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[/] [or1k_soc_on_altera_embedded_dev_kit/] [tags/] [linux-2.6/] [linux-2.6.24_or32_unified_v2.3/] [arch/] [arm/] [Kconfig] - Blame information for rev 8

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#
2
# For a description of the syntax of this configuration file,
3
# see Documentation/kbuild/kconfig-language.txt.
4
#
5
 
6
mainmenu "Linux Kernel Configuration"
7
 
8
config 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
          .
20
 
21
config SYS_SUPPORTS_APM_EMULATION
22
        bool
23
 
24
config GENERIC_GPIO
25
        bool
26
        default n
27
 
28
config GENERIC_TIME
29
        bool
30
        default n
31
 
32
config GENERIC_CLOCKEVENTS
33
        bool
34
        default n
35
 
36
config MMU
37
        bool
38
        default y
39
 
40
config NO_IOPORT
41
        bool
42
        default n
43
 
44
config EISA
45
        bool
46
        ---help---
47
          The Extended Industry Standard Architecture (EISA) bus was
48
          developed as an open alternative to the IBM MicroChannel bus.
49
 
50
          The EISA bus provided some of the features of the IBM MicroChannel
51
          bus while maintaining backward compatibility with cards made for
52
          the older ISA bus.  The EISA bus saw limited use between 1988 and
53
          1995 when it was made obsolete by the PCI bus.
54
 
55
          Say Y here if you are building a kernel for an EISA-based machine.
56
 
57
          Otherwise, say N.
58
 
59
config SBUS
60
        bool
61
 
62
config MCA
63
        bool
64
        help
65
          MicroChannel Architecture is found in some IBM PS/2 machines and
66
          laptops.  It is a bus system similar to PCI or ISA. See
67
           (and especially the web page given
68
          there) before attempting to build an MCA bus kernel.
69
 
70
config GENERIC_HARDIRQS
71
        bool
72
        default y
73
 
74
config STACKTRACE_SUPPORT
75
        bool
76
        default y
77
 
78
config LOCKDEP_SUPPORT
79
        bool
80
        default y
81
 
82
config TRACE_IRQFLAGS_SUPPORT
83
        bool
84
        default y
85
 
86
config HARDIRQS_SW_RESEND
87
        bool
88
        default y
89
 
90
config GENERIC_IRQ_PROBE
91
        bool
92
        default y
93
 
94
config RWSEM_GENERIC_SPINLOCK
95
        bool
96
        default y
97
 
98
config RWSEM_XCHGADD_ALGORITHM
99
        bool
100
 
101
config ARCH_HAS_ILOG2_U32
102
        bool
103
        default n
104
 
105
config ARCH_HAS_ILOG2_U64
106
        bool
107
        default n
108
 
109
config GENERIC_HWEIGHT
110
        bool
111
        default y
112
 
113
config GENERIC_CALIBRATE_DELAY
114
        bool
115
        default y
116
 
117
config ARCH_MAY_HAVE_PC_FDC
118
        bool
119
 
120
config ZONE_DMA
121
        bool
122
        default y
123
 
124
config GENERIC_ISA_DMA
125
        bool
126
 
127
config FIQ
128
        bool
129
 
130
config ARCH_MTD_XIP
131
        bool
132
 
133
config VECTORS_BASE
134
        hex
135
        default 0xffff0000 if MMU || CPU_HIGH_VECTOR
136
        default DRAM_BASE if REMAP_VECTORS_TO_RAM
137
        default 0x00000000
138
        help
139
          The base address of exception vectors.
140
 
141
source "init/Kconfig"
142
 
143
menu "System Type"
144
 
145
choice
146
        prompt "ARM system type"
147
        default ARCH_VERSATILE
148
 
149
config ARCH_AAEC2000
150
        bool "Agilent AAEC-2000 based"
151
        select ARM_AMBA
152
        help
153
          This enables support for systems based on the Agilent AAEC-2000
154
 
155
config ARCH_INTEGRATOR
156
        bool "ARM Ltd. Integrator family"
157
        select ARM_AMBA
158
        select ICST525
159
        help
160
          Support for ARM's Integrator platform.
161
 
162
config ARCH_REALVIEW
163
        bool "ARM Ltd. RealView family"
164
        select ARM_AMBA
165
        select ICST307
166
        help
167
          This enables support for ARM Ltd RealView boards.
168
 
