1 menu "Command line interface"
4 bool "Support U-Boot commands"
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.
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").
23 If disabled, you get the old, much simpler behaviour with a somewhat
24 smaller memory footprint.
30 This string is displayed in the command line to the left of the
33 menu "Autoboot options"
39 This enables the autoboot. See doc/README.autoboot for detail.
42 bool "Stop autobooting via specific input key / string"
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.
51 config AUTOBOOT_PROMPT
52 string "Autoboot stop prompt"
53 depends on AUTOBOOT_KEYED
54 default "Autoboot in %d seconds\\n"
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.
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.
67 config AUTOBOOT_ENCRYPTION
68 bool "Enable encryption in autoboot stopping"
69 depends on AUTOBOOT_KEYED
72 config AUTOBOOT_DELAY_STR
73 string "Delay autobooting via specific input key / string"
74 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
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.
84 config AUTOBOOT_STOP_STR
85 string "Stop autobooting via specific input key / string"
86 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
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.
96 config AUTOBOOT_KEYED_CTRLC
97 bool "Enable Ctrl-C autoboot interruption"
98 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
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.
106 config AUTOBOOT_STOP_STR_SHA256
107 string "Stop autobooting via SHA256 encrypted password"
108 depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION
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.
117 source "cmd/fastboot/Kconfig"
134 Print ".config" contents.
136 If this option is enabled, the ".config" file contents are embedded
137 in the U-Boot image and can be printed on the console by the "config"
138 command. This provides information of which options are enabled on
145 Print console devices and information.
150 Print information about available CPUs. This normally shows the
151 number of CPUs, type (e.g. manufacturer, architecture, product or
152 internal name) and clock frequency. Other information may be
153 available depending on the CPU driver.
159 Print GPL license text
169 Run the command stored in the environment "bootcmd", i.e.
170 "bootd" does the same thing as "run bootcmd".
176 Boot an application image from the memory.
181 Boot the Linux zImage
188 Boot an AArch64 Linux Kernel image from memory.
192 depends on EFI_LOADER
195 Boot an EFI image from memory.
197 config CMD_BOOTEFI_HELLO_COMPILE
198 bool "Compile a standard EFI hello world binary for testing"
199 depends on CMD_BOOTEFI && (ARM || X86)
202 This compiles a standard EFI hello world application with U-Boot so
203 that it can be used with the test/py testing framework. This is useful
204 for testing that EFI is working at a basic level, and for bringing
205 up EFI support on a new architecture.
207 No additional space will be required in the resulting U-Boot binary
208 when this option is enabled.
210 config CMD_BOOTEFI_HELLO
211 bool "Allow booting a standard EFI hello world for testing"
212 depends on CMD_BOOTEFI_HELLO_COMPILE
214 This adds a standard EFI hello world application to U-Boot so that
215 it can be used with the 'bootefi hello' command. This is useful
216 for testing that EFI is working at a basic level, and for bringing
217 up EFI support on a new architecture.
223 Add an ANSI terminal boot menu command.
226 bool "bootelf, bootvx"
229 Boot an ELF/vxWorks image from the memory.
232 bool "Flattened Device Tree utility commands"
236 Do FDT related setup before booting into the Operating System.
242 Start an application at a given address.
248 Run the command in the given environment variable.
254 Print header information for application image.
260 List all images found in flash
266 Extract a part of a multi-image.
271 Poweroff/Shutdown the system
275 menu "Environment commands"
278 bool "ask for env variable"
280 Ask for environment variable
298 Edit environment variable.
303 Allow for searching environment variables
309 Save all environment variables into the compiled-in persistent
312 config CMD_ENV_EXISTS
316 Check if a variable is defined in the environment for use in
319 config CMD_ENV_CALLBACK
320 bool "env callbacks - print callbacks and their associated variables"
322 Some environment variable have callbacks defined by
323 U_BOOT_ENV_CALLBACK. These are called when the variable changes.
324 For example changing "baudrate" adjust the serial baud rate. This
325 command lists the currently defined callbacks.
