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1#
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 select RTC_LIB
12 select SYS_SUPPORTS_APM_EMULATION
13 help
14 The ARM series is a line of low-power-consumption RISC chip designs
15 licensed by ARM Ltd and targeted at embedded applications and
16 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
17 manufactured, but legacy ARM-based PC hardware remains popular in
18 Europe. There is an ARM Linux project with a web page at
19 <http://www.arm.linux.org.uk/>.
20
21config SYS_SUPPORTS_APM_EMULATION
22 bool
23
24config GENERIC_TIME
25 bool
26 default n
27
28config MMU
29 bool
30 default y
31
32config EISA
33 bool
34 ---help---
35 The Extended Industry Standard Architecture (EISA) bus was
36 developed as an open alternative to the IBM MicroChannel bus.
37
38 The EISA bus provided some of the features of the IBM MicroChannel
39 bus while maintaining backward compatibility with cards made for
40 the older ISA bus. The EISA bus saw limited use between 1988 and
41 1995 when it was made obsolete by the PCI bus.
42
43 Say Y here if you are building a kernel for an EISA-based machine.
44
45 Otherwise, say N.
46
47config SBUS
48 bool
49
50config MCA
51 bool
52 help
53 MicroChannel Architecture is found in some IBM PS/2 machines and
54 laptops. It is a bus system similar to PCI or ISA. See
55 <file:Documentation/mca.txt> (and especially the web page given
56 there) before attempting to build an MCA bus kernel.
57
58config GENERIC_HARDIRQS
59 bool
60 default y
61
62config TRACE_IRQFLAGS_SUPPORT
63 bool
64 default y
65
66config HARDIRQS_SW_RESEND
67 bool
68 default y
69
70config GENERIC_IRQ_PROBE
71 bool
72 default y
73
74config RWSEM_GENERIC_SPINLOCK
75 bool
76 default y
77
78config RWSEM_XCHGADD_ALGORITHM
79 bool
80
81config ARCH_HAS_ILOG2_U32
82 bool
83 default n
84
85config ARCH_HAS_ILOG2_U64
86 bool
87 default n
88
89config GENERIC_HWEIGHT
90 bool
91 default y
92
93config GENERIC_CALIBRATE_DELAY
94 bool
95 default y
96
97config GENERIC_BUST_SPINLOCK
98 bool
99
100config ARCH_MAY_HAVE_PC_FDC
101 bool
102
103config ZONE_DMA
104 bool
105 default y
106
107config GENERIC_ISA_DMA
108 bool
109
110config FIQ
111 bool
112
113config ARCH_MTD_XIP
114 bool
115
116config VECTORS_BASE
117 hex
118 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
119 default DRAM_BASE if REMAP_VECTORS_TO_RAM
120 default 0x00000000
121 help
122 The base address of exception vectors.
123
124source "init/Kconfig"
125
126menu "System Type"
127
128choice
129 prompt "ARM system type"
130 default ARCH_VERSATILE
131
132config ARCH_AAEC2000
133 bool "Agilent AAEC-2000 based"
134 select ARM_AMBA
135 help
136 This enables support for systems based on the Agilent AAEC-2000
137
138config ARCH_INTEGRATOR
139 bool "ARM Ltd. Integrator family"
140 select ARM_AMBA
141 select ICST525
142 help
143 Support for ARM's Integrator platform.
144
145config ARCH_REALVIEW
146 bool "ARM Ltd. RealView family"
147 select ARM_AMBA
148 select ICST307
149 help
150 This enables support for ARM Ltd RealView boards.
151
152config ARCH_VERSATILE
153 bool "ARM Ltd. Versatile family"
154 select ARM_AMBA
155 select ARM_VIC
156 select ICST307
157 help
158 This enables support for ARM Ltd Versatile board.
159
160config ARCH_AT91
161 bool "Atmel AT91"
162 help
163 This enables support for systems based on the Atmel AT91RM9200
164 and AT91SAM9xxx processors.
