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 33config U_BOOT_CMD_ALWAYS 34 bool "Enable cmd with U_BOOT_CMD_ALWAYS() declared" 35 depends on !CMDLINE 36 help 37 This function is used to support some special U-Boot commands with 38 U_BOOT_CMD_ALWAYS() declared even when CONFIG_CMDLINE is disabled. 39 It reduces the image size and works with simple CLI. 40 41menu "Autoboot options" 42 43config AUTOBOOT 44 bool "Autoboot" 45 default y 46 help 47 This enables the autoboot. See doc/README.autoboot for detail. 48 49config AUTOBOOT_KEYED 50 bool "Stop autobooting via specific input key / string" 51 default n 52 help 53 This option enables stopping (aborting) of the automatic 54 boot feature only by issuing a specific input key or 55 string. If not enabled, any input key will abort the 56 U-Boot automatic booting process and bring the device 57 to the U-Boot prompt for user input. 58 59config AUTOBOOT_PROMPT 60 string "Autoboot stop prompt" 61 depends on AUTOBOOT_KEYED 62 default "Autoboot in %d seconds\\n" 63 help 64 This string is displayed before the boot delay selected by 65 CONFIG_BOOTDELAY starts. If it is not defined there is no 66 output indicating that autoboot is in progress. 67 68 Note that this define is used as the (only) argument to a 69 printf() call, so it may contain '%' format specifications, 70 provided that it also includes, sepearated by commas exactly 71 like in a printf statement, the required arguments. It is 72 the responsibility of the user to select only such arguments 73 that are valid in the given context. 74 75config AUTOBOOT_ENCRYPTION 76 bool "Enable encryption in autoboot stopping" 77 depends on AUTOBOOT_KEYED 78 default n 79 80config AUTOBOOT_DELAY_STR 81 string "Delay autobooting via specific input key / string" 82 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 83 help 84 This option delays the automatic boot feature by issuing 85 a specific input key or string. If CONFIG_AUTOBOOT_DELAY_STR 86 or the environment variable "bootdelaykey" is specified 87 and this string is received from console input before 88 autoboot starts booting, U-Boot gives a command prompt. The 89 U-Boot prompt will time out if CONFIG_BOOT_RETRY_TIME is 90 used, otherwise it never times out. 91 92config AUTOBOOT_STOP_STR 93 string "Stop autobooting via specific input key / string" 94 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 95 help 96 This option enables stopping (aborting) of the automatic 97 boot feature only by issuing a specific input key or 98 string. If CONFIG_AUTOBOOT_STOP_STR or the environment 99 variable "bootstopkey" is specified and this string is 100 received from console input before autoboot starts booting, 101 U-Boot gives a command prompt. The U-Boot prompt never 102 times out, even if CONFIG_BOOT_RETRY_TIME is used. 103 104config AUTOBOOT_KEYED_CTRLC 105 bool "Enable Ctrl-C autoboot interruption" 106 depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION 107 default n 108 help 109 This option allows for the boot sequence to be interrupted 110 by ctrl-c, in addition to the "bootdelaykey" and "bootstopkey". 111 Setting this variable provides an escape sequence from the 112 limited "password" strings. 113 114config AUTOBOOT_STOP_STR_SHA256 115 string "Stop autobooting via SHA256 encrypted password" 116 depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION 117 help 118 This option adds the feature to only stop the autobooting, 119 and therefore boot into the U-Boot prompt, when the input 120 string / password matches a values that is encypted via 121 a SHA256 hash and saved in the environment. 122 123endmenu 124 125source "cmd/fastboot/Kconfig" 126 127config BUILD_BIN2C 128 bool 129 130comment "Commands" 131 132menu "Info commands" 133 134config CMD_BDI 135 bool "bdinfo" 136 default y 137 help 138 Print board info 139 140config CMD_CONFIG 141 bool "config" 142 select BUILD_BIN2C 143 default SANDBOX 144 help 145 Print ".config" contents. 146 147 If this option is enabled, the ".config" file contents are embedded 148 in the U-Boot image and can be printed on the console by the "config" 149 command. This provides information of which options are enabled on 150 the running U-Boot. 151 152config CMD_CONSOLE 153 bool "coninfo" 154 default y 155 help 156 Print console devices and information. 157 158config CMD_CPU 159 bool "cpu" 160 help 161 Print information about available CPUs. This normally shows the 162 number of CPUs, type (e.g. manufacturer, architecture, product or 163 internal name) and clock frequency. Other information may be 164 available depending on the CPU driver. 165 166config CMD_LICENSE 167 bool "license" 168 select BUILD_BIN2C 169 help 170 Print GPL license text 171 172config CMD_REGINFO 173 bool "reginfo" 174 depends on PPC 175 help 176 Register dump 177 178endmenu 179 180menu "Boot commands" 181 182config CMD_BOOTD 183 bool "bootd" 184 default y 185 help 186 Run the command stored in the environment "bootcmd", i.e. 187 "bootd" does the same thing as "run bootcmd". 188 189config CMD_BOOTM 190 bool "bootm" 191 default y 192 help 193 Boot an application image from the memory. 194 195config CMD_BOOTZ 196 bool "bootz" 197 help 198 Boot the Linux zImage 199 200config CMD_BOOTI 201 bool "booti" 202 depends on ARM64 203 default y 204 help 205 Boot an AArch64 Linux Kernel image from memory. 206 207config CMD_BOOTEFI 208 bool "bootefi" 209 depends on EFI_LOADER 210 default y 211 help 212 Boot an EFI image from memory. 213 214config CMD_BOOTEFI_HELLO_COMPILE 215 bool "Compile a standard EFI hello world binary for testing" 216 depends on CMD_BOOTEFI && (ARM || X86) 217 default y 218 help 219 This compiles a standard EFI hello world application with U-Boot so 220 that it can be used with the test/py testing framework. This is useful 221 for testing that EFI is working at a basic level, and for bringing 222 up EFI support on a new architecture. 223 224 No additional space will be required in the resulting U-Boot binary 225 when this option is enabled. 226 227config CMD_BOOTEFI_HELLO 228 bool "Allow booting a standard EFI hello world for testing" 229 depends on CMD_BOOTEFI_HELLO_COMPILE 230 help 231 This adds a standard EFI hello world application to U-Boot so that 232 it can be used with the 'bootefi hello' command. This is useful 233 for testing that EFI is working at a basic level, and for bringing 234 up EFI support on a new architecture. 