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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
11 help
12 The ARM series is a line of low-power-consumption RISC chip designs
13 licensed by ARM ltd and targeted at embedded applications and
14 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
15 manufactured, but legacy ARM-based PC hardware remains popular in
16 Europe. There is an ARM Linux project with a web page at
17 <http://www.arm.linux.org.uk/>.
18
19config MMU
20 bool
21 default y
22
23config EISA
24 bool
25 ---help---
26 The Extended Industry Standard Architecture (EISA) bus was
27 developed as an open alternative to the IBM MicroChannel bus.
28
29 The EISA bus provided some of the features of the IBM MicroChannel
30 bus while maintaining backward compatibility with cards made for
31 the older ISA bus. The EISA bus saw limited use between 1988 and
32 1995 when it was made obsolete by the PCI bus.
33
34 Say Y here if you are building a kernel for an EISA-based machine.
35
36 Otherwise, say N.
37
38config SBUS
39 bool
40
41config MCA
42 bool
43 help
44 MicroChannel Architecture is found in some IBM PS/2 machines and
45 laptops. It is a bus system similar to PCI or ISA. See
46 <file:Documentation/mca.txt> (and especially the web page given
47 there) before attempting to build an MCA bus kernel.
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049config RWSEM_GENERIC_SPINLOCK
50 bool
51 default y
52
53config RWSEM_XCHGADD_ALGORITHM
54 bool
55
56config GENERIC_CALIBRATE_DELAY
57 bool
58 default y
59
60config GENERIC_BUST_SPINLOCK
61 bool
62
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +010063config ARCH_MAY_HAVE_PC_FDC
64 bool
65
Linus Torvalds1da177e2005-04-16 15:20:36 -070066config GENERIC_ISA_DMA
67 bool
68
Linus Torvalds1da177e2005-04-16 15:20:36 -070069config FIQ
70 bool
71
Al Viro034d2f52005-12-19 16:27:59 -050072config ARCH_MTD_XIP
73 bool
74
Linus Torvalds1da177e2005-04-16 15:20:36 -070075source "init/Kconfig"
76
77menu "System Type"
78
79choice
80 prompt "ARM system type"
81 default ARCH_RPC
82
83config ARCH_CLPS7500
84 bool "Cirrus-CL-PS7500FE"
85 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +010086 select ISA
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
88config ARCH_CLPS711X
89 bool "CLPS711x/EP721x-based"
90
91config ARCH_CO285
92 bool "Co-EBSA285"
93 select FOOTBRIDGE
94 select FOOTBRIDGE_ADDIN
95
96config ARCH_EBSA110
97 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +010098 select ISA
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 help
100 This is an evaluation board for the StrongARM processor available
101 from Digital. It has limited hardware on-board, including an onboard
102 Ethernet interface, two PCMCIA sockets, two serial ports and a
103 parallel port.
104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105config ARCH_FOOTBRIDGE
106 bool "FootBridge"
107 select FOOTBRIDGE
108
109config ARCH_INTEGRATOR
110 bool "Integrator"
111 select ARM_AMBA
112 select ICST525
113
114config ARCH_IOP3XX
115 bool "IOP3xx-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100116 select PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
118config ARCH_IXP4XX
119 bool "IXP4xx-based"
120 select DMABOUNCE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100121 select PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
123config ARCH_IXP2000
124 bool "IXP2400/2800-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100125 select PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
127config ARCH_L7200
128 bool "LinkUp-L7200"
129 select FIQ
130 help
131 Say Y here if you intend to run this kernel on a LinkUp Systems
132 L7200 Software Development Board which uses an ARM720T processor.
133 Information on this board can be obtained at:
134
135 <http://www.linkupsys.com/>
136
137 If you have any questions or comments about the Linux kernel port
138 to this board, send e-mail to <sjhill@cotw.com>.
139
140config ARCH_PXA
141 bool "PXA2xx-based"
Al Viro034d2f52005-12-19 16:27:59 -0500142 select ARCH_MTD_XIP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143
144config ARCH_RPC
145 bool "RiscPC"
146 select ARCH_ACORN
147 select FIQ
148 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100149 select ARCH_MAY_HAVE_PC_FDC
Russell King065909b2006-01-04 15:44:16 +0000150 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 help
152 On the Acorn Risc-PC, Linux can support the internal IDE disk and
153 CD-ROM interface, serial and parallel port, and the floppy drive.
154
155config ARCH_SA1100
156 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100157 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100158 select ARCH_DISCONTIGMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500159 select ARCH_MTD_XIP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160
161config ARCH_S3C2410
162 bool "Samsung S3C2410"
163 help
164 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
165 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
166 the Samsung SMDK2410 development board (and derviatives).
