blob: 1883ac734d62e192f35dabc0b2a93f0169b01c01 [file] [log] [blame]
Masahiro Yamadaed363232014-09-16 16:32:58 +09001menu "Library routines"
2
Marek Szyprowski69be8fd2020-06-03 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 Menge0103152021-02-25 17:22:36 +08009 This library only works in the post-relocation phase.
10
Marek Szyprowski69be8fd2020-06-03 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 Glass6405ab72021-11-24 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 Ford6ef2f902017-08-11 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 Glass3c10dc92019-12-06 21:41:34 -070035config BINMAN_FDT
36 bool "Allow access to binman information in the device tree"
Bin Meng56e72572021-02-03 21:20:02 +080037 depends on BINMAN && DM && OF_CONTROL
Bin Meng1621d3c2021-05-10 20:23:36 +080038 default y if OF_SEPARATE || OF_EMBED
Simon Glass3c10dc92019-12-06 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 Yamadab0928da2014-09-16 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 Glass1a46cb62021-07-02 12:36:17 -060053config CHARSET
54 bool
Simon Glass726cd982021-12-29 11:57:35 -070055 default y if UT_UNICODE || EFI_LOADER || UFS || EFI_APP
Simon Glass1a46cb62021-07-02 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 Abbas36c18772018-02-06 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 Meng2895c4b2018-10-15 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 Yamada45ccec82014-10-24 01:30:43 +090073config HAVE_PRIVATE_LIBGCC
74 bool
75
Adam Forda451bc22018-02-06 12:14:28 -060076config LIB_UUID
77 bool
78
Alex Kiernan14ad44a2018-04-19 04:32:54 +000079config PRINTF
80 bool
81 default y
82
83config SPL_PRINTF
84 bool
85 select SPL_SPRINTF
Simon Glass27084c02019-09-25 08:56:27 -060086 select SPL_STRTO if !SPL_USE_TINY_PRINTF
Alex Kiernan14ad44a2018-04-19 04:32:54 +000087
88config TPL_PRINTF
89 bool
90 select TPL_SPRINTF
Simon Glass27084c02019-09-25 08:56:27 -060091 select TPL_STRTO if !TPL_USE_TINY_PRINTF
Alex Kiernan14ad44a2018-04-19 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 Anisove87dfb02020-08-06 12:42:52 +0300103config SSCANF
104 bool
Andrii Anisove87dfb02020-08-06 12:42:52 +0300105
Alex Kiernan14ad44a2018-04-19 04:32:54 +0000106config STRTO
107 bool
108 default y
109
110config SPL_STRTO
111 bool
112
113config TPL_STRTO
114 bool
115
Alex Kiernanc232d142018-05-29 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 Yamada45ccec82014-10-24 01:30:43 +0900127config USE_PRIVATE_LIBGCC
128 bool "Use private libgcc"
129 depends on HAVE_PRIVATE_LIBGCC
Marek Vasut91b86e22016-05-26 18:01:47 +0200130 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
Masahiro Yamada45ccec82014-10-24 01:30:43 +0900131 help
132 This option allows you to use the built-in libgcc implementation
Masahiro Yamada67976302016-03-30 20:17:42 +0900133 of U-Boot instead of the one provided by the compiler.
Masahiro Yamada45ccec82014-10-24 01:30:43 +0900134 If unsure, say N.
135
Masahiro Yamada8c688bc2014-10-24 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 Glass27084c02019-09-25 08:56:27 -0600144config SPL_USE_TINY_PRINTF
Thomas Hebb37ef1772019-11-10 08:23:53 -0800145 bool "Enable tiny printf() version in SPL"
Simon Glass27084c02019-09-25 08:56:27 -0600146 depends on SPL
Tom Rini2a51e162019-06-08 12:46:18 -0400147 default y
Stefan Roese7d9cde12015-11-23 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 Glass27084c02019-09-25 08:56:27 -0600156config TPL_USE_TINY_PRINTF
Thomas Hebb37ef1772019-11-10 08:23:53 -0800157 bool "Enable tiny printf() version in TPL"
Simon Glass27084c02019-09-25 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 Yamada7e3caa82017-12-04 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 Hershberger1a606502015-04-21 17:02:42 -0500178config REGEX
179 bool "Enable regular expression support"
Joe Hershbergerf7848d92015-06-22 17:57:36 -0500180 default y if NET
Joe Hershberger1a606502015-04-21 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 Forda5a37562018-02-06 10:18:18 -0600187choice
188 prompt "Pseudo-random library support type"
Heinrich Schuchardt16112352020-01-19 19:28:12 +0100189 depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID || \
Heinrich Schuchardt28cef9c2020-11-20 12:55:22 +0100190 RNG_SANDBOX || UT_LIB && AES || FAT_WRITE
Adam Forda5a37562018-02-06 10:18:18 -0600191 default LIB_RAND
Masahiro Yamada3850dbe2015-06-11 19:16:43 +0900192 help
Adam Forda5a37562018-02-06 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 Juszkiewicz43e442a2020-05-26 19:07:15 +0200201 bool "HW Engine for random library support"
Adam Forda5a37562018-02-06 10:18:18 -0600202
203endchoice
Michal Simek9ba9e852015-05-25 11:37:22 +0200204
Simon Glassab4458b2017-04-02 09:50:28 -0600205config SPL_TINY_MEMSET
206 bool "Use a very small memset() in SPL"
207 help
208 The faster memset() is the arch-specific one (if available) enabled
209 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
210 better performance by writing a word at a time. But in very
Chris Packham6e705112019-01-13 22:13:28 +1300211 size-constrained environments even this may be too big. Enable this
Simon Glassab4458b2017-04-02 09:50:28 -0600212 option to reduce code size slightly at the cost of some speed.
