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_NTPSERVER 1098 bool "Request & store 'ntpserverip' from BOOTP/DHCP server" 1099 depends on CMD_BOOTP 1100 1101config BOOTP_PXE 1102 bool "Send PXE client arch to BOOTP/DHCP server" 1103 default y 1104 depends on CMD_BOOTP && CMD_PXE 1105 help 1106 Supported for ARM, ARM64, and x86 for now. 1107 1108config BOOTP_PXE_CLIENTARCH 1109 hex 1110 depends on BOOTP_PXE 1111 default 0x16 if ARM64 1112 default 0x15 if ARM 1113 default 0 if X86 1114 1115config BOOTP_VCI_STRING 1116 string 1117 depends on CMD_BOOTP 1118 default "U-Boot.armv7" if CPU_V7A || CPU_V7M || CPU_V7R 1119 default "U-Boot.armv8" if ARM64 1120 default "U-Boot.arm" if ARM 1121 default "U-Boot" 1122 1123config CMD_TFTPBOOT 1124 bool "tftpboot" 1125 default y 1126 help 1127 tftpboot - boot image via network using TFTP protocol 1128 1129config CMD_TFTPPUT 1130 bool "tftp put" 1131 depends on CMD_TFTPBOOT 1132 help 1133 TFTP put command, for uploading files to a server 1134 1135config CMD_TFTPSRV 1136 bool "tftpsrv" 1137 depends on CMD_TFTPBOOT 1138 help 1139 Act as a TFTP server and boot the first received file 1140 1141config NET_TFTP_VARS 1142 bool "Control TFTP timeout and count through environment" 1143 depends on CMD_TFTPBOOT 1144 default y 1145 help 1146 If set, allows controlling the TFTP timeout through the 1147 environment variable tftptimeout, and the TFTP maximum 1148 timeout count through the variable tftptimeoutcountmax. 1149 If unset, timeout and maximum are hard-defined as 1 second 1150 and 10 timouts per TFTP transfer. 1151 1152config CMD_RARP 1153 bool "rarpboot" 1154 help 1155 Boot image via network using RARP/TFTP protocol 1156 1157config CMD_NFS 1158 bool "nfs" 1159 default y 1160 help 1161 Boot image via network using NFS protocol. 1162 1163config CMD_MII 1164 bool "mii" 1165 help 1166 Enable MII utility commands. 1167 1168config CMD_PING 1169 bool "ping" 1170 help 1171 Send ICMP ECHO_REQUEST to network host 1172 1173config CMD_CDP 1174 bool "cdp" 1175 help 1176 Perform CDP network configuration 1177 1178config CMD_SNTP 1179 bool "sntp" 1180 help 1181 Synchronize RTC via network 1182 1183config CMD_DNS 1184 bool "dns" 1185 help 1186 Lookup the IP of a hostname 1187 1188config CMD_LINK_LOCAL 1189 bool "linklocal" 1190 help 1191 Acquire a network IP address using the link-local protocol 1192 1193endif 1194 1195config CMD_ETHSW 1196 bool "ethsw" 1197 help 1198 Allow control of L2 Ethernet switch commands. These are supported 1199 by the vsc9953 Ethernet driver at present. Sub-commands allow 1200 operations such as enabling / disabling a port and 1201 viewing/maintaining the filtering database (FDB) 1202 1203config CMD_PXE 1204 bool "pxe" 1205 select MENU 1206 help 1207 Boot image via network using PXE protocol 1208 1209endif 1210 1211menu "Misc commands" 1212 1213config CMD_BMP 1214 bool "Enable 'bmp' command" 1215 depends on LCD || DM_VIDEO || VIDEO 1216 help 1217 This provides a way to obtain information about a BMP-format iamge 1218 and to display it. BMP (which presumably stands for BitMaP) is a 1219 file format defined by Microsoft which supports images of various 1220 depths, formats and compression methods. Headers on the file 1221 determine the formats used. This command can be used by first loading 1222 the image into RAM, then using this command to look at it or display 1223 it. 1224 1225config CMD_BSP 1226 bool "Enable board-specific commands" 1227 help 1228 (deprecated: instead, please define a Kconfig option for each command) 1229 1230 Some boards have board-specific commands which are only enabled 1231 during developemnt and need to be turned off for production. This 1232 option provides a way to control this. The commands that are enabled 1233 vary depending on the board. 1234 1235config CMD_BKOPS_ENABLE 1236 bool "mmc bkops enable" 1237 depends on CMD_MMC 1238 default n 1239 help 1240 Enable command for setting manual background operations handshake 1241 on a eMMC device. The feature is optionally available on eMMC devices 1242 conforming to standard >= 4.41. 