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
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
|
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 CMDLINE_PS_SUPPORT
bool "Enable support for changing the command prompt string at run-time"
depends on HUSH_PARSER
help
Only static string in the prompt is supported so far. The string is
obtained from environment variables PS1 and PS2.
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 "Zynq> " if ARCH_ZYNQ
default "ZynqMP> " if ARCH_ZYNQMP
default "=> "
help
This string is displayed in the command line to the left of the
cursor.
config SYS_PROMPT_HUSH_PS2
string "Hush shell secondary prompt"
depends on HUSH_PARSER
default "> "
help
This defines the secondary prompt string, which is
printed when the command interpreter needs more input
to complete a command. Usually "> ".
config SYS_MAXARGS
int "Maximum number arguments accepted by commands"
default 16
config SYS_CBSIZE
int "Console input buffer size"
default 2048 if ARCH_TEGRA || ARCH_VERSAL || ARCH_ZYNQ || ARCH_ZYNQMP || \
RCAR_GEN3 || TARGET_SOCFPGA_SOC64
default 512 if ARCH_MX5 || ARCH_MX6 || ARCH_MX7 || FSL_LSCH2 || \
FSL_LSCH3 || X86
default 256 if M68K || PPC
default 1024
config SYS_PBSIZE
int "Buffer size for console output"
default 1024 if ARCH_SUNXI
default 1044
config SYS_XTRACE
bool "Command execution tracer"
depends on CMDLINE
default y if CMDLINE
help
This option enables the possiblity to print all commands before
executing them and after all variables are evaluated (similar
to Bash's xtrace/'set -x' feature).
To enable the tracer a variable "xtrace" needs to be defined in
the environment.
config BUILD_BIN2C
bool
comment "Commands"
menu "Info commands"
config CMD_ACPI
bool "acpi"
depends on ACPI
default y
help
List and dump ACPI tables. ACPI (Advanced Configuration and Power
Interface) is used mostly on x86 for providing information to the
Operating System about devices in the system. The tables are set up
by the firmware, typically U-Boot but possibly an earlier firmware
module, if U-Boot is chain-loaded from something else. ACPI tables
can also include code, to perform hardware-specific tasks required
by the Operating Systems. This allows some amount of separation
between the firmware and OS, and is particularly useful when you
want to make hardware changes without the OS needing to be adjusted.
config CMD_ADDRMAP
bool "addrmap"
depends on ADDR_MAP
default y
help
List non-identity virtual-physical memory mappings for 32-bit CPUs.
config CMD_BDI
bool "bdinfo"
default y
help
Print board info
config CMD_BDINFO_EXTRA
bool "bdinfo extra features"
default y if SANDBOX || X86
help
Show additional information about the board. This uses a little more
code space but provides more options, particularly those useful for
bringup, development and debugging.
config CMD_CONFIG
bool "config"
default SANDBOX
select BUILD_BIN2C
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"
depends on 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_FWU_METADATA
bool "fwu metadata read"
depends on FWU_MULTI_BANK_UPDATE
help
Command to read the metadata and dump it's contents
config CMD_LICENSE
bool "license"
select BUILD_BIN2C
help
Print GPL license text
config CMD_PMC
bool "pmc"
help
Provides access to the Intel Power-Management Controller (PMC) so
that its state can be examined. This does not currently support
changing the state but it is still useful for debugging and seeing
what is going on.
config CMD_REGINFO
bool "reginfo"
depends on PPC
help
Register dump
config CMD_TLV_EEPROM
bool "tlv_eeprom"
depends on I2C_EEPROM
select CRC32
help
Display and program the system EEPROM data block in ONIE Tlvinfo
format. TLV stands for Type-Length-Value.
config SPL_CMD_TLV_EEPROM
bool "tlv_eeprom for SPL"
depends on SPL_I2C_EEPROM
select SPL_DRIVERS_MISC
select SPL_CRC32
help
Read system EEPROM data block in ONIE Tlvinfo format from SPL.
config CMD_SBI
bool "sbi"
depends on RISCV_SMODE && SBI_V02
help
Display information about the SBI implementation.
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_BOOTM_PRE_LOAD
bool "enable pre-load on bootm"
depends on CMD_BOOTM
depends on IMAGE_PRE_LOAD
default n
help
Enable support of stage pre-load for the bootm command.
This stage allow to check or modify the image provided
to the bootm command.
config CMD_BOOTDEV
bool "bootdev"
depends on BOOTSTD
default y if BOOTSTD_FULL
help
Support listing available bootdevs (boot devices) which can provide an
OS to boot, as well as showing information about a particular one.
This command is not necessary for bootstd to work.
config CMD_BOOTFLOW
bool "bootflow"
depends on BOOTSTD
default y
help
Support scanning for bootflows available with the bootdevs. The
bootflows can optionally be booted.
config CMD_BOOTFLOW_FULL
bool "bootflow - extract subcommands"
depends on BOOTSTD_FULL
default y
help
Add the ability to list the available bootflows, select one and obtain
information about it.
This command is not necessary for bootstd to work.
config CMD_BOOTMETH
bool "bootmeth"
depends on BOOTSTD
default y if BOOTSTD_FULL
help
Support listing available bootmethds (methods used to boot an
Operating System), as well as selecting the order that the bootmeths
are used.
