xref: /rk3399_rockchip-uboot/cmd/Kconfig (revision bc04a3dd9a41813372820ba50655022a6a28bfbf)
1menu "Command line interface"
2
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
14config HUSH_PARSER
15	bool "Use hush shell"
16	depends on CMDLINE
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
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
35config AUTOBOOT
36	bool "Autoboot"
37	default y
38	help
39	  This enables the autoboot.  See doc/README.autoboot for detail.
40
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
117source "cmd/fastboot/Kconfig"
118
119config BUILD_BIN2C
120	bool
121
122comment "Commands"
123
124menu "Info commands"
125
126config CMD_BDI
127	bool "bdinfo"
128	default y
129	help
130	  Print board info
131
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
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"
160	select BUILD_BIN2C
161	help
162	  Print GPL license text
163
164config CMD_REGINFO
165	bool "reginfo"
166	depends on PPC
167	help
168	  Register dump
169
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
187config CMD_BOOTZ
188	bool "bootz"
189	help
190	  Boot the Linux zImage
191
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
199config CMD_BOOTEFI
200	bool "bootefi"
201	depends on EFI_LOADER
202	default y
203	help
204	  Boot an EFI image from memory.
205
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
219config CMD_BOOTEFI_HELLO
220	bool "Allow booting a standard EFI hello world for testing"
221	depends on CMD_BOOTEFI_HELLO_COMPILE
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
228config CMD_BOOTMENU
229	bool "bootmenu"
230	select MENU
231	help
232	  Add an ANSI terminal boot menu command.
233
234config CMD_DTIMG
235	bool "dtimg"
236	help
237	  Android DTB/DTBO image manipulation commands. Read dtb/dtbo files from
238	  image into RAM, dump image structure information, etc. Those dtb/dtbo
239	  files should be merged in one dtb further, which needs to be passed to
240	  the kernel, as part of a boot process.
241
242config CMD_ELF
243	bool "bootelf, bootvx"
244	default y
245	help
246	  Boot an ELF/vxWorks image from the memory.
247
248config CMD_FDT
249	bool "Flattened Device Tree utility commands"
250	default y
251	depends on OF_LIBFDT
252	help
253	  Do FDT related setup before booting into the Operating System.
254
255config CMD_GO
256	bool "go"
257	default y
258	help
259	  Start an application at a given address.
260
261config CMD_RUN
262	bool "run"
263	default y
264	help
265	  Run the command in the given environment variable.
266
267config CMD_IMI
268	bool "iminfo"
269	default y
270	help
271	  Print header information for application image.
272
273config CMD_IMLS
274	bool "imls"
275	default y
276	help
277	  List all images found in flash
278
279config CMD_XIMG
280	bool "imxtract"
281	default y
282	help
283	  Extract a part of a multi-image.
284
285config CMD_POWEROFF
286	bool "poweroff"
287	help
288	  Poweroff/Shutdown the system
289
290config CMD_SPL
291	bool "spl export - Export boot information for Falcon boot"
292	depends on SPL
293	help
294	  Falcon mode allows booting directly from SPL into an Operating
295	  System such as Linux, thus skipping U-Boot proper. See
296	  doc/README.falcon for full information about how to use this
297	  command.
298
299config CMD_SPL_NAND_OFS
300	hex "Offset of OS command line args for Falcon-mode NAND boot"
301	depends on CMD_SPL
302	default 0
303	help
304	  This provides the offset of the command line arguments for Linux
305	  when booting from NAND in Falcon mode.  See doc/README.falcon
306	  for full information about how to use this option (and also see
307	  board/gateworks/gw_ventana/README for an example).
308
309config CMD_SPL_WRITE_SIZE
310	hex "Size of argument area"
311	depends on CMD_SPL
312	default 0x2000
313	help
314	  This provides the size of the command-line argument area in NAND
315	  flash used by Falcon-mode boot. See the documentation until CMD_SPL
316	  for detail.
317
318config CMD_THOR_DOWNLOAD
319	bool "thor - TIZEN 'thor' download"
320	help
321	  Implements the 'thor' download protocol. This is a way of
322	  downloading a software update over USB from an attached host.
323	  There is no documentation about this within the U-Boot source code
324	  but you should be able to find something on the interwebs.
325
326config CMD_ZBOOT
327	bool "zboot - x86 boot command"
328	help
329	  With x86 machines it is common to boot a bzImage file which
330	  contains both a kernel and a setup.bin file. The latter includes
331	  configuration information from the dark ages which x86 boards still
332	  need to pick things out of.
333
334	  Consider using FIT in preference to this since it supports directly
335	  booting both 32- and 64-bit kernels, as well as secure boot.
336	  Documentation is available in doc/uImage.FIT/x86-fit-boot.txt
337
338endmenu
339
340menu "Environment commands"
341
342config CMD_ASKENV
343	bool "ask for env variable"
344	help
345	  Ask for environment variable
346
347config CMD_EXPORTENV
348	bool "env export"
349	default y
350	help
351	  Export environments.
352
353config CMD_IMPORTENV
354	bool "env import"
355	default y
356	help
357	  Import environments.
358
359config CMD_EDITENV
360	bool "editenv"
361	default y
362	help
363	  Edit environment variable.
364
365config CMD_GREPENV
366	bool "search env"
367	help
368	  Allow for searching environment variables
369
370config CMD_SAVEENV
371	bool "saveenv"
372	default y
373	help
374	  Save all environment variables into the compiled-in persistent
375	  storage.
376
377config CMD_ENV_EXISTS
378	bool "env exists"
379	default y
380	help
381	  Check if a variable is defined in the environment for use in
382	  shell scripting.