1243 1244config CMD_BLOCK_CACHE 1245 bool "blkcache - control and stats for block cache" 1246 depends on BLOCK_CACHE 1247 default y if BLOCK_CACHE 1248 help 1249 Enable the blkcache command, which can be used to control the 1250 operation of the cache functions. 1251 This is most useful when fine-tuning the operation of the cache 1252 during development, but also allows the cache to be disabled when 1253 it might hurt performance (e.g. when using the ums command). 1254 1255config CMD_CACHE 1256 bool "icache or dcache" 1257 help 1258 Enable the "icache" and "dcache" commands 1259 1260config CMD_DISPLAY 1261 bool "Enable the 'display' command, for character displays" 1262 help 1263 (this needs porting to driver model) 1264 This enables the 'display' command which allows a string to be 1265 displayed on a simple board-specific display. Implement 1266 display_putc() to use it. 1267 1268config CMD_LED 1269 bool "led" 1270 default y if LED 1271 help 1272 Enable the 'led' command which allows for control of LEDs supported 1273 by the board. The LEDs can be listed with 'led list' and controlled 1274 with led on/off/togle/blink. Any LED drivers can be controlled with 1275 this command, e.g. led_gpio. 1276 1277config CMD_DATE 1278 bool "date" 1279 default y if DM_RTC 1280 help 1281 Enable the 'date' command for getting/setting the time/date in RTC 1282 devices. 1283 1284config CMD_TIME 1285 bool "time" 1286 help 1287 Run commands and summarize execution time. 1288 1289config CMD_GETTIME 1290 bool "gettime - read elapsed time" 1291 help 1292 Enable the 'gettime' command which reads the elapsed time since 1293 U-Boot started running. This shows the time in seconds and 1294 milliseconds. See also the 'bootstage' command which provides more 1295 flexibility for boot timing. 1296 1297# TODO: rename to CMD_SLEEP 1298config CMD_MISC 1299 bool "sleep" 1300 default y 1301 help 1302 Delay execution for some time 1303 1304config CMD_TIMER 1305 bool "timer" 1306 help 1307 Access the system timer. 1308 1309config CMD_SOUND 1310 bool "sound" 1311 depends on SOUND 1312 help 1313 This provides basic access to the U-Boot's sound support. The main 1314 feature is to play a beep. 1315 1316 sound init - set up sound system 1317 sound play - play a sound 1318 1319config CMD_QFW 1320 bool "qfw" 1321 select QFW 1322 help 1323 This provides access to the QEMU firmware interface. The main 1324 feature is to allow easy loading of files passed to qemu-system 1325 via -kernel / -initrd 1326 1327source "cmd/mvebu/Kconfig" 1328 1329config CMD_TERMINAL 1330 bool "terminal - provides a way to attach a serial terminal" 1331 help 1332 Provides a 'cu'-like serial terminal command. This can be used to 1333 access other serial ports from the system console. The terminal 1334 is very simple with no special processing of characters. As with 1335 cu, you can press ~. (tilde followed by period) to exit. 1336 1337config CMD_UUID 1338 bool "uuid, guid - generation of unique IDs" 1339 select LIB_UUID 1340 help 1341 This enables two commands: 1342 1343 uuid - generate random Universally Unique Identifier 1344 guid - generate Globally Unique Identifier based on random UUID 1345 1346 The two commands are very similar except for the endianness of the 1347 output. 1348 1349endmenu 1350 1351source "cmd/ti/Kconfig" 1352 1353config CMD_BOOTSTAGE 1354 bool "Enable the 'bootstage' command" 1355 depends on BOOTSTAGE 1356 help 1357 Add a 'bootstage' command which supports printing a report 1358 and un/stashing of bootstage data. 1359 1360menu "Power commands" 1361config CMD_PMIC 1362 bool "Enable Driver Model PMIC command" 1363 depends on DM_PMIC 1364 help 1365 This is the pmic command, based on a driver model pmic's API. 1366 Command features are unchanged: 1367 - list - list pmic devices 1368 - pmic dev <id> - show or [set] operating pmic device (NEW) 1369 - pmic dump - dump registers 1370 - pmic read address - read byte of register at address 1371 - pmic write address - write byte to register at address 1372 The only one change for this command is 'dev' subcommand. 