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Masahiro Yamadaf3e12b72014-09-16 16:32:58 +09001menu "Library routines"
2
Adam Ford02bf5362017-08-11 09:46:05 -05003config BCH
4 bool "Enable Software based BCH ECC"
5 help
6 Enables software based BCH ECC algorithm present in lib/bch.c
7 This is used by SoC platforms which do not have built-in ELM
8 hardware engine required for BCH ECC correction.
9
Masahiro Yamada3f053fe2014-09-16 16:32:59 +090010config CC_OPTIMIZE_LIBS_FOR_SPEED
11 bool "Optimize libraries for speed"
12 help
13 Enabling this option will pass "-O2" to gcc when compiling
14 under "lib" directory.
15
16 If unsure, say N.
17
Masahiro Yamada9520b712014-10-24 01:30:43 +090018config HAVE_PRIVATE_LIBGCC
19 bool
20
21config USE_PRIVATE_LIBGCC
22 bool "Use private libgcc"
23 depends on HAVE_PRIVATE_LIBGCC
Marek Vasut4e0126e2016-05-26 18:01:47 +020024 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
Masahiro Yamada9520b712014-10-24 01:30:43 +090025 help
26 This option allows you to use the built-in libgcc implementation
Masahiro Yamada1c6a5e42016-03-30 20:17:42 +090027 of U-Boot instead of the one provided by the compiler.
Masahiro Yamada9520b712014-10-24 01:30:43 +090028 If unsure, say N.
29
Masahiro Yamadae301fa02014-10-24 01:30:40 +090030config SYS_HZ
31 int
32 default 1000
33 help
34 The frequency of the timer returned by get_timer().
35 get_timer() must operate in milliseconds and this option must be
36 set to 1000.
37
Stefan Roese363ab7b2015-11-23 07:00:22 +010038config USE_TINY_PRINTF
39 bool "Enable tiny printf() version"
40 help
41 This option enables a tiny, stripped down printf version.
42 This should only be used in space limited environments,
43 like SPL versions with hard memory limits. This version
44 reduces the code size by about 2.5KiB on armv7.
45
46 The supported format specifiers are %c, %s, %u/%d and %x.
47
Joe Hershberger937d3e82015-04-21 17:02:42 -050048config REGEX
49 bool "Enable regular expression support"
Joe Hershberger8ab8b722015-06-22 17:57:36 -050050 default y if NET
Joe Hershberger937d3e82015-04-21 17:02:42 -050051 help
52 If this variable is defined, U-Boot is linked against the
53 SLRE (Super Light Regular Expression) library, which adds
54 regex support to some commands, for example "env grep" and
55 "setexpr".
56
Michal Simek2c1b1db2015-05-25 11:37:22 +020057config LIB_RAND
Masahiro Yamada2743c072015-06-11 19:16:43 +090058 bool "Pseudo-random library support "
59 help
60 This library provides pseudo-random number generator functions.
Michal Simek2c1b1db2015-05-25 11:37:22 +020061
Simon Glasse2f94ae2017-04-02 09:50:28 -060062config SPL_TINY_MEMSET
63 bool "Use a very small memset() in SPL"
64 help
65 The faster memset() is the arch-specific one (if available) enabled
66 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
67 better performance by writing a word at a time. But in very
68 size-constrained envrionments even this may be too big. Enable this
69 option to reduce code size slightly at the cost of some speed.
70
Philipp Tomsichfefc4ec2017-08-03 22:52:04 +020071config TPL_TINY_MEMSET
72 bool "Use a very small memset() in TPL"
73 help
74 The faster memset() is the arch-specific one (if available) enabled
75 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
76 better performance by writing a word at a time. But in very
77 size-constrained envrionments even this may be too big. Enable this
78 option to reduce code size slightly at the cost of some speed.
79
Boris Brezillon627dc182017-02-27 18:22:05 +010080config RBTREE
81 bool
82
Nandor Hand5ea84a2017-11-08 15:35:14 +000083config BITREVERSE
84 bool "Bit reverse library from Linux"
85
Simon Glass99dbe4b2015-06-23 15:38:23 -060086source lib/dhry/Kconfig
87
Simon Glass528fdd12017-04-26 22:27:49 -060088menu "Security support"
89
90config AES
91 bool "Support the AES algorithm"
92 help
93 This provides a means to encrypt and decrypt data using the AES
94 (Advanced Encryption Standard). This algorithm uses a symetric key
95 and is widely used as a streaming cipher. Different key lengths are
96 supported by the algorithm but only a 128-bit key is supported at
97 present.
