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 SYS_PROMPT 27 string "Shell prompt" 28 default "=> " 29 help 30 This string is displayed in the command line to the left of the 31 cursor. 32 33menu "Autoboot options" 34 35config AUTOBOOT 36 bool "Autoboot" 37 default y 38 help 39 This enables the autoboot. See doc/README.autoboot for detail. 40 41config AUTOBOOT_KEYED 42 bool "Stop autobooting via specific input key / string" 43 default n 44 help 45 This option enables stopping (aborting) of the automatic 46 boot feature only by issuing a specific input key or 47 string. If not enabled, any input key will abort the 48 U-Boot automatic booting process and bring the device 49 to the U-Boot prompt for user input. 50 51config AUTOBOOT_PROMPT 52 string "Autoboot stop prompt" 53 depends on AUTOBOOT_KEYED 54 default "Autoboot in %d seconds\\n" 55 help 56 This string is displayed before the boot delay selected by 57 CONFIG_BOOTDELAY starts. If it is not defined there is no 58 output indicating that autoboot is in progress. 59 60 Note that this define is used as the (only) argument to a 61 printf() call, so it may contain '%' format specifications, 62 provided that it also includes, sepearated by commas exactly 63 like in a printf statement, the required arguments. It is 64 the responsibility of the user to select only such arguments 65 that are valid in the given context. 66 67config AUTOBOOT_ENCRYPTION 68 bool "Enable encryption in autoboot stopping" 69 depends on AUTOBOOT_KEYED 70 default n 71 72config AUTOBOOT_DELAY_STR 73 string "Delay autobooting via specific input key / string" 74 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 75 help 76 This option delays the automatic boot feature by issuing 77 a specific input key or string. If CONFIG_AUTOBOOT_DELAY_STR 78 or the environment variable "bootdelaykey" is specified 79 and this string is received from console input before 80 autoboot starts booting, U-Boot gives a command prompt. The 81 U-Boot prompt will time out if CONFIG_BOOT_RETRY_TIME is 82 used, otherwise it never times out. 83 84config AUTOBOOT_STOP_STR 85 string "Stop autobooting via specific input key / string" 86 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 87 help 88 This option enables stopping (aborting) of the automatic 89 boot feature only by issuing a specific input key or 90 string. If CONFIG_AUTOBOOT_STOP_STR or the environment 91 variable "bootstopkey" is specified and this string is 92 received from console input before autoboot starts booting, 93 U-Boot gives a command prompt. The U-Boot prompt never 94 times out, even if CONFIG_BOOT_RETRY_TIME is used. 95 96config AUTOBOOT_KEYED_CTRLC 97 bool "Enable Ctrl-C autoboot interruption" 98 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 99 default n 100 help 101 This option allows for the boot sequence to be interrupted 102 by ctrl-c, in addition to the "bootdelaykey" and "bootstopkey". 103 Setting this variable provides an escape sequence from the 104 limited "password" strings. 105 106config AUTOBOOT_STOP_STR_SHA256 107 string "Stop autobooting via SHA256 encrypted password" 108 depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION 109 help 110 This option adds the feature to only stop the autobooting, 111 and therefore boot into the U-Boot prompt, when the input 112 string / password matches a values that is encypted via 113 a SHA256 hash and saved in the environment. 114 115endmenu 116 117source "cmd/fastboot/Kconfig" 118 119comment "Commands" 120 121menu "Info commands" 122 123config CMD_BDI 124 bool "bdinfo" 125 default y 126 help 127 Print board info 128 129config CMD_CONFIG 130 bool "config" 131 select BUILD_BIN2C 132 default SANDBOX 133 help 134 Print ".config" contents. 135 136 If this option is enabled, the ".config" file contents are embedded 137 in the U-Boot image and can be printed on the console by the "config" 138 command. This provides information of which options are enabled on 139 the running U-Boot. 140 141config CMD_CONSOLE 142 bool "coninfo" 143 default y 144 help 145 Print console devices and information. 