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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#
8menu "SPI support"
Martin Schwidefskye25df122007-05-10 15:45:57 +02009 depends on HAS_IOMEM
David Brownell8ae12a02006-01-08 13:34:19 -080010
11config SPI
12 bool "SPI support"
13 help
14 The "Serial Peripheral Interface" is a low level synchronous
15 protocol. Chips that support SPI can have data transfer rates
16 up to several tens of Mbit/sec. Chips are addressed with a
17 controller and a chipselect. Most SPI slaves don't support
18 dynamic device discovery; some are even write-only or read-only.
19
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +010020 SPI is widely used by microcontrollers to talk with sensors,
David Brownell8ae12a02006-01-08 13:34:19 -080021 eeprom and flash memory, codecs and various other controller
22 chips, analog to digital (and d-to-a) converters, and more.
23 MMC and SD cards can be accessed using SPI protocol; and for
24 DataFlash cards used in MMC sockets, SPI must always be used.
25
26 SPI is one of a family of similar protocols using a four wire
27 interface (select, clock, data in, data out) including Microwire
28 (half duplex), SSP, SSI, and PSP. This driver framework should
29 work with most such devices and controllers.
30
31config SPI_DEBUG
32 boolean "Debug support for SPI drivers"
33 depends on SPI && DEBUG_KERNEL
34 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"
64 depends on SPI_MASTER && BFIN
65 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
127 tristate "Freescale MPC83xx SPI controller"
128 depends on SPI_MASTER && PPC_83xx && EXPERIMENTAL
129 select SPI_BITBANG
130 help
131 This enables using the Freescale MPC83xx SPI controller in master
132 mode.
133
134 Note, this driver uniquely supports the SPI controller on the MPC83xx
135 family of PowerPC processors. The MPC83xx uses a simple set of shift
136 registers for data (opposed to the CPM based descriptor model).
137
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
Andrea Paterniani69c202a2007-02-12 00:52:39 -0800145
Stephen Streete0c99052006-03-07 23:53:24 -0800146config SPI_PXA2XX
147 tristate "PXA2xx SSP SPI master"
148 depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL
149 help
150 This enables using a PXA2xx SSP port as a SPI master controller.
151 The driver can be configured to use any SSP port and additional
152 documentation can be found a Documentation/spi/pxa2xx.
153
David Brownell85abfaa2007-02-12 00:52:36 -0800154config SPI_S3C24XX
155 tristate "Samsung S3C24XX series SPI"
156 depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL
David Brownellda0abc22007-07-17 04:04:09 -0700157 select SPI_BITBANG
David Brownell85abfaa2007-02-12 00:52:36 -0800158 help
159 SPI driver for Samsung S3C24XX series ARM SoCs
160
Ben Dooks1fc75472006-05-20 15:00:17 -0700161config SPI_S3C24XX_GPIO
162 tristate "Samsung S3C24XX series SPI by GPIO"
David Brownellda0abc22007-07-17 04:04:09 -0700163 depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL
164 select SPI_BITBANG
Ben Dooks1fc75472006-05-20 15:00:17 -0700165 help
166 SPI driver for Samsung S3C24XX series ARM SoCs using
167 GPIO lines to provide the SPI bus. This can be used where
168 the inbuilt hardware cannot provide the transfer mode, or
169 where the board is using non hardware connected pins.
David Brownell8ae12a02006-01-08 13:34:19 -0800170#
171# Add new SPI master controllers in alphabetical order above this line
172#
173
David Brownell8ae12a02006-01-08 13:34:19 -0800174#
175# There are lots of SPI device types, with sensors and memory
176# being probably the most widely used ones.
177#
178comment "SPI Protocol Masters"
179 depends on SPI_MASTER
180
David Brownellb587b132007-02-12 00:52:48 -0800181config SPI_AT25
182 tristate "SPI EEPROMs from most vendors"
183 depends on SPI_MASTER && SYSFS
184 help
185 Enable this driver to get read/write support to most SPI EEPROMs,
186 after you configure the board init code to know about each eeprom
187 on your target board.
188
189 This driver can also be built as a module. If so, the module
190 will be called at25.
David Brownell8ae12a02006-01-08 13:34:19 -0800191
Andrea Paterniani814a8d52007-05-08 00:32:15 -0700192config SPI_SPIDEV
193 tristate "User mode SPI device driver support"
194 depends on SPI_MASTER && EXPERIMENTAL
195 help
196 This supports user mode SPI protocol drivers.
197
198 Note that this application programming interface is EXPERIMENTAL
199 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
200
David Brownell8ae12a02006-01-08 13:34:19 -0800201#
202# Add new SPI protocol masters in alphabetical order above this line
203#
204
David Brownell8ae12a02006-01-08 13:34:19 -0800205# (slave support would go here)
206
207endmenu # "SPI support"
208