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
175 Run the command stored in the environment "bootcmd", i.e.
176 "bootd" does the same thing as "run bootcmd".
182 Boot an application image from the memory.
187 Boot the Linux zImage
194 Boot an AArch64 Linux Kernel image from memory.
198 depends on EFI_LOADER
201 Boot an EFI image from memory.
203 config CMD_BOOTEFI_HELLO_COMPILE
204 bool "Compile a standard EFI hello world binary for testing"
205 depends on CMD_BOOTEFI && (ARM || X86)
208 This compiles a standard EFI hello world application with U-Boot so
209 that it can be used with the test/py testing framework. This is useful
210 for testing that EFI is working at a basic level, and for bringing
211 up EFI support on a new architecture.
213 No additional space will be required in the resulting U-Boot binary
214 when this option is enabled.
216 config CMD_BOOTEFI_HELLO
217 bool "Allow booting a standard EFI hello world for testing"
218 depends on CMD_BOOTEFI_HELLO_COMPILE
220 This adds a standard EFI hello world application to U-Boot so that
221 it can be used with the 'bootefi hello' command. This is useful
222 for testing that EFI is working at a basic level, and for bringing
223 up EFI support on a new architecture.
229 Add an ANSI terminal boot menu command.
232 bool "bootelf, bootvx"
235 Boot an ELF/vxWorks image from the memory.
238 bool "Flattened Device Tree utility commands"
242 Do FDT related setup before booting into the Operating System.
248 Start an application at a given address.
254 Run the command in the given environment variable.
260 Print header information for application image.
266 List all images found in flash
272 Extract a part of a multi-image.
277 Poweroff/Shutdown the system
280 bool "spl export - Export boot information for Falcon boot"
283 Falcon mode allows booting directly from SPL into an Operating
284 System such as Linux, thus skipping U-Boot proper. See
285 doc/README.falcon for full information about how to use this
288 config CMD_SPL_NAND_OFS
289 hex "Offset of OS command line args for Falcon-mode NAND boot"
293 This provides the offset of the command line arguments for Linux
294 when booting from NAND in Falcon mode. See doc/README.falcon
295 for full information about how to use this option (and also see
296 board/gateworks/gw_ventana/README for an example).
298 config CMD_SPL_WRITE_SIZE
299 hex "Size of argument area"
303 This provides the size of the command-line argument area in NAND
304 flash used by Falcon-mode boot. See the documentation until CMD_SPL
309 menu "Environment commands"
312 bool "ask for env variable"
314 Ask for environment variable
332 Edit environment variable.
337 Allow for searching environment variables
343 Save all environment variables into the compiled-in persistent
346 config CMD_ENV_EXISTS
350 Check if a variable is defined in the environment for use in
353 config CMD_ENV_CALLBACK
354 bool "env callbacks - print callbacks and their associated variables"
356 Some environment variable have callbacks defined by
357 U_BOOT_ENV_CALLBACK. These are called when the variable changes.
358 For example changing "baudrate" adjust the serial baud rate. This
359 command lists the currently defined callbacks.
362 bool "env flags -print variables that have non-default flags"
364 Some environment variables have special flags that control their
365 behaviour. For example, serial# can only be written once and cannot
366 be deleted. This command shows the variables that have special
371 menu "Memory commands"
384 Add -v option to verify data against a crc32 checksum.
387 bool "eeprom - EEPROM subsystem"
389 (deprecated, needs conversion to driver model)
390 Provides commands to read and write EEPROM (Electrically Erasable
391 Programmable Read Only Memory) chips that are connected over an
394 config CMD_EEPROM_LAYOUT
395 bool "Enable layout-aware eeprom commands"
396 depends on CMD_EEPROM
398 (deprecated, needs conversion to driver model)
399 When enabled, additional eeprom sub-commands become available.
401 eeprom print - prints the contents of the eeprom in a human-readable
402 way (eeprom layout fields, and data formatted to be fit for human
405 eeprom update - allows user to update eeprom fields by specifying
406 the field name, and providing the new data in a human readable format
407 (same format as displayed by the eeprom print command).