This command is not necessary for bootstd to work.
config BOOTM_EFI
bool "Support booting UEFI FIT images"
depends on CMD_BOOTEFI && CMD_BOOTM && FIT
default y
help
Support booting UEFI FIT images via the bootm command.
config CMD_BOOTZ
bool "bootz"
help
Boot the Linux zImage
config CMD_BOOTI
bool "booti"
depends on ARM64 || RISCV
default y
help
Boot an AArch64 Linux Kernel image from memory.
config BOOTM_LINUX
bool "Support booting Linux OS images"
depends on CMD_BOOTM || CMD_BOOTZ || CMD_BOOTI
default y
help
Support booting the Linux kernel directly via a command such as bootm
or booti or bootz.
config BOOTM_NETBSD
bool "Support booting NetBSD (non-EFI) loader images"
depends on CMD_BOOTM
default y
help
Support booting NetBSD via the bootm command.
config BOOTM_OPENRTOS
bool "Support booting OPENRTOS / FreeRTOS images"
depends on CMD_BOOTM
help
Support booting OPENRTOS / FreeRTOS via the bootm command.
config BOOTM_OSE
bool "Support booting Enea OSE images"
depends on (ARM && (ARM64 || CPU_V7A || CPU_V7R) || SANDBOX || PPC || X86)
depends on CMD_BOOTM
help
Support booting Enea OSE images via the bootm command.
config BOOTM_PLAN9
bool "Support booting Plan9 OS images"
depends on CMD_BOOTM
default y
help
Support booting Plan9 images via the bootm command.
config BOOTM_RTEMS
bool "Support booting RTEMS OS images"
depends on CMD_BOOTM
default y
help
Support booting RTEMS images via the bootm command.
config CMD_SEAMA
bool "Support read SEAMA NAND images"
depends on MTD_RAW_NAND
help
Support reading NAND Seattle Image (SEAMA) images.
config CMD_VBE
bool "vbe - Verified Boot for Embedded"
depends on BOOTMETH_VBE
default y if BOOTSTD_FULL
help
Provides various subcommands related to VBE, such as listing the
available methods, looking at the state and changing which method
is used to boot. Updating the parameters is not currently
supported.
config BOOTM_VXWORKS
bool "Support booting VxWorks OS images"
depends on CMD_BOOTM
default y
help
Support booting VxWorks images via the bootm command.
config SYS_BOOTM_LEN
hex "Maximum size of a decompresed OS image"
depends on CMD_BOOTM || CMD_BOOTI || CMD_BOOTZ || \
LEGACY_IMAGE_FORMAT || SPL_LEGACY_IMAGE_FORMAT
default 0x4000000 if PPC || ARM64
default 0x1000000 if X86 || ARCH_MX6 || ARCH_MX7
default 0x800000
help
This is the maximum size of the buffer that is used to decompress the OS
image in to, if passing a compressed image to bootm/booti/bootz.
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 && !CPU_V7M
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
default y if CMD_BOOTEFI_SELFTEST
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
select CHARSET
help
Add an ANSI terminal boot menu command.
config CMD_ADTIMG
bool "adtimg"
help
Android DTB/DTBO image manipulation commands. Read dtb/dtbo files from
image into RAM, dump image structure information, etc. Those dtb/dtbo
files should be merged in one dtb further, which needs to be passed to
the kernel, as part of a boot process.
config CMD_ABOOTIMG
bool "abootimg"
depends on ANDROID_BOOT_IMAGE
help
Android Boot Image manipulation commands. Allows one to extract
images contained in boot.img, like kernel, ramdisk, dtb, etc, and
obtain corresponding meta-information from boot.img.
See doc/android/boot-image.rst for details.
config CMD_CEDIT
bool "cedit - Configuration editor"
depends on CEDIT
default y
help
Provides a command to allow editing of board configuration and
providing a UI for the user to adjust settings. Subcommands allow
loading and saving of configuration as well as showing an editor.
config CMD_ELF
bool "bootelf, bootvx"
default y
select LIB_ELF
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 SUPPORT_EXTENSION_SCAN
bool
config CMD_EXTENSION
bool "Extension board management command"
select CMD_FDT
depends on SUPPORT_EXTENSION_SCAN
help
Enables the "extension" command, which allows to detect
extension boards connected to the system, and apply
corresponding Device Tree overlays.
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_XXD
bool "xxd"
help
Print file as hexdump to standard output
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 args or dtb for Falcon-mode NAND boot"
depends on CMD_SPL && (TPL_NAND_SUPPORT || SPL_NAND_SUPPORT)
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_NOR_OFS
hex "Offset of OS args or dtb for Falcon-mode NOR boot"
depends on CMD_SPL && SPL_NOR_SUPPORT
default 0
help
This provides the offset of the command line arguments or dtb for
Linux when booting from NOR in Falcon mode.
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_THOR_DOWNLOAD
bool "thor - TIZEN 'thor' download"
select DFU
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 THOR_RESET_OFF
bool "thor: Disable reset on completion"
depends on CMD_THOR_DOWNLOAD
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_ERASEENV
bool "eraseenv"
depends on CMD_SAVEENV
help
Erase environment variables from 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.
config CMD_NVEDIT_EFI
bool "env [set|print] -e - set/print UEFI variables"
depends on EFI_LOADER
imply HEXDUMP
help
UEFI variables are encoded as some form of U-Boot variables.