169
config ARCH_VERSATILE
170
        bool "ARM Ltd. Versatile family"
171
        select ARM_AMBA
172
        select ARM_VIC
173
        select ICST307
174
        select GENERIC_TIME
175
        select GENERIC_CLOCKEVENTS
176
        help
177
          This enables support for ARM Ltd Versatile board.
178
 
179
config ARCH_AT91
180
        bool "Atmel AT91"
181
        select GENERIC_GPIO
182
        help
183
          This enables support for systems based on the Atmel AT91RM9200
184
          and AT91SAM9xxx processors.
185
 
186
config ARCH_CLPS7500
187
        bool "Cirrus CL-PS7500FE"
188
        select TIMER_ACORN
189
        select ISA
190
        select NO_IOPORT
191
        help
192
          Support for the Cirrus Logic PS7500FE system-on-a-chip.
193
 
194
config ARCH_CLPS711X
195
        bool "Cirrus Logic CLPS711x/EP721x-based"
196
        help
197
          Support for Cirrus Logic 711x/721x based boards.
198
 
199
config ARCH_CO285
200
        bool "Co-EBSA285"
201
        select FOOTBRIDGE
202
        select FOOTBRIDGE_ADDIN
203
        help
204
          Support for Intel's EBSA285 companion chip.
205
 
206
config ARCH_EBSA110
207
        bool "EBSA-110"
208
        select ISA
209
        select NO_IOPORT
210
        help
211
          This is an evaluation board for the StrongARM processor available
212
          from Digital. It has limited hardware on-board, including an
213
          Ethernet interface, two PCMCIA sockets, two serial ports and a
214
          parallel port.
215
 
216
config ARCH_EP93XX
217
        bool "EP93xx-based"
218
        select ARM_AMBA
219
        select ARM_VIC
220
        help
221
          This enables support for the Cirrus EP93xx series of CPUs.
222
 
223
config ARCH_FOOTBRIDGE
224
        bool "FootBridge"
225
        select FOOTBRIDGE
226
        help
227
          Support for systems based on the DC21285 companion chip
228
          ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
229
 
230
config ARCH_NETX
231
        bool "Hilscher NetX based"
232
        select ARM_VIC
233
        help
234
          This enables support for systems based on the Hilscher NetX Soc
235
 
236
config ARCH_H720X
237
        bool "Hynix HMS720x-based"
238
        select ISA_DMA_API
239
        help
240
          This enables support for systems based on the Hynix HMS720x
241
 
242
config ARCH_IMX
243
        bool "IMX"
244
        select GENERIC_GPIO
245
        select GENERIC_TIME
246
        select GENERIC_CLOCKEVENTS
247
        help
248
          Support for Motorola's i.MX family of processors (MX1, MXL).
249
 
250
config ARCH_IOP13XX
251
        bool "IOP13xx-based"
252
        depends on MMU
253
        select PLAT_IOP
254
        select PCI
255
        select ARCH_SUPPORTS_MSI
256
        help
257
          Support for Intel's IOP13XX (XScale) family of processors.
258
 
259
config ARCH_IOP32X
260
        bool "IOP32x-based"
261
        depends on MMU
262
        select PLAT_IOP
263
        select PCI
264
        help
265
          Support for Intel's 80219 and IOP32X (XScale) family of
266
          processors.
267
 
268
config ARCH_IOP33X
269
        bool "IOP33x-based"
270
        depends on MMU
271
        select PLAT_IOP
272
        select PCI
273
        help
274
          Support for Intel's IOP33X (XScale) family of processors.
275
 
276
config ARCH_IXP23XX
277
        bool "IXP23XX-based"
278
        depends on MMU
279
        select PCI
280
        help
281
          Support for Intel's IXP23xx (XScale) family of processors.
282
 
283
config ARCH_IXP2000
284
        bool "IXP2400/2800-based"
285
        depends on MMU
286
        select PCI
287
        help
288
          Support for Intel's IXP2400/2800 (XScale) family of processors.
289
 
290
config ARCH_IXP4XX
291
        bool "IXP4xx-based"
292
        depends on MMU
293
        select GENERIC_GPIO
294
        select GENERIC_TIME
295
        select GENERIC_CLOCKEVENTS
296
        help
297
          Support for Intel's IXP4XX (XScale) family of processors.
298
 
299
config ARCH_L7200
300
        bool "LinkUp-L7200"
301
        select FIQ
302
        help
303
          Say Y here if you intend to run this kernel on a LinkUp Systems
304
          L7200 Software Development Board which uses an ARM720T processor.
305
          Information on this board can be obtained at:
306
 
307
          
308
 
309
          If you have any questions or comments about the Linux kernel port
310
          to this board, send e-mail to .
311
 
