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 64source lib/dhry/Kconfig 65 66source lib/rsa/Kconfig 67 68config TPM 69 bool "Trusted Platform Module (TPM) Support" 70 depends on DM 71 help 72 This enables support for TPMs which can be used to provide security 73 features for your board. The TPM can be connected via LPC or I2C 74 and a sandbox TPM is provided for testing purposes. Use the 'tpm' 75 command to interactive the TPM. Driver model support is provided 76 for the low-level TPM interface, but only one TPM is supported at 77 a time by the TPM library. 78 79menu "Hashing Support" 80 81config SHA1 82 bool "Enable SHA1 support" 83 help 84 This option enables support of hashing using SHA1 algorithm. 85 The hash is calculated in software. 86 The SHA1 algorithm produces a 160-bit (20-byte) hash value 87 (digest). 88 89config SHA256 90 bool "Enable SHA256 support" 91 help 92 This option enables support of hashing using SHA256 algorithm. 93 The hash is calculated in software. 94 The SHA256 algorithm produces a 256-bit (32-byte) hash value 95 (digest). 96 97config SHA_HW_ACCEL 98 bool "Enable hashing using hardware" 99 help 100 This option enables hardware acceleration 101 for SHA1/SHA256 hashing. 102 This affects the 'hash' command and also the 103 hash_lookup_algo() function. 104 105config SHA_PROG_HW_ACCEL 106 bool "Enable Progressive hashing support using hardware" 107 depends on SHA_HW_ACCEL 108 help 109 This option enables hardware-acceleration for 110 SHA1/SHA256 progressive hashing. 111 Data can be streamed in a block at a time and the hashing 112 is performed in hardware. 113 114config MD5 115 bool 116 117endmenu 118 119menu "Compression Support" 120 121config LZ4 122 bool "Enable LZ4 decompression support" 123 help 124 If this option is set, support for LZ4 compressed images 125 is included. The LZ4 algorithm can run in-place as long as the 126 compressed image is loaded to the end of the output buffer, and 127 trades lower compression ratios for much faster decompression. 128 129 NOTE: This implements the release version of the LZ4 frame 130 format as generated by default by the 'lz4' command line tool. 131 This is not the same as the outdated, less efficient legacy 132 frame format currently (2015) implemented in the Linux kernel 133 (generated by 'lz4 -l'). The two formats are incompatible. 134 135endmenu 136 137config ERRNO_STR 138 bool "Enable function for getting errno-related string message" 139 help 140 The function errno_str(int errno), returns a pointer to the errno 141 corresponding text message: 142 - if errno is null or positive number - a pointer to "Success" message 143 - if errno is negative - a pointer to errno related message 144 145config OF_LIBFDT 146 bool "Enable the FDT library" 147 default y if OF_CONTROL 148 help 149 This enables the FDT library (libfdt). It provides functions for 150 accessing binary device tree images in memory, such as adding and 151 removing notes and properties, scanning through the tree and finding 152 particular compatible nodes. The library operates on a flattened 153 version of the device tree. 154 155config OF_LIBFDT_OVERLAY 156 bool "Enable the FDT library overlay support" 157 help 158 This enables the FDT library (libfdt) overlay support. 159 160config SPL_OF_LIBFDT 161 bool "Enable the FDT library for SPL" 162 default y if SPL_OF_CONTROL 163 help 164 This enables the FDT library (libfdt). It provides functions for 165 accessing binary device tree images in memory, such as adding and 166 removing notes and properties, scanning through the tree and finding 167 particular compatible nodes. The library operates on a flattened 168 version of the device tree. 169 170config FDT_FIXUP_PARTITIONS 171 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'" 172 depends on OF_LIBFDT 173 default n 174 help 175 Allow overwriting defined partitions in the device tree blob 176 using partition info defined in the 'mtdparts' environment 177 variable. 178 179menu "System tables" 180 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER) 181 182config GENERATE_SMBIOS_TABLE 183 bool "Generate an SMBIOS (System Management BIOS) table" 184 default y 185 depends on X86 || EFI_LOADER 186 help 187 The System Management BIOS (SMBIOS) specification addresses how 188 motherboard and system vendors present management information about 189 their products in a standard format by extending the BIOS interface 190 on Intel architecture systems. 191 192 Check http://www.dmtf.org/standards/smbios for details. 193 194config SMBIOS_MANUFACTURER 195 string "SMBIOS Manufacturer" 196 depends on GENERATE_SMBIOS_TABLE 197 default SYS_VENDOR 198 help 199 The board manufacturer to store in SMBIOS structures. 200 Change this to override the default one (CONFIG_SYS_VENDOR). 201 202config SMBIOS_PRODUCT_NAME 203 string "SMBIOS Product Name" 204 depends on GENERATE_SMBIOS_TABLE 205 default SYS_BOARD 206 help 207 The product name to store in SMBIOS structures. 208 Change this to override the default one (CONFIG_SYS_BOARD). 209 210endmenu 211 212source lib/efi/Kconfig 213source lib/efi_loader/Kconfig 214 215endmenu 216