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Masahiro Yamadaf3e12b72014-09-16 16:32:58 +09001menu "Library routines"
2
Masahiro Yamada3f053fe2014-09-16 16:32:59 +09003config CC_OPTIMIZE_LIBS_FOR_SPEED
4 bool "Optimize libraries for speed"
5 help
6 Enabling this option will pass "-O2" to gcc when compiling
7 under "lib" directory.
8
9 If unsure, say N.
10
Masahiro Yamada9520b712014-10-24 01:30:43 +090011config HAVE_PRIVATE_LIBGCC
12 bool
13
14config USE_PRIVATE_LIBGCC
15 bool "Use private libgcc"
16 depends on HAVE_PRIVATE_LIBGCC
17 help
18 This option allows you to use the built-in libgcc implementation
Bin Meng75574052016-02-05 19:30:11 -080019 of U-Boot instead of the one privided by the compiler.
Masahiro Yamada9520b712014-10-24 01:30:43 +090020 If unsure, say N.
21
Masahiro Yamadae301fa02014-10-24 01:30:40 +090022config SYS_HZ
23 int
24 default 1000
25 help
26 The frequency of the timer returned by get_timer().
27 get_timer() must operate in milliseconds and this option must be
28 set to 1000.
29
Stefan Roese363ab7b2015-11-23 07:00:22 +010030config USE_TINY_PRINTF
31 bool "Enable tiny printf() version"
32 help
33 This option enables a tiny, stripped down printf version.
34 This should only be used in space limited environments,
35 like SPL versions with hard memory limits. This version
36 reduces the code size by about 2.5KiB on armv7.
37
38 The supported format specifiers are %c, %s, %u/%d and %x.
39
Joe Hershberger937d3e82015-04-21 17:02:42 -050040config REGEX
41 bool "Enable regular expression support"
Joe Hershberger8ab8b722015-06-22 17:57:36 -050042 default y if NET
Joe Hershberger937d3e82015-04-21 17:02:42 -050043 help
44 If this variable is defined, U-Boot is linked against the
45 SLRE (Super Light Regular Expression) library, which adds
46 regex support to some commands, for example "env grep" and
47 "setexpr".
48
Michal Simek2c1b1db2015-05-25 11:37:22 +020049config LIB_RAND
Masahiro Yamada2743c072015-06-11 19:16:43 +090050 bool "Pseudo-random library support "
51 help
52 This library provides pseudo-random number generator functions.
Michal Simek2c1b1db2015-05-25 11:37:22 +020053
Simon Glass99dbe4b2015-06-23 15:38:23 -060054source lib/dhry/Kconfig
55
Ruchika Gupta4acd8c42015-01-23 16:01:56 +053056source lib/rsa/Kconfig
Ruchika Gupta2c3822e2015-01-23 16:01:51 +053057
Simon Glass350497c2015-08-22 18:31:19 -060058config TPM
59 bool "Trusted Platform Module (TPM) Support"
Simon Glasscf294b02015-10-03 06:39:36 -060060 depends on DM
Simon Glass350497c2015-08-22 18:31:19 -060061 help
62 This enables support for TPMs which can be used to provide security
63 features for your board. The TPM can be connected via LPC or I2C
64 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
65 command to interactive the TPM. Driver model support is provided
66 for the low-level TPM interface, but only one TPM is supported at
67 a time by the TPM library.
68
gaurav ranaef201592015-02-20 12:51:46 +053069menu "Hashing Support"
70
71config SHA1
72 bool "Enable SHA1 support"
73 help
74 This option enables support of hashing using SHA1 algorithm.
75 The hash is calculated in software.
76 The SHA1 algorithm produces a 160-bit (20-byte) hash value
77 (digest).
78
79config SHA256
80 bool "Enable SHA256 support"
81 help
82 This option enables support of hashing using SHA256 algorithm.
83 The hash is calculated in software.
84 The SHA256 algorithm produces a 256-bit (32-byte) hash value
85 (digest).
86
87config SHA_HW_ACCEL
88 bool "Enable hashing using hardware"
89 help
90 This option enables hardware acceleration
91 for SHA1/SHA256 hashing.
92 This affects the 'hash' command and also the
93 hash_lookup_algo() function.
94
95config SHA_PROG_HW_ACCEL
96 bool "Enable Progressive hashing support using hardware"
97 depends on SHA_HW_ACCEL
98 help
99 This option enables hardware-acceleration for
100 SHA1/SHA256 progressive hashing.
101 Data can be streamed in a block at a time and the hashing
102 is performed in hardware.
103endmenu
104
Julius Wernerf41a3ca2015-10-06 20:03:53 -0700105menu "Compression Support"
106
107config LZ4
108 bool "Enable LZ4 decompression support"
109 help
110 If this option is set, support for LZ4 compressed images
111 is included. The LZ4 algorithm can run in-place as long as the
112 compressed image is loaded to the end of the output buffer, and
113 trades lower compression ratios for much faster decompression.
114
115 NOTE: This implements the release version of the LZ4 frame
116 format as generated by default by the 'lz4' command line tool.
117 This is not the same as the outdated, less efficient legacy
118 frame format currently (2015) implemented in the Linux kernel
119 (generated by 'lz4 -l'). The two formats are incompatible.
120
121endmenu
122
Przemyslaw Marczak37550132015-04-20 20:07:40 +0200123config ERRNO_STR
124 bool "Enable function for getting errno-related string message"
125 help
126 The function errno_str(int errno), returns a pointer to the errno
127 corresponding text message:
128 - if errno is null or positive number - a pointer to "Success" message
129 - if errno is negative - a pointer to errno related message
130
Simon Glassa66c5412016-02-22 22:55:42 -0700131config OF_LIBFDT
132 bool "Enable the FDT library"
133 default y if OF_CONTROL
134 help
135 This enables the FDT library (libfdt). It provides functions for
136 accessing binary device tree images in memory, such as adding and
137 removing notes and properties, scanning through the tree and finding
138 particular compatible nodes. The library operates on a flattened
139 version of the device tree.
140
Simon Glass9539e692015-07-31 09:31:36 -0600141source lib/efi/Kconfig
142
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +0900143endmenu