2 # SPI driver configuration
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.
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.
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.
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.
32 boolean "Debug support for SPI drivers"
33 depends on DEBUG_KERNEL
35 Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
36 sysfs, and debugfs support in SPI controller and protocol drivers.
39 # MASTER side ... talking to discrete SPI slave chips including microcontrollers
43 # boolean "SPI Master Support"
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
54 comment "SPI Master Controller Drivers"
57 tristate "Atmel SPI Controller"
58 depends on (ARCH_AT91 || AVR32)
60 This selects a driver for the Atmel SPI Controller, present on
61 many AT32 (AVR32) and AT91 (ARM) chips.
64 tristate "SPI controller driver for ADI Blackfin5xx"
67 This is the SPI controller master driver for Blackfin 5xx processor.
70 tristate "Au1550/Au12x0 SPI Controller"
71 depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
74 If you say yes to this option, support will be included for the
75 Au1550 SPI controller (may also work with Au1200,Au1210,Au1250).
77 This driver can also be built as a module. If so, the module
78 will be called au1550_spi.
81 tristate "Utilities for Bitbanging SPI masters"
83 With a few GPIO pins, your system can bitbang the SPI protocol.
84 Select this to get SPI support through I/O pins (GPIO, parallel
85 port, etc). Or, some systems' SPI master controller drivers use
86 this code to manage the per-word or per-transfer accesses to the
87 hardware shift registers.
89 This is library code, and is automatically selected by drivers that
90 need it. You only need to select this explicitly to support driver
91 modules that aren't part of this kernel tree.
94 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
98 This uses a custom parallel port cable to connect to an AVR
99 Butterfly <http://www.atmel.com/products/avr/butterfly>, an
100 inexpensive battery powered microcontroller evaluation board.
101 This same cable can be used to flash new firmware.
104 tristate "SPI controller driver for DaVinci/DA8xx SoC's"
105 depends on SPI_MASTER && ARCH_DAVINCI
108 SPI master controller for DaVinci and DA8xx SPI modules.
111 tristate "GPIO-based bitbanging SPI Master"
112 depends on GENERIC_GPIO
115 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
116 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
117 slaves connected to a bus using this driver are configured as usual,
118 except that the spi_board_info.controller_data holds the GPIO number
119 for the chipselect used by this controller driver.
121 Note that this driver often won't achieve even 1 Mbit/sec speeds,
122 making it unusually slow for SPI. If your platform can inline
123 GPIO operations, you should be able to leverage that for better
124 speed with a custom version of this driver; see the source code.
127 tristate "Freescale i.MX SPI controllers"
131 This enables using the Freescale i.MX SPI controllers in master
135 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
136 depends on PARPORT && EXPERIMENTAL
139 This driver supports the NS LM70 LLP Evaluation Board,
140 which interfaces to an LM70 temperature sensor using
144 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
145 depends on PPC_MPC52xx && SPI
148 This drivers supports the MPC52xx SPI controller in master SPI
151 config SPI_MPC52xx_PSC
152 tristate "Freescale MPC52xx PSC SPI controller"
153 depends on PPC_MPC52xx && EXPERIMENTAL
155 This enables using the Freescale MPC52xx Programmable Serial
156 Controller in master SPI mode.
159 tristate "Freescale MPC8xxx SPI controller"
162 This enables using the Freescale MPC8xxx SPI controllers in master
165 config SPI_OMAP_UWIRE
166 tristate "OMAP1 MicroWire"
167 depends on ARCH_OMAP1
170 This hooks up to the MicroWire controller on OMAP1 chips.
173 tristate "McSPI driver for OMAP24xx/OMAP34xx"
174 depends on ARCH_OMAP24XX || ARCH_OMAP34XX
176 SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
180 tristate "OMAP SPI 100K"
181 depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
183 OMAP SPI 100K master controller for omap7xx boards.
186 tristate "Orion SPI master (EXPERIMENTAL)"
187 depends on PLAT_ORION && EXPERIMENTAL
189 This enables using the SPI master controller on the Orion chips.
192 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
193 depends on ARM_AMBA && EXPERIMENTAL
194 default y if MACH_U300
195 default y if ARCH_REALVIEW
196 default y if INTEGRATOR_IMPD1
197 default y if ARCH_VERSATILE
199 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
200 controller. If you have an embedded system with an AMBA(R)
201 bus and a PL022 controller, say Y or M here.