312
config ARCH_KS8695
313
        bool "Micrel/Kendin KS8695"
314
        select GENERIC_GPIO
315
        help
316
          Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
317
          System-on-Chip devices.
318
 
319
config ARCH_NS9XXX
320
        bool "NetSilicon NS9xxx"
321
        select GENERIC_GPIO
322
        select GENERIC_TIME
323
        select GENERIC_CLOCKEVENTS
324
        help
325
          Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
326
          System.
327
 
328
          
329
 
330
config ARCH_MXC
331
        bool "Freescale MXC/iMX-based"
332
        select ARCH_MTD_XIP
333
        help
334
          Support for Freescale MXC/iMX-based family of processors
335
 
336
config ARCH_PNX4008
337
        bool "Philips Nexperia PNX4008 Mobile"
338
        help
339
          This enables support for Philips PNX4008 mobile platform.
340
 
341
config ARCH_PXA
342
        bool "PXA2xx/PXA3xx-based"
343
        depends on MMU
344
        select ARCH_MTD_XIP
345
        select GENERIC_GPIO
346
        select GENERIC_TIME
347
        select GENERIC_CLOCKEVENTS
348
        help
349
          Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
350
 
351
config ARCH_RPC
352
        bool "RiscPC"
353
        select ARCH_ACORN
354
        select FIQ
355
        select TIMER_ACORN
356
        select ARCH_MAY_HAVE_PC_FDC
357
        select ISA_DMA_API
358
        select NO_IOPORT
359
        help
360
          On the Acorn Risc-PC, Linux can support the internal IDE disk and
361
          CD-ROM interface, serial and parallel port, and the floppy drive.
362
 
363
config ARCH_SA1100
364
        bool "SA1100-based"
365
        select ISA
366
        select ARCH_DISCONTIGMEM_ENABLE
367
        select ARCH_MTD_XIP
368
        select GENERIC_GPIO
369
        help
370
          Support for StrongARM 11x0 based boards.
371
 
372
config ARCH_S3C2410
373
        bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
374
        select GENERIC_GPIO
375
        help
376
          Samsung S3C2410X CPU based systems, such as the Simtec Electronics
377
          BAST (), the IPAQ 1940 or
378
          the Samsung SMDK2410 development board (and derivatives).
379
 
380
config ARCH_SHARK
381
        bool "Shark"
382
        select ISA
383
        select ISA_DMA
384
        select PCI
385
        help
386
          Support for the StrongARM based Digital DNARD machine, also known
387
          as "Shark" ().
388
 
389
config ARCH_LH7A40X
390
        bool "Sharp LH7A40X"
391
        help
392
          Say Y here for systems based on one of the Sharp LH7A40X
393
          System on a Chip processors.  These CPUs include an ARM922T
394
          core with a wide array of integrated devices for
395
          hand-held and low-power applications.
396
 
397
config ARCH_DAVINCI
398
        bool "TI DaVinci"
399
        select GENERIC_TIME
400
        select GENERIC_CLOCKEVENTS
401
        select GENERIC_GPIO
402
        help
403
          Support for TI's DaVinci platform.
404
 
405
config ARCH_OMAP
406
        bool "TI OMAP"
407
        select GENERIC_GPIO
408
        select GENERIC_TIME
409
        help
410
          Support for TI's OMAP platform (OMAP1 and OMAP2).
411
 
412
endchoice
413
 
414
source "arch/arm/mach-clps711x/Kconfig"
415
 
416
source "arch/arm/mach-ep93xx/Kconfig"
417
 
418
source "arch/arm/mach-footbridge/Kconfig"
419
 
420
source "arch/arm/mach-integrator/Kconfig"
421
 
422
source "arch/arm/mach-iop32x/Kconfig"
423
 
424
source "arch/arm/mach-iop33x/Kconfig"
425
 
426
source "arch/arm/mach-iop13xx/Kconfig"
427
 
428
source "arch/arm/mach-ixp4xx/Kconfig"
429
 
430
source "arch/arm/mach-ixp2000/Kconfig"
431
 
432
source "arch/arm/mach-ixp23xx/Kconfig"
433
 
434
source "arch/arm/mach-pxa/Kconfig"
435
 
436
source "arch/arm/mach-sa1100/Kconfig"
437
 
438
source "arch/arm/plat-omap/Kconfig"
439
 
440
source "arch/arm/mach-omap1/Kconfig"
441
 
442
source "arch/arm/mach-omap2/Kconfig"
443
 
444
source "arch/arm/plat-s3c24xx/Kconfig"
445
source "arch/arm/plat-s3c/Kconfig"
446
 
