aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/Kconfig
blob: 15d43c393353aab14cf9c39bf649268cdace17fb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux Kernel Configuration"

config ARM
	bool
	default y
	select HAVE_AOUT
	select HAVE_IDE
	select RTC_LIB
	select SYS_SUPPORTS_APM_EMULATION
	select GENERIC_ATOMIC64 if (!CPU_32v6K)
	select HAVE_OPROFILE
	select HAVE_ARCH_KGDB
	select HAVE_KPROBES if (!XIP_KERNEL)
	select HAVE_KRETPROBES if (HAVE_KPROBES)
	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
	select HAVE_GENERIC_DMA_COHERENT
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_LZO
	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
	  licensed by ARM Ltd and targeted at embedded applications and
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
	  manufactured, but legacy ARM-based PC hardware remains popular in
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

config HAVE_PWM
	bool

config SYS_SUPPORTS_APM_EMULATION
	bool

config GENERIC_GPIO
	bool

config GENERIC_TIME
	bool

config GENERIC_CLOCKEVENTS
	bool

config GENERIC_CLOCKEVENTS_BROADCAST
	bool
	depends on GENERIC_CLOCKEVENTS
	default y if SMP && !LOCAL_TIMERS

config HAVE_TCM
	bool
	select GENERIC_ALLOCATOR

config HAVE_PROC_CPU
	bool

config NO_IOPORT
	bool

config EISA
	bool
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

config SBUS
	bool

config MCA
	bool
	help
	  MicroChannel Architecture is found in some IBM PS/2 machines and
	  laptops.  It is a bus system similar to PCI or ISA. See
	  <file:Documentation/mca.txt> (and especially the web page given
	  there) before attempting to build an MCA bus kernel.

config GENERIC_HARDIRQS
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

config LOCKDEP_SUPPORT
	bool
	default y

config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

config ARCH_HAS_ILOG2_U32
	bool

config ARCH_HAS_ILOG2_U64
	bool

config ARCH_HAS_CPUFREQ
	bool
	help
	  Internal node to signify that the ARCH has CPUFREQ support
	  and that the relevant menu configurations are displayed for
	  it.

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config ARCH_MAY_HAVE_PC_FDC
	bool

config ZONE_DMA
	bool

config NEED_DMA_MAP_STATE
       def_bool y

config GENERIC_ISA_DMA
	bool

config FIQ
	bool

config ARCH_MTD_XIP
	bool

config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

config ARM_L1_CACHE_SHIFT_6
	bool
	help
	  Setting ARM L1 cache line size to 64 Bytes.

if OPROFILE

config OPROFILE_ARMV6
	def_bool y
	depends on CPU_V6 && !SMP
	select OPROFILE_ARM11_CORE

config OPROFILE_MPCORE
	def_bool y
	depends on CPU_V6 && SMP
	select OPROFILE_ARM11_CORE

config OPROFILE_ARM11_CORE
	bool

config OPROFILE_ARMV7
	def_bool y
	depends on CPU_V7 && !SMP
	bool

endif

config VECTORS_BASE
	hex
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

source "init/Kconfig"

source "kernel/Kconfig.freezer"

menu "System Type"

config MMU
	bool "MMU-based Paged Memory Management Support"
	default y
	help
	  Select if you want MMU-based virtualised addressing space
	  support by paged memory management. If unsure, say 'Y'.

choice
	prompt "ARM system type"
	default ARCH_VERSATILE

config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
	select CPU_ARM920T
	select ARM_AMBA
	select HAVE_CLK
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
	select ARCH_HAS_CPUFREQ
	select HAVE_CLK
	select COMMON_CLKDEV
	select ICST525
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
	select HAVE_CLK
	select COMMON_CLKDEV
	select ICST307
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_WANT_OPTIONAL_GPIOLIB
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
	select HAVE_CLK
	select COMMON_CLKDEV
	select ICST307
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_WANT_OPTIONAL_GPIOLIB
	help
	  This enables support for ARM Ltd Versatile board.

config ARCH_AT91
	bool "Atmel AT91"
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select HAVE_CLK
	help
	  This enables support for systems based on the Atmel AT91RM9200,
	  AT91SAM9 and AT91CAP9 processors.

config ARCH_CLPS711X
	bool "Cirrus Logic CLPS711x/EP721x-based"
	select CPU_ARM720T
	help
	  Support for Cirrus Logic 711x/721x based boards.