167
168config ARCH_SHARK
169 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100170 select ISA
171 select ISA_DMA
172 select PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
174config ARCH_LH7A40X
175 bool "Sharp LH7A40X"
176 help
177 Say Y here for systems based on one of the Sharp LH7A40X
178 System on a Chip processors. These CPUs include an ARM922T
179 core with a wide array of integrated devices for
180 hand-held and low-power applications.
181
182config ARCH_OMAP
183 bool "TI OMAP"
184
185config ARCH_VERSATILE
186 bool "Versatile"
187 select ARM_AMBA
Russell Kingfa0fe482006-01-13 21:30:48 +0000188 select ARM_VIC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 select ICST307
190 help
191 This enables support for ARM Ltd Versatile board.
192
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000193config ARCH_REALVIEW
194 bool "RealView"
195 select ARM_AMBA
196 select ICST307
197 help
198 This enables support for ARM Ltd RealView boards.
199
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200config ARCH_IMX
201 bool "IMX"
202
203config ARCH_H720X
204 bool "Hynix-HMS720x-based"
Russell King065909b2006-01-04 15:44:16 +0000205 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 help
207 This enables support for systems based on the Hynix HMS720x
208
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100209config ARCH_AAEC2000
210 bool "Agilent AAEC-2000 based"
Bellido Nicolas049eb322005-10-28 16:51:44 +0100211 select ARM_AMBA
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100212 help
213 This enables support for systems based on the Agilent AAEC-2000
214
SAN People73a59c12006-01-09 17:05:41 +0000215config ARCH_AT91RM9200
216 bool "AT91RM9200"
217 help
218 Say Y here if you intend to run this kernel on an AT91RM9200-based
219 board.
220
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221endchoice
222
223source "arch/arm/mach-clps711x/Kconfig"
224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225source "arch/arm/mach-footbridge/Kconfig"
226
227source "arch/arm/mach-integrator/Kconfig"
228
229source "arch/arm/mach-iop3xx/Kconfig"
230
231source "arch/arm/mach-ixp4xx/Kconfig"
232
233source "arch/arm/mach-ixp2000/Kconfig"
234
235source "arch/arm/mach-pxa/Kconfig"
236
237source "arch/arm/mach-sa1100/Kconfig"
238
Tony Lindgrend48af152005-07-10 19:58:17 +0100239source "arch/arm/plat-omap/Kconfig"
240
241source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242
Tony Lindgren1dbae812005-11-10 14:26:51 +0000243source "arch/arm/mach-omap2/Kconfig"
244
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245source "arch/arm/mach-s3c2410/Kconfig"
246
247source "arch/arm/mach-lh7a40x/Kconfig"
248
249source "arch/arm/mach-imx/Kconfig"
250
251source "arch/arm/mach-h720x/Kconfig"
252
253source "arch/arm/mach-versatile/Kconfig"
254
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100255source "arch/arm/mach-aaec2000/Kconfig"
256
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000257source "arch/arm/mach-realview/Kconfig"
258
SAN People73a59c12006-01-09 17:05:41 +0000259source "arch/arm/mach-at91rm9200/Kconfig"
260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261# Definitions to make life easier
262config ARCH_ACORN
263 bool
264
265source arch/arm/mm/Kconfig
266
267# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
268config XSCALE_PMU
269 bool
270 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
271 default y
272
273endmenu
274
275source "arch/arm/common/Kconfig"
276
277config FORCE_MAX_ZONEORDER
278 int
279 depends on SA1111
280 default "9"
281
282menu "Bus support"
283
284config ARM_AMBA
285 bool
286
287config ISA
288 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 help
290 Find out whether you have ISA slots on your motherboard. ISA is the
291 name of a bus system, i.e. the way the CPU talks to the other stuff
292 inside your box. Other bus systems are PCI, EISA, MicroChannel
293 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
294 newer boards don't support it. If you have ISA, say Y, otherwise N.
