blob: 7f6a754ca5074037e3c39fd2e043a050abf2bc2f [file] [log] [blame]
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +09001menu "Library routines"
2
Marek Szyprowski795dc7d2020-06-03 14:43:40 +02003config 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
Bin Meng0a5fee52021-02-25 17:22:36 +08009 This library only works in the post-relocation phase.
10
Marek Szyprowski795dc7d2020-06-03 14:43:40 +020011config 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
Simon Glassef9e7622021-11-24 09:26:42 -070018config PHYSMEM
19 bool "Access to physical memory region (> 4G)"
20 help
21 Some basic support is provided for operations on memory not
22 normally accessible to 32-bit U-Boot - e.g. some architectures
23 support access to more than 4G of memory on 32-bit
24 machines using physical address extension or similar.
25 Enable this to access this basic support, which only supports clearing
26 the memory.
27
Adam Ford02bf5362017-08-11 09:46:05 -050028config BCH
29 bool "Enable Software based BCH ECC"
30 help
31 Enables software based BCH ECC algorithm present in lib/bch.c
32 This is used by SoC platforms which do not have built-in ELM
33 hardware engine required for BCH ECC correction.
34
Simon Glassdd7fb9b2019-12-06 21:41:34 -070035config BINMAN_FDT
36 bool "Allow access to binman information in the device tree"
Bin Mengc5e8b312021-02-03 21:20:02 +080037 depends on BINMAN && DM && OF_CONTROL
Bin Mengc9155f12021-05-10 20:23:36 +080038 default y if OF_SEPARATE || OF_EMBED
Simon Glassdd7fb9b2019-12-06 21:41:34 -070039 help
40 This enables U-Boot to access information about binman entries,
41 stored in the device tree in a binman node. Typical uses are to
42 locate entries in the firmware image. See binman.h for the available
43 functionality.
44
Masahiro Yamada3f053fe2014-09-16 16:32:59 +090045config CC_OPTIMIZE_LIBS_FOR_SPEED
46 bool "Optimize libraries for speed"
47 help
48 Enabling this option will pass "-O2" to gcc when compiling
49 under "lib" directory.
50
51 If unsure, say N.
52
Simon Glassc17db992021-07-02 12:36:17 -060053config CHARSET
54 bool
Simon Glass7c159432021-12-29 11:57:35 -070055 default y if UT_UNICODE || EFI_LOADER || UFS || EFI_APP
Simon Glassc17db992021-07-02 12:36:17 -060056 help
57 Enables support for various conversions between different
58 character sets, such as between unicode representations and
59 different 'code pages'.
60
Faiz Abbas6199fb12018-02-06 19:15:58 +053061config DYNAMIC_CRC_TABLE
62 bool "Enable Dynamic tables for CRC"
63 help
64 Enable this option to calculate entries for CRC tables at runtime.
65 This can be helpful when reducing the size of the build image
66
Bin Mengb95e9db2018-10-15 02:21:15 -070067config HAVE_ARCH_IOMAP
68 bool
69 help
70 Enable this option if architecture provides io{read,write}{8,16,32}
71 I/O accessor functions.
72
Masahiro Yamada9520b712014-10-24 01:30:43 +090073config HAVE_PRIVATE_LIBGCC
74 bool
75
Adam Ford70c8f052018-02-06 12:14:28 -060076config LIB_UUID
77 bool
78
Alex Kiernan5b404282018-04-19 04:32:54 +000079config PRINTF
80 bool
81 default y
82
83config SPL_PRINTF
84 bool
85 select SPL_SPRINTF
Simon Glass7611ac62019-09-25 08:56:27 -060086 select SPL_STRTO if !SPL_USE_TINY_PRINTF
Alex Kiernan5b404282018-04-19 04:32:54 +000087
88config TPL_PRINTF
89 bool
90 select TPL_SPRINTF
Simon Glass7611ac62019-09-25 08:56:27 -060091 select TPL_STRTO if !TPL_USE_TINY_PRINTF
Alex Kiernan5b404282018-04-19 04:32:54 +000092
93config SPRINTF
94 bool
95 default y
96
97config SPL_SPRINTF
98 bool
99
100config TPL_SPRINTF
101 bool
102
Andrii Anisov6e29ac42020-08-06 12:42:52 +0300103config SSCANF
104 bool
Andrii Anisov6e29ac42020-08-06 12:42:52 +0300105
Alex Kiernan5b404282018-04-19 04:32:54 +0000106config STRTO
107 bool
108 default y
109
110config SPL_STRTO
111 bool
112
113config TPL_STRTO
114 bool
115
Alex Kiernanc568bcb2018-05-29 15:30:52 +0000116config IMAGE_SPARSE
117 bool
118
119config IMAGE_SPARSE_FILLBUF_SIZE
120 hex "Android sparse image CHUNK_TYPE_FILL buffer size"
121 default 0x80000
122 depends on IMAGE_SPARSE
123 help
124 Set the size of the fill buffer used when processing CHUNK_TYPE_FILL
125 chunks.
