This string is displayed in the command line to the left of the
cursor.
+config SYS_XTRACE
+ string "Command execution tracer"
+ depends on CMDLINE
+ default y if CMDLINE
+ help
+ This option enables the possiblity to print all commands before
+ executing them and after all variables are evaluated (similar
+ to Bash's xtrace/'set -x' feature).
+ To enable the tracer a variable "xtrace" needs to be defined in
+ the environment.
+
menu "Autoboot options"
config AUTOBOOT
config AUTOBOOT_ENCRYPTION
bool "Enable encryption in autoboot stopping"
depends on AUTOBOOT_KEYED
- default n
+ help
+ This option allows a string to be entered into U-Boot to stop the
+ autoboot. The string itself is hashed and compared against the hash
+ in the environment variable 'bootstopkeysha256'. If it matches then
+ boot stops and a command-line prompt is presented.
+
+ This provides a way to ship a secure production device which can also
+ be accessed at the U-Boot command line.
config AUTOBOOT_DELAY_STR
string "Delay autobooting via specific input key / string"
string / password matches a values that is encypted via
a SHA256 hash and saved in the environment.
+config AUTOBOOT_USE_MENUKEY
+ bool "Allow a specify key to run a menu from the environment"
+ depends on !AUTOBOOT_KEYED
+ help
+ If a specific key is pressed to stop autoboot, then the commands in
+ the environment variable 'menucmd' are executed before boot starts.
+
+config AUTOBOOT_MENUKEY
+ int "ASCII value of boot key to show a menu"
+ default 0
+ depends on AUTOBOOT_USE_MENUKEY
+ help
+ If this key is pressed to stop autoboot, then the commands in the
+ environment variable 'menucmd' will be executed before boot starts.
+ For example, 33 means "!" in ASCII, so pressing ! at boot would take
+ this action.
+
+config AUTOBOOT_MENU_SHOW
+ bool "Show a menu on boot"
+ help
+ This enables the boot menu, controlled by environment variables
+ defined by the board. The menu starts after running the 'preboot'
+ environmnent variable (if enabled) and before handling the boot delay.
+ See README.bootmenu for more details.
+
endmenu
config BUILD_BIN2C
config CMD_BOOTI
bool "booti"
- depends on ARM64
+ depends on ARM64 || RISCV
default y
help
Boot an AArch64 Linux Kernel image from memory.
config CMD_BOOTEFI_HELLO_COMPILE
bool "Compile a standard EFI hello world binary for testing"
- depends on CMD_BOOTEFI && (ARM || X86 || RISCV)
+ depends on CMD_BOOTEFI && !CPU_V7M && !SANDBOX
default y
help
This compiles a standard EFI hello world application with U-Boot so
help
Extract a part of a multi-image.
-config CMD_POWEROFF
- bool "poweroff"
- help
- Poweroff/Shutdown the system
-
config CMD_SPL
bool "spl export - Export boot information for Falcon boot"
depends on SPL
command.
config CMD_SPL_NAND_OFS
- hex "Offset of OS command line args for Falcon-mode NAND boot"
- depends on CMD_SPL
+ hex "Offset of OS args or dtb for Falcon-mode NAND boot"
+ depends on CMD_SPL && (TPL_NAND_SUPPORT || SPL_NAND_SUPPORT)
default 0
help
This provides the offset of the command line arguments for Linux
for full information about how to use this option (and also see
board/gateworks/gw_ventana/README for an example).
+config CMD_SPL_NOR_OFS
+ hex "Offset of OS args or dtb for Falcon-mode NOR boot"
+ depends on CMD_SPL && SPL_NOR_SUPPORT
+ default 0
+ help
+ This provides the offset of the command line arguments or dtb for
+ Linux when booting from NOR in Falcon mode.
+
config CMD_SPL_WRITE_SIZE
hex "Size of argument area"
depends on CMD_SPL
Save all environment variables into the compiled-in persistent
storage.
+config CMD_ERASEENV
+ bool "eraseenv"
+ default n
+ depends on CMD_SAVEENV
+ help
+ Erase environment variables from the compiled-in persistent
+ storage.
+
config CMD_ENV_EXISTS
bool "env exists"
default y
be deleted. This command shows the variables that have special
flags.
+config CMD_NVEDIT_EFI
+ bool "env [set|print] -e - set/print UEFI variables"
+ depends on EFI_LOADER
+ default y
+ imply HEXDUMP
+ help
+ UEFI variables are encoded as some form of U-Boot variables.
+ If enabled, we are allowed to set/print UEFI variables using
+ "env" command with "-e" option without knowing details.
+
+config CMD_NVEDIT_INFO
+ bool "env info - print or evaluate environment information"
+ help
+ Print environment information:
+ - env_valid : is environment valid
+ - env_ready : is environment imported into hash table
+ - env_use_default : is default environment used
+
+ This command can be optionally used for evaluation in scripts:
+ [-d] : evaluate whether default environment is used
+ [-p] : evaluate whether environment can be persisted
+ The result of multiple evaluations will be combined with AND.
