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David Brownell8ae12a02006-01-08 13:34:19 -08001#
2# SPI driver configuration
3#
4# NOTE: the reason this doesn't show SPI slave support is mostly that
5# nobody's needed a slave side API yet. The master-role API is not
6# fully appropriate there, so it'd need some thought to do well.
7#
Alessandro Guido79d8c7a2008-04-28 02:14:16 -07008menuconfig SPI
David Brownell8ae12a02006-01-08 13:34:19 -08009 bool "SPI support"
Alessandro Guido79d8c7a2008-04-28 02:14:16 -070010 depends on HAS_IOMEM
David Brownell8ae12a02006-01-08 13:34:19 -080011 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
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +010018 SPI is widely used by microcontrollers to talk with sensors,
David Brownell8ae12a02006-01-08 13:34:19 -080019 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
Alessandro Guido79d8c7a2008-04-28 02:14:16 -070029if SPI
30
David Brownell8ae12a02006-01-08 13:34:19 -080031config SPI_DEBUG
32 boolean "Debug support for SPI drivers"
Alessandro Guido79d8c7a2008-04-28 02:14:16 -070033 depends on DEBUG_KERNEL
David Brownell8ae12a02006-01-08 13:34:19 -080034 help
35 Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
36 sysfs, and debugfs support in SPI controller and protocol drivers.
37
38#
39# MASTER side ... talking to discrete SPI slave chips including microcontrollers
40#
41
42config SPI_MASTER
43# boolean "SPI Master Support"
44 boolean
45 default SPI
46 help
47 If your system has an master-capable SPI controller (which
48 provides the clock and chipselect), you can enable that
49 controller and the protocol drivers for the SPI slave chips
50 that are connected.
51
Robert P. J. Day6291fe22008-07-23 21:29:53 -070052if SPI_MASTER
53
David Brownell8ae12a02006-01-08 13:34:19 -080054comment "SPI Master Controller Drivers"
David Brownell8ae12a02006-01-08 13:34:19 -080055
Haavard Skinnemoen754ce4f2007-02-14 00:33:09 -080056config SPI_ATMEL
57 tristate "Atmel SPI Controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -070058 depends on (ARCH_AT91 || AVR32)
Haavard Skinnemoen754ce4f2007-02-14 00:33:09 -080059 help
60 This selects a driver for the Atmel SPI Controller, present on
61 many AT32 (AVR32) and AT91 (ARM) chips.
62
Wu, Bryana5f6abd2007-05-06 14:50:34 -070063config SPI_BFIN
64 tristate "SPI controller driver for ADI Blackfin5xx"
Robert P. J. Day6291fe22008-07-23 21:29:53 -070065 depends on BLACKFIN
Wu, Bryana5f6abd2007-05-06 14:50:34 -070066 help
67 This is the SPI controller master driver for Blackfin 5xx processor.
68
Jan Nikitenko63bd2352007-05-08 00:32:25 -070069config SPI_AU1550
70 tristate "Au1550/Au12x0 SPI Controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -070071 depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
Jan Nikitenko63bd2352007-05-08 00:32:25 -070072 select SPI_BITBANG
73 help
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).
76
77 This driver can also be built as a module. If so, the module
78 will be called au1550_spi.
79
David Brownell9904f222006-01-08 13:34:26 -080080config SPI_BITBANG
David Brownelld29389d2009-01-06 14:41:41 -080081 tristate "Utilities for Bitbanging SPI masters"
David Brownell9904f222006-01-08 13:34:26 -080082 help
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.
88
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.
David Brownell8ae12a02006-01-08 13:34:19 -080092
David Brownell71117632006-01-08 13:34:29 -080093config SPI_BUTTERFLY
94 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
Robert P. J. Day6291fe22008-07-23 21:29:53 -070095 depends on PARPORT
David Brownell71117632006-01-08 13:34:29 -080096 select SPI_BITBANG
97 help
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.
102
David Brownelld29389d2009-01-06 14:41:41 -0800103config SPI_GPIO
104 tristate "GPIO-based bitbanging SPI Master"
105 depends on GENERIC_GPIO
106 select SPI_BITBANG
107 help
108 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
109 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
110 slaves connected to a bus using this driver are configured as usual,
111 except that the spi_board_info.controller_data holds the GPIO number
112 for the chipselect used by this controller driver.
113
114 Note that this driver often won't achieve even 1 Mbit/sec speeds,
115 making it unusually slow for SPI. If your platform can inline
116 GPIO operations, you should be able to leverage that for better
117 speed with a custom version of this driver; see the source code.
118
Sascha Hauerb5f32942009-09-22 16:46:02 -0700119config SPI_IMX
120 tristate "Freescale i.MX SPI controllers"
121 depends on ARCH_MXC
122 select SPI_BITBANG
123 help
124 This enables using the Freescale i.MX SPI controllers in master
125 mode.
