summaryrefslogtreecommitdiff
path: root/arch/arm/Kconfig
blob: 2bb6bcee025c69ffe9e4650c2c176f0bef09fbc3 (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
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
config ARM
	bool
	default y
	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
	select ARCH_HAVE_CUSTOM_GPIO_H
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_USE_BUILTIN_BSWAP
	select ARCH_USE_CMPXCHG_LOCKREF
	select ARCH_WANT_IPC_PARSE_VERSION
	select BUILDTIME_EXTABLE_SORT if MMU
	select CLONE_BACKWARDS
	select CPU_PM if (SUSPEND || CPU_IDLE)
	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
	select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
	select GENERIC_IDLE_POLL_SETUP
	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
	select GENERIC_PCI_IOMAP
	select GENERIC_SCHED_CLOCK
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_STRNCPY_FROM_USER
	select GENERIC_STRNLEN_USER
	select HARDIRQS_SW_RESEND
	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
	select HAVE_ARCH_KGDB
	select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
	select HAVE_ARCH_TRACEHOOK
	select HAVE_BPF_JIT
	select HAVE_CC_STACKPROTECTOR
	select HAVE_CONTEXT_TRACKING
	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DMA_API_DEBUG
	select HAVE_DMA_ATTRS
	select HAVE_DMA_CONTIGUOUS if MMU
	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
	select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
	select HAVE_GENERIC_DMA_COHERENT
	select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
	select HAVE_IDE if PCI || ISA || PCMCIA
	select HAVE_IRQ_TIME_ACCOUNTING
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_LZ4
	select HAVE_KERNEL_LZMA
	select HAVE_KERNEL_LZO
	select HAVE_KERNEL_XZ
	select HAVE_KPROBES if !XIP_KERNEL
	select HAVE_KRETPROBES if (HAVE_KPROBES)
	select HAVE_MEMBLOCK
	select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
	select HAVE_PERF_EVENTS
	select HAVE_PERF_REGS
	select HAVE_PERF_USER_STACK_DUMP
	select HAVE_REGS_AND_STACK_ACCESS_API
	select HAVE_SYSCALL_TRACEPOINTS
	select HAVE_UID16
	select HAVE_VIRT_CPU_ACCOUNTING_GEN
	select IRQ_FORCED_THREADING
	select KTIME_SCALAR
	select MODULES_USE_ELF_REL
	select NO_BOOTMEM
	select OLD_SIGACTION
	select OLD_SIGSUSPEND3
	select PERF_USE_VMALLOC
	select RTC_LIB
	select SYS_SUPPORTS_APM_EMULATION
	# Above selects are sorted alphabetically; please add new ones
	# according to that.  Thanks.
	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 ARM_HAS_SG_CHAIN
	bool

config NEED_SG_DMA_LENGTH
	bool

config ARM_DMA_USE_IOMMU
	bool
	select ARM_HAS_SG_CHAIN
	select NEED_SG_DMA_LENGTH

if ARM_DMA_USE_IOMMU

config ARM_DMA_IOMMU_ALIGNMENT
	int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
	range 4 9
	default 8
	help
	  DMA mapping framework by default aligns all buffers to the smallest
	  PAGE_SIZE order which is greater than or equal to the requested buffer
	  size. This works well for buffers up to a few hundreds kilobytes, but
	  for larger buffers it just a waste of address space. Drivers which has
	  relatively small addressing window (like 64Mib) might run out of
	  virtual space with just a few allocations.

	  With this parameter you can specify the maximum PAGE_SIZE order for
	  DMA IOMMU buffers. Larger buffers will be aligned only to this
	  specified order. The order is expressed as a power of two multiplied
	  by the PAGE_SIZE.

endif

config MIGHT_HAVE_PCI
	bool

config SYS_SUPPORTS_APM_EMULATION
	bool

config HAVE_TCM
	bool
	select GENERIC_ALLOCATOR

config HAVE_PROC_CPU
	bool

config NO_IOPORT_MAP
	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 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 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 ARCH_HAS_BANDGAP
	bool

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 ARCH_SUPPORTS_UPROBES
	def_bool y

config ARCH_HAS_DMA_SET_COHERENT_MASK
	bool

config GENERIC_ISA_DMA
	bool

config FIQ
	bool

config NEED_RET_TO_USER
	bool

config ARCH_MTD_XIP
	bool

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.  This must be two pages
	  in size.

config ARM_PATCH_PHYS_VIRT
	bool "Patch physical to virtual translations at runtime" if EMBEDDED
	default y
	depends on !XIP_KERNEL && MMU
	depends on !ARCH_REALVIEW || !SPARSEMEM
	help
	  Patch phys-to-virt and virt-to-phys translation functions at
	  boot and module load time according to the position of the
	  kernel in system memory.

	  This can only be used with non-XIP MMU kernels where the base
	  of physical memory is at a 16MB boundary.

	  Only disable this option if you know that you do not require
	  this feature (eg, building a kernel for a single machine) and
	  you need to shrink the kernel to the minimal size.

config NEED_MACH_GPIO_H
	bool
	help
	  Select this when mach/gpio.h is required to provide special
	  definitions for this platform. The need for mach/gpio.h should
	  be avoided when possible.

config NEED_MACH_IO_H
	bool
	help
	  Select this when mach/io.h is required to provide special
	  definitions for this platform.  The need for mach/io.h should
	  be avoided when possible.

config NEED_MACH_MEMORY_H
	bool
	help
	  Select this when mach/memory.h is required to provide special
	  definitions for this platform.  The need for mach/memory.h should
	  be avoided when possible.

config PHYS_OFFSET
	hex "Physical address of main memory" if MMU
	depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
	default DRAM_BASE if !MMU
	help
	  Please provide the physical address corresponding to the
	  location of main memory in your system.

config GENERIC_BUG
	def_bool y
	depends on BUG

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'.

