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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
Adrian Bunk2064c942008-04-28 23:44:43 +020011 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080012 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000013 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050014 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060015 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050016 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080017 select HAVE_KRETPROBES if (HAVE_KPROBES)
Abhishek Sagar014c2572008-05-31 14:23:50 +053018 select HAVE_FTRACE if (!XIP_KERNEL)
19 select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 help
22 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000023 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000025 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 Europe. There is an ARM Linux project with a web page at
27 <http://www.arm.linux.org.uk/>.
28
Russell King1a189b92008-04-13 21:41:55 +010029config HAVE_PWM
30 bool
31
Ralf Baechle75e71532007-02-09 17:08:58 +000032config SYS_SUPPORTS_APM_EMULATION
33 bool
34
David Brownell0a938b92007-03-05 00:30:18 -080035config GENERIC_GPIO
36 bool
37 default n
38
Kevin Hilman746140c2006-09-22 00:16:30 +010039config GENERIC_TIME
40 bool
41 default n
42
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043config GENERIC_CLOCKEVENTS
44 bool
45 default n
46
Catalin Marinasa8655e82008-02-04 17:30:57 +010047config GENERIC_CLOCKEVENTS_BROADCAST
48 bool
49 depends on GENERIC_CLOCKEVENTS
50 default y if SMP && !LOCAL_TIMERS
51
Linus Torvalds1da177e2005-04-16 15:20:36 -070052config MMU
53 bool
54 default y
55
Al Viro5ea81762007-02-11 15:41:31 +000056config NO_IOPORT
57 bool
58 default n
59
Linus Torvalds1da177e2005-04-16 15:20:36 -070060config EISA
61 bool
62 ---help---
63 The Extended Industry Standard Architecture (EISA) bus was
64 developed as an open alternative to the IBM MicroChannel bus.
65
66 The EISA bus provided some of the features of the IBM MicroChannel
67 bus while maintaining backward compatibility with cards made for
68 the older ISA bus. The EISA bus saw limited use between 1988 and
69 1995 when it was made obsolete by the PCI bus.
70
71 Say Y here if you are building a kernel for an EISA-based machine.
72
73 Otherwise, say N.
74
75config SBUS
76 bool
77
78config MCA
79 bool
80 help
81 MicroChannel Architecture is found in some IBM PS/2 machines and
82 laptops. It is a bus system similar to PCI or ISA. See
83 <file:Documentation/mca.txt> (and especially the web page given
84 there) before attempting to build an MCA bus kernel.
85
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010086config GENERIC_HARDIRQS
87 bool
88 default y
89
Russell Kingf16fb1e2007-04-28 09:59:37 +010090config STACKTRACE_SUPPORT
91 bool
92 default y
93
Nicolas Pitref76e9152008-04-24 01:31:46 -040094config HAVE_LATENCYTOP_SUPPORT
95 bool
96 depends on !SMP
97 default y
98
Russell Kingf16fb1e2007-04-28 09:59:37 +010099config LOCKDEP_SUPPORT
100 bool
101 default y
102
Russell King7ad1bcb2006-08-27 12:07:02 +0100103config TRACE_IRQFLAGS_SUPPORT
104 bool
105 default y
106
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100107config HARDIRQS_SW_RESEND
108 bool
109 default y
110
111config GENERIC_IRQ_PROBE
112 bool
113 default y
114
Nick Piggin95c354f2008-01-30 13:31:20 +0100115config GENERIC_LOCKBREAK
116 bool
117 default y
118 depends on SMP && PREEMPT
119
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120config RWSEM_GENERIC_SPINLOCK
121 bool
122 default y
123
124config RWSEM_XCHGADD_ALGORITHM
125 bool
126
David Howellsf0d1b0b2006-12-08 02:37:49 -0800127config ARCH_HAS_ILOG2_U32
128 bool
129 default n
130
131config ARCH_HAS_ILOG2_U64
132 bool
133 default n
134
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800135config GENERIC_HWEIGHT
136 bool
137 default y
138
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139config GENERIC_CALIBRATE_DELAY
140 bool
141 default y
142
David Howellsb0b933c2008-02-08 04:19:27 -0800143config ARCH_SUPPORTS_AOUT
144 def_bool y
145
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100146config ARCH_MAY_HAVE_PC_FDC
147 bool
148
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800149config ZONE_DMA
150 bool
151 default y
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153config GENERIC_ISA_DMA
154 bool
155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156config FIQ
157 bool
158
Al Viro034d2f52005-12-19 16:27:59 -0500159config ARCH_MTD_XIP
160 bool
161
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100162config GENERIC_HARDIRQS_NO__DO_IRQ
163 bool
164 def_bool y
165
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500166if OPROFILE
167
168config OPROFILE_ARMV6
169 def_bool y
170 depends on CPU_V6 && !SMP
171 select OPROFILE_ARM11_CORE
172
173config OPROFILE_MPCORE
174 def_bool y
175 depends on CPU_V6 && SMP
176 select OPROFILE_ARM11_CORE
177
178config OPROFILE_ARM11_CORE
179 bool
180
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100181config OPROFILE_ARMV7
182 def_bool y
183 depends on CPU_V7 && !SMP
184 bool
185
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500186endif
187
Hyok S. Choic760fc12006-03-27 15:18:50 +0100188config VECTORS_BASE
189 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900190 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100191 default DRAM_BASE if REMAP_VECTORS_TO_RAM
