help
Print GPL license text
+config CMD_REGINFO
+ bool "reginfo"
+ depends on PPC
+ help
+ Register dump
+
endmenu
menu "Boot commands"
Extract a part of a multi-image.
config CMD_POWEROFF
- bool
+ bool "poweroff"
+ help
+ Poweroff/Shutdown the system
+
+config CMD_SPL
+ bool "spl export - Export boot information for Falcon boot"
+ depends on SPL
+ help
+ Falcon mode allows booting directly from SPL into an Operating
+ System such as Linux, thus skipping U-Boot proper. See
+ doc/README.falcon for full information about how to use this
+ command.
+
+config CMD_SPL_NAND_OFS
+ hex "Offset of OS command line args for Falcon-mode NAND boot"
+ depends on CMD_SPL
+ default 0
+ help
+ This provides the offset of the command line arguments for Linux
+ when booting from NAND in Falcon mode. See doc/README.falcon
+ for full information about how to use this option (and also see
+ board/gateworks/gw_ventana/README for an example).
+
+config CMD_SPL_WRITE_SIZE
+ hex "Size of argument area"
+ depends on CMD_SPL
+ default 0x2000
+ help
+ This provides the size of the command-line argument area in NAND
+ flash used by Falcon-mode boot. See the documentation until CMD_SPL
+ for detail.
+
+config CMD_THOR_DOWNLOAD
+ bool "thor - TIZEN 'thor' download"
+ help
+ Implements the 'thor' download protocol. This is a way of
+ downloading a software update over USB from an attached host.
+ There is no documentation about this within the U-Boot source code
+ but you should be able to find something on the interwebs.
+
+config CMD_ZBOOT
+ bool "zboot - x86 boot command"
+ help
+ With x86 machines it is common to boot a bzImage file which
+ contains both a kernel and a setup.bin file. The latter includes
+ configuration information from the dark ages which x86 boards still
+ need to pick things out of.
+
+ Consider using FIT in preference to this since it supports directly
+ booting both 32- and 64-bit kernels, as well as secure boot.
+ Documentation is available in doc/uImage.FIT/x86-fit-boot.txt
endmenu
menu "Memory commands"
-config CMD_MEMORY
- bool "md, mm, nm, mw, cp, cmp, base, loop"
- default y
- help
- Memory commands.
- md - memory display
- mm - memory modify (auto-incrementing address)
- nm - memory modify (constant address)
- mw - memory write (fill)
- cp - memory copy
- cmp - memory compare
- base - print or set address offset
- loop - initialize loop on address range
-
config CMD_CRC32
bool "crc32"
+ select HASH
default y
help
Compute CRC32.
+config CRC32_VERIFY
+ bool "crc32 -v"
+ depends on CMD_CRC32
+ help
+ Add -v option to verify data against a crc32 checksum.
+
config CMD_EEPROM
bool "eeprom - EEPROM subsystem"
help
Help printed with the LAYOUT VERSIONS part of the 'eeprom'
command's help.
+config LOOPW
+ bool "loopw"
+ help
+ Infinite write loop on address range
+
config CMD_MD5SUM
bool "md5sum"
default n
help
Compute MD5 checksum.
-config MD5SUM_VERFIY
+config MD5SUM_VERIFY
bool "md5sum -v"
default n
depends on CMD_MD5SUM
help
Add -v option to verify data against an MD5 checksum.
-config LOOPW
- bool "loopw"
+config CMD_MEMINFO
+ bool "meminfo"
help
- Infinite write loop on address range
+ Display memory information.
+
+config CMD_MEMORY
+ bool "md, mm, nm, mw, cp, cmp, base, loop"
+ default y
+ help
+ Memory commands.
+ md - memory display
+ mm - memory modify (auto-incrementing address)
+ nm - memory modify (constant address)
+ mw - memory write (fill)
+ cp - memory copy
+ cmp - memory compare
+ base - print or set address offset
+ loop - initialize loop on address range
config CMD_MEMTEST
bool "memtest"
mdc - memory display cyclic
mwc - memory write cyclic
-config CMD_MEMINFO
- bool "meminfo"
+config CMD_SHA1SUM
+ bool "sha1sum"
+ select SHA1
help
- Display memory information.
+ Compute SHA1 checksum.
+
+config SHA1SUM_VERIFY
+ bool "sha1sum -v"
+ depends on CMD_SHA1SUM
+ help
+ Add -v option to verify data against a SHA1 checksum.