config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for the Cortina Systems Gemini family SoCs

config ARCH_EBSA110
	bool "EBSA-110"
	select CPU_SA110
	select ISA
	select NO_IOPORT
	help
	  This is an evaluation board for the StrongARM processor available
	  from Digital. It has limited hardware on-board, including an
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

config ARCH_EP93XX
	bool "EP93xx-based"
	select CPU_ARM920T
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_GPIO
	select HAVE_CLK
	select COMMON_CLKDEV
	select ARCH_REQUIRE_GPIOLIB
	select ARCH_HAS_HOLES_MEMORYMODEL
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

config ARCH_FOOTBRIDGE
	bool "FootBridge"
	select CPU_SA110
	select FOOTBRIDGE
	help
	  Support for systems based on the DC21285 companion chip
	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.

config ARCH_MXC
	bool "Freescale MXC/iMX-based"
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_MTD_XIP
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select HAVE_CLK
	help
	  Support for Freescale MXC/iMX-based family of processors

config ARCH_STMP3XXX
	bool "Freescale STMP3xxx"
	select CPU_ARM926T
	select HAVE_CLK
	select COMMON_CLKDEV
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select USB_ARCH_HAS_EHCI
	help
	  Support for systems based on the Freescale 3xxx CPUs.

config ARCH_NETX
	bool "Hilscher NetX based"
	select CPU_ARM926T
	select ARM_VIC
	select GENERIC_CLOCKEVENTS
	select GENERIC_TIME
	help
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
	select CPU_ARM720T
	select ISA_DMA_API
	help
	  This enables support for systems based on the Hynix HMS720x

config ARCH_NOMADIK
	bool "STMicroelectronics Nomadik"
	select ARM_AMBA
	select ARM_VIC
	select CPU_ARM926T
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for the Nomadik platform by ST-Ericsson

config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
	select CPU_XSC3
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
	select VMSPLIT_1G
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

config ARCH_IOP32X
	bool "IOP32x-based"
	depends on MMU
	select CPU_XSCALE
	select PLAT_IOP
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
	select CPU_XSCALE
	select PLAT_IOP
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for Intel's IOP33X (XScale) family of processors.

config ARCH_IXP23XX
 	bool "IXP23XX-based"
	depends on MMU
	select CPU_XSC3
 	select PCI
	help
	  Support for Intel's IXP23xx (XScale) family of processors.

config ARCH_IXP2000
	bool "IXP2400/2800-based"
	depends on MMU
	select CPU_XSCALE
	select PCI
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.

config ARCH_IXP4XX
	bool "IXP4xx-based"
	depends on MMU
	select CPU_XSCALE
	select GENERIC_GPIO
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select DMABOUNCE if PCI
	help
	  Support for Intel's IXP4XX (XScale) family of processors.

config ARCH_L7200
	bool "LinkUp-L7200"
	select CPU_ARM720T
	select FIQ
	help
	  Say Y here if you intend to run this kernel on a LinkUp Systems
	  L7200 Software Development Board which uses an ARM720T processor.
	  Information on this board can be obtained at:

	  <http://www.linkupsys.com/>

	  If you have any questions or comments about the Linux kernel port
	  to this board, send e-mail to <sjhill@cotw.com>.

config ARCH_DOVE
	bool "Marvell Dove"
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Dove SoC 88AP510

config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
	select CPU_FEROCEON
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
	select CPU_FEROCEON
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

config ARCH_MV78XX0
	bool "Marvell MV78xx0"
	select CPU_FEROCEON
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

config ARCH_ORION5X
	bool "Marvell Orion"
	depends on MMU
	select CPU_FEROCEON
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Orion 5x series SoCs:
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
	  Orion-2 (5281), Orion-1-90 (6183).

config ARCH_MMP
	bool "Marvell PXA168/910"
	depends on MMU
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
	select PLAT_PXA
	help
	  Support for Marvell's PXA168/910 processor line.

config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
	select CPU_ARM922T
	select GENERIC_GPIO
        select ARCH_REQUIRE_GPIOLIB
	help
	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
	  System-on-Chip devices.

config ARCH_NS9XXX
	bool "NetSilicon NS9xxx"
	select CPU_ARM926T
	select GENERIC_GPIO
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	help
	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
	  System.

	  <http://www.digi.com/products/microprocessors/index.jsp>

config ARCH_W90X900
	bool "Nuvoton W90X900 CPU"
	select CPU_ARM926T
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_GPIO
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
	  At present, the w90x900 has been renamed nuc900, regarding
	  the ARM series product line, you can login the following
	  link address to know more.

