1menu "Library routines" 2 3config ADDR_MAP 4 bool "Enable support for non-identity virtual-physical mappings" 5 help 6 Enables helper code for implementing non-identity virtual-physical 7 memory mappings for 32bit CPUs. 8 9 This library only works in the post-relocation phase. 10 11config SYS_NUM_ADDR_MAP 12 int "Size of the address-map table" 13 depends on ADDR_MAP 14 default 16 15 help 16 Sets the number of entries in the virtual-physical mapping table. 17 18config BCH 19 bool "Enable Software based BCH ECC" 20 help 21 Enables software based BCH ECC algorithm present in lib/bch.c 22 This is used by SoC platforms which do not have built-in ELM 23 hardware engine required for BCH ECC correction. 24 25config BINMAN_FDT 26 bool "Allow access to binman information in the device tree" 27 depends on BINMAN && DM && OF_CONTROL 28 default y if OF_SEPARATE || OF_EMBED 29 help 30 This enables U-Boot to access information about binman entries, 31 stored in the device tree in a binman node. Typical uses are to 32 locate entries in the firmware image. See binman.h for the available 33 functionality. 34 35config CC_OPTIMIZE_LIBS_FOR_SPEED 36 bool "Optimize libraries for speed" 37 help 38 Enabling this option will pass "-O2" to gcc when compiling 39 under "lib" directory. 40 41 If unsure, say N. 42 43config CHARSET 44 bool 45 default y if UT_UNICODE || EFI_LOADER || UFS 46 help 47 Enables support for various conversions between different 48 character sets, such as between unicode representations and 49 different 'code pages'. 50 51config DYNAMIC_CRC_TABLE 52 bool "Enable Dynamic tables for CRC" 53 help 54 Enable this option to calculate entries for CRC tables at runtime. 55 This can be helpful when reducing the size of the build image 56 57config HAVE_ARCH_IOMAP 58 bool 59 help 60 Enable this option if architecture provides io{read,write}{8,16,32} 61 I/O accessor functions. 62 63config HAVE_PRIVATE_LIBGCC 64 bool 65 66config LIB_UUID 67 bool 68 69config PRINTF 70 bool 71 default y 72 73config SPL_PRINTF 74 bool 75 select SPL_SPRINTF 76 select SPL_STRTO if !SPL_USE_TINY_PRINTF 77 78config TPL_PRINTF 79 bool 80 select TPL_SPRINTF 81 select TPL_STRTO if !TPL_USE_TINY_PRINTF 82 83config SPRINTF 84 bool 85 default y 86 87config SPL_SPRINTF 88 bool 89 90config TPL_SPRINTF 91 bool 92 93config SSCANF 94 bool 95 96config STRTO 97 bool 98 default y 99 100config SPL_STRTO 101 bool 102 103config TPL_STRTO 104 bool 105 106config IMAGE_SPARSE 107 bool 108 109config IMAGE_SPARSE_FILLBUF_SIZE 110 hex "Android sparse image CHUNK_TYPE_FILL buffer size" 111 default 0x80000 112 depends on IMAGE_SPARSE 113 help 114 Set the size of the fill buffer used when processing CHUNK_TYPE_FILL 115 chunks. 116 117config USE_PRIVATE_LIBGCC 118 bool "Use private libgcc" 119 depends on HAVE_PRIVATE_LIBGCC 120 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS) 121 help 122 This option allows you to use the built-in libgcc implementation 123 of U-Boot instead of the one provided by the compiler. 124 If unsure, say N. 125 126config SYS_HZ 127 int 128 default 1000 129 help 130 The frequency of the timer returned by get_timer(). 131 get_timer() must operate in milliseconds and this option must be 132 set to 1000. 133 134config SPL_USE_TINY_PRINTF 135 bool "Enable tiny printf() version in SPL" 136 depends on SPL 137 default y 138 help 139 This option enables a tiny, stripped down printf version. 140 This should only be used in space limited environments, 141 like SPL versions with hard memory limits. This version 142 reduces the code size by about 2.5KiB on armv7. 143 144 The supported format specifiers are %c, %s, %u/%d and %x. 145 146config TPL_USE_TINY_PRINTF 147 bool "Enable tiny printf() version in TPL" 148 depends on TPL 149 default y if SPL_USE_TINY_PRINTF 150 help 151 This option enables a tiny, stripped down printf version. 152 This should only be used in space limited environments, 153 like SPL versions with hard memory limits. This version 154 reduces the code size by about 2.5KiB on armv7. 155 156 The supported format specifiers are %c, %s, %u/%d and %x. 157 158config PANIC_HANG 159 bool "Do not reset the system on fatal error" 160 help 161 Define this option to stop the system in case of a fatal error, 162 so that you have to reset it manually. This is probably NOT a good 163 idea for an embedded system where you want the system to reboot 164 automatically as fast as possible, but it may be useful during 165 development since you can try to debug the conditions that lead to 166 the situation. 