blob: b0e5d60b3d0b8b8773fd62cbff0d98c632fb4b02 [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
Loic Poulain12797e62021-11-25 18:16:14 +0100320config CIRCBUF
321 bool "Enable circular buffer support"
322
Simon Glass99dbe4b2015-06-23 15:38:23 -0600323source lib/dhry/Kconfig
324
Simon Glass528fdd12017-04-26 22:27:49 -0600325menu "Security support"
326
327config AES
328 bool "Support the AES algorithm"
329 help
330 This provides a means to encrypt and decrypt data using the AES
331 (Advanced Encryption Standard). This algorithm uses a symetric key
332 and is widely used as a streaming cipher. Different key lengths are
333 supported by the algorithm but only a 128-bit key is supported at
334 present.
335
Alexandru Gagniuc48cb9b82021-07-29 11:47:16 -0500336source lib/ecdsa/Kconfig
Ruchika Gupta4acd8c42015-01-23 16:01:56 +0530337source lib/rsa/Kconfig
AKASHI Takahiro591535c2019-11-13 09:45:00 +0900338source lib/crypto/Kconfig
Steffen Jaeckel229bd512021-07-08 15:57:33 +0200339source lib/crypt/Kconfig
Ruchika Gupta2c3822e2015-01-23 16:01:51 +0530340
Simon Glass350497c2015-08-22 18:31:19 -0600341config TPM
342 bool "Trusted Platform Module (TPM) Support"
Simon Glasscf294b02015-10-03 06:39:36 -0600343 depends on DM
Simon Glass350497c2015-08-22 18:31:19 -0600344 help
345 This enables support for TPMs which can be used to provide security
346 features for your board. The TPM can be connected via LPC or I2C
347 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
348 command to interactive the TPM. Driver model support is provided
349 for the low-level TPM interface, but only one TPM is supported at
350 a time by the TPM library.
351
Simon Glass93a45b12018-10-01 12:22:19 -0600352config SPL_TPM
353 bool "Trusted Platform Module (TPM) Support in SPL"
354 depends on SPL_DM
355 help
356 This enables support for TPMs which can be used to provide security
357 features for your board. The TPM can be connected via LPC or I2C
358 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
359 command to interactive the TPM. Driver model support is provided
360 for the low-level TPM interface, but only one TPM is supported at
361 a time by the TPM library.
362
363config TPL_TPM
364 bool "Trusted Platform Module (TPM) Support in TPL"
365 depends on TPL_DM
366 help
367 This enables support for TPMs which can be used to provide security
368 features for your board. The TPM can be connected via LPC or I2C
369 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
370 command to interactive the TPM. Driver model support is provided
371 for the low-level TPM interface, but only one TPM is supported at
372 a time by the TPM library.
373
Simon Glass528fdd12017-04-26 22:27:49 -0600374endmenu
375
Igor Opaniuk525d1d82018-06-03 21:56:37 +0300376menu "Android Verified Boot"
377
378config LIBAVB
379 bool "Android Verified Boot 2.0 support"
380 depends on ANDROID_BOOT_IMAGE
Igor Opaniuk525d1d82018-06-03 21:56:37 +0300381 help
382 This enables support of Android Verified Boot 2.0 which can be used
383 to assure the end user of the integrity of the software running on a
384 device. Introduces such features as boot chain of trust, rollback
385 protection etc.
386
387endmenu
388
gaurav ranaef201592015-02-20 12:51:46 +0530389menu "Hashing Support"
390
Qu Wenruob98e8a22021-12-27 14:12:07 +0800391config BLAKE2
392 bool "Enable BLAKE2 support"
393 help
394 This option enables support of hashing using BLAKE2B algorithm.
395 The hash is calculated in software.
396 The BLAKE2 algorithm produces a hash value (digest) between 1 and
397 64 bytes.