146 147config CMD_CPU 148 bool "cpu" 149 help 150 Print information about available CPUs. This normally shows the 151 number of CPUs, type (e.g. manufacturer, architecture, product or 152 internal name) and clock frequency. Other information may be 153 available depending on the CPU driver. 154 155config CMD_LICENSE 156 bool "license" 157 select BUILD_BIN2C 158 help 159 Print GPL license text 160 161endmenu 162 163menu "Boot commands" 164 165config CMD_BOOTD 166 bool "bootd" 167 default y 168 help 169 Run the command stored in the environment "bootcmd", i.e. 170 "bootd" does the same thing as "run bootcmd". 171 172config CMD_BOOTM 173 bool "bootm" 174 default y 175 help 176 Boot an application image from the memory. 177 178config CMD_BOOTZ 179 bool "bootz" 180 help 181 Boot the Linux zImage 182 183config CMD_BOOTI 184 bool "booti" 185 depends on ARM64 186 default y 187 help 188 Boot an AArch64 Linux Kernel image from memory. 189 190config CMD_BOOTEFI 191 bool "bootefi" 192 depends on EFI_LOADER 193 default y 194 help 195 Boot an EFI image from memory. 196 197config CMD_BOOTEFI_HELLO_COMPILE 198 bool "Compile a standard EFI hello world binary for testing" 199 depends on CMD_BOOTEFI && (ARM || X86) 200 default y 201 help 202 This compiles a standard EFI hello world application with U-Boot so 203 that it can be used with the test/py testing framework. This is useful 204 for testing that EFI is working at a basic level, and for bringing 205 up EFI support on a new architecture. 206 207 No additional space will be required in the resulting U-Boot binary 208 when this option is enabled. 209 210config CMD_BOOTEFI_HELLO 211 bool "Allow booting a standard EFI hello world for testing" 212 depends on CMD_BOOTEFI_HELLO_COMPILE 213 help 214 This adds a standard EFI hello world application to U-Boot so that 215 it can be used with the 'bootefi hello' command. This is useful 216 for testing that EFI is working at a basic level, and for bringing 217 up EFI support on a new architecture. 218 219config CMD_BOOTMENU 220 bool "bootmenu" 221 select MENU 222 help 223 Add an ANSI terminal boot menu command. 224 225config CMD_ELF 226 bool "bootelf, bootvx" 227 default y 228 help 229 Boot an ELF/vxWorks image from the memory. 230 231config CMD_FDT 232 bool "Flattened Device Tree utility commands" 233 default y 234 depends on OF_LIBFDT 235 help 236 Do FDT related setup before booting into the Operating System. 237 238config CMD_GO 239 bool "go" 240 default y 241 help 242 Start an application at a given address. 243 244config CMD_RUN 245 bool "run" 246 default y 247 help 248 Run the command in the given environment variable. 249 250config CMD_IMI 251 bool "iminfo" 252 default y 253 help 254 Print header information for application image. 255 256config CMD_IMLS 257 bool "imls" 258 default y 259 help 260 List all images found in flash 261 262config CMD_XIMG 263 bool "imxtract" 264 default y 265 help 266 Extract a part of a multi-image. 267 268config CMD_POWEROFF 269 bool 270 271endmenu 272 273menu "Environment commands" 274 275config CMD_ASKENV 276 bool "ask for env variable" 277 help 278 Ask for environment variable 279 280config CMD_EXPORTENV 281 bool "env export" 282 default y 283 help 284 Export environments. 285 286config CMD_IMPORTENV 287 bool "env import" 288 default y 289 help 290 Import environments. 291 292config CMD_EDITENV 293 bool "editenv" 294 default y 295 help 296 Edit environment variable. 297 298config CMD_GREPENV 299 bool "search env" 300 help 301 Allow for searching environment variables 302 303config CMD_SAVEENV 304 bool "saveenv" 305 default y 306 help 307 Save all environment variables into the compiled-in persistent 308 storage. 309 310config CMD_ENV_EXISTS 311 bool "env exists" 312 default y 313 help 314 Check if a variable is defined in the environment for use in 315 shell scripting. 316 317endmenu 318 319menu "Memory commands" 320 321config CMD_MEMORY 322 bool "md, mm, nm, mw, cp, cmp, base, loop" 323 default y 324 help 325 Memory commands. 