[J-u-boot.git] / lib / Kconfig

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
	  Enabling this option will pass "-O2" to gcc when compiling
	  under "lib" directory.

	  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 !USE_TINY_PRINTF

config TPL_PRINTF
	bool
	select TPL_SPRINTF
	select TPL_STRTO if !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
	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 provided by the compiler.
	  If unsure, say N.

config SYS_HZ
	int
	default 1000
	help
	  The frequency of the timer returned by get_timer().
	  get_timer() must operate in milliseconds and this option must be
	  set to 1000.

config USE_TINY_PRINTF
	bool "Enable tiny printf() version"
	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 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
	help
	  If this variable is defined, U-Boot is linked against the
	  SLRE (Super Light Regular Expression) library, which adds
	  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"

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 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
	bool "Use a very small memset() in TPL"
	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 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_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_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"

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
	bool "Trusted Platform Module (TPM) Support"
	depends on 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 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 SHA1
	bool "Enable SHA1 support"
	help
	  This option enables support of hashing using SHA1 algorithm.
	  The hash is calculated in software.
	  The SHA1 algorithm produces a 160-bit (20-byte) hash value
	  (digest).

config SHA256
	bool "Enable SHA256 support"
	help
	  This option enables support of hashing using SHA256 algorithm.
	  The hash is calculated in software.
	  The SHA256 algorithm produces a 256-bit (32-byte) hash value
	  (digest).

config SHA_HW_ACCEL
	bool "Enable hashing using hardware"
	help
	  This option enables hardware acceleration
	  for SHA1/SHA256 hashing.
	  This affects the 'hash' command and also the
	  hash_lookup_algo() function.

config SHA_PROG_HW_ACCEL
	bool "Enable Progressive hashing support using hardware"
	depends on SHA_HW_ACCEL
	help
	  This option enables hardware-acceleration for
	  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

config XXHASH
	bool

endmenu

menu "Compression Support"

config LZ4
	bool "Enable LZ4 decompression support"
	help
	  If this option is set, support for LZ4 compressed images
	  is included. The LZ4 algorithm can run in-place as long as the
	  compressed image is loaded to the end of the output buffer, and
	  trades lower compression ratios for much faster decompression.
	  
	  NOTE: This implements the release version of the LZ4 frame
	  format as generated by default by the 'lz4' command line tool.
	  This is not the same as the outdated, less efficient legacy
	  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 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 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 support for GZIP compression altorithm for SPL boot.

config SPL_ZLIB
	bool
	help
	  This enables compression lib for SPL boot.

endmenu

config ERRNO_STR
	bool "Enable function for getting errno-related string message"
	help
	  The function errno_str(int errno), returns a pointer to the errno
	  corresponding text message:
	  - 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
	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"
	depends on OF_LIBFDT
	default y if ARCH_OMAP2PLUS || ARCH_KEYSTONE
	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 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
	depends on CMD_MTDPARTS
	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
source lib/optee/Kconfig

