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1menu "Library routines"
2
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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
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9 This library only works in the post-relocation phase.
10
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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
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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
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25config BINMAN_FDT
26 bool "Allow access to binman information in the device tree"
56e7257c 27 depends on BINMAN && DM && OF_CONTROL
1621d3c4 28 default y if OF_SEPARATE || OF_EMBED
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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
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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
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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
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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
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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
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63config HAVE_PRIVATE_LIBGCC
64 bool
65
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66config LIB_UUID
67 bool
68
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69config PRINTF
70 bool
71 default y
72
73config SPL_PRINTF
74 bool
75 select SPL_SPRINTF
27084c03 76 select SPL_STRTO if !SPL_USE_TINY_PRINTF
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77
78config TPL_PRINTF
79 bool
80 select TPL_SPRINTF
27084c03 81 select TPL_STRTO if !TPL_USE_TINY_PRINTF
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82
83config SPRINTF
84 bool
85 default y
86
87config SPL_SPRINTF
88 bool
89
90config TPL_SPRINTF
91 bool
92
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93config SSCANF
94 bool
e87dfb05 95
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96config STRTO
97 bool
98 default y
99
100config SPL_STRTO
101 bool
102
103config TPL_STRTO
104 bool
105
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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
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117config USE_PRIVATE_LIBGCC
118 bool "Use private libgcc"
119 depends on HAVE_PRIVATE_LIBGCC
91b86e21 120 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
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121 help
122 This option allows you to use the built-in libgcc implementation
67976306 123 of U-Boot instead of the one provided by the compiler.
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124 If unsure, say N.
125
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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
27084c03 134config SPL_USE_TINY_PRINTF
37ef1774 135 bool "Enable tiny printf() version in SPL"
27084c03 136 depends on SPL
2a51e16b 137 default y
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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
27084c03 146config TPL_USE_TINY_PRINTF
37ef1774 147 bool "Enable tiny printf() version in TPL"
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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
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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
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168config REGEX
169 bool "Enable regular expression support"
f7848d90 170 default y if NET
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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
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177choice
178 prompt "Pseudo-random library support type"
1611235b 179 depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID || \
28cef9ca 180 RNG_SANDBOX || UT_LIB && AES || FAT_WRITE
a5a37567 181 default LIB_RAND
3850dbe8 182 help
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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
43e442a5 191 bool "HW Engine for random library support"
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192
193endchoice
9ba9e85f 194
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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
6e705114 201 size-constrained environments even this may be too big. Enable this
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202 option to reduce code size slightly at the cost of some speed.
203
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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
6e705114 210 size-constrained environments even this may be too big. Enable this
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211 option to reduce code size slightly at the cost of some speed.
212
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213config RBTREE
214 bool
215
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216config BITREVERSE
217 bool "Bit reverse library from Linux"
218
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219config TRACE
220 bool "Support for tracing of function calls and timing"
221 imply CMD_TRACE
a80f8513 222 select TIMER_EARLY
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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
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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
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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
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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
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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
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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
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292source lib/dhry/Kconfig
293
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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
928a8be7 305source lib/ecdsa/Kconfig
d9f23c7f 306source lib/rsa/Kconfig
b4adf627 307source lib/crypto/Kconfig
26dd9936 308source lib/crypt/Kconfig
c4beb22f 309
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310config TPM
311 bool "Trusted Platform Module (TPM) Support"
2419cd16 312 depends on DM
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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
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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
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343endmenu
344
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345menu "Android Verified Boot"
346
347config LIBAVB
348 bool "Android Verified Boot 2.0 support"
349 depends on ANDROID_BOOT_IMAGE
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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
94e3c8c4 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
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376config SHA512
377 bool "Enable SHA512 support"
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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"
e60e4499 386 select SHA512
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387 help
388 This option enables support of hashing using SHA384 algorithm.
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389 The hash is calculated in software. This is also selects SHA512,
390 because these implementations share the bulk of the code..
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391 The SHA384 algorithm produces a 384-bit (48-byte) hash value
392 (digest).
393
94e3c8c4 394config SHA_HW_ACCEL
e2ae483c 395 bool "Enable hardware acceleration for SHA hash functions"
94e3c8c4 396 help
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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
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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
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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
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459endif
460
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461if SHA_HW_ACCEL
462
463config SHA512_HW_ACCEL
464 bool "Enable hardware acceleration for SHA512"
e60e4499 465 depends on SHA512
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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.
94e3c8c4 470
471config SHA_PROG_HW_ACCEL
472 bool "Enable Progressive hashing support using hardware"
94e3c8c4 473 help
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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.
bea79d7d 478
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479endif
480
bea79d7d 481config MD5
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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.
bea79d7d 498
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499config CRC32
500 def_bool y
501 help
502 Enables CRC32 support in U-Boot. This is normally required.
503
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504config CRC32C
505 bool
506
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507config XXHASH
508 bool
509
94e3c8c4 510endmenu
511
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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.
