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 select SPI_BITBANG 59 help 60 This is the driver for the Altera SPI Controller. 61 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. 69 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. 76 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. 82 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. 87 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. 93 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. 100 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. 106 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. 114 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. 120 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. 129 130 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. 133 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 <http://www.atmel.com/products/avr/butterfly>, an 141 inexpensive battery powered microcontroller evaluation board. 142 This same cable can be used to flash new firmware. 143 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. 150 151config SPI_COLDFIRE_QSPI 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. 157 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. 165 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. 172 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. 179 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. 188 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. 199 200 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. 204 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. 213 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. 222 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. 229 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. 236 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. 243 244config SPI_FSL_LIB 245 tristate 246 depends on OF 247 248config SPI_FSL_CPM 249 tristate 250 depends on FSL_SOC 251 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. 263 264config SPI_FSL_DSPI 265 tristate "Freescale DSPI controller" 266 select SPI_BITBANG 267 depends on SOC_VF610 || COMPILE_TEST 268 help 269 This enables support for the Freescale DSPI controller in master 270 mode. VF610 platform uses the controller. 271 272config SPI_FSL_ESPI 273 bool "Freescale eSPI controller" 274 depends on FSL_SOC 275 select SPI_FSL_LIB 276 help 277 This enables using the Freescale eSPI controllers in master mode. 278 From MPC8536, 85xx platform uses the controller, and all P10xx, 279 P20xx, P30xx,P40xx, P50xx uses this controller. 280 281config SPI_OC_TINY 282 tristate "OpenCores tiny SPI" 283 depends on GPIOLIB 284 select SPI_BITBANG 285 help 286 This is the driver for OpenCores tiny SPI master controller. 287 288config SPI_OCTEON 289 tristate "Cavium OCTEON SPI controller" 290 depends on CAVIUM_OCTEON_SOC 291 help 292 SPI host driver for the hardware found on some Cavium OCTEON 293 SOCs. 294 295config SPI_OMAP_UWIRE 296 tristate "OMAP1 MicroWire" 297 depends on ARCH_OMAP1 298 select SPI_BITBANG 299 help 300 This hooks up to the MicroWire controller on OMAP1 chips. 301 302config SPI_OMAP24XX 303 tristate "McSPI driver for OMAP" 304 depends on ARCH_OMAP2PLUS || COMPILE_TEST 305 help 306 SPI master controller for OMAP24XX and later Multichannel SPI 307 (McSPI) modules. 308 309config SPI_TI_QSPI 310 tristate "DRA7xxx QSPI controller support" 311 depends on ARCH_OMAP2PLUS || COMPILE_TEST 312 help 313 QSPI master controller for DRA7xxx used for flash devices. 314 This device supports single, dual and quad read support, while 315 it only supports single write mode. 316 317config SPI_OMAP_100K 318 tristate "OMAP SPI 100K" 319 depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST 320 help 321 OMAP SPI 100K master controller for omap7xx boards. 322 323config SPI_ORION 324 tristate "Orion SPI master" 325 depends on PLAT_ORION || COMPILE_TEST 326 help 327 This enables using the SPI master controller on the Orion chips. 328 329config SPI_PL022 330 tristate "ARM AMBA PL022 SSP controller" 331 depends on ARM_AMBA 332 default y if MACH_U300 333 default y if ARCH_REALVIEW 334 default y if INTEGRATOR_IMPD1 335 default y if ARCH_VERSATILE 336 help 337 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 338 controller. If you have an embedded system with an AMBA(R) 339 bus and a PL022 controller, say Y or M here. 340 341config SPI_PPC4xx 342 tristate "PPC4xx SPI Controller" 343 depends on PPC32 && 4xx 344 select SPI_BITBANG 345 help 346 This selects a driver for the PPC4xx SPI Controller. 347 348config SPI_PXA2XX_PXADMA 349 bool "PXA2xx SSP legacy PXA DMA API support" 350 depends on SPI_PXA2XX && ARCH_PXA 351 help 352 Enable PXA private legacy DMA API support. Note that this is 353 deprecated in favor of generic DMA engine API. 354 355config SPI_PXA2XX_DMA 356 def_bool y 357 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA 358 359config SPI_PXA2XX 360 tristate "PXA2xx SSP SPI master" 361 depends on (ARCH_PXA || PCI || ACPI) 362 select PXA_SSP if ARCH_PXA 363 help 364 This enables using a PXA2xx or Sodaville SSP port as a SPI master 365 controller. The driver can be configured to use any SSP port and 366 additional documentation can be found a Documentation/spi/pxa2xx. 367 368config SPI_PXA2XX_PCI 369 def_tristate SPI_PXA2XX && PCI 370 371config SPI_RSPI 372 tristate "Renesas RSPI controller" 373 depends on (SUPERH || ARCH_SHMOBILE) && SH_DMAE_BASE 374 help 375 SPI driver for Renesas RSPI blocks. 