383
384config CMD_ENV_CALLBACK
385	bool "env callbacks - print callbacks and their associated variables"
386	help
387	  Some environment variable have callbacks defined by
388	  U_BOOT_ENV_CALLBACK. These are called when the variable changes.
389	  For example changing "baudrate" adjust the serial baud rate. This
390	  command lists the currently defined callbacks.
391
392config CMD_ENV_FLAGS
393	bool "env flags -print variables that have non-default flags"
394	help
395	  Some environment variables have special flags that control their
396	  behaviour. For example, serial# can only be written once and cannot
397	  be deleted. This command shows the variables that have special
398	  flags.
399
400endmenu
401
402menu "Memory commands"
403
404config CMD_CRC32
405	bool "crc32"
406	select HASH
407	default y
408	help
409	  Compute CRC32.
410
411config CRC32_VERIFY
412	bool "crc32 -v"
413	depends on CMD_CRC32
414	help
415	  Add -v option to verify data against a crc32 checksum.
416
417config CMD_EEPROM
418	bool "eeprom - EEPROM subsystem"
419	help
420	  (deprecated, needs conversion to driver model)
421	  Provides commands to read and write EEPROM (Electrically Erasable
422	  Programmable Read Only Memory) chips that are connected over an
423	  I2C bus.
424
425config CMD_EEPROM_LAYOUT
426	bool "Enable layout-aware eeprom commands"
427	depends on CMD_EEPROM
428	help
429	  (deprecated, needs conversion to driver model)
430	  When enabled, additional eeprom sub-commands become available.
431
432	  eeprom print - prints the contents of the eeprom in a human-readable
433	  way (eeprom layout fields, and data formatted to be fit for human
434	  consumption).
435
436	  eeprom update - allows user to update eeprom fields by specifying
437	  the field name, and providing the new data in a human readable format
438	  (same format as displayed by the eeprom print command).
439
440	  Both commands can either auto detect the layout, or be told which
441	  layout to use.
442
443	  Feature API:
444	  __weak int parse_layout_version(char *str)
445		- override to provide your own layout name parsing
446	  __weak void __eeprom_layout_assign(struct eeprom_layout *layout,
447			int layout_version);
448		- override to setup the layout metadata based on the version
449	  __weak int eeprom_layout_detect(unsigned char *data)
450		- override to provide your own algorithm for detecting layout
451			version
452	  eeprom_field.c
453		- contains various printing and updating functions for common
454			types of eeprom fields. Can be used for defining
455			custom layouts.
456
457config EEPROM_LAYOUT_HELP_STRING
458	  string "Tells user what layout names are supported"
459	  depends on CMD_EEPROM_LAYOUT
460	  default "<not defined>"
461	  help
462	    Help printed with the LAYOUT VERSIONS part of the 'eeprom'
463	    command's help.
464
465config LOOPW
466	bool "loopw"
467	help
468	  Infinite write loop on address range
469
470config CMD_MD5SUM
471	bool "md5sum"
472	default n
473	select MD5
474	help
475	  Compute MD5 checksum.
476
477config MD5SUM_VERIFY
478	bool "md5sum -v"
479	default n
480	depends on CMD_MD5SUM
481	help
482	  Add -v option to verify data against an MD5 checksum.
483
484config CMD_MEMINFO
485	bool "meminfo"
486	help
487	  Display memory information.
488
489config CMD_MEMORY
490	bool "md, mm, nm, mw, cp, cmp, base, loop"
491	default y
492	help
493	  Memory commands.
494	    md - memory display
495	    mm - memory modify (auto-incrementing address)
496	    nm - memory modify (constant address)
497	    mw - memory write (fill)
498	    cp - memory copy
499	    cmp - memory compare
500	    base - print or set address offset
501	    loop - initialize loop on address range
502
503config CMD_MEMTEST
504	bool "memtest"
505	help
506	  Simple RAM read/write test.
507
508config CMD_MX_CYCLIC
509	bool "mdc, mwc"
510	help
511	  mdc - memory display cyclic
512	  mwc - memory write cyclic
513
514config CMD_SHA1SUM
515	bool "sha1sum"
516	select SHA1
517	help
518	  Compute SHA1 checksum.
519
520config SHA1SUM_VERIFY
521	bool "sha1sum -v"
522	depends on CMD_SHA1SUM
523	help
524	  Add -v option to verify data against a SHA1 checksum.
525
526config CMD_STRINGS
527	bool "strings - display strings in memory"
528	help
529	  This works similarly to the Unix 'strings' command except that it
530	  works with a memory range. String of printable characters found
531	  within the range are displayed. The minimum number of characters
532	  for a sequence to be considered a string can be provided.
533
534endmenu
535
536menu "Compression commands"
537
538config CMD_LZMADEC
539	bool "lzmadec"
540	default y if CMD_BOOTI
541	select LZMA
542	help
543	  Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm)
544	  image from memory.
545
546config CMD_UNZIP
547	bool "unzip"
548	default y if CMD_BOOTI
549	help
550	  Uncompress a zip-compressed memory region.
551
552config CMD_ZIP
553	bool "zip"
554	help
555	  Compress a memory region with zlib deflate method.
556
557endmenu
558
559menu "Device access commands"
560
561config CMD_ARMFLASH
562	#depends on FLASH_CFI_DRIVER
563	bool "armflash"
564	help
565	  ARM Ltd reference designs flash partition access
566
567config CMD_CLK
568	bool "clk - Show clock frequencies"
569	help
570	  (deprecated)
571	  Shows clock frequences by calling a sock_clk_dump() hook function.
572	  This is depreated in favour of using the CLK uclass and accessing
573	  clock values from associated drivers. However currently no command
574	  exists for this.
