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 119config BUILD_BIN2C 120 bool 121 122comment "Commands" 123 124menu "Info commands" 125 126config CMD_BDI 127 bool "bdinfo" 128 default y 129 help 130 Print board info 131 132config CMD_CONFIG 133 bool "config" 134 select BUILD_BIN2C 135 default SANDBOX 136 help 137 Print ".config" contents. 138 139 If this option is enabled, the ".config" file contents are embedded 140 in the U-Boot image and can be printed on the console by the "config" 141 command. This provides information of which options are enabled on 142 the running U-Boot. 143 144config CMD_CONSOLE 145 bool "coninfo" 146 default y 147 help 148 Print console devices and information. 149 150config CMD_CPU 151 bool "cpu" 152 help 153 Print information about available CPUs. This normally shows the 154 number of CPUs, type (e.g. manufacturer, architecture, product or 155 internal name) and clock frequency. Other information may be 156 available depending on the CPU driver. 157 158config CMD_LICENSE 159 bool "license" 160 select BUILD_BIN2C 161 help 162 Print GPL license text 163 164config CMD_REGINFO 165 bool "reginfo" 166 depends on PPC 167 help 168 Register dump 169 170endmenu 171 172menu "Boot commands" 173 174config CMD_BOOTD 175 bool "bootd" 176 default y 177 help 178 Run the command stored in the environment "bootcmd", i.e. 179 "bootd" does the same thing as "run bootcmd". 180 181config CMD_BOOTM 182 bool "bootm" 183 default y 184 help 185 Boot an application image from the memory. 186 187config CMD_BOOTZ 188 bool "bootz" 189 help 190 Boot the Linux zImage 191 192config CMD_BOOTI 193 bool "booti" 194 depends on ARM64 195 default y 196 help 197 Boot an AArch64 Linux Kernel image from memory. 198 199config CMD_BOOTEFI 200 bool "bootefi" 201 depends on EFI_LOADER 202 default y 203 help 204 Boot an EFI image from memory. 205 206config CMD_BOOTEFI_HELLO_COMPILE 207 bool "Compile a standard EFI hello world binary for testing" 208 depends on CMD_BOOTEFI && (ARM || X86) 209 default y 210 help 211 This compiles a standard EFI hello world application with U-Boot so 212 that it can be used with the test/py testing framework. This is useful 213 for testing that EFI is working at a basic level, and for bringing 214 up EFI support on a new architecture. 215 216 No additional space will be required in the resulting U-Boot binary 217 when this option is enabled. 218 219config CMD_BOOTEFI_HELLO 220 bool "Allow booting a standard EFI hello world for testing" 221 depends on CMD_BOOTEFI_HELLO_COMPILE 222 help 223 This adds a standard EFI hello world application to U-Boot so that 224 it can be used with the 'bootefi hello' command. This is useful 225 for testing that EFI is working at a basic level, and for bringing 226 up EFI support on a new architecture. 227 228config CMD_BOOTMENU 229 bool "bootmenu" 230 select MENU 231 help 232 Add an ANSI terminal boot menu command. 233 234config CMD_DTIMG 235 bool "dtimg" 236 select OF_LIBFDT_OVERLAY 237 help 238 Android DTB/DTBO image manipulation commands. Read dtb/dtbo files from 239 image into RAM, dump image structure information, etc. Those dtb/dtbo 240 files should be merged in one dtb further, which needs to be passed to 241 the kernel, as part of a boot process. 242 243config CMD_ELF 244 bool "bootelf, bootvx" 245 default y 246 help 247 Boot an ELF/vxWorks image from the memory. 248 249config CMD_FDT 250 bool "Flattened Device Tree utility commands" 251 default y 252 depends on OF_LIBFDT 253 help 254 Do FDT related setup before booting into the Operating System. 255 256config CMD_GO 257 bool "go" 258 default y 259 help 260 Start an application at a given address. 261 262config CMD_RUN 263 bool "run" 264 default y 265 help 266 Run the command in the given environment variable. 267 268config CMD_IMI 269 bool "iminfo" 270 default y 271 help 272 Print header information for application image. 273 274config CMD_IMLS 275 bool "imls" 276 default y 277 help 278 List all images found in flash 279 280config CMD_XIMG 281 bool "imxtract" 282 default y 283 help 284 Extract a part of a multi-image. 285 286config CMD_POWEROFF 287 bool "poweroff" 288 help 289 Poweroff/Shutdown the system 290 291config CMD_SPL 292 bool "spl export - Export boot information for Falcon boot" 293 depends on SPL 294 help 295 Falcon mode allows booting directly from SPL into an Operating 296 System such as Linux, thus skipping U-Boot proper. See 297 doc/README.falcon for full information about how to use this 298 command. 299 300config CMD_SPL_NAND_OFS 301 hex "Offset of OS command line args for Falcon-mode NAND boot" 302 depends on CMD_SPL 303 default 0 304 help 305 This provides the offset of the command line arguments for Linux 306 when booting from NAND in Falcon mode. See doc/README.falcon 307 for full information about how to use this option (and also see 308 board/gateworks/gw_ventana/README for an example). 309 310config CMD_SPL_WRITE_SIZE 311 hex "Size of argument area" 312 depends on CMD_SPL 313 default 0x2000 314 help 315 This provides the size of the command-line argument area in NAND 316 flash used by Falcon-mode boot. See the documentation until CMD_SPL 317 for detail. 318 319config CMD_THOR_DOWNLOAD 320 bool "thor - TIZEN 'thor' download" 321 help 322 Implements the 'thor' download protocol. This is a way of 323 downloading a software update over USB from an attached host. 324 There is no documentation about this within the U-Boot source code 325 but you should be able to find something on the interwebs. 