[ARM] 4197/1: S3C2443: IRQ number updates
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / Kconfig
CommitLineData
1da177e4
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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
12b824fb 11 select RTC_LIB
1da177e4
LT
12 help
13 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 14 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 15 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 16 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
17 Europe. There is an ARM Linux project with a web page at
18 <http://www.arm.linux.org.uk/>.
19
746140c7
KH
20config GENERIC_TIME
21 bool
22 default n
23
1da177e4
LT
24config MMU
25 bool
26 default y
27
28config EISA
29 bool
30 ---help---
31 The Extended Industry Standard Architecture (EISA) bus was
32 developed as an open alternative to the IBM MicroChannel bus.
33
34 The EISA bus provided some of the features of the IBM MicroChannel
35 bus while maintaining backward compatibility with cards made for
36 the older ISA bus. The EISA bus saw limited use between 1988 and
37 1995 when it was made obsolete by the PCI bus.
38
39 Say Y here if you are building a kernel for an EISA-based machine.
40
41 Otherwise, say N.
42
43config SBUS
44 bool
45
46config MCA
47 bool
48 help
49 MicroChannel Architecture is found in some IBM PS/2 machines and
50 laptops. It is a bus system similar to PCI or ISA. See
51 <file:Documentation/mca.txt> (and especially the web page given
52 there) before attempting to build an MCA bus kernel.
53
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54config GENERIC_HARDIRQS
55 bool
56 default y
57
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RK
58config TRACE_IRQFLAGS_SUPPORT
59 bool
60 default y
61
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62config HARDIRQS_SW_RESEND
63 bool
64 default y
65
66config GENERIC_IRQ_PROBE
67 bool
68 default y
69
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70config RWSEM_GENERIC_SPINLOCK
71 bool
72 default y
73
74config RWSEM_XCHGADD_ALGORITHM
75 bool
76
f0d1b0b3
DH
77config ARCH_HAS_ILOG2_U32
78 bool
79 default n
80
81config ARCH_HAS_ILOG2_U64
82 bool
83 default n
84
b89c3b16
AM
85config GENERIC_HWEIGHT
86 bool
87 default y
88
1da177e4
LT
89config GENERIC_CALIBRATE_DELAY
90 bool
91 default y
92
93config GENERIC_BUST_SPINLOCK
94 bool
95
a08b6b79
AV
96config ARCH_MAY_HAVE_PC_FDC
97 bool
98
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99config GENERIC_ISA_DMA
100 bool
101
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102config FIQ
103 bool
104
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AV
105config ARCH_MTD_XIP
106 bool
107
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HC
108config VECTORS_BASE
109 hex
6afd6fae 110 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
111 default DRAM_BASE if REMAP_VECTORS_TO_RAM
112 default 0x00000000
113 help
114 The base address of exception vectors.
115
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116source "init/Kconfig"
117
118menu "System Type"
119
120choice
121 prompt "ARM system type"
6a0e2430 122 default ARCH_VERSATILE
1da177e4 123
4af6fee1
DS
124config ARCH_AAEC2000
125 bool "Agilent AAEC-2000 based"
126 select ARM_AMBA
127 help
128 This enables support for systems based on the Agilent AAEC-2000
129
130config ARCH_INTEGRATOR
131 bool "ARM Ltd. Integrator family"
132 select ARM_AMBA
133 select ICST525
134 help
135 Support for ARM's Integrator platform.
136
137config ARCH_REALVIEW
138 bool "ARM Ltd. RealView family"
139 select ARM_AMBA
140 select ICST307
141 help
142 This enables support for ARM Ltd RealView boards.
143
144config ARCH_VERSATILE
145 bool "ARM Ltd. Versatile family"
146 select ARM_AMBA
147 select ARM_VIC
148 select ICST307
149 help
150 This enables support for ARM Ltd Versatile board.
151
8fc5ffa0
AV
152config ARCH_AT91
153 bool "Atmel AT91"
4af6fee1 154 help
8fc5ffa0
AV
155 This enables support for systems based on the Atmel AT91RM9200
156 and AT91SAM9xxx processors.