+
+config CMD_STRINGS
+ bool "strings - display strings in memory"
+ help
+ This works similarly to the Unix 'strings' command except that it
+ works with a memory range. String of printable characters found
+ within the range are displayed. The minimum number of characters
+ for a sequence to be considered a string can be provided.
+
+endmenu
+
+menu "Compression commands"
+
+config CMD_LZMADEC
+ bool "lzmadec"
+ select LZMA
+ help
+ Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm)
+ image from memory.
config CMD_UNZIP
bool "unzip"
menu "Device access commands"
+config CMD_ARMFLASH
+ #depends on FLASH_CFI_DRIVER
+ bool "armflash"
+ help
+ ARM Ltd reference designs flash partition access
+
config CMD_CLK
bool "clk - Show clock frequencies"
help
clock values from associated drivers. However currently no command
exists for this.
-config CMD_DM
- bool "dm - Access to driver model information"
- depends on DM
- default y
- help
- Provides access to driver model data structures and information,
- such as a list of devices, list of uclasses and the state of each
- device (e.g. activated). This is not required for operation, but
- can be useful to see the state of driver model for debugging or
- interest.
-
config CMD_DEMO
bool "demo - Demonstration commands for driver model"
depends on DM
option is to use sandbox and pass the -d point to sandbox's
u-boot.dtb file.
-config CMD_LOADB
- bool "loadb"
- default y
+config CMD_DFU
+ bool "dfu"
+ select USB_FUNCTION_DFU
help
- Load a binary file over serial line.
+ 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 CMD_LOADS
- bool "loads"
+config CMD_DM
+ bool "dm - Access to driver model information"
+ depends on DM
default y
help
- Load an S-Record file over serial line
+ Provides access to driver model data structures and information,
+ such as a list of devices, list of uclasses and the state of each
+ device (e.g. activated). This is not required for operation, but
+ can be useful to see the state of driver model for debugging or
+ interest.
+
+config CMD_FDC
+ bool "fdcboot - Boot from floppy device"
+ help
+ The 'fdtboot' command allows booting an image from a floppy disk.
config CMD_FLASH
bool "flinfo, erase, protect"
erase - FLASH memory
protect - enable or disable FLASH write protection
+config CMD_FPGA
+ bool "fpga"
+ default y
+ help
+ FPGA support.
+
+config CMD_FPGA_LOADBP
+ bool "fpga loadbp - load partial bitstream (Xilinx only)"
+ depends on CMD_FPGA
+ help
+ Supports loading an FPGA device from a bitstream buffer containing
+ a partial bitstream.
+
+config CMD_FPGA_LOADFS
+ bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
+ depends on CMD_FPGA
+ help
+ Supports loading an FPGA device from a FAT filesystem.
+
+config CMD_FPGA_LOADMK
+ bool "fpga loadmk - load bitstream from image"
+ depends on CMD_FPGA
+ help
+ Supports loading an FPGA device from a image generated by mkimage.
+
+config CMD_FPGA_LOADP
+ bool "fpga loadp - load partial bitstream"
+ depends on CMD_FPGA
+ help
+ Supports loading an FPGA device from a bitstream buffer containing
+ a partial bitstream.
+
+config CMD_FPGAD
+ bool "fpgad - dump FPGA registers"
+ help
+ (legacy, needs conversion to driver model)
+ Provides a way to dump FPGA registers by calling the board-specific
+ fpga_get_reg() function. This functions similarly to the 'md'
+ command.
+
+config CMD_FUSE
+ bool "fuse - support for the fuse subssystem"
+ help
+ (deprecated - needs conversion to driver model)
+ This allows reading, sensing, programming or overriding fuses
+ which control the behaviour of the device. The command uses the
+ fuse_...() API.
+
+config CMD_GPIO
+ bool "gpio"
+ help
+ GPIO support.
+
config CMD_GPT
bool "GPT (GUID Partition Table) command"
select PARTITION_UUIDS
Enable the 'gpt' command to ready and write GPT style partition
tables.
-config CMD_ARMFLASH
- #depends on FLASH_CFI_DRIVER
- bool "armflash"
+config CMD_GPT_RENAME
+ bool "GPT partition renaming commands"
+ depends on CMD_GPT
help
- ARM Ltd reference designs flash partition access
+ Enables the 'gpt' command to interchange names on two GPT
+ partitions via the 'gpt swap' command or to rename single
+ partitions via the 'rename' command.
+
+config CMD_IDE
+ bool "ide - Support for IDE drivers"
+ select IDE
+ help
+ Provides an 'ide' command which allows accessing the IDE drive,
+ reseting the IDE interface, printing the partition table and
+ geting device info. It also enables the 'diskboot' command which
+ permits booting from an IDE drive.
