1 menu "Library routines"
4 bool "Enable support for non-identity virtual-physical mappings"
6 Enables helper code for implementing non-identity virtual-physical
7 memory mappings for 32bit CPUs.
9 This library only works in the post-relocation phase.
11 config SYS_NUM_ADDR_MAP
12 int "Size of the address-map table"
16 Sets the number of entries in the virtual-physical mapping table.
19 bool "Access to physical memory region (> 4G)"
21 Some basic support is provided for operations on memory not
22 normally accessible to 32-bit U-Boot - e.g. some architectures
23 support access to more than 4G of memory on 32-bit
24 machines using physical address extension or similar.
25 Enable this to access this basic support, which only supports clearing
29 bool "Enable Software based BCH ECC"
31 Enables software based BCH ECC algorithm present in lib/bch.c
32 This is used by SoC platforms which do not have built-in ELM
33 hardware engine required for BCH ECC correction.
36 bool "Allow access to binman information in the device tree"
37 depends on BINMAN && DM && OF_CONTROL
38 default y if OF_SEPARATE || OF_EMBED
40 This enables U-Boot to access information about binman entries,
41 stored in the device tree in a binman node. Typical uses are to
42 locate entries in the firmware image. See binman.h for the available
45 config CC_OPTIMIZE_LIBS_FOR_SPEED
46 bool "Optimize libraries for speed"
48 Enabling this option will pass "-O2" to gcc when compiling
49 under "lib" directory.
56 config DYNAMIC_CRC_TABLE
57 bool "Enable Dynamic tables for CRC"
59 Enable this option to calculate entries for CRC tables at runtime.
60 This can be helpful when reducing the size of the build image
62 config HAVE_ARCH_IOMAP
65 Enable this option if architecture provides io{read,write}{8,16,32}
66 I/O accessor functions.
68 config HAVE_PRIVATE_LIBGCC
81 select SPL_STRTO if !SPL_USE_TINY_PRINTF
86 select TPL_STRTO if !TPL_USE_TINY_PRINTF
91 select VPL_STRTO if !VPL_USE_TINY_PRINTF
125 config IMAGE_SPARSE_FILLBUF_SIZE
126 hex "Android sparse image CHUNK_TYPE_FILL buffer size"
128 depends on IMAGE_SPARSE
130 Set the size of the fill buffer used when processing CHUNK_TYPE_FILL
133 config USE_PRIVATE_LIBGCC
134 bool "Use private libgcc"
135 depends on HAVE_PRIVATE_LIBGCC
136 default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
138 This option allows you to use the built-in libgcc implementation
139 of U-Boot instead of the one provided by the compiler.
146 The frequency of the timer returned by get_timer().
147 get_timer() must operate in milliseconds and this option must be
150 config SPL_USE_TINY_PRINTF
151 bool "Enable tiny printf() version in SPL"
155 This option enables a tiny, stripped down printf version.
156 This should only be used in space limited environments,
157 like SPL versions with hard memory limits. This version
158 reduces the code size by about 2.5KiB on armv7.
160 The supported format specifiers are %c, %s, %u/%d and %x.
162 config TPL_USE_TINY_PRINTF
163 bool "Enable tiny printf() version in TPL"
165 default y if SPL_USE_TINY_PRINTF
167 This option enables a tiny, stripped down printf version.
168 This should only be used in space limited environments,
169 like SPL versions with hard memory limits. This version
170 reduces the code size by about 2.5KiB on armv7.
172 The supported format specifiers are %c, %s, %u/%d and %x.
174 config VPL_USE_TINY_PRINTF
175 bool "Enable tiny printf() version for VPL"
178 This option enables a tiny, stripped down printf version.
179 This should only be used in space limited environments,
180 like SPL versions with hard memory limits. This version
181 reduces the code size by about 2.5KiB on armv7.
