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1 # SPDX-License-Identifier: GPL-2.0-only
2 #
3 # SPI driver configuration
4 #
5 menuconfig SPI
6 bool "SPI support"
7 depends on HAS_IOMEM
8 help
9 The "Serial Peripheral Interface" is a low level synchronous
10 protocol. Chips that support SPI can have data transfer rates
11 up to several tens of Mbit/sec. Chips are addressed with a
12 controller and a chipselect. Most SPI slaves don't support
13 dynamic device discovery; some are even write-only or read-only.
14
15 SPI is widely used by microcontrollers to talk with sensors,
16 eeprom and flash memory, codecs and various other controller
17 chips, analog to digital (and d-to-a) converters, and more.
18 MMC and SD cards can be accessed using SPI protocol; and for
19 DataFlash cards used in MMC sockets, SPI must always be used.
20
21 SPI is one of a family of similar protocols using a four wire
22 interface (select, clock, data in, data out) including Microwire
23 (half duplex), SSP, SSI, and PSP. This driver framework should
24 work with most such devices and controllers.
25
26 if SPI
27
28 config SPI_DEBUG
29 bool "Debug support for SPI drivers"
30 depends on DEBUG_KERNEL
31 help
32 Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
33 sysfs, and debugfs support in SPI controller and protocol drivers.
34
35 #
36 # MASTER side ... talking to discrete SPI slave chips including microcontrollers
37 #
38
39 config SPI_MASTER
40 # bool "SPI Master Support"
41 bool
42 default SPI
43 help
44 If your system has an master-capable SPI controller (which
45 provides the clock and chipselect), you can enable that
46 controller and the protocol drivers for the SPI slave chips
47 that are connected.
48
49 if SPI_MASTER
50
51 config SPI_MEM
52 bool "SPI memory extension"
53 help
54 Enable this option if you want to enable the SPI memory extension.
55 This extension is meant to simplify interaction with SPI memories
56 by providing a high-level interface to send memory-like commands.
57
58 comment "SPI Master Controller Drivers"
59
60 config SPI_ALTERA
61 tristate "Altera SPI Controller platform driver"
62 select SPI_ALTERA_CORE
63 select REGMAP_MMIO
64 help
65 This is the driver for the Altera SPI Controller.
66
67 config SPI_ALTERA_CORE
68 tristate "Altera SPI Controller core code" if COMPILE_TEST
69 select REGMAP
70 help
71 "The core code for the Altera SPI Controller"
72
73 config SPI_ALTERA_DFL
74 tristate "DFL bus driver for Altera SPI Controller"
75 depends on FPGA_DFL
76 select SPI_ALTERA_CORE
77 help
78 This is a Device Feature List (DFL) bus driver for the
79 Altera SPI master controller. The SPI master is connected
80 to a SPI slave to Avalon bridge in a Intel MAX BMC.
81
82 config SPI_AMLOGIC_SPIFC_A1
83 tristate "Amlogic A1 SPIFC controller"
84 depends on ARCH_MESON || COMPILE_TEST
85 help
86 This enables master mode support for the SPIFC (SPI flash
87 controller) available in Amlogic A1 (A113L SoC).
88
89 config SPI_AR934X
90 tristate "Qualcomm Atheros AR934X/QCA95XX SPI controller driver"
91 depends on ATH79 || COMPILE_TEST
92 help
93 This enables support for the SPI controller present on the
94 Qualcomm Atheros AR934X/QCA95XX SoCs.
95
96 config SPI_ATH79
97 tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
98 depends on ATH79 || COMPILE_TEST
99 select SPI_BITBANG
100 help
101 This enables support for the SPI controller present on the
102 Atheros AR71XX/AR724X/AR913X SoCs.
103
104 config SPI_ARMADA_3700
105 tristate "Marvell Armada 3700 SPI Controller"
106 depends on (ARCH_MVEBU && OF) || COMPILE_TEST
107 help
108 This enables support for the SPI controller present on the
109 Marvell Armada 3700 SoCs.
110
111 config SPI_ASPEED_SMC
112 tristate "Aspeed flash controllers in SPI mode"
113 depends on ARCH_ASPEED || COMPILE_TEST
114 depends on OF
115 help
116 This enables support for the Firmware Memory controller (FMC)
117 in the Aspeed AST2600, AST2500 and AST2400 SoCs when attached
118 to SPI NOR chips, and support for the SPI flash memory
119 controller (SPI) for the host firmware. The implementation
120 only supports SPI NOR.
121
122 config SPI_ATMEL
123 tristate "Atmel SPI Controller"
124 depends on ARCH_AT91 || COMPILE_TEST
125 depends on OF
126 help
127 This selects a driver for the Atmel SPI Controller, present on
128 many AT91 ARM chips.
129
130 config SPI_AT91_USART
131 tristate "Atmel USART Controller SPI driver"
132 depends on (ARCH_AT91 || COMPILE_TEST)
133 depends on MFD_AT91_USART
134 help
135 This selects a driver for the AT91 USART Controller as SPI Master,
136 present on AT91 and SAMA5 SoC series.
137
138 config SPI_ATMEL_QUADSPI
139 tristate "Atmel Quad SPI Controller"
140 depends on ARCH_AT91 || COMPILE_TEST
141 depends on OF && HAS_IOMEM
142 help
143 This enables support for the Quad SPI controller in master mode.
144 This driver does not support generic SPI. The implementation only
145 supports spi-mem interface.
146
147 config SPI_AU1550
148 tristate "Au1550/Au1200/Au1300 SPI Controller"
149 depends on MIPS_ALCHEMY
150 select SPI_BITBANG
151 help
152 If you say yes to this option, support will be included for the
153 PSC SPI controller found on Au1550, Au1200 and Au1300 series.
154
155 config SPI_AXI_SPI_ENGINE
156 tristate "Analog Devices AXI SPI Engine controller"
157 depends on HAS_IOMEM
158 help
159 This enables support for the Analog Devices AXI SPI Engine SPI controller.
160 It is part of the SPI Engine framework that is used in some Analog Devices
161 reference designs for FPGAs.