192 default 0x00000000
193 help
194 The base address of exception vectors.
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196source "init/Kconfig"
197
198menu "System Type"
199
200choice
201 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000202 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100204config ARCH_AAEC2000
205 bool "Agilent AAEC-2000 based"
206 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700207 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100208 help
209 This enables support for systems based on the Agilent AAEC-2000
210
211config ARCH_INTEGRATOR
212 bool "ARM Ltd. Integrator family"
213 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700214 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215 select ICST525
216 help
217 Support for ARM's Integrator platform.
218
219config ARCH_REALVIEW
220 bool "ARM Ltd. RealView family"
221 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700222 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100224 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100225 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 help
227 This enables support for ARM Ltd RealView boards.
228
229config ARCH_VERSATILE
230 bool "ARM Ltd. Versatile family"
231 select ARM_AMBA
232 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700233 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100235 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100236 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237 help
238 This enables support for ARM Ltd Versatile board.
239
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100240config ARCH_AT91
241 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800242 select GENERIC_GPIO
David Brownell93686ae2008-07-28 15:46:22 -0700243 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100244 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100245 This enables support for systems based on the Atmel AT91RM9200,
246 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100249 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100251 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000252 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000253 help
254 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
256config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100257 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000258 help
259 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261config ARCH_EBSA110
262 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100263 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000264 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 help
266 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000267 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 Ethernet interface, two PCMCIA sockets, two serial ports and a
269 parallel port.
270
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000271config ARCH_EP93XX
272 bool "EP93xx-based"
273 select ARM_AMBA
274 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100275 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700276 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700277 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000278 help
279 This enables support for the Cirrus EP93xx series of CPUs.
280
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281config ARCH_FOOTBRIDGE
282 bool "FootBridge"
283 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000284 help
285 Support for systems based on the DC21285 companion chip
286 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100288config ARCH_NETX
289 bool "Hilscher NetX based"
290 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000291 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100292 This enables support for systems based on the Hilscher NetX Soc
293
294config ARCH_H720X
295 bool "Hynix HMS720x-based"
296 select ISA_DMA_API
297 help
298 This enables support for systems based on the Hynix HMS720x
299
300config ARCH_IMX
301 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100302 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100303 select GENERIC_TIME
304 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100305 help
306 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
Russell King3b938be2007-05-12 11:25:44 +0100308config ARCH_IOP13XX
309 bool "IOP13xx-based"
310 depends on MMU
311 select PLAT_IOP
312 select PCI
313 select ARCH_SUPPORTS_MSI
314 help
315 Support for Intel's IOP13XX (XScale) family of processors.
316
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100317config ARCH_IOP32X
318 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100319 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100320 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100321 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100322 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100323 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000324 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100325 Support for Intel's 80219 and IOP32X (XScale) family of
326 processors.
327
328config ARCH_IOP33X
329 bool "IOP33x-based"
330 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100331 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100332 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100333 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100334 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100335 help
336 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
Russell King3b938be2007-05-12 11:25:44 +0100338config ARCH_IXP23XX
339 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100340 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100341 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100342 help
Russell King3b938be2007-05-12 11:25:44 +0100343 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344
345config ARCH_IXP2000
346 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100347 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100348 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000349 help
350 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
Russell King3b938be2007-05-12 11:25:44 +0100352config ARCH_IXP4XX
353 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100354 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100355 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100356 select GENERIC_TIME
357 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100358 help
Russell King3b938be2007-05-12 11:25:44 +0100359 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100360
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361config ARCH_L7200
362 bool "LinkUp-L7200"
363 select FIQ
364 help
365 Say Y here if you intend to run this kernel on a LinkUp Systems
366 L7200 Software Development Board which uses an ARM720T processor.
367 Information on this board can be obtained at:
368
369 <http://www.linkupsys.com/>
370
371 If you have any questions or comments about the Linux kernel port
372 to this board, send e-mail to <sjhill@cotw.com>.