1373 1374config CMD_REGULATOR 1375 bool "Enable Driver Model REGULATOR command" 1376 depends on DM_REGULATOR 1377 help 1378 This command is based on driver model regulator's API. 1379 User interface features: 1380 - list - list regulator devices 1381 - regulator dev <id> - show or [set] operating regulator device 1382 - regulator info - print constraints info 1383 - regulator status - print operating status 1384 - regulator value <val] <-f> - print/[set] voltage value [uV] 1385 - regulator current <val> - print/[set] current value [uA] 1386 - regulator mode <id> - print/[set] operating mode id 1387 - regulator enable - enable the regulator output 1388 - regulator disable - disable the regulator output 1389 1390 The '-f' (force) option can be used for set the value which exceeds 1391 the limits, which are found in device-tree and are kept in regulator's 1392 uclass platdata structure. 1393 1394endmenu 1395 1396menu "Security commands" 1397config CMD_AES 1398 bool "Enable the 'aes' command" 1399 select AES 1400 help 1401 This provides a means to encrypt and decrypt data using the AES 1402 (Advanced Encryption Standard). This algorithm uses a symetric key 1403 and is widely used as a streaming cipher. Different key lengths are 1404 supported by the algorithm but this command only supports 128 bits 1405 at present. 1406 1407config CMD_BLOB 1408 bool "Enable the 'blob' command" 1409 help 1410 This is used with the Freescale secure boot mechanism. 1411 1412 Freescale's SEC block has built-in Blob Protocol which provides 1413 a method for protecting user-defined data across system power 1414 cycles. SEC block protects data in a data structure called a Blob, 1415 which provides both confidentiality and integrity protection. 1416 1417 Encapsulating data as a blob 1418 Each time that the Blob Protocol is used to protect data, a 1419 different randomly generated key is used to encrypt the data. 1420 This random key is itself encrypted using a key which is derived 1421 from SoC's non-volatile secret key and a 16 bit Key identifier. 1422 The resulting encrypted key along with encrypted data is called a 1423 blob. The non-volatile secure key is available for use only during 1424 secure boot. 1425 1426 During decapsulation, the reverse process is performed to get back 1427 the original data. 1428 1429 Sub-commands: 1430 blob enc - encapsulating data as a cryptgraphic blob 1431 blob dec - decapsulating cryptgraphic blob to get the data 1432 1433 Syntax: 1434 1435 blob enc src dst len km 1436 1437 Encapsulate and create blob of data $len bytes long 1438 at address $src and store the result at address $dst. 1439 $km is the 16 byte key modifier is also required for 1440 generation/use as key for cryptographic operation. Key 1441 modifier should be 16 byte long. 1442 1443 blob dec src dst len km 1444 1445 Decapsulate the blob of data at address $src and 1446 store result of $len byte at addr $dst. 1447 $km is the 16 byte key modifier is also required for 1448 generation/use as key for cryptographic operation. Key 1449 modifier should be 16 byte long. 1450 1451config CMD_HASH 1452 bool "Support 'hash' command" 1453 select HASH 1454 help 1455 This provides a way to hash data in memory using various supported 1456 algorithms (such as SHA1, MD5, CRC32). The computed digest can be 1457 saved to memory or to an environment variable. It is also possible 1458 to verify a hash against data in memory. 1459 1460config CMD_HVC 1461 bool "Support the 'hvc' command" 1462 depends on ARM_SMCCC 1463 help 1464 Allows issuing Hypervisor Calls (HVCs). Mostly useful for 1465 development and testing. 1466 1467config CMD_SMC 1468 bool "Support the 'smc' command" 1469 depends on ARM_SMCCC 1470 help 1471 Allows issuing Secure Monitor Calls (SMCs). Mostly useful for 1472 development and testing. 1473 1474config HASH_VERIFY 1475 bool "hash -v" 1476 depends on CMD_HASH 1477 help 1478 Add -v option to verify data against a hash. 1479 1480config CMD_TPM 1481 bool "Enable the 'tpm' command" 1482 depends on TPM 1483 help 1484 This provides a means to talk to a TPM from the command line. A wide 1485 range of commands if provided - see 'tpm help' for details. The 1486 command requires a suitable TPM on your board and the correct driver 1487 must be enabled. 