	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>

config ARCH_NUC93X
	bool "Nuvoton NUC93X CPU"
	select CPU_ARM926T
	select HAVE_CLK
	select COMMON_CLKDEV
	help
	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
	  low-power and high performance MPEG-4/JPEG multimedia controller chip.

config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
	select CPU_ARM926T
	select HAVE_CLK
	select COMMON_CLKDEV
	help
	  This enables support for Philips PNX4008 mobile platform.

config ARCH_PXA
	bool "PXA2xx/PXA3xx-based"
	depends on MMU
	select ARCH_MTD_XIP
	select ARCH_HAS_CPUFREQ
	select GENERIC_GPIO
	select HAVE_CLK
	select COMMON_CLKDEV
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
	select PLAT_PXA
	help
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.

config ARCH_MSM
	bool "Qualcomm MSM"
	select CPU_V6
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
	  Support for Qualcomm MSM7K based systems.  This runs on the ARM11
	  apps processor of the MSM7K and depends on a shared memory
	  interface to the ARM9 modem processor which runs the baseband stack
	  and controls some vital subsystems (clock and power control, etc).

config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
	select ARCH_MAY_HAVE_PC_FDC
	select HAVE_PATA_PLATFORM
	select ISA_DMA_API
	select NO_IOPORT
	select ARCH_SPARSEMEM_ENABLE
	help
	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
	  CD-ROM interface, serial and parallel port, and the floppy drive.

config ARCH_SA1100
	bool "SA1100-based"
	select CPU_SA1100
	select ISA
	select ARCH_SPARSEMEM_ENABLE
	select ARCH_MTD_XIP
	select ARCH_HAS_CPUFREQ
	select CPU_FREQ
	select GENERIC_GPIO
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	select TICK_ONESHOT
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for StrongARM 11x0 based boards.

config ARCH_S3C2410
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
	select GENERIC_GPIO
	select ARCH_HAS_CPUFREQ
	select HAVE_CLK
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
	  the Samsung SMDK2410 development board (and derivatives).

config ARCH_S3C64XX
	bool "Samsung S3C64XX"
	select GENERIC_GPIO
	select HAVE_CLK
	select ARCH_HAS_CPUFREQ
	help
	  Samsung S3C64XX series based systems

config ARCH_S5PC1XX
	bool "Samsung S5PC1XX"
	select GENERIC_GPIO
	select HAVE_CLK
	select CPU_V7
	select ARM_L1_CACHE_SHIFT_6
	help
	  Samsung S5PC1XX series based systems

config ARCH_SHARK
	bool "Shark"
	select CPU_SA110
	select ISA
	select ISA_DMA
	select ZONE_DMA
	select PCI
	help
	  Support for the StrongARM based Digital DNARD machine, also known
	  as "Shark" (<http://www.shark-linux.de/shark.html>).

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
	select CPU_ARM922T
	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
	help
	  Say Y here for systems based on one of the Sharp LH7A40X
	  System on a Chip processors.  These CPUs include an ARM922T
	  core with a wide array of integrated devices for
	  hand-held and low-power applications.

config ARCH_U300
	bool "ST-Ericsson U300 Series"
	depends on MMU
	select CPU_ARM926T
	select HAVE_TCM
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_GPIO
	help
	  Support for ST-Ericsson U300 series mobile platforms.

config ARCH_DAVINCI
	bool "TI DaVinci"
	select CPU_ARM926T
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select HAVE_CLK
	select ZONE_DMA
	select HAVE_IDE
	select COMMON_CLKDEV
	select GENERIC_ALLOCATOR
	select ARCH_HAS_HOLES_MEMORYMODEL
	help
	  Support for TI's DaVinci platform.

config ARCH_OMAP
	bool "TI OMAP"
	select GENERIC_GPIO
	select HAVE_CLK
	select ARCH_REQUIRE_GPIOLIB
	select ARCH_HAS_CPUFREQ
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_HAS_HOLES_MEMORYMODEL
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

config ARCH_BCMRING
	bool "Broadcom BCMRING"
	depends on MMU
	select CPU_V6
	select ARM_AMBA
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_WANT_OPTIONAL_GPIOLIB
	help
	  Support for Broadcom's BCMRing platform.

