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_IMG_SPFI 229 tristate "IMG SPFI controller" 230 depends on MIPS || COMPILE_TEST 231 help 232 This enables support for the SPFI master controller found on 233 IMG SoCs. 234 235config SPI_IMX 236 tristate "Freescale i.MX SPI controllers" 237 depends on ARCH_MXC || COMPILE_TEST 238 select SPI_BITBANG 239 help 240 This enables using the Freescale i.MX SPI controllers in master 241 mode. 242 243config SPI_LM70_LLP 244 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 245 depends on PARPORT 246 select SPI_BITBANG 247 help 248 This driver supports the NS LM70 LLP Evaluation Board, 249 which interfaces to an LM70 temperature sensor using 250 a parallel port. 251 252config SPI_MPC52xx 253 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 254 depends on PPC_MPC52xx 255 help 256 This drivers supports the MPC52xx SPI controller in master SPI 257 mode. 258 259config SPI_MPC52xx_PSC 260 tristate "Freescale MPC52xx PSC SPI controller" 261 depends on PPC_MPC52xx 262 help 263 This enables using the Freescale MPC52xx Programmable Serial 264 Controller in master SPI mode. 265 266config SPI_MPC512x_PSC 267 tristate "Freescale MPC512x PSC SPI controller" 268 depends on PPC_MPC512x 269 help 270 This enables using the Freescale MPC5121 Programmable Serial 271 Controller in SPI master mode. 272 273config SPI_FSL_LIB 274 tristate 275 depends on OF 276 277config SPI_FSL_CPM 278 tristate 279 depends on FSL_SOC 280 281config SPI_FSL_SPI 282 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 283 depends on OF 284 select SPI_FSL_LIB 285 select SPI_FSL_CPM if FSL_SOC 286 help 287 This enables using the Freescale SPI controllers in master mode. 288 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 289 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 290 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 291 master mode. 292 293config SPI_FSL_DSPI 294 tristate "Freescale DSPI controller" 295 select SPI_BITBANG 296 select REGMAP_MMIO 297 depends on SOC_VF610 || COMPILE_TEST 298 help 299 This enables support for the Freescale DSPI controller in master 300 mode. VF610 platform uses the controller. 301 302config SPI_FSL_ESPI 303 bool "Freescale eSPI controller" 304 depends on FSL_SOC 305 select SPI_FSL_LIB 306 help 307 This enables using the Freescale eSPI controllers in master mode. 308 From MPC8536, 85xx platform uses the controller, and all P10xx, 309 P20xx, P30xx,P40xx, P50xx uses this controller. 310 311config SPI_MESON_SPIFC 312 tristate "Amlogic Meson SPIFC controller" 313 depends on ARCH_MESON || COMPILE_TEST 314 select REGMAP_MMIO 315 help 316 This enables master mode support for the SPIFC (SPI flash 317 controller) available in Amlogic Meson SoCs. 318 319config SPI_OC_TINY 320 tristate "OpenCores tiny SPI" 321 depends on GPIOLIB 322 select SPI_BITBANG 323 help 324 This is the driver for OpenCores tiny SPI master controller. 325 326config SPI_OCTEON 327 tristate "Cavium OCTEON SPI controller" 328 depends on CAVIUM_OCTEON_SOC 329 help 330 SPI host driver for the hardware found on some Cavium OCTEON 331 SOCs. 332 333config SPI_OMAP_UWIRE 334 tristate "OMAP1 MicroWire" 335 depends on ARCH_OMAP1 336 select SPI_BITBANG 337 help 338 This hooks up to the MicroWire controller on OMAP1 chips. 339 340config SPI_OMAP24XX 341 tristate "McSPI driver for OMAP" 342 depends on HAS_DMA 343 depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH 344 depends on ARCH_OMAP2PLUS || COMPILE_TEST 345 help 346 SPI master controller for OMAP24XX and later Multichannel SPI 347 (McSPI) modules. 348 349config SPI_TI_QSPI 350 tristate "DRA7xxx QSPI controller support" 351 depends on ARCH_OMAP2PLUS || COMPILE_TEST 352 help 353 QSPI master controller for DRA7xxx used for flash devices. 354 This device supports single, dual and quad read support, while 355 it only supports single write mode. 356 357config SPI_OMAP_100K 358 tristate "OMAP SPI 100K" 359 depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST 360 help 361 OMAP SPI 100K master controller for omap7xx boards. 362 363config SPI_ORION 364 tristate "Orion SPI master" 365 depends on PLAT_ORION || COMPILE_TEST 366 help 367 This enables using the SPI master controller on the Orion chips. 