPC512x 227 help 228 This enables using the Freescale MPC5121 Programmable Serial 229 Controller in SPI master mode. 230 231config SPI_FSL_LIB 232 tristate 233 depends on OF 234 235config SPI_FSL_CPM 236 tristate 237 depends on FSL_SOC 238 239config SPI_FSL_SPI 240 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 241 depends on OF 242 select SPI_FSL_LIB 243 select SPI_FSL_CPM if FSL_SOC 244 help 245 This enables using the Freescale SPI controllers in master mode. 246 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 247 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 248 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 249 master mode. 250 251config SPI_FSL_ESPI 252 bool "Freescale eSPI controller" 253 depends on FSL_SOC 254 select SPI_FSL_LIB 255 help 256 This enables using the Freescale eSPI controllers in master mode. 257 From MPC8536, 85xx platform uses the controller, and all P10xx, 258 P20xx, P30xx,P40xx, P50xx uses this controller. 259 260config SPI_OC_TINY 261 tristate "OpenCores tiny SPI" 262 depends on GPIOLIB 263 select SPI_BITBANG 264 help 265 This is the driver for OpenCores tiny SPI master controller. 266 267config SPI_OCTEON 268 tristate "Cavium OCTEON SPI controller" 269 depends on CPU_CAVIUM_OCTEON 270 help 271 SPI host driver for the hardware found on some Cavium OCTEON 272 SOCs. 273 274config SPI_OMAP_UWIRE 275 tristate "OMAP1 MicroWire" 276 depends on ARCH_OMAP1 277 select SPI_BITBANG 278 help 279 This hooks up to the MicroWire controller on OMAP1 chips. 280 281config SPI_OMAP24XX 282 tristate "McSPI driver for OMAP" 283 depends on ARCH_OMAP2PLUS 284 help 285 SPI master controller for OMAP24XX and later Multichannel SPI 286 (McSPI) modules. 287 288config SPI_OMAP_100K 289 tristate "OMAP SPI 100K" 290 depends on ARCH_OMAP850 || ARCH_OMAP730 291 help 292 OMAP SPI 100K master controller for omap7xx boards. 293 294config SPI_ORION 295 tristate "Orion SPI master" 296 depends on PLAT_ORION 297 help 298 This enables using the SPI master controller on the Orion chips. 299 300config SPI_PL022 301 tristate "ARM AMBA PL022 SSP controller" 302 depends on ARM_AMBA 303 default y if MACH_U300 304 default y if ARCH_REALVIEW 305 default y if INTEGRATOR_IMPD1 306 default y if ARCH_VERSATILE 307 help 308 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 309 controller. If you have an embedded system with an AMBA(R) 310 bus and a PL022 controller, say Y or M here. 311 312config SPI_PPC4xx 313 tristate "PPC4xx SPI Controller" 314 depends on PPC32 && 4xx 315 select SPI_BITBANG 316 help 317 This selects a driver for the PPC4xx SPI Controller. 318 319config SPI_PXA2XX_PXADMA 320 bool "PXA2xx SSP legacy PXA DMA API support" 321 depends on SPI_PXA2XX && ARCH_PXA 322 help 323 Enable PXA private legacy DMA API support. Note that this is 324 deprecated in favor of generic DMA engine API. 325 326config SPI_PXA2XX_DMA 327 def_bool y 328 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA 329 330config SPI_PXA2XX 331 tristate "PXA2xx SSP SPI master" 332 depends on (ARCH_PXA || PCI || ACPI) && GENERIC_HARDIRQS 333 select PXA_SSP if ARCH_PXA 334 help 335 This enables using a PXA2xx or Sodaville SSP port as a SPI master 336 controller. The driver can be configured to use any SSP port and 337 additional documentation can be found a Documentation/spi/pxa2xx. 338 339config SPI_PXA2XX_PCI 340 def_tristate SPI_PXA2XX && PCI 341 342config SPI_RSPI 343 tristate "Renesas RSPI controller" 344 depends on SUPERH 345 help 346 SPI driver for Renesas RSPI blocks. 347 348config SPI_S3C24XX 349 tristate "Samsung S3C24XX series SPI" 350 depends on ARCH_S3C24XX 351 select SPI_BITBANG 352 help 353 SPI driver for Samsung S3C24XX series ARM SoCs 354 355config SPI_S3C24XX_FIQ 356 bool "S3C24XX driver with FIQ pseudo-DMA" 357 depends on SPI_S3C24XX 358 select FIQ 359 help 360 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 361 DMA by using the fast-interrupt request framework, This allows 362 the driver to get DMA-like performance when there are either 363 no free DMA channels, or when doing transfers that required both 364 TX and RX data paths. 365 366config SPI_S3C64XX 367 tristate "Samsung S3C64XX series type SPI" 368 depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS) 369 select S3C64XX_DMA if ARCH_S3C64XX 370 help 371 SPI driver for Samsung S3C64XX and newer SoCs. 372 373config SPI_SC18IS602 374 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 375 depends on I2C 376 help 377 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 378 379config SPI_SH_MSIOF 380 tristate "SuperH MSIOF SPI controller" 381 depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK 382 select SPI_BITBANG 383 help 384 SPI driver for SuperH and SH Mobile MSIOF blocks. 