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_ADI_V3 95 tristate "SPI controller v3 for ADI" 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_CADENCE 152 tristate "Cadence SPI controller" 153 depends on ARM 154 help 155 This selects the Cadence SPI controller master driver 156 used by Xilinx Zynq. 157 158config SPI_CLPS711X 159 tristate "CLPS711X host SPI controller" 160 depends on ARCH_CLPS711X || COMPILE_TEST 161 help 162 This enables dedicated general purpose SPI/Microwire1-compatible 163 master mode interface (SSI1) for CLPS711X-based CPUs. 164 165config SPI_COLDFIRE_QSPI 166 tristate "Freescale Coldfire QSPI controller" 167 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 168 help 169 This enables support for the Coldfire QSPI controller in master 170 mode. 171 172config SPI_DAVINCI 173 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 174 depends on ARCH_DAVINCI || ARCH_KEYSTONE 175 select SPI_BITBANG 176 help 177 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 178 179config SPI_EFM32 180 tristate "EFM32 SPI controller" 181 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 182 select SPI_BITBANG 183 help 184 Driver for the spi controller found on Energy Micro's EFM32 SoCs. 185 186config SPI_EP93XX 187 tristate "Cirrus Logic EP93xx SPI controller" 188 depends on ARCH_EP93XX || COMPILE_TEST 189 help 190 This enables using the Cirrus EP93xx SPI controller in master 191 mode. 192 193config SPI_FALCON 194 tristate "Falcon SPI controller support" 195 depends on SOC_FALCON 196 help 197 The external bus unit (EBU) found on the FALC-ON SoC has SPI 198 emulation that is designed for serial flash access. This driver 199 has only been tested with m25p80 type chips. The hardware has no 200 support for other types of SPI peripherals. 201 202config SPI_GPIO 203 tristate "GPIO-based bitbanging SPI Master" 204 depends on GPIOLIB 205 select SPI_BITBANG 206 help 207 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 208 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 209 slaves connected to a bus using this driver are configured as usual, 210 except that the spi_board_info.controller_data holds the GPIO number 211 for the chipselect used by this controller driver. 212 213 Note that this driver often won't achieve even 1 Mbit/sec speeds, 214 making it unusually slow for SPI. If your platform can inline 215 GPIO operations, you should be able to leverage that for better 216 speed with a custom version of this driver; see the source code. 217 218config SPI_IMX 219 tristate "Freescale i.MX SPI controllers" 220 depends on ARCH_MXC || COMPILE_TEST 221 select SPI_BITBANG 222 help 223 This enables using the Freescale i.MX SPI controllers in master 224 mode. 225 226config SPI_LM70_LLP 227 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 228 depends on PARPORT 229 select SPI_BITBANG 230 help 231 This driver supports the NS LM70 LLP Evaluation Board, 232 which interfaces to an LM70 temperature sensor using 233 a parallel port. 234 235config SPI_MPC52xx 236 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 237 depends on PPC_MPC52xx 238 help 239 This drivers supports the MPC52xx SPI controller in master SPI 240 mode. 241 242config SPI_MPC52xx_PSC 243 tristate "Freescale MPC52xx PSC SPI controller" 244 depends on PPC_MPC52xx 245 help 246 This enables using the Freescale MPC52xx Programmable Serial 247 Controller in master SPI mode. 248 249config SPI_MPC512x_PSC 250 tristate "Freescale MPC512x PSC SPI controller" 251 depends on PPC_MPC512x 252 help 253 This enables using the Freescale MPC5121 Programmable Serial 254 Controller in SPI master mode. 255 256config SPI_FSL_LIB 257 tristate 258 depends on OF 259 260config SPI_FSL_CPM 261 tristate 262 depends on FSL_SOC 263 264config SPI_FSL_SPI 265 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 266 depends on OF 267 select