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_BCM63XX_HSSPI 122 tristate "Broadcom BCM63XX HS SPI controller driver" 123 depends on BCM63XX || COMPILE_TEST 124 help 125 This enables support for the High Speed SPI controller present on 126 newer Broadcom BCM63XX SoCs. 127 128config SPI_BITBANG 129 tristate "Utilities for Bitbanging SPI masters" 130 help 131 With a few GPIO pins, your system can bitbang the SPI protocol. 132 Select this to get SPI support through I/O pins (GPIO, parallel 133 port, etc). Or, some systems' SPI master controller drivers use 134 this code to manage the per-word or per-transfer accesses to the 135 hardware shift registers. 136 137 This is library code, and is automatically selected by drivers that 138 need it. You only need to select this explicitly to support driver 139 modules that aren't part of this kernel tree. 140 141config SPI_BUTTERFLY 142 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" 143 depends on PARPORT 144 select SPI_BITBANG 145 help 146 This uses a custom parallel port cable to connect to an AVR 147 Butterfly <http://www.atmel.com/products/avr/butterfly>, an 148 inexpensive battery powered microcontroller evaluation board. 149 This same cable can be used to flash new firmware. 150 151config SPI_CLPS711X 152 tristate "CLPS711X host SPI controller" 153 depends on ARCH_CLPS711X || COMPILE_TEST 154 help 155 This enables dedicated general purpose SPI/Microwire1-compatible 156 master mode interface (SSI1) for CLPS711X-based CPUs. 157 158config SPI_COLDFIRE_QSPI 159 tristate "Freescale Coldfire QSPI controller" 160 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 161 help 162 This enables support for the Coldfire QSPI controller in master 163 mode. 164 165config SPI_DAVINCI 166 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 167 depends on ARCH_DAVINCI || ARCH_KEYSTONE 168 select SPI_BITBANG 169 help 170 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 171 172config SPI_EFM32 173 tristate "EFM32 SPI controller" 174 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 175 select SPI_BITBANG 176 help 177 Driver for the spi controller found on Energy Micro's EFM32 SoCs. 178 179config SPI_EP93XX 180 tristate "Cirrus Logic EP93xx SPI controller" 181 depends on ARCH_EP93XX || COMPILE_TEST 182 help 183 This enables using the Cirrus EP93xx SPI controller in master 184 mode. 185 186config SPI_FALCON 187 tristate "Falcon SPI controller support" 188 depends on SOC_FALCON 189 help 190 The external bus unit (EBU) found on the FALC-ON SoC has SPI 191 emulation that is designed for serial flash access. This driver 192 has only been tested with m25p80 type chips. The hardware has no 193 support for other types of SPI peripherals. 194 195config SPI_GPIO 196 tristate "GPIO-based bitbanging SPI Master" 197 depends on GPIOLIB 198 select SPI_BITBANG 199 help 200 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 201 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 202 slaves connected to a bus using this driver are configured as usual, 203 except that the spi_board_info.controller_data holds the GPIO number 204 for the chipselect used by this controller driver. 205 206 Note that this driver often won't achieve even 1 Mbit/sec speeds, 207 making it unusually slow for SPI. If your platform can inline 208 GPIO operations, you should be able to leverage that for better 209 speed with a custom version of this driver; see the source code. 210 211config SPI_IMX 212 tristate "Freescale i.MX SPI controllers" 213 depends on ARCH_MXC || COMPILE_TEST 214 select SPI_BITBANG 215 help 216 This enables using the Freescale i.MX SPI controllers in master 217 mode. 218 219config SPI_LM70_LLP 220 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 221 depends on PARPORT 222 select SPI_BITBANG 223 help 224 This driver supports the NS LM70 LLP Evaluation Board, 225 which interfaces to an LM70 temperature sensor using 226 a parallel port. 227 228config SPI_MPC52xx 229 