373
Saeed Bishara651c74c2008-06-22 22:45:06 +0200374config ARCH_KIRKWOOD
375 bool "Marvell Kirkwood"
376 select PCI
377 select GENERIC_TIME
378 select GENERIC_CLOCKEVENTS
379 select PLAT_ORION
380 help
381 Support for the following Marvell Kirkwood series SoCs:
382 88F6180, 88F6192 and 88F6281.
383
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100384config ARCH_KS8695
385 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100386 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100387 help
388 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
389 System-on-Chip devices.
390
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100391config ARCH_NS9XXX
392 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100393 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100394 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100395 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700396 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100397 help
398 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
399 System.
400
401 <http://www.digi.com/products/microprocessors/index.jsp>
402
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200403config ARCH_LOKI
404 bool "Marvell Loki (88RC8480)"
405 select GENERIC_TIME
406 select GENERIC_CLOCKEVENTS
407 select PLAT_ORION
408 help
409 Support for the Marvell Loki (88RC8480) SoC.
410
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200411config ARCH_MV78XX0
412 bool "Marvell MV78xx0"
413 select PCI
414 select GENERIC_TIME
415 select GENERIC_CLOCKEVENTS
416 select PLAT_ORION
417 help
418 Support for the following Marvell MV78xx0 series SoCs:
419 MV781x0, MV782x0.
420
Quinn Jensen52c543f2007-07-09 22:06:53 +0100421config ARCH_MXC
422 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200423 select GENERIC_TIME
424 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100425 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200426 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100427 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100428 help
429 Support for Freescale MXC/iMX-based family of processors
430
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400431config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400432 bool "Marvell Orion"
433 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400434 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400435 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400436 select GENERIC_TIME
437 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400438 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400439 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400440 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200441 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
442 Orion-2 (5281).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400443
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100444config ARCH_PNX4008
445 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700446 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100447 help
448 This enables support for Philips PNX4008 mobile platform.
449
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700451 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100452 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500453 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800454 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700455 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700456 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100457 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100458 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000459 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000460 help
eric miao2c8086a2007-09-11 19:13:17 -0700461 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
463config ARCH_RPC
464 bool "RiscPC"
465 select ARCH_ACORN
466 select FIQ
467 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100468 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100469 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000470 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000471 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 help
473 On the Acorn Risc-PC, Linux can support the internal IDE disk and
474 CD-ROM interface, serial and parallel port, and the floppy drive.
475
476config ARCH_SA1100
477 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100478 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100479 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000480 select ARCH_SPARSEMEM_ENABLE
481 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500482 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800483 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000484 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100485 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700486 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100487 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700488 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000489 help
490 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491
492config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100493 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800494 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700495 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 help
497 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
498 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000499 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500
501config ARCH_SHARK
502 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100503 select ISA
504 select ISA_DMA
505 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000506 help
507 Support for the StrongARM based Digital DNARD machine, also known
508 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509
510config ARCH_LH7A40X
511 bool "Sharp LH7A40X"
512 help
513 Say Y here for systems based on one of the Sharp LH7A40X
514 System on a Chip processors. These CPUs include an ARM922T
515 core with a wide array of integrated devices for
516 hand-held and low-power applications.
517
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100518config ARCH_DAVINCI
519 bool "TI DaVinci"
520 select GENERIC_TIME
521 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100522 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700523 select HAVE_CLK
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100524 help
525 Support for TI's DaVinci platform.
526
Russell King3b938be2007-05-12 11:25:44 +0100527config ARCH_OMAP
528 bool "TI OMAP"
529 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700530 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700531 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100532 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700533 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100534 help
535 Support for TI's OMAP platform (OMAP1 and OMAP2).
536
Brian Swetland30421022007-11-26 04:11:43 -0800537config ARCH_MSM7X00A
538 bool "Qualcomm MSM7X00A"
539 select GENERIC_TIME
540 select GENERIC_CLOCKEVENTS
541 help
542 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
543 apps processor of the MSM7X00A and depends on a shared memory
544 interface to the ARM9 modem processor which runs the baseband stack
545 and controls some vital subsystems (clock and power control, etc).
