lib/Kconfig

   1 menu "Library routines"
   2
   3 config 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
  11 config HAVE_PRIVATE_LIBGCC
  12         bool
  13
  14 config 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
  23 config 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
  31 config 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
  41 config 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
  50 config LIB_RAND
  51         bool "Pseudo-random library support "
  52         help
  53           This library provides pseudo-random number generator functions.
  54
  55 source lib/dhry/Kconfig
  56
  57 source lib/rsa/Kconfig
  58
  59 config 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
  70 menu "Hashing Support"
  71
  72 config 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
  80 config 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
  88 config 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
  96 config 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
 105 config MD5
 106         bool
 107
 108 endmenu
 109
 110 menu "Compression Support"
 111
 112 config 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
 126 endmenu
 127
 128 config 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
 136 config 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
 146 config OF_LIBFDT_OVERLAY
 147         bool "Enable the FDT library overlay support"
 148         help
 149           This enables the FDT library (libfdt) overlay support.
 150
 151 config 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
 161 config 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
 170 menu "System tables"
 171         depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
 172
 173 config 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
 185 config 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
 193 config 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
 201 endmenu
 202
 203 source lib/efi/Kconfig
 204 source lib/efi_loader/Kconfig
 205
 206 endmenu