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 230 depends on PPC_MPC52xx 231 help 232 This drivers supports the MPC52xx SPI controller in master SPI 233 mode. 234 235config SPI_MPC52xx_PSC 236 tristate "Freescale MPC52xx PSC SPI controller" 237 depends on PPC_MPC52xx 238 help 239 This enables using the Freescale MPC52xx Programmable Serial 240 Controller in master SPI mode. 241 242config SPI_MPC512x_PSC 243 tristate "Freescale MPC512x PSC SPI controller" 244 depends on PPC_MPC512x 245 help 246 This enables using the Freescale MPC5121 Programmable Serial 247 Controller in SPI master mode. 248 249config SPI_FSL_LIB 250 tristate 251 depends on OF 252 253config SPI_FSL_CPM 254 tristate 255 depends on FSL_SOC 256 257config SPI_FSL_SPI 258 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 259 depends on OF 260 select SPI_FSL_LIB 261 select SPI_FSL_CPM if FSL_SOC 262 help 263 This enables using the Freescale SPI controllers in master mode. 264 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 265 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 266 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 267 master mode. 268 269config SPI_FSL_DSPI 270 tristate "Freescale DSPI controller" 271 select SPI_BITBANG 272 select REGMAP_MMIO 273 depends on SOC_VF610 || COMPILE_TEST 274 help 275 This enables support for the Freescale DSPI controller in master 276 mode. VF610 platform uses the controller. 277 278config SPI_FSL_ESPI 279 bool "Freescale eSPI controller" 280 depends on FSL_SOC 281 select SPI_FSL_LIB 282 help 283 This enables using the Freescale eSPI controllers in master mode. 284 From MPC8536, 85xx platform uses the controller, and all P10xx, 285 P20xx, P30xx,P40xx, P50xx uses this controller. 286 287config SPI_OC_TINY 288 tristate "OpenCores tiny SPI" 289 depends on GPIOLIB 290 select SPI_BITBANG 291 help 292 This is the driver for OpenCores tiny SPI master controller. 293 294config SPI_OCTEON 295 tristate "Cavium OCTEON SPI controller" 296 depends on CAVIUM_OCTEON_SOC 297 help 298 SPI host driver for the hardware found on some Cavium OCTEON 299 SOCs. 300 301config SPI_OMAP_UWIRE 302 tristate "OMAP1 MicroWire" 303 depends on ARCH_OMAP1 304 select SPI_BITBANG 305 help 306 This hooks up to the MicroWire controller on OMAP1 chips. 307 308config SPI_OMAP24XX 309 tristate "McSPI driver for OMAP" 310 depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH 311 depends on ARCH_OMAP2PLUS || COMPILE_TEST 312 help 313 SPI master controller for OMAP24XX and later Multichannel SPI 314 (McSPI) modules. 315 316config SPI_TI_QSPI 317 tristate "DRA7xxx QSPI controller support" 318 depends on ARCH_OMAP2PLUS || COMPILE_TEST 319 help 320 QSPI master controller for DRA7xxx used for flash devices. 321 This device supports single, dual and quad read support, while 322 it only supports single write mode. 323 324config SPI_OMAP_100K 325 tristate "OMAP SPI 100K" 326 depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST 327 help 328 OMAP SPI 100K master controller for omap7xx boards. 329 330config SPI_ORION 331 tristate "Orion SPI master" 332 depends on PLAT_ORION || COMPILE_TEST 333 help 334 This enables using the SPI master controller on the Orion chips. 335 336config SPI_PL022 337 tristate "ARM AMBA PL022 SSP controller" 338 depends on ARM_AMBA 339 default y if MACH_U300 340 default y if ARCH_REALVIEW 341 default y if INTEGRATOR_IMPD1 342 default y if ARCH_VERSATILE 343 help 344 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 345 controller. If you have an embedded system with an AMBA(R) 346 bus and a PL022 controller, say Y or M here. 347 348config SPI_PPC4xx 349 tristate "PPC4xx SPI Controller" 350 depends on PPC32 && 4xx 351 select SPI_BITBANG 352 help 353 This selects a driver for the PPC4xx SPI Controller. 