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
|
menu "Command line interface"
config CMDLINE
bool "Support U-Boot commands"
default y
help
Enable U-Boot's command-line functions. This provides a means
to enter commands into U-Boot for a wide variety of purposes. It
also allows scripts (containing commands) to be executed.
Various commands and command categorys can be indivdually enabled.
Depending on the number of commands enabled, this can add
substantially to the size of U-Boot.
config HUSH_PARSER
bool "Use hush shell"
depends on CMDLINE
help
This option enables the "hush" shell (from Busybox) as command line
interpreter, thus enabling powerful command line syntax like
if...then...else...fi conditionals or `&&' and '||'
constructs ("shell scripts").
If disabled, you get the old, much simpler behaviour with a somewhat
smaller memory footprint.
config CMDLINE_EDITING
bool "Enable command line editing"
depends on CMDLINE
default y
help
Enable editing and History functions for interactive command line
input operations
config AUTO_COMPLETE
bool "Enable auto complete using TAB"
depends on CMDLINE
default y
help
Enable auto completion of commands using TAB.
config SYS_LONGHELP
bool "Enable long help messages"
depends on CMDLINE
default y if CMDLINE
help
Defined when you want long help messages included
Do not set this option when short of memory.
config SYS_PROMPT
string "Shell prompt"
default "=> "
help
This string is displayed in the command line to the left of the
cursor.
menu "Autoboot options"
config AUTOBOOT
bool "Autoboot"
default y
help
This enables the autoboot. See doc/README.autoboot for detail.
config AUTOBOOT_KEYED
bool "Stop autobooting via specific input key / string"
default n
help
This option enables stopping (aborting) of the automatic
boot feature only by issuing a specific input key or
string. If not enabled, any input key will abort the
U-Boot automatic booting process and bring the device
to the U-Boot prompt for user input.
config AUTOBOOT_PROMPT
string "Autoboot stop prompt"
depends on AUTOBOOT_KEYED
default "Autoboot in %d seconds\\n"
help
This string is displayed before the boot delay selected by
CONFIG_BOOTDELAY starts. If it is not defined there is no
output indicating that autoboot is in progress.
Note that this define is used as the (only) argument to a
printf() call, so it may contain '%' format specifications,
provided that it also includes, sepearated by commas exactly
like in a printf statement, the required arguments. It is
the responsibility of the user to select only such arguments
that are valid in the given context.
config AUTOBOOT_ENCRYPTION
bool "Enable encryption in autoboot stopping"
depends on AUTOBOOT_KEYED
default n
config AUTOBOOT_DELAY_STR
string "Delay autobooting via specific input key / string"
depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
help
This option delays the automatic boot feature by issuing
a specific input key or string. If CONFIG_AUTOBOOT_DELAY_STR
or the environment variable "bootdelaykey" is specified
and this string is received from console input before
autoboot starts booting, U-Boot gives a command prompt. The
U-Boot prompt will time out if CONFIG_BOOT_RETRY_TIME is
used, otherwise it never times out.
config AUTOBOOT_STOP_STR
string "Stop autobooting via specific input key / string"
depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
help
This option enables stopping (aborting) of the automatic
boot feature only by issuing a specific input key or
string. If CONFIG_AUTOBOOT_STOP_STR or the environment
variable "bootstopkey" is specified and this string is
received from console input before autoboot starts booting,
U-Boot gives a command prompt. The U-Boot prompt never
times out, even if CONFIG_BOOT_RETRY_TIME is used.
config AUTOBOOT_KEYED_CTRLC
bool "Enable Ctrl-C autoboot interruption"
depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
default n
help
This option allows for the boot sequence to be interrupted
by ctrl-c, in addition to the "bootdelaykey" and "bootstopkey".
Setting this variable provides an escape sequence from the
limited "password" strings.
config AUTOBOOT_STOP_STR_SHA256
string "Stop autobooting via SHA256 encrypted password"
depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION
help
This option adds the feature to only stop the autobooting,
and therefore boot into the U-Boot prompt, when the input
string / password matches a values that is encypted via
a SHA256 hash and saved in the environment.
endmenu
source "cmd/fastboot/Kconfig"
config BUILD_BIN2C
bool
comment "Commands"
menu "Info commands"
config CMD_BDI
bool "bdinfo"
default y
help
Print board info
config CMD_CONFIG
bool "config"
select BUILD_BIN2C
default SANDBOX
help
Print ".config" contents.
If this option is enabled, the ".config" file contents are embedded
in the U-Boot image and can be printed on the console by the "config"
command. This provides information of which options are enabled on
the running U-Boot.
config CMD_CONSOLE
bool "coninfo"
default y
help
Print console devices and information.
config CMD_CPU
bool "cpu"
help
Print information about available CPUs. This normally shows the
number of CPUs, type (e.g. manufacturer, architecture, product or
internal name) and clock frequency. Other information may be
available depending on the CPU driver.
config CMD_LICENSE
bool "license"
select BUILD_BIN2C
help
Print GPL license text
config CMD_REGINFO
bool "reginfo"
depends on PPC
help
Register dump
endmenu
menu "Boot commands"
config CMD_BOOTD
bool "bootd"
default y
help
Run the command stored in the environment "bootcmd", i.e.