+
endmenu
menu "Memory commands"
base - print or set address offset
loop - initialize loop on address range
+config MX_CYCLIC
+ bool "Enable cyclic md/mw commands"
+ depends on CMD_MEMORY
+ help
+ Add the "mdc" and "mwc" memory commands. These are cyclic
+ "md/mw" commands.
+ Examples:
+
+ => mdc.b 10 4 500
+ This command will print 4 bytes (10,11,12,13) each 500 ms.
+
+ => mwc.l 100 12345678 10
+ This command will write 12345678 to address 100 all 10 ms.
+
+config CMD_RANDOM
+ bool "random"
+ default y
+ depends on CMD_MEMORY && (LIB_RAND || LIB_HW_RAND)
+ help
+ random - fill memory with random data
+
config CMD_MEMTEST
bool "memtest"
help
Shows ADC device info and permit printing one-shot analog converted
data from a named Analog to Digital Converter.
+config CMD_BCB
+ bool "bcb"
+ depends on MMC
+ depends on PARTITIONS
+ help
+ Read/modify/write the fields of Bootloader Control Block, usually
+ stored on the flash "misc" partition with its structure defined in:
+ https://android.googlesource.com/platform/bootable/recovery/+/master/
+ bootloader_message/include/bootloader_message/bootloader_message.h
+
+ Some real-life use-cases include (but are not limited to):
+ - Determine the "boot reason" (and act accordingly):
+ https://source.android.com/devices/bootloader/boot-reason
+ - Get/pass a list of commands from/to recovery:
+ https://android.googlesource.com/platform/bootable/recovery
+ - Inspect/dump the contents of the BCB fields
+
config CMD_BIND
bool "bind/unbind - Bind or unbind a device to/from a driver"
depends on DM
Android devices. Fastboot requires either the network stack
enabled or support for acting as a USB device.
- See doc/README.android-fastboot for more information.
+ See doc/android/fastboot.txt for more information.
config CMD_FDC
bool "fdcboot - Boot from floppy device"
help
I2C support.
+config CMD_W1
+ depends on W1
+ default y if W1
+ bool "w1 - Support for Dallas 1-Wire protocol"
+ help
+ Dallas 1-wire protocol support
+
config CMD_LOADB
bool "loadb"
default y
Enable support for the "mmc swrite" command to write Android sparse
images to eMMC.
+config CMD_MTD
+ bool "mtd"
+ select MTD_PARTITIONS
+ help
+ MTD commands support.
+
config CMD_NAND
bool "nand"
default y if NAND_SUNXI
help
NVM Express device support
-config CMD_MMC_SPI
- bool "mmc_spi - Set up MMC SPI device"
- help
- Provides a way to set up an MMC (Multimedia Card) SPI (Serial
- Peripheral Interface) device. The device provides a means of
- accessing an MMC device via SPI using a single data line, limited
- to 20MHz. It is useful since it reduces the amount of protocol code
- required.
-
config CMD_ONENAND
bool "onenand - access to onenand device"
help
and erasing blocks. It allso provides a way to show and change
bad blocks, and test the device.
+config CMD_OSD
+ bool "osd"
+ help
+ Enable the 'osd' command which allows to query information from and
+ write text data to a on-screen display (OSD) device; a virtual device
+ associated with a display capable of displaying a text overlay on the
+ display it's associated with..
+
config CMD_PART
bool "part"
select HAVE_BLOCK_DEVICE
peripherals. Sub-commands allow bus enumeration, displaying and
changing configuration space and a few other features.
-config CMD_PCMCIA
- bool "pinit - Set up PCMCIA device"
+config CMD_PINMUX
+ bool "pinmux - show pins muxing"
+ default y if PINCTRL
help
- Provides a means to initialise a PCMCIA (Personal Computer Memory
- Card International Association) device. This is an old standard from
- about 1990. These devices are typically removable memory or network
- cards using a standard 68-pin connector.
+ Parse all available pin-controllers and show pins muxing. This
+ is useful for debug purpoer to check the pin muxing and to know if
+ a pin is configured as a GPIO or as an alternate function.
+
+config CMD_POWEROFF
+ bool "poweroff"
+ help
+ Poweroff/Shutdown the system
config CMD_READ
bool "read - Read binary data from a partition"
config CMD_SF
bool "sf"
+ depends on DM_SPI_FLASH || SPI_FLASH
help
SPI Flash support
config CMD_SF_TEST
bool "sf test - Allow testing of SPI flash"
+ depends on CMD_SF
help
Provides a way to test that SPI flash is working correctly. The
test is destructive, in that an area of SPI flash must be provided
everything is working properly.
config CMD_SPI
- bool "sspi"
+ bool "sspi - Command to access spi device"
+ depends on SPI
help
SPI utility command.