126
Kaiwan N Billimoria78961a52007-07-17 04:04:05 -0700127config SPI_LM70_LLP
128 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700129 depends on PARPORT && EXPERIMENTAL
Kaiwan N Billimoria78961a52007-07-17 04:04:05 -0700130 select SPI_BITBANG
131 help
132 This driver supports the NS LM70 LLP Evaluation Board,
133 which interfaces to an LM70 temperature sensor using
134 a parallel port.
135
Grant Likely42bbb702009-11-04 15:34:18 -0700136config SPI_MPC52xx
137 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
138 depends on PPC_MPC52xx && SPI
139 select SPI_MASTER_OF
140 help
141 This drivers supports the MPC52xx SPI controller in master SPI
142 mode.
143
Dragos Carp00b8fd22007-05-10 22:22:52 -0700144config SPI_MPC52xx_PSC
145 tristate "Freescale MPC52xx PSC SPI controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700146 depends on PPC_MPC52xx && EXPERIMENTAL
Dragos Carp00b8fd22007-05-10 22:22:52 -0700147 help
148 This enables using the Freescale MPC52xx Programmable Serial
149 Controller in master SPI mode.
150
Anton Vorontsov575c5802009-06-18 16:49:08 -0700151config SPI_MPC8xxx
Anton Vorontsov9e04b332009-06-18 16:48:59 -0700152 tristate "Freescale MPC8xxx SPI controller"
153 depends on FSL_SOC
Kumar Galaccf06992006-05-20 15:00:15 -0700154 help
Anton Vorontsov9e04b332009-06-18 16:48:59 -0700155 This enables using the Freescale MPC8xxx SPI controllers in master
156 mode.
Kumar Galaccf06992006-05-20 15:00:15 -0700157
Anton Vorontsov9e04b332009-06-18 16:48:59 -0700158 This driver uses a simple set of shift registers for data (opposed
159 to the CPM based descriptor model).
Kumar Galaccf06992006-05-20 15:00:15 -0700160
David Brownellfdb3c182007-02-12 00:52:37 -0800161config SPI_OMAP_UWIRE
162 tristate "OMAP1 MicroWire"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700163 depends on ARCH_OMAP1
David Brownellfdb3c182007-02-12 00:52:37 -0800164 select SPI_BITBANG
165 help
166 This hooks up to the MicroWire controller on OMAP1 chips.
167
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700168config SPI_OMAP24XX
Girishccc7bae2008-02-06 01:38:16 -0800169 tristate "McSPI driver for OMAP24xx/OMAP34xx"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700170 depends on ARCH_OMAP24XX || ARCH_OMAP34XX
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700171 help
Girishccc7bae2008-02-06 01:38:16 -0800172 SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700173 (McSPI) modules.
Andrea Paterniani69c202a2007-02-12 00:52:39 -0800174
Shadi Ammouri60cadec2008-08-05 13:01:09 -0700175config SPI_ORION
176 tristate "Orion SPI master (EXPERIMENTAL)"
177 depends on PLAT_ORION && EXPERIMENTAL
178 help
179 This enables using the SPI master controller on the Orion chips.
180
Linus Walleijb43d65f2009-06-09 08:11:42 +0100181config SPI_PL022
182 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
183 depends on ARM_AMBA && EXPERIMENTAL
184 default y if MACH_U300
linus.walleij@stericsson.comf33b29e2009-09-22 16:46:01 -0700185 default y if ARCH_REALVIEW
186 default y if INTEGRATOR_IMPD1
187 default y if ARCH_VERSATILE
Linus Walleijb43d65f2009-06-09 08:11:42 +0100188 help
189 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
190 controller. If you have an embedded system with an AMBA(R)
191 bus and a PL022 controller, say Y or M here.
192
Steven A. Falco44dab882009-09-22 16:45:58 -0700193config SPI_PPC4xx
194 tristate "PPC4xx SPI Controller"
195 depends on PPC32 && 4xx && SPI_MASTER
196 select SPI_BITBANG
197 help
198 This selects a driver for the PPC4xx SPI Controller.
199
Stephen Streete0c99052006-03-07 23:53:24 -0800200config SPI_PXA2XX
201 tristate "PXA2xx SSP SPI master"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700202 depends on ARCH_PXA && EXPERIMENTAL
eric miao2f1a74e2007-11-21 18:50:53 +0800203 select PXA_SSP
Stephen Streete0c99052006-03-07 23:53:24 -0800204 help
205 This enables using a PXA2xx SSP port as a SPI master controller.
206 The driver can be configured to use any SSP port and additional
207 documentation can be found a Documentation/spi/pxa2xx.