4fa0150d 521
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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
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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
173aafbf 536config LZO
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537 bool "Enable LZO decompression support"
538 help
5145bc73 539 This enables support for the LZO compression algorithm.
7264f292 540
95f4bbd5 541config GZIP
5132361a 542 bool "Enable gzip decompression support"
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543 select ZLIB
544 default y
545 help
546 This enables support for GZIP compression algorithm.
2a2119e1 547
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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
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555config GZIP_COMPRESSED
556 bool
557 select ZLIB
558
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559config BZIP2
560 bool "Enable bzip2 decompression support"
561 help
562 This enables support for BZIP2 compression algorithm.
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563
564config ZLIB
565 bool
566 default y
567 help
568 This enables ZLIB compression lib.
569
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570config ZSTD
571 bool "Enable Zstandard decompression support"
572 select XXHASH
573 help
574 This enables Zstandard decompression library.
575
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576config SPL_LZ4
577 bool "Enable LZ4 decompression support in SPL"
578 help
43e442a5 579 This enables support for the LZ4 decompression algorithm in SPL. LZ4
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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
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584config SPL_LZMA
585 bool "Enable LZMA decompression support for SPL build"
586 help
43e442a5 587 This enables support for LZMA compression algorithm for SPL boot.
04cb3994 588
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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
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594config SPL_GZIP
595 bool "Enable gzip decompression support for SPL build"
596 select SPL_ZLIB
597 help
5145bc73 598 This enables support for the GZIP compression algorithm for SPL boot.
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599
600config SPL_ZLIB
601 bool
602 help
603 This enables compression lib for SPL boot.
604
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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
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611endmenu
612
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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
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621config HEXDUMP
622 bool "Enable hexdump"
623 help
624 This enables functions for printing dumps of binary data.
625
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626config SPL_HEXDUMP
627 bool "Enable hexdump in SPL"
fa3f1f1d 628 depends on SPL && HEXDUMP
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629 help
630 This enables functions for printing dumps of binary data in
631 SPL.
632
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633config GETOPT
634 bool "Enable getopt"
635 help
636 This enables functions for parsing command-line options.
637
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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
f1a7ba1d 644 removing nodes and properties, scanning through the tree and finding
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645 particular compatible nodes. The library operates on a flattened
646 version of the device tree.
647
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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
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659config OF_LIBFDT_OVERLAY
660 bool "Enable the FDT library overlay support"
6417572e 661 depends on OF_LIBFDT
58a46f88 662 default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
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663 help
664 This enables the FDT library (libfdt) overlay support.
665
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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
f1a7ba1d 672 removing nodes and properties, scanning through the tree and finding
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673 particular compatible nodes. The library operates on a flattened
674 version of the device tree.
675
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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
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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
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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
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708config FDT_FIXUP_PARTITIONS
709 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
710 depends on OF_LIBFDT
ab948cd2 711 depends on CMD_MTDPARTS
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712 help
713 Allow overwriting defined partitions in the device tree blob
714 using partition info defined in the 'mtdparts' environment
715 variable.
716
4b6dddc2 717menu "System tables"
e663b350 718 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
4b6dddc2 719
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720config BLOBLIST_TABLES
721 bool "Put tables in a bloblist"
f2c1442e 722 depends on X86 && BLOBLIST
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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
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729config GENERATE_SMBIOS_TABLE
730 bool "Generate an SMBIOS (System Management BIOS) table"
731 default y
e663b350 732 depends on X86 || EFI_LOADER
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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
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741 See also SMBIOS_SYSINFO which allows SMBIOS values to be provided in
742 the devicetree.
743
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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
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751endmenu
752
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753config ASN1_COMPILER
754 bool
755
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756config ASN1_DECODER
757 bool
758 help
759 Enable asn1 decoder library.
760
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761config OID_REGISTRY
762 bool
763 help
764 Enable fast lookup object identifier registry.
765
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766config SMBIOS_PARSER
767 bool "SMBIOS parser"
768 help
769 A simple parser for SMBIOS data.
770
867a6ac8 771source lib/efi/Kconfig
ed980b8c 772source lib/efi_loader/Kconfig
32ce6179 773source lib/optee/Kconfig
867a6ac8 774
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775config TEST_FDTDEC
776 bool "enable fdtdec test"
777 depends on OF_LIBFDT
778
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779config LIB_DATE
780 bool
781
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782config LIB_ELF
783 bool
784 help
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785 Support basic elf loading/validating functions.
786 This supports for 32 bit and 64 bit versions.
805b3cac 787
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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
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795config LMB_USE_MAX_REGIONS
796 bool "Use a commun 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.
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804
805config LMB_MAX_REGIONS
806 int "Number of memory and reserved regions in lmb lib"
6d66502b 807 depends on LMB && LMB_USE_MAX_REGIONS
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808 default 8
809 help
810 Define the number of supported regions, memory and reserved, in the
811 library logical memory blocks.
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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
ed36323f 830endmenu
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831
832config PHANDLE_CHECK_SEQ
833 bool "Enable phandle check while getting sequence number"
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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.
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