config ARCH_U8500
	bool "ST-Ericsson U8500 Series"
	select CPU_V7
	select ARM_AMBA
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
	help
	  Support for ST-Ericsson's Ux500 architecture

endchoice

source "arch/arm/mach-aaec2000/Kconfig"

source "arch/arm/mach-at91/Kconfig"

source "arch/arm/mach-bcmring/Kconfig"

source "arch/arm/mach-clps711x/Kconfig"

source "arch/arm/mach-davinci/Kconfig"

source "arch/arm/mach-dove/Kconfig"

source "arch/arm/mach-ep93xx/Kconfig"

source "arch/arm/mach-footbridge/Kconfig"

source "arch/arm/mach-gemini/Kconfig"

source "arch/arm/mach-h720x/Kconfig"

source "arch/arm/mach-integrator/Kconfig"

source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"

source "arch/arm/mach-iop13xx/Kconfig"

source "arch/arm/mach-ixp4xx/Kconfig"

source "arch/arm/mach-ixp2000/Kconfig"

source "arch/arm/mach-ixp23xx/Kconfig"

source "arch/arm/mach-kirkwood/Kconfig"

source "arch/arm/mach-ks8695/Kconfig"

source "arch/arm/mach-lh7a40x/Kconfig"

source "arch/arm/mach-loki/Kconfig"

source "arch/arm/mach-msm/Kconfig"

source "arch/arm/mach-mv78xx0/Kconfig"

source "arch/arm/plat-mxc/Kconfig"

source "arch/arm/mach-netx/Kconfig"

source "arch/arm/mach-nomadik/Kconfig"
source "arch/arm/plat-nomadik/Kconfig"

source "arch/arm/mach-ns9xxx/Kconfig"

source "arch/arm/mach-nuc93x/Kconfig"

source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"

source "arch/arm/mach-omap2/Kconfig"

source "arch/arm/mach-orion5x/Kconfig"

source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"

source "arch/arm/mach-mmp/Kconfig"

source "arch/arm/mach-realview/Kconfig"

source "arch/arm/mach-sa1100/Kconfig"

source "arch/arm/plat-samsung/Kconfig"
source "arch/arm/plat-s3c24xx/Kconfig"
source "arch/arm/plat-s3c64xx/Kconfig"
source "arch/arm/plat-s3c/Kconfig"
source "arch/arm/plat-s5pc1xx/Kconfig"

if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
source "arch/arm/mach-s3c2410/Kconfig"
source "arch/arm/mach-s3c2412/Kconfig"
source "arch/arm/mach-s3c2440/Kconfig"
source "arch/arm/mach-s3c2442/Kconfig"
source "arch/arm/mach-s3c2443/Kconfig"
endif

if ARCH_S3C64XX
source "arch/arm/mach-s3c6400/Kconfig"
source "arch/arm/mach-s3c6410/Kconfig"
endif

source "arch/arm/plat-stmp3xxx/Kconfig"

if ARCH_S5PC1XX
source "arch/arm/mach-s5pc100/Kconfig"
endif

source "arch/arm/mach-u300/Kconfig"

source "arch/arm/mach-ux500/Kconfig"

source "arch/arm/mach-versatile/Kconfig"

source "arch/arm/mach-w90x900/Kconfig"

# Definitions to make life easier
config ARCH_ACORN
	bool

config PLAT_IOP
	bool
	select GENERIC_CLOCKEVENTS
	select GENERIC_TIME

config PLAT_ORION
	bool

config PLAT_PXA
	bool

source arch/arm/mm/Kconfig

config IWMMXT
	bool "Enable iWMMXt support"
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
	default y if PXA27x || PXA3xx || ARCH_MMP
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

config CPU_HAS_PMU
	depends on CPU_V6 || CPU_V7 || XSCALE_PMU
	default y
	bool

if !MMU
source "arch/arm/Kconfig-nommu"
endif

config ARM_ERRATA_411920
	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
	depends on CPU_V6 && !SMP
	help
	  Invalidation of the Instruction Cache operation can
	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
	  It does not affect the MPCore. This option enables the ARM Ltd.
	  recommended workaround.

config ARM_ERRATA_430973
	bool "ARM errata: Stale prediction on replaced interworking branch"
	depends on CPU_V7
	help
	  This option enables the workaround for the 430973 Cortex-A8
	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
	  interworking branch is replaced with another code sequence at the
	  same virtual address, whether due to self-modifying code or virtual
	  to physical address re-mapping, Cortex-A8 does not recover from the
	  stale interworking branch prediction. This results in Cortex-A8
	  executing the new code sequence in the incorrect ARM or Thumb state.
	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
	  and also flushes the branch target cache at every context switch.
	  Note that setting specific bits in the ACTLR register may not be
	  available in non-secure mode.

