when no character is read on the console interface
within "Boot Delay" after reset.
- CONFIG_BOOTARGS
- This can be used to pass arguments to the bootm
- command. The value of CONFIG_BOOTARGS goes into the
- environment value "bootargs".
-
CONFIG_RAMBOOT and CONFIG_NFSBOOT
The value of these goes into the environment as
"ramboot" and "nfsboot" respectively, and can be used
Select one of the baudrates listed in
CONFIG_SYS_BAUDRATE_TABLE, see below.
-- Monitor Functions:
- Monitor commands can be included or excluded
- from the build by using the #include files
- <config_cmd_all.h> and #undef'ing unwanted
- commands, or adding #define's for wanted commands.
-
- The default command configuration includes all commands
- except those marked below with a "*".
-
- CONFIG_CMD_AES AES 128 CBC encrypt/decrypt
- CONFIG_CMD_ASKENV * ask for env variable
- CONFIG_CMD_BDI bdinfo
- CONFIG_CMD_BOOTD bootd
- CONFIG_CMD_BOOTI * ARM64 Linux kernel Image support
- CONFIG_CMD_CACHE * icache, dcache
- CONFIG_CMD_CONSOLE coninfo
- CONFIG_CMD_DHCP * DHCP support
- CONFIG_CMD_DIAG * Diagnostics
- CONFIG_CMD_ECHO echo arguments
- CONFIG_CMD_EDITENV edit env variable
- CONFIG_CMD_ELF * bootelf, bootvx
- CONFIG_CMD_ENV_EXISTS * check existence of env variable
- CONFIG_CMD_EXPORTENV * export the environment
- CONFIG_CMD_EXT2 * ext2 command support
- CONFIG_CMD_EXT4 * ext4 command support
- CONFIG_CMD_FS_GENERIC * filesystem commands (e.g. load, ls)
- that work for multiple fs types
- CONFIG_CMD_FS_UUID * Look up a filesystem UUID
- CONFIG_CMD_SAVEENV saveenv
- CONFIG_CMD_FLASH flinfo, erase, protect
- CONFIG_CMD_FPGA FPGA device initialization support
- CONFIG_CMD_GO * the 'go' command (exec code)
- CONFIG_CMD_GREPENV * search environment
- CONFIG_CMD_I2C * I2C serial bus support
- CONFIG_CMD_IMI iminfo
- CONFIG_CMD_IMLS List all images found in NOR flash
- CONFIG_CMD_IMLS_NAND * List all images found in NAND flash
- CONFIG_CMD_IMPORTENV * import an environment
- CONFIG_CMD_INI * import data from an ini file into the env
- CONFIG_CMD_ITEST Integer/string test of 2 values
- CONFIG_CMD_LDRINFO * ldrinfo (display Blackfin loader)
- CONFIG_CMD_LINK_LOCAL * link-local IP address auto-configuration
- (169.254.*.*)
- CONFIG_CMD_LOADB loadb
- CONFIG_CMD_LOADS loads
- CONFIG_CMD_MD5SUM * print md5 message digest
- (requires CONFIG_CMD_MEMORY and CONFIG_MD5)
- CONFIG_CMD_MEMINFO * Display detailed memory information
- CONFIG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base,
- loop, loopw
- CONFIG_CMD_MEMTEST * mtest
- CONFIG_CMD_MISC Misc functions like sleep etc
- CONFIG_CMD_MMC * MMC memory mapped support
- CONFIG_CMD_MII * MII utility commands
- CONFIG_CMD_NET bootp, tftpboot, rarpboot
- CONFIG_CMD_NFS NFS support
- CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network
- host
- CONFIG_CMD_RUN run command in env variable
- CONFIG_CMD_SF * Read/write/erase SPI NOR flash
- CONFIG_CMD_SOFTSWITCH * Soft switch setting command for BF60x
- CONFIG_CMD_SOURCE "source" command Support
- CONFIG_CMD_SPI * SPI serial bus support
- CONFIG_CMD_TFTPSRV * TFTP transfer in server mode
- CONFIG_CMD_TFTPPUT * TFTP put command (upload)
- CONFIG_CMD_TIME * run command and report execution time (ARM specific)
- CONFIG_CMD_TIMER * access to the system tick timer
- CONFIG_CMD_USB * USB support
- CONFIG_CMD_CDP * Cisco Discover Protocol support
- CONFIG_CMD_XIMG Load part of Multi Image
- CONFIG_CMD_UUID * Generate random UUID or GUID string
-
- EXAMPLE: If you want all functions except of network
- support you can write:
-
- #include "config_cmd_all.h"
- #undef CONFIG_CMD_NET
-
- Other Commands:
- fdt (flattened device tree) command: CONFIG_OF_LIBFDT
-
- Note: Don't enable the "icache" and "dcache" commands
- (configuration option CONFIG_CMD_CACHE) unless you know
- what you (and your U-Boot users) are doing. Data
- cache cannot be enabled on systems like the
- 8xx (where accesses to the IMMR region must be
- uncached), and it cannot be disabled on all other
- systems where we (mis-) use the data cache to hold an
- initial stack and some data.
-
-
- XXX - this list needs to get updated!
-
- Removal of commands
If no commands are needed to boot, you can disable
CONFIG_CMDLINE to remove them. In this case, the command line
Allow generic access to the SPI bus on the Intel 8257x, for
example with the "sspi" command.
- CONFIG_CMD_E1000
- Management command for E1000 devices. When used on devices
- with SPI support you can reprogram the EEPROM from U-Boot.
-
CONFIG_EEPRO100
Support for Intel 82557/82559/82559ER chips.
Optional CONFIG_EEPRO100_SROM_WRITE enables EEPROM
to. Contemporary x86 systems usually map it at
0xfed40000.
- CONFIG_CMD_TPM
- Add tpm monitor functions.
- Requires CONFIG_TPM. If CONFIG_TPM_AUTH_SESSIONS is set, also
- provides monitor access to authorized functions.
-
CONFIG_TPM
Define this to enable the TPM support library which provides
functional interfaces to some TPM commands.
CONFIG_USB_FUNCTION_DFU
This enables the USB portion of the DFU USB class
- CONFIG_CMD_DFU
- This enables the command "dfu" which is used to have
- U-Boot create a DFU class device via USB. This command
- requires that the "dfu_alt_info" environment variable be
- set and define the alt settings to expose to the host.
-
CONFIG_DFU_MMC
This enables support for exposing (e)MMC devices via DFU.
CONFIG_USB_FUNCTION_FASTBOOT
This enables the USB part of the fastboot gadget
- CONFIG_CMD_FASTBOOT
- This enables the command "fastboot" which enables the Android
- fastboot mode for the platform's USB device. Fastboot is a USB
- protocol for downloading images, flashing and device control
- used on Android devices.
- See doc/README.android-fastboot for more information.
-
CONFIG_ANDROID_BOOT_IMAGE
This enables support for booting images which use the Android
image format header.
commands cp, md...
- Serial Flash support
- CONFIG_CMD_SF
-
- Defining this option enables SPI flash commands
- 'sf probe/read/write/erase/update'.
-
- Usage requires an initial 'probe' to define the serial
+ Usage requires an initial 'sf probe' to define the serial
flash parameters, followed by read/write/erase/update
commands.
CONFIG_SF_DEFAULT_MODE (see include/spi.h)
CONFIG_SF_DEFAULT_SPEED in Hz
- CONFIG_CMD_SF_TEST
-
- Define this option to include a destructive SPI flash
- test ('sf test').
-
-- SystemACE Support:
CONFIG_SYSTEMACE
Adding this option adds support for Xilinx SystemACE