213
Philipp Tomsich96b90822017-08-03 22:52:04 +0200214config TPL_TINY_MEMSET
215 bool "Use a very small memset() in TPL"
216 help
217 The faster memset() is the arch-specific one (if available) enabled
218 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
219 better performance by writing a word at a time. But in very
Chris Packham6e705112019-01-13 22:13:28 +1300220 size-constrained environments even this may be too big. Enable this
Philipp Tomsich96b90822017-08-03 22:52:04 +0200221 option to reduce code size slightly at the cost of some speed.
222
Boris Brezillonaa049152017-02-27 18:22:05 +0100223config RBTREE
224 bool
225
Nandor Handa5337a2017-11-08 15:35:14 +0000226config BITREVERSE
227 bool "Bit reverse library from Linux"
228
Simon Glassa24a78d2019-04-08 13:20:51 -0600229config TRACE
230 bool "Support for tracing of function calls and timing"
231 imply CMD_TRACE
Pragnesh Patela80f8512021-01-17 18:11:24 +0530232 select TIMER_EARLY
Simon Glassa24a78d2019-04-08 13:20:51 -0600233 help
234 Enables function tracing within U-Boot. This allows recording of call
235 traces including timing information. The command can write data to
236 memory for exporting for analysis (e.g. using bootchart).
237 See doc/README.trace for full details.
238
Simon Glass1c6eb072019-04-08 13:20:52 -0600239config TRACE_BUFFER_SIZE
240 hex "Size of trace buffer in U-Boot"
241 depends on TRACE
242 default 0x01000000
243 help
244 Sets the size of the trace buffer in U-Boot. This is allocated from
245 memory during relocation. If this buffer is too small, the trace
246 history will be truncated, with later records omitted.
247
248 If early trace is enabled (i.e. before relocation), this buffer must
249 be large enough to include all the data from the early trace buffer as
250 well, since this is copied over to the main buffer during relocation.
251
252 A trace record is emitted for each function call and each record is
253 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
254 the size is too small then 'trace stats' will show a message saying
255 how many records were dropped due to buffer overflow.
256
Heinrich Schuchardtda0fb5f2019-06-02 13:30:09 +0200257config TRACE_CALL_DEPTH_LIMIT
258 int "Trace call depth limit"
259 depends on TRACE
260 default 15
261 help
262 Sets the maximum call depth up to which function calls are recorded.
263
Simon Glass1c6eb072019-04-08 13:20:52 -0600264config TRACE_EARLY
265 bool "Enable tracing before relocation"
266 depends on TRACE
267 help
268 Sometimes it is helpful to trace execution of U-Boot before
269 relocation. This is possible by using a arch-specific, fixed buffer
270 position in memory. Enable this option to start tracing as early as
271 possible after U-Boot starts.
272
273config TRACE_EARLY_SIZE
274 hex "Size of early trace buffer in U-Boot"
275 depends on TRACE_EARLY
276 default 0x00100000
277 help
278 Sets the size of the early trace buffer in bytes. This is used to hold
279 tracing information before relocation.
280
Heinrich Schuchardtda0fb5f2019-06-02 13:30:09 +0200281config TRACE_EARLY_CALL_DEPTH_LIMIT
282 int "Early trace call depth limit"
283 depends on TRACE_EARLY
284 default 200
285 help
286 Sets the maximum call depth up to which function calls are recorded
287 during early tracing.