295
Russell King065909b2006-01-04 15:44:16 +0000296# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297config ISA_DMA
298 bool
Russell King065909b2006-01-04 15:44:16 +0000299 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
Russell King065909b2006-01-04 15:44:16 +0000301# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100302config ISA_DMA_API
303 bool
Al Viro5cae8412005-05-04 05:39:22 +0100304
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305config PCI
Catalin Marinasc0da0852005-06-20 18:51:06 +0100306 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 help
308 Find out whether you have a PCI motherboard. PCI is the name of a
309 bus system, i.e. the way the CPU talks to the other stuff inside
310 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
311 VESA. If you have PCI, say Y, otherwise N.
312
313 The PCI-HOWTO, available from
314 <http://www.tldp.org/docs.html#howto>, contains valuable
315 information about which PCI hardware does work under Linux and which
316 doesn't.
317
318# Select the host bridge type
319config PCI_HOST_VIA82C505
320 bool
321 depends on PCI && ARCH_SHARK
322 default y
323
324source "drivers/pci/Kconfig"
325
326source "drivers/pcmcia/Kconfig"
327
328endmenu
329
330menu "Kernel Features"
331
332config SMP
333 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell Kingf6db4492005-11-07 21:30:21 +0000334 depends on EXPERIMENTAL && REALVIEW_MPCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 help
336 This enables support for systems with more than one CPU. If you have
337 a system with only one CPU, like most personal computers, say N. If
338 you have a system with more than one CPU, say Y.
339
340 If you say N here, the kernel will run on single and multiprocessor
341 machines, but will use only one CPU of a multiprocessor machine. If
342 you say Y here, the kernel will run on many, but not all, single
343 processor machines. On a single processor machine, the kernel will
344 run faster if you say N here.
345
Arthur Othieno12c62c22005-09-10 00:26:22 -0700346 See also the <file:Documentation/smp.txt>,
347 <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
349 <http://www.linuxdoc.org/docs.html#howto>.
350
351 If you don't know what to do here, say N.
352
353config NR_CPUS
354 int "Maximum number of CPUs (2-32)"
355 range 2 32
356 depends on SMP
357 default "4"
358
Russell Kinga054a812005-11-02 22:24:33 +0000359config HOTPLUG_CPU
360 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
361 depends on SMP && HOTPLUG && EXPERIMENTAL
362 help
363 Say Y here to experiment with turning CPUs off and on. CPUs
364 can be controlled through /sys/devices/system/cpu.
365
Russell King37ee16a2005-11-08 19:08:05 +0000366config LOCAL_TIMERS
367 bool "Use local timer interrupts"
Russell King2a98beb2005-11-09 10:50:29 +0000368 depends on SMP && REALVIEW_MPCORE
Russell King37ee16a2005-11-08 19:08:05 +0000369 default y
370 help
371 Enable support for local timers on SMP platforms, rather then the
372 legacy IPI broadcast method. Local timers allows the system
373 accounting to be spread across the timer interval, preventing a
374 "thundering herd" at every timer tick.
375
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376config PREEMPT
377 bool "Preemptible Kernel (EXPERIMENTAL)"
378 depends on EXPERIMENTAL
379 help
380 This option reduces the latency of the kernel when reacting to
381 real-time or interactive events by allowing a low priority process to
382 be preempted even if it is in kernel mode executing a system call.
383 This allows applications to run more reliably even when the system is
384 under load.
385
386 Say Y here if you are building a kernel for a desktop, embedded
387 or real-time system. Say N if you are unsure.
388
Russell King8749af62005-06-25 19:39:45 +0100389config NO_IDLE_HZ
390 bool "Dynamic tick timer"
391 help
392 Select this option if you want to disable continuous timer ticks
393 and have them programmed to occur as required. This option saves
394 power as the system can remain in idle state for longer.
395
396 By default dynamic tick is disabled during the boot, and can be
397 manually enabled with:
398
399 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
400
401 Alternatively, if you want dynamic tick automatically enabled
402 during boot, pass "dyntick=enable" via the kernel command string.
403
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100404 Please note that dynamic tick may affect the accuracy of
405 timekeeping on some platforms depending on the implementation.
Nicolas Pitre569d2c32005-09-01 12:48:48 +0100406 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
407 to have accurate timekeeping with dynamic tick.
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100408
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000409config AEABI
410 bool "Use the ARM EABI to compile the kernel"
411 help
412 This option allows for the kernel to be compiled using the latest
413 ARM ABI (aka EABI). This is only useful if you are using a user
414 space environment that is also compiled with EABI.