328 bool "env flags -print variables that have non-default flags"
330 Some environment variables have special flags that control their
331 behaviour. For example, serial# can only be written once and cannot
332 be deleted. This command shows the variables that have special
337 menu "Memory commands"
340 bool "md, mm, nm, mw, cp, cmp, base, loop"
345 mm - memory modify (auto-incrementing address)
346 nm - memory modify (constant address)
347 mw - memory write (fill)
350 base - print or set address offset
351 loop - initialize loop on address range
364 Add -v option to verify data against a crc32 checksum.
367 bool "eeprom - EEPROM subsystem"
369 (deprecated, needs conversion to driver model)
370 Provides commands to read and write EEPROM (Electrically Erasable
371 Programmable Read Only Memory) chips that are connected over an
374 config CMD_EEPROM_LAYOUT
375 bool "Enable layout-aware eeprom commands"
376 depends on CMD_EEPROM
378 (deprecated, needs conversion to driver model)
379 When enabled, additional eeprom sub-commands become available.
381 eeprom print - prints the contents of the eeprom in a human-readable
382 way (eeprom layout fields, and data formatted to be fit for human
385 eeprom update - allows user to update eeprom fields by specifying
386 the field name, and providing the new data in a human readable format
387 (same format as displayed by the eeprom print command).
389 Both commands can either auto detect the layout, or be told which
393 __weak int parse_layout_version(char *str)
394 - override to provide your own layout name parsing
395 __weak void __eeprom_layout_assign(struct eeprom_layout *layout,
397 - override to setup the layout metadata based on the version
398 __weak int eeprom_layout_detect(unsigned char *data)
399 - override to provide your own algorithm for detecting layout
402 - contains various printing and updating functions for common
403 types of eeprom fields. Can be used for defining
406 config EEPROM_LAYOUT_HELP_STRING
407 string "Tells user what layout names are supported"
408 depends on CMD_EEPROM_LAYOUT
409 default "<not defined>"
411 Help printed with the LAYOUT VERSIONS part of the 'eeprom'
419 Compute MD5 checksum.
424 depends on CMD_MD5SUM
426 Add -v option to verify data against an MD5 checksum.
432 Compute SHA1 checksum.
434 config SHA1SUM_VERIFY
436 depends on CMD_SHA1SUM
438 Add -v option to verify data against a SHA1 checksum.
443 Infinite write loop on address range
448 Simple RAM read/write test.
453 mdc - memory display cyclic
454 mwc - memory write cyclic
459 Display memory information.
463 menu "Compression commands"
469 Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm)
475 Uncompress a zip-compressed memory region.
480 Compress a memory region with zlib deflate method.
484 menu "Device access commands"
487 #depends on FLASH_CFI_DRIVER
490 ARM Ltd reference designs flash partition access
493 bool "clk - Show clock frequencies"
496 Shows clock frequences by calling a sock_clk_dump() hook function.
497 This is depreated in favour of using the CLK uclass and accessing
498 clock values from associated drivers. However currently no command
502 bool "demo - Demonstration commands for driver model"
505 Provides a 'demo' command which can be used to play around with
506 driver model. To use this properly you will need to enable one or
507 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
508 Otherwise you will always get an empty list of devices. The demo
509 devices are defined in the sandbox device tree, so the easiest
510 option is to use sandbox and pass the -d point to sandbox's
515 select USB_FUNCTION_DFU
517 Enables the command "dfu" which is used to have U-Boot create a DFU
518 class device via USB.
521 bool "dm - Access to driver model information"
525 Provides access to driver model data structures and information,
526 such as a list of devices, list of uclasses and the state of each
527 device (e.g. activated). This is not required for operation, but
528 can be useful to see the state of driver model for debugging or
532 bool "fdcboot - Boot from floppy device"
534 The 'fdtboot' command allows booting an image from a floppy disk.
537 bool "flinfo, erase, protect"
541 flinfo - print FLASH memory information
543 protect - enable or disable FLASH write protection
551 config CMD_FPGA_LOADBP
552 bool "fpga loadbp - load partial bitstream (Xilinx only)"
555 Supports loading an FPGA device from a bitstream buffer containing
558 config CMD_FPGA_LOADFS
559 bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
562 Supports loading an FPGA device from a FAT filesystem.
564 config CMD_FPGA_LOADMK
565 bool "fpga loadmk - load bitstream from image"