"bootd" does the same thing as "run bootcmd".
config CMD_BOOTM
bool "bootm"
default y
help
Boot an application image from the memory.
config CMD_BOOTZ
bool "bootz"
help
Boot the Linux zImage
config CMD_BOOTI
bool "booti"
depends on ARM64
default y
help
Boot an AArch64 Linux Kernel image from memory.
config CMD_BOOTEFI
bool "bootefi"
depends on EFI_LOADER
default y
help
Boot an EFI image from memory.
config CMD_BOOTEFI_HELLO_COMPILE
bool "Compile a standard EFI hello world binary for testing"
depends on CMD_BOOTEFI && (ARM || X86)
default y
help
This compiles a standard EFI hello world application with U-Boot so
that it can be used with the test/py testing framework. This is useful
for testing that EFI is working at a basic level, and for bringing
up EFI support on a new architecture.
No additional space will be required in the resulting U-Boot binary
when this option is enabled.
config CMD_BOOTEFI_HELLO
bool "Allow booting a standard EFI hello world for testing"
depends on CMD_BOOTEFI_HELLO_COMPILE
help
This adds a standard EFI hello world application to U-Boot so that
it can be used with the 'bootefi hello' command. This is useful
for testing that EFI is working at a basic level, and for bringing
up EFI support on a new architecture.
source lib/efi_selftest/Kconfig
config CMD_BOOTMENU
bool "bootmenu"
select MENU
help
Add an ANSI terminal boot menu command.
config CMD_ELF
bool "bootelf, bootvx"
default y
help
Boot an ELF/vxWorks image from the memory.
config CMD_FDT
bool "Flattened Device Tree utility commands"
default y
depends on OF_LIBFDT
help
Do FDT related setup before booting into the Operating System.
config CMD_GO
bool "go"
default y
help
Start an application at a given address.
config CMD_RUN
bool "run"
default y
help
Run the command in the given environment variable.
config CMD_IMI
bool "iminfo"
default y
help
Print header information for application image.
config CMD_IMLS
bool "imls"
help
List all images found in flash
config CMD_XIMG
bool "imxtract"
default y
help
Extract a part of a multi-image.
config CMD_POWEROFF
bool "poweroff"
help
Poweroff/Shutdown the system
config CMD_SPL
bool "spl export - Export boot information for Falcon boot"
depends on SPL
help
Falcon mode allows booting directly from SPL into an Operating
System such as Linux, thus skipping U-Boot proper. See
doc/README.falcon for full information about how to use this
command.
config CMD_SPL_NAND_OFS
hex "Offset of OS command line args for Falcon-mode NAND boot"
depends on CMD_SPL
default 0
help
This provides the offset of the command line arguments for Linux
when booting from NAND in Falcon mode. See doc/README.falcon
for full information about how to use this option (and also see
board/gateworks/gw_ventana/README for an example).
config CMD_SPL_WRITE_SIZE
hex "Size of argument area"
depends on CMD_SPL
default 0x2000
help
This provides the size of the command-line argument area in NAND
flash used by Falcon-mode boot. See the documentation until CMD_SPL
for detail.
config CMD_FITUPD
bool "fitImage update command"
help
Implements the 'fitupd' command, which allows to automatically
store software updates present on a TFTP server in NOR Flash
config CMD_THOR_DOWNLOAD
bool "thor - TIZEN 'thor' download"
help
Implements the 'thor' download protocol. This is a way of
downloading a software update over USB from an attached host.
There is no documentation about this within the U-Boot source code
but you should be able to find something on the interwebs.
config CMD_ZBOOT
bool "zboot - x86 boot command"
help
With x86 machines it is common to boot a bzImage file which
contains both a kernel and a setup.bin file. The latter includes
configuration information from the dark ages which x86 boards still
need to pick things out of.
Consider using FIT in preference to this since it supports directly
booting both 32- and 64-bit kernels, as well as secure boot.
Documentation is available in doc/uImage.FIT/x86-fit-boot.txt
endmenu
menu "Environment commands"
config CMD_ASKENV
bool "ask for env variable"
help
Ask for environment variable
config CMD_EXPORTENV
bool "env export"
default y
help
Export environments.
config CMD_IMPORTENV
bool "env import"
default y
help
Import environments.
config CMD_EDITENV
bool "editenv"
default y
help
Edit environment variable.
config CMD_GREPENV
bool "search env"
help
Allow for searching environment variables
config CMD_SAVEENV
bool "saveenv"
default y
help
Save all environment variables into the compiled-in persistent
storage.
config CMD_ENV_EXISTS
bool "env exists"
default y
help
Check if a variable is defined in the environment for use in
shell scripting.
config CMD_ENV_CALLBACK
bool "env callbacks - print callbacks and their associated variables"
help
Some environment variable have callbacks defined by
U_BOOT_ENV_CALLBACK. These are called when the variable changes.
For example changing "baudrate" adjust the serial baud rate. This
command lists the currently defined callbacks.
config CMD_ENV_FLAGS
bool "env flags -print variables that have non-default flags"
help
Some environment variables have special flags that control their
behaviour. For example, serial# can only be written once and cannot
be deleted. This command shows the variables that have special
flags.
endmenu
menu "Memory commands"
config CMD_BINOP
bool "binop"
help
Compute binary operations (xor, or, and) of byte arrays of arbitrary
size from memory and store the result in memory or the environment.
config CMD_CRC32
bool "crc32"
select HASH
default y
help
Compute CRC32.
config CRC32_VERIFY
bool "crc32 -v"
depends on CMD_CRC32
help
Add -v option to verify data against a crc32 checksum.
config CMD_EEPROM
bool "eeprom - EEPROM subsystem"
help
(deprecated, needs conversion to driver model)
Provides commands to read and write EEPROM (Electrically Erasable
Programmable Read Only Memory) chips that are connected over an
I2C bus.
config CMD_EEPROM_LAYOUT
bool "Enable layout-aware eeprom commands"
depends on CMD_EEPROM
help
(deprecated, needs conversion to driver model)
When enabled, additional eeprom sub-commands become available.
eeprom print - prints the contents of the eeprom in a human-readable
way (eeprom layout fields, and data formatted to be fit for human
consumption).
eeprom update - allows user to update eeprom fields by specifying
the field name, and providing the new data in a human readable format
(same format as displayed by the eeprom print command).