546 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
547
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548endchoice
549
550source "arch/arm/mach-clps711x/Kconfig"
551
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000552source "arch/arm/mach-ep93xx/Kconfig"
553
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554source "arch/arm/mach-footbridge/Kconfig"
555
556source "arch/arm/mach-integrator/Kconfig"
557
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100558source "arch/arm/mach-iop32x/Kconfig"
559
560source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561
Dan Williams285f5fa2006-12-07 02:59:39 +0100562source "arch/arm/mach-iop13xx/Kconfig"
563
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564source "arch/arm/mach-ixp4xx/Kconfig"
565
566source "arch/arm/mach-ixp2000/Kconfig"
567
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100568source "arch/arm/mach-ixp23xx/Kconfig"
569
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200570source "arch/arm/mach-loki/Kconfig"
571
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200572source "arch/arm/mach-mv78xx0/Kconfig"
573
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574source "arch/arm/mach-pxa/Kconfig"
575
576source "arch/arm/mach-sa1100/Kconfig"
577
Tony Lindgrend48af152005-07-10 19:58:17 +0100578source "arch/arm/plat-omap/Kconfig"
579
580source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581
Tony Lindgren1dbae812005-11-10 14:26:51 +0000582source "arch/arm/mach-omap2/Kconfig"
583
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400584source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400585
Saeed Bishara651c74c2008-06-22 22:45:06 +0200586source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587
Ben Dooksa21765a2007-02-11 18:31:01 +0100588source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100589source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100590
591if ARCH_S3C2410
592source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100594source "arch/arm/mach-s3c2412/Kconfig"
595source "arch/arm/mach-s3c2440/Kconfig"
596source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100597source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100598endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599
600source "arch/arm/mach-lh7a40x/Kconfig"
601
602source "arch/arm/mach-imx/Kconfig"
603
604source "arch/arm/mach-h720x/Kconfig"
605
606source "arch/arm/mach-versatile/Kconfig"
607
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100608source "arch/arm/mach-aaec2000/Kconfig"
609
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000610source "arch/arm/mach-realview/Kconfig"
611
Andrew Victor9d041262007-02-05 11:42:07 +0100612source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000613
Quinn Jensen52c543f2007-07-09 22:06:53 +0100614source "arch/arm/plat-mxc/Kconfig"
615
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100616source "arch/arm/mach-netx/Kconfig"
617
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100618source "arch/arm/mach-ns9xxx/Kconfig"
619
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100620source "arch/arm/mach-davinci/Kconfig"
621
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100622source "arch/arm/mach-ks8695/Kconfig"
623
Brian Swetland9e73c842007-11-26 04:12:13 -0800624source "arch/arm/mach-msm/Kconfig"
625
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626# Definitions to make life easier
627config ARCH_ACORN
628 bool
629
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100630config PLAT_IOP
631 bool
632
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400633config PLAT_ORION
634 bool
635
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636source arch/arm/mm/Kconfig
637
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100638config IWMMXT
639 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100640 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700641 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100642 help
643 Enable support for iWMMXt context switching at run time if
644 running on a CPU that supports it.
645
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
647config XSCALE_PMU
648 bool
649 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
650 default y
651
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100652if !MMU
653source "arch/arm/Kconfig-nommu"
654endif
655
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656endmenu
657
658source "arch/arm/common/Kconfig"
659
660config FORCE_MAX_ZONEORDER
661 int
662 depends on SA1111
663 default "9"
664
665menu "Bus support"
666
667config ARM_AMBA
668 bool
669
670config ISA
671 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672 help
673 Find out whether you have ISA slots on your motherboard. ISA is the
674 name of a bus system, i.e. the way the CPU talks to the other stuff
675 inside your box. Other bus systems are PCI, EISA, MicroChannel
676 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
677 newer boards don't support it. If you have ISA, say Y, otherwise N.
678
Russell King065909b2006-01-04 15:44:16 +0000679# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680config ISA_DMA
681 bool
Russell King065909b2006-01-04 15:44:16 +0000682 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683
Russell King065909b2006-01-04 15:44:16 +0000684# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100685config ISA_DMA_API
686 bool
Al Viro5cae8412005-05-04 05:39:22 +0100687
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100689 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690 help
691 Find out whether you have a PCI motherboard. PCI is the name of a
692 bus system, i.e. the way the CPU talks to the other stuff inside
693 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
694 VESA. If you have PCI, say Y, otherwise N.
695
Matthew Wilcox36e23592007-07-10 10:54:40 -0600696config PCI_SYSCALL
697 def_bool PCI
698
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699# Select the host bridge type
700config PCI_HOST_VIA82C505
701 bool
702 depends on PCI && ARCH_SHARK
703 default y
704
Mike Rapoporta0113a92007-11-25 08:55:34 +0100705config PCI_HOST_ITE8152
706 bool
707 depends on PCI && MACH_ARMCORE
708 default y
709 select DMABOUNCE
710
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711source "drivers/pci/Kconfig"
712
713source "drivers/pcmcia/Kconfig"
714
715endmenu
716
717menu "Kernel Features"
718
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100719source "kernel/time/Kconfig"
720
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721config SMP
722 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100723 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200724 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 help
726 This enables support for systems with more than one CPU. If you have
727 a system with only one CPU, like most personal computers, say N. If
728 you have a system with more than one CPU, say Y.
