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1menu "Command line interface"
2
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3config CMDLINE
4 bool "Support U-Boot commands"
5 default y
6 help
7 Enable U-Boot's command-line functions. This provides a means
8 to enter commands into U-Boot for a wide variety of purposes. It
9 also allows scripts (containing commands) to be executed.
10 Various commands and command categorys can be indivdually enabled.
11 Depending on the number of commands enabled, this can add
12 substantially to the size of U-Boot.
13
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14config HUSH_PARSER
15 bool "Use hush shell"
302a6487 16 depends on CMDLINE
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17 help
18 This option enables the "hush" shell (from Busybox) as command line
19 interpreter, thus enabling powerful command line syntax like
20 if...then...else...fi conditionals or `&&' and '||'
21 constructs ("shell scripts").
22
23 If disabled, you get the old, much simpler behaviour with a somewhat
24 smaller memory footprint.
25
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26config SYS_PROMPT
27 string "Shell prompt"
28 default "=> "
29 help
30 This string is displayed in the command line to the left of the
31 cursor.
32
33menu "Autoboot options"
34
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35config AUTOBOOT
36 bool "Autoboot"
37 default y
38 help
39 This enables the autoboot. See doc/README.autoboot for detail.
40
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41config AUTOBOOT_KEYED
42 bool "Stop autobooting via specific input key / string"
43 default n
44 help
45 This option enables stopping (aborting) of the automatic
46 boot feature only by issuing a specific input key or
47 string. If not enabled, any input key will abort the
48 U-Boot automatic booting process and bring the device
49 to the U-Boot prompt for user input.
50
51config AUTOBOOT_PROMPT
52 string "Autoboot stop prompt"
53 depends on AUTOBOOT_KEYED
54 default "Autoboot in %d seconds\\n"
55 help
56 This string is displayed before the boot delay selected by
57 CONFIG_BOOTDELAY starts. If it is not defined there is no
58 output indicating that autoboot is in progress.
59
60 Note that this define is used as the (only) argument to a
61 printf() call, so it may contain '%' format specifications,
62 provided that it also includes, sepearated by commas exactly
63 like in a printf statement, the required arguments. It is
64 the responsibility of the user to select only such arguments
65 that are valid in the given context.
66
67config AUTOBOOT_ENCRYPTION
68 bool "Enable encryption in autoboot stopping"
69 depends on AUTOBOOT_KEYED
70 default n
71
72config AUTOBOOT_DELAY_STR
73 string "Delay autobooting via specific input key / string"
74 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
75 help
76 This option delays the automatic boot feature by issuing
77 a specific input key or string. If CONFIG_AUTOBOOT_DELAY_STR
78 or the environment variable "bootdelaykey" is specified
79 and this string is received from console input before
80 autoboot starts booting, U-Boot gives a command prompt. The
81 U-Boot prompt will time out if CONFIG_BOOT_RETRY_TIME is
82 used, otherwise it never times out.
83
84config AUTOBOOT_STOP_STR
85 string "Stop autobooting via specific input key / string"
86 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
87 help
88 This option enables stopping (aborting) of the automatic
89 boot feature only by issuing a specific input key or
90 string. If CONFIG_AUTOBOOT_STOP_STR or the environment
91 variable "bootstopkey" is specified and this string is
92 received from console input before autoboot starts booting,
93 U-Boot gives a command prompt. The U-Boot prompt never
94 times out, even if CONFIG_BOOT_RETRY_TIME is used.
95
96config AUTOBOOT_KEYED_CTRLC
97 bool "Enable Ctrl-C autoboot interruption"
98 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
99 default n
100 help
101 This option allows for the boot sequence to be interrupted
102 by ctrl-c, in addition to the "bootdelaykey" and "bootstopkey".
103 Setting this variable provides an escape sequence from the
104 limited "password" strings.
105
106config AUTOBOOT_STOP_STR_SHA256
107 string "Stop autobooting via SHA256 encrypted password"
108 depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION
109 help
110 This option adds the feature to only stop the autobooting,
111 and therefore boot into the U-Boot prompt, when the input
112 string / password matches a values that is encypted via
113 a SHA256 hash and saved in the environment.
114
115endmenu
116
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117source "cmd/fastboot/Kconfig"
118
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119config BUILD_BIN2C
120 bool
121
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122comment "Commands"
123
124menu "Info commands"
125
126config CMD_BDI
127 bool "bdinfo"
128 default y
129 help
130 Print board info
131
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132config CMD_CONFIG
133 bool "config"
134 select BUILD_BIN2C
135 default SANDBOX
136 help
137 Print ".config" contents.
138
139 If this option is enabled, the ".config" file contents are embedded
140 in the U-Boot image and can be printed on the console by the "config"
141 command. This provides information of which options are enabled on
142 the running U-Boot.
143
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144config CMD_CONSOLE
145 bool "coninfo"
146 default y
147 help
148 Print console devices and information.
149
150config CMD_CPU
151 bool "cpu"
152 help
153 Print information about available CPUs. This normally shows the
154 number of CPUs, type (e.g. manufacturer, architecture, product or
155 internal name) and clock frequency. Other information may be
156 available depending on the CPU driver.
157
158config CMD_LICENSE
159 bool "license"
d726f225 160 select BUILD_BIN2C
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161 help
162 Print GPL license text
163
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164config CMD_REGINFO
165 bool "reginfo"
166 depends on PPC
167 help
168 Register dump
169
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170endmenu
171
172menu "Boot commands"
173
174config CMD_BOOTD
175 bool "bootd"
176 default y
177 help
178 Run the command stored in the environment "bootcmd", i.e.
179 "bootd" does the same thing as "run bootcmd".
180
181config CMD_BOOTM
182 bool "bootm"
183 default y
184 help
185 Boot an application image from the memory.
186
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187config CMD_BOOTZ
188 bool "bootz"
189 help
190 Boot the Linux zImage
191
26959271
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192config CMD_BOOTI
193 bool "booti"
194 depends on ARM64
195 default y
196 help
197 Boot an AArch64 Linux Kernel image from memory.
198
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199config CMD_BOOTEFI
200 bool "bootefi"
201 depends on EFI_LOADER
202 default y
203 help
204 Boot an EFI image from memory.
205
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206config CMD_BOOTEFI_HELLO_COMPILE
207 bool "Compile a standard EFI hello world binary for testing"
208 depends on CMD_BOOTEFI && (ARM || X86)
209 default y
210 help
211 This compiles a standard EFI hello world application with U-Boot so
212 that it can be used with the test/py testing framework. This is useful
213 for testing that EFI is working at a basic level, and for bringing
214 up EFI support on a new architecture.
