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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
40
41
42config SPI_MASTER
43
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_BITBANG
122 tristate "Utilities for Bitbanging SPI masters"
123 help
124 With a few GPIO pins, your system can bitbang the SPI protocol.
125 Select this to get SPI support through I/O pins (GPIO, parallel
126 port, etc). Or, some systems' SPI master controller drivers use
127 this code to manage the per-word or per-transfer accesses to the
128 hardware shift registers.
129
130 This is library code, and is automatically selected by drivers that
131 need it. You only need to select this explicitly to support driver
132 modules that aren't part of this kernel tree.
133
134config SPI_BUTTERFLY
135 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
136 depends on PARPORT
137 select SPI_BITBANG
138 help
139 This uses a custom parallel port cable to connect to an AVR
140 Butterfly <http://www.atmel.com/products/avr/butterfly>, an
141 inexpensive battery powered microcontroller evaluation board.
142 This same cable can be used to flash new firmware.
143
144config SPI_CLPS711X
145 tristate "CLPS711X host SPI controller"
146 depends on ARCH_CLPS711X
147 help
148 This enables dedicated general purpose SPI/Microwire1-compatible
149 master mode interface (SSI1) for CLPS711X-based CPUs.
150
151config SPI_COLDFIRE_QSPI
152 tristate "Freescale Coldfire QSPI controller"
153 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
154 help
155 This enables support for the Coldfire QSPI controller in master
156 mode.
157
158config SPI_DAVINCI
159 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
160 depends on ARCH_DAVINCI || ARCH_KEYSTONE
161 select SPI_BITBANG
162 select TI_EDMA
163 help
164 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
165
166config SPI_EFM32
167 tristate "EFM32 SPI controller"
168 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
169 select SPI_BITBANG
170 help
171 Driver for the spi controller found on Energy Micro's EFM32 SoCs.
172
173config SPI_EP93XX
174 tristate "Cirrus Logic EP93xx SPI controller"
175 depends on ARCH_EP93XX || COMPILE_TEST
176 help
177 This enables using the Cirrus EP93xx SPI controller in master
178 mode.
179
180config SPI_FALCON
181 tristate "Falcon SPI controller support"
182 depends on SOC_FALCON
183 help
184 The external bus unit (EBU) found on the FALC-ON SoC has SPI
185 emulation that is designed for serial flash access. This driver
186 has only been tested with m25p80 type chips. The hardware has no
187 support for other types of SPI peripherals.
188
189config SPI_GPIO
190 tristate "GPIO-based bitbanging SPI Master"
191 depends on GPIOLIB
192 select SPI_BITBANG
193 help
194 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
195 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
196 slaves connected to a bus using this driver are configured as usual,
197 except that the spi_board_info.controller_data holds the GPIO number
198 for the chipselect used by this controller driver.
199
200 Note that this driver often won't achieve even 1 Mbit/sec speeds,
201 making it unusually slow for SPI. If your platform can inline
202 GPIO operations, you should be able to leverage that for better
203 speed with a custom version of this driver; see the source code.
204
205config SPI_IMX
206 tristate "Freescale i.MX SPI controllers"
207 depends on ARCH_MXC || COMPILE_TEST
208 select SPI_BITBANG
209 default m if IMX_HAVE_PLATFORM_SPI_IMX
210 help
211 This enables using the Freescale i.MX SPI controllers in master
212 mode.
213
214config SPI_LM70_LLP
215 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
216 depends on PARPORT
217 select SPI_BITBANG
218 help
219 This driver supports the NS LM70 LLP Evaluation Board,
220 which interfaces to an LM70 temperature sensor using
221 a parallel port.
222
223config SPI_MPC52xx
224 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
225 depends on PPC_MPC52xx
226 help
227 This drivers supports the MPC52xx SPI controller in master SPI
228 mode.
229
230config SPI_MPC52xx_PSC
231 tristate "Freescale MPC52xx PSC SPI controller"
232 depends on PPC_MPC52xx
233 help
234 This enables using the Freescale MPC52xx Programmable Serial
235 Controller in master SPI mode.
236
237config SPI_MPC512x_PSC
238 tristate "Freescale MPC512x PSC SPI controller"
239 depends on PPC_MPC512x
240 help
241 This enables using the Freescale MPC5121 Programmable Serial
242 Controller in SPI master mode.
243
244config SPI_FSL_LIB
245 tristate
246 depends on OF
247
248config SPI_FSL_CPM
249 tristate
250 depends on FSL_SOC
251
252config SPI_FSL_SPI
253 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller"
254 depends on OF
255 select SPI_FSL_LIB
256 select SPI_FSL_CPM if FSL_SOC
257 help
258 This enables using the Freescale SPI controllers in master mode.
259 MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
260 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
261 This also enables using the Aeroflex Gaisler GRLIB SPI controller in
262 master mode.