126
Masahiro Yamada9520b712014-10-24 01:30:43 +0900127config USE_PRIVATE_LIBGCC
128 bool "Use private libgcc"
129 depends on HAVE_PRIVATE_LIBGCC
Marek Vasut4e0126e2016-05-26 18:01:47 +0200130 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
Masahiro Yamada9520b712014-10-24 01:30:43 +0900131 help
132 This option allows you to use the built-in libgcc implementation
Masahiro Yamada1c6a5e42016-03-30 20:17:42 +0900133 of U-Boot instead of the one provided by the compiler.
Masahiro Yamada9520b712014-10-24 01:30:43 +0900134 If unsure, say N.
135
Masahiro Yamadae301fa02014-10-24 01:30:40 +0900136config SYS_HZ
137 int
138 default 1000
139 help
140 The frequency of the timer returned by get_timer().
141 get_timer() must operate in milliseconds and this option must be
142 set to 1000.
143
Simon Glass7611ac62019-09-25 08:56:27 -0600144config SPL_USE_TINY_PRINTF
Thomas Hebb0c12fb52019-11-10 08:23:53 -0800145 bool "Enable tiny printf() version in SPL"
Simon Glass7611ac62019-09-25 08:56:27 -0600146 depends on SPL
Tom Rinid0502b72019-06-08 12:46:18 -0400147 default y
Stefan Roese363ab7b2015-11-23 07:00:22 +0100148 help
149 This option enables a tiny, stripped down printf version.
150 This should only be used in space limited environments,
151 like SPL versions with hard memory limits. This version
152 reduces the code size by about 2.5KiB on armv7.
153
154 The supported format specifiers are %c, %s, %u/%d and %x.
155
Simon Glass7611ac62019-09-25 08:56:27 -0600156config TPL_USE_TINY_PRINTF
Thomas Hebb0c12fb52019-11-10 08:23:53 -0800157 bool "Enable tiny printf() version in TPL"
Simon Glass7611ac62019-09-25 08:56:27 -0600158 depends on TPL
159 default y if SPL_USE_TINY_PRINTF
160 help
161 This option enables a tiny, stripped down printf version.
162 This should only be used in space limited environments,
163 like SPL versions with hard memory limits. This version
164 reduces the code size by about 2.5KiB on armv7.
165
166 The supported format specifiers are %c, %s, %u/%d and %x.
167
Masahiro Yamadaacede7a2017-12-04 12:37:00 +0900168config PANIC_HANG
169 bool "Do not reset the system on fatal error"
170 help
171 Define this option to stop the system in case of a fatal error,
172 so that you have to reset it manually. This is probably NOT a good
173 idea for an embedded system where you want the system to reboot
174 automatically as fast as possible, but it may be useful during
175 development since you can try to debug the conditions that lead to
176 the situation.
177
Joe Hershberger937d3e82015-04-21 17:02:42 -0500178config REGEX
179 bool "Enable regular expression support"
Joe Hershberger8ab8b722015-06-22 17:57:36 -0500180 default y if NET
Joe Hershberger937d3e82015-04-21 17:02:42 -0500181 help
182 If this variable is defined, U-Boot is linked against the
183 SLRE (Super Light Regular Expression) library, which adds
184 regex support to some commands, for example "env grep" and
185 "setexpr".
186
Adam Ford38003a62018-02-06 10:18:18 -0600187choice
188 prompt "Pseudo-random library support type"
Heinrich Schuchardtb2e67a22020-01-19 19:28:12 +0100189 depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID || \
Heinrich Schuchardtba9c44e2020-11-20 12:55:22 +0100190 RNG_SANDBOX || UT_LIB && AES || FAT_WRITE
Adam Ford38003a62018-02-06 10:18:18 -0600191 default LIB_RAND
Masahiro Yamada2743c072015-06-11 19:16:43 +0900192 help
Adam Ford38003a62018-02-06 10:18:18 -0600193 Select the library to provide pseudo-random number generator
194 functions. LIB_HW_RAND supports certain hardware engines that
195 provide this functionality. If in doubt, select LIB_RAND.
196
197config LIB_RAND
198 bool "Pseudo-random library support"
199
200config LIB_HW_RAND
Marcin Juszkiewicza360c2c2020-05-26 19:07:15 +0200201 bool "HW Engine for random library support"
Adam Ford38003a62018-02-06 10:18:18 -0600202
203endchoice
Michal Simek2c1b1db2015-05-25 11:37:22 +0200204
Simon Glassa6cee932021-12-01 09:02:36 -0700205config SUPPORT_ACPI
206 bool
207 help
208 Enable this if your arch or board can support generating ACPI
209 (Advanced Configuration and Power Interface) tables. In this case
210 U-Boot can generate these tables and pass them to the Operating
211 System.
212
213config GENERATE_ACPI_TABLE
214 bool "Generate an ACPI (Advanced Configuration and Power Interface) table"
215 depends on SUPPORT_ACPI
216 select QFW if QEMU
217 help
218 The Advanced Configuration and Power Interface (ACPI) specification
219 provides an open standard for device configuration and management
220 by the operating system. It defines platform-independent interfaces
221 for configuration and power management monitoring.