215
216 No additional space will be required in the resulting U-Boot binary
217 when this option is enabled.
218
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219config CMD_BOOTEFI_HELLO
220 bool "Allow booting a standard EFI hello world for testing"
95b62b2e 221 depends on CMD_BOOTEFI_HELLO_COMPILE
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222 help
223 This adds a standard EFI hello world application to U-Boot so that
224 it can be used with the 'bootefi hello' command. This is useful
225 for testing that EFI is working at a basic level, and for bringing
226 up EFI support on a new architecture.
227
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228source lib/efi_selftest/Kconfig
229
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230config CMD_BOOTMENU
231 bool "bootmenu"
232 select MENU
233 help
234 Add an ANSI terminal boot menu command.
235
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236config CMD_ELF
237 bool "bootelf, bootvx"
238 default y
239 help
240 Boot an ELF/vxWorks image from the memory.
241
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242config CMD_FDT
243 bool "Flattened Device Tree utility commands"
244 default y
245 depends on OF_LIBFDT
246 help
247 Do FDT related setup before booting into the Operating System.
248
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249config CMD_GO
250 bool "go"
251 default y
252 help
253 Start an application at a given address.
254
255config CMD_RUN
256 bool "run"
257 default y
258 help
259 Run the command in the given environment variable.
260
261config CMD_IMI
262 bool "iminfo"
263 default y
264 help
265 Print header information for application image.
266
267config CMD_IMLS
268 bool "imls"
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269 help
270 List all images found in flash
271
272config CMD_XIMG
273 bool "imxtract"
274 default y
275 help
276 Extract a part of a multi-image.
277
278config CMD_POWEROFF
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279 bool "poweroff"
280 help
281 Poweroff/Shutdown the system
72a8cf8d 282
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283config CMD_SPL
284 bool "spl export - Export boot information for Falcon boot"
285 depends on SPL
286 help
287 Falcon mode allows booting directly from SPL into an Operating
288 System such as Linux, thus skipping U-Boot proper. See
289 doc/README.falcon for full information about how to use this
290 command.
291
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292config CMD_SPL_NAND_OFS
293 hex "Offset of OS command line args for Falcon-mode NAND boot"
294 depends on CMD_SPL
295 default 0
296 help
297 This provides the offset of the command line arguments for Linux
298 when booting from NAND in Falcon mode. See doc/README.falcon
299 for full information about how to use this option (and also see
300 board/gateworks/gw_ventana/README for an example).
301
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302config CMD_SPL_WRITE_SIZE
303 hex "Size of argument area"
304 depends on CMD_SPL
305 default 0x2000
306 help
307 This provides the size of the command-line argument area in NAND
308 flash used by Falcon-mode boot. See the documentation until CMD_SPL
309 for detail.
310
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311config CMD_THOR_DOWNLOAD
312 bool "thor - TIZEN 'thor' download"
313 help
314 Implements the 'thor' download protocol. This is a way of
315 downloading a software update over USB from an attached host.
316 There is no documentation about this within the U-Boot source code
317 but you should be able to find something on the interwebs.
318
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319config CMD_ZBOOT
320 bool "zboot - x86 boot command"
321 help
322 With x86 machines it is common to boot a bzImage file which
323 contains both a kernel and a setup.bin file. The latter includes
324 configuration information from the dark ages which x86 boards still
325 need to pick things out of.
326
327 Consider using FIT in preference to this since it supports directly
328 booting both 32- and 64-bit kernels, as well as secure boot.
329 Documentation is available in doc/uImage.FIT/x86-fit-boot.txt
330
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331endmenu
332
333menu "Environment commands"
334
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335config CMD_ASKENV
336 bool "ask for env variable"
337 help
338 Ask for environment variable
339
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340config CMD_EXPORTENV
341 bool "env export"
342 default y
343 help
344 Export environments.
345
346config CMD_IMPORTENV
347 bool "env import"
348 default y
349 help
350 Import environments.
351
352config CMD_EDITENV
353 bool "editenv"
354 default y
355 help
356 Edit environment variable.
357
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358config CMD_GREPENV
359 bool "search env"
360 help
361 Allow for searching environment variables
362
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363config CMD_SAVEENV
364 bool "saveenv"
365 default y
366 help
367 Save all environment variables into the compiled-in persistent
368 storage.
369
370config CMD_ENV_EXISTS
371 bool "env exists"
372 default y
373 help
374 Check if a variable is defined in the environment for use in
375 shell scripting.
376
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377config CMD_ENV_CALLBACK
378 bool "env callbacks - print callbacks and their associated variables"
379 help
380 Some environment variable have callbacks defined by
381 U_BOOT_ENV_CALLBACK. These are called when the variable changes.
382 For example changing "baudrate" adjust the serial baud rate. This
383 command lists the currently defined callbacks.
384
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385config CMD_ENV_FLAGS
386 bool "env flags -print variables that have non-default flags"
387 help
388 Some environment variables have special flags that control their
389 behaviour. For example, serial# can only be written once and cannot
390 be deleted. This command shows the variables that have special
391 flags.
392
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393endmenu
394
395menu "Memory commands"
396
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397config CMD_CRC32
398 bool "crc32"
d70f919e 399 select HASH
b0243608 400 default n if ARCH_SUNXI
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401 default y
402 help
403 Compute CRC32.
404
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405config CRC32_VERIFY
406 bool "crc32 -v"
407 depends on CMD_CRC32
408 help
409 Add -v option to verify data against a crc32 checksum.
410
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411config CMD_EEPROM
412 bool "eeprom - EEPROM subsystem"
413 help
414 (deprecated, needs conversion to driver model)
415 Provides commands to read and write EEPROM (Electrically Erasable
416 Programmable Read Only Memory) chips that are connected over an
417 I2C bus.
418
419config CMD_EEPROM_LAYOUT
420 bool "Enable layout-aware eeprom commands"
421 depends on CMD_EEPROM
422 help
423 (deprecated, needs conversion to driver model)
424 When enabled, additional eeprom sub-commands become available.
425
426 eeprom print - prints the contents of the eeprom in a human-readable
427 way (eeprom layout fields, and data formatted to be fit for human
428 consumption).
429
430 eeprom update - allows user to update eeprom fields by specifying
431 the field name, and providing the new data in a human readable format
432 (same format as displayed by the eeprom print command).