Both commands can either auto detect the layout, or be told which
layout to use.
Feature API:
__weak int parse_layout_version(char *str)
- override to provide your own layout name parsing
__weak void __eeprom_layout_assign(struct eeprom_layout *layout,
int layout_version);
- override to setup the layout metadata based on the version
__weak int eeprom_layout_detect(unsigned char *data)
- override to provide your own algorithm for detecting layout
version
eeprom_field.c
- contains various printing and updating functions for common
types of eeprom fields. Can be used for defining
custom layouts.
config EEPROM_LAYOUT_HELP_STRING
string "Tells user what layout names are supported"
depends on CMD_EEPROM_LAYOUT
default "<not defined>"
help
Help printed with the LAYOUT VERSIONS part of the 'eeprom'
command's help.
config LOOPW
bool "loopw"
help
Infinite write loop on address range
config CMD_MD5SUM
bool "md5sum"
default n
select MD5
help
Compute MD5 checksum.
config MD5SUM_VERIFY
bool "md5sum -v"
default n
depends on CMD_MD5SUM
help
Add -v option to verify data against an MD5 checksum.
config CMD_MEMINFO
bool "meminfo"
help
Display memory information.
config CMD_MEMORY
bool "md, mm, nm, mw, cp, cmp, base, loop"
default y
help
Memory commands.
md - memory display
mm - memory modify (auto-incrementing address)
nm - memory modify (constant address)
mw - memory write (fill)
cp - memory copy
cmp - memory compare
base - print or set address offset
loop - initialize loop on address range
config CMD_MEMTEST
bool "memtest"
help
Simple RAM read/write test.
if CMD_MEMTEST
config SYS_ALT_MEMTEST
bool "Alternative test"
help
Use a more complete alternative memory test.
endif
config CMD_MX_CYCLIC
bool "mdc, mwc"
help
mdc - memory display cyclic
mwc - memory write cyclic
config CMD_SHA1SUM
bool "sha1sum"
select SHA1
help
Compute SHA1 checksum.
config SHA1SUM_VERIFY
bool "sha1sum -v"
depends on CMD_SHA1SUM
help
Add -v option to verify data against a SHA1 checksum.
config CMD_STRINGS
bool "strings - display strings in memory"
help
This works similarly to the Unix 'strings' command except that it
works with a memory range. String of printable characters found
within the range are displayed. The minimum number of characters
for a sequence to be considered a string can be provided.
endmenu
menu "Compression commands"
config CMD_LZMADEC
bool "lzmadec"
default y if CMD_BOOTI
select LZMA
help
Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm)
image from memory.
config CMD_UNZIP
bool "unzip"
default y if CMD_BOOTI
help
Uncompress a zip-compressed memory region.
config CMD_ZIP
bool "zip"
help
Compress a memory region with zlib deflate method.
endmenu
menu "Device access commands"
config CMD_ARMFLASH
#depends on FLASH_CFI_DRIVER
bool "armflash"
help
ARM Ltd reference designs flash partition access
config CMD_ADC
bool "adc - Access Analog to Digital Converters info and data"
select ADC
select DM_REGULATOR
help
Shows ADC device info and permit printing one-shot analog converted
data from a named Analog to Digital Converter.
config CMD_CLK
bool "clk - Show clock frequencies"
help
(deprecated)
Shows clock frequences by calling a sock_clk_dump() hook function.
This is depreated in favour of using the CLK uclass and accessing
clock values from associated drivers. However currently no command
exists for this.
config CMD_DEMO
bool "demo - Demonstration commands for driver model"
depends on DM
help
Provides a 'demo' command which can be used to play around with
driver model. To use this properly you will need to enable one or
both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
Otherwise you will always get an empty list of devices. The demo
devices are defined in the sandbox device tree, so the easiest
option is to use sandbox and pass the -d point to sandbox's
u-boot.dtb file.
config CMD_DFU
bool "dfu"
select DFU
help
Enables the command "dfu" which is used to have U-Boot create a DFU
class device via USB. This command requires that the "dfu_alt_info"
environment variable be set and define the alt settings to expose to
the host.
config CMD_DM
bool "dm - Access to driver model information"
depends on DM
default y
help
Provides access to driver model data structures and information,
such as a list of devices, list of uclasses and the state of each
device (e.g. activated). This is not required for operation, but
can be useful to see the state of driver model for debugging or
interest.
config CMD_FDC
bool "fdcboot - Boot from floppy device"
help
The 'fdtboot' command allows booting an image from a floppy disk.
config CMD_FLASH
bool "flinfo, erase, protect"
default y
help
NOR flash support.
flinfo - print FLASH memory information
erase - FLASH memory
protect - enable or disable FLASH write protection
config CMD_FPGA
bool "fpga"
depends on FPGA
default y
help
FPGA support.
config CMD_FPGA_LOADBP
bool "fpga loadbp - load partial bitstream (Xilinx only)"
depends on CMD_FPGA
help
Supports loading an FPGA device from a bitstream buffer containing
a partial bitstream.
config CMD_FPGA_LOADFS
bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
depends on CMD_FPGA
help
Supports loading an FPGA device from a FAT filesystem.