415
416 Since there are major incompatibilities between the legacy ABI and
417 EABI, especially with regard to structure member alignment, this
418 option also changes the kernel syscall calling convention to
419 disambiguate both ABIs and allow for backward compatibility support
420 (selected with CONFIG_OABI_COMPAT).
421
422 To use this you need GCC version 4.0.0 or later.
423
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000424config OABI_COMPAT
425 bool "Allow old ABI binaries to run with this kernel"
426 depends on AEABI
427 default y
428 help
429 This option preserves the old syscall interface along with the
430 new (ARM EABI) one. It also provides a compatibility layer to
431 intercept syscalls that have structure arguments which layout
432 in memory differs between the legacy ABI and the new ARM EABI
433 (only for non "thumb" binaries). This option adds a tiny
434 overhead to all syscalls and produces a slightly larger kernel.
435 If you know you'll be using only pure EABI user space then you
436 can say N here. If this option is not selected and you attempt
437 to execute a legacy ABI binary then the result will be
438 UNPREDICTABLE (in fact it can be predicted that it won't work
439 at all). If in doubt say Y.
440
Dave Hansen3f22ab22005-06-23 00:07:43 -0700441config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100443 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 help
445 Say Y to support efficient handling of discontiguous physical memory,
446 for architectures which are either NUMA (Non-Uniform Memory Access)
447 or have huge holes in the physical address space for other reasons.
448 See <file:Documentation/vm/numa> for more.
449
Dave Hansen3f22ab22005-06-23 00:07:43 -0700450source "mm/Kconfig"
451
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452config LEDS
453 bool "Timer and CPU usage LEDs"
454 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
455 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
456 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
457 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000458 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
459 ARCH_AT91RM9200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 help
461 If you say Y here, the LEDs on your machine will be used
462 to provide useful information about your current system status.
463
464 If you are compiling a kernel for a NetWinder or EBSA-285, you will
465 be able to select which LEDs are active using the options below. If
466 you are compiling a kernel for the EBSA-110 or the LART however, the
467 red LED will simply flash regularly to indicate that the system is
468 still functional. It is safe to say Y here if you have a CATS
469 system, but the driver will do nothing.
470
471config LEDS_TIMER
472 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
473 MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
474 depends on LEDS
475 default y if ARCH_EBSA110
476 help
477 If you say Y here, one of the system LEDs (the green one on the
478 NetWinder, the amber one on the EBSA285, or the red one on the LART)
479 will flash regularly to indicate that the system is still
480 operational. This is mainly useful to kernel hackers who are
481 debugging unstable kernels.
482
483 The LART uses the same LED for both Timer LED and CPU usage LED
484 functions. You may choose to use both, but the Timer LED function
485 will overrule the CPU usage LED.
486
487config LEDS_CPU
488 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
489 !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
490 depends on LEDS
491 help
492 If you say Y here, the red LED will be used to give a good real
493 time indication of CPU usage, by lighting whenever the idle task
494 is not currently executing.
495
496 The LART uses the same LED for both Timer LED and CPU usage LED
497 functions. You may choose to use both, but the Timer LED function
498 will overrule the CPU usage LED.
499
500config ALIGNMENT_TRAP
501 bool
502 default y if !ARCH_EBSA110
503 help
504 ARM processors can not fetch/store information which is not
505 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
506 address divisible by 4. On 32-bit ARM processors, these non-aligned
507 fetch/store instructions will be emulated in software if you say
508 here, which has a severe performance impact. This is necessary for
509 correct operation of some network protocols. With an IP-only
510 configuration it is safe to say N, otherwise say Y.
511
512endmenu
513
514menu "Boot options"
515
516# Compressed boot loader in ROM. Yes, we really want to ask about
517# TEXT and BSS so we preserve their values in the config files.
518config ZBOOT_ROM_TEXT
519 hex "Compressed ROM boot loader base address"
520 default "0"
521 help
522 The physical address at which the ROM-able zImage is to be
523 placed in the target. Platforms which normally make use of
524 ROM-able zImage formats normally set this to a suitable
525 value in their defconfig file.
