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_COMPILE
185 bool "Compile a standard EFI hello world binary for testing"
186 depends on CMD_BOOTEFI && (ARM || X86)
189 This compiles a standard EFI hello world application with U-Boot so
190 that it can be used with the test/py testing framework. This is useful
191 for testing that EFI is working at a basic level, and for bringing
192 up EFI support on a new architecture.
194 No additional space will be required in the resulting U-Boot binary
195 when this option is enabled.
197 config CMD_BOOTEFI_HELLO
198 bool "Allow booting a standard EFI hello world for testing"
199 depends on CMD_BOOTEFI_HELLO_COMPILE
201 This adds a standard EFI hello world application to U-Boot so that
202 it can be used with the 'bootefi hello' command. This is useful
203 for testing that EFI is working at a basic level, and for bringing
204 up EFI support on a new architecture.
210 Add an ANSI terminal boot menu command.
213 bool "bootelf, bootvx"
216 Boot an ELF/vxWorks image from the memory.
219 bool "Flattened Device Tree utility commands"
223 Do FDT related setup before booting into the Operating System.
229 Start an application at a given address.
235 Run the command in the given environment variable.
241 Print header information for application image.
247 List all images found in flash
253 Extract a part of a multi-image.
260 menu "Environment commands"
263 bool "ask for env variable"
265 Ask for environment variable
283 Edit environment variable.
288 Allow for searching environment variables
294 Save all environment variables into the compiled-in persistent
297 config CMD_ENV_EXISTS
301 Check if a variable is defined in the environment for use in
306 menu "Memory commands"
309 bool "md, mm, nm, mw, cp, cmp, base, loop"
314 mm - memory modify (auto-incrementing address)
315 nm - memory modify (constant address)
316 mw - memory write (fill)
319 base - print or set address offset
320 loop - initialize loop on address range
331 Infinite write loop on address range
336 Simple RAM read/write test.
341 mdc - memory display cyclic
342 mwc - memory write cyclic
347 Display memory information.
351 menu "Device access commands"
354 bool "dm - Access to driver model information"
358 Provides access to driver model data structures and information,
359 such as a list of devices, list of uclasses and the state of each
360 device (e.g. activated). This is not required for operation, but
361 can be useful to see the state of driver model for debugging or
365 bool "demo - Demonstration commands for driver model"
368 Provides a 'demo' command which can be used to play around with
369 driver model. To use this properly you will need to enable one or
370 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
371 Otherwise you will always get an empty list of devices. The demo
372 devices are defined in the sandbox device tree, so the easiest
373 option is to use sandbox and pass the -d point to sandbox's
380 Load a binary file over serial line.
386 Load an S-Record file over serial line
389 bool "flinfo, erase, protect"
393 flinfo - print FLASH memory information
395 protect - enable or disable FLASH write protection
398 bool "GPT (GUID Partition Table) command"
399 select PARTITION_UUIDS
402 Enable the 'gpt' command to ready and write GPT style partition
406 #depends on FLASH_CFI_DRIVER
409 ARM Ltd reference designs flash partition access
414 MMC memory mapped support.
423 select PARTITION_UUIDS
425 Read and display information about the partition table on
450 select USB_FUNCTION_DFU
452 Enables the command "dfu" which is used to have U-Boot create a DFU
453 class device via USB.
455 config CMD_USB_MASS_STORAGE
456 bool "UMS usb mass storage"
458 USB mass storage support
466 config CMD_REMOTEPROC
468 depends on REMOTEPROC
470 Support for Remote Processor control
480 menu "Shell scripting commands"
492 Return true/false on integer compare.
498 Run script from memory
504 Evaluate boolean and math expressions and store the result in an env
506 Also supports loading the value at a memory location into a variable.
507 If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
511 menu "Network commands"
514 bool "bootp, tftpboot"
519 bootp - boot image via network using BOOTP/TFTP protocol
520 tftpboot - boot image via network using TFTP protocol
525 TFTP put command, for uploading files to a server
530 Act as a TFTP server and boot the first received file
535 Boot image via network using RARP/TFTP protocol
540 Boot image via network using DHCP/TFTP protocol
546 Boot image via network using PXE protocol
552 Boot image via network using NFS protocol.
557 Enable MII utility commands.
562 Send ICMP ECHO_REQUEST to network host
567 Perform CDP network configuration
572 Synchronize RTC via network
577 Lookup the IP of a hostname
579 config CMD_LINK_LOCAL
582 Acquire a network IP address using the link-local protocol
593 Lists AMBA Plug-n-Play information.
595 config SYS_AMBAPP_PRINT_ON_STARTUP
596 bool "Show AMBA PnP info on startup"
597 depends on CMD_AMBAPP
600 Show AMBA Plug-n-Play information on startup.
602 config CMD_BKOPS_ENABLE
603 bool "mmc bkops enable"
607 Enable command for setting manual background operations handshake
608 on a eMMC device. The feature is optionally available on eMMC devices
609 conforming to standard >= 4.41.
