xref: /openbmc/u-boot/lib/Kconfig (revision beb4d65e) 
1menu "Library routines"
2
3config CC_OPTIMIZE_LIBS_FOR_SPEED
4	bool "Optimize libraries for speed"
5	help
6	  Enabling this option will pass "-O2" to gcc when compiling
7	  under "lib" directory.
8
9	  If unsure, say N.
10
11config HAVE_PRIVATE_LIBGCC
12	bool
13
14config USE_PRIVATE_LIBGCC
15	bool "Use private libgcc"
16	depends on HAVE_PRIVATE_LIBGCC
17	default y if HAVE_PRIVATE_LIBGCC && ((ARM && !ARM64) || MIPS)
18	help
19	  This option allows you to use the built-in libgcc implementation
20	  of U-Boot instead of the one provided by the compiler.
21	  If unsure, say N.
22
23config SYS_HZ
24	int
25	default 1000
26	help
27	  The frequency of the timer returned by get_timer().
28	  get_timer() must operate in milliseconds and this option must be
29	  set to 1000.
30
31config USE_TINY_PRINTF
32	bool "Enable tiny printf() version"
33	help
34	  This option enables a tiny, stripped down printf version.
35	  This should only be used in space limited environments,
36	  like SPL versions with hard memory limits. This version
37	  reduces the code size by about 2.5KiB on armv7.
38
39	  The supported format specifiers are %c, %s, %u/%d and %x.
40
41config REGEX
42	bool "Enable regular expression support"
43	default y if NET
44	help
45	  If this variable is defined, U-Boot is linked against the
46	  SLRE (Super Light Regular Expression) library, which adds
47	  regex support to some commands, for example "env grep" and
48	  "setexpr".
49
50config LIB_RAND
51	bool "Pseudo-random library support "
52	help
53	  This library provides pseudo-random number generator functions.
54
55source lib/dhry/Kconfig
56
57source lib/rsa/Kconfig
58
59config TPM
60	bool "Trusted Platform Module (TPM) Support"
61	depends on DM
62	help
63	  This enables support for TPMs which can be used to provide security
64	  features for your board. The TPM can be connected via LPC or I2C
65	  and a sandbox TPM is provided for testing purposes. Use the 'tpm'
66	  command to interactive the TPM. Driver model support is provided
67	  for the low-level TPM interface, but only one TPM is supported at
68	  a time by the TPM library.
69
70menu "Hashing Support"
71
72config SHA1
73	bool "Enable SHA1 support"
74	help
75	  This option enables support of hashing using SHA1 algorithm.
76	  The hash is calculated in software.
77	  The SHA1 algorithm produces a 160-bit (20-byte) hash value
78	  (digest).
79
80config SHA256
81	bool "Enable SHA256 support"
82	help
83	  This option enables support of hashing using SHA256 algorithm.
84	  The hash is calculated in software.
85	  The SHA256 algorithm produces a 256-bit (32-byte) hash value
86	  (digest).
87
88config SHA_HW_ACCEL
89	bool "Enable hashing using hardware"
90	help
91	  This option enables hardware acceleration
92	  for SHA1/SHA256 hashing.
93	  This affects the 'hash' command and also the
94	  hash_lookup_algo() function.
95
96config SHA_PROG_HW_ACCEL
97	bool "Enable Progressive hashing support using hardware"
98	depends on SHA_HW_ACCEL
99	help
100	  This option enables hardware-acceleration for
101	  SHA1/SHA256 progressive hashing.
102	  Data can be streamed in a block at a time and the hashing
103	  is performed in hardware.
104endmenu
105
106menu "Compression Support"
107
108config LZ4
109	bool "Enable LZ4 decompression support"
110	help
111	  If this option is set, support for LZ4 compressed images
112	  is included. The LZ4 algorithm can run in-place as long as the
113	  compressed image is loaded to the end of the output buffer, and
114	  trades lower compression ratios for much faster decompression.
115
116	  NOTE: This implements the release version of the LZ4 frame
117	  format as generated by default by the 'lz4' command line tool.
118	  This is not the same as the outdated, less efficient legacy
119	  frame format currently (2015) implemented in the Linux kernel
120	  (generated by 'lz4 -l'). The two formats are incompatible.
121
122endmenu
123
124config ERRNO_STR
125	bool "Enable function for getting errno-related string message"
126	help
127	  The function errno_str(int errno), returns a pointer to the errno
128	  corresponding text message:
129	  - if errno is null or positive number - a pointer to "Success" message
130	  - if errno is negative - a pointer to errno related message
131
132config OF_LIBFDT
133	bool "Enable the FDT library"
134	default y if OF_CONTROL
135	help
136	  This enables the FDT library (libfdt). It provides functions for
137	  accessing binary device tree images in memory, such as adding and
138	  removing notes and properties, scanning through the tree and finding
139	  particular compatible nodes. The library operates on a flattened
140	  version of the device tree.
141
142config OF_LIBFDT_OVERLAY
143	bool "Enable the FDT library overlay support"
144	help
145	  This enables the FDT library (libfdt) overlay support.
146
147config SPL_OF_LIBFDT
148	bool "Enable the FDT library for SPL"
149	default y if SPL_OF_CONTROL
150	help
151	  This enables the FDT library (libfdt). It provides functions for
152	  accessing binary device tree images in memory, such as adding and
153	  removing notes and properties, scanning through the tree and finding
154	  particular compatible nodes. The library operates on a flattened
155	  version of the device tree.
156
157config FDT_FIXUP_PARTITIONS
158	bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
159	depends on OF_LIBFDT
160	default n
161	help
162	  Allow overwriting defined partitions in the device tree blob
163	  using partition info defined in the 'mtdparts' environment
164	  variable.
165
166menu "System tables"
167	depends on (!EFI && !SYS_COREBOOT) || (ARM && EFI_LOADER)
168
169config GENERATE_SMBIOS_TABLE
170	bool "Generate an SMBIOS (System Management BIOS) table"
171	default y
172	depends on X86 || EFI_LOADER
173	help
174	  The System Management BIOS (SMBIOS) specification addresses how
175	  motherboard and system vendors present management information about
176	  their products in a standard format by extending the BIOS interface
177	  on Intel architecture systems.
178
179	  Check http://www.dmtf.org/standards/smbios for details.
180
181config SMBIOS_MANUFACTURER
182	string "SMBIOS Manufacturer"
183	depends on GENERATE_SMBIOS_TABLE
184	default SYS_VENDOR
185	help
186	  The board manufacturer to store in SMBIOS structures.
187	  Change this to override the default one (CONFIG_SYS_VENDOR).
188
189config SMBIOS_PRODUCT_NAME
190	string "SMBIOS Product Name"
191	depends on GENERATE_SMBIOS_TABLE
192	default SYS_BOARD
193	help
194	  The product name to store in SMBIOS structures.
195	  Change this to override the default one (CONFIG_SYS_BOARD).
196
197endmenu
198
199source lib/efi/Kconfig
200source lib/efi_loader/Kconfig
201
202endmenu
203