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).
300 menu "Environment commands"
303 bool "ask for env variable"
305 Ask for environment variable
323 Edit environment variable.
328 Allow for searching environment variables
334 Save all environment variables into the compiled-in persistent
337 config CMD_ENV_EXISTS
341 Check if a variable is defined in the environment for use in
344 config CMD_ENV_CALLBACK
345 bool "env callbacks - print callbacks and their associated variables"
347 Some environment variable have callbacks defined by
348 U_BOOT_ENV_CALLBACK. These are called when the variable changes.
349 For example changing "baudrate" adjust the serial baud rate. This
350 command lists the currently defined callbacks.
353 bool "env flags -print variables that have non-default flags"
355 Some environment variables have special flags that control their
356 behaviour. For example, serial# can only be written once and cannot
357 be deleted. This command shows the variables that have special
362 menu "Memory commands"
365 bool "md, mm, nm, mw, cp, cmp, base, loop"
370 mm - memory modify (auto-incrementing address)
371 nm - memory modify (constant address)
372 mw - memory write (fill)
375 base - print or set address offset
376 loop - initialize loop on address range
389 Add -v option to verify data against a crc32 checksum.
392 bool "eeprom - EEPROM subsystem"
394 (deprecated, needs conversion to driver model)
395 Provides commands to read and write EEPROM (Electrically Erasable
396 Programmable Read Only Memory) chips that are connected over an
399 config CMD_EEPROM_LAYOUT
400 bool "Enable layout-aware eeprom commands"
401 depends on CMD_EEPROM
403 (deprecated, needs conversion to driver model)
404 When enabled, additional eeprom sub-commands become available.
406 eeprom print - prints the contents of the eeprom in a human-readable
407 way (eeprom layout fields, and data formatted to be fit for human
410 eeprom update - allows user to update eeprom fields by specifying
411 the field name, and providing the new data in a human readable format
412 (same format as displayed by the eeprom print command).
414 Both commands can either auto detect the layout, or be told which
418 __weak int parse_layout_version(char *str)
419 - override to provide your own layout name parsing
420 __weak void __eeprom_layout_assign(struct eeprom_layout *layout,
422 - override to setup the layout metadata based on the version
423 __weak int eeprom_layout_detect(unsigned char *data)
424 - override to provide your own algorithm for detecting layout
427 - contains various printing and updating functions for common
428 types of eeprom fields. Can be used for defining
431 config EEPROM_LAYOUT_HELP_STRING
432 string "Tells user what layout names are supported"
433 depends on CMD_EEPROM_LAYOUT
434 default "<not defined>"
436 Help printed with the LAYOUT VERSIONS part of the 'eeprom'
444 Compute MD5 checksum.
449 depends on CMD_MD5SUM
451 Add -v option to verify data against an MD5 checksum.
457 Compute SHA1 checksum.
459 config SHA1SUM_VERIFY
461 depends on CMD_SHA1SUM
463 Add -v option to verify data against a SHA1 checksum.
468 Infinite write loop on address range
473 Simple RAM read/write test.
478 mdc - memory display cyclic
479 mwc - memory write cyclic
484 Display memory information.
488 menu "Compression commands"
494 Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm)
500 Uncompress a zip-compressed memory region.
505 Compress a memory region with zlib deflate method.
509 menu "Device access commands"
512 #depends on FLASH_CFI_DRIVER
515 ARM Ltd reference designs flash partition access
518 bool "clk - Show clock frequencies"
521 Shows clock frequences by calling a sock_clk_dump() hook function.
522 This is depreated in favour of using the CLK uclass and accessing
523 clock values from associated drivers. However currently no command
527 bool "demo - Demonstration commands for driver model"
530 Provides a 'demo' command which can be used to play around with
531 driver model. To use this properly you will need to enable one or
532 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
533 Otherwise you will always get an empty list of devices. The demo
534 devices are defined in the sandbox device tree, so the easiest
535 option is to use sandbox and pass the -d point to sandbox's
540 select USB_FUNCTION_DFU
542 Enables the command "dfu" which is used to have U-Boot create a DFU
543 class device via USB.