729
730 If you say N here, the kernel will run on single and multiprocessor
731 machines, but will use only one CPU of a multiprocessor machine. If
732 you say Y here, the kernel will run on many, but not all, single
733 processor machines. On a single processor machine, the kernel will
734 run faster if you say N here.
735
Adrian Bunk03502fa2008-02-03 15:50:21 +0200736 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
738 <http://www.linuxdoc.org/docs.html#howto>.
739
740 If you don't know what to do here, say N.
741
742config NR_CPUS
743 int "Maximum number of CPUs (2-32)"
744 range 2 32
745 depends on SMP
746 default "4"
747
Russell Kinga054a812005-11-02 22:24:33 +0000748config HOTPLUG_CPU
749 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
750 depends on SMP && HOTPLUG && EXPERIMENTAL
751 help
752 Say Y here to experiment with turning CPUs off and on. CPUs
753 can be controlled through /sys/devices/system/cpu.
754
Russell King37ee16a2005-11-08 19:08:05 +0000755config LOCAL_TIMERS
756 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100757 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000758 default y
759 help
760 Enable support for local timers on SMP platforms, rather then the
761 legacy IPI broadcast method. Local timers allows the system
762 accounting to be spread across the timer interval, preventing a
763 "thundering herd" at every timer tick.
764
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765config PREEMPT
766 bool "Preemptible Kernel (EXPERIMENTAL)"
767 depends on EXPERIMENTAL
768 help
769 This option reduces the latency of the kernel when reacting to
770 real-time or interactive events by allowing a low priority process to
771 be preempted even if it is in kernel mode executing a system call.
772 This allows applications to run more reliably even when the system is
773 under load.
774
775 Say Y here if you are building a kernel for a desktop, embedded
776 or real-time system. Say N if you are unsure.
777
Russell Kingf8065812006-03-02 22:41:59 +0000778config HZ
779 int
780 default 128 if ARCH_L7200
781 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000782 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100783 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000784 default 100
785
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000786config AEABI
787 bool "Use the ARM EABI to compile the kernel"
788 help
789 This option allows for the kernel to be compiled using the latest
790 ARM ABI (aka EABI). This is only useful if you are using a user
791 space environment that is also compiled with EABI.
792
793 Since there are major incompatibilities between the legacy ABI and
794 EABI, especially with regard to structure member alignment, this
795 option also changes the kernel syscall calling convention to
796 disambiguate both ABIs and allow for backward compatibility support
797 (selected with CONFIG_OABI_COMPAT).
798
799 To use this you need GCC version 4.0.0 or later.
800
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000801config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000802 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000803 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000804 default y
805 help
806 This option preserves the old syscall interface along with the
807 new (ARM EABI) one. It also provides a compatibility layer to
808 intercept syscalls that have structure arguments which layout
809 in memory differs between the legacy ABI and the new ARM EABI
810 (only for non "thumb" binaries). This option adds a tiny
811 overhead to all syscalls and produces a slightly larger kernel.
812 If you know you'll be using only pure EABI user space then you
813 can say N here. If this option is not selected and you attempt
814 to execute a legacy ABI binary then the result will be
815 UNPREDICTABLE (in fact it can be predicted that it won't work
816 at all). If in doubt say Y.
817
Dave Hansen3f22ab22005-06-23 00:07:43 -0700818config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100820 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 help
822 Say Y to support efficient handling of discontiguous physical memory,
823 for architectures which are either NUMA (Non-Uniform Memory Access)
824 or have huge holes in the physical address space for other reasons.
825 See <file:Documentation/vm/numa> for more.
826
Russell King05944d72006-11-30 20:43:51 +0000827config ARCH_SPARSEMEM_ENABLE
828 bool
829
830config ARCH_SELECT_MEMORY_MODEL
831 bool
832
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700833config NODES_SHIFT
834 int
835 default "4" if ARCH_LH7A40X
836 default "2"
837 depends on NEED_MULTIPLE_NODES
838
Dave Hansen3f22ab22005-06-23 00:07:43 -0700839source "mm/Kconfig"
840
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841config LEDS
842 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +0100843 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
845 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
846 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000847 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100848 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400849 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 help
851 If you say Y here, the LEDs on your machine will be used
852 to provide useful information about your current system status.