+
+config CMD_IO
+ bool "io - Support for performing I/O accesses"
+ help
+ Provides an 'iod' command to display I/O space and an 'iow' command
+ to write values to the I/O space. This can be useful for manually
+ checking the state of devices during boot when debugging device
+ drivers, etc.
+
+config CMD_IOTRACE
+ bool "iotrace - Support for tracing I/O activity"
+ help
+ Provides an 'iotrace' command which supports recording I/O reads and
+ writes in a trace buffer in memory . It also maintains a checksum
+ of the trace records (even if space is exhausted) so that the
+ sequence of I/O accesses can be verified.
+
+ When debugging drivers it is useful to see what I/O accesses were
+ done and in what order.
+
+ Even if the individual accesses are of little interest it can be
+ useful to verify that the access pattern is consistent each time
+ an operation is performed. In this case a checksum can be used to
+ characterise the operation of a driver. The checksum can be compared
+ across different runs of the operation to verify that the driver is
+ working properly.
+
+ In particular, when performing major refactoring of the driver, where
+ the access pattern should not change, the checksum provides assurance
+ that the refactoring work has not broken the driver.
+
+ This works by sneaking into the io.h heder for an architecture and
+ redirecting I/O accesses through iotrace's tracing mechanism.
+
+ For now no commands are provided to examine the trace buffer. The
+ format is fairly simple, so 'md' is a reasonable substitute.
+
+ Note: The checksum feature is only useful for I/O regions where the
+ contents do not change outside of software control. Where this is not
+ suitable you can fall back to manually comparing the addresses. It
+ might be useful to enhance tracing to only checksum the accesses and
+ not the data read/written.
+
+config CMD_I2C
+ bool "i2c"
+ help
+ I2C support.
+
+config CMD_LOADB
+ bool "loadb"
+ default y
+ help
+ Load a binary file over serial line.
+
+config CMD_LOADS
+ bool "loads"
+ default y
+ help
+ Load an S-Record file over serial line
config CMD_MMC
bool "mmc"
endif # CMD_NAND
+config CMD_NVME
+ bool "nvme"
+ depends on NVME
+ default y if NVME
+ 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
+ OneNAND is a brand of NAND ('Not AND' gate) flash which provides
+ various useful features. This command allows reading, writing,
+ and erasing blocks. It allso provides a way to show and change
+ bad blocks, and test the device.
+
config CMD_PART
bool "part"
select PARTITION_UUIDS
Read and display information about the partition table on
various media.
-config CMD_SF
- bool "sf"
+config CMD_PCI
+ bool "pci - Access PCI devices"
help
- SPI Flash support
+ Provide access to PCI (Peripheral Interconnect Bus), a type of bus
+ used on some devices to allow the CPU to communicate with its
+ peripherals. Sub-commands allow bus enumeration, displaying and
+ changing configuration space and a few other features.
-config CMD_SPI
- bool "sspi"
+config CMD_PCMCIA
+ bool "pinit - Set up PCMCIA device"
help
- SPI utility command.
+ 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.
-config CMD_I2C
- bool "i2c"
+config CMD_READ
+ bool "read - Read binary data from a partition"
help
- I2C support.
+ Provides low-level access to the data in a partition.
-config CMD_USB
- bool "usb"
+config CMD_REMOTEPROC
+ bool "remoteproc"
+ depends on REMOTEPROC
help
- USB support.
+ Support for Remote Processor control
-config CMD_DFU
- bool "dfu"
- select USB_FUNCTION_DFU
+config CMD_SATA
+ bool "sata - Access SATA subsystem"
+ select SATA
help
- Enables the command "dfu" which is used to have U-Boot create a DFU
- class device via USB.
+ SATA (Serial Advanced Technology Attachment) is a serial bus
+ standard for connecting to hard drives and other storage devices.
+ This command provides information about attached devices and allows
+ reading, writing and other operations.
-config CMD_USB_MASS_STORAGE
- bool "UMS usb mass storage"
+ SATA replaces PATA (originally just ATA), which stands for Parallel AT
+ Attachment, where AT refers to an IBM AT (Advanced Technology)
+ computer released in 1984.
+
+config CMD_SAVES
+ bool "saves - Save a file over serial in S-Record format"
help
- USB mass storage support
+ Provides a way to save a binary file using the Motorola S-Record
+ format over the serial line.