165
166config ARCH_CLPS7500
167 bool "Cirrus CL-PS7500FE"
168 select TIMER_ACORN
169 select ISA
170 help
171 Support for the Cirrus Logic PS7500FE system-on-a-chip.
172
173config ARCH_CLPS711X
174 bool "Cirrus Logic CLPS711x/EP721x-based"
175 help
176 Support for Cirrus Logic 711x/721x based boards.
177
178config ARCH_CO285
179 bool "Co-EBSA285"
180 select FOOTBRIDGE
181 select FOOTBRIDGE_ADDIN
182 help
183 Support for Intel's EBSA285 companion chip.
184
185config ARCH_EBSA110
186 bool "EBSA-110"
187 select ISA
188 help
189 This is an evaluation board for the StrongARM processor available
190 from Digital. It has limited hardware on-board, including an
191 Ethernet interface, two PCMCIA sockets, two serial ports and a
192 parallel port.
193
194config ARCH_EP93XX
195 bool "EP93xx-based"
196 select ARM_AMBA
197 select ARM_VIC
198 help
199 This enables support for the Cirrus EP93xx series of CPUs.
200
201config ARCH_FOOTBRIDGE
202 bool "FootBridge"
203 select FOOTBRIDGE
204 help
205 Support for systems based on the DC21285 companion chip
206 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
207
208config ARCH_NETX
209 bool "Hilscher NetX based"
210 select ARM_VIC
211 help
212 This enables support for systems based on the Hilscher NetX Soc
213
214config ARCH_H720X
215 bool "Hynix HMS720x-based"
216 select ISA_DMA_API
217 help
218 This enables support for systems based on the Hynix HMS720x
219
220config ARCH_IMX
221 bool "IMX"
222 help
223 Support for Motorola's i.MX family of processors (MX1, MXL).
224
225config ARCH_IOP32X
226 bool "IOP32x-based"
227 depends on MMU
228 select PLAT_IOP
229 select PCI
230 help
231 Support for Intel's 80219 and IOP32X (XScale) family of
232 processors.
233
234config ARCH_IOP33X
235 bool "IOP33x-based"
236 depends on MMU
237 select PLAT_IOP
238 select PCI
239 help
240 Support for Intel's IOP33X (XScale) family of processors.
241
242config ARCH_IOP13XX
243 bool "IOP13xx-based"
244 select PCI
245 help
246 Support for Intel's IOP13XX (XScale) family of processors.
247
248config ARCH_IXP4XX
249 bool "IXP4xx-based"
250 depends on MMU
251 select GENERIC_TIME
252 help
253 Support for Intel's IXP4XX (XScale) family of processors.
254
255config ARCH_IXP2000
256 bool "IXP2400/2800-based"
257 depends on MMU
258 select PCI
259 help
260 Support for Intel's IXP2400/2800 (XScale) family of processors.
261
262config ARCH_IXP23XX
263 bool "IXP23XX-based"
264 depends on MMU
265 select PCI
266 help
267 Support for Intel's IXP23xx (XScale) family of processors.
268
269config ARCH_L7200
270 bool "LinkUp-L7200"
271 select FIQ
272 help
273 Say Y here if you intend to run this kernel on a LinkUp Systems
274 L7200 Software Development Board which uses an ARM720T processor.
275 Information on this board can be obtained at:
276
277 <http://www.linkupsys.com/>
278
279 If you have any questions or comments about the Linux kernel port
280 to this board, send e-mail to <sjhill@cotw.com>.
281
282config ARCH_PNX4008
283 bool "Philips Nexperia PNX4008 Mobile"
284 help
285 This enables support for Philips PNX4008 mobile platform.
286
287config ARCH_PXA
288 bool "PXA2xx-based"
289 depends on MMU
290 select ARCH_MTD_XIP
291 help
292 Support for Intel's PXA2XX processor line.
293
294config ARCH_RPC
295 bool "RiscPC"
296 select ARCH_ACORN
297 select FIQ
298 select TIMER_ACORN
299 select ARCH_MAY_HAVE_PC_FDC
300 select ISA_DMA_API
301 help
302 On the Acorn Risc-PC, Linux can support the internal IDE disk and
303 CD-ROM interface, serial and parallel port, and the floppy drive.
304
305config ARCH_SA1100
306 bool "SA1100-based"
307 select ISA
308 select ARCH_DISCONTIGMEM_ENABLE
309 select ARCH_MTD_XIP
310 help
311 Support for StrongARM 11x0 based boards.
312
313config ARCH_S3C2410
314 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442"
315 help
316 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
317 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
318 the Samsung SMDK2410 development board (and derivatives).