config TEST_FDTDEC
	bool "enable fdtdec test"
	depends on OF_LIBFDT

endmenu
Commit	Line	Data
ed36323f MY	1	menu "Library routines"
ed36323f MY	2
6ef2f901 AF	3	config BCH
	4	bool "Enable Software based BCH ECC"
	5	help
	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.
	9
b0928da6 MY	10	config CC_OPTIMIZE_LIBS_FOR_SPEED
	11	bool "Optimize libraries for speed"
	12	help
	13	Enabling this option will pass "-O2" to gcc when compiling
	14	under "lib" directory.
	15
	16	If unsure, say N.
	17
36c1877c FA	18	config DYNAMIC_CRC_TABLE
	19	bool "Enable Dynamic tables for CRC"
	20	help
	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
	23
2895c4b7 BM	24	config HAVE_ARCH_IOMAP
	25	bool
	26	help
	27	Enable this option if architecture provides io{read,write}{8,16,32}
	28	I/O accessor functions.
	29
45ccec8f MY	30	config HAVE_PRIVATE_LIBGCC
	31	bool
	32
a451bc27 AF	33	config LIB_UUID
	34	bool
	35
14ad44ab AK	36	config PRINTF
	37	bool
	38	default y
	39
	40	config SPL_PRINTF
	41	bool
	42	select SPL_SPRINTF
	43	select SPL_STRTO if !USE_TINY_PRINTF
	44
	45	config TPL_PRINTF
	46	bool
	47	select TPL_SPRINTF
	48	select TPL_STRTO if !USE_TINY_PRINTF
	49
	50	config SPRINTF
	51	bool
	52	default y
	53
	54	config SPL_SPRINTF
	55	bool
	56
	57	config TPL_SPRINTF
	58	bool
	59
	60	config STRTO
	61	bool
	62	default y
	63
	64	config SPL_STRTO
	65	bool
	66
	67	config TPL_STRTO
	68	bool
	69
c232d14d AK	70	config IMAGE_SPARSE
	71	bool
	72
	73	config IMAGE_SPARSE_FILLBUF_SIZE
	74	hex "Android sparse image CHUNK_TYPE_FILL buffer size"
	75	default 0x80000
	76	depends on IMAGE_SPARSE
	77	help
	78	Set the size of the fill buffer used when processing CHUNK_TYPE_FILL
	79	chunks.
	80
45ccec8f MY	81	config USE_PRIVATE_LIBGCC
	82	bool "Use private libgcc"
	83	depends on HAVE_PRIVATE_LIBGCC
91b86e21	84	default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) \|\| MIPS)
45ccec8f MY	85	help
45ccec8f MY	86	This option allows you to use the built-in libgcc implementation
67976306	87	of U-Boot instead of the one provided by the compiler.
45ccec8f MY	88	If unsure, say N.
45ccec8f MY	89
8c688bc4 MY	90	config SYS_HZ
	91	int
	92	default 1000
	93	help
	94	The frequency of the timer returned by get_timer().
	95	get_timer() must operate in milliseconds and this option must be
	96	set to 1000.
	97
7d9cde10 SR	98	config USE_TINY_PRINTF
	99	bool "Enable tiny printf() version"
	100	help
	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.
	105
	106	The supported format specifiers are %c, %s, %u/%d and %x.
	107
7e3caa81 MY	108	config PANIC_HANG
	109	bool "Do not reset the system on fatal error"
	110	help
	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
	116	the situation.
	117
1a60650c JH	118	config REGEX
1a60650c JH	119	bool "Enable regular expression support"
f7848d90	120	default y if NET
1a60650c JH	121	help
	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
	125	"setexpr".
	126
a5a37567 AF	127	choice
	128	prompt "Pseudo-random library support type"
	129	depends on NET_RANDOM_ETHADDR \|\| RANDOM_UUID \|\| CMD_UUID
	130	default LIB_RAND
3850dbe8	131	help
a5a37567 AF	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.
	135
	136	config LIB_RAND
	137	bool "Pseudo-random library support"
	138
	139	config LIB_HW_RAND
	140	bool "HW Engine for random libray support"
	141
	142	endchoice
9ba9e85f	143
ab4458bd SG	144	config SPL_TINY_MEMSET
	145	bool "Use a very small memset() in SPL"
	146	help
	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
6e705114	150	size-constrained environments even this may be too big. Enable this
ab4458bd SG	151	option to reduce code size slightly at the cost of some speed.
ab4458bd SG	152
96b9082c PT	153	config TPL_TINY_MEMSET
	154	bool "Use a very small memset() in TPL"
	155	help
	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
6e705114	159	size-constrained environments even this may be too big. Enable this
96b9082c PT	160	option to reduce code size slightly at the cost of some speed.
96b9082c PT	161
aa049152 BB	162	config RBTREE
	163	bool
	164
da5337a6 NH	165	config BITREVERSE
	166	bool "Bit reverse library from Linux"
