1menu "Library routines" 2 3config CC_OPTIMIZE_LIBS_FOR_SPEED 4 bool "Optimize libraries for speed" 5 help 6 Enabling this option will pass "-O2" to gcc when compiling 7 under "lib" directory. 8 9 If unsure, say N. 10 11config HAVE_PRIVATE_LIBGCC 12 bool 13 14config USE_PRIVATE_LIBGCC 15 bool "Use private libgcc" 16 depends on HAVE_PRIVATE_LIBGCC 17 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS) 18 help 19 This option allows you to use the built-in libgcc implementation 20 of U-Boot instead of the one provided by the compiler. 21 If unsure, say N. 22 23config SYS_HZ 24 int 25 default 1000 26 help 27 The frequency of the timer returned by get_timer(). 28 get_timer() must operate in milliseconds and this option must be 29 set to 1000. 30 31config USE_TINY_PRINTF 32 bool "Enable tiny printf() version" 33 help 34 This option enables a tiny, stripped down printf version. 35 This should only be used in space limited environments, 36 like SPL versions with hard memory limits. This version 37 reduces the code size by about 2.5KiB on armv7. 38 39 The supported format specifiers are %c, %s, %u/%d and %x. 40 41config REGEX 42 bool "Enable regular expression support" 43 default y if NET 44 help 45 If this variable is defined, U-Boot is linked against the 46 SLRE (Super Light Regular Expression) library, which adds 47 regex support to some commands, for example "env grep" and 48 "setexpr". 49 50config LIB_RAND 51 bool "Pseudo-random library support " 52 help 53 This library provides pseudo-random number generator functions. 54 55config SPL_TINY_MEMSET 56 bool "Use a very small memset() in SPL" 57 help 58 The faster memset() is the arch-specific one (if available) enabled 59 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get 60 better performance by writing a word at a time. But in very 61 size-constrained envrionments even this may be too big. Enable this 62 option to reduce code size slightly at the cost of some speed. 63 64config RBTREE 65 bool 66 67source lib/dhry/Kconfig 68 69source lib/rsa/Kconfig 70 71config TPM 72 bool "Trusted Platform Module (TPM) Support" 73 depends on DM 74 help 75 This enables support for TPMs which can be used to provide security 76 features for your board. The TPM can be connected via LPC or I2C 77 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 78 command to interactive the TPM. Driver model support is provided 79 for the low-level TPM interface, but only one TPM is supported at 80 a time by the TPM library. 81 82menu "Hashing Support" 83 84config SHA1 85 bool "Enable SHA1 support" 86 help 87 This option enables support of hashing using SHA1 algorithm. 88 The hash is calculated in software. 89 The SHA1 algorithm produces a 160-bit (20-byte) hash value 90 (digest). 91 92config SHA256 93 bool "Enable SHA256 support" 94 help 95 This option enables support of hashing using SHA256 algorithm. 96 The hash is calculated in software. 97 The SHA256 algorithm produces a 256-bit (32-byte) hash value 98 (digest). 99 100config SHA_HW_ACCEL 101 bool "Enable hashing using hardware" 102 help 103 This option enables hardware acceleration 104 for SHA1/SHA256 hashing. 105 This affects the 'hash' command and also the 106 hash_lookup_algo() function. 107 108config SHA_PROG_HW_ACCEL 109 bool "Enable Progressive hashing support using hardware" 110 depends on SHA_HW_ACCEL 111 help 112 This option enables hardware-acceleration for 113 SHA1/SHA256 progressive hashing. 114 Data can be streamed in a block at a time and the hashing 115 is performed in hardware. 116 117config MD5 118 bool 119 120endmenu 121 122menu "Compression Support" 123 124config LZ4 125 bool "Enable LZ4 decompression support" 126 help 127 If this option is set, support for LZ4 compressed images 128 is included. The LZ4 algorithm can run in-place as long as the 129 compressed image is loaded to the end of the output buffer, and 130 trades lower compression ratios for much faster decompression. 131 132 NOTE: This implements the release version of the LZ4 frame 133 format as generated by default by the 'lz4' command line tool. 134 This is not the same as the outdated, less efficient legacy 135 frame format currently (2015) implemented in the Linux kernel 136 (generated by 'lz4 -l'). The two formats are incompatible. 137 138endmenu 139 140config ERRNO_STR 141 bool "Enable function for getting errno-related string message" 142 help 143 The function errno_str(int errno), returns a pointer to the errno 144 corresponding text message: 145 - if errno is null or positive number - a pointer to "Success" message 146 - if errno is negative - a pointer to errno related message 147 148config OF_LIBFDT 149 bool "Enable the FDT library" 150 default y if OF_CONTROL 151 help 152 This enables the FDT library (libfdt). It provides functions for 153 accessing binary device tree images in memory, such as adding and 154 removing notes and properties, scanning through the tree and finding 155 particular compatible nodes. The library operates on a flattened 156 version of the device tree. 157 158config OF_LIBFDT_OVERLAY 159 bool "Enable the FDT library overlay support" 160 help 161 This enables the FDT library (libfdt) overlay support. 162 163config SPL_OF_LIBFDT 164 bool "Enable the FDT library for SPL" 165 default y if SPL_OF_CONTROL 166 help 167 This enables the FDT library (libfdt). It provides functions for 168 accessing binary device tree images in memory, such as adding and 169 removing notes and properties, scanning through the tree and finding 170 particular compatible nodes. The library operates on a flattened 171 version of the device tree. 172 173config FDT_FIXUP_PARTITIONS 174 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" 175 depends on OF_LIBFDT 176 default n 177 help 178 Allow overwriting defined partitions in the device tree blob 179 using partition info defined in the 'mtdparts' environment 180 variable. 181 182menu "System tables" 183 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) 184 185config GENERATE_SMBIOS_TABLE 186 bool "Generate an SMBIOS (System Management BIOS) table" 187 default y 188 depends on X86 || EFI_LOADER 189 help 190 The System Management BIOS (SMBIOS) specification addresses how 191 motherboard and system vendors present management information about 192 their products in a standard format by extending the BIOS interface 193 on Intel architecture systems. 194 195 Check http://www.dmtf.org/standards/smbios for details. 196 197config SMBIOS_MANUFACTURER 198 string "SMBIOS Manufacturer" 199 depends on GENERATE_SMBIOS_TABLE 200 default SYS_VENDOR 201 help 202 The board manufacturer to store in SMBIOS structures. 203 Change this to override the default one (CONFIG_SYS_VENDOR). 204 205config SMBIOS_PRODUCT_NAME 206 string "SMBIOS Product Name" 207 depends on GENERATE_SMBIOS_TABLE 208 default SYS_BOARD 209 help 210 The product name to store in SMBIOS structures. 211 Change this to override the default one (CONFIG_SYS_BOARD). 212 213endmenu 214 215source lib/efi/Kconfig 216source lib/efi_loader/Kconfig 217 218endmenu 219