546 bool "dm - Access to driver model information"
550 Provides access to driver model data structures and information,
551 such as a list of devices, list of uclasses and the state of each
552 device (e.g. activated). This is not required for operation, but
553 can be useful to see the state of driver model for debugging or
557 bool "fdcboot - Boot from floppy device"
559 The 'fdtboot' command allows booting an image from a floppy disk.
562 bool "flinfo, erase, protect"
566 flinfo - print FLASH memory information
568 protect - enable or disable FLASH write protection
576 config CMD_FPGA_LOADBP
577 bool "fpga loadbp - load partial bitstream (Xilinx only)"
580 Supports loading an FPGA device from a bitstream buffer containing
583 config CMD_FPGA_LOADFS
584 bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
587 Supports loading an FPGA device from a FAT filesystem.
589 config CMD_FPGA_LOADMK
590 bool "fpga loadmk - load bitstream from image"
593 Supports loading an FPGA device from a image generated by mkimage.
595 config CMD_FPGA_LOADP
596 bool "fpga loadp - load partial bitstream"
599 Supports loading an FPGA device from a bitstream buffer containing
603 bool "fpgad - dump FPGA registers"
605 (legacy, needs conversion to driver model)
606 Provides a way to dump FPGA registers by calling the board-specific
607 fpga_get_reg() function. This functions similarly to the 'md'
611 bool "fuse - support for the fuse subssystem"
613 (deprecated - needs conversion to driver model)
614 This allows reading, sensing, programming or overriding fuses
615 which control the behaviour of the device. The command uses the
624 bool "GPT (GUID Partition Table) command"
625 select PARTITION_UUIDS
628 Enable the 'gpt' command to ready and write GPT style partition
631 config CMD_GPT_RENAME
632 bool "GPT partition renaming commands"
635 Enables the 'gpt' command to interchange names on two GPT
636 partitions via the 'gpt swap' command or to rename single
637 partitions via the 'rename' command.
640 bool "ide - Support for IDE drivers"
643 Provides an 'ide' command which allows accessing the IDE drive,
644 reseting the IDE interface, printing the partition table and
645 geting device info. It also enables the 'diskboot' command which
646 permits booting from an IDE drive.
649 bool "io - Support for performing I/O accesses"
651 Provides an 'iod' command to display I/O space and an 'iow' command
652 to write values to the I/O space. This can be useful for manually
653 checking the state of devices during boot when debugging device
657 bool "iotrace - Support for tracing I/O activity"
659 Provides an 'iotrace' command which supports recording I/O reads and
660 writes in a trace buffer in memory . It also maintains a checksum
661 of the trace records (even if space is exhausted) so that the
662 sequence of I/O accesses can be verified.
664 When debugging drivers it is useful to see what I/O accesses were
665 done and in what order.
667 Even if the individual accesses are of little interest it can be
668 useful to verify that the access pattern is consistent each time
669 an operation is performed. In this case a checksum can be used to
670 characterise the operation of a driver. The checksum can be compared
671 across different runs of the operation to verify that the driver is
674 In particular, when performing major refactoring of the driver, where
675 the access pattern should not change, the checksum provides assurance
676 that the refactoring work has not broken the driver.
678 This works by sneaking into the io.h heder for an architecture and
679 redirecting I/O accesses through iotrace's tracing mechanism.
681 For now no commands are provided to examine the trace buffer. The
682 format is fairly simple, so 'md' is a reasonable substitute.
684 Note: The checksum feature is only useful for I/O regions where the
685 contents do not change outside of software control. Where this is not
686 suitable you can fall back to manually comparing the addresses. It
687 might be useful to enhance tracing to only checksum the accesses and
688 not the data read/written.
