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_ARCH_IOMAP
+ bool
+ help
+ Enable this option if architecture provides io{read,write}{8,16,32}
+ I/O accessor functions.
+
config HAVE_PRIVATE_LIBGCC
bool
+config LIB_UUID
+ bool
+
+config PRINTF
+ bool
+ default y
+
+config SPL_PRINTF
+ bool
+ select SPL_SPRINTF
+ select SPL_STRTO if !SPL_USE_TINY_PRINTF
+
+config TPL_PRINTF
+ bool
+ select TPL_SPRINTF
+ select TPL_STRTO if !TPL_USE_TINY_PRINTF
+
+config SPRINTF
+ bool
+ default y
+
+config SPL_SPRINTF
+ bool
+
+config TPL_SPRINTF
+ bool
+
+config STRTO
+ bool
+ default y
+
+config SPL_STRTO
+ bool
+
+config TPL_STRTO
+ bool
+
+config IMAGE_SPARSE
+ bool
+
+config IMAGE_SPARSE_FILLBUF_SIZE
+ hex "Android sparse image CHUNK_TYPE_FILL buffer size"
+ default 0x80000
+ depends on IMAGE_SPARSE
+ help
+ Set the size of the fill buffer used when processing CHUNK_TYPE_FILL
+ chunks.
+
config USE_PRIVATE_LIBGCC
bool "Use private libgcc"
depends on HAVE_PRIVATE_LIBGCC
get_timer() must operate in milliseconds and this option must be
set to 1000.
-config USE_TINY_PRINTF
+config SPL_USE_TINY_PRINTF
+ bool "Enable tiny printf() version"
+ depends on SPL
+ default y
+ help
+ This option enables a tiny, stripped down printf version.
+ This should only be used in space limited environments,
+ like SPL versions with hard memory limits. This version
+ reduces the code size by about 2.5KiB on armv7.
+
+ The supported format specifiers are %c, %s, %u/%d and %x.
+
+config TPL_USE_TINY_PRINTF
bool "Enable tiny printf() version"
+ depends on TPL
+ default y if SPL_USE_TINY_PRINTF
help
This option enables a tiny, stripped down printf version.
This should only be used in space limited environments,
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 y if NET
regex support to some commands, for example "env grep" and
"setexpr".
-config LIB_RAND
- bool "Pseudo-random library support "
+choice
+ prompt "Pseudo-random library support type"
+ depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID
+ default LIB_RAND
help
- This library provides pseudo-random number generator functions.
+ 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"
+
+config LIB_HW_RAND
+ bool "HW Engine for random libray support"
+
+endchoice
config SPL_TINY_MEMSET
bool "Use a very small memset() in SPL"
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
+ size-constrained environments even this may be too big. Enable this
option to reduce code size slightly at the cost of some speed.
config TPL_TINY_MEMSET
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
+ size-constrained environments 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"
+
+config TRACE
+ bool "Support for tracing of function calls and timing"
+ imply CMD_TRACE
+ help
+ Enables function tracing within U-Boot. This allows recording of call
+ traces including timing information. The command can write data to
+ memory for exporting for analysis (e.g. using bootchart).
+ See doc/README.trace for full details.
+
+config TRACE_BUFFER_SIZE
+ hex "Size of trace buffer in U-Boot"
+ depends on TRACE
+ default 0x01000000
+ help
+ Sets the size of the trace buffer in U-Boot. This is allocated from
+ memory during relocation. If this buffer is too small, the trace
+ history will be truncated, with later records omitted.
+
+ If early trace is enabled (i.e. before relocation), this buffer must
+ be large enough to include all the data from the early trace buffer as
+ well, since this is copied over to the main buffer during relocation.
+
+ A trace record is emitted for each function call and each record is
+ 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
+ the size is too small then 'trace stats' will show a message saying
+ how many records were dropped due to buffer overflow.
+
+config TRACE_CALL_DEPTH_LIMIT
+ int "Trace call depth limit"
+ depends on TRACE
+ default 15
+ help
+ Sets the maximum call depth up to which function calls are recorded.
+
+config TRACE_EARLY
+ bool "Enable tracing before relocation"
+ depends on TRACE
+ help
+ Sometimes it is helpful to trace execution of U-Boot before
+ relocation. This is possible by using a arch-specific, fixed buffer
+ position in memory. Enable this option to start tracing as early as
+ possible after U-Boot starts.