167 168config REGEX 169 bool "Enable regular expression support" 170 default y if NET 171 help 172 If this variable is defined, U-Boot is linked against the 173 SLRE (Super Light Regular Expression) library, which adds 174 regex support to some commands, for example "env grep" and 175 "setexpr". 176 177choice 178 prompt "Pseudo-random library support type" 179 depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID || \ 180 RNG_SANDBOX || UT_LIB && AES || FAT_WRITE 181 default LIB_RAND 182 help 183 Select the library to provide pseudo-random number generator 184 functions. LIB_HW_RAND supports certain hardware engines that 185 provide this functionality. If in doubt, select LIB_RAND. 186 187config LIB_RAND 188 bool "Pseudo-random library support" 189 190config LIB_HW_RAND 191 bool "HW Engine for random library support" 192 193endchoice 194 195config SPL_TINY_MEMSET 196 bool "Use a very small memset() in SPL" 197 help 198 The faster memset() is the arch-specific one (if available) enabled 199 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get 200 better performance by writing a word at a time. But in very 201 size-constrained environments even this may be too big. Enable this 202 option to reduce code size slightly at the cost of some speed. 203 204config TPL_TINY_MEMSET 205 bool "Use a very small memset() in TPL" 206 help 207 The faster memset() is the arch-specific one (if available) enabled 208 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get 209 better performance by writing a word at a time. But in very 210 size-constrained environments even this may be too big. Enable this 211 option to reduce code size slightly at the cost of some speed. 212 213config RBTREE 214 bool 215 216config BITREVERSE 217 bool "Bit reverse library from Linux" 218 219config TRACE 220 bool "Support for tracing of function calls and timing" 221 imply CMD_TRACE 222 select TIMER_EARLY 223 help 224 Enables function tracing within U-Boot. This allows recording of call 225 traces including timing information. The command can write data to 226 memory for exporting for analysis (e.g. using bootchart). 227 See doc/README.trace for full details. 228 229config TRACE_BUFFER_SIZE 230 hex "Size of trace buffer in U-Boot" 231 depends on TRACE 232 default 0x01000000 233 help 234 Sets the size of the trace buffer in U-Boot. This is allocated from 235 memory during relocation. If this buffer is too small, the trace 236 history will be truncated, with later records omitted. 237 238 If early trace is enabled (i.e. before relocation), this buffer must 239 be large enough to include all the data from the early trace buffer as 240 well, since this is copied over to the main buffer during relocation. 241 242 A trace record is emitted for each function call and each record is 243 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If 244 the size is too small then 'trace stats' will show a message saying 245 how many records were dropped due to buffer overflow. 246 247config TRACE_CALL_DEPTH_LIMIT 248 int "Trace call depth limit" 249 depends on TRACE 250 default 15 251 help 252 Sets the maximum call depth up to which function calls are recorded. 253 254config TRACE_EARLY 255 bool "Enable tracing before relocation" 256 depends on TRACE 257 help 258 Sometimes it is helpful to trace execution of U-Boot before 259 relocation. This is possible by using a arch-specific, fixed buffer 260 position in memory. Enable this option to start tracing as early as 261 possible after U-Boot starts. 262 263config TRACE_EARLY_SIZE 264 hex "Size of early trace buffer in U-Boot" 265 depends on TRACE_EARLY 266 default 0x00100000 267 help 268 Sets the size of the early trace buffer in bytes. This is used to hold 269 tracing information before relocation. 270 271config TRACE_EARLY_CALL_DEPTH_LIMIT 272 int "Early trace call depth limit" 273 depends on TRACE_EARLY 274 default 200 275 help 276 Sets the maximum call depth up to which function calls are recorded 277 during early tracing. 278 279config TRACE_EARLY_ADDR 280 hex "Address of early trace buffer in U-Boot" 281 depends on TRACE_EARLY 282 default 0x00100000 283 help 284 Sets the address of the early trace buffer in U-Boot. This memory 285 must be accessible before relocation. 