183 The supported format specifiers are %c, %s, %u/%d and %x.
186 bool "Do not reset the system on fatal error"
188 Define this option to stop the system in case of a fatal error,
189 so that you have to reset it manually. This is probably NOT a good
190 idea for an embedded system where you want the system to reboot
191 automatically as fast as possible, but it may be useful during
192 development since you can try to debug the conditions that lead to
196 bool "Enable regular expression support"
199 If this variable is defined, U-Boot is linked against the
200 SLRE (Super Light Regular Expression) library, which adds
201 regex support to some commands, for example "env grep" and
205 prompt "Pseudo-random library support type"
206 depends on NET_RANDOM_ETHADDR || RANDOM_UUID || CMD_UUID || \
207 RNG_SANDBOX || UT_LIB && AES || FAT_WRITE
210 Select the library to provide pseudo-random number generator
211 functions. LIB_HW_RAND supports certain hardware engines that
212 provide this functionality. If in doubt, select LIB_RAND.
215 bool "Pseudo-random library support"
218 bool "HW Engine for random library support"
225 Enable this if your arch or board can support generating ACPI
226 (Advanced Configuration and Power Interface) tables. In this case
227 U-Boot can generate these tables and pass them to the Operating
230 config GENERATE_ACPI_TABLE
231 bool "Generate an ACPI (Advanced Configuration and Power Interface) table"
232 depends on SUPPORT_ACPI
235 The Advanced Configuration and Power Interface (ACPI) specification
236 provides an open standard for device configuration and management
237 by the operating system. It defines platform-independent interfaces
238 for configuration and power management monitoring.
240 config SPL_TINY_MEMSET
241 bool "Use a very small memset() in SPL"
243 The faster memset() is the arch-specific one (if available) enabled
244 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
245 better performance by writing a word at a time. But in very
246 size-constrained environments even this may be too big. Enable this
247 option to reduce code size slightly at the cost of some speed.
249 config TPL_TINY_MEMSET
250 bool "Use a very small memset() in TPL"
253 The faster memset() is the arch-specific one (if available) enabled
254 by CONFIG_USE_ARCH_MEMSET. If that is not enabled, we can still get
255 better performance by writing a word at a time. But in very
256 size-constrained environments even this may be too big. Enable this
257 option to reduce code size slightly at the cost of some speed.
263 bool "Bit reverse library from Linux"
266 bool "Support for tracing of function calls and timing"
270 Enables function tracing within U-Boot. This allows recording of call
271 traces including timing information. The command can write data to
272 memory for exporting for analysis (e.g. using bootchart).
273 See doc/README.trace for full details.
275 config TRACE_BUFFER_SIZE
276 hex "Size of trace buffer in U-Boot"
280 Sets the size of the trace buffer in U-Boot. This is allocated from
281 memory during relocation. If this buffer is too small, the trace
282 history will be truncated, with later records omitted.
284 If early trace is enabled (i.e. before relocation), this buffer must
285 be large enough to include all the data from the early trace buffer as
286 well, since this is copied over to the main buffer during relocation.
288 A trace record is emitted for each function call and each record is
289 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
290 the size is too small then 'trace stats' will show a message saying
291 how many records were dropped due to buffer overflow.
293 config TRACE_CALL_DEPTH_LIMIT
294 int "Trace call depth limit"
298 Sets the maximum call depth up to which function calls are recorded.
301 bool "Enable tracing before relocation"
304 Sometimes it is helpful to trace execution of U-Boot before
305 relocation. This is possible by using a arch-specific, fixed buffer
306 position in memory. Enable this option to start tracing as early as
307 possible after U-Boot starts.
309 config TRACE_EARLY_SIZE
310 hex "Size of early trace buffer in U-Boot"
311 depends on TRACE_EARLY
314 Sets the size of the early trace buffer in bytes. This is used to hold
315 tracing information before relocation.
317 config TRACE_EARLY_CALL_DEPTH_LIMIT
318 int "Early trace call depth limit"
319 depends on TRACE_EARLY
322 Sets the maximum call depth up to which function calls are recorded
323 during early tracing.
325 config TRACE_EARLY_ADDR
326 hex "Address of early trace buffer in U-Boot"
327 depends on TRACE_EARLY
330 Sets the address of the early trace buffer in U-Boot. This memory
331 must be accessible before relocation.