376 377config SPI_S3C24XX 378 tristate "Samsung S3C24XX series SPI" 379 depends on ARCH_S3C24XX 380 select SPI_BITBANG 381 help 382 SPI driver for Samsung S3C24XX series ARM SoCs 383 384config SPI_S3C24XX_FIQ 385 bool "S3C24XX driver with FIQ pseudo-DMA" 386 depends on SPI_S3C24XX 387 select FIQ 388 help 389 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 390 DMA by using the fast-interrupt request framework, This allows 391 the driver to get DMA-like performance when there are either 392 no free DMA channels, or when doing transfers that required both 393 TX and RX data paths. 394 395config SPI_S3C64XX 396 tristate "Samsung S3C64XX series type SPI" 397 depends on PLAT_SAMSUNG 398 select S3C64XX_DMA if ARCH_S3C64XX 399 help 400 SPI driver for Samsung S3C64XX and newer SoCs. 401 402config SPI_SC18IS602 403 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 404 depends on I2C 405 help 406 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 407 408config SPI_SH_MSIOF 409 tristate "SuperH MSIOF SPI controller" 410 depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK 411 select SPI_BITBANG 412 help 413 SPI driver for SuperH and SH Mobile MSIOF blocks. 414 415config SPI_SH 416 tristate "SuperH SPI controller" 417 depends on SUPERH || COMPILE_TEST 418 help 419 SPI driver for SuperH SPI blocks. 420 421config SPI_SH_SCI 422 tristate "SuperH SCI SPI controller" 423 depends on SUPERH 424 select SPI_BITBANG 425 help 426 SPI driver for SuperH SCI blocks. 427 428config SPI_SH_HSPI 429 tristate "SuperH HSPI controller" 430 depends on ARCH_SHMOBILE || COMPILE_TEST 431 help 432 SPI driver for SuperH HSPI blocks. 433 434config SPI_SIRF 435 tristate "CSR SiRFprimaII SPI controller" 436 depends on SIRF_DMA 437 select SPI_BITBANG 438 help 439 SPI driver for CSR SiRFprimaII SoCs 440 441config SPI_MXS 442 tristate "Freescale MXS SPI controller" 443 depends on ARCH_MXS 444 select STMP_DEVICE 445 help 446 SPI driver for Freescale MXS devices. 447 448config SPI_TEGRA114 449 tristate "NVIDIA Tegra114 SPI Controller" 450 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 451 help 452 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller 453 is different than the older SoCs SPI controller and also register interface 454 get changed with this controller. 455 456config SPI_TEGRA20_SFLASH 457 tristate "Nvidia Tegra20 Serial flash Controller" 458 depends on ARCH_TEGRA || COMPILE_TEST 459 help 460 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 461 The main usecase of this controller is to use spi flash as boot 462 device. 463 464config SPI_TEGRA20_SLINK 465 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 466 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 467 help 468 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 469 470config SPI_TI_SSP 471 tristate "TI Sequencer Serial Port - SPI Support" 472 depends on MFD_TI_SSP 473 help 474 This selects an SPI master implementation using a TI sequencer 475 serial port. 476 477config SPI_TOPCLIFF_PCH 478 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 479 depends on PCI 480 help 481 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 482 used in some x86 embedded processors. 483 484 This driver also supports the ML7213/ML7223/ML7831, a companion chip 485 for the Atom E6xx series and compatible with the Intel EG20T PCH. 486 487config SPI_TXX9 488 tristate "Toshiba TXx9 SPI controller" 489 depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST) 490 help 491 SPI driver for Toshiba TXx9 MIPS SoCs 492 493config SPI_XCOMM 494 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 495 depends on I2C 496 help 497 Support for the SPI-I2C bridge found on the Analog Devices 498 AD-FMCOMMS1-EBZ board. 499 500config SPI_XILINX 501 tristate "Xilinx SPI controller common module" 502 depends on HAS_IOMEM 503 select SPI_BITBANG 504 help 505 This exposes the SPI controller IP from the Xilinx EDK. 506 507 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 508 Product Specification document (DS464) for hardware details. 509 510 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 511 512config SPI_NUC900 513 tristate "Nuvoton NUC900 series SPI" 514 depends on ARCH_W90X900 515 select SPI_BITBANG 516 help 517 SPI driver for Nuvoton NUC900 series ARM SoCs 518 519# 520# Add new SPI master controllers in alphabetical order above this line 521# 522 523config SPI_DESIGNWARE 524 tristate "DesignWare SPI controller core support" 525 help 526 general driver for SPI controller core from DesignWare 527 528config SPI_DW_PCI 529 tristate "PCI interface driver for DW SPI core" 530 depends on SPI_DESIGNWARE && PCI 531 532config SPI_DW_MID_DMA 533 bool "DMA support for DW SPI controller on Intel Moorestown platform" 534 depends on SPI_DW_PCI && INTEL_MID_DMAC 535 536config SPI_DW_MMIO 537 tristate "Memory-mapped io interface driver for DW SPI core" 538 depends on SPI_DESIGNWARE && HAVE_CLK 539 540# 541# There are lots of SPI device types, with sensors and memory 542# being probably the most widely used ones. 543# 544comment "SPI Protocol Masters" 545 546config SPI_SPIDEV 547 tristate "User mode SPI device driver support" 548 help 549 This supports user mode SPI protocol drivers. 550 551 Note that this application programming interface is EXPERIMENTAL 552 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 553 554config SPI_TLE62X0 555 tristate "Infineon TLE62X0 (for power switching)" 556 depends on SYSFS 557 help 558 SPI driver for Infineon TLE62X0 series line driver chips, 559 such as the TLE6220, TLE6230 and TLE6240. This provides a 560 sysfs interface, with each line presented as a kind of GPIO 561 exposing both switch control and diagnostic feedback. 562 563# 564# Add new SPI protocol masters in alphabetical order above this line 565# 566 567endif # SPI_MASTER 568 569# (slave support would go here) 570 571endif # SPI 572