235 236config CMD_BOOTMENU 237 bool "bootmenu" 238 select MENU 239 help 240 Add an ANSI terminal boot menu command. 241 242config CMD_DTIMG 243 bool "dtimg" 244 select OF_LIBFDT_OVERLAY 245 help 246 Android DTB/DTBO image manipulation commands. Read dtb/dtbo files from 247 image into RAM, dump image structure information, etc. Those dtb/dtbo 248 files should be merged in one dtb further, which needs to be passed to 249 the kernel, as part of a boot process. 250 251config CMD_ELF 252 bool "bootelf, bootvx" 253 default y 254 help 255 Boot an ELF/vxWorks image from the memory. 256 257config CMD_FDT 258 bool "Flattened Device Tree utility commands" 259 default y 260 depends on OF_LIBFDT 261 help 262 Do FDT related setup before booting into the Operating System. 263 264config CMD_GO 265 bool "go" 266 default y 267 help 268 Start an application at a given address. 269 270config CMD_RUN 271 bool "run" 272 default y 273 help 274 Run the command in the given environment variable. 275 276config CMD_IMI 277 bool "iminfo" 278 default y 279 help 280 Print header information for application image. 281 282config CMD_IMLS 283 bool "imls" 284 default y 285 help 286 List all images found in flash 287 288config CMD_XIMG 289 bool "imxtract" 290 default y 291 help 292 Extract a part of a multi-image. 293 294config CMD_POWEROFF 295 bool "poweroff" 296 help 297 Poweroff/Shutdown the system 298 299config CMD_SPL 300 bool "spl export - Export boot information for Falcon boot" 301 depends on SPL 302 help 303 Falcon mode allows booting directly from SPL into an Operating 304 System such as Linux, thus skipping U-Boot proper. See 305 doc/README.falcon for full information about how to use this 306 command. 307 308config CMD_SPL_NAND_OFS 309 hex "Offset of OS command line args for Falcon-mode NAND boot" 310 depends on CMD_SPL 311 default 0 312 help 313 This provides the offset of the command line arguments for Linux 314 when booting from NAND in Falcon mode. See doc/README.falcon 315 for full information about how to use this option (and also see 316 board/gateworks/gw_ventana/README for an example). 317 318config CMD_SPL_WRITE_SIZE 319 hex "Size of argument area" 320 depends on CMD_SPL 321 default 0x2000 322 help 323 This provides the size of the command-line argument area in NAND 324 flash used by Falcon-mode boot. See the documentation until CMD_SPL 325 for detail. 326 327config CMD_THOR_DOWNLOAD 328 bool "thor - TIZEN 'thor' download" 329 help 330 Implements the 'thor' download protocol. This is a way of 331 downloading a software update over USB from an attached host. 332 There is no documentation about this within the U-Boot source code 333 but you should be able to find something on the interwebs. 334 335config CMD_ZBOOT 336 bool "zboot - x86 boot command" 337 help 338 With x86 machines it is common to boot a bzImage file which 339 contains both a kernel and a setup.bin file. The latter includes 340 configuration information from the dark ages which x86 boards still 341 need to pick things out of. 342 343 Consider using FIT in preference to this since it supports directly 344 booting both 32- and 64-bit kernels, as well as secure boot. 345 Documentation is available in doc/uImage.FIT/x86-fit-boot.txt 346 347endmenu 348 349menu "Environment commands" 350 351config CMD_ASKENV 352 bool "ask for env variable" 353 help 354 Ask for environment variable 355 356config CMD_EXPORTENV 357 bool "env export" 358 default y 359 help 360 Export environments. 361 362config CMD_IMPORTENV 363 bool "env import" 364 default y 365 help 366 Import environments. 367 368config CMD_EDITENV 369 bool "editenv" 370 default y 371 help 372 Edit environment variable. 373 374config CMD_GREPENV 375 bool "search env" 376 help 377 Allow for searching environment variables 378 379config CMD_SAVEENV 380 bool "saveenv" 381 default y 382 help 383 Save all environment variables into the compiled-in persistent 384 storage. 385 386config CMD_ENV_EXISTS 387 bool "env exists" 388 default y 389 help 390 Check if a variable is defined in the environment for use in 391 shell scripting. 392 393config CMD_ENV_CALLBACK 394 bool "env callbacks - print callbacks and their associated variables" 395 help 396 Some environment variable have callbacks defined by 397 U_BOOT_ENV_CALLBACK. These are called when the variable changes. 398 For example changing "baudrate" adjust the serial baud rate. This 399 command lists the currently defined callbacks. 400 401config CMD_ENV_FLAGS 402 bool "env flags -print variables that have non-default flags" 403 help 404 Some environment variables have special flags that control their 405 behaviour. For example, serial# can only be written once and cannot 406 be deleted. This command shows the variables that have special 407 flags. 408 409endmenu 410 411menu "Memory commands" 412 413config CMD_CRC32 414 bool "crc32" 415 select HASH 416 default y 417 help 418 Compute CRC32. 419 420config CRC32_VERIFY 421 bool "crc32 -v" 422 depends on CMD_CRC32 423 help 424 Add -v option to verify data against a crc32 checksum. 425 426config CMD_EEPROM 427 bool "eeprom - EEPROM subsystem" 428 help 429 (deprecated, needs conversion to driver model) 430 Provides commands to read and write EEPROM (Electrically Erasable 431 Programmable Read Only Memory) chips that are connected over an 432 I2C bus. 433 434config CMD_EEPROM_LAYOUT 435 bool "Enable layout-aware eeprom commands" 436 depends on CMD_EEPROM 437 help 438 (deprecated, needs conversion to driver model) 439 When enabled, additional eeprom sub-commands become available. 440 441 eeprom print - prints the contents of the eeprom in a human-readable 442 way (eeprom layout fields, and data formatted to be fit for human 443 consumption). 444 445 eeprom update - allows user to update eeprom fields by specifying 446 the field name, and providing the new data in a human readable format 447 (same format as displayed by the eeprom print command). 448 449 Both commands can either auto detect the layout, or be told which 450 layout to use. 451 452 Feature API: 453 __weak int parse_layout_version(char *str) 454 - override to provide your own layout name parsing 455 __weak void __eeprom_layout_assign(struct eeprom_layout *layout, 456 int layout_version); 457 - override to setup the layout metadata based on the version 458 __weak int eeprom_layout_detect(unsigned char *data) 459 - override to provide your own algorithm for detecting layout 460 version 461 eeprom_field.c 462 - contains various printing and updating functions for common 463 types of eeprom fields. Can be used for defining 464 custom layouts. 