If enabled, we are allowed to set/print UEFI variables using
"env" command with "-e" option without knowing details.
config CMD_NVEDIT_INDIRECT
bool "env indirect - Sets environment value from another"
config CMD_NVEDIT_INFO
bool "env info - print or evaluate environment information"
help
Print environment information:
- env_valid : is environment valid
- env_ready : is environment imported into hash table
- env_use_default : is default environment used
This command can be optionally used for evaluation in scripts:
[-d] : evaluate whether default environment is used
[-p] : evaluate whether environment can be persisted
[-q] : quiet output
The result of multiple evaluations will be combined with AND.
config CMD_NVEDIT_LOAD
bool "env load"
help
Load all environment variables from the compiled-in persistent
storage.
config CMD_NVEDIT_SELECT
bool "env select"
help
Select the compiled-in persistent storage of environment variables.
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_BLOBLIST
bool "bloblist"
default y if BLOBLIST
help
Show information about the bloblist, a collection of binary blobs
held in memory that persist between SPL and U-Boot. In the case of
x86 devices the bloblist can be used to hold ACPI tables so that they
remain available in memory.
config CMD_CRC32
bool "crc32"
default y
select HASH
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 SYS_I2C_EEPROM_BUS
int "I2C bus of the EEPROM device."
depends on CMD_EEPROM
default 0
config SYS_I2C_EEPROM_ADDR_LEN
int "Length in bytes of the EEPROM memory array address"
depends on CMD_EEPROM || ID_EEPROM
default 1
range 1 2
help
Note: This is NOT the chip address length!
config SYS_EEPROM_SIZE
depends on CMD_EEPROM
int "Size in bytes of the EEPROM device"
default 256
config SYS_EEPROM_PAGE_WRITE_BITS
int "Number of bits used to address bytes in a single page"
depends on CMD_EEPROM
default 8
help
The EEPROM page size is 2^SYS_EEPROM_PAGE_WRITE_BITS.
A 64 byte page, for example would require six bits.
config SYS_EEPROM_PAGE_WRITE_DELAY_MS
int "Number of milliseconds to delay between page writes"
depends on CMD_EEPROM || CMD_I2C
default 0
config LOOPW
bool "loopw"
help
Infinite write loop on address range
config CMD_MD5SUM
bool "md5sum"
select MD5
help
Compute MD5 checksum.
config MD5SUM_VERIFY
bool "md5sum -v"
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_MEM_SEARCH
bool "ms - Memory search"
help
Memory-search command
This allows searching through a region of memory looking for hex
data (byte, 16-bit word, 32-bit long, also 64-bit on machines that
support it). It is also possible to search for a string. The
command accepts a memory range and a list of values to search for.
The values need to appear in memory in the same order they are given
in the command. At most 10 matches can be returned at a time, but
pressing return will show the next 10 matches. Environment variables
are set for use with scripting (memmatches, memaddr, mempos).
config CMD_MX_CYCLIC
bool "Enable cyclic md/mw commands"
depends on CMD_MEMORY
help
Add the "mdc" and "mwc" memory commands. These are cyclic
"md/mw" commands.
Examples:
=> mdc.b 10 4 500
This command will print 4 bytes (10,11,12,13) each 500 ms.
=> mwc.l 100 12345678 10
This command will write 12345678 to address 100 all 10 ms.
config CMD_RANDOM
bool "random"
default y
depends on CMD_MEMORY && (LIB_RAND || LIB_HW_RAND)
help
random - fill memory with random data
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.
if SYS_ALT_MEMTEST
config SYS_ALT_MEMTEST_BITFLIP
bool "Bitflip test"
default y
help
The alternative memory test includes bitflip test since 2020.07.
The bitflip test significantly increases the overall test time.
Bitflip test can optionally be disabled here.
endif
config SYS_MEMTEST_START
hex "default start address for mtest"
default 0x0
help
This is the default start address for mtest for simple read/write
test. If no arguments are given to mtest, default address is used
as start address.
config SYS_MEMTEST_END
hex "default end address for mtest"
default 0x1000
help
This is the default end address for mtest for simple read/write
test. If no arguments are given to mtest, default address is used
as end address.
endif
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_UNLZ4
bool "unlz4"
default y if CMD_BOOTI
select LZ4
help
Support decompressing an LZ4 image from memory region.
config CMD_UNZIP
bool "unzip"
default y if CMD_BOOTI
select GZIP
help
Uncompress a zip-compressed memory region.
config CMD_ZIP
bool "zip"
select GZIP_COMPRESSED
help
Compress a memory region with zlib deflate method.
endmenu
menu "Device access commands"
config CMD_ARMFFA
bool "Arm FF-A test command"
depends on ARM_FFA_TRANSPORT
help
Provides a test command for the FF-A support
supported options:
- Listing the partition(s) info
- Sending a data pattern to the specified partition
- Displaying the arm_ffa device info
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
depends on DM_REGULATOR
help
Shows ADC device info and permit printing one-shot analog converted
data from a named Analog to Digital Converter.
config CMD_BCB
bool "bcb"
depends on MMC
depends on PARTITIONS
help
Read/modify/write the fields of Bootloader Control Block, usually
stored on the flash "misc" partition with its structure defined in:
https://android.googlesource.com/platform/bootable/recovery/+/master/
bootloader_message/include/bootloader_message/bootloader_message.h
Some real-life use-cases include (but are not limited to):
- Determine the "boot reason" (and act accordingly):
https://source.android.com/devices/bootloader/boot-reason
- Get/pass a list of commands from/to recovery:
https://android.googlesource.com/platform/bootable/recovery
- Inspect/dump the contents of the BCB fields
config CMD_BIND
bool "bind/unbind - Bind or unbind a device to/from a driver"
depends on DM
default y if USB_ETHER
help
Bind or unbind a device to/from a driver from the command line.
