1menu "Command line interface" 2 3config CMDLINE 4 bool "Support U-Boot commands" 5 default y 6 help 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. 13 14config HUSH_PARSER 15 bool "Use hush shell" 16 depends on CMDLINE 17 help 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"). 22 23 If disabled, you get the old, much simpler behaviour with a somewhat 24 smaller memory footprint. 25 26config CMDLINE_EDITING 27 bool "Enable command line editing" 28 depends on CMDLINE 29 default y 30 help 31 Enable editing and History functions for interactive command line 32 input operations 33 34config AUTO_COMPLETE 35 bool "Enable auto complete using TAB" 36 depends on CMDLINE 37 default y 38 help 39 Enable auto completion of commands using TAB. 40 41config SYS_LONGHELP 42 bool "Enable long help messages" 43 depends on CMDLINE 44 default y if CMDLINE 45 help 46 Defined when you want long help messages included 47 Do not set this option when short of memory. 48 49config SYS_PROMPT 50 string "Shell prompt" 51 default "=> " 52 help 53 This string is displayed in the command line to the left of the 54 cursor. 55 56menu "Autoboot options" 57 58config AUTOBOOT 59 bool "Autoboot" 60 default y 61 help 62 This enables the autoboot. See doc/README.autoboot for detail. 63 64config AUTOBOOT_KEYED 65 bool "Stop autobooting via specific input key / string" 66 default n 67 help 68 This option enables stopping (aborting) of the automatic 69 boot feature only by issuing a specific input key or 70 string. If not enabled, any input key will abort the 71 U-Boot automatic booting process and bring the device 72 to the U-Boot prompt for user input. 73 74config AUTOBOOT_PROMPT 75 string "Autoboot stop prompt" 76 depends on AUTOBOOT_KEYED 77 default "Autoboot in %d seconds\\n" 78 help 79 This string is displayed before the boot delay selected by 80 CONFIG_BOOTDELAY starts. If it is not defined there is no 81 output indicating that autoboot is in progress. 82 83 Note that this define is used as the (only) argument to a 84 printf() call, so it may contain '%' format specifications, 85 provided that it also includes, sepearated by commas exactly 86 like in a printf statement, the required arguments. It is 87 the responsibility of the user to select only such arguments 88 that are valid in the given context. 89 90config AUTOBOOT_ENCRYPTION 91 bool "Enable encryption in autoboot stopping" 92 depends on AUTOBOOT_KEYED 93 default n 94 95config AUTOBOOT_DELAY_STR 96 string "Delay autobooting via specific input key / string" 97 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 98 help 99 This option delays the automatic boot feature by issuing 100 a specific input key or string. If CONFIG_AUTOBOOT_DELAY_STR 101 or the environment variable "bootdelaykey" is specified 102 and this string is received from console input before 103 autoboot starts booting, U-Boot gives a command prompt. The 104 U-Boot prompt will time out if CONFIG_BOOT_RETRY_TIME is 105 used, otherwise it never times out. 106 107config AUTOBOOT_STOP_STR 108 string "Stop autobooting via specific input key / string" 109 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 110 help 111 This option enables stopping (aborting) of the automatic 112 boot feature only by issuing a specific input key or 113 string. If CONFIG_AUTOBOOT_STOP_STR or the environment 114 variable "bootstopkey" is specified and this string is 115 received from console input before autoboot starts booting, 116 U-Boot gives a command prompt. The U-Boot prompt never 117 times out, even if CONFIG_BOOT_RETRY_TIME is used. 118 119config AUTOBOOT_KEYED_CTRLC 120 bool "Enable Ctrl-C autoboot interruption" 121 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 122 default n 123 help 124 This option allows for the boot sequence to be interrupted 125 by ctrl-c, in addition to the "bootdelaykey" and "bootstopkey". 126 Setting this variable provides an escape sequence from the 127 limited "password" strings. 128 129config AUTOBOOT_STOP_STR_SHA256 130 string "Stop autobooting via SHA256 encrypted password" 131 depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION 132 help 133 This option adds the feature to only stop the autobooting, 134 and therefore boot into the U-Boot prompt, when the input 135 string / password matches a values that is encypted via 136 a SHA256 hash and saved in the environment. 137 138endmenu 139 140source "cmd/fastboot/Kconfig" 141 142config BUILD_BIN2C 143 bool 144 145comment "Commands" 146 147menu "Info commands" 148 149config CMD_BDI 150 bool "bdinfo" 151 default y 152 help 153 Print board info 154 155config CMD_CONFIG 156 bool "config" 157 select BUILD_BIN2C 158 default SANDBOX 159 help 160 Print ".config" contents. 161 162 If this option is enabled, the ".config" file contents are embedded 163 in the U-Boot image and can be printed on the console by the "config" 164 command. This provides information of which options are enabled on 165 the running U-Boot. 166 167config CMD_CONSOLE 168 bool "coninfo" 169 default y 170 help 171 Print console devices and information. 172 173config CMD_CPU 174 bool "cpu" 175 help 176 Print information about available CPUs. This normally shows the 177 number of CPUs, type (e.g. manufacturer, architecture, product or 178 internal name) and clock frequency. Other information may be 179 available depending on the CPU driver. 180 181config CMD_LICENSE 182 bool "license" 183 select BUILD_BIN2C 184 help 185 Print GPL license text 186 187config CMD_REGINFO 188 bool "reginfo" 189 depends on PPC 190 help 191 Register dump 192 193endmenu 194 195menu "Boot commands" 196 197config CMD_BOOTD 198 bool "bootd" 199 default y 200 help 201 Run the command stored in the environment "bootcmd", i.e. 202 "bootd" does the same thing as "run bootcmd". 203 204config CMD_BOOTM 205 bool "bootm" 206 default y 207 help 208 Boot an application image from the memory. 209 210config CMD_BOOTZ 211 bool "bootz" 212 help 213 Boot the Linux zImage 214 215config CMD_BOOTI 216 bool "booti" 217 depends on ARM64 218 default y 219 help 220 Boot an AArch64 Linux Kernel image from memory. 221 222config CMD_BOOTEFI 223 bool "bootefi" 224 depends on EFI_LOADER 225 default y 226 help 227 Boot an EFI image from memory. 228 229config CMD_BOOTEFI_HELLO_COMPILE 230 bool "Compile a standard EFI hello world binary for testing" 231 depends on CMD_BOOTEFI && (ARM || X86) 232 default y 233 help 234 This compiles a standard EFI hello world application with U-Boot so 235 that it can be used with the test/py testing framework. This is useful 236 for testing that EFI is working at a basic level, and for bringing 237 up EFI support on a new architecture. 