222
Simon Glasse2f94ae2017-04-02 09:50:28 -0600223config SPL_TINY_MEMSET
224 bool "Use a very small memset() in SPL"
225 help
226 The faster memset() is the arch-specific one (if available) enabled
227 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
228 better performance by writing a word at a time. But in very
Chris Packham1c3b7ba2019-01-13 22:13:28 +1300229 size-constrained environments even this may be too big. Enable this
Simon Glasse2f94ae2017-04-02 09:50:28 -0600230 option to reduce code size slightly at the cost of some speed.
231
Philipp Tomsichfefc4ec2017-08-03 22:52:04 +0200232config TPL_TINY_MEMSET
233 bool "Use a very small memset() in TPL"
234 help
235 The faster memset() is the arch-specific one (if available) enabled
236 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
237 better performance by writing a word at a time. But in very
Chris Packham1c3b7ba2019-01-13 22:13:28 +1300238 size-constrained environments even this may be too big. Enable this
Philipp Tomsichfefc4ec2017-08-03 22:52:04 +0200239 option to reduce code size slightly at the cost of some speed.
240
Boris Brezillon627dc182017-02-27 18:22:05 +0100241config RBTREE
242 bool
243
Nandor Hand5ea84a2017-11-08 15:35:14 +0000244config BITREVERSE
245 bool "Bit reverse library from Linux"
246
Simon Glassbfce7fc2019-04-08 13:20:51 -0600247config TRACE
248 bool "Support for tracing of function calls and timing"
249 imply CMD_TRACE
Pragnesh Patel0dd501a2021-01-17 18:11:24 +0530250 select TIMER_EARLY
Simon Glassbfce7fc2019-04-08 13:20:51 -0600251 help
252 Enables function tracing within U-Boot. This allows recording of call
253 traces including timing information. The command can write data to
254 memory for exporting for analysis (e.g. using bootchart).
255 See doc/README.trace for full details.
256
Simon Glass445078e2019-04-08 13:20:52 -0600257config TRACE_BUFFER_SIZE
258 hex "Size of trace buffer in U-Boot"
259 depends on TRACE
260 default 0x01000000
261 help
262 Sets the size of the trace buffer in U-Boot. This is allocated from
263 memory during relocation. If this buffer is too small, the trace
264 history will be truncated, with later records omitted.
265
266 If early trace is enabled (i.e. before relocation), this buffer must
267 be large enough to include all the data from the early trace buffer as
268 well, since this is copied over to the main buffer during relocation.
269
270 A trace record is emitted for each function call and each record is
271 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
272 the size is too small then 'trace stats' will show a message saying
273 how many records were dropped due to buffer overflow.
274
Heinrich Schuchardtc1a73792019-06-02 13:30:09 +0200275config TRACE_CALL_DEPTH_LIMIT
276 int "Trace call depth limit"
277 depends on TRACE
278 default 15
279 help
280 Sets the maximum call depth up to which function calls are recorded.
281
Simon Glass445078e2019-04-08 13:20:52 -0600282config TRACE_EARLY
283 bool "Enable tracing before relocation"
284 depends on TRACE
285 help
286 Sometimes it is helpful to trace execution of U-Boot before
287 relocation. This is possible by using a arch-specific, fixed buffer
288 position in memory. Enable this option to start tracing as early as
289 possible after U-Boot starts.
290
291config TRACE_EARLY_SIZE
292 hex "Size of early trace buffer in U-Boot"
293 depends on TRACE_EARLY
294 default 0x00100000
295 help
296 Sets the size of the early trace buffer in bytes. This is used to hold
297 tracing information before relocation.
298
Heinrich Schuchardtc1a73792019-06-02 13:30:09 +0200299config TRACE_EARLY_CALL_DEPTH_LIMIT
300 int "Early trace call depth limit"
301 depends on TRACE_EARLY
302 default 200
303 help
304 Sets the maximum call depth up to which function calls are recorded
305 during early tracing.
306
Simon Glass445078e2019-04-08 13:20:52 -0600307config TRACE_EARLY_ADDR
308 hex "Address of early trace buffer in U-Boot"
309 depends on TRACE_EARLY
310 default 0x00100000
311 help
312 Sets the address of the early trace buffer in U-Boot. This memory
313 must be accessible before relocation.
314
315 A trace record is emitted for each function call and each record is
316 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
317 the size is too small then the message which says the amount of early
318 data being coped will the the same as the
319
Simon Glass99dbe4b2015-06-23 15:38:23 -0600320source lib/dhry/Kconfig
321
Simon Glass528fdd12017-04-26 22:27:49 -0600322menu "Security support"
323
324config AES
325 bool "Support the AES algorithm"
326 help
327 This provides a means to encrypt and decrypt data using the AES
328 (Advanced Encryption Standard). This algorithm uses a symetric key
329 and is widely used as a streaming cipher. Different key lengths are
330 supported by the algorithm but only a 128-bit key is supported at
331 present.