config CMD_FPGA_LOADMK
bool "fpga loadmk - load bitstream from image"
depends on CMD_FPGA
help
Supports loading an FPGA device from a image generated by mkimage.
config CMD_FPGA_LOADP
bool "fpga loadp - load partial bitstream"
depends on CMD_FPGA
help
Supports loading an FPGA device from a bitstream buffer containing
a partial bitstream.
config CMD_FPGAD
bool "fpgad - dump FPGA registers"
help
(legacy, needs conversion to driver model)
Provides a way to dump FPGA registers by calling the board-specific
fpga_get_reg() function. This functions similarly to the 'md'
command.
config CMD_FUSE
bool "fuse - support for the fuse subssystem"
help
(deprecated - needs conversion to driver model)
This allows reading, sensing, programming or overriding fuses
which control the behaviour of the device. The command uses the
fuse_...() API.
config CMD_GPIO
bool "gpio"
help
GPIO support.
config CMD_GPT
bool "GPT (GUID Partition Table) command"
select PARTITION_UUIDS
select EFI_PARTITION
select HAVE_BLOCK_DEVICE
imply RANDOM_UUID
help
Enable the 'gpt' command to ready and write GPT style partition
tables.
config RANDOM_UUID
bool "GPT Random UUID generation"
select LIB_UUID
help
Enable the generation of partitions with random UUIDs if none
are provided.
config CMD_GPT_RENAME
bool "GPT partition renaming commands"
depends on CMD_GPT
help
Enables the 'gpt' command to interchange names on two GPT
partitions via the 'gpt swap' command or to rename single
partitions via the 'rename' command.
config CMD_IDE
bool "ide - Support for IDE drivers"
select IDE
help
Provides an 'ide' command which allows accessing the IDE drive,
reseting the IDE interface, printing the partition table and
geting device info. It also enables the 'diskboot' command which
permits booting from an IDE drive.
config CMD_IO
bool "io - Support for performing I/O accesses"
help
Provides an 'iod' command to display I/O space and an 'iow' command
to write values to the I/O space. This can be useful for manually
checking the state of devices during boot when debugging device
drivers, etc.
config CMD_IOTRACE
bool "iotrace - Support for tracing I/O activity"
help
Provides an 'iotrace' command which supports recording I/O reads and
writes in a trace buffer in memory . It also maintains a checksum
of the trace records (even if space is exhausted) so that the
sequence of I/O accesses can be verified.
When debugging drivers it is useful to see what I/O accesses were
done and in what order.
Even if the individual accesses are of little interest it can be
useful to verify that the access pattern is consistent each time
an operation is performed. In this case a checksum can be used to
characterise the operation of a driver. The checksum can be compared
across different runs of the operation to verify that the driver is
working properly.
In particular, when performing major refactoring of the driver, where
the access pattern should not change, the checksum provides assurance
that the refactoring work has not broken the driver.
This works by sneaking into the io.h heder for an architecture and
redirecting I/O accesses through iotrace's tracing mechanism.
For now no commands are provided to examine the trace buffer. The
format is fairly simple, so 'md' is a reasonable substitute.
Note: The checksum feature is only useful for I/O regions where the
contents do not change outside of software control. Where this is not
suitable you can fall back to manually comparing the addresses. It
might be useful to enhance tracing to only checksum the accesses and
not the data read/written.
config CMD_I2C
bool "i2c"
help
I2C support.
config CMD_LOADB
bool "loadb"
default y
help
Load a binary file over serial line.
config CMD_LOADS
bool "loads"
default y
help
Load an S-Record file over serial line
config CMD_MMC
bool "mmc"
help
MMC memory mapped support.
config CMD_NAND
bool "nand"
default y if NAND_SUNXI
help
NAND support.
if CMD_NAND
config CMD_NAND_TRIMFFS
bool "nand write.trimffs"
default y if ARCH_SUNXI
help
Allows one to skip empty pages when flashing something on a NAND.
config CMD_NAND_LOCK_UNLOCK
bool "nand lock/unlock"
help
NAND locking support.
config CMD_NAND_TORTURE
bool "nand torture"
help
NAND torture support.
endif # CMD_NAND
config CMD_NVME
bool "nvme"
depends on NVME
default y if NVME
help
NVM Express device support
config CMD_MMC_SPI
bool "mmc_spi - Set up MMC SPI device"
help
Provides a way to set up an MMC (Multimedia Card) SPI (Serial
Peripheral Interface) device. The device provides a means of
accessing an MMC device via SPI using a single data line, limited
to 20MHz. It is useful since it reduces the amount of protocol code
required.
config CMD_ONENAND
bool "onenand - access to onenand device"
help
OneNAND is a brand of NAND ('Not AND' gate) flash which provides
various useful features. This command allows reading, writing,
and erasing blocks. It allso provides a way to show and change
bad blocks, and test the device.
config CMD_PART
bool "part"
select PARTITION_UUIDS
select HAVE_BLOCK_DEVICE
help
Read and display information about the partition table on
various media.
config CMD_PCI
bool "pci - Access PCI devices"
help
Provide access to PCI (Peripheral Interconnect Bus), a type of bus
used on some devices to allow the CPU to communicate with its
peripherals. Sub-commands allow bus enumeration, displaying and
changing configuration space and a few other features.
config CMD_PCMCIA
bool "pinit - Set up PCMCIA device"
help
Provides a means to initialise a PCMCIA (Personal Computer Memory
Card International Association) device. This is an old standard from
about 1990. These devices are typically removable memory or network
cards using a standard 68-pin connector.
config CMD_READ
bool "read - Read binary data from a partition"
help
Provides low-level access to the data in a partition.
config CMD_REMOTEPROC
bool "remoteproc"
depends on REMOTEPROC
help
Support for Remote Processor control
config CMD_SATA
bool "sata - Access SATA subsystem"
select SATA
help
SATA (Serial Advanced Technology Attachment) is a serial bus
standard for connecting to hard drives and other storage devices.