611 config CMD_BLOCK_CACHE
612 bool "blkcache - control and stats for block cache"
613 depends on BLOCK_CACHE
614 default y if BLOCK_CACHE
616 Enable the blkcache command, which can be used to control the
617 operation of the cache functions.
618 This is most useful when fine-tuning the operation of the cache
619 during development, but also allows the cache to be disabled when
620 it might hurt performance (e.g. when using the ums command).
623 bool "icache or dcache"
625 Enable the "icache" and "dcache" commands
630 Run commands and summarize execution time.
632 # TODO: rename to CMD_SLEEP
637 Delay execution for some time
642 Access the system timer.
645 bool "getdcr, setdcr, getidcr, setidcr"
649 getdcr - Get an AMCC PPC 4xx DCR's value
650 setdcr - Set an AMCC PPC 4xx DCR's value
651 getidcr - Get a register value via indirect DCR addressing
652 setidcr - Set a register value via indirect DCR addressing
658 This provides basic access to the U-Boot's sound support. The main
659 feature is to play a beep.
661 sound init - set up sound system
662 sound play - play a sound
668 This provides access to the QEMU firmware interface. The main
669 feature is to allow easy loading of files passed to qemu-system
670 via -kernel / -initrd
672 source "cmd/mvebu/Kconfig"
677 bool "Enable the 'bootstage' command"
680 Add a 'bootstage' command which supports printing a report
681 and un/stashing of bootstage data.
683 menu "Power commands"
685 bool "Enable Driver Model PMIC command"
688 This is the pmic command, based on a driver model pmic's API.
689 Command features are unchanged:
690 - list - list pmic devices
691 - pmic dev <id> - show or [set] operating pmic device (NEW)
692 - pmic dump - dump registers
693 - pmic read address - read byte of register at address
694 - pmic write address - write byte to register at address
695 The only one change for this command is 'dev' subcommand.
698 bool "Enable Driver Model REGULATOR command"
699 depends on DM_REGULATOR
701 This command is based on driver model regulator's API.
702 User interface features:
703 - list - list regulator devices
704 - regulator dev <id> - show or [set] operating regulator device
705 - regulator info - print constraints info
706 - regulator status - print operating status
707 - regulator value <val] <-f> - print/[set] voltage value [uV]
708 - regulator current <val> - print/[set] current value [uA]
709 - regulator mode <id> - print/[set] operating mode id
710 - regulator enable - enable the regulator output
711 - regulator disable - disable the regulator output
713 The '-f' (force) option can be used for set the value which exceeds
714 the limits, which are found in device-tree and are kept in regulator's
715 uclass platdata structure.
719 menu "Security commands"
721 bool "Enable the 'tpm' command"
724 This provides a means to talk to a TPM from the command line. A wide
725 range of commands if provided - see 'tpm help' for details. The
726 command requires a suitable TPM on your board and the correct driver
730 bool "Enable the 'tpm test' command"
733 This provides a a series of tests to confirm that the TPM is working
734 correctly. The tests cover initialisation, non-volatile RAM, extend,
735 global lock and checking that timing is within expectations. The
736 tests pass correctly on Infineon TPMs but may need to be adjusted
741 menu "Firmware commands"
743 bool "Enable crosec command"
747 Enable command-line access to the Chrome OS EC (Embedded
748 Controller). This provides the 'crosec' command which has
749 a number of sub-commands for performing EC tasks such as
750 updating its flash, accessing a small saved context area
751 and talking to the I2C bus behind the EC (if there is one).
754 menu "Filesystem commands"
756 bool "ext2 command support"
758 Enables EXT2 FS command
761 bool "ext4 command support"
763 Enables EXT4 FS command
765 config CMD_EXT4_WRITE
767 bool "ext4 write command support"
769 Enables EXT4 FS write command
772 bool "FAT command support"
774 Support for the FAT fs
776 config CMD_FS_GENERIC
777 bool "filesystem commands"
779 Enables filesystem commands (e.g. load, ls) that work for multiple
784 tristate "Enable UBI - Unsorted block images commands"
788 UBI is a software layer above MTD layer which admits use of LVM-like
789 logical volumes on top of MTD devices, hides some complexities of
790 flash chips like wear and bad blocks and provides some other useful
791 capabilities. Please, consult the MTD web site for more details
792 (www.linux-mtd.infradead.org). Activate this option if you want
793 to use U-Boot UBI commands.