162
163 config SPI_BCM2835
164 tristate "BCM2835 SPI controller"
165 depends on GPIOLIB
166 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
167 help
168 This selects a driver for the Broadcom BCM2835 SPI master.
169
170 The BCM2835 contains two types of SPI master controller; the
171 "universal SPI master", and the regular SPI controller. This driver
172 is for the regular SPI controller. Slave mode operation is not also
173 not supported.
174
175 config SPI_BCM2835AUX
176 tristate "BCM2835 SPI auxiliary controller"
177 depends on ((ARCH_BCM2835 || ARCH_BRCMSTB) && GPIOLIB) || COMPILE_TEST
178 help
179 This selects a driver for the Broadcom BCM2835 SPI aux master.
180
181 The BCM2835 contains two types of SPI master controller; the
182 "universal SPI master", and the regular SPI controller.
183 This driver is for the universal/auxiliary SPI controller.
184
185 config SPI_BCM63XX
186 tristate "Broadcom BCM63xx SPI controller"
187 depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
188 help
189 Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
190
191 config SPI_BCM63XX_HSSPI
192 tristate "Broadcom BCM63XX HS SPI controller driver"
193 depends on BCM63XX || BMIPS_GENERIC || ARCH_BCMBCA || COMPILE_TEST
194 help
195 This enables support for the High Speed SPI controller present on
196 newer Broadcom BCM63XX SoCs.
197
198 config SPI_BCM_QSPI
199 tristate "Broadcom BSPI and MSPI controller support"
200 depends on ARCH_BRCMSTB || ARCH_BCM || ARCH_BCM_IPROC || \
201 BMIPS_GENERIC || COMPILE_TEST
202 default ARCH_BCM_IPROC
203 help
204 Enables support for the Broadcom SPI flash and MSPI controller.
205 Select this option for any one of BRCMSTB, iProc NSP and NS2 SoCs
206 based platforms. This driver works for both SPI master for SPI NOR
207 flash device as well as MSPI device.
208
209 config SPI_BCMBCA_HSSPI
210 tristate "Broadcom BCMBCA HS SPI controller driver"
211 depends on ARCH_BCMBCA || COMPILE_TEST
212 help
213 This enables support for the High Speed SPI controller present on
214 newer Broadcom BCMBCA SoCs. These SoCs include an updated SPI controller
215 that adds the capability to allow the driver to control chip select
216 explicitly.
217
218 config SPI_BITBANG
219 tristate "Utilities for Bitbanging SPI masters"
220 help
221 With a few GPIO pins, your system can bitbang the SPI protocol.
222 Select this to get SPI support through I/O pins (GPIO, parallel
223 port, etc). Or, some systems' SPI master controller drivers use
224 this code to manage the per-word or per-transfer accesses to the
225 hardware shift registers.
226
227 This is library code, and is automatically selected by drivers that
228 need it. You only need to select this explicitly to support driver
229 modules that aren't part of this kernel tree.
230
231 config SPI_BUTTERFLY
232 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
233 depends on PARPORT
234 select SPI_BITBANG
235 help
236 This uses a custom parallel port cable to connect to an AVR
237 Butterfly <http://www.atmel.com/products/avr/butterfly>, an
238 inexpensive battery powered microcontroller evaluation board.
239 This same cable can be used to flash new firmware.
240
241 config SPI_CADENCE
242 tristate "Cadence SPI controller"
243 help
244 This selects the Cadence SPI controller master driver
245 used by Xilinx Zynq and ZynqMP.
246
247 config SPI_CADENCE_QUADSPI
248 tristate "Cadence Quad SPI controller"
249 depends on OF && (ARM || ARM64 || X86 || RISCV || COMPILE_TEST)
250 help
251 Enable support for the Cadence Quad SPI Flash controller.
252
253 Cadence QSPI is a specialized controller for connecting an SPI
254 Flash over 1/2/4-bit wide bus. Enable this option if you have a
255 device with a Cadence QSPI controller and want to access the
256 Flash as an MTD device.
257
258 config SPI_CADENCE_XSPI
259 tristate "Cadence XSPI controller"
260 depends on OF && HAS_IOMEM
261 depends on SPI_MEM
262 help
263 Enable support for the Cadence XSPI Flash controller.
264
265 Cadence XSPI is a specialized controller for connecting an SPI
266 Flash over up to 8-bit wide bus. Enable this option if you have a
267 device with a Cadence XSPI controller and want to access the
268 Flash as an MTD device.
269
270 config SPI_CLPS711X
271 tristate "CLPS711X host SPI controller"
272 depends on ARCH_CLPS711X || COMPILE_TEST
273 help
274 This enables dedicated general purpose SPI/Microwire1-compatible
275 master mode interface (SSI1) for CLPS711X-based CPUs.
276
277 config SPI_COLDFIRE_QSPI
278 tristate "Freescale Coldfire QSPI controller"
279 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
280 help
281 This enables support for the Coldfire QSPI controller in master
282 mode.
283
284 config SPI_CS42L43
285 tristate "Cirrus Logic CS42L43 SPI controller"
286 depends on MFD_CS42L43 && PINCTRL_CS42L43
287 help
288 This enables support for the SPI controller inside the Cirrus Logic
289 CS42L43 audio codec.
290
291 config SPI_DAVINCI
292 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
293 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
294 select SPI_BITBANG
295 help
296 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
297
298 config SPI_DESIGNWARE
299 tristate "DesignWare SPI controller core support"
300 imply SPI_MEM
301 help
302 general driver for SPI controller core from DesignWare
303
304 if SPI_DESIGNWARE
305
306 config SPI_DW_DMA
307 bool "DMA support for DW SPI controller"
308
309 config SPI_DW_PCI
310 tristate "PCI interface driver for DW SPI core"
311 depends on PCI
312
313 config SPI_DW_MMIO
314 tristate "Memory-mapped io interface driver for DW SPI core"
315 depends on HAS_IOMEM
316
317 config SPI_DW_BT1
318 tristate "Baikal-T1 SPI driver for DW SPI core"
319 depends on MIPS_BAIKAL_T1 || COMPILE_TEST
320 select MULTIPLEXER
321 help
322 Baikal-T1 SoC is equipped with three DW APB SSI-based MMIO SPI
323 controllers. Two of them are pretty much normal: with IRQ, DMA,
324 FIFOs of 64 words depth, 4x CSs, but the third one as being a
325 part of the Baikal-T1 System Boot Controller has got a very
326 limited resources: no IRQ, no DMA, only a single native
327 chip-select and Tx/Rx FIFO with just 8 words depth available.
