]>
Commit | Line | Data |
---|---|---|
1 | menu "Library routines" | |
2 | ||
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 | ||
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 | ||
18 | config HAVE_PRIVATE_LIBGCC | |
19 | bool | |
20 | ||
21 | config USE_PRIVATE_LIBGCC | |
22 | bool "Use private libgcc" | |
23 | depends on HAVE_PRIVATE_LIBGCC | |
24 | default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS) | |
25 | help | |
26 | This option allows you to use the built-in libgcc implementation | |
27 | of U-Boot instead of the one provided by the compiler. | |
28 | If unsure, say N. | |
29 | ||
30 | config 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 | ||
38 | config 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 | ||
48 | config PANIC_HANG | |
49 | bool "Do not reset the system on fatal error" | |
50 | help | |
51 | Define this option to stop the system in case of a fatal error, | |
52 | so that you have to reset it manually. This is probably NOT a good | |
53 | idea for an embedded system where you want the system to reboot | |
54 | automatically as fast as possible, but it may be useful during | |
55 | development since you can try to debug the conditions that lead to | |
56 | the situation. | |
57 | ||
58 | config REGEX | |
59 | bool "Enable regular expression support" | |
60 | default y if NET | |
61 | help | |
62 | If this variable is defined, U-Boot is linked against the | |
63 | SLRE (Super Light Regular Expression) library, which adds | |
64 | regex support to some commands, for example "env grep" and | |
65 | "setexpr". | |
66 | ||
67 | config LIB_RAND | |
68 | bool "Pseudo-random library support " | |
69 | help | |
70 | This library provides pseudo-random number generator functions. | |
71 | ||
72 | config SPL_TINY_MEMSET | |
73 | bool "Use a very small memset() in SPL" | |
74 | help | |
75 | The faster memset() is the arch-specific one (if available) enabled | |
76 | by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get | |
77 | better performance by writing a word at a time. But in very | |
78 | size-constrained envrionments even this may be too big. Enable this | |
79 | option to reduce code size slightly at the cost of some speed. | |
80 | ||
81 | config TPL_TINY_MEMSET | |
82 | bool "Use a very small memset() in TPL" | |
83 | help | |
84 | The faster memset() is the arch-specific one (if available) enabled | |
85 | by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get | |
86 | better performance by writing a word at a time. But in very | |
87 | size-constrained envrionments even this may be too big. Enable this | |
88 | option to reduce code size slightly at the cost of some speed. | |
89 | ||
90 | config RBTREE | |
91 | bool | |
92 | ||
93 | config BITREVERSE | |
94 | bool "Bit reverse library from Linux" | |
95 | ||
96 | source lib/dhry/Kconfig | |
97 | ||
98 | menu "Security support" | |
99 | ||
100 | config AES | |
101 | bool "Support the AES algorithm" | |
102 | help | |
103 | This provides a means to encrypt and decrypt data using the AES | |
104 | (Advanced Encryption Standard). This algorithm uses a symetric key | |
105 | and is widely used as a streaming cipher. Different key lengths are | |
106 | supported by the algorithm but only a 128-bit key is supported at | |
107 | present. | |
108 | ||
109 | source lib/rsa/Kconfig | |
110 | ||
111 | config TPM | |
112 | bool "Trusted Platform Module (TPM) Support" | |
113 | depends on DM | |
114 | help | |
115 | This enables support for TPMs which can be used to provide security | |
116 | features for your board. The TPM can be connected via LPC or I2C | |
117 | and a sandbox TPM is provided for testing purposes. Use the 'tpm' | |
118 | command to interactive the TPM. Driver model support is provided | |
119 | for the low-level TPM interface, but only one TPM is supported at | |
120 | a time by the TPM library. | |
121 | ||
122 | endmenu | |
123 | ||
124 | menu "Hashing Support" | |
125 | ||
126 | config SHA1 | |
127 | bool "Enable SHA1 support" | |
128 | help | |
129 | This option enables support of hashing using SHA1 algorithm. | |
130 | The hash is calculated in software. | |
131 | The SHA1 algorithm produces a 160-bit (20-byte) hash value | |
132 | (digest). | |
133 | ||
134 | config SHA256 | |
135 | bool "Enable SHA256 support" | |
136 | help | |
137 | This option enables support of hashing using SHA256 algorithm. | |
138 | The hash is calculated in software. | |
139 | The SHA256 algorithm produces a 256-bit (32-byte) hash value | |
140 | (digest). | |
141 | ||
142 | config SHA_HW_ACCEL | |
143 | bool "Enable hashing using hardware" | |
144 | help | |
145 | This option enables hardware acceleration | |
146 | for SHA1/SHA256 hashing. | |
147 | This affects the 'hash' command and also the | |
148 | hash_lookup_algo() function. | |
149 | ||
150 | config SHA_PROG_HW_ACCEL | |
151 | bool "Enable Progressive hashing support using hardware" | |
152 | depends on SHA_HW_ACCEL | |
153 | help | |
154 | This option enables hardware-acceleration for | |
155 | SHA1/SHA256 progressive hashing. | |
156 | Data can be streamed in a block at a time and the hashing | |
157 | is performed in hardware. | |
158 | ||