699 Load a binary file over serial line.
705 Load an S-Record file over serial line
710 MMC memory mapped support.
714 default y if NAND_SUNXI
719 config CMD_NAND_TRIMFFS
720 bool "nand write.trimffs"
721 default y if ARCH_SUNXI
723 Allows one to skip empty pages when flashing something on a NAND.
725 config CMD_NAND_LOCK_UNLOCK
726 bool "nand lock/unlock"
728 NAND locking support.
730 config CMD_NAND_TORTURE
733 NAND torture support.
738 bool "mmc_spi - Set up MMC SPI device"
740 Provides a way to set up an MMC (Multimedia Card) SPI (Serial
741 Peripheral Interface) device. The device provides a means of
742 accessing an MMC device via SPI using a single data line, limited
743 to 20MHz. It is useful since it reduces the amount of protocol code
747 bool "onenand - access to onenand device"
749 OneNAND is a brand of NAND ('Not AND' gate) flash which provides
750 various useful features. This command allows reading, writing,
751 and erasing blocks. It allso provides a way to show and change
752 bad blocks, and test the device.
756 select PARTITION_UUIDS
758 Read and display information about the partition table on
762 bool "pci - Access PCI devices"
764 Provide access to PCI (Peripheral Interconnect Bus), a type of bus
765 used on some devices to allow the CPU to communicate with its
766 peripherals. Sub-commands allow bus enumeration, displaying and
767 changing configuration space and a few other features.
770 bool "pinit - Set up PCMCIA device"
772 Provides a means to initialise a PCMCIA (Personal Computer Memory
773 Card International Association) device. This is an old standard from
774 about 1990. These devices are typically removable memory or network
775 cards using a standard 68-pin connector.
778 bool "read - Read binary data from a partition"
780 Provides low-level access to the data in a partition.
782 config CMD_REMOTEPROC
784 depends on REMOTEPROC
786 Support for Remote Processor control
789 bool "sata - Access SATA subsystem"
792 SATA (Serial Advanced Technology Attachment) is a serial bus
793 standard for connecting to hard drives and other storage devices.
794 This command provides information about attached devices and allows
795 reading, writing and other operations.
797 SATA replaces PATA (originally just ATA), which stands for Parallel AT
798 Attachment, where AT refers to an IBM AT (Advanced Technology)
799 computer released in 1984.
802 bool "saves - Save a file over serial in S-Record format"
804 Provides a way to save a binary file using the Motorola S-Record
805 format over the serial line.
808 bool "sdram - Print SDRAM configuration information"
810 Provides information about attached SDRAM. This assumed that the
811 SDRAM has an EEPROM with information that can be read using the
812 I2C bus. This is only available on some boards.
820 bool "sf test - Allow testing of SPI flash"
822 Provides a way to test that SPI flash is working correctly. The
823 test is destructive, in that an area of SPI flash must be provided
824 for the test to use. Performance information is also provided,
825 measuring the performance of reading, writing and erasing in
826 Mbps (Million Bits Per Second). This value should approximately
827 equal the SPI bus speed for a single-bit-wide SPI bus, assuming
828 everything is working properly.
840 config CMD_USB_MASS_STORAGE
841 bool "UMS usb mass storage"
843 USB mass storage support
848 menu "Shell scripting commands"
860 Return true/false on integer compare.
866 Run script from memory
872 Evaluate boolean and math expressions and store the result in an env
874 Also supports loading the value at a memory location into a variable.
875 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
879 menu "Network commands"
882 bool "bootp, tftpboot"