config ARM_ERRATA_458693
	bool "ARM errata: Processor deadlock when a false hazard is created"
	depends on CPU_V7
	help
	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
	  erratum. For very specific sequences of memory operations, it is
	  possible for a hazard condition intended for a cache line to instead
	  be incorrectly associated with a different cache line. This false
	  hazard might then cause a processor deadlock. The workaround enables
	  the L1 caching of the NEON accesses and disables the PLD instruction
	  in the ACTLR register. Note that setting specific bits in the ACTLR
	  register may not be available in non-secure mode.

config ARM_ERRATA_460075
	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
	depends on CPU_V7
	help
	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
	  erratum. Any asynchronous access to the L2 cache may encounter a
	  situation in which recent store transactions to the L2 cache are lost
	  and overwritten with stale memory contents from external memory. The
	  workaround disables the write-allocate mode for the L2 cache via the
	  ACTLR register. Note that setting specific bits in the ACTLR register
	  may not be available in non-secure mode.

config PL310_ERRATA_588369
	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
	depends on CACHE_L2X0 && ARCH_OMAP4
	help
	   The PL310 L2 cache controller implements three types of Clean &
	   Invalidate maintenance operations: by Physical Address
	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
	   They are architecturally defined to behave as the execution of a
	   clean operation followed immediately by an invalidate operation,
	   both performing to the same memory location. This functionality
	   is not correctly implemented in PL310 as clean lines are not
	   invalidated as a result of these operations. Note that this errata
	   uses Texas Instrument's secure monitor api.
endmenu

source "arch/arm/common/Kconfig"

config FORCE_MAX_ZONEORDER
	int
	depends on SA1111
	default "9"

menu "Bus support"

config ARM_AMBA
	bool

config ISA
	bool
	help
	  Find out whether you have ISA slots on your motherboard.  ISA is the
	  name of a bus system, i.e. the way the CPU talks to the other stuff
	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
	  newer boards don't support it.  If you have ISA, say Y, otherwise N.

# Select ISA DMA controller support
config ISA_DMA
	bool
	select ISA_DMA_API

# Select ISA DMA interface
config ISA_DMA_API
	bool

config PCI
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
	help
	  Find out whether you have a PCI motherboard. PCI is the name of a
	  bus system, i.e. the way the CPU talks to the other stuff inside
	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
	  VESA. If you have PCI, say Y, otherwise N.

config PCI_SYSCALL
	def_bool PCI

# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

source "kernel/time/Kconfig"

config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
	depends on GENERIC_CLOCKEVENTS
	select USE_GENERIC_SMP_HELPERS
	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
	help
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all, single
	  processor machines. On a single processor machine, the kernel will
	  run faster if you say N here.

	  See also <file:Documentation/i386/IO-APIC.txt>,
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	  <http://www.linuxdoc.org/docs.html#howto>.

	  If you don't know what to do here, say N.

config HAVE_ARM_SCU
	bool
	depends on SMP
	help
	  This option enables support for the ARM system coherency unit

config HAVE_ARM_TWD
	bool
	depends on SMP
	help
	  This options enables support for the ARM timer and watchdog unit

choice
	prompt "Memory split"
	default VMSPLIT_3G
	help
	  Select the desired split between kernel and user memory.

	  If you are not absolutely sure what you are doing, leave this
	  option alone!

	config VMSPLIT_3G
		bool "3G/1G user/kernel split"
	config VMSPLIT_2G
		bool "2G/2G user/kernel split"
	config VMSPLIT_1G
		bool "1G/3G user/kernel split"
endchoice

config PAGE_OFFSET
	hex
	default 0x40000000 if VMSPLIT_1G
	default 0x80000000 if VMSPLIT_2G
	default 0xC0000000

config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

config LOCAL_TIMERS
	bool "Use local timer interrupts"
	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
	default y
	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
	help
	  Enable support for local timers on SMP platforms, rather then the
	  legacy IPI broadcast method.  Local timers allows the system
	  accounting to be spread across the timer interval, preventing a
	  "thundering herd" at every timer tick.

source kernel/Kconfig.preempt

config HZ
	int
	default 128 if ARCH_L7200
	default 200 if ARCH_EBSA110 || ARCH_S3C2410
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
	default AT91_TIMER_HZ if ARCH_AT91
	default 100

config THUMB2_KERNEL
	bool "Compile the kernel in Thumb-2 mode"
	depends on CPU_V7 && EXPERIMENTAL
	select AEABI
	select ARM_ASM_UNIFIED
	help
	  By enabling this option, the kernel will be compiled in
	  Thumb-2 mode. A compiler/assembler that understand the unified
	  ARM-Thumb syntax is needed.