853
854 If you are compiling a kernel for a NetWinder or EBSA-285, you will
855 be able to select which LEDs are active using the options below. If
856 you are compiling a kernel for the EBSA-110 or the LART however, the
857 red LED will simply flash regularly to indicate that the system is
858 still functional. It is safe to say Y here if you have a CATS
859 system, but the driver will do nothing.
860
861config LEDS_TIMER
862 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700863 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
864 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100866 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 default y if ARCH_EBSA110
868 help
869 If you say Y here, one of the system LEDs (the green one on the
870 NetWinder, the amber one on the EBSA285, or the red one on the LART)
871 will flash regularly to indicate that the system is still
872 operational. This is mainly useful to kernel hackers who are
873 debugging unstable kernels.
874
875 The LART uses the same LED for both Timer LED and CPU usage LED
876 functions. You may choose to use both, but the Timer LED function
877 will overrule the CPU usage LED.
878
879config LEDS_CPU
880 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700881 !ARCH_OMAP) \
882 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
883 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884 depends on LEDS
885 help
886 If you say Y here, the red LED will be used to give a good real
887 time indication of CPU usage, by lighting whenever the idle task
888 is not currently executing.
889
890 The LART uses the same LED for both Timer LED and CPU usage LED
891 functions. You may choose to use both, but the Timer LED function
892 will overrule the CPU usage LED.
893
894config ALIGNMENT_TRAP
895 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900896 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 default y if !ARCH_EBSA110
898 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200899 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
901 address divisible by 4. On 32-bit ARM processors, these non-aligned
902 fetch/store instructions will be emulated in software if you say
903 here, which has a severe performance impact. This is necessary for
904 correct operation of some network protocols. With an IP-only
905 configuration it is safe to say N, otherwise say Y.
906
907endmenu
908
909menu "Boot options"
910
911# Compressed boot loader in ROM. Yes, we really want to ask about
912# TEXT and BSS so we preserve their values in the config files.
913config ZBOOT_ROM_TEXT
914 hex "Compressed ROM boot loader base address"
915 default "0"
916 help
917 The physical address at which the ROM-able zImage is to be
918 placed in the target. Platforms which normally make use of
919 ROM-able zImage formats normally set this to a suitable
920 value in their defconfig file.
921
922 If ZBOOT_ROM is not enabled, this has no effect.
923
924config ZBOOT_ROM_BSS
925 hex "Compressed ROM boot loader BSS address"
926 default "0"
927 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100928 The base address of an area of read/write memory in the target
929 for the ROM-able zImage which must be available while the
930 decompressor is running. It must be large enough to hold the
931 entire decompressed kernel plus an additional 128 KiB.
932 Platforms which normally make use of ROM-able zImage formats
933 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
935 If ZBOOT_ROM is not enabled, this has no effect.
936
937config ZBOOT_ROM
938 bool "Compressed boot loader in ROM/flash"
939 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
940 help
941 Say Y here if you intend to execute your compressed kernel image
942 (zImage) directly from ROM or flash. If unsure, say N.
943
944config CMDLINE
945 string "Default kernel command string"
946 default ""
947 help
948 On some architectures (EBSA110 and CATS), there is currently no way
949 for the boot loader to pass arguments to the kernel. For these
950 architectures, you should supply some command-line options at build
951 time by entering them here. As a minimum, you should specify the
952 memory size and the root device (e.g., mem=64M root=/dev/nfs).
953
954config XIP_KERNEL
955 bool "Kernel Execute-In-Place from ROM"
956 depends on !ZBOOT_ROM
957 help
958 Execute-In-Place allows the kernel to run from non-volatile storage
959 directly addressable by the CPU, such as NOR flash. This saves RAM
960 space since the text section of the kernel is not loaded from flash
961 to RAM. Read-write sections, such as the data section and stack,
962 are still copied to RAM. The XIP kernel is not compressed since
963 it has to run directly from flash, so it will take more space to
964 store it. The flash address used to link the kernel object files,
965 and for storing it, is configuration dependent. Therefore, if you
966 say Y here, you must know the proper physical address where to
967 store the kernel image depending on your own flash memory usage.
968
969 Also note that the make target becomes "make xipImage" rather than
970 "make zImage" or "make Image". The final kernel binary to put in
971 ROM memory will be arch/arm/boot/xipImage.
972
973 If unsure, say N.
974
975config XIP_PHYS_ADDR
976 hex "XIP Kernel Physical Location"
977 depends on XIP_KERNEL
978 default "0x00080000"
979 help
980 This is the physical address in your flash memory the kernel will
981 be linked for and stored to. This address is dependent on your
982 own flash usage.