575
576config CMD_DEMO
577	bool "demo - Demonstration commands for driver model"
578	depends on DM
579	help
580	  Provides a 'demo' command which can be used to play around with
581	  driver model. To use this properly you will need to enable one or
582	  both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
583	  Otherwise you will always get an empty list of devices. The demo
584	  devices are defined in the sandbox device tree, so the easiest
585	  option is to use sandbox and pass the -d point to sandbox's
586	  u-boot.dtb file.
587
588config CMD_DFU
589	bool "dfu"
590	select USB_FUNCTION_DFU
591	help
592	  Enables the command "dfu" which is used to have U-Boot create a DFU
593	  class device via USB. This command requires that the "dfu_alt_info"
594	  environment variable be set and define the alt settings to expose to
595	  the host.
596
597config CMD_DM
598	bool "dm - Access to driver model information"
599	depends on DM
600	default y
601	help
602	  Provides access to driver model data structures and information,
603	  such as a list of devices, list of uclasses and the state of each
604	  device (e.g. activated). This is not required for operation, but
605	  can be useful to see the state of driver model for debugging or
606	  interest.
607
608config CMD_FDC
609	bool "fdcboot - Boot from floppy device"
610	help
611	  The 'fdtboot' command allows booting an image from a floppy disk.
612
613config CMD_FLASH
614	bool "flinfo, erase, protect"
615	default y
616	help
617	  NOR flash support.
618	    flinfo - print FLASH memory information
619	    erase - FLASH memory
620	    protect - enable or disable FLASH write protection
621
622config CMD_FPGA
623	bool "fpga"
624	default y
625	help
626	  FPGA support.
627
628config CMD_FPGA_LOADBP
629	bool "fpga loadbp - load partial bitstream (Xilinx only)"
630	depends on CMD_FPGA
631	help
632	  Supports loading an FPGA device from a bitstream buffer containing
633	  a partial bitstream.
634
635config CMD_FPGA_LOADFS
636	bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
637	depends on CMD_FPGA
638	help
639	  Supports loading an FPGA device from a FAT filesystem.
640
641config CMD_FPGA_LOADMK
642	bool "fpga loadmk - load bitstream from image"
643	depends on CMD_FPGA
644	help
645	  Supports loading an FPGA device from a image generated by mkimage.
646
647config CMD_FPGA_LOADP
648	bool "fpga loadp - load partial bitstream"
649	depends on CMD_FPGA
650	help
651	  Supports loading an FPGA device from a bitstream buffer containing
652	  a partial bitstream.
653
654config CMD_FPGAD
655	bool "fpgad - dump FPGA registers"
656	help
657	  (legacy, needs conversion to driver model)
658	  Provides a way to dump FPGA registers by calling the board-specific
659	  fpga_get_reg() function. This functions similarly to the 'md'
660	  command.
661
662config CMD_FUSE
663	bool "fuse - support for the fuse subssystem"
664	help
665	  (deprecated - needs conversion to driver model)
666	  This allows reading, sensing, programming or overriding fuses
667	  which control the behaviour of the device. The command uses the
668	  fuse_...() API.
669
670config CMD_GPIO
671	bool "gpio"
672	help
673	  GPIO support.
674
675config CMD_GPT
676	bool "GPT (GUID Partition Table) command"
677	select PARTITION_UUIDS
678	select EFI_PARTITION
679	imply RANDOM_UUID
680	help
681	  Enable the 'gpt' command to ready and write GPT style partition
682	  tables.
683
684config RANDOM_UUID
685	bool "GPT Random UUID generation"
686	help
687	  Enable the generation of partitions with random UUIDs if none
688	  are provided.
689
690config CMD_GPT_RENAME
691	bool "GPT partition renaming commands"
692	depends on CMD_GPT
693	help
694	  Enables the 'gpt' command to interchange names on two GPT
695	  partitions via the 'gpt swap' command or to rename single
696	  partitions via the 'rename' command.
697
698config CMD_IDE
699	bool "ide - Support for IDE drivers"
700	select IDE
701	help
702	  Provides an 'ide' command which allows accessing the IDE drive,
703	  reseting the IDE interface, printing the partition table and
704	  geting device info. It also enables the 'diskboot' command which
705	  permits booting from an IDE drive.
706
707config CMD_IO
708	bool "io - Support for performing I/O accesses"
709	help
710	  Provides an 'iod' command to display I/O space and an 'iow' command
711	  to write values to the I/O space. This can be useful for manually
712	  checking the state of devices during boot when debugging device
713	  drivers, etc.
714
715config CMD_IOTRACE
716	bool "iotrace - Support for tracing I/O activity"
717	help
718	  Provides an 'iotrace' command which supports recording I/O reads and
719	  writes in a trace buffer in memory . It also maintains a checksum
720	  of the trace records (even if space is exhausted) so that the
721	  sequence of I/O accesses can be verified.
722
723	  When debugging drivers it is useful to see what I/O accesses were
724	  done and in what order.
725
726	  Even if the individual accesses are of little interest it can be
727	  useful to verify that the access pattern is consistent each time
728	  an operation is performed. In this case a checksum can be used to
729	  characterise the operation of a driver. The checksum can be compared
730	  across different runs of the operation to verify that the driver is
731	  working properly.
732
733	  In particular, when performing major refactoring of the driver, where
734	  the access pattern should not change, the checksum provides assurance
735	  that the refactoring work has not broken the driver.
736
737	  This works by sneaking into the io.h heder for an architecture and
738	  redirecting I/O accesses through iotrace's tracing mechanism.
739
740	  For now no commands are provided to examine the trace buffer. The
741	  format is fairly simple, so 'md' is a reasonable substitute.
742
743	  Note: The checksum feature is only useful for I/O regions where the
744	  contents do not change outside of software control. Where this is not
745	  suitable you can fall back to manually comparing the addresses. It
746	  might be useful to enhance tracing to only checksum the accesses and
747	  not the data read/written.