This command provides information about attached devices and allows
reading, writing and other operations.
SATA replaces PATA (originally just ATA), which stands for Parallel AT
Attachment, where AT refers to an IBM AT (Advanced Technology)
computer released in 1984.
config CMD_SAVES
bool "saves - Save a file over serial in S-Record format"
help
Provides a way to save a binary file using the Motorola S-Record
format over the serial line.
config CMD_SCSI
bool "scsi - Access to SCSI devices"
default y if SCSI
help
This provides a 'scsi' command which provides access to SCSI (Small
Computer System Interface) devices. The command provides a way to
scan the bus, reset the bus, read and write data and get information
about devices.
config CMD_SDRAM
bool "sdram - Print SDRAM configuration information"
help
Provides information about attached SDRAM. This assumed that the
SDRAM has an EEPROM with information that can be read using the
I2C bus. This is only available on some boards.
config CMD_SF
bool "sf"
help
SPI Flash support
config CMD_SF_TEST
bool "sf test - Allow testing of SPI flash"
help
Provides a way to test that SPI flash is working correctly. The
test is destructive, in that an area of SPI flash must be provided
for the test to use. Performance information is also provided,
measuring the performance of reading, writing and erasing in
Mbps (Million Bits Per Second). This value should approximately
equal the SPI bus speed for a single-bit-wide SPI bus, assuming
everything is working properly.
config CMD_SPI
bool "sspi"
help
SPI utility command.
config CMD_TSI148
bool "tsi148 - Command to access tsi148 device"
help
This provides various sub-commands to initialise and configure the
Turndra tsi148 device. See the command help for full details.
config CMD_UNIVERSE
bool "universe - Command to set up the Turndra Universe controller"
help
This allows setting up the VMEbus provided by this controller.
See the command help for full details.
config CMD_USB
bool "usb"
select HAVE_BLOCK_DEVICE
help
USB support.
config CMD_USB_SDP
bool "sdp"
select USB_FUNCTION_SDP
help
Enables the command "sdp" which is used to have U-Boot emulating the
Serial Download Protocol (SDP) via USB.
config CMD_ROCKUSB
bool "rockusb"
depends on USB_FUNCTION_ROCKUSB
help
Rockusb protocol is widely used by Rockchip SoC based devices. It can
read/write info, image to/from devices. This enable rockusb command
support to communication with rockusb device. for more detail about
this command, please read doc/README.rockusb.
config CMD_USB_MASS_STORAGE
bool "UMS usb mass storage"
select USB_FUNCTION_MASS_STORAGE
help
USB mass storage support
endmenu
menu "Shell scripting commands"
config CMD_ECHO
bool "echo"
default y
help
Echo args to console
config CMD_ITEST
bool "itest"
default y
help
Return true/false on integer compare.
config CMD_SOURCE
bool "source"
default y
help
Run script from memory
config CMD_SETEXPR
bool "setexpr"
default y
help
Evaluate boolean and math expressions and store the result in an env
variable.
Also supports loading the value at a memory location into a variable.
If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
endmenu
if NET
menuconfig CMD_NET
bool "Network commands"
default y
if CMD_NET
config CMD_BOOTP
bool "bootp"
default y
help
bootp - boot image via network using BOOTP/TFTP protocol
config CMD_DHCP
bool "dhcp"
depends on CMD_BOOTP
help
Boot image via network using DHCP/TFTP protocol
config BOOTP_BOOTPATH
bool "Request & store 'rootpath' from BOOTP/DHCP server"
default y
depends on CMD_BOOTP
help
Even though the config is called BOOTP_BOOTPATH, it stores the
path in the variable 'rootpath'.
config BOOTP_DNS
bool "Request & store 'dnsip' from BOOTP/DHCP server"
default y
depends on CMD_BOOTP
help
The primary DNS server is stored as 'dnsip'. If two servers are
returned, you must set BOOTP_DNS2 to store that second server IP
also.
config BOOTP_DNS2
bool "Store 'dnsip2' from BOOTP/DHCP server"
depends on BOOTP_DNS
help
If a DHCP client requests the DNS server IP from a DHCP server,
it is possible that more than one DNS serverip is offered to the
client. If CONFIG_BOOTP_DNS2 is enabled, the secondary DNS
server IP will be stored in the additional environment
variable "dnsip2". The first DNS serverip is always
stored in the variable "dnsip", when BOOTP_DNS is defined.
config BOOTP_GATEWAY
bool "Request & store 'gatewayip' from BOOTP/DHCP server"
default y
depends on CMD_BOOTP
config BOOTP_HOSTNAME
bool "Request & store 'hostname' from BOOTP/DHCP server"
default y
depends on CMD_BOOTP
help
The name may or may not be qualified with the local domain name.
config BOOTP_SUBNETMASK
bool "Request & store 'netmask' from BOOTP/DHCP server"
default y
depends on CMD_BOOTP
config BOOTP_NTPSERVER
bool "Request & store 'ntpserverip' from BOOTP/DHCP server"
depends on CMD_BOOTP
config BOOTP_PXE
bool "Send PXE client arch to BOOTP/DHCP server"
default y
depends on CMD_BOOTP && CMD_PXE
help
Supported for ARM, ARM64, and x86 for now.