409 Both commands can either auto detect the layout, or be told which
413 __weak int parse_layout_version(char *str)
414 - override to provide your own layout name parsing
415 __weak void __eeprom_layout_assign(struct eeprom_layout *layout,
417 - override to setup the layout metadata based on the version
418 __weak int eeprom_layout_detect(unsigned char *data)
419 - override to provide your own algorithm for detecting layout
422 - contains various printing and updating functions for common
423 types of eeprom fields. Can be used for defining
426 config EEPROM_LAYOUT_HELP_STRING
427 string "Tells user what layout names are supported"
428 depends on CMD_EEPROM_LAYOUT
429 default "<not defined>"
431 Help printed with the LAYOUT VERSIONS part of the 'eeprom'
437 Infinite write loop on address range
444 Compute MD5 checksum.
449 depends on CMD_MD5SUM
451 Add -v option to verify data against an MD5 checksum.
456 Display memory information.
459 bool "md, mm, nm, mw, cp, cmp, base, loop"
464 mm - memory modify (auto-incrementing address)
465 nm - memory modify (constant address)
466 mw - memory write (fill)
469 base - print or set address offset
470 loop - initialize loop on address range
475 Simple RAM read/write test.
480 mdc - memory display cyclic
481 mwc - memory write cyclic
487 Compute SHA1 checksum.
489 config SHA1SUM_VERIFY
491 depends on CMD_SHA1SUM
493 Add -v option to verify data against a SHA1 checksum.
496 bool "strings - display strings in memory"
498 This works similarly to the Unix 'strings' command except that it
499 works with a memory range. String of printable characters found
500 within the range are displayed. The minimum number of characters
501 for a sequence to be considered a string can be provided.
505 menu "Compression commands"
511 Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm)
517 Uncompress a zip-compressed memory region.
522 Compress a memory region with zlib deflate method.
526 menu "Device access commands"
529 #depends on FLASH_CFI_DRIVER
532 ARM Ltd reference designs flash partition access
535 bool "clk - Show clock frequencies"
538 Shows clock frequences by calling a sock_clk_dump() hook function.
539 This is depreated in favour of using the CLK uclass and accessing
540 clock values from associated drivers. However currently no command
544 bool "demo - Demonstration commands for driver model"
547 Provides a 'demo' command which can be used to play around with
548 driver model. To use this properly you will need to enable one or
549 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
550 Otherwise you will always get an empty list of devices. The demo
551 devices are defined in the sandbox device tree, so the easiest
552 option is to use sandbox and pass the -d point to sandbox's
557 select USB_FUNCTION_DFU
559 Enables the command "dfu" which is used to have U-Boot create a DFU
560 class device via USB.
563 bool "dm - Access to driver model information"
567 Provides access to driver model data structures and information,
568 such as a list of devices, list of uclasses and the state of each
569 device (e.g. activated). This is not required for operation, but
570 can be useful to see the state of driver model for debugging or
574 bool "fdcboot - Boot from floppy device"
576 The 'fdtboot' command allows booting an image from a floppy disk.
579 bool "flinfo, erase, protect"
583 flinfo - print FLASH memory information
585 protect - enable or disable FLASH write protection
593 config CMD_FPGA_LOADBP
594 bool "fpga loadbp - load partial bitstream (Xilinx only)"
597 Supports loading an FPGA device from a bitstream buffer containing
600 config CMD_FPGA_LOADFS
601 bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
604 Supports loading an FPGA device from a FAT filesystem.
606 config CMD_FPGA_LOADMK
607 bool "fpga loadmk - load bitstream from image"
610 Supports loading an FPGA device from a image generated by mkimage.
612 config CMD_FPGA_LOADP
613 bool "fpga loadp - load partial bitstream"
616 Supports loading an FPGA device from a bitstream buffer containing
620 bool "fpgad - dump FPGA registers"
622 (legacy, needs conversion to driver model)
623 Provides a way to dump FPGA registers by calling the board-specific
624 fpga_get_reg() function. This functions similarly to the 'md'
628 bool "fuse - support for the fuse subssystem"
630 (deprecated - needs conversion to driver model)
631 This allows reading, sensing, programming or overriding fuses
632 which control the behaviour of the device. The command uses the
641 bool "GPT (GUID Partition Table) command"
642 select PARTITION_UUIDS
645 Enable the 'gpt' command to ready and write GPT style partition
648 config CMD_GPT_RENAME
649 bool "GPT partition renaming commands"
652 Enables the 'gpt' command to interchange names on two GPT
653 partitions via the 'gpt swap' command or to rename single
654 partitions via the 'rename' command.
657 bool "ide - Support for IDE drivers"
660 Provides an 'ide' command which allows accessing the IDE drive,
661 reseting the IDE interface, printing the partition table and
662 geting device info. It also enables the 'diskboot' command which
663 permits booting from an IDE drive.
