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Commit | Line | Data |
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ed36323f MY |
1 | menu "Library routines" |
2 | ||
6ef2f901 AF |
3 | config 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 | ||
b0928da6 MY |
10 | config 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 | ||
36c1877c FA |
18 | config DYNAMIC_CRC_TABLE |
19 | bool "Enable Dynamic tables for CRC" | |
20 | help | |
21 | Enable this option to calculate entries for CRC tables at runtime. | |
22 | This can be helpful when reducing the size of the build image | |
23 | ||
45ccec8f MY |
24 | config HAVE_PRIVATE_LIBGCC |
25 | bool | |
26 | ||
a451bc27 AF |
27 | config LIB_UUID |
28 | bool | |
29 | ||
45ccec8f MY |
30 | config USE_PRIVATE_LIBGCC |
31 | bool "Use private libgcc" | |
32 | depends on HAVE_PRIVATE_LIBGCC | |
91b86e21 | 33 | default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS) |
45ccec8f MY |
34 | help |
35 | This option allows you to use the built-in libgcc implementation | |
67976306 | 36 | of U-Boot instead of the one provided by the compiler. |
45ccec8f MY |
37 | If unsure, say N. |
38 | ||
8c688bc4 MY |
39 | config SYS_HZ |
40 | int | |
41 | default 1000 | |
42 | help | |
43 | The frequency of the timer returned by get_timer(). | |
44 | get_timer() must operate in milliseconds and this option must be | |
45 | set to 1000. | |
46 | ||
7d9cde10 SR |
47 | config USE_TINY_PRINTF |
48 | bool "Enable tiny printf() version" | |
49 | help | |
50 | This option enables a tiny, stripped down printf version. | |
51 | This should only be used in space limited environments, | |
52 | like SPL versions with hard memory limits. This version | |
53 | reduces the code size by about 2.5KiB on armv7. | |
54 | ||
55 | The supported format specifiers are %c, %s, %u/%d and %x. | |
56 | ||
7e3caa81 MY |
57 | config PANIC_HANG |
58 | bool "Do not reset the system on fatal error" | |
59 | help | |
60 | Define this option to stop the system in case of a fatal error, | |
61 | so that you have to reset it manually. This is probably NOT a good | |
62 | idea for an embedded system where you want the system to reboot | |
63 | automatically as fast as possible, but it may be useful during | |
64 | development since you can try to debug the conditions that lead to | |
65 | the situation. | |
66 | ||
1a60650c JH |
67 | config REGEX |
68 | bool "Enable regular expression support" | |
acd4d334 | 69 | default n if ARCH_SUNXI |
f7848d90 | 70 | default y if NET |
1a60650c JH |
71 | help |
72 | If this variable is defined, U-Boot is linked against the | |
73 | SLRE (Super Light Regular Expression) library, which adds | |
74 | regex support to some commands, for example "env grep" and | |
75 | "setexpr". | |
76 | ||
a5a37567 AF |
77 | choice |
78 | prompt "Pseudo-random library support type" | |
79 | depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID | |
80 | default LIB_RAND | |
3850dbe8 | 81 | help |
a5a37567 AF |
82 | Select the library to provide pseudo-random number generator |
83 | functions. LIB_HW_RAND supports certain hardware engines that | |
84 | provide this functionality. If in doubt, select LIB_RAND. | |
85 | ||
86 | config LIB_RAND | |
87 | bool "Pseudo-random library support" | |
88 | ||
89 | config LIB_HW_RAND | |
90 | bool "HW Engine for random libray support" | |
91 | ||
92 | endchoice | |
9ba9e85f | 93 | |
ab4458bd SG |
94 | config SPL_TINY_MEMSET |
95 | bool "Use a very small memset() in SPL" | |
96 | help | |
97 | The faster memset() is the arch-specific one (if available) enabled | |
98 | by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get | |
99 | better performance by writing a word at a time. But in very | |
100 | size-constrained envrionments even this may be too big. Enable this | |
101 | option to reduce code size slightly at the cost of some speed. | |
102 | ||
96b9082c PT |
103 | config TPL_TINY_MEMSET |
104 | bool "Use a very small memset() in TPL" | |
105 | help | |
106 | The faster memset() is the arch-specific one (if available) enabled | |
107 | by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get | |
108 | better performance by writing a word at a time. But in very | |