748
749config CMD_I2C
750	bool "i2c"
751	help
752	  I2C support.
753
754config CMD_LOADB
755	bool "loadb"
756	default y
757	help
758	  Load a binary file over serial line.
759
760config CMD_LOADS
761	bool "loads"
762	default y
763	help
764	  Load an S-Record file over serial line
765
766config CMD_LOAD_ANDROID
767	bool "load_android"
768	default n
769	depends on ANDROID_BOOT_IMAGE
770	help
771	  Load an Android Boot image from storage. The Android Boot images
772	  define the size and kernel address on the header, which are used by
773	  this command.
774
775config CMD_BOOT_ANDROID
776	bool "boot_android"
777	default n
778	depends on ANDROID_BOOTLOADER
779	help
780	  Performs the Android Bootloader boot flow, loading the appropriate
781	  Android image (normal kernel, recovery kernel or "bootloader" mode)
782	  and booting it. The boot mode is determined by the contents of the
783	  Android Bootloader Message.
784
785config CMD_ANDROID_AB_SELECT
786	bool "android_ab_select"
787	default n
788	depends on ANDROID_AB
789	help
790	  On Android devices with more than one boot slot (multiple copies of
791	  the kernel and system images) this provides a command to select which
792	  slot should be used to boot from and register the boot attempt. This
793	  is used by the new A/B update model where one slot is updated in the
794	  background while running from the other slot.
795
796config CMD_BOOT_ROCKCHIP
797	bool "boot_rockchip"
798	default n
799	depends on RKIMG_BOOTLOADER
800	help
801	  Performs the Rockchip Bootloader boot flow, loading the appropriate
802	  Rockchip image (normal kernel, boot, resource and revocery)
803	  and booting it. The boot mode is determined by the contents of the
804	  Rockchip bootloader helper.
805
806config CMD_MMC
807	bool "mmc"
808	help
809	  MMC memory mapped support.
810
811config CMD_NAND
812	bool "nand"
813	default y if NAND_SUNXI
814	help
815	  NAND support.
816
817if CMD_NAND
818config CMD_NAND_TRIMFFS
819	bool "nand write.trimffs"
820	default y if ARCH_SUNXI
821	help
822	  Allows one to skip empty pages when flashing something on a NAND.
823
824config CMD_NAND_LOCK_UNLOCK
825	bool "nand lock/unlock"
826	help
827	  NAND locking support.
828
829config CMD_NAND_TORTURE
830	bool "nand torture"
831	help
832	  NAND torture support.
833
834endif # CMD_NAND
835
836config CMD_NVME
837	bool "nvme"
838	depends on NVME
839	default y if NVME
840	help
841	  NVM Express device support
842
843config CMD_MMC_SPI
844	bool "mmc_spi - Set up MMC SPI device"
845	help
846	  Provides a way to set up an MMC (Multimedia Card) SPI (Serial
847	  Peripheral Interface) device. The device provides a means of
848	  accessing an MMC device via SPI using a single data line, limited
849	  to 20MHz. It is useful since it reduces the amount of protocol code
850	  required.
851
852config CMD_ONENAND
853	bool "onenand - access to onenand device"
854	help
855	  OneNAND is a brand of NAND ('Not AND' gate) flash which provides
856	  various useful features. This command allows reading, writing,
857	  and erasing blocks. It allso provides a way to show and change
858	  bad blocks, and test the device.
859
860config CMD_PART
861	bool "part"
862	select PARTITION_UUIDS
863	help
864	  Read and display information about the partition table on
865	  various media.
866
867config CMD_PCI
868	bool "pci - Access PCI devices"
869	help
870	  Provide access to PCI (Peripheral Interconnect Bus), a type of bus
871	  used on some devices to allow the CPU to communicate with its
872	  peripherals. Sub-commands allow bus enumeration, displaying and
873	  changing configuration space and a few other features.
874
875config CMD_PCMCIA
876	bool "pinit - Set up PCMCIA device"
877	help
878	  Provides a means to initialise a PCMCIA (Personal Computer Memory
879	  Card International Association) device. This is an old standard from
880	  about 1990. These devices are typically removable memory or network
881	  cards using a standard 68-pin connector.
882
883config CMD_READ
884	bool "read - Read binary data from a partition"
885	help
886	  Provides low-level access to the data in a partition.
887
888config CMD_REMOTEPROC
889	bool "remoteproc"
890	depends on REMOTEPROC
891	help
892	  Support for Remote Processor control
893
894config CMD_ROCKUSB
895	bool "rockusb - Command to upgrade Rockchip device"
896	depends on USB_GADGET
897	help
898	  Rockusb command provides a way to upgrade firmware for
899	  Rockchip SoC based devices, its design make use of USB
900	  Bulk-Only Transport based on UMS framework.
901
902config CMD_RKNAND
903	bool "rknand"
904	depends on (RKNAND || RKNANDC_NAND)
905	default y if (RKNAND || RKNANDC_NAND)
906	help
907	    Rockchip NAND FLASH device support
908
909config CMD_RKSFC
910	bool "rksfc"
911	depends on (RKSFC_NOR || RKSFC_NAND)
912	default y if (RKSFC_NOR || RKSFC_NAND)
913	help
914	  Rockchip SFC device support
915
916config CMD_SATA
917	bool "sata - Access SATA subsystem"
918	select SATA
919	help
920	  SATA (Serial Advanced Technology Attachment) is a serial bus
921	  standard for connecting to hard drives and other storage devices.
922	  This command provides information about attached devices and allows
923	  reading, writing and other operations.
924
925	  SATA replaces PATA (originally just ATA), which stands for Parallel AT
926	  Attachment, where AT refers to an IBM AT (Advanced Technology)
927	  computer released in 1984.
928
929config CMD_SAVES
930	bool "saves - Save a file over serial in S-Record format"
931	help
932	  Provides a way to save a binary file using the Motorola S-Record
933	  format over the serial line.