326 md - memory display 327 mm - memory modify (auto-incrementing address) 328 nm - memory modify (constant address) 329 mw - memory write (fill) 330 cp - memory copy 331 cmp - memory compare 332 base - print or set address offset 333 loop - initialize loop on address range 334 335config CMD_CRC32 336 bool "crc32" 337 default y 338 help 339 Compute CRC32. 340 341config CMD_MD5SUM 342 bool "md5sum" 343 default n 344 select MD5 345 help 346 Compute MD5 checksum. 347 348config MD5SUM_VERFIY 349 bool "md5sum -v" 350 default n 351 depends on CMD_MD5SUM 352 help 353 Add -v option to verify data against an MD5 checksum. 354 355config LOOPW 356 bool "loopw" 357 help 358 Infinite write loop on address range 359 360config CMD_MEMTEST 361 bool "memtest" 362 help 363 Simple RAM read/write test. 364 365config CMD_MX_CYCLIC 366 bool "mdc, mwc" 367 help 368 mdc - memory display cyclic 369 mwc - memory write cyclic 370 371config CMD_MEMINFO 372 bool "meminfo" 373 help 374 Display memory information. 375 376config CMD_UNZIP 377 bool "unzip" 378 help 379 Uncompress a zip-compressed memory region. 380 381config CMD_ZIP 382 bool "zip" 383 help 384 Compress a memory region with zlib deflate method. 385 386endmenu 387 388menu "Device access commands" 389 390config CMD_DM 391 bool "dm - Access to driver model information" 392 depends on DM 393 default y 394 help 395 Provides access to driver model data structures and information, 396 such as a list of devices, list of uclasses and the state of each 397 device (e.g. activated). This is not required for operation, but 398 can be useful to see the state of driver model for debugging or 399 interest. 400 401config CMD_DEMO 402 bool "demo - Demonstration commands for driver model" 403 depends on DM 404 help 405 Provides a 'demo' command which can be used to play around with 406 driver model. To use this properly you will need to enable one or 407 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE). 408 Otherwise you will always get an empty list of devices. The demo 409 devices are defined in the sandbox device tree, so the easiest 410 option is to use sandbox and pass the -d point to sandbox's 411 u-boot.dtb file. 412 413config CMD_LOADB 414 bool "loadb" 415 default y 416 help 417 Load a binary file over serial line. 418 419config CMD_LOADS 420 bool "loads" 421 default y 422 help 423 Load an S-Record file over serial line 424 425config CMD_FLASH 426 bool "flinfo, erase, protect" 427 default y 428 help 429 NOR flash support. 430 flinfo - print FLASH memory information 431 erase - FLASH memory 432 protect - enable or disable FLASH write protection 433 434config CMD_GPT 435 bool "GPT (GUID Partition Table) command" 436 select PARTITION_UUIDS 437 select EFI_PARTITION 438 help 439 Enable the 'gpt' command to ready and write GPT style partition 440 tables. 441 442config CMD_ARMFLASH 443 #depends on FLASH_CFI_DRIVER 444 bool "armflash" 445 help 446 ARM Ltd reference designs flash partition access 447 448config CMD_MMC 449 bool "mmc" 450 help 451 MMC memory mapped support. 452 453config CMD_NAND 454 bool "nand" 455 default y if NAND_SUNXI 456 help 457 NAND support. 458 459if CMD_NAND 460config CMD_NAND_TRIMFFS 461 bool "nand write.trimffs" 462 default y if ARCH_SUNXI 463 help 464 Allows one to skip empty pages when flashing something on a NAND. 465 466config CMD_NAND_LOCK_UNLOCK 467 bool "nand lock/unlock" 468 help 469 NAND locking support. 470 471config CMD_NAND_TORTURE 472 bool "nand torture" 473 help 474 NAND torture support. 475 476endif # CMD_NAND 477 478config CMD_PART 479 bool "part" 480 select PARTITION_UUIDS 481 help 482 Read and display information about the partition table on 483 various media. 484 485config CMD_SF 486 bool "sf" 487 help 488 SPI Flash support 489 490config CMD_SPI 491 bool "sspi" 492 help 493 SPI utility command. 494 495config CMD_I2C 496 bool "i2c" 497 help 498 I2C support. 499 500config CMD_USB 501 bool "usb" 502 help 503 USB support. 504 505config CMD_DFU 506 bool "dfu" 507 select USB_FUNCTION_DFU 508 help 509 Enables the command "dfu" which is used to have U-Boot create a DFU 510 class device via USB. 511 512config CMD_USB_MASS_STORAGE 513 bool "UMS usb mass storage" 514 help 515 USB mass storage support 516 517config CMD_FPGA 518 bool "fpga" 519 default y 520 help 521 FPGA support. 