354 355config SPI_PXA2XX_PXADMA 356 bool "PXA2xx SSP legacy PXA DMA API support" 357 depends on SPI_PXA2XX && ARCH_PXA 358 help 359 Enable PXA private legacy DMA API support. Note that this is 360 deprecated in favor of generic DMA engine API. 361 362config SPI_PXA2XX_DMA 363 def_bool y 364 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA 365 366config SPI_PXA2XX 367 tristate "PXA2xx SSP SPI master" 368 depends on (ARCH_PXA || PCI || ACPI) 369 select PXA_SSP if ARCH_PXA 370 help 371 This enables using a PXA2xx or Sodaville SSP port as a SPI master 372 controller. The driver can be configured to use any SSP port and 373 additional documentation can be found a Documentation/spi/pxa2xx. 374 375config SPI_PXA2XX_PCI 376 def_tristate SPI_PXA2XX && PCI 377 378config SPI_RSPI 379 tristate "Renesas RSPI/QSPI controller" 380 depends on (SUPERH && SH_DMAE_BASE) || ARCH_SHMOBILE 381 help 382 SPI driver for Renesas RSPI and QSPI blocks. 383 384config SPI_QUP 385 tristate "Qualcomm SPI controller with QUP interface" 386 depends on ARCH_QCOM || (ARM && COMPILE_TEST) 387 help 388 Qualcomm Universal Peripheral (QUP) core is an AHB slave that 389 provides a common data path (an output FIFO and an input FIFO) 390 for serial peripheral interface (SPI) mini-core. SPI in master 391 mode supports up to 50MHz, up to four chip selects, programmable 392 data path from 4 bits to 32 bits and numerous protocol variants. 393 394 This driver can also be built as a module. If so, the module 395 will be called spi_qup. 396 397config SPI_S3C24XX 398 tristate "Samsung S3C24XX series SPI" 399 depends on ARCH_S3C24XX 400 select SPI_BITBANG 401 help 402 SPI driver for Samsung S3C24XX series ARM SoCs 403 404config SPI_S3C24XX_FIQ 405 bool "S3C24XX driver with FIQ pseudo-DMA" 406 depends on SPI_S3C24XX 407 select FIQ 408 help 409 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 410 DMA by using the fast-interrupt request framework, This allows 411 the driver to get DMA-like performance when there are either 412 no free DMA channels, or when doing transfers that required both 413 TX and RX data paths. 414 415config SPI_S3C64XX 416 tristate "Samsung S3C64XX series type SPI" 417 depends on PLAT_SAMSUNG 418 select S3C64XX_PL080 if ARCH_S3C64XX 419 help 420 SPI driver for Samsung S3C64XX and newer SoCs. 421 422config SPI_SC18IS602 423 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 424 depends on I2C 425 help 426 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 427 428config SPI_SH_MSIOF 429 tristate "SuperH MSIOF SPI controller" 430 depends on HAVE_CLK 431 depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST 432 help 433 SPI driver for SuperH and SH Mobile MSIOF blocks. 434 435config SPI_SH 436 tristate "SuperH SPI controller" 437 depends on SUPERH || COMPILE_TEST 438 help 439 SPI driver for SuperH SPI blocks. 440 441config SPI_SH_SCI 442 tristate "SuperH SCI SPI controller" 443 depends on SUPERH 444 select SPI_BITBANG 445 help 446 SPI driver for SuperH SCI blocks. 447 448config SPI_SH_HSPI 449 tristate "SuperH HSPI controller" 450 depends on ARCH_SHMOBILE || COMPILE_TEST 451 help 452 SPI driver for SuperH HSPI blocks. 453 454config SPI_SIRF 455 tristate "CSR SiRFprimaII SPI controller" 456 depends on SIRF_DMA 457 select SPI_BITBANG 458 help 459 SPI driver for CSR SiRFprimaII SoCs 460 461config SPI_SUN4I 462 tristate "Allwinner A10 SoCs SPI controller" 463 depends on ARCH_SUNXI || COMPILE_TEST 464 help 465 SPI driver for Allwinner sun4i, sun5i and sun7i SoCs 466 467config SPI_SUN6I 468 tristate "Allwinner A31 SPI controller" 469 depends on ARCH_SUNXI || COMPILE_TEST 470 depends on RESET_CONTROLLER 471 help 472 This enables using the SPI controller on the Allwinner A31 SoCs. 473 474config SPI_MXS 475 tristate "Freescale MXS SPI controller" 476 depends on ARCH_MXS 477 select STMP_DEVICE 478 help 479 SPI driver for Freescale MXS devices. 480 481config SPI_TEGRA114 482 tristate "NVIDIA Tegra114 SPI Controller" 483 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 484 depends on RESET_CONTROLLER 485 help 486 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller 487 is different than the older SoCs SPI controller and also register interface 488 get changed with this controller. 