2 # SPI driver configuration
8 The "Serial Peripheral Interface" is a low level synchronous
9 protocol. Chips that support SPI can have data transfer rates
10 up to several tens of Mbit/sec. Chips are addressed with a
11 controller and a chipselect. Most SPI slaves don't support
12 dynamic device discovery; some are even write-only or read-only.
14 SPI is widely used by microcontrollers to talk with sensors,
15 eeprom and flash memory, codecs and various other controller
16 chips, analog to digital (and d-to-a) converters, and more.
17 MMC and SD cards can be accessed using SPI protocol; and for
18 DataFlash cards used in MMC sockets, SPI must always be used.
20 SPI is one of a family of similar protocols using a four wire
21 interface (select, clock, data in, data out) including Microwire
22 (half duplex), SSP, SSI, and PSP. This driver framework should
23 work with most such devices and controllers.
28 bool "Debug support for SPI drivers"
29 depends on DEBUG_KERNEL
31 Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
32 sysfs, and debugfs support in SPI controller and protocol drivers.
35 # MASTER side ... talking to discrete SPI slave chips including microcontrollers
39 # bool "SPI Master Support"
43 If your system has an master-capable SPI controller (which
44 provides the clock and chipselect), you can enable that
45 controller and the protocol drivers for the SPI slave chips
50 comment "SPI Master Controller Drivers"
53 tristate "Altera SPI Controller"
55 This is the driver for the Altera SPI Controller.
58 tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
59 depends on ATH79 && GPIOLIB
62 This enables support for the SPI controller present on the
63 Atheros AR71XX/AR724X/AR913X SoCs.
65 config SPI_ARMADA_3700
66 tristate "Marvell Armada 3700 SPI Controller"
67 depends on (ARCH_MVEBU && OF) || COMPILE_TEST
69 This enables support for the SPI controller present on the
70 Marvell Armada 3700 SoCs.
73 tristate "Atmel SPI Controller"
75 depends on (ARCH_AT91 || AVR32 || COMPILE_TEST)
77 This selects a driver for the Atmel SPI Controller, present on
78 many AT32 (AVR32) and AT91 (ARM) chips.
81 tristate "Au1550/Au1200/Au1300 SPI Controller"
82 depends on MIPS_ALCHEMY
85 If you say yes to this option, support will be included for the
86 PSC SPI controller found on Au1550, Au1200 and Au1300 series.
88 config SPI_AXI_SPI_ENGINE
89 tristate "Analog Devices AXI SPI Engine controller"
92 This enables support for the Analog Devices AXI SPI Engine SPI controller.
93 It is part of the SPI Engine framework that is used in some Analog Devices
94 reference designs for FPGAs.
97 tristate "BCM2835 SPI controller"
99 depends on ARCH_BCM2835 || COMPILE_TEST
101 This selects a driver for the Broadcom BCM2835 SPI master.
103 The BCM2835 contains two types of SPI master controller; the
104 "universal SPI master", and the regular SPI controller. This driver
105 is for the regular SPI controller. Slave mode operation is not also
108 config SPI_BCM2835AUX
109 tristate "BCM2835 SPI auxiliary controller"
110 depends on (ARCH_BCM2835 && GPIOLIB) || COMPILE_TEST
112 This selects a driver for the Broadcom BCM2835 SPI aux master.
114 The BCM2835 contains two types of SPI master controller; the
115 "universal SPI master", and the regular SPI controller.
116 This driver is for the universal/auxiliary SPI controller.
119 tristate "SPI controller driver for ADI Blackfin5xx"
120 depends on BLACKFIN && !BF60x
122 This is the SPI controller master driver for Blackfin 5xx processor.
125 tristate "SPI controller v3 for ADI"
128 This is the SPI controller v3 master driver
129 found on Blackfin 60x processor.