319
320config ARCH_SHARK
321 bool "Shark"
322 select ISA
323 select ISA_DMA
324 select PCI
325 help
326 Support for the StrongARM based Digital DNARD machine, also known
327 as "Shark" (<http://www.shark-linux.de/shark.html>).
328
329config ARCH_LH7A40X
330 bool "Sharp LH7A40X"
331 help
332 Say Y here for systems based on one of the Sharp LH7A40X
333 System on a Chip processors. These CPUs include an ARM922T
334 core with a wide array of integrated devices for
335 hand-held and low-power applications.
336
337config ARCH_OMAP
338 bool "TI OMAP"
339 help
340 Support for TI's OMAP platform (OMAP1 and OMAP2).
341
342endchoice
343
344source "arch/arm/mach-clps711x/Kconfig"
345
346source "arch/arm/mach-ep93xx/Kconfig"
347
348source "arch/arm/mach-footbridge/Kconfig"
349
350source "arch/arm/mach-integrator/Kconfig"
351
352source "arch/arm/mach-iop32x/Kconfig"
353
354source "arch/arm/mach-iop33x/Kconfig"
355
356source "arch/arm/mach-iop13xx/Kconfig"
357
358source "arch/arm/mach-ixp4xx/Kconfig"
359
360source "arch/arm/mach-ixp2000/Kconfig"
361
362source "arch/arm/mach-ixp23xx/Kconfig"
363
364source "arch/arm/mach-pxa/Kconfig"
365
366source "arch/arm/mach-sa1100/Kconfig"
367
368source "arch/arm/plat-omap/Kconfig"
369
370source "arch/arm/mach-omap1/Kconfig"
371
372source "arch/arm/mach-omap2/Kconfig"
373
374source "arch/arm/mach-s3c2410/Kconfig"
375
376source "arch/arm/mach-lh7a40x/Kconfig"
377
378source "arch/arm/mach-imx/Kconfig"
379
380source "arch/arm/mach-h720x/Kconfig"
381
382source "arch/arm/mach-versatile/Kconfig"
383
384source "arch/arm/mach-aaec2000/Kconfig"
385
386source "arch/arm/mach-realview/Kconfig"
387
388source "arch/arm/mach-at91rm9200/Kconfig"
389
390source "arch/arm/mach-netx/Kconfig"
391
392# Definitions to make life easier
393config ARCH_ACORN
394 bool
395
396config PLAT_IOP
397 bool
398
399source arch/arm/mm/Kconfig
400
401config IWMMXT
402 bool "Enable iWMMXt support"
403 depends CPU_XSCALE || CPU_XSC3
404 default y if PXA27x
405 help
406 Enable support for iWMMXt context switching at run time if
407 running on a CPU that supports it.
408
409# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
410config XSCALE_PMU
411 bool
412 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
413 default y
414
415if !MMU
416source "arch/arm/Kconfig-nommu"
417endif
418
419endmenu
420
421source "arch/arm/common/Kconfig"
422
423config FORCE_MAX_ZONEORDER
424 int
425 depends on SA1111
426 default "9"
427
428menu "Bus support"
429
430config ARM_AMBA
431 bool
432
433config ISA
434 bool
435 help
436 Find out whether you have ISA slots on your motherboard. ISA is the
437 name of a bus system, i.e. the way the CPU talks to the other stuff
438 inside your box. Other bus systems are PCI, EISA, MicroChannel
439 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
440 newer boards don't support it. If you have ISA, say Y, otherwise N.
