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 55source lib/dhry/Kconfig 56 57source lib/rsa/Kconfig 58 59config TPM 60 bool "Trusted Platform Module (TPM) Support" 61 depends on DM 62 help 63 This enables support for TPMs which can be used to provide security 64 features for your board. The TPM can be connected via LPC or I2C 65 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 66 command to interactive the TPM. Driver model support is provided 67 for the low-level TPM interface, but only one TPM is supported at 68 a time by the TPM library. 69 70menu "Hashing Support" 71 72config SHA1 73 bool "Enable SHA1 support" 74 help 75 This option enables support of hashing using SHA1 algorithm. 76 The hash is calculated in software. 77 The SHA1 algorithm produces a 160-bit (20-byte) hash value 78 (digest). 79 80config SHA256 81 bool "Enable SHA256 support" 82 help 83 This option enables support of hashing using SHA256 algorithm. 84 The hash is calculated in software. 85 The SHA256 algorithm produces a 256-bit (32-byte) hash value 86 (digest). 87 88config SHA_HW_ACCEL 89 bool "Enable hashing using hardware" 90 help 91 This option enables hardware acceleration 92 for SHA1/SHA256 hashing. 93 This affects the 'hash' command and also the 94 hash_lookup_algo() function. 95 96config SHA_PROG_HW_ACCEL 97 bool "Enable Progressive hashing support using hardware" 98 depends on SHA_HW_ACCEL 99 help 100 This option enables hardware-acceleration for 101 SHA1/SHA256 progressive hashing. 102 Data can be streamed in a block at a time and the hashing 103 is performed in hardware. 104 105config MD5 106 bool 107 108endmenu 109 110menu "Compression Support" 111 112config LZ4 113 bool "Enable LZ4 decompression support" 114 help 115 If this option is set, support for LZ4 compressed images 116 is included. The LZ4 algorithm can run in-place as long as the 117 compressed image is loaded to the end of the output buffer, and 118 trades lower compression ratios for much faster decompression. 119 120 NOTE: This implements the release version of the LZ4 frame 121 format as generated by default by the 'lz4' command line tool. 122 This is not the same as the outdated, less efficient legacy 123 frame format currently (2015) implemented in the Linux kernel 124 (generated by 'lz4 -l'). The two formats are incompatible. 125 126endmenu 127 128config ERRNO_STR 129 bool "Enable function for getting errno-related string message" 130 help 131 The function errno_str(int errno), returns a pointer to the errno 132 corresponding text message: 133 - if errno is null or positive number - a pointer to "Success" message 134 - if errno is negative - a pointer to errno related message 135 136config OF_LIBFDT 137 bool "Enable the FDT library" 138 default y if OF_CONTROL 139 help 140 This enables the FDT library (libfdt). It provides functions for 141 accessing binary device tree images in memory, such as adding and 142 removing notes and properties, scanning through the tree and finding 143 particular compatible nodes. The library operates on a flattened 144 version of the device tree. 145 146config OF_LIBFDT_OVERLAY 147 bool "Enable the FDT library overlay support" 148 help 149 This enables the FDT library (libfdt) overlay support. 150 151config SPL_OF_LIBFDT 152 bool "Enable the FDT library for SPL" 153 default y if SPL_OF_CONTROL 154 help 155 This enables the FDT library (libfdt). It provides functions for 156 accessing binary device tree images in memory, such as adding and 157 removing notes and properties, scanning through the tree and finding 158 particular compatible nodes. The library operates on a flattened 159 version of the device tree. 160 161config FDT_FIXUP_PARTITIONS 162 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" 163 depends on OF_LIBFDT 164 default n 165 help 166 Allow overwriting defined partitions in the device tree blob 167 using partition info defined in the 'mtdparts' environment 168 variable. 169 170menu "System tables" 171 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) 172 173config GENERATE_SMBIOS_TABLE 174 bool "Generate an SMBIOS (System Management BIOS) table" 175 default y 176 depends on X86 || EFI_LOADER 177 help 178 The System Management BIOS (SMBIOS) specification addresses how 179 motherboard and system vendors present management information about 180 their products in a standard format by extending the BIOS interface 181 on Intel architecture systems. 182 183 Check http://www.dmtf.org/standards/smbios for details. 184 185config SMBIOS_MANUFACTURER 186 string "SMBIOS Manufacturer" 187 depends on GENERATE_SMBIOS_TABLE 188 default SYS_VENDOR 189 help 190 The board manufacturer to store in SMBIOS structures. 191 Change this to override the default one (CONFIG_SYS_VENDOR). 192 193config SMBIOS_PRODUCT_NAME 194 string "SMBIOS Product Name" 195 depends on GENERATE_SMBIOS_TABLE 196 default SYS_BOARD 197 help 198 The product name to store in SMBIOS structures. 199 Change this to override the default one (CONFIG_SYS_BOARD). 200 201endmenu 202 203source lib/efi/Kconfig 204source lib/efi_loader/Kconfig 205 206endmenu 207