208
David Brownell85abfaa2007-02-12 00:52:36 -0800209config SPI_S3C24XX
210 tristate "Samsung S3C24XX series SPI"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700211 depends on ARCH_S3C2410 && EXPERIMENTAL
David Brownellda0abc22007-07-17 04:04:09 -0700212 select SPI_BITBANG
David Brownell85abfaa2007-02-12 00:52:36 -0800213 help
214 SPI driver for Samsung S3C24XX series ARM SoCs
215
Ben Dooks1fc75472006-05-20 15:00:17 -0700216config SPI_S3C24XX_GPIO
217 tristate "Samsung S3C24XX series SPI by GPIO"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700218 depends on ARCH_S3C2410 && EXPERIMENTAL
David Brownellda0abc22007-07-17 04:04:09 -0700219 select SPI_BITBANG
Ben Dooks1fc75472006-05-20 15:00:17 -0700220 help
221 SPI driver for Samsung S3C24XX series ARM SoCs using
222 GPIO lines to provide the SPI bus. This can be used where
223 the inbuilt hardware cannot provide the transfer mode, or
224 where the board is using non hardware connected pins.
Andrei Konovalovae918c02007-07-17 04:04:11 -0700225
Magnus Damm37e46642008-02-06 01:38:15 -0800226config SPI_SH_SCI
227 tristate "SuperH SCI SPI controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700228 depends on SUPERH
Magnus Damm37e46642008-02-06 01:38:15 -0800229 select SPI_BITBANG
230 help
231 SPI driver for SuperH SCI blocks.
232
dmitry pervushin0644c482009-09-22 16:46:15 -0700233config SPI_STMP3XXX
234 tristate "Freescale STMP37xx/378x SPI/SSP controller"
235 depends on ARCH_STMP3XXX && SPI_MASTER
236 help
237 SPI driver for Freescale STMP37xx/378x SoC SSP interface
238
Atsushi Nemotof2cac672007-07-17 04:04:15 -0700239config SPI_TXX9
240 tristate "Toshiba TXx9 SPI controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700241 depends on GENERIC_GPIO && CPU_TX49XX
Atsushi Nemotof2cac672007-07-17 04:04:15 -0700242 help
243 SPI driver for Toshiba TXx9 MIPS SoCs
244
Andrei Konovalovae918c02007-07-17 04:04:11 -0700245config SPI_XILINX
Richard Röjforsc9da2e12009-11-13 12:28:55 +0100246 tristate "Xilinx SPI controller common module"
Richard Röjfors86fc5932009-11-13 12:28:49 +0100247 depends on HAS_IOMEM && EXPERIMENTAL
Andrei Konovalovae918c02007-07-17 04:04:11 -0700248 select SPI_BITBANG
Richard Röjforsd5af91a2009-11-13 12:28:39 +0100249 select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
Andrei Konovalovae918c02007-07-17 04:04:11 -0700250 help
251 This exposes the SPI controller IP from the Xilinx EDK.
252
253 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
254 Product Specification document (DS464) for hardware details.
255
Richard Röjforsc9da2e12009-11-13 12:28:55 +0100256 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
257
Richard Röjforsd5af91a2009-11-13 12:28:39 +0100258config SPI_XILINX_OF
259 tristate "Xilinx SPI controller OF device"
260 depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
261 help
262 This is the OF driver for the SPI controller IP from the Xilinx EDK.
263
Richard Röjfors77166932009-11-13 12:29:00 +0100264config SPI_XILINX_PLTFM
265 tristate "Xilinx SPI controller platform device"
266 depends on SPI_XILINX
267 help
268 This is the platform driver for the SPI controller IP
269 from the Xilinx EDK.
270
David Brownell8ae12a02006-01-08 13:34:19 -0800271#
272# Add new SPI master controllers in alphabetical order above this line
273#
274
David Brownell8ae12a02006-01-08 13:34:19 -0800275#
276# There are lots of SPI device types, with sensors and memory
277# being probably the most widely used ones.
278#
279comment "SPI Protocol Masters"
David Brownell8ae12a02006-01-08 13:34:19 -0800280
Andrea Paterniani814a8d52007-05-08 00:32:15 -0700281config SPI_SPIDEV
282 tristate "User mode SPI device driver support"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700283 depends on EXPERIMENTAL
Andrea Paterniani814a8d52007-05-08 00:32:15 -0700284 help
285 This supports user mode SPI protocol drivers.
286
287 Note that this application programming interface is EXPERIMENTAL
288 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
289
Ben Dooks447aef12007-07-17 04:04:10 -0700290config SPI_TLE62X0
291 tristate "Infineon TLE62X0 (for power switching)"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700292 depends on SYSFS
Ben Dooks447aef12007-07-17 04:04:10 -0700293 help
294 SPI driver for Infineon TLE62X0 series line driver chips,
295 such as the TLE6220, TLE6230 and TLE6240. This provides a
296 sysfs interface, with each line presented as a kind of GPIO
297 exposing both switch control and diagnostic feedback.
298
David Brownell8ae12a02006-01-08 13:34:19 -0800299#
300# Add new SPI protocol masters in alphabetical order above this line
301#
302
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700303endif # SPI_MASTER
304
David Brownell8ae12a02006-01-08 13:34:19 -0800305# (slave support would go here)
306
Alessandro Guido79d8c7a2008-04-28 02:14:16 -0700307endif # SPI