441
442# Select ISA DMA controller support
443config ISA_DMA
444 bool
445 select ISA_DMA_API
446
447# Select ISA DMA interface
448config ISA_DMA_API
449 bool
450
451config PCI
452 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX
453 help
454 Find out whether you have a PCI motherboard. PCI is the name of a
455 bus system, i.e. the way the CPU talks to the other stuff inside
456 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
457 VESA. If you have PCI, say Y, otherwise N.
458
459 The PCI-HOWTO, available from
460 <http://www.tldp.org/docs.html#howto>, contains valuable
461 information about which PCI hardware does work under Linux and which
462 doesn't.
463
464# Select the host bridge type
465config PCI_HOST_VIA82C505
466 bool
467 depends on PCI && ARCH_SHARK
468 default y
469
470source "drivers/pci/Kconfig"
471
472source "drivers/pcmcia/Kconfig"
473
474endmenu
475
476menu "Kernel Features"
477
478config SMP
479 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
480 depends on EXPERIMENTAL && REALVIEW_MPCORE
481 help
482 This enables support for systems with more than one CPU. If you have
483 a system with only one CPU, like most personal computers, say N. If
484 you have a system with more than one CPU, say Y.
485
486 If you say N here, the kernel will run on single and multiprocessor
487 machines, but will use only one CPU of a multiprocessor machine. If
488 you say Y here, the kernel will run on many, but not all, single
489 processor machines. On a single processor machine, the kernel will
490 run faster if you say N here.
491
492 See also the <file:Documentation/smp.txt>,
493 <file:Documentation/i386/IO-APIC.txt>,
494 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
495 <http://www.linuxdoc.org/docs.html#howto>.
496
497 If you don't know what to do here, say N.
498
499config NR_CPUS
500 int "Maximum number of CPUs (2-32)"
501 range 2 32
502 depends on SMP
503 default "4"
504
505config HOTPLUG_CPU
506 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
507 depends on SMP && HOTPLUG && EXPERIMENTAL
508 help
509 Say Y here to experiment with turning CPUs off and on. CPUs
510 can be controlled through /sys/devices/system/cpu.
511
512config LOCAL_TIMERS
513 bool "Use local timer interrupts"
514 depends on SMP && REALVIEW_MPCORE
515 default y
516 help
517 Enable support for local timers on SMP platforms, rather then the
518 legacy IPI broadcast method. Local timers allows the system
519 accounting to be spread across the timer interval, preventing a
520 "thundering herd" at every timer tick.
521
522config PREEMPT
523 bool "Preemptible Kernel (EXPERIMENTAL)"
524 depends on EXPERIMENTAL
525 help
526 This option reduces the latency of the kernel when reacting to
527 real-time or interactive events by allowing a low priority process to
528 be preempted even if it is in kernel mode executing a system call.
529 This allows applications to run more reliably even when the system is
530 under load.
531
532 Say Y here if you are building a kernel for a desktop, embedded
533 or real-time system. Say N if you are unsure.
534
535config NO_IDLE_HZ
536 bool "Dynamic tick timer"
537 help
538 Select this option if you want to disable continuous timer ticks
539 and have them programmed to occur as required. This option saves
540 power as the system can remain in idle state for longer.
541
542 By default dynamic tick is disabled during the boot, and can be
543 manually enabled with:
544
545 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
546
547 Alternatively, if you want dynamic tick automatically enabled
548 during boot, pass "dyntick=enable" via the kernel command string.
549
550 Please note that dynamic tick may affect the accuracy of
551 timekeeping on some platforms depending on the implementation.
552 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
553 to have accurate timekeeping with dynamic tick.
554
555config HZ
556 int
557 default 128 if ARCH_L7200
558 default 200 if ARCH_EBSA110 || ARCH_S3C2410
559 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
560 default 100
561
562config AEABI
563 bool "Use the ARM EABI to compile the kernel"
564 help
565 This option allows for the kernel to be compiled using the latest
566 ARM ABI (aka EABI). This is only useful if you are using a user
567 space environment that is also compiled with EABI.
568
569 Since there are major incompatibilities between the legacy ABI and
570 EABI, especially with regard to structure member alignment, this
571 option also changes the kernel syscall calling convention to
572 disambiguate both ABIs and allow for backward compatibility support
573 (selected with CONFIG_OABI_COMPAT).