332
Alexandru Gagniuc48cb9b82021-07-29 11:47:16 -0500333source lib/ecdsa/Kconfig
Ruchika Gupta4acd8c42015-01-23 16:01:56 +0530334source lib/rsa/Kconfig
AKASHI Takahiro591535c2019-11-13 09:45:00 +0900335source lib/crypto/Kconfig
Steffen Jaeckel229bd512021-07-08 15:57:33 +0200336source lib/crypt/Kconfig
Ruchika Gupta2c3822e2015-01-23 16:01:51 +0530337
Simon Glass350497c2015-08-22 18:31:19 -0600338config TPM
339 bool "Trusted Platform Module (TPM) Support"
Simon Glasscf294b02015-10-03 06:39:36 -0600340 depends on DM
Simon Glass350497c2015-08-22 18:31:19 -0600341 help
342 This enables support for TPMs which can be used to provide security
343 features for your board. The TPM can be connected via LPC or I2C
344 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
345 command to interactive the TPM. Driver model support is provided
346 for the low-level TPM interface, but only one TPM is supported at
347 a time by the TPM library.
348
Simon Glass93a45b12018-10-01 12:22:19 -0600349config SPL_TPM
350 bool "Trusted Platform Module (TPM) Support in SPL"
351 depends on SPL_DM
352 help
353 This enables support for TPMs which can be used to provide security
354 features for your board. The TPM can be connected via LPC or I2C
355 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
356 command to interactive the TPM. Driver model support is provided
357 for the low-level TPM interface, but only one TPM is supported at
358 a time by the TPM library.
359
360config TPL_TPM
361 bool "Trusted Platform Module (TPM) Support in TPL"
362 depends on TPL_DM
363 help
364 This enables support for TPMs which can be used to provide security
365 features for your board. The TPM can be connected via LPC or I2C
366 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
367 command to interactive the TPM. Driver model support is provided
368 for the low-level TPM interface, but only one TPM is supported at
369 a time by the TPM library.
370
Simon Glass528fdd12017-04-26 22:27:49 -0600371endmenu
372
Igor Opaniuk525d1d82018-06-03 21:56:37 +0300373menu "Android Verified Boot"
374
375config LIBAVB
376 bool "Android Verified Boot 2.0 support"
377 depends on ANDROID_BOOT_IMAGE
Igor Opaniuk525d1d82018-06-03 21:56:37 +0300378 help
379 This enables support of Android Verified Boot 2.0 which can be used
380 to assure the end user of the integrity of the software running on a
381 device. Introduces such features as boot chain of trust, rollback
382 protection etc.
383
384endmenu
385
gaurav ranaef201592015-02-20 12:51:46 +0530386menu "Hashing Support"
387
Qu Wenruob98e8a22021-12-27 14:12:07 +0800388config BLAKE2
389 bool "Enable BLAKE2 support"
390 help
391 This option enables support of hashing using BLAKE2B algorithm.
392 The hash is calculated in software.
393 The BLAKE2 algorithm produces a hash value (digest) between 1 and
394 64 bytes.
395
gaurav ranaef201592015-02-20 12:51:46 +0530396config SHA1
397 bool "Enable SHA1 support"
398 help
399 This option enables support of hashing using SHA1 algorithm.
400 The hash is calculated in software.
401 The SHA1 algorithm produces a 160-bit (20-byte) hash value
402 (digest).
403
404config SHA256
405 bool "Enable SHA256 support"
406 help
407 This option enables support of hashing using SHA256 algorithm.
408 The hash is calculated in software.
409 The SHA256 algorithm produces a 256-bit (32-byte) hash value
410 (digest).
411
Reuben Dowle1908fd92020-04-16 17:36:52 +1200412config SHA512
413 bool "Enable SHA512 support"
Reuben Dowle1908fd92020-04-16 17:36:52 +1200414 help
415 This option enables support of hashing using SHA512 algorithm.
416 The hash is calculated in software.
417 The SHA512 algorithm produces a 512-bit (64-byte) hash value
418 (digest).
419
420config SHA384
421 bool "Enable SHA384 support"
Alexandru Gagniuc5df5d692021-09-02 19:54:18 -0500422 select SHA512
Reuben Dowle1908fd92020-04-16 17:36:52 +1200423 help
424 This option enables support of hashing using SHA384 algorithm.
Alexandru Gagniuc5df5d692021-09-02 19:54:18 -0500425 The hash is calculated in software. This is also selects SHA512,
426 because these implementations share the bulk of the code..
Reuben Dowle1908fd92020-04-16 17:36:52 +1200427 The SHA384 algorithm produces a 384-bit (48-byte) hash value
428 (digest).
429
gaurav ranaef201592015-02-20 12:51:46 +0530430config SHA_HW_ACCEL
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200431 bool "Enable hardware acceleration for SHA hash functions"
gaurav ranaef201592015-02-20 12:51:46 +0530432 help
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200433 This option enables hardware acceleration for the SHA1 and SHA256
434 hashing algorithms. This affects the 'hash' command and also the
435 hash_lookup_algo() function.
436
Simon Glassf7b37c22021-09-25 19:43:17 -0600437if SPL
438
439config SPL_SHA1
440 bool "Enable SHA1 support in SPL"
441 default y if SHA1
442 help
443 This option enables support of hashing using SHA1 algorithm.
444 The hash is calculated in software.
445 The SHA1 algorithm produces a 160-bit (20-byte) hash value
446 (digest).