#
# The "ARM system type" choice list is ordered alphabetically by option
# text.  Please add new entries in the option alphabetic order.
#
choice
	prompt "ARM system type"
	default ARCH_VERSATILE if !MMU
	default ARCH_MULTIPLATFORM if MMU

config ARCH_MULTIPLATFORM
	bool "Allow multiple platforms to be selected"
	depends on MMU
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select ARM_HAS_SG_CHAIN
	select ARM_PATCH_PHYS_VIRT
	select AUTO_ZRELADDR
	select CLKSRC_OF
	select COMMON_CLK
	select GENERIC_CLOCKEVENTS
	select MULTI_IRQ_HANDLER
	select SPARSE_IRQ
	select USE_OF

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARCH_HAS_CPUFREQ
	select ARM_AMBA
	select ARM_PATCH_PHYS_VIRT
	select AUTO_ZRELADDR
	select COMMON_CLK
	select COMMON_CLK_VERSATILE
	select GENERIC_CLOCKEVENTS
	select HAVE_TCM
	select ICST
	select MULTI_IRQ_HANDLER
	select NEED_MACH_MEMORY_H
	select PLAT_VERSATILE
	select SPARSE_IRQ
	select USE_OF
	select VERSATILE_FPGA_IRQ
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select ARM_AMBA
	select ARM_TIMER_SP804
	select COMMON_CLK
	select COMMON_CLK_VERSATILE
	select GENERIC_CLOCKEVENTS
	select GPIO_PL061 if GPIOLIB
	select ICST
	select NEED_MACH_MEMORY_H
	select PLAT_VERSATILE
	select PLAT_VERSATILE_CLCD
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select ARM_AMBA
	select ARM_TIMER_SP804
	select ARM_VIC
	select CLKDEV_LOOKUP
	select GENERIC_CLOCKEVENTS
	select HAVE_MACH_CLKDEV
	select ICST
	select PLAT_VERSATILE
	select PLAT_VERSATILE_CLCD
	select PLAT_VERSATILE_CLOCK
	select VERSATILE_FPGA_IRQ
	help
	  This enables support for ARM Ltd Versatile board.

config ARCH_AT91
	bool "Atmel AT91"
	select ARCH_REQUIRE_GPIOLIB
	select CLKDEV_LOOKUP
	select IRQ_DOMAIN
	select NEED_MACH_IO_H if PCCARD
	select PINCTRL
	select PINCTRL_AT91 if USE_OF
	help
	  This enables support for systems based on Atmel
	  AT91RM9200 and AT91SAM9* processors.

config ARCH_CLPS711X
	bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
	select ARCH_REQUIRE_GPIOLIB
	select AUTO_ZRELADDR
	select CLKSRC_MMIO
	select COMMON_CLK
	select CPU_ARM720T
	select GENERIC_CLOCKEVENTS
	select MFD_SYSCON
	help
	  Support for Cirrus Logic 711x/721x/731x based boards.

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

config ARCH_EBSA110
	bool "EBSA-110"
	select ARCH_USES_GETTIMEOFFSET
	select CPU_SA110
	select ISA
	select NEED_MACH_IO_H
	select NEED_MACH_MEMORY_H
	select NO_IOPORT_MAP
	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_EFM32
	bool "Energy Micro efm32"
	depends on !MMU
	select ARCH_REQUIRE_GPIOLIB
	select ARM_NVIC
	select AUTO_ZRELADDR
	select CLKSRC_OF
	select COMMON_CLK
	select CPU_V7M
	select GENERIC_CLOCKEVENTS
	select NO_DMA
	select NO_IOPORT_MAP
	select SPARSE_IRQ
	select USE_OF
	help
	  Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
	  processors.

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

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

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

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

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

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

config ARCH_IXP4XX
	bool "IXP4xx-based"
	depends on MMU
	select ARCH_HAS_DMA_SET_COHERENT_MASK
	select ARCH_REQUIRE_GPIOLIB
	select ARCH_SUPPORTS_BIG_ENDIAN
	select CLKSRC_MMIO
	select CPU_XSCALE
	select DMABOUNCE if PCI
	select GENERIC_CLOCKEVENTS
	select MIGHT_HAVE_PCI
	select NEED_MACH_IO_H
	select USB_EHCI_BIG_ENDIAN_DESC
	select USB_EHCI_BIG_ENDIAN_MMIO
	help
	  Support for Intel's IXP4XX (XScale) family of processors.

config ARCH_DOVE
	bool "Marvell Dove"
	select ARCH_REQUIRE_GPIOLIB
	select CPU_PJ4
	select GENERIC_CLOCKEVENTS
	select MIGHT_HAVE_PCI
	select MVEBU_MBUS
	select PINCTRL
	select PINCTRL_DOVE
	select PLAT_ORION_LEGACY
	help
	  Support for the Marvell Dove SoC 88AP510

config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
	select ARCH_HAS_CPUFREQ
	select ARCH_REQUIRE_GPIOLIB
	select CPU_FEROCEON
	select GENERIC_CLOCKEVENTS
	select MVEBU_MBUS
	select PCI
	select PCI_QUIRKS
	select PINCTRL
	select PINCTRL_KIRKWOOD
	select PLAT_ORION_LEGACY
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

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

config ARCH_ORION5X
	bool "Marvell Orion"
	depends on MMU
	select ARCH_REQUIRE_GPIOLIB
	select CPU_FEROCEON
	select GENERIC_CLOCKEVENTS
	select MVEBU_MBUS
	select PCI
	select PLAT_ORION_LEGACY
	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/MMP2"
	depends on MMU
	select ARCH_REQUIRE_GPIOLIB
	select CLKDEV_LOOKUP
	select GENERIC_ALLOCATOR
	select GENERIC_CLOCKEVENTS
	select GPIO_PXA
	select IRQ_DOMAIN
	select MULTI_IRQ_HANDLER
	select PINCTRL
	select PLAT_PXA
	select SPARSE_IRQ
	help
	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.