333 A trace record is emitted for each function call and each record is
334 12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
335 the size is too small then the message which says the amount of early
336 data being coped will the the same as the
339 bool "Enable circular buffer support"
341 source lib/dhry/Kconfig
343 menu "Security support"
346 bool "Support the AES algorithm"
348 This provides a means to encrypt and decrypt data using the AES
349 (Advanced Encryption Standard). This algorithm uses a symetric key
350 and is widely used as a streaming cipher. Different key lengths are
351 supported by the algorithm but only a 128-bit key is supported at
354 source lib/ecdsa/Kconfig
355 source lib/rsa/Kconfig
356 source lib/crypto/Kconfig
357 source lib/crypt/Kconfig
360 bool "Trusted Platform Module (TPM) Support"
363 This enables support for TPMs which can be used to provide security
364 features for your board. The TPM can be connected via LPC or I2C
365 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
366 command to interactive the TPM. Driver model support is provided
367 for the low-level TPM interface, but only one TPM is supported at
368 a time by the TPM library.
371 bool "Trusted Platform Module (TPM) Support in SPL"
374 This enables support for TPMs which can be used to provide security
375 features for your board. The TPM can be connected via LPC or I2C
376 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
377 command to interactive the TPM. Driver model support is provided
378 for the low-level TPM interface, but only one TPM is supported at
379 a time by the TPM library.
382 bool "Trusted Platform Module (TPM) Support in TPL"
385 This enables support for TPMs which can be used to provide security
386 features for your board. The TPM can be connected via LPC or I2C
387 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
388 command to interactive the TPM. Driver model support is provided
389 for the low-level TPM interface, but only one TPM is supported at
390 a time by the TPM library.
393 bool "Trusted Platform Module (TPM) Support in VPL"
396 This enables support for TPMs which can be used to provide security
397 features for your board. The TPM can be connected via LPC or I2C
398 and a sandbox TPM is provided for testing purposes. Use the 'tpm'
399 command to interactive the TPM. Driver model support is provided
400 for the low-level TPM interface, but only one TPM is supported at
401 a time by the TPM library.
405 menu "Android Verified Boot"
408 bool "Android Verified Boot 2.0 support"
409 depends on ANDROID_BOOT_IMAGE
411 This enables support of Android Verified Boot 2.0 which can be used
412 to assure the end user of the integrity of the software running on a
413 device. Introduces such features as boot chain of trust, rollback
418 menu "Hashing Support"
421 bool "Enable BLAKE2 support"
423 This option enables support of hashing using BLAKE2B algorithm.
424 The hash is calculated in software.
425 The BLAKE2 algorithm produces a hash value (digest) between 1 and
429 bool "Enable SHA1 support"
431 This option enables support of hashing using SHA1 algorithm.
432 The hash is calculated in software.
433 The SHA1 algorithm produces a 160-bit (20-byte) hash value
437 bool "Enable SHA256 support"
439 This option enables support of hashing using SHA256 algorithm.
440 The hash is calculated in software.
441 The SHA256 algorithm produces a 256-bit (32-byte) hash value
445 bool "Enable SHA512 support"
447 This option enables support of hashing using SHA512 algorithm.
448 The hash is calculated in software.
449 The SHA512 algorithm produces a 512-bit (64-byte) hash value
453 bool "Enable SHA384 support"
456 This option enables support of hashing using SHA384 algorithm.
457 The hash is calculated in software. This is also selects SHA512,
458 because these implementations share the bulk of the code..
459 The SHA384 algorithm produces a 384-bit (48-byte) hash value
463 bool "Enable hardware acceleration for SHA hash functions"
465 This option enables hardware acceleration for the SHA1 and SHA256
466 hashing algorithms. This affects the 'hash' command and also the
467 hash_lookup_algo() function.
472 bool "Enable SHA1 support in SPL"
475 This option enables support of hashing using SHA1 algorithm.
476 The hash is calculated in software.
477 The SHA1 algorithm produces a 160-bit (20-byte) hash value
481 bool "Enable SHA256 support in SPL"
484 This option enables support of hashing using SHA256 algorithm.
485 The hash is calculated in software.
486 The SHA256 algorithm produces a 256-bit (32-byte) hash value
490 bool "Enable SHA512 support in SPL"
493 This option enables support of hashing using SHA512 algorithm.
494 The hash is calculated in software.
495 The SHA512 algorithm produces a 512-bit (64-byte) hash value
499 bool "Enable SHA384 support in SPL"
503 This option enables support of hashing using SHA384 algorithm.
504 The hash is calculated in software. This is also selects SHA512,
505 because these implementations share the bulk of the code..