447
448config SPL_SHA256
449 bool "Enable SHA256 support in SPL"
450 default y if SHA256
451 help
452 This option enables support of hashing using SHA256 algorithm.
453 The hash is calculated in software.
454 The SHA256 algorithm produces a 256-bit (32-byte) hash value
455 (digest).
456
457config SPL_SHA512
458 bool "Enable SHA512 support in SPL"
459 default y if SHA512
460 help
461 This option enables support of hashing using SHA512 algorithm.
462 The hash is calculated in software.
463 The SHA512 algorithm produces a 512-bit (64-byte) hash value
464 (digest).
465
466config SPL_SHA384
467 bool "Enable SHA384 support in SPL"
468 default y if SHA384
469 select SPL_SHA512
470 help
471 This option enables support of hashing using SHA384 algorithm.
472 The hash is calculated in software. This is also selects SHA512,
473 because these implementations share the bulk of the code..
474 The SHA384 algorithm produces a 384-bit (48-byte) hash value
475 (digest).
476
Simon Glass383dd572021-09-25 19:43:18 -0600477config SPL_SHA_HW_ACCEL
478 bool "Enable hardware acceleration for SHA hash functions"
479 default y if SHA_HW_ACCEL
480 help
481 This option enables hardware acceleration for the SHA1 and SHA256
482 hashing algorithms. This affects the 'hash' command and also the
483 hash_lookup_algo() function.
484
485config SPL_SHA_PROG_HW_ACCEL
486 bool "Enable Progressive hashing support using hardware in SPL"
487 depends on SHA_PROG_HW_ACCEL
488 default y
489 help
490 This option enables hardware-acceleration for SHA progressive
491 hashing.
492 Data can be streamed in a block at a time and the hashing is
493 performed in hardware.
494
Simon Glassf7b37c22021-09-25 19:43:17 -0600495endif
496
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200497if SHA_HW_ACCEL
498
499config SHA512_HW_ACCEL
500 bool "Enable hardware acceleration for SHA512"
Alexandru Gagniuc5df5d692021-09-02 19:54:18 -0500501 depends on SHA512
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200502 help
503 This option enables hardware acceleration for the SHA384 and SHA512
504 hashing algorithms. This affects the 'hash' command and also the
505 hash_lookup_algo() function.
gaurav ranaef201592015-02-20 12:51:46 +0530506
507config SHA_PROG_HW_ACCEL
508 bool "Enable Progressive hashing support using hardware"
gaurav ranaef201592015-02-20 12:51:46 +0530509 help
Joel Stanley92efc1f2021-02-17 13:50:42 +1030510 This option enables hardware-acceleration for SHA progressive
511 hashing.
512 Data can be streamed in a block at a time and the hashing is
513 performed in hardware.
Andre Przywaraf0fa1132017-03-15 01:19:05 +0000514
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200515endif
516
Andre Przywaraf0fa1132017-03-15 01:19:05 +0000517config MD5
Simon Glassd33d0db2020-05-06 08:03:56 -0600518 bool "Support MD5 algorithm"
519 help
520 This option enables MD5 support. MD5 is an algorithm designed
521 in 1991 that produces a 16-byte digest (or checksum) from its input
522 data. It has a number of vulnerabilities which preclude its use in
523 security applications, but it can be useful for providing a quick
524 checksum of a block of data.
525
526config SPL_MD5
527 bool "Support MD5 algorithm in SPL"
528 help
529 This option enables MD5 support in SPL. MD5 is an algorithm designed
530 in 1991 that produces a 16-byte digest (or checksum) from its input
531 data. It has a number of vulnerabilities which preclude its use in
532 security applications, but it can be useful for providing a quick
533 checksum of a block of data.
Andre Przywaraf0fa1132017-03-15 01:19:05 +0000534
Simon Glass577226c2021-09-25 19:43:24 -0600535config CRC32
536 def_bool y
537 help
538 Enables CRC32 support in U-Boot. This is normally required.
539
Marek Behúncdccc032017-09-03 17:00:23 +0200540config CRC32C
541 bool
542
Marek Behúnb139a7f2019-04-29 22:40:43 +0200543config XXHASH
544 bool
545
gaurav ranaef201592015-02-20 12:51:46 +0530546endmenu
547
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700548menu "Compression Support"
549
550config LZ4
551 bool "Enable LZ4 decompression support"
552 help
553 If this option is set, support for LZ4 compressed images
554 is included. The LZ4 algorithm can run in-place as long as the
555 compressed image is loaded to the end of the output buffer, and
556 trades lower compression ratios for much faster decompression.
Patrick Delaunaycd831af2021-03-10 10:16:28 +0100557
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700558 NOTE: This implements the release version of the LZ4 frame
559 format as generated by default by the 'lz4' command line tool.
560 This is not the same as the outdated, less efficient legacy
561 frame format currently (2015) implemented in the Linux kernel
562 (generated by 'lz4 -l'). The two formats are incompatible.
