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 HAS_DMA 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_ADI_V3 96 tristate "SPI controller v3 for ADI" 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_BCM53XX 117 tristate "Broadcom BCM53xx SPI controller" 118 depends on ARCH_BCM_5301X 119 depends on BCMA_POSSIBLE 120 select BCMA 121 help 122 Enable support for the SPI controller on Broadcom BCM53xx ARM SoCs. 123 124config SPI_BCM63XX 125 tristate "Broadcom BCM63xx SPI controller" 126 depends on BCM63XX 127 help 128 Enable support for the SPI controller on the Broadcom BCM63xx SoCs. 129 130config SPI_BCM63XX_HSSPI 131 tristate "Broadcom BCM63XX HS SPI controller driver" 132 depends on BCM63XX || COMPILE_TEST 133 help 134 This enables support for the High Speed SPI controller present on 135 newer Broadcom BCM63XX SoCs. 136 137config SPI_BITBANG 138 tristate "Utilities for Bitbanging SPI masters" 139 help 140 With a few GPIO pins, your system can bitbang the SPI protocol. 141 Select this to get SPI support through I/O pins (GPIO, parallel 142 port, etc). Or, some systems' SPI master controller drivers use 143 this code to manage the per-word or per-transfer accesses to the 144 hardware shift registers. 145 146 This is library code, and is automatically selected by drivers that 147 need it. You only need to select this explicitly to support driver 148 modules that aren't part of this kernel tree. 149 150config SPI_BUTTERFLY 151 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" 152 depends on PARPORT 153 select SPI_BITBANG 154 help 155 This uses a custom parallel port cable to connect to an AVR 156 Butterfly <http://www.atmel.com/products/avr/butterfly>, an 157 inexpensive battery powered microcontroller evaluation board. 158 This same cable can be used to flash new firmware. 159 160config SPI_CADENCE 161 tristate "Cadence SPI controller" 162 depends on ARM 163 help 164 This selects the Cadence SPI controller master driver 165 used by Xilinx Zynq. 166 167config SPI_CLPS711X 168 tristate "CLPS711X host SPI controller" 169 depends on ARCH_CLPS711X || COMPILE_TEST 170 help 171 This enables dedicated general purpose SPI/Microwire1-compatible 172 master mode interface (SSI1) for CLPS711X-based CPUs. 173 174config SPI_COLDFIRE_QSPI 175 tristate "Freescale Coldfire QSPI controller" 176 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 177 help 178 This enables support for the Coldfire QSPI controller in master 179 mode. 180 181config SPI_DAVINCI 182 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 183 depends on ARCH_DAVINCI || ARCH_KEYSTONE 184 select SPI_BITBANG 185 help 186 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 187 188config SPI_EFM32 189 tristate "EFM32 SPI controller" 190 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 191 select SPI_BITBANG 192 help 193 Driver for the spi controller found on Energy Micro's EFM32 SoCs. 194 195config SPI_EP93XX 196 tristate "Cirrus Logic EP93xx SPI controller" 197 depends on HAS_DMA 198 depends on ARCH_EP93XX || COMPILE_TEST 199 help 200 This enables using the Cirrus EP93xx SPI controller in master 201 mode. 202 203config SPI_FALCON 204 tristate "Falcon SPI controller support" 205 depends on SOC_FALCON 206 help 207 The external bus unit (EBU) found on the FALC-ON SoC has SPI 208 emulation that is designed for serial flash access. This driver 209 has only been tested with m25p80 type chips. The hardware has no 210 support for other types of SPI peripherals. 211 212config SPI_GPIO 213 tristate "GPIO-based bitbanging SPI Master" 214 depends on GPIOLIB 215 select SPI_BITBANG 216 help 217 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 218 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 219 slaves connected to a bus using this driver are configured as usual, 220 except that the spi_board_info.controller_data holds the GPIO number 221 for the chipselect used by this controller driver. 