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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
52comment "SPI Master Controller Drivers"
53 depends on SPI_MASTER
54
Haavard Skinnemoen754ce4f2007-02-14 00:33:09 -080055config SPI_ATMEL
56 tristate "Atmel SPI Controller"
57 depends on (ARCH_AT91 || AVR32) && SPI_MASTER
58 help
59 This selects a driver for the Atmel SPI Controller, present on
60 many AT32 (AVR32) and AT91 (ARM) chips.
61
Wu, Bryana5f6abd2007-05-06 14:50:34 -070062config SPI_BFIN
63 tristate "SPI controller driver for ADI Blackfin5xx"
Mike Frysinger529a73f2007-11-23 14:28:44 +080064 depends on SPI_MASTER && BLACKFIN
Wu, Bryana5f6abd2007-05-06 14:50:34 -070065 help
66 This is the SPI controller master driver for Blackfin 5xx processor.
67
Jan Nikitenko63bd2352007-05-08 00:32:25 -070068config SPI_AU1550
69 tristate "Au1550/Au12x0 SPI Controller"
70 depends on SPI_MASTER && (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
71 select SPI_BITBANG
72 help
73 If you say yes to this option, support will be included for the
74 Au1550 SPI controller (may also work with Au1200,Au1210,Au1250).
75
76 This driver can also be built as a module. If so, the module
77 will be called au1550_spi.
78
David Brownell9904f222006-01-08 13:34:26 -080079config SPI_BITBANG
80 tristate "Bitbanging SPI master"
81 depends on SPI_MASTER && EXPERIMENTAL
82 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)"
95 depends on SPI_MASTER && PARPORT && EXPERIMENTAL
96 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
Andrea Paterniani69c202a2007-02-12 00:52:39 -0800103config SPI_IMX
104 tristate "Freescale iMX SPI controller"
105 depends on SPI_MASTER && ARCH_IMX && EXPERIMENTAL
106 help
107 This enables using the Freescale iMX SPI controller in master
108 mode.
109
Kaiwan N Billimoria78961a52007-07-17 04:04:05 -0700110config SPI_LM70_LLP
111 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
112 depends on SPI_MASTER && PARPORT && EXPERIMENTAL
113 select SPI_BITBANG
114 help
115 This driver supports the NS LM70 LLP Evaluation Board,
116 which interfaces to an LM70 temperature sensor using
117 a parallel port.
118
Dragos Carp00b8fd22007-05-10 22:22:52 -0700119config SPI_MPC52xx_PSC
120 tristate "Freescale MPC52xx PSC SPI controller"
121 depends on SPI_MASTER && PPC_MPC52xx && EXPERIMENTAL
122 help
123 This enables using the Freescale MPC52xx Programmable Serial
124 Controller in master SPI mode.
125
Kumar Galaccf06992006-05-20 15:00:15 -0700126config SPI_MPC83xx
Anton Vorontsov328329a2007-10-16 01:27:47 -0700127 tristate "Freescale MPC83xx/QUICC Engine SPI controller"
128 depends on SPI_MASTER && (PPC_83xx || QUICC_ENGINE) && EXPERIMENTAL
Kumar Galaccf06992006-05-20 15:00:15 -0700129 help
Anton Vorontsov328329a2007-10-16 01:27:47 -0700130 This enables using the Freescale MPC83xx and QUICC Engine SPI
131 controllers in master mode.
Kumar Galaccf06992006-05-20 15:00:15 -0700132
133 Note, this driver uniquely supports the SPI controller on the MPC83xx
Anton Vorontsov328329a2007-10-16 01:27:47 -0700134 family of PowerPC processors, plus processors with QUICC Engine
135 technology. This driver uses a simple set of shift registers for data
136 (opposed to the CPM based descriptor model).
Kumar Galaccf06992006-05-20 15:00:15 -0700137
David Brownellfdb3c182007-02-12 00:52:37 -0800138config SPI_OMAP_UWIRE
139 tristate "OMAP1 MicroWire"
140 depends on SPI_MASTER && ARCH_OMAP1
141 select SPI_BITBANG
142 help
143 This hooks up to the MicroWire controller on OMAP1 chips.
144
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700145config SPI_OMAP24XX
Girishccc7bae2008-02-06 01:38:16 -0800146 tristate "McSPI driver for OMAP24xx/OMAP34xx"
147 depends on SPI_MASTER && (ARCH_OMAP24XX || ARCH_OMAP34XX)
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700148 help
Girishccc7bae2008-02-06 01:38:16 -0800149 SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
Samuel Ortizccdc7bf2007-07-17 04:04:13 -0700150 (McSPI) modules.
