menu "Library routines"
+config BCH
+ bool "Enable Software based BCH ECC"
+ help
+ Enables software based BCH ECC algorithm present in lib/bch.c
+ This is used by SoC platforms which do not have built-in ELM
+ hardware engine required for BCH ECC correction.
+
config CC_OPTIMIZE_LIBS_FOR_SPEED
bool "Optimize libraries for speed"
help
If unsure, say N.
+config DYNAMIC_CRC_TABLE
+ bool "Enable Dynamic tables for CRC"
+ help
+ Enable this option to calculate entries for CRC tables at runtime.
+ This can be helpful when reducing the size of the build image
+
config HAVE_PRIVATE_LIBGCC
bool
+config LIB_UUID
+ bool
+
config USE_PRIVATE_LIBGCC
bool "Use private libgcc"
depends on HAVE_PRIVATE_LIBGCC
+ default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
help
This option allows you to use the built-in libgcc implementation
- of U-boot instead of the one privided by the compiler.
+ of U-Boot instead of the one provided by the compiler.
If unsure, say N.
config SYS_HZ
The supported format specifiers are %c, %s, %u/%d and %x.
+config PANIC_HANG
+ bool "Do not reset the system on fatal error"
+ help
+ Define this option to stop the system in case of a fatal error,
+ so that you have to reset it manually. This is probably NOT a good
+ idea for an embedded system where you want the system to reboot
+ automatically as fast as possible, but it may be useful during
+ development since you can try to debug the conditions that lead to
+ the situation.
+
config REGEX
bool "Enable regular expression support"
+ default n if ARCH_SUNXI
default y if NET
help
If this variable is defined, U-Boot is linked against the
regex support to some commands, for example "env grep" and
"setexpr".
+choice
+ prompt "Pseudo-random library support type"
+ depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID
+ default LIB_RAND
+ help
+ Select the library to provide pseudo-random number generator
+ functions. LIB_HW_RAND supports certain hardware engines that
+ provide this functionality. If in doubt, select LIB_RAND.
+
config LIB_RAND
- bool "Pseudo-random library support "
+ bool "Pseudo-random library support"
+
+config LIB_HW_RAND
+ bool "HW Engine for random libray support"
+
+endchoice
+
+config SPL_TINY_MEMSET
+ bool "Use a very small memset() in SPL"
+ help
+ The faster memset() is the arch-specific one (if available) enabled
+ by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
+ better performance by writing a word at a time. But in very
+ size-constrained envrionments even this may be too big. Enable this
+ option to reduce code size slightly at the cost of some speed.
+
+config TPL_TINY_MEMSET
+ bool "Use a very small memset() in TPL"
help
- This library provides pseudo-random number generator functions.
+ The faster memset() is the arch-specific one (if available) enabled
+ by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
+ better performance by writing a word at a time. But in very
+ size-constrained envrionments even this may be too big. Enable this
+ option to reduce code size slightly at the cost of some speed.
+
+config RBTREE
+ bool
+
+config BITREVERSE
+ bool "Bit reverse library from Linux"
source lib/dhry/Kconfig
+menu "Security support"
+
+config AES
+ bool "Support the AES algorithm"
+ help
+ This provides a means to encrypt and decrypt data using the AES
+ (Advanced Encryption Standard). This algorithm uses a symetric key
+ and is widely used as a streaming cipher. Different key lengths are
+ supported by the algorithm but only a 128-bit key is supported at
+ present.
+
source lib/rsa/Kconfig
config TPM
for the low-level TPM interface, but only one TPM is supported at
a time by the TPM library.
+endmenu
+
menu "Hashing Support"
config SHA1
SHA1/SHA256 progressive hashing.
Data can be streamed in a block at a time and the hashing
is performed in hardware.
+
+config MD5
+ bool
+
+config CRC32C
+ bool
+
endmenu
menu "Compression Support"
frame format currently (2015) implemented in the Linux kernel
(generated by 'lz4 -l'). The two formats are incompatible.
+config LZMA
+ bool "Enable LZMA decompression support"
+ help
+ This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
+ a dictionary compression algorithm that provides a high compression
+ ratio and fairly fast decompression speed. See also
+ CONFIG_CMD_LZMADEC which provides a decode command.
+
+config LZO
+ bool "Enable LZO decompression support"
+ help
+ This enables support for LZO compression algorithm.r
+
+config SPL_LZO
+ bool "Enable LZO decompression support in SPL"
+ help
+ This enables support for LZO compression algorithm in the SPL.
+
+config SPL_GZIP
+ bool "Enable gzip decompression support for SPL build"
+ select SPL_ZLIB
+ help
+ This enables support for GZIP compression altorithm for SPL boot.
+
+config SPL_ZLIB
+ bool
+ help
+ This enables compression lib for SPL boot.
+
endmenu
config ERRNO_STR
- if errno is null or positive number - a pointer to "Success" message
- if errno is negative - a pointer to errno related message
+config OF_LIBFDT
+ bool "Enable the FDT library"
+ default y if OF_CONTROL
+ help
+ This enables the FDT library (libfdt). It provides functions for
+ accessing binary device tree images in memory, such as adding and
+ removing nodes and properties, scanning through the tree and finding
+ particular compatible nodes. The library operates on a flattened
+ version of the device tree.
+
+config OF_LIBFDT_OVERLAY
+ bool "Enable the FDT library overlay support"
+ help
+ This enables the FDT library (libfdt) overlay support.
+
+config SPL_OF_LIBFDT
+ bool "Enable the FDT library for SPL"
+ default y if SPL_OF_CONTROL
+ help
+ This enables the FDT library (libfdt). It provides functions for
+ accessing binary device tree images in memory, such as adding and
+ removing nodes and properties, scanning through the tree and finding
+ particular compatible nodes. The library operates on a flattened
+ version of the device tree.
+
+config FDT_FIXUP_PARTITIONS
+ bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
+ depends on OF_LIBFDT
+ default n
+ help
+ Allow overwriting defined partitions in the device tree blob
+ using partition info defined in the 'mtdparts' environment
+ variable.
+
+menu "System tables"
+ depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
+
+config GENERATE_SMBIOS_TABLE
+ bool "Generate an SMBIOS (System Management BIOS) table"
+ default y
+ depends on X86 || EFI_LOADER
+ help
+ The System Management BIOS (SMBIOS) specification addresses how
+ motherboard and system vendors present management information about
+ their products in a standard format by extending the BIOS interface
+ on Intel architecture systems.
+
+ Check http://www.dmtf.org/standards/smbios for details.
+
+config SMBIOS_MANUFACTURER
+ string "SMBIOS Manufacturer"
+ depends on GENERATE_SMBIOS_TABLE
+ default SYS_VENDOR
+ help
+ The board manufacturer to store in SMBIOS structures.
+ Change this to override the default one (CONFIG_SYS_VENDOR).
+
+config SMBIOS_PRODUCT_NAME
+ string "SMBIOS Product Name"
+ depends on GENERATE_SMBIOS_TABLE
+ default SYS_BOARD
+ help
+ The product name to store in SMBIOS structures.
+ Change this to override the default one (CONFIG_SYS_BOARD).
+
+endmenu
+
source lib/efi/Kconfig
+source lib/efi_loader/Kconfig
endmenu
projects / people / ms / u-boot.git / blobdiff