238 239 No additional space will be required in the resulting U-Boot binary 240 when this option is enabled. 241 242config CMD_BOOTEFI_HELLO 243 bool "Allow booting a standard EFI hello world for testing" 244 depends on CMD_BOOTEFI_HELLO_COMPILE 245 help 246 This adds a standard EFI hello world application to U-Boot so that 247 it can be used with the 'bootefi hello' command. This is useful 248 for testing that EFI is working at a basic level, and for bringing 249 up EFI support on a new architecture. 250 251source lib/efi_selftest/Kconfig 252 253config CMD_BOOTMENU 254 bool "bootmenu" 255 select MENU 256 help 257 Add an ANSI terminal boot menu command. 258 259config CMD_ELF 260 bool "bootelf, bootvx" 261 default y 262 help 263 Boot an ELF/vxWorks image from the memory. 264 265config CMD_FDT 266 bool "Flattened Device Tree utility commands" 267 default y 268 depends on OF_LIBFDT 269 help 270 Do FDT related setup before booting into the Operating System. 271 272config CMD_GO 273 bool "go" 274 default y 275 help 276 Start an application at a given address. 277 278config CMD_RUN 279 bool "run" 280 default y 281 help 282 Run the command in the given environment variable. 283 284config CMD_IMI 285 bool "iminfo" 286 default y 287 help 288 Print header information for application image. 289 290config CMD_IMLS 291 bool "imls" 292 help 293 List all images found in flash 294 295config CMD_XIMG 296 bool "imxtract" 297 default y 298 help 299 Extract a part of a multi-image. 300 301config CMD_POWEROFF 302 bool "poweroff" 303 help 304 Poweroff/Shutdown the system 305 306config CMD_SPL 307 bool "spl export - Export boot information for Falcon boot" 308 depends on SPL 309 help 310 Falcon mode allows booting directly from SPL into an Operating 311 System such as Linux, thus skipping U-Boot proper. See 312 doc/README.falcon for full information about how to use this 313 command. 314 315config CMD_SPL_NAND_OFS 316 hex "Offset of OS command line args for Falcon-mode NAND boot" 317 depends on CMD_SPL 318 default 0 319 help 320 This provides the offset of the command line arguments for Linux 321 when booting from NAND in Falcon mode. See doc/README.falcon 322 for full information about how to use this option (and also see 323 board/gateworks/gw_ventana/README for an example). 324 325config CMD_SPL_WRITE_SIZE 326 hex "Size of argument area" 327 depends on CMD_SPL 328 default 0x2000 329 help 330 This provides the size of the command-line argument area in NAND 331 flash used by Falcon-mode boot. See the documentation until CMD_SPL 332 for detail. 333 334config CMD_FITUPD 335 bool "fitImage update command" 336 help 337 Implements the 'fitupd' command, which allows to automatically 338 store software updates present on a TFTP server in NOR Flash 339 340config CMD_THOR_DOWNLOAD 341 bool "thor - TIZEN 'thor' download" 342 help 343 Implements the 'thor' download protocol. This is a way of 344 downloading a software update over USB from an attached host. 345 There is no documentation about this within the U-Boot source code 346 but you should be able to find something on the interwebs. 347 348config CMD_ZBOOT 349 bool "zboot - x86 boot command" 350 help 351 With x86 machines it is common to boot a bzImage file which 352 contains both a kernel and a setup.bin file. The latter includes 353 configuration information from the dark ages which x86 boards still 354 need to pick things out of. 355 356 Consider using FIT in preference to this since it supports directly 357 booting both 32- and 64-bit kernels, as well as secure boot. 358 Documentation is available in doc/uImage.FIT/x86-fit-boot.txt 359 360endmenu 361 362menu "Environment commands" 363 364config CMD_ASKENV 365 bool "ask for env variable" 366 help 367 Ask for environment variable 368 369config CMD_EXPORTENV 370 bool "env export" 371 default y 372 help 373 Export environments. 374 375config CMD_IMPORTENV 376 bool "env import" 377 default y 378 help 379 Import environments. 380 381config CMD_EDITENV 382 bool "editenv" 383 default y 384 help 385 Edit environment variable. 386 387config CMD_GREPENV 388 bool "search env" 389 help 390 Allow for searching environment variables 391 392config CMD_SAVEENV 393 bool "saveenv" 394 default y 395 help 396 Save all environment variables into the compiled-in persistent 397 storage. 398 399config CMD_ENV_EXISTS 400 bool "env exists" 401 default y 402 help 403 Check if a variable is defined in the environment for use in 404 shell scripting. 405 406config CMD_ENV_CALLBACK 407 bool "env callbacks - print callbacks and their associated variables" 408 help 409 Some environment variable have callbacks defined by 410 U_BOOT_ENV_CALLBACK. These are called when the variable changes. 411 For example changing "baudrate" adjust the serial baud rate. This 412 command lists the currently defined callbacks. 413 414config CMD_ENV_FLAGS 415 bool "env flags -print variables that have non-default flags" 416 help 417 Some environment variables have special flags that control their 418 behaviour. For example, serial# can only be written once and cannot 419 be deleted. This command shows the variables that have special 420 flags. 421 422endmenu 423 424menu "Memory commands" 425 426config CMD_BINOP 427 bool "binop" 428 help 429 Compute binary operations (xor, or, and) of byte arrays of arbitrary 430 size from memory and store the result in memory or the environment. 431 432config CMD_CRC32 433 bool "crc32" 434 select HASH 435 default y 436 help 437 Compute CRC32. 438 439config CRC32_VERIFY 440 bool "crc32 -v" 441 depends on CMD_CRC32 442 help 443 Add -v option to verify data against a crc32 checksum. 444 445config CMD_EEPROM 446 bool "eeprom - EEPROM subsystem" 447 help 448 (deprecated, needs conversion to driver model) 449 Provides commands to read and write EEPROM (Electrically Erasable 450 Programmable Read Only Memory) chips that are connected over an 451 I2C bus. 452 453config CMD_EEPROM_LAYOUT 454 bool "Enable layout-aware eeprom commands" 455 depends on CMD_EEPROM 456 help 457 (deprecated, needs conversion to driver model) 458 When enabled, additional eeprom sub-commands become available. 459 460 eeprom print - prints the contents of the eeprom in a human-readable 461 way (eeprom layout fields, and data formatted to be fit for human 462 consumption). 