563
Simon Glass264aa5f2017-05-17 03:25:42 -0600564config LZMA
565 bool "Enable LZMA decompression support"
566 help
567 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
568 a dictionary compression algorithm that provides a high compression
569 ratio and fairly fast decompression speed. See also
570 CONFIG_CMD_LZMADEC which provides a decode command.
571
Boris Brezillonaa57d0f2017-02-27 18:22:06 +0100572config LZO
Tom Rinic20bb732017-07-22 18:36:16 -0400573 bool "Enable LZO decompression support"
574 help
Oleksandr Suvorov30a4c312021-09-01 16:05:08 +0300575 This enables support for the LZO compression algorithm.
York Suna6945fe2017-08-15 11:14:43 -0700576
Marek Vasutaeaa29d2019-03-08 16:06:55 +0100577config GZIP
Heiko Schocherb93cc602019-04-29 08:59:38 +0200578 bool "Enable gzip decompression support"
Marek Vasutaeaa29d2019-03-08 16:06:55 +0100579 select ZLIB
580 default y
581 help
582 This enables support for GZIP compression algorithm.
583
Joao Marcos Costaae8abb12020-07-30 15:33:49 +0200584config ZLIB_UNCOMPRESS
585 bool "Enables zlib's uncompress() functionality"
586 help
587 This enables an extra zlib functionality: the uncompress() function,
588 which decompresses data from a buffer into another, knowing their
589 sizes. Unlike gunzip(), there is no header parsing.
590
Michael Walle3a6e3512020-05-22 14:07:36 +0200591config GZIP_COMPRESSED
592 bool
593 select ZLIB
594
Atish Patra1fa79622020-03-05 16:24:21 -0800595config BZIP2
596 bool "Enable bzip2 decompression support"
597 help
598 This enables support for BZIP2 compression algorithm.
599
Marek Vasutaeaa29d2019-03-08 16:06:55 +0100600config ZLIB
601 bool
602 default y
603 help
604 This enables ZLIB compression lib.
605
Marek Behúne87e2002019-04-29 22:40:44 +0200606config ZSTD
607 bool "Enable Zstandard decompression support"
608 select XXHASH
609 help
610 This enables Zstandard decompression library.
611
Simon Glasse107bcd2018-11-06 15:21:30 -0700612config SPL_LZ4
613 bool "Enable LZ4 decompression support in SPL"
614 help
Marcin Juszkiewicza360c2c2020-05-26 19:07:15 +0200615 This enables support for the LZ4 decompression algorithm in SPL. LZ4
Simon Glasse107bcd2018-11-06 15:21:30 -0700616 is a lossless data compression algorithm that is focused on
617 fast compression and decompression speed. It belongs to the LZ77
618 family of byte-oriented compression schemes.
619
developer6a4e1d32020-04-21 09:28:38 +0200620config SPL_LZMA
621 bool "Enable LZMA decompression support for SPL build"
622 help
Marcin Juszkiewicza360c2c2020-05-26 19:07:15 +0200623 This enables support for LZMA compression algorithm for SPL boot.
developer6a4e1d32020-04-21 09:28:38 +0200624
Jean-Jacques Hiblotdbde2882017-09-15 12:57:30 +0200625config SPL_LZO
626 bool "Enable LZO decompression support in SPL"
627 help
628 This enables support for LZO compression algorithm in the SPL.
629
York Suna6945fe2017-08-15 11:14:43 -0700630config SPL_GZIP
631 bool "Enable gzip decompression support for SPL build"
632 select SPL_ZLIB
633 help
Oleksandr Suvorov30a4c312021-09-01 16:05:08 +0300634 This enables support for the GZIP compression algorithm for SPL boot.
York Suna6945fe2017-08-15 11:14:43 -0700635
636config SPL_ZLIB
637 bool
638 help
639 This enables compression lib for SPL boot.
640
Marek Behúne87e2002019-04-29 22:40:44 +0200641config SPL_ZSTD
642 bool "Enable Zstandard decompression support in SPL"
643 select XXHASH
644 help
645 This enables Zstandard decompression library in the SPL.
646
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700647endmenu
648
Przemyslaw Marczak37550132015-04-20 20:07:40 +0200649config ERRNO_STR
650 bool "Enable function for getting errno-related string message"
651 help
652 The function errno_str(int errno), returns a pointer to the errno
653 corresponding text message:
654 - if errno is null or positive number - a pointer to "Success" message
655 - if errno is negative - a pointer to errno related message
656
Alexey Brodkin2d2fa492018-06-05 17:17:57 +0300657config HEXDUMP
658 bool "Enable hexdump"
659 help
660 This enables functions for printing dumps of binary data.
661
Simon Glassa37fd4d2020-09-12 11:13:35 -0600662config SPL_HEXDUMP
663 bool "Enable hexdump in SPL"
Heinrich Schuchardt11df0722021-07-24 17:35:46 +0200664 depends on SPL && HEXDUMP
Simon Glassa37fd4d2020-09-12 11:13:35 -0600665 help
666 This enables functions for printing dumps of binary data in
667 SPL.
668
Sean Anderson3b4a6f52020-10-27 19:55:36 -0400669config GETOPT
670 bool "Enable getopt"
671 help
672 This enables functions for parsing command-line options.
673
Simon Glassa66c5412016-02-22 22:55:42 -0700674config OF_LIBFDT
675 bool "Enable the FDT library"
676 default y if OF_CONTROL
677 help
678 This enables the FDT library (libfdt). It provides functions for
679 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinda707d42017-08-18 17:58:51 +0200680 removing nodes and properties, scanning through the tree and finding
Simon Glassa66c5412016-02-22 22:55:42 -0700681 particular compatible nodes. The library operates on a flattened
682 version of the device tree.