934
935config CMD_SDRAM
936	bool "sdram - Print SDRAM configuration information"
937	help
938	  Provides information about attached SDRAM. This assumed that the
939	  SDRAM has an EEPROM with information that can be read using the
940	  I2C bus. This is only available on some boards.
941
942config CMD_SF
943	bool "sf"
944	help
945	  SPI Flash support
946
947config CMD_SF_TEST
948	bool "sf test - Allow testing of SPI flash"
949	help
950	  Provides a way to test that SPI flash is working correctly. The
951	  test is destructive, in that an area of SPI flash must be provided
952	  for the test to use. Performance information is also provided,
953	  measuring the performance of reading, writing and erasing in
954	  Mbps (Million Bits Per Second). This value should approximately
955	  equal the SPI bus speed for a single-bit-wide SPI bus, assuming
956	  everything is working properly.
957
958config CMD_SPI
959	bool "sspi"
960	help
961	  SPI utility command.
962
963config CMD_TSI148
964	bool "tsi148 - Command to access tsi148 device"
965	help
966	  This provides various sub-commands to initialise and configure the
967	  Turndra tsi148 device. See the command help for full details.
968
969config CMD_UNIVERSE
970	bool "universe - Command to set up the Turndra Universe controller"
971	help
972	  This allows setting up the VMEbus provided by this controller.
973	  See the command help for full details.
974
975config CMD_USB
976	bool "usb"
977	help
978	  USB support.
979
980config CMD_USB_SDP
981	bool "sdp"
982	select USB_FUNCTION_SDP
983	help
984	  Enables the command "sdp" which is used to have U-Boot emulating the
985	  Serial Download Protocol (SDP) via USB.
986
987config CMD_USB_MASS_STORAGE
988	bool "UMS usb mass storage"
989	help
990	  USB mass storage support
991
992endmenu
993
994
995menu "Shell scripting commands"
996
997config CMD_ECHO
998	bool "echo"
999	default y
1000	help
1001	  Echo args to console
1002
1003config CMD_ITEST
1004	bool "itest"
1005	default y
1006	help
1007	  Return true/false on integer compare.
1008
1009config CMD_SOURCE
1010	bool "source"
1011	default y
1012	help
1013	  Run script from memory
1014
1015config CMD_SETEXPR
1016	bool "setexpr"
1017	default y
1018	help
1019	  Evaluate boolean and math expressions and store the result in an env
1020	    variable.
1021	  Also supports loading the value at a memory location into a variable.
1022	  If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
1023
1024endmenu
1025
1026menu "Network commands"
1027
1028config CMD_NET
1029	bool "bootp, tftpboot"
1030        select NET
1031	default y
1032	help
1033	  Network commands.
1034	  bootp - boot image via network using BOOTP/TFTP protocol
1035	  tftpboot - boot image via network using TFTP protocol
1036
1037config CMD_TFTPPUT
1038	bool "tftp put"
1039	help
1040	  TFTP put command, for uploading files to a server
1041
1042config CMD_TFTPSRV
1043	bool "tftpsrv"
1044	help
1045	  Act as a TFTP server and boot the first received file
1046
1047config CMD_RARP
1048	bool "rarpboot"
1049	help
1050	  Boot image via network using RARP/TFTP protocol
1051
1052config CMD_DHCP
1053	bool "dhcp"
1054	help
1055	  Boot image via network using DHCP/TFTP protocol
1056
1057config CMD_PXE
1058	bool "pxe"
1059	select MENU
1060	help
1061	  Boot image via network using PXE protocol
1062
1063config CMD_NFS
1064	bool "nfs"
1065	default y
1066	help
1067	  Boot image via network using NFS protocol.
1068
1069config CMD_MII
1070	bool "mii"
1071	help
1072	  Enable MII utility commands.
1073
1074config CMD_PING
1075	bool "ping"
1076	help
1077	  Send ICMP ECHO_REQUEST to network host
1078
1079config CMD_CDP
1080	bool "cdp"
1081	help
1082	  Perform CDP network configuration
1083
1084config CMD_SNTP
1085	bool "sntp"
1086	help
1087	  Synchronize RTC via network
1088
1089config CMD_DNS
1090	bool "dns"
1091	help
1092	  Lookup the IP of a hostname
1093
1094config CMD_LINK_LOCAL
1095	bool "linklocal"
1096	help
1097	  Acquire a network IP address using the link-local protocol
1098
1099config CMD_ETHSW
1100	bool "ethsw"
1101	help
1102	  Allow control of L2 Ethernet switch commands. These are supported
1103	  by the vsc9953 Ethernet driver at present. Sub-commands allow
1104	  operations such as enabling / disabling a port and
1105	  viewing/maintaining the filtering database (FDB)
1106
1107endmenu
1108
1109config CMD_MEMTESTER
1110	bool "Enable memtester for ddr"
1111	help
1112	  This enables memtester for ddr.
1113
1114menu "Misc commands"
1115
1116config CMD_BMP
1117	bool "Enable 'bmp' command"
1118	depends on LCD || DM_VIDEO || VIDEO
1119	help
1120	  This provides a way to obtain information about a BMP-format iamge
1121	  and to display it. BMP (which presumably stands for BitMaP) is a
1122	  file format defined by Microsoft which supports images of various
1123	  depths, formats and compression methods. Headers on the file
1124	  determine the formats used. This command can be used by first loading
1125	  the image into RAM, then using this command to look at it or display
1126	  it.
1127
1128config CMD_BSP
1129	bool "Enable board-specific commands"
1130	help
1131	  (deprecated: instead, please define a Kconfig option for each command)
1132
1133	  Some boards have board-specific commands which are only enabled
1134	  during developemnt and need to be turned off for production. This
1135	  option provides a way to control this. The commands that are enabled
1136	  vary depending on the board.