463 464 eeprom update - allows user to update eeprom fields by specifying 465 the field name, and providing the new data in a human readable format 466 (same format as displayed by the eeprom print command). 467 468 Both commands can either auto detect the layout, or be told which 469 layout to use. 470 471 Feature API: 472 __weak int parse_layout_version(char *str) 473 - override to provide your own layout name parsing 474 __weak void __eeprom_layout_assign(struct eeprom_layout *layout, 475 int layout_version); 476 - override to setup the layout metadata based on the version 477 __weak int eeprom_layout_detect(unsigned char *data) 478 - override to provide your own algorithm for detecting layout 479 version 480 eeprom_field.c 481 - contains various printing and updating functions for common 482 types of eeprom fields. Can be used for defining 483 custom layouts. 484 485config EEPROM_LAYOUT_HELP_STRING 486 string "Tells user what layout names are supported" 487 depends on CMD_EEPROM_LAYOUT 488 default "<not defined>" 489 help 490 Help printed with the LAYOUT VERSIONS part of the 'eeprom' 491 command's help. 492 493config LOOPW 494 bool "loopw" 495 help 496 Infinite write loop on address range 497 498config CMD_MD5SUM 499 bool "md5sum" 500 default n 501 select MD5 502 help 503 Compute MD5 checksum. 504 505config MD5SUM_VERIFY 506 bool "md5sum -v" 507 default n 508 depends on CMD_MD5SUM 509 help 510 Add -v option to verify data against an MD5 checksum. 511 512config CMD_MEMINFO 513 bool "meminfo" 514 help 515 Display memory information. 516 517config CMD_MEMORY 518 bool "md, mm, nm, mw, cp, cmp, base, loop" 519 default y 520 help 521 Memory commands. 522 md - memory display 523 mm - memory modify (auto-incrementing address) 524 nm - memory modify (constant address) 525 mw - memory write (fill) 526 cp - memory copy 527 cmp - memory compare 528 base - print or set address offset 529 loop - initialize loop on address range 530 531config CMD_MEMTEST 532 bool "memtest" 533 help 534 Simple RAM read/write test. 535 536if CMD_MEMTEST 537 538config SYS_ALT_MEMTEST 539 bool "Alternative test" 540 help 541 Use a more complete alternative memory test. 542 543endif 544 545config CMD_MX_CYCLIC 546 bool "mdc, mwc" 547 help 548 mdc - memory display cyclic 549 mwc - memory write cyclic 550 551config CMD_SHA1SUM 552 bool "sha1sum" 553 select SHA1 554 help 555 Compute SHA1 checksum. 556 557config SHA1SUM_VERIFY 558 bool "sha1sum -v" 559 depends on CMD_SHA1SUM 560 help 561 Add -v option to verify data against a SHA1 checksum. 562 563config CMD_STRINGS 564 bool "strings - display strings in memory" 565 help 566 This works similarly to the Unix 'strings' command except that it 567 works with a memory range. String of printable characters found 568 within the range are displayed. The minimum number of characters 569 for a sequence to be considered a string can be provided. 570 571endmenu 572 573menu "Compression commands" 574 575config CMD_LZMADEC 576 bool "lzmadec" 577 default y if CMD_BOOTI 578 select LZMA 579 help 580 Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm) 581 image from memory. 582 583config CMD_UNZIP 584 bool "unzip" 585 default y if CMD_BOOTI 586 help 587 Uncompress a zip-compressed memory region. 588 589config CMD_ZIP 590 bool "zip" 591 help 592 Compress a memory region with zlib deflate method. 593 594endmenu 595 596menu "Device access commands" 597 598config CMD_ARMFLASH 599 #depends on FLASH_CFI_DRIVER 600 bool "armflash" 601 help 602 ARM Ltd reference designs flash partition access 603 604config CMD_ADC 605 bool "adc - Access Analog to Digital Converters info and data" 606 select ADC 607 select DM_REGULATOR 608 help 609 Shows ADC device info and permit printing one-shot analog converted 610 data from a named Analog to Digital Converter. 611 612config CMD_CLK 613 bool "clk - Show clock frequencies" 614 help 615 (deprecated) 616 Shows clock frequences by calling a sock_clk_dump() hook function. 617 This is depreated in favour of using the CLK uclass and accessing 618 clock values from associated drivers. However currently no command 619 exists for this. 620 621config CMD_DEMO 622 bool "demo - Demonstration commands for driver model" 623 depends on DM 624 help 625 Provides a 'demo' command which can be used to play around with 626 driver model. To use this properly you will need to enable one or 627 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE). 628 Otherwise you will always get an empty list of devices. The demo 629 devices are defined in the sandbox device tree, so the easiest 630 option is to use sandbox and pass the -d point to sandbox's 631 u-boot.dtb file. 632 633config CMD_DFU 634 bool "dfu" 635 select DFU 636 help 637 Enables the command "dfu" which is used to have U-Boot create a DFU 638 class device via USB. This command requires that the "dfu_alt_info" 639 environment variable be set and define the alt settings to expose to 640 the host. 641 642config CMD_DM 643 bool "dm - Access to driver model information" 644 depends on DM 645 default y 646 help 647 Provides access to driver model data structures and information, 648 such as a list of devices, list of uclasses and the state of each 649 device (e.g. activated). This is not required for operation, but 650 can be useful to see the state of driver model for debugging or 651 interest. 652 653config CMD_FDC 654 bool "fdcboot - Boot from floppy device" 655 help 656 The 'fdtboot' command allows booting an image from a floppy disk. 657 658config CMD_FLASH 659 bool "flinfo, erase, protect" 660 default y 661 help 662 NOR flash support. 663 flinfo - print FLASH memory information 664 erase - FLASH memory 665 protect - enable or disable FLASH write protection 666 667config CMD_FPGA 668 bool "fpga" 669 depends on FPGA 670 default y 671 help 672 FPGA support. 673 674config CMD_FPGA_LOADBP 675 bool "fpga loadbp - load partial bitstream (Xilinx only)" 676 depends on CMD_FPGA 677 help 678 Supports loading an FPGA device from a bitstream buffer containing 679 a partial bitstream. 680 681config CMD_FPGA_LOADFS 682 bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)" 683 depends on CMD_FPGA 684 help 685 Supports loading an FPGA device from a FAT filesystem. 686 687config CMD_FPGA_LOADMK 688 bool "fpga loadmk - load bitstream from image" 689 depends on CMD_FPGA 690 help 691 Supports loading an FPGA device from a image generated by mkimage. 692 693config CMD_FPGA_LOADP 694 bool "fpga loadp - load partial bitstream" 695 depends on CMD_FPGA 696 help 697 Supports loading an FPGA device from a bitstream buffer containing 698 a partial bitstream. 