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

config ARCH_W90X900
	bool "Nuvoton W90X900 CPU"
	select ARCH_REQUIRE_GPIOLIB
	select CLKDEV_LOOKUP
	select CLKSRC_MMIO
	select CPU_ARM926T
	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_LPC32XX
	bool "NXP LPC32XX"
	select ARCH_REQUIRE_GPIOLIB
	select ARM_AMBA
	select CLKDEV_LOOKUP
	select CLKSRC_MMIO
	select CPU_ARM926T
	select GENERIC_CLOCKEVENTS
	select HAVE_IDE
	select USE_OF
	help
	  Support for the NXP LPC32XX family of processors

config ARCH_PXA
	bool "PXA2xx/PXA3xx-based"
	depends on MMU
	select ARCH_HAS_CPUFREQ
	select ARCH_MTD_XIP
	select ARCH_REQUIRE_GPIOLIB
	select ARM_CPU_SUSPEND if PM
	select AUTO_ZRELADDR
	select CLKDEV_LOOKUP
	select CLKSRC_MMIO
	select GENERIC_CLOCKEVENTS
	select GPIO_PXA
	select HAVE_IDE
	select MULTI_IRQ_HANDLER
	select PLAT_PXA
	select SPARSE_IRQ
	help
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.

config ARCH_MSM
	bool "Qualcomm MSM (non-multiplatform)"
	select ARCH_REQUIRE_GPIOLIB
	select COMMON_CLK
	select GENERIC_CLOCKEVENTS
	help
	  Support for Qualcomm MSM/QSD based systems.  This runs on the
	  apps processor of the MSM/QSD and depends on a shared memory
	  interface to the modem processor which runs the baseband
	  stack and controls some vital subsystems
	  (clock and power control, etc).

config ARCH_SHMOBILE_LEGACY
	bool "Renesas ARM SoCs (non-multiplatform)"
	select ARCH_SHMOBILE
	select ARM_PATCH_PHYS_VIRT
	select CLKDEV_LOOKUP
	select GENERIC_CLOCKEVENTS
	select HAVE_ARM_SCU if SMP
	select HAVE_ARM_TWD if SMP
	select HAVE_MACH_CLKDEV
	select HAVE_SMP
	select MIGHT_HAVE_CACHE_L2X0
	select MULTI_IRQ_HANDLER
	select NO_IOPORT_MAP
	select PINCTRL
	select PM_GENERIC_DOMAINS if PM
	select SPARSE_IRQ
	help
	  Support for Renesas ARM SoC platforms using a non-multiplatform
	  kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
	  and RZ families.

config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select ARCH_MAY_HAVE_PC_FDC
	select ARCH_SPARSEMEM_ENABLE
	select ARCH_USES_GETTIMEOFFSET
	select CPU_SA110
	select FIQ
	select HAVE_IDE
	select HAVE_PATA_PLATFORM
	select ISA_DMA_API
	select NEED_MACH_IO_H
	select NEED_MACH_MEMORY_H
	select NO_IOPORT_MAP
	select VIRT_TO_BUS
	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 ARCH_HAS_CPUFREQ
	select ARCH_MTD_XIP
	select ARCH_REQUIRE_GPIOLIB
	select ARCH_SPARSEMEM_ENABLE
	select CLKDEV_LOOKUP
	select CLKSRC_MMIO
	select CPU_FREQ
	select CPU_SA1100
	select GENERIC_CLOCKEVENTS
	select HAVE_IDE
	select ISA
	select NEED_MACH_MEMORY_H
	select SPARSE_IRQ
	help
	  Support for StrongARM 11x0 based boards.

config ARCH_S3C24XX
	bool "Samsung S3C24XX SoCs"
	select ARCH_HAS_CPUFREQ
	select ARCH_REQUIRE_GPIOLIB
	select ATAGS
	select CLKDEV_LOOKUP
	select CLKSRC_SAMSUNG_PWM
	select GENERIC_CLOCKEVENTS
	select GPIO_SAMSUNG
	select HAVE_S3C2410_I2C if I2C
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
	select HAVE_S3C_RTC if RTC_CLASS
	select MULTI_IRQ_HANDLER
	select NEED_MACH_IO_H
	select SAMSUNG_ATAGS
	help
	  Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
	  and S3C2450 SoCs 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 ARCH_HAS_CPUFREQ
	select ARCH_REQUIRE_GPIOLIB
	select ARM_AMBA
	select ARM_VIC
	select ATAGS
	select CLKDEV_LOOKUP
	select CLKSRC_SAMSUNG_PWM
	select COMMON_CLK
	select CPU_V6K
	select GENERIC_CLOCKEVENTS
	select GPIO_SAMSUNG
	select HAVE_S3C2410_I2C if I2C
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
	select HAVE_TCM
	select NO_IOPORT_MAP
	select PLAT_SAMSUNG
	select PM_GENERIC_DOMAINS if PM
	select S3C_DEV_NAND
	select S3C_GPIO_TRACK
	select SAMSUNG_ATAGS
	select SAMSUNG_WAKEMASK
	select SAMSUNG_WDT_RESET
	help
	  Samsung S3C64XX series based systems

config ARCH_S5P64X0
	bool "Samsung S5P6440 S5P6450"
	select ATAGS
	select CLKDEV_LOOKUP
	select CLKSRC_SAMSUNG_PWM
	select CPU_V6
	select GENERIC_CLOCKEVENTS
	select GPIO_SAMSUNG
	select HAVE_S3C2410_I2C if I2C
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
	select HAVE_S3C_RTC if RTC_CLASS
	select NEED_MACH_GPIO_H
	select SAMSUNG_ATAGS
	select SAMSUNG_WDT_RESET
	help
	  Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
	  SMDK6450.