222 223 Note that this driver often won't achieve even 1 Mbit/sec speeds, 224 making it unusually slow for SPI. If your platform can inline 225 GPIO operations, you should be able to leverage that for better 226 speed with a custom version of this driver; see the source code. 227 228config SPI_IMX 229 tristate "Freescale i.MX SPI controllers" 230 depends on ARCH_MXC || COMPILE_TEST 231 select SPI_BITBANG 232 help 233 This enables using the Freescale i.MX SPI controllers in master 234 mode. 235 236config SPI_LM70_LLP 237 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 238 depends on PARPORT 239 select SPI_BITBANG 240 help 241 This driver supports the NS LM70 LLP Evaluation Board, 242 which interfaces to an LM70 temperature sensor using 243 a parallel port. 244 245config SPI_MPC52xx 246 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 247 depends on PPC_MPC52xx 248 help 249 This drivers supports the MPC52xx SPI controller in master SPI 250 mode. 251 252config SPI_MPC52xx_PSC 253 tristate "Freescale MPC52xx PSC SPI controller" 254 depends on PPC_MPC52xx 255 help 256 This enables using the Freescale MPC52xx Programmable Serial 257 Controller in master SPI mode. 258 259config SPI_MPC512x_PSC 260 tristate "Freescale MPC512x PSC SPI controller" 261 depends on PPC_MPC512x 262 help 263 This enables using the Freescale MPC5121 Programmable Serial 264 Controller in SPI master mode. 265 266config SPI_FSL_LIB 267 tristate 268 depends on OF 269 270config SPI_FSL_CPM 271 tristate 272 depends on FSL_SOC 273 274config SPI_FSL_SPI 275 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 276 depends on OF 277 select SPI_FSL_LIB 278 select SPI_FSL_CPM if FSL_SOC 279 help 280 This enables using the Freescale SPI controllers in master mode. 281 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 282 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 283 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 284 master mode. 285 286config SPI_FSL_DSPI 287 tristate "Freescale DSPI controller" 288 select SPI_BITBANG 289 select REGMAP_MMIO 290 depends on SOC_VF610 || COMPILE_TEST 291 help 292 This enables support for the Freescale DSPI controller in master 293 mode. VF610 platform uses the controller. 294 295config SPI_FSL_ESPI 296 bool "Freescale eSPI controller" 297 depends on FSL_SOC 298 select SPI_FSL_LIB 299 help 300 This enables using the Freescale eSPI controllers in master mode. 301 From MPC8536, 85xx platform uses the controller, and all P10xx, 302 P20xx, P30xx,P40xx, P50xx uses this controller. 303 304config SPI_OC_TINY 305 tristate "OpenCores tiny SPI" 306 depends on GPIOLIB 307 select SPI_BITBANG 308 help 309 This is the driver for OpenCores tiny SPI master controller. 310 311config SPI_OCTEON 312 tristate "Cavium OCTEON SPI controller" 313 depends on CAVIUM_OCTEON_SOC 314 help 315 SPI host driver for the hardware found on some Cavium OCTEON 316 SOCs. 317 318config SPI_OMAP_UWIRE 319 tristate "OMAP1 MicroWire" 320 depends on ARCH_OMAP1 321 select SPI_BITBANG 322 help 323 This hooks up to the MicroWire controller on OMAP1 chips. 324 325config SPI_OMAP24XX 326 tristate "McSPI driver for OMAP" 327 depends on HAS_DMA 328 depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH 329 depends on ARCH_OMAP2PLUS || COMPILE_TEST 330 help 331 SPI master controller for OMAP24XX and later Multichannel SPI 332 (McSPI) modules. 333 334config SPI_TI_QSPI 335 tristate "DRA7xxx QSPI controller support" 336 depends on ARCH_OMAP2PLUS || COMPILE_TEST 337 help 338 QSPI master controller for DRA7xxx used for flash devices. 339 This device supports single, dual and quad read support, while 340 it only supports single write mode. 341 342config SPI_OMAP_100K 343 tristate "OMAP SPI 100K" 344 depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST 345 help 346 OMAP SPI 100K master controller for omap7xx boards. 347 348config SPI_ORION 349 tristate "Orion SPI master" 350 depends on PLAT_ORION || COMPILE_TEST 351 help 352 This enables using the SPI master controller on the Orion chips. 353 354config SPI_PL022 355 tristate "ARM AMBA PL022 SSP controller" 356 depends on ARM_AMBA 357 default y if MACH_U300 358 default y if ARCH_REALVIEW 359 default y if INTEGRATOR_IMPD1 360 default y if ARCH_VERSATILE 361 help 362 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 363 controller. If you have an embedded system with an AMBA(R) 364 bus and a PL022 controller, say Y or M here. 365 366config SPI_PPC4xx 367 tristate "PPC4xx SPI Controller" 368 depends on PPC32 && 4xx 369 select SPI_BITBANG 370 help 371 This selects a driver for the PPC4xx SPI Controller. 