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 SYS_STACK_SIZE 39 hex 40 default 0x200000 41 help 42 The system stack size. 43 44config USE_TINY_PRINTF 45 bool "Enable tiny printf() version" 46 help 47 This option enables a tiny, stripped down printf version. 48 This should only be used in space limited environments, 49 like SPL versions with hard memory limits. This version 50 reduces the code size by about 2.5KiB on armv7. 51 52 The supported format specifiers are %c, %s, %u/%d and %x. 53 54config PANIC_HANG 55 bool "Do not reset the system on fatal error" 56 help 57 Define this option to stop the system in case of a fatal error, 58 so that you have to reset it manually. This is probably NOT a good 59 idea for an embedded system where you want the system to reboot 60 automatically as fast as possible, but it may be useful during 61 development since you can try to debug the conditions that lead to 62 the situation. 63 64config REGEX 65 bool "Enable regular expression support" 66 default y if NET 67 help 68 If this variable is defined, U-Boot is linked against the 69 SLRE (Super Light Regular Expression) library, which adds 70 regex support to some commands, for example "env grep" and 71 "setexpr". 72 73config LIB_RAND 74 bool "Pseudo-random library support " 75 help 76 This library provides pseudo-random number generator functions. 77 78config SPL_TINY_MEMSET 79 bool "Use a very small memset() in SPL" 80 help 81 The faster memset() is the arch-specific one (if available) enabled 82 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get 83 better performance by writing a word at a time. But in very 84 size-constrained envrionments even this may be too big. Enable this 85 option to reduce code size slightly at the cost of some speed. 86 87config TPL_TINY_MEMSET 88 bool "Use a very small memset() in TPL" 89 help 90 The faster memset() is the arch-specific one (if available) enabled 91 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get 92 better performance by writing a word at a time. But in very 93 size-constrained envrionments even this may be too big. Enable this 94 option to reduce code size slightly at the cost of some speed. 95 96config RBTREE 97 bool 98 99config BITREVERSE 100 bool 101 102config SYSMEM 103 bool "System memory management" 104 default y 105 help 106 This enables support for system permanent memory management. 107 108config BIDRAM 109 bool "GD board bi_dram[] memory management" 110 default y 111 help 112 This enables support for GD board bi_dram[] memory management. 113 114source lib/dhry/Kconfig 115 116menu "Security support" 117 118config AES 119 bool "Support the AES algorithm" 120 help 121 This provides a means to encrypt and decrypt data using the AES 122 (Advanced Encryption Standard). This algorithm uses a symetric key 123 and is widely used as a streaming cipher. Different key lengths are 124 supported by the algorithm but only a 128-bit key is supported at 125 present. 126 127source lib/rsa/Kconfig 128 129config TPM 130 bool "Trusted Platform Module (TPM) Support" 131 depends on DM 132 help 133 This enables support for TPMs which can be used to provide security 134 features for your board. The TPM can be connected via LPC or I2C 135 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 136 command to interactive the TPM. Driver model support is provided 137 for the low-level TPM interface, but only one TPM is supported at 138 a time by the TPM library. 139 140endmenu 141 142menu "Hashing Support" 143 144config SHA1 145 bool "Enable SHA1 support" 146 help 147 This option enables support of hashing using SHA1 algorithm. 148 The hash is calculated in software. 149 The SHA1 algorithm produces a 160-bit (20-byte) hash value 150 (digest). 151 152config SHA256 153 bool "Enable SHA256 support" 154 help 155 This option enables support of hashing using SHA256 algorithm. 156 The hash is calculated in software. 157 The SHA256 algorithm produces a 256-bit (32-byte) hash value 158 (digest). 159 160config SHA_HW_ACCEL 161 bool "Enable hashing using hardware" 162 help 163 This option enables hardware acceleration 164 for SHA1/SHA256 hashing. 165 This affects the 'hash' command and also the 166 hash_lookup_algo() function. 167 168config SHA_PROG_HW_ACCEL 169 bool "Enable Progressive hashing support using hardware" 170 depends on SHA_HW_ACCEL 171 help 172 This option enables hardware-acceleration for 173 SHA1/SHA256 progressive hashing. 174 Data can be streamed in a block at a time and the hashing 175 is performed in hardware. 176 177config MD5 178 bool 179 180config CRC32C 181 bool 182 183endmenu 184 185menu "Compression Support" 186 187config LZ4 188 bool "Enable LZ4 decompression support" 189 help 190 If this option is set, support for LZ4 compressed images 191 is included. The LZ4 algorithm can run in-place as long as the 192 compressed image is loaded to the end of the output buffer, and 193 trades lower compression ratios for much faster decompression. 