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.
273 menu "Environment commands"
276 bool "ask for env variable"
278 Ask for environment variable
296 Edit environment variable.
301 Allow for searching environment variables
307 Save all environment variables into the compiled-in persistent
310 config CMD_ENV_EXISTS
314 Check if a variable is defined in the environment for use in
319 menu "Memory commands"
322 bool "md, mm, nm, mw, cp, cmp, base, loop"
327 mm - memory modify (auto-incrementing address)
328 nm - memory modify (constant address)
329 mw - memory write (fill)
332 base - print or set address offset
333 loop - initialize loop on address range
344 Infinite write loop on address range
349 Simple RAM read/write test.
354 mdc - memory display cyclic
355 mwc - memory write cyclic
360 Display memory information.
364 menu "Device access commands"
367 bool "dm - Access to driver model information"
371 Provides access to driver model data structures and information,
372 such as a list of devices, list of uclasses and the state of each
373 device (e.g. activated). This is not required for operation, but
374 can be useful to see the state of driver model for debugging or
378 bool "demo - Demonstration commands for driver model"
381 Provides a 'demo' command which can be used to play around with
382 driver model. To use this properly you will need to enable one or
383 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
384 Otherwise you will always get an empty list of devices. The demo
385 devices are defined in the sandbox device tree, so the easiest
386 option is to use sandbox and pass the -d point to sandbox's
393 Load a binary file over serial line.
399 Load an S-Record file over serial line
402 bool "flinfo, erase, protect"
406 flinfo - print FLASH memory information
408 protect - enable or disable FLASH write protection
411 bool "GPT (GUID Partition Table) command"
412 select PARTITION_UUIDS
415 Enable the 'gpt' command to ready and write GPT style partition
419 #depends on FLASH_CFI_DRIVER
422 ARM Ltd reference designs flash partition access
427 MMC memory mapped support.
436 select PARTITION_UUIDS
438 Read and display information about the partition table on
463 select USB_FUNCTION_DFU
465 Enables the command "dfu" which is used to have U-Boot create a DFU
466 class device via USB.
468 config CMD_USB_MASS_STORAGE
469 bool "UMS usb mass storage"
471 USB mass storage support
479 config CMD_REMOTEPROC
481 depends on REMOTEPROC
483 Support for Remote Processor control
493 menu "Shell scripting commands"
505 Return true/false on integer compare.
511 Run script from memory
517 Evaluate boolean and math expressions and store the result in an env
519 Also supports loading the value at a memory location into a variable.
520 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
524 menu "Network commands"
527 bool "bootp, tftpboot"
532 bootp - boot image via network using BOOTP/TFTP protocol
533 tftpboot - boot image via network using TFTP protocol
538 TFTP put command, for uploading files to a server
543 Act as a TFTP server and boot the first received file
548 Boot image via network using RARP/TFTP protocol
553 Boot image via network using DHCP/TFTP protocol
559 Boot image via network using PXE protocol
565 Boot image via network using NFS protocol.
570 Enable MII utility commands.
575 Send ICMP ECHO_REQUEST to network host
580 Perform CDP network configuration
585 Synchronize RTC via network
590 Lookup the IP of a hostname
592 config CMD_LINK_LOCAL
595 Acquire a network IP address using the link-local protocol
606 Lists AMBA Plug-n-Play information.
608 config SYS_AMBAPP_PRINT_ON_STARTUP
609 bool "Show AMBA PnP info on startup"
610 depends on CMD_AMBAPP
613 Show AMBA Plug-n-Play information on startup.
615 config CMD_BKOPS_ENABLE
616 bool "mmc bkops enable"
620 Enable command for setting manual background operations handshake
621 on a eMMC device. The feature is optionally available on eMMC devices
622 conforming to standard >= 4.41.
624 config CMD_BLOCK_CACHE
625 bool "blkcache - control and stats for block cache"
626 depends on BLOCK_CACHE
627 default y if BLOCK_CACHE
629 Enable the blkcache command, which can be used to control the
630 operation of the cache functions.