4af6fee1 157
1da177e4 158config ARCH_CLPS7500
4af6fee1 159 bool "Cirrus CL-PS7500FE"
1da177e4 160 select TIMER_ACORN
f7e68bbf 161 select ISA
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MM
162 help
163 Support for the Cirrus Logic PS7500FE system-on-a-chip.
1da177e4
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164
165config ARCH_CLPS711X
4af6fee1 166 bool "Cirrus Logic CLPS711x/EP721x-based"
f999b8bd
MM
167 help
168 Support for Cirrus Logic 711x/721x based boards.
1da177e4
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169
170config ARCH_CO285
171 bool "Co-EBSA285"
172 select FOOTBRIDGE
173 select FOOTBRIDGE_ADDIN
f999b8bd
MM
174 help
175 Support for Intel's EBSA285 companion chip.
1da177e4
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176
177config ARCH_EBSA110
178 bool "EBSA-110"
f7e68bbf 179 select ISA
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180 help
181 This is an evaluation board for the StrongARM processor available
f6c8965a 182 from Digital. It has limited hardware on-board, including an
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183 Ethernet interface, two PCMCIA sockets, two serial ports and a
184 parallel port.
185
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186config ARCH_EP93XX
187 bool "EP93xx-based"
188 select ARM_AMBA
189 select ARM_VIC
190 help
191 This enables support for the Cirrus EP93xx series of CPUs.
192
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193config ARCH_FOOTBRIDGE
194 bool "FootBridge"
195 select FOOTBRIDGE
f999b8bd
MM
196 help
197 Support for systems based on the DC21285 companion chip
198 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 199
4af6fee1
DS
200config ARCH_NETX
201 bool "Hilscher NetX based"
202 select ARM_VIC
f999b8bd 203 help
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DS
204 This enables support for systems based on the Hilscher NetX Soc
205
206config ARCH_H720X
207 bool "Hynix HMS720x-based"
208 select ISA_DMA_API
209 help
210 This enables support for systems based on the Hynix HMS720x
211
212config ARCH_IMX
213 bool "IMX"
214 help
215 Support for Motorola's i.MX family of processors (MX1, MXL).
1da177e4 216
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LB
217config ARCH_IOP32X
218 bool "IOP32x-based"
a4f7e763 219 depends on MMU
7ae1f7ec 220 select PLAT_IOP
f7e68bbf 221 select PCI
f999b8bd 222 help
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LB
223 Support for Intel's 80219 and IOP32X (XScale) family of
224 processors.
225
226config ARCH_IOP33X
227 bool "IOP33x-based"
228 depends on MMU
7ae1f7ec 229 select PLAT_IOP
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LB
230 select PCI
231 help
232 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 233
285f5fa7
DW
234config ARCH_IOP13XX
235 bool "IOP13xx-based"
236 select PCI
237 help
238 Support for Intel's IOP13XX (XScale) family of processors.
239
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240config ARCH_IXP4XX
241 bool "IXP4xx-based"
a4f7e763 242 depends on MMU
84904d0e 243 select GENERIC_TIME
f999b8bd
MM
244 help
245 Support for Intel's IXP4XX (XScale) family of processors.
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LT
246
247config ARCH_IXP2000
248 bool "IXP2400/2800-based"
a4f7e763 249 depends on MMU
f7e68bbf 250 select PCI
f999b8bd
MM
251 help
252 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 253
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254config ARCH_IXP23XX
255 bool "IXP23XX-based"
a4f7e763 256 depends on MMU
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LB
257 select PCI
258 help
259 Support for Intel's IXP23xx (XScale) family of processors.
260
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261config ARCH_L7200
262 bool "LinkUp-L7200"
263 select FIQ
264 help
265 Say Y here if you intend to run this kernel on a LinkUp Systems
266 L7200 Software Development Board which uses an ARM720T processor.
267 Information on this board can be obtained at:
268
269 <http://www.linkupsys.com/>
270
271 If you have any questions or comments about the Linux kernel port
272 to this board, send e-mail to <sjhill@cotw.com>.