887 bootp - boot image via network using BOOTP/TFTP protocol
888 tftpboot - boot image via network using TFTP protocol
893 TFTP put command, for uploading files to a server
898 Act as a TFTP server and boot the first received file
903 Boot image via network using RARP/TFTP protocol
908 Boot image via network using DHCP/TFTP protocol
914 Boot image via network using PXE protocol
920 Boot image via network using NFS protocol.
925 Enable MII utility commands.
930 Send ICMP ECHO_REQUEST to network host
935 Perform CDP network configuration
940 Synchronize RTC via network
945 Lookup the IP of a hostname
947 config CMD_LINK_LOCAL
950 Acquire a network IP address using the link-local protocol
955 Allow control of L2 Ethernet switch commands. These are supported
956 by the vsc9953 Ethernet driver at present. Sub-commands allow
957 operations such as enabling / disabling a port and
958 viewing/maintaining the filtering database (FDB)
965 bool "Enable 'bmp' command"
966 depends on LCD || DM_VIDEO || VIDEO
968 This provides a way to obtain information about a BMP-format iamge
969 and to display it. BMP (which presumably stands for BitMaP) is a
970 file format defined by Microsoft which supports images of various
971 depths, formats and compression methods. Headers on the file
972 determine the formats used. This command can be used by first loading
973 the image into RAM, then using this command to look at it or display
977 bool "Enable board-specific commands"
979 (deprecated: instead, please define a Kconfig option for each command)
981 Some boards have board-specific commands which are only enabled
982 during developemnt and need to be turned off for production. This
983 option provides a way to control this. The commands that are enabled
984 vary depending on the board.
986 config CMD_BKOPS_ENABLE
987 bool "mmc bkops enable"
991 Enable command for setting manual background operations handshake
992 on a eMMC device. The feature is optionally available on eMMC devices
993 conforming to standard >= 4.41.
995 config CMD_BLOCK_CACHE
996 bool "blkcache - control and stats for block cache"
997 depends on BLOCK_CACHE
998 default y if BLOCK_CACHE
1000 Enable the blkcache command, which can be used to control the
1001 operation of the cache functions.
1002 This is most useful when fine-tuning the operation of the cache
1003 during development, but also allows the cache to be disabled when
1004 it might hurt performance (e.g. when using the ums command).
1007 bool "icache or dcache"
1009 Enable the "icache" and "dcache" commands
1012 bool "Enable the 'display' command, for character displays"
1014 (this needs porting to driver model)
1015 This enables the 'display' command which allows a string to be
1016 displayed on a simple board-specific display. Implement
1017 display_putc() to use it.
1023 Enable the 'led' command which allows for control of LEDs supported
1024 by the board. The LEDs can be listed with 'led list' and controlled
1025 with led on/off/togle/blink. Any LED drivers can be controlled with
1026 this command, e.g. led_gpio.
1032 Enable the 'date' command for getting/setting the time/date in RTC
1038 Run commands and summarize execution time.
1041 bool "gettime - read elapsed time"
1043 Enable the 'gettime' command which reads the elapsed time since
1044 U-Boot started running. This shows the time in seconds and
1045 milliseconds. See also the 'bootstage' command which provides more
1046 flexibility for boot timing.
1048 # TODO: rename to CMD_SLEEP
1053 Delay execution for some time
1058 Access the system timer.
1064 This provides basic access to the U-Boot's sound support. The main
1065 feature is to play a beep.
1067 sound init - set up sound system
1068 sound play - play a sound
1074 This provides access to the QEMU firmware interface. The main
1075 feature is to allow easy loading of files passed to qemu-system
1076 via -kernel / -initrd
1078 source "cmd/mvebu/Kconfig"
1082 config CMD_BOOTSTAGE
1083 bool "Enable the 'bootstage' command"
1084 depends on BOOTSTAGE
1086 Add a 'bootstage' command which supports printing a report
1087 and un/stashing of bootstage data.
1089 menu "Power commands"
1091 bool "Enable Driver Model PMIC command"
1094 This is the pmic command, based on a driver model pmic's API.
1095 Command features are unchanged:
1096 - list - list pmic devices
1097 - pmic dev <id> - show or [set] operating pmic device (NEW)
1098 - pmic dump - dump registers
1099 - pmic read address - read byte of register at address
1100 - pmic write address - write byte to register at address
1101 The only one change for this command is 'dev' subcommand.
1103 config CMD_REGULATOR
1104 bool "Enable Driver Model REGULATOR command"
1105 depends on DM_REGULATOR
1107 This command is based on driver model regulator's API.
1108 User interface features:
1109 - list - list regulator devices
1110 - regulator dev <id> - show or [set] operating regulator device
1111 - regulator info - print constraints info
1112 - regulator status - print operating status
1113 - regulator value <val] <-f> - print/[set] voltage value [uV]
1114 - regulator current <val> - print/[set] current value [uA]
1115 - regulator mode <id> - print/[set] operating mode id
1116 - regulator enable - enable the regulator output
1117 - regulator disable - disable the regulator output
1119 The '-f' (force) option can be used for set the value which exceeds
1120 the limits, which are found in device-tree and are kept in regulator's
1121 uclass platdata structure.