286 287 A trace record is emitted for each function call and each record is 288 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If 289 the size is too small then the message which says the amount of early 290 data being coped will the the same as the 291 292source lib/dhry/Kconfig 293 294menu "Security support" 295 296config AES 297 bool "Support the AES algorithm" 298 help 299 This provides a means to encrypt and decrypt data using the AES 300 (Advanced Encryption Standard). This algorithm uses a symetric key 301 and is widely used as a streaming cipher. Different key lengths are 302 supported by the algorithm but only a 128-bit key is supported at 303 present. 304 305source lib/ecdsa/Kconfig 306source lib/rsa/Kconfig 307source lib/crypto/Kconfig 308source lib/crypt/Kconfig 309 310config TPM 311 bool "Trusted Platform Module (TPM) Support" 312 depends on DM 313 help 314 This enables support for TPMs which can be used to provide security 315 features for your board. The TPM can be connected via LPC or I2C 316 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 317 command to interactive the TPM. Driver model support is provided 318 for the low-level TPM interface, but only one TPM is supported at 319 a time by the TPM library. 320 321config SPL_TPM 322 bool "Trusted Platform Module (TPM) Support in SPL" 323 depends on SPL_DM 324 help 325 This enables support for TPMs which can be used to provide security 326 features for your board. The TPM can be connected via LPC or I2C 327 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 328 command to interactive the TPM. Driver model support is provided 329 for the low-level TPM interface, but only one TPM is supported at 330 a time by the TPM library. 331 332config TPL_TPM 333 bool "Trusted Platform Module (TPM) Support in TPL" 334 depends on TPL_DM 335 help 336 This enables support for TPMs which can be used to provide security 337 features for your board. The TPM can be connected via LPC or I2C 338 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 339 command to interactive the TPM. Driver model support is provided 340 for the low-level TPM interface, but only one TPM is supported at 341 a time by the TPM library. 342 343endmenu 344 345menu "Android Verified Boot" 346 347config LIBAVB 348 bool "Android Verified Boot 2.0 support" 349 depends on ANDROID_BOOT_IMAGE 350 help 351 This enables support of Android Verified Boot 2.0 which can be used 352 to assure the end user of the integrity of the software running on a 353 device. Introduces such features as boot chain of trust, rollback 354 protection etc. 355 356endmenu 357 358menu "Hashing Support" 359 360config SHA1 361 bool "Enable SHA1 support" 362 help 363 This option enables support of hashing using SHA1 algorithm. 364 The hash is calculated in software. 365 The SHA1 algorithm produces a 160-bit (20-byte) hash value 366 (digest). 367 368config SHA256 369 bool "Enable SHA256 support" 370 help 371 This option enables support of hashing using SHA256 algorithm. 372 The hash is calculated in software. 373 The SHA256 algorithm produces a 256-bit (32-byte) hash value 374 (digest). 375 376config SHA512 377 bool "Enable SHA512 support" 378 help 379 This option enables support of hashing using SHA512 algorithm. 380 The hash is calculated in software. 381 The SHA512 algorithm produces a 512-bit (64-byte) hash value 382 (digest). 383 384config SHA384 385 bool "Enable SHA384 support" 386 select SHA512 387 help 388 This option enables support of hashing using SHA384 algorithm. 389 The hash is calculated in software. This is also selects SHA512, 390 because these implementations share the bulk of the code.. 391 The SHA384 algorithm produces a 384-bit (48-byte) hash value 392 (digest). 393 394config SHA_HW_ACCEL 395 bool "Enable hardware acceleration for SHA hash functions" 396 help 397 This option enables hardware acceleration for the SHA1 and SHA256 398 hashing algorithms. This affects the 'hash' command and also the 399 hash_lookup_algo() function. 400 401if SPL 402 403config SPL_SHA1 404 bool "Enable SHA1 support in SPL" 405 default y if SHA1 406 help 407 This option enables support of hashing using SHA1 algorithm. 408 The hash is calculated in software. 409 The SHA1 algorithm produces a 160-bit (20-byte) hash value 410 (digest). 411 412config SPL_SHA256 413 bool "Enable SHA256 support in SPL" 414 default y if SHA256 415 help 416 This option enables support of hashing using SHA256 algorithm. 417 The hash is calculated in software. 418 The SHA256 algorithm produces a 256-bit (32-byte) hash value 419 (digest). 420 421config SPL_SHA512 422 bool "Enable SHA512 support in SPL" 423 default y if SHA512 424 help 425 This option enables support of hashing using SHA512 algorithm. 