273
4af6fee1
DS
274config ARCH_PNX4008
275 bool "Philips Nexperia PNX4008 Mobile"
276 help
277 This enables support for Philips PNX4008 mobile platform.
278
1da177e4
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279config ARCH_PXA
280 bool "PXA2xx-based"
a4f7e763 281 depends on MMU
034d2f5a 282 select ARCH_MTD_XIP
f999b8bd
MM
283 help
284 Support for Intel's PXA2XX processor line.
1da177e4
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285
286config ARCH_RPC
287 bool "RiscPC"
288 select ARCH_ACORN
289 select FIQ
290 select TIMER_ACORN
a08b6b79 291 select ARCH_MAY_HAVE_PC_FDC
065909b9 292 select ISA_DMA_API
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293 help
294 On the Acorn Risc-PC, Linux can support the internal IDE disk and
295 CD-ROM interface, serial and parallel port, and the floppy drive.
296
297config ARCH_SA1100
298 bool "SA1100-based"
f7e68bbf 299 select ISA
3cd9e19e 300 select ARCH_DISCONTIGMEM_ENABLE
034d2f5a 301 select ARCH_MTD_XIP
f999b8bd
MM
302 help
303 Support for StrongARM 11x0 based boards.
1da177e4
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304
305config ARCH_S3C2410
cd701aa2 306 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442"
1da177e4
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307 help
308 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
309 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 310 the Samsung SMDK2410 development board (and derivatives).
1da177e4
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311
312config ARCH_SHARK
313 bool "Shark"
f7e68bbf
RK
314 select ISA
315 select ISA_DMA
316 select PCI
f999b8bd
MM
317 help
318 Support for the StrongARM based Digital DNARD machine, also known
319 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4
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320
321config ARCH_LH7A40X
322 bool "Sharp LH7A40X"
323 help
324 Say Y here for systems based on one of the Sharp LH7A40X
325 System on a Chip processors. These CPUs include an ARM922T
326 core with a wide array of integrated devices for
327 hand-held and low-power applications.
328
329config ARCH_OMAP
330 bool "TI OMAP"
f999b8bd
MM
331 help
332 Support for TI's OMAP platform (OMAP1 and OMAP2).
1da177e4 333
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334endchoice
335
336source "arch/arm/mach-clps711x/Kconfig"
337
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LB
338source "arch/arm/mach-ep93xx/Kconfig"
339
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340source "arch/arm/mach-footbridge/Kconfig"
341
342source "arch/arm/mach-integrator/Kconfig"
343
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LB
344source "arch/arm/mach-iop32x/Kconfig"
345
346source "arch/arm/mach-iop33x/Kconfig"
1da177e4 347
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DW
348source "arch/arm/mach-iop13xx/Kconfig"
349
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LT
350source "arch/arm/mach-ixp4xx/Kconfig"
351
352source "arch/arm/mach-ixp2000/Kconfig"
353
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LB
354source "arch/arm/mach-ixp23xx/Kconfig"
355
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356source "arch/arm/mach-pxa/Kconfig"
357
358source "arch/arm/mach-sa1100/Kconfig"
359
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TL
360source "arch/arm/plat-omap/Kconfig"
361
362source "arch/arm/mach-omap1/Kconfig"
1da177e4 363
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TL
364source "arch/arm/mach-omap2/Kconfig"
365
a21765a7
BD
366source "arch/arm/plat-s3c24xx/Kconfig"
367
368if ARCH_S3C2410
369source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 370source "arch/arm/mach-s3c2410/Kconfig"
a21765a7
BD
371source "arch/arm/mach-s3c2412/Kconfig"
372source "arch/arm/mach-s3c2440/Kconfig"
373source "arch/arm/mach-s3c2442/Kconfig"
374endif
1da177e4
LT
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
038c5b60
BN
384source "arch/arm/mach-aaec2000/Kconfig"
385
8ad68bbf
CM
386source "arch/arm/mach-realview/Kconfig"
387
73a59c1c
SP
388source "arch/arm/mach-at91rm9200/Kconfig"
389
bb6d8c88
SH
390source "arch/arm/mach-netx/Kconfig"
391
1da177e4
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392# Definitions to make life easier
393config ARCH_ACORN
394 bool
395
7ae1f7ec
LB
396config PLAT_IOP
397 bool
398
1da177e4
LT
399source arch/arm/mm/Kconfig
400
afe4b25e
LB
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
1da177e4
LT
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
3b93e7b0
HC
415if !MMU
416source "arch/arm/Kconfig-nommu"
417endif
418
1da177e4
LT