1137
1138config CMD_BKOPS_ENABLE
1139	bool "mmc bkops enable"
1140	depends on CMD_MMC
1141	default n
1142	help
1143	  Enable command for setting manual background operations handshake
1144	  on a eMMC device. The feature is optionally available on eMMC devices
1145	  conforming to standard >= 4.41.
1146
1147config CMD_BLOCK_CACHE
1148	bool "blkcache - control and stats for block cache"
1149	depends on BLOCK_CACHE
1150	default y if BLOCK_CACHE
1151	help
1152	  Enable the blkcache command, which can be used to control the
1153	  operation of the cache functions.
1154	  This is most useful when fine-tuning the operation of the cache
1155	  during development, but also allows the cache to be disabled when
1156	  it might hurt performance (e.g. when using the ums command).
1157
1158config CMD_CACHE
1159	bool "icache or dcache"
1160	help
1161	  Enable the "icache" and "dcache" commands
1162
1163config CMD_DISPLAY
1164	bool "Enable the 'display' command, for character displays"
1165	help
1166	  (this needs porting to driver model)
1167	  This enables the 'display' command which allows a string to be
1168	  displayed on a simple board-specific display. Implement
1169	  display_putc() to use it.
1170
1171config CMD_LED
1172	bool "led"
1173	default y if LED
1174	help
1175	  Enable the 'led' command which allows for control of LEDs supported
1176	  by the board. The LEDs can be listed with 'led list' and controlled
1177	  with led on/off/togle/blink. Any LED drivers can be controlled with
1178	  this command, e.g. led_gpio.
1179
1180config CMD_DATE
1181	bool "date"
1182	default y if DM_RTC
1183	help
1184	  Enable the 'date' command for getting/setting the time/date in RTC
1185	  devices.
1186
1187config CMD_TIME
1188	bool "time"
1189	help
1190	  Run commands and summarize execution time.
1191
1192config CMD_GETTIME
1193	bool "gettime - read elapsed time"
1194	help
1195	  Enable the 'gettime' command which reads the elapsed time since
1196	  U-Boot started running. This shows the time in seconds and
1197	  milliseconds. See also the 'bootstage' command which provides more
1198	  flexibility for boot timing.
1199
1200# TODO: rename to CMD_SLEEP
1201config CMD_MISC
1202	bool "sleep"
1203	default y
1204	help
1205	  Delay execution for some time
1206
1207config CMD_TIMER
1208	bool "timer"
1209	help
1210	  Access the system timer.
1211
1212config CMD_SOUND
1213	bool "sound"
1214	depends on SOUND
1215	help
1216	  This provides basic access to the U-Boot's sound support. The main
1217	  feature is to play a beep.
1218
1219	     sound init   - set up sound system
1220	     sound play   - play a sound
1221
1222config CMD_QFW
1223	bool "qfw"
1224	select QFW
1225	help
1226	  This provides access to the QEMU firmware interface.  The main
1227	  feature is to allow easy loading of files passed to qemu-system
1228	  via -kernel / -initrd
1229
1230source "cmd/mvebu/Kconfig"
1231
1232config CMD_TERMINAL
1233	bool "terminal - provides a way to attach a serial terminal"
1234	help
1235	  Provides a 'cu'-like serial terminal command. This can be used to
1236	  access other serial ports from the system console. The terminal
1237	  is very simple with no special processing of characters. As with
1238	  cu, you can press ~. (tilde followed by period) to exit.
1239
1240config CMD_UUID
1241	bool "uuid, guid - generation of unique IDs"
1242	help
1243	  This enables two commands:
1244
1245	     uuid - generate random Universally Unique Identifier
1246	     guid - generate Globally Unique Identifier based on random UUID
1247
1248	  The two commands are very similar except for the endianness of the
1249	  output.
1250
1251endmenu
1252
1253config CMD_BOOTSTAGE
1254	bool "Enable the 'bootstage' command"
1255	depends on BOOTSTAGE
1256	help
1257	  Add a 'bootstage' command which supports printing a report
1258	  and un/stashing of bootstage data.
1259
1260menu "Power commands"
1261config CMD_PMIC
1262	bool "Enable Driver Model PMIC command"
1263	depends on DM_PMIC
1264	help
1265	  This is the pmic command, based on a driver model pmic's API.
1266	  Command features are unchanged:
1267	  - list               - list pmic devices
1268	  - pmic dev <id>      - show or [set] operating pmic device (NEW)
1269	  - pmic dump          - dump registers
1270	  - pmic read address  - read byte of register at address
1271	  - pmic write address - write byte to register at address
1272	  The only one change for this command is 'dev' subcommand.
1273
1274config CMD_REGULATOR
1275	bool "Enable Driver Model REGULATOR command"
1276	depends on DM_REGULATOR
1277	help
1278	  This command is based on driver model regulator's API.
1279	  User interface features:
1280	  - list               - list regulator devices
1281	  - regulator dev <id> - show or [set] operating regulator device
1282	  - regulator info     - print constraints info
1283	  - regulator status   - print operating status
1284	  - regulator value <val] <-f> - print/[set] voltage value [uV]
1285	  - regulator current <val>    - print/[set] current value [uA]
1286	  - regulator mode <id>        - print/[set] operating mode id
1287	  - regulator enable           - enable the regulator output
1288	  - regulator disable          - disable the regulator output
1289
1290	  The '-f' (force) option can be used for set the value which exceeds
1291	  the limits, which are found in device-tree and are kept in regulator's
1292	  uclass platdata structure.