288
Simon Glass1c6eb072019-04-08 13:20:52 -0600289config TRACE_EARLY_ADDR
290 hex "Address of early trace buffer in U-Boot"
291 depends on TRACE_EARLY
292 default 0x00100000
293 help
294 Sets the address of the early trace buffer in U-Boot. This memory
295 must be accessible before relocation.
296
297 A trace record is emitted for each function call and each record is
298 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
299 the size is too small then the message which says the amount of early
300 data being coped will the the same as the
301
Simon Glassd1389402015-06-23 15:38:23 -0600302source lib/dhry/Kconfig
303
Simon Glassb1a873d2017-04-26 22:27:49 -0600304menu "Security support"
305
306config AES
307 bool "Support the AES algorithm"
308 help
309 This provides a means to encrypt and decrypt data using the AES
310 (Advanced Encryption Standard). This algorithm uses a symetric key
311 and is widely used as a streaming cipher. Different key lengths are
312 supported by the algorithm but only a 128-bit key is supported at
313 present.
314
Alexandru Gagniuc928a8be2021-07-29 11:47:16 -0500315source lib/ecdsa/Kconfig
Ruchika Guptad9f23c72015-01-23 16:01:56 +0530316source lib/rsa/Kconfig
AKASHI Takahirob4adf622019-11-13 09:45:00 +0900317source lib/crypto/Kconfig
Steffen Jaeckel26dd9932021-07-08 15:57:33 +0200318source lib/crypt/Kconfig
Ruchika Guptac4beb222015-01-23 16:01:51 +0530319
Simon Glassa7d660b2015-08-22 18:31:19 -0600320config TPM
321 bool "Trusted Platform Module (TPM) Support"
Simon Glass2419cd12015-10-03 06:39:36 -0600322 depends on DM
Simon Glassa7d660b2015-08-22 18:31:19 -0600323 help
324 This enables support for TPMs which can be used to provide security
325 features for your board. The TPM can be connected via LPC or I2C
326 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
327 command to interactive the TPM. Driver model support is provided
328 for the low-level TPM interface, but only one TPM is supported at
329 a time by the TPM library.
330
Simon Glass63078962018-10-01 12:22:19 -0600331config SPL_TPM
332 bool "Trusted Platform Module (TPM) Support in SPL"
333 depends on SPL_DM
334 help
335 This enables support for TPMs which can be used to provide security
336 features for your board. The TPM can be connected via LPC or I2C
337 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
338 command to interactive the TPM. Driver model support is provided
339 for the low-level TPM interface, but only one TPM is supported at
340 a time by the TPM library.
341
342config TPL_TPM
343 bool "Trusted Platform Module (TPM) Support in TPL"
344 depends on TPL_DM
345 help
346 This enables support for TPMs which can be used to provide security
347 features for your board. The TPM can be connected via LPC or I2C
348 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
349 command to interactive the TPM. Driver model support is provided
350 for the low-level TPM interface, but only one TPM is supported at
351 a time by the TPM library.
352
Simon Glassb1a873d2017-04-26 22:27:49 -0600353endmenu
354
Igor Opaniuk33305842018-06-03 21:56:37 +0300355menu "Android Verified Boot"
356
357config LIBAVB
358 bool "Android Verified Boot 2.0 support"
359 depends on ANDROID_BOOT_IMAGE
Igor Opaniuk33305842018-06-03 21:56:37 +0300360 help
361 This enables support of Android Verified Boot 2.0 which can be used
362 to assure the end user of the integrity of the software running on a
363 device. Introduces such features as boot chain of trust, rollback
364 protection etc.
365
366endmenu
367
gaurav rana94e3c8c2015-02-20 12:51:46 +0530368menu "Hashing Support"
369
370config SHA1
371 bool "Enable SHA1 support"
372 help
373 This option enables support of hashing using SHA1 algorithm.
374 The hash is calculated in software.
375 The SHA1 algorithm produces a 160-bit (20-byte) hash value
376 (digest).
377
378config SHA256
379 bool "Enable SHA256 support"
380 help
381 This option enables support of hashing using SHA256 algorithm.
382 The hash is calculated in software.
383 The SHA256 algorithm produces a 256-bit (32-byte) hash value
384 (digest).
385
Reuben Dowled16b38f2020-04-16 17:36:52 +1200386config SHA512
387 bool "Enable SHA512 support"
Reuben Dowled16b38f2020-04-16 17:36:52 +1200388 help
389 This option enables support of hashing using SHA512 algorithm.
390 The hash is calculated in software.
391 The SHA512 algorithm produces a 512-bit (64-byte) hash value
392 (digest).