574
575 To use this you need GCC version 4.0.0 or later.
576
577config OABI_COMPAT
578 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
579 depends on AEABI && EXPERIMENTAL
580 default y
581 help
582 This option preserves the old syscall interface along with the
583 new (ARM EABI) one. It also provides a compatibility layer to
584 intercept syscalls that have structure arguments which layout
585 in memory differs between the legacy ABI and the new ARM EABI
586 (only for non "thumb" binaries). This option adds a tiny
587 overhead to all syscalls and produces a slightly larger kernel.
588 If you know you'll be using only pure EABI user space then you
589 can say N here. If this option is not selected and you attempt
590 to execute a legacy ABI binary then the result will be
591 UNPREDICTABLE (in fact it can be predicted that it won't work
592 at all). If in doubt say Y.
593
594config ARCH_DISCONTIGMEM_ENABLE
595 bool
596 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
597 help
598 Say Y to support efficient handling of discontiguous physical memory,
599 for architectures which are either NUMA (Non-Uniform Memory Access)
600 or have huge holes in the physical address space for other reasons.
601 See <file:Documentation/vm/numa> for more.
602
603config NODES_SHIFT
604 int
605 default "4" if ARCH_LH7A40X
606 default "2"
607 depends on NEED_MULTIPLE_NODES
608
609source "mm/Kconfig"
610
611config LEDS
612 bool "Timer and CPU usage LEDs"
613 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
614 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
615 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
616 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
617 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
618 ARCH_AT91 || MACH_TRIZEPS4
619 help
620 If you say Y here, the LEDs on your machine will be used
621 to provide useful information about your current system status.
622
623 If you are compiling a kernel for a NetWinder or EBSA-285, you will
624 be able to select which LEDs are active using the options below. If
625 you are compiling a kernel for the EBSA-110 or the LART however, the
626 red LED will simply flash regularly to indicate that the system is
627 still functional. It is safe to say Y here if you have a CATS
628 system, but the driver will do nothing.
629
630config LEDS_TIMER
631 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
632 MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
633 depends on LEDS
634 default y if ARCH_EBSA110
635 help
636 If you say Y here, one of the system LEDs (the green one on the
637 NetWinder, the amber one on the EBSA285, or the red one on the LART)
638 will flash regularly to indicate that the system is still
639 operational. This is mainly useful to kernel hackers who are
640 debugging unstable kernels.
641
642 The LART uses the same LED for both Timer LED and CPU usage LED
643 functions. You may choose to use both, but the Timer LED function
644 will overrule the CPU usage LED.
645
646config LEDS_CPU
647 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
648 !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
649 depends on LEDS
650 help
651 If you say Y here, the red LED will be used to give a good real
652 time indication of CPU usage, by lighting whenever the idle task
653 is not currently executing.
654
655 The LART uses the same LED for both Timer LED and CPU usage LED
656 functions. You may choose to use both, but the Timer LED function
657 will overrule the CPU usage LED.
658
659config ALIGNMENT_TRAP
660 bool
661 depends on CPU_CP15_MMU
662 default y if !ARCH_EBSA110
663 help
664 ARM processors cannot fetch/store information which is not
665 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
666 address divisible by 4. On 32-bit ARM processors, these non-aligned
667 fetch/store instructions will be emulated in software if you say
668 here, which has a severe performance impact. This is necessary for
669 correct operation of some network protocols. With an IP-only
670 configuration it is safe to say N, otherwise say Y.
671
672endmenu
673
674menu "Boot options"
675
676# Compressed boot loader in ROM. Yes, we really want to ask about
677# TEXT and BSS so we preserve their values in the config files.
678config ZBOOT_ROM_TEXT
679 hex "Compressed ROM boot loader base address"
680 default "0"
681 help
682 The physical address at which the ROM-able zImage is to be
683 placed in the target. Platforms which normally make use of
684 ROM-able zImage formats normally set this to a suitable
685 value in their defconfig file.