522 523config CMD_REMOTEPROC 524 bool "remoteproc" 525 depends on REMOTEPROC 526 help 527 Support for Remote Processor control 528 529config CMD_GPIO 530 bool "gpio" 531 help 532 GPIO support. 533 534endmenu 535 536 537menu "Shell scripting commands" 538 539config CMD_ECHO 540 bool "echo" 541 default y 542 help 543 Echo args to console 544 545config CMD_ITEST 546 bool "itest" 547 default y 548 help 549 Return true/false on integer compare. 550 551config CMD_SOURCE 552 bool "source" 553 default y 554 help 555 Run script from memory 556 557config CMD_SETEXPR 558 bool "setexpr" 559 default y 560 help 561 Evaluate boolean and math expressions and store the result in an env 562 variable. 563 Also supports loading the value at a memory location into a variable. 564 If CONFIG_REGEX is enabled, setexpr also supports a gsub function. 565 566endmenu 567 568menu "Network commands" 569 570config CMD_NET 571 bool "bootp, tftpboot" 572 select NET 573 default y 574 help 575 Network commands. 576 bootp - boot image via network using BOOTP/TFTP protocol 577 tftpboot - boot image via network using TFTP protocol 578 579config CMD_TFTPPUT 580 bool "tftp put" 581 help 582 TFTP put command, for uploading files to a server 583 584config CMD_TFTPSRV 585 bool "tftpsrv" 586 help 587 Act as a TFTP server and boot the first received file 588 589config CMD_RARP 590 bool "rarpboot" 591 help 592 Boot image via network using RARP/TFTP protocol 593 594config CMD_DHCP 595 bool "dhcp" 596 help 597 Boot image via network using DHCP/TFTP protocol 598 599config CMD_PXE 600 bool "pxe" 601 select MENU 602 help 603 Boot image via network using PXE protocol 604 605config CMD_NFS 606 bool "nfs" 607 default y 608 help 609 Boot image via network using NFS protocol. 610 611config CMD_MII 612 bool "mii" 613 help 614 Enable MII utility commands. 615 616config CMD_PING 617 bool "ping" 618 help 619 Send ICMP ECHO_REQUEST to network host 620 621config CMD_CDP 622 bool "cdp" 623 help 624 Perform CDP network configuration 625 626config CMD_SNTP 627 bool "sntp" 628 help 629 Synchronize RTC via network 630 631config CMD_DNS 632 bool "dns" 633 help 634 Lookup the IP of a hostname 635 636config CMD_LINK_LOCAL 637 bool "linklocal" 638 help 639 Acquire a network IP address using the link-local protocol 640 641endmenu 642 643menu "Misc commands" 644 645config CMD_BMP 646 bool "Enable 'bmp' command" 647 depends on LCD || DM_VIDEO || VIDEO 648 help 649 This provides a way to obtain information about a BMP-format iamge 650 and to display it. BMP (which presumably stands for BitMaP) is a 651 file format defined by Microsoft which supports images of various 652 depths, formats and compression methods. Headers on the file 653 determine the formats used. This command can be used by first loading 654 the image into RAM, then using this command to look at it or display 655 it. 656 657config CMD_BKOPS_ENABLE 658 bool "mmc bkops enable" 659 depends on CMD_MMC 660 default n 661 help 662 Enable command for setting manual background operations handshake 663 on a eMMC device. The feature is optionally available on eMMC devices 664 conforming to standard >= 4.41. 665 666config CMD_BLOCK_CACHE 667 bool "blkcache - control and stats for block cache" 668 depends on BLOCK_CACHE 669 default y if BLOCK_CACHE 670 help 671 Enable the blkcache command, which can be used to control the 672 operation of the cache functions. 673 This is most useful when fine-tuning the operation of the cache 674 during development, but also allows the cache to be disabled when 675 it might hurt performance (e.g. when using the ums command). 676 677config CMD_CACHE 678 bool "icache or dcache" 679 help 680 Enable the "icache" and "dcache" commands 681 682config CMD_LED 683 bool "led" 684 default y if LED 685 help 686 Enable the 'led' command which allows for control of LEDs supported 687 by the board. The LEDs can be listed with 'led list' and controlled 688 with led on/off/togle/blink. Any LED drivers can be controlled with 689 this command, e.g. led_gpio. 690 691config CMD_TIME 692 bool "time" 693 help 694 Run commands and summarize execution time. 695 696# TODO: rename to CMD_SLEEP 697config CMD_MISC 698 bool "sleep" 699 default y 700 help 701 Delay execution for some time 702 703config CMD_TIMER 704 bool "timer" 705 help 706 Access the system timer. 