config BOOTP_PXE_CLIENTARCH
hex
depends on BOOTP_PXE
default 0x16 if ARM64
default 0x15 if ARM
default 0 if X86
config BOOTP_VCI_STRING
string
depends on CMD_BOOTP
default "U-Boot.armv7" if CPU_V7A || CPU_V7M || CPU_V7R
default "U-Boot.armv8" if ARM64
default "U-Boot.arm" if ARM
default "U-Boot"
config CMD_TFTPBOOT
bool "tftpboot"
default y
help
tftpboot - boot image via network using TFTP protocol
config CMD_TFTPPUT
bool "tftp put"
depends on CMD_TFTPBOOT
help
TFTP put command, for uploading files to a server
config CMD_TFTPSRV
bool "tftpsrv"
depends on CMD_TFTPBOOT
help
Act as a TFTP server and boot the first received file
config NET_TFTP_VARS
bool "Control TFTP timeout and count through environment"
depends on CMD_TFTPBOOT
default y
help
If set, allows controlling the TFTP timeout through the
environment variable tftptimeout, and the TFTP maximum
timeout count through the variable tftptimeoutcountmax.
If unset, timeout and maximum are hard-defined as 1 second
and 10 timouts per TFTP transfer.
config CMD_RARP
bool "rarpboot"
help
Boot image via network using RARP/TFTP protocol
config CMD_NFS
bool "nfs"
default y
help
Boot image via network using NFS protocol.
config CMD_MII
bool "mii"
help
Enable MII utility commands.
config CMD_PING
bool "ping"
help
Send ICMP ECHO_REQUEST to network host
config CMD_CDP
bool "cdp"
help
Perform CDP network configuration
config CMD_SNTP
bool "sntp"
help
Synchronize RTC via network
config CMD_DNS
bool "dns"
help
Lookup the IP of a hostname
config CMD_LINK_LOCAL
bool "linklocal"
help
Acquire a network IP address using the link-local protocol
endif
config CMD_ETHSW
bool "ethsw"
help
Allow control of L2 Ethernet switch commands. These are supported
by the vsc9953 Ethernet driver at present. Sub-commands allow
operations such as enabling / disabling a port and
viewing/maintaining the filtering database (FDB)
config CMD_PXE
bool "pxe"
select MENU
help
Boot image via network using PXE protocol
endif
menu "Misc commands"
config CMD_BMP
bool "Enable 'bmp' command"
depends on LCD || DM_VIDEO || VIDEO
help
This provides a way to obtain information about a BMP-format iamge
and to display it. BMP (which presumably stands for BitMaP) is a
file format defined by Microsoft which supports images of various
depths, formats and compression methods. Headers on the file
determine the formats used. This command can be used by first loading
the image into RAM, then using this command to look at it or display
it.
config CMD_BSP
bool "Enable board-specific commands"
help
(deprecated: instead, please define a Kconfig option for each command)
Some boards have board-specific commands which are only enabled
during developemnt and need to be turned off for production. This
option provides a way to control this. The commands that are enabled
vary depending on the board.
config CMD_BKOPS_ENABLE
bool "mmc bkops enable"
depends on CMD_MMC
default n
help
Enable command for setting manual background operations handshake
on a eMMC device. The feature is optionally available on eMMC devices
conforming to standard >= 4.41.
config CMD_BLOCK_CACHE
bool "blkcache - control and stats for block cache"
depends on BLOCK_CACHE
default y if BLOCK_CACHE
help
Enable the blkcache command, which can be used to control the
operation of the cache functions.
This is most useful when fine-tuning the operation of the cache
during development, but also allows the cache to be disabled when
it might hurt performance (e.g. when using the ums command).
config CMD_CACHE
bool "icache or dcache"
help
Enable the "icache" and "dcache" commands
config CMD_DISPLAY
bool "Enable the 'display' command, for character displays"
help
(this needs porting to driver model)
This enables the 'display' command which allows a string to be
displayed on a simple board-specific display. Implement
display_putc() to use it.
config CMD_LED
bool "led"
default y if LED
help
Enable the 'led' command which allows for control of LEDs supported
by the board. The LEDs can be listed with 'led list' and controlled
with led on/off/togle/blink. Any LED drivers can be controlled with
this command, e.g. led_gpio.
config CMD_DATE
bool "date"
default y if DM_RTC
help
Enable the 'date' command for getting/setting the time/date in RTC
devices.
config CMD_TIME
bool "time"
help
Run commands and summarize execution time.
config CMD_GETTIME
bool "gettime - read elapsed time"
help
Enable the 'gettime' command which reads the elapsed time since
U-Boot started running. This shows the time in seconds and
milliseconds. See also the 'bootstage' command which provides more
flexibility for boot timing.
# TODO: rename to CMD_SLEEP
config CMD_MISC
bool "sleep"
default y
help
Delay execution for some time
config CMD_TIMER
bool "timer"
help
Access the system timer.
config CMD_SOUND
bool "sound"
depends on SOUND
help
This provides basic access to the U-Boot's sound support. The main
feature is to play a beep.
sound init - set up sound system
sound play - play a sound
config CMD_QFW
bool "qfw"
select QFW
help
This provides access to the QEMU firmware interface. The main
feature is to allow easy loading of files passed to qemu-system
via -kernel / -initrd
source "cmd/mvebu/Kconfig"
config CMD_TERMINAL
bool "terminal - provides a way to attach a serial terminal"
help
Provides a 'cu'-like serial terminal command. This can be used to
access other serial ports from the system console. The terminal
is very simple with no special processing of characters. As with
cu, you can press ~. (tilde followed by period) to exit.
config CMD_UUID
bool "uuid, guid - generation of unique IDs"
select LIB_UUID
help
This enables two commands:
uuid - generate random Universally Unique Identifier
guid - generate Globally Unique Identifier based on random UUID
The two commands are very similar except for the endianness of the
output.
endmenu
source "cmd/ti/Kconfig"
config CMD_BOOTSTAGE
bool "Enable the 'bootstage' command"
depends on BOOTSTAGE
help
Add a 'bootstage' command which supports printing a report
and un/stashing of bootstage data.
menu "Power commands"
config CMD_PMIC
bool "Enable Driver Model PMIC command"
depends on DM_PMIC
help
This is the pmic command, based on a driver model pmic's API.