686
687 If ZBOOT_ROM is not enabled, this has no effect.
688
689config ZBOOT_ROM_BSS
690 hex "Compressed ROM boot loader BSS address"
691 default "0"
692 help
693 The base address of an area of read/write memory in the target
694 for the ROM-able zImage which must be available while the
695 decompressor is running. It must be large enough to hold the
696 entire decompressed kernel plus an additional 128 KiB.
697 Platforms which normally make use of ROM-able zImage formats
698 normally set this to a suitable value in their defconfig file.
699
700 If ZBOOT_ROM is not enabled, this has no effect.
701
702config ZBOOT_ROM
703 bool "Compressed boot loader in ROM/flash"
704 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
705 help
706 Say Y here if you intend to execute your compressed kernel image
707 (zImage) directly from ROM or flash. If unsure, say N.
708
709config CMDLINE
710 string "Default kernel command string"
711 default ""
712 help
713 On some architectures (EBSA110 and CATS), there is currently no way
714 for the boot loader to pass arguments to the kernel. For these
715 architectures, you should supply some command-line options at build
716 time by entering them here. As a minimum, you should specify the
717 memory size and the root device (e.g., mem=64M root=/dev/nfs).
718
719config XIP_KERNEL
720 bool "Kernel Execute-In-Place from ROM"
721 depends on !ZBOOT_ROM
722 help
723 Execute-In-Place allows the kernel to run from non-volatile storage
724 directly addressable by the CPU, such as NOR flash. This saves RAM
725 space since the text section of the kernel is not loaded from flash
726 to RAM. Read-write sections, such as the data section and stack,
727 are still copied to RAM. The XIP kernel is not compressed since
728 it has to run directly from flash, so it will take more space to
729 store it. The flash address used to link the kernel object files,
730 and for storing it, is configuration dependent. Therefore, if you
731 say Y here, you must know the proper physical address where to
732 store the kernel image depending on your own flash memory usage.
733
734 Also note that the make target becomes "make xipImage" rather than
735 "make zImage" or "make Image". The final kernel binary to put in
736 ROM memory will be arch/arm/boot/xipImage.
737
738 If unsure, say N.
739
740config XIP_PHYS_ADDR
741 hex "XIP Kernel Physical Location"
742 depends on XIP_KERNEL
743 default "0x00080000"
744 help
745 This is the physical address in your flash memory the kernel will
746 be linked for and stored to. This address is dependent on your
747 own flash usage.
748
749endmenu
750
751if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX )
752
753menu "CPU Frequency scaling"
754
755source "drivers/cpufreq/Kconfig"
756
757config CPU_FREQ_SA1100
758 bool
759 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
760 default y
761
762config CPU_FREQ_SA1110
763 bool
764 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
765 default y
766
767config CPU_FREQ_INTEGRATOR
768 tristate "CPUfreq driver for ARM Integrator CPUs"
769 depends on ARCH_INTEGRATOR && CPU_FREQ
770 default y
771 help
772 This enables the CPUfreq driver for ARM Integrator CPUs.
773
774 For details, take a look at <file:Documentation/cpu-freq>.
775
776 If in doubt, say Y.
777
778config CPU_FREQ_IMX
779 tristate "CPUfreq driver for i.MX CPUs"
780 depends on ARCH_IMX && CPU_FREQ
781 default n
782 help
783 This enables the CPUfreq driver for i.MX CPUs.
784
785 If in doubt, say N.
786
787endmenu
788
789endif
790
791menu "Floating point emulation"
792
793comment "At least one emulation must be selected"
794
795config FPE_NWFPE
796 bool "NWFPE math emulation"
797 depends on !AEABI || OABI_COMPAT
798 ---help---
799 Say Y to include the NWFPE floating point emulator in the kernel.
800 This is necessary to run most binaries. Linux does not currently
801 support floating point hardware so you need to say Y here even if
802 your machine has an FPA or floating point co-processor podule.
803
804 You may say N here if you are going to load the Acorn FPEmulator
805 early in the bootup.
806
807config FPE_NWFPE_XP
808 bool "Support extended precision"
809 depends on FPE_NWFPE
810 help
811 Say Y to include 80-bit support in the kernel floating-point
812 emulator. Otherwise, only 32 and 64-bit support is compiled in.