159 | config MD5 | |
160 | bool | |
161 | ||
162 | config CRC32C | |
163 | bool | |
164 | ||
165 | endmenu | |
166 | ||
167 | menu "Compression Support" | |
168 | ||
169 | config LZ4 | |
170 | bool "Enable LZ4 decompression support" | |
171 | help | |
172 | If this option is set, support for LZ4 compressed images | |
173 | is included. The LZ4 algorithm can run in-place as long as the | |
174 | compressed image is loaded to the end of the output buffer, and | |
175 | trades lower compression ratios for much faster decompression. | |
176 | ||
177 | NOTE: This implements the release version of the LZ4 frame | |
178 | format as generated by default by the 'lz4' command line tool. | |
179 | This is not the same as the outdated, less efficient legacy | |
180 | frame format currently (2015) implemented in the Linux kernel | |
181 | (generated by 'lz4 -l'). The two formats are incompatible. | |
182 | ||
183 | config LZMA | |
184 | bool "Enable LZMA decompression support" | |
185 | help | |
186 | This enables support for LZMA (Lempel-Ziv-Markov chain algorithm), | |
187 | a dictionary compression algorithm that provides a high compression | |
188 | ratio and fairly fast decompression speed. See also | |
189 | CONFIG_CMD_LZMADEC which provides a decode command. | |
190 | ||
191 | config LZO | |
192 | bool "Enable LZO decompression support" | |
193 | help | |
194 | This enables support for LZO compression algorithm.r | |
195 | ||
196 | config SPL_LZO | |
197 | bool "Enable LZO decompression support in SPL" | |
198 | help | |
199 | This enables support for LZO compression algorithm in the SPL. | |
200 | ||
201 | config SPL_GZIP | |
202 | bool "Enable gzip decompression support for SPL build" | |
203 | select SPL_ZLIB | |
204 | help | |
205 | This enables support for GZIP compression altorithm for SPL boot. | |
206 | ||
207 | config SPL_ZLIB | |
208 | bool | |
209 | help | |
210 | This enables compression lib for SPL boot. | |
211 | ||
212 | endmenu | |
213 | ||
214 | config ERRNO_STR | |
215 | bool "Enable function for getting errno-related string message" | |
216 | help | |
217 | The function errno_str(int errno), returns a pointer to the errno | |
218 | corresponding text message: | |
219 | - if errno is null or positive number - a pointer to "Success" message | |
220 | - if errno is negative - a pointer to errno related message | |
221 | ||
222 | config OF_LIBFDT | |
223 | bool "Enable the FDT library" | |
224 | default y if OF_CONTROL | |
225 | help | |
226 | This enables the FDT library (libfdt). It provides functions for | |
227 | accessing binary device tree images in memory, such as adding and | |
228 | removing nodes and properties, scanning through the tree and finding | |
229 | particular compatible nodes. The library operates on a flattened | |
230 | version of the device tree. | |
231 | ||
232 | config OF_LIBFDT_OVERLAY | |
233 | bool "Enable the FDT library overlay support" | |
234 | help | |
235 | This enables the FDT library (libfdt) overlay support. | |
236 | ||
237 | config SPL_OF_LIBFDT | |
238 | bool "Enable the FDT library for SPL" | |
239 | default y if SPL_OF_CONTROL | |
240 | help | |
241 | This enables the FDT library (libfdt). It provides functions for | |
242 | accessing binary device tree images in memory, such as adding and | |
243 | removing nodes and properties, scanning through the tree and finding | |
244 | particular compatible nodes. The library operates on a flattened | |
245 | version of the device tree. | |
246 | ||
247 | config FDT_FIXUP_PARTITIONS | |
248 | bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" | |
249 | depends on OF_LIBFDT | |
250 | default n | |
251 | help | |
252 | Allow overwriting defined partitions in the device tree blob | |
253 | using partition info defined in the 'mtdparts' environment | |
254 | variable. | |
255 | ||
256 | menu "System tables" | |
257 | depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) | |
258 | ||
259 | config GENERATE_SMBIOS_TABLE | |
260 | bool "Generate an SMBIOS (System Management BIOS) table" | |
261 | default y | |
262 | depends on X86 || EFI_LOADER | |
263 | help | |
264 | The System Management BIOS (SMBIOS) specification addresses how | |
265 | motherboard and system vendors present management information about | |
266 | their products in a standard format by extending the BIOS interface | |
267 | on Intel architecture systems. | |
268 | ||
269 | Check http://www.dmtf.org/standards/smbios for details. | |
270 | ||
271 | config SMBIOS_MANUFACTURER | |
272 | string "SMBIOS Manufacturer" | |
273 | depends on GENERATE_SMBIOS_TABLE | |
274 | default SYS_VENDOR | |
275 | help | |
276 | The board manufacturer to store in SMBIOS structures. | |
277 | Change this to override the default one (CONFIG_SYS_VENDOR). | |
278 | ||
279 | config SMBIOS_PRODUCT_NAME | |
280 | string "SMBIOS Product Name" | |
281 | depends on GENERATE_SMBIOS_TABLE | |
282 | default SYS_BOARD | |
283 | help | |
284 | The product name to store in SMBIOS structures. | |
285 | Change this to override the default one (CONFIG_SYS_BOARD). | |
286 | ||
287 | endmenu | |
288 | ||
289 | source lib/efi/Kconfig | |
290 | source lib/efi_loader/Kconfig | |
291 | ||
292 | endmenu |