	167
a24a78d7 SG	168	config TRACE
	169	bool "Support for tracing of function calls and timing"
	170	imply CMD_TRACE
	171	help
	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.
	176
1c6eb075 SG	177	config TRACE_BUFFER_SIZE
	178	hex "Size of trace buffer in U-Boot"
	179	depends on TRACE
	180	default 0x01000000
	181	help
	182	Sets the size of the trace buffer in U-Boot. This is allocated from
	183	memory during relocation. If this buffer is too small, the trace
	184	history will be truncated, with later records omitted.
	185
	186	If early trace is enabled (i.e. before relocation), this buffer must
	187	be large enough to include all the data from the early trace buffer as
	188	well, since this is copied over to the main buffer during relocation.
	189
	190	A trace record is emitted for each function call and each record is
	191	12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
	192	the size is too small then 'trace stats' will show a message saying
	193	how many records were dropped due to buffer overflow.
	194
	195	config TRACE_EARLY
	196	bool "Enable tracing before relocation"
	197	depends on TRACE
	198	help
	199	Sometimes it is helpful to trace execution of U-Boot before
	200	relocation. This is possible by using a arch-specific, fixed buffer
	201	position in memory. Enable this option to start tracing as early as
	202	possible after U-Boot starts.
	203
	204	config TRACE_EARLY_SIZE
	205	hex "Size of early trace buffer in U-Boot"
	206	depends on TRACE_EARLY
	207	default 0x00100000
	208	help
	209	Sets the size of the early trace buffer in bytes. This is used to hold
	210	tracing information before relocation.
	211
	212	config TRACE_EARLY_ADDR
	213	hex "Address of early trace buffer in U-Boot"
	214	depends on TRACE_EARLY
	215	default 0x00100000
	216	help
	217	Sets the address of the early trace buffer in U-Boot. This memory
	218	must be accessible before relocation.
	219
	220	A trace record is emitted for each function call and each record is
	221	12 bytes (see struct trace_call). A suggested minimum size is 1MB. If
	222	the size is too small then the message which says the amount of early
	223	data being coped will the the same as the
	224
d1389403 SG	225	source lib/dhry/Kconfig
d1389403 SG	226
b1a873df SG	227	menu "Security support"
	228
	229	config AES
	230	bool "Support the AES algorithm"
	231	help
	232	This provides a means to encrypt and decrypt data using the AES
	233	(Advanced Encryption Standard). This algorithm uses a symetric key
	234	and is widely used as a streaming cipher. Different key lengths are
	235	supported by the algorithm but only a 128-bit key is supported at
	236	present.
	237
d9f23c7f	238	source lib/rsa/Kconfig
c4beb22f	239
a7d660bc SG	240	config TPM
a7d660bc SG	241	bool "Trusted Platform Module (TPM) Support"
2419cd16	242	depends on DM
a7d660bc SG	243	help
	244	This enables support for TPMs which can be used to provide security
	245	features for your board. The TPM can be connected via LPC or I2C
	246	and a sandbox TPM is provided for testing purposes. Use the 'tpm'
	247	command to interactive the TPM. Driver model support is provided
	248	for the low-level TPM interface, but only one TPM is supported at
	249	a time by the TPM library.
	250
6307896c SG	251	config SPL_TPM
	252	bool "Trusted Platform Module (TPM) Support in SPL"
	253	depends on SPL_DM
	254	help
	255	This enables support for TPMs which can be used to provide security
	256	features for your board. The TPM can be connected via LPC or I2C
	257	and a sandbox TPM is provided for testing purposes. Use the 'tpm'
	258	command to interactive the TPM. Driver model support is provided
	259	for the low-level TPM interface, but only one TPM is supported at
	260	a time by the TPM library.
	261
	262	config TPL_TPM
	263	bool "Trusted Platform Module (TPM) Support in TPL"
	264	depends on TPL_DM
	265	help
	266	This enables support for TPMs which can be used to provide security
	267	features for your board. The TPM can be connected via LPC or I2C
	268	and a sandbox TPM is provided for testing purposes. Use the 'tpm'