666 bool "io - Support for performing I/O accesses"
668 Provides an 'iod' command to display I/O space and an 'iow' command
669 to write values to the I/O space. This can be useful for manually
670 checking the state of devices during boot when debugging device
674 bool "iotrace - Support for tracing I/O activity"
676 Provides an 'iotrace' command which supports recording I/O reads and
677 writes in a trace buffer in memory . It also maintains a checksum
678 of the trace records (even if space is exhausted) so that the
679 sequence of I/O accesses can be verified.
681 When debugging drivers it is useful to see what I/O accesses were
682 done and in what order.
684 Even if the individual accesses are of little interest it can be
685 useful to verify that the access pattern is consistent each time
686 an operation is performed. In this case a checksum can be used to
687 characterise the operation of a driver. The checksum can be compared
688 across different runs of the operation to verify that the driver is
691 In particular, when performing major refactoring of the driver, where
692 the access pattern should not change, the checksum provides assurance
693 that the refactoring work has not broken the driver.
695 This works by sneaking into the io.h heder for an architecture and
696 redirecting I/O accesses through iotrace's tracing mechanism.
698 For now no commands are provided to examine the trace buffer. The
699 format is fairly simple, so 'md' is a reasonable substitute.
701 Note: The checksum feature is only useful for I/O regions where the
702 contents do not change outside of software control. Where this is not
703 suitable you can fall back to manually comparing the addresses. It
704 might be useful to enhance tracing to only checksum the accesses and
705 not the data read/written.
716 Load a binary file over serial line.
722 Load an S-Record file over serial line
727 MMC memory mapped support.
731 default y if NAND_SUNXI
736 config CMD_NAND_TRIMFFS
737 bool "nand write.trimffs"
738 default y if ARCH_SUNXI
740 Allows one to skip empty pages when flashing something on a NAND.
742 config CMD_NAND_LOCK_UNLOCK
743 bool "nand lock/unlock"
745 NAND locking support.
747 config CMD_NAND_TORTURE
750 NAND torture support.
755 bool "mmc_spi - Set up MMC SPI device"
757 Provides a way to set up an MMC (Multimedia Card) SPI (Serial
758 Peripheral Interface) device. The device provides a means of
759 accessing an MMC device via SPI using a single data line, limited
760 to 20MHz. It is useful since it reduces the amount of protocol code
764 bool "onenand - access to onenand device"
766 OneNAND is a brand of NAND ('Not AND' gate) flash which provides
767 various useful features. This command allows reading, writing,
768 and erasing blocks. It allso provides a way to show and change
769 bad blocks, and test the device.
773 select PARTITION_UUIDS
775 Read and display information about the partition table on
779 bool "pci - Access PCI devices"
781 Provide access to PCI (Peripheral Interconnect Bus), a type of bus
782 used on some devices to allow the CPU to communicate with its
783 peripherals. Sub-commands allow bus enumeration, displaying and
784 changing configuration space and a few other features.
787 bool "pinit - Set up PCMCIA device"
789 Provides a means to initialise a PCMCIA (Personal Computer Memory
790 Card International Association) device. This is an old standard from
791 about 1990. These devices are typically removable memory or network
792 cards using a standard 68-pin connector.
795 bool "read - Read binary data from a partition"
797 Provides low-level access to the data in a partition.
799 config CMD_REMOTEPROC
801 depends on REMOTEPROC
803 Support for Remote Processor control
806 bool "sata - Access SATA subsystem"
809 SATA (Serial Advanced Technology Attachment) is a serial bus
810 standard for connecting to hard drives and other storage devices.
811 This command provides information about attached devices and allows
812 reading, writing and other operations.
814 SATA replaces PATA (originally just ATA), which stands for Parallel AT
815 Attachment, where AT refers to an IBM AT (Advanced Technology)
816 computer released in 1984.
819 bool "saves - Save a file over serial in S-Record format"
821 Provides a way to save a binary file using the Motorola S-Record
822 format over the serial line.
825 bool "sdram - Print SDRAM configuration information"
827 Provides information about attached SDRAM. This assumed that the
828 SDRAM has an EEPROM with information that can be read using the
829 I2C bus. This is only available on some boards.
837 bool "sf test - Allow testing of SPI flash"
839 Provides a way to test that SPI flash is working correctly. The
840 test is destructive, in that an area of SPI flash must be provided
841 for the test to use. Performance information is also provided,
842 measuring the performance of reading, writing and erasing in
843 Mbps (Million Bits Per Second). This value should approximately
844 equal the SPI bus speed for a single-bit-wide SPI bus, assuming
845 everything is working properly.