398
gaurav ranaef201592015-02-20 12:51:46 +0530399config SHA1
400 bool "Enable SHA1 support"
401 help
402 This option enables support of hashing using SHA1 algorithm.
403 The hash is calculated in software.
404 The SHA1 algorithm produces a 160-bit (20-byte) hash value
405 (digest).
406
407config SHA256
408 bool "Enable SHA256 support"
409 help
410 This option enables support of hashing using SHA256 algorithm.
411 The hash is calculated in software.
412 The SHA256 algorithm produces a 256-bit (32-byte) hash value
413 (digest).
414
Reuben Dowle1908fd92020-04-16 17:36:52 +1200415config SHA512
416 bool "Enable SHA512 support"
Reuben Dowle1908fd92020-04-16 17:36:52 +1200417 help
418 This option enables support of hashing using SHA512 algorithm.
419 The hash is calculated in software.
420 The SHA512 algorithm produces a 512-bit (64-byte) hash value
421 (digest).
422
423config SHA384
424 bool "Enable SHA384 support"
Alexandru Gagniuc5df5d692021-09-02 19:54:18 -0500425 select SHA512
Reuben Dowle1908fd92020-04-16 17:36:52 +1200426 help
427 This option enables support of hashing using SHA384 algorithm.
Alexandru Gagniuc5df5d692021-09-02 19:54:18 -0500428 The hash is calculated in software. This is also selects SHA512,
429 because these implementations share the bulk of the code..
Reuben Dowle1908fd92020-04-16 17:36:52 +1200430 The SHA384 algorithm produces a 384-bit (48-byte) hash value
431 (digest).
432
gaurav ranaef201592015-02-20 12:51:46 +0530433config SHA_HW_ACCEL
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200434 bool "Enable hardware acceleration for SHA hash functions"
gaurav ranaef201592015-02-20 12:51:46 +0530435 help
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200436 This option enables hardware acceleration for the SHA1 and SHA256
437 hashing algorithms. This affects the 'hash' command and also the
438 hash_lookup_algo() function.
439
Simon Glassf7b37c22021-09-25 19:43:17 -0600440if SPL
441
442config SPL_SHA1
443 bool "Enable SHA1 support in SPL"
444 default y if SHA1
445 help
446 This option enables support of hashing using SHA1 algorithm.
447 The hash is calculated in software.
448 The SHA1 algorithm produces a 160-bit (20-byte) hash value
449 (digest).
450
451config SPL_SHA256
452 bool "Enable SHA256 support in SPL"
453 default y if SHA256
454 help
455 This option enables support of hashing using SHA256 algorithm.
456 The hash is calculated in software.
457 The SHA256 algorithm produces a 256-bit (32-byte) hash value
458 (digest).
459
460config SPL_SHA512
461 bool "Enable SHA512 support in SPL"
462 default y if SHA512
463 help
464 This option enables support of hashing using SHA512 algorithm.
465 The hash is calculated in software.
466 The SHA512 algorithm produces a 512-bit (64-byte) hash value
467 (digest).
468
469config SPL_SHA384
470 bool "Enable SHA384 support in SPL"
471 default y if SHA384
472 select SPL_SHA512
473 help
474 This option enables support of hashing using SHA384 algorithm.
475 The hash is calculated in software. This is also selects SHA512,
476 because these implementations share the bulk of the code..
477 The SHA384 algorithm produces a 384-bit (48-byte) hash value
478 (digest).
479
Simon Glass383dd572021-09-25 19:43:18 -0600480config SPL_SHA_HW_ACCEL
481 bool "Enable hardware acceleration for SHA hash functions"
482 default y if SHA_HW_ACCEL
483 help
484 This option enables hardware acceleration for the SHA1 and SHA256
485 hashing algorithms. This affects the 'hash' command and also the
486 hash_lookup_algo() function.
487
488config SPL_SHA_PROG_HW_ACCEL
489 bool "Enable Progressive hashing support using hardware in SPL"
490 depends on SHA_PROG_HW_ACCEL
491 default y
492 help
493 This option enables hardware-acceleration for SHA progressive
494 hashing.