326 327config CMD_ZBOOT 328 bool "zboot - x86 boot command" 329 help 330 With x86 machines it is common to boot a bzImage file which 331 contains both a kernel and a setup.bin file. The latter includes 332 configuration information from the dark ages which x86 boards still 333 need to pick things out of. 334 335 Consider using FIT in preference to this since it supports directly 336 booting both 32- and 64-bit kernels, as well as secure boot. 337 Documentation is available in doc/uImage.FIT/x86-fit-boot.txt 338 339endmenu 340 341menu "Environment commands" 342 343config CMD_ASKENV 344 bool "ask for env variable" 345 help 346 Ask for environment variable 347 348config CMD_EXPORTENV 349 bool "env export" 350 default y 351 help 352 Export environments. 353 354config CMD_IMPORTENV 355 bool "env import" 356 default y 357 help 358 Import environments. 359 360config CMD_EDITENV 361 bool "editenv" 362 default y 363 help 364 Edit environment variable. 365 366config CMD_GREPENV 367 bool "search env" 368 help 369 Allow for searching environment variables 370 371config CMD_SAVEENV 372 bool "saveenv" 373 default y 374 help 375 Save all environment variables into the compiled-in persistent 376 storage. 377 378config CMD_ENV_EXISTS 379 bool "env exists" 380 default y 381 help 382 Check if a variable is defined in the environment for use in 383 shell scripting. 384 385config CMD_ENV_CALLBACK 386 bool "env callbacks - print callbacks and their associated variables" 387 help 388 Some environment variable have callbacks defined by 389 U_BOOT_ENV_CALLBACK. These are called when the variable changes. 390 For example changing "baudrate" adjust the serial baud rate. This 391 command lists the currently defined callbacks. 392 393config CMD_ENV_FLAGS 394 bool "env flags -print variables that have non-default flags" 395 help 396 Some environment variables have special flags that control their 397 behaviour. For example, serial# can only be written once and cannot 398 be deleted. This command shows the variables that have special 399 flags. 400 401endmenu 402 403menu "Memory commands" 404 405config CMD_CRC32 406 bool "crc32" 407 select HASH 408 default y 409 help 410 Compute CRC32. 411 412config CRC32_VERIFY 413 bool "crc32 -v" 414 depends on CMD_CRC32 415 help 416 Add -v option to verify data against a crc32 checksum. 417 418config CMD_EEPROM 419 bool "eeprom - EEPROM subsystem" 420 help 421 (deprecated, needs conversion to driver model) 422 Provides commands to read and write EEPROM (Electrically Erasable 423 Programmable Read Only Memory) chips that are connected over an 424 I2C bus. 425 426config CMD_EEPROM_LAYOUT 427 bool "Enable layout-aware eeprom commands" 428 depends on CMD_EEPROM 429 help 430 (deprecated, needs conversion to driver model) 431 When enabled, additional eeprom sub-commands become available. 432 433 eeprom print - prints the contents of the eeprom in a human-readable 434 way (eeprom layout fields, and data formatted to be fit for human 435 consumption). 436 437 eeprom update - allows user to update eeprom fields by specifying 438 the field name, and providing the new data in a human readable format 439 (same format as displayed by the eeprom print command). 440 441 Both commands can either auto detect the layout, or be told which 442 layout to use. 443 444 Feature API: 445 __weak int parse_layout_version(char *str) 446 - override to provide your own layout name parsing 447 __weak void __eeprom_layout_assign(struct eeprom_layout *layout, 448 int layout_version); 449 - override to setup the layout metadata based on the version 450 __weak int eeprom_layout_detect(unsigned char *data) 451 - override to provide your own algorithm for detecting layout 452 version 453 eeprom_field.c 454 - contains various printing and updating functions for common 455 types of eeprom fields. Can be used for defining 456 custom layouts. 457 458config EEPROM_LAYOUT_HELP_STRING 459 string "Tells user what layout names are supported" 460 depends on CMD_EEPROM_LAYOUT 461 default "<not defined>" 462 help 463 Help printed with the LAYOUT VERSIONS part of the 'eeprom' 464 command's help. 465 466config LOOPW 467 bool "loopw" 468 help 469 Infinite write loop on address range 470 471config CMD_MD5SUM 472 bool "md5sum" 473 default n 474 select MD5 475 help 476 Compute MD5 checksum. 477 478config MD5SUM_VERIFY 479 bool "md5sum -v" 480 default n 481 depends on CMD_MD5SUM 482 help 483 Add -v option to verify data against an MD5 checksum. 484 485config CMD_MEMINFO 486 bool "meminfo" 487 help 488 Display memory information. 489 490config CMD_MEMORY 491 bool "md, mm, nm, mw, cp, cmp, base, loop" 492 default y 493 help 494 Memory commands. 495 md - memory display 496 mm - memory modify (auto-incrementing address) 497 nm - memory modify (constant address) 498 mw - memory write (fill) 499 cp - memory copy 500 cmp - memory compare 501 base - print or set address offset 502 loop - initialize loop on address range 503 504config CMD_MEMTEST 505 bool "memtest" 506 help 507 Simple RAM read/write test. 508 509config CMD_MX_CYCLIC 510 bool "mdc, mwc" 511 help 512 mdc - memory display cyclic 513 mwc - memory write cyclic 514 515config CMD_SHA1SUM 516 bool "sha1sum" 517 select SHA1 518 help 519 Compute SHA1 checksum. 520 521config SHA1SUM_VERIFY 522 bool "sha1sum -v" 523 depends on CMD_SHA1SUM 524 help 525 Add -v option to verify data against a SHA1 checksum. 526 527config CMD_STRINGS 528 bool "strings - display strings in memory" 529 help 530 This works similarly to the Unix 'strings' command except that it 531 works with a memory range. String of printable characters found 532 within the range are displayed. The minimum number of characters 533 for a sequence to be considered a string can be provided. 534 535config CMD_CRYPTO 536 bool "crypto test" 537 depends on DM_CRYPTO 538 select SHA1 539 select SHA256 540 select SHA512 541 select MD5 542 help 543 Crypto test. 544 545endmenu 546 547menu "Compression commands" 548 549config CMD_LZMADEC 550 bool "lzmadec" 551 default y if CMD_BOOTI 552 select LZMA 553 help 554 Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm) 555 image from memory. 