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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
Andrea Paterniani69c202a2007-02-12 00:52:39 -0800119config SPI_IMX
120 tristate "Freescale iMX SPI controller"
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +0200121 depends on ARCH_MX1 && EXPERIMENTAL
Andrea Paterniani69c202a2007-02-12 00:52:39 -0800122 help
123 This enables using the Freescale iMX SPI controller in master
124 mode.
125
Kaiwan N Billimoria78961a52007-07-17 04:04:05 -0700126config SPI_LM70_LLP
127 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700128 depends on PARPORT && EXPERIMENTAL
Kaiwan N Billimoria78961a52007-07-17 04:04:05 -0700129 select SPI_BITBANG
130 help
131 This driver supports the NS LM70 LLP Evaluation Board,
132 which interfaces to an LM70 temperature sensor using
133 a parallel port.
134
Dragos Carp00b8fd22007-05-10 22:22:52 -0700135config SPI_MPC52xx_PSC
136 tristate "Freescale MPC52xx PSC SPI controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700137 depends on PPC_MPC52xx && EXPERIMENTAL
Dragos Carp00b8fd22007-05-10 22:22:52 -0700138 help
139 This enables using the Freescale MPC52xx Programmable Serial
140 Controller in master SPI mode.
141
Anton Vorontsov575c5802009-06-18 16:49:08 -0700142config SPI_MPC8xxx
Anton Vorontsov9e04b332009-06-18 16:48:59 -0700143 tristate "Freescale MPC8xxx SPI controller"
144 depends on FSL_SOC
Kumar Galaccf06992006-05-20 15:00:15 -0700145 help
Anton Vorontsov9e04b332009-06-18 16:48:59 -0700146 This enables using the Freescale MPC8xxx SPI controllers in master
147 mode.
Kumar Galaccf06992006-05-20 15:00:15 -0700148
Anton Vorontsov9e04b332009-06-18 16:48:59 -0700149 This driver uses a simple set of shift registers for data (opposed
150 to the CPM based descriptor model).
Kumar Galaccf06992006-05-20 15:00:15 -0700151
David Brownellfdb3c182007-02-12 00:52:37 -0800152config SPI_OMAP_UWIRE
153 tristate "OMAP1 MicroWire"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700154 depends on ARCH_OMAP1
David Brownellfdb3c182007-02-12 00:52:37 -0800155 select SPI_BITBANG
156 help
157 This hooks up to the MicroWire controller on OMAP1 chips.
158
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700159config SPI_OMAP24XX
Girishccc7bae2008-02-06 01:38:16 -0800160 tristate "McSPI driver for OMAP24xx/OMAP34xx"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700161 depends on ARCH_OMAP24XX || ARCH_OMAP34XX
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700162 help
Girishccc7bae2008-02-06 01:38:16 -0800163 SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700164 (McSPI) modules.
Andrea Paterniani69c202a2007-02-12 00:52:39 -0800165
Shadi Ammouri60cadec2008-08-05 13:01:09 -0700166config SPI_ORION
167 tristate "Orion SPI master (EXPERIMENTAL)"
168 depends on PLAT_ORION && EXPERIMENTAL
169 help
170 This enables using the SPI master controller on the Orion chips.
171
Linus Walleijb43d65f2009-06-09 08:11:42 +0100172config SPI_PL022
173 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
174 depends on ARM_AMBA && EXPERIMENTAL
175 default y if MACH_U300
176 help
177 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
178 controller. If you have an embedded system with an AMBA(R)
179 bus and a PL022 controller, say Y or M here.
180
Stephen Streete0c99052006-03-07 23:53:24 -0800181config SPI_PXA2XX
182 tristate "PXA2xx SSP SPI master"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700183 depends on ARCH_PXA && EXPERIMENTAL
eric miao2f1a74e2007-11-21 18:50:53 +0800184 select PXA_SSP
Stephen Streete0c99052006-03-07 23:53:24 -0800185 help
186 This enables using a PXA2xx SSP port as a SPI master controller.
187 The driver can be configured to use any SSP port and additional
188 documentation can be found a Documentation/spi/pxa2xx.