568 Supports loading an FPGA device from a image generated by mkimage.
570 config CMD_FPGA_LOADP
571 bool "fpga loadp - load partial bitstream"
574 Supports loading an FPGA device from a bitstream buffer containing
578 bool "fpgad - dump FPGA registers"
580 (legacy, needs conversion to driver model)
581 Provides a way to dump FPGA registers by calling the board-specific
582 fpga_get_reg() function. This functions similarly to the 'md'
586 bool "fuse - support for the fuse subssystem"
588 (deprecated - needs conversion to driver model)
589 This allows reading, sensing, programming or overriding fuses
590 which control the behaviour of the device. The command uses the
599 bool "GPT (GUID Partition Table) command"
600 select PARTITION_UUIDS
603 Enable the 'gpt' command to ready and write GPT style partition
606 config CMD_GPT_RENAME
607 bool "GPT partition renaming commands"
610 Enables the 'gpt' command to interchange names on two GPT
611 partitions via the 'gpt swap' command or to rename single
612 partitions via the 'rename' command.
615 bool "ide - Support for IDE drivers"
618 Provides an 'ide' command which allows accessing the IDE drive,
619 reseting the IDE interface, printing the partition table and
620 geting device info. It also enables the 'diskboot' command which
621 permits booting from an IDE drive.
624 bool "io - Support for performing I/O accesses"
626 Provides an 'iod' command to display I/O space and an 'iow' command
627 to write values to the I/O space. This can be useful for manually
628 checking the state of devices during boot when debugging device
632 bool "iotrace - Support for tracing I/O activity"
634 Provides an 'iotrace' command which supports recording I/O reads and
635 writes in a trace buffer in memory . It also maintains a checksum
636 of the trace records (even if space is exhausted) so that the
637 sequence of I/O accesses can be verified.
639 When debugging drivers it is useful to see what I/O accesses were
640 done and in what order.
642 Even if the individual accesses are of little interest it can be
643 useful to verify that the access pattern is consistent each time
644 an operation is performed. In this case a checksum can be used to
645 characterise the operation of a driver. The checksum can be compared
646 across different runs of the operation to verify that the driver is
649 In particular, when performing major refactoring of the driver, where
650 the access pattern should not change, the checksum provides assurance
651 that the refactoring work has not broken the driver.
653 This works by sneaking into the io.h heder for an architecture and
654 redirecting I/O accesses through iotrace's tracing mechanism.
656 For now no commands are provided to examine the trace buffer. The
657 format is fairly simple, so 'md' is a reasonable substitute.
659 Note: The checksum feature is only useful for I/O regions where the
660 contents do not change outside of software control. Where this is not
661 suitable you can fall back to manually comparing the addresses. It
662 might be useful to enhance tracing to only checksum the accesses and
663 not the data read/written.
674 Load a binary file over serial line.
680 Load an S-Record file over serial line
685 MMC memory mapped support.
689 default y if NAND_SUNXI
694 config CMD_NAND_TRIMFFS
695 bool "nand write.trimffs"
696 default y if ARCH_SUNXI
698 Allows one to skip empty pages when flashing something on a NAND.
700 config CMD_NAND_LOCK_UNLOCK
701 bool "nand lock/unlock"
703 NAND locking support.
705 config CMD_NAND_TORTURE
708 NAND torture support.
713 bool "mmc_spi - Set up MMC SPI device"
715 Provides a way to set up an MMC (Multimedia Card) SPI (Serial
716 Peripheral Interface) device. The device provides a means of
717 accessing an MMC device via SPI using a single data line, limited
718 to 20MHz. It is useful since it reduces the amount of protocol code
722 bool "onenand - access to onenand device"
724 OneNAND is a brand of NAND ('Not AND' gate) flash which provides
725 various useful features. This command allows reading, writing,
726 and erasing blocks. It allso provides a way to show and change
727 bad blocks, and test the device.
731 select PARTITION_UUIDS
733 Read and display information about the partition table on
737 bool "pci - Access PCI devices"
739 Provide access to PCI (Peripheral Interconnect Bus), a type of bus
740 used on some devices to allow the CPU to communicate with its
741 peripherals. Sub-commands allow bus enumeration, displaying and
742 changing configuration space and a few other features.
744 config CMD_REMOTEPROC
746 depends on REMOTEPROC
748 Support for Remote Processor control
751 bool "sata - Access SATA subsystem"
754 SATA (Serial Advanced Technology Attachment) is a serial bus
755 standard for connecting to hard drives and other storage devices.
