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Masahiro Yamadaed363232014-09-16 16:32:58 +09001menu "Library routines"
2
Masahiro Yamadab0928da2014-09-16 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 Yamada45ccec82014-10-24 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
Marek Vasut91b86e22016-05-26 18:01:47 +020017 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
Masahiro Yamada45ccec82014-10-24 01:30:43 +090018 help
19 This option allows you to use the built-in libgcc implementation
Masahiro Yamada67976302016-03-30 20:17:42 +090020 of U-Boot instead of the one provided by the compiler.
Masahiro Yamada45ccec82014-10-24 01:30:43 +090021 If unsure, say N.
22
Masahiro Yamada8c688bc2014-10-24 01:30:40 +090023config SYS_HZ
24 int
25 default 1000
26 help
27 The frequency of the timer returned by get_timer().
28 get_timer() must operate in milliseconds and this option must be
29 set to 1000.
30
Stefan Roese7d9cde12015-11-23 07:00:22 +010031config USE_TINY_PRINTF
32 bool "Enable tiny printf() version"
33 help
34 This option enables a tiny, stripped down printf version.
35 This should only be used in space limited environments,
36 like SPL versions with hard memory limits. This version
37 reduces the code size by about 2.5KiB on armv7.
38
39 The supported format specifiers are %c, %s, %u/%d and %x.
40
Joe Hershberger1a606502015-04-21 17:02:42 -050041config REGEX
42 bool "Enable regular expression support"
Joe Hershbergerf7848d92015-06-22 17:57:36 -050043 default y if NET
Joe Hershberger1a606502015-04-21 17:02:42 -050044 help
45 If this variable is defined, U-Boot is linked against the
46 SLRE (Super Light Regular Expression) library, which adds
47 regex support to some commands, for example "env grep" and
48 "setexpr".
49
Michal Simek9ba9e852015-05-25 11:37:22 +020050config LIB_RAND
Masahiro Yamada3850dbe2015-06-11 19:16:43 +090051 bool "Pseudo-random library support "
52 help
53 This library provides pseudo-random number generator functions.
Michal Simek9ba9e852015-05-25 11:37:22 +020054
Simon Glassd1389402015-06-23 15:38:23 -060055source lib/dhry/Kconfig
56
Ruchika Guptad9f23c72015-01-23 16:01:56 +053057source lib/rsa/Kconfig
Ruchika Guptac4beb222015-01-23 16:01:51 +053058
Simon Glassa7d660b2015-08-22 18:31:19 -060059config TPM
60 bool "Trusted Platform Module (TPM) Support"
Simon Glass2419cd12015-10-03 06:39:36 -060061 depends on DM
Simon Glassa7d660b2015-08-22 18:31:19 -060062 help
63 This enables support for TPMs which can be used to provide security
64 features for your board. The TPM can be connected via LPC or I2C
65 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
66 command to interactive the TPM. Driver model support is provided
67 for the low-level TPM interface, but only one TPM is supported at
68 a time by the TPM library.
69
gaurav rana94e3c8c2015-02-20 12:51:46 +053070menu "Hashing Support"
71
72config SHA1
73 bool "Enable SHA1 support"
74 help
75 This option enables support of hashing using SHA1 algorithm.
76 The hash is calculated in software.
77 The SHA1 algorithm produces a 160-bit (20-byte) hash value
78 (digest).
79
80config SHA256
81 bool "Enable SHA256 support"
82 help
83 This option enables support of hashing using SHA256 algorithm.
84 The hash is calculated in software.
85 The SHA256 algorithm produces a 256-bit (32-byte) hash value
86 (digest).
87
88config SHA_HW_ACCEL
89 bool "Enable hashing using hardware"
90 help
91 This option enables hardware acceleration
92 for SHA1/SHA256 hashing.
93 This affects the 'hash' command and also the
94 hash_lookup_algo() function.
95
96config SHA_PROG_HW_ACCEL
97 bool "Enable Progressive hashing support using hardware"
98 depends on SHA_HW_ACCEL
99 help
100 This option enables hardware-acceleration for
101 SHA1/SHA256 progressive hashing.
102 Data can be streamed in a block at a time and the hashing
103 is performed in hardware.
104endmenu
105
Julius Werner027b7282015-10-06 20:03:53 -0700106menu "Compression Support"
107
108config LZ4
109 bool "Enable LZ4 decompression support"
110 help
111 If this option is set, support for LZ4 compressed images
112 is included. The LZ4 algorithm can run in-place as long as the
113 compressed image is loaded to the end of the output buffer, and
114 trades lower compression ratios for much faster decompression.
115
116 NOTE: This implements the release version of the LZ4 frame
117 format as generated by default by the 'lz4' command line tool.
118 This is not the same as the outdated, less efficient legacy
119 frame format currently (2015) implemented in the Linux kernel
120 (generated by 'lz4 -l'). The two formats are incompatible.
121
122endmenu
123
Przemyslaw Marczak6501ff62015-04-20 20:07:40 +0200124config ERRNO_STR
125 bool "Enable function for getting errno-related string message"
126 help
127 The function errno_str(int errno), returns a pointer to the errno
128 corresponding text message:
129 - if errno is null or positive number - a pointer to "Success" message
130 - if errno is negative - a pointer to errno related message
131
Simon Glass69e173e2016-02-22 22:55:42 -0700132config OF_LIBFDT
133 bool "Enable the FDT library"
134 default y if OF_CONTROL
135 help
136 This enables the FDT library (libfdt). It provides functions for
137 accessing binary device tree images in memory, such as adding and
138 removing notes and properties, scanning through the tree and finding
139 particular compatible nodes. The library operates on a flattened
140 version of the device tree.
141
Simon Glassaa34fbc2016-02-22 22:55:45 -0700142config SPL_OF_LIBFDT
143 bool "Enable the FDT library for SPL"
144 default y if SPL_OF_CONTROL
145 help
146 This enables the FDT library (libfdt). It provides functions for
147 accessing binary device tree images in memory, such as adding and
148 removing notes and properties, scanning through the tree and finding
149 particular compatible nodes. The library operates on a flattened
150 version of the device tree.
151
Simon Glass867a6ac2015-07-31 09:31:36 -0600152source lib/efi/Kconfig
Alexander Grafed980b82016-03-04 01:10:07 +0100153source lib/efi_loader/Kconfig
Simon Glass867a6ac2015-07-31 09:31:36 -0600154
Masahiro Yamadaed363232014-09-16 16:32:58 +0900155endmenu