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"
133 Print console devices and information.
138 Print information about available CPUs. This normally shows the
139 number of CPUs, type (e.g. manufacturer, architecture, product or
140 internal name) and clock frequency. Other information may be
141 available depending on the CPU driver.
146 Print GPL license text
156 Run the command stored in the environment "bootcmd", i.e.
157 "bootd" does the same thing as "run bootcmd".
163 Boot an application image from the memory.
168 Boot the Linux zImage
175 Boot an AArch64 Linux Kernel image from memory.
179 depends on EFI_LOADER
182 Boot an EFI image from memory.
184 config CMD_BOOTEFI_HELLO
185 bool "Allow booting a standard EFI hello world for testing"
186 depends on CMD_BOOTEFI && (ARM || X86)
188 This adds a standard EFI hello world application to U-Boot so that
189 it can be used with the 'bootefi hello' command. This is useful
190 for testing that EFI is working at a basic level, and for bringing
191 up EFI support on a new architecture.
194 bool "bootelf, bootvx"
197 Boot an ELF/vxWorks image from the memory.
200 bool "Flattened Device Tree utility commands"
204 Do FDT related setup before booting into the Operating System.
210 Start an application at a given address.
216 Run the command in the given environment variable.
222 Print header information for application image.
228 List all images found in flash
234 Extract a part of a multi-image.
241 menu "Environment commands"
244 bool "ask for env variable"
246 Ask for environment variable
264 Edit environment variable.
269 Allow for searching environment variables
275 Save all environment variables into the compiled-in persistent
278 config CMD_ENV_EXISTS
282 Check if a variable is defined in the environment for use in
287 menu "Memory commands"
290 bool "md, mm, nm, mw, cp, cmp, base, loop"
295 mm - memory modify (auto-incrementing address)
296 nm - memory modify (constant address)
297 mw - memory write (fill)
300 base - print or set address offset
301 loop - initinite loop on address range
312 Infinite write loop on address range
317 Simple RAM read/write test.
322 mdc - memory display cyclic
323 mwc - memory write cyclic
328 Display memory information.
332 menu "Device access commands"
335 bool "dm - Access to driver model information"
339 Provides access to driver model data structures and information,
340 such as a list of devices, list of uclasses and the state of each
341 device (e.g. activated). This is not required for operation, but
342 can be useful to see the state of driver model for debugging or
346 bool "demo - Demonstration commands for driver model"
349 Provides a 'demo' command which can be used to play around with
350 driver model. To use this properly you will need to enable one or
351 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
352 Otherwise you will always get an empty list of devices. The demo
353 devices are defined in the sandbox device tree, so the easiest
354 option is to use sandbox and pass the -d point to sandbox's
361 Load a binary file over serial line.
367 Load an S-Record file over serial line
370 bool "flinfo, erase, protect"
374 flinfo - print FLASH memory information
376 protect - enable or disable FLASH write protection
379 #depends on FLASH_CFI_DRIVER
382 ARM Ltd reference designs flash partition access
387 MMC memory mapped support.
416 select USB_FUNCTION_DFU
418 Enables the command "dfu" which is used to have U-Boot create a DFU
419 class device via USB.
421 config CMD_USB_MASS_STORAGE
422 bool "UMS usb mass storage"
424 USB mass storage support
432 config CMD_REMOTEPROC
434 depends on REMOTEPROC
436 Support for Remote Processor control
446 menu "Shell scripting commands"
458 Return true/false on integer compare.
464 Run script from memory
470 Evaluate boolean and math expressions and store the result in an env
472 Also supports loading the value at a memory location into a variable.
473 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
477 menu "Network commands"
480 bool "bootp, tftpboot"
485 bootp - boot image via network using BOOTP/TFTP protocol
486 tftpboot - boot image via network using TFTP protocol
491 TFTP put command, for uploading files to a server
496 Act as a TFTP server and boot the first received file
501 Boot image via network using RARP/TFTP protocol
506 Boot image via network using DHCP/TFTP protocol
512 Boot image via network using NFS protocol.
517 Enable MII utility commands.
522 Send ICMP ECHO_REQUEST to network host
527 Perform CDP network configuration
532 Synchronize RTC via network
537 Lookup the IP of a hostname
539 config CMD_LINK_LOCAL
542 Acquire a network IP address using the link-local protocol
553 Lists AMBA Plug-n-Play information.
555 config SYS_AMBAPP_PRINT_ON_STARTUP
556 bool "Show AMBA PnP info on startup"
557 depends on CMD_AMBAPP
560 Show AMBA Plug-n-Play information on startup.
562 config CMD_BLOCK_CACHE
563 bool "blkcache - control and stats for block cache"
564 depends on BLOCK_CACHE
565 default y if BLOCK_CACHE
567 Enable the blkcache command, which can be used to control the
568 operation of the cache functions.