426 The hash is calculated in software. 427 The SHA512 algorithm produces a 512-bit (64-byte) hash value 428 (digest). 429 430config SPL_SHA384 431 bool "Enable SHA384 support in SPL" 432 default y if SHA384 433 select SPL_SHA512 434 help 435 This option enables support of hashing using SHA384 algorithm. 436 The hash is calculated in software. This is also selects SHA512, 437 because these implementations share the bulk of the code.. 438 The SHA384 algorithm produces a 384-bit (48-byte) hash value 439 (digest). 440 441config SPL_SHA_HW_ACCEL 442 bool "Enable hardware acceleration for SHA hash functions" 443 default y if SHA_HW_ACCEL 444 help 445 This option enables hardware acceleration for the SHA1 and SHA256 446 hashing algorithms. This affects the 'hash' command and also the 447 hash_lookup_algo() function. 448 449config SPL_SHA_PROG_HW_ACCEL 450 bool "Enable Progressive hashing support using hardware in SPL" 451 depends on SHA_PROG_HW_ACCEL 452 default y 453 help 454 This option enables hardware-acceleration for SHA progressive 455 hashing. 456 Data can be streamed in a block at a time and the hashing is 457 performed in hardware. 458 459endif 460 461if SHA_HW_ACCEL 462 463config SHA512_HW_ACCEL 464 bool "Enable hardware acceleration for SHA512" 465 depends on SHA512 466 help 467 This option enables hardware acceleration for the SHA384 and SHA512 468 hashing algorithms. This affects the 'hash' command and also the 469 hash_lookup_algo() function. 470 471config SHA_PROG_HW_ACCEL 472 bool "Enable Progressive hashing support using hardware" 473 help 474 This option enables hardware-acceleration for SHA progressive 475 hashing. 476 Data can be streamed in a block at a time and the hashing is 477 performed in hardware. 478 479endif 480 481config MD5 482 bool "Support MD5 algorithm" 483 help 484 This option enables MD5 support. MD5 is an algorithm designed 485 in 1991 that produces a 16-byte digest (or checksum) from its input 486 data. It has a number of vulnerabilities which preclude its use in 487 security applications, but it can be useful for providing a quick 488 checksum of a block of data. 489 490config SPL_MD5 491 bool "Support MD5 algorithm in SPL" 492 help 493 This option enables MD5 support in SPL. MD5 is an algorithm designed 494 in 1991 that produces a 16-byte digest (or checksum) from its input 495 data. It has a number of vulnerabilities which preclude its use in 496 security applications, but it can be useful for providing a quick 497 checksum of a block of data. 498 499config CRC32 500 def_bool y 501 help 502 Enables CRC32 support in U-Boot. This is normally required. 503 504config CRC32C 505 bool 506 507config XXHASH 508 bool 509 510endmenu 511 512menu "Compression Support" 513 514config LZ4 515 bool "Enable LZ4 decompression support" 516 help 517 If this option is set, support for LZ4 compressed images 518 is included. The LZ4 algorithm can run in-place as long as the 519 compressed image is loaded to the end of the output buffer, and 520 trades lower compression ratios for much faster decompression. 521 522 NOTE: This implements the release version of the LZ4 frame 523 format as generated by default by the 'lz4' command line tool. 524 This is not the same as the outdated, less efficient legacy 525 frame format currently (2015) implemented in the Linux kernel 526 (generated by 'lz4 -l'). The two formats are incompatible. 527 528config LZMA 529 bool "Enable LZMA decompression support" 530 help 531 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm), 532 a dictionary compression algorithm that provides a high compression 533 ratio and fairly fast decompression speed. See also 534 CONFIG_CMD_LZMADEC which provides a decode command. 535 536config LZO 537 bool "Enable LZO decompression support" 538 help 539 This enables support for the LZO compression algorithm. 540 541config GZIP 542 bool "Enable gzip decompression support" 543 select ZLIB 544 default y 545 help 546 This enables support for GZIP compression algorithm. 547 548config ZLIB_UNCOMPRESS 549 bool "Enables zlib's uncompress() functionality" 550 help 551 This enables an extra zlib functionality: the uncompress() function, 552 which decompresses data from a buffer into another, knowing their 553 sizes. Unlike gunzip(), there is no header parsing. 554 555config GZIP_COMPRESSED 556 bool 557 select ZLIB 558 559config BZIP2 560 bool "Enable bzip2 decompression support" 561 help 562 This enables support for BZIP2 compression algorithm. 