556 557config CMD_UNZIP 558 bool "unzip" 559 default y if CMD_BOOTI 560 help 561 Uncompress a zip-compressed memory region. 562 563config CMD_ZIP 564 bool "zip" 565 help 566 Compress a memory region with zlib deflate method. 567 568endmenu 569 570menu "Device access commands" 571 572config CMD_ARMFLASH 573 #depends on FLASH_CFI_DRIVER 574 bool "armflash" 575 help 576 ARM Ltd reference designs flash partition access 577 578config CMD_CLK 579 bool "clk - Show clock frequencies" 580 help 581 (deprecated) 582 Shows clock frequences by calling a sock_clk_dump() hook function. 583 This is depreated in favour of using the CLK uclass and accessing 584 clock values from associated drivers. However currently no command 585 exists for this. 586 587config CMD_DEMO 588 bool "demo - Demonstration commands for driver model" 589 depends on DM 590 help 591 Provides a 'demo' command which can be used to play around with 592 driver model. To use this properly you will need to enable one or 593 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE). 594 Otherwise you will always get an empty list of devices. The demo 595 devices are defined in the sandbox device tree, so the easiest 596 option is to use sandbox and pass the -d point to sandbox's 597 u-boot.dtb file. 598 599config CMD_DFU 600 bool "dfu" 601 select USB_FUNCTION_DFU 602 help 603 Enables the command "dfu" which is used to have U-Boot create a DFU 604 class device via USB. This command requires that the "dfu_alt_info" 605 environment variable be set and define the alt settings to expose to 606 the host. 607 608config CMD_DM 609 bool "dm - Access to driver model information" 610 depends on DM 611 default y 612 help 613 Provides access to driver model data structures and information, 614 such as a list of devices, list of uclasses and the state of each 615 device (e.g. activated). This is not required for operation, but 616 can be useful to see the state of driver model for debugging or 617 interest. 618 619config CMD_FDC 620 bool "fdcboot - Boot from floppy device" 621 help 622 The 'fdtboot' command allows booting an image from a floppy disk. 623 624config CMD_FLASH 625 bool "flinfo, erase, protect" 626 default y 627 help 628 NOR flash support. 629 flinfo - print FLASH memory information 630 erase - FLASH memory 631 protect - enable or disable FLASH write protection 632 633config CMD_FPGA 634 bool "fpga" 635 default y 636 help 637 FPGA support. 638 639config CMD_FPGA_LOADBP 640 bool "fpga loadbp - load partial bitstream (Xilinx only)" 641 depends on CMD_FPGA 642 help 643 Supports loading an FPGA device from a bitstream buffer containing 644 a partial bitstream. 645 646config CMD_FPGA_LOADFS 647 bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)" 648 depends on CMD_FPGA 649 help 650 Supports loading an FPGA device from a FAT filesystem. 651 652config CMD_FPGA_LOADMK 653 bool "fpga loadmk - load bitstream from image" 654 depends on CMD_FPGA 655 help 656 Supports loading an FPGA device from a image generated by mkimage. 657 658config CMD_FPGA_LOADP 659 bool "fpga loadp - load partial bitstream" 660 depends on CMD_FPGA 661 help 662 Supports loading an FPGA device from a bitstream buffer containing 663 a partial bitstream. 664 665config CMD_FPGAD 666 bool "fpgad - dump FPGA registers" 667 help 668 (legacy, needs conversion to driver model) 669 Provides a way to dump FPGA registers by calling the board-specific 670 fpga_get_reg() function. This functions similarly to the 'md' 671 command. 672 673config CMD_FUSE 674 bool "fuse - support for the fuse subssystem" 675 help 676 (deprecated - needs conversion to driver model) 677 This allows reading, sensing, programming or overriding fuses 678 which control the behaviour of the device. The command uses the 679 fuse_...() API. 680 681config CMD_GPIO 682 bool "gpio" 683 help 684 GPIO support. 685 686config CMD_GPT 687 bool "GPT (GUID Partition Table) command" 688 select PARTITION_UUIDS 689 select EFI_PARTITION 690 imply RANDOM_UUID 691 help 692 Enable the 'gpt' command to ready and write GPT style partition 693 tables. 694 695config RANDOM_UUID 696 bool "GPT Random UUID generation" 697 help 698 Enable the generation of partitions with random UUIDs if none 699 are provided. 700 701config CMD_GPT_RENAME 702 bool "GPT partition renaming commands" 703 depends on CMD_GPT 704 help 705 Enables the 'gpt' command to interchange names on two GPT 706 partitions via the 'gpt swap' command or to rename single 707 partitions via the 'rename' command. 708 709config CMD_IDE 710 bool "ide - Support for IDE drivers" 711 select IDE 712 help 713 Provides an 'ide' command which allows accessing the IDE drive, 714 reseting the IDE interface, printing the partition table and 715 geting device info. It also enables the 'diskboot' command which 716 permits booting from an IDE drive. 717 718config CMD_IO 719 bool "io - Support for performing I/O accesses" 720 help 721 Provides an 'iod' command to display I/O space and an 'iow' command 722 to write values to the I/O space. This can be useful for manually 723 checking the state of devices during boot when debugging device 724 drivers, etc. 725 726config CMD_IOTRACE 727 bool "iotrace - Support for tracing I/O activity" 728 help 729 Provides an 'iotrace' command which supports recording I/O reads and 730 writes in a trace buffer in memory . It also maintains a checksum 731 of the trace records (even if space is exhausted) so that the 732 sequence of I/O accesses can be verified. 733 734 When debugging drivers it is useful to see what I/O accesses were 735 done and in what order. 736 737 Even if the individual accesses are of little interest it can be 738 useful to verify that the access pattern is consistent each time 739 an operation is performed. In this case a checksum can be used to 740 characterise the operation of a driver. The checksum can be compared 741 across different runs of the operation to verify that the driver is 742 working properly. 