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
1da177e4
LT
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
065909b9 442# Select ISA DMA controller support
1da177e4
LT
443config ISA_DMA
444 bool
065909b9 445 select ISA_DMA_API
1da177e4 446
065909b9 447# Select ISA DMA interface
5cae841b
AV
448config ISA_DMA_API
449 bool
5cae841b 450
1da177e4 451config PCI
68939121 452 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX
1da177e4
LT
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)"
f6db449c 480 depends on EXPERIMENTAL && REALVIEW_MPCORE
1da177e4
LT
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
12c62c2e
AO
492 See also the <file:Documentation/smp.txt>,
493 <file:Documentation/i386/IO-APIC.txt>,
1da177e4
LT
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
a054a811
RK
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
37ee16ae
RK
512config LOCAL_TIMERS
513 bool "Use local timer interrupts"
2a98beb6 514 depends on SMP && REALVIEW_MPCORE
37ee16ae
RK
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
1da177e4
LT
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
8749af68
RK
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
f2be64b3
TL
550 Please note that dynamic tick may affect the accuracy of
551 timekeeping on some platforms depending on the implementation.
569d2c34
NP
552 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
553 to have accurate timekeeping with dynamic tick.
f2be64b3 554
f8065813
RK
555config HZ
556 int
557 default 128 if ARCH_L7200
558 default 200 if ARCH_EBSA110 || ARCH_S3C2410
bfe65704 559 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
f8065813
RK
560 default 100
561
704bdda0
NP
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
6c90c872 577config OABI_COMPAT
a73a3ff1 578 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 579 depends on AEABI && EXPERIMENTAL
6c90c872
NP
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
3f22ab27 594config ARCH_DISCONTIGMEM_ENABLE
1da177e4 595 bool
f7e68bbf 596 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
1da177e4
LT
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
c80d79d7
YG
603config NODES_SHIFT
604 int
605 default "4" if ARCH_LH7A40X
606 default "2"
607 depends on NEED_MULTIPLE_NODES
608
3f22ab27
DH
609source "mm/Kconfig"
610
1da177e4
LT
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 || \
73a59c1c 617 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
58a0cd78 618 ARCH_AT91 || MACH_TRIZEPS4
1da177e4
LT
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
f12d0d7c 661 depends on CPU_CP15_MMU
1da177e4
LT
662 default y if !ARCH_EBSA110
663 help
84eb8d06 664 ARM processors cannot fetch/store information which is not
1da177e4
LT
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
f8c440b2
DF
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.
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LT
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
3c8cd0cc 751if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX )
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LT
752
753menu "CPU Frequency scaling"
754
755source "drivers/cpufreq/Kconfig"
756
757config CPU_FREQ_SA1100
758 bool
07c6d48f 759 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
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LT
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
3c8cd0cc
PP
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
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LT
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"
8993a44c 797 depends on !AEABI || OABI_COMPAT
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LT
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"
bedf142b 809 depends on FPE_NWFPE
1da177e4
LT
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)"
8993a44c 821 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
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"
704bdda0 853 depends on !AEABI
1da177e4
LT
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
eceab4ac 865source "kernel/power/Kconfig"
1da177e4 866
1da177e4
LT
867config APM
868 tristate "Advanced Power Management Emulation"
1da177e4
LT
869 ---help---
870 APM is a BIOS specification for saving power using several different
871 techniques. This is mostly useful for battery powered laptops with
872 APM compliant BIOSes. If you say Y here, the system time will be
873 reset after a RESUME operation, the /proc/apm device will provide
874 battery status information, and user-space programs will receive
875 notification of APM "events" (e.g. battery status change).