1488 1489config CMD_TPM_TEST 1490 bool "Enable the 'tpm test' command" 1491 depends on CMD_TPM 1492 help 1493 This provides a a series of tests to confirm that the TPM is working 1494 correctly. The tests cover initialisation, non-volatile RAM, extend, 1495 global lock and checking that timing is within expectations. The 1496 tests pass correctly on Infineon TPMs but may need to be adjusted 1497 for other devices. 1498 1499endmenu 1500 1501menu "Firmware commands" 1502config CMD_CROS_EC 1503 bool "Enable crosec command" 1504 depends on CROS_EC 1505 default y 1506 help 1507 Enable command-line access to the Chrome OS EC (Embedded 1508 Controller). This provides the 'crosec' command which has 1509 a number of sub-commands for performing EC tasks such as 1510 updating its flash, accessing a small saved context area 1511 and talking to the I2C bus behind the EC (if there is one). 1512endmenu 1513 1514menu "Filesystem commands" 1515config CMD_BTRFS 1516 bool "Enable the 'btrsubvol' command" 1517 select FS_BTRFS 1518 help 1519 This enables the 'btrsubvol' command to list subvolumes 1520 of a BTRFS filesystem. There are no special commands for 1521 listing BTRFS directories or loading BTRFS files - this 1522 can be done by the generic 'fs' commands (see CMD_FS_GENERIC) 1523 when BTRFS is enabled (see FS_BTRFS). 1524 1525config CMD_CBFS 1526 bool "Enable the 'cbfs' command" 1527 depends on FS_CBFS 1528 help 1529 Define this to enable support for reading from a Coreboot 1530 filesystem. This is a ROM-based filesystem used for accessing files 1531 on systems that use coreboot as the first boot-loader and then load 1532 U-Boot to actually boot the Operating System. Available commands are 1533 cbfsinit, cbfsinfo, cbfsls and cbfsload. 1534 1535config CMD_CRAMFS 1536 bool "Enable the 'cramfs' command" 1537 depends on FS_CRAMFS 1538 help 1539 This provides commands for dealing with CRAMFS (Compressed ROM 1540 filesystem). CRAMFS is useful when space is tight since files are 1541 compressed. Two commands are provided: 1542 1543 cramfsls - lists files in a cramfs image 1544 cramfsload - loads a file from a cramfs image 1545 1546config CMD_EXT2 1547 bool "ext2 command support" 1548 select FS_EXT4 1549 help 1550 Enables EXT2 FS command 1551 1552config CMD_EXT4 1553 bool "ext4 command support" 1554 select FS_EXT4 1555 help 1556 Enables EXT4 FS command 1557 1558config CMD_EXT4_WRITE 1559 depends on CMD_EXT4 1560 bool "ext4 write command support" 1561 select EXT4_WRITE 1562 help 1563 Enables EXT4 FS write command 1564 1565config CMD_FAT 1566 bool "FAT command support" 1567 select FS_FAT 1568 help 1569 Support for the FAT fs 1570 1571config CMD_FS_GENERIC 1572 bool "filesystem commands" 1573 help 1574 Enables filesystem commands (e.g. load, ls) that work for multiple 1575 fs types. 1576 1577config CMD_FS_UUID 1578 bool "fsuuid command" 1579 help 1580 Enables fsuuid command for filesystem UUID. 1581 1582config CMD_JFFS2 1583 bool "jffs2 command" 1584 select FS_JFFS2 1585 help 1586 Enables commands to support the JFFS2 (Journalling Flash File System 1587 version 2) filesystem. This enables fsload, ls and fsinfo which 1588 provide the ability to load files, list directories and obtain 1589 filesystem information. 1590 1591config CMD_MTDPARTS 1592 bool "MTD partition support" 1593 help 1594 MTD partition support 1595 1596config MTDIDS_DEFAULT 1597 string "Default MTD IDs" 1598 depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1599 help 1600 Defines a default MTD IDs list for use with MTD partitions in the 1601 Linux MTD command line partitions format. 1602 1603config MTDPARTS_DEFAULT 1604 string "Default MTD partition scheme" 1605 depends on CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1606 help 1607 Defines a default MTD partitioning scheme in the Linux MTD command 1608 line partitions format 1609 1610config CMD_MTDPARTS_SPREAD 1611 bool "Padd partition size to take account of bad blocks" 1612 depends on CMD_MTDPARTS 1613 help 1614 This enables the 'spread' sub-command of the mtdparts command. 