743 744 In particular, when performing major refactoring of the driver, where 745 the access pattern should not change, the checksum provides assurance 746 that the refactoring work has not broken the driver. 747 748 This works by sneaking into the io.h heder for an architecture and 749 redirecting I/O accesses through iotrace's tracing mechanism. 750 751 For now no commands are provided to examine the trace buffer. The 752 format is fairly simple, so 'md' is a reasonable substitute. 753 754 Note: The checksum feature is only useful for I/O regions where the 755 contents do not change outside of software control. Where this is not 756 suitable you can fall back to manually comparing the addresses. It 757 might be useful to enhance tracing to only checksum the accesses and 758 not the data read/written. 759 760config CMD_I2C 761 bool "i2c" 762 help 763 I2C support. 764 765config CMD_LOADB 766 bool "loadb" 767 default y 768 help 769 Load a binary file over serial line. 770 771config CMD_LOADS 772 bool "loads" 773 default y 774 help 775 Load an S-Record file over serial line 776 777config CMD_LOAD_ANDROID 778 bool "load_android" 779 default n 780 depends on ANDROID_BOOT_IMAGE 781 help 782 Load an Android Boot image from storage. The Android Boot images 783 define the size and kernel address on the header, which are used by 784 this command. 785 786config CMD_BOOT_ANDROID 787 bool "boot_android" 788 default n 789 depends on ANDROID_BOOTLOADER 790 help 791 Performs the Android Bootloader boot flow, loading the appropriate 792 Android image (normal kernel, recovery kernel or "bootloader" mode) 793 and booting it. The boot mode is determined by the contents of the 794 Android Bootloader Message. 795 796config CMD_ANDROID_AB_SELECT 797 bool "android_ab_select" 798 default n 799 depends on ANDROID_AB 800 help 801 On Android devices with more than one boot slot (multiple copies of 802 the kernel and system images) this provides a command to select which 803 slot should be used to boot from and register the boot attempt. This 804 is used by the new A/B update model where one slot is updated in the 805 background while running from the other slot. 806 807config CMD_BOOT_ROCKCHIP 808 bool "boot_rockchip" 809 default n 810 depends on RKIMG_BOOTLOADER 811 help 812 Performs the Rockchip Bootloader boot flow, loading the appropriate 813 Rockchip image (normal kernel, boot, resource and revocery) 814 and booting it. The boot mode is determined by the contents of the 815 Rockchip bootloader helper. 816 817config CMD_MMC 818 bool "mmc" 819 help 820 MMC memory mapped support. 821 822config CMD_MTD 823 bool "mtd" 824 select MTD_PARTITIONS 825 help 826 MTD commands support. 827 828config CMD_NAND 829 bool "nand" 830 default y if NAND_SUNXI 831 help 832 NAND support. 833 834if CMD_NAND 835config CMD_NAND_TRIMFFS 836 bool "nand write.trimffs" 837 default y if ARCH_SUNXI 838 help 839 Allows one to skip empty pages when flashing something on a NAND. 840 841config CMD_NAND_LOCK_UNLOCK 842 bool "nand lock/unlock" 843 help 844 NAND locking support. 845 846config CMD_NAND_TORTURE 847 bool "nand torture" 848 help 849 NAND torture support. 850 851endif # CMD_NAND 852 853config CMD_NVME 854 bool "nvme" 855 depends on NVME 856 default y if NVME 857 help 858 NVM Express device support 859 860config CMD_MMC_SPI 861 bool "mmc_spi - Set up MMC SPI device" 862 help 863 Provides a way to set up an MMC (Multimedia Card) SPI (Serial 864 Peripheral Interface) device. The device provides a means of 865 accessing an MMC device via SPI using a single data line, limited 866 to 20MHz. It is useful since it reduces the amount of protocol code 867 required. 868 869config CMD_ONENAND 870 bool "onenand - access to onenand device" 871 help 872 OneNAND is a brand of NAND ('Not AND' gate) flash which provides 873 various useful features. This command allows reading, writing, 874 and erasing blocks. It allso provides a way to show and change 875 bad blocks, and test the device. 876 877config CMD_PART 878 bool "part" 879 select PARTITION_UUIDS 880 help 881 Read and display information about the partition table on 882 various media. 883 884config CMD_PCI 885 bool "pci - Access PCI devices" 886 help 887 Provide access to PCI (Peripheral Interconnect Bus), a type of bus 888 used on some devices to allow the CPU to communicate with its 889 peripherals. Sub-commands allow bus enumeration, displaying and 890 changing configuration space and a few other features. 891 892config CMD_PCMCIA 893 bool "pinit - Set up PCMCIA device" 894 help 895 Provides a means to initialise a PCMCIA (Personal Computer Memory 896 Card International Association) device. This is an old standard from 897 about 1990. These devices are typically removable memory or network 898 cards using a standard 68-pin connector. 899 900config CMD_READ 901 bool "read - Read binary data from a partition" 902 help 903 Provides low-level access to the data in a partition. 904 905config CMD_REMOTEPROC 906 bool "remoteproc" 907 depends on REMOTEPROC 908 help 909 Support for Remote Processor control 910 911config CMD_ROCKUSB 912 bool "rockusb - Command to upgrade Rockchip device" 913 depends on USB_GADGET 914 help 915 Rockusb command provides a way to upgrade firmware for 916 Rockchip SoC based devices, its design make use of USB 917 Bulk-Only Transport based on UMS framework. 918 919config CMD_RKNAND 920 bool "rknand" 921 depends on (RKNAND || RKNANDC_NAND) 922 default y if (RKNAND || RKNANDC_NAND) 923 help 924 Rockchip NAND FLASH device support 925 926config CMD_RKSFC 927 bool "rksfc" 928 depends on (RKSFC_NOR || RKSFC_NAND) 929 default y if (RKSFC_NOR || RKSFC_NAND) 930 help 931 Rockchip SFC device support 932 933config CMD_RK_SECURE_STORAGE 934 bool "dump rockchip efuse/otp content" 935 help 936 Dump the data which is written in OTP or efuse. 