506 The SHA384 algorithm produces a 384-bit (48-byte) hash value
509 config SPL_SHA_HW_ACCEL
510 bool "Enable hardware acceleration for SHA hash functions"
511 default y if SHA_HW_ACCEL
513 This option enables hardware acceleration for the SHA1 and SHA256
514 hashing algorithms. This affects the 'hash' command and also the
515 hash_lookup_algo() function.
517 config SPL_SHA_PROG_HW_ACCEL
518 bool "Enable Progressive hashing support using hardware in SPL"
519 depends on SHA_PROG_HW_ACCEL
522 This option enables hardware-acceleration for SHA progressive
524 Data can be streamed in a block at a time and the hashing is
525 performed in hardware.
531 config SHA512_HW_ACCEL
532 bool "Enable hardware acceleration for SHA512"
535 This option enables hardware acceleration for the SHA384 and SHA512
536 hashing algorithms. This affects the 'hash' command and also the
537 hash_lookup_algo() function.
539 config SHA_PROG_HW_ACCEL
540 bool "Enable Progressive hashing support using hardware"
542 This option enables hardware-acceleration for SHA progressive
544 Data can be streamed in a block at a time and the hashing is
545 performed in hardware.
550 bool "Support MD5 algorithm"
552 This option enables MD5 support. MD5 is an algorithm designed
553 in 1991 that produces a 16-byte digest (or checksum) from its input
554 data. It has a number of vulnerabilities which preclude its use in
555 security applications, but it can be useful for providing a quick
556 checksum of a block of data.
559 bool "Support MD5 algorithm in SPL"
561 This option enables MD5 support in SPL. MD5 is an algorithm designed
562 in 1991 that produces a 16-byte digest (or checksum) from its input
563 data. It has a number of vulnerabilities which preclude its use in
564 security applications, but it can be useful for providing a quick
565 checksum of a block of data.
570 Enables CRC32 support in U-Boot. This is normally required.
580 menu "Compression Support"
583 bool "Enable LZ4 decompression support"
585 If this option is set, support for LZ4 compressed images
586 is included. The LZ4 algorithm can run in-place as long as the
587 compressed image is loaded to the end of the output buffer, and
588 trades lower compression ratios for much faster decompression.
590 NOTE: This implements the release version of the LZ4 frame
591 format as generated by default by the 'lz4' command line tool.
592 This is not the same as the outdated, less efficient legacy
593 frame format currently (2015) implemented in the Linux kernel
594 (generated by 'lz4 -l'). The two formats are incompatible.
597 bool "Enable LZMA decompression support"
599 This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
600 a dictionary compression algorithm that provides a high compression
601 ratio and fairly fast decompression speed. See also
602 CONFIG_CMD_LZMADEC which provides a decode command.
605 bool "Enable LZO decompression support"
607 This enables support for the LZO compression algorithm.
610 bool "Enable gzip decompression support"
614 This enables support for GZIP compression algorithm.
616 config ZLIB_UNCOMPRESS
617 bool "Enables zlib's uncompress() functionality"
619 This enables an extra zlib functionality: the uncompress() function,
620 which decompresses data from a buffer into another, knowing their
621 sizes. Unlike gunzip(), there is no header parsing.
623 config GZIP_COMPRESSED
628 bool "Enable bzip2 decompression support"
630 This enables support for BZIP2 compression algorithm.
636 This enables ZLIB compression lib.
639 bool "Enable Zstandard decompression support"
642 This enables Zstandard decompression library.
645 bool "Enable LZ4 decompression support in SPL"
647 This enables support for the LZ4 decompression algorithm in SPL. LZ4
648 is a lossless data compression algorithm that is focused on
649 fast compression and decompression speed. It belongs to the LZ77
650 family of byte-oriented compression schemes.