756 This command provides information about attached devices and allows
757 reading, writing and other operations.
759 SATA replaces PATA (originally just ATA), which stands for Parallel AT
760 Attachment, where AT refers to an IBM AT (Advanced Technology)
761 computer released in 1984.
778 config CMD_USB_MASS_STORAGE
779 bool "UMS usb mass storage"
781 USB mass storage support
786 menu "Shell scripting commands"
798 Return true/false on integer compare.
804 Run script from memory
810 Evaluate boolean and math expressions and store the result in an env
812 Also supports loading the value at a memory location into a variable.
813 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
817 menu "Network commands"
820 bool "bootp, tftpboot"
825 bootp - boot image via network using BOOTP/TFTP protocol
826 tftpboot - boot image via network using TFTP protocol
831 TFTP put command, for uploading files to a server
836 Act as a TFTP server and boot the first received file
841 Boot image via network using RARP/TFTP protocol
846 Boot image via network using DHCP/TFTP protocol
852 Boot image via network using PXE protocol
858 Boot image via network using NFS protocol.
863 Enable MII utility commands.
868 Send ICMP ECHO_REQUEST to network host
873 Perform CDP network configuration
878 Synchronize RTC via network
883 Lookup the IP of a hostname
885 config CMD_LINK_LOCAL
888 Acquire a network IP address using the link-local protocol
893 Allow control of L2 Ethernet switch commands. These are supported
894 by the vsc9953 Ethernet driver at present. Sub-commands allow
895 operations such as enabling / disabling a port and
896 viewing/maintaining the filtering database (FDB)
903 bool "Enable 'bmp' command"
904 depends on LCD || DM_VIDEO || VIDEO
906 This provides a way to obtain information about a BMP-format iamge
907 and to display it. BMP (which presumably stands for BitMaP) is a
908 file format defined by Microsoft which supports images of various
909 depths, formats and compression methods. Headers on the file
910 determine the formats used. This command can be used by first loading
911 the image into RAM, then using this command to look at it or display
915 bool "Enable board-specific commands"
917 (deprecated: instead, please define a Kconfig option for each command)
919 Some boards have board-specific commands which are only enabled
920 during developemnt and need to be turned off for production. This
921 option provides a way to control this. The commands that are enabled
922 vary depending on the board.
924 config CMD_BKOPS_ENABLE
925 bool "mmc bkops enable"
929 Enable command for setting manual background operations handshake
930 on a eMMC device. The feature is optionally available on eMMC devices
931 conforming to standard >= 4.41.
933 config CMD_BLOCK_CACHE
934 bool "blkcache - control and stats for block cache"
935 depends on BLOCK_CACHE
936 default y if BLOCK_CACHE
938 Enable the blkcache command, which can be used to control the
939 operation of the cache functions.
940 This is most useful when fine-tuning the operation of the cache
941 during development, but also allows the cache to be disabled when
942 it might hurt performance (e.g. when using the ums command).
945 bool "icache or dcache"
947 Enable the "icache" and "dcache" commands
950 bool "Enable the 'display' command, for character displays"
952 (this needs porting to driver model)
953 This enables the 'display' command which allows a string to be
954 displayed on a simple board-specific display. Implement
955 display_putc() to use it.
961 Enable the 'led' command which allows for control of LEDs supported
962 by the board. The LEDs can be listed with 'led list' and controlled
963 with led on/off/togle/blink. Any LED drivers can be controlled with
964 this command, e.g. led_gpio.
970 Enable the 'date' command for getting/setting the time/date in RTC
976 Run commands and summarize execution time.
979 bool "gettime - read elapsed time"
981 Enable the 'gettime' command which reads the elapsed time since
982 U-Boot started running. This shows the time in seconds and
983 milliseconds. See also the 'bootstage' command which provides more
984 flexibility for boot timing.
986 # TODO: rename to CMD_SLEEP
991 Delay execution for some time
996 Access the system timer.
1002 This provides basic access to the U-Boot's sound support. The main
1003 feature is to play a beep.
1005 sound init - set up sound system
1006 sound play - play a sound
1012 This provides access to the QEMU firmware interface. The main
1013 feature is to allow easy loading of files passed to qemu-system
1014 via -kernel / -initrd
1016 source "cmd/mvebu/Kconfig"
1020 config CMD_BOOTSTAGE
1021 bool "Enable the 'bootstage' command"
1022 depends on BOOTSTAGE
1024 Add a 'bootstage' command which supports printing a report
1025 and un/stashing of bootstage data.