495 Data can be streamed in a block at a time and the hashing is
496 performed in hardware.
497
Simon Glassf7b37c22021-09-25 19:43:17 -0600498endif
499
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200500if SHA_HW_ACCEL
501
502config SHA512_HW_ACCEL
503 bool "Enable hardware acceleration for SHA512"
Alexandru Gagniuc5df5d692021-09-02 19:54:18 -0500504 depends on SHA512
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200505 help
506 This option enables hardware acceleration for the SHA384 and SHA512
507 hashing algorithms. This affects the 'hash' command and also the
508 hash_lookup_algo() function.
gaurav ranaef201592015-02-20 12:51:46 +0530509
510config SHA_PROG_HW_ACCEL
511 bool "Enable Progressive hashing support using hardware"
gaurav ranaef201592015-02-20 12:51:46 +0530512 help
Joel Stanley92efc1f2021-02-17 13:50:42 +1030513 This option enables hardware-acceleration for SHA progressive
514 hashing.
515 Data can be streamed in a block at a time and the hashing is
516 performed in hardware.
Andre Przywaraf0fa1132017-03-15 01:19:05 +0000517
Heinrich Schuchardtd42f81f2021-05-14 07:08:27 +0200518endif
519
Andre Przywaraf0fa1132017-03-15 01:19:05 +0000520config MD5
Simon Glassd33d0db2020-05-06 08:03:56 -0600521 bool "Support MD5 algorithm"
522 help
523 This option enables MD5 support. MD5 is an algorithm designed
524 in 1991 that produces a 16-byte digest (or checksum) from its input
525 data. It has a number of vulnerabilities which preclude its use in
526 security applications, but it can be useful for providing a quick
527 checksum of a block of data.
528
529config SPL_MD5
530 bool "Support MD5 algorithm in SPL"
531 help
532 This option enables MD5 support in SPL. MD5 is an algorithm designed
533 in 1991 that produces a 16-byte digest (or checksum) from its input
534 data. It has a number of vulnerabilities which preclude its use in
535 security applications, but it can be useful for providing a quick
536 checksum of a block of data.
Andre Przywaraf0fa1132017-03-15 01:19:05 +0000537
Simon Glass577226c2021-09-25 19:43:24 -0600538config CRC32
539 def_bool y
540 help
541 Enables CRC32 support in U-Boot. This is normally required.
542
Marek Behúncdccc032017-09-03 17:00:23 +0200543config CRC32C
544 bool
545
Marek Behúnb139a7f2019-04-29 22:40:43 +0200546config XXHASH
547 bool
548
gaurav ranaef201592015-02-20 12:51:46 +0530549endmenu
550
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700551menu "Compression Support"
552
553config LZ4
554 bool "Enable LZ4 decompression support"
555 help
556 If this option is set, support for LZ4 compressed images
557 is included. The LZ4 algorithm can run in-place as long as the
558 compressed image is loaded to the end of the output buffer, and
559 trades lower compression ratios for much faster decompression.
Patrick Delaunaycd831af2021-03-10 10:16:28 +0100560
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700561 NOTE: This implements the release version of the LZ4 frame
562 format as generated by default by the 'lz4' command line tool.
563 This is not the same as the outdated, less efficient legacy
564 frame format currently (2015) implemented in the Linux kernel
565 (generated by 'lz4 -l'). The two formats are incompatible.
566
Simon Glass264aa5f2017-05-17 03:25:42 -0600567config LZMA
568 bool "Enable LZMA decompression support"
569 help
570 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
571 a dictionary compression algorithm that provides a high compression
572 ratio and fairly fast decompression speed. See also
573 CONFIG_CMD_LZMADEC which provides a decode command.
574
Boris Brezillonaa57d0f2017-02-27 18:22:06 +0100575config LZO
Tom Rinic20bb732017-07-22 18:36:16 -0400576 bool "Enable LZO decompression support"
577 help
Oleksandr Suvorov30a4c312021-09-01 16:05:08 +0300578 This enables support for the LZO compression algorithm.