699 700config CMD_FPGAD 701 bool "fpgad - dump FPGA registers" 702 help 703 (legacy, needs conversion to driver model) 704 Provides a way to dump FPGA registers by calling the board-specific 705 fpga_get_reg() function. This functions similarly to the 'md' 706 command. 707 708config CMD_FUSE 709 bool "fuse - support for the fuse subssystem" 710 help 711 (deprecated - needs conversion to driver model) 712 This allows reading, sensing, programming or overriding fuses 713 which control the behaviour of the device. The command uses the 714 fuse_...() API. 715 716config CMD_GPIO 717 bool "gpio" 718 help 719 GPIO support. 720 721config CMD_GPT 722 bool "GPT (GUID Partition Table) command" 723 select PARTITION_UUIDS 724 select EFI_PARTITION 725 select HAVE_BLOCK_DEVICE 726 imply RANDOM_UUID 727 help 728 Enable the 'gpt' command to ready and write GPT style partition 729 tables. 730 731config RANDOM_UUID 732 bool "GPT Random UUID generation" 733 select LIB_UUID 734 help 735 Enable the generation of partitions with random UUIDs if none 736 are provided. 737 738config CMD_GPT_RENAME 739 bool "GPT partition renaming commands" 740 depends on CMD_GPT 741 help 742 Enables the 'gpt' command to interchange names on two GPT 743 partitions via the 'gpt swap' command or to rename single 744 partitions via the 'rename' command. 745 746config CMD_IDE 747 bool "ide - Support for IDE drivers" 748 select IDE 749 help 750 Provides an 'ide' command which allows accessing the IDE drive, 751 reseting the IDE interface, printing the partition table and 752 geting device info. It also enables the 'diskboot' command which 753 permits booting from an IDE drive. 754 755config CMD_IO 756 bool "io - Support for performing I/O accesses" 757 help 758 Provides an 'iod' command to display I/O space and an 'iow' command 759 to write values to the I/O space. This can be useful for manually 760 checking the state of devices during boot when debugging device 761 drivers, etc. 762 763config CMD_IOTRACE 764 bool "iotrace - Support for tracing I/O activity" 765 help 766 Provides an 'iotrace' command which supports recording I/O reads and 767 writes in a trace buffer in memory . It also maintains a checksum 768 of the trace records (even if space is exhausted) so that the 769 sequence of I/O accesses can be verified. 770 771 When debugging drivers it is useful to see what I/O accesses were 772 done and in what order. 773 774 Even if the individual accesses are of little interest it can be 775 useful to verify that the access pattern is consistent each time 776 an operation is performed. In this case a checksum can be used to 777 characterise the operation of a driver. The checksum can be compared 778 across different runs of the operation to verify that the driver is 779 working properly. 780 781 In particular, when performing major refactoring of the driver, where 782 the access pattern should not change, the checksum provides assurance 783 that the refactoring work has not broken the driver. 784 785 This works by sneaking into the io.h heder for an architecture and 786 redirecting I/O accesses through iotrace's tracing mechanism. 787 788 For now no commands are provided to examine the trace buffer. The 789 format is fairly simple, so 'md' is a reasonable substitute. 790 791 Note: The checksum feature is only useful for I/O regions where the 792 contents do not change outside of software control. Where this is not 793 suitable you can fall back to manually comparing the addresses. It 794 might be useful to enhance tracing to only checksum the accesses and 795 not the data read/written. 796 797config CMD_I2C 798 bool "i2c" 799 help 800 I2C support. 801 802config CMD_LOADB 803 bool "loadb" 804 default y 805 help 806 Load a binary file over serial line. 807 808config CMD_LOADS 809 bool "loads" 810 default y 811 help 812 Load an S-Record file over serial line 813 814config CMD_MMC 815 bool "mmc" 816 help 817 MMC memory mapped support. 818 819config CMD_NAND 820 bool "nand" 821 default y if NAND_SUNXI 822 help 823 NAND support. 824 825if CMD_NAND 826config CMD_NAND_TRIMFFS 827 bool "nand write.trimffs" 828 default y if ARCH_SUNXI 829 help 830 Allows one to skip empty pages when flashing something on a NAND. 831 832config CMD_NAND_LOCK_UNLOCK 833 bool "nand lock/unlock" 834 help 835 NAND locking support. 836 837config CMD_NAND_TORTURE 838 bool "nand torture" 839 help 840 NAND torture support. 841 842endif # CMD_NAND 843 844config CMD_NVME 845 bool "nvme" 846 depends on NVME 847 default y if NVME 848 help 849 NVM Express device support 850 851config CMD_MMC_SPI 852 bool "mmc_spi - Set up MMC SPI device" 853 help 854 Provides a way to set up an MMC (Multimedia Card) SPI (Serial 855 Peripheral Interface) device. The device provides a means of 856 accessing an MMC device via SPI using a single data line, limited 857 to 20MHz. It is useful since it reduces the amount of protocol code 858 required. 859 860config CMD_ONENAND 861 bool "onenand - access to onenand device" 862 help 863 OneNAND is a brand of NAND ('Not AND' gate) flash which provides 864 various useful features. This command allows reading, writing, 865 and erasing blocks. It allso provides a way to show and change 866 bad blocks, and test the device. 867 868config CMD_PART 869 bool "part" 870 select PARTITION_UUIDS 871 select HAVE_BLOCK_DEVICE 872 help 873 Read and display information about the partition table on 874 various media. 875 876config CMD_PCI 877 bool "pci - Access PCI devices" 878 help 879 Provide access to PCI (Peripheral Interconnect Bus), a type of bus 880 used on some devices to allow the CPU to communicate with its 881 peripherals. Sub-commands allow bus enumeration, displaying and 882 changing configuration space and a few other features. 883 884config CMD_PCMCIA 885 bool "pinit - Set up PCMCIA device" 886 help 887 Provides a means to initialise a PCMCIA (Personal Computer Memory 888 Card International Association) device. This is an old standard from 889 about 1990. These devices are typically removable memory or network 890 cards using a standard 68-pin connector. 891 892config CMD_READ 893 bool "read - Read binary data from a partition" 894 help 895 Provides low-level access to the data in a partition. 896 897config CMD_REMOTEPROC 898 bool "remoteproc" 899 depends on REMOTEPROC 900 help 901 Support for Remote Processor control 902 903config CMD_SATA 904 bool "sata - Access SATA subsystem" 905 select SATA 906 help 907 SATA (Serial Advanced Technology Attachment) is a serial bus 908 standard for connecting to hard drives and other storage devices. 