	  If unsure, say N.

config ARM_ASM_UNIFIED
	bool

config AEABI
	bool "Use the ARM EABI to compile the kernel"
	help
	  This option allows for the kernel to be compiled using the latest
	  ARM ABI (aka EABI).  This is only useful if you are using a user
	  space environment that is also compiled with EABI.

	  Since there are major incompatibilities between the legacy ABI and
	  EABI, especially with regard to structure member alignment, this
	  option also changes the kernel syscall calling convention to
	  disambiguate both ABIs and allow for backward compatibility support
	  (selected with CONFIG_OABI_COMPAT).

	  To use this you need GCC version 4.0.0 or later.

config OABI_COMPAT
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
	depends on AEABI && EXPERIMENTAL
	default y
	help
	  This option preserves the old syscall interface along with the
	  new (ARM EABI) one. It also provides a compatibility layer to
	  intercept syscalls that have structure arguments which layout
	  in memory differs between the legacy ABI and the new ARM EABI
	  (only for non "thumb" binaries). This option adds a tiny
	  overhead to all syscalls and produces a slightly larger kernel.
	  If you know you'll be using only pure EABI user space then you
	  can say N here. If this option is not selected and you attempt
	  to execute a legacy ABI binary then the result will be
	  UNPREDICTABLE (in fact it can be predicted that it won't work
	  at all). If in doubt say Y.

config ARCH_HAS_HOLES_MEMORYMODEL
	bool

# Discontigmem is deprecated
config ARCH_DISCONTIGMEM_ENABLE
	bool

config ARCH_SPARSEMEM_ENABLE
	bool

config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

config ARCH_SELECT_MEMORY_MODEL
	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE

config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

config HIGHMEM
	bool "High Memory Support (EXPERIMENTAL)"
	depends on MMU && EXPERIMENTAL
	help
	  The address space of ARM processors is only 4 Gigabytes large
	  and it has to accommodate user address space, kernel address
	  space as well as some memory mapped IO. That means that, if you
	  have a large amount of physical memory and/or IO, not all of the
	  memory can be "permanently mapped" by the kernel. The physical
	  memory that is not permanently mapped is called "high memory".

	  Depending on the selected kernel/user memory split, minimum
	  vmalloc space and actual amount of RAM, you may not need this
	  option which should result in a slightly faster kernel.

	  If unsure, say n.

config HIGHPTE
	bool "Allocate 2nd-level pagetables from highmem"
	depends on HIGHMEM
	depends on !OUTER_CACHE

config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
	depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

source "mm/Kconfig"

config LEDS
	bool "Timer and CPU usage LEDs"
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
		   ARCH_AT91 || ARCH_DAVINCI || \
		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
	help
	  If you say Y here, the LEDs on your machine will be used
	  to provide useful information about your current system status.

	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
	  be able to select which LEDs are active using the options below. If
	  you are compiling a kernel for the EBSA-110 or the LART however, the
	  red LED will simply flash regularly to indicate that the system is
	  still functional. It is safe to say Y here if you have a CATS
	  system, but the driver will do nothing.

config LEDS_TIMER
	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
	depends on LEDS
	depends on !GENERIC_CLOCKEVENTS
	default y if ARCH_EBSA110
	help
	  If you say Y here, one of the system LEDs (the green one on the
	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
	  will flash regularly to indicate that the system is still
	  operational. This is mainly useful to kernel hackers who are
	  debugging unstable kernels.

	  The LART uses the same LED for both Timer LED and CPU usage LED
	  functions. You may choose to use both, but the Timer LED function
	  will overrule the CPU usage LED.

config LEDS_CPU
	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
	depends on LEDS
	help
	  If you say Y here, the red LED will be used to give a good real
	  time indication of CPU usage, by lighting whenever the idle task
	  is not currently executing.

