1 menu "Library routines"
4 bool "Enable Software based BCH ECC"
6 Enables software based BCH ECC algorithm present in lib/bch.c
7 This is used by SoC platforms which do not have built-in ELM
8 hardware engine required for BCH ECC correction.
10 config CC_OPTIMIZE_LIBS_FOR_SPEED
11 bool "Optimize libraries for speed"
13 Enabling this option will pass "-O2" to gcc when compiling
14 under "lib" directory.
18 config DYNAMIC_CRC_TABLE
19 bool "Enable Dynamic tables for CRC"
21 Enable this option to calculate entries for CRC tables at runtime.
22 This can be helpful when reducing the size of the build image
24 config HAVE_ARCH_IOMAP
27 Enable this option if architecture provides io{read,write}{8,16,32}
28 I/O accessor functions.
30 config HAVE_PRIVATE_LIBGCC
43 select SPL_STRTO if !USE_TINY_PRINTF
48 select TPL_STRTO if !USE_TINY_PRINTF
73 config IMAGE_SPARSE_FILLBUF_SIZE
74 hex "Android sparse image CHUNK_TYPE_FILL buffer size"
76 depends on IMAGE_SPARSE
78 Set the size of the fill buffer used when processing CHUNK_TYPE_FILL
81 config USE_PRIVATE_LIBGCC
82 bool "Use private libgcc"
83 depends on HAVE_PRIVATE_LIBGCC
84 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
86 This option allows you to use the built-in libgcc implementation
87 of U-Boot instead of the one provided by the compiler.
94 The frequency of the timer returned by get_timer().
95 get_timer() must operate in milliseconds and this option must be
98 config USE_TINY_PRINTF
99 bool "Enable tiny printf() version"
101 This option enables a tiny, stripped down printf version.
102 This should only be used in space limited environments,
103 like SPL versions with hard memory limits. This version
104 reduces the code size by about 2.5KiB on armv7.
106 The supported format specifiers are %c, %s, %u/%d and %x.
109 bool "Do not reset the system on fatal error"
111 Define this option to stop the system in case of a fatal error,
112 so that you have to reset it manually. This is probably NOT a good
113 idea for an embedded system where you want the system to reboot
114 automatically as fast as possible, but it may be useful during
115 development since you can try to debug the conditions that lead to
119 bool "Enable regular expression support"
122 If this variable is defined, U-Boot is linked against the
123 SLRE (Super Light Regular Expression) library, which adds
124 regex support to some commands, for example "env grep" and
128 prompt "Pseudo-random library support type"
129 depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID
132 Select the library to provide pseudo-random number generator
133 functions. LIB_HW_RAND supports certain hardware engines that
134 provide this functionality. If in doubt, select LIB_RAND.
137 bool "Pseudo-random library support"
140 bool "HW Engine for random libray support"
144 config SPL_TINY_MEMSET
145 bool "Use a very small memset() in SPL"
147 The faster memset() is the arch-specific one (if available) enabled
148 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
149 better performance by writing a word at a time. But in very
150 size-constrained environments even this may be too big. Enable this
151 option to reduce code size slightly at the cost of some speed.
153 config TPL_TINY_MEMSET
154 bool "Use a very small memset() in TPL"
156 The faster memset() is the arch-specific one (if available) enabled
157 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
158 better performance by writing a word at a time. But in very
159 size-constrained environments even this may be too big. Enable this
160 option to reduce code size slightly at the cost of some speed.
166 bool "Bit reverse library from Linux"
169 bool "Support for tracing of function calls and timing"
172 Enables function tracing within U-Boot. This allows recording of call
173 traces including timing information. The command can write data to
174 memory for exporting for analysis (e.g. using bootchart).
175 See doc/README.trace for full details.
177 source lib/dhry/Kconfig
179 menu "Security support"
182 bool "Support the AES algorithm"
184 This provides a means to encrypt and decrypt data using the AES
185 (Advanced Encryption Standard). This algorithm uses a symetric key
186 and is widely used as a streaming cipher. Different key lengths are
187 supported by the algorithm but only a 128-bit key is supported at
190 source lib/rsa/Kconfig
193 bool "Trusted Platform Module (TPM) Support"
196 This enables support for TPMs which can be used to provide security
197 features for your board. The TPM can be connected via LPC or I2C
198 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
199 command to interactive the TPM. Driver model support is provided
200 for the low-level TPM interface, but only one TPM is supported at
201 a time by the TPM library.
204 bool "Trusted Platform Module (TPM) Support in SPL"
207 This enables support for TPMs which can be used to provide security
208 features for your board. The TPM can be connected via LPC or I2C
209 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
210 command to interactive the TPM. Driver model support is provided
211 for the low-level TPM interface, but only one TPM is supported at
212 a time by the TPM library.
215 bool "Trusted Platform Module (TPM) Support in TPL"
218 This enables support for TPMs which can be used to provide security
219 features for your board. The TPM can be connected via LPC or I2C
220 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
221 command to interactive the TPM. Driver model support is provided
222 for the low-level TPM interface, but only one TPM is supported at
223 a time by the TPM library.