263
264config SPI_FSL_DSPI
265 tristate "Freescale DSPI controller"
266 select SPI_BITBANG
267 help
268 This enables support for the Freescale DSPI controller in master
269 mode. VF610 platform uses the controller.
270
271config SPI_FSL_ESPI
272 bool "Freescale eSPI controller"
273 depends on FSL_SOC
274 select SPI_FSL_LIB
275 help
276 This enables using the Freescale eSPI controllers in master mode.
277 From MPC8536, 85xx platform uses the controller, and all P10xx,
278 P20xx, P30xx,P40xx, P50xx uses this controller.
279
280config SPI_OC_TINY
281 tristate "OpenCores tiny SPI"
282 depends on GPIOLIB
283 select SPI_BITBANG
284 help
285 This is the driver for OpenCores tiny SPI master controller.
286
287config SPI_OCTEON
288 tristate "Cavium OCTEON SPI controller"
289 depends on CAVIUM_OCTEON_SOC
290 help
291 SPI host driver for the hardware found on some Cavium OCTEON
292 SOCs.
293
294config SPI_OMAP_UWIRE
295 tristate "OMAP1 MicroWire"
296 depends on ARCH_OMAP1
297 select SPI_BITBANG
298 help
299 This hooks up to the MicroWire controller on OMAP1 chips.
300
301config SPI_OMAP24XX
302 tristate "McSPI driver for OMAP"
303 depends on ARCH_OMAP2PLUS || COMPILE_TEST
304 help
305 SPI master controller for OMAP24XX and later Multichannel SPI
306 (McSPI) modules.
307
308config SPI_TI_QSPI
309 tristate "DRA7xxx QSPI controller support"
310 depends on ARCH_OMAP2PLUS || COMPILE_TEST
311 help
312 QSPI master controller for DRA7xxx used for flash devices.
313 This device supports single, dual and quad read support, while
314 it only supports single write mode.
315
316config SPI_OMAP_100K
317 tristate "OMAP SPI 100K"
318 depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST
319 help
320 OMAP SPI 100K master controller for omap7xx boards.
321
322config SPI_ORION
323 tristate "Orion SPI master"
324 depends on PLAT_ORION || COMPILE_TEST
325 help
326 This enables using the SPI master controller on the Orion chips.
327
328config SPI_PL022
329 tristate "ARM AMBA PL022 SSP controller"
330 depends on ARM_AMBA
331 default y if MACH_U300
332 default y if ARCH_REALVIEW
333 default y if INTEGRATOR_IMPD1
334 default y if ARCH_VERSATILE
335 help
336 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
337 controller. If you have an embedded system with an AMBA(R)
338 bus and a PL022 controller, say Y or M here.
339
340config SPI_PPC4xx
341 tristate "PPC4xx SPI Controller"
342 depends on PPC32 && 4xx
343 select SPI_BITBANG
344 help
345 This selects a driver for the PPC4xx SPI Controller.
346
347config SPI_PXA2XX_PXADMA
348 bool "PXA2xx SSP legacy PXA DMA API support"
349 depends on SPI_PXA2XX && ARCH_PXA
350 help
351 Enable PXA private legacy DMA API support. Note that this is
352 deprecated in favor of generic DMA engine API.
353
354config SPI_PXA2XX_DMA
355 def_bool y
356 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA
357
358config SPI_PXA2XX
359 tristate "PXA2xx SSP SPI master"
360 depends on (ARCH_PXA || PCI || ACPI)
361 select PXA_SSP if ARCH_PXA
362 help
363 This enables using a PXA2xx or Sodaville SSP port as a SPI master
364 controller. The driver can be configured to use any SSP port and
365 additional documentation can be found a Documentation/spi/pxa2xx.
366
367config SPI_PXA2XX_PCI
368 def_tristate SPI_PXA2XX && PCI
369
370config SPI_RSPI
371 tristate "Renesas RSPI controller"
372 depends on SUPERH && SH_DMAE_BASE
373 help
374 SPI driver for Renesas RSPI blocks.
375
376config SPI_S3C24XX
377 tristate "Samsung S3C24XX series SPI"
378 depends on ARCH_S3C24XX
379 select SPI_BITBANG
380 help
381 SPI driver for Samsung S3C24XX series ARM SoCs
382
383config SPI_S3C24XX_FIQ
384 bool "S3C24XX driver with FIQ pseudo-DMA"
385 depends on SPI_S3C24XX
386 select FIQ
387 help
388 Enable FIQ support for the S3C24XX SPI driver to provide pseudo
389 DMA by using the fast-interrupt request framework, This allows
390 the driver to get DMA-like performance when there are either
391 no free DMA channels, or when doing transfers that required both
392 TX and RX data paths.
393
394config SPI_S3C64XX
395 tristate "Samsung S3C64XX series type SPI"
396 depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS)