909 This command provides information about attached devices and allows 910 reading, writing and other operations. 911 912 SATA replaces PATA (originally just ATA), which stands for Parallel AT 913 Attachment, where AT refers to an IBM AT (Advanced Technology) 914 computer released in 1984. 915 916config CMD_SAVES 917 bool "saves - Save a file over serial in S-Record format" 918 help 919 Provides a way to save a binary file using the Motorola S-Record 920 format over the serial line. 921 922config CMD_SCSI 923 bool "scsi - Access to SCSI devices" 924 default y if SCSI 925 help 926 This provides a 'scsi' command which provides access to SCSI (Small 927 Computer System Interface) devices. The command provides a way to 928 scan the bus, reset the bus, read and write data and get information 929 about devices. 930 931config CMD_SDRAM 932 bool "sdram - Print SDRAM configuration information" 933 help 934 Provides information about attached SDRAM. This assumed that the 935 SDRAM has an EEPROM with information that can be read using the 936 I2C bus. This is only available on some boards. 937 938config CMD_SF 939 bool "sf" 940 help 941 SPI Flash support 942 943config CMD_SF_TEST 944 bool "sf test - Allow testing of SPI flash" 945 help 946 Provides a way to test that SPI flash is working correctly. The 947 test is destructive, in that an area of SPI flash must be provided 948 for the test to use. Performance information is also provided, 949 measuring the performance of reading, writing and erasing in 950 Mbps (Million Bits Per Second). This value should approximately 951 equal the SPI bus speed for a single-bit-wide SPI bus, assuming 952 everything is working properly. 953 954config CMD_SPI 955 bool "sspi" 956 help 957 SPI utility command. 958 959config CMD_TSI148 960 bool "tsi148 - Command to access tsi148 device" 961 help 962 This provides various sub-commands to initialise and configure the 963 Turndra tsi148 device. See the command help for full details. 964 965config CMD_UNIVERSE 966 bool "universe - Command to set up the Turndra Universe controller" 967 help 968 This allows setting up the VMEbus provided by this controller. 969 See the command help for full details. 970 971config CMD_USB 972 bool "usb" 973 select HAVE_BLOCK_DEVICE 974 help 975 USB support. 976 977config CMD_USB_SDP 978 bool "sdp" 979 select USB_FUNCTION_SDP 980 help 981 Enables the command "sdp" which is used to have U-Boot emulating the 982 Serial Download Protocol (SDP) via USB. 983config CMD_ROCKUSB 984 bool "rockusb" 985 depends on USB_FUNCTION_ROCKUSB 986 help 987 Rockusb protocol is widely used by Rockchip SoC based devices. It can 988 read/write info, image to/from devices. This enable rockusb command 989 support to communication with rockusb device. for more detail about 990 this command, please read doc/README.rockusb. 991 992config CMD_USB_MASS_STORAGE 993 bool "UMS usb mass storage" 994 select USB_FUNCTION_MASS_STORAGE 995 help 996 USB mass storage support 997 998endmenu 999 1000 1001menu "Shell scripting commands" 1002 1003config CMD_ECHO 1004 bool "echo" 1005 default y 1006 help 1007 Echo args to console 1008 1009config CMD_ITEST 1010 bool "itest" 1011 default y 1012 help 1013 Return true/false on integer compare. 1014 1015config CMD_SOURCE 1016 bool "source" 1017 default y 1018 help 1019 Run script from memory 1020 1021config CMD_SETEXPR 1022 bool "setexpr" 1023 default y 1024 help 1025 Evaluate boolean and math expressions and store the result in an env 1026 variable. 1027 Also supports loading the value at a memory location into a variable. 1028 If CONFIG_REGEX is enabled, setexpr also supports a gsub function. 1029 1030endmenu 1031 1032if NET 1033 1034menuconfig CMD_NET 1035 bool "Network commands" 1036 default y 1037 1038if CMD_NET 1039 1040config CMD_BOOTP 1041 bool "bootp" 1042 default y 1043 help 1044 bootp - boot image via network using BOOTP/TFTP protocol 1045 1046config CMD_DHCP 1047 bool "dhcp" 1048 depends on CMD_BOOTP 1049 help 1050 Boot image via network using DHCP/TFTP protocol 1051 1052config BOOTP_BOOTPATH 1053 bool "Request & store 'rootpath' from BOOTP/DHCP server" 1054 default y 1055 depends on CMD_BOOTP 1056 help 1057 Even though the config is called BOOTP_BOOTPATH, it stores the 1058 path in the variable 'rootpath'. 1059 1060config BOOTP_DNS 1061 bool "Request & store 'dnsip' from BOOTP/DHCP server" 1062 default y 1063 depends on CMD_BOOTP 1064 help 1065 The primary DNS server is stored as 'dnsip'. If two servers are 1066 returned, you must set BOOTP_DNS2 to store that second server IP 1067 also. 1068 1069config BOOTP_DNS2 1070 bool "Store 'dnsip2' from BOOTP/DHCP server" 1071 depends on BOOTP_DNS 1072 help 1073 If a DHCP client requests the DNS server IP from a DHCP server, 1074 it is possible that more than one DNS serverip is offered to the 1075 client. If CONFIG_BOOTP_DNS2 is enabled, the secondary DNS 1076 server IP will be stored in the additional environment 1077 variable "dnsip2". The first DNS serverip is always 1078 stored in the variable "dnsip", when BOOTP_DNS is defined. 1079 1080config BOOTP_GATEWAY 1081 bool "Request & store 'gatewayip' from BOOTP/DHCP server" 1082 default y 1083 depends on CMD_BOOTP 1084 1085config BOOTP_HOSTNAME 1086 bool "Request & store 'hostname' from BOOTP/DHCP server" 1087 default y 1088 depends on CMD_BOOTP 1089 help 1090 The name may or may not be qualified with the local domain name. 1091 1092config BOOTP_SUBNETMASK 1093 bool "Request & store 'netmask' from BOOTP/DHCP server" 1094 default y 1095 depends on CMD_BOOTP 1096 1097config BOOTP_PXE 1098 bool "Send PXE client arch to BOOTP/DHCP server" 1099 default y 1100 depends on CMD_BOOTP && CMD_PXE 1101 help 1102 Supported for ARM, ARM64, and x86 for now. 1103 1104config BOOTP_PXE_CLIENTARCH 1105 hex 1106 depends on BOOTP_PXE 1107 default 0x16 if ARM64 1108 default 0x15 if ARM 1109 default 0 if X86 1110 1111config BOOTP_VCI_STRING 1112 string 1113 depends on CMD_BOOTP 1114 default "U-Boot.armv7" if CPU_V7A || CPU_V7M || CPU_V7R 1115 default "U-Boot.armv8" if ARM64 1116 default "U-Boot.arm" if ARM 1117 default "U-Boot" 1118 1119config CMD_TFTPBOOT 1120 bool "tftpboot" 1121 default y 1122 help 1123 tftpboot - boot image via network using TFTP protocol 1124 1125config CMD_TFTPPUT 1126 bool "tftp put" 1127 depends on CMD_TFTPBOOT 1128 help 1129 TFTP put command, for uploading files to a server 1130 1131config CMD_TFTPSRV 1132 bool "tftpsrv" 1133 depends on CMD_TFTPBOOT 1134 help 1135 Act as a TFTP server and boot the first received file 1136 1137config NET_TFTP_VARS 1138 bool "Control TFTP timeout and count through environment" 1139 depends on CMD_TFTPBOOT 1140 default y 1141 help 1142 If set, allows controlling the TFTP timeout through the 1143 environment variable tftptimeout, and the TFTP maximum 1144 timeout count through the variable tftptimeoutcountmax. 