This is useful in situations where a device may be handled by several
drivers. For example, this can be used to bind a UDC to the usb ether
gadget driver from the command line.
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
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_FASTBOOT
bool "fastboot - Android fastboot support"
depends on FASTBOOT
help
This enables the command "fastboot" which enables the Android
fastboot mode for the platform. Fastboot is a protocol for
downloading images, flashing and device control used on
Android devices. Fastboot requires either the network stack
enabled or support for acting as a USB device.
See doc/android/fastboot.rst for more information.
config CMD_FLASH
bool "flinfo, erase, protect"
default y
depends on MTD || FLASH_CFI_DRIVER || MTD_NOR_FLASH
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_FPGA_LOAD_SECURE
bool "fpga loads - loads secure bitstreams"
depends on CMD_FPGA
select FPGA_LOAD_SECURE
help
Enables the fpga loads command which is used to load secure
(authenticated or encrypted or both) bitstreams on to FPGA.
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_GPIO_READ
bool "gpio read - save GPIO value to variable"
depends on CMD_GPIO
help
Enables the 'gpio read' command that saves the value
of a GPIO pin to a variable.
config CMD_PWM
bool "pwm"
depends on DM_PWM
help
Control PWM channels, this allows invert/config/enable/disable PWM channels.
config CMD_GPT
bool "GPT (GUID Partition Table) command"
select EFI_PARTITION
select PARTITION_UUIDS
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,
resetting 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_W1
depends on W1
default y if W1
bool "w1 - Support for Dallas 1-Wire protocol"
help
Dallas 1-wire protocol support
config CMD_LOADB
bool "loadb"
default y
help
Load a binary file over serial line.
config CMD_LOADM
bool "loadm"
help
Load a binary over memory mapped.
config CMD_LOADS
bool "loads - Load a file over serial in S-Record format"
default y
help
Load an S-Record file over serial line
config LOADS_ECHO
bool "Echo all characters received during a loads back to console"
depends on CMD_LOADS
help
If enabled, all characters received during a serial download (using
the "loads" command) are echoed back. This might be needed by some
terminal emulations (like "cu"), but may as well just take time on
others. This sets the initial value of the "loads_echo" environment
variable to 1.
config CMD_SAVES
bool "saves - Save a file over serial in S-Record format"
depends on CMD_LOADS
help
Provides a way to save a binary file using the Motorola S-Record
format over the serial line.
config SYS_LOADS_BAUD_CHANGE
bool "Enable a temporary baudrate change during loads/saves command"
depends on CMD_LOADS || CMD_SAVES
config CMD_LOADXY_TIMEOUT
int "loadxy_timeout"
range 0 2000
default 90
help
Initial timeout for loadx and loady commands. Zero means infinity.
config CMD_LSBLK
depends on BLK
bool "lsblk - list block drivers and devices"
help
Print list of available block device drivers, and for each, the list
of known block devices.
config CMD_MBR
bool "MBR (Master Boot Record) command"
select DOS_PARTITION
help
Enable the 'mbr' command to ready and write MBR (Master Boot Record)
style partition tables.
config CMD_MISC
bool "misc"
depends on MISC
help
Enable the command "misc" for accessing miscellaneous devices with
a MISC uclass driver. The command provides listing all MISC devices
as well as read and write functionalities via their drivers.
config CMD_MMC
bool "mmc"
depends on MMC
help
MMC memory mapped support.
if CMD_MMC
config CMD_BKOPS_ENABLE
bool "mmc bkops enable"
depends on CMD_MMC
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_MMC_RPMB
bool "Enable support for RPMB in the mmc command"
depends on SUPPORT_EMMC_RPMB
help
Enable the commands for reading, writing and programming the
key for the Replay Protection Memory Block partition in eMMC.
config CMD_MMC_SWRITE
bool "mmc swrite"
depends on MMC_WRITE
select IMAGE_SPARSE
help
Enable support for the "mmc swrite" command to write Android sparse
images to eMMC.
endif
config CMD_CLONE
bool "clone"
depends on BLK
help
Enable storage cloning over block devices, useful for
initial flashing by external block device without network
or usb support.
config CMD_OPTEE_RPMB
bool "Enable read/write support on RPMB via OPTEE"
depends on SUPPORT_EMMC_RPMB && OPTEE
help
Enable the commands for reading, writing persistent named values
in the Replay Protection Memory Block partition in eMMC by
using Persistent Objects in OPTEE
config CMD_MTD
bool "mtd"
depends on MTD
select MTD_PARTITIONS
help
MTD commands support.
config CMD_MUX
bool "mux"
depends on MULTIPLEXER
help
List, select, and deselect mux controllers on the fly.
config CMD_NAND
bool "nand"
default y if NAND_SUNXI
depends on MTD_RAW_NAND
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_ONENAND
bool "onenand - access to onenand device"
depends on MTD
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 USE_ONENAND_BOARD_INIT
bool "Call onenand_board_init() in the onenand command"
depends on CMD_ONENAND
config CMD_OSD
bool "osd"
help
Enable the 'osd' command which allows to query information from and
write text data to a on-screen display (OSD) device; a virtual device
associated with a display capable of displaying a text overlay on the
display it's associated with..
config CMD_PART
bool "part"
depends on PARTITIONS
select PARTITION_UUIDS
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_PCI_MPS
bool "pci_mps - Configure PCI device MPS"
depends on PCI
help
Enables PCI Express Maximum Packet Size (MPS) tuning. This
command configures the PCI Express MPS of each endpoint to the
largest value supported by all devices below the root complex.