1027 menu "Power commands"
1029 bool "Enable Driver Model PMIC command"
1032 This is the pmic command, based on a driver model pmic's API.
1033 Command features are unchanged:
1034 - list - list pmic devices
1035 - pmic dev <id> - show or [set] operating pmic device (NEW)
1036 - pmic dump - dump registers
1037 - pmic read address - read byte of register at address
1038 - pmic write address - write byte to register at address
1039 The only one change for this command is 'dev' subcommand.
1041 config CMD_REGULATOR
1042 bool "Enable Driver Model REGULATOR command"
1043 depends on DM_REGULATOR
1045 This command is based on driver model regulator's API.
1046 User interface features:
1047 - list - list regulator devices
1048 - regulator dev <id> - show or [set] operating regulator device
1049 - regulator info - print constraints info
1050 - regulator status - print operating status
1051 - regulator value <val] <-f> - print/[set] voltage value [uV]
1052 - regulator current <val> - print/[set] current value [uA]
1053 - regulator mode <id> - print/[set] operating mode id
1054 - regulator enable - enable the regulator output
1055 - regulator disable - disable the regulator output
1057 The '-f' (force) option can be used for set the value which exceeds
1058 the limits, which are found in device-tree and are kept in regulator's
1059 uclass platdata structure.
1063 menu "Security commands"
1065 bool "Enable the 'aes' command"
1068 This provides a means to encrypt and decrypt data using the AES
1069 (Advanced Encryption Standard). This algorithm uses a symetric key
1070 and is widely used as a streaming cipher. Different key lengths are
1071 supported by the algorithm but this command only supports 128 bits
1075 bool "Enable the 'blob' command"
1077 This is used with the Freescale secure boot mechanism.
1079 Freescale's SEC block has built-in Blob Protocol which provides
1080 a method for protecting user-defined data across system power
1081 cycles. SEC block protects data in a data structure called a Blob,
1082 which provides both confidentiality and integrity protection.
1084 Encapsulating data as a blob
1085 Each time that the Blob Protocol is used to protect data, a
1086 different randomly generated key is used to encrypt the data.
1087 This random key is itself encrypted using a key which is derived
1088 from SoC's non-volatile secret key and a 16 bit Key identifier.
1089 The resulting encrypted key along with encrypted data is called a
1090 blob. The non-volatile secure key is available for use only during
1093 During decapsulation, the reverse process is performed to get back
1097 blob enc - encapsulating data as a cryptgraphic blob
1098 blob dec - decapsulating cryptgraphic blob to get the data
1102 blob enc src dst len km
1104 Encapsulate and create blob of data $len bytes long
1105 at address $src and store the result at address $dst.
1106 $km is the 16 byte key modifier is also required for
1107 generation/use as key for cryptographic operation. Key
1108 modifier should be 16 byte long.
1110 blob dec src dst len km
1112 Decapsulate the blob of data at address $src and
1113 store result of $len byte at addr $dst.
1114 $km is the 16 byte key modifier is also required for
1115 generation/use as key for cryptographic operation. Key
1116 modifier should be 16 byte long.
1119 bool "Support 'hash' command"
1122 This provides a way to hash data in memory using various supported
1123 algorithms (such as SHA1, MD5, CRC32). The computed digest can be
1124 saved to memory or to an environment variable. It is also possible
1125 to verify a hash against data in memory.
1131 Add -v option to verify data against a hash.
1134 bool "Enable the 'tpm' command"
1137 This provides a means to talk to a TPM from the command line. A wide
1138 range of commands if provided - see 'tpm help' for details. The
1139 command requires a suitable TPM on your board and the correct driver
1143 bool "Enable the 'tpm test' command"
1146 This provides a a series of tests to confirm that the TPM is working
1147 correctly. The tests cover initialisation, non-volatile RAM, extend,
1148 global lock and checking that timing is within expectations. The
1149 tests pass correctly on Infineon TPMs but may need to be adjusted
1154 menu "Firmware commands"
1156 bool "Enable crosec command"
1160 Enable command-line access to the Chrome OS EC (Embedded
1161 Controller). This provides the 'crosec' command which has
1162 a number of sub-commands for performing EC tasks such as
1163 updating its flash, accessing a small saved context area
1164 and talking to the I2C bus behind the EC (if there is one).