-config CMD_FPGA
- bool "fpga"
- default y
+config CMD_SDRAM
+ bool "sdram - Print SDRAM configuration information"
help
- FPGA support.
+ Provides information about attached SDRAM. This assumed that the
+ SDRAM has an EEPROM with information that can be read using the
+ I2C bus. This is only available on some boards.
-config CMD_FPGA_LOADBP
- bool "fpga loadbp - load partial bitstream (Xilinx only)"
- depends on CMD_FPGA
+config CMD_SF
+ bool "sf"
help
- Supports loading an FPGA device from a bitstream buffer containing
- a partial bitstream.
+ SPI Flash support
-config CMD_FPGA_LOADFS
- bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
- depends on CMD_FPGA
+config CMD_SF_TEST
+ bool "sf test - Allow testing of SPI flash"
help
- Supports loading an FPGA device from a FAT filesystem.
+ 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
+ for the test to use. Performance information is also provided,
+ measuring the performance of reading, writing and erasing in
+ Mbps (Million Bits Per Second). This value should approximately
+ equal the SPI bus speed for a single-bit-wide SPI bus, assuming
+ everything is working properly.
-config CMD_FPGA_LOADMK
- bool "fpga loadmk - load bitstream from image"
- depends on CMD_FPGA
+config CMD_SPI
+ bool "sspi"
help
- Supports loading an FPGA device from a image generated by mkimage.
+ SPI utility command.
-config CMD_FPGA_LOADP
- bool "fpga loadp - load partial bitstream"
- depends on CMD_FPGA
+config CMD_TSI148
+ bool "tsi148 - Command to access tsi148 device"
help
- Supports loading an FPGA device from a bitstream buffer containing
- a partial bitstream.
+ This provides various sub-commands to initialise and configure the
+ Turndra tsi148 device. See the command help for full details.
-config CMD_FPGAD
- bool "fpgad - dump FPGA registers"
+config CMD_UNIVERSE
+ bool "universe - Command to set up the Turndra Universe controller"
help
- (legacy, needs conversion to driver model)
- Provides a way to dump FPGA registers by calling the board-specific
- fpga_get_reg() function. This functions similarly to the 'md'
- command.
+ This allows setting up the VMEbus provided by this controller.
+ See the command help for full details.
-config CMD_REMOTEPROC
- bool "remoteproc"
- depends on REMOTEPROC
+config CMD_USB
+ bool "usb"
help
- Support for Remote Processor control
+ USB support.
-config CMD_GPIO
- bool "gpio"
+config CMD_USB_SDP
+ bool "sdp"
+ select USB_FUNCTION_SDP
help
- GPIO support.
+ Enables the command "sdp" which is used to have U-Boot emulating the
+ Serial Download Protocol (SDP) via USB.
-config CMD_FDC
- bool "fdcboot - Boot from floppy device"
+config CMD_USB_MASS_STORAGE
+ bool "UMS usb mass storage"
help
- The 'fdtboot' command allows booting an image from a floppy disk.
+ USB mass storage support
endmenu
help
Run commands and summarize execution time.
+config CMD_GETTIME
+ bool "gettime - read elapsed time"
+ help
+ Enable the 'gettime' command which reads the elapsed time since
+ U-Boot started running. This shows the time in seconds and
+ milliseconds. See also the 'bootstage' command which provides more
+ flexibility for boot timing.
+
# TODO: rename to CMD_SLEEP
config CMD_MISC
bool "sleep"
help
Access the system timer.
-config CMD_SETGETDCR
- bool "getdcr, setdcr, getidcr, setidcr"
- depends on 4xx
- default y
- help
- getdcr - Get an AMCC PPC 4xx DCR's value
- setdcr - Set an AMCC PPC 4xx DCR's value
- getidcr - Get a register value via indirect DCR addressing
- setidcr - Set a register value via indirect DCR addressing
-
config CMD_SOUND
bool "sound"
depends on SOUND
source "cmd/mvebu/Kconfig"
+config CMD_TERMINAL
+ bool "terminal - provides a way to attach a serial terminal"
+ help
+ Provides a 'cu'-like serial terminal command. This can be used to
+ access other serial ports from the system console. The terminal
+ is very simple with no special processing of characters. As with
+ cu, you can press ~. (tilde followed by period) to exit.
+
+config CMD_UUID
+ bool "uuid, guid - generation of unique IDs"
+ help
+ This enables two commands:
+
+ uuid - generate random Universally Unique Identifier
+ guid - generate Globally Unique Identifier based on random UUID
+
+ The two commands are very similar except for the endianness of the
+ output.