131 config SPI_BFIN_SPORT
132 tristate "SPI bus via Blackfin SPORT"
135 Enable support for a SPI bus via the Blackfin SPORT peripheral.
138 tristate "Broadcom BCM53xx SPI controller"
139 depends on ARCH_BCM_5301X
140 depends on BCMA_POSSIBLE
143 Enable support for the SPI controller on Broadcom BCM53xx ARM SoCs.
146 tristate "Broadcom BCM63xx SPI controller"
147 depends on BCM63XX || COMPILE_TEST
149 Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
151 config SPI_BCM63XX_HSSPI
152 tristate "Broadcom BCM63XX HS SPI controller driver"
153 depends on BCM63XX || COMPILE_TEST
155 This enables support for the High Speed SPI controller present on
156 newer Broadcom BCM63XX SoCs.
159 tristate "Broadcom BSPI and MSPI controller support"
160 depends on ARCH_BRCMSTB || ARCH_BCM || ARCH_BCM_IPROC || \
161 BMIPS_GENERIC || COMPILE_TEST
162 default ARCH_BCM_IPROC
164 Enables support for the Broadcom SPI flash and MSPI controller.
165 Select this option for any one of BRCMSTB, iProc NSP and NS2 SoCs
166 based platforms. This driver works for both SPI master for spi-nor
167 flash device as well as MSPI device.
170 tristate "Utilities for Bitbanging SPI masters"
172 With a few GPIO pins, your system can bitbang the SPI protocol.
173 Select this to get SPI support through I/O pins (GPIO, parallel
174 port, etc). Or, some systems' SPI master controller drivers use
175 this code to manage the per-word or per-transfer accesses to the
176 hardware shift registers.
178 This is library code, and is automatically selected by drivers that
179 need it. You only need to select this explicitly to support driver
180 modules that aren't part of this kernel tree.
183 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
187 This uses a custom parallel port cable to connect to an AVR
188 Butterfly <http://www.atmel.com/products/avr/butterfly>, an
189 inexpensive battery powered microcontroller evaluation board.
190 This same cable can be used to flash new firmware.
193 tristate "Cadence SPI controller"
195 This selects the Cadence SPI controller master driver
196 used by Xilinx Zynq and ZynqMP.
199 tristate "CLPS711X host SPI controller"
200 depends on ARCH_CLPS711X || COMPILE_TEST
202 This enables dedicated general purpose SPI/Microwire1-compatible
203 master mode interface (SSI1) for CLPS711X-based CPUs.
205 config SPI_COLDFIRE_QSPI
206 tristate "Freescale Coldfire QSPI controller"
207 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
209 This enables support for the Coldfire QSPI controller in master
213 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
214 depends on ARCH_DAVINCI || ARCH_KEYSTONE
217 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
219 config SPI_DESIGNWARE
220 tristate "DesignWare SPI controller core support"
222 general driver for SPI controller core from DesignWare
225 tristate "PCI interface driver for DW SPI core"
226 depends on SPI_DESIGNWARE && PCI
228 config SPI_DW_MID_DMA
229 bool "DMA support for DW SPI controller on Intel MID platform"
230 depends on SPI_DW_PCI && DW_DMAC_PCI
233 tristate "Memory-mapped io interface driver for DW SPI core"
234 depends on SPI_DESIGNWARE
237 tristate "Diolan DLN-2 USB SPI adapter"
240 If you say yes to this option, support will be included for Diolan
241 DLN2, a USB to SPI interface.
243 This driver can also be built as a module. If so, the module
244 will be called spi-dln2.
247 tristate "EFM32 SPI controller"
248 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
251 Driver for the spi controller found on Energy Micro's EFM32 SoCs.
254 tristate "Cirrus Logic EP93xx SPI controller"
256 depends on ARCH_EP93XX || COMPILE_TEST
258 This enables using the Cirrus EP93xx SPI controller in master
262 bool "Falcon SPI controller support"
263 depends on SOC_FALCON
265 The external bus unit (EBU) found on the FALC-ON SoC has SPI
266 emulation that is designed for serial flash access. This driver
267 has only been tested with m25p80 type chips. The hardware has no
268 support for other types of SPI peripherals.