707 708config CMD_SETGETDCR 709 bool "getdcr, setdcr, getidcr, setidcr" 710 depends on 4xx 711 default y 712 help 713 getdcr - Get an AMCC PPC 4xx DCR's value 714 setdcr - Set an AMCC PPC 4xx DCR's value 715 getidcr - Get a register value via indirect DCR addressing 716 setidcr - Set a register value via indirect DCR addressing 717 718config CMD_SOUND 719 bool "sound" 720 depends on SOUND 721 help 722 This provides basic access to the U-Boot's sound support. The main 723 feature is to play a beep. 724 725 sound init - set up sound system 726 sound play - play a sound 727 728config CMD_QFW 729 bool "qfw" 730 select QFW 731 help 732 This provides access to the QEMU firmware interface. The main 733 feature is to allow easy loading of files passed to qemu-system 734 via -kernel / -initrd 735 736source "cmd/mvebu/Kconfig" 737 738endmenu 739 740config CMD_BOOTSTAGE 741 bool "Enable the 'bootstage' command" 742 depends on BOOTSTAGE 743 help 744 Add a 'bootstage' command which supports printing a report 745 and un/stashing of bootstage data. 746 747menu "Power commands" 748config CMD_PMIC 749 bool "Enable Driver Model PMIC command" 750 depends on DM_PMIC 751 help 752 This is the pmic command, based on a driver model pmic's API. 753 Command features are unchanged: 754 - list - list pmic devices 755 - pmic dev <id> - show or [set] operating pmic device (NEW) 756 - pmic dump - dump registers 757 - pmic read address - read byte of register at address 758 - pmic write address - write byte to register at address 759 The only one change for this command is 'dev' subcommand. 760 761config CMD_REGULATOR 762 bool "Enable Driver Model REGULATOR command" 763 depends on DM_REGULATOR 764 help 765 This command is based on driver model regulator's API. 766 User interface features: 767 - list - list regulator devices 768 - regulator dev <id> - show or [set] operating regulator device 769 - regulator info - print constraints info 770 - regulator status - print operating status 771 - regulator value <val] <-f> - print/[set] voltage value [uV] 772 - regulator current <val> - print/[set] current value [uA] 773 - regulator mode <id> - print/[set] operating mode id 774 - regulator enable - enable the regulator output 775 - regulator disable - disable the regulator output 776 777 The '-f' (force) option can be used for set the value which exceeds 778 the limits, which are found in device-tree and are kept in regulator's 779 uclass platdata structure. 780 781endmenu 782 783menu "Security commands" 784config CMD_AES 785 bool "Enable the 'aes' command" 786 select AES 787 help 788 This provides a means to encrypt and decrypt data using the AES 789 (Advanced Encryption Standard). This algorithm uses a symetric key 790 and is widely used as a streaming cipher. Different key lengths are 791 supported by the algorithm but this command only supports 128 bits 792 at present. 793 794config CMD_BLOB 795 bool "Enable the 'blob' command" 796 help 797 This is used with the Freescale secure boot mechanism. 798 799 Freescale's SEC block has built-in Blob Protocol which provides 800 a method for protecting user-defined data across system power 801 cycles. SEC block protects data in a data structure called a Blob, 802 which provides both confidentiality and integrity protection. 803 804 Encapsulating data as a blob 805 Each time that the Blob Protocol is used to protect data, a 806 different randomly generated key is used to encrypt the data. 807 This random key is itself encrypted using a key which is derived 808 from SoC's non-volatile secret key and a 16 bit Key identifier. 