328 The later one is normally connected to an external SPI-nor flash
329 of 128Mb (in general can be of bigger size).
330
331 config SPI_DW_BT1_DIRMAP
332 bool "Directly mapped Baikal-T1 Boot SPI flash support"
333 depends on SPI_DW_BT1
334 help
335 Directly mapped SPI flash memory is an interface specific to the
336 Baikal-T1 System Boot Controller. It is a 16MB MMIO region, which
337 can be used to access a peripheral memory device just by
338 reading/writing data from/to it. Note that the system APB bus
339 will stall during each IO from/to the dirmap region until the
340 operation is finished. So try not to use it concurrently with
341 time-critical tasks (like the SPI memory operations implemented
342 in this driver).
343
344 endif
345
346 config SPI_DLN2
347 tristate "Diolan DLN-2 USB SPI adapter"
348 depends on MFD_DLN2
349 help
350 If you say yes to this option, support will be included for Diolan
351 DLN2, a USB to SPI interface.
352
353 This driver can also be built as a module. If so, the module
354 will be called spi-dln2.
355
356 config SPI_EP93XX
357 tristate "Cirrus Logic EP93xx SPI controller"
358 depends on ARCH_EP93XX || COMPILE_TEST
359 help
360 This enables using the Cirrus EP93xx SPI controller in master
361 mode.
362
363 config SPI_FALCON
364 bool "Falcon SPI controller support"
365 depends on SOC_FALCON
366 help
367 The external bus unit (EBU) found on the FALC-ON SoC has SPI
368 emulation that is designed for serial flash access. This driver
369 has only been tested with m25p80 type chips. The hardware has no
370 support for other types of SPI peripherals.
371
372 config SPI_FSI
373 tristate "FSI SPI driver"
374 depends on FSI
375 help
376 This enables support for the driver for FSI bus attached SPI
377 controllers.
378
379 config SPI_FSL_LPSPI
380 tristate "Freescale i.MX LPSPI controller"
381 depends on ARCH_MXC || COMPILE_TEST
382 help
383 This enables Freescale i.MX LPSPI controllers in master mode.
384
385 config SPI_FSL_QUADSPI
386 tristate "Freescale QSPI controller"
387 depends on ARCH_MXC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
388 depends on HAS_IOMEM
389 help
390 This enables support for the Quad SPI controller in master mode.
391 Up to four flash chips can be connected on two buses with two
392 chipselects each.
393 This controller does not support generic SPI messages. It only
394 supports the high-level SPI memory interface.
395
396 config SPI_GXP
397 tristate "GXP SPI driver"
398 depends on ARCH_HPE || COMPILE_TEST
399 help
400 This enables support for the driver for GXP bus attached SPI
401 controllers.
402
403 config SPI_HISI_KUNPENG
404 tristate "HiSilicon SPI Controller for Kunpeng SoCs"
405 depends on (ARM64 && ACPI) || COMPILE_TEST
406 help
407 This enables support for HiSilicon SPI controller found on
408 Kunpeng SoCs.
409
410 This driver can also be built as a module. If so, the module
411 will be called hisi-kunpeng-spi.
412
413 config SPI_HISI_SFC_V3XX
414 tristate "HiSilicon SPI NOR Flash Controller for Hi16XX chipsets"
415 depends on (ARM64 && ACPI) || COMPILE_TEST
416 depends on HAS_IOMEM
417 help
418 This enables support for HiSilicon v3xx SPI NOR flash controller
419 found in hi16xx chipsets.
420
421 config SPI_NXP_FLEXSPI
422 tristate "NXP Flex SPI controller"
423 depends on ARCH_LAYERSCAPE || ARCH_MXC || COMPILE_TEST
424 depends on HAS_IOMEM
425 help
426 This enables support for the Flex SPI controller in master mode.
427 Up to four slave devices can be connected on two buses with two
428 chipselects each.
429 This controller does not support generic SPI messages and only
430 supports the high-level SPI memory interface.
431
432 config SPI_GPIO
433 tristate "GPIO-based bitbanging SPI Master"
434 depends on GPIOLIB || COMPILE_TEST
435 select SPI_BITBANG
436 help
437 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
438 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
439 slaves connected to a bus using this driver are configured as usual,
440 except that the spi_board_info.controller_data holds the GPIO number
441 for the chipselect used by this controller driver.
442
443 Note that this driver often won't achieve even 1 Mbit/sec speeds,
444 making it unusually slow for SPI. If your platform can inline
445 GPIO operations, you should be able to leverage that for better
446 speed with a custom version of this driver; see the source code.
447
448 config SPI_IMG_SPFI
449 tristate "IMG SPFI controller"
450 depends on MIPS || COMPILE_TEST
451 help
452 This enables support for the SPFI master controller found on
453 IMG SoCs.
454
455 config SPI_IMX
456 tristate "Freescale i.MX SPI controllers"
457 depends on ARCH_MXC || COMPILE_TEST
458 help
459 This enables support for the Freescale i.MX SPI controllers.
460
461 config SPI_INGENIC
462 tristate "Ingenic SoCs SPI controller"
463 depends on MACH_INGENIC || COMPILE_TEST
464 help
465 This enables support for the Ingenic SoCs SPI controller.
466
467 To compile this driver as a module, choose M here: the module
468 will be called spi-ingenic.