The Maximum Read Request Size will not be altered. This method is
the same algorithm as used by Linux pci=pcie_bus_safe.
config CMD_PINMUX
bool "pinmux - show pins muxing"
depends on PINCTRL
default y if PINCTRL
help
Parse all available pin-controllers and show pins muxing. This
is useful for debug purpoer to check the pin muxing and to know if
a pin is configured as a GPIO or as an alternate function.
config CMD_POWEROFF
bool "poweroff"
help
Poweroff/Shutdown the system
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_SCSI
bool "scsi - Access to SCSI devices"
depends on SCSI
default y
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"
depends on DM_SPI_FLASH || SPI_FLASH
default y if DM_SPI_FLASH
help
SPI Flash support
config CMD_SF_TEST
bool "sf test - Allow testing of SPI flash"
depends on CMD_SF
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 - Command to access spi device"
depends on SPI
help
SPI utility command.
config DEFAULT_SPI_BUS
int "default spi bus used by sspi command"
depends on CMD_SPI
default 0
config DEFAULT_SPI_MODE
hex "default spi mode used by sspi command (see include/spi.h)"
depends on CMD_SPI
default 0
config CMD_TEMPERATURE
bool "temperature - display the temperature from thermal sensors"
depends on DM_THERMAL
help
Provides a way to list thermal sensors and to get their readings.
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_UFS
bool "Enable UFS - Universal Flash Subsystem commands"
depends on UFS
help
"This provides commands to initialise and configure universal flash
subsystem devices"
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"
depends on USB_HOST
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"
depends on USB_GADGET_DOWNLOAD
select USB_FUNCTION_MASS_STORAGE
depends on BLK && USB_GADGET
help
Enables the command "ums" and the USB mass storage support to the
export a block device: U-Boot, the USB device, acts as a simple
external hard drive plugged on the host USB port.
config CMD_UMS_ABORT_KEYED
bool "UMS abort with any key"
depends on CMD_USB_MASS_STORAGE
help
Allow interruption of usb mass storage run with any key pressed.
config CMD_PVBLOCK
bool "Xen para-virtualized block device"
depends on XEN
select PVBLOCK
help
Xen para-virtualized block device support
config CMD_VIRTIO
bool "virtio"
depends on VIRTIO
default y if VIRTIO
help
VirtIO block device support
config CMD_WDT
bool "wdt"
depends on WDT
help
This provides commands to control the watchdog timer devices.
config CMD_WRITE
bool "write - Write binary data to a partition"
help
Provides low-level write access to a partition.
config CMD_AXI
bool "axi"
depends on AXI
help
Enable the command "axi" for accessing AXI (Advanced eXtensible
Interface) busses, a on-chip interconnect specification for managing
functional blocks in SoC designs, which is also often used in designs
involving FPGAs (e.g. communication with IP cores in Xilinx FPGAs).
endmenu
menu "Shell scripting commands"
config CMD_CAT
bool "cat"
help
Print file to standard output
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.
config CMD_SETEXPR_FMT
bool "setexpr_fmt"
depends on CMD_SETEXPR
help
Evaluate format string expression and store result in an environment
variable.
endmenu
menu "Android support commands"
config CMD_AB_SELECT
bool "ab_select"
depends on ANDROID_AB
help
On Android devices with more than one boot slot (multiple copies of
the kernel and system images) this provides a command to select which
slot should be used to boot from and register the boot attempt. This
is used by the new A/B update model where one slot is updated in the
background while running from the other slot.
endmenu
if NET
menuconfig CMD_NET
bool "Network commands"
default y
imply NETDEVICES
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 CMD_DHCP6
bool "dhcp6"
depends on IPV6
help
Boot image via network using DHCPv6/TFTP protocol using IPv6.
Will perform 4-message exchange with DHCPv6 server, requesting
the minimum required options to TFTP boot. Complies with RFC 8415.
config BOOTP_MAY_FAIL
bool "Allow for the BOOTP/DHCP server to not be found"
depends on CMD_BOOTP
help
If the DHCP server is not found after the configured retry count, the
call will fail instead of starting over. This can be used to fail
over to Link-local IP address configuration if the DHCP server is not
available.
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_VENDOREX
bool "Support vendor extensions from BOOTP/DHCP server"
depends on CMD_BOOTP
config BOOTP_BOOTFILESIZE
bool "Request & store 'bootfilesize' from BOOTP/DHCP server"
depends on CMD_BOOTP
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_PREFER_SERVERIP
bool "serverip variable takes precedent over DHCP server IP."
depends on CMD_BOOTP
help
By default a BOOTP/DHCP reply will overwrite the 'serverip' variable.
With this option enabled, the 'serverip' variable in the environment
takes precedence over DHCP server IP and will only be set by the DHCP
server if not already set in the environment.
config BOOTP_SUBNETMASK
bool "Request & store 'netmask' from BOOTP/DHCP server"
default y
depends on CMD_BOOTP
config BOOTP_NISDOMAIN
bool "Request & store 'nisdomain' from BOOTP/DHCP server"
depends on CMD_BOOTP
config BOOTP_NTPSERVER
bool "Request & store 'ntpserverip' from BOOTP/DHCP server"
depends on CMD_BOOTP
config BOOTP_TIMEOFFSET
bool "Request & store 'timeoffset' from BOOTP/DHCP server"
depends on CMD_BOOTP && CMD_SNTP
config CMD_PCAP
bool "pcap capture"
help
Selecting this will allow capturing all Ethernet packets and store
them in physical memory in a PCAP formated file,
later to be analyzed by PCAP reader application (IE. WireShark).