+
+config TRACE_EARLY_SIZE
+ hex "Size of early trace buffer in U-Boot"
+ depends on TRACE_EARLY
+ default 0x00100000
+ help
+ Sets the size of the early trace buffer in bytes. This is used to hold
+ tracing information before relocation.
+
+config TRACE_EARLY_CALL_DEPTH_LIMIT
+ int "Early trace call depth limit"
+ depends on TRACE_EARLY
+ default 200
+ help
+ Sets the maximum call depth up to which function calls are recorded
+ during early tracing.
+
+config TRACE_EARLY_ADDR
+ hex "Address of early trace buffer in U-Boot"
+ depends on TRACE_EARLY
+ default 0x00100000
+ help
+ Sets the address of the early trace buffer in U-Boot. This memory
+ must be accessible before relocation.
+
+ A trace record is emitted for each function call and each record is
+ 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
+ the size is too small then the message which says the amount of early
+ data being coped will the the same as the
+
source lib/dhry/Kconfig
menu "Security support"
for the low-level TPM interface, but only one TPM is supported at
a time by the TPM library.
+config SPL_TPM
+ bool "Trusted Platform Module (TPM) Support in SPL"
+ depends on SPL_DM
+ help
+ This enables support for TPMs which can be used to provide security
+ features for your board. The TPM can be connected via LPC or I2C
+ and a sandbox TPM is provided for testing purposes. Use the 'tpm'
+ command to interactive the TPM. Driver model support is provided
+ for the low-level TPM interface, but only one TPM is supported at
+ a time by the TPM library.
+
+config TPL_TPM
+ bool "Trusted Platform Module (TPM) Support in TPL"
+ depends on TPL_DM
+ help
+ This enables support for TPMs which can be used to provide security
+ features for your board. The TPM can be connected via LPC or I2C
+ and a sandbox TPM is provided for testing purposes. Use the 'tpm'
+ command to interactive the TPM. Driver model support is provided
+ for the low-level TPM interface, but only one TPM is supported at
+ a time by the TPM library.
+
+endmenu
+
+menu "Android Verified Boot"
+
+config LIBAVB
+ bool "Android Verified Boot 2.0 support"
+ depends on ANDROID_BOOT_IMAGE
+ default n
+ help
+ This enables support of Android Verified Boot 2.0 which can be used
+ to assure the end user of the integrity of the software running on a
+ device. Introduces such features as boot chain of trust, rollback
+ protection etc.
+
endmenu
menu "Hashing Support"
config CRC32C
bool
+config XXHASH
+ bool
+
endmenu
menu "Compression Support"
help
This enables support for LZO compression algorithm.r
+config GZIP
+ bool "Enable gzip decompression support"
+ select ZLIB
+ default y
+ help
+ This enables support for GZIP compression algorithm.
+
+config ZLIB
+ bool
+ default y
+ help
+ This enables ZLIB compression lib.
+
+config ZSTD
+ bool "Enable Zstandard decompression support"
+ select XXHASH
+ help
+ This enables Zstandard decompression library.
+
+config SPL_LZ4
+ bool "Enable LZ4 decompression support in SPL"
+ help
+ This enables support for tge LZ4 decompression algorithm in SPL. LZ4
+ is a lossless data compression algorithm that is focused on
+ fast compression and decompression speed. It belongs to the LZ77
+ family of byte-oriented compression schemes.
+
+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 compression lib for SPL boot.
+config SPL_ZSTD
+ bool "Enable Zstandard decompression support in SPL"
+ select XXHASH
+ help
+ This enables Zstandard decompression library in the SPL.
+
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 HEXDUMP
+ bool "Enable hexdump"
+ help
+ This enables functions for printing dumps of binary data.
+
config OF_LIBFDT
bool "Enable the FDT library"
default y if OF_CONTROL
config OF_LIBFDT_OVERLAY
bool "Enable the FDT library overlay support"
+ depends on OF_LIBFDT
+ default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
help
This enables the FDT library (libfdt) overlay support.
particular compatible nodes. The library operates on a flattened
version of the device tree.
+config TPL_OF_LIBFDT
+ bool "Enable the FDT library for TPL"
+ default y if TPL_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
+ depends on CMD_MTDPARTS
help
Allow overwriting defined partitions in the device tree blob
using partition info defined in the 'mtdparts' environment
source lib/efi/Kconfig
source lib/efi_loader/Kconfig
+source lib/optee/Kconfig
+
+config TEST_FDTDEC
+ bool "enable fdtdec test"
+ depends on OF_LIBFDT
endmenu
projects / oweals / u-boot.git / blobdiff