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 OF_LIBFDT 241 bool "Enable the FDT library" 242 default y if OF_CONTROL 243 help 244 This enables the FDT library (libfdt). It provides functions for 245 accessing binary device tree images in memory, such as adding and 246 removing nodes and properties, scanning through the tree and finding 247 particular compatible nodes. The library operates on a flattened 248 version of the device tree. 249 250config OF_LIBFDT_OVERLAY 251 bool "Enable the FDT library overlay support" 252 help 253 This enables the FDT library (libfdt) overlay support. 254 255config SPL_OF_LIBFDT 256 bool "Enable the FDT library for SPL" 257 default y if SPL_OF_CONTROL 258 help 259 This enables the FDT library (libfdt). It provides functions for 260 accessing binary device tree images in memory, such as adding and 261 removing nodes and properties, scanning through the tree and finding 262 particular compatible nodes. The library operates on a flattened 263 version of the device tree. 264 265config TPL_OF_LIBFDT 266 bool "Enable the FDT library for TPL" 267 default y if TPL_OF_CONTROL 268 help 269 This enables the FDT library (libfdt). It provides functions for 270 accessing binary device tree images in memory, such as adding and 271 removing nodes and properties, scanning through the tree and finding 272 particular compatible nodes. The library operates on a flattened 273 version of the device tree. 274 275config FDT_FIXUP_PARTITIONS 276 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" 277 depends on OF_LIBFDT 278 default n 279 help 280 Allow overwriting defined partitions in the device tree blob 281 using partition info defined in the 'mtdparts' environment 282 variable. 283 284menu "System tables" 285 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) 286 287config GENERATE_SMBIOS_TABLE 288 bool "Generate an SMBIOS (System Management BIOS) table" 289 default y 290 depends on X86 || EFI_LOADER 291 help 292 The System Management BIOS (SMBIOS) specification addresses how 293 motherboard and system vendors present management information about 294 their products in a standard format by extending the BIOS interface 295 on Intel architecture systems. 296 297 Check http://www.dmtf.org/standards/smbios for details. 298 299config SMBIOS_MANUFACTURER 300 string "SMBIOS Manufacturer" 301 depends on GENERATE_SMBIOS_TABLE 302 default SYS_VENDOR 303 help 304 The board manufacturer to store in SMBIOS structures. 305 Change this to override the default one (CONFIG_SYS_VENDOR). 306 307config SMBIOS_PRODUCT_NAME 308 string "SMBIOS Product Name" 309 depends on GENERATE_SMBIOS_TABLE 310 default SYS_BOARD 311 help 312 The product name to store in SMBIOS structures. 313 Change this to override the default one (CONFIG_SYS_BOARD). 314 315endmenu 316 317source lib/efi/Kconfig 318source lib/efi_loader/Kconfig 319source lib/avb/libavb/Kconfig 320source lib/avb/libavb_ab/Kconfig 321source lib/avb/libavb_atx/Kconfig 322source lib/avb/libavb_user/Kconfig 323source lib/avb/rk_avb_user/Kconfig 324source lib/optee_clientApi/Kconfig 325endmenu 326