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"
if CMD_DHCP6
config DHCP6_PXE_CLIENTARCH
hex
default 0x16 if ARM64
default 0x15 if ARM
default 0xFF
config DHCP6_PXE_DHCP_OPTION
bool "Request & store 'pxe_configfile' from DHCP6 server"
config DHCP6_ENTERPRISE_ID
int "Enterprise ID to send in DHCPv6 Vendor Class Option"
default 0
endif
config CMD_TFTPBOOT
bool "tftpboot"
default y
help
tftpboot - load file 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"
help
Boot image via network using NFS protocol.
config NFS_TIMEOUT
int "Timeout in milliseconds for NFS mounts"
depends on CMD_NFS
default 2000
help
Timeout in milliseconds used in NFS protocol. If you encounter
"ERROR: Cannot umount" in nfs command, try longer timeout such as
10000.
config SYS_DISABLE_AUTOLOAD
bool "Disable automatically loading files over the network"
depends on CMD_BOOTP || CMD_DHCP || CMD_NFS || CMD_RARP
help
Typically, commands such as "dhcp" will attempt to automatically
load a file from the network, once the initial network configuration
is complete. Enable this option to disable this behavior and instead
require files to be loaded over the network by subsequent commands.
config CMD_WGET
bool "wget"
select PROT_TCP
help
wget is a simple command to download kernel, or other files,
from a http server over TCP.
config CMD_MII
bool "mii"
imply CMD_MDIO
help
If set, allows 802.3(clause 22) MII Management functions interface access
The management interface specified in Clause 22 provides
a simple, two signal, serial interface to connect a
Station Management entity and a managed PHY for providing access
to management parameters and services.
The interface is referred to as the MII management interface.
config MII_INIT
bool "Call mii_init() in the mii command"
depends on CMD_MII && (MPC8XX_FEC || FSLDMAFE || MCFFEC)
config CMD_MDIO
bool "mdio"
depends on PHYLIB
help
If set, allows Enable 802.3(clause 45) MDIO interface registers access
The MDIO interface is orthogonal to the MII interface and extends
it by adding access to more registers through indirect addressing.
config CMD_PING
bool "ping"
help
Send ICMP ECHO_REQUEST to network host
config CMD_PING6
bool "ping6"
depends on IPV6
default y if (CMD_PING && IPV6)
help
Send ICMPv6 ECHO_REQUEST to network host
config CMD_CDP
bool "cdp"
help
Perform CDP network configuration
config CMD_SNTP
bool "sntp"
select PROT_UDP
help
Synchronize RTC via network
config CMD_DNS
bool "dns"
help
Lookup the IP of a hostname
config CMD_LINK_LOCAL
bool "linklocal"
select LIB_RAND
help
Acquire a network IP address using the link-local protocol
config CMD_NCSI
bool "ncsi"
depends on PHY_NCSI
help
Manually configure the attached NIC via NC-SI.
Normally this happens automatically before other network
operations.
config IPV6_ROUTER_DISCOVERY
bool "Do IPv6 router discovery"
depends on IPV6
help
Will automatically perform router solicitation on first IPv6
network operation
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 PXE_UTILS
help
Boot image via network using PXE protocol
config CMD_WOL
bool "wol"
help
Wait for wake-on-lan Magic Packet
endif
menu "Misc commands"
config CMD_2048
bool "Play 2048"
help
This is a simple sliding block puzzle game designed by Italian web
developer Gabriele Cirulli. The game's objective is to slide numbered
tiles on a grid to combine them to create a tile with the number
2048.
This needs ANSI support on your terminal to work. It is not fully
functional on a video device.
config CMD_BMP
bool "Enable 'bmp' command"
depends on VIDEO
select BMP
help
This provides a way to obtain information about a BMP-format image
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_BOOTCOUNT
bool "bootcount"
depends on BOOTCOUNT_LIMIT
help
Enable the bootcount command, which allows interrogation and
reset of the bootcounter.
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_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_BLKMAP
bool "blkmap - Composable virtual block devices"
depends on BLKMAP
default y if BLKMAP
help
Create virtual block devices that are backed by various sources,
e.g. RAM, or parts of an existing block device. Though much more
rudimentary, it borrows a lot of ideas from Linux's device mapper
subsystem.
Example use-cases:
- Treat a region of RAM as a block device, i.e. a RAM disk. This let's
you extract files from filesystem images stored in RAM (perhaps as a
result of a TFTP transfer).
- Create a virtual partition on an existing device. This let's you
access filesystems that aren't stored at an exact partition
boundary. A common example is a filesystem image embedded in an FIT
image.
config CMD_BUTTON
bool "button"
depends on BUTTON
default y if BUTTON
help
Enable the 'button' command which allows to get the status of
buttons supported by the board. The buttonss can be listed with
'button list' and state can be known with 'button <label>'.