433
434 Both commands can either auto detect the layout, or be told which
435 layout to use.
436
437 Feature API:
438 __weak int parse_layout_version(char *str)
439 - override to provide your own layout name parsing
440 __weak void __eeprom_layout_assign(struct eeprom_layout *layout,
441 int layout_version);
442 - override to setup the layout metadata based on the version
443 __weak int eeprom_layout_detect(unsigned char *data)
444 - override to provide your own algorithm for detecting layout
445 version
446 eeprom_field.c
447 - contains various printing and updating functions for common
448 types of eeprom fields. Can be used for defining
449 custom layouts.
450
451config EEPROM_LAYOUT_HELP_STRING
452 string "Tells user what layout names are supported"
453 depends on CMD_EEPROM_LAYOUT
454 default "<not defined>"
455 help
456 Help printed with the LAYOUT VERSIONS part of the 'eeprom'
457 command's help.
458
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459config LOOPW
460 bool "loopw"
461 help
462 Infinite write loop on address range
463
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464config CMD_MD5SUM
465 bool "md5sum"
466 default n
467 select MD5
468 help
469 Compute MD5 checksum.
470
221a949e 471config MD5SUM_VERIFY
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472 bool "md5sum -v"
473 default n
474 depends on CMD_MD5SUM
475 help
476 Add -v option to verify data against an MD5 checksum.
477
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478config CMD_MEMINFO
479 bool "meminfo"
221a949e 480 help
ba71be54 481 Display memory information.
221a949e 482
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483config CMD_MEMORY
484 bool "md, mm, nm, mw, cp, cmp, base, loop"
485 default y
72a8cf8d 486 help
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487 Memory commands.
488 md - memory display
489 mm - memory modify (auto-incrementing address)
490 nm - memory modify (constant address)
491 mw - memory write (fill)
492 cp - memory copy
493 cmp - memory compare
494 base - print or set address offset
495 loop - initialize loop on address range
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496
497config CMD_MEMTEST
498 bool "memtest"
499 help
500 Simple RAM read/write test.
501
502config CMD_MX_CYCLIC
503 bool "mdc, mwc"
504 help
505 mdc - memory display cyclic
506 mwc - memory write cyclic
507
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508config CMD_SHA1SUM
509 bool "sha1sum"
510 select SHA1
72a8cf8d 511 help
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512 Compute SHA1 checksum.
513
514config SHA1SUM_VERIFY
515 bool "sha1sum -v"
516 depends on CMD_SHA1SUM
517 help
518 Add -v option to verify data against a SHA1 checksum.
72a8cf8d 519
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520config CMD_STRINGS
521 bool "strings - display strings in memory"
522 help
523 This works similarly to the Unix 'strings' command except that it
524 works with a memory range. String of printable characters found
525 within the range are displayed. The minimum number of characters
526 for a sequence to be considered a string can be provided.
527
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528endmenu
529
530menu "Compression commands"
531
532config CMD_LZMADEC
533 bool "lzmadec"
99e46dfc 534 default y if CMD_BOOTI
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535 select LZMA
536 help
537 Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm)
538 image from memory.
539
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540config CMD_UNZIP
541 bool "unzip"
3b50382a 542 default n if ARCH_SUNXI
99e46dfc 543 default y if CMD_BOOTI
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544 help
545 Uncompress a zip-compressed memory region.
546
547config CMD_ZIP
548 bool "zip"
549 help
550 Compress a memory region with zlib deflate method.
551
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552endmenu
553
554menu "Device access commands"
555
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556config CMD_ARMFLASH
557 #depends on FLASH_CFI_DRIVER
558 bool "armflash"
559 help
560 ARM Ltd reference designs flash partition access
561
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562config CMD_CLK
563 bool "clk - Show clock frequencies"
564 help
565 (deprecated)
566 Shows clock frequences by calling a sock_clk_dump() hook function.
567 This is depreated in favour of using the CLK uclass and accessing
568 clock values from associated drivers. However currently no command
569 exists for this.
570
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571config CMD_DEMO
572 bool "demo - Demonstration commands for driver model"
573 depends on DM
574 help
575 Provides a 'demo' command which can be used to play around with
576 driver model. To use this properly you will need to enable one or
577 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
578 Otherwise you will always get an empty list of devices. The demo
579 devices are defined in the sandbox device tree, so the easiest
580 option is to use sandbox and pass the -d point to sandbox's
581 u-boot.dtb file.
582
583config CMD_DFU
584 bool "dfu"
585 select USB_FUNCTION_DFU
586 help
587 Enables the command "dfu" which is used to have U-Boot create a DFU
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588 class device via USB. This command requires that the "dfu_alt_info"
589 environment variable be set and define the alt settings to expose to
590 the host.
0c19b4d1 591
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592config CMD_DM
593 bool "dm - Access to driver model information"
594 depends on DM
595 default y
596 help
597 Provides access to driver model data structures and information,
598 such as a list of devices, list of uclasses and the state of each
599 device (e.g. activated). This is not required for operation, but
600 can be useful to see the state of driver model for debugging or
601 interest.
602
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603config CMD_FDC
604 bool "fdcboot - Boot from floppy device"
72a8cf8d 605 help
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606 The 'fdtboot' command allows booting an image from a floppy disk.
607
608config CMD_FLASH
609 bool "flinfo, erase, protect"
610 default y
611 help
612 NOR flash support.
613 flinfo - print FLASH memory information
614 erase - FLASH memory
615 protect - enable or disable FLASH write protection
616
617config CMD_FPGA
618 bool "fpga"
619 default y
620 help
621 FPGA support.
622
623config CMD_FPGA_LOADBP
624 bool "fpga loadbp - load partial bitstream (Xilinx only)"
625 depends on CMD_FPGA
626 help
627 Supports loading an FPGA device from a bitstream buffer containing
628 a partial bitstream.
629
630config CMD_FPGA_LOADFS
631 bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
632 depends on CMD_FPGA
633 help
634 Supports loading an FPGA device from a FAT filesystem.
635
636config CMD_FPGA_LOADMK
637 bool "fpga loadmk - load bitstream from image"
638 depends on CMD_FPGA
639 help
640 Supports loading an FPGA device from a image generated by mkimage.
641
642config CMD_FPGA_LOADP
643 bool "fpga loadp - load partial bitstream"
644 depends on CMD_FPGA
645 help
646 Supports loading an FPGA device from a bitstream buffer containing
647 a partial bitstream.