569 This is most useful when fine-tuning the operation of the cache
570 during development, but also allows the cache to be disabled when
571 it might hurt performance (e.g. when using the ums command).
574 bool "icache or dcache"
576 Enable the "icache" and "dcache" commands
581 Run commands and summarize execution time.
583 # TODO: rename to CMD_SLEEP
588 Delay execution for some time
593 Access the system timer.
596 bool "getdcr, setdcr, getidcr, setidcr"
600 getdcr - Get an AMCC PPC 4xx DCR's value
601 setdcr - Set an AMCC PPC 4xx DCR's value
602 getidcr - Get a register value via indirect DCR addressing
603 setidcr - Set a register value via indirect DCR addressing
609 This provides basic access to the U-Boot's sound support. The main
610 feature is to play a beep.
612 sound init - set up sound system
613 sound play - play a sound
619 This provides access to the QEMU firmware interface. The main
620 feature is to allow easy loading of files passed to qemu-system
621 via -kernel / -initrd
625 bool "Enable the 'bootstage' command"
628 Add a 'bootstage' command which supports printing a report
629 and un/stashing of bootstage data.
631 menu "Power commands"
633 bool "Enable Driver Model PMIC command"
636 This is the pmic command, based on a driver model pmic's API.
637 Command features are unchanged:
638 - list - list pmic devices
639 - pmic dev <id> - show or [set] operating pmic device (NEW)
640 - pmic dump - dump registers
641 - pmic read address - read byte of register at address
642 - pmic write address - write byte to register at address
643 The only one change for this command is 'dev' subcommand.
646 bool "Enable Driver Model REGULATOR command"
647 depends on DM_REGULATOR
649 This command is based on driver model regulator's API.
650 User interface features:
651 - list - list regulator devices
652 - regulator dev <id> - show or [set] operating regulator device
653 - regulator info - print constraints info
654 - regulator status - print operating status
655 - regulator value <val] <-f> - print/[set] voltage value [uV]
656 - regulator current <val> - print/[set] current value [uA]
657 - regulator mode <id> - print/[set] operating mode id
658 - regulator enable - enable the regulator output
659 - regulator disable - disable the regulator output
661 The '-f' (force) option can be used for set the value which exceeds
662 the limits, which are found in device-tree and are kept in regulator's
663 uclass platdata structure.
667 menu "Security commands"
669 bool "Enable the 'tpm' command"
672 This provides a means to talk to a TPM from the command line. A wide
673 range of commands if provided - see 'tpm help' for details. The
674 command requires a suitable TPM on your board and the correct driver
678 bool "Enable the 'tpm test' command"
681 This provides a a series of tests to confirm that the TPM is working
682 correctly. The tests cover initialisation, non-volatile RAM, extend,
683 global lock and checking that timing is within expectations. The
684 tests pass correctly on Infineon TPMs but may need to be adjusted
689 menu "Firmware commands"
691 bool "Enable crosec command"
695 Enable command-line access to the Chrome OS EC (Embedded
696 Controller). This provides the 'crosec' command which has
697 a number of sub-commands for performing EC tasks such as
698 updating its flash, accessing a small saved context area
699 and talking to the I2C bus behind the EC (if there is one).
702 menu "Filesystem commands"
704 bool "ext2 command support"
706 Enables EXT2 FS command
709 bool "ext4 command support"
711 Enables EXT4 FS command
713 config CMD_EXT4_WRITE
715 bool "ext4 write command support"
717 Enables EXT4 FS write command
720 bool "FAT command support"
722 Support for the FAT fs
724 config CMD_FS_GENERIC
725 bool "filesystem commands"
727 Enables filesystem commands (e.g. load, ls) that work for multiple
732 tristate "Enable UBI - Unsorted block images commands"
736 UBI is a software layer above MTD layer which admits use of LVM-like
737 logical volumes on top of MTD devices, hides some complexities of
738 flash chips like wear and bad blocks and provides some other useful
739 capabilities. Please, consult the MTD web site for more details
740 (www.linux-mtd.infradead.org). Activate this option if you want
741 to use U-Boot UBI commands.