447
if ARCH_S3C2410
448
source "arch/arm/mach-s3c2400/Kconfig"
449
source "arch/arm/mach-s3c2410/Kconfig"
450
source "arch/arm/mach-s3c2412/Kconfig"
451
source "arch/arm/mach-s3c2440/Kconfig"
452
source "arch/arm/mach-s3c2442/Kconfig"
453
source "arch/arm/mach-s3c2443/Kconfig"
454
endif
455
 
456
source "arch/arm/mach-lh7a40x/Kconfig"
457
 
458
source "arch/arm/mach-imx/Kconfig"
459
 
460
source "arch/arm/mach-h720x/Kconfig"
461
 
462
source "arch/arm/mach-versatile/Kconfig"
463
 
464
source "arch/arm/mach-aaec2000/Kconfig"
465
 
466
source "arch/arm/mach-realview/Kconfig"
467
 
468
source "arch/arm/mach-at91/Kconfig"
469
 
470
source "arch/arm/plat-mxc/Kconfig"
471
 
472
source "arch/arm/mach-netx/Kconfig"
473
 
474
source "arch/arm/mach-ns9xxx/Kconfig"
475
 
476
source "arch/arm/mach-davinci/Kconfig"
477
 
478
source "arch/arm/mach-ks8695/Kconfig"
479
 
480
# Definitions to make life easier
481
config ARCH_ACORN
482
        bool
483
 
484
config PLAT_IOP
485
        bool
486
 
487
source arch/arm/mm/Kconfig
488
 
489
config IWMMXT
490
        bool "Enable iWMMXt support"
491
        depends on CPU_XSCALE || CPU_XSC3
492
        default y if PXA27x || PXA3xx
493
        help
494
          Enable support for iWMMXt context switching at run time if
495
          running on a CPU that supports it.
496
 
497
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
498
config XSCALE_PMU
499
        bool
500
        depends on CPU_XSCALE && !XSCALE_PMU_TIMER
501
        default y
502
 
503
if !MMU
504
source "arch/arm/Kconfig-nommu"
505
endif
506
 
507
endmenu
508
 
509
source "arch/arm/common/Kconfig"
510
 
511
config FORCE_MAX_ZONEORDER
512
        int
513
        depends on SA1111
514
        default "9"
515
 
516
menu "Bus support"
517
 
518
config ARM_AMBA
519
        bool
520
 
521
config ISA
522
        bool
523
        help
524
          Find out whether you have ISA slots on your motherboard.  ISA is the
525
          name of a bus system, i.e. the way the CPU talks to the other stuff
526
          inside your box.  Other bus systems are PCI, EISA, MicroChannel
527
          (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
528
          newer boards don't support it.  If you have ISA, say Y, otherwise N.
529
 
530
# Select ISA DMA controller support
531
config ISA_DMA
532
        bool
533
        select ISA_DMA_API
534
 
535
# Select ISA DMA interface
536
config ISA_DMA_API
537
        bool
538
 
539
config PCI
540
        bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
541
        help
542
          Find out whether you have a PCI motherboard. PCI is the name of a
543
          bus system, i.e. the way the CPU talks to the other stuff inside
544
          your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
545
          VESA. If you have PCI, say Y, otherwise N.
546
 
547
          The PCI-HOWTO, available from
548
          , contains valuable
549
          information about which PCI hardware does work under Linux and which
550
          doesn't.
551
 
552
config PCI_SYSCALL
553
        def_bool PCI
554
 
555
# Select the host bridge type
556
config PCI_HOST_VIA82C505
557
        bool
558
        depends on PCI && ARCH_SHARK
559
        default y
560
 
561
config PCI_HOST_ITE8152
562
        bool
563
        depends on PCI && MACH_ARMCORE
564
        default y
565
        select DMABOUNCE
566
 
567
source "drivers/pci/Kconfig"
568
 
569
source "drivers/pcmcia/Kconfig"
570
 
571
endmenu
572
 
573
menu "Kernel Features"
574
 
575
source "kernel/time/Kconfig"
576
 
577
config SMP
578
        bool "Symmetric Multi-Processing (EXPERIMENTAL)"
579
        depends on EXPERIMENTAL && REALVIEW_MPCORE
580
        help
581
          This enables support for systems with more than one CPU. If you have
582
          a system with only one CPU, like most personal computers, say N. If
583
          you have a system with more than one CPU, say Y.
584
 