	  The LART uses the same LED for both Timer LED and CPU usage LED
	  functions. You may choose to use both, but the Timer LED function
	  will overrule the CPU usage LED.

config ALIGNMENT_TRAP
	bool
	depends on CPU_CP15_MMU
	default y if !ARCH_EBSA110
	select HAVE_PROC_CPU if PROC_FS
	help
	  ARM processors cannot fetch/store information which is not
	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
	  address divisible by 4. On 32-bit ARM processors, these non-aligned
	  fetch/store instructions will be emulated in software if you say
	  here, which has a severe performance impact. This is necessary for
	  correct operation of some network protocols. With an IP-only
	  configuration it is safe to say N, otherwise say Y.

config UACCESS_WITH_MEMCPY
	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
	depends on MMU && EXPERIMENTAL
	default y if CPU_FEROCEON
	help
	  Implement faster copy_to_user and clear_user methods for CPU
	  cores where a 8-word STM instruction give significantly higher
	  memory write throughput than a sequence of individual 32bit stores.

	  A possible side effect is a slight increase in scheduling latency
	  between threads sharing the same address space if they invoke
	  such copy operations with large buffers.

	  However, if the CPU data cache is using a write-allocate mode,
	  this option is unlikely to provide any performance gain.

endmenu

menu "Boot options"

# Compressed boot loader in ROM.  Yes, we really want to ask about
# TEXT and BSS so we preserve their values in the config files.
config ZBOOT_ROM_TEXT
	hex "Compressed ROM boot loader base address"
	default "0"
	help
	  The physical address at which the ROM-able zImage is to be
	  placed in the target.  Platforms which normally make use of
	  ROM-able zImage formats normally set this to a suitable
	  value in their defconfig file.

	  If ZBOOT_ROM is not enabled, this has no effect.

config ZBOOT_ROM_BSS
	hex "Compressed ROM boot loader BSS address"
	default "0"
	help
	  The base address of an area of read/write memory in the target
	  for the ROM-able zImage which must be available while the
	  decompressor is running. It must be large enough to hold the
	  entire decompressed kernel plus an additional 128 KiB.
	  Platforms which normally make use of ROM-able zImage formats
	  normally set this to a suitable value in their defconfig file.

	  If ZBOOT_ROM is not enabled, this has no effect.

config ZBOOT_ROM
	bool "Compressed boot loader in ROM/flash"
	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
	help
	  Say Y here if you intend to execute your compressed kernel image
	  (zImage) directly from ROM or flash.  If unsure, say N.

config CMDLINE
	string "Default kernel command string"
	default ""
	help
	  On some architectures (EBSA110 and CATS), there is currently no way
	  for the boot loader to pass arguments to the kernel. For these
	  architectures, you should supply some command-line options at build
	  time by entering them here. As a minimum, you should specify the
	  memory size and the root device (e.g., mem=64M root=/dev/nfs).

config XIP_KERNEL
	bool "Kernel Execute-In-Place from ROM"
	depends on !ZBOOT_ROM
	help
	  Execute-In-Place allows the kernel to run from non-volatile storage
	  directly addressable by the CPU, such as NOR flash. This saves RAM
	  space since the text section of the kernel is not loaded from flash
	  to RAM.  Read-write sections, such as the data section and stack,
	  are still copied to RAM.  The XIP kernel is not compressed since
	  it has to run directly from flash, so it will take more space to
	  store it.  The flash address used to link the kernel object files,
	  and for storing it, is configuration dependent. Therefore, if you
	  say Y here, you must know the proper physical address where to
	  store the kernel image depending on your own flash memory usage.

	  Also note that the make target becomes "make xipImage" rather than
	  "make zImage" or "make Image".  The final kernel binary to put in
	  ROM memory will be arch/arm/boot/xipImage.

	  If unsure, say N.

config XIP_PHYS_ADDR
	hex "XIP Kernel Physical Location"
	depends on XIP_KERNEL
	default "0x00080000"
	help
	  This is the physical address in your flash memory the kernel will
	  be linked for and stored to.  This address is dependent on your
	  own flash usage.

config KEXEC
	bool "Kexec system call (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
	  but it is independent of the system firmware.   And like a reboot
	  you can start any kernel with it, not just Linux.

	  It is an ongoing process to be certain the hardware in a machine
	  is properly shutdown, so do not be surprised if this code does not
	  initially work for you.  It may help to enable device hotplugging
	  support.

config ATAGS_PROC
	bool "Export atags in procfs"
	depends on KEXEC
	default y
	help
	  Should the atags used to boot the kernel be exported in an "atags"
	  file in procfs. Useful with kexec.

endmenu

menu "CPU Power Management"

if ARCH_HAS_CPUFREQ

source "drivers/cpufreq/Kconfig"

config CPU_FREQ_SA1100
	bool

config CPU_FREQ_SA1110
	bool

config CPU_FREQ_INTEGRATOR
	tristate "CPUfreq driver for ARM Integrator CPUs"
	depends on ARCH_INTEGRATOR && CPU_FREQ
	default y
	help
	  This enables the CPUfreq driver for ARM Integrator CPUs.