Any button drivers can be controlled with this command, e.g.
button_gpio.
config CMD_CACHE
bool "icache or dcache"
help
Enable the "icache" and "dcache" commands
config CMD_CONITRACE
bool "conitrace - trace console input codes"
help
Enable the 'conitrace' command which displays the codes received
from the console input as hexadecimal numbers.
config CMD_CLS
bool "Enable clear screen command 'cls'"
default y if LCD || VIDEO
help
Enable the 'cls' command which clears the screen contents
on video frame buffer.
config CMD_EFIDEBUG
bool "efidebug - display/configure UEFI environment"
depends on EFI_LOADER
select EFI_DEVICE_PATH_TO_TEXT
help
Enable the 'efidebug' command which provides a subset of UEFI
shell utility with simplified functionality. It will be useful
particularly for managing boot parameters as well as examining
various EFI status for debugging.
config CMD_EFICONFIG
bool "eficonfig - provide menu-driven uefi variables maintenance interface"
default y if !HAS_BOARD_SIZE_LIMIT
depends on CMD_BOOTEFI_BOOTMGR
select MENU
help
Enable the 'eficonfig' command which provides the menu-driven UEFI
variable maintenance interface.
config CMD_EXCEPTION
bool "exception - raise exception"
depends on ARM || RISCV || SANDBOX || X86
help
Enable the 'exception' command which allows to raise an exception.
config CMD_LED
bool "led"
depends on 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_INI
bool "ini"
help
Enable the 'ini' command which allows a .ini file to be parsed and
placed into environment variables. Please check the source code for
this as there is no documentation.
config CMD_DATE
bool "date"
default y if DM_RTC
select LIB_DATE
help
Enable the 'date' command for getting/setting the time/date in RTC
devices.
config CMD_RTC
bool "rtc"
depends on DM_RTC
help
Enable the 'rtc' command for low-level access to 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.
config CMD_PAUSE
bool "pause command"
help
Delay execution waiting for any user input.
Useful to allow the user to read a failure log.
config CMD_RNG
bool "rng command"
depends on DM_RNG
default y if SANDBOX
select HEXDUMP
help
Print bytes from the hardware random number generator.
config CMD_KASLRSEED
bool "kaslrseed"
depends on DM_RNG
help
Set the kaslr-seed in the chosen node with entropy provided by a
hardware random number generator.
config CMD_SLEEP
bool "sleep"
default y
help
Delay execution for some time
config CMD_MP
bool "support for multiprocessor commands"
depends on MP
default y
help
This enables commands to bringup different processors
in multiprocessor cases.
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_SYSBOOT
bool "sysboot"
select PXE_UTILS
help
Boot image via local extlinux.conf file
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
config CMD_PSTORE
bool "pstore"
help
This provides access to Linux PStore with Rammoops backend. The main
feature is to allow to display or save PStore records.
See doc/pstore.rst for more information.
if CMD_PSTORE
config CMD_PSTORE_MEM_ADDR
hex "Memory Address"
depends on CMD_PSTORE
help
Base addr used for PStore ramoops memory, should be identical to
ramoops.mem_address parameter used by kernel
config CMD_PSTORE_MEM_SIZE
hex "Memory size"
depends on CMD_PSTORE
default "0x10000"
help
Size of PStore ramoops memory, should be identical to ramoops.mem_size
parameter used by kernel, a power of 2 and larger than the sum of the
record sizes
config CMD_PSTORE_RECORD_SIZE
hex "Dump record size"
depends on CMD_PSTORE
default "0x1000"
help
Size of each dump done on oops/panic, should be identical to
ramoops.record_size parameter used by kernel and a power of 2
Must be non-zero
config CMD_PSTORE_CONSOLE_SIZE
hex "Kernel console log size"
depends on CMD_PSTORE
default "0x1000"
help
Size of kernel console log, should be identical to
ramoops.console_size parameter used by kernel and a power of 2
Must be non-zero
config CMD_PSTORE_FTRACE_SIZE
hex "FTrace log size"
depends on CMD_PSTORE
default "0x1000"
help
Size of ftrace log, should be identical to ramoops.ftrace_size
parameter used by kernel and a power of 2
config CMD_PSTORE_PMSG_SIZE
hex "User space message log size"
depends on CMD_PSTORE
default "0x1000"
help
Size of user space message log, should be identical to
ramoops.pmsg_size parameter used by kernel and a power of 2
config CMD_PSTORE_ECC_SIZE
int "ECC size"
depends on CMD_PSTORE
default "0"
help
if non-zero, the option enables ECC support and specifies ECC buffer
size in bytes (1 is a special value, means 16 bytes ECC), should be
identical to ramoops.ramoops_ecc parameter used by kernel
endif
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.
config CMD_VIDCONSOLE
bool "lcdputs and setcurs"
depends on VIDEO
default y
help
Enabling this will provide 'setcurs' and 'lcdputs' commands which
support cursor positioning and drawing strings on the video
console (framebuffer).
The name 'lcdputs' is a bit of a misnomer, but so named because the
video device is often an LCD.
config CMD_SELECT_FONT
bool "select font size"
depends on VIDEO
default n
help
Enabling this will provide 'font' command.
Allows font selection at runtime.