393
394config SHA384
395 bool "Enable SHA384 support"
Alexandru Gagniuce60e4492021-09-02 19:54:18 -0500396 select SHA512
Reuben Dowled16b38f2020-04-16 17:36:52 +1200397 help
398 This option enables support of hashing using SHA384 algorithm.
Alexandru Gagniuce60e4492021-09-02 19:54:18 -0500399 The hash is calculated in software. This is also selects SHA512,
400 because these implementations share the bulk of the code..
Reuben Dowled16b38f2020-04-16 17:36:52 +1200401 The SHA384 algorithm produces a 384-bit (48-byte) hash value
402 (digest).
403
gaurav rana94e3c8c2015-02-20 12:51:46 +0530404config SHA_HW_ACCEL
Heinrich Schuchardte2ae4832021-05-14 07:08:27 +0200405 bool "Enable hardware acceleration for SHA hash functions"
gaurav rana94e3c8c2015-02-20 12:51:46 +0530406 help
Heinrich Schuchardte2ae4832021-05-14 07:08:27 +0200407 This option enables hardware acceleration for the SHA1 and SHA256
408 hashing algorithms. This affects the 'hash' command and also the
409 hash_lookup_algo() function.
410
Simon Glass603d15a2021-09-25 19:43:17 -0600411if SPL
412
413config SPL_SHA1
414 bool "Enable SHA1 support in SPL"
415 default y if SHA1
416 help
417 This option enables support of hashing using SHA1 algorithm.
418 The hash is calculated in software.
419 The SHA1 algorithm produces a 160-bit (20-byte) hash value
420 (digest).
421
422config SPL_SHA256
423 bool "Enable SHA256 support in SPL"
424 default y if SHA256
425 help
426 This option enables support of hashing using SHA256 algorithm.
427 The hash is calculated in software.
428 The SHA256 algorithm produces a 256-bit (32-byte) hash value
429 (digest).
430
431config SPL_SHA512
432 bool "Enable SHA512 support in SPL"
433 default y if SHA512
434 help
435 This option enables support of hashing using SHA512 algorithm.
436 The hash is calculated in software.
437 The SHA512 algorithm produces a 512-bit (64-byte) hash value
438 (digest).
439
440config SPL_SHA384
441 bool "Enable SHA384 support in SPL"
442 default y if SHA384
443 select SPL_SHA512
444 help
445 This option enables support of hashing using SHA384 algorithm.
446 The hash is calculated in software. This is also selects SHA512,
447 because these implementations share the bulk of the code..
448 The SHA384 algorithm produces a 384-bit (48-byte) hash value
449 (digest).
450
Simon Glass2c212562021-09-25 19:43:18 -0600451config SPL_SHA_HW_ACCEL
452 bool "Enable hardware acceleration for SHA hash functions"
453 default y if SHA_HW_ACCEL
454 help
455 This option enables hardware acceleration for the SHA1 and SHA256
456 hashing algorithms. This affects the 'hash' command and also the
457 hash_lookup_algo() function.
458
459config SPL_SHA_PROG_HW_ACCEL
460 bool "Enable Progressive hashing support using hardware in SPL"
461 depends on SHA_PROG_HW_ACCEL
462 default y
463 help
464 This option enables hardware-acceleration for SHA progressive
465 hashing.
466 Data can be streamed in a block at a time and the hashing is
467 performed in hardware.
468
Simon Glass603d15a2021-09-25 19:43:17 -0600469endif
470
Heinrich Schuchardte2ae4832021-05-14 07:08:27 +0200471if SHA_HW_ACCEL
472
473config SHA512_HW_ACCEL
474 bool "Enable hardware acceleration for SHA512"
Alexandru Gagniuce60e4492021-09-02 19:54:18 -0500475 depends on SHA512
Heinrich Schuchardte2ae4832021-05-14 07:08:27 +0200476 help
477 This option enables hardware acceleration for the SHA384 and SHA512
478 hashing algorithms. This affects the 'hash' command and also the
479 hash_lookup_algo() function.
gaurav rana94e3c8c2015-02-20 12:51:46 +0530480
481config SHA_PROG_HW_ACCEL
482 bool "Enable Progressive hashing support using hardware"
gaurav rana94e3c8c2015-02-20 12:51:46 +0530483 help
Joel Stanleya479f102021-02-17 13:50:42 +1030484 This option enables hardware-acceleration for SHA progressive
485 hashing.
486 Data can be streamed in a block at a time and the hashing is
487 performed in hardware.