465 466config EEPROM_LAYOUT_HELP_STRING 467 string "Tells user what layout names are supported" 468 depends on CMD_EEPROM_LAYOUT 469 default "<not defined>" 470 help 471 Help printed with the LAYOUT VERSIONS part of the 'eeprom' 472 command's help. 473 474config LOOPW 475 bool "loopw" 476 help 477 Infinite write loop on address range 478 479config CMD_MD5SUM 480 bool "md5sum" 481 default n 482 select MD5 483 help 484 Compute MD5 checksum. 485 486config MD5SUM_VERIFY 487 bool "md5sum -v" 488 default n 489 depends on CMD_MD5SUM 490 help 491 Add -v option to verify data against an MD5 checksum. 492 493config CMD_MEMINFO 494 bool "meminfo" 495 help 496 Display memory information. 497 498config CMD_MEMORY 499 bool "md, mm, nm, mw, cp, cmp, base, loop" 500 default y 501 help 502 Memory commands. 503 md - memory display 504 mm - memory modify (auto-incrementing address) 505 nm - memory modify (constant address) 506 mw - memory write (fill) 507 cp - memory copy 508 cmp - memory compare 509 base - print or set address offset 510 loop - initialize loop on address range 511 512config CMD_MEMTEST 513 bool "memtest" 514 help 515 Simple RAM read/write test. 516 517config CMD_MX_CYCLIC 518 bool "mdc, mwc" 519 help 520 mdc - memory display cyclic 521 mwc - memory write cyclic 522 523config CMD_SHA1SUM 524 bool "sha1sum" 525 select SHA1 526 help 527 Compute SHA1 checksum. 528 529config SHA1SUM_VERIFY 530 bool "sha1sum -v" 531 depends on CMD_SHA1SUM 532 help 533 Add -v option to verify data against a SHA1 checksum. 534 535config CMD_STRINGS 536 bool "strings - display strings in memory" 537 help 538 This works similarly to the Unix 'strings' command except that it 539 works with a memory range. String of printable characters found 540 within the range are displayed. The minimum number of characters 541 for a sequence to be considered a string can be provided. 542 543config CMD_CRYPTO 544 bool "crypto test" 545 depends on DM_CRYPTO 546 select SHA1 547 select SHA256 548 select SHA512 549 select MD5 550 help 551 Crypto test. 552 553config CMD_CRYPTO_SUM 554 bool "crypto checksum engine" 555 depends on DM_CRYPTO 556 default y 557 help 558 Crypto checksum engine for sha1/sha256/sha512/md5. 559endmenu 560 561menu "Compression commands" 562 563config CMD_LZMADEC 564 bool "lzmadec" 565 default y if CMD_BOOTI 566 select LZMA 567 help 568 Support decompressing an LZMA (Lempel-Ziv-Markov chain algorithm) 569 image from memory. 570 571config CMD_UNZIP 572 bool "unzip" 573 default y if CMD_BOOTI 574 help 575 Uncompress a zip-compressed memory region. 576 577config CMD_ZIP 578 bool "zip" 579 help 580 Compress a memory region with zlib deflate method. 581 582endmenu 583 584menu "Device access commands" 585 586config CMD_ARMFLASH 587 #depends on FLASH_CFI_DRIVER 588 bool "armflash" 589 help 590 ARM Ltd reference designs flash partition access 591 592config CMD_CLK 593 bool "clk - Show clock frequencies" 594 help 595 (deprecated) 596 Shows clock frequences by calling a sock_clk_dump() hook function. 597 This is depreated in favour of using the CLK uclass and accessing 598 clock values from associated drivers. However currently no command 599 exists for this. 600 601config CMD_DEMO 602 bool "demo - Demonstration commands for driver model" 603 depends on DM 604 help 605 Provides a 'demo' command which can be used to play around with 606 driver model. To use this properly you will need to enable one or 607 both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE). 608 Otherwise you will always get an empty list of devices. The demo 609 devices are defined in the sandbox device tree, so the easiest 610 option is to use sandbox and pass the -d point to sandbox's 611 u-boot.dtb file. 612 613config CMD_DFU 614 bool "dfu" 615 select USB_FUNCTION_DFU 616 help 617 Enables the command "dfu" which is used to have U-Boot create a DFU 618 class device via USB. This command requires that the "dfu_alt_info" 619 environment variable be set and define the alt settings to expose to 620 the host. 621 622config CMD_DM 623 bool "dm - Access to driver model information" 624 depends on DM 625 default y 626 help 627 Provides access to driver model data structures and information, 628 such as a list of devices, list of uclasses and the state of each 629 device (e.g. activated). This is not required for operation, but 630 can be useful to see the state of driver model for debugging or 631 interest. 632 633config CMD_FDC 634 bool "fdcboot - Boot from floppy device" 635 help 636 The 'fdtboot' command allows booting an image from a floppy disk. 637 638config CMD_FLASH 639 bool "flinfo, erase, protect" 640 default y 641 help 642 NOR flash support. 643 flinfo - print FLASH memory information 644 erase - FLASH memory 645 protect - enable or disable FLASH write protection 646 647config CMD_FPGA 648 bool "fpga" 649 default y 650 help 651 FPGA support. 652 653config CMD_FPGA_LOADBP 654 bool "fpga loadbp - load partial bitstream (Xilinx only)" 655 depends on CMD_FPGA 656 help 657 Supports loading an FPGA device from a bitstream buffer containing 658 a partial bitstream. 659 660config CMD_FPGA_LOADFS 661 bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)" 662 depends on CMD_FPGA 663 help 664 Supports loading an FPGA device from a FAT filesystem. 665 666config CMD_FPGA_LOADMK 667 bool "fpga loadmk - load bitstream from image" 668 depends on CMD_FPGA 669 help 670 Supports loading an FPGA device from a image generated by mkimage. 671 672config CMD_FPGA_LOADP 673 bool "fpga loadp - load partial bitstream" 674 depends on CMD_FPGA 675 help 676 Supports loading an FPGA device from a bitstream buffer containing 677 a partial bitstream. 678 679config CMD_FPGAD 680 bool "fpgad - dump FPGA registers" 681 help 682 (legacy, needs conversion to driver model) 683 Provides a way to dump FPGA registers by calling the board-specific 684 fpga_get_reg() function. This functions similarly to the 'md' 685 command. 686 687config CMD_FUSE 688 bool "fuse - support for the fuse subssystem" 689 help 690 (deprecated - needs conversion to driver model) 691 This allows reading, sensing, programming or overriding fuses 692 which control the behaviour of the device. The command uses the 693 fuse_...() API. 694 695config CMD_GPIO 696 bool "gpio" 697 help 698 GPIO support. 