271 tristate "Freescale i.MX LPSPI controller"
272 depends on ARCH_MXC || COMPILE_TEST
274 This enables Freescale i.MX LPSPI controllers in master mode.
277 tristate "GPIO-based bitbanging SPI Master"
278 depends on GPIOLIB || COMPILE_TEST
281 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
282 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
283 slaves connected to a bus using this driver are configured as usual,
284 except that the spi_board_info.controller_data holds the GPIO number
285 for the chipselect used by this controller driver.
287 Note that this driver often won't achieve even 1 Mbit/sec speeds,
288 making it unusually slow for SPI. If your platform can inline
289 GPIO operations, you should be able to leverage that for better
290 speed with a custom version of this driver; see the source code.
293 tristate "IMG SPFI controller"
294 depends on MIPS || COMPILE_TEST
296 This enables support for the SPFI master controller found on
300 tristate "Freescale i.MX SPI controllers"
301 depends on ARCH_MXC || COMPILE_TEST
304 This enables using the Freescale i.MX SPI controllers in master
308 tristate "J-Core SPI Master"
309 depends on OF && (SUPERH || COMPILE_TEST)
311 This enables support for the SPI master controller in the J-Core
312 synthesizable, open source SoC.
315 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
319 This driver supports the NS LM70 LLP Evaluation Board,
320 which interfaces to an LM70 temperature sensor using
323 config SPI_LP8841_RTC
324 tristate "ICP DAS LP-8841 SPI Controller for RTC"
325 depends on MACH_PXA27X_DT || COMPILE_TEST
327 This driver provides an SPI master device to drive Maxim
328 DS-1302 real time clock.
330 Say N here unless you plan to run the kernel on an ICP DAS
331 LP-8x4x industrial computer.
334 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
335 depends on PPC_MPC52xx
337 This drivers supports the MPC52xx SPI controller in master SPI
340 config SPI_MPC52xx_PSC
341 tristate "Freescale MPC52xx PSC SPI controller"
342 depends on PPC_MPC52xx
344 This enables using the Freescale MPC52xx Programmable Serial
345 Controller in master SPI mode.
347 config SPI_MPC512x_PSC
348 tristate "Freescale MPC512x PSC SPI controller"
349 depends on PPC_MPC512x
351 This enables using the Freescale MPC5121 Programmable Serial
352 Controller in SPI master mode.
363 tristate "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller"
366 select SPI_FSL_CPM if FSL_SOC
368 This enables using the Freescale SPI controllers in master mode.
369 MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
370 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
371 This also enables using the Aeroflex Gaisler GRLIB SPI controller in
375 tristate "Freescale DSPI controller"
378 depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || M5441x || COMPILE_TEST
380 This enables support for the Freescale DSPI controller in master
381 mode. VF610 platform uses the controller.
384 tristate "Freescale eSPI controller"
387 This enables using the Freescale eSPI controllers in master mode.
388 From MPC8536, 85xx platform uses the controller, and all P10xx,
389 P20xx, P30xx,P40xx, P50xx uses this controller.
391 config SPI_MESON_SPICC
392 tristate "Amlogic Meson SPICC controller"
393 depends on ARCH_MESON || COMPILE_TEST
395 This enables master mode support for the SPICC (SPI communication
396 controller) available in Amlogic Meson SoCs.
398 config SPI_MESON_SPIFC
399 tristate "Amlogic Meson SPIFC controller"
400 depends on ARCH_MESON || COMPILE_TEST
403 This enables master mode support for the SPIFC (SPI flash
404 controller) available in Amlogic Meson SoCs.