1293
1294config CMD_CHARGE_DISPLAY
1295	bool "Enable Driver Model Charge Display command"
1296	help
1297	  Support U-Boot charge display.
1298
1299endmenu
1300
1301menu "Security commands"
1302config CMD_AES
1303	bool "Enable the 'aes' command"
1304	select AES
1305	help
1306	  This provides a means to encrypt and decrypt data using the AES
1307	  (Advanced Encryption Standard). This algorithm uses a symetric key
1308	  and is widely used as a streaming cipher. Different key lengths are
1309	  supported by the algorithm but this command only supports 128 bits
1310	  at present.
1311
1312config CMD_BLOB
1313	bool "Enable the 'blob' command"
1314	help
1315	  This is used with the Freescale secure boot mechanism.
1316
1317	  Freescale's SEC block has built-in Blob Protocol which provides
1318	  a method for protecting user-defined data across system power
1319	  cycles. SEC block protects data in a data structure called a Blob,
1320	  which provides both confidentiality and integrity protection.
1321
1322	  Encapsulating data as a blob
1323	  Each time that the Blob Protocol is used to protect data, a
1324	  different randomly generated key is used to encrypt the data.
1325	  This random key is itself encrypted using a key which is derived
1326	  from SoC's non-volatile secret key and a 16 bit Key identifier.
1327	  The resulting encrypted key along with encrypted data is called a
1328	  blob. The non-volatile secure key is available for use only during
1329	  secure boot.
1330
1331	  During decapsulation, the reverse process is performed to get back
1332	  the original data.
1333
1334	  Sub-commands:
1335            blob enc - encapsulating data as a cryptgraphic blob
1336	    blob dec - decapsulating cryptgraphic blob to get the data
1337
1338	  Syntax:
1339
1340	  blob enc src dst len km
1341
1342	  Encapsulate and create blob of data $len bytes long
1343	  at address $src and store the result at address $dst.
1344	  $km is the 16 byte key modifier is also required for
1345	  generation/use as key for cryptographic operation. Key
1346	  modifier should be 16 byte long.
1347
1348	  blob dec src dst len km
1349
1350	  Decapsulate the  blob of data at address $src and
1351	  store result of $len byte at addr $dst.
1352	  $km is the 16 byte key modifier is also required for
1353	  generation/use as key for cryptographic operation. Key
1354	  modifier should be 16 byte long.
1355
1356config CMD_HASH
1357	bool "Support 'hash' command"
1358	select HASH
1359	help
1360	  This provides a way to hash data in memory using various supported
1361	  algorithms (such as SHA1, MD5, CRC32). The computed digest can be
1362	  saved to memory or to an environment variable. It is also possible
1363	  to verify a hash against data in memory.
1364
1365config HASH_VERIFY
1366	bool "hash -v"
1367	depends on CMD_HASH
1368	help
1369	  Add -v option to verify data against a hash.
1370
1371config CMD_TPM
1372	bool "Enable the 'tpm' command"
1373	depends on TPM
1374	help
1375	  This provides a means to talk to a TPM from the command line. A wide
1376	  range of commands if provided - see 'tpm help' for details. The
1377	  command requires a suitable TPM on your board and the correct driver
1378	  must be enabled.
1379
1380config CMD_TPM_TEST
1381	bool "Enable the 'tpm test' command"
1382	depends on CMD_TPM
1383	help
1384	  This provides a a series of tests to confirm that the TPM is working
1385	  correctly. The tests cover initialisation, non-volatile RAM, extend,
1386	  global lock and checking that timing is within expectations. The
1387	  tests pass correctly on Infineon TPMs but may need to be adjusted
1388	  for other devices.
1389
1390endmenu
1391
1392menu "Firmware commands"
1393config CMD_CROS_EC
1394	bool "Enable crosec command"
1395	depends on CROS_EC
1396	default y
1397	help
1398	  Enable command-line access to the Chrome OS EC (Embedded
1399	  Controller). This provides the 'crosec' command which has
1400	  a number of sub-commands for performing EC tasks such as
1401	  updating its flash, accessing a small saved context area
1402	  and talking to the I2C bus behind the EC (if there is one).
1403endmenu
1404
1405menu "Filesystem commands"
1406config CMD_CBFS
1407	bool "Enable the 'cbfs' command"
1408	depends on FS_CBFS
1409	help
1410	  Define this to enable support for reading from a Coreboot
1411	  filesystem. This is a ROM-based filesystem used for accessing files
1412	  on systems that use coreboot as the first boot-loader and then load
1413	  U-Boot to actually boot the Operating System. Available commands are
1414	  cbfsinit, cbfsinfo, cbfsls and cbfsload.
1415
1416config CMD_CRAMFS
1417	bool "Enable the 'cramfs' command"
1418	depends on FS_CRAMFS
1419	help
1420	  This provides commands for dealing with CRAMFS (Compressed ROM
1421	  filesystem). CRAMFS is useful when space is tight since files are
1422	  compressed. Two commands are provided:
1423
1424	     cramfsls   - lists files in a cramfs image
1425	     cramfsload - loads a file from a cramfs image
1426
1427config CMD_EXT2
1428	bool "ext2 command support"
1429	help
1430	  Enables EXT2 FS command
1431
1432config CMD_EXT4
1433	bool "ext4 command support"
1434	help
1435	  Enables EXT4 FS command
1436
1437config CMD_EXT4_WRITE
1438	depends on CMD_EXT4
1439	bool "ext4 write command support"
1440	help
1441	  Enables EXT4 FS write command
1442
1443config CMD_FAT
1444	bool "FAT command support"
1445	select FS_FAT
1446	help
1447	  Support for the FAT fs
1448
1449config CMD_FS_GENERIC
1450	bool "filesystem commands"
1451	help
1452	  Enables filesystem commands (e.g. load, ls) that work for multiple
1453	  fs types.