699 700config CMD_GPT 701 bool "GPT (GUID Partition Table) command" 702 select PARTITION_UUIDS 703 select EFI_PARTITION 704 imply RANDOM_UUID 705 help 706 Enable the 'gpt' command to ready and write GPT style partition 707 tables. 708 709config RANDOM_UUID 710 bool "GPT Random UUID generation" 711 help 712 Enable the generation of partitions with random UUIDs if none 713 are provided. 714 715config CMD_GPT_RENAME 716 bool "GPT partition renaming commands" 717 depends on CMD_GPT 718 help 719 Enables the 'gpt' command to interchange names on two GPT 720 partitions via the 'gpt swap' command or to rename single 721 partitions via the 'rename' command. 722 723config CMD_IDE 724 bool "ide - Support for IDE drivers" 725 select IDE 726 help 727 Provides an 'ide' command which allows accessing the IDE drive, 728 reseting the IDE interface, printing the partition table and 729 geting device info. It also enables the 'diskboot' command which 730 permits booting from an IDE drive. 731 732config CMD_IO 733 bool "io - Support for performing I/O accesses" 734 help 735 Provides an 'iod' command to display I/O space and an 'iow' command 736 to write values to the I/O space. This can be useful for manually 737 checking the state of devices during boot when debugging device 738 drivers, etc. 739 740config CMD_IOTRACE 741 bool "iotrace - Support for tracing I/O activity" 742 help 743 Provides an 'iotrace' command which supports recording I/O reads and 744 writes in a trace buffer in memory . It also maintains a checksum 745 of the trace records (even if space is exhausted) so that the 746 sequence of I/O accesses can be verified. 747 748 When debugging drivers it is useful to see what I/O accesses were 749 done and in what order. 750 751 Even if the individual accesses are of little interest it can be 752 useful to verify that the access pattern is consistent each time 753 an operation is performed. In this case a checksum can be used to 754 characterise the operation of a driver. The checksum can be compared 755 across different runs of the operation to verify that the driver is 756 working properly. 757 758 In particular, when performing major refactoring of the driver, where 759 the access pattern should not change, the checksum provides assurance 760 that the refactoring work has not broken the driver. 761 762 This works by sneaking into the io.h heder for an architecture and 763 redirecting I/O accesses through iotrace's tracing mechanism. 764 765 For now no commands are provided to examine the trace buffer. The 766 format is fairly simple, so 'md' is a reasonable substitute. 767 768 Note: The checksum feature is only useful for I/O regions where the 769 contents do not change outside of software control. Where this is not 770 suitable you can fall back to manually comparing the addresses. It 771 might be useful to enhance tracing to only checksum the accesses and 772 not the data read/written. 773 774config CMD_I2C 775 bool "i2c" 776 help 777 I2C support. 778 779config CMD_LOADB 780 bool "loadb" 781 default y 782 help 783 Load a binary file over serial line. 784 785config CMD_LOADS 786 bool "loads" 787 default y 788 help 789 Load an S-Record file over serial line 790 791config CMD_LOAD_ANDROID 792 bool "load_android" 793 default n 794 depends on ANDROID_BOOT_IMAGE 795 help 796 Load an Android Boot image from storage. The Android Boot images 797 define the size and kernel address on the header, which are used by 798 this command. 799 800config CMD_BOOT_ANDROID 801 bool "boot_android" 802 default n 803 depends on ANDROID_BOOTLOADER 804 help 805 Performs the Android Bootloader boot flow, loading the appropriate 806 Android image (normal kernel, recovery kernel or "bootloader" mode) 807 and booting it. The boot mode is determined by the contents of the 808 Android Bootloader Message. 809 810config CMD_ANDROID_AB_SELECT 811 bool "android_ab_select" 812 default n 813 depends on ANDROID_AB 814 help 815 On Android devices with more than one boot slot (multiple copies of 816 the kernel and system images) this provides a command to select which 817 slot should be used to boot from and register the boot attempt. This 818 is used by the new A/B update model where one slot is updated in the 819 background while running from the other slot. 820 821config CMD_BOOT_FIT 822 bool "boot_fit" 823 default n 824 depends on ROCKCHIP_FIT_IMAGE 825 help 826 Performs the FIT boot flow, loading the appropriate FIT image from 827 boot/recovery partition containing kernel/fdt/ramdisk images. 828 Additional that, the IH_TYPE_MULTI can be used for resource file. 829 830config CMD_BOOT_UIMAGE 831 bool "boot_uimage" 832 default n 833 depends on ROCKCHIP_UIMAGE 834 help 835 Performs the Legacy uImage boot flow, loading the appropriate uImage 836 file from resource/kernel/boot(recovery) partitions. Additional that, 837 the resource partition can be fdt or resource(recommand) uImage file. 838 839config CMD_BOOT_ROCKCHIP 840 bool "boot_rockchip" 841 default n 842 depends on RKIMG_BOOTLOADER 843 help 844 Performs the Rockchip Bootloader boot flow, loading the appropriate 845 Rockchip image (normal kernel, boot, resource and revocery) 846 and booting it. The boot mode is determined by the contents of the 847 Rockchip bootloader helper. 848 849config CMD_MMC 850 bool "mmc" 851 help 852 MMC memory mapped support. 853 854config CMD_MTD 855 bool "mtd" 856 select MTD_PARTITIONS 857 help 858 MTD commands support. 859 860config CMD_NAND 861 bool "nand" 862 default y if NAND_SUNXI 863 help 864 NAND support. 865 866if CMD_NAND 867config CMD_NAND_TRIMFFS 868 bool "nand write.trimffs" 869 default y if ARCH_SUNXI 870 help 871 Allows one to skip empty pages when flashing something on a NAND. 872 873config CMD_NAND_LOCK_UNLOCK 874 bool "nand lock/unlock" 875 help 876 NAND locking support. 877 878config CMD_NAND_TORTURE 879 bool "nand torture" 880 help 881 NAND torture support. 882 883endif # CMD_NAND 884 885config CMD_NVME 886 bool "nvme" 887 depends on NVME 888 default y if NVME 889 help 890 NVM Express device support 891 892config CMD_MMC_SPI 893 bool "mmc_spi - Set up MMC SPI device" 894 help 895 Provides a way to set up an MMC (Multimedia Card) SPI (Serial 896 Peripheral Interface) device. The device provides a means of 897 accessing an MMC device via SPI using a single data line, limited 898 to 20MHz. It is useful since it reduces the amount of protocol code 899 required. 