Command features are unchanged:
- list - list pmic devices
- pmic dev <id> - show or [set] operating pmic device (NEW)
- pmic dump - dump registers
- pmic read address - read byte of register at address
- pmic write address - write byte to register at address
The only one change for this command is 'dev' subcommand.
config CMD_REGULATOR
bool "Enable Driver Model REGULATOR command"
depends on DM_REGULATOR
help
This command is based on driver model regulator's API.
User interface features:
- list - list regulator devices
- regulator dev <id> - show or [set] operating regulator device
- regulator info - print constraints info
- regulator status - print operating status
- regulator value <val] <-f> - print/[set] voltage value [uV]
- regulator current <val> - print/[set] current value [uA]
- regulator mode <id> - print/[set] operating mode id
- regulator enable - enable the regulator output
- regulator disable - disable the regulator output
The '-f' (force) option can be used for set the value which exceeds
the limits, which are found in device-tree and are kept in regulator's
uclass platdata structure.
endmenu
menu "Security commands"
config CMD_AES
bool "Enable the 'aes' command"
select AES
help
This provides a means to encrypt and decrypt data using the AES
(Advanced Encryption Standard). This algorithm uses a symetric key
and is widely used as a streaming cipher. Different key lengths are
supported by the algorithm but this command only supports 128 bits
at present.
config CMD_BLOB
bool "Enable the 'blob' command"
help
This is used with the Freescale secure boot mechanism.
Freescale's SEC block has built-in Blob Protocol which provides
a method for protecting user-defined data across system power
cycles. SEC block protects data in a data structure called a Blob,
which provides both confidentiality and integrity protection.
Encapsulating data as a blob
Each time that the Blob Protocol is used to protect data, a
different randomly generated key is used to encrypt the data.
This random key is itself encrypted using a key which is derived
from SoC's non-volatile secret key and a 16 bit Key identifier.
The resulting encrypted key along with encrypted data is called a
blob. The non-volatile secure key is available for use only during
secure boot.
During decapsulation, the reverse process is performed to get back
the original data.
Sub-commands:
blob enc - encapsulating data as a cryptgraphic blob
blob dec - decapsulating cryptgraphic blob to get the data
Syntax:
blob enc src dst len km
Encapsulate and create blob of data $len bytes long
at address $src and store the result at address $dst.
$km is the 16 byte key modifier is also required for
generation/use as key for cryptographic operation. Key
modifier should be 16 byte long.
blob dec src dst len km
Decapsulate the blob of data at address $src and
store result of $len byte at addr $dst.
$km is the 16 byte key modifier is also required for
generation/use as key for cryptographic operation. Key
modifier should be 16 byte long.
config CMD_HASH
bool "Support 'hash' command"
select HASH
help
This provides a way to hash data in memory using various supported
algorithms (such as SHA1, MD5, CRC32). The computed digest can be
saved to memory or to an environment variable. It is also possible
to verify a hash against data in memory.
config CMD_HVC
bool "Support the 'hvc' command"
depends on ARM_SMCCC
help
Allows issuing Hypervisor Calls (HVCs). Mostly useful for
development and testing.
config CMD_SMC
bool "Support the 'smc' command"
depends on ARM_SMCCC
help
Allows issuing Secure Monitor Calls (SMCs). Mostly useful for
development and testing.
config HASH_VERIFY
bool "hash -v"
depends on CMD_HASH
help
Add -v option to verify data against a hash.
config CMD_TPM
bool "Enable the 'tpm' command"
depends on TPM
help
This provides a means to talk to a TPM from the command line. A wide
range of commands if provided - see 'tpm help' for details. The
command requires a suitable TPM on your board and the correct driver
must be enabled.
config CMD_TPM_TEST
bool "Enable the 'tpm test' command"
depends on CMD_TPM
help
This provides a a series of tests to confirm that the TPM is working
correctly. The tests cover initialisation, non-volatile RAM, extend,
global lock and checking that timing is within expectations. The
tests pass correctly on Infineon TPMs but may need to be adjusted
for other devices.
endmenu
menu "Firmware commands"
config CMD_CROS_EC
bool "Enable crosec command"
depends on CROS_EC
default y
help
Enable command-line access to the Chrome OS EC (Embedded
Controller). This provides the 'crosec' command which has
a number of sub-commands for performing EC tasks such as
updating its flash, accessing a small saved context area
and talking to the I2C bus behind the EC (if there is one).
endmenu
menu "Filesystem commands"
config CMD_BTRFS
bool "Enable the 'btrsubvol' command"
select FS_BTRFS
help
This enables the 'btrsubvol' command to list subvolumes
of a BTRFS filesystem. There are no special commands for
listing BTRFS directories or loading BTRFS files - this
can be done by the generic 'fs' commands (see CMD_FS_GENERIC)
when BTRFS is enabled (see FS_BTRFS).