98
Ruchika Gupta4acd8c42015-01-23 16:01:56 +053099source lib/rsa/Kconfig
Ruchika Gupta2c3822e2015-01-23 16:01:51 +0530100
Simon Glass350497c2015-08-22 18:31:19 -0600101config TPM
102 bool "Trusted Platform Module (TPM) Support"
Simon Glasscf294b02015-10-03 06:39:36 -0600103 depends on DM
Simon Glass350497c2015-08-22 18:31:19 -0600104 help
105 This enables support for TPMs which can be used to provide security
106 features for your board. The TPM can be connected via LPC or I2C
107 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
108 command to interactive the TPM. Driver model support is provided
109 for the low-level TPM interface, but only one TPM is supported at
110 a time by the TPM library.
111
Simon Glass528fdd12017-04-26 22:27:49 -0600112endmenu
113
gaurav ranaef201592015-02-20 12:51:46 +0530114menu "Hashing Support"
115
116config SHA1
117 bool "Enable SHA1 support"
118 help
119 This option enables support of hashing using SHA1 algorithm.
120 The hash is calculated in software.
121 The SHA1 algorithm produces a 160-bit (20-byte) hash value
122 (digest).
123
124config SHA256
125 bool "Enable SHA256 support"
126 help
127 This option enables support of hashing using SHA256 algorithm.
128 The hash is calculated in software.
129 The SHA256 algorithm produces a 256-bit (32-byte) hash value
130 (digest).
131
132config SHA_HW_ACCEL
133 bool "Enable hashing using hardware"
134 help
135 This option enables hardware acceleration
136 for SHA1/SHA256 hashing.
137 This affects the 'hash' command and also the
138 hash_lookup_algo() function.
139
140config SHA_PROG_HW_ACCEL
141 bool "Enable Progressive hashing support using hardware"
142 depends on SHA_HW_ACCEL
143 help
144 This option enables hardware-acceleration for
145 SHA1/SHA256 progressive hashing.
146 Data can be streamed in a block at a time and the hashing
147 is performed in hardware.
Andre Przywaraf0fa1132017-03-15 01:19:05 +0000148
149config MD5
150 bool
151
Marek BehĂșncdccc032017-09-03 17:00:23 +0200152config CRC32C
153 bool
154
gaurav ranaef201592015-02-20 12:51:46 +0530155endmenu
156
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700157menu "Compression Support"
158
159config LZ4
160 bool "Enable LZ4 decompression support"
161 help
162 If this option is set, support for LZ4 compressed images
163 is included. The LZ4 algorithm can run in-place as long as the
164 compressed image is loaded to the end of the output buffer, and
165 trades lower compression ratios for much faster decompression.
166
167 NOTE: This implements the release version of the LZ4 frame
168 format as generated by default by the 'lz4' command line tool.
169 This is not the same as the outdated, less efficient legacy
170 frame format currently (2015) implemented in the Linux kernel
171 (generated by 'lz4 -l'). The two formats are incompatible.
172
Simon Glass264aa5f2017-05-17 03:25:42 -0600173config LZMA
174 bool "Enable LZMA decompression support"
175 help
176 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
177 a dictionary compression algorithm that provides a high compression
178 ratio and fairly fast decompression speed. See also
179 CONFIG_CMD_LZMADEC which provides a decode command.
180
Boris Brezillonaa57d0f2017-02-27 18:22:06 +0100181config LZO
Tom Rinic20bb732017-07-22 18:36:16 -0400182 bool "Enable LZO decompression support"
183 help
184 This enables support for LZO compression algorithm.r
York Suna6945fe2017-08-15 11:14:43 -0700185
Jean-Jacques Hiblotdbde2882017-09-15 12:57:30 +0200186config SPL_LZO
187 bool "Enable LZO decompression support in SPL"
