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.
185 bool "bootelf, bootvx"
188 Boot an ELF/vxWorks image from the memory.
191 bool "Flattened Device Tree utility commands"
195 Do FDT related setup before booting into the Operating System.
201 Start an application at a given address.
207 Run the command in the given environment variable.
213 Print header information for application image.
219 List all images found in flash
225 Extract a part of a multi-image.
232 menu "Environment commands"
235 bool "ask for env variable"
237 Ask for environment variable
255 Edit environment variable.
260 Allow for searching environment variables
266 Save all environment variables into the compiled-in persistent
269 config CMD_ENV_EXISTS
273 Check if a variable is defined in the environment for use in
278 menu "Memory commands"
281 bool "md, mm, nm, mw, cp, cmp, base, loop"
286 mm - memory modify (auto-incrementing address)
287 nm - memory modify (constant address)
288 mw - memory write (fill)
291 base - print or set address offset
292 loop - initinite loop on address range
303 Infinite write loop on address range
308 Simple RAM read/write test.
313 mdc - memory display cyclic
314 mwc - memory write cyclic
319 Display memory information.
323 menu "Device access commands"
326 bool "dm - Access to driver model information"
330 Provides access to driver model data structures and information,
331 such as a list of devices, list of uclasses and the state of each
332 device (e.g. activated). This is not required for operation, but
333 can be useful to see the state of driver model for debugging or
337 bool "demo - Demonstration commands for driver model"
340 Provides a 'demo' command which can be used to play around with
341 driver model. To use this properly you will need to enable one or
342 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
343 Otherwise you will always get an empty list of devices. The demo
344 devices are defined in the sandbox device tree, so the easiest
345 option is to use sandbox and pass the -d point to sandbox's
352 Load a binary file over serial line.
358 Load an S-Record file over serial line
361 bool "flinfo, erase, protect"
365 flinfo - print FLASH memory information
367 protect - enable or disable FLASH write protection
370 #depends on FLASH_CFI_DRIVER
373 ARM Ltd reference designs flash partition access
378 MMC memory mapped support.
407 select USB_FUNCTION_DFU
409 Enables the command "dfu" which is used to have U-Boot create a DFU
410 class device via USB.
412 config CMD_USB_MASS_STORAGE
413 bool "UMS usb mass storage"
415 USB mass storage support
423 config CMD_REMOTEPROC
425 depends on REMOTEPROC
427 Support for Remote Processor control
437 menu "Shell scripting commands"
449 Return true/false on integer compare.
455 Run script from memory
461 Evaluate boolean and math expressions and store the result in an env
463 Also supports loading the value at a memory location into a variable.
464 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
468 menu "Network commands"
471 bool "bootp, tftpboot"
476 bootp - boot image via network using BOOTP/TFTP protocol
477 tftpboot - boot image via network using TFTP protocol
482 TFTP put command, for uploading files to a server
487 Act as a TFTP server and boot the first received file
492 Boot image via network using RARP/TFTP protocol
497 Boot image via network using DHCP/TFTP protocol
503 Boot image via network using NFS protocol.
508 Enable MII utility commands.
513 Send ICMP ECHO_REQUEST to network host
518 Perform CDP network configuration
523 Synchronize RTC via network
528 Lookup the IP of a hostname
530 config CMD_LINK_LOCAL
533 Acquire a network IP address using the link-local protocol
544 Lists AMBA Plug-n-Play information.
546 config SYS_AMBAPP_PRINT_ON_STARTUP
547 bool "Show AMBA PnP info on startup"
548 depends on CMD_AMBAPP
551 Show AMBA Plug-n-Play information on startup.
553 config CMD_BLOCK_CACHE
554 bool "blkcache - control and stats for block cache"
555 depends on BLOCK_CACHE
556 default y if BLOCK_CACHE
558 Enable the blkcache command, which can be used to control the
559 operation of the cache functions.
560 This is most useful when fine-tuning the operation of the cache
561 during development, but also allows the cache to be disabled when
562 it might hurt performance (e.g. when using the ums command).