194 195 NOTE: This implements the release version of the LZ4 frame 196 format as generated by default by the 'lz4' command line tool. 197 This is not the same as the outdated, less efficient legacy 198 frame format currently (2015) implemented in the Linux kernel 199 (generated by 'lz4 -l'). The two formats are incompatible. 200 201config LZMA 202 bool "Enable LZMA decompression support" 203 help 204 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm), 205 a dictionary compression algorithm that provides a high compression 206 ratio and fairly fast decompression speed. See also 207 CONFIG_CMD_LZMADEC which provides a decode command. 208 209config LZO 210 bool "Enable LZO decompression support" 211 help 212 This enables support for LZO compression algorithm.r 213 214config SPL_LZO 215 bool "Enable LZO decompression support in SPL" 216 help 217 This enables support for LZO compression algorithm in the SPL. 218 219config SPL_GZIP 220 bool "Enable gzip decompression support for SPL build" 221 select SPL_ZLIB 222 help 223 This enables support for GZIP compression altorithm for SPL boot. 224 225config SPL_ZLIB 226 bool 227 help 228 This enables compression lib for SPL boot. 229 230endmenu 231 232config ERRNO_STR 233 bool "Enable function for getting errno-related string message" 234 help 235 The function errno_str(int errno), returns a pointer to the errno 236 corresponding text message: 237 - if errno is null or positive number - a pointer to "Success" message 238 - if errno is negative - a pointer to errno related message 239 240config HEXDUMP 241 bool "Enable hexdump" 242 help 243 This enables functions for printing dumps of binary data. 244 245config OF_LIBFDT 246 bool "Enable the FDT library" 247 default y if OF_CONTROL 248 help 249 This enables the FDT library (libfdt). It provides functions for 250 accessing binary device tree images in memory, such as adding and 251 removing nodes and properties, scanning through the tree and finding 252 particular compatible nodes. The library operates on a flattened 253 version of the device tree. 254 255config OF_LIBFDT_OVERLAY 256 bool "Enable the FDT library overlay support" 257 help 258 This enables the FDT library (libfdt) overlay support. 259 260config SPL_OF_LIBFDT 261 bool "Enable the FDT library for SPL" 262 default y if SPL_OF_CONTROL 263 help 264 This enables the FDT library (libfdt). It provides functions for 265 accessing binary device tree images in memory, such as adding and 266 removing nodes and properties, scanning through the tree and finding 267 particular compatible nodes. The library operates on a flattened 268 version of the device tree. 269 270config TPL_OF_LIBFDT 271 bool "Enable the FDT library for TPL" 272 default y if TPL_OF_CONTROL 273 help 274 This enables the FDT library (libfdt). It provides functions for 275 accessing binary device tree images in memory, such as adding and 276 removing nodes and properties, scanning through the tree and finding 277 particular compatible nodes. The library operates on a flattened 278 version of the device tree. 279 280config FDT_FIXUP_PARTITIONS 281 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" 282 depends on OF_LIBFDT 283 default n 284 help 285 Allow overwriting defined partitions in the device tree blob 286 using partition info defined in the 'mtdparts' environment 287 variable. 288 289menu "System tables" 290 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) 291 292config GENERATE_SMBIOS_TABLE 293 bool "Generate an SMBIOS (System Management BIOS) table" 294 default y 295 depends on X86 || EFI_LOADER 296 help 297 The System Management BIOS (SMBIOS) specification addresses how 298 motherboard and system vendors present management information about 299 their products in a standard format by extending the BIOS interface 300 on Intel architecture systems. 301 302 Check http://www.dmtf.org/standards/smbios for details. 303 304config SMBIOS_MANUFACTURER 305 string "SMBIOS Manufacturer" 306 depends on GENERATE_SMBIOS_TABLE 307 default SYS_VENDOR 308 help 309 The board manufacturer to store in SMBIOS structures. 310 Change this to override the default one (CONFIG_SYS_VENDOR). 311 312config SMBIOS_PRODUCT_NAME 313 string "SMBIOS Product Name" 314 depends on GENERATE_SMBIOS_TABLE 315 default SYS_BOARD 316 help 317 The product name to store in SMBIOS structures. 318 Change this to override the default one (CONFIG_SYS_BOARD). 319 320endmenu 321 322source lib/efi/Kconfig 323source lib/efi_loader/Kconfig 324source lib/avb/libavb/Kconfig 325source lib/avb/libavb_ab/Kconfig 326source lib/avb/libavb_atx/Kconfig 327source lib/avb/libavb_user/Kconfig 328source lib/avb/rk_avb_user/Kconfig 329source lib/optee_clientApi/Kconfig 330endmenu 331