683
Simon Glassc48044d2019-10-27 09:47:40 -0600684config OF_LIBFDT_ASSUME_MASK
685 hex "Mask of conditions to assume for libfdt"
686 depends on OF_LIBFDT || FIT
687 default 0
688 help
689 Use this to change the assumptions made by libfdt about the
690 device tree it is working with. A value of 0 means that no assumptions
691 are made, and libfdt is able to deal with malicious data. A value of
692 0xff means all assumptions are made and any invalid data may cause
693 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
694
Maxime Ripard9e901ce2016-07-05 10:26:44 +0200695config OF_LIBFDT_OVERLAY
696 bool "Enable the FDT library overlay support"
Tom Rinic1e49ba2018-05-08 08:52:17 -0400697 depends on OF_LIBFDT
Praneeth Bajjuri7b71a012018-04-25 16:03:23 -0500698 default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
Maxime Ripard9e901ce2016-07-05 10:26:44 +0200699 help
700 This enables the FDT library (libfdt) overlay support.
701
Simon Glass8b426922016-02-22 22:55:45 -0700702config SPL_OF_LIBFDT
703 bool "Enable the FDT library for SPL"
704 default y if SPL_OF_CONTROL
705 help
706 This enables the FDT library (libfdt). It provides functions for
707 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinda707d42017-08-18 17:58:51 +0200708 removing nodes and properties, scanning through the tree and finding
Simon Glass8b426922016-02-22 22:55:45 -0700709 particular compatible nodes. The library operates on a flattened
710 version of the device tree.
711
Simon Glassc48044d2019-10-27 09:47:40 -0600712config SPL_OF_LIBFDT_ASSUME_MASK
713 hex "Mask of conditions to assume for libfdt"
714 depends on SPL_OF_LIBFDT || FIT
715 default 0xff
716 help
717 Use this to change the assumptions made by libfdt in SPL about the
718 device tree it is working with. A value of 0 means that no assumptions
719 are made, and libfdt is able to deal with malicious data. A value of
720 0xff means all assumptions are made and any invalid data may cause
721 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
722
Simon Glassca8ec4b2018-10-01 12:22:21 -0600723config TPL_OF_LIBFDT
724 bool "Enable the FDT library for TPL"
725 default y if TPL_OF_CONTROL
726 help
727 This enables the FDT library (libfdt). It provides functions for
728 accessing binary device tree images in memory, such as adding and
729 removing nodes and properties, scanning through the tree and finding
730 particular compatible nodes. The library operates on a flattened
731 version of the device tree.
732
Simon Glassc48044d2019-10-27 09:47:40 -0600733config TPL_OF_LIBFDT_ASSUME_MASK
734 hex "Mask of conditions to assume for libfdt"
735 depends on TPL_OF_LIBFDT || FIT
736 default 0xff
737 help
738 Use this to change the assumptions made by libfdt in TPL about the
739 device tree it is working with. A value of 0 means that no assumptions
740 are made, and libfdt is able to deal with malicious data. A value of
741 0xff means all assumptions are made and any invalid data may cause
742 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
743
Heiko Schocherc9ab9102016-10-06 07:31:45 +0200744config FDT_FIXUP_PARTITIONS
745 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
746 depends on OF_LIBFDT
Masahiro Yamada734b7552018-07-20 11:04:09 +0900747 depends on CMD_MTDPARTS
Heiko Schocherc9ab9102016-10-06 07:31:45 +0200748 help
749 Allow overwriting defined partitions in the device tree blob
750 using partition info defined in the 'mtdparts' environment
751 variable.
752
Alexander Graffb228082016-08-19 01:23:23 +0200753menu "System tables"
Alexander Graf66f96e12016-08-19 01:23:29 +0200754 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
Alexander Graffb228082016-08-19 01:23:23 +0200755
Simon Glass5d093f32020-11-04 09:57:25 -0700756config BLOBLIST_TABLES
757 bool "Put tables in a bloblist"
Simon Glass171c6462021-03-15 18:11:22 +1300758 depends on X86 && BLOBLIST
Simon Glass5d093f32020-11-04 09:57:25 -0700759 help
760 Normally tables are placed at address 0xf0000 and can be up to 64KB
761 long. With this option, tables are instead placed in the bloblist
762 with a pointer from 0xf0000. The size can then be larger and the
763 tables can be placed high in memory.