900 901config CMD_ONENAND 902 bool "onenand - access to onenand device" 903 help 904 OneNAND is a brand of NAND ('Not AND' gate) flash which provides 905 various useful features. This command allows reading, writing, 906 and erasing blocks. It allso provides a way to show and change 907 bad blocks, and test the device. 908 909config CMD_PART 910 bool "part" 911 select PARTITION_UUIDS 912 help 913 Read and display information about the partition table on 914 various media. 915 916config CMD_PCI 917 bool "pci - Access PCI devices" 918 help 919 Provide access to PCI (Peripheral Interconnect Bus), a type of bus 920 used on some devices to allow the CPU to communicate with its 921 peripherals. Sub-commands allow bus enumeration, displaying and 922 changing configuration space and a few other features. 923 924config CMD_PCMCIA 925 bool "pinit - Set up PCMCIA device" 926 help 927 Provides a means to initialise a PCMCIA (Personal Computer Memory 928 Card International Association) device. This is an old standard from 929 about 1990. These devices are typically removable memory or network 930 cards using a standard 68-pin connector. 931 932config CMD_READ 933 bool "read - Read binary data from a partition" 934 help 935 Provides low-level access to the data in a partition. 936 937config CMD_REMOTEPROC 938 bool "remoteproc" 939 depends on REMOTEPROC 940 help 941 Support for Remote Processor control 942 943config CMD_ROCKUSB 944 bool "rockusb - Command to upgrade Rockchip device" 945 depends on USB_GADGET 946 help 947 Rockusb command provides a way to upgrade firmware for 948 Rockchip SoC based devices, its design make use of USB 949 Bulk-Only Transport based on UMS framework. 950 951config CMD_RKNAND 952 bool "rknand" 953 depends on (RKNAND || RKNANDC_NAND) 954 default y if (RKNAND || RKNANDC_NAND) 955 help 956 Rockchip NAND FLASH device support 957 958config CMD_RKSFC 959 bool "rksfc" 960 depends on (RKSFC_NOR || RKSFC_NAND) 961 default y if (RKSFC_NOR || RKSFC_NAND) 962 help 963 Rockchip SFC device support 964 965config CMD_RK_SECURE_STORAGE 966 bool "dump rockchip efuse/otp content" 967 help 968 Dump the data which is written in OTP or efuse. 969 970config CMD_SATA 971 bool "sata - Access SATA subsystem" 972 select SATA 973 help 974 SATA (Serial Advanced Technology Attachment) is a serial bus 975 standard for connecting to hard drives and other storage devices. 976 This command provides information about attached devices and allows 977 reading, writing and other operations. 978 979 SATA replaces PATA (originally just ATA), which stands for Parallel AT 980 Attachment, where AT refers to an IBM AT (Advanced Technology) 981 computer released in 1984. 982 983config CMD_SAVES 984 bool "saves - Save a file over serial in S-Record format" 985 help 986 Provides a way to save a binary file using the Motorola S-Record 987 format over the serial line. 988 989config CMD_SDRAM 990 bool "sdram - Print SDRAM configuration information" 991 help 992 Provides information about attached SDRAM. This assumed that the 993 SDRAM has an EEPROM with information that can be read using the 994 I2C bus. This is only available on some boards. 995 996config CMD_SF 997 bool "sf" 998 help 999 SPI Flash support 1000 1001config CMD_SF_TEST 1002 bool "sf test - Allow testing of SPI flash" 1003 help 1004 Provides a way to test that SPI flash is working correctly. The 1005 test is destructive, in that an area of SPI flash must be provided 1006 for the test to use. Performance information is also provided, 1007 measuring the performance of reading, writing and erasing in 1008 Mbps (Million Bits Per Second). This value should approximately 1009 equal the SPI bus speed for a single-bit-wide SPI bus, assuming 1010 everything is working properly. 1011 1012config CMD_SPI 1013 bool "sspi" 1014 help 1015 SPI utility command. 1016 1017config CMD_TSI148 1018 bool "tsi148 - Command to access tsi148 device" 1019 help 1020 This provides various sub-commands to initialise and configure the 1021 Turndra tsi148 device. See the command help for full details. 1022 1023config CMD_UNIVERSE 1024 bool "universe - Command to set up the Turndra Universe controller" 1025 help 1026 This allows setting up the VMEbus provided by this controller. 1027 See the command help for full details. 1028 1029config CMD_USB 1030 bool "usb" 1031 help 1032 USB support. 1033 1034config CMD_USB_SDP 1035 bool "sdp" 1036 select USB_FUNCTION_SDP 1037 help 1038 Enables the command "sdp" which is used to have U-Boot emulating the 1039 Serial Download Protocol (SDP) via USB. 1040 1041config CMD_USB_MASS_STORAGE 1042 bool "UMS usb mass storage" 1043 help 1044 USB mass storage support 1045 1046endmenu 1047 1048 1049menu "Shell scripting commands" 1050 1051config CMD_ECHO 1052 bool "echo" 1053 default y 1054 help 1055 Echo args to console 1056 1057config CMD_ITEST 1058 bool "itest" 1059 default y 1060 help 1061 Return true/false on integer compare. 1062 1063config CMD_SOURCE 1064 bool "source" 1065 default y 1066 help 1067 Run script from memory 1068 1069config CMD_SETEXPR 1070 bool "setexpr" 1071 default y 1072 help 1073 Evaluate boolean and math expressions and store the result in an env 1074 variable. 1075 Also supports loading the value at a memory location into a variable. 1076 If CONFIG_REGEX is enabled, setexpr also supports a gsub function. 1077 1078endmenu 1079 1080menu "Network commands" 1081 1082config CMD_NET 1083 bool "bootp, tftpboot" 1084 select NET 1085 default y 1086 help 1087 Network commands. 1088 bootp - boot image via network using BOOTP/TFTP protocol 1089 tftpboot - boot image via network using TFTP protocol 1090 1091config CMD_TFTPPUT 1092 bool "tftp put" 1093 help 1094 TFTP put command, for uploading files to a server 1095 1096config CMD_TFTP_BOOTM 1097 bool "tftp download and bootm" 1098 help 1099 TFTP bootm command, download and bootm the aosp/uImage/FIT Image. 1100 1101config CMD_TFTP_FLASH 1102 bool "tftp download and flash" 1103 help 1104 TFTP flash command, download and flash the Image to partition. 1105 1106config CMD_TFTP_UPDATE 1107 bool "tftp update" 1108 help 1109 Update a set of images organized with FIT via network using TFTP protocol 1110 1111 1112config CMD_TFTPSRV 1113 bool "tftpsrv" 1114 help 1115 Act as a TFTP server and boot the first received file 1116 1117config CMD_RARP 1118 bool "rarpboot" 1119 help 1120 Boot image via network using RARP/TFTP protocol 1121 1122config CMD_DHCP 1123 bool "dhcp" 1124 help 1125 Boot image via network using DHCP/TFTP protocol 1126 1127config CMD_PXE 1128 bool "pxe" 1129 select MENU 1130 help 1131 Boot image via network using PXE protocol 1132 1133config CMD_NFS 1134 bool "nfs" 1135 default y 1136 help 1137 Boot image via network using NFS protocol. 