565 bool "icache or dcache"
567 Enable the "icache" and "dcache" commands
572 Run commands and summarize execution time.
574 # TODO: rename to CMD_SLEEP
579 Delay execution for some time
584 Access the system timer.
587 bool "getdcr, setdcr, getidcr, setidcr"
591 getdcr - Get an AMCC PPC 4xx DCR's value
592 setdcr - Set an AMCC PPC 4xx DCR's value
593 getidcr - Get a register value via indirect DCR addressing
594 setidcr - Set a register value via indirect DCR addressing
600 This provides basic access to the U-Boot's sound support. The main
601 feature is to play a beep.
603 sound init - set up sound system
604 sound play - play a sound
610 This provides access to the QEMU firmware interface. The main
611 feature is to allow easy loading of files passed to qemu-system
612 via -kernel / -initrd
616 bool "Enable the 'bootstage' command"
619 Add a 'bootstage' command which supports printing a report
620 and un/stashing of bootstage data.
622 menu "Power commands"
624 bool "Enable Driver Model PMIC command"
627 This is the pmic command, based on a driver model pmic's API.
628 Command features are unchanged:
629 - list - list pmic devices
630 - pmic dev <id> - show or [set] operating pmic device (NEW)
631 - pmic dump - dump registers
632 - pmic read address - read byte of register at address
633 - pmic write address - write byte to register at address
634 The only one change for this command is 'dev' subcommand.
637 bool "Enable Driver Model REGULATOR command"
638 depends on DM_REGULATOR
640 This command is based on driver model regulator's API.
641 User interface features:
642 - list - list regulator devices
643 - regulator dev <id> - show or [set] operating regulator device
644 - regulator info - print constraints info
645 - regulator status - print operating status
646 - regulator value <val] <-f> - print/[set] voltage value [uV]
647 - regulator current <val> - print/[set] current value [uA]
648 - regulator mode <id> - print/[set] operating mode id
649 - regulator enable - enable the regulator output
650 - regulator disable - disable the regulator output
652 The '-f' (force) option can be used for set the value which exceeds
653 the limits, which are found in device-tree and are kept in regulator's
654 uclass platdata structure.
658 menu "Security commands"
660 bool "Enable the 'tpm' command"
663 This provides a means to talk to a TPM from the command line. A wide
664 range of commands if provided - see 'tpm help' for details. The
665 command requires a suitable TPM on your board and the correct driver
669 bool "Enable the 'tpm test' command"
672 This provides a a series of tests to confirm that the TPM is working
673 correctly. The tests cover initialisation, non-volatile RAM, extend,
674 global lock and checking that timing is within expectations. The
675 tests pass correctly on Infineon TPMs but may need to be adjusted
680 menu "Firmware commands"
682 bool "Enable crosec command"
686 Enable command-line access to the Chrome OS EC (Embedded
687 Controller). This provides the 'crosec' command which has
688 a number of sub-commands for performing EC tasks such as
689 updating its flash, accessing a small saved context area
690 and talking to the I2C bus behind the EC (if there is one).
693 menu "Filesystem commands"
695 bool "ext2 command support"
697 Enables EXT2 FS command
700 bool "ext4 command support"
702 Enables EXT4 FS command
704 config CMD_EXT4_WRITE
706 bool "ext4 write command support"
708 Enables EXT4 FS write command
711 bool "FAT command support"
713 Support for the FAT fs
715 config CMD_FS_GENERIC
716 bool "filesystem commands"
718 Enables filesystem commands (e.g. load, ls) that work for multiple
723 tristate "Enable UBI - Unsorted block images commands"
727 UBI is a software layer above MTD layer which admits use of LVM-like
728 logical volumes on top of MTD devices, hides some complexities of
729 flash chips like wear and bad blocks and provides some other useful
730 capabilities. Please, consult the MTD web site for more details
731 (www.linux-mtd.infradead.org). Activate this option if you want
732 to use U-Boot UBI commands.