config ARCH_S5PC100
	bool "Samsung S5PC100"
	select ARCH_REQUIRE_GPIOLIB
	select ATAGS
	select CLKDEV_LOOKUP
	select CLKSRC_SAMSUNG_PWM
	select CPU_V7
	select GENERIC_CLOCKEVENTS
	select GPIO_SAMSUNG
	select HAVE_S3C2410_I2C if I2C
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
	select HAVE_S3C_RTC if RTC_CLASS
	select NEED_MACH_GPIO_H
	select SAMSUNG_ATAGS
	select SAMSUNG_WDT_RESET
	help
	  Samsung S5PC100 series based systems

config ARCH_S5PV210
	bool "Samsung S5PV210/S5PC110"
	select ARCH_HAS_CPUFREQ
	select ARCH_HAS_HOLES_MEMORYMODEL
	select ARCH_SPARSEMEM_ENABLE
	select ATAGS
	select CLKDEV_LOOKUP
	select CLKSRC_SAMSUNG_PWM
	select CPU_V7
	select GENERIC_CLOCKEVENTS
	select GPIO_SAMSUNG
	select HAVE_S3C2410_I2C if I2C
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
	select HAVE_S3C_RTC if RTC_CLASS
	select NEED_MACH_GPIO_H
	select NEED_MACH_MEMORY_H
	select SAMSUNG_ATAGS
	help
	  Samsung S5PV210/S5PC110 series based systems

config ARCH_EXYNOS
	bool "Samsung EXYNOS"
	select ARCH_HAS_CPUFREQ
	select ARCH_HAS_HOLES_MEMORYMODEL
	select ARCH_REQUIRE_GPIOLIB
	select ARCH_SPARSEMEM_ENABLE
	select ARM_GIC
	select COMMON_CLK
	select CPU_V7
	select GENERIC_CLOCKEVENTS
	select HAVE_S3C2410_I2C if I2C
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
	select HAVE_S3C_RTC if RTC_CLASS
	select NEED_MACH_MEMORY_H
	select SPARSE_IRQ
	select SRAM
	select USE_OF
	help
	  Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)

config ARCH_DAVINCI
	bool "TI DaVinci"
	select ARCH_HAS_HOLES_MEMORYMODEL
	select ARCH_REQUIRE_GPIOLIB
	select CLKDEV_LOOKUP
	select GENERIC_ALLOCATOR
	select GENERIC_CLOCKEVENTS
	select GENERIC_IRQ_CHIP
	select HAVE_IDE
	select TI_PRIV_EDMA
	select USE_OF
	select ZONE_DMA
	help
	  Support for TI's DaVinci platform.

config ARCH_OMAP1
	bool "TI OMAP1"
	depends on MMU
	select ARCH_HAS_CPUFREQ
	select ARCH_HAS_HOLES_MEMORYMODEL
	select ARCH_OMAP
	select ARCH_REQUIRE_GPIOLIB
	select CLKDEV_LOOKUP
	select CLKSRC_MMIO
	select GENERIC_CLOCKEVENTS
	select GENERIC_IRQ_CHIP
	select HAVE_IDE
	select IRQ_DOMAIN
	select NEED_MACH_IO_H if PCCARD
	select NEED_MACH_MEMORY_H
	help
	  Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)

endchoice

menu "Multiple platform selection"
	depends on ARCH_MULTIPLATFORM

comment "CPU Core family selection"

config ARCH_MULTI_V4
	bool "ARMv4 based platforms (FA526)"
	depends on !ARCH_MULTI_V6_V7
	select ARCH_MULTI_V4_V5
	select CPU_FA526

config ARCH_MULTI_V4T
	bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
	depends on !ARCH_MULTI_V6_V7
	select ARCH_MULTI_V4_V5
	select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
		CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
		CPU_ARM925T || CPU_ARM940T)

config ARCH_MULTI_V5
	bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
	depends on !ARCH_MULTI_V6_V7
	select ARCH_MULTI_V4_V5
	select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
		CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
		CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)

config ARCH_MULTI_V4_V5
	bool

config ARCH_MULTI_V6
	bool "ARMv6 based platforms (ARM11)"
	select ARCH_MULTI_V6_V7
	select CPU_V6K

config ARCH_MULTI_V7
	bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
	default y
	select ARCH_MULTI_V6_V7
	select CPU_V7
	select HAVE_SMP

config ARCH_MULTI_V6_V7
	bool
	select MIGHT_HAVE_CACHE_L2X0

config ARCH_MULTI_CPU_AUTO
	def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
	select ARCH_MULTI_V5

endmenu

config ARCH_VIRT
	bool "Dummy Virtual Machine" if ARCH_MULTI_V7
	select ARM_AMBA
	select ARM_GIC
	select ARM_PSCI
	select HAVE_ARM_ARCH_TIMER

#
# This is sorted alphabetically by mach-* pathname.  However, plat-*
# Kconfigs may be included either alphabetically (according to the
# plat- suffix) or along side the corresponding mach-* source.
#
source "arch/arm/mach-mvebu/Kconfig"

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

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

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

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

source "arch/arm/mach-cns3xxx/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-highbank/Kconfig"

source "arch/arm/mach-hisi/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-keystone/Kconfig"

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

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

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

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

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

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

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

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

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

source "arch/arm/mach-nspire/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-picoxcell/Kconfig"

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

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

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

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

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

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

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

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

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

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

source "arch/arm/mach-s3c24xx/Kconfig"

source "arch/arm/mach-s3c64xx/Kconfig"

source "arch/arm/mach-s5p64x0/Kconfig"

source "arch/arm/mach-s5pc100/Kconfig"

source "arch/arm/mach-s5pv210/Kconfig"

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

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

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

source "arch/arm/mach-prima2/Kconfig"

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

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

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

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

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

source "arch/arm/mach-vt8500/Kconfig"

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

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

# Definitions to make life easier
config ARCH_ACORN
	bool

config PLAT_IOP
	bool
	select GENERIC_CLOCKEVENTS

config PLAT_ORION
	bool
	select CLKSRC_MMIO
	select COMMON_CLK
	select GENERIC_IRQ_CHIP
	select IRQ_DOMAIN

config PLAT_ORION_LEGACY
	bool
	select PLAT_ORION

config PLAT_PXA
	bool

config PLAT_VERSATILE
	bool

config ARM_TIMER_SP804
	bool
	select CLKSRC_MMIO
	select CLKSRC_OF if OF

source "arch/arm/firmware/Kconfig"

source arch/arm/mm/Kconfig

config ARM_NR_BANKS
	int
	default 16 if ARCH_EP93XX
	default 8

config IWMMXT
	bool "Enable iWMMXt support"
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
	default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

config MULTI_IRQ_HANDLER
	bool
	help
	  Allow each machine to specify it's own IRQ handler at run time.