204 tristate "PPC4xx SPI Controller"
205 depends on PPC32 && 4xx && SPI_MASTER
208 This selects a driver for the PPC4xx SPI Controller.
211 tristate "PXA2xx SSP SPI master"
212 depends on ARCH_PXA && EXPERIMENTAL
215 This enables using a PXA2xx SSP port as a SPI master controller.
216 The driver can be configured to use any SSP port and additional
217 documentation can be found a Documentation/spi/pxa2xx.
220 tristate "Samsung S3C24XX series SPI"
221 depends on ARCH_S3C2410 && EXPERIMENTAL
224 SPI driver for Samsung S3C24XX series ARM SoCs
226 config SPI_S3C24XX_FIQ
227 bool "S3C24XX driver with FIQ pseudo-DMA"
228 depends on SPI_S3C24XX
231 Enable FIQ support for the S3C24XX SPI driver to provide pseudo
232 DMA by using the fast-interrupt request framework, This allows
233 the driver to get DMA-like performance when there are either
234 no free DMA channels, or when doing transfers that required both
235 TX and RX data paths.
237 config SPI_S3C24XX_GPIO
238 tristate "Samsung S3C24XX series SPI by GPIO"
239 depends on ARCH_S3C2410 && EXPERIMENTAL
242 SPI driver for Samsung S3C24XX series ARM SoCs using
243 GPIO lines to provide the SPI bus. This can be used where
244 the inbuilt hardware cannot provide the transfer mode, or
245 where the board is using non hardware connected pins.
248 tristate "Samsung S3C64XX series type SPI"
249 depends on ARCH_S3C64XX && EXPERIMENTAL
252 SPI driver for Samsung S3C64XX and newer SoCs.
255 tristate "SuperH MSIOF SPI controller"
256 depends on SUPERH && HAVE_CLK
259 SPI driver for SuperH MSIOF blocks.
262 tristate "SuperH SCI SPI controller"
266 SPI driver for SuperH SCI blocks.
269 tristate "Freescale STMP37xx/378x SPI/SSP controller"
270 depends on ARCH_STMP3XXX && SPI_MASTER
272 SPI driver for Freescale STMP37xx/378x SoC SSP interface
275 tristate "Toshiba TXx9 SPI controller"
276 depends on GENERIC_GPIO && CPU_TX49XX
278 SPI driver for Toshiba TXx9 MIPS SoCs
281 tristate "Xilinx SPI controller common module"
282 depends on HAS_IOMEM && EXPERIMENTAL
284 select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
286 This exposes the SPI controller IP from the Xilinx EDK.
288 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
289 Product Specification document (DS464) for hardware details.
291 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
294 tristate "Xilinx SPI controller OF device"
295 depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
297 This is the OF driver for the SPI controller IP from the Xilinx EDK.
299 config SPI_XILINX_PLTFM
300 tristate "Xilinx SPI controller platform device"
301 depends on SPI_XILINX
303 This is the platform driver for the SPI controller IP
307 tristate "Nuvoton NUC900 series SPI"
308 depends on ARCH_W90X900 && EXPERIMENTAL
311 SPI driver for Nuvoton NUC900 series ARM SoCs
314 # Add new SPI master controllers in alphabetical order above this line
317 config SPI_DESIGNWARE
318 bool "DesignWare SPI controller core support"
319 depends on SPI_MASTER
321 general driver for SPI controller core from DesignWare
324 tristate "PCI interface driver for DW SPI core"
325 depends on SPI_DESIGNWARE && PCI
328 # There are lots of SPI device types, with sensors and memory
329 # being probably the most widely used ones.
331 comment "SPI Protocol Masters"
334 tristate "User mode SPI device driver support"
335 depends on EXPERIMENTAL
337 This supports user mode SPI protocol drivers.
339 Note that this application programming interface is EXPERIMENTAL
340 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
343 tristate "Infineon TLE62X0 (for power switching)"
346 SPI driver for Infineon TLE62X0 series line driver chips,
347 such as the TLE6220, TLE6230 and TLE6240. This provides a
348 sysfs interface, with each line presented as a kind of GPIO
349 exposing both switch control and diagnostic feedback.
352 # Add new SPI protocol masters in alphabetical order above this line
357 # (slave support would go here)