489 490config SPI_TEGRA20_SFLASH 491 tristate "Nvidia Tegra20 Serial flash Controller" 492 depends on ARCH_TEGRA || COMPILE_TEST 493 depends on RESET_CONTROLLER 494 help 495 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 496 The main usecase of this controller is to use spi flash as boot 497 device. 498 499config SPI_TEGRA20_SLINK 500 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 501 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 502 depends on RESET_CONTROLLER 503 help 504 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 505 506config SPI_TOPCLIFF_PCH 507 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 508 depends on PCI 509 help 510 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 511 used in some x86 embedded processors. 512 513 This driver also supports the ML7213/ML7223/ML7831, a companion chip 514 for the Atom E6xx series and compatible with the Intel EG20T PCH. 515 516config SPI_TXX9 517 tristate "Toshiba TXx9 SPI controller" 518 depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST) 519 help 520 SPI driver for Toshiba TXx9 MIPS SoCs 521 522config SPI_XCOMM 523 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 524 depends on I2C 525 help 526 Support for the SPI-I2C bridge found on the Analog Devices 527 AD-FMCOMMS1-EBZ board. 528 529config SPI_XILINX 530 tristate "Xilinx SPI controller common module" 531 depends on HAS_IOMEM 532 select SPI_BITBANG 533 help 534 This exposes the SPI controller IP from the Xilinx EDK. 535 536 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 537 Product Specification document (DS464) for hardware details. 538 539 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 540 541config SPI_XTENSA_XTFPGA 542 tristate "Xtensa SPI controller for xtfpga" 543 depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST 544 select SPI_BITBANG 545 help 546 SPI driver for xtfpga SPI master controller. 547 548 This simple SPI master controller is built into xtfpga bitstreams 549 and is used to control daughterboard audio codec. It always transfers 550 16 bit words in SPI mode 0, automatically asserting CS on transfer 551 start and deasserting on end. 552 553 554config SPI_NUC900 555 tristate "Nuvoton NUC900 series SPI" 556 depends on ARCH_W90X900 557 select SPI_BITBANG 558 help 559 SPI driver for Nuvoton NUC900 series ARM SoCs 560 561# 562# Add new SPI master controllers in alphabetical order above this line 563# 564 565config SPI_DESIGNWARE 566 tristate "DesignWare SPI controller core support" 567 help 568 general driver for SPI controller core from DesignWare 569 570config SPI_DW_PCI 571 tristate "PCI interface driver for DW SPI core" 572 depends on SPI_DESIGNWARE && PCI 573 574config SPI_DW_MID_DMA 575 bool "DMA support for DW SPI controller on Intel Moorestown platform" 576 depends on SPI_DW_PCI && INTEL_MID_DMAC 577 578config SPI_DW_MMIO 579 tristate "Memory-mapped io interface driver for DW SPI core" 580 depends on SPI_DESIGNWARE 581 582# 583# There are lots of SPI device types, with sensors and memory 584# being probably the most widely used ones. 585# 586comment "SPI Protocol Masters" 587 588config SPI_SPIDEV 589 tristate "User mode SPI device driver support" 590 help 591 This supports user mode SPI protocol drivers. 592 593 Note that this application programming interface is EXPERIMENTAL 594 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 595 596config SPI_TLE62X0 597 tristate "Infineon TLE62X0 (for power switching)" 598 depends on SYSFS 599 help 600 SPI driver for Infineon TLE62X0 series line driver chips, 601 such as the TLE6220, TLE6230 and TLE6240. This provides a 602 sysfs interface, with each line presented as a kind of GPIO 603 exposing both switch control and diagnostic feedback. 604 605# 606# Add new SPI protocol masters in alphabetical order above this line 607# 608 609endif # SPI_MASTER 610 611# (slave support would go here) 612 613endif # SPI 614