368 369config SPI_PL022 370 tristate "ARM AMBA PL022 SSP controller" 371 depends on ARM_AMBA 372 default y if MACH_U300 373 default y if ARCH_REALVIEW 374 default y if INTEGRATOR_IMPD1 375 default y if ARCH_VERSATILE 376 help 377 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 378 controller. If you have an embedded system with an AMBA(R) 379 bus and a PL022 controller, say Y or M here. 380 381config SPI_PPC4xx 382 tristate "PPC4xx SPI Controller" 383 depends on PPC32 && 4xx 384 select SPI_BITBANG 385 help 386 This selects a driver for the PPC4xx SPI Controller. 387 388config SPI_PXA2XX_PXADMA 389 bool "PXA2xx SSP legacy PXA DMA API support" 390 depends on SPI_PXA2XX && ARCH_PXA 391 help 392 Enable PXA private legacy DMA API support. Note that this is 393 deprecated in favor of generic DMA engine API. 394 395config SPI_PXA2XX_DMA 396 def_bool y 397 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA 398 399config SPI_PXA2XX 400 tristate "PXA2xx SSP SPI master" 401 depends on (ARCH_PXA || PCI || ACPI) 402 select PXA_SSP if ARCH_PXA 403 help 404 This enables using a PXA2xx or Sodaville SSP port as a SPI master 405 controller. The driver can be configured to use any SSP port and 406 additional documentation can be found a Documentation/spi/pxa2xx. 407 408config SPI_PXA2XX_PCI 409 def_tristate SPI_PXA2XX && PCI && COMMON_CLK 410 411config SPI_ROCKCHIP 412 tristate "Rockchip SPI controller driver" 413 depends on ARM || ARM64 || AVR32 || HEXAGON || MIPS || SUPERH 414 help 415 This selects a driver for Rockchip SPI controller. 416 417 If you say yes to this option, support will be included for 418 RK3066, RK3188 and RK3288 families of SPI controller. 419 Rockchip SPI controller support DMA transport and PIO mode. 420 The main usecase of this controller is to use spi flash as boot 421 device. 422 423config SPI_RSPI 424 tristate "Renesas RSPI/QSPI controller" 425 depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST 426 help 427 SPI driver for Renesas RSPI and QSPI blocks. 428 429config SPI_QUP 430 tristate "Qualcomm SPI controller with QUP interface" 431 depends on ARCH_QCOM || (ARM && COMPILE_TEST) 432 help 433 Qualcomm Universal Peripheral (QUP) core is an AHB slave that 434 provides a common data path (an output FIFO and an input FIFO) 435 for serial peripheral interface (SPI) mini-core. SPI in master 436 mode supports up to 50MHz, up to four chip selects, programmable 437 data path from 4 bits to 32 bits and numerous protocol variants. 438 439 This driver can also be built as a module. If so, the module 440 will be called spi_qup. 441 442config SPI_S3C24XX 443 tristate "Samsung S3C24XX series SPI" 444 depends on ARCH_S3C24XX 445 select SPI_BITBANG 446 help 447 SPI driver for Samsung S3C24XX series ARM SoCs 448 449config SPI_S3C24XX_FIQ 450 bool "S3C24XX driver with FIQ pseudo-DMA" 451 depends on SPI_S3C24XX 452 select FIQ 453 help 454 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 455 DMA by using the fast-interrupt request framework, This allows 456 the driver to get DMA-like performance when there are either 457 no free DMA channels, or when doing transfers that required both 458 TX and RX data paths. 459 460config SPI_S3C64XX 461 tristate "Samsung S3C64XX series type SPI" 462 depends on (PLAT_SAMSUNG || ARCH_EXYNOS) 463 select S3C64XX_PL080 if ARCH_S3C64XX 464 help 465 SPI driver for Samsung S3C64XX and newer SoCs. 466 467config SPI_SC18IS602 468 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 469 depends on I2C 470 help 471 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 472 473config SPI_SH_MSIOF 474 tristate "SuperH MSIOF SPI controller" 475 depends on HAVE_CLK && HAS_DMA 476 depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST 477 help 478 SPI driver for SuperH and SH Mobile MSIOF blocks. 479 480config SPI_SH 481 tristate "SuperH SPI controller" 482 depends on SUPERH || COMPILE_TEST 483 help 484 SPI driver for SuperH SPI blocks. 485 486config SPI_SH_SCI 487 tristate "SuperH SCI SPI controller" 488 depends on SUPERH 489 select SPI_BITBANG 490 help 491 SPI driver for SuperH SCI blocks. 492 493config SPI_SH_HSPI 494 tristate "SuperH HSPI controller" 495 depends on ARCH_SHMOBILE || COMPILE_TEST 496 help 497 SPI driver for SuperH HSPI blocks. 498 499config SPI_SIRF 500 tristate "CSR SiRFprimaII SPI controller" 501 depends on SIRF_DMA 502 select SPI_BITBANG 503 help 504 SPI driver for CSR SiRFprimaII SoCs 505 506config SPI_SUN4I 507 tristate "Allwinner A10 SoCs SPI controller" 508 depends on ARCH_SUNXI || COMPILE_TEST 509 help 510 SPI driver for Allwinner sun4i, sun5i and sun7i SoCs 511 512config SPI_SUN6I 513 tristate "Allwinner A31 SPI controller" 514 depends on ARCH_SUNXI || COMPILE_TEST 515 depends on RESET_CONTROLLER 516 help 517 This enables using the SPI controller on the Allwinner A31 SoCs. 518 519config SPI_MXS 520 tristate "Freescale MXS SPI controller" 521 depends on ARCH_MXS 522 select STMP_DEVICE 523 help 524 SPI driver for Freescale MXS devices. 