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

config PJ4B_ERRATA_4742
	bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
	depends on CPU_PJ4B && MACH_ARMADA_370
	default y
	help
	  When coming out of either a Wait for Interrupt (WFI) or a Wait for
	  Event (WFE) IDLE states, a specific timing sensitivity exists between
	  the retiring WFI/WFE instructions and the newly issued subsequent
	  instructions.  This sensitivity can result in a CPU hang scenario.
	  Workaround:
	  The software must insert either a Data Synchronization Barrier (DSB)
	  or Data Memory Barrier (DMB) command immediately after the WFI/WFE
	  instruction

config ARM_ERRATA_326103
	bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
	depends on CPU_V6
	help
	  Executing a SWP instruction to read-only memory does not set bit 11
	  of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
	  treat the access as a read, preventing a COW from occurring and
	  causing the faulting task to livelock.

config ARM_ERRATA_411920
	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
	depends on CPU_V6 || CPU_V6K
	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
	depends on !ARCH_MULTIPLATFORM
	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
	depends on !ARCH_MULTIPLATFORM
	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 ARM_ERRATA_742230
	bool "ARM errata: DMB operation may be faulty"
	depends on CPU_V7 && SMP
	depends on !ARCH_MULTIPLATFORM
	help
	  This option enables the workaround for the 742230 Cortex-A9
	  (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
	  between two write operations may not ensure the correct visibility
	  ordering of the two writes. This workaround sets a specific bit in
	  the diagnostic register of the Cortex-A9 which causes the DMB
	  instruction to behave as a DSB, ensuring the correct behaviour of
	  the two writes.

config ARM_ERRATA_742231
	bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
	depends on CPU_V7 && SMP
	depends on !ARCH_MULTIPLATFORM
	help
	  This option enables the workaround for the 742231 Cortex-A9
	  (r2p0..r2p2) erratum. Under certain conditions, specific to the
	  Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
	  accessing some data located in the same cache line, may get corrupted
	  data due to bad handling of the address hazard when the line gets
	  replaced from one of the CPUs at the same time as another CPU is
	  accessing it. This workaround sets specific bits in the diagnostic
	  register of the Cortex-A9 which reduces the linefill issuing
	  capabilities of the processor.

config PL310_ERRATA_588369
	bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
	depends on CACHE_L2X0
	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.

config ARM_ERRATA_643719
	bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
	depends on CPU_V7 && SMP
	help
	  This option enables the workaround for the 643719 Cortex-A9 (prior to
	  r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
	  register returns zero when it should return one. The workaround
	  corrects this value, ensuring cache maintenance operations which use
	  it behave as intended and avoiding data corruption.

config ARM_ERRATA_720789
	bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
	depends on CPU_V7
	help
	  This option enables the workaround for the 720789 Cortex-A9 (prior to
	  r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
	  broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
	  As a consequence of this erratum, some TLB entries which should be
	  invalidated are not, resulting in an incoherency in the system page
	  tables. The workaround changes the TLB flushing routines to invalidate
	  entries regardless of the ASID.

config PL310_ERRATA_727915
	bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
	depends on CACHE_L2X0
	help
	  PL310 implements the Clean & Invalidate by Way L2 cache maintenance
	  operation (offset 0x7FC). This operation runs in background so that
	  PL310 can handle normal accesses while it is in progress. Under very
	  rare circumstances, due to this erratum, write data can be lost when
	  PL310 treats a cacheable write transaction during a Clean &
	  Invalidate by Way operation.

config ARM_ERRATA_743622
	bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
	depends on CPU_V7
	depends on !ARCH_MULTIPLATFORM
	help
	  This option enables the workaround for the 743622 Cortex-A9
	  (r2p*) erratum. Under very rare conditions, a faulty
	  optimisation in the Cortex-A9 Store Buffer may lead to data
	  corruption. This workaround sets a specific bit in the diagnostic
	  register of the Cortex-A9 which disables the Store Buffer
	  optimisation, preventing the defect from occurring. This has no
	  visible impact on the overall performance or power consumption of the
	  processor.

config ARM_ERRATA_751472
	bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
	depends on CPU_V7
	depends on !ARCH_MULTIPLATFORM
	help
	  This option enables the workaround for the 751472 Cortex-A9 (prior
	  to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
	  completion of a following broadcasted operation if the second
	  operation is received by a CPU before the ICIALLUIS has completed,
	  potentially leading to corrupted entries in the cache or TLB.

config PL310_ERRATA_753970
	bool "PL310 errata: cache sync operation may be faulty"
	depends on CACHE_PL310
	help
	  This option enables the workaround for the 753970 PL310 (r3p0) erratum.

	  Under some condition the effect of cache sync operation on
	  the store buffer still remains when the operation completes.
	  This means that the store buffer is always asked to drain and
	  this prevents it from merging any further writes. The workaround
	  is to replace the normal offset of cache sync operation (0x730)
	  by another offset targeting an unmapped PL310 register 0x740.
	  This has the same effect as the cache sync operation: store buffer
	  drain and waiting for all buffers empty.

config ARM_ERRATA_754322
	bool "ARM errata: possible faulty MMU translations following an ASID switch"
	depends on CPU_V7
	help
	  This option enables the workaround for the 754322 Cortex-A9 (r2p*,
	  r3p*) erratum. A speculative memory access may cause a page table walk
	  which starts prior to an ASID switch but completes afterwards. This
	  can populate the micro-TLB with a stale entry which may be hit with
	  the new ASID. This workaround places two dsb instructions in the mm
	  switching code so that no page table walks can cross the ASID switch.