372 373config SPI_PXA2XX_PXADMA 374 bool "PXA2xx SSP legacy PXA DMA API support" 375 depends on SPI_PXA2XX && ARCH_PXA 376 help 377 Enable PXA private legacy DMA API support. Note that this is 378 deprecated in favor of generic DMA engine API. 379 380config SPI_PXA2XX_DMA 381 def_bool y 382 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA 383 384config SPI_PXA2XX 385 tristate "PXA2xx SSP SPI master" 386 depends on (ARCH_PXA || PCI || ACPI) 387 select PXA_SSP if ARCH_PXA 388 help 389 This enables using a PXA2xx or Sodaville SSP port as a SPI master 390 controller. The driver can be configured to use any SSP port and 391 additional documentation can be found a Documentation/spi/pxa2xx. 392 393config SPI_PXA2XX_PCI 394 def_tristate SPI_PXA2XX && PCI && COMMON_CLK 395 396config SPI_ROCKCHIP 397 tristate "Rockchip SPI controller driver" 398 depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH 399 help 400 This selects a driver for Rockchip SPI controller. 401 402 If you say yes to this option, support will be included for 403 RK3066, RK3188 and RK3288 families of SPI controller. 404 Rockchip SPI controller support DMA transport and PIO mode. 405 The main usecase of this controller is to use spi flash as boot 406 device. 407 408config SPI_RSPI 409 tristate "Renesas RSPI/QSPI controller" 410 depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST 411 help 412 SPI driver for Renesas RSPI and QSPI blocks. 413 414config SPI_QUP 415 tristate "Qualcomm SPI controller with QUP interface" 416 depends on ARCH_QCOM || (ARM && COMPILE_TEST) 417 help 418 Qualcomm Universal Peripheral (QUP) core is an AHB slave that 419 provides a common data path (an output FIFO and an input FIFO) 420 for serial peripheral interface (SPI) mini-core. SPI in master 421 mode supports up to 50MHz, up to four chip selects, programmable 422 data path from 4 bits to 32 bits and numerous protocol variants. 423 424 This driver can also be built as a module. If so, the module 425 will be called spi_qup. 426 427config SPI_S3C24XX 428 tristate "Samsung S3C24XX series SPI" 429 depends on ARCH_S3C24XX 430 select SPI_BITBANG 431 help 432 SPI driver for Samsung S3C24XX series ARM SoCs 433 434config SPI_S3C24XX_FIQ 435 bool "S3C24XX driver with FIQ pseudo-DMA" 436 depends on SPI_S3C24XX 437 select FIQ 438 help 439 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 440 DMA by using the fast-interrupt request framework, This allows 441 the driver to get DMA-like performance when there are either 442 no free DMA channels, or when doing transfers that required both 443 TX and RX data paths. 444 445config SPI_S3C64XX 446 tristate "Samsung S3C64XX series type SPI" 447 depends on PLAT_SAMSUNG 448 select S3C64XX_PL080 if ARCH_S3C64XX 449 help 450 SPI driver for Samsung S3C64XX and newer SoCs. 451 452config SPI_SC18IS602 453 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 454 depends on I2C 455 help 456 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 457 458config SPI_SH_MSIOF 459 tristate "SuperH MSIOF SPI controller" 460 depends on HAVE_CLK && HAS_DMA 461 depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST 462 help 463 SPI driver for SuperH and SH Mobile MSIOF blocks. 464 465config SPI_SH 466 tristate "SuperH SPI controller" 467 depends on SUPERH || COMPILE_TEST 468 help 469 SPI driver for SuperH SPI blocks. 470 471config SPI_SH_SCI 472 tristate "SuperH SCI SPI controller" 473 depends on SUPERH 474 select SPI_BITBANG 475 help 476 SPI driver for SuperH SCI blocks. 477 478config SPI_SH_HSPI 479 tristate "SuperH HSPI controller" 480 depends on ARCH_SHMOBILE || COMPILE_TEST 481 help 482 SPI driver for SuperH HSPI blocks. 483 484config SPI_SIRF 485 tristate "CSR SiRFprimaII SPI controller" 486 depends on SIRF_DMA 487 select SPI_BITBANG 488 help 489 SPI driver for CSR SiRFprimaII SoCs 490 491config SPI_SUN4I 492 tristate "Allwinner A10 SoCs SPI controller" 493 depends on ARCH_SUNXI || COMPILE_TEST 494 help 495 SPI driver for Allwinner sun4i, sun5i and sun7i SoCs 496 497config SPI_SUN6I 498 tristate "Allwinner A31 SPI controller" 499 depends on ARCH_SUNXI || COMPILE_TEST 500 depends on RESET_CONTROLLER 501 help 502 This enables using the SPI controller on the Allwinner A31 SoCs. 503 504config SPI_MXS 505 tristate "Freescale MXS SPI controller" 506 depends on ARCH_MXS 507 select STMP_DEVICE 508 help 509 SPI driver for Freescale MXS devices. 