563 564config ZLIB 565 bool 566 default y 567 help 568 This enables ZLIB compression lib. 569 570config ZSTD 571 bool "Enable Zstandard decompression support" 572 select XXHASH 573 help 574 This enables Zstandard decompression library. 575 576config SPL_LZ4 577 bool "Enable LZ4 decompression support in SPL" 578 help 579 This enables support for the LZ4 decompression algorithm in SPL. LZ4 580 is a lossless data compression algorithm that is focused on 581 fast compression and decompression speed. It belongs to the LZ77 582 family of byte-oriented compression schemes. 583 584config SPL_LZMA 585 bool "Enable LZMA decompression support for SPL build" 586 help 587 This enables support for LZMA compression algorithm for SPL boot. 588 589config SPL_LZO 590 bool "Enable LZO decompression support in SPL" 591 help 592 This enables support for LZO compression algorithm in the SPL. 593 594config SPL_GZIP 595 bool "Enable gzip decompression support for SPL build" 596 select SPL_ZLIB 597 help 598 This enables support for the GZIP compression algorithm for SPL boot. 599 600config SPL_ZLIB 601 bool 602 help 603 This enables compression lib for SPL boot. 604 605config SPL_ZSTD 606 bool "Enable Zstandard decompression support in SPL" 607 select XXHASH 608 help 609 This enables Zstandard decompression library in the SPL. 610 611endmenu 612 613config ERRNO_STR 614 bool "Enable function for getting errno-related string message" 615 help 616 The function errno_str(int errno), returns a pointer to the errno 617 corresponding text message: 618 - if errno is null or positive number - a pointer to "Success" message 619 - if errno is negative - a pointer to errno related message 620 621config HEXDUMP 622 bool "Enable hexdump" 623 help 624 This enables functions for printing dumps of binary data. 625 626config SPL_HEXDUMP 627 bool "Enable hexdump in SPL" 628 depends on SPL && HEXDUMP 629 help 630 This enables functions for printing dumps of binary data in 631 SPL. 632 633config GETOPT 634 bool "Enable getopt" 635 help 636 This enables functions for parsing command-line options. 637 638config OF_LIBFDT 639 bool "Enable the FDT library" 640 default y if OF_CONTROL 641 help 642 This enables the FDT library (libfdt). It provides functions for 643 accessing binary device tree images in memory, such as adding and 644 removing nodes and properties, scanning through the tree and finding 645 particular compatible nodes. The library operates on a flattened 646 version of the device tree. 647 648config OF_LIBFDT_ASSUME_MASK 649 hex "Mask of conditions to assume for libfdt" 650 depends on OF_LIBFDT || FIT 651 default 0 652 help 653 Use this to change the assumptions made by libfdt about the 654 device tree it is working with. A value of 0 means that no assumptions 655 are made, and libfdt is able to deal with malicious data. A value of 656 0xff means all assumptions are made and any invalid data may cause 657 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h 658 659config OF_LIBFDT_OVERLAY 660 bool "Enable the FDT library overlay support" 661 depends on OF_LIBFDT 662 default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE 663 help 664 This enables the FDT library (libfdt) overlay support. 665 666config SPL_OF_LIBFDT 667 bool "Enable the FDT library for SPL" 668 default y if SPL_OF_CONTROL 669 help 670 This enables the FDT library (libfdt). It provides functions for 671 accessing binary device tree images in memory, such as adding and 672 removing nodes and properties, scanning through the tree and finding 673 particular compatible nodes. The library operates on a flattened 674 version of the device tree. 675 676config SPL_OF_LIBFDT_ASSUME_MASK 677 hex "Mask of conditions to assume for libfdt" 678 depends on SPL_OF_LIBFDT || FIT 679 default 0xff 680 help 681 Use this to change the assumptions made by libfdt in SPL about the 682 device tree it is working with. A value of 0 means that no assumptions 683 are made, and libfdt is able to deal with malicious data. A value of 684 0xff means all assumptions are made and any invalid data may cause 685 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h 686 687config TPL_OF_LIBFDT 688 bool "Enable the FDT library for TPL" 689 default y if TPL_OF_CONTROL 690 help 691 This enables the FDT library (libfdt). It provides functions for 692 accessing binary device tree images in memory, such as adding and 693 removing nodes and properties, scanning through the tree and finding 