648
649config CMD_FPGAD
650 bool "fpgad - dump FPGA registers"
651 help
652 (legacy, needs conversion to driver model)
653 Provides a way to dump FPGA registers by calling the board-specific
654 fpga_get_reg() function. This functions similarly to the 'md'
655 command.
656
657config CMD_FUSE
658 bool "fuse - support for the fuse subssystem"
659 help
660 (deprecated - needs conversion to driver model)
661 This allows reading, sensing, programming or overriding fuses
662 which control the behaviour of the device. The command uses the
663 fuse_...() API.
664
665config CMD_GPIO
666 bool "gpio"
667 help
668 GPIO support.
669
670config CMD_GPT
671 bool "GPT (GUID Partition Table) command"
672 select PARTITION_UUIDS
673 select EFI_PARTITION
47738acc 674 imply RANDOM_UUID
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675 help
676 Enable the 'gpt' command to ready and write GPT style partition
677 tables.
678
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679config RANDOM_UUID
680 bool "GPT Random UUID generation"
681 help
682 Enable the generation of partitions with random UUIDs if none
683 are provided.
684
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685config CMD_GPT_RENAME
686 bool "GPT partition renaming commands"
687 depends on CMD_GPT
688 help
689 Enables the 'gpt' command to interchange names on two GPT
690 partitions via the 'gpt swap' command or to rename single
691 partitions via the 'rename' command.
72a8cf8d 692
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693config CMD_IDE
694 bool "ide - Support for IDE drivers"
fc843a02 695 select IDE
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696 help
697 Provides an 'ide' command which allows accessing the IDE drive,
698 reseting the IDE interface, printing the partition table and
699 geting device info. It also enables the 'diskboot' command which
700 permits booting from an IDE drive.
701
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702config CMD_IO
703 bool "io - Support for performing I/O accesses"
704 help
705 Provides an 'iod' command to display I/O space and an 'iow' command
706 to write values to the I/O space. This can be useful for manually
707 checking the state of devices during boot when debugging device
708 drivers, etc.
709
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710config CMD_IOTRACE
711 bool "iotrace - Support for tracing I/O activity"
712 help
713 Provides an 'iotrace' command which supports recording I/O reads and
714 writes in a trace buffer in memory . It also maintains a checksum
715 of the trace records (even if space is exhausted) so that the
716 sequence of I/O accesses can be verified.
717
718 When debugging drivers it is useful to see what I/O accesses were
719 done and in what order.
720
721 Even if the individual accesses are of little interest it can be
722 useful to verify that the access pattern is consistent each time
723 an operation is performed. In this case a checksum can be used to
724 characterise the operation of a driver. The checksum can be compared
725 across different runs of the operation to verify that the driver is
726 working properly.
727
728 In particular, when performing major refactoring of the driver, where
729 the access pattern should not change, the checksum provides assurance
730 that the refactoring work has not broken the driver.
731
732 This works by sneaking into the io.h heder for an architecture and
733 redirecting I/O accesses through iotrace's tracing mechanism.
734
735 For now no commands are provided to examine the trace buffer. The
736 format is fairly simple, so 'md' is a reasonable substitute.
737
738 Note: The checksum feature is only useful for I/O regions where the
739 contents do not change outside of software control. Where this is not
740 suitable you can fall back to manually comparing the addresses. It
741 might be useful to enhance tracing to only checksum the accesses and
742 not the data read/written.
743
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744config CMD_I2C
745 bool "i2c"
746 help
747 I2C support.
748
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749config CMD_LOADB
750 bool "loadb"
197e0be7 751 default n if ARCH_SUNXI
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752 default y
753 help
754 Load a binary file over serial line.
755
756config CMD_LOADS
757 bool "loads"
e302ede7 758 default n if ARCH_SUNXI
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759 default y
760 help
761 Load an S-Record file over serial line
762
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DN
763config CMD_MMC
764 bool "mmc"
765 help
766 MMC memory mapped support.
767
72a8cf8d
SG
768config CMD_NAND
769 bool "nand"
522c282f 770 default y if NAND_SUNXI
72a8cf8d
SG
771 help
772 NAND support.
773
e915d201
BB
774if CMD_NAND
775config CMD_NAND_TRIMFFS
776 bool "nand write.trimffs"
d482a8df 777 default y if ARCH_SUNXI
e915d201
BB
778 help
779 Allows one to skip empty pages when flashing something on a NAND.
780
781config CMD_NAND_LOCK_UNLOCK
782 bool "nand lock/unlock"
783 help
784 NAND locking support.
785
786config CMD_NAND_TORTURE
787 bool "nand torture"
788 help
789 NAND torture support.
790
791endif # CMD_NAND
792
0adc38be
ZZ
793config CMD_NVME
794 bool "nvme"
795 depends on NVME
796 default y if NVME
797 help
798 NVM Express device support
799
f38c5f52
SG
800config CMD_MMC_SPI
801 bool "mmc_spi - Set up MMC SPI device"
802 help
803 Provides a way to set up an MMC (Multimedia Card) SPI (Serial
804 Peripheral Interface) device. The device provides a means of
805 accessing an MMC device via SPI using a single data line, limited
806 to 20MHz. It is useful since it reduces the amount of protocol code
807 required.
808
978f0854
SG
809config CMD_ONENAND
810 bool "onenand - access to onenand device"
811 help
812 OneNAND is a brand of NAND ('Not AND' gate) flash which provides
813 various useful features. This command allows reading, writing,
814 and erasing blocks. It allso provides a way to show and change
815 bad blocks, and test the device.
816
b331cd62
PD
817config CMD_PART
818 bool "part"
819 select PARTITION_UUIDS
820 help
821 Read and display information about the partition table on
822 various media.
823
6500ec7a
SG
824config CMD_PCI
825 bool "pci - Access PCI devices"
826 help
827 Provide access to PCI (Peripheral Interconnect Bus), a type of bus
828 used on some devices to allow the CPU to communicate with its
829 peripherals. Sub-commands allow bus enumeration, displaying and
830 changing configuration space and a few other features.
831
7f666555
SG
832config CMD_PCMCIA
833 bool "pinit - Set up PCMCIA device"
834 help
835 Provides a means to initialise a PCMCIA (Personal Computer Memory
836 Card International Association) device. This is an old standard from
837 about 1990. These devices are typically removable memory or network
838 cards using a standard 68-pin connector.