config CMD_CBFS
bool "Enable the 'cbfs' command"
depends on FS_CBFS
help
Define this to enable support for reading from a Coreboot
filesystem. This is a ROM-based filesystem used for accessing files
on systems that use coreboot as the first boot-loader and then load
U-Boot to actually boot the Operating System. Available commands are
cbfsinit, cbfsinfo, cbfsls and cbfsload.
config CMD_CRAMFS
bool "Enable the 'cramfs' command"
depends on FS_CRAMFS
help
This provides commands for dealing with CRAMFS (Compressed ROM
filesystem). CRAMFS is useful when space is tight since files are
compressed. Two commands are provided:
cramfsls - lists files in a cramfs image
cramfsload - loads a file from a cramfs image
config CMD_EXT2
bool "ext2 command support"
select FS_EXT4
help
Enables EXT2 FS command
config CMD_EXT4
bool "ext4 command support"
select FS_EXT4
help
Enables EXT4 FS command
config CMD_EXT4_WRITE
depends on CMD_EXT4
bool "ext4 write command support"
select EXT4_WRITE
help
Enables EXT4 FS write command
config CMD_FAT
bool "FAT command support"
select FS_FAT
help
Support for the FAT fs
config CMD_FS_GENERIC
bool "filesystem commands"
help
Enables filesystem commands (e.g. load, ls) that work for multiple
fs types.
config CMD_FS_UUID
bool "fsuuid command"
help
Enables fsuuid command for filesystem UUID.
config CMD_JFFS2
bool "jffs2 command"
select FS_JFFS2
help
Enables commands to support the JFFS2 (Journalling Flash File System
version 2) filesystem. This enables fsload, ls and fsinfo which
provide the ability to load files, list directories and obtain
filesystem information.
config CMD_MTDPARTS
bool "MTD partition support"
help
MTD partition support
config MTDIDS_DEFAULT
string "Default MTD IDs"
depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH
help
Defines a default MTD IDs list for use with MTD partitions in the
Linux MTD command line partitions format.
config MTDPARTS_DEFAULT
string "Default MTD partition scheme"
depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH
help
Defines a default MTD partitioning scheme in the Linux MTD command
line partitions format
config CMD_MTDPARTS_SPREAD
bool "Padd partition size to take account of bad blocks"
depends on CMD_MTDPARTS
help
This enables the 'spread' sub-command of the mtdparts command.
This command will modify the existing mtdparts variable by increasing
the size of the partitions such that 1) each partition's net size is
at least as large as the size specified in the mtdparts variable and
2) each partition starts on a good block.
config CMD_REISER
bool "reiser - Access to reiserfs filesystems"
help
This provides two commands which operate on a resierfs filesystem,
commonly used some years ago:
reiserls - list files
reiserload - load a file
config CMD_YAFFS2
bool "yaffs2 - Access of YAFFS2 filesystem"
depends on YAFFS2
default y
help
This provides commands for accessing a YAFFS2 filesystem. Yet
Another Flash Filesystem 2 is a filesystem designed specifically
for NAND flash. It incorporates bad-block management and ensures
that device writes are sequential regardless of filesystem
activity.
config CMD_ZFS
bool "zfs - Access of ZFS filesystem"
help
This provides commands to accessing a ZFS filesystem, commonly used
on Solaris systems. Two sub-commands are provided:
zfsls - list files in a directory
zfsload - load a file
See doc/README.zfs for more details.
endmenu
menu "Debug commands"
config CMD_BEDBUG
bool "bedbug"
help
The bedbug (emBEDded deBUGger) command provides debugging features
for some PowerPC processors. For details please see the
docuemntation in doc/README.beddbug
config CMD_DIAG
bool "diag - Board diagnostics"
help
This command provides access to board diagnostic tests. These are
called Power-on Self Tests (POST). The command allows listing of
available tests and running either all the tests, or specific tests
identified by name.
config CMD_IRQ
bool "irq - Show information about interrupts"
depends on !ARM && !MIPS && !SH
help
This enables two commands:
interrupts - enable or disable interrupts
irqinfo - print device-specific interrupt information
config CMD_KGDB
bool "kgdb - Allow debugging of U-Boot with gdb"
help
This enables a 'kgdb' command which allows gdb to connect to U-Boot
over a serial link for debugging purposes. This allows
single-stepping, inspecting variables, etc. This is supported only
on PowerPC at present.
config CMD_LOG
bool "log - Generation, control and access to logging"
select LOG
help
This provides access to logging features. It allows the output of
log data to be controlled to a limited extent (setting up the default
maximum log level for emitting of records). It also provides access
to a command used for testing the log system.
config CMD_TRACE
bool "trace - Support tracing of function calls and timing"
help
Enables a command to control using of function tracing within
U-Boot. This allows recording of call traces including timing
information. The command can write data to memory for exporting
for analsys (e.g. using bootchart). See doc/README.trace for full
details.
endmenu
config CMD_UBI
tristate "Enable UBI - Unsorted block images commands"
select CRC32
select MTD_UBI
select CMD_MTDPARTS
default y if NAND_SUNXI
help
UBI is a software layer above MTD layer which admits use of LVM-like
logical volumes on top of MTD devices, hides some complexities of
flash chips like wear and bad blocks and provides some other useful
capabilities. Please, consult the MTD web site for more details
(www.linux-mtd.infradead.org). Activate this option if you want
to use U-Boot UBI commands.
config CMD_UBIFS
tristate "Enable UBIFS - Unsorted block images filesystem commands"
depends on CMD_UBI
select CRC32
select LZO
default y if CMD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.
endmenu
|