937 938config CMD_SATA 939 bool "sata - Access SATA subsystem" 940 select SATA 941 help 942 SATA (Serial Advanced Technology Attachment) is a serial bus 943 standard for connecting to hard drives and other storage devices. 944 This command provides information about attached devices and allows 945 reading, writing and other operations. 946 947 SATA replaces PATA (originally just ATA), which stands for Parallel AT 948 Attachment, where AT refers to an IBM AT (Advanced Technology) 949 computer released in 1984. 950 951config CMD_SAVES 952 bool "saves - Save a file over serial in S-Record format" 953 help 954 Provides a way to save a binary file using the Motorola S-Record 955 format over the serial line. 956 957config CMD_SDRAM 958 bool "sdram - Print SDRAM configuration information" 959 help 960 Provides information about attached SDRAM. This assumed that the 961 SDRAM has an EEPROM with information that can be read using the 962 I2C bus. This is only available on some boards. 963 964config CMD_SF 965 bool "sf" 966 help 967 SPI Flash support 968 969config CMD_SF_TEST 970 bool "sf test - Allow testing of SPI flash" 971 help 972 Provides a way to test that SPI flash is working correctly. The 973 test is destructive, in that an area of SPI flash must be provided 974 for the test to use. Performance information is also provided, 975 measuring the performance of reading, writing and erasing in 976 Mbps (Million Bits Per Second). This value should approximately 977 equal the SPI bus speed for a single-bit-wide SPI bus, assuming 978 everything is working properly. 979 980config CMD_SPI 981 bool "sspi" 982 help 983 SPI utility command. 984 985config CMD_TSI148 986 bool "tsi148 - Command to access tsi148 device" 987 help 988 This provides various sub-commands to initialise and configure the 989 Turndra tsi148 device. See the command help for full details. 990 991config CMD_UNIVERSE 992 bool "universe - Command to set up the Turndra Universe controller" 993 help 994 This allows setting up the VMEbus provided by this controller. 995 See the command help for full details. 996 997config CMD_USB 998 bool "usb" 999 help 1000 USB support. 1001 1002config CMD_USB_SDP 1003 bool "sdp" 1004 select USB_FUNCTION_SDP 1005 help 1006 Enables the command "sdp" which is used to have U-Boot emulating the 1007 Serial Download Protocol (SDP) via USB. 1008 1009config CMD_USB_MASS_STORAGE 1010 bool "UMS usb mass storage" 1011 help 1012 USB mass storage support 1013 1014endmenu 1015 1016 1017menu "Shell scripting commands" 1018 1019config CMD_ECHO 1020 bool "echo" 1021 default y 1022 help 1023 Echo args to console 1024 1025config CMD_ITEST 1026 bool "itest" 1027 default y 1028 help 1029 Return true/false on integer compare. 1030 1031config CMD_SOURCE 1032 bool "source" 1033 default y 1034 help 1035 Run script from memory 1036 1037config CMD_SETEXPR 1038 bool "setexpr" 1039 default y 1040 help 1041 Evaluate boolean and math expressions and store the result in an env 1042 variable. 1043 Also supports loading the value at a memory location into a variable. 1044 If CONFIG_REGEX is enabled, setexpr also supports a gsub function. 1045 1046endmenu 1047 1048menu "Network commands" 1049 1050config CMD_NET 1051 bool "bootp, tftpboot" 1052 select NET 1053 default y 1054 help 1055 Network commands. 1056 bootp - boot image via network using BOOTP/TFTP protocol 1057 tftpboot - boot image via network using TFTP protocol 1058 1059config CMD_TFTPPUT 1060 bool "tftp put" 1061 help 1062 TFTP put command, for uploading files to a server 1063 1064config CMD_TFTPSRV 1065 bool "tftpsrv" 1066 help 1067 Act as a TFTP server and boot the first received file 1068 1069config CMD_RARP 1070 bool "rarpboot" 1071 help 1072 Boot image via network using RARP/TFTP protocol 1073 1074config CMD_DHCP 1075 bool "dhcp" 1076 help 1077 Boot image via network using DHCP/TFTP protocol 1078 1079config CMD_PXE 1080 bool "pxe" 1081 select MENU 1082 help 1083 Boot image via network using PXE protocol 1084 1085config CMD_NFS 1086 bool "nfs" 1087 default y 1088 help 1089 Boot image via network using NFS protocol. 1090 1091config CMD_MII 1092 bool "mii" 1093 help 1094 Enable MII utility commands. 1095 1096config CMD_PING 1097 bool "ping" 1098 help 1099 Send ICMP ECHO_REQUEST to network host 1100 1101config CMD_CDP 1102 bool "cdp" 1103 help 1104 Perform CDP network configuration 1105 1106config CMD_SNTP 1107 bool "sntp" 1108 help 1109 Synchronize RTC via network 1110 1111config CMD_DNS 1112 bool "dns" 1113 help 1114 Lookup the IP of a hostname 1115 1116config CMD_LINK_LOCAL 1117 bool "linklocal" 1118 help 1119 Acquire a network IP address using the link-local protocol 1120 1121config CMD_ETHSW 1122 bool "ethsw" 1123 help 1124 Allow control of L2 Ethernet switch commands. These are supported 1125 by the vsc9953 Ethernet driver at present. Sub-commands allow 1126 operations such as enabling / disabling a port and 1127 viewing/maintaining the filtering database (FDB) 1128 1129endmenu 1130 1131config CMD_MEMTESTER 1132 bool "Enable memtester for ddr" 1133 help 1134 This enables memtester for ddr. 1135 1136config CMD_DDR_TEST_TOOL 1137 bool "Enable ddr test tool" 1138 help 1139 This enable ddr test tool code. 1140 1141menu "Misc commands" 1142 1143config CMD_BMP 1144 bool "Enable 'bmp' command" 1145 depends on LCD || DM_VIDEO || VIDEO 1146 help 1147 This provides a way to obtain information about a BMP-format iamge 1148 and to display it. BMP (which presumably stands for BitMaP) is a 1149 file format defined by Microsoft which supports images of various 1150 depths, formats and compression methods. Headers on the file 1151 determine the formats used. This command can be used by first loading 1152 the image into RAM, then using this command to look at it or display 1153 it. 1154 1155config CMD_BSP 1156 bool "Enable board-specific commands" 1157 help 1158 (deprecated: instead, please define a Kconfig option for each command) 1159 1160 Some boards have board-specific commands which are only enabled 1161 during developemnt and need to be turned off for production. This 1162 option provides a way to control this. The commands that are enabled 1163 vary depending on the board. 