983
Richard Purdiec587e4a2007-02-06 21:29:00 +0100984config KEXEC
985 bool "Kexec system call (EXPERIMENTAL)"
986 depends on EXPERIMENTAL
987 help
988 kexec is a system call that implements the ability to shutdown your
989 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200990 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100991 you can start any kernel with it, not just Linux.
992
993 It is an ongoing process to be certain the hardware in a machine
994 is properly shutdown, so do not be surprised if this code does not
995 initially work for you. It may help to enable device hotplugging
996 support.
997
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100998config ATAGS_PROC
999 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001000 depends on KEXEC
1001 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001002 help
1003 Should the atags used to boot the kernel be exported in an "atags"
1004 file in procfs. Useful with kexec.
1005
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006endmenu
1007
Russell Kingac9d7ef2008-08-18 17:26:00 +01001008menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
Russell Kingac9d7ef2008-08-18 17:26:00 +01001010if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
1012source "drivers/cpufreq/Kconfig"
1013
1014config CPU_FREQ_SA1100
1015 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001016 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017 default y
1018
1019config CPU_FREQ_SA1110
1020 bool
1021 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1022 default y
1023
1024config CPU_FREQ_INTEGRATOR
1025 tristate "CPUfreq driver for ARM Integrator CPUs"
1026 depends on ARCH_INTEGRATOR && CPU_FREQ
1027 default y
1028 help
1029 This enables the CPUfreq driver for ARM Integrator CPUs.
1030
1031 For details, take a look at <file:Documentation/cpu-freq>.
1032
1033 If in doubt, say Y.
1034
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001035config CPU_FREQ_IMX
1036 tristate "CPUfreq driver for i.MX CPUs"
1037 depends on ARCH_IMX && CPU_FREQ
1038 default n
1039 help
1040 This enables the CPUfreq driver for i.MX CPUs.
1041
1042 If in doubt, say N.
1043
Russell King9e2697f2007-12-14 13:30:14 +00001044config CPU_FREQ_PXA
1045 bool
1046 depends on CPU_FREQ && ARCH_PXA && PXA25x
1047 default y
1048 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1049
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050endif
1051
Russell Kingac9d7ef2008-08-18 17:26:00 +01001052source "drivers/cpuidle/Kconfig"
1053
1054endmenu
1055
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056menu "Floating point emulation"
1057
1058comment "At least one emulation must be selected"
1059
1060config FPE_NWFPE
1061 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001062 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063 ---help---
1064 Say Y to include the NWFPE floating point emulator in the kernel.
1065 This is necessary to run most binaries. Linux does not currently
1066 support floating point hardware so you need to say Y here even if
1067 your machine has an FPA or floating point co-processor podule.
1068
1069 You may say N here if you are going to load the Acorn FPEmulator
1070 early in the bootup.
1071
1072config FPE_NWFPE_XP
1073 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001074 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 help
1076 Say Y to include 80-bit support in the kernel floating-point
1077 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1078 Note that gcc does not generate 80-bit operations by default,
1079 so in most cases this option only enlarges the size of the
1080 floating point emulator without any good reason.
1081
1082 You almost surely want to say N here.
1083
1084config FPE_FASTFPE
1085 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001086 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 ---help---
1088 Say Y here to include the FAST floating point emulator in the kernel.
1089 This is an experimental much faster emulator which now also has full
1090 precision for the mantissa. It does not support any exceptions.
1091 It is very simple, and approximately 3-6 times faster than NWFPE.
1092
1093 It should be sufficient for most programs. It may be not suitable
1094 for scientific calculations, but you have to check this for yourself.
1095 If you do not feel you need a faster FP emulation you should better
1096 choose NWFPE.
1097
1098config VFP
1099 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001100 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101 help
1102 Say Y to include VFP support code in the kernel. This is needed
1103 if your hardware includes a VFP unit.
1104
1105 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1106 release notes and additional status information.
1107
1108 Say N if your target does not have VFP hardware.
1109
Catalin Marinas25ebee02007-09-25 15:22:24 +01001110config VFPv3
1111 bool
1112 depends on VFP
1113 default y if CPU_V7
1114
Catalin Marinasb5872db2008-01-10 19:16:17 +01001115config NEON
1116 bool "Advanced SIMD (NEON) Extension support"
1117 depends on VFPv3 && CPU_V7
1118 help
1119 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1120 Extension.