1145 If unset, timeout and maximum are hard-defined as 1 second 1146 and 10 timouts per TFTP transfer. 1147 1148config CMD_RARP 1149 bool "rarpboot" 1150 help 1151 Boot image via network using RARP/TFTP protocol 1152 1153config CMD_NFS 1154 bool "nfs" 1155 default y 1156 help 1157 Boot image via network using NFS protocol. 1158 1159config CMD_MII 1160 bool "mii" 1161 help 1162 Enable MII utility commands. 1163 1164config CMD_PING 1165 bool "ping" 1166 help 1167 Send ICMP ECHO_REQUEST to network host 1168 1169config CMD_CDP 1170 bool "cdp" 1171 help 1172 Perform CDP network configuration 1173 1174config CMD_SNTP 1175 bool "sntp" 1176 help 1177 Synchronize RTC via network 1178 1179config CMD_DNS 1180 bool "dns" 1181 help 1182 Lookup the IP of a hostname 1183 1184config CMD_LINK_LOCAL 1185 bool "linklocal" 1186 help 1187 Acquire a network IP address using the link-local protocol 1188 1189endif 1190 1191config CMD_ETHSW 1192 bool "ethsw" 1193 help 1194 Allow control of L2 Ethernet switch commands. These are supported 1195 by the vsc9953 Ethernet driver at present. Sub-commands allow 1196 operations such as enabling / disabling a port and 1197 viewing/maintaining the filtering database (FDB) 1198 1199config CMD_PXE 1200 bool "pxe" 1201 select MENU 1202 help 1203 Boot image via network using PXE protocol 1204 1205endif 1206 1207menu "Misc commands" 1208 1209config CMD_BMP 1210 bool "Enable 'bmp' command" 1211 depends on LCD || DM_VIDEO || VIDEO 1212 help 1213 This provides a way to obtain information about a BMP-format iamge 1214 and to display it. BMP (which presumably stands for BitMaP) is a 1215 file format defined by Microsoft which supports images of various 1216 depths, formats and compression methods. Headers on the file 1217 determine the formats used. This command can be used by first loading 1218 the image into RAM, then using this command to look at it or display 1219 it. 1220 1221config CMD_BSP 1222 bool "Enable board-specific commands" 1223 help 1224 (deprecated: instead, please define a Kconfig option for each command) 1225 1226 Some boards have board-specific commands which are only enabled 1227 during developemnt and need to be turned off for production. This 1228 option provides a way to control this. The commands that are enabled 1229 vary depending on the board. 1230 1231config CMD_BKOPS_ENABLE 1232 bool "mmc bkops enable" 1233 depends on CMD_MMC 1234 default n 1235 help 1236 Enable command for setting manual background operations handshake 1237 on a eMMC device. The feature is optionally available on eMMC devices 1238 conforming to standard >= 4.41. 1239 1240config CMD_BLOCK_CACHE 1241 bool "blkcache - control and stats for block cache" 1242 depends on BLOCK_CACHE 1243 default y if BLOCK_CACHE 1244 help 1245 Enable the blkcache command, which can be used to control the 1246 operation of the cache functions. 1247 This is most useful when fine-tuning the operation of the cache 1248 during development, but also allows the cache to be disabled when 1249 it might hurt performance (e.g. when using the ums command). 1250 1251config CMD_CACHE 1252 bool "icache or dcache" 1253 help 1254 Enable the "icache" and "dcache" commands 1255 1256config CMD_DISPLAY 1257 bool "Enable the 'display' command, for character displays" 1258 help 1259 (this needs porting to driver model) 1260 This enables the 'display' command which allows a string to be 1261 displayed on a simple board-specific display. Implement 1262 display_putc() to use it. 1263 1264config CMD_LED 1265 bool "led" 1266 default y if LED 1267 help 1268 Enable the 'led' command which allows for control of LEDs supported 1269 by the board. The LEDs can be listed with 'led list' and controlled 1270 with led on/off/togle/blink. Any LED drivers can be controlled with 1271 this command, e.g. led_gpio. 1272 1273config CMD_DATE 1274 bool "date" 1275 default y if DM_RTC 1276 help 1277 Enable the 'date' command for getting/setting the time/date in RTC 1278 devices. 1279 1280config CMD_TIME 1281 bool "time" 1282 help 1283 Run commands and summarize execution time. 1284 1285config CMD_GETTIME 1286 bool "gettime - read elapsed time" 1287 help 1288 Enable the 'gettime' command which reads the elapsed time since 1289 U-Boot started running. This shows the time in seconds and 1290 milliseconds. See also the 'bootstage' command which provides more 1291 flexibility for boot timing. 1292 1293# TODO: rename to CMD_SLEEP 1294config CMD_MISC 1295 bool "sleep" 1296 default y 1297 help 1298 Delay execution for some time 1299 1300config CMD_TIMER 1301 bool "timer" 1302 help 1303 Access the system timer. 1304 1305config CMD_SOUND 1306 bool "sound" 1307 depends on SOUND 1308 help 1309 This provides basic access to the U-Boot's sound support. The main 1310 feature is to play a beep. 1311 1312 sound init - set up sound system 1313 sound play - play a sound 1314 1315config CMD_QFW 1316 bool "qfw" 1317 select QFW 1318 help 1319 This provides access to the QEMU firmware interface. The main 1320 feature is to allow easy loading of files passed to qemu-system 1321 via -kernel / -initrd 1322 1323source "cmd/mvebu/Kconfig" 1324 1325config CMD_TERMINAL 1326 bool "terminal - provides a way to attach a serial terminal" 1327 help 1328 Provides a 'cu'-like serial terminal command. This can be used to 1329 access other serial ports from the system console. The terminal 1330 is very simple with no special processing of characters. As with 1331 cu, you can press ~. (tilde followed by period) to exit. 1332 1333config CMD_UUID 1334 bool "uuid, guid - generation of unique IDs" 1335 select LIB_UUID 1336 help 1337 This enables two commands: 1338 1339 uuid - generate random Universally Unique Identifier 1340 guid - generate Globally Unique Identifier based on random UUID 1341 1342 The two commands are very similar except for the endianness of the 1343 output. 