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 plat 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"
depends on !MX6ULL && !MX6SLL && !MX6SL
select IMX_HAB if ARCH_MX6 || ARCH_MX7 || ARCH_MX7ULP || ARCH_IMX8M
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_SCP03
bool "scp03 - SCP03 enable and rotate/provision operations"
depends on SCP03
help
This command provides access to a Trusted Application
running in a TEE to request Secure Channel Protocol 03
(SCP03) enablement and/or rotation of its SCP03 keys.
config CMD_TPM_V1
bool
config CMD_TPM_V2
bool
config CMD_TPM
bool "Enable the 'tpm' command"
depends on TPM_V1 || TPM_V2
select CMD_TPM_V1 if TPM_V1
select CMD_TPM_V2 if TPM_V2
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.
if CMD_TPM
config CMD_TPM_TEST
bool "Enable the 'tpm test' command"
depends on TPM_V1
help
This provides a a series of tests to confirm that the TPMv1.x 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.
endif
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_EROFS
bool "EROFS command support"
select FS_EROFS
help
Support for the EROFS fs
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_SQUASHFS
bool "SquashFS command support"
select FS_SQUASHFS
help
Enables SquashFS filesystem commands (e.g. load, ls).
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 JFFS2_DEV
string "Default device for JFFS2"
depends on CMD_JFFS2
default "nor0"
help
The default device to use with the jffs2 command.
config JFFS2_PART_OFFSET
hex "Default offset within flash to locate the JFFS2 image"
depends on CMD_JFFS2
default 0x0
help
The default offset within flash to locate the JFFS2 image.
config JFFS2_PART_SIZE
hex "Default size of JFFS2 partition"
depends on CMD_JFFS2
default 0xFFFFFFFF
help
The default size of the JFFS2 partition
config CMD_MTDPARTS
bool "MTD partition support"
depends on MTD
help
MTD partitioning tool support.
It is strongly encouraged to avoid using this command
anymore along with 'sf', 'nand', 'onenand'. One can still
declare the partitions in the mtdparts environment variable
but better use the MTD stack and the 'mtd' command instead.
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_MTDPARTS_SHOW_NET_SIZES
bool "Show net size (w/o bad blocks) of partitions"
depends on CMD_MTDPARTS
help
Adds two columns to the printed partition table showing the
effective usable size of a partition, if bad blocks are taken
into account.
config MTDIDS_DEFAULT
string "Default MTD IDs"
depends on MTD || SPI_FLASH
depends on !SYS_MTDPARTS_RUNTIME
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 MTD || SPI_FLASH
depends on !SYS_MTDPARTS_RUNTIME
help
Defines a default MTD partitioning scheme in the Linux MTD command
line partitions format
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_CBSYSINFO
bool "cbsysinfo"
depends on X86
default y if SYS_COREBOOT
help
This provides information about the coreboot sysinfo table stored in
memory by coreboot before jumping to U-Boot. It can be useful for
debugging the beaaviour of coreboot or U-Boot.
config CMD_CYCLIC
bool "cyclic - Show information about cyclic functions"
depends on CYCLIC
default y
help
This enables the 'cyclic' command which provides information about
cyclic execution functions. This infrastructure allows registering
functions to be executed cyclically, e.g. every 100ms. These commands
are supported:
cyclic list - list cyclic functions
cyclic cyclic demo <cycletime_ms> <delay_us> - register cyclic
demo function
See doc/develop/cyclic.rst for more details.
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_EVENT
bool "event - Show information about events"
depends on EVENT
default y if EVENT_DEBUG
help
This enables the 'event' command which provides information about
events and event-handler routines. This can help to device event
hadling.
config CMD_IRQ
bool "irq - Show information about interrupts"
depends on !ARM && !MIPS && !RISCV && !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"
depends on PPC
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
select GETOPT
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"
depends on TRACE
default y
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 analysis (e.g. using bootchart). See doc/README.trace for full
details.
config CMD_AVB
bool "avb - Android Verified Boot 2.0 operations"
depends on AVB_VERIFY
help
Enables a "avb" command to perform verification of partitions using
Android Verified Boot 2.0 functionality. It includes such subcommands:
avb init - initialize avb2 subsystem
avb read_rb - read rollback index
avb write_rb - write rollback index
avb is_unlocked - check device lock state
avb get_uuid - read and print uuid of a partition
avb read_part - read data from partition
avb read_part_hex - read data from partition and output to stdout
avb write_part - write data to partition
avb verify - run full verification chain
config CMD_STACKPROTECTOR_TEST
bool "Test command for stack protector"
depends on STACKPROTECTOR
help
Enable stackprot_test command
The stackprot_test command will force a stack overrun to test
the stack smashing detection mechanisms.
endmenu
config CMD_UBI
tristate "Enable UBI - Unsorted block images commands"
select MTD_UBI
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.
It is also strongly encouraged to also enable CONFIG_MTD to get full
partition support.
config CMD_UBI_RENAME
bool "Enable rename"
depends on CMD_UBI
help
Enable a "ubi" command to rename ubi volume:
ubi rename <oldname> <newname>
config CMD_UBIFS
tristate "Enable UBIFS - Unsorted block images filesystem commands"
depends on CMD_UBI
default y if CMD_UBI
select LZO
select GZIP
help
UBIFS is a file system for flash devices which works on top of UBI.
config MMC_SPEED_MODE_SET
bool "set speed mode using mmc command"
depends on CMD_MMC
default n
help
Enable setting speed mode using mmc rescan and mmc dev commands.
The speed mode is provided as the last argument in these commands
and is indicated using the index from enum bus_mode in
include/mmc.h. A speed mode can be set only if it has already
been enabled in the device tree.
config CMD_MESON
bool "Amlogic Meson commands"
depends on ARCH_MESON
default y
help
Enable useful commands for the Meson Soc family developed by Amlogic Inc.
endmenu
|