+
endmenu
config CMD_BOOTSTAGE
generation/use as key for cryptographic operation. Key
modifier should be 16 byte long.
+config CMD_HASH
+ bool "Support 'hash' command"
+ select HASH
+ help
+ This provides a way to hash data in memory using various supported
+ algorithms (such as SHA1, MD5, CRC32). The computed digest can be
+ saved to memory or to an environment variable. It is also possible
+ to verify a hash against data in memory.
+
+config HASH_VERIFY
+ bool "hash -v"
+ depends on CMD_HASH
+ help
+ Add -v option to verify data against a hash.
+
config CMD_TPM
bool "Enable the 'tpm' command"
depends on TPM
config CMD_FAT
bool "FAT command support"
+ select FS_FAT
help
Support for the FAT fs
help
Enables fsuuid command for filesystem UUID.
+config CMD_JFFS2
+ bool "jffs2 command"
+ select FS_JFFS2
+ help
+ Enables commands to support the JFFS2 (Journalling Flash File System
+ version 2) filesystem. This enables fsload, ls and fsinfo which
+ provide the ability to load files, list directories and obtain
+ filesystem information.
+
config CMD_MTDPARTS
- depends on ARCH_SUNXI
bool "MTD partition support"
help
MTD partition support
Defines a default MTD partitioning scheme in the Linux MTD command
line partitions format
+config CMD_MTDPARTS_SPREAD
+ bool "Padd partition size to take account of bad blocks"
+ depends on CMD_MTDPARTS
+ help
+ This enables the 'spread' sub-command of the mtdparts command.
+ This command will modify the existing mtdparts variable by increasing
+ the size of the partitions such that 1) each partition's net size is
+ at least as large as the size specified in the mtdparts variable and
+ 2) each partition starts on a good block.
+
+config CMD_REISER
+ bool "reiser - Access to reiserfs filesystems"
+ help
+ This provides two commands which operate on a resierfs filesystem,
+ commonly used some years ago:
+
+ reiserls - list files
+ reiserload - load a file
+
+config CMD_SCSI
+ bool "scsi - Access to SCSI devices"
+ default y if SCSI
+ help
+ This provides a 'scsi' command which provides access to SCSI (Small
+ Computer System Interface) devices. The command provides a way to
+ scan the bus, reset the bus, read and write data and get information
+ about devices.
+
+config CMD_YAFFS2
+ bool "yaffs2 - Access of YAFFS2 filesystem"
+ depends on YAFFS2
+ default y
+ help
+ This provides commands for accessing a YAFFS2 filesystem. Yet
+ Another Flash Filesystem 2 is a filesystem designed specifically
+ for NAND flash. It incorporates bad-block management and ensures
+ that device writes are sequential regardless of filesystem
+ activity.
+
+config CMD_ZFS
+ bool "zfs - Access of ZFS filesystem"
+ help
+ This provides commands to accessing a ZFS filesystem, commonly used
+ on Solaris systems. Two sub-commands are provided:
+
+ zfsls - list files in a directory
+ zfsload - load a file
+
+ See doc/README.zfs for more details.
+
endmenu
menu "Debug commands"
available tests and running either all the tests, or specific tests
identified by name.
+config CMD_IRQ
+ bool "irq - Show information about interrupts"
+ depends on !ARM && !MIPS && !SH
+ help
+ This enables two commands:
+
+ interrupts - enable or disable interrupts
+ irqinfo - print device-specific interrupt information
+
+config CMD_KGDB
+ bool "kgdb - Allow debugging of U-Boot with gdb"
+ help
+ This enables a 'kgdb' command which allows gdb to connect to U-Boot
+ over a serial link for debugging purposes. This allows
+ single-stepping, inspecting variables, etc. This is supported only
+ on PowerPC at present.
+
+config CMD_TRACE
+ bool "trace - Support tracing of function calls and timing"
+ help
+ 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
+ details.
+
endmenu
config CMD_UBI
tristate "Enable UBI - Unsorted block images commands"
select CRC32
select MTD_UBI
+ select CMD_MTDPARTS
default y if NAND_SUNXI
help
UBI is a software layer above MTD layer which admits use of LVM-like
tristate "Enable UBIFS - Unsorted block images filesystem commands"
depends on CMD_UBI
select CRC32
- select RBTREE if ARCH_SUNXI
- select LZO if ARCH_SUNXI
- default y if NAND_SUNXI
+ select LZO
+ default y if CMD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.
projects / people / ms / u-boot.git / blobdiff