510 511config SPI_TEGRA114 512 tristate "NVIDIA Tegra114 SPI Controller" 513 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 514 depends on RESET_CONTROLLER && HAS_DMA 515 help 516 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller 517 is different than the older SoCs SPI controller and also register interface 518 get changed with this controller. 519 520config SPI_TEGRA20_SFLASH 521 tristate "Nvidia Tegra20 Serial flash Controller" 522 depends on ARCH_TEGRA || COMPILE_TEST 523 depends on RESET_CONTROLLER 524 help 525 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 526 The main usecase of this controller is to use spi flash as boot 527 device. 528 529config SPI_TEGRA20_SLINK 530 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 531 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 532 depends on RESET_CONTROLLER && HAS_DMA 533 help 534 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 535 536config SPI_TOPCLIFF_PCH 537 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 538 depends on PCI && (X86_32 || COMPILE_TEST) 539 help 540 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 541 used in some x86 embedded processors. 542 543 This driver also supports the ML7213/ML7223/ML7831, a companion chip 544 for the Atom E6xx series and compatible with the Intel EG20T PCH. 545 546config SPI_TXX9 547 tristate "Toshiba TXx9 SPI controller" 548 depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST) 549 help 550 SPI driver for Toshiba TXx9 MIPS SoCs 551 552config SPI_XCOMM 553 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 554 depends on I2C 555 help 556 Support for the SPI-I2C bridge found on the Analog Devices 557 AD-FMCOMMS1-EBZ board. 558 559config SPI_XILINX 560 tristate "Xilinx SPI controller common module" 561 depends on HAS_IOMEM 562 select SPI_BITBANG 563 help 564 This exposes the SPI controller IP from the Xilinx EDK. 565 566 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 567 Product Specification document (DS464) for hardware details. 568 569 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 570 571config SPI_XTENSA_XTFPGA 572 tristate "Xtensa SPI controller for xtfpga" 573 depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST 574 select SPI_BITBANG 575 help 576 SPI driver for xtfpga SPI master controller. 577 578 This simple SPI master controller is built into xtfpga bitstreams 579 and is used to control daughterboard audio codec. It always transfers 580 16 bit words in SPI mode 0, automatically asserting CS on transfer 581 start and deasserting on end. 582 583 584config SPI_NUC900 585 tristate "Nuvoton NUC900 series SPI" 586 depends on ARCH_W90X900 587 select SPI_BITBANG 588 help 589 SPI driver for Nuvoton NUC900 series ARM SoCs 590 591# 592# Add new SPI master controllers in alphabetical order above this line 593# 594 595config SPI_DESIGNWARE 596 tristate "DesignWare SPI controller core support" 597 help 598 general driver for SPI controller core from DesignWare 599 600config SPI_DW_PCI 601 tristate "PCI interface driver for DW SPI core" 602 depends on SPI_DESIGNWARE && PCI 603 604config SPI_DW_MID_DMA 605 bool "DMA support for DW SPI controller on Intel MID platform" 606 depends on SPI_DW_PCI && INTEL_MID_DMAC 607 608config SPI_DW_MMIO 609 tristate "Memory-mapped io interface driver for DW SPI core" 610 depends on SPI_DESIGNWARE 611 612# 613# There are lots of SPI device types, with sensors and memory 614# being probably the most widely used ones. 615# 616comment "SPI Protocol Masters" 617 618config SPI_SPIDEV 619 tristate "User mode SPI device driver support" 620 help 621 This supports user mode SPI protocol drivers. 622 623 Note that this application programming interface is EXPERIMENTAL 624 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 625 626config SPI_TLE62X0 627 tristate "Infineon TLE62X0 (for power switching)" 628 depends on SYSFS 629 help 630 SPI driver for Infineon TLE62X0 series line driver chips, 631 such as the TLE6220, TLE6230 and TLE6240. This provides a 632 sysfs interface, with each line presented as a kind of GPIO 633 exposing both switch control and diagnostic feedback. 634 635# 636# Add new SPI protocol masters in alphabetical order above this line 637# 638 639endif # SPI_MASTER 640 641# (slave support would go here) 642 643endif # SPI 644