+config DEFAULT_SPI_BUS
+ int "default spi bus used by sspi command"
+ depends on CMD_SPI
+ default 0
+
+config DEFAULT_SPI_MODE
+ hex "default spi mode used by sspi command (see include/spi.h)"
+ depends on CMD_SPI
+ default 0
+
config CMD_TSI148
bool "tsi148 - Command to access tsi148 device"
help
help
USB mass storage support
+config CMD_VIRTIO
+ bool "virtio"
+ depends on VIRTIO
+ default y if VIRTIO
+ help
+ VirtIO block device support
+
+config CMD_WDT
+ bool "wdt"
+ depends on WDT
+ help
+ This provides commands to control the watchdog timer devices.
+
config CMD_AXI
bool "axi"
depends on AXI
endmenu
+menu "Android support commands"
+
+config CMD_AB_SELECT
+ bool "ab_select"
+ default n
+ depends on ANDROID_AB
+ help
+ On Android devices with more than one boot slot (multiple copies of
+ the kernel and system images) this provides a command to select which
+ slot should be used to boot from and register the boot attempt. This
+ is used by the new A/B update model where one slot is updated in the
+ background while running from the other slot.
+
+endmenu
+
if NET
menuconfig CMD_NET
bool "Request & store 'ntpserverip' from BOOTP/DHCP server"
depends on CMD_BOOTP
+config CMD_PCAP
+ bool "pcap capture"
+ help
+ Selecting this will allow capturing all Ethernet packets and store
+ them in physical memory in a PCAP formated file,
+ later to be analyzed by PCAP reader application (IE. WireShark).
+
config BOOTP_PXE
bool "Send PXE client arch to BOOTP/DHCP server"
default y
help
Enable the "icache" and "dcache" commands
-config CMD_DISPLAY
- bool "Enable the 'display' command, for character displays"
+config CMD_CONITRACE
+ bool "conitrace - trace console input codes"
+ help
+ Enable the 'conitrace' command which displays the codes received
+ from the console input as hexadecimal numbers.
+
+config CMD_CLS
+ bool "Enable clear screen command 'cls'"
+ depends on CFB_CONSOLE || DM_VIDEO || LCD || VIDEO
+ default y if LCD
+ help
+ Enable the 'cls' command which clears the screen contents
+ on video frame buffer.
+
+config CMD_EFIDEBUG
+ bool "efidebug - display/configure UEFI environment"
+ depends on EFI_LOADER
+ select EFI_DEVICE_PATH_TO_TEXT
+ default n
help
- (this needs porting to driver model)
- This enables the 'display' command which allows a string to be
- displayed on a simple board-specific display. Implement
- display_putc() to use it.
+ Enable the 'efidebug' command which provides a subset of UEFI
+ shell utility with simplified functionality. It will be useful
+ particularly for managing boot parameters as well as examining
+ various EFI status for debugging.
+
+config CMD_EXCEPTION
+ bool "exception - raise exception"
+ depends on ARM || RISCV || X86
+ help
+ Enable the 'exception' command which allows to raise an exception.
config CMD_LED
bool "led"
+ depends on LED
default y if LED
help
Enable the 'led' command which allows for control of LEDs supported
bool "MTD partition support"
select MTD_DEVICE if (CMD_NAND || NAND)
help
- MTD partition support
+ MTD partitioning tool support.
+ It is strongly encouraged to avoid using this command
+ anymore along with 'sf', 'nand', 'onenand'. One can still
+ declare the partitions in the mtdparts environment variable
+ but better use the MTD stack and the 'mtd' command instead.
config MTDIDS_DEFAULT
string "Default MTD IDs"
- depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH
+ depends on MTD_PARTITIONS || CMD_MTDPARTS || CMD_NAND || CMD_FLASH
help
Defines a default MTD IDs list for use with MTD partitions in the
Linux MTD command line partitions format.
config MTDPARTS_DEFAULT
string "Default MTD partition scheme"
- depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH
+ depends on MTD_PARTITIONS || CMD_MTDPARTS || CMD_NAND || CMD_FLASH
help
Defines a default MTD partitioning scheme in the Linux MTD command
line partitions format
config CMD_KGDB
bool "kgdb - Allow debugging of U-Boot with gdb"
+ depends on PPC
help
This enables a 'kgdb' command which allows gdb to connect to U-Boot
over a serial link for debugging purposes. This allows
Enables a command to control using of function tracing within
U-Boot. This allows recording of call traces including timing
information. The command can write data to memory for exporting
- for analsys (e.g. using bootchart). See doc/README.trace for full
+ for analysis (e.g. using bootchart). See doc/README.trace for full
details.
config CMD_AVB
config CMD_UBI
tristate "Enable UBI - Unsorted block images commands"
- select CMD_MTDPARTS
- select CRC32
select MTD_UBI
help
UBI is a software layer above MTD layer which admits use of LVM-like
capabilities. Please, consult the MTD web site for more details
(www.linux-mtd.infradead.org). Activate this option if you want
to use U-Boot UBI commands.
+ It is also strongly encouraged to also enable CONFIG_MTD to get full
+ partition support.
config CMD_UBIFS
tristate "Enable UBIFS - Unsorted block images filesystem commands"
depends on CMD_UBI
default y if CMD_UBI
- select CRC32
select LZO
help
UBIFS is a file system for flash devices which works on top of UBI.
projects / oweals / u-boot.git / blobdiff