407 tristate "MediaTek SPI controller"
408 depends on ARCH_MEDIATEK || COMPILE_TEST
410 This selects the MediaTek(R) SPI bus driver.
411 If you want to use MediaTek(R) SPI interface,
412 say Y or M here.If you are not sure, say N.
413 SPI drivers for Mediatek MT65XX and MT81XX series ARM SoCs.
416 tristate "Nuvoton NUC900 series SPI"
417 depends on ARCH_W90X900
420 SPI driver for Nuvoton NUC900 series ARM SoCs
422 config SPI_LANTIQ_SSC
423 tristate "Lantiq SSC SPI controller"
424 depends on LANTIQ || COMPILE_TEST
426 This driver supports the Lantiq SSC SPI controller in master
427 mode. This controller is found on Intel (former Lantiq) SoCs like
428 the Danube, Falcon, xRX200, xRX300.
431 tristate "OpenCores tiny SPI"
432 depends on GPIOLIB || COMPILE_TEST
435 This is the driver for OpenCores tiny SPI master controller.
438 tristate "Cavium OCTEON SPI controller"
439 depends on CAVIUM_OCTEON_SOC
441 SPI host driver for the hardware found on some Cavium OCTEON
444 config SPI_OMAP_UWIRE
445 tristate "OMAP1 MicroWire"
446 depends on ARCH_OMAP1
449 This hooks up to the MicroWire controller on OMAP1 chips.
452 tristate "McSPI driver for OMAP"
454 depends on ARCH_OMAP2PLUS || COMPILE_TEST
457 SPI master controller for OMAP24XX and later Multichannel SPI
461 tristate "DRA7xxx QSPI controller support"
463 depends on ARCH_OMAP2PLUS || COMPILE_TEST
465 QSPI master controller for DRA7xxx used for flash devices.
466 This device supports single, dual and quad read support, while
467 it only supports single write mode.
470 tristate "OMAP SPI 100K"
471 depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST
473 OMAP SPI 100K master controller for omap7xx boards.
476 tristate "Orion SPI master"
477 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
479 This enables using the SPI master controller on the Orion
483 tristate "Microchip PIC32 series SPI"
484 depends on MACH_PIC32 || COMPILE_TEST
486 SPI driver for Microchip PIC32 SPI master controller.
489 tristate "Microchip PIC32 Quad SPI driver"
490 depends on MACH_PIC32 || COMPILE_TEST
493 SPI driver for PIC32 Quad SPI controller.
496 tristate "ARM AMBA PL022 SSP controller"
498 default y if MACH_U300
499 default y if ARCH_REALVIEW
500 default y if INTEGRATOR_IMPD1
501 default y if ARCH_VERSATILE
503 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
504 controller. If you have an embedded system with an AMBA(R)
505 bus and a PL022 controller, say Y or M here.
508 tristate "PPC4xx SPI Controller"
509 depends on PPC32 && 4xx
512 This selects a driver for the PPC4xx SPI Controller.
515 tristate "PXA2xx SSP SPI master"
516 depends on (ARCH_PXA || ARCH_MMP || PCI || ACPI)
517 select PXA_SSP if ARCH_PXA || ARCH_MMP
519 This enables using a PXA2xx or Sodaville SSP port as a SPI master
520 controller. The driver can be configured to use any SSP port and
521 additional documentation can be found a Documentation/spi/pxa2xx.
523 config SPI_PXA2XX_PCI
524 def_tristate SPI_PXA2XX && PCI && COMMON_CLK
527 tristate "Rockchip SPI controller driver"
529 This selects a driver for Rockchip SPI controller.
531 If you say yes to this option, support will be included for
532 RK3066, RK3188 and RK3288 families of SPI controller.
533 Rockchip SPI controller support DMA transport and PIO mode.
534 The main usecase of this controller is to use spi flash as boot
538 tristate "Mikrotik RB4XX SPI master"