Andre Przywarabea79d72017-03-15 01:19:05 +0000488
Heinrich Schuchardte2ae4832021-05-14 07:08:27 +0200489endif
490
Andre Przywarabea79d72017-03-15 01:19:05 +0000491config MD5
Simon Glass8239be62020-05-06 08:03:56 -0600492 bool "Support MD5 algorithm"
493 help
494 This option enables MD5 support. MD5 is an algorithm designed
495 in 1991 that produces a 16-byte digest (or checksum) from its input
496 data. It has a number of vulnerabilities which preclude its use in
497 security applications, but it can be useful for providing a quick
498 checksum of a block of data.
499
500config SPL_MD5
501 bool "Support MD5 algorithm in SPL"
502 help
503 This option enables MD5 support in SPL. MD5 is an algorithm designed
504 in 1991 that produces a 16-byte digest (or checksum) from its input
505 data. It has a number of vulnerabilities which preclude its use in
506 security applications, but it can be useful for providing a quick
507 checksum of a block of data.
Andre Przywarabea79d72017-03-15 01:19:05 +0000508
Simon Glasse7d285b2021-09-25 19:43:24 -0600509config CRC32
510 def_bool y
511 help
512 Enables CRC32 support in U-Boot. This is normally required.
513
Marek Behún85d8bf52017-09-03 17:00:23 +0200514config CRC32C
515 bool
516
Marek Behún83a486b2019-04-29 22:40:43 +0200517config XXHASH
518 bool
519
gaurav rana94e3c8c2015-02-20 12:51:46 +0530520endmenu
521
Julius Werner027b7282015-10-06 20:03:53 -0700522menu "Compression Support"
523
524config LZ4
525 bool "Enable LZ4 decompression support"
526 help
527 If this option is set, support for LZ4 compressed images
528 is included. The LZ4 algorithm can run in-place as long as the
529 compressed image is loaded to the end of the output buffer, and
530 trades lower compression ratios for much faster decompression.
Patrick Delaunay4fa01502021-03-10 10:16:28 +0100531
Julius Werner027b7282015-10-06 20:03:53 -0700532 NOTE: This implements the release version of the LZ4 frame
533 format as generated by default by the 'lz4' command line tool.
534 This is not the same as the outdated, less efficient legacy
535 frame format currently (2015) implemented in the Linux kernel
536 (generated by 'lz4 -l'). The two formats are incompatible.
537
Simon Glassaed998a2017-05-17 03:25:42 -0600538config LZMA
539 bool "Enable LZMA decompression support"
540 help
541 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
542 a dictionary compression algorithm that provides a high compression
543 ratio and fairly fast decompression speed. See also
544 CONFIG_CMD_LZMADEC which provides a decode command.
545
Boris Brezillon173aafb2017-02-27 18:22:06 +0100546config LZO
Tom Rinid56b4b12017-07-22 18:36:16 -0400547 bool "Enable LZO decompression support"
548 help
Oleksandr Suvorov5145bc72021-09-01 16:05:08 +0300549 This enables support for the LZO compression algorithm.
York Sun7264f292017-08-15 11:14:43 -0700550
Marek Vasut95f4bbd2019-03-08 16:06:55 +0100551config GZIP
Heiko Schocher51323612019-04-29 08:59:38 +0200552 bool "Enable gzip decompression support"
Marek Vasut95f4bbd2019-03-08 16:06:55 +0100553 select ZLIB
554 default y
555 help
556 This enables support for GZIP compression algorithm.
557
Joao Marcos Costa81014f72020-07-30 15:33:49 +0200558config ZLIB_UNCOMPRESS
559 bool "Enables zlib's uncompress() functionality"
560 help
561 This enables an extra zlib functionality: the uncompress() function,
562 which decompresses data from a buffer into another, knowing their
563 sizes. Unlike gunzip(), there is no header parsing.
564
Michael Walleeff5a542020-05-22 14:07:36 +0200565config GZIP_COMPRESSED
566 bool
567 select ZLIB
568
Atish Patra2a2119e2020-03-05 16:24:21 -0800569config BZIP2
570 bool "Enable bzip2 decompression support"
571 help
572 This enables support for BZIP2 compression algorithm.
573
Marek Vasut95f4bbd2019-03-08 16:06:55 +0100574config ZLIB
575 bool
576 default y
577 help
578 This enables ZLIB compression lib.
579
Marek Behún8509f222019-04-29 22:40:44 +0200580config ZSTD
581 bool "Enable Zstandard decompression support"
582 select XXHASH
583 help
584 This enables Zstandard decompression library.
585
Simon Glass048c6e82018-11-06 15:21:30 -0700586config SPL_LZ4
587 bool "Enable LZ4 decompression support in SPL"
588 help
Marcin Juszkiewicz43e442a2020-05-26 19:07:15 +0200589 This enables support for the LZ4 decompression algorithm in SPL. LZ4
Simon Glass048c6e82018-11-06 15:21:30 -0700590 is a lossless data compression algorithm that is focused on
591 fast compression and decompression speed. It belongs to the LZ77
592 family of byte-oriented compression schemes.