653 bool "Enable LZMA decompression support for SPL build"
655 This enables support for LZMA compression algorithm for SPL boot.
658 bool "Enable LZMA decompression support for VPL build"
661 This enables support for LZMA compression algorithm for VPL boot.
664 bool "Enable LZO decompression support in SPL"
666 This enables support for LZO compression algorithm in the SPL.
669 bool "Enable gzip decompression support for SPL build"
672 This enables support for the GZIP compression algorithm for SPL boot.
677 This enables compression lib for SPL boot.
680 bool "Enable Zstandard decompression support in SPL"
683 This enables Zstandard decompression library in the SPL.
688 bool "Enable function for getting errno-related string message"
690 The function errno_str(int errno), returns a pointer to the errno
691 corresponding text message:
692 - if errno is null or positive number - a pointer to "Success" message
693 - if errno is negative - a pointer to errno related message
696 bool "Enable hexdump"
698 This enables functions for printing dumps of binary data.
701 bool "Enable hexdump in SPL"
702 depends on SPL && HEXDUMP
704 This enables functions for printing dumps of binary data in
710 This enables functions for parsing command-line options.
713 bool "Enable the FDT library"
714 default y if OF_CONTROL
716 This enables the FDT library (libfdt). It provides functions for
717 accessing binary device tree images in memory, such as adding and
718 removing nodes and properties, scanning through the tree and finding
719 particular compatible nodes. The library operates on a flattened
720 version of the device tree.
722 config OF_LIBFDT_ASSUME_MASK
723 hex "Mask of conditions to assume for libfdt"
724 depends on OF_LIBFDT || FIT
727 Use this to change the assumptions made by libfdt about the
728 device tree it is working with. A value of 0 means that no assumptions
729 are made, and libfdt is able to deal with malicious data. A value of
730 0xff means all assumptions are made and any invalid data may cause
731 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
733 config OF_LIBFDT_OVERLAY
734 bool "Enable the FDT library overlay support"
736 default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
738 This enables the FDT library (libfdt) overlay support.
741 bool "Enable the FDT library for SPL"
742 depends on SPL_LIBGENERIC_SUPPORT
743 default y if SPL_OF_CONTROL
745 This enables the FDT library (libfdt). It provides functions for
746 accessing binary device tree images in memory, such as adding and
747 removing nodes and properties, scanning through the tree and finding
748 particular compatible nodes. The library operates on a flattened
749 version of the device tree.
751 config SPL_OF_LIBFDT_ASSUME_MASK
752 hex "Mask of conditions to assume for libfdt"
753 depends on SPL_OF_LIBFDT || FIT
756 Use this to change the assumptions made by libfdt in SPL about the
757 device tree it is working with. A value of 0 means that no assumptions
758 are made, and libfdt is able to deal with malicious data. A value of
759 0xff means all assumptions are made and any invalid data may cause
760 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
763 bool "Enable the FDT library for TPL"
764 depends on TPL_LIBGENERIC_SUPPORT
765 default y if TPL_OF_CONTROL
767 This enables the FDT library (libfdt). It provides functions for
768 accessing binary device tree images in memory, such as adding and
769 removing nodes and properties, scanning through the tree and finding
770 particular compatible nodes. The library operates on a flattened
771 version of the device tree.
773 config TPL_OF_LIBFDT_ASSUME_MASK
774 hex "Mask of conditions to assume for libfdt"
775 depends on TPL_OF_LIBFDT || (FIT && TPL)
778 Use this to change the assumptions made by libfdt in TPL about the
779 device tree it is working with. A value of 0 means that no assumptions
780 are made, and libfdt is able to deal with malicious data. A value of
781 0xff means all assumptions are made and any invalid data may cause
782 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
785 bool "Enable the FDT library for VPL"
787 default y if VPL_OF_CONTROL && !VPL_OF_PLATDATA
789 This enables the FDT library (libfdt). It provides functions for
790 accessing binary device tree images in memory, such as adding and
791 removing nodes and properties, scanning through the tree and finding
792 particular compatible nodes. The library operates on a flattened
793 version of the device tree.
795 config VPL_OF_LIBFDT_ASSUME_MASK
796 hex "Mask of conditions to assume for libfdt"
797 depends on VPL_OF_LIBFDT || (FIT && VPL)
800 Use this to change the assumptions made by libfdt in SPL about the
801 device tree it is working with. A value of 0 means that no assumptions
802 are made, and libfdt is able to deal with malicious data. A value of
803 0xff means all assumptions are made and any invalid data may cause
804 unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
806 config FDT_FIXUP_PARTITIONS
807 bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
809 depends on CMD_MTDPARTS
811 Allow overwriting defined partitions in the device tree blob
812 using partition info defined in the 'mtdparts' environment
816 depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
818 config BLOBLIST_TABLES
819 bool "Put tables in a bloblist"
820 depends on X86 && BLOBLIST
822 Normally tables are placed at address 0xf0000 and can be up to 64KB
823 long. With this option, tables are instead placed in the bloblist
824 with a pointer from 0xf0000. The size can then be larger and the
825 tables can be placed high in memory.