585
          If you say N here, the kernel will run on single and multiprocessor
586
          machines, but will use only one CPU of a multiprocessor machine. If
587
          you say Y here, the kernel will run on many, but not all, single
588
          processor machines. On a single processor machine, the kernel will
589
          run faster if you say N here.
590
 
591
          See also the ,
592
          ,
593
           and the SMP-HOWTO available at
594
          .
595
 
596
          If you don't know what to do here, say N.
597
 
598
config NR_CPUS
599
        int "Maximum number of CPUs (2-32)"
600
        range 2 32
601
        depends on SMP
602
        default "4"
603
 
604
config HOTPLUG_CPU
605
        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
606
        depends on SMP && HOTPLUG && EXPERIMENTAL
607
        help
608
          Say Y here to experiment with turning CPUs off and on.  CPUs
609
          can be controlled through /sys/devices/system/cpu.
610
 
611
config LOCAL_TIMERS
612
        bool "Use local timer interrupts"
613
        depends on SMP && REALVIEW_MPCORE
614
        default y
615
        help
616
          Enable support for local timers on SMP platforms, rather then the
617
          legacy IPI broadcast method.  Local timers allows the system
618
          accounting to be spread across the timer interval, preventing a
619
          "thundering herd" at every timer tick.
620
 
621
config PREEMPT
622
        bool "Preemptible Kernel (EXPERIMENTAL)"
623
        depends on EXPERIMENTAL
624
        help
625
          This option reduces the latency of the kernel when reacting to
626
          real-time or interactive events by allowing a low priority process to
627
          be preempted even if it is in kernel mode executing a system call.
628
          This allows applications to run more reliably even when the system is
629
          under load.
630
 
631
          Say Y here if you are building a kernel for a desktop, embedded
632
          or real-time system.  Say N if you are unsure.
633
 
634
config NO_IDLE_HZ
635
        bool "Dynamic tick timer"
636
        depends on !GENERIC_CLOCKEVENTS
637
        help
638
          Select this option if you want to disable continuous timer ticks
639
          and have them programmed to occur as required. This option saves
640
          power as the system can remain in idle state for longer.
641
 
642
          By default dynamic tick is disabled during the boot, and can be
643
          manually enabled with:
644
 
645
            echo 1 > /sys/devices/system/timer/timer0/dyn_tick
646
 
647
          Alternatively, if you want dynamic tick automatically enabled
648
          during boot, pass "dyntick=enable" via the kernel command string.
649
 
650
          Please note that dynamic tick may affect the accuracy of
651
          timekeeping on some platforms depending on the implementation.
652
          Currently at least OMAP, PXA2xx and SA11x0 platforms are known
653
          to have accurate timekeeping with dynamic tick.
654
 
655
config HZ
656
        int
657
        default 128 if ARCH_L7200
658
        default 200 if ARCH_EBSA110 || ARCH_S3C2410
659
        default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
660
        default 100
661
 
662
config AEABI
663
        bool "Use the ARM EABI to compile the kernel"
664
        help
665
          This option allows for the kernel to be compiled using the latest
666
          ARM ABI (aka EABI).  This is only useful if you are using a user
667
          space environment that is also compiled with EABI.
668
 
669
          Since there are major incompatibilities between the legacy ABI and
670
          EABI, especially with regard to structure member alignment, this
671
          option also changes the kernel syscall calling convention to
672
          disambiguate both ABIs and allow for backward compatibility support
673
          (selected with CONFIG_OABI_COMPAT).
674
 
675
          To use this you need GCC version 4.0.0 or later.
676
 
677
config OABI_COMPAT
678
        bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
679
        depends on AEABI && EXPERIMENTAL
680
        default y
681
        help
682
          This option preserves the old syscall interface along with the
683
          new (ARM EABI) one. It also provides a compatibility layer to
684
          intercept syscalls that have structure arguments which layout
685
          in memory differs between the legacy ABI and the new ARM EABI
686
          (only for non "thumb" binaries). This option adds a tiny
687
          overhead to all syscalls and produces a slightly larger kernel.
688
          If you know you'll be using only pure EABI user space then you
689
          can say N here. If this option is not selected and you attempt
690
          to execute a legacy ABI binary then the result will be
691
          UNPREDICTABLE (in fact it can be predicted that it won't work
692
          at all). If in doubt say Y.
693
 
694
config ARCH_DISCONTIGMEM_ENABLE
695
        bool
696
        default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
697
        help
698
          Say Y to support efficient handling of discontiguous physical memory,
699
          for architectures which are either NUMA (Non-Uniform Memory Access)
700
          or have huge holes in the physical address space for other reasons.
701
          See  for more.
702
 