397 select S3C64XX_DMA if ARCH_S3C64XX
398 help
399 SPI driver for Samsung S3C64XX and newer SoCs.
400
401config SPI_SC18IS602
402 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
403 depends on I2C
404 help
405 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
406
407config SPI_SH_MSIOF
408 tristate "SuperH MSIOF SPI controller"
409 depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK
410 select SPI_BITBANG
411 help
412 SPI driver for SuperH and SH Mobile MSIOF blocks.
413
414config SPI_SH
415 tristate "SuperH SPI controller"
416 depends on SUPERH || COMPILE_TEST
417 help
418 SPI driver for SuperH SPI blocks.
419
420config SPI_SH_SCI
421 tristate "SuperH SCI SPI controller"
422 depends on SUPERH
423 select SPI_BITBANG
424 help
425 SPI driver for SuperH SCI blocks.
426
427config SPI_SH_HSPI
428 tristate "SuperH HSPI controller"
429 depends on ARCH_SHMOBILE || COMPILE_TEST
430 help
431 SPI driver for SuperH HSPI blocks.
432
433config SPI_SIRF
434 tristate "CSR SiRFprimaII SPI controller"
435 depends on SIRF_DMA
436 select SPI_BITBANG
437 help
438 SPI driver for CSR SiRFprimaII SoCs
439
440config SPI_MXS
441 tristate "Freescale MXS SPI controller"
442 depends on ARCH_MXS
443 select STMP_DEVICE
444 help
445 SPI driver for Freescale MXS devices.
446
447config SPI_TEGRA114
448 tristate "NVIDIA Tegra114 SPI Controller"
449 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
450 help
451 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller
452 is different than the older SoCs SPI controller and also register interface
453 get changed with this controller.
454
455config SPI_TEGRA20_SFLASH
456 tristate "Nvidia Tegra20 Serial flash Controller"
457 depends on ARCH_TEGRA || COMPILE_TEST
458 help
459 SPI driver for Nvidia Tegra20 Serial flash Controller interface.
460 The main usecase of this controller is to use spi flash as boot
461 device.
462
463config SPI_TEGRA20_SLINK
464 tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
465 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
466 help
467 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
468
469config SPI_TI_SSP
470 tristate "TI Sequencer Serial Port - SPI Support"
471 depends on MFD_TI_SSP
472 help
473 This selects an SPI master implementation using a TI sequencer
474 serial port.
475
476config SPI_TOPCLIFF_PCH
477 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
478 depends on PCI
479 help
480 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
481 used in some x86 embedded processors.
482
483 This driver also supports the ML7213/ML7223/ML7831, a companion chip
484 for the Atom E6xx series and compatible with the Intel EG20T PCH.
485
486config SPI_TXX9
487 tristate "Toshiba TXx9 SPI controller"
488 depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST)
489 help
490 SPI driver for Toshiba TXx9 MIPS SoCs
491
492config SPI_XCOMM
493 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
494 depends on I2C
495 help
496 Support for the SPI-I2C bridge found on the Analog Devices
497 AD-FMCOMMS1-EBZ board.
498
499config SPI_XILINX
500 tristate "Xilinx SPI controller common module"
501 depends on HAS_IOMEM
502 select SPI_BITBANG
503 help
504 This exposes the SPI controller IP from the Xilinx EDK.
505
506 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
507 Product Specification document (DS464) for hardware details.
508
509 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
510
511config SPI_NUC900
512 tristate "Nuvoton NUC900 series SPI"
513 depends on ARCH_W90X900
514 select SPI_BITBANG
515 help
516 SPI driver for Nuvoton NUC900 series ARM SoCs
517
518
519
520
521
522config SPI_DESIGNWARE
523 tristate "DesignWare SPI controller core support"
524 help
525 general driver for SPI controller core from DesignWare
526
527config SPI_DW_PCI
528 tristate "PCI interface driver for DW SPI core"
529 depends on SPI_DESIGNWARE && PCI
530
531config SPI_DW_MID_DMA
532 bool "DMA support for DW SPI controller on Intel Moorestown platform"
533 depends on SPI_DW_PCI && INTEL_MID_DMAC
534
535config SPI_DW_MMIO
536 tristate "Memory-mapped io interface driver for DW SPI core"
537 depends on SPI_DESIGNWARE && HAVE_CLK
538
539
540
541
542
543comment "SPI Protocol Masters"
544
545config SPI_SPIDEV
546 tristate "User mode SPI device driver support"
547 help
548 This supports user mode SPI protocol drivers.
549
550 Note that this application programming interface is EXPERIMENTAL
551 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
552
553config SPI_TLE62X0
554 tristate "Infineon TLE62X0 (for power switching)"
555 depends on SYSFS
556 help
557 SPI driver for Infineon TLE62X0 series line driver chips,
558 such as the TLE6220, TLE6230 and TLE6240. This provides a
559 sysfs interface, with each line presented as a kind of GPIO
560 exposing both switch control and diagnostic feedback.
561
562
563
564
565
566endif
567
568
569
570endif
571