839
b75dfd2d
SG
840config CMD_READ
841 bool "read - Read binary data from a partition"
842 help
843 Provides low-level access to the data in a partition.
844
0c19b4d1
SG
845config CMD_REMOTEPROC
846 bool "remoteproc"
847 depends on REMOTEPROC
848 help
849 Support for Remote Processor control
850
851config CMD_SATA
852 bool "sata - Access SATA subsystem"
853 select SATA
854 help
855 SATA (Serial Advanced Technology Attachment) is a serial bus
856 standard for connecting to hard drives and other storage devices.
857 This command provides information about attached devices and allows
858 reading, writing and other operations.
859
860 SATA replaces PATA (originally just ATA), which stands for Parallel AT
861 Attachment, where AT refers to an IBM AT (Advanced Technology)
862 computer released in 1984.
863
15dc63d6
SG
864config CMD_SAVES
865 bool "saves - Save a file over serial in S-Record format"
866 help
867 Provides a way to save a binary file using the Motorola S-Record
868 format over the serial line.
869
efce2442
SG
870config CMD_SDRAM
871 bool "sdram - Print SDRAM configuration information"
872 help
873 Provides information about attached SDRAM. This assumed that the
874 SDRAM has an EEPROM with information that can be read using the
875 I2C bus. This is only available on some boards.
876
72a8cf8d
SG
877config CMD_SF
878 bool "sf"
879 help
880 SPI Flash support
881
719d36ee
SG
882config CMD_SF_TEST
883 bool "sf test - Allow testing of SPI flash"
884 help
885 Provides a way to test that SPI flash is working correctly. The
886 test is destructive, in that an area of SPI flash must be provided
887 for the test to use. Performance information is also provided,
888 measuring the performance of reading, writing and erasing in
889 Mbps (Million Bits Per Second). This value should approximately
890 equal the SPI bus speed for a single-bit-wide SPI bus, assuming
891 everything is working properly.
892
72a8cf8d
SG
893config CMD_SPI
894 bool "sspi"
895 help
896 SPI utility command.
897
5605aa8a
SG
898config CMD_TSI148
899 bool "tsi148 - Command to access tsi148 device"
900 help
901 This provides various sub-commands to initialise and configure the
902 Turndra tsi148 device. See the command help for full details.
903
2a242e3e
SG
904config CMD_UNIVERSE
905 bool "universe - Command to set up the Turndra Universe controller"
906 help
907 This allows setting up the VMEbus provided by this controller.
908 See the command help for full details.
909
72a8cf8d
SG
910config CMD_USB
911 bool "usb"
912 help
913 USB support.
914
2f005695
SA
915config CMD_USB_SDP
916 bool "sdp"
917 select USB_FUNCTION_SDP
918 help
919 Enables the command "sdp" which is used to have U-Boot emulating the
920 Serial Download Protocol (SDP) via USB.
453c95e0
EC
921config CMD_ROCKUSB
922 bool "rockusb"
923 depends on USB_FUNCTION_ROCKUSB
924 help
925 Rockusb protocol is widely used by Rockchip SoC based devices. It can
926 read/write info, image to/from devices. This enable rockusb command
927 support to communication with rockusb device. for more detail about
928 this command, please read doc/README.rockusb.
2f005695 929
ab8243e4
DN
930config CMD_USB_MASS_STORAGE
931 bool "UMS usb mass storage"
e4d4604a 932 select USB_FUNCTION_MASS_STORAGE
ab8243e4
DN
933 help
934 USB mass storage support
935
72a8cf8d
SG
936endmenu
937
938
939menu "Shell scripting commands"
940
941config CMD_ECHO
942 bool "echo"
943 default y
944 help
945 Echo args to console
946
947config CMD_ITEST
948 bool "itest"
949 default y
950 help
951 Return true/false on integer compare.
952
953config CMD_SOURCE
954 bool "source"
955 default y
956 help
957 Run script from memory
958
959config CMD_SETEXPR
960 bool "setexpr"
961 default y
962 help
963 Evaluate boolean and math expressions and store the result in an env
964 variable.
965 Also supports loading the value at a memory location into a variable.
966 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
967
968endmenu
969
970menu "Network commands"
971
972config CMD_NET
973 bool "bootp, tftpboot"
974 select NET
975 default y
976 help
977 Network commands.
978 bootp - boot image via network using BOOTP/TFTP protocol
979 tftpboot - boot image via network using TFTP protocol
980
981config CMD_TFTPPUT
982 bool "tftp put"
983 help
984 TFTP put command, for uploading files to a server
985
986config CMD_TFTPSRV
987 bool "tftpsrv"
988 help
989 Act as a TFTP server and boot the first received file
990
991config CMD_RARP
992 bool "rarpboot"
993 help
994 Boot image via network using RARP/TFTP protocol
995
996config CMD_DHCP
997 bool "dhcp"
998 help
999 Boot image via network using DHCP/TFTP protocol
1000
bfb380b3
YM
1001config CMD_PXE
1002 bool "pxe"
1003 select MENU
1004 help
1005 Boot image via network using PXE protocol
1006
72a8cf8d
SG
1007config CMD_NFS
1008 bool "nfs"
1009 default y
1010 help
1011 Boot image via network using NFS protocol.
1012
ab8243e4
DN
1013config CMD_MII
1014 bool "mii"
1015 help
1016 Enable MII utility commands.
1017
72a8cf8d
SG
1018config CMD_PING
1019 bool "ping"
1020 help
1021 Send ICMP ECHO_REQUEST to network host
1022
1023config CMD_CDP
1024 bool "cdp"
1025 help
1026 Perform CDP network configuration
1027
1028config CMD_SNTP
1029 bool "sntp"
1030 help
1031 Synchronize RTC via network
1032
1033config CMD_DNS
1034 bool "dns"
1035 help
1036 Lookup the IP of a hostname
1037
1038config CMD_LINK_LOCAL
1039 bool "linklocal"
1040 help
1041 Acquire a network IP address using the link-local protocol
1042
ef072200
SG
1043config CMD_ETHSW
1044 bool "ethsw"
1045 help
1046 Allow control of L2 Ethernet switch commands. These are supported
1047 by the vsc9953 Ethernet driver at present. Sub-commands allow
1048 operations such as enabling / disabling a port and
1049 viewing/maintaining the filtering database (FDB)
1050
72a8cf8d
SG
1051endmenu
1052
1053menu "Misc commands"
1054
0f710258
SG
1055config CMD_BMP
1056 bool "Enable 'bmp' command"
1057 depends on LCD || DM_VIDEO || VIDEO
1058 help
1059 This provides a way to obtain information about a BMP-format iamge
1060 and to display it. BMP (which presumably stands for BitMaP) is a
1061 file format defined by Microsoft which supports images of various
1062 depths, formats and compression methods. Headers on the file
1063 determine the formats used. This command can be used by first loading
1064 the image into RAM, then using this command to look at it or display
1065 it.