1138 1139config CMD_MII 1140 bool "mii" 1141 help 1142 Enable MII utility commands. 1143 1144config CMD_PING 1145 bool "ping" 1146 help 1147 Send ICMP ECHO_REQUEST to network host 1148 1149config CMD_CDP 1150 bool "cdp" 1151 help 1152 Perform CDP network configuration 1153 1154config CMD_SNTP 1155 bool "sntp" 1156 help 1157 Synchronize RTC via network 1158 1159config CMD_DNS 1160 bool "dns" 1161 help 1162 Lookup the IP of a hostname 1163 1164config CMD_LINK_LOCAL 1165 bool "linklocal" 1166 help 1167 Acquire a network IP address using the link-local protocol 1168 1169config CMD_ETHSW 1170 bool "ethsw" 1171 help 1172 Allow control of L2 Ethernet switch commands. These are supported 1173 by the vsc9953 Ethernet driver at present. Sub-commands allow 1174 operations such as enabling / disabling a port and 1175 viewing/maintaining the filtering database (FDB) 1176 1177endmenu 1178 1179config CMD_MEMTESTER 1180 bool "Enable memtester for ddr" 1181 help 1182 This enables memtester for ddr. 1183 1184config CMD_DDR_TEST_TOOL 1185 bool "Enable ddr test tool" 1186 help 1187 This enable ddr test tool code. 1188 1189menu "Misc commands" 1190 1191config CMD_BMP 1192 bool "Enable 'bmp' command" 1193 depends on LCD || DM_VIDEO || VIDEO 1194 help 1195 This provides a way to obtain information about a BMP-format iamge 1196 and to display it. BMP (which presumably stands for BitMaP) is a 1197 file format defined by Microsoft which supports images of various 1198 depths, formats and compression methods. Headers on the file 1199 determine the formats used. This command can be used by first loading 1200 the image into RAM, then using this command to look at it or display 1201 it. 1202 1203config CMD_BSP 1204 bool "Enable board-specific commands" 1205 help 1206 (deprecated: instead, please define a Kconfig option for each command) 1207 1208 Some boards have board-specific commands which are only enabled 1209 during developemnt and need to be turned off for production. This 1210 option provides a way to control this. The commands that are enabled 1211 vary depending on the board. 1212 1213config CMD_BKOPS_ENABLE 1214 bool "mmc bkops enable" 1215 depends on CMD_MMC 1216 default n 1217 help 1218 Enable command for setting manual background operations handshake 1219 on a eMMC device. The feature is optionally available on eMMC devices 1220 conforming to standard >= 4.41. 1221 1222config CMD_BLOCK_CACHE 1223 bool "blkcache - control and stats for block cache" 1224 depends on BLOCK_CACHE 1225 default y if BLOCK_CACHE 1226 help 1227 Enable the blkcache command, which can be used to control the 1228 operation of the cache functions. 1229 This is most useful when fine-tuning the operation of the cache 1230 during development, but also allows the cache to be disabled when 1231 it might hurt performance (e.g. when using the ums command). 1232 1233config CMD_CACHE 1234 bool "icache or dcache" 1235 help 1236 Enable the "icache" and "dcache" commands 1237 1238config CMD_DISPLAY 1239 bool "Enable the 'display' command, for character displays" 1240 help 1241 (this needs porting to driver model) 1242 This enables the 'display' command which allows a string to be 1243 displayed on a simple board-specific display. Implement 1244 display_putc() to use it. 1245 1246config CMD_LED 1247 bool "led" 1248 default y if LED 1249 help 1250 Enable the 'led' command which allows for control of LEDs supported 1251 by the board. The LEDs can be listed with 'led list' and controlled 1252 with led on/off/togle/blink. Any LED drivers can be controlled with 1253 this command, e.g. led_gpio. 1254 1255config CMD_DATE 1256 bool "date" 1257 default y if DM_RTC 1258 help 1259 Enable the 'date' command for getting/setting the time/date in RTC 1260 devices. 1261 1262config CMD_TIME 1263 bool "time" 1264 help 1265 Run commands and summarize execution time. 1266 1267config CMD_GETTIME 1268 bool "gettime - read elapsed time" 1269 help 1270 Enable the 'gettime' command which reads the elapsed time since 1271 U-Boot started running. This shows the time in seconds and 1272 milliseconds. See also the 'bootstage' command which provides more 1273 flexibility for boot timing. 1274 1275config CMD_RNG 1276 bool "rng command" 1277 depends on DM_RNG 1278 select HEXDUMP 1279 help 1280 Print bytes from the hardware random number generator. 1281 1282# TODO: rename to CMD_SLEEP 1283config CMD_MISC 1284 bool "sleep" 1285 default y 1286 help 1287 Delay execution for some time 1288 1289config CMD_TIMER 1290 bool "timer" 1291 help 1292 Access the system timer. 1293 1294config CMD_SOUND 1295 bool "sound" 1296 depends on SOUND 1297 help 1298 This provides basic access to the U-Boot's sound support. The main 1299 feature is to play a beep. 1300 1301 sound init - set up sound system 1302 sound play - play a sound 1303 1304config CMD_QFW 1305 bool "qfw" 1306 select QFW 1307 help 1308 This provides access to the QEMU firmware interface. The main 1309 feature is to allow easy loading of files passed to qemu-system 1310 via -kernel / -initrd 1311 1312source "cmd/mvebu/Kconfig" 1313 1314config CMD_TERMINAL 1315 bool "terminal - provides a way to attach a serial terminal" 1316 help 1317 Provides a 'cu'-like serial terminal command. This can be used to 1318 access other serial ports from the system console. The terminal 1319 is very simple with no special processing of characters. As with 1320 cu, you can press ~. (tilde followed by period) to exit. 1321 1322config CMD_UUID 1323 bool "uuid, guid - generation of unique IDs" 1324 help 1325 This enables two commands: 1326 1327 uuid - generate random Universally Unique Identifier 1328 guid - generate Globally Unique Identifier based on random UUID 1329 1330 The two commands are very similar except for the endianness of the 1331 output. 1332 1333endmenu 1334 1335config CMD_BOOTSTAGE 1336 bool "Enable the 'bootstage' command" 1337 depends on BOOTSTAGE 1338 help 1339 Add a 'bootstage' command which supports printing a report 1340 and un/stashing of bootstage data. 1341 1342menu "Power commands" 1343config CMD_PMIC 1344 bool "Enable Driver Model PMIC command" 1345 depends on DM_PMIC 1346 help 1347 This is the pmic command, based on a driver model pmic's API. 1348 Command features are unchanged: 1349 - list - list pmic devices 1350 - pmic dev <id> - show or [set] operating pmic device (NEW) 1351 - pmic dump - dump registers 1352 - pmic read address - read byte of register at address 1353 - pmic write address - write byte to register at address 1354 The only one change for this command is 'dev' subcommand. 