109 | size-constrained envrionments even this may be too big. Enable this | |
110 | option to reduce code size slightly at the cost of some speed. | |
111 | ||
aa049152 BB |
112 | config RBTREE |
113 | bool | |
114 | ||
da5337a6 NH |
115 | config BITREVERSE |
116 | bool "Bit reverse library from Linux" | |
117 | ||
d1389403 SG |
118 | source lib/dhry/Kconfig |
119 | ||
b1a873df SG |
120 | menu "Security support" |
121 | ||
122 | config AES | |
123 | bool "Support the AES algorithm" | |
124 | help | |
125 | This provides a means to encrypt and decrypt data using the AES | |
126 | (Advanced Encryption Standard). This algorithm uses a symetric key | |
127 | and is widely used as a streaming cipher. Different key lengths are | |
128 | supported by the algorithm but only a 128-bit key is supported at | |
129 | present. | |
130 | ||
d9f23c7f | 131 | source lib/rsa/Kconfig |
c4beb22f | 132 | |
a7d660bc SG |
133 | config TPM |
134 | bool "Trusted Platform Module (TPM) Support" | |
2419cd16 | 135 | depends on DM |
a7d660bc SG |
136 | help |
137 | This enables support for TPMs which can be used to provide security | |
138 | features for your board. The TPM can be connected via LPC or I2C | |
139 | and a sandbox TPM is provided for testing purposes. Use the 'tpm' | |
140 | command to interactive the TPM. Driver model support is provided | |
141 | for the low-level TPM interface, but only one TPM is supported at | |
142 | a time by the TPM library. | |
143 | ||
b1a873df SG |
144 | endmenu |
145 | ||
94e3c8c4 | 146 | menu "Hashing Support" |
147 | ||
148 | config SHA1 | |
149 | bool "Enable SHA1 support" | |
150 | help | |
151 | This option enables support of hashing using SHA1 algorithm. | |
152 | The hash is calculated in software. | |
153 | The SHA1 algorithm produces a 160-bit (20-byte) hash value | |
154 | (digest). | |
155 | ||
156 | config SHA256 | |
157 | bool "Enable SHA256 support" | |
158 | help | |
159 | This option enables support of hashing using SHA256 algorithm. | |
160 | The hash is calculated in software. | |
161 | The SHA256 algorithm produces a 256-bit (32-byte) hash value | |
162 | (digest). | |
163 | ||
164 | config SHA_HW_ACCEL | |
165 | bool "Enable hashing using hardware" | |
166 | help | |
167 | This option enables hardware acceleration | |
168 | for SHA1/SHA256 hashing. | |
169 | This affects the 'hash' command and also the | |
170 | hash_lookup_algo() function. | |
171 | ||
172 | config SHA_PROG_HW_ACCEL | |
173 | bool "Enable Progressive hashing support using hardware" | |
174 | depends on SHA_HW_ACCEL | |
175 | help | |
176 | This option enables hardware-acceleration for | |
177 | SHA1/SHA256 progressive hashing. | |
178 | Data can be streamed in a block at a time and the hashing | |
179 | is performed in hardware. | |
bea79d7d AP |
180 | |
181 | config MD5 | |
182 | bool | |
183 | ||
85d8bf57 MB |
184 | config CRC32C |
185 | bool | |
186 | ||
94e3c8c4 | 187 | endmenu |
188 | ||
027b728d JW |
189 | menu "Compression Support" |
190 | ||
191 | config LZ4 | |
192 | bool "Enable LZ4 decompression support" | |
193 | help | |
194 | If this option is set, support for LZ4 compressed images | |
195 | is included. The LZ4 algorithm can run in-place as long as the | |
196 | compressed image is loaded to the end of the output buffer, and | |
197 | trades lower compression ratios for much faster decompression. | |
198 | ||
199 | NOTE: This implements the release version of the LZ4 frame | |
200 | format as generated by default by the 'lz4' command line tool. | |
201 | This is not the same as the outdated, less efficient legacy | |
202 | frame format currently (2015) implemented in the Linux kernel | |
203 | (generated by 'lz4 -l'). The two formats are incompatible. | |
204 | ||
aed998aa SG |
205 | config LZMA |
206 | bool "Enable LZMA decompression support" | |
207 | help | |
208 | This enables support for LZMA (Lempel-Ziv-Markov chain algorithm), | |
209 | a dictionary compression algorithm that provides a high compression | |
210 | ratio and fairly fast decompression speed. See also | |
211 | CONFIG_CMD_LZMADEC which provides a decode command. | |
212 | ||