SPI_FSL_LIB 268 select SPI_FSL_CPM if FSL_SOC 269 help 270 This enables using the Freescale SPI controllers in master mode. 271 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 272 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 273 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 274 master mode. 275 276config SPI_FSL_DSPI 277 tristate "Freescale DSPI controller" 278 select SPI_BITBANG 279 select REGMAP_MMIO 280 depends on SOC_VF610 || COMPILE_TEST 281 help 282 This enables support for the Freescale DSPI controller in master 283 mode. VF610 platform uses the controller. 284 285config SPI_FSL_ESPI 286 bool "Freescale eSPI controller" 287 depends on FSL_SOC 288 select SPI_FSL_LIB 289 help 290 This enables using the Freescale eSPI controllers in master mode. 291 From MPC8536, 85xx platform uses the controller, and all P10xx, 292 P20xx, P30xx,P40xx, P50xx uses this controller. 293 294config SPI_OC_TINY 295 tristate "OpenCores tiny SPI" 296 depends on GPIOLIB 297 select SPI_BITBANG 298 help 299 This is the driver for OpenCores tiny SPI master controller. 300 301config SPI_OCTEON 302 tristate "Cavium OCTEON SPI controller" 303 depends on CAVIUM_OCTEON_SOC 304 help 305 SPI host driver for the hardware found on some Cavium OCTEON 306 SOCs. 307 308config SPI_OMAP_UWIRE 309 tristate "OMAP1 MicroWire" 310 depends on ARCH_OMAP1 311 select SPI_BITBANG 312 help 313 This hooks up to the MicroWire controller on OMAP1 chips. 314 315config SPI_OMAP24XX 316 tristate "McSPI driver for OMAP" 317 depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH 318 depends on ARCH_OMAP2PLUS || COMPILE_TEST 319 help 320 SPI master controller for OMAP24XX and later Multichannel SPI 321 (McSPI) modules. 322 323config SPI_TI_QSPI 324 tristate "DRA7xxx QSPI controller support" 325 depends on ARCH_OMAP2PLUS || COMPILE_TEST 326 help 327 QSPI master controller for DRA7xxx used for flash devices. 328 This device supports single, dual and quad read support, while 329 it only supports single write mode. 330 331config SPI_OMAP_100K 332 tristate "OMAP SPI 100K" 333 depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST 334 help 335 OMAP SPI 100K master controller for omap7xx boards. 336 337config SPI_ORION 338 tristate "Orion SPI master" 339 depends on PLAT_ORION || COMPILE_TEST 340 help 341 This enables using the SPI master controller on the Orion chips. 342 343config SPI_PL022 344 tristate "ARM AMBA PL022 SSP controller" 345 depends on ARM_AMBA 346 default y if MACH_U300 347 default y if ARCH_REALVIEW 348 default y if INTEGRATOR_IMPD1 349 default y if ARCH_VERSATILE 350 help 351 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 352 controller. If you have an embedded system with an AMBA(R) 353 bus and a PL022 controller, say Y or M here. 354 355config SPI_PPC4xx 356 tristate "PPC4xx SPI Controller" 357 depends on PPC32 && 4xx 358 select SPI_BITBANG 359 help 360 This selects a driver for the PPC4xx SPI Controller. 361 362config SPI_PXA2XX_PXADMA 363 bool "PXA2xx SSP legacy PXA DMA API support" 364 depends on SPI_PXA2XX && ARCH_PXA 365 help 366 Enable PXA private legacy DMA API support. Note that this is 367 deprecated in favor of generic DMA engine API. 368 369config SPI_PXA2XX_DMA 370 def_bool y 371 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA 372 373config SPI_PXA2XX 374 tristate "PXA2xx SSP SPI master" 375 depends on (ARCH_PXA || PCI || ACPI) 376 select PXA_SSP if ARCH_PXA 377 help 378 This enables using a PXA2xx or Sodaville SSP port as a SPI master 379 controller. The driver can be configured to use any SSP port and 380 additional documentation can be found a Documentation/spi/pxa2xx. 381 382config SPI_PXA2XX_PCI 383 def_tristate SPI_PXA2XX && PCI 384 385config SPI_ROCKCHIP 386 tristate "Rockchip SPI controller driver" 387 depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH 388 help 389 This selects a driver for Rockchip SPI controller. 