526
527 If ZBOOT_ROM is not enabled, this has no effect.
528
529config ZBOOT_ROM_BSS
530 hex "Compressed ROM boot loader BSS address"
531 default "0"
532 help
533 The base address of 64KiB of read/write memory in the target
534 for the ROM-able zImage, which must be available while the
535 decompressor is running. Platforms which normally make use of
536 ROM-able zImage formats normally set this to a suitable
537 value in their defconfig file.
538
539 If ZBOOT_ROM is not enabled, this has no effect.
540
541config ZBOOT_ROM
542 bool "Compressed boot loader in ROM/flash"
543 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
544 help
545 Say Y here if you intend to execute your compressed kernel image
546 (zImage) directly from ROM or flash. If unsure, say N.
547
548config CMDLINE
549 string "Default kernel command string"
550 default ""
551 help
552 On some architectures (EBSA110 and CATS), there is currently no way
553 for the boot loader to pass arguments to the kernel. For these
554 architectures, you should supply some command-line options at build
555 time by entering them here. As a minimum, you should specify the
556 memory size and the root device (e.g., mem=64M root=/dev/nfs).
557
558config XIP_KERNEL
559 bool "Kernel Execute-In-Place from ROM"
560 depends on !ZBOOT_ROM
561 help
562 Execute-In-Place allows the kernel to run from non-volatile storage
563 directly addressable by the CPU, such as NOR flash. This saves RAM
564 space since the text section of the kernel is not loaded from flash
565 to RAM. Read-write sections, such as the data section and stack,
566 are still copied to RAM. The XIP kernel is not compressed since
567 it has to run directly from flash, so it will take more space to
568 store it. The flash address used to link the kernel object files,
569 and for storing it, is configuration dependent. Therefore, if you
570 say Y here, you must know the proper physical address where to
571 store the kernel image depending on your own flash memory usage.
572
573 Also note that the make target becomes "make xipImage" rather than
574 "make zImage" or "make Image". The final kernel binary to put in
575 ROM memory will be arch/arm/boot/xipImage.
576
577 If unsure, say N.
578
579config XIP_PHYS_ADDR
580 hex "XIP Kernel Physical Location"
581 depends on XIP_KERNEL
582 default "0x00080000"
583 help
584 This is the physical address in your flash memory the kernel will
585 be linked for and stored to. This address is dependent on your
586 own flash usage.
587
588endmenu
589
Tony Lindgrenec6bced2005-07-10 19:58:20 +0100590if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591
592menu "CPU Frequency scaling"
593
594source "drivers/cpufreq/Kconfig"
595
596config CPU_FREQ_SA1100
597 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100598 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 -0700599 default y
600
601config CPU_FREQ_SA1110
602 bool
603 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
604 default y
605
606config CPU_FREQ_INTEGRATOR
607 tristate "CPUfreq driver for ARM Integrator CPUs"
608 depends on ARCH_INTEGRATOR && CPU_FREQ
609 default y
610 help
611 This enables the CPUfreq driver for ARM Integrator CPUs.
612
613 For details, take a look at <file:Documentation/cpu-freq>.
614
615 If in doubt, say Y.
616
617endmenu
618
619endif
620
621menu "Floating point emulation"
622
623comment "At least one emulation must be selected"
624
625config FPE_NWFPE
626 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000627 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 ---help---
629 Say Y to include the NWFPE floating point emulator in the kernel.
630 This is necessary to run most binaries. Linux does not currently
631 support floating point hardware so you need to say Y here even if
632 your machine has an FPA or floating point co-processor podule.
633
634 You may say N here if you are going to load the Acorn FPEmulator
635 early in the bootup.
636
637config FPE_NWFPE_XP
638 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +0000639 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640 help
641 Say Y to include 80-bit support in the kernel floating-point
642 emulator. Otherwise, only 32 and 64-bit support is compiled in.
643 Note that gcc does not generate 80-bit operations by default,
644 so in most cases this option only enlarges the size of the
645 floating point emulator without any good reason.
646
647 You almost surely want to say N here.
648
649config FPE_FASTFPE
650 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000651 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 ---help---
653 Say Y here to include the FAST floating point emulator in the kernel.
654 This is an experimental much faster emulator which now also has full
655 precision for the mantissa. It does not support any exceptions.
656 It is very simple, and approximately 3-6 times faster than NWFPE.
657
658 It should be sufficient for most programs. It may be not suitable
659 for scientific calculations, but you have to check this for yourself.
660 If you do not feel you need a faster FP emulation you should better
661 choose NWFPE.