189
David Brownell85abfaa2007-02-12 00:52:36 -0800190config SPI_S3C24XX
191 tristate "Samsung S3C24XX series SPI"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700192 depends on ARCH_S3C2410 && EXPERIMENTAL
David Brownellda0abc22007-07-17 04:04:09 -0700193 select SPI_BITBANG
David Brownell85abfaa2007-02-12 00:52:36 -0800194 help
195 SPI driver for Samsung S3C24XX series ARM SoCs
196
Ben Dooks1fc75472006-05-20 15:00:17 -0700197config SPI_S3C24XX_GPIO
198 tristate "Samsung S3C24XX series SPI by GPIO"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700199 depends on ARCH_S3C2410 && EXPERIMENTAL
David Brownellda0abc22007-07-17 04:04:09 -0700200 select SPI_BITBANG
Ben Dooks1fc75472006-05-20 15:00:17 -0700201 help
202 SPI driver for Samsung S3C24XX series ARM SoCs using
203 GPIO lines to provide the SPI bus. This can be used where
204 the inbuilt hardware cannot provide the transfer mode, or
205 where the board is using non hardware connected pins.
Andrei Konovalovae918c02007-07-17 04:04:11 -0700206
Magnus Damm37e46642008-02-06 01:38:15 -0800207config SPI_SH_SCI
208 tristate "SuperH SCI SPI controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700209 depends on SUPERH
Magnus Damm37e46642008-02-06 01:38:15 -0800210 select SPI_BITBANG
211 help
212 SPI driver for SuperH SCI blocks.
213
Atsushi Nemotof2cac672007-07-17 04:04:15 -0700214config SPI_TXX9
215 tristate "Toshiba TXx9 SPI controller"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700216 depends on GENERIC_GPIO && CPU_TX49XX
Atsushi Nemotof2cac672007-07-17 04:04:15 -0700217 help
218 SPI driver for Toshiba TXx9 MIPS SoCs
219
Andrei Konovalovae918c02007-07-17 04:04:11 -0700220config SPI_XILINX
221 tristate "Xilinx SPI controller"
Michal Simek6fa612b2009-05-11 15:49:12 +0200222 depends on (XILINX_VIRTEX || MICROBLAZE) && EXPERIMENTAL
Andrei Konovalovae918c02007-07-17 04:04:11 -0700223 select SPI_BITBANG
224 help
225 This exposes the SPI controller IP from the Xilinx EDK.
226
227 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
228 Product Specification document (DS464) for hardware details.
229
David Brownell8ae12a02006-01-08 13:34:19 -0800230#
231# Add new SPI master controllers in alphabetical order above this line
232#
233
David Brownell8ae12a02006-01-08 13:34:19 -0800234#
235# There are lots of SPI device types, with sensors and memory
236# being probably the most widely used ones.
237#
238comment "SPI Protocol Masters"
David Brownell8ae12a02006-01-08 13:34:19 -0800239
Andrea Paterniani814a8d52007-05-08 00:32:15 -0700240config SPI_SPIDEV
241 tristate "User mode SPI device driver support"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700242 depends on EXPERIMENTAL
Andrea Paterniani814a8d52007-05-08 00:32:15 -0700243 help
244 This supports user mode SPI protocol drivers.
245
246 Note that this application programming interface is EXPERIMENTAL
247 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
248
Ben Dooks447aef12007-07-17 04:04:10 -0700249config SPI_TLE62X0
250 tristate "Infineon TLE62X0 (for power switching)"
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700251 depends on SYSFS
Ben Dooks447aef12007-07-17 04:04:10 -0700252 help
253 SPI driver for Infineon TLE62X0 series line driver chips,
254 such as the TLE6220, TLE6230 and TLE6240. This provides a
255 sysfs interface, with each line presented as a kind of GPIO
256 exposing both switch control and diagnostic feedback.
257
David Brownell8ae12a02006-01-08 13:34:19 -0800258#
259# Add new SPI protocol masters in alphabetical order above this line
260#
261
Robert P. J. Day6291fe22008-07-23 21:29:53 -0700262endif # SPI_MASTER
263
David Brownell8ae12a02006-01-08 13:34:19 -0800264# (slave support would go here)
265
Alessandro Guido79d8c7a2008-04-28 02:14:16 -0700266endif # SPI