York Suna6945fe2017-08-15 11:14:43 -0700579
Marek Vasutaeaa29d2019-03-08 16:06:55 +0100580config GZIP
Heiko Schocherb93cc602019-04-29 08:59:38 +0200581 bool "Enable gzip decompression support"
Marek Vasutaeaa29d2019-03-08 16:06:55 +0100582 select ZLIB
583 default y
584 help
585 This enables support for GZIP compression algorithm.
586
Joao Marcos Costaae8abb12020-07-30 15:33:49 +0200587config ZLIB_UNCOMPRESS
588 bool "Enables zlib's uncompress() functionality"
589 help
590 This enables an extra zlib functionality: the uncompress() function,
591 which decompresses data from a buffer into another, knowing their
592 sizes. Unlike gunzip(), there is no header parsing.
593
Michael Walle3a6e3512020-05-22 14:07:36 +0200594config GZIP_COMPRESSED
595 bool
596 select ZLIB
597
Atish Patra1fa79622020-03-05 16:24:21 -0800598config BZIP2
599 bool "Enable bzip2 decompression support"
600 help
601 This enables support for BZIP2 compression algorithm.
602
Marek Vasutaeaa29d2019-03-08 16:06:55 +0100603config ZLIB
604 bool
605 default y
606 help
607 This enables ZLIB compression lib.
608
Marek Behúne87e2002019-04-29 22:40:44 +0200609config ZSTD
610 bool "Enable Zstandard decompression support"
611 select XXHASH
612 help
613 This enables Zstandard decompression library.
614
Simon Glasse107bcd2018-11-06 15:21:30 -0700615config SPL_LZ4
616 bool "Enable LZ4 decompression support in SPL"
617 help
Marcin Juszkiewicza360c2c2020-05-26 19:07:15 +0200618 This enables support for the LZ4 decompression algorithm in SPL. LZ4
Simon Glasse107bcd2018-11-06 15:21:30 -0700619 is a lossless data compression algorithm that is focused on
620 fast compression and decompression speed. It belongs to the LZ77
621 family of byte-oriented compression schemes.
622
developer6a4e1d32020-04-21 09:28:38 +0200623config SPL_LZMA
624 bool "Enable LZMA decompression support for SPL build"
625 help
Marcin Juszkiewicza360c2c2020-05-26 19:07:15 +0200626 This enables support for LZMA compression algorithm for SPL boot.
developer6a4e1d32020-04-21 09:28:38 +0200627
Jean-Jacques Hiblotdbde2882017-09-15 12:57:30 +0200628config SPL_LZO
629 bool "Enable LZO decompression support in SPL"
630 help
631 This enables support for LZO compression algorithm in the SPL.
632
York Suna6945fe2017-08-15 11:14:43 -0700633config SPL_GZIP
634 bool "Enable gzip decompression support for SPL build"
635 select SPL_ZLIB
636 help
Oleksandr Suvorov30a4c312021-09-01 16:05:08 +0300637 This enables support for the GZIP compression algorithm for SPL boot.
York Suna6945fe2017-08-15 11:14:43 -0700638
639config SPL_ZLIB
640 bool
641 help
642 This enables compression lib for SPL boot.
643
Marek Behúne87e2002019-04-29 22:40:44 +0200644config SPL_ZSTD
645 bool "Enable Zstandard decompression support in SPL"
646 select XXHASH
647 help
648 This enables Zstandard decompression library in the SPL.
649
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700650endmenu
651
Przemyslaw Marczak37550132015-04-20 20:07:40 +0200652config ERRNO_STR
653 bool "Enable function for getting errno-related string message"
654 help
655 The function errno_str(int errno), returns a pointer to the errno
656 corresponding text message:
657 - if errno is null or positive number - a pointer to "Success" message
658 - if errno is negative - a pointer to errno related message
659
Alexey Brodkin2d2fa492018-06-05 17:17:57 +0300660config HEXDUMP
661 bool "Enable hexdump"