227 menu "Android Verified Boot"
230 bool "Android Verified Boot 2.0 support"
231 depends on ANDROID_BOOT_IMAGE
234 This enables support of Android Verified Boot 2.0 which can be used
235 to assure the end user of the integrity of the software running on a
236 device. Introduces such features as boot chain of trust, rollback
241 menu "Hashing Support"
244 bool "Enable SHA1 support"
246 This option enables support of hashing using SHA1 algorithm.
247 The hash is calculated in software.
248 The SHA1 algorithm produces a 160-bit (20-byte) hash value
252 bool "Enable SHA256 support"
254 This option enables support of hashing using SHA256 algorithm.
255 The hash is calculated in software.
256 The SHA256 algorithm produces a 256-bit (32-byte) hash value
260 bool "Enable hashing using hardware"
262 This option enables hardware acceleration
263 for SHA1/SHA256 hashing.
264 This affects the 'hash' command and also the
265 hash_lookup_algo() function.
267 config SHA_PROG_HW_ACCEL
268 bool "Enable Progressive hashing support using hardware"
269 depends on SHA_HW_ACCEL
271 This option enables hardware-acceleration for
272 SHA1/SHA256 progressive hashing.
273 Data can be streamed in a block at a time and the hashing
274 is performed in hardware.
284 menu "Compression Support"
287 bool "Enable LZ4 decompression support"
289 If this option is set, support for LZ4 compressed images
290 is included. The LZ4 algorithm can run in-place as long as the
291 compressed image is loaded to the end of the output buffer, and
292 trades lower compression ratios for much faster decompression.
294 NOTE: This implements the release version of the LZ4 frame
295 format as generated by default by the 'lz4' command line tool.
296 This is not the same as the outdated, less efficient legacy
297 frame format currently (2015) implemented in the Linux kernel
298 (generated by 'lz4 -l'). The two formats are incompatible.
301 bool "Enable LZMA decompression support"
303 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
304 a dictionary compression algorithm that provides a high compression
305 ratio and fairly fast decompression speed. See also
306 CONFIG_CMD_LZMADEC which provides a decode command.
309 bool "Enable LZO decompression support"
311 This enables support for LZO compression algorithm.r
314 bool "Enable gzip decompression support for SPL build"
318 This enables support for GZIP compression algorithm.
324 This enables ZLIB compression lib.
327 bool "Enable LZ4 decompression support in SPL"
329 This enables support for tge LZ4 decompression algorithm in SPL. LZ4
330 is a lossless data compression algorithm that is focused on
331 fast compression and decompression speed. It belongs to the LZ77
332 family of byte-oriented compression schemes.
335 bool "Enable LZO decompression support in SPL"
337 This enables support for LZO compression algorithm in the SPL.
340 bool "Enable gzip decompression support for SPL build"
343 This enables support for GZIP compression altorithm for SPL boot.
348 This enables compression lib for SPL boot.
353 bool "Enable function for getting errno-related string message"
355 The function errno_str(int errno), returns a pointer to the errno
356 corresponding text message:
357 - if errno is null or positive number - a pointer to "Success" message
358 - if errno is negative - a pointer to errno related message
361 bool "Enable hexdump"
363 This enables functions for printing dumps of binary data.
366 bool "Enable the FDT library"
367 default y if OF_CONTROL
369 This enables the FDT library (libfdt). It provides functions for
370 accessing binary device tree images in memory, such as adding and
371 removing nodes and properties, scanning through the tree and finding
372 particular compatible nodes. The library operates on a flattened
373 version of the device tree.
375 config OF_LIBFDT_OVERLAY
376 bool "Enable the FDT library overlay support"
378 default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
380 This enables the FDT library (libfdt) overlay support.
383 bool "Enable the FDT library for SPL"
384 default y if SPL_OF_CONTROL
386 This enables the FDT library (libfdt). It provides functions for
387 accessing binary device tree images in memory, such as adding and
388 removing nodes and properties, scanning through the tree and finding
389 particular compatible nodes. The library operates on a flattened
390 version of the device tree.
393 bool "Enable the FDT library for TPL"
394 default y if TPL_OF_CONTROL
396 This enables the FDT library (libfdt). It provides functions for
397 accessing binary device tree images in memory, such as adding and
398 removing nodes and properties, scanning through the tree and finding
399 particular compatible nodes. The library operates on a flattened
400 version of the device tree.
402 config FDT_FIXUP_PARTITIONS
403 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
405 depends on CMD_MTDPARTS
407 Allow overwriting defined partitions in the device tree blob
408 using partition info defined in the 'mtdparts' environment
412 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
414 config GENERATE_SMBIOS_TABLE
415 bool "Generate an SMBIOS (System Management BIOS) table"
417 depends on X86 || EFI_LOADER
419 The System Management BIOS (SMBIOS) specification addresses how
420 motherboard and system vendors present management information about
421 their products in a standard format by extending the BIOS interface
422 on Intel architecture systems.
424 Check http://www.dmtf.org/standards/smbios for details.
426 config SMBIOS_MANUFACTURER
427 string "SMBIOS Manufacturer"
428 depends on GENERATE_SMBIOS_TABLE
431 The board manufacturer to store in SMBIOS structures.
432 Change this to override the default one (CONFIG_SYS_VENDOR).
434 config SMBIOS_PRODUCT_NAME
435 string "SMBIOS Product Name"
436 depends on GENERATE_SMBIOS_TABLE
439 The product name to store in SMBIOS structures.
440 Change this to override the default one (CONFIG_SYS_BOARD).
444 source lib/efi/Kconfig
445 source lib/efi_loader/Kconfig
446 source lib/optee/Kconfig
449 bool "enable fdtdec test"