Andrea Paterniani69c202a2007-02-12 00:52:39 -0800151
Stephen Streete0c99052006-03-07 23:53:24 -0800152config SPI_PXA2XX
153 tristate "PXA2xx SSP SPI master"
154 depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL
eric miao2f1a74e2007-11-21 18:50:53 +0800155 select PXA_SSP
Stephen Streete0c99052006-03-07 23:53:24 -0800156 help
157 This enables using a PXA2xx SSP port as a SPI master controller.
158 The driver can be configured to use any SSP port and additional
159 documentation can be found a Documentation/spi/pxa2xx.
160
David Brownell85abfaa2007-02-12 00:52:36 -0800161config SPI_S3C24XX
162 tristate "Samsung S3C24XX series SPI"
163 depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL
David Brownellda0abc22007-07-17 04:04:09 -0700164 select SPI_BITBANG
David Brownell85abfaa2007-02-12 00:52:36 -0800165 help
166 SPI driver for Samsung S3C24XX series ARM SoCs
167
Ben Dooks1fc75472006-05-20 15:00:17 -0700168config SPI_S3C24XX_GPIO
169 tristate "Samsung S3C24XX series SPI by GPIO"
David Brownellda0abc22007-07-17 04:04:09 -0700170 depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL
171 select SPI_BITBANG
Ben Dooks1fc75472006-05-20 15:00:17 -0700172 help
173 SPI driver for Samsung S3C24XX series ARM SoCs using
174 GPIO lines to provide the SPI bus. This can be used where
175 the inbuilt hardware cannot provide the transfer mode, or
176 where the board is using non hardware connected pins.
Andrei Konovalovae918c02007-07-17 04:04:11 -0700177
Magnus Damm37e46642008-02-06 01:38:15 -0800178config SPI_SH_SCI
179 tristate "SuperH SCI SPI controller"
180 depends on SPI_MASTER && SUPERH
181 select SPI_BITBANG
182 help
183 SPI driver for SuperH SCI blocks.
184
Atsushi Nemotof2cac672007-07-17 04:04:15 -0700185config SPI_TXX9
186 tristate "Toshiba TXx9 SPI controller"
187 depends on SPI_MASTER && GENERIC_GPIO && CPU_TX49XX
188 help
189 SPI driver for Toshiba TXx9 MIPS SoCs
190
Andrei Konovalovae918c02007-07-17 04:04:11 -0700191config SPI_XILINX
192 tristate "Xilinx SPI controller"
193 depends on SPI_MASTER && XILINX_VIRTEX && EXPERIMENTAL
194 select SPI_BITBANG
195 help
196 This exposes the SPI controller IP from the Xilinx EDK.
197
198 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
199 Product Specification document (DS464) for hardware details.
200
David Brownell8ae12a02006-01-08 13:34:19 -0800201#
202# Add new SPI master controllers in alphabetical order above this line
203#
204
David Brownell8ae12a02006-01-08 13:34:19 -0800205#
206# There are lots of SPI device types, with sensors and memory
207# being probably the most widely used ones.
208#
209comment "SPI Protocol Masters"
210 depends on SPI_MASTER
211
David Brownellb587b132007-02-12 00:52:48 -0800212config SPI_AT25
213 tristate "SPI EEPROMs from most vendors"
214 depends on SPI_MASTER && SYSFS
215 help
216 Enable this driver to get read/write support to most SPI EEPROMs,
217 after you configure the board init code to know about each eeprom
218 on your target board.
219
220 This driver can also be built as a module. If so, the module
221 will be called at25.
David Brownell8ae12a02006-01-08 13:34:19 -0800222
Andrea Paterniani814a8d52007-05-08 00:32:15 -0700223config SPI_SPIDEV
224 tristate "User mode SPI device driver support"
225 depends on SPI_MASTER && EXPERIMENTAL
226 help
227 This supports user mode SPI protocol drivers.
228
229 Note that this application programming interface is EXPERIMENTAL
230 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
231
Ben Dooks447aef12007-07-17 04:04:10 -0700232config SPI_TLE62X0
233 tristate "Infineon TLE62X0 (for power switching)"
234 depends on SPI_MASTER && SYSFS
235 help
236 SPI driver for Infineon TLE62X0 series line driver chips,
237 such as the TLE6220, TLE6230 and TLE6240. This provides a
238 sysfs interface, with each line presented as a kind of GPIO
239 exposing both switch control and diagnostic feedback.
240
David Brownell8ae12a02006-01-08 13:34:19 -0800241#
242# Add new SPI protocol masters in alphabetical order above this line
243#
244
David Brownell8ae12a02006-01-08 13:34:19 -0800245# (slave support would go here)
246
Alessandro Guido79d8c7a2008-04-28 02:14:16 -0700247endif # SPI