469
470 config SPI_INTEL
471 tristate
472
473 config SPI_INTEL_PCI
474 tristate "Intel PCH/PCU SPI flash PCI driver"
475 depends on PCI
476 depends on X86 || COMPILE_TEST
477 depends on SPI_MEM
478 select SPI_INTEL
479 help
480 This enables PCI support for the Intel PCH/PCU SPI controller in
481 master mode. This controller is used to hold BIOS and other
482 persistent settings. Controllers present in modern Intel hardware
483 only work in hardware sequencing mode, this means that the
484 controller exposes a subset of operations that makes it safer to
485 use. Using this driver it is possible to upgrade BIOS directly
486 from Linux.
487
488 To compile this driver as a module, choose M here: the module
489 will be called spi-intel-pci.
490
491 config SPI_INTEL_PLATFORM
492 tristate "Intel PCH/PCU SPI flash platform driver (DANGEROUS)"
493 depends on X86 || COMPILE_TEST
494 depends on SPI_MEM
495 select SPI_INTEL
496 help
497 This enables platform support for the Intel PCH/PCU SPI
498 controller in master mode that is used to hold BIOS and other
499 persistent settings. Most of these controllers work in
500 software sequencing mode, which means that the controller
501 exposes the low level SPI-NOR opcodes to the software. Using
502 this driver it is possible to upgrade BIOS directly from Linux.
503
504 Say N here unless you know what you are doing. Overwriting the
505 SPI flash may render the system unbootable.
506
507 To compile this driver as a module, choose M here: the module
508 will be called spi-intel-platform.
509
510 config SPI_JCORE
511 tristate "J-Core SPI Master"
512 depends on OF && (SUPERH || COMPILE_TEST)
513 help
514 This enables support for the SPI master controller in the J-Core
515 synthesizable, open source SoC.
516
517 config SPI_LM70_LLP
518 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
519 depends on PARPORT
520 select SPI_BITBANG
521 help
522 This driver supports the NS LM70 LLP Evaluation Board,
523 which interfaces to an LM70 temperature sensor using
524 a parallel port.
525
526 config SPI_LOONGSON_CORE
527 tristate
528 depends on LOONGARCH || COMPILE_TEST
529
530 config SPI_LOONGSON_PCI
531 tristate "Loongson SPI Controller PCI Driver Support"
532 select SPI_LOONGSON_CORE
533 depends on PCI && (LOONGARCH || COMPILE_TEST)
534 help
535 This bus driver supports the Loongson SPI hardware controller in
536 the Loongson platforms and supports to use PCI framework to
537 register SPI device resources.
538 Say Y or M here if you want to use the SPI controller on
539 Loongson platform.
540
541 config SPI_LOONGSON_PLATFORM
542 tristate "Loongson SPI Controller Platform Driver Support"
543 select SPI_LOONGSON_CORE
544 depends on OF && (LOONGARCH || COMPILE_TEST)
545 help
546 This bus driver supports the Loongson SPI hardware controller in
547 the Loongson platforms and supports to use DTS framework to
548 register SPI device resources.
549 Say Y or M here if you want to use the SPI controller on
550 Loongson platform.
551
552 config SPI_LP8841_RTC
553 tristate "ICP DAS LP-8841 SPI Controller for RTC"
554 depends on MACH_PXA27X_DT || COMPILE_TEST
555 help
556 This driver provides an SPI master device to drive Maxim
557 DS-1302 real time clock.
558
559 Say N here unless you plan to run the kernel on an ICP DAS
560 LP-8x4x industrial computer.
561
562 config SPI_MPC52xx
563 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
564 depends on PPC_MPC52xx
565 help
566 This drivers supports the MPC52xx SPI controller in master SPI
567 mode.
568
569 config SPI_MPC52xx_PSC
570 tristate "Freescale MPC52xx PSC SPI controller"
571 depends on PPC_MPC52xx
572 help
573 This enables using the Freescale MPC52xx Programmable Serial
574 Controller in master SPI mode.
575
576 config SPI_MPC512x_PSC
577 tristate "Freescale MPC512x PSC SPI controller"
578 depends on PPC_MPC512x
579 help
580 This enables using the Freescale MPC5121 Programmable Serial
581 Controller in SPI master mode.
582
583 config SPI_FSL_LIB
584 tristate
585 depends on OF
586
587 config SPI_FSL_CPM
588 tristate
589 depends on FSL_SOC
590
591 config SPI_FSL_SPI
592 tristate "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller"
593 depends on OF
594 select SPI_FSL_LIB
595 select SPI_FSL_CPM if FSL_SOC
596 help
597 This enables using the Freescale SPI controllers in master mode.
598 MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
599 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
600 This also enables using the Aeroflex Gaisler GRLIB SPI controller in
601 master mode.
602
603 config SPI_FSL_DSPI
604 tristate "Freescale DSPI controller"
605 select REGMAP_MMIO
606 depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || M5441x || COMPILE_TEST
607 help
608 This enables support for the Freescale DSPI controller in master
609 mode. VF610, LS1021A and ColdFire platforms uses the controller.
610
611 config SPI_FSL_ESPI
612 tristate "Freescale eSPI controller"
613 depends on FSL_SOC
614 help
615 This enables using the Freescale eSPI controllers in master mode.
616 From MPC8536, 85xx platform uses the controller, and all P10xx,
617 P20xx, P30xx,P40xx, P50xx uses this controller.
618
619 config SPI_LJCA
620 tristate "Intel La Jolla Cove Adapter SPI support"
621 depends on USB_LJCA
622 default USB_LJCA
623 help
624 Select this option to enable SPI driver for the Intel
625 La Jolla Cove Adapter (LJCA) board.
626
627 This driver can also be built as a module. If so, the module
628 will be called spi-ljca.
629
630 config SPI_MESON_SPICC
631 tristate "Amlogic Meson SPICC controller"
632 depends on COMMON_CLK
633 depends on ARCH_MESON || COMPILE_TEST
634 help
635 This enables master mode support for the SPICC (SPI communication
636 controller) available in Amlogic Meson SoCs.
637
638 config SPI_MESON_SPIFC
639 tristate "Amlogic Meson SPIFC controller"
640 depends on ARCH_MESON || COMPILE_TEST
641 select REGMAP_MMIO
642 help
643 This enables master mode support for the SPIFC (SPI flash
644 controller) available in Amlogic Meson SoCs.