1454
1455config CMD_FS_UUID
1456	bool "fsuuid command"
1457	help
1458	  Enables fsuuid command for filesystem UUID.
1459
1460config CMD_JFFS2
1461	bool "jffs2 command"
1462	select FS_JFFS2
1463	help
1464	  Enables commands to support the JFFS2 (Journalling Flash File System
1465	  version 2) filesystem. This enables fsload, ls and fsinfo which
1466	  provide the ability to load files, list directories and obtain
1467	  filesystem information.
1468
1469config CMD_MTDPARTS
1470	bool "MTD partition support"
1471	help
1472	  MTD partition support
1473
1474config MTDIDS_DEFAULT
1475	string "Default MTD IDs"
1476	depends on CMD_MTDPARTS
1477	help
1478	  Defines a default MTD ID
1479
1480config MTDPARTS_DEFAULT
1481	string "Default MTD partition scheme"
1482	depends on CMD_MTDPARTS
1483	help
1484	  Defines a default MTD partitioning scheme in the Linux MTD command
1485	  line partitions format
1486
1487config CMD_MTDPARTS_SPREAD
1488	bool "Padd partition size to take account of bad blocks"
1489	depends on CMD_MTDPARTS
1490	help
1491	  This enables the 'spread' sub-command of the mtdparts command.
1492	  This command will modify the existing mtdparts variable by increasing
1493	  the size of the partitions such that 1) each partition's net size is
1494	  at least as large as the size specified in the mtdparts variable and
1495	  2) each partition starts on a good block.
1496
1497config CMD_REISER
1498	bool "reiser - Access to reiserfs filesystems"
1499	help
1500	  This provides two commands which operate on a resierfs filesystem,
1501	  commonly used some years ago:
1502
1503	    reiserls - list files
1504	    reiserload - load a file
1505
1506config CMD_SCSI
1507	bool "scsi - Access to SCSI devices"
1508	default y if SCSI
1509	help
1510	  This provides a 'scsi' command which provides access to SCSI (Small
1511	  Computer System Interface) devices. The command provides a way to
1512	  scan the bus, reset the bus, read and write data and get information
1513	  about devices.
1514
1515config CMD_YAFFS2
1516	bool "yaffs2 - Access of YAFFS2 filesystem"
1517	depends on YAFFS2
1518	default y
1519	help
1520	  This provides commands for accessing a YAFFS2 filesystem. Yet
1521	  Another Flash Filesystem 2 is a filesystem designed specifically
1522	  for NAND flash. It incorporates bad-block management and ensures
1523	  that device writes are sequential regardless of filesystem
1524	  activity.
1525
1526config CMD_ZFS
1527	bool "zfs - Access of ZFS filesystem"
1528	help
1529	  This provides commands to accessing a ZFS filesystem, commonly used
1530	  on Solaris systems. Two sub-commands are provided:
1531
1532	    zfsls - list files in a directory
1533	    zfsload - load a file
1534
1535	  See doc/README.zfs for more details.
1536
1537endmenu
1538
1539menu "Debug commands"
1540
1541config CMD_BEDBUG
1542	bool "bedbug"
1543	help
1544	  The bedbug (emBEDded deBUGger) command provides debugging features
1545	  for some PowerPC processors. For details please see the
1546	  docuemntation in doc/README.beddbug
1547
1548config CMD_DIAG
1549	bool "diag - Board diagnostics"
1550	help
1551	  This command provides access to board diagnostic tests. These are
1552	  called Power-on Self Tests (POST). The command allows listing of
1553	  available tests and running either all the tests, or specific tests
1554	  identified by name.
1555
1556config CMD_IRQ
1557	bool "irq - Show information about interrupts"
1558	depends on !ARM && !MIPS && !SH
1559	help
1560	  This enables two commands:
1561
1562	     interrupts - enable or disable interrupts
1563	     irqinfo - print device-specific interrupt information
1564
1565config CMD_KGDB
1566	bool "kgdb - Allow debugging of U-Boot with gdb"
1567	help
1568	  This enables a 'kgdb' command which allows gdb to connect to U-Boot
1569	  over a serial link for debugging purposes. This allows
1570	  single-stepping, inspecting variables, etc. This is supported only
1571	  on PowerPC at present.
1572
1573config CMD_LOG
1574	bool "log - Generation, control and access to logging"
1575	help
1576	  This provides access to logging features. It allows the output of
1577	  log data to be controlled to a limited extent (setting up the default
1578	  maximum log level for emitting of records). It also provides access
1579	  to a command used for testing the log system.
1580
1581config CMD_TRACE
1582	bool "trace - Support tracing of function calls and timing"
1583	help
1584	  Enables a command to control using of function tracing within
1585	  U-Boot. This allows recording of call traces including timing
1586	  information. The command can write data to memory for exporting
1587	  for analsys (e.g. using bootchart). See doc/README.trace for full
1588	  details.
1589
1590endmenu
1591
1592config CMD_UBI
1593	tristate "Enable UBI - Unsorted block images commands"
1594	select CRC32
1595	select MTD_UBI
1596	select CMD_MTDPARTS
1597	default y if NAND_SUNXI
1598	help
1599	  UBI is a software layer above MTD layer which admits use of LVM-like
1600	  logical volumes on top of MTD devices, hides some complexities of
1601	  flash chips like wear and bad blocks and provides some other useful
1602	  capabilities. Please, consult the MTD web site for more details
1603	  (www.linux-mtd.infradead.org). Activate this option if you want
1604	  to use U-Boot UBI commands.
1605
1606config CMD_UBIFS
1607	tristate "Enable UBIFS - Unsorted block images filesystem commands"
1608	depends on CMD_UBI
1609	select CRC32
1610	select LZO
1611	default y if CMD_UBI
1612	help
1613	  UBIFS is a file system for flash devices which works on top of UBI.
1614
1615endmenu
1616