876
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LT
877 In order to use APM, you will need supporting software. For location
878 and more information, read <file:Documentation/pm.txt> and the
879 Battery Powered Linux mini-HOWTO, available from
880 <http://www.tldp.org/docs.html#howto>.
881
882 This driver does not spin down disk drives (see the hdparm(8)
883 manpage ("man 8 hdparm") for that), and it doesn't turn off
884 VESA-compliant "green" monitors.
885
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LT
886 Generally, if you don't have a battery in your machine, there isn't
887 much point in using this driver and you should say N. If you get
888 random kernel OOPSes or reboots that don't seem to be related to
889 anything, try disabling/enabling this option (or disabling/enabling
890 APM in your BIOS).
891
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LT
892endmenu
893
d5950b43
SR
894source "net/Kconfig"
895
1da177e4
LT
896menu "Device Drivers"
897
898source "drivers/base/Kconfig"
899
c35bf4a5
PM
900source "drivers/connector/Kconfig"
901
f12d0d7c 902if ALIGNMENT_TRAP || !CPU_CP15_MMU
1da177e4
LT
903source "drivers/mtd/Kconfig"
904endif
905
906source "drivers/parport/Kconfig"
907
908source "drivers/pnp/Kconfig"
909
910source "drivers/block/Kconfig"
911
912source "drivers/acorn/block/Kconfig"
913
3f7e5815 914if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
bb011b8e 915 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
c4713074
LB
916 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
917 || ARCH_IXP23XX
1da177e4
LT
918source "drivers/ide/Kconfig"
919endif
920
921source "drivers/scsi/Kconfig"
922
eb370f0b
MM
923source "drivers/ata/Kconfig"
924
1da177e4
LT
925source "drivers/md/Kconfig"
926
927source "drivers/message/fusion/Kconfig"
928
929source "drivers/ieee1394/Kconfig"
930
931source "drivers/message/i2o/Kconfig"
932
d5950b43 933source "drivers/net/Kconfig"
1da177e4
LT
934
935source "drivers/isdn/Kconfig"
936
937# input before char - char/joystick depends on it. As does USB.
938
939source "drivers/input/Kconfig"
940
941source "drivers/char/Kconfig"
942
943source "drivers/i2c/Kconfig"
944
8ae12a0d
DB
945source "drivers/spi/Kconfig"
946
04916c0e
AZ
947source "drivers/w1/Kconfig"
948
ad2f931d
JD
949source "drivers/hwmon/Kconfig"
950
1da177e4
LT
951#source "drivers/l3/Kconfig"
952
953source "drivers/misc/Kconfig"
954
a4e137ab
RK
955source "drivers/mfd/Kconfig"
956
c72a1d60
RP
957source "drivers/leds/Kconfig"
958
1da177e4
LT
959source "drivers/media/Kconfig"
960
961source "drivers/video/Kconfig"
962
963source "sound/Kconfig"
964
c2dade51
SH
965source "drivers/hid/Kconfig"
966
1da177e4
LT
967source "drivers/usb/Kconfig"
968
969source "drivers/mmc/Kconfig"
970
12b824fb
AZ
971source "drivers/rtc/Kconfig"
972
1da177e4
LT
973endmenu
974
975source "fs/Kconfig"
976
977source "arch/arm/oprofile/Kconfig"
978
979source "arch/arm/Kconfig.debug"
980
981source "security/Kconfig"
982
983source "crypto/Kconfig"
984
985source "lib/Kconfig"