188 help
189 This enables support for LZO compression algorithm in the SPL.
190
York Suna6945fe2017-08-15 11:14:43 -0700191config SPL_GZIP
192 bool "Enable gzip decompression support for SPL build"
193 select SPL_ZLIB
194 help
195 This enables support for GZIP compression altorithm for SPL boot.
196
197config SPL_ZLIB
198 bool
199 help
200 This enables compression lib for SPL boot.
201
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700202endmenu
203
Przemyslaw Marczak37550132015-04-20 20:07:40 +0200204config ERRNO_STR
205 bool "Enable function for getting errno-related string message"
206 help
207 The function errno_str(int errno), returns a pointer to the errno
208 corresponding text message:
209 - if errno is null or positive number - a pointer to "Success" message
210 - if errno is negative - a pointer to errno related message
211
Simon Glassa66c5412016-02-22 22:55:42 -0700212config OF_LIBFDT
213 bool "Enable the FDT library"
214 default y if OF_CONTROL
215 help
216 This enables the FDT library (libfdt). It provides functions for
217 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinda707d42017-08-18 17:58:51 +0200218 removing nodes and properties, scanning through the tree and finding
Simon Glassa66c5412016-02-22 22:55:42 -0700219 particular compatible nodes. The library operates on a flattened
220 version of the device tree.
221
Maxime Ripard9e901ce2016-07-05 10:26:44 +0200222config OF_LIBFDT_OVERLAY
223 bool "Enable the FDT library overlay support"
224 help
225 This enables the FDT library (libfdt) overlay support.
226
Simon Glass8b426922016-02-22 22:55:45 -0700227config SPL_OF_LIBFDT
228 bool "Enable the FDT library for SPL"
229 default y if SPL_OF_CONTROL
230 help
231 This enables the FDT library (libfdt). It provides functions for
232 accessing binary device tree images in memory, such as adding and
Anatolij Gustschinda707d42017-08-18 17:58:51 +0200233 removing nodes and properties, scanning through the tree and finding
Simon Glass8b426922016-02-22 22:55:45 -0700234 particular compatible nodes. The library operates on a flattened
235 version of the device tree.
236
Heiko Schocherc9ab9102016-10-06 07:31:45 +0200237config FDT_FIXUP_PARTITIONS
238 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
239 depends on OF_LIBFDT
240 default n
241 help
242 Allow overwriting defined partitions in the device tree blob
243 using partition info defined in the 'mtdparts' environment
244 variable.
245
Alexander Graffb228082016-08-19 01:23:23 +0200246menu "System tables"
Alexander Graf66f96e12016-08-19 01:23:29 +0200247 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
Alexander Graffb228082016-08-19 01:23:23 +0200248
249config GENERATE_SMBIOS_TABLE
250 bool "Generate an SMBIOS (System Management BIOS) table"
251 default y
Alexander Graf66f96e12016-08-19 01:23:29 +0200252 depends on X86 || EFI_LOADER
Alexander Graffb228082016-08-19 01:23:23 +0200253 help
254 The System Management BIOS (SMBIOS) specification addresses how
255 motherboard and system vendors present management information about
256 their products in a standard format by extending the BIOS interface
257 on Intel architecture systems.
258
259 Check http://www.dmtf.org/standards/smbios for details.
260
261config SMBIOS_MANUFACTURER
262 string "SMBIOS Manufacturer"
263 depends on GENERATE_SMBIOS_TABLE
264 default SYS_VENDOR
265 help
266 The board manufacturer to store in SMBIOS structures.
267 Change this to override the default one (CONFIG_SYS_VENDOR).
268
269config SMBIOS_PRODUCT_NAME
270 string "SMBIOS Product Name"
271 depends on GENERATE_SMBIOS_TABLE
272 default SYS_BOARD
273 help
274 The product name to store in SMBIOS structures.
275 Change this to override the default one (CONFIG_SYS_BOARD).
276
277endmenu
278
Simon Glass9539e692015-07-31 09:31:36 -0600279source lib/efi/Kconfig
Alexander Graf67ee7052016-03-04 01:10:07 +0100280source lib/efi_loader/Kconfig
Simon Glass9539e692015-07-31 09:31:36 -0600281
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +0900282endmenu