631 This is most useful when fine-tuning the operation of the cache
632 during development, but also allows the cache to be disabled when
633 it might hurt performance (e.g. when using the ums command).
636 bool "icache or dcache"
638 Enable the "icache" and "dcache" commands
643 Run commands and summarize execution time.
645 # TODO: rename to CMD_SLEEP
650 Delay execution for some time
655 Access the system timer.
658 bool "getdcr, setdcr, getidcr, setidcr"
662 getdcr - Get an AMCC PPC 4xx DCR's value
663 setdcr - Set an AMCC PPC 4xx DCR's value
664 getidcr - Get a register value via indirect DCR addressing
665 setidcr - Set a register value via indirect DCR addressing
671 This provides basic access to the U-Boot's sound support. The main
672 feature is to play a beep.
674 sound init - set up sound system
675 sound play - play a sound
681 This provides access to the QEMU firmware interface. The main
682 feature is to allow easy loading of files passed to qemu-system
683 via -kernel / -initrd
685 source "cmd/mvebu/Kconfig"
690 bool "Enable the 'bootstage' command"
693 Add a 'bootstage' command which supports printing a report
694 and un/stashing of bootstage data.
696 menu "Power commands"
698 bool "Enable Driver Model PMIC command"
701 This is the pmic command, based on a driver model pmic's API.
702 Command features are unchanged:
703 - list - list pmic devices
704 - pmic dev <id> - show or [set] operating pmic device (NEW)
705 - pmic dump - dump registers
706 - pmic read address - read byte of register at address
707 - pmic write address - write byte to register at address
708 The only one change for this command is 'dev' subcommand.
711 bool "Enable Driver Model REGULATOR command"
712 depends on DM_REGULATOR
714 This command is based on driver model regulator's API.
715 User interface features:
716 - list - list regulator devices
717 - regulator dev <id> - show or [set] operating regulator device
718 - regulator info - print constraints info
719 - regulator status - print operating status
720 - regulator value <val] <-f> - print/[set] voltage value [uV]
721 - regulator current <val> - print/[set] current value [uA]
722 - regulator mode <id> - print/[set] operating mode id
723 - regulator enable - enable the regulator output
724 - regulator disable - disable the regulator output
726 The '-f' (force) option can be used for set the value which exceeds
727 the limits, which are found in device-tree and are kept in regulator's
728 uclass platdata structure.
732 menu "Security commands"
734 bool "Enable the 'tpm' command"
737 This provides a means to talk to a TPM from the command line. A wide
738 range of commands if provided - see 'tpm help' for details. The
739 command requires a suitable TPM on your board and the correct driver
743 bool "Enable the 'tpm test' command"
746 This provides a a series of tests to confirm that the TPM is working
747 correctly. The tests cover initialisation, non-volatile RAM, extend,
748 global lock and checking that timing is within expectations. The
749 tests pass correctly on Infineon TPMs but may need to be adjusted
754 menu "Firmware commands"
756 bool "Enable crosec command"
760 Enable command-line access to the Chrome OS EC (Embedded
761 Controller). This provides the 'crosec' command which has
762 a number of sub-commands for performing EC tasks such as
763 updating its flash, accessing a small saved context area
764 and talking to the I2C bus behind the EC (if there is one).
767 menu "Filesystem commands"
769 bool "ext2 command support"
771 Enables EXT2 FS command
774 bool "ext4 command support"
776 Enables EXT4 FS command
778 config CMD_EXT4_WRITE
780 bool "ext4 write command support"
782 Enables EXT4 FS write command
785 bool "FAT command support"
787 Support for the FAT fs
789 config CMD_FS_GENERIC
790 bool "filesystem commands"
792 Enables filesystem commands (e.g. load, ls) that work for multiple
797 tristate "Enable UBI - Unsorted block images commands"
801 UBI is a software layer above MTD layer which admits use of LVM-like
802 logical volumes on top of MTD devices, hides some complexities of
803 flash chips like wear and bad blocks and provides some other useful
804 capabilities. Please, consult the MTD web site for more details
805 (www.linux-mtd.infradead.org). Activate this option if you want
806 to use U-Boot UBI commands.