1355 1356config CMD_REGULATOR 1357 bool "Enable Driver Model REGULATOR command" 1358 depends on DM_REGULATOR 1359 help 1360 This command is based on driver model regulator's API. 1361 User interface features: 1362 - list - list regulator devices 1363 - regulator dev <id> - show or [set] operating regulator device 1364 - regulator info - print constraints info 1365 - regulator status - print operating status 1366 - regulator value <val] <-f> - print/[set] voltage value [uV] 1367 - regulator current <val> - print/[set] current value [uA] 1368 - regulator mode <id> - print/[set] operating mode id 1369 - regulator enable - enable the regulator output 1370 - regulator disable - disable the regulator output 1371 1372 The '-f' (force) option can be used for set the value which exceeds 1373 the limits, which are found in device-tree and are kept in regulator's 1374 uclass platdata structure. 1375 1376config CMD_CHARGE_DISPLAY 1377 bool "Enable Driver Model Charge Display command" 1378 depends on DM_CHARGE_DISPLAY 1379 default y 1380 help 1381 Support U-Boot charge display. 1382 1383config CMD_DVFS 1384 bool "Enable Driver Model DVFS command" 1385 depends on DM_DVFS 1386 default y 1387 help 1388 Support dvfs policy apply API 1389 User interface features: 1390 - dvfs - apply dvfs policy once 1391 - dvfs repeat - repeat apply dvfs policy until achieve the target temperature 1392 1393endmenu 1394 1395menu "Security commands" 1396config CMD_AES 1397 bool "Enable the 'aes' command" 1398 select AES 1399 help 1400 This provides a means to encrypt and decrypt data using the AES 1401 (Advanced Encryption Standard). This algorithm uses a symetric key 1402 and is widely used as a streaming cipher. Different key lengths are 1403 supported by the algorithm but this command only supports 128 bits 1404 at present. 1405 1406config CMD_BLOB 1407 bool "Enable the 'blob' command" 1408 help 1409 This is used with the Freescale secure boot mechanism. 1410 1411 Freescale's SEC block has built-in Blob Protocol which provides 1412 a method for protecting user-defined data across system power 1413 cycles. SEC block protects data in a data structure called a Blob, 1414 which provides both confidentiality and integrity protection. 1415 1416 Encapsulating data as a blob 1417 Each time that the Blob Protocol is used to protect data, a 1418 different randomly generated key is used to encrypt the data. 1419 This random key is itself encrypted using a key which is derived 1420 from SoC's non-volatile secret key and a 16 bit Key identifier. 1421 The resulting encrypted key along with encrypted data is called a 1422 blob. The non-volatile secure key is available for use only during 1423 secure boot. 1424 1425 During decapsulation, the reverse process is performed to get back 1426 the original data. 1427 1428 Sub-commands: 1429 blob enc - encapsulating data as a cryptgraphic blob 1430 blob dec - decapsulating cryptgraphic blob to get the data 1431 1432 Syntax: 1433 1434 blob enc src dst len km 1435 1436 Encapsulate and create blob of data $len bytes long 1437 at address $src and store the result at address $dst. 1438 $km is the 16 byte key modifier is also required for 1439 generation/use as key for cryptographic operation. Key 1440 modifier should be 16 byte long. 1441 1442 blob dec src dst len km 1443 1444 Decapsulate the blob of data at address $src and 1445 store result of $len byte at addr $dst. 1446 $km is the 16 byte key modifier is also required for 1447 generation/use as key for cryptographic operation. Key 1448 modifier should be 16 byte long. 1449 1450config CMD_HASH 1451 bool "Support 'hash' command" 1452 select HASH 1453 help 1454 This provides a way to hash data in memory using various supported 1455 algorithms (such as SHA1, MD5, CRC32). The computed digest can be 1456 saved to memory or to an environment variable. It is also possible 1457 to verify a hash against data in memory. 1458 1459config HASH_VERIFY 1460 bool "hash -v" 1461 depends on CMD_HASH 1462 help 1463 Add -v option to verify data against a hash. 1464 1465config CMD_TPM 1466 bool "Enable the 'tpm' command" 1467 depends on TPM 1468 help 1469 This provides a means to talk to a TPM from the command line. A wide 1470 range of commands if provided - see 'tpm help' for details. The 1471 command requires a suitable TPM on your board and the correct driver 1472 must be enabled. 1473 1474config CMD_TPM_TEST 1475 bool "Enable the 'tpm test' command" 1476 depends on CMD_TPM 1477 help 1478 This provides a a series of tests to confirm that the TPM is working 1479 correctly. The tests cover initialisation, non-volatile RAM, extend, 1480 global lock and checking that timing is within expectations. The 1481 tests pass correctly on Infineon TPMs but may need to be adjusted 1482 for other devices. 1483 1484endmenu 1485 1486menu "Firmware commands" 1487config CMD_CROS_EC 1488 bool "Enable crosec command" 1489 depends on CROS_EC 1490 default y 1491 help 1492 Enable command-line access to the Chrome OS EC (Embedded 1493 Controller). This provides the 'crosec' command which has 1494 a number of sub-commands for performing EC tasks such as 1495 updating its flash, accessing a small saved context area 1496 and talking to the I2C bus behind the EC (if there is one). 1497endmenu 1498 1499menu "Filesystem commands" 1500config CMD_CBFS 1501 bool "Enable the 'cbfs' command" 1502 depends on FS_CBFS 1503 help 1504 Define this to enable support for reading from a Coreboot 1505 filesystem. This is a ROM-based filesystem used for accessing files 1506 on systems that use coreboot as the first boot-loader and then load 1507 U-Boot to actually boot the Operating System. Available commands are 1508 cbfsinit, cbfsinfo, cbfsls and cbfsload. 