593
Weijie Gao04cb3992020-04-21 09:28:38 +0200594config SPL_LZMA
595 bool "Enable LZMA decompression support for SPL build"
596 help
Marcin Juszkiewicz43e442a2020-05-26 19:07:15 +0200597 This enables support for LZMA compression algorithm for SPL boot.
Weijie Gao04cb3992020-04-21 09:28:38 +0200598
Jean-Jacques Hiblotf52bdf42017-09-15 12:57:30 +0200599config SPL_LZO
600 bool "Enable LZO decompression support in SPL"
601 help
602 This enables support for LZO compression algorithm in the SPL.
603
York Sun7264f292017-08-15 11:14:43 -0700604config SPL_GZIP
605 bool "Enable gzip decompression support for SPL build"
606 select SPL_ZLIB
607 help
Oleksandr Suvorov5145bc72021-09-01 16:05:08 +0300608 This enables support for the GZIP compression algorithm for SPL boot.
York Sun7264f292017-08-15 11:14:43 -0700609
610config SPL_ZLIB
611 bool
612 help
613 This enables compression lib for SPL boot.
614
Marek Behún8509f222019-04-29 22:40:44 +0200615config SPL_ZSTD
616 bool "Enable Zstandard decompression support in SPL"
617 select XXHASH
618 help
619 This enables Zstandard decompression library in the SPL.
620
Julius Werner027b7282015-10-06 20:03:53 -0700621endmenu
622
Przemyslaw Marczak6501ff62015-04-20 20:07:40 +0200623config ERRNO_STR
624 bool "Enable function for getting errno-related string message"
625 help
626 The function errno_str(int errno), returns a pointer to the errno
627 corresponding text message:
628 - if errno is null or positive number - a pointer to "Success" message
629 - if errno is negative - a pointer to errno related message
630
Alexey Brodkinf8c987f2018-06-05 17:17:57 +0300631config HEXDUMP
632 bool "Enable hexdump"
633 help
634 This enables functions for printing dumps of binary data.
635
Simon Glass26637e22020-09-12 11:13:35 -0600636config SPL_HEXDUMP
637 bool "Enable hexdump in SPL"
Heinrich Schuchardtfa3f1f12021-07-24 17:35:46 +0200638 depends on SPL && HEXDUMP
Simon Glass26637e22020-09-12 11:13:35 -0600639 help
640 This enables functions for printing dumps of binary data in
641 SPL.
642
Sean Anderson72eda502020-10-27 19:55:36 -0400643config GETOPT
644 bool "Enable getopt"
645 help
646 This enables functions for parsing command-line options.
647
Simon Glass69e173e2016-02-22 22:55:42 -0700648config OF_LIBFDT
649 bool "Enable the FDT library"
650 default y if OF_CONTROL
651 help
652 This enables the FDT library (libfdt). It provides functions for
653 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinf1a7ba12017-08-18 17:58:51 +0200654 removing nodes and properties, scanning through the tree and finding
Simon Glass69e173e2016-02-22 22:55:42 -0700655 particular compatible nodes. The library operates on a flattened
656 version of the device tree.
657
Simon Glass0d76afc2019-10-27 09:47:40 -0600658config OF_LIBFDT_ASSUME_MASK
659 hex "Mask of conditions to assume for libfdt"
660 depends on OF_LIBFDT || FIT
661 default 0
662 help
663 Use this to change the assumptions made by libfdt about the
664 device tree it is working with. A value of 0 means that no assumptions
665 are made, and libfdt is able to deal with malicious data. A value of
666 0xff means all assumptions are made and any invalid data may cause
667 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
668
Maxime Ripardddf67f72016-07-05 10:26:44 +0200669config OF_LIBFDT_OVERLAY
670 bool "Enable the FDT library overlay support"
Tom Rini64175722018-05-08 08:52:17 -0400671 depends on OF_LIBFDT
Praneeth Bajjuri58a46f82018-04-25 16:03:23 -0500672 default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
Maxime Ripardddf67f72016-07-05 10:26:44 +0200673 help
674 This enables the FDT library (libfdt) overlay support.
675
Simon Glassaa34fbc2016-02-22 22:55:45 -0700676config SPL_OF_LIBFDT
677 bool "Enable the FDT library for SPL"
678 default y if SPL_OF_CONTROL
679 help
680 This enables the FDT library (libfdt). It provides functions for
681 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinf1a7ba12017-08-18 17:58:51 +0200682 removing nodes and properties, scanning through the tree and finding
Simon Glassaa34fbc2016-02-22 22:55:45 -0700683 particular compatible nodes. The library operates on a flattened
684 version of the device tree.