1167 menu "Filesystem commands"
1169 bool "Enable the 'cbfs' command"
1172 Define this to enable support for reading from a Coreboot
1173 filesystem. This is a ROM-based filesystem used for accessing files
1174 on systems that use coreboot as the first boot-loader and then load
1175 U-Boot to actually boot the Operating System. Available commands are
1176 cbfsinit, cbfsinfo, cbfsls and cbfsload.
1179 bool "Enable the 'cramfs' command"
1180 depends on FS_CRAMFS
1182 This provides commands for dealing with CRAMFS (Compressed ROM
1183 filesystem). CRAMFS is useful when space is tight since files are
1184 compressed. Two commands are provided:
1186 cramfsls - lists files in a cramfs image
1187 cramfsload - loads a file from a cramfs image
1190 bool "ext2 command support"
1192 Enables EXT2 FS command
1195 bool "ext4 command support"
1197 Enables EXT4 FS command
1199 config CMD_EXT4_WRITE
1201 bool "ext4 write command support"
1203 Enables EXT4 FS write command
1206 bool "FAT command support"
1209 Support for the FAT fs
1211 config CMD_FS_GENERIC
1212 bool "filesystem commands"
1214 Enables filesystem commands (e.g. load, ls) that work for multiple
1218 bool "fsuuid command"
1220 Enables fsuuid command for filesystem UUID.
1223 bool "jffs2 command"
1226 Enables commands to support the JFFS2 (Journalling Flash File System
1227 version 2) filesystem. This enables fsload, ls and fsinfo which
1228 provide the ability to load files, list directories and obtain
1229 filesystem information.
1232 bool "MTD partition support"
1234 MTD partition support
1236 config MTDIDS_DEFAULT
1237 string "Default MTD IDs"
1238 depends on CMD_MTDPARTS
1240 Defines a default MTD ID
1242 config MTDPARTS_DEFAULT
1243 string "Default MTD partition scheme"
1244 depends on CMD_MTDPARTS
1246 Defines a default MTD partitioning scheme in the Linux MTD command
1247 line partitions format
1249 config CMD_MTDPARTS_SPREAD
1250 bool "Padd partition size to take account of bad blocks"
1251 depends on CMD_MTDPARTS
1253 This enables the 'spread' sub-command of the mtdparts command.
1254 This command will modify the existing mtdparts variable by increasing
1255 the size of the partitions such that 1) each partition's net size is
1256 at least as large as the size specified in the mtdparts variable and
1257 2) each partition starts on a good block.
1261 menu "Debug commands"
1266 The bedbug (emBEDded deBUGger) command provides debugging features
1267 for some PowerPC processors. For details please see the
1268 docuemntation in doc/README.beddbug
1271 bool "diag - Board diagnostics"
1273 This command provides access to board diagnostic tests. These are
1274 called Power-on Self Tests (POST). The command allows listing of
1275 available tests and running either all the tests, or specific tests
1279 bool "irq - Show information about interrupts"
1280 depends on !ARM && !MIPS && !SH
1282 This enables two commands:
1284 interrupts - enable or disable interrupts
1285 irqinfo - print device-specific interrupt information
1288 bool "kgdb - Allow debugging of U-Boot with gdb"
1290 This enables a 'kgdb' command which allows gdb to connect to U-Boot
1291 over a serial link for debugging purposes. This allows
1292 single-stepping, inspecting variables, etc. This is supported only
1293 on PowerPC at present.
1298 tristate "Enable UBI - Unsorted block images commands"
1302 default y if NAND_SUNXI
1304 UBI is a software layer above MTD layer which admits use of LVM-like
1305 logical volumes on top of MTD devices, hides some complexities of
1306 flash chips like wear and bad blocks and provides some other useful
1307 capabilities. Please, consult the MTD web site for more details
1308 (www.linux-mtd.infradead.org). Activate this option if you want
1309 to use U-Boot UBI commands.
1312 tristate "Enable UBIFS - Unsorted block images filesystem commands"
1316 default y if CMD_UBI
1318 UBIFS is a file system for flash devices which works on top of UBI.
projects / u-boot / blob