809 The resulting encrypted key along with encrypted data is called a 810 blob. The non-volatile secure key is available for use only during 811 secure boot. 812 813 During decapsulation, the reverse process is performed to get back 814 the original data. 815 816 Sub-commands: 817 blob enc - encapsulating data as a cryptgraphic blob 818 blob dec - decapsulating cryptgraphic blob to get the data 819 820 Syntax: 821 822 blob enc src dst len km 823 824 Encapsulate and create blob of data $len bytes long 825 at address $src and store the result at address $dst. 826 $km is the 16 byte key modifier is also required for 827 generation/use as key for cryptographic operation. Key 828 modifier should be 16 byte long. 829 830 blob dec src dst len km 831 832 Decapsulate the blob of data at address $src and 833 store result of $len byte at addr $dst. 834 $km is the 16 byte key modifier is also required for 835 generation/use as key for cryptographic operation. Key 836 modifier should be 16 byte long. 837 838config CMD_TPM 839 bool "Enable the 'tpm' command" 840 depends on TPM 841 help 842 This provides a means to talk to a TPM from the command line. A wide 843 range of commands if provided - see 'tpm help' for details. The 844 command requires a suitable TPM on your board and the correct driver 845 must be enabled. 846 847config CMD_TPM_TEST 848 bool "Enable the 'tpm test' command" 849 depends on CMD_TPM 850 help 851 This provides a a series of tests to confirm that the TPM is working 852 correctly. The tests cover initialisation, non-volatile RAM, extend, 853 global lock and checking that timing is within expectations. The 854 tests pass correctly on Infineon TPMs but may need to be adjusted 855 for other devices. 856 857endmenu 858 859menu "Firmware commands" 860config CMD_CROS_EC 861 bool "Enable crosec command" 862 depends on CROS_EC 863 default y 864 help 865 Enable command-line access to the Chrome OS EC (Embedded 866 Controller). This provides the 'crosec' command which has 867 a number of sub-commands for performing EC tasks such as 868 updating its flash, accessing a small saved context area 869 and talking to the I2C bus behind the EC (if there is one). 870endmenu 871 872menu "Filesystem commands" 873config CMD_EXT2 874 bool "ext2 command support" 875 help 876 Enables EXT2 FS command 877 878config CMD_EXT4 879 bool "ext4 command support" 880 help 881 Enables EXT4 FS command 882 883config CMD_EXT4_WRITE 884 depends on CMD_EXT4 885 bool "ext4 write command support" 886 help 887 Enables EXT4 FS write command 888 889config CMD_FAT 890 bool "FAT command support" 891 help 892 Support for the FAT fs 893 894config CMD_FS_GENERIC 895 bool "filesystem commands" 896 help 897 Enables filesystem commands (e.g. load, ls) that work for multiple 898 fs types. 899 900config CMD_FS_UUID 901 bool "fsuuid command" 902 help 903 Enables fsuuid command for filesystem UUID. 904 905config CMD_MTDPARTS 906 depends on ARCH_SUNXI 907 bool "MTD partition support" 908 help 909 MTD partition support 910 911config MTDIDS_DEFAULT 912 string "Default MTD IDs" 913 depends on CMD_MTDPARTS 914 help 915 Defines a default MTD ID 916 917config MTDPARTS_DEFAULT 918 string "Default MTD partition scheme" 919 depends on CMD_MTDPARTS 920 help 921 Defines a default MTD partitioning scheme in the Linux MTD command 922 line partitions format 923 924endmenu 925 926menu "Debug commands" 927 928config CMD_BEDBUG 929 bool "bedbug" 930 help 931 The bedbug (emBEDded deBUGger) command provides debugging features 932 for some PowerPC processors. For details please see the 933 docuemntation in doc/README.beddbug 934 935endmenu 936 937config CMD_UBI 938 tristate "Enable UBI - Unsorted block images commands" 939 select CRC32 940 select MTD_UBI 941 default y if NAND_SUNXI 942 help 943 UBI is a software layer above MTD layer which admits use of LVM-like 944 logical volumes on top of MTD devices, hides some complexities of 945 flash chips like wear and bad blocks and provides some other useful 946 capabilities. Please, consult the MTD web site for more details 947 (www.linux-mtd.infradead.org). Activate this option if you want 948 to use U-Boot UBI commands. 949 950config CMD_UBIFS 951 tristate "Enable UBIFS - Unsorted block images filesystem commands" 952 depends on CMD_UBI 953 select CRC32 954 select RBTREE if ARCH_SUNXI 955 select LZO if ARCH_SUNXI 956 default y if NAND_SUNXI 957 help 958 UBIFS is a file system for flash devices which works on top of UBI. 959 960endmenu 961