1066
4893e34b
SG
1067config CMD_BSP
1068 bool "Enable board-specific commands"
1069 help
1070 (deprecated: instead, please define a Kconfig option for each command)
1071
1072 Some boards have board-specific commands which are only enabled
1073 during developemnt and need to be turned off for production. This
1074 option provides a way to control this. The commands that are enabled
1075 vary depending on the board.
1076
cd3d4880
TM
1077config CMD_BKOPS_ENABLE
1078 bool "mmc bkops enable"
1079 depends on CMD_MMC
1080 default n
1081 help
1082 Enable command for setting manual background operations handshake
1083 on a eMMC device. The feature is optionally available on eMMC devices
1084 conforming to standard >= 4.41.
1085
e40cf34a
EN
1086config CMD_BLOCK_CACHE
1087 bool "blkcache - control and stats for block cache"
1088 depends on BLOCK_CACHE
1089 default y if BLOCK_CACHE
1090 help
1091 Enable the blkcache command, which can be used to control the
1092 operation of the cache functions.
1093 This is most useful when fine-tuning the operation of the cache
1094 during development, but also allows the cache to be disabled when
1095 it might hurt performance (e.g. when using the ums command).
1096
ab8243e4
DN
1097config CMD_CACHE
1098 bool "icache or dcache"
1099 help
1100 Enable the "icache" and "dcache" commands
1101
93d66ee5
SG
1102config CMD_DISPLAY
1103 bool "Enable the 'display' command, for character displays"
1104 help
1105 (this needs porting to driver model)
1106 This enables the 'display' command which allows a string to be
1107 displayed on a simple board-specific display. Implement
1108 display_putc() to use it.
1109
ffe2052d
SG
1110config CMD_LED
1111 bool "led"
1112 default y if LED
1113 help
1114 Enable the 'led' command which allows for control of LEDs supported
1115 by the board. The LEDs can be listed with 'led list' and controlled
1116 with led on/off/togle/blink. Any LED drivers can be controlled with
1117 this command, e.g. led_gpio.
1118
c9032ce1
CP
1119config CMD_DATE
1120 bool "date"
1121 default y if DM_RTC
1122 help
1123 Enable the 'date' command for getting/setting the time/date in RTC
1124 devices.
1125
72a8cf8d
SG
1126config CMD_TIME
1127 bool "time"
1128 help
1129 Run commands and summarize execution time.
1130
d91a9d7f
SG
1131config CMD_GETTIME
1132 bool "gettime - read elapsed time"
1133 help
1134 Enable the 'gettime' command which reads the elapsed time since
1135 U-Boot started running. This shows the time in seconds and
1136 milliseconds. See also the 'bootstage' command which provides more
1137 flexibility for boot timing.
1138
72a8cf8d
SG
1139# TODO: rename to CMD_SLEEP
1140config CMD_MISC
1141 bool "sleep"
07dc22dd 1142 default n if ARCH_SUNXI
72a8cf8d
SG
1143 default y
1144 help
1145 Delay execution for some time
1146
1147config CMD_TIMER
1148 bool "timer"
1149 help
1150 Access the system timer.
1151
72a8cf8d
SG
1152config CMD_SOUND
1153 bool "sound"
1154 depends on SOUND
1155 help
1156 This provides basic access to the U-Boot's sound support. The main
1157 feature is to play a beep.
1158
1159 sound init - set up sound system
1160 sound play - play a sound
1161
18686590 1162config CMD_QFW
dd6f3abb 1163 bool "qfw"
fcf5c041 1164 select QFW
dd6f3abb
TR
1165 help
1166 This provides access to the QEMU firmware interface. The main
1167 feature is to allow easy loading of files passed to qemu-system
1168 via -kernel / -initrd
fa61ef6b
KP
1169
1170source "cmd/mvebu/Kconfig"
1171
3cef3b31
SG
1172config CMD_TERMINAL
1173 bool "terminal - provides a way to attach a serial terminal"
1174 help
1175 Provides a 'cu'-like serial terminal command. This can be used to
1176 access other serial ports from the system console. The terminal
1177 is very simple with no special processing of characters. As with
1178 cu, you can press ~. (tilde followed by period) to exit.
1179
1aa4e8d0
SG
1180config CMD_UUID
1181 bool "uuid, guid - generation of unique IDs"
1182 help
1183 This enables two commands:
1184
1185 uuid - generate random Universally Unique Identifier
1186 guid - generate Globally Unique Identifier based on random UUID
1187
1188 The two commands are very similar except for the endianness of the
1189 output.
1190
72a8cf8d
SG
1191endmenu
1192
5cd9661d
LV
1193source "cmd/ti/Kconfig"
1194
72a8cf8d
SG
1195config CMD_BOOTSTAGE
1196 bool "Enable the 'bootstage' command"
1197 depends on BOOTSTAGE
1198 help
1199 Add a 'bootstage' command which supports printing a report
1200 and un/stashing of bootstage data.
1201
1202menu "Power commands"
1203config CMD_PMIC
1204 bool "Enable Driver Model PMIC command"
1205 depends on DM_PMIC
1206 help
1207 This is the pmic command, based on a driver model pmic's API.
1208 Command features are unchanged:
1209 - list - list pmic devices
1210 - pmic dev <id> - show or [set] operating pmic device (NEW)
1211 - pmic dump - dump registers
1212 - pmic read address - read byte of register at address
1213 - pmic write address - write byte to register at address
1214 The only one change for this command is 'dev' subcommand.
1215
1216config CMD_REGULATOR
1217 bool "Enable Driver Model REGULATOR command"
1218 depends on DM_REGULATOR
1219 help
1220 This command is based on driver model regulator's API.
1221 User interface features:
1222 - list - list regulator devices
1223 - regulator dev <id> - show or [set] operating regulator device
1224 - regulator info - print constraints info
1225 - regulator status - print operating status
1226 - regulator value <val] <-f> - print/[set] voltage value [uV]
1227 - regulator current <val> - print/[set] current value [uA]
1228 - regulator mode <id> - print/[set] operating mode id
1229 - regulator enable - enable the regulator output
1230 - regulator disable - disable the regulator output
1231
1232 The '-f' (force) option can be used for set the value which exceeds
1233 the limits, which are found in device-tree and are kept in regulator's
1234 uclass platdata structure.