1164 1165config CMD_BKOPS_ENABLE 1166 bool "mmc bkops enable" 1167 depends on CMD_MMC 1168 default n 1169 help 1170 Enable command for setting manual background operations handshake 1171 on a eMMC device. The feature is optionally available on eMMC devices 1172 conforming to standard >= 4.41. 1173 1174config CMD_BLOCK_CACHE 1175 bool "blkcache - control and stats for block cache" 1176 depends on BLOCK_CACHE 1177 default y if BLOCK_CACHE 1178 help 1179 Enable the blkcache command, which can be used to control the 1180 operation of the cache functions. 1181 This is most useful when fine-tuning the operation of the cache 1182 during development, but also allows the cache to be disabled when 1183 it might hurt performance (e.g. when using the ums command). 1184 1185config CMD_CACHE 1186 bool "icache or dcache" 1187 help 1188 Enable the "icache" and "dcache" commands 1189 1190config CMD_DISPLAY 1191 bool "Enable the 'display' command, for character displays" 1192 help 1193 (this needs porting to driver model) 1194 This enables the 'display' command which allows a string to be 1195 displayed on a simple board-specific display. Implement 1196 display_putc() to use it. 1197 1198config CMD_LED 1199 bool "led" 1200 default y if LED 1201 help 1202 Enable the 'led' command which allows for control of LEDs supported 1203 by the board. The LEDs can be listed with 'led list' and controlled 1204 with led on/off/togle/blink. Any LED drivers can be controlled with 1205 this command, e.g. led_gpio. 1206 1207config CMD_DATE 1208 bool "date" 1209 default y if DM_RTC 1210 help 1211 Enable the 'date' command for getting/setting the time/date in RTC 1212 devices. 1213 1214config CMD_TIME 1215 bool "time" 1216 help 1217 Run commands and summarize execution time. 1218 1219config CMD_GETTIME 1220 bool "gettime - read elapsed time" 1221 help 1222 Enable the 'gettime' command which reads the elapsed time since 1223 U-Boot started running. This shows the time in seconds and 1224 milliseconds. See also the 'bootstage' command which provides more 1225 flexibility for boot timing. 1226 1227# TODO: rename to CMD_SLEEP 1228config CMD_MISC 1229 bool "sleep" 1230 default y 1231 help 1232 Delay execution for some time 1233 1234config CMD_TIMER 1235 bool "timer" 1236 help 1237 Access the system timer. 1238 1239config CMD_SOUND 1240 bool "sound" 1241 depends on SOUND 1242 help 1243 This provides basic access to the U-Boot's sound support. The main 1244 feature is to play a beep. 1245 1246 sound init - set up sound system 1247 sound play - play a sound 1248 1249config CMD_QFW 1250 bool "qfw" 1251 select QFW 1252 help 1253 This provides access to the QEMU firmware interface. The main 1254 feature is to allow easy loading of files passed to qemu-system 1255 via -kernel / -initrd 1256 1257source "cmd/mvebu/Kconfig" 1258 1259config CMD_TERMINAL 1260 bool "terminal - provides a way to attach a serial terminal" 1261 help 1262 Provides a 'cu'-like serial terminal command. This can be used to 1263 access other serial ports from the system console. The terminal 1264 is very simple with no special processing of characters. As with 1265 cu, you can press ~. (tilde followed by period) to exit. 1266 1267config CMD_UUID 1268 bool "uuid, guid - generation of unique IDs" 1269 help 1270 This enables two commands: 1271 1272 uuid - generate random Universally Unique Identifier 1273 guid - generate Globally Unique Identifier based on random UUID 1274 1275 The two commands are very similar except for the endianness of the 1276 output. 1277 1278endmenu 1279 1280config CMD_BOOTSTAGE 1281 bool "Enable the 'bootstage' command" 1282 depends on BOOTSTAGE 1283 help 1284 Add a 'bootstage' command which supports printing a report 1285 and un/stashing of bootstage data. 1286 1287menu "Power commands" 1288config CMD_PMIC 1289 bool "Enable Driver Model PMIC command" 1290 depends on DM_PMIC 1291 help 1292 This is the pmic command, based on a driver model pmic's API. 1293 Command features are unchanged: 1294 - list - list pmic devices 1295 - pmic dev <id> - show or [set] operating pmic device (NEW) 1296 - pmic dump - dump registers 1297 - pmic read address - read byte of register at address 1298 - pmic write address - write byte to register at address 1299 The only one change for this command is 'dev' subcommand. 1300 1301config CMD_REGULATOR 1302 bool "Enable Driver Model REGULATOR command" 1303 depends on DM_REGULATOR 1304 help 1305 This command is based on driver model regulator's API. 1306 User interface features: 1307 - list - list regulator devices 1308 - regulator dev <id> - show or [set] operating regulator device 1309 - regulator info - print constraints info 1310 - regulator status - print operating status 1311 - regulator value <val] <-f> - print/[set] voltage value [uV] 1312 - regulator current <val> - print/[set] current value [uA] 1313 - regulator mode <id> - print/[set] operating mode id 1314 - regulator enable - enable the regulator output 1315 - regulator disable - disable the regulator output 1316 1317 The '-f' (force) option can be used for set the value which exceeds 1318 the limits, which are found in device-tree and are kept in regulator's 1319 uclass platdata structure. 