1509 1510config CMD_CRAMFS 1511 bool "Enable the 'cramfs' command" 1512 depends on FS_CRAMFS 1513 help 1514 This provides commands for dealing with CRAMFS (Compressed ROM 1515 filesystem). CRAMFS is useful when space is tight since files are 1516 compressed. Two commands are provided: 1517 1518 cramfsls - lists files in a cramfs image 1519 cramfsload - loads a file from a cramfs image 1520 1521config CMD_EXT2 1522 bool "ext2 command support" 1523 help 1524 Enables EXT2 FS command 1525 1526config CMD_EXT4 1527 bool "ext4 command support" 1528 help 1529 Enables EXT4 FS command 1530 1531config CMD_EXT4_WRITE 1532 depends on CMD_EXT4 1533 bool "ext4 write command support" 1534 help 1535 Enables EXT4 FS write command 1536 1537config CMD_FAT 1538 bool "FAT command support" 1539 select FS_FAT 1540 help 1541 Support for the FAT fs 1542 1543config CMD_FS_GENERIC 1544 bool "filesystem commands" 1545 help 1546 Enables filesystem commands (e.g. load, ls) that work for multiple 1547 fs types. 1548 1549config CMD_FS_UUID 1550 bool "fsuuid command" 1551 help 1552 Enables fsuuid command for filesystem UUID. 1553 1554config CMD_JFFS2 1555 bool "jffs2 command" 1556 select FS_JFFS2 1557 help 1558 Enables commands to support the JFFS2 (Journalling Flash File System 1559 version 2) filesystem. This enables fsload, ls and fsinfo which 1560 provide the ability to load files, list directories and obtain 1561 filesystem information. 1562 1563config CMD_MTDPARTS 1564 bool "MTD partition support" 1565 select MTD_DEVICE if (CMD_NAND || NAND) 1566 help 1567 MTD partition support 1568 1569config CMD_MTD 1570 bool "MTD support" 1571 help 1572 MTD support 1573 1574config CMD_MTD_BLK 1575 bool "MTD block support" 1576 help 1577 MTD block support 1578 1579config MTDIDS_DEFAULT 1580 string "Default MTD IDs" 1581 depends on CMD_MTD || CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1582 help 1583 Defines a default MTD ID 1584 1585config MTDPARTS_DEFAULT 1586 string "Default MTD partition scheme" 1587 depends on CMD_MTD || CMD_MTDPARTS || CMD_NAND || CMD_FLASH 1588 help 1589 Defines a default MTD partitioning scheme in the Linux MTD command 1590 line partitions format 1591 1592config CMD_MTDPARTS_SPREAD 1593 bool "Padd partition size to take account of bad blocks" 1594 depends on CMD_MTDPARTS 1595 help 1596 This enables the 'spread' sub-command of the mtdparts command. 1597 This command will modify the existing mtdparts variable by increasing 1598 the size of the partitions such that 1) each partition's net size is 1599 at least as large as the size specified in the mtdparts variable and 1600 2) each partition starts on a good block. 1601 1602config CMD_REISER 1603 bool "reiser - Access to reiserfs filesystems" 1604 help 1605 This provides two commands which operate on a resierfs filesystem, 1606 commonly used some years ago: 1607 1608 reiserls - list files 1609 reiserload - load a file 1610 1611config CMD_SCSI 1612 bool "scsi - Access to SCSI devices" 1613 default y if SCSI 1614 help 1615 This provides a 'scsi' command which provides access to SCSI (Small 1616 Computer System Interface) devices. The command provides a way to 1617 scan the bus, reset the bus, read and write data and get information 1618 about devices. 1619 1620config CMD_YAFFS2 1621 bool "yaffs2 - Access of YAFFS2 filesystem" 1622 depends on YAFFS2 1623 default y 1624 help 1625 This provides commands for accessing a YAFFS2 filesystem. Yet 1626 Another Flash Filesystem 2 is a filesystem designed specifically 1627 for NAND flash. It incorporates bad-block management and ensures 1628 that device writes are sequential regardless of filesystem 1629 activity. 1630 1631config CMD_ZFS 1632 bool "zfs - Access of ZFS filesystem" 1633 help 1634 This provides commands to accessing a ZFS filesystem, commonly used 1635 on Solaris systems. Two sub-commands are provided: 1636 1637 zfsls - list files in a directory 1638 zfsload - load a file 1639 1640 See doc/README.zfs for more details. 1641 1642endmenu 1643 1644menu "Debug commands" 1645 1646config CMD_ATAGS 1647 bool "atags - Dump all rockchip atags" 1648 default y 1649 help 1650 This command dump all rockchip atags. 1651 1652config CMD_BEDBUG 1653 bool "bedbug" 1654 help 1655 The bedbug (emBEDded deBUGger) command provides debugging features 1656 for some PowerPC processors. For details please see the 1657 docuemntation in doc/README.beddbug 1658 1659config CMD_DIAG 1660 bool "diag - Board diagnostics" 1661 help 1662 This command provides access to board diagnostic tests. These are 1663 called Power-on Self Tests (POST). The command allows listing of 1664 available tests and running either all the tests, or specific tests 1665 identified by name. 1666 1667config CMD_IRQ 1668 bool "irq - Show information about interrupts" 1669 depends on !ARM && !MIPS && !SH 1670 help 1671 This enables two commands: 1672 1673 interrupts - enable or disable interrupts 1674 irqinfo - print device-specific interrupt information 1675 1676config CMD_KGDB 1677 bool "kgdb - Allow debugging of U-Boot with gdb" 1678 help 1679 This enables a 'kgdb' command which allows gdb to connect to U-Boot 1680 over a serial link for debugging purposes. This allows 1681 single-stepping, inspecting variables, etc. This is supported only 1682 on PowerPC at present. 1683 1684config CMD_LOG 1685 bool "log - Generation, control and access to logging" 1686 help 1687 This provides access to logging features. It allows the output of 1688 log data to be controlled to a limited extent (setting up the default 1689 maximum log level for emitting of records). It also provides access 1690 to a command used for testing the log system. 1691 1692config CMD_TRACE 1693 bool "trace - Support tracing of function calls and timing" 1694 help 1695 Enables a command to control using of function tracing within 1696 U-Boot. This allows recording of call traces including timing 1697 information. The command can write data to memory for exporting 1698 for analsys (e.g. using bootchart). See doc/README.trace for full 1699 details. 1700 1701endmenu 1702 1703config CMD_UBI 1704 tristate "Enable UBI - Unsorted block images commands" 1705 select CRC32 1706 select MTD_UBI 1707 select CMD_MTDPARTS 1708 default y if NAND_SUNXI 1709 help 1710 UBI is a software layer above MTD layer which admits use of LVM-like 1711 logical volumes on top of MTD devices, hides some complexities of 1712 flash chips like wear and bad blocks and provides some other useful 1713 capabilities. Please, consult the MTD web site for more details 1714 (www.linux-mtd.infradead.org). Activate this option if you want 1715 to use U-Boot UBI commands. 1716 1717config CMD_UBIFS 1718 tristate "Enable UBIFS - Unsorted block images filesystem commands" 1719 depends on CMD_UBI 1720 select CRC32 1721 select LZO 1722 default y if CMD_UBI 1723 help 1724 UBIFS is a file system for flash devices which works on top of UBI. 1725 1726endmenu 1727