645
646 config SPI_MICROCHIP_CORE
647 tristate "Microchip FPGA SPI controllers"
648 depends on SPI_MASTER
649 help
650 This enables the SPI driver for Microchip FPGA SPI controllers.
651 Say Y or M here if you want to use the "hard" controllers on
652 PolarFire SoC.
653 If built as a module, it will be called spi-microchip-core.
654
655 config SPI_MICROCHIP_CORE_QSPI
656 tristate "Microchip FPGA QSPI controllers"
657 depends on SPI_MASTER
658 help
659 This enables the QSPI driver for Microchip FPGA QSPI controllers.
660 Say Y or M here if you want to use the QSPI controllers on
661 PolarFire SoC.
662 If built as a module, it will be called spi-microchip-core-qspi.
663
664 config SPI_MT65XX
665 tristate "MediaTek SPI controller"
666 depends on ARCH_MEDIATEK || COMPILE_TEST
667 help
668 This selects the MediaTek(R) SPI bus driver.
669 If you want to use MediaTek(R) SPI interface,
670 say Y or M here.If you are not sure, say N.
671 SPI drivers for Mediatek MT65XX and MT81XX series ARM SoCs.
672
673 config SPI_MT7621
674 tristate "MediaTek MT7621 SPI Controller"
675 depends on RALINK || COMPILE_TEST
676 help
677 This selects a driver for the MediaTek MT7621 SPI Controller.
678
679 config SPI_MTK_NOR
680 tristate "MediaTek SPI NOR controller"
681 depends on ARCH_MEDIATEK || COMPILE_TEST
682 help
683 This enables support for SPI NOR controller found on MediaTek
684 ARM SoCs. This is a controller specifically for SPI NOR flash.
685 It can perform generic SPI transfers up to 6 bytes via generic
686 SPI interface as well as several SPI NOR specific instructions
687 via SPI MEM interface.
688
689 config SPI_MTK_SNFI
690 tristate "MediaTek SPI NAND Flash Interface"
691 depends on ARCH_MEDIATEK || COMPILE_TEST
692 depends on MTD_NAND_ECC_MEDIATEK
693 help
694 This enables support for SPI-NAND mode on the MediaTek NAND
695 Flash Interface found on MediaTek ARM SoCs. This controller
696 is implemented as a SPI-MEM controller with pipelined ECC
697 capcability.
698
699 config SPI_WPCM_FIU
700 tristate "Nuvoton WPCM450 Flash Interface Unit"
701 depends on ARCH_NPCM || COMPILE_TEST
702 select REGMAP
703 help
704 This enables support got the Flash Interface Unit SPI controller
705 present in the Nuvoton WPCM450 SoC.
706
707 This driver does not support generic SPI. The implementation only
708 supports the spi-mem interface.
709
710 config SPI_NPCM_FIU
711 tristate "Nuvoton NPCM FLASH Interface Unit"
712 depends on ARCH_NPCM || COMPILE_TEST
713 depends on OF && HAS_IOMEM
714 help
715 This enables support for the Flash Interface Unit SPI controller
716 in master mode.
717 This driver does not support generic SPI. The implementation only
718 supports spi-mem interface.
719
720 config SPI_NPCM_PSPI
721 tristate "Nuvoton NPCM PSPI Controller"
722 depends on ARCH_NPCM || COMPILE_TEST
723 help
724 This driver provides support for Nuvoton NPCM BMC
725 Peripheral SPI controller in master mode.
726
727 config SPI_LANTIQ_SSC
728 tristate "Lantiq SSC SPI controller"
729 depends on LANTIQ || X86 || COMPILE_TEST
730 help
731 This driver supports the Lantiq SSC SPI controller in master
732 mode. This controller is found on Intel (former Lantiq) SoCs like
733 the Danube, Falcon, xRX200, xRX300, Lightning Mountain.
734
735 config SPI_OC_TINY
736 tristate "OpenCores tiny SPI"
737 depends on GPIOLIB || COMPILE_TEST
738 select SPI_BITBANG
739 help
740 This is the driver for OpenCores tiny SPI master controller.
741
742 config SPI_OCTEON
743 tristate "Cavium OCTEON SPI controller"
744 depends on CAVIUM_OCTEON_SOC
745 help
746 SPI host driver for the hardware found on some Cavium OCTEON
747 SOCs.
748
749 config SPI_OMAP_UWIRE
750 tristate "OMAP1 MicroWire"
751 depends on ARCH_OMAP1 || (ARM && COMPILE_TEST)
752 select SPI_BITBANG
753 help
754 This hooks up to the MicroWire controller on OMAP1 chips.
755
756 config SPI_OMAP24XX
757 tristate "McSPI driver for OMAP"
758 depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST
759 select SG_SPLIT
760 help
761 SPI master controller for OMAP24XX and later Multichannel SPI
762 (McSPI) modules.
763
764 config SPI_TI_QSPI
765 tristate "DRA7xxx QSPI controller support"
766 depends on ARCH_OMAP2PLUS || COMPILE_TEST
767 help
768 QSPI master controller for DRA7xxx used for flash devices.
769 This device supports single, dual and quad read support, while
770 it only supports single write mode.
771
772 config SPI_ORION
773 tristate "Orion SPI master"
774 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
775 help
776 This enables using the SPI master controller on the Orion
777 and MVEBU chips.
778
779 config SPI_PCI1XXXX
780 tristate "PCI1XXXX SPI Bus support"
781 depends on PCI
782 help
783 Say "yes" to Enable the SPI Bus support for the PCI1xxxx card
784 This is a PCI to SPI Bus driver
785 This driver can be built as module. If so, the module will be
786 called as spi-pci1xxxx.