662 help
663 This enables functions for printing dumps of binary data.
664
Simon Glassa37fd4d2020-09-12 11:13:35 -0600665config SPL_HEXDUMP
666 bool "Enable hexdump in SPL"
Heinrich Schuchardt11df0722021-07-24 17:35:46 +0200667 depends on SPL && HEXDUMP
Simon Glassa37fd4d2020-09-12 11:13:35 -0600668 help
669 This enables functions for printing dumps of binary data in
670 SPL.
671
Sean Anderson3b4a6f52020-10-27 19:55:36 -0400672config GETOPT
673 bool "Enable getopt"
674 help
675 This enables functions for parsing command-line options.
676
Simon Glassa66c5412016-02-22 22:55:42 -0700677config OF_LIBFDT
678 bool "Enable the FDT library"
679 default y if OF_CONTROL
680 help
681 This enables the FDT library (libfdt). It provides functions for
682 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinda707d42017-08-18 17:58:51 +0200683 removing nodes and properties, scanning through the tree and finding
Simon Glassa66c5412016-02-22 22:55:42 -0700684 particular compatible nodes. The library operates on a flattened
685 version of the device tree.
686
Simon Glassc48044d2019-10-27 09:47:40 -0600687config OF_LIBFDT_ASSUME_MASK
688 hex "Mask of conditions to assume for libfdt"
689 depends on OF_LIBFDT || FIT
690 default 0
691 help
692 Use this to change the assumptions made by libfdt about the
693 device tree it is working with. A value of 0 means that no assumptions
694 are made, and libfdt is able to deal with malicious data. A value of
695 0xff means all assumptions are made and any invalid data may cause
696 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
697
Maxime Ripard9e901ce2016-07-05 10:26:44 +0200698config OF_LIBFDT_OVERLAY
699 bool "Enable the FDT library overlay support"
Tom Rinic1e49ba2018-05-08 08:52:17 -0400700 depends on OF_LIBFDT
Praneeth Bajjuri7b71a012018-04-25 16:03:23 -0500701 default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
Maxime Ripard9e901ce2016-07-05 10:26:44 +0200702 help
703 This enables the FDT library (libfdt) overlay support.
704
Simon Glass8b426922016-02-22 22:55:45 -0700705config SPL_OF_LIBFDT
706 bool "Enable the FDT library for SPL"
707 default y if SPL_OF_CONTROL
708 help
709 This enables the FDT library (libfdt). It provides functions for
710 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinda707d42017-08-18 17:58:51 +0200711 removing nodes and properties, scanning through the tree and finding
Simon Glass8b426922016-02-22 22:55:45 -0700712 particular compatible nodes. The library operates on a flattened
713 version of the device tree.
714
Simon Glassc48044d2019-10-27 09:47:40 -0600715config SPL_OF_LIBFDT_ASSUME_MASK
716 hex "Mask of conditions to assume for libfdt"
717 depends on SPL_OF_LIBFDT || FIT
718 default 0xff
719 help
720 Use this to change the assumptions made by libfdt in SPL about the
721 device tree it is working with. A value of 0 means that no assumptions
722 are made, and libfdt is able to deal with malicious data. A value of
723 0xff means all assumptions are made and any invalid data may cause
724 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
725
Simon Glassca8ec4b2018-10-01 12:22:21 -0600726config TPL_OF_LIBFDT
727 bool "Enable the FDT library for TPL"
728 default y if TPL_OF_CONTROL
729 help
730 This enables the FDT library (libfdt). It provides functions for
731 accessing binary device tree images in memory, such as adding and
732 removing nodes and properties, scanning through the tree and finding
733 particular compatible nodes. The library operates on a flattened
734 version of the device tree.