1320 1321config CMD_CHARGE_DISPLAY 1322 bool "Enable Driver Model Charge Display command" 1323 depends on DM_CHARGE_DISPLAY 1324 default y 1325 help 1326 Support U-Boot charge display. 1327 1328config CMD_DVFS 1329 bool "Enable Driver Model DVFS command" 1330 depends on DM_DVFS 1331 default y 1332 help 1333 Support dvfs policy apply API 1334 User interface features: 1335 - dvfs - apply dvfs policy once 1336 - dvfs repeat - repeat apply dvfs policy until achieve the target temperature 1337 1338endmenu 1339 1340menu "Security commands" 1341config CMD_AES 1342 bool "Enable the 'aes' command" 1343 select AES 1344 help 1345 This provides a means to encrypt and decrypt data using the AES 1346 (Advanced Encryption Standard). This algorithm uses a symetric key 1347 and is widely used as a streaming cipher. Different key lengths are 1348 supported by the algorithm but this command only supports 128 bits 1349 at present. 1350 1351config CMD_BLOB 1352 bool "Enable the 'blob' command" 1353 help 1354 This is used with the Freescale secure boot mechanism. 1355 1356 Freescale's SEC block has built-in Blob Protocol which provides 1357 a method for protecting user-defined data across system power 1358 cycles. SEC block protects data in a data structure called a Blob, 1359 which provides both confidentiality and integrity protection. 1360 1361 Encapsulating data as a blob 1362 Each time that the Blob Protocol is used to protect data, a 1363 different randomly generated key is used to encrypt the data. 1364 This random key is itself encrypted using a key which is derived 1365 from SoC's non-volatile secret key and a 16 bit Key identifier. 1366 The resulting encrypted key along with encrypted data is called a 1367 blob. The non-volatile secure key is available for use only during 1368 secure boot. 1369 1370 During decapsulation, the reverse process is performed to get back 1371 the original data. 1372 1373 Sub-commands: 1374 blob enc - encapsulating data as a cryptgraphic blob 1375 blob dec - decapsulating cryptgraphic blob to get the data 1376 1377 Syntax: 1378 1379 blob enc src dst len km 1380 1381 Encapsulate and create blob of data $len bytes long 1382 at address $src and store the result at address $dst. 1383 $km is the 16 byte key modifier is also required for 1384 generation/use as key for cryptographic operation. Key 1385 modifier should be 16 byte long. 1386 1387 blob dec src dst len km 1388 1389 Decapsulate the blob of data at address $src and 1390 store result of $len byte at addr $dst. 1391 $km is the 16 byte key modifier is also required for 1392 generation/use as key for cryptographic operation. Key 1393 modifier should be 16 byte long. 1394 1395config CMD_HASH 1396 bool "Support 'hash' command" 1397 select HASH 1398 help 1399 This provides a way to hash data in memory using various supported 1400 algorithms (such as SHA1, MD5, CRC32). The computed digest can be 1401 saved to memory or to an environment variable. It is also possible 1402 to verify a hash against data in memory. 1403 1404config HASH_VERIFY 1405 bool "hash -v" 1406 depends on CMD_HASH 1407 help 1408 Add -v option to verify data against a hash. 1409 1410config CMD_TPM 1411 bool "Enable the 'tpm' command" 1412 depends on TPM 1413 help 1414 This provides a means to talk to a TPM from the command line. A wide 1415 range of commands if provided - see 'tpm help' for details. The 1416 command requires a suitable TPM on your board and the correct driver 1417 must be enabled. 1418 1419config CMD_TPM_TEST 1420 bool "Enable the 'tpm test' command" 1421 depends on CMD_TPM 1422 help 1423 This provides a a series of tests to confirm that the TPM is working 1424 correctly. The tests cover initialisation, non-volatile RAM, extend, 1425 global lock and checking that timing is within expectations. The 1426 tests pass correctly on Infineon TPMs but may need to be adjusted 1427 for other devices. 1428 1429endmenu 1430 1431menu "Firmware commands" 1432config CMD_CROS_EC 1433 bool "Enable crosec command" 1434 depends on CROS_EC 1435 default y 1436 help 1437 Enable command-line access to the Chrome OS EC (Embedded 1438 Controller). This provides the 'crosec' command which has 1439 a number of sub-commands for performing EC tasks such as 1440 updating its flash, accessing a small saved context area 1441 and talking to the I2C bus behind the EC (if there is one). 1442endmenu 1443 1444menu "Filesystem commands" 1445config CMD_CBFS 1446 bool "Enable the 'cbfs' command" 1447 depends on FS_CBFS 1448 help 1449 Define this to enable support for reading from a Coreboot 1450 filesystem. This is a ROM-based filesystem used for accessing files 1451 on systems that use coreboot as the first boot-loader and then load 1452 U-Boot to actually boot the Operating System. Available commands are 1453 cbfsinit, cbfsinfo, cbfsls and cbfsload. 1454 1455config CMD_CRAMFS 1456 bool "Enable the 'cramfs' command" 1457 depends on FS_CRAMFS 1458 help 1459 This provides commands for dealing with CRAMFS (Compressed ROM 1460 filesystem). CRAMFS is useful when space is tight since files are 1461 compressed. Two commands are provided: 1462 1463 cramfsls - lists files in a cramfs image 1464 cramfsload - loads a file from a cramfs image 1465 1466config CMD_EXT2 1467 bool "ext2 command support" 1468 help 1469 Enables EXT2 FS command 1470 1471config CMD_EXT4 1472 bool "ext4 command support" 1473 help 1474 Enables EXT4 FS command 1475 1476config CMD_EXT4_WRITE 1477 depends on CMD_EXT4 1478 bool "ext4 write command support" 1479 help 1480 Enables EXT4 FS write command 1481 1482config CMD_FAT 1483 bool "FAT command support" 1484 select FS_FAT 1485 help 1486 Support for the FAT fs 1487 1488config CMD_FS_GENERIC 1489 bool "filesystem commands" 1490 help 1491 Enables filesystem commands (e.g. load, ls) that work for multiple 1492 fs types. 