787
788 config SPI_PIC32
789 tristate "Microchip PIC32 series SPI"
790 depends on MACH_PIC32 || COMPILE_TEST
791 help
792 SPI driver for Microchip PIC32 SPI master controller.
793
794 config SPI_PIC32_SQI
795 tristate "Microchip PIC32 Quad SPI driver"
796 depends on MACH_PIC32 || COMPILE_TEST
797 help
798 SPI driver for PIC32 Quad SPI controller.
799
800 config SPI_PL022
801 tristate "ARM AMBA PL022 SSP controller"
802 depends on ARM_AMBA
803 default y if ARCH_REALVIEW
804 default y if INTEGRATOR_IMPD1
805 default y if ARCH_VERSATILE
806 help
807 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
808 controller. If you have an embedded system with an AMBA(R)
809 bus and a PL022 controller, say Y or M here.
810
811 config SPI_PPC4xx
812 tristate "PPC4xx SPI Controller"
813 depends on PPC32 && 4xx
814 select SPI_BITBANG
815 help
816 This selects a driver for the PPC4xx SPI Controller.
817
818 config SPI_PXA2XX
819 tristate "PXA2xx SSP SPI master"
820 depends on ARCH_PXA || ARCH_MMP || PCI || ACPI || COMPILE_TEST
821 select PXA_SSP if ARCH_PXA || ARCH_MMP
822 help
823 This enables using a PXA2xx or Sodaville SSP port as a SPI master
824 controller. The driver can be configured to use any SSP port and
825 additional documentation can be found a Documentation/spi/pxa2xx.rst.
826
827 config SPI_PXA2XX_PCI
828 def_tristate SPI_PXA2XX && PCI && COMMON_CLK
829
830 config SPI_ROCKCHIP
831 tristate "Rockchip SPI controller driver"
832 depends on ARCH_ROCKCHIP || COMPILE_TEST
833 help
834 This selects a driver for Rockchip SPI controller.
835
836 If you say yes to this option, support will be included for
837 RK3066, RK3188 and RK3288 families of SPI controller.
838 Rockchip SPI controller support DMA transport and PIO mode.
839 The main usecase of this controller is to use spi flash as boot
840 device.
841
842 config SPI_ROCKCHIP_SFC
843 tristate "Rockchip Serial Flash Controller (SFC)"
844 depends on ARCH_ROCKCHIP || COMPILE_TEST
845 depends on HAS_IOMEM && HAS_DMA
846 help
847 This enables support for Rockchip serial flash controller. This
848 is a specialized controller used to access SPI flash on some
849 Rockchip SOCs.
850
851 ROCKCHIP SFC supports DMA and PIO modes. When DMA is not available,
852 the driver automatically falls back to PIO mode.
853
854 config SPI_RB4XX
855 tristate "Mikrotik RB4XX SPI master"
856 depends on SPI_MASTER && ATH79
857 help
858 SPI controller driver for the Mikrotik RB4xx series boards.
859
860 config SPI_RPCIF
861 tristate "Renesas RPC-IF SPI driver"
862 depends on RENESAS_RPCIF
863 help
864 SPI driver for Renesas R-Car Gen3 or RZ/G2 RPC-IF.
865
866 config SPI_RSPI
867 tristate "Renesas RSPI/QSPI controller"
868 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
869 help
870 SPI driver for Renesas RSPI and QSPI blocks.
871
872 config SPI_RZV2M_CSI
873 tristate "Renesas RZ/V2M CSI controller"
874 depends on ARCH_RENESAS || COMPILE_TEST
875 help
876 SPI driver for Renesas RZ/V2M Clocked Serial Interface (CSI).
877 CSI supports both SPI host and SPI target roles.
878
879 config SPI_QCOM_QSPI
880 tristate "QTI QSPI controller"
881 depends on ARCH_QCOM || COMPILE_TEST
882 help
883 QSPI(Quad SPI) driver for Qualcomm QSPI controller.
884
885 config SPI_QUP
886 tristate "Qualcomm SPI controller with QUP interface"
887 depends on ARCH_QCOM || COMPILE_TEST
888 help
889 Qualcomm Universal Peripheral (QUP) core is an AHB slave that
890 provides a common data path (an output FIFO and an input FIFO)
891 for serial peripheral interface (SPI) mini-core. SPI in master
892 mode supports up to 50MHz, up to four chip selects, programmable
893 data path from 4 bits to 32 bits and numerous protocol variants.
894
895 This driver can also be built as a module. If so, the module
896 will be called spi_qup.
897
898 config SPI_QCOM_GENI
899 tristate "Qualcomm GENI based SPI controller"
900 depends on QCOM_GENI_SE
901 help
902 This driver supports GENI serial engine based SPI controller in
903 master mode on the Qualcomm Technologies Inc.'s SoCs. If you say
904 yes to this option, support will be included for the built-in SPI
905 interface on the Qualcomm Technologies Inc.'s SoCs.
906
907 This driver can also be built as a module. If so, the module
908 will be called spi-geni-qcom.
909
910 config SPI_S3C64XX
911 tristate "Samsung S3C64XX/Exynos SoC series type SPI"
912 depends on (PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST)
913 help
914 SPI driver for Samsung S3C64XX, S5Pv210 and Exynos SoCs.
915 Choose Y/M here only if you build for such Samsung SoC.
916
917 config SPI_SC18IS602
918 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
919 depends on I2C
920 help
921 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
922
923 config SPI_SH_MSIOF
924 tristate "SuperH MSIOF SPI controller"
925 depends on HAVE_CLK
926 depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
927 help
928 SPI driver for SuperH and SH Mobile MSIOF blocks.
929
930 config SPI_SH
931 tristate "SuperH SPI controller"
932 depends on SUPERH || COMPILE_TEST
933 help
934 SPI driver for SuperH SPI blocks.
935
936 config SPI_SH_SCI
937 tristate "SuperH SCI SPI controller"
938 depends on SUPERH
939 select SPI_BITBANG
940 help
941 SPI driver for SuperH SCI blocks.
942
943 config SPI_SH_HSPI
944 tristate "SuperH HSPI controller"
945 depends on ARCH_RENESAS || COMPILE_TEST
946 help
947 SPI driver for SuperH HSPI blocks.
948
949 config SPI_SIFIVE
950 tristate "SiFive SPI controller"
951 depends on HAS_IOMEM
952 help
953 This exposes the SPI controller IP from SiFive.
954
955 config SPI_SLAVE_MT27XX
956 tristate "MediaTek SPI slave device"
957 depends on ARCH_MEDIATEK || COMPILE_TEST
958 depends on SPI_SLAVE
959 help
960 This selects the MediaTek(R) SPI slave device driver.
961 If you want to use MediaTek(R) SPI slave interface,
962 say Y or M here.If you are not sure, say N.