385 386config SPI_SH 387 tristate "SuperH SPI controller" 388 depends on SUPERH 389 help 390 SPI driver for SuperH SPI blocks. 391 392config SPI_SH_SCI 393 tristate "SuperH SCI SPI controller" 394 depends on SUPERH 395 select SPI_BITBANG 396 help 397 SPI driver for SuperH SCI blocks. 398 399config SPI_SH_HSPI 400 tristate "SuperH HSPI controller" 401 depends on ARCH_SHMOBILE 402 help 403 SPI driver for SuperH HSPI blocks. 404 405config SPI_SIRF 406 tristate "CSR SiRFprimaII SPI controller" 407 depends on ARCH_PRIMA2 408 select SPI_BITBANG 409 help 410 SPI driver for CSR SiRFprimaII SoCs 411 412config SPI_MXS 413 tristate "Freescale MXS SPI controller" 414 depends on ARCH_MXS 415 select STMP_DEVICE 416 help 417 SPI driver for Freescale MXS devices. 418 419config SPI_TEGRA114 420 tristate "NVIDIA Tegra114 SPI Controller" 421 depends on ARCH_TEGRA && TEGRA20_APB_DMA 422 help 423 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller 424 is different than the older SoCs SPI controller and also register interface 425 get changed with this controller. 426 427config SPI_TEGRA20_SFLASH 428 tristate "Nvidia Tegra20 Serial flash Controller" 429 depends on ARCH_TEGRA 430 help 431 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 432 The main usecase of this controller is to use spi flash as boot 433 device. 434 435config SPI_TEGRA20_SLINK 436 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 437 depends on ARCH_TEGRA && TEGRA20_APB_DMA 438 help 439 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 440 441config SPI_TI_SSP 442 tristate "TI Sequencer Serial Port - SPI Support" 443 depends on MFD_TI_SSP 444 help 445 This selects an SPI master implementation using a TI sequencer 446 serial port. 447 448config SPI_TOPCLIFF_PCH 449 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 450 depends on PCI 451 help 452 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 453 used in some x86 embedded processors. 454 455 This driver also supports the ML7213/ML7223/ML7831, a companion chip 456 for the Atom E6xx series and compatible with the Intel EG20T PCH. 457 458config SPI_TXX9 459 tristate "Toshiba TXx9 SPI controller" 460 depends on GPIOLIB && CPU_TX49XX 461 help 462 SPI driver for Toshiba TXx9 MIPS SoCs 463 464config SPI_XCOMM 465 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 466 depends on I2C 467 help 468 Support for the SPI-I2C bridge found on the Analog Devices 469 AD-FMCOMMS1-EBZ board. 470 471config SPI_XILINX 472 tristate "Xilinx SPI controller common module" 473 depends on HAS_IOMEM 474 select SPI_BITBANG 475 help 476 This exposes the SPI controller IP from the Xilinx EDK. 477 478 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 479 Product Specification document (DS464) for hardware details. 480 481 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 482 483config SPI_NUC900 484 tristate "Nuvoton NUC900 series SPI" 485 depends on ARCH_W90X900 486 select SPI_BITBANG 487 help 488 SPI driver for Nuvoton NUC900 series ARM SoCs 489 490# 491# Add new SPI master controllers in alphabetical order above this line 492# 493 494config SPI_DESIGNWARE 495 tristate "DesignWare SPI controller core support" 496 help 497 general driver for SPI controller core from DesignWare 498 499config SPI_DW_PCI 500 tristate "PCI interface driver for DW SPI core" 501 depends on SPI_DESIGNWARE && PCI 502 503config SPI_DW_MID_DMA 504 bool "DMA support for DW SPI controller on Intel Moorestown platform" 505 depends on SPI_DW_PCI && INTEL_MID_DMAC 506 507config SPI_DW_MMIO 508 tristate "Memory-mapped io interface driver for DW SPI core" 509 depends on SPI_DESIGNWARE && HAVE_CLK 510 511# 512# There are lots of SPI device types, with sensors and memory 513# being probably the most widely used ones. 514# 515comment "SPI Protocol Masters" 516 517config SPI_SPIDEV 518 tristate "User mode SPI device driver support" 519 help 520 This supports user mode SPI protocol drivers. 521 522 Note that this application programming interface is EXPERIMENTAL 523 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 524 525config SPI_TLE62X0 526 tristate "Infineon TLE62X0 (for power switching)" 527 depends on SYSFS 528 help 529 SPI driver for Infineon TLE62X0 series line driver chips, 530 such as the TLE6220, TLE6230 and TLE6240. This provides a 531 sysfs interface, with each line presented as a kind of GPIO 532 exposing both switch control and diagnostic feedback. 533 534# 535# Add new SPI protocol masters in alphabetical order above this line 536# 537 538endif # SPI_MASTER 539 540# (slave support would go here) 541 542endif # SPI 543