1235
1236endmenu
1237
1238menu "Security commands"
b1a873df
SG
1239config CMD_AES
1240 bool "Enable the 'aes' command"
1241 select AES
1242 help
1243 This provides a means to encrypt and decrypt data using the AES
1244 (Advanced Encryption Standard). This algorithm uses a symetric key
1245 and is widely used as a streaming cipher. Different key lengths are
1246 supported by the algorithm but this command only supports 128 bits
1247 at present.
1248
c04b9b34
SG
1249config CMD_BLOB
1250 bool "Enable the 'blob' command"
1251 help
1252 This is used with the Freescale secure boot mechanism.
1253
1254 Freescale's SEC block has built-in Blob Protocol which provides
1255 a method for protecting user-defined data across system power
1256 cycles. SEC block protects data in a data structure called a Blob,
1257 which provides both confidentiality and integrity protection.
1258
1259 Encapsulating data as a blob
1260 Each time that the Blob Protocol is used to protect data, a
1261 different randomly generated key is used to encrypt the data.
1262 This random key is itself encrypted using a key which is derived
1263 from SoC's non-volatile secret key and a 16 bit Key identifier.
1264 The resulting encrypted key along with encrypted data is called a
1265 blob. The non-volatile secure key is available for use only during
1266 secure boot.
1267
1268 During decapsulation, the reverse process is performed to get back
1269 the original data.
1270
1271 Sub-commands:
1272 blob enc - encapsulating data as a cryptgraphic blob
1273 blob dec - decapsulating cryptgraphic blob to get the data
1274
1275 Syntax:
1276
1277 blob enc src dst len km
1278
1279 Encapsulate and create blob of data $len bytes long
1280 at address $src and store the result at address $dst.
1281 $km is the 16 byte key modifier is also required for
1282 generation/use as key for cryptographic operation. Key
1283 modifier should be 16 byte long.
1284
1285 blob dec src dst len km
1286
1287 Decapsulate the blob of data at address $src and
1288 store result of $len byte at addr $dst.
1289 $km is the 16 byte key modifier is also required for
1290 generation/use as key for cryptographic operation. Key
1291 modifier should be 16 byte long.
1292
551c3934
SG
1293config CMD_HASH
1294 bool "Support 'hash' command"
d70f919e 1295 select HASH
551c3934
SG
1296 help
1297 This provides a way to hash data in memory using various supported
1298 algorithms (such as SHA1, MD5, CRC32). The computed digest can be
1299 saved to memory or to an environment variable. It is also possible
1300 to verify a hash against data in memory.
1301
221a949e
DT
1302config HASH_VERIFY
1303 bool "hash -v"
1304 depends on CMD_HASH
1305 help
1306 Add -v option to verify data against a hash.
1307
72a8cf8d
SG
1308config CMD_TPM
1309 bool "Enable the 'tpm' command"
1310 depends on TPM
1311 help
1312 This provides a means to talk to a TPM from the command line. A wide
1313 range of commands if provided - see 'tpm help' for details. The
1314 command requires a suitable TPM on your board and the correct driver
1315 must be enabled.
1316
1317config CMD_TPM_TEST
1318 bool "Enable the 'tpm test' command"
1319 depends on CMD_TPM
1320 help
1321 This provides a a series of tests to confirm that the TPM is working
1322 correctly. The tests cover initialisation, non-volatile RAM, extend,
1323 global lock and checking that timing is within expectations. The
1324 tests pass correctly on Infineon TPMs but may need to be adjusted
1325 for other devices.
1326
1327endmenu
bfeba017
MF
1328
1329menu "Firmware commands"
1330config CMD_CROS_EC
1331 bool "Enable crosec command"
1332 depends on CROS_EC
1333 default y
1334 help
1335 Enable command-line access to the Chrome OS EC (Embedded
1336 Controller). This provides the 'crosec' command which has
1337 a number of sub-commands for performing EC tasks such as
1338 updating its flash, accessing a small saved context area
1339 and talking to the I2C bus behind the EC (if there is one).
1340endmenu
72a8cf8d 1341
ab8243e4 1342menu "Filesystem commands"
9d845509
MB
1343config CMD_BTRFS
1344 bool "Enable the 'btrsubvol' command"
1345 select FS_BTRFS
1346 help
1347 This enables the 'btrsubvol' command to list subvolumes
1348 of a BTRFS filesystem. There are no special commands for
1349 listing BTRFS directories or loading BTRFS files - this
1350 can be done by the generic 'fs' commands (see CMD_FS_GENERIC)
1351 when BTRFS is enabled (see FS_BTRFS).
1352
d66a10fc
SG
1353config CMD_CBFS
1354 bool "Enable the 'cbfs' command"
deb95999 1355 depends on FS_CBFS
d66a10fc
SG
1356 help
1357 Define this to enable support for reading from a Coreboot
1358 filesystem. This is a ROM-based filesystem used for accessing files
1359 on systems that use coreboot as the first boot-loader and then load
1360 U-Boot to actually boot the Operating System. Available commands are
1361 cbfsinit, cbfsinfo, cbfsls and cbfsload.
1362
97072747
SG
1363config CMD_CRAMFS
1364 bool "Enable the 'cramfs' command"
80e44cfe 1365 depends on FS_CRAMFS
97072747
SG
1366 help
1367 This provides commands for dealing with CRAMFS (Compressed ROM
1368 filesystem). CRAMFS is useful when space is tight since files are
1369 compressed. Two commands are provided:
1370
1371 cramfsls - lists files in a cramfs image
1372 cramfsload - loads a file from a cramfs image
1373
ab8243e4
DN
1374config CMD_EXT2
1375 bool "ext2 command support"
3d22bae5 1376 select FS_EXT4
ab8243e4
DN
1377 help
1378 Enables EXT2 FS command
1379
1380config CMD_EXT4
1381 bool "ext4 command support"
3d22bae5 1382 select FS_EXT4
ab8243e4
DN
1383 help
1384 Enables EXT4 FS command
1385
1386config CMD_EXT4_WRITE
1387 depends on CMD_EXT4
1388 bool "ext4 write command support"
3d22bae5 1389 select EXT4_WRITE
ab8243e4
DN
1390 help
1391 Enables EXT4 FS write command
1392
1393config CMD_FAT
1394 bool "FAT command support"
eedfb89e 1395 select FS_FAT
ab8243e4
DN
1396 help
1397 Support for the FAT fs
1398
1399config CMD_FS_GENERIC
1400 bool "filesystem commands"
1401 help
1402 Enables filesystem commands (e.g. load, ls) that work for multiple
1403 fs types.