1344 1345endmenu 1346 1347source "cmd/ti/Kconfig" 1348 1349config CMD_BOOTSTAGE 1350 bool "Enable the 'bootstage' command" 1351 depends on BOOTSTAGE 1352 help 1353 Add a 'bootstage' command which supports printing a report 1354 and un/stashing of bootstage data. 1355 1356menu "Power commands" 1357config CMD_PMIC 1358 bool "Enable Driver Model PMIC command" 1359 depends on DM_PMIC 1360 help 1361 This is the pmic command, based on a driver model pmic's API. 1362 Command features are unchanged: 1363 - list - list pmic devices 1364 - pmic dev <id> - show or [set] operating pmic device (NEW) 1365 - pmic dump - dump registers 1366 - pmic read address - read byte of register at address 1367 - pmic write address - write byte to register at address 1368 The only one change for this command is 'dev' subcommand. 1369 1370config CMD_REGULATOR 1371 bool "Enable Driver Model REGULATOR command" 1372 depends on DM_REGULATOR 1373 help 1374 This command is based on driver model regulator's API. 1375 User interface features: 1376 - list - list regulator devices 1377 - regulator dev <id> - show or [set] operating regulator device 1378 - regulator info - print constraints info 1379 - regulator status - print operating status 1380 - regulator value <val] <-f> - print/[set] voltage value [uV] 1381 - regulator current <val> - print/[set] current value [uA] 1382 - regulator mode <id> - print/[set] operating mode id 1383 - regulator enable - enable the regulator output 1384 - regulator disable - disable the regulator output 1385 1386 The '-f' (force) option can be used for set the value which exceeds 1387 the limits, which are found in device-tree and are kept in regulator's 1388 uclass platdata structure. 1389 1390endmenu 1391 1392menu "Security commands" 1393config CMD_AES 1394 bool "Enable the 'aes' command" 1395 select AES 1396 help 1397 This provides a means to encrypt and decrypt data using the AES 1398 (Advanced Encryption Standard). This algorithm uses a symetric key 1399 and is widely used as a streaming cipher. Different key lengths are 1400 supported by the algorithm but this command only supports 128 bits 1401 at present. 1402 1403config CMD_BLOB 1404 bool "Enable the 'blob' command" 1405 help 1406 This is used with the Freescale secure boot mechanism. 1407 1408 Freescale's SEC block has built-in Blob Protocol which provides 1409 a method for protecting user-defined data across system power 1410 cycles. SEC block protects data in a data structure called a Blob, 1411 which provides both confidentiality and integrity protection. 1412 1413 Encapsulating data as a blob 1414 Each time that the Blob Protocol is used to protect data, a 1415 different randomly generated key is used to encrypt the data. 1416 This random key is itself encrypted using a key which is derived 1417 from SoC's non-volatile secret key and a 16 bit Key identifier. 1418 The resulting encrypted key along with encrypted data is called a 1419 blob. The non-volatile secure key is available for use only during 1420 secure boot. 1421 1422 During decapsulation, the reverse process is performed to get back 1423 the original data. 1424 1425 Sub-commands: 1426 blob enc - encapsulating data as a cryptgraphic blob 1427 blob dec - decapsulating cryptgraphic blob to get the data 1428 1429 Syntax: 1430 1431 blob enc src dst len km 1432 1433 Encapsulate and create blob of data $len bytes long 1434 at address $src and store the result at address $dst. 1435 $km is the 16 byte key modifier is also required for 1436 generation/use as key for cryptographic operation. Key 1437 modifier should be 16 byte long. 1438 1439 blob dec src dst len km 1440 1441 Decapsulate the blob of data at address $src and 1442 store result of $len byte at addr $dst. 1443 $km is the 16 byte key modifier is also required for 1444 generation/use as key for cryptographic operation. Key 1445 modifier should be 16 byte long. 1446 1447config CMD_HASH 1448 bool "Support 'hash' command" 1449 select HASH 1450 help 1451 This provides a way to hash data in memory using various supported 1452 algorithms (such as SHA1, MD5, CRC32). The computed digest can be 1453 saved to memory or to an environment variable. It is also possible 1454 to verify a hash against data in memory. 1455 1456config CMD_HVC 1457 bool "Support the 'hvc' command" 1458 depends on ARM_SMCCC 1459 help 1460 Allows issuing Hypervisor Calls (HVCs). Mostly useful for 1461 development and testing. 1462 1463config CMD_SMC 1464 bool "Support the 'smc' command" 1465 depends on ARM_SMCCC 1466 help 1467 Allows issuing Secure Monitor Calls (SMCs). Mostly useful for 1468 development and testing. 1469 1470config HASH_VERIFY 1471 bool "hash -v" 1472 depends on CMD_HASH 1473 help 1474 Add -v option to verify data against a hash. 1475 1476config CMD_TPM 1477 bool "Enable the 'tpm' command" 1478 depends on TPM 1479 help 1480 This provides a means to talk to a TPM from the command line. A wide 1481 range of commands if provided - see 'tpm help' for details. The 1482 command requires a suitable TPM on your board and the correct driver 1483 must be enabled. 1484 1485config CMD_TPM_TEST 1486 bool "Enable the 'tpm test' command" 1487 depends on CMD_TPM 1488 help 1489 This provides a a series of tests to confirm that the TPM is working 1490 correctly. The tests cover initialisation, non-volatile RAM, extend, 1491 global lock and checking that timing is within expectations. The 1492 tests pass correctly on Infineon TPMs but may need to be adjusted 1493 for other devices. 1494 1495endmenu 1496 1497menu "Firmware commands" 1498config CMD_CROS_EC 1499 bool "Enable crosec command" 1500 depends on CROS_EC 1501 default y 1502 help 1503 Enable command-line access to the Chrome OS EC (Embedded 1504 Controller). This provides the 'crosec' command which has 1505 a number of sub-commands for performing EC tasks such as 1506 updating its flash, accessing a small saved context area 1507 and talking to the I2C bus behind the EC (if there is one). 1508endmenu 1509 1510menu "Filesystem commands" 1511config CMD_BTRFS 1512 bool "Enable the 'btrsubvol' command" 1513 select FS_BTRFS 1514 help 1515 This enables the 'btrsubvol' command to list subvolumes 1516 of a BTRFS filesystem. There are no special commands for 1517 listing BTRFS directories or loading BTRFS files - this 1518 can be done by the generic 'fs' commands (see CMD_FS_GENERIC) 1519 when BTRFS is enabled (see FS_BTRFS). 1520 1521config CMD_CBFS 1522 bool "Enable the 'cbfs' command" 1523 depends on FS_CBFS 1524 help 1525 Define this to enable support for reading from a Coreboot 1526 filesystem. This is a ROM-based filesystem used for accessing files 1527 on systems that use coreboot as the first boot-loader and then load 1528 U-Boot to actually boot the Operating System. Available commands are 1529 cbfsinit, cbfsinfo, cbfsls and cbfsload. 