390 391 If you say yes to this option, support will be included for 392 RK3066, RK3188 and RK3288 families of SPI controller. 393 Rockchip SPI controller support DMA transport and PIO mode. 394 The main usecase of this controller is to use spi flash as boot 395 device. 396 397config SPI_RSPI 398 tristate "Renesas RSPI/QSPI controller" 399 depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST 400 help 401 SPI driver for Renesas RSPI and QSPI blocks. 402 403config SPI_QUP 404 tristate "Qualcomm SPI controller with QUP interface" 405 depends on ARCH_QCOM || (ARM && COMPILE_TEST) 406 help 407 Qualcomm Universal Peripheral (QUP) core is an AHB slave that 408 provides a common data path (an output FIFO and an input FIFO) 409 for serial peripheral interface (SPI) mini-core. SPI in master 410 mode supports up to 50MHz, up to four chip selects, programmable 411 data path from 4 bits to 32 bits and numerous protocol variants. 412 413 This driver can also be built as a module. If so, the module 414 will be called spi_qup. 415 416config SPI_S3C24XX 417 tristate "Samsung S3C24XX series SPI" 418 depends on ARCH_S3C24XX 419 select SPI_BITBANG 420 help 421 SPI driver for Samsung S3C24XX series ARM SoCs 422 423config SPI_S3C24XX_FIQ 424 bool "S3C24XX driver with FIQ pseudo-DMA" 425 depends on SPI_S3C24XX 426 select FIQ 427 help 428 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 429 DMA by using the fast-interrupt request framework, This allows 430 the driver to get DMA-like performance when there are either 431 no free DMA channels, or when doing transfers that required both 432 TX and RX data paths. 433 434config SPI_S3C64XX 435 tristate "Samsung S3C64XX series type SPI" 436 depends on PLAT_SAMSUNG 437 select S3C64XX_PL080 if ARCH_S3C64XX 438 help 439 SPI driver for Samsung S3C64XX and newer SoCs. 440 441config SPI_SC18IS602 442 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 443 depends on I2C 444 help 445 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 446 447config SPI_SH_MSIOF 448 tristate "SuperH MSIOF SPI controller" 449 depends on HAVE_CLK && HAS_DMA 450 depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST 451 help 452 SPI driver for SuperH and SH Mobile MSIOF blocks. 453 454config SPI_SH 455 tristate "SuperH SPI controller" 456 depends on SUPERH || COMPILE_TEST 457 help 458 SPI driver for SuperH SPI blocks. 459 460config SPI_SH_SCI 461 tristate "SuperH SCI SPI controller" 462 depends on SUPERH 463 select SPI_BITBANG 464 help 465 SPI driver for SuperH SCI blocks. 466 467config SPI_SH_HSPI 468 tristate "SuperH HSPI controller" 469 depends on ARCH_SHMOBILE || COMPILE_TEST 470 help 471 SPI driver for SuperH HSPI blocks. 472 473config SPI_SIRF 474 tristate "CSR SiRFprimaII SPI controller" 475 depends on SIRF_DMA 476 select SPI_BITBANG 477 help 478 SPI driver for CSR SiRFprimaII SoCs 479 480config SPI_SUN4I 481 tristate "Allwinner A10 SoCs SPI controller" 482 depends on ARCH_SUNXI || COMPILE_TEST 483 help 484 SPI driver for Allwinner sun4i, sun5i and sun7i SoCs 485 486config SPI_SUN6I 487 tristate "Allwinner A31 SPI controller" 488 depends on ARCH_SUNXI || COMPILE_TEST 489 depends on RESET_CONTROLLER 490 help 491 This enables using the SPI controller on the Allwinner A31 SoCs. 492 493config SPI_MXS 494 tristate "Freescale MXS SPI controller" 495 depends on ARCH_MXS 496 select STMP_DEVICE 497 help 498 SPI driver for Freescale MXS devices. 499 500config SPI_TEGRA114 501 tristate "NVIDIA Tegra114 SPI Controller" 502 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 503 depends on RESET_CONTROLLER 504 help 505 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller 506 is different than the older SoCs SPI controller and also register interface 507 get changed with this controller. 