857 config CMD_USB_MASS_STORAGE
858 bool "UMS usb mass storage"
860 USB mass storage support
865 menu "Shell scripting commands"
877 Return true/false on integer compare.
883 Run script from memory
889 Evaluate boolean and math expressions and store the result in an env
891 Also supports loading the value at a memory location into a variable.
892 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
896 menu "Network commands"
899 bool "bootp, tftpboot"
904 bootp - boot image via network using BOOTP/TFTP protocol
905 tftpboot - boot image via network using TFTP protocol
910 TFTP put command, for uploading files to a server
915 Act as a TFTP server and boot the first received file
920 Boot image via network using RARP/TFTP protocol
925 Boot image via network using DHCP/TFTP protocol
931 Boot image via network using PXE protocol
937 Boot image via network using NFS protocol.
942 Enable MII utility commands.
947 Send ICMP ECHO_REQUEST to network host
952 Perform CDP network configuration
957 Synchronize RTC via network
962 Lookup the IP of a hostname
964 config CMD_LINK_LOCAL
967 Acquire a network IP address using the link-local protocol
972 Allow control of L2 Ethernet switch commands. These are supported
973 by the vsc9953 Ethernet driver at present. Sub-commands allow
974 operations such as enabling / disabling a port and
975 viewing/maintaining the filtering database (FDB)
982 bool "Enable 'bmp' command"
983 depends on LCD || DM_VIDEO || VIDEO
985 This provides a way to obtain information about a BMP-format iamge
986 and to display it. BMP (which presumably stands for BitMaP) is a
987 file format defined by Microsoft which supports images of various
988 depths, formats and compression methods. Headers on the file
989 determine the formats used. This command can be used by first loading
990 the image into RAM, then using this command to look at it or display
994 bool "Enable board-specific commands"
996 (deprecated: instead, please define a Kconfig option for each command)
998 Some boards have board-specific commands which are only enabled
999 during developemnt and need to be turned off for production. This
1000 option provides a way to control this. The commands that are enabled
1001 vary depending on the board.
1003 config CMD_BKOPS_ENABLE
1004 bool "mmc bkops enable"
1008 Enable command for setting manual background operations handshake
1009 on a eMMC device. The feature is optionally available on eMMC devices
1010 conforming to standard >= 4.41.
1012 config CMD_BLOCK_CACHE
1013 bool "blkcache - control and stats for block cache"
1014 depends on BLOCK_CACHE
1015 default y if BLOCK_CACHE
1017 Enable the blkcache command, which can be used to control the
1018 operation of the cache functions.
1019 This is most useful when fine-tuning the operation of the cache
1020 during development, but also allows the cache to be disabled when
1021 it might hurt performance (e.g. when using the ums command).
1024 bool "icache or dcache"
1026 Enable the "icache" and "dcache" commands
1029 bool "Enable the 'display' command, for character displays"
1031 (this needs porting to driver model)
1032 This enables the 'display' command which allows a string to be
1033 displayed on a simple board-specific display. Implement
1034 display_putc() to use it.
1040 Enable the 'led' command which allows for control of LEDs supported
1041 by the board. The LEDs can be listed with 'led list' and controlled
1042 with led on/off/togle/blink. Any LED drivers can be controlled with
1043 this command, e.g. led_gpio.
1049 Enable the 'date' command for getting/setting the time/date in RTC
1055 Run commands and summarize execution time.
1058 bool "gettime - read elapsed time"
1060 Enable the 'gettime' command which reads the elapsed time since
1061 U-Boot started running. This shows the time in seconds and
1062 milliseconds. See also the 'bootstage' command which provides more
1063 flexibility for boot timing.
1065 # TODO: rename to CMD_SLEEP
1070 Delay execution for some time
1075 Access the system timer.
1081 This provides basic access to the U-Boot's sound support. The main
1082 feature is to play a beep.
1084 sound init - set up sound system
1085 sound play - play a sound
1091 This provides access to the QEMU firmware interface. The main
1092 feature is to allow easy loading of files passed to qemu-system
1093 via -kernel / -initrd
1095 source "cmd/mvebu/Kconfig"
1099 config CMD_BOOTSTAGE
1100 bool "Enable the 'bootstage' command"
1101 depends on BOOTSTAGE
1103 Add a 'bootstage' command which supports printing a report
1104 and un/stashing of bootstage data.