1530 1531config CMD_CRAMFS 1532 bool "Enable the 'cramfs' command" 1533 depends on FS_CRAMFS 1534 help 1535 This provides commands for dealing with CRAMFS (Compressed ROM 1536 filesystem). CRAMFS is useful when space is tight since files are 1537 compressed. Two commands are provided: 1538 1539 cramfsls - lists files in a cramfs image 1540 cramfsload - loads a file from a cramfs image 1541 1542config CMD_EXT2 1543 bool "ext2 command support" 1544 select FS_EXT4 1545 help 1546 Enables EXT2 FS command 1547 1548config CMD_EXT4 1549 bool "ext4 command support" 1550 select FS_EXT4 1551 help 1552 Enables EXT4 FS command 1553 1554config CMD_EXT4_WRITE 1555 depends on CMD_EXT4 1556 bool "ext4 write command support" 1557 select EXT4_WRITE 1558 help 1559 Enables EXT4 FS write command 1560 1561config CMD_FAT 1562 bool "FAT command support" 1563 select FS_FAT 1564 help 1565 Support for the FAT fs 1566 1567config CMD_FS_GENERIC 1568 bool "filesystem commands" 1569 help 1570 Enables filesystem commands (e.g. load, ls) that work for multiple 1571 fs types. 1572 1573config CMD_FS_UUID 1574 bool "fsuuid command" 1575 help 1576 Enables fsuuid command for filesystem UUID. 1577 1578config CMD_JFFS2 1579 bool "jffs2 command" 1580 select FS_JFFS2 1581 help 1582 Enables commands to support the JFFS2 (Journalling Flash File System 1583 version 2) filesystem. This enables fsload, ls and fsinfo which 1584 provide the ability to load files, list directories and obtain 1585 filesystem information. 1586 1587config CMD_MTDPARTS 1588 bool "MTD partition support" 1589 help 1590 MTD partition support 1591 1592config MTDIDS_DEFAULT 1593 string "Default MTD IDs" 1594 depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1595 help 1596 Defines a default MTD IDs list for use with MTD partitions in the 1597 Linux MTD command line partitions format. 1598 1599config MTDPARTS_DEFAULT 1600 string "Default MTD partition scheme" 1601 depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1602 help 1603 Defines a default MTD partitioning scheme in the Linux MTD command 1604 line partitions format 1605 1606config CMD_MTDPARTS_SPREAD 1607 bool "Padd partition size to take account of bad blocks" 1608 depends on CMD_MTDPARTS 1609 help 1610 This enables the 'spread' sub-command of the mtdparts command. 1611 This command will modify the existing mtdparts variable by increasing 1612 the size of the partitions such that 1) each partition's net size is 1613 at least as large as the size specified in the mtdparts variable and 1614 2) each partition starts on a good block. 1615 1616config CMD_REISER 1617 bool "reiser - Access to reiserfs filesystems" 1618 help 1619 This provides two commands which operate on a resierfs filesystem, 1620 commonly used some years ago: 1621 1622 reiserls - list files 1623 reiserload - load a file 1624 1625config CMD_YAFFS2 1626 bool "yaffs2 - Access of YAFFS2 filesystem" 1627 depends on YAFFS2 1628 default y 1629 help 1630 This provides commands for accessing a YAFFS2 filesystem. Yet 1631 Another Flash Filesystem 2 is a filesystem designed specifically 1632 for NAND flash. It incorporates bad-block management and ensures 1633 that device writes are sequential regardless of filesystem 1634 activity. 1635 1636config CMD_ZFS 1637 bool "zfs - Access of ZFS filesystem" 1638 help 1639 This provides commands to accessing a ZFS filesystem, commonly used 1640 on Solaris systems. Two sub-commands are provided: 1641 1642 zfsls - list files in a directory 1643 zfsload - load a file 1644 1645 See doc/README.zfs for more details. 1646 1647endmenu 1648 1649menu "Debug commands" 1650 1651config CMD_BEDBUG 1652 bool "bedbug" 1653 help 1654 The bedbug (emBEDded deBUGger) command provides debugging features 1655 for some PowerPC processors. For details please see the 1656 docuemntation in doc/README.beddbug 1657 1658config CMD_DIAG 1659 bool "diag - Board diagnostics" 1660 help 1661 This command provides access to board diagnostic tests. These are 1662 called Power-on Self Tests (POST). The command allows listing of 1663 available tests and running either all the tests, or specific tests 1664 identified by name. 1665 1666config CMD_IRQ 1667 bool "irq - Show information about interrupts" 1668 depends on !ARM && !MIPS && !SH 1669 help 1670 This enables two commands: 1671 1672 interrupts - enable or disable interrupts 1673 irqinfo - print device-specific interrupt information 1674 1675config CMD_KGDB 1676 bool "kgdb - Allow debugging of U-Boot with gdb" 1677 help 1678 This enables a 'kgdb' command which allows gdb to connect to U-Boot 1679 over a serial link for debugging purposes. This allows 1680 single-stepping, inspecting variables, etc. This is supported only 1681 on PowerPC at present. 1682 1683config CMD_LOG 1684 bool "log - Generation, control and access to logging" 1685 select LOG 1686 help 1687 This provides access to logging features. It allows the output of 1688 log data to be controlled to a limited extent (setting up the default 1689 maximum log level for emitting of records). It also provides access 1690 to a command used for testing the log system. 1691 1692config CMD_TRACE 1693 bool "trace - Support tracing of function calls and timing" 1694 help 1695 Enables a command to control using of function tracing within 1696 U-Boot. This allows recording of call traces including timing 1697 information. The command can write data to memory for exporting 1698 for analsys (e.g. using bootchart). See doc/README.trace for full 1699 details. 1700 1701endmenu 1702 1703config CMD_UBI 1704 tristate "Enable UBI - Unsorted block images commands" 1705 select CRC32 1706 select MTD_UBI 1707 select CMD_MTDPARTS 1708 default y if NAND_SUNXI 1709 help 1710 UBI is a software layer above MTD layer which admits use of LVM-like 1711 logical volumes on top of MTD devices, hides some complexities of 1712 flash chips like wear and bad blocks and provides some other useful 1713 capabilities. Please, consult the MTD web site for more details 1714 (www.linux-mtd.infradead.org). Activate this option if you want 1715 to use U-Boot UBI commands. 1716 1717config CMD_UBIFS 1718 tristate "Enable UBIFS - Unsorted block images filesystem commands" 1719 depends on CMD_UBI 1720 select CRC32 1721 select LZO 1722 default y if CMD_UBI 1723 help 1724 UBIFS is a file system for flash devices which works on top of UBI. 1725 1726endmenu 1727