1493 1494config CMD_FS_UUID 1495 bool "fsuuid command" 1496 help 1497 Enables fsuuid command for filesystem UUID. 1498 1499config CMD_JFFS2 1500 bool "jffs2 command" 1501 select FS_JFFS2 1502 help 1503 Enables commands to support the JFFS2 (Journalling Flash File System 1504 version 2) filesystem. This enables fsload, ls and fsinfo which 1505 provide the ability to load files, list directories and obtain 1506 filesystem information. 1507 1508config CMD_MTDPARTS 1509 bool "MTD partition support" 1510 select MTD_DEVICE if (CMD_NAND || NAND) 1511 help 1512 MTD partition support 1513 1514config CMD_MTD 1515 bool "MTD support" 1516 help 1517 MTD support 1518 1519config CMD_MTD_BLK 1520 bool "MTD block support" 1521 help 1522 MTD block support 1523 1524config MTDIDS_DEFAULT 1525 string "Default MTD IDs" 1526 depends on CMD_MTD || CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1527 help 1528 Defines a default MTD ID 1529 1530config MTDPARTS_DEFAULT 1531 string "Default MTD partition scheme" 1532 depends on CMD_MTD || CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1533 help 1534 Defines a default MTD partitioning scheme in the Linux MTD command 1535 line partitions format 1536 1537config CMD_MTDPARTS_SPREAD 1538 bool "Padd partition size to take account of bad blocks" 1539 depends on CMD_MTDPARTS 1540 help 1541 This enables the 'spread' sub-command of the mtdparts command. 1542 This command will modify the existing mtdparts variable by increasing 1543 the size of the partitions such that 1) each partition's net size is 1544 at least as large as the size specified in the mtdparts variable and 1545 2) each partition starts on a good block. 1546 1547config CMD_REISER 1548 bool "reiser - Access to reiserfs filesystems" 1549 help 1550 This provides two commands which operate on a resierfs filesystem, 1551 commonly used some years ago: 1552 1553 reiserls - list files 1554 reiserload - load a file 1555 1556config CMD_SCSI 1557 bool "scsi - Access to SCSI devices" 1558 default y if SCSI 1559 help 1560 This provides a 'scsi' command which provides access to SCSI (Small 1561 Computer System Interface) devices. The command provides a way to 1562 scan the bus, reset the bus, read and write data and get information 1563 about devices. 1564 1565config CMD_YAFFS2 1566 bool "yaffs2 - Access of YAFFS2 filesystem" 1567 depends on YAFFS2 1568 default y 1569 help 1570 This provides commands for accessing a YAFFS2 filesystem. Yet 1571 Another Flash Filesystem 2 is a filesystem designed specifically 1572 for NAND flash. It incorporates bad-block management and ensures 1573 that device writes are sequential regardless of filesystem 1574 activity. 1575 1576config CMD_ZFS 1577 bool "zfs - Access of ZFS filesystem" 1578 help 1579 This provides commands to accessing a ZFS filesystem, commonly used 1580 on Solaris systems. Two sub-commands are provided: 1581 1582 zfsls - list files in a directory 1583 zfsload - load a file 1584 1585 See doc/README.zfs for more details. 1586 1587endmenu 1588 1589menu "Debug commands" 1590 1591config CMD_BEDBUG 1592 bool "bedbug" 1593 help 1594 The bedbug (emBEDded deBUGger) command provides debugging features 1595 for some PowerPC processors. For details please see the 1596 docuemntation in doc/README.beddbug 1597 1598config CMD_DIAG 1599 bool "diag - Board diagnostics" 1600 help 1601 This command provides access to board diagnostic tests. These are 1602 called Power-on Self Tests (POST). The command allows listing of 1603 available tests and running either all the tests, or specific tests 1604 identified by name. 1605 1606config CMD_IRQ 1607 bool "irq - Show information about interrupts" 1608 depends on !ARM && !MIPS && !SH 1609 help 1610 This enables two commands: 1611 1612 interrupts - enable or disable interrupts 1613 irqinfo - print device-specific interrupt information 1614 1615config CMD_KGDB 1616 bool "kgdb - Allow debugging of U-Boot with gdb" 1617 help 1618 This enables a 'kgdb' command which allows gdb to connect to U-Boot 1619 over a serial link for debugging purposes. This allows 1620 single-stepping, inspecting variables, etc. This is supported only 1621 on PowerPC at present. 1622 1623config CMD_LOG 1624 bool "log - Generation, control and access to logging" 1625 help 1626 This provides access to logging features. It allows the output of 1627 log data to be controlled to a limited extent (setting up the default 1628 maximum log level for emitting of records). It also provides access 1629 to a command used for testing the log system. 1630 1631config CMD_TRACE 1632 bool "trace - Support tracing of function calls and timing" 1633 help 1634 Enables a command to control using of function tracing within 1635 U-Boot. This allows recording of call traces including timing 1636 information. The command can write data to memory for exporting 1637 for analsys (e.g. using bootchart). See doc/README.trace for full 1638 details. 1639 1640endmenu 1641 1642config CMD_UBI 1643 tristate "Enable UBI - Unsorted block images commands" 1644 select CRC32 1645 select MTD_UBI 1646 select CMD_MTDPARTS 1647 default y if NAND_SUNXI 1648 help 1649 UBI is a software layer above MTD layer which admits use of LVM-like 1650 logical volumes on top of MTD devices, hides some complexities of 1651 flash chips like wear and bad blocks and provides some other useful 1652 capabilities. Please, consult the MTD web site for more details 1653 (www.linux-mtd.infradead.org). Activate this option if you want 1654 to use U-Boot UBI commands. 1655 1656config CMD_UBIFS 1657 tristate "Enable UBIFS - Unsorted block images filesystem commands" 1658 depends on CMD_UBI 1659 select CRC32 1660 select LZO 1661 default y if CMD_UBI 1662 help 1663 UBIFS is a file system for flash devices which works on top of UBI. 1664 1665endmenu 1666