685
Simon Glass0d76afc2019-10-27 09:47:40 -0600686config SPL_OF_LIBFDT_ASSUME_MASK
687 hex "Mask of conditions to assume for libfdt"
688 depends on SPL_OF_LIBFDT || FIT
689 default 0xff
690 help
691 Use this to change the assumptions made by libfdt in SPL about the
692 device tree it is working with. A value of 0 means that no assumptions
693 are made, and libfdt is able to deal with malicious data. A value of
694 0xff means all assumptions are made and any invalid data may cause
695 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
696
Simon Glass5592a632018-10-01 12:22:21 -0600697config TPL_OF_LIBFDT
698 bool "Enable the FDT library for TPL"
699 default y if TPL_OF_CONTROL
700 help
701 This enables the FDT library (libfdt). It provides functions for
702 accessing binary device tree images in memory, such as adding and
703 removing nodes and properties, scanning through the tree and finding
704 particular compatible nodes. The library operates on a flattened
705 version of the device tree.
706
Simon Glass0d76afc2019-10-27 09:47:40 -0600707config TPL_OF_LIBFDT_ASSUME_MASK
708 hex "Mask of conditions to assume for libfdt"
709 depends on TPL_OF_LIBFDT || FIT
710 default 0xff
711 help
712 Use this to change the assumptions made by libfdt in TPL about the
713 device tree it is working with. A value of 0 means that no assumptions
714 are made, and libfdt is able to deal with malicious data. A value of
715 0xff means all assumptions are made and any invalid data may cause
716 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
717
Heiko Schocherebf7fff2016-10-06 07:31:45 +0200718config FDT_FIXUP_PARTITIONS
719 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
720 depends on OF_LIBFDT
Masahiro Yamadaab948cd2018-07-20 11:04:09 +0900721 depends on CMD_MTDPARTS
Heiko Schocherebf7fff2016-10-06 07:31:45 +0200722 help
723 Allow overwriting defined partitions in the device tree blob
724 using partition info defined in the 'mtdparts' environment
725 variable.
726
Alexander Graf4b6dddc2016-08-19 01:23:23 +0200727menu "System tables"
Alexander Grafe663b352016-08-19 01:23:29 +0200728 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
Alexander Graf4b6dddc2016-08-19 01:23:23 +0200729
Simon Glassd2cb7a22020-11-04 09:57:25 -0700730config BLOBLIST_TABLES
731 bool "Put tables in a bloblist"
Simon Glassf2c14422021-03-15 18:11:22 +1300732 depends on X86 && BLOBLIST
Simon Glassd2cb7a22020-11-04 09:57:25 -0700733 help
734 Normally tables are placed at address 0xf0000 and can be up to 64KB
735 long. With this option, tables are instead placed in the bloblist
736 with a pointer from 0xf0000. The size can then be larger and the
737 tables can be placed high in memory.
738
Alexander Graf4b6dddc2016-08-19 01:23:23 +0200739config GENERATE_SMBIOS_TABLE
740 bool "Generate an SMBIOS (System Management BIOS) table"
741 default y
Alexander Grafe663b352016-08-19 01:23:29 +0200742 depends on X86 || EFI_LOADER
Alexander Graf4b6dddc2016-08-19 01:23:23 +0200743 help
744 The System Management BIOS (SMBIOS) specification addresses how
745 motherboard and system vendors present management information about
746 their products in a standard format by extending the BIOS interface
747 on Intel architecture systems.
748
749 Check http://www.dmtf.org/standards/smbios for details.
750
Simon Glass44c74bd2020-11-05 06:32:11 -0700751 See also SMBIOS_SYSINFO which allows SMBIOS values to be provided in
752 the devicetree.