173aafbf | 213 | config LZO |
d56b4b19 TR |
214 | bool "Enable LZO decompression support" |
215 | help | |
216 | This enables support for LZO compression algorithm.r | |
7264f292 | 217 | |
f52bdf4b JJH |
218 | config SPL_LZO |
219 | bool "Enable LZO decompression support in SPL" | |
220 | help | |
221 | This enables support for LZO compression algorithm in the SPL. | |
222 | ||
7264f292 YS |
223 | config SPL_GZIP |
224 | bool "Enable gzip decompression support for SPL build" | |
225 | select SPL_ZLIB | |
226 | help | |
227 | This enables support for GZIP compression altorithm for SPL boot. | |
228 | ||
229 | config SPL_ZLIB | |
230 | bool | |
231 | help | |
232 | This enables compression lib for SPL boot. | |
233 | ||
027b728d JW |
234 | endmenu |
235 | ||
6501ff62 PM |
236 | config ERRNO_STR |
237 | bool "Enable function for getting errno-related string message" | |
238 | help | |
239 | The function errno_str(int errno), returns a pointer to the errno | |
240 | corresponding text message: | |
241 | - if errno is null or positive number - a pointer to "Success" message | |
242 | - if errno is negative - a pointer to errno related message | |
243 | ||
69e173eb SG |
244 | config OF_LIBFDT |
245 | bool "Enable the FDT library" | |
246 | default y if OF_CONTROL | |
247 | help | |
248 | This enables the FDT library (libfdt). It provides functions for | |
249 | accessing binary device tree images in memory, such as adding and | |
f1a7ba1d | 250 | removing nodes and properties, scanning through the tree and finding |
69e173eb SG |
251 | particular compatible nodes. The library operates on a flattened |
252 | version of the device tree. | |
253 | ||
ddf67f71 MR |
254 | config OF_LIBFDT_OVERLAY |
255 | bool "Enable the FDT library overlay support" | |
256 | help | |
257 | This enables the FDT library (libfdt) overlay support. | |
258 | ||
aa34fbc0 SG |
259 | config SPL_OF_LIBFDT |
260 | bool "Enable the FDT library for SPL" | |
261 | default y if SPL_OF_CONTROL | |
262 | help | |
263 | This enables the FDT library (libfdt). It provides functions for | |
264 | accessing binary device tree images in memory, such as adding and | |
f1a7ba1d | 265 | removing nodes and properties, scanning through the tree and finding |
aa34fbc0 SG |
266 | particular compatible nodes. The library operates on a flattened |
267 | version of the device tree. | |
268 | ||
ebf7fff2 HS |
269 | config FDT_FIXUP_PARTITIONS |
270 | bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" | |
271 | depends on OF_LIBFDT | |
272 | default n | |
273 | help | |
274 | Allow overwriting defined partitions in the device tree blob | |
275 | using partition info defined in the 'mtdparts' environment | |
276 | variable. | |
277 | ||
4b6dddc2 | 278 | menu "System tables" |
e663b350 | 279 | depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) |
4b6dddc2 AG |
280 | |
281 | config GENERATE_SMBIOS_TABLE | |
282 | bool "Generate an SMBIOS (System Management BIOS) table" | |
283 | default y | |
e663b350 | 284 | depends on X86 || EFI_LOADER |
4b6dddc2 AG |
285 | help |
286 | The System Management BIOS (SMBIOS) specification addresses how | |
287 | motherboard and system vendors present management information about | |
288 | their products in a standard format by extending the BIOS interface | |
289 | on Intel architecture systems. | |
290 | ||
291 | Check http://www.dmtf.org/standards/smbios for details. | |
292 | ||
293 | config SMBIOS_MANUFACTURER | |
294 | string "SMBIOS Manufacturer" | |
295 | depends on GENERATE_SMBIOS_TABLE | |
296 | default SYS_VENDOR | |
297 | help | |
298 | The board manufacturer to store in SMBIOS structures. | |
299 | Change this to override the default one (CONFIG_SYS_VENDOR). | |
300 | ||
301 | config SMBIOS_PRODUCT_NAME | |
302 | string "SMBIOS Product Name" | |
303 | depends on GENERATE_SMBIOS_TABLE | |
304 | default SYS_BOARD | |
305 | help | |
306 | The product name to store in SMBIOS structures. | |
307 | Change this to override the default one (CONFIG_SYS_BOARD). | |
308 | ||
309 | endmenu | |
310 | ||
867a6ac8 | 311 | source lib/efi/Kconfig |
ed980b8c | 312 | source lib/efi_loader/Kconfig |
867a6ac8 | 313 | |
ed36323f | 314 | endmenu |