764
Alexander Graffb228082016-08-19 01:23:23 +0200765config GENERATE_SMBIOS_TABLE
766 bool "Generate an SMBIOS (System Management BIOS) table"
767 default y
Alexander Graf66f96e12016-08-19 01:23:29 +0200768 depends on X86 || EFI_LOADER
Alexander Graffb228082016-08-19 01:23:23 +0200769 help
770 The System Management BIOS (SMBIOS) specification addresses how
771 motherboard and system vendors present management information about
772 their products in a standard format by extending the BIOS interface
773 on Intel architecture systems.
774
775 Check http://www.dmtf.org/standards/smbios for details.
776
Simon Glass052a03e2020-11-05 06:32:11 -0700777 See also SMBIOS_SYSINFO which allows SMBIOS values to be provided in
778 the devicetree.
779
Tero Kristocfbe15c2021-06-11 11:45:02 +0300780config LIB_RATIONAL
781 bool "enable continued fraction calculation routines"
782
783config SPL_LIB_RATIONAL
784 bool "enable continued fraction calculation routines for SPL"
785 depends on SPL
786
Alexander Graffb228082016-08-19 01:23:23 +0200787endmenu
788
AKASHI Takahirof7025262019-11-13 09:44:53 +0900789config ASN1_COMPILER
790 bool
791
AKASHI Takahiro3a888712019-11-13 09:44:55 +0900792config ASN1_DECODER
793 bool
794 help
795 Enable asn1 decoder library.
796
AKASHI Takahiro54923642019-11-13 09:44:57 +0900797config OID_REGISTRY
798 bool
799 help
800 Enable fast lookup object identifier registry.
801
Christian Gmeiner19859982020-11-03 15:34:51 +0100802config SMBIOS_PARSER
803 bool "SMBIOS parser"
804 help
805 A simple parser for SMBIOS data.
806
Simon Glass9539e692015-07-31 09:31:36 -0600807source lib/efi/Kconfig
Alexander Graf67ee7052016-03-04 01:10:07 +0100808source lib/efi_loader/Kconfig
Bryan O'Donoghue4b0de7c2018-03-13 16:50:27 +0000809source lib/optee/Kconfig
Simon Glass9539e692015-07-31 09:31:36 -0600810
Thierry Reding52c7f1f32019-03-21 19:10:04 +0100811config TEST_FDTDEC
812 bool "enable fdtdec test"
813 depends on OF_LIBFDT
814
AKASHI Takahiro51ba5222019-11-13 09:44:49 +0900815config LIB_DATE
816 bool
817
Keerthy76f361a2020-02-12 13:55:03 +0530818config LIB_ELF
819 bool
820 help
Patrick Delaunayfb67df82021-01-04 15:33:28 +0100821 Support basic elf loading/validating functions.
822 This supports for 32 bit and 64 bit versions.
Keerthy76f361a2020-02-12 13:55:03 +0530823
Patrick Delaunayd62063d2021-03-10 10:16:25 +0100824config LMB
825 bool "Enable the logical memory blocks library (lmb)"
826 default y if ARC || ARM || M68K || MICROBLAZE || MIPS || NDS32 || \
827 NIOS2 || PPC || RISCV || SANDBOX || SH || X86 || XTENSA
828 help
829 Support the library logical memory blocks.
830
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100831config LMB_USE_MAX_REGIONS
Heinrich Schuchardtc4bc9182021-11-14 09:38:53 +0100832 bool "Use a common number of memory and reserved regions in lmb lib"
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100833 depends on LMB
834 default y
835 help
836 Define the number of supported memory regions in the library logical
837 memory blocks.
838 This feature allow to reduce the lmb library size by using compiler
839 optimization when LMB_MEMORY_REGIONS == LMB_RESERVED_REGIONS.
Patrick Delaunaycd831af2021-03-10 10:16:28 +0100840
841config LMB_MAX_REGIONS
842 int "Number of memory and reserved regions in lmb lib"
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100843 depends on LMB && LMB_USE_MAX_REGIONS
Patrick Delaunaycd831af2021-03-10 10:16:28 +0100844 default 8
845 help
846 Define the number of supported regions, memory and reserved, in the
847 library logical memory blocks.
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100848
849config LMB_MEMORY_REGIONS
850 int "Number of memory regions in lmb lib"
851 depends on LMB && !LMB_USE_MAX_REGIONS
852 default 8
853 help
854 Define the number of supported memory regions in the library logical
855 memory blocks.
856 The minimal value is CONFIG_NR_DRAM_BANKS.
857
858config LMB_RESERVED_REGIONS
859 int "Number of reserved regions in lmb lib"
860 depends on LMB && !LMB_USE_MAX_REGIONS
861 default 8
862 help
863 Define the number of supported reserved regions in the library logical
864 memory blocks.
865
Aswath Govindraju3dd81252020-12-03 10:55:45 +0530866config PHANDLE_CHECK_SEQ
867 bool "Enable phandle check while getting sequence number"
Aswath Govindraju3dd81252020-12-03 10:55:45 +0530868 help
869 When there are multiple device tree nodes with same name,
870 enable this config option to distinguish them using
871 phandles in fdtdec_get_alias_seq() function.
Eugen Hristevdb6bbcb2022-01-04 18:20:19 +0200872
873endmenu