	269	command to interactive the TPM. Driver model support is provided
	270	for the low-level TPM interface, but only one TPM is supported at
	271	a time by the TPM library.
	272
b1a873df SG	273	endmenu
b1a873df SG	274
3330584d IO	275	menu "Android Verified Boot"
	276
	277	config LIBAVB
	278	bool "Android Verified Boot 2.0 support"
	279	depends on ANDROID_BOOT_IMAGE
	280	default n
	281	help
	282	This enables support of Android Verified Boot 2.0 which can be used
	283	to assure the end user of the integrity of the software running on a
	284	device. Introduces such features as boot chain of trust, rollback
	285	protection etc.
	286
	287	endmenu
	288
94e3c8c4	289	menu "Hashing Support"
	290
	291	config SHA1
	292	bool "Enable SHA1 support"
	293	help
	294	This option enables support of hashing using SHA1 algorithm.
	295	The hash is calculated in software.
	296	The SHA1 algorithm produces a 160-bit (20-byte) hash value
	297	(digest).
	298
	299	config SHA256
	300	bool "Enable SHA256 support"
	301	help
	302	This option enables support of hashing using SHA256 algorithm.
	303	The hash is calculated in software.
	304	The SHA256 algorithm produces a 256-bit (32-byte) hash value
	305	(digest).
	306
	307	config SHA_HW_ACCEL
	308	bool "Enable hashing using hardware"
	309	help
	310	This option enables hardware acceleration
	311	for SHA1/SHA256 hashing.
	312	This affects the 'hash' command and also the
	313	hash_lookup_algo() function.
	314
	315	config SHA_PROG_HW_ACCEL
	316	bool "Enable Progressive hashing support using hardware"
	317	depends on SHA_HW_ACCEL
	318	help
	319	This option enables hardware-acceleration for
	320	SHA1/SHA256 progressive hashing.
	321	Data can be streamed in a block at a time and the hashing
	322	is performed in hardware.
bea79d7d AP	323
	324	config MD5
	325	bool
	326
85d8bf57 MB	327	config CRC32C
	328	bool
	329
83a486b6 MB	330	config XXHASH
	331	bool
	332
94e3c8c4	333	endmenu
94e3c8c4	334
027b728d JW	335	menu "Compression Support"
	336
	337	config LZ4
	338	bool "Enable LZ4 decompression support"
	339	help
	340	If this option is set, support for LZ4 compressed images
	341	is included. The LZ4 algorithm can run in-place as long as the
	342	compressed image is loaded to the end of the output buffer, and
	343	trades lower compression ratios for much faster decompression.
	344
	345	NOTE: This implements the release version of the LZ4 frame
	346	format as generated by default by the 'lz4' command line tool.
	347	This is not the same as the outdated, less efficient legacy
	348	frame format currently (2015) implemented in the Linux kernel
	349	(generated by 'lz4 -l'). The two formats are incompatible.
	350
aed998aa SG	351	config LZMA
	352	bool "Enable LZMA decompression support"
	353	help
	354	This enables support for LZMA (Lempel-Ziv-Markov chain algorithm),
	355	a dictionary compression algorithm that provides a high compression
	356	ratio and fairly fast decompression speed. See also
	357	CONFIG_CMD_LZMADEC which provides a decode command.
	358
173aafbf	359	config LZO
d56b4b19 TR	360	bool "Enable LZO decompression support"
	361	help
	362	This enables support for LZO compression algorithm.r
7264f292	363
95f4bbd5	364	config GZIP
5132361a	365	bool "Enable gzip decompression support"
95f4bbd5 MV	366	select ZLIB
	367	default y
	368	help
	369	This enables support for GZIP compression algorithm.
	370
	371	config ZLIB
	372	bool
	373	default y
	374	help
	375	This enables ZLIB compression lib.
	376
048c6e89 SG	377	config SPL_LZ4
	378	bool "Enable LZ4 decompression support in SPL"
	379	help
	380	This enables support for tge LZ4 decompression algorithm in SPL. LZ4
	381	is a lossless data compression algorithm that is focused on
	382	fast compression and decompression speed. It belongs to the LZ77
	383	family of byte-oriented compression schemes.
	384
f52bdf4b JJH	385	config SPL_LZO
	386	bool "Enable LZO decompression support in SPL"
	387	help
	388	This enables support for LZO compression algorithm in the SPL.
	389
7264f292 YS	390	config SPL_GZIP
	391	bool "Enable gzip decompression support for SPL build"
	392	select SPL_ZLIB
	393	help