963 SPI slave drivers for Mediatek MT27XX series ARM SoCs.
964
965 config SPI_SN_F_OSPI
966 tristate "Socionext F_OSPI SPI flash controller"
967 depends on OF && HAS_IOMEM
968 depends on SPI_MEM
969 help
970 This enables support for the Socionext F_OSPI controller
971 for connecting an SPI Flash memory over up to 8-bit wide bus.
972 It supports indirect access mode only.
973
974 config SPI_SPRD
975 tristate "Spreadtrum SPI controller"
976 depends on ARCH_SPRD || COMPILE_TEST
977 help
978 SPI driver for Spreadtrum SoCs.
979
980 config SPI_SPRD_ADI
981 tristate "Spreadtrum ADI controller"
982 depends on ARCH_SPRD || COMPILE_TEST
983 depends on HWSPINLOCK || (COMPILE_TEST && !HWSPINLOCK)
984 help
985 ADI driver based on SPI for Spreadtrum SoCs.
986
987 config SPI_STM32
988 tristate "STMicroelectronics STM32 SPI controller"
989 depends on ARCH_STM32 || COMPILE_TEST
990 select SPI_SLAVE
991 help
992 SPI driver for STMicroelectronics STM32 SoCs.
993
994 STM32 SPI controller supports DMA and PIO modes. When DMA
995 is not available, the driver automatically falls back to
996 PIO mode.
997
998 config SPI_STM32_QSPI
999 tristate "STMicroelectronics STM32 QUAD SPI controller"
1000 depends on ARCH_STM32 || COMPILE_TEST
1001 depends on OF
1002 depends on SPI_MEM
1003 help
1004 This enables support for the Quad SPI controller in master mode.
1005 This driver does not support generic SPI. The implementation only
1006 supports spi-mem interface.
1007
1008 config SPI_ST_SSC4
1009 tristate "STMicroelectronics SPI SSC-based driver"
1010 depends on ARCH_STI || COMPILE_TEST
1011 help
1012 STMicroelectronics SoCs support for SPI. If you say yes to
1013 this option, support will be included for the SSC driven SPI.
1014
1015 config SPI_SUN4I
1016 tristate "Allwinner A10 SoCs SPI controller"
1017 depends on ARCH_SUNXI || COMPILE_TEST
1018 help
1019 SPI driver for Allwinner sun4i, sun5i and sun7i SoCs
1020
1021 config SPI_SUN6I
1022 tristate "Allwinner A31 SPI controller"
1023 depends on ARCH_SUNXI || COMPILE_TEST
1024 depends on RESET_CONTROLLER
1025 help
1026 This enables using the SPI controller on the Allwinner A31 SoCs.
1027
1028 config SPI_SUNPLUS_SP7021
1029 tristate "Sunplus SP7021 SPI controller"
1030 depends on SOC_SP7021 || COMPILE_TEST
1031 help
1032 This enables Sunplus SP7021 SPI controller driver on the SP7021 SoCs.
1033 This driver can also be built as a module. If so, the module will be
1034 called as spi-sunplus-sp7021.
1035
1036 If you have a Sunplus SP7021 platform say Y here.
1037 If unsure, say N.
1038
1039 config SPI_SYNQUACER
1040 tristate "Socionext's SynQuacer HighSpeed SPI controller"
1041 depends on ARCH_SYNQUACER || COMPILE_TEST
1042 help
1043 SPI driver for Socionext's High speed SPI controller which provides
1044 various operating modes for interfacing to serial peripheral devices
1045 that use the de-facto standard SPI protocol.
1046
1047 It also supports the new dual-bit and quad-bit SPI protocol.
1048
1049 config SPI_MXIC
1050 tristate "Macronix MX25F0A SPI controller"
1051 depends on SPI_MASTER
1052 imply MTD_NAND_ECC_MXIC
1053 help
1054 This selects the Macronix MX25F0A SPI controller driver.
1055
1056 config SPI_MXS
1057 tristate "Freescale MXS SPI controller"
1058 depends on ARCH_MXS
1059 select STMP_DEVICE
1060 help
1061 SPI driver for Freescale MXS devices.
1062
1063 config SPI_TEGRA210_QUAD
1064 tristate "NVIDIA Tegra QSPI Controller"
1065 depends on ARCH_TEGRA || COMPILE_TEST
1066 depends on RESET_CONTROLLER
1067 help
1068 QSPI driver for NVIDIA Tegra QSPI Controller interface. This
1069 controller is different from the SPI controller and is available
1070 on Tegra SoCs starting from Tegra210.
1071
1072 config SPI_TEGRA114
1073 tristate "NVIDIA Tegra114 SPI Controller"
1074 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
1075 depends on RESET_CONTROLLER
1076 help
1077 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller
1078 is different than the older SoCs SPI controller and also register interface
1079 get changed with this controller.
1080
1081 config SPI_TEGRA20_SFLASH
1082 tristate "Nvidia Tegra20 Serial flash Controller"
1083 depends on ARCH_TEGRA || COMPILE_TEST
1084 depends on RESET_CONTROLLER
1085 help
1086 SPI driver for Nvidia Tegra20 Serial flash Controller interface.
1087 The main usecase of this controller is to use spi flash as boot
1088 device.
1089
1090 config SPI_TEGRA20_SLINK
1091 tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
1092 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
1093 depends on RESET_CONTROLLER
1094 help
1095 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
1096
1097 config SPI_THUNDERX
1098 tristate "Cavium ThunderX SPI controller"
1099 depends on PCI && 64BIT && (ARM64 || COMPILE_TEST)
1100 help
1101 SPI host driver for the hardware found on Cavium ThunderX
1102 SOCs.
1103
1104 config SPI_TOPCLIFF_PCH
1105 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
1106 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
1107 help
1108 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
1109 used in some x86 embedded processors.