508 509config SPI_TEGRA20_SFLASH 510 tristate "Nvidia Tegra20 Serial flash Controller" 511 depends on ARCH_TEGRA || COMPILE_TEST 512 depends on RESET_CONTROLLER 513 help 514 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 515 The main usecase of this controller is to use spi flash as boot 516 device. 517 518config SPI_TEGRA20_SLINK 519 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 520 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 521 depends on RESET_CONTROLLER 522 help 523 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 524 525config SPI_TOPCLIFF_PCH 526 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 527 depends on PCI && (X86_32 || COMPILE_TEST) 528 help 529 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 530 used in some x86 embedded processors. 531 532 This driver also supports the ML7213/ML7223/ML7831, a companion chip 533 for the Atom E6xx series and compatible with the Intel EG20T PCH. 534 535config SPI_TXX9 536 tristate "Toshiba TXx9 SPI controller" 537 depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST) 538 help 539 SPI driver for Toshiba TXx9 MIPS SoCs 540 541config SPI_XCOMM 542 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 543 depends on I2C 544 help 545 Support for the SPI-I2C bridge found on the Analog Devices 546 AD-FMCOMMS1-EBZ board. 547 548config SPI_XILINX 549 tristate "Xilinx SPI controller common module" 550 depends on HAS_IOMEM 551 select SPI_BITBANG 552 help 553 This exposes the SPI controller IP from the Xilinx EDK. 554 555 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 556 Product Specification document (DS464) for hardware details. 557 558 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 559 560config SPI_XTENSA_XTFPGA 561 tristate "Xtensa SPI controller for xtfpga" 562 depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST 563 select SPI_BITBANG 564 help 565 SPI driver for xtfpga SPI master controller. 566 567 This simple SPI master controller is built into xtfpga bitstreams 568 and is used to control daughterboard audio codec. It always transfers 569 16 bit words in SPI mode 0, automatically asserting CS on transfer 570 start and deasserting on end. 571 572 573config SPI_NUC900 574 tristate "Nuvoton NUC900 series SPI" 575 depends on ARCH_W90X900 576 select SPI_BITBANG 577 help 578 SPI driver for Nuvoton NUC900 series ARM SoCs 579 580# 581# Add new SPI master controllers in alphabetical order above this line 582# 583 584config SPI_DESIGNWARE 585 tristate "DesignWare SPI controller core support" 586 help 587 general driver for SPI controller core from DesignWare 588 589config SPI_DW_PCI 590 tristate "PCI interface driver for DW SPI core" 591 depends on SPI_DESIGNWARE && PCI 592 593config SPI_DW_MID_DMA 594 bool "DMA support for DW SPI controller on Intel Moorestown platform" 595 depends on SPI_DW_PCI && INTEL_MID_DMAC 596 597config SPI_DW_MMIO 598 tristate "Memory-mapped io interface driver for DW SPI core" 599 depends on SPI_DESIGNWARE 600 601# 602# There are lots of SPI device types, with sensors and memory 603# being probably the most widely used ones. 604# 605comment "SPI Protocol Masters" 606 607config SPI_SPIDEV 608 tristate "User mode SPI device driver support" 609 help 610 This supports user mode SPI protocol drivers. 611 612 Note that this application programming interface is EXPERIMENTAL 613 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 614 615config SPI_TLE62X0 616 tristate "Infineon TLE62X0 (for power switching)" 617 depends on SYSFS 618 help 619 SPI driver for Infineon TLE62X0 series line driver chips, 620 such as the TLE6220, TLE6230 and TLE6240. This provides a 621 sysfs interface, with each line presented as a kind of GPIO 622 exposing both switch control and diagnostic feedback. 623 624# 625# Add new SPI protocol masters in alphabetical order above this line 626# 627 628endif # SPI_MASTER 629 630# (slave support would go here) 631 632endif # SPI 633