config ARM_ERRATA_754327
	bool "ARM errata: no automatic Store Buffer drain"
	depends on CPU_V7 && SMP
	help
	  This option enables the workaround for the 754327 Cortex-A9 (prior to
	  r2p0) erratum. The Store Buffer does not have any automatic draining
	  mechanism and therefore a livelock may occur if an external agent
	  continuously polls a memory location waiting to observe an update.
	  This workaround defines cpu_relax() as smp_mb(), preventing correctly
	  written polling loops from denying visibility of updates to memory.

config ARM_ERRATA_364296
	bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
	depends on CPU_V6
	help
	  This options enables the workaround for the 364296 ARM1136
	  r0p2 erratum (possible cache data corruption with
	  hit-under-miss enabled). It sets the undocumented bit 31 in
	  the auxiliary control register and the FI bit in the control
	  register, thus disabling hit-under-miss without putting the
	  processor into full low interrupt latency mode. ARM11MPCore
	  is not affected.

config ARM_ERRATA_764369
	bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
	depends on CPU_V7 && SMP
	help
	  This option enables the workaround for erratum 764369
	  affecting Cortex-A9 MPCore with two or more processors (all
	  current revisions). Under certain timing circumstances, a data
	  cache line maintenance operation by MVA targeting an Inner
	  Shareable memory region may fail to proceed up to either the
	  Point of Coherency or to the Point of Unification of the
	  system. This workaround adds a DSB instruction before the
	  relevant cache maintenance functions and sets a specific bit
	  in the diagnostic control register of the SCU.

config PL310_ERRATA_769419
	bool "PL310 errata: no automatic Store Buffer drain"
	depends on CACHE_L2X0
	help
	  On revisions of the PL310 prior to r3p2, the Store Buffer does
	  not automatically drain. This can cause normal, non-cacheable
	  writes to be retained when the memory system is idle, leading
	  to suboptimal I/O performance for drivers using coherent DMA.
	  This option adds a write barrier to the cpu_idle loop so that,
	  on systems with an outer cache, the store buffer is drained
	  explicitly.

config ARM_ERRATA_775420
       bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
       depends on CPU_V7
       help
	 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
	 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
	 operation aborts with MMU exception, it might cause the processor
	 to deadlock. This workaround puts DSB before executing ISB if
	 an abort may occur on cache maintenance.

config ARM_ERRATA_798181
	bool "ARM errata: TLBI/DSB failure on Cortex-A15"
	depends on CPU_V7 && SMP
	help
	  On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
	  adequately shooting down all use of the old entries. This
	  option enables the Linux kernel workaround for this erratum
	  which sends an IPI to the CPUs that are running the same ASID
	  as the one being invalidated.

config ARM_ERRATA_773022
	bool "ARM errata: incorrect instructions may be executed from loop buffer"
	depends on CPU_V7
	help
	  This option enables the workaround for the 773022 Cortex-A15
	  (up to r0p4) erratum. In certain rare sequences of code, the
	  loop buffer may deliver incorrect instructions. This
	  workaround disables the loop buffer to avoid the erratum.

endmenu

source "arch/arm/common/Kconfig"

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 MIGHT_HAVE_PCI
	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_DOMAINS
	bool
	depends on PCI

config PCI_NANOENGINE
	bool "BSE nanoEngine PCI support"
	depends on SA1100_NANOENGINE
	help
	  Enable PCI on the BSE nanoEngine board.

config PCI_SYSCALL
	def_bool PCI

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

source "drivers/pci/Kconfig"
source "drivers/pci/pcie/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

config HAVE_SMP
	bool
	help
	  This option should be selected by machines which have an SMP-
	  capable CPU.

	  The only effect of this option is to make the SMP-related
	  options available to the user for configuration.

config SMP
	bool "Symmetric Multi-Processing"
	depends on CPU_V6K || CPU_V7
	depends on GENERIC_CLOCKEVENTS
	depends on HAVE_SMP
	depends on MMU || ARM_MPU
	help
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.

	  If you say N here, the kernel will run on uni- 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,
	  uniprocessor machines. On a uniprocessor machine, the kernel
	  will run faster if you say N here.

	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.

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

config SMP_ON_UP
	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
	depends on SMP && !XIP_KERNEL && MMU
	default y
	help
	  SMP kernels contain instructions which fail on non-SMP processors.
	  Enabling this option allows the kernel to modify itself to make
	  these instructions safe.  Disabling it allows about 1K of space
	  savings.

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

config ARM_CPU_TOPOLOGY
	bool "Support cpu topology definition"
	depends on SMP && CPU_V7
	default y
	help
	  Support ARM cpu topology definition. The MPIDR register defines
	  affinity between processors which is then used to describe the cpu
	  topology of an ARM System.

config SCHED_MC
	bool "Multi-core scheduler support"
	depends on ARM_CPU_TOPOLOGY
	help
	  Multi-core scheduler support improves the CPU scheduler's decision
	  making when dealing with multi-core CPU chips at a cost of slightly
	  increased overhead in some places. If unsure say N here.

config SCHED_SMT
	bool "SMT scheduler support"
	depends on ARM_CPU_TOPOLOGY
	help
	  Improves the CPU scheduler's decision making when dealing with
	  MultiThreading at a cost of slightly increased overhead in some
	  places. If unsure say N here.