813 Note that gcc does not generate 80-bit operations by default,
814 so in most cases this option only enlarges the size of the
815 floating point emulator without any good reason.
816
817 You almost surely want to say N here.
818
819config FPE_FASTFPE
820 bool "FastFPE math emulation (EXPERIMENTAL)"
821 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
822 ---help---
823 Say Y here to include the FAST floating point emulator in the kernel.
824 This is an experimental much faster emulator which now also has full
825 precision for the mantissa. It does not support any exceptions.
826 It is very simple, and approximately 3-6 times faster than NWFPE.
827
828 It should be sufficient for most programs. It may be not suitable
829 for scientific calculations, but you have to check this for yourself.
830 If you do not feel you need a faster FP emulation you should better
831 choose NWFPE.
832
833config VFP
834 bool "VFP-format floating point maths"
835 depends on CPU_V6 || CPU_ARM926T
836 help
837 Say Y to include VFP support code in the kernel. This is needed
838 if your hardware includes a VFP unit.
839
840 Please see <file:Documentation/arm/VFP/release-notes.txt> for
841 release notes and additional status information.
842
843 Say N if your target does not have VFP hardware.
844
845endmenu
846
847menu "Userspace binary formats"
848
849source "fs/Kconfig.binfmt"
850
851config ARTHUR
852 tristate "RISC OS personality"
853 depends on !AEABI
854 help
855 Say Y here to include the kernel code necessary if you want to run
856 Acorn RISC OS/Arthur binaries under Linux. This code is still very
857 experimental; if this sounds frightening, say N and sleep in peace.
858 You can also say M here to compile this support as a module (which
859 will be called arthur).
860
861endmenu
862
863menu "Power management options"
864
865source "kernel/power/Kconfig"
866
867endmenu
868
869source "net/Kconfig"
870
871menu "Device Drivers"
872
873source "drivers/base/Kconfig"
874
875source "drivers/connector/Kconfig"
876
877if ALIGNMENT_TRAP || !CPU_CP15_MMU
878source "drivers/mtd/Kconfig"
879endif
880
881source "drivers/parport/Kconfig"
882
883source "drivers/pnp/Kconfig"
884
885source "drivers/block/Kconfig"
886
887source "drivers/acorn/block/Kconfig"
888
889if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
890 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
891 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
892 || ARCH_IXP23XX
893source "drivers/ide/Kconfig"
894endif
895
896source "drivers/scsi/Kconfig"
897
898source "drivers/ata/Kconfig"
899
900source "drivers/md/Kconfig"
901
902source "drivers/message/fusion/Kconfig"
903
904source "drivers/ieee1394/Kconfig"
905
906source "drivers/message/i2o/Kconfig"
907
908source "drivers/net/Kconfig"
909
910source "drivers/isdn/Kconfig"
911
912# input before char - char/joystick depends on it. As does USB.
913
914source "drivers/input/Kconfig"
915
916source "drivers/char/Kconfig"
917
918source "drivers/i2c/Kconfig"
919
920source "drivers/spi/Kconfig"
921
922source "drivers/w1/Kconfig"
923
924source "drivers/hwmon/Kconfig"
925
926#source "drivers/l3/Kconfig"
927
928source "drivers/misc/Kconfig"
929
930source "drivers/mfd/Kconfig"
931
932source "drivers/leds/Kconfig"
933
934source "drivers/media/Kconfig"
935
936source "drivers/video/Kconfig"
937
938source "sound/Kconfig"
939
940source "drivers/hid/Kconfig"
941
942source "drivers/usb/Kconfig"
943
944source "drivers/mmc/Kconfig"
945
946source "drivers/rtc/Kconfig"
947
948endmenu
949
950source "fs/Kconfig"
951
952source "arch/arm/oprofile/Kconfig"
953
954source "arch/arm/Kconfig.debug"
955
956source "security/Kconfig"
957
958source "crypto/Kconfig"
959
960source "lib/Kconfig"
Linux kernel - Deliverables
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