1106 menu "Power commands"
1108 bool "Enable Driver Model PMIC command"
1111 This is the pmic command, based on a driver model pmic's API.
1112 Command features are unchanged:
1113 - list - list pmic devices
1114 - pmic dev <id> - show or [set] operating pmic device (NEW)
1115 - pmic dump - dump registers
1116 - pmic read address - read byte of register at address
1117 - pmic write address - write byte to register at address
1118 The only one change for this command is 'dev' subcommand.
1120 config CMD_REGULATOR
1121 bool "Enable Driver Model REGULATOR command"
1122 depends on DM_REGULATOR
1124 This command is based on driver model regulator's API.
1125 User interface features:
1126 - list - list regulator devices
1127 - regulator dev <id> - show or [set] operating regulator device
1128 - regulator info - print constraints info
1129 - regulator status - print operating status
1130 - regulator value <val] <-f> - print/[set] voltage value [uV]
1131 - regulator current <val> - print/[set] current value [uA]
1132 - regulator mode <id> - print/[set] operating mode id
1133 - regulator enable - enable the regulator output
1134 - regulator disable - disable the regulator output
1136 The '-f' (force) option can be used for set the value which exceeds
1137 the limits, which are found in device-tree and are kept in regulator's
1138 uclass platdata structure.
1142 menu "Security commands"
1144 bool "Enable the 'aes' command"
1147 This provides a means to encrypt and decrypt data using the AES
1148 (Advanced Encryption Standard). This algorithm uses a symetric key
1149 and is widely used as a streaming cipher. Different key lengths are
1150 supported by the algorithm but this command only supports 128 bits
1154 bool "Enable the 'blob' command"
1156 This is used with the Freescale secure boot mechanism.
1158 Freescale's SEC block has built-in Blob Protocol which provides
1159 a method for protecting user-defined data across system power
1160 cycles. SEC block protects data in a data structure called a Blob,
1161 which provides both confidentiality and integrity protection.
1163 Encapsulating data as a blob
1164 Each time that the Blob Protocol is used to protect data, a
1165 different randomly generated key is used to encrypt the data.
1166 This random key is itself encrypted using a key which is derived
1167 from SoC's non-volatile secret key and a 16 bit Key identifier.
1168 The resulting encrypted key along with encrypted data is called a
1169 blob. The non-volatile secure key is available for use only during
1172 During decapsulation, the reverse process is performed to get back
1176 blob enc - encapsulating data as a cryptgraphic blob
1177 blob dec - decapsulating cryptgraphic blob to get the data
1181 blob enc src dst len km
1183 Encapsulate and create blob of data $len bytes long
1184 at address $src and store the result at address $dst.
1185 $km is the 16 byte key modifier is also required for
1186 generation/use as key for cryptographic operation. Key
1187 modifier should be 16 byte long.
1189 blob dec src dst len km
1191 Decapsulate the blob of data at address $src and
1192 store result of $len byte at addr $dst.
1193 $km is the 16 byte key modifier is also required for
1194 generation/use as key for cryptographic operation. Key
1195 modifier should be 16 byte long.
1198 bool "Support 'hash' command"
1201 This provides a way to hash data in memory using various supported
1202 algorithms (such as SHA1, MD5, CRC32). The computed digest can be
1203 saved to memory or to an environment variable. It is also possible
1204 to verify a hash against data in memory.
1210 Add -v option to verify data against a hash.
1213 bool "Enable the 'tpm' command"
1216 This provides a means to talk to a TPM from the command line. A wide
1217 range of commands if provided - see 'tpm help' for details. The
1218 command requires a suitable TPM on your board and the correct driver
1222 bool "Enable the 'tpm test' command"
1225 This provides a a series of tests to confirm that the TPM is working
1226 correctly. The tests cover initialisation, non-volatile RAM, extend,
1227 global lock and checking that timing is within expectations. The
1228 tests pass correctly on Infineon TPMs but may need to be adjusted
1233 menu "Firmware commands"
1235 bool "Enable crosec command"
1239 Enable command-line access to the Chrome OS EC (Embedded
1240 Controller). This provides the 'crosec' command which has
1241 a number of sub-commands for performing EC tasks such as
1242 updating its flash, accessing a small saved context area
1243 and talking to the I2C bus behind the EC (if there is one).