662
663config VFP
664 bool "VFP-format floating point maths"
665 depends on CPU_V6 || CPU_ARM926T
666 help
667 Say Y to include VFP support code in the kernel. This is needed
668 if your hardware includes a VFP unit.
669
670 Please see <file:Documentation/arm/VFP/release-notes.txt> for
671 release notes and additional status information.
672
673 Say N if your target does not have VFP hardware.
674
675endmenu
676
677menu "Userspace binary formats"
678
679source "fs/Kconfig.binfmt"
680
681config ARTHUR
682 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000683 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 help
685 Say Y here to include the kernel code necessary if you want to run
686 Acorn RISC OS/Arthur binaries under Linux. This code is still very
687 experimental; if this sounds frightening, say N and sleep in peace.
688 You can also say M here to compile this support as a module (which
689 will be called arthur).
690
691endmenu
692
693menu "Power management options"
694
Russell Kingeceab4a2005-11-15 11:31:41 +0000695source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697config APM
698 tristate "Advanced Power Management Emulation"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 ---help---
700 APM is a BIOS specification for saving power using several different
701 techniques. This is mostly useful for battery powered laptops with
702 APM compliant BIOSes. If you say Y here, the system time will be
703 reset after a RESUME operation, the /proc/apm device will provide
704 battery status information, and user-space programs will receive
705 notification of APM "events" (e.g. battery status change).
706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 In order to use APM, you will need supporting software. For location
708 and more information, read <file:Documentation/pm.txt> and the
709 Battery Powered Linux mini-HOWTO, available from
710 <http://www.tldp.org/docs.html#howto>.
711
712 This driver does not spin down disk drives (see the hdparm(8)
713 manpage ("man 8 hdparm") for that), and it doesn't turn off
714 VESA-compliant "green" monitors.
715
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 Generally, if you don't have a battery in your machine, there isn't
717 much point in using this driver and you should say N. If you get
718 random kernel OOPSes or reboots that don't seem to be related to
719 anything, try disabling/enabling this option (or disabling/enabling
720 APM in your BIOS).
721
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722endmenu
723
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700724source "net/Kconfig"
725
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726menu "Device Drivers"
727
728source "drivers/base/Kconfig"
729
Pavel Machekc35bf4a2005-11-12 20:25:25 +0000730source "drivers/connector/Kconfig"
731
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732if ALIGNMENT_TRAP
733source "drivers/mtd/Kconfig"
734endif
735
736source "drivers/parport/Kconfig"
737
738source "drivers/pnp/Kconfig"
739
740source "drivers/block/Kconfig"
741
742source "drivers/acorn/block/Kconfig"
743
David Brownellbb011b82005-06-12 23:26:05 +0100744if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
745 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
Russell Kingd56c5242005-11-04 17:28:34 +0000746 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747source "drivers/ide/Kconfig"
748endif
749
750source "drivers/scsi/Kconfig"
751
752source "drivers/md/Kconfig"
753
754source "drivers/message/fusion/Kconfig"
755
756source "drivers/ieee1394/Kconfig"
757
758source "drivers/message/i2o/Kconfig"
759
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700760source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
762source "drivers/isdn/Kconfig"
763
764# input before char - char/joystick depends on it. As does USB.
765
766source "drivers/input/Kconfig"
767
768source "drivers/char/Kconfig"
769
770source "drivers/i2c/Kconfig"
771
David Brownell8ae12a02006-01-08 13:34:19 -0800772source "drivers/spi/Kconfig"
773
Jean Delvaread2f9312005-07-02 18:15:49 +0200774source "drivers/hwmon/Kconfig"
775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776#source "drivers/l3/Kconfig"
777
778source "drivers/misc/Kconfig"
779
Russell Kinga4e137a2005-08-18 10:06:59 +0100780source "drivers/mfd/Kconfig"
781
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782source "drivers/media/Kconfig"
783
784source "drivers/video/Kconfig"
785
786source "sound/Kconfig"
787
788source "drivers/usb/Kconfig"
789
790source "drivers/mmc/Kconfig"
791
792endmenu
793
794source "fs/Kconfig"
795
796source "arch/arm/oprofile/Kconfig"
797
798source "arch/arm/Kconfig.debug"
799
800source "security/Kconfig"
801
802source "crypto/Kconfig"
803
804source "lib/Kconfig"