694 particular compatible nodes. The library operates on a flattened 695 version of the device tree. 696 697config TPL_OF_LIBFDT_ASSUME_MASK 698 hex "Mask of conditions to assume for libfdt" 699 depends on TPL_OF_LIBFDT || FIT 700 default 0xff 701 help 702 Use this to change the assumptions made by libfdt in TPL about the 703 device tree it is working with. A value of 0 means that no assumptions 704 are made, and libfdt is able to deal with malicious data. A value of 705 0xff means all assumptions are made and any invalid data may cause 706 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h 707 708config FDT_FIXUP_PARTITIONS 709 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" 710 depends on OF_LIBFDT 711 depends on CMD_MTDPARTS 712 help 713 Allow overwriting defined partitions in the device tree blob 714 using partition info defined in the 'mtdparts' environment 715 variable. 716 717menu "System tables" 718 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) 719 720config BLOBLIST_TABLES 721 bool "Put tables in a bloblist" 722 depends on X86 && BLOBLIST 723 help 724 Normally tables are placed at address 0xf0000 and can be up to 64KB 725 long. With this option, tables are instead placed in the bloblist 726 with a pointer from 0xf0000. The size can then be larger and the 727 tables can be placed high in memory. 728 729config GENERATE_SMBIOS_TABLE 730 bool "Generate an SMBIOS (System Management BIOS) table" 731 default y 732 depends on X86 || EFI_LOADER 733 help 734 The System Management BIOS (SMBIOS) specification addresses how 735 motherboard and system vendors present management information about 736 their products in a standard format by extending the BIOS interface 737 on Intel architecture systems. 738 739 Check http://www.dmtf.org/standards/smbios for details. 740 741 See also SMBIOS_SYSINFO which allows SMBIOS values to be provided in 742 the devicetree. 743 744config LIB_RATIONAL 745 bool "enable continued fraction calculation routines" 746 747config SPL_LIB_RATIONAL 748 bool "enable continued fraction calculation routines for SPL" 749 depends on SPL 750 751endmenu 752 753config ASN1_COMPILER 754 bool 755 756config ASN1_DECODER 757 bool 758 help 759 Enable asn1 decoder library. 760 761config OID_REGISTRY 762 bool 763 help 764 Enable fast lookup object identifier registry. 765 766config SMBIOS_PARSER 767 bool "SMBIOS parser" 768 help 769 A simple parser for SMBIOS data. 770 771source lib/efi/Kconfig 772source lib/efi_loader/Kconfig 773source lib/optee/Kconfig 774 775config TEST_FDTDEC 776 bool "enable fdtdec test" 777 depends on OF_LIBFDT 778 779config LIB_DATE 780 bool 781 782config LIB_ELF 783 bool 784 help 785 Support basic elf loading/validating functions. 786 This supports for 32 bit and 64 bit versions. 787 788config LMB 789 bool "Enable the logical memory blocks library (lmb)" 790 default y if ARC || ARM || M68K || MICROBLAZE || MIPS || NDS32 || \ 791 NIOS2 || PPC || RISCV || SANDBOX || SH || X86 || XTENSA 792 help 793 Support the library logical memory blocks. 794 795config LMB_USE_MAX_REGIONS 796 bool "Use a common number of memory and reserved regions in lmb lib" 797 depends on LMB 798 default y 799 help 800 Define the number of supported memory regions in the library logical 801 memory blocks. 802 This feature allow to reduce the lmb library size by using compiler 803 optimization when LMB_MEMORY_REGIONS == LMB_RESERVED_REGIONS. 804 805config LMB_MAX_REGIONS 806 int "Number of memory and reserved regions in lmb lib" 807 depends on LMB && LMB_USE_MAX_REGIONS 808 default 8 809 help 810 Define the number of supported regions, memory and reserved, in the 811 library logical memory blocks. 812 813config LMB_MEMORY_REGIONS 814 int "Number of memory regions in lmb lib" 815 depends on LMB && !LMB_USE_MAX_REGIONS 816 default 8 817 help 818 Define the number of supported memory regions in the library logical 819 memory blocks. 820 The minimal value is CONFIG_NR_DRAM_BANKS. 821 822config LMB_RESERVED_REGIONS 823 int "Number of reserved regions in lmb lib" 824 depends on LMB && !LMB_USE_MAX_REGIONS 825 default 8 826 help 827 Define the number of supported reserved regions in the library logical 828 memory blocks. 829 830endmenu 831 832config PHANDLE_CHECK_SEQ 833 bool "Enable phandle check while getting sequence number" 834 help 835 When there are multiple device tree nodes with same name, 836 enable this config option to distinguish them using 837 phandles in fdtdec_get_alias_seq() function. 838