827 config GENERATE_SMBIOS_TABLE
828 bool "Generate an SMBIOS (System Management BIOS) table"
830 depends on X86 || EFI_LOADER
832 The System Management BIOS (SMBIOS) specification addresses how
833 motherboard and system vendors present management information about
834 their products in a standard format by extending the BIOS interface
835 on Intel architecture systems.
837 Check http://www.dmtf.org/standards/smbios for details.
839 See also SMBIOS_SYSINFO which allows SMBIOS values to be provided in
843 bool "enable continued fraction calculation routines"
845 config SPL_LIB_RATIONAL
846 bool "enable continued fraction calculation routines for SPL"
854 ASN.1 (Abstract Syntax Notation One) is a standard interface
855 description language for defining data structures that can be
856 serialized and deserialized in a cross-platform way. It is
857 broadly used in telecommunications and computer networking,
858 and especially in cryptography (https://en.wikipedia.org/wiki/ASN.1).
859 This option enables the support of the asn1 compiler.
864 ASN.1 (Abstract Syntax Notation One) is a standard interface
865 description language for defining data structures that can be
866 serialized and deserialized in a cross-platform way. It is
867 broadly used in telecommunications and computer networking,
868 and especially in cryptography (https://en.wikipedia.org/wiki/ASN.1).
869 This option enables the support of the asn1 decoder.
871 config SPL_ASN1_DECODER
874 ASN.1 (Abstract Syntax Notation One) is a standard interface
875 description language for defining data structures that can be
876 serialized and deserialized in a cross-platform way. It is
877 broadly used in telecommunications and computer networking,
878 and especially in cryptography (https://en.wikipedia.org/wiki/ASN.1).
879 This option enables the support of the asn1 decoder in the SPL.
884 In computing, object identifiers or OIDs are an identifier mechanism
885 standardized by the International Telecommunication Union (ITU) and
886 ISO/IEC for naming any object, concept, or "thing" with a globally
887 unambiguous persistent name (https://en.wikipedia.org/wiki/Object_identifier).
888 Enable fast lookup object identifier registry.
890 config SPL_OID_REGISTRY
893 In computing, object identifiers or OIDs are an identifier mechanism
894 standardized by the International Telecommunication Union (ITU) and
895 ISO/IEC for naming any object, concept, or "thing" with a globally
896 unambiguous persistent name (https://en.wikipedia.org/wiki/Object_identifier).
897 Enable fast lookup object identifier registry in the SPL.
902 A simple parser for SMBIOS data.
904 source lib/efi/Kconfig
905 source lib/efi_loader/Kconfig
906 source lib/optee/Kconfig
909 bool "enable fdtdec test"
918 Support basic elf loading/validating functions.
919 This supports for 32 bit and 64 bit versions.
922 bool "Enable the logical memory blocks library (lmb)"
923 default y if ARC || ARM || M68K || MICROBLAZE || MIPS || \
924 NIOS2 || PPC || RISCV || SANDBOX || SH || X86 || XTENSA
926 Support the library logical memory blocks.
928 config LMB_USE_MAX_REGIONS
929 bool "Use a common number of memory and reserved regions in lmb lib"
933 Define the number of supported memory regions in the library logical
935 This feature allow to reduce the lmb library size by using compiler
936 optimization when LMB_MEMORY_REGIONS == LMB_RESERVED_REGIONS.
938 config LMB_MAX_REGIONS
939 int "Number of memory and reserved regions in lmb lib"
940 depends on LMB && LMB_USE_MAX_REGIONS
943 Define the number of supported regions, memory and reserved, in the
944 library logical memory blocks.
946 config LMB_MEMORY_REGIONS
947 int "Number of memory regions in lmb lib"
948 depends on LMB && !LMB_USE_MAX_REGIONS
951 Define the number of supported memory regions in the library logical
953 The minimal value is CONFIG_NR_DRAM_BANKS.
955 config LMB_RESERVED_REGIONS
956 int "Number of reserved regions in lmb lib"
957 depends on LMB && !LMB_USE_MAX_REGIONS
960 Define the number of supported reserved regions in the library logical