1121
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122endmenu
1123
1124menu "Userspace binary formats"
1125
1126source "fs/Kconfig.binfmt"
1127
1128config ARTHUR
1129 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001130 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 help
1132 Say Y here to include the kernel code necessary if you want to run
1133 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1134 experimental; if this sounds frightening, say N and sleep in peace.
1135 You can also say M here to compile this support as a module (which
1136 will be called arthur).
1137
1138endmenu
1139
1140menu "Power management options"
1141
Russell Kingeceab4a2005-11-15 11:31:41 +00001142source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143
Johannes Bergf4cb5702007-12-08 02:14:00 +01001144config ARCH_SUSPEND_POSSIBLE
1145 def_bool y
1146
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147endmenu
1148
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001149source "net/Kconfig"
1150
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151menu "Device Drivers"
1152
1153source "drivers/base/Kconfig"
1154
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001155source "drivers/connector/Kconfig"
1156
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001157if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158source "drivers/mtd/Kconfig"
1159endif
1160
1161source "drivers/parport/Kconfig"
1162
1163source "drivers/pnp/Kconfig"
1164
1165source "drivers/block/Kconfig"
1166
Russell King58273e52007-10-12 22:24:09 +01001167# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1168
1169source "drivers/misc/Kconfig"
1170
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172
1173source "drivers/scsi/Kconfig"
1174
Martin Michlmayreb370f02006-11-17 00:14:35 +01001175source "drivers/ata/Kconfig"
1176
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177source "drivers/md/Kconfig"
1178
1179source "drivers/message/fusion/Kconfig"
1180
1181source "drivers/ieee1394/Kconfig"
1182
1183source "drivers/message/i2o/Kconfig"
1184
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001185source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186
1187source "drivers/isdn/Kconfig"
1188
1189# input before char - char/joystick depends on it. As does USB.
1190
1191source "drivers/input/Kconfig"
1192
1193source "drivers/char/Kconfig"
1194
1195source "drivers/i2c/Kconfig"
1196
David Brownell8ae12a02006-01-08 13:34:19 -08001197source "drivers/spi/Kconfig"
1198
David Brownella9c5fff2008-02-04 22:28:17 -08001199source "drivers/gpio/Kconfig"
1200
Alessandro Zummo04916c02006-03-10 22:30:01 +00001201source "drivers/w1/Kconfig"
1202
Russell King58273e52007-10-12 22:24:09 +01001203source "drivers/power/Kconfig"
1204
Jean Delvaread2f9312005-07-02 18:15:49 +02001205source "drivers/hwmon/Kconfig"
1206
Russell Kingac9d7ef2008-08-18 17:26:00 +01001207source "drivers/thermal/Kconfig"
1208
Russell King70dfa3f2007-11-07 14:13:35 +00001209source "drivers/watchdog/Kconfig"
1210
Russell King58273e52007-10-12 22:24:09 +01001211source "drivers/ssb/Kconfig"
1212
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213#source "drivers/l3/Kconfig"
1214
Russell Kinga4e137a2005-08-18 10:06:59 +01001215source "drivers/mfd/Kconfig"
1216
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217source "drivers/media/Kconfig"
1218
1219source "drivers/video/Kconfig"
1220
1221source "sound/Kconfig"
1222
Sascha Hauerc2dade52006-12-12 10:32:42 +01001223source "drivers/hid/Kconfig"
1224
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225source "drivers/usb/Kconfig"
1226
1227source "drivers/mmc/Kconfig"
1228
Russell Kingac9d7ef2008-08-18 17:26:00 +01001229source "drivers/memstick/Kconfig"
1230
1231source "drivers/accessibility/Kconfig"
1232
Russell King58273e52007-10-12 22:24:09 +01001233source "drivers/leds/Kconfig"
1234
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001235source "drivers/rtc/Kconfig"
1236
Dan Williams58168152007-01-02 11:10:43 -07001237source "drivers/dma/Kconfig"
1238
Dan Williamsabf07b12008-01-18 23:26:10 +01001239source "drivers/dca/Kconfig"
1240
Russell Kingac9d7ef2008-08-18 17:26:00 +01001241source "drivers/auxdisplay/Kconfig"
1242
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001243source "drivers/regulator/Kconfig"
1244
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001245source "drivers/uio/Kconfig"
1246
Linus Torvalds1da177e2005-04-16 15:20:36 -07001247endmenu
1248
1249source "fs/Kconfig"
1250
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251source "arch/arm/Kconfig.debug"
1252
1253source "security/Kconfig"
1254
1255source "crypto/Kconfig"
1256
1257source "lib/Kconfig"