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

config HAVE_ARM_ARCH_TIMER
	bool "Architected timer support"
	depends on CPU_V7
	select ARM_ARCH_TIMER
	select GENERIC_CLOCKEVENTS
	help
	  This option enables support for the ARM architected timer

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

config MCPM
	bool "Multi-Cluster Power Management"
	depends on CPU_V7 && SMP
	help
	  This option provides the common power management infrastructure
	  for (multi-)cluster based systems, such as big.LITTLE based
	  systems.

config BIG_LITTLE
	bool "big.LITTLE support (Experimental)"
	depends on CPU_V7 && SMP
	select MCPM
	help
	  This option enables support selections for the big.LITTLE
	  system architecture.

config BL_SWITCHER
	bool "big.LITTLE switcher support"
	depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
	select ARM_CPU_SUSPEND
	select CPU_PM
	help
	  The big.LITTLE "switcher" provides the core functionality to
	  transparently handle transition between a cluster of A15's
	  and a cluster of A7's in a big.LITTLE system.

config BL_SWITCHER_DUMMY_IF
	tristate "Simple big.LITTLE switcher user interface"
	depends on BL_SWITCHER && DEBUG_KERNEL
	help
	  This is a simple and dummy char dev interface to control
	  the big.LITTLE switcher core code.  It is meant for
	  debugging purposes only.

choice
	prompt "Memory split"
	depends on MMU
	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 PHYS_OFFSET if !MMU
	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"
	depends on SMP
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

config ARM_PSCI
	bool "Support for the ARM Power State Coordination Interface (PSCI)"
	depends on CPU_V7
	help
	  Say Y here if you want Linux to communicate with system firmware
	  implementing the PSCI specification for CPU-centric power
	  management operations described in ARM document number ARM DEN
	  0022A ("Power State Coordination Interface System Software on
	  ARM processors").

# The GPIO number here must be sorted by descending number. In case of
# a multiplatform kernel, we just want the highest value required by the
# selected platforms.
config ARCH_NR_GPIO
	int
	default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
	default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX
	default 392 if ARCH_U8500
	default 352 if ARCH_VT8500
	default 288 if ARCH_SUNXI
	default 264 if MACH_H4700
	default 0
	help
	  Maximum number of GPIOs in the system.

	  If unsure, leave the default value.

source kernel/Kconfig.preempt

config HZ_FIXED
	int
	default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
		ARCH_S5PV210 || ARCH_EXYNOS4
	default AT91_TIMER_HZ if ARCH_AT91
	default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
	default 0

choice
	depends on HZ_FIXED = 0
	prompt "Timer frequency"

config HZ_100
	bool "100 Hz"

config HZ_200
	bool "200 Hz"

config HZ_250
	bool "250 Hz"

config HZ_300
	bool "300 Hz"

config HZ_500
	bool "500 Hz"

config HZ_1000
	bool "1000 Hz"

endchoice

config HZ
	int
	default HZ_FIXED if HZ_FIXED != 0
	default 100 if HZ_100
	default 200 if HZ_200
	default 250 if HZ_250
	default 300 if HZ_300
	default 500 if HZ_500
	default 1000

config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

config THUMB2_KERNEL
	bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
	depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
	default y if CPU_THUMBONLY
	select AEABI
	select ARM_ASM_UNIFIED
	select ARM_UNWIND
	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 THUMB2_AVOID_R_ARM_THM_JUMP11
	bool "Work around buggy Thumb-2 short branch relocations in gas"
	depends on THUMB2_KERNEL && MODULES
	default y
	help
	  Various binutils versions can resolve Thumb-2 branches to
	  locally-defined, preemptible global symbols as short-range "b.n"
	  branch instructions.

	  This is a problem, because there's no guarantee the final
	  destination of the symbol, or any candidate locations for a
	  trampoline, are within range of the branch.  For this reason, the
	  kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
	  relocation in modules at all, and it makes little sense to add
	  support.

	  The symptom is that the kernel fails with an "unsupported
	  relocation" error when loading some modules.

	  Until fixed tools are available, passing
	  -fno-optimize-sibling-calls to gcc should prevent gcc generating
	  code which hits this problem, at the cost of a bit of extra runtime
	  stack usage in some cases.

	  The problem is described in more detail at:
	      https://bugs.launchpad.net/binutils-linaro/+bug/725126

	  Only Thumb-2 kernels are affected.

	  Unless you are sure your tools don't have this problem, say Y.

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 && !THUMB2_KERNEL
	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.

	  The seccomp filter system will not be available when this is
	  selected, since there is no way yet to sensibly distinguish
	  between calling conventions during filtering.

	  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 N.

config ARCH_HAS_HOLES_MEMORYMODEL
	bool

config ARCH_SPARSEMEM_ENABLE
	bool

config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

config ARCH_SELECT_MEMORY_MODEL
	def_bool ARCH_SPARSEMEM_ENABLE

config HAVE_ARCH_PFN_VALID
	def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM

config HIGHMEM
	bool "High Memory Support"
	depends on MMU
	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

config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
	depends on PERF_EVENTS
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

config SYS_SUPPORTS_HUGETLBFS
       def_bool y
       depends on ARM_LPAE

config HAVE_ARCH_TRANSPARENT_HUGEPAGE
       def_bool y
       depends on ARM_LPAE

config ARCH_WANT_GENERAL_HUGETLB
	def_bool y

source "mm/Kconfig"

config FORCE_MAX_ZONEORDER
	int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
	range 11 64 if ARCH_SHMOBILE_LEGACY
	default "12" if SOC_AM33XX
	default "9" if SA1111 || ARCH_EFM32
	default "11"
	help
	  The kernel memory allocator divides physically contiguous memory
	  blocks into "zones", where each zone is a power of two number of
	  pages.  This option selects the largest power of two that the kernel
	  keeps in the memory allocator.  If you need to allocate very large
	  blocks of physically contiguous memory, then you may need to
	  increase this value.

	  This config option is actually maximum order plus one. For example,
	  a value of 11 means that the largest free memory block is 2^10 pages.

