1menu "Library routines" 2 3config 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 10config 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 18config HAVE_PRIVATE_LIBGCC 19 bool 20 21config 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 30config 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 38config 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 48config 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 58config 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 67config LIB_RAND 68 bool "Pseudo-random library support " 69 help 70 This library provides pseudo-random number generator functions. 71 72config 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 81config 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 90config RBTREE 91 bool 92 93config BITREVERSE 94 bool 95 96config SYSMEM 97 bool "System memory management" 98 default y 99 help 100 This enables support for system permanent memory management. 101 102source lib/dhry/Kconfig 103 104menu "Security support" 105 106config AES 107 bool "Support the AES algorithm" 108 help 109 This provides a means to encrypt and decrypt data using the AES 110 (Advanced Encryption Standard). This algorithm uses a symetric key 111 and is widely used as a streaming cipher. Different key lengths are 112 supported by the algorithm but only a 128-bit key is supported at 113 present. 114 115source lib/rsa/Kconfig 116 117config TPM 118 bool "Trusted Platform Module (TPM) Support" 119 depends on DM 120 help 121 This enables support for TPMs which can be used to provide security 122 features for your board. The TPM can be connected via LPC or I2C 123 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 124 command to interactive the TPM. Driver model support is provided 125 for the low-level TPM interface, but only one TPM is supported at 126 a time by the TPM library. 127 128endmenu 129 130menu "Hashing Support" 131 132config SHA1 133 bool "Enable SHA1 support" 134 help 135 This option enables support of hashing using SHA1 algorithm. 136 The hash is calculated in software. 137 The SHA1 algorithm produces a 160-bit (20-byte) hash value 138 (digest). 139 140config SHA256 141 bool "Enable SHA256 support" 142 help 143 This option enables support of hashing using SHA256 algorithm. 144 The hash is calculated in software. 145 The SHA256 algorithm produces a 256-bit (32-byte) hash value 146 (digest). 147 148config SHA_HW_ACCEL 149 bool "Enable hashing using hardware" 150 help 151 This option enables hardware acceleration 152 for SHA1/SHA256 hashing. 153 This affects the 'hash' command and also the 154 hash_lookup_algo() function. 155 156config SHA_PROG_HW_ACCEL 157 bool "Enable Progressive hashing support using hardware" 158 depends on SHA_HW_ACCEL 159 help 160 This option enables hardware-acceleration for 161 SHA1/SHA256 progressive hashing. 162 Data can be streamed in a block at a time and the hashing 163 is performed in hardware. 164 165config MD5 166 bool 167 168config CRC32C 169 bool 170 171endmenu 172 173menu "Compression Support" 174 175config LZ4 176 bool "Enable LZ4 decompression support" 177 help 178 If this option is set, support for LZ4 compressed images 179 is included. The LZ4 algorithm can run in-place as long as the 180 compressed image is loaded to the end of the output buffer, and 181 trades lower compression ratios for much faster decompression. 182 183 NOTE: This implements the release version of the LZ4 frame 184 format as generated by default by the 'lz4' command line tool. 185 This is not the same as the outdated, less efficient legacy 186 frame format currently (2015) implemented in the Linux kernel 187 (generated by 'lz4 -l'). The two formats are incompatible. 188 189config LZMA 190 bool "Enable LZMA decompression support" 191 help 192 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm), 193 a dictionary compression algorithm that provides a high compression 194 ratio and fairly fast decompression speed. See also 195 CONFIG_CMD_LZMADEC which provides a decode command. 196 197config LZO 198 bool "Enable LZO decompression support" 199 help 200 This enables support for LZO compression algorithm.r 201 202config SPL_LZO 203 bool "Enable LZO decompression support in SPL" 204 help 205 This enables support for LZO compression algorithm in the SPL. 206 207config SPL_GZIP 208 bool "Enable gzip decompression support for SPL build" 209 select SPL_ZLIB 210 help 211 This enables support for GZIP compression altorithm for SPL boot. 212 213config SPL_ZLIB 214 bool 215 help 216 This enables compression lib for SPL boot. 217 218endmenu 219 220config ERRNO_STR 221 bool "Enable function for getting errno-related string message" 222 help 223 The function errno_str(int errno), returns a pointer to the errno 224 corresponding text message: 225 - if errno is null or positive number - a pointer to "Success" message 226 - if errno is negative - a pointer to errno related message 227 228config OF_LIBFDT 229 bool "Enable the FDT library" 230 default y if OF_CONTROL 231 help 232 This enables the FDT library (libfdt). It provides functions for 233 accessing binary device tree images in memory, such as adding and 234 removing nodes and properties, scanning through the tree and finding 235 particular compatible nodes. The library operates on a flattened 236 version of the device tree. 237 238config OF_LIBFDT_OVERLAY 239 bool "Enable the FDT library overlay support" 240 help 241 This enables the FDT library (libfdt) overlay support. 242 243config SPL_OF_LIBFDT 244 bool "Enable the FDT library for SPL" 245 default y if SPL_OF_CONTROL 246 help 247 This enables the FDT library (libfdt). It provides functions for 248 accessing binary device tree images in memory, such as adding and 249 removing nodes and properties, scanning through the tree and finding 250 particular compatible nodes. The library operates on a flattened 251 version of the device tree. 252 253config TPL_OF_LIBFDT 254 bool "Enable the FDT library for TPL" 255 default y if TPL_OF_CONTROL 256 help 257 This enables the FDT library (libfdt). It provides functions for 258 accessing binary device tree images in memory, such as adding and 259 removing nodes and properties, scanning through the tree and finding 260 particular compatible nodes. The library operates on a flattened 261 version of the device tree. 262 263config FDT_FIXUP_PARTITIONS 264 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" 265 depends on OF_LIBFDT 266 default n 267 help 268 Allow overwriting defined partitions in the device tree blob 269 using partition info defined in the 'mtdparts' environment 270 variable. 271 272menu "System tables" 273 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) 274 275config GENERATE_SMBIOS_TABLE 276 bool "Generate an SMBIOS (System Management BIOS) table" 277 default y 278 depends on X86 || EFI_LOADER 279 help 280 The System Management BIOS (SMBIOS) specification addresses how 281 motherboard and system vendors present management information about 282 their products in a standard format by extending the BIOS interface 283 on Intel architecture systems. 284 285 Check http://www.dmtf.org/standards/smbios for details. 286 287config SMBIOS_MANUFACTURER 288 string "SMBIOS Manufacturer" 289 depends on GENERATE_SMBIOS_TABLE 290 default SYS_VENDOR 291 help 292 The board manufacturer to store in SMBIOS structures. 293 Change this to override the default one (CONFIG_SYS_VENDOR). 294 295config SMBIOS_PRODUCT_NAME 296 string "SMBIOS Product Name" 297 depends on GENERATE_SMBIOS_TABLE 298 default SYS_BOARD 299 help 300 The product name to store in SMBIOS structures. 301 Change this to override the default one (CONFIG_SYS_BOARD). 302 303endmenu 304 305source lib/efi/Kconfig 306source lib/efi_loader/Kconfig 307source lib/avb/libavb/Kconfig 308source lib/avb/libavb_ab/Kconfig 309source lib/avb/libavb_atx/Kconfig 310source lib/avb/libavb_user/Kconfig 311source lib/avb/rk_avb_user/Kconfig 312source lib/optee_clientApi/Kconfig 313 314endmenu 315