1246 menu "Filesystem commands"
1248 bool "Enable the 'cbfs' command"
1251 Define this to enable support for reading from a Coreboot
1252 filesystem. This is a ROM-based filesystem used for accessing files
1253 on systems that use coreboot as the first boot-loader and then load
1254 U-Boot to actually boot the Operating System. Available commands are
1255 cbfsinit, cbfsinfo, cbfsls and cbfsload.
1258 bool "Enable the 'cramfs' command"
1259 depends on FS_CRAMFS
1261 This provides commands for dealing with CRAMFS (Compressed ROM
1262 filesystem). CRAMFS is useful when space is tight since files are
1263 compressed. Two commands are provided:
1265 cramfsls - lists files in a cramfs image
1266 cramfsload - loads a file from a cramfs image
1269 bool "ext2 command support"
1271 Enables EXT2 FS command
1274 bool "ext4 command support"
1276 Enables EXT4 FS command
1278 config CMD_EXT4_WRITE
1280 bool "ext4 write command support"
1282 Enables EXT4 FS write command
1285 bool "FAT command support"
1288 Support for the FAT fs
1290 config CMD_FS_GENERIC
1291 bool "filesystem commands"
1293 Enables filesystem commands (e.g. load, ls) that work for multiple
1297 bool "fsuuid command"
1299 Enables fsuuid command for filesystem UUID.
1302 bool "jffs2 command"
1305 Enables commands to support the JFFS2 (Journalling Flash File System
1306 version 2) filesystem. This enables fsload, ls and fsinfo which
1307 provide the ability to load files, list directories and obtain
1308 filesystem information.
1311 bool "MTD partition support"
1313 MTD partition support
1315 config MTDIDS_DEFAULT
1316 string "Default MTD IDs"
1317 depends on CMD_MTDPARTS
1319 Defines a default MTD ID
1321 config MTDPARTS_DEFAULT
1322 string "Default MTD partition scheme"
1323 depends on CMD_MTDPARTS
1325 Defines a default MTD partitioning scheme in the Linux MTD command
1326 line partitions format
1328 config CMD_MTDPARTS_SPREAD
1329 bool "Padd partition size to take account of bad blocks"
1330 depends on CMD_MTDPARTS
1332 This enables the 'spread' sub-command of the mtdparts command.
1333 This command will modify the existing mtdparts variable by increasing
1334 the size of the partitions such that 1) each partition's net size is
1335 at least as large as the size specified in the mtdparts variable and
1336 2) each partition starts on a good block.
1339 bool "reiser - Access to reiserfs filesystems"
1341 This provides two commands which operate on a resierfs filesystem,
1342 commonly used some years ago:
1344 reiserls - list files
1345 reiserload - load a file
1348 bool "scsi - Access to SCSI devices"
1351 This provides a 'scsi' command which provides access to SCSI (Small
1352 Computer System Interface) devices. The command provides a way to
1353 scan the bus, reset the bus, read and write data and get information
1358 menu "Debug commands"
1363 The bedbug (emBEDded deBUGger) command provides debugging features
1364 for some PowerPC processors. For details please see the
1365 docuemntation in doc/README.beddbug
1368 bool "diag - Board diagnostics"
1370 This command provides access to board diagnostic tests. These are
1371 called Power-on Self Tests (POST). The command allows listing of
1372 available tests and running either all the tests, or specific tests
1376 bool "irq - Show information about interrupts"
1377 depends on !ARM && !MIPS && !SH
1379 This enables two commands:
1381 interrupts - enable or disable interrupts
1382 irqinfo - print device-specific interrupt information
1385 bool "kgdb - Allow debugging of U-Boot with gdb"
1387 This enables a 'kgdb' command which allows gdb to connect to U-Boot
1388 over a serial link for debugging purposes. This allows
1389 single-stepping, inspecting variables, etc. This is supported only
1390 on PowerPC at present.
1395 tristate "Enable UBI - Unsorted block images commands"
1399 default y if NAND_SUNXI
1401 UBI is a software layer above MTD layer which admits use of LVM-like
1402 logical volumes on top of MTD devices, hides some complexities of
1403 flash chips like wear and bad blocks and provides some other useful
1404 capabilities. Please, consult the MTD web site for more details
1405 (www.linux-mtd.infradead.org). Activate this option if you want
1406 to use U-Boot UBI commands.
1409 tristate "Enable UBIFS - Unsorted block images filesystem commands"
1413 default y if CMD_UBI
1415 UBIFS is a file system for flash devices which works on top of UBI.
projects / platform / kernel / u-boot.git / blob