1615 This command will modify the existing mtdparts variable by increasing 1616 the size of the partitions such that 1) each partition's net size is 1617 at least as large as the size specified in the mtdparts variable and 1618 2) each partition starts on a good block. 1619 1620config CMD_REISER 1621 bool "reiser - Access to reiserfs filesystems" 1622 help 1623 This provides two commands which operate on a resierfs filesystem, 1624 commonly used some years ago: 1625 1626 reiserls - list files 1627 reiserload - load a file 1628 1629config CMD_YAFFS2 1630 bool "yaffs2 - Access of YAFFS2 filesystem" 1631 depends on YAFFS2 1632 default y 1633 help 1634 This provides commands for accessing a YAFFS2 filesystem. Yet 1635 Another Flash Filesystem 2 is a filesystem designed specifically 1636 for NAND flash. It incorporates bad-block management and ensures 1637 that device writes are sequential regardless of filesystem 1638 activity. 1639 1640config CMD_ZFS 1641 bool "zfs - Access of ZFS filesystem" 1642 help 1643 This provides commands to accessing a ZFS filesystem, commonly used 1644 on Solaris systems. Two sub-commands are provided: 1645 1646 zfsls - list files in a directory 1647 zfsload - load a file 1648 1649 See doc/README.zfs for more details. 1650 1651endmenu 1652 1653menu "Debug commands" 1654 1655config CMD_BEDBUG 1656 bool "bedbug" 1657 help 1658 The bedbug (emBEDded deBUGger) command provides debugging features 1659 for some PowerPC processors. For details please see the 1660 docuemntation in doc/README.beddbug 1661 1662config CMD_DIAG 1663 bool "diag - Board diagnostics" 1664 help 1665 This command provides access to board diagnostic tests. These are 1666 called Power-on Self Tests (POST). The command allows listing of 1667 available tests and running either all the tests, or specific tests 1668 identified by name. 1669 1670config CMD_IRQ 1671 bool "irq - Show information about interrupts" 1672 depends on !ARM && !MIPS && !SH 1673 help 1674 This enables two commands: 1675 1676 interrupts - enable or disable interrupts 1677 irqinfo - print device-specific interrupt information 1678 1679config CMD_KGDB 1680 bool "kgdb - Allow debugging of U-Boot with gdb" 1681 help 1682 This enables a 'kgdb' command which allows gdb to connect to U-Boot 1683 over a serial link for debugging purposes. This allows 1684 single-stepping, inspecting variables, etc. This is supported only 1685 on PowerPC at present. 1686 1687config CMD_LOG 1688 bool "log - Generation, control and access to logging" 1689 select LOG 1690 help 1691 This provides access to logging features. It allows the output of 1692 log data to be controlled to a limited extent (setting up the default 1693 maximum log level for emitting of records). It also provides access 1694 to a command used for testing the log system. 1695 1696config CMD_TRACE 1697 bool "trace - Support tracing of function calls and timing" 1698 help 1699 Enables a command to control using of function tracing within 1700 U-Boot. This allows recording of call traces including timing 1701 information. The command can write data to memory for exporting 1702 for analsys (e.g. using bootchart). See doc/README.trace for full 1703 details. 1704 1705endmenu 1706 1707config CMD_UBI 1708 tristate "Enable UBI - Unsorted block images commands" 1709 select CRC32 1710 select MTD_UBI 1711 select CMD_MTDPARTS 1712 default y if NAND_SUNXI 1713 help 1714 UBI is a software layer above MTD layer which admits use of LVM-like 1715 logical volumes on top of MTD devices, hides some complexities of 1716 flash chips like wear and bad blocks and provides some other useful 1717 capabilities. Please, consult the MTD web site for more details 1718 (www.linux-mtd.infradead.org). Activate this option if you want 1719 to use U-Boot UBI commands. 1720 1721config CMD_UBIFS 1722 tristate "Enable UBIFS - Unsorted block images filesystem commands" 1723 depends on CMD_UBI 1724 select CRC32 1725 select LZO 1726 default y if CMD_UBI 1727 help 1728 UBIFS is a file system for flash devices which works on top of UBI. 1729 1730endmenu 1731