703
config NODES_SHIFT
704
        int
705
        default "4" if ARCH_LH7A40X
706
        default "2"
707
        depends on NEED_MULTIPLE_NODES
708
 
709
source "mm/Kconfig"
710
 
711
config LEDS
712
        bool "Timer and CPU usage LEDs"
713
        depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
714
                   ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
715
                   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
716
                   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
717
                   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
718
                   ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
719
                   ARCH_KS8695
720
        help
721
          If you say Y here, the LEDs on your machine will be used
722
          to provide useful information about your current system status.
723
 
724
          If you are compiling a kernel for a NetWinder or EBSA-285, you will
725
          be able to select which LEDs are active using the options below. If
726
          you are compiling a kernel for the EBSA-110 or the LART however, the
727
          red LED will simply flash regularly to indicate that the system is
728
          still functional. It is safe to say Y here if you have a CATS
729
          system, but the driver will do nothing.
730
 
731
config LEDS_TIMER
732
        bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
733
                            OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
734
                            || MACH_OMAP_PERSEUS2
735
        depends on LEDS
736
        depends on !GENERIC_CLOCKEVENTS
737
        default y if ARCH_EBSA110
738
        help
739
          If you say Y here, one of the system LEDs (the green one on the
740
          NetWinder, the amber one on the EBSA285, or the red one on the LART)
741
          will flash regularly to indicate that the system is still
742
          operational. This is mainly useful to kernel hackers who are
743
          debugging unstable kernels.
744
 
745
          The LART uses the same LED for both Timer LED and CPU usage LED
746
          functions. You may choose to use both, but the Timer LED function
747
          will overrule the CPU usage LED.
748
 
749
config LEDS_CPU
750
        bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
751
                        !ARCH_OMAP) \
752
                        || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
753
                        || MACH_OMAP_PERSEUS2
754
        depends on LEDS
755
        help
756
          If you say Y here, the red LED will be used to give a good real
757
          time indication of CPU usage, by lighting whenever the idle task
758
          is not currently executing.
759
 
760
          The LART uses the same LED for both Timer LED and CPU usage LED
761
          functions. You may choose to use both, but the Timer LED function
762
          will overrule the CPU usage LED.
763
 
764
config ALIGNMENT_TRAP
765
        bool
766
        depends on CPU_CP15_MMU
767
        default y if !ARCH_EBSA110
768
        help
769
          ARM processors cannot fetch/store information which is not
770
          naturally aligned on the bus, i.e., a 4 byte fetch must start at an
771
          address divisible by 4. On 32-bit ARM processors, these non-aligned
772
          fetch/store instructions will be emulated in software if you say
773
          here, which has a severe performance impact. This is necessary for
774
          correct operation of some network protocols. With an IP-only
775
          configuration it is safe to say N, otherwise say Y.
776
 
777
endmenu
778
 
779
menu "Boot options"
780
 
781
# Compressed boot loader in ROM.  Yes, we really want to ask about
782
# TEXT and BSS so we preserve their values in the config files.
783
config ZBOOT_ROM_TEXT
784
        hex "Compressed ROM boot loader base address"
785
        default "0"
786
        help
787
          The physical address at which the ROM-able zImage is to be
788
          placed in the target.  Platforms which normally make use of
789
          ROM-able zImage formats normally set this to a suitable
790
          value in their defconfig file.
791
 
792
          If ZBOOT_ROM is not enabled, this has no effect.
793
 
794
config ZBOOT_ROM_BSS
795
        hex "Compressed ROM boot loader BSS address"
796
        default "0"
797
        help
798
          The base address of an area of read/write memory in the target
799
          for the ROM-able zImage which must be available while the
800
          decompressor is running. It must be large enough to hold the
801
          entire decompressed kernel plus an additional 128 KiB.
802
          Platforms which normally make use of ROM-able zImage formats
803
          normally set this to a suitable value in their defconfig file.
804
 
805
          If ZBOOT_ROM is not enabled, this has no effect.
806
 
807
config ZBOOT_ROM
808
        bool "Compressed boot loader in ROM/flash"
809
        depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
810
        help
811
          Say Y here if you intend to execute your compressed kernel image
812
          (zImage) directly from ROM or flash.  If unsure, say N.
813
 