1125 menu "Security commands"
1127 bool "Enable the 'aes' command"
1130 This provides a means to encrypt and decrypt data using the AES
1131 (Advanced Encryption Standard). This algorithm uses a symetric key
1132 and is widely used as a streaming cipher. Different key lengths are
1133 supported by the algorithm but this command only supports 128 bits
1137 bool "Enable the 'blob' command"
1139 This is used with the Freescale secure boot mechanism.
1141 Freescale's SEC block has built-in Blob Protocol which provides
1142 a method for protecting user-defined data across system power
1143 cycles. SEC block protects data in a data structure called a Blob,
1144 which provides both confidentiality and integrity protection.
1146 Encapsulating data as a blob
1147 Each time that the Blob Protocol is used to protect data, a
1148 different randomly generated key is used to encrypt the data.
1149 This random key is itself encrypted using a key which is derived
1150 from SoC's non-volatile secret key and a 16 bit Key identifier.
1151 The resulting encrypted key along with encrypted data is called a
1152 blob. The non-volatile secure key is available for use only during
1155 During decapsulation, the reverse process is performed to get back
1159 blob enc - encapsulating data as a cryptgraphic blob
1160 blob dec - decapsulating cryptgraphic blob to get the data
1164 blob enc src dst len km
1166 Encapsulate and create blob of data $len bytes long
1167 at address $src and store the result at address $dst.
1168 $km is the 16 byte key modifier is also required for
1169 generation/use as key for cryptographic operation. Key
1170 modifier should be 16 byte long.
1172 blob dec src dst len km
1174 Decapsulate the blob of data at address $src and
1175 store result of $len byte at addr $dst.
1176 $km is the 16 byte key modifier is also required for
1177 generation/use as key for cryptographic operation. Key
1178 modifier should be 16 byte long.
1181 bool "Support 'hash' command"
1184 This provides a way to hash data in memory using various supported
1185 algorithms (such as SHA1, MD5, CRC32). The computed digest can be
1186 saved to memory or to an environment variable. It is also possible
1187 to verify a hash against data in memory.
1193 Add -v option to verify data against a hash.
1196 bool "Enable the 'tpm' command"
1199 This provides a means to talk to a TPM from the command line. A wide
1200 range of commands if provided - see 'tpm help' for details. The
1201 command requires a suitable TPM on your board and the correct driver
1205 bool "Enable the 'tpm test' command"
1208 This provides a a series of tests to confirm that the TPM is working
1209 correctly. The tests cover initialisation, non-volatile RAM, extend,
1210 global lock and checking that timing is within expectations. The
1211 tests pass correctly on Infineon TPMs but may need to be adjusted
1216 menu "Firmware commands"
1218 bool "Enable crosec command"
1222 Enable command-line access to the Chrome OS EC (Embedded
1223 Controller). This provides the 'crosec' command which has
1224 a number of sub-commands for performing EC tasks such as
1225 updating its flash, accessing a small saved context area
1226 and talking to the I2C bus behind the EC (if there is one).
1229 menu "Filesystem commands"
1231 bool "Enable the 'cbfs' command"
1234 Define this to enable support for reading from a Coreboot
1235 filesystem. This is a ROM-based filesystem used for accessing files
1236 on systems that use coreboot as the first boot-loader and then load
1237 U-Boot to actually boot the Operating System. Available commands are
1238 cbfsinit, cbfsinfo, cbfsls and cbfsload.