735
Simon Glassc48044d2019-10-27 09:47:40 -0600736config TPL_OF_LIBFDT_ASSUME_MASK
737 hex "Mask of conditions to assume for libfdt"
738 depends on TPL_OF_LIBFDT || FIT
739 default 0xff
740 help
741 Use this to change the assumptions made by libfdt in TPL about the
742 device tree it is working with. A value of 0 means that no assumptions
743 are made, and libfdt is able to deal with malicious data. A value of
744 0xff means all assumptions are made and any invalid data may cause
745 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
746
Heiko Schocherc9ab9102016-10-06 07:31:45 +0200747config FDT_FIXUP_PARTITIONS
748 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
749 depends on OF_LIBFDT
Masahiro Yamada734b7552018-07-20 11:04:09 +0900750 depends on CMD_MTDPARTS
Heiko Schocherc9ab9102016-10-06 07:31:45 +0200751 help
752 Allow overwriting defined partitions in the device tree blob
753 using partition info defined in the 'mtdparts' environment
754 variable.
755
Alexander Graffb228082016-08-19 01:23:23 +0200756menu "System tables"
Alexander Graf66f96e12016-08-19 01:23:29 +0200757 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
Alexander Graffb228082016-08-19 01:23:23 +0200758
Simon Glass5d093f32020-11-04 09:57:25 -0700759config BLOBLIST_TABLES
760 bool "Put tables in a bloblist"
Simon Glass171c6462021-03-15 18:11:22 +1300761 depends on X86 && BLOBLIST
Simon Glass5d093f32020-11-04 09:57:25 -0700762 help
763 Normally tables are placed at address 0xf0000 and can be up to 64KB
764 long. With this option, tables are instead placed in the bloblist
765 with a pointer from 0xf0000. The size can then be larger and the
766 tables can be placed high in memory.
767
Alexander Graffb228082016-08-19 01:23:23 +0200768config GENERATE_SMBIOS_TABLE
769 bool "Generate an SMBIOS (System Management BIOS) table"
770 default y
Alexander Graf66f96e12016-08-19 01:23:29 +0200771 depends on X86 || EFI_LOADER
Alexander Graffb228082016-08-19 01:23:23 +0200772 help
773 The System Management BIOS (SMBIOS) specification addresses how
774 motherboard and system vendors present management information about
775 their products in a standard format by extending the BIOS interface
776 on Intel architecture systems.
777
778 Check http://www.dmtf.org/standards/smbios for details.
779
Simon Glass052a03e2020-11-05 06:32:11 -0700780 See also SMBIOS_SYSINFO which allows SMBIOS values to be provided in
781 the devicetree.
782
Tero Kristocfbe15c2021-06-11 11:45:02 +0300783config LIB_RATIONAL
784 bool "enable continued fraction calculation routines"
785
786config SPL_LIB_RATIONAL
787 bool "enable continued fraction calculation routines for SPL"
788 depends on SPL
789
Alexander Graffb228082016-08-19 01:23:23 +0200790endmenu
791
AKASHI Takahirof7025262019-11-13 09:44:53 +0900792config ASN1_COMPILER
793 bool
Philippe Reynes2aba9442022-03-28 22:56:54 +0200794 help
795 ASN.1 (Abstract Syntax Notation One) is a standard interface
796 description language for defining data structures that can be
797 serialized and deserialized in a cross-platform way. It is
798 broadly used in telecommunications and computer networking,
799 and especially in cryptography (https://en.wikipedia.org/wiki/ASN.1).
800 This option enables the support of the asn1 compiler.
AKASHI Takahirof7025262019-11-13 09:44:53 +0900801
AKASHI Takahiro3a888712019-11-13 09:44:55 +0900802config ASN1_DECODER
803 bool
804 help
Philippe Reynes2aba9442022-03-28 22:56:54 +0200805 ASN.1 (Abstract Syntax Notation One) is a standard interface
806 description language for defining data structures that can be
807 serialized and deserialized in a cross-platform way. It is
808 broadly used in telecommunications and computer networking,
809 and especially in cryptography (https://en.wikipedia.org/wiki/ASN.1).