814
config CMDLINE
815
        string "Default kernel command string"
816
        default ""
817
        help
818
          On some architectures (EBSA110 and CATS), there is currently no way
819
          for the boot loader to pass arguments to the kernel. For these
820
          architectures, you should supply some command-line options at build
821
          time by entering them here. As a minimum, you should specify the
822
          memory size and the root device (e.g., mem=64M root=/dev/nfs).
823
 
824
config XIP_KERNEL
825
        bool "Kernel Execute-In-Place from ROM"
826
        depends on !ZBOOT_ROM
827
        help
828
          Execute-In-Place allows the kernel to run from non-volatile storage
829
          directly addressable by the CPU, such as NOR flash. This saves RAM
830
          space since the text section of the kernel is not loaded from flash
831
          to RAM.  Read-write sections, such as the data section and stack,
832
          are still copied to RAM.  The XIP kernel is not compressed since
833
          it has to run directly from flash, so it will take more space to
834
          store it.  The flash address used to link the kernel object files,
835
          and for storing it, is configuration dependent. Therefore, if you
836
          say Y here, you must know the proper physical address where to
837
          store the kernel image depending on your own flash memory usage.
838
 
839
          Also note that the make target becomes "make xipImage" rather than
840
          "make zImage" or "make Image".  The final kernel binary to put in
841
          ROM memory will be arch/arm/boot/xipImage.
842
 
843
          If unsure, say N.
844
 
845
config XIP_PHYS_ADDR
846
        hex "XIP Kernel Physical Location"
847
        depends on XIP_KERNEL
848
        default "0x00080000"
849
        help
850
          This is the physical address in your flash memory the kernel will
851
          be linked for and stored to.  This address is dependent on your
852
          own flash usage.
853
 
854
config KEXEC
855
        bool "Kexec system call (EXPERIMENTAL)"
856
        depends on EXPERIMENTAL
857
        help
858
          kexec is a system call that implements the ability to shutdown your
859
          current kernel, and to start another kernel.  It is like a reboot
860
          but it is independent of the system firmware.   And like a reboot
861
          you can start any kernel with it, not just Linux.
862
 
863
          It is an ongoing process to be certain the hardware in a machine
864
          is properly shutdown, so do not be surprised if this code does not
865
          initially work for you.  It may help to enable device hotplugging
866
          support.
867
 
868
endmenu
869
 
870
if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX )
871
 
872
menu "CPU Frequency scaling"
873
 
874
source "drivers/cpufreq/Kconfig"
875
 
876
config CPU_FREQ_SA1100
877
        bool
878
        depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
879
        default y
880
 
881
config CPU_FREQ_SA1110
882
        bool
883
        depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
884
        default y
885
 
886
config CPU_FREQ_INTEGRATOR
887
        tristate "CPUfreq driver for ARM Integrator CPUs"
888
        depends on ARCH_INTEGRATOR && CPU_FREQ
889
        default y
890
        help
891
          This enables the CPUfreq driver for ARM Integrator CPUs.
892
 
893
          For details, take a look at .
894
 
895
          If in doubt, say Y.
896
 
897
config CPU_FREQ_IMX
898
        tristate "CPUfreq driver for i.MX CPUs"
899
        depends on ARCH_IMX && CPU_FREQ
900
        default n
901
        help
902
          This enables the CPUfreq driver for i.MX CPUs.
903
 
904
          If in doubt, say N.
905
 
906
endmenu
907
 
908
endif
909
 
910
menu "Floating point emulation"
911
 
912
comment "At least one emulation must be selected"
913
 
914
config FPE_NWFPE
915
        bool "NWFPE math emulation"
916
        depends on !AEABI || OABI_COMPAT
917
        ---help---
918
          Say Y to include the NWFPE floating point emulator in the kernel.
919
          This is necessary to run most binaries. Linux does not currently
920
          support floating point hardware so you need to say Y here even if
921
          your machine has an FPA or floating point co-processor podule.
922
 
923
          You may say N here if you are going to load the Acorn FPEmulator
924
          early in the bootup.
925
 
926
config FPE_NWFPE_XP
927
        bool "Support extended precision"
928
        depends on FPE_NWFPE
929
        help
930
          Say Y to include 80-bit support in the kernel floating-point
931
          emulator.  Otherwise, only 32 and 64-bit support is compiled in.
932
          Note that gcc does not generate 80-bit operations by default,
933
          so in most cases this option only enlarges the size of the
934
          floating point emulator without any good reason.
935
 