1241 bool "Enable the 'cramfs' command"
1242 depends on FS_CRAMFS
1244 This provides commands for dealing with CRAMFS (Compressed ROM
1245 filesystem). CRAMFS is useful when space is tight since files are
1246 compressed. Two commands are provided:
1248 cramfsls - lists files in a cramfs image
1249 cramfsload - loads a file from a cramfs image
1252 bool "ext2 command support"
1254 Enables EXT2 FS command
1257 bool "ext4 command support"
1259 Enables EXT4 FS command
1261 config CMD_EXT4_WRITE
1263 bool "ext4 write command support"
1265 Enables EXT4 FS write command
1268 bool "FAT command support"
1271 Support for the FAT fs
1273 config CMD_FS_GENERIC
1274 bool "filesystem commands"
1276 Enables filesystem commands (e.g. load, ls) that work for multiple
1280 bool "fsuuid command"
1282 Enables fsuuid command for filesystem UUID.
1285 bool "jffs2 command"
1288 Enables commands to support the JFFS2 (Journalling Flash File System
1289 version 2) filesystem. This enables fsload, ls and fsinfo which
1290 provide the ability to load files, list directories and obtain
1291 filesystem information.
1294 bool "MTD partition support"
1296 MTD partition support
1298 config MTDIDS_DEFAULT
1299 string "Default MTD IDs"
1300 depends on CMD_MTDPARTS
1302 Defines a default MTD ID
1304 config MTDPARTS_DEFAULT
1305 string "Default MTD partition scheme"
1306 depends on CMD_MTDPARTS
1308 Defines a default MTD partitioning scheme in the Linux MTD command
1309 line partitions format
1311 config CMD_MTDPARTS_SPREAD
1312 bool "Padd partition size to take account of bad blocks"
1313 depends on CMD_MTDPARTS
1315 This enables the 'spread' sub-command of the mtdparts command.
1316 This command will modify the existing mtdparts variable by increasing
1317 the size of the partitions such that 1) each partition's net size is
1318 at least as large as the size specified in the mtdparts variable and
1319 2) each partition starts on a good block.
1322 bool "reiser - Access to reiserfs filesystems"
1324 This provides two commands which operate on a resierfs filesystem,
1325 commonly used some years ago:
1327 reiserls - list files
1328 reiserload - load a file
1331 bool "scsi - Access to SCSI devices"
1334 This provides a 'scsi' command which provides access to SCSI (Small
1335 Computer System Interface) devices. The command provides a way to
1336 scan the bus, reset the bus, read and write data and get information
1341 menu "Debug commands"
1346 The bedbug (emBEDded deBUGger) command provides debugging features
1347 for some PowerPC processors. For details please see the
1348 docuemntation in doc/README.beddbug
1351 bool "diag - Board diagnostics"
1353 This command provides access to board diagnostic tests. These are
1354 called Power-on Self Tests (POST). The command allows listing of
1355 available tests and running either all the tests, or specific tests
1359 bool "irq - Show information about interrupts"
1360 depends on !ARM && !MIPS && !SH
1362 This enables two commands:
1364 interrupts - enable or disable interrupts
1365 irqinfo - print device-specific interrupt information
1368 bool "kgdb - Allow debugging of U-Boot with gdb"
1370 This enables a 'kgdb' command which allows gdb to connect to U-Boot
1371 over a serial link for debugging purposes. This allows
1372 single-stepping, inspecting variables, etc. This is supported only
1373 on PowerPC at present.
1378 tristate "Enable UBI - Unsorted block images commands"
1382 default y if NAND_SUNXI
1384 UBI is a software layer above MTD layer which admits use of LVM-like
1385 logical volumes on top of MTD devices, hides some complexities of
1386 flash chips like wear and bad blocks and provides some other useful
1387 capabilities. Please, consult the MTD web site for more details
1388 (www.linux-mtd.infradead.org). Activate this option if you want
1389 to use U-Boot UBI commands.
1392 tristate "Enable UBIFS - Unsorted block images filesystem commands"
1396 default y if CMD_UBI
1398 UBIFS is a file system for flash devices which works on top of UBI.
projects / platform / kernel / u-boot.git / blob