539 depends on SPI_MASTER && ATH79
541 SPI controller driver for the Mikrotik RB4xx series boards.
544 tristate "Renesas RSPI/QSPI controller"
545 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
547 SPI driver for Renesas RSPI and QSPI blocks.
550 tristate "Qualcomm SPI controller with QUP interface"
551 depends on ARCH_QCOM || (ARM && COMPILE_TEST)
553 Qualcomm Universal Peripheral (QUP) core is an AHB slave that
554 provides a common data path (an output FIFO and an input FIFO)
555 for serial peripheral interface (SPI) mini-core. SPI in master
556 mode supports up to 50MHz, up to four chip selects, programmable
557 data path from 4 bits to 32 bits and numerous protocol variants.
559 This driver can also be built as a module. If so, the module
560 will be called spi_qup.
563 tristate "Samsung S3C24XX series SPI"
564 depends on ARCH_S3C24XX
567 SPI driver for Samsung S3C24XX series ARM SoCs
569 config SPI_S3C24XX_FIQ
570 bool "S3C24XX driver with FIQ pseudo-DMA"
571 depends on SPI_S3C24XX
574 Enable FIQ support for the S3C24XX SPI driver to provide pseudo
575 DMA by using the fast-interrupt request framework, This allows
576 the driver to get DMA-like performance when there are either
577 no free DMA channels, or when doing transfers that required both
578 TX and RX data paths.
581 tristate "Samsung S3C64XX series type SPI"
582 depends on (PLAT_SAMSUNG || ARCH_EXYNOS || COMPILE_TEST)
584 SPI driver for Samsung S3C64XX and newer SoCs.
587 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
590 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
593 tristate "SuperH MSIOF SPI controller"
594 depends on HAVE_CLK && HAS_DMA
595 depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
597 SPI driver for SuperH and SH Mobile MSIOF blocks.
600 tristate "SuperH SPI controller"
601 depends on SUPERH || COMPILE_TEST
603 SPI driver for SuperH SPI blocks.
606 tristate "SuperH SCI SPI controller"
610 SPI driver for SuperH SCI blocks.
613 tristate "SuperH HSPI controller"
614 depends on ARCH_RENESAS || COMPILE_TEST
616 SPI driver for SuperH HSPI blocks.
619 tristate "CSR SiRFprimaII SPI controller"
623 SPI driver for CSR SiRFprimaII SoCs
626 tristate "Spreadtrum ADI controller"
627 depends on ARCH_SPRD || COMPILE_TEST
628 depends on HWSPINLOCK || (COMPILE_TEST && !HWSPINLOCK)
630 ADI driver based on SPI for Spreadtrum SoCs.
633 tristate "STMicroelectronics STM32 SPI controller"
634 depends on ARCH_STM32 || COMPILE_TEST
636 SPI driver for STMicroelectonics STM32 SoCs.
638 STM32 SPI controller supports DMA and PIO modes. When DMA
639 is not available, the driver automatically falls back to
643 tristate "STMicroelectronics SPI SSC-based driver"
644 depends on ARCH_STI || COMPILE_TEST
646 STMicroelectronics SoCs support for SPI. If you say yes to
647 this option, support will be included for the SSC driven SPI.
650 tristate "Allwinner A10 SoCs SPI controller"
651 depends on ARCH_SUNXI || COMPILE_TEST
653 SPI driver for Allwinner sun4i, sun5i and sun7i SoCs
656 tristate "Allwinner A31 SPI controller"
657 depends on ARCH_SUNXI || COMPILE_TEST
658 depends on RESET_CONTROLLER
660 This enables using the SPI controller on the Allwinner A31 SoCs.
663 tristate "Freescale MXS SPI controller"
667 SPI driver for Freescale MXS devices.
670 tristate "NVIDIA Tegra114 SPI Controller"
671 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
672 depends on RESET_CONTROLLER && HAS_DMA
674 SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller
675 is different than the older SoCs SPI controller and also register interface
676 get changed with this controller.