1110
1111 This driver also supports the ML7213/ML7223/ML7831, a companion chip
1112 for the Atom E6xx series and compatible with the Intel EG20T PCH.
1113
1114 config SPI_UNIPHIER
1115 tristate "Socionext UniPhier SPI Controller"
1116 depends on (ARCH_UNIPHIER || COMPILE_TEST) && OF
1117 depends on HAS_IOMEM
1118 help
1119 This enables a driver for the Socionext UniPhier SoC SCSSI SPI controller.
1120
1121 UniPhier SoCs have SCSSI and MCSSI SPI controllers.
1122 Every UniPhier SoC has SCSSI which supports single channel.
1123 Older UniPhier Pro4/Pro5 also has MCSSI which support multiple channels.
1124 This driver supports SCSSI only.
1125
1126 If your SoC supports SCSSI, say Y here.
1127
1128 config SPI_XCOMM
1129 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
1130 depends on I2C
1131 help
1132 Support for the SPI-I2C bridge found on the Analog Devices
1133 AD-FMCOMMS1-EBZ board.
1134
1135 config SPI_XILINX
1136 tristate "Xilinx SPI controller common module"
1137 depends on HAS_IOMEM
1138 select SPI_BITBANG
1139 help
1140 This exposes the SPI controller IP from the Xilinx EDK.
1141
1142 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
1143 Product Specification document (DS464) for hardware details.
1144
1145 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
1146
1147 config SPI_XLP
1148 tristate "Cavium ThunderX2 SPI controller driver"
1149 depends on ARCH_THUNDER2 || COMPILE_TEST
1150 help
1151 Enable support for the SPI controller on the Cavium ThunderX2.
1152 (Originally on Netlogic XLP SoCs.)
1153
1154 If you have a Cavium ThunderX2 platform say Y here.
1155 If unsure, say N.
1156
1157 config SPI_XTENSA_XTFPGA
1158 tristate "Xtensa SPI controller for xtfpga"
1159 depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST
1160 select SPI_BITBANG
1161 help
1162 SPI driver for xtfpga SPI master controller.
1163
1164 This simple SPI master controller is built into xtfpga bitstreams
1165 and is used to control daughterboard audio codec. It always transfers
1166 16 bit words in SPI mode 0, automatically asserting CS on transfer
1167 start and deasserting on end.
1168
1169 config SPI_ZYNQ_QSPI
1170 tristate "Xilinx Zynq QSPI controller"
1171 depends on ARCH_ZYNQ || COMPILE_TEST
1172 help
1173 This enables support for the Zynq Quad SPI controller
1174 in master mode.
1175 This controller only supports SPI memory interface.
1176
1177 config SPI_ZYNQMP_GQSPI
1178 tristate "Xilinx ZynqMP GQSPI controller"
1179 depends on (SPI_MASTER && HAS_DMA) || COMPILE_TEST
1180 help
1181 Enables Xilinx GQSPI controller driver for Zynq UltraScale+ MPSoC.
1182
1183 config SPI_AMD
1184 tristate "AMD SPI controller"
1185 depends on SPI_MASTER || COMPILE_TEST
1186 help
1187 Enables SPI controller driver for AMD SoC.
1188
1189 #
1190 # Add new SPI master controllers in alphabetical order above this line
1191 #
1192
1193 comment "SPI Multiplexer support"
1194
1195 config SPI_MUX
1196 tristate "SPI multiplexer support"
1197 select MULTIPLEXER
1198 help
1199 This adds support for SPI multiplexers. Each SPI mux will be
1200 accessible as a SPI controller, the devices behind the mux will appear
1201 to be chip selects on this controller. It is still necessary to
1202 select one or more specific mux-controller drivers.
1203
1204 #
1205 # There are lots of SPI device types, with sensors and memory
1206 # being probably the most widely used ones.
1207 #
1208 comment "SPI Protocol Masters"
1209
1210 config SPI_SPIDEV
1211 tristate "User mode SPI device driver support"
1212 help
1213 This supports user mode SPI protocol drivers.
1214
1215 config SPI_LOOPBACK_TEST
1216 tristate "spi loopback test framework support"
1217 depends on m
1218 help
1219 This enables the SPI loopback testing framework driver
1220
1221 primarily used for development of spi_master drivers
1222 and to detect regressions
1223
1224 config SPI_TLE62X0
1225 tristate "Infineon TLE62X0 (for power switching)"
1226 depends on SYSFS
1227 help
1228 SPI driver for Infineon TLE62X0 series line driver chips,
1229 such as the TLE6220, TLE6230 and TLE6240. This provides a
1230 sysfs interface, with each line presented as a kind of GPIO
1231 exposing both switch control and diagnostic feedback.
1232
1233 #
1234 # Add new SPI protocol masters in alphabetical order above this line
1235 #
1236
1237 endif # SPI_MASTER
1238
1239 #
1240 # SLAVE side ... listening to other SPI masters
1241 #
1242
1243 config SPI_SLAVE
1244 bool "SPI slave protocol handlers"
1245 help
1246 If your system has a slave-capable SPI controller, you can enable
1247 slave protocol handlers.
1248
1249 if SPI_SLAVE
1250
1251 config SPI_SLAVE_TIME
1252 tristate "SPI slave handler reporting boot up time"
1253 help
1254 SPI slave handler responding with the time of reception of the last
1255 SPI message.
1256
1257 config SPI_SLAVE_SYSTEM_CONTROL
1258 tristate "SPI slave handler controlling system state"
1259 help
1260 SPI slave handler to allow remote control of system reboot, power
1261 off, halt, and suspend.
1262
1263 endif # SPI_SLAVE
1264
1265 config SPI_DYNAMIC
1266 def_bool ACPI || OF_DYNAMIC || SPI_SLAVE
1267
1268 endif # SPI