	  For details, take a look at <file:Documentation/cpu-freq>.

	  If in doubt, say Y.

config CPU_FREQ_PXA
	bool
	depends on CPU_FREQ && ARCH_PXA && PXA25x
	default y
	select CPU_FREQ_DEFAULT_GOV_USERSPACE

config CPU_FREQ_S3C64XX
	bool "CPUfreq support for Samsung S3C64XX CPUs"
	depends on CPU_FREQ && CPU_S3C6410

config CPU_FREQ_S3C
	bool
	help
	  Internal configuration node for common cpufreq on Samsung SoC

config CPU_FREQ_S3C24XX
	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
	select CPU_FREQ_S3C
	help
	  This enables the CPUfreq driver for the Samsung S3C24XX family
	  of CPUs.

	  For details, take a look at <file:Documentation/cpu-freq>.

	  If in doubt, say N.

config CPU_FREQ_S3C24XX_PLL
	bool "Support CPUfreq changing of PLL frequency"
	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
	help
	  Compile in support for changing the PLL frequency from the
	  S3C24XX series CPUfreq driver. The PLL takes time to settle
	  after a frequency change, so by default it is not enabled.

	  This also means that the PLL tables for the selected CPU(s) will
	  be built which may increase the size of the kernel image.

config CPU_FREQ_S3C24XX_DEBUG
	bool "Debug CPUfreq Samsung driver core"
	depends on CPU_FREQ_S3C24XX
	help
	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core

config CPU_FREQ_S3C24XX_IODEBUG
	bool "Debug CPUfreq Samsung driver IO timing"
	depends on CPU_FREQ_S3C24XX
	help
	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core

config CPU_FREQ_S3C24XX_DEBUGFS
	bool "Export debugfs for CPUFreq"
	depends on CPU_FREQ_S3C24XX && DEBUG_FS
	help
	  Export status information via debugfs.

endif

source "drivers/cpuidle/Kconfig"

endmenu

menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
	depends on !AEABI || OABI_COMPAT
	---help---
	  Say Y to include the NWFPE floating point emulator in the kernel.
	  This is necessary to run most binaries. Linux does not currently
	  support floating point hardware so you need to say Y here even if
	  your machine has an FPA or floating point co-processor podule.

	  You may say N here if you are going to load the Acorn FPEmulator
	  early in the bootup.

config FPE_NWFPE_XP
	bool "Support extended precision"
	depends on FPE_NWFPE
	help
	  Say Y to include 80-bit support in the kernel floating-point
	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
	  Note that gcc does not generate 80-bit operations by default,
	  so in most cases this option only enlarges the size of the
	  floating point emulator without any good reason.

	  You almost surely want to say N here.

config FPE_FASTFPE
	bool "FastFPE math emulation (EXPERIMENTAL)"
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
	---help---
	  Say Y here to include the FAST floating point emulator in the kernel.
	  This is an experimental much faster emulator which now also has full
	  precision for the mantissa.  It does not support any exceptions.
	  It is very simple, and approximately 3-6 times faster than NWFPE.

	  It should be sufficient for most programs.  It may be not suitable
	  for scientific calculations, but you have to check this for yourself.
	  If you do not feel you need a faster FP emulation you should better
	  choose NWFPE.

config VFP
	bool "VFP-format floating point maths"
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
	help
	  Say Y to include VFP support code in the kernel. This is needed
	  if your hardware includes a VFP unit.

	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
	  release notes and additional status information.

	  Say N if your target does not have VFP hardware.

config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

config NEON
	bool "Advanced SIMD (NEON) Extension support"
	depends on VFPv3 && CPU_V7
	help
	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
	  Extension.

endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
	depends on !AEABI
	help
	  Say Y here to include the kernel code necessary if you want to run
	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
	  experimental; if this sounds frightening, say N and sleep in peace.
	  You can also say M here to compile this support as a module (which
	  will be called arthur).

endmenu

menu "Power management options"

source "kernel/power/Kconfig"

config ARCH_SUSPEND_POSSIBLE
	def_bool y

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"