810 This option enables the support of the asn1 decoder.
AKASHI Takahiro3a888712019-11-13 09:44:55 +0900811
AKASHI Takahiro54923642019-11-13 09:44:57 +0900812config OID_REGISTRY
813 bool
814 help
815 Enable fast lookup object identifier registry.
816
Christian Gmeiner19859982020-11-03 15:34:51 +0100817config SMBIOS_PARSER
818 bool "SMBIOS parser"
819 help
820 A simple parser for SMBIOS data.
821
Simon Glass9539e692015-07-31 09:31:36 -0600822source lib/efi/Kconfig
Alexander Graf67ee7052016-03-04 01:10:07 +0100823source lib/efi_loader/Kconfig
Bryan O'Donoghue4b0de7c2018-03-13 16:50:27 +0000824source lib/optee/Kconfig
Simon Glass9539e692015-07-31 09:31:36 -0600825
Thierry Reding52c7f1f32019-03-21 19:10:04 +0100826config TEST_FDTDEC
827 bool "enable fdtdec test"
828 depends on OF_LIBFDT
829
AKASHI Takahiro51ba5222019-11-13 09:44:49 +0900830config LIB_DATE
831 bool
832
Keerthy76f361a2020-02-12 13:55:03 +0530833config LIB_ELF
834 bool
835 help
Patrick Delaunayfb67df82021-01-04 15:33:28 +0100836 Support basic elf loading/validating functions.
837 This supports for 32 bit and 64 bit versions.
Keerthy76f361a2020-02-12 13:55:03 +0530838
Patrick Delaunayd62063d2021-03-10 10:16:25 +0100839config LMB
840 bool "Enable the logical memory blocks library (lmb)"
841 default y if ARC || ARM || M68K || MICROBLAZE || MIPS || NDS32 || \
842 NIOS2 || PPC || RISCV || SANDBOX || SH || X86 || XTENSA
843 help
844 Support the library logical memory blocks.
845
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100846config LMB_USE_MAX_REGIONS
Heinrich Schuchardtc4bc9182021-11-14 09:38:53 +0100847 bool "Use a common number of memory and reserved regions in lmb lib"
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100848 depends on LMB
849 default y
850 help
851 Define the number of supported memory regions in the library logical
852 memory blocks.
853 This feature allow to reduce the lmb library size by using compiler
854 optimization when LMB_MEMORY_REGIONS == LMB_RESERVED_REGIONS.
Patrick Delaunaycd831af2021-03-10 10:16:28 +0100855
856config LMB_MAX_REGIONS
857 int "Number of memory and reserved regions in lmb lib"
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100858 depends on LMB && LMB_USE_MAX_REGIONS
Patrick Delaunaycd831af2021-03-10 10:16:28 +0100859 default 8
860 help
861 Define the number of supported regions, memory and reserved, in the
862 library logical memory blocks.
Patrick Delaunay71cc9c52021-03-10 10:16:31 +0100863
864config LMB_MEMORY_REGIONS
865 int "Number of memory regions in lmb lib"
866 depends on LMB && !LMB_USE_MAX_REGIONS
867 default 8
868 help
869 Define the number of supported memory regions in the library logical
870 memory blocks.
871 The minimal value is CONFIG_NR_DRAM_BANKS.
872
873config LMB_RESERVED_REGIONS
874 int "Number of reserved regions in lmb lib"
875 depends on LMB && !LMB_USE_MAX_REGIONS
876 default 8
877 help
878 Define the number of supported reserved regions in the library logical
879 memory blocks.
880
Aswath Govindraju3dd81252020-12-03 10:55:45 +0530881config PHANDLE_CHECK_SEQ
882 bool "Enable phandle check while getting sequence number"
Aswath Govindraju3dd81252020-12-03 10:55:45 +0530883 help
884 When there are multiple device tree nodes with same name,
885 enable this config option to distinguish them using
886 phandles in fdtdec_get_alias_seq() function.
Eugen Hristevdb6bbcb2022-01-04 18:20:19 +0200887
888endmenu