678 config SPI_TEGRA20_SFLASH
679 tristate "Nvidia Tegra20 Serial flash Controller"
680 depends on ARCH_TEGRA || COMPILE_TEST
681 depends on RESET_CONTROLLER
683 SPI driver for Nvidia Tegra20 Serial flash Controller interface.
684 The main usecase of this controller is to use spi flash as boot
687 config SPI_TEGRA20_SLINK
688 tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
689 depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
690 depends on RESET_CONTROLLER && HAS_DMA
692 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
695 tristate "Cavium ThunderX SPI controller"
696 depends on PCI && 64BIT && (ARM64 || COMPILE_TEST)
698 SPI host driver for the hardware found on Cavium ThunderX
701 config SPI_TOPCLIFF_PCH
702 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
703 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
705 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
706 used in some x86 embedded processors.
708 This driver also supports the ML7213/ML7223/ML7831, a companion chip
709 for the Atom E6xx series and compatible with the Intel EG20T PCH.
712 tristate "Toshiba TXx9 SPI controller"
713 depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST)
715 SPI driver for Toshiba TXx9 MIPS SoCs
718 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
721 Support for the SPI-I2C bridge found on the Analog Devices
722 AD-FMCOMMS1-EBZ board.
725 tristate "Xilinx SPI controller common module"
729 This exposes the SPI controller IP from the Xilinx EDK.
731 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
732 Product Specification document (DS464) for hardware details.
734 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
737 tristate "Netlogic XLP SPI controller driver"
738 depends on CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST
740 Enable support for the SPI controller on the Netlogic XLP SoCs.
741 Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, XLP9XX
744 If you have a Netlogic XLP platform say Y here.
747 config SPI_XTENSA_XTFPGA
748 tristate "Xtensa SPI controller for xtfpga"
749 depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST
752 SPI driver for xtfpga SPI master controller.
754 This simple SPI master controller is built into xtfpga bitstreams
755 and is used to control daughterboard audio codec. It always transfers
756 16 bit words in SPI mode 0, automatically asserting CS on transfer
757 start and deasserting on end.
759 config SPI_ZYNQMP_GQSPI
760 tristate "Xilinx ZynqMP GQSPI controller"
761 depends on SPI_MASTER && HAS_DMA
763 Enables Xilinx GQSPI controller driver for Zynq UltraScale+ MPSoC.
766 # Add new SPI master controllers in alphabetical order above this line
770 # There are lots of SPI device types, with sensors and memory
771 # being probably the most widely used ones.
773 comment "SPI Protocol Masters"
776 tristate "User mode SPI device driver support"
778 This supports user mode SPI protocol drivers.
780 Note that this application programming interface is EXPERIMENTAL
781 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
783 config SPI_LOOPBACK_TEST
784 tristate "spi loopback test framework support"
787 This enables the SPI loopback testing framework driver
789 primarily used for development of spi_master drivers
790 and to detect regressions
793 tristate "Infineon TLE62X0 (for power switching)"
796 SPI driver for Infineon TLE62X0 series line driver chips,
797 such as the TLE6220, TLE6230 and TLE6240. This provides a
798 sysfs interface, with each line presented as a kind of GPIO
799 exposing both switch control and diagnostic feedback.
802 # Add new SPI protocol masters in alphabetical order above this line
808 # SLAVE side ... listening to other SPI masters
812 bool "SPI slave protocol handlers"
814 If your system has a slave-capable SPI controller, you can enable
815 slave protocol handlers.
819 config SPI_SLAVE_TIME
820 tristate "SPI slave handler reporting boot up time"
822 SPI slave handler responding with the time of reception of the last
825 config SPI_SLAVE_SYSTEM_CONTROL
826 tristate "SPI slave handler controlling system state"
828 SPI slave handler to allow remote control of system reboot, power
829 off, halt, and suspend.