	394	This enables support for GZIP compression altorithm for SPL boot.
	395
	396	config SPL_ZLIB
	397	bool
	398	help
	399	This enables compression lib for SPL boot.
	400
027b728d JW	401	endmenu
027b728d JW	402
6501ff62 PM	403	config ERRNO_STR
	404	bool "Enable function for getting errno-related string message"
	405	help
	406	The function errno_str(int errno), returns a pointer to the errno
	407	corresponding text message:
	408	- if errno is null or positive number - a pointer to "Success" message
	409	- if errno is negative - a pointer to errno related message
	410
f8c987f8 AB	411	config HEXDUMP
	412	bool "Enable hexdump"
	413	help
	414	This enables functions for printing dumps of binary data.
	415
69e173eb SG	416	config OF_LIBFDT
	417	bool "Enable the FDT library"
	418	default y if OF_CONTROL
	419	help
	420	This enables the FDT library (libfdt). It provides functions for
	421	accessing binary device tree images in memory, such as adding and
f1a7ba1d	422	removing nodes and properties, scanning through the tree and finding
69e173eb SG	423	particular compatible nodes. The library operates on a flattened
	424	version of the device tree.
	425
ddf67f71 MR	426	config OF_LIBFDT_OVERLAY
ddf67f71 MR	427	bool "Enable the FDT library overlay support"
6417572e	428	depends on OF_LIBFDT
58a46f88	429	default y if ARCH_OMAP2PLUS \|\| ARCH_KEYSTONE
ddf67f71 MR	430	help
	431	This enables the FDT library (libfdt) overlay support.
	432
aa34fbc0 SG	433	config SPL_OF_LIBFDT
	434	bool "Enable the FDT library for SPL"
	435	default y if SPL_OF_CONTROL
	436	help
	437	This enables the FDT library (libfdt). It provides functions for
	438	accessing binary device tree images in memory, such as adding and
f1a7ba1d	439	removing nodes and properties, scanning through the tree and finding
aa34fbc0 SG	440	particular compatible nodes. The library operates on a flattened
	441	version of the device tree.
	442
5592a633 SG	443	config TPL_OF_LIBFDT
	444	bool "Enable the FDT library for TPL"
	445	default y if TPL_OF_CONTROL
	446	help
	447	This enables the FDT library (libfdt). It provides functions for
	448	accessing binary device tree images in memory, such as adding and
	449	removing nodes and properties, scanning through the tree and finding
	450	particular compatible nodes. The library operates on a flattened
	451	version of the device tree.
	452
ebf7fff2 HS	453	config FDT_FIXUP_PARTITIONS
	454	bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
	455	depends on OF_LIBFDT
ab948cd2	456	depends on CMD_MTDPARTS
ebf7fff2 HS	457	help
	458	Allow overwriting defined partitions in the device tree blob
	459	using partition info defined in the 'mtdparts' environment
	460	variable.
	461
4b6dddc2	462	menu "System tables"
e663b350	463	depends on (!EFI && !SYS_COREBOOT) \|\| (ARM && EFI_LOADER)
4b6dddc2 AG	464
	465	config GENERATE_SMBIOS_TABLE
	466	bool "Generate an SMBIOS (System Management BIOS) table"
	467	default y
e663b350	468	depends on X86 \|\| EFI_LOADER
4b6dddc2 AG	469	help
	470	The System Management BIOS (SMBIOS) specification addresses how
	471	motherboard and system vendors present management information about
	472	their products in a standard format by extending the BIOS interface
	473	on Intel architecture systems.
	474
	475	Check http://www.dmtf.org/standards/smbios for details.
	476
	477	config SMBIOS_MANUFACTURER
	478	string "SMBIOS Manufacturer"
	479	depends on GENERATE_SMBIOS_TABLE
	480	default SYS_VENDOR
	481	help
	482	The board manufacturer to store in SMBIOS structures.
	483	Change this to override the default one (CONFIG_SYS_VENDOR).
	484
	485	config SMBIOS_PRODUCT_NAME
	486	string "SMBIOS Product Name"
	487	depends on GENERATE_SMBIOS_TABLE
	488	default SYS_BOARD
	489	help
	490	The product name to store in SMBIOS structures.
	491	Change this to override the default one (CONFIG_SYS_BOARD).
	492
	493	endmenu
	494
867a6ac8	495	source lib/efi/Kconfig
ed980b8c	496	source lib/efi_loader/Kconfig
32ce6179	497	source lib/optee/Kconfig
867a6ac8	498
54969b40 TR	499	config TEST_FDTDEC
	500	bool "enable fdtdec test"
	501	depends on OF_LIBFDT
	502
ed36323f	503	endmenu