753
Tero Kristo7d0f3fb2021-06-11 11:45:02 +0300754config LIB_RATIONAL
755 bool "enable continued fraction calculation routines"
756
757config SPL_LIB_RATIONAL
758 bool "enable continued fraction calculation routines for SPL"
759 depends on SPL
760
Alexander Graf4b6dddc2016-08-19 01:23:23 +0200761endmenu
762
AKASHI Takahiro2b121962019-11-13 09:44:53 +0900763config ASN1_COMPILER
764 bool
765
AKASHI Takahiroab8a0e02019-11-13 09:44:55 +0900766config ASN1_DECODER
767 bool
768 help
769 Enable asn1 decoder library.
770
AKASHI Takahiroa9b45e62019-11-13 09:44:57 +0900771config OID_REGISTRY
772 bool
773 help
774 Enable fast lookup object identifier registry.
775
Christian Gmeiner415eab02020-11-03 15:34:51 +0100776config SMBIOS_PARSER
777 bool "SMBIOS parser"
778 help
779 A simple parser for SMBIOS data.
780
Simon Glass867a6ac2015-07-31 09:31:36 -0600781source lib/efi/Kconfig
Alexander Grafed980b82016-03-04 01:10:07 +0100782source lib/efi_loader/Kconfig
Bryan O'Donoghue32ce6172018-03-13 16:50:27 +0000783source lib/optee/Kconfig
Simon Glass867a6ac2015-07-31 09:31:36 -0600784
Thierry Reding54969b42019-03-21 19:10:04 +0100785config TEST_FDTDEC
786 bool "enable fdtdec test"
787 depends on OF_LIBFDT
788
AKASHI Takahiro05429b62019-11-13 09:44:49 +0900789config LIB_DATE
790 bool
791
Keerthy805b3ca2020-02-12 13:55:03 +0530792config LIB_ELF
793 bool
794 help
Patrick Delaunay6205bbb2021-01-04 15:33:28 +0100795 Support basic elf loading/validating functions.
796 This supports for 32 bit and 64 bit versions.
Keerthy805b3ca2020-02-12 13:55:03 +0530797
Patrick Delaunay77b8cfe2021-03-10 10:16:25 +0100798config LMB
799 bool "Enable the logical memory blocks library (lmb)"
800 default y if ARC || ARM || M68K || MICROBLAZE || MIPS || NDS32 || \
801 NIOS2 || PPC || RISCV || SANDBOX || SH || X86 || XTENSA
802 help
803 Support the library logical memory blocks.
804
Patrick Delaunay6d665022021-03-10 10:16:31 +0100805config LMB_USE_MAX_REGIONS
Heinrich Schuchardtac7606a2021-11-14 09:38:53 +0100806 bool "Use a common number of memory and reserved regions in lmb lib"
Patrick Delaunay6d665022021-03-10 10:16:31 +0100807 depends on LMB
808 default y
809 help
810 Define the number of supported memory regions in the library logical
811 memory blocks.
812 This feature allow to reduce the lmb library size by using compiler
813 optimization when LMB_MEMORY_REGIONS == LMB_RESERVED_REGIONS.
Patrick Delaunay4fa01502021-03-10 10:16:28 +0100814
815config LMB_MAX_REGIONS
816 int "Number of memory and reserved regions in lmb lib"
Patrick Delaunay6d665022021-03-10 10:16:31 +0100817 depends on LMB && LMB_USE_MAX_REGIONS
Patrick Delaunay4fa01502021-03-10 10:16:28 +0100818 default 8
819 help
820 Define the number of supported regions, memory and reserved, in the
821 library logical memory blocks.
Patrick Delaunay6d665022021-03-10 10:16:31 +0100822
823config LMB_MEMORY_REGIONS
824 int "Number of memory regions in lmb lib"
825 depends on LMB && !LMB_USE_MAX_REGIONS
826 default 8
827 help
828 Define the number of supported memory regions in the library logical
829 memory blocks.
830 The minimal value is CONFIG_NR_DRAM_BANKS.
831
832config LMB_RESERVED_REGIONS
833 int "Number of reserved regions in lmb lib"
834 depends on LMB && !LMB_USE_MAX_REGIONS
835 default 8
836 help
837 Define the number of supported reserved regions in the library logical
838 memory blocks.
839
Masahiro Yamadaed363232014-09-16 16:32:58 +0900840endmenu
Aswath Govindrajuc5891322020-12-03 10:55:45 +0530841
842config PHANDLE_CHECK_SEQ
843 bool "Enable phandle check while getting sequence number"
Aswath Govindrajuc5891322020-12-03 10:55:45 +0530844 help
845 When there are multiple device tree nodes with same name,
846 enable this config option to distinguish them using
847 phandles in fdtdec_get_alias_seq() function.