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()"
	depends on MMU
	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.

config SECCOMP
	bool
	prompt "Enable seccomp to safely compute untrusted bytecode"
	---help---
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
	  and the task is only allowed to execute a few safe syscalls
	  defined by each seccomp mode.

config SWIOTLB
	def_bool y

config IOMMU_HELPER
	def_bool SWIOTLB

config XEN_DOM0
	def_bool y
	depends on XEN

config XEN
	bool "Xen guest support on ARM (EXPERIMENTAL)"
	depends on ARM && AEABI && OF
	depends on CPU_V7 && !CPU_V6
	depends on !GENERIC_ATOMIC64
	depends on MMU
	select ARCH_DMA_ADDR_T_64BIT
	select ARM_PSCI
	select SWIOTLB_XEN
	help
	  Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.

endmenu

menu "Boot options"

config USE_OF
	bool "Flattened Device Tree support"
	select IRQ_DOMAIN
	select OF
	select OF_EARLY_FLATTREE
	select OF_RESERVED_MEM
	help
	  Include support for flattened device tree machine descriptions.

config ATAGS
	bool "Support for the traditional ATAGS boot data passing" if USE_OF
	default y
	help
	  This is the traditional way of passing data to the kernel at boot
	  time. If you are solely relying on the flattened device tree (or
	  the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
	  to remove ATAGS support from your kernel binary.  If unsure,
	  leave this to y.

config DEPRECATED_PARAM_STRUCT
	bool "Provide old way to pass kernel parameters"
	depends on ATAGS
	help
	  This was deprecated in 2001 and announced to live on for 5 years.
	  Some old boot loaders still use this way.

# 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
	depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
	help
	  Say Y here if you intend to execute your compressed kernel image
	  (zImage) directly from ROM or flash.  If unsure, say N.

choice
	prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
	depends on ZBOOT_ROM && ARCH_SH7372
	default ZBOOT_ROM_NONE
	help
	  Include experimental SD/MMC loading code in the ROM-able zImage.
	  With this enabled it is possible to write the ROM-able zImage
	  kernel image to an MMC or SD card and boot the kernel straight
	  from the reset vector. At reset the processor Mask ROM will load
	  the first part of the ROM-able zImage which in turn loads the
	  rest the kernel image to RAM.

config ZBOOT_ROM_NONE
	bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
	help
	  Do not load image from SD or MMC

config ZBOOT_ROM_MMCIF
	bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
	help
	  Load image from MMCIF hardware block.

config ZBOOT_ROM_SH_MOBILE_SDHI
	bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
	help
	  Load image from SDHI hardware block

endchoice

config ARM_APPENDED_DTB
	bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
	depends on OF
	help
	  With this option, the boot code will look for a device tree binary
	  (DTB) appended to zImage
	  (e.g. cat zImage <filename>.dtb > zImage_w_dtb).

	  This is meant as a backward compatibility convenience for those
	  systems with a bootloader that can't be upgraded to accommodate
	  the documented boot protocol using a device tree.

	  Beware that there is very little in terms of protection against
	  this option being confused by leftover garbage in memory that might
	  look like a DTB header after a reboot if no actual DTB is appended
	  to zImage.  Do not leave this option active in a production kernel
	  if you don't intend to always append a DTB.  Proper passing of the
	  location into r2 of a bootloader provided DTB is always preferable
	  to this option.

config ARM_ATAG_DTB_COMPAT
	bool "Supplement the appended DTB with traditional ATAG information"
	depends on ARM_APPENDED_DTB
	help
	  Some old bootloaders can't be updated to a DTB capable one, yet
	  they provide ATAGs with memory configuration, the ramdisk address,
	  the kernel cmdline string, etc.  Such information is dynamically
	  provided by the bootloader and can't always be stored in a static
	  DTB.  To allow a device tree enabled kernel to be used with such
	  bootloaders, this option allows zImage to extract the information
	  from the ATAG list and store it at run time into the appended DTB.

choice
	prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
	default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER

config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
	bool "Use bootloader kernel arguments if available"
	help
	  Uses the command-line options passed by the boot loader instead of
	  the device tree bootargs property. If the boot loader doesn't provide
	  any, the device tree bootargs property will be used.

config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
	bool "Extend with bootloader kernel arguments"
	help
	  The command-line arguments provided by the boot loader will be
	  appended to the the device tree bootargs property.

endchoice

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).

choice
	prompt "Kernel command line type" if CMDLINE != ""
	default CMDLINE_FROM_BOOTLOADER
	depends on ATAGS

config CMDLINE_FROM_BOOTLOADER
	bool "Use bootloader kernel arguments if available"
	help
	  Uses the command-line options passed by the boot loader. If
	  the boot loader doesn't provide any, the default kernel command
	  string provided in CMDLINE will be used.

config CMDLINE_EXTEND
	bool "Extend bootloader kernel arguments"
	help
	  The command-line arguments provided by the boot loader will be
	  appended to the default kernel command string.

config CMDLINE_FORCE
	bool "Always use the default kernel command string"
	help
	  Always use the default kernel command string, even if the boot
	  loader passes other arguments to the kernel.
	  This is useful if you cannot or don't want to change the
	  command-line options your boot loader passes to the kernel.
endchoice

config XIP_KERNEL
	bool "Kernel Execute-In-Place from ROM"
	depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
	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 (!SMP || PM_SLEEP_SMP)
	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.

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

config CRASH_DUMP
	bool "Build kdump crash kernel (EXPERIMENTAL)"
	help
	  Generate crash dump after being started by kexec. This should
	  be normally only set in special crash dump kernels which are
	  loaded in the main kernel with kexec-tools into a specially
	  reserved region and then later executed after a crash by
	  kdump/kexec. The crash dump kernel must be compiled to a
	  memory address not used by the main kernel

	  For more details see Documentation/kdump/kdump.txt

config AUTO_ZRELADDR
	bool "Auto calculation of the decompressed kernel image address"
	help
	  ZRELADDR is the physical address where the decompressed kernel
	  image will be placed. If AUTO_ZRELADDR is selected, the address
	  will be determined at run-time by masking the current IP with
	  0xf8000000. This assumes the zImage being placed in the first 128MB
	  from start of memory.

endmenu

menu "CPU Power Management"

if ARCH_HAS_CPUFREQ
source "drivers/cpufreq/Kconfig"
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) && !THUMB2_KERNEL
	---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
	---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_V6K || 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.

config KERNEL_MODE_NEON
	bool "Support for NEON in kernel mode"
	depends on NEON && AEABI
	help
	  Say Y to include support for NEON in kernel mode.

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
	depends on !ARCH_S5PC100
	depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
		CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
	def_bool y

config ARM_CPU_SUSPEND
	def_bool PM_SLEEP

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"

source "arch/arm/kvm/Kconfig"