936
          You almost surely want to say N here.
937
 
938
config FPE_FASTFPE
939
        bool "FastFPE math emulation (EXPERIMENTAL)"
940
        depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
941
        ---help---
942
          Say Y here to include the FAST floating point emulator in the kernel.
943
          This is an experimental much faster emulator which now also has full
944
          precision for the mantissa.  It does not support any exceptions.
945
          It is very simple, and approximately 3-6 times faster than NWFPE.
946
 
947
          It should be sufficient for most programs.  It may be not suitable
948
          for scientific calculations, but you have to check this for yourself.
949
          If you do not feel you need a faster FP emulation you should better
950
          choose NWFPE.
951
 
952
config VFP
953
        bool "VFP-format floating point maths"
954
        depends on CPU_V6 || CPU_ARM926T
955
        help
956
          Say Y to include VFP support code in the kernel. This is needed
957
          if your hardware includes a VFP unit.
958
 
959
          Please see  for
960
          release notes and additional status information.
961
 
962
          Say N if your target does not have VFP hardware.
963
 
964
endmenu
965
 
966
menu "Userspace binary formats"
967
 
968
source "fs/Kconfig.binfmt"
969
 
970
config ARTHUR
971
        tristate "RISC OS personality"
972
        depends on !AEABI
973
        help
974
          Say Y here to include the kernel code necessary if you want to run
975
          Acorn RISC OS/Arthur binaries under Linux. This code is still very
976
          experimental; if this sounds frightening, say N and sleep in peace.
977
          You can also say M here to compile this support as a module (which
978
          will be called arthur).
979
 
980
endmenu
981
 
982
menu "Power management options"
983
 
984
source "kernel/power/Kconfig"
985
 
986
endmenu
987
 
988
source "net/Kconfig"
989
 
990
menu "Device Drivers"
991
 
992
source "drivers/base/Kconfig"
993
 
994
source "drivers/connector/Kconfig"
995
 
996
if ALIGNMENT_TRAP || !CPU_CP15_MMU
997
source "drivers/mtd/Kconfig"
998
endif
999
 
1000
source "drivers/parport/Kconfig"
1001
 
1002
source "drivers/pnp/Kconfig"
1003
 
1004
source "drivers/block/Kconfig"
1005
 
1006
# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1007
 
1008
source "drivers/misc/Kconfig"
1009
 
1010
if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
1011
        || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
1012
        || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
1013
        || ARCH_IXP23XX
1014
source "drivers/ide/Kconfig"
1015
endif
1016
 
1017
source "drivers/scsi/Kconfig"
1018
 
1019
source "drivers/ata/Kconfig"
1020
 
1021
source "drivers/md/Kconfig"
1022
 
1023
source "drivers/message/fusion/Kconfig"
1024
 
1025
source "drivers/ieee1394/Kconfig"
1026
 
1027
source "drivers/message/i2o/Kconfig"
1028
 
1029
source "drivers/net/Kconfig"
1030
 
1031
source "drivers/isdn/Kconfig"
1032
 
1033
# input before char - char/joystick depends on it. As does USB.
1034
 
1035
source "drivers/input/Kconfig"
1036
 
1037
source "drivers/char/Kconfig"
1038
 
1039
source "drivers/i2c/Kconfig"
1040
 
1041
source "drivers/spi/Kconfig"
1042
 
1043
source "drivers/w1/Kconfig"
1044
 
1045
source "drivers/power/Kconfig"
1046
 
1047
source "drivers/hwmon/Kconfig"
1048
 
1049
source "drivers/watchdog/Kconfig"
1050
 
1051
source "drivers/ssb/Kconfig"
1052
 
1053
#source "drivers/l3/Kconfig"
1054
 
1055
source "drivers/mfd/Kconfig"
1056
 
1057
source "drivers/media/Kconfig"
1058
 
1059
source "drivers/video/Kconfig"
1060
 
1061
source "sound/Kconfig"
1062
 
1063
source "drivers/hid/Kconfig"
1064
 
1065
source "drivers/usb/Kconfig"
1066
 
1067
source "drivers/mmc/Kconfig"
1068
 
1069
source "drivers/leds/Kconfig"
1070
 
1071
source "drivers/rtc/Kconfig"
1072
 
1073
source "drivers/dma/Kconfig"
1074
 
1075
source "drivers/dca/Kconfig"
1076
 
1077
endmenu
1078
 
1079
source "fs/Kconfig"
1080
 
1081
source "arch/arm/Kconfig.instrumentation"
1082
 
1083
source "arch/arm/Kconfig.debug"
1084
 
1085
source "security/Kconfig"
1086
 
1087
source "crypto/Kconfig"
1088
 
1089
source "lib/Kconfig"

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