0269dfae 1404
efbe99ce
JM
1405config CMD_FS_UUID
1406 bool "fsuuid command"
1407 help
1408 Enables fsuuid command for filesystem UUID.
1409
b8682a7f
SG
1410config CMD_JFFS2
1411 bool "jffs2 command"
59e12a4a 1412 select FS_JFFS2
b8682a7f
SG
1413 help
1414 Enables commands to support the JFFS2 (Journalling Flash File System
1415 version 2) filesystem. This enables fsload, ls and fsinfo which
1416 provide the ability to load files, list directories and obtain
1417 filesystem information.
1418
0269dfae 1419config CMD_MTDPARTS
0269dfae
MR
1420 bool "MTD partition support"
1421 help
1422 MTD partition support
1423
1424config MTDIDS_DEFAULT
1425 string "Default MTD IDs"
43ede0bc 1426 depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH
0269dfae 1427 help
43ede0bc
TR
1428 Defines a default MTD IDs list for use with MTD partitions in the
1429 Linux MTD command line partitions format.
0269dfae
MR
1430
1431config MTDPARTS_DEFAULT
1432 string "Default MTD partition scheme"
43ede0bc 1433 depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH
0269dfae
MR
1434 help
1435 Defines a default MTD partitioning scheme in the Linux MTD command
1436 line partitions format
1437
cb70e6cb
SG
1438config CMD_MTDPARTS_SPREAD
1439 bool "Padd partition size to take account of bad blocks"
1440 depends on CMD_MTDPARTS
1441 help
1442 This enables the 'spread' sub-command of the mtdparts command.
1443 This command will modify the existing mtdparts variable by increasing
1444 the size of the partitions such that 1) each partition's net size is
1445 at least as large as the size specified in the mtdparts variable and
1446 2) each partition starts on a good block.
1447
f8803a99
SG
1448config CMD_REISER
1449 bool "reiser - Access to reiserfs filesystems"
1450 help
1451 This provides two commands which operate on a resierfs filesystem,
1452 commonly used some years ago:
1453
1454 reiserls - list files
1455 reiserload - load a file
1456
0941f597
SG
1457config CMD_SCSI
1458 bool "scsi - Access to SCSI devices"
1459 default y if SCSI
1460 help
1461 This provides a 'scsi' command which provides access to SCSI (Small
1462 Computer System Interface) devices. The command provides a way to
1463 scan the bus, reset the bus, read and write data and get information
1464 about devices.
1465
7a764318
SG
1466config CMD_YAFFS2
1467 bool "yaffs2 - Access of YAFFS2 filesystem"
1468 depends on YAFFS2
1469 default y
1470 help
1471 This provides commands for accessing a YAFFS2 filesystem. Yet
1472 Another Flash Filesystem 2 is a filesystem designed specifically
1473 for NAND flash. It incorporates bad-block management and ensures
1474 that device writes are sequential regardless of filesystem
1475 activity.
1476
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1477config CMD_ZFS
1478 bool "zfs - Access of ZFS filesystem"
1479 help
1480 This provides commands to accessing a ZFS filesystem, commonly used
1481 on Solaris systems. Two sub-commands are provided:
1482
1483 zfsls - list files in a directory
1484 zfsload - load a file
1485
1486 See doc/README.zfs for more details.
1487
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1488endmenu
1489
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1490menu "Debug commands"
1491
1492config CMD_BEDBUG
1493 bool "bedbug"
1494 help
1495 The bedbug (emBEDded deBUGger) command provides debugging features
1496 for some PowerPC processors. For details please see the
1497 docuemntation in doc/README.beddbug
1498
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1499config CMD_DIAG
1500 bool "diag - Board diagnostics"
1501 help
1502 This command provides access to board diagnostic tests. These are
1503 called Power-on Self Tests (POST). The command allows listing of
1504 available tests and running either all the tests, or specific tests
1505 identified by name.
1506
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1507config CMD_IRQ
1508 bool "irq - Show information about interrupts"
064b55cf 1509 depends on !ARM && !MIPS && !SH
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1510 help
1511 This enables two commands:
1512
1513 interrupts - enable or disable interrupts
1514 irqinfo - print device-specific interrupt information
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1515
1516config CMD_KGDB
1517 bool "kgdb - Allow debugging of U-Boot with gdb"
1518 help
1519 This enables a 'kgdb' command which allows gdb to connect to U-Boot
1520 over a serial link for debugging purposes. This allows
1521 single-stepping, inspecting variables, etc. This is supported only
1522 on PowerPC at present.
1523
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1524config CMD_LOG
1525 bool "log - Generation, control and access to logging"
1526 help
1527 This provides access to logging features. It allows the output of
1528 log data to be controlled to a limited extent (setting up the default
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1529 maximum log level for emitting of records). It also provides access
1530 to a command used for testing the log system.
d5f61f27 1531
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1532config CMD_TRACE
1533 bool "trace - Support tracing of function calls and timing"
1534 help
1535 Enables a command to control using of function tracing within
1536 U-Boot. This allows recording of call traces including timing
1537 information. The command can write data to memory for exporting
1538 for analsys (e.g. using bootchart). See doc/README.trace for full
1539 details.
1540
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1541endmenu
1542
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1543config CMD_UBI
1544 tristate "Enable UBI - Unsorted block images commands"
1545 select CRC32
1546 select MTD_UBI
22cf953a 1547 select CMD_MTDPARTS
522c282f 1548 default y if NAND_SUNXI
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1549 help
1550 UBI is a software layer above MTD layer which admits use of LVM-like
1551 logical volumes on top of MTD devices, hides some complexities of
1552 flash chips like wear and bad blocks and provides some other useful
1553 capabilities. Please, consult the MTD web site for more details
1554 (www.linux-mtd.infradead.org). Activate this option if you want
1555 to use U-Boot UBI commands.
1556
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1557config CMD_UBIFS
1558 tristate "Enable UBIFS - Unsorted block images filesystem commands"
2bc734b1 1559 depends on CMD_UBI
173aafbf 1560 select CRC32
24fc9531 1561 select LZO
d56b4b19 1562 default y if CMD_UBI
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1563 help
1564 UBIFS is a file system for flash devices which works on top of UBI.
1565
72a8cf8d 1566endmenu