525 526config SPI_TEGRA114 527 tristate "NVIDIA Tegra114 SPI Controller" 528 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 529 depends on RESET_CONTROLLER && HAS_DMA 530 help 531 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller 532 is different than the older SoCs SPI controller and also register interface 533 get changed with this controller. 534 535config SPI_TEGRA20_SFLASH 536 tristate "Nvidia Tegra20 Serial flash Controller" 537 depends on ARCH_TEGRA || COMPILE_TEST 538 depends on RESET_CONTROLLER 539 help 540 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 541 The main usecase of this controller is to use spi flash as boot 542 device. 543 544config SPI_TEGRA20_SLINK 545 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 546 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST 547 depends on RESET_CONTROLLER && HAS_DMA 548 help 549 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 550 551config SPI_TOPCLIFF_PCH 552 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 553 depends on PCI && (X86_32 || COMPILE_TEST) 554 help 555 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 556 used in some x86 embedded processors. 557 558 This driver also supports the ML7213/ML7223/ML7831, a companion chip 559 for the Atom E6xx series and compatible with the Intel EG20T PCH. 560 561config SPI_TXX9 562 tristate "Toshiba TXx9 SPI controller" 563 depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST) 564 help 565 SPI driver for Toshiba TXx9 MIPS SoCs 566 567config SPI_XCOMM 568 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 569 depends on I2C 570 help 571 Support for the SPI-I2C bridge found on the Analog Devices 572 AD-FMCOMMS1-EBZ board. 573 574config SPI_XILINX 575 tristate "Xilinx SPI controller common module" 576 depends on HAS_IOMEM 577 select SPI_BITBANG 578 help 579 This exposes the SPI controller IP from the Xilinx EDK. 580 581 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 582 Product Specification document (DS464) for hardware details. 583 584 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 585 586config SPI_XTENSA_XTFPGA 587 tristate "Xtensa SPI controller for xtfpga" 588 depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST 589 select SPI_BITBANG 590 help 591 SPI driver for xtfpga SPI master controller. 592 593 This simple SPI master controller is built into xtfpga bitstreams 594 and is used to control daughterboard audio codec. It always transfers 595 16 bit words in SPI mode 0, automatically asserting CS on transfer 596 start and deasserting on end. 597 598 599config SPI_NUC900 600 tristate "Nuvoton NUC900 series SPI" 601 depends on ARCH_W90X900 602 select SPI_BITBANG 603 help 604 SPI driver for Nuvoton NUC900 series ARM SoCs 605 606# 607# Add new SPI master controllers in alphabetical order above this line 608# 609 610config SPI_DESIGNWARE 611 tristate "DesignWare SPI controller core support" 612 help 613 general driver for SPI controller core from DesignWare 614 615config SPI_DW_PCI 616 tristate "PCI interface driver for DW SPI core" 617 depends on SPI_DESIGNWARE && PCI 618 619config SPI_DW_MID_DMA 620 bool "DMA support for DW SPI controller on Intel MID platform" 621 depends on SPI_DW_PCI && INTEL_MID_DMAC 622 623config SPI_DW_MMIO 624 tristate "Memory-mapped io interface driver for DW SPI core" 625 depends on SPI_DESIGNWARE 626 627# 628# There are lots of SPI device types, with sensors and memory 629# being probably the most widely used ones. 630# 631comment "SPI Protocol Masters" 632 633config SPI_SPIDEV 634 tristate "User mode SPI device driver support" 635 help 636 This supports user mode SPI protocol drivers. 637 638 Note that this application programming interface is EXPERIMENTAL 639 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 640 641config SPI_TLE62X0 642 tristate "Infineon TLE62X0 (for power switching)" 643 depends on SYSFS 644 help 645 SPI driver for Infineon TLE62X0 series line driver chips, 646 such as the TLE6220, TLE6230 and TLE6240. This provides a 647 sysfs interface, with each line presented as a kind of GPIO 648 exposing both switch control and diagnostic feedback. 649 650# 651# Add new SPI protocol masters in alphabetical order above this line 652# 653 654endif # SPI_MASTER 655 656# (slave support would go here) 657 658endif # SPI 659