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 || COMPILE_TEST) 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 || COMPILE_TEST 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 && !BF60x 92 help 93 This is the SPI controller master driver for Blackfin 5xx processor. 94 95config SPI_BFIN_V3 96 tristate "SPI controller v3 for Blackfin" 97 depends on BF60x 98 help 99 This is the SPI controller v3 master driver 100 found on Blackfin 60x processor. 101 102config SPI_BFIN_SPORT 103 tristate "SPI bus via Blackfin SPORT" 104 depends on BLACKFIN 105 help 106 Enable support for a SPI bus via the Blackfin SPORT peripheral. 107 108config SPI_AU1550 109 tristate "Au1550/Au1200/Au1300 SPI Controller" 110 depends on MIPS_ALCHEMY 111 select SPI_BITBANG 112 help 113 If you say yes to this option, support will be included for the 114 PSC SPI controller found on Au1550, Au1200 and Au1300 series. 115 116config SPI_BCM63XX 117 tristate "Broadcom BCM63xx SPI controller" 118 depends on BCM63XX 119 help 120 Enable support for the SPI controller on the Broadcom BCM63xx SoCs. 121 122config SPI_BITBANG 123 tristate "Utilities for Bitbanging SPI masters" 124 help 125 With a few GPIO pins, your system can bitbang the SPI protocol. 126 Select this to get SPI support through I/O pins (GPIO, parallel 127 port, etc). Or, some systems' SPI master controller drivers use 128 this code to manage the per-word or per-transfer accesses to the 129 hardware shift registers. 130 131 This is library code, and is automatically selected by drivers that 132 need it. You only need to select this explicitly to support driver 133 modules that aren't part of this kernel tree. 134 135config SPI_BUTTERFLY 136 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" 137 depends on PARPORT 138 select SPI_BITBANG 139 help 140 This uses a custom parallel port cable to connect to an AVR 141 Butterfly <http://www.atmel.com/products/avr/butterfly>, an 142 inexpensive battery powered microcontroller evaluation board. 143 This same cable can be used to flash new firmware. 144 145config SPI_CLPS711X 146 tristate "CLPS711X host SPI controller" 147 depends on ARCH_CLPS711X 148 help 149 This enables dedicated general purpose SPI/Microwire1-compatible 150 master mode interface (SSI1) for CLPS711X-based CPUs. 151 152config SPI_COLDFIRE_QSPI 153 tristate "Freescale Coldfire QSPI controller" 154 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 155 help 156 This enables support for the Coldfire QSPI controller in master 157 mode. 158 159config SPI_DAVINCI 160 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 161 depends on ARCH_DAVINCI || ARCH_KEYSTONE 162 select SPI_BITBANG 163 select TI_EDMA 164 help 165 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 166 167config SPI_EFM32 168 tristate "EFM32 SPI controller" 169 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 170 select SPI_BITBANG 171 help 172 Driver for the spi controller found on Energy Micro's EFM32 SoCs. 173 174config SPI_EP93XX 175 tristate "Cirrus Logic EP93xx SPI controller" 176 depends on ARCH_EP93XX || COMPILE_TEST 177 help 178 This enables using the Cirrus EP93xx SPI controller in master 179 mode. 180 181config SPI_FALCON 182 tristate "Falcon SPI controller support" 183 depends on SOC_FALCON 184 help 185 The external bus unit (EBU) found on the FALC-ON SoC has SPI 186 emulation that is designed for serial flash access. This driver 187 has only been tested with m25p80 type chips. The hardware has no 188 support for other types of SPI peripherals. 189 190config SPI_GPIO 191 tristate "GPIO-based bitbanging SPI Master" 192 depends on GPIOLIB 193 select SPI_BITBANG 194 help 195 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 196 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 197 slaves connected to a bus using this driver are configured as usual, 198 except that the spi_board_info.controller_data holds the GPIO number 199 for the chipselect used by this controller driver. 200 201 Note that this driver often won't achieve even 1 Mbit/sec speeds, 202 making it unusually slow for SPI. If your platform can inline 203 GPIO operations, you should be able to leverage that for better 204 speed with a custom version of this driver; see the source code. 205 206config SPI_IMX 207 tristate "Freescale i.MX SPI controllers" 208 depends on ARCH_MXC || COMPILE_TEST 209 select SPI_BITBANG 210 default m if IMX_HAVE_PLATFORM_SPI_IMX 211 help 212 This enables using the Freescale i.MX SPI controllers in master 213 mode. 214 215config SPI_LM70_LLP 216 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 217 depends on PARPORT 218 select SPI_BITBANG 219 help 220 This driver supports the NS LM70 LLP Evaluation Board, 221 which interfaces to an LM70 temperature sensor using 222 a parallel port. 223 224config SPI_MPC52xx 225 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 226 depends on PPC_MPC52xx 227 help 228 This drivers supports the MPC52xx SPI controller in master SPI 229 mode. 230 231config SPI_MPC52xx_PSC 232 tristate "Freescale MPC52xx PSC SPI controller" 233 depends on PPC_MPC52xx 234 help 235 This enables using the Freescale MPC52xx Programmable Serial 236 Controller in master SPI mode. 237 238config SPI_MPC512x_PSC 239 tristate "Freescale MPC512x PSC SPI controller" 240 depends on PPC_MPC512x 241 help 242 This enables using the Freescale MPC5121 Programmable Serial 243 Controller in SPI master mode. 244 245config SPI_FSL_LIB 246 tristate 247 depends on OF 248 249config SPI_FSL_CPM 250 tristate 251 depends on FSL_SOC 252 253config SPI_FSL_SPI 254 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 255 depends on OF 256 select SPI_FSL_LIB 257 select SPI_FSL_CPM if FSL_SOC 258 help 259 This enables using the Freescale SPI controllers in master mode. 260 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 261 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 262 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 263 master mode. 264 265config SPI_FSL_DSPI 266 tristate "Freescale DSPI controller" 267 select SPI_BITBANG 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) && GENERIC_HARDIRQS 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 && 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 (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS) 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