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Masahiro Yamada51631252014-07-30 14:08:15 +09001#
2# For a description of the syntax of this configuration file,
Robert P. J. Day59d7c342016-04-16 05:53:07 -04003# see the file Documentation/kbuild/kconfig-language.txt in the
4# Linux kernel source tree.
Masahiro Yamada51631252014-07-30 14:08:15 +09005#
6mainmenu "U-Boot $UBOOTVERSION Configuration"
7
8config UBOOTVERSION
9 string
10 option env="UBOOTVERSION"
11
Simon Glass66afaef2015-02-24 22:26:19 +090012# Allow defaults in arch-specific code to override any given here
13source "arch/Kconfig"
14
Masahiro Yamada51631252014-07-30 14:08:15 +090015menu "General setup"
16
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090017config LOCALVERSION
18 string "Local version - append to U-Boot release"
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090019 help
20 Append an extra string to the end of your U-Boot version.
Robert P. J. Day59d7c342016-04-16 05:53:07 -040021 This will show up in your boot log, for example.
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090022 The string you set here will be appended after the contents of
23 any files with a filename matching localversion* in your
24 object and source tree, in that order. Your total string can
25 be a maximum of 64 characters.
26
27config LOCALVERSION_AUTO
28 bool "Automatically append version information to the version string"
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090029 default y
30 help
31 This will try to automatically determine if the current tree is a
Robert P. J. Day59d7c342016-04-16 05:53:07 -040032 release tree by looking for Git tags that belong to the current
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090033 top of tree revision.
34
35 A string of the format -gxxxxxxxx will be added to the localversion
Robert P. J. Day59d7c342016-04-16 05:53:07 -040036 if a Git-based tree is found. The string generated by this will be
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090037 appended after any matching localversion* files, and after the value
38 set in CONFIG_LOCALVERSION.
39
40 (The actual string used here is the first eight characters produced
41 by running the command:
42
43 $ git rev-parse --verify HEAD
44
45 which is done within the script "scripts/setlocalversion".)
46
Masahiro Yamada4a8ed8e2014-08-22 19:42:29 +090047config CC_OPTIMIZE_FOR_SIZE
48 bool "Optimize for size"
Masahiro Yamada4a8ed8e2014-08-22 19:42:29 +090049 default y
50 help
51 Enabling this option will pass "-Os" instead of "-O2" to gcc
52 resulting in a smaller U-Boot image.
53
54 This option is enabled by default for U-Boot.
55
Hans de Goede9f823612016-06-20 23:16:28 +020056config DISTRO_DEFAULTS
57 bool "Select defaults suitable for booting general purpose Linux distributions"
Tom Rini3337e3a2016-11-29 09:14:57 -050058 default y if ARCH_SUNXI || TEGRA
Alexander Grafb99ebaf2016-11-17 01:03:02 +010059 default y if ARCH_LS2080A
Andreas Färber70b8bd72017-01-15 20:22:30 +010060 default y if ARCH_MESON
Romain Perier7bdedf12017-01-11 11:46:14 +010061 default y if ARCH_ROCKCHIP
Hans de Goede9f823612016-06-20 23:16:28 +020062 default n
Tom Rinia391d502016-08-12 08:31:17 -040063 select CMD_BOOTZ if ARM && !ARM64
Masahiro Yamada26959272016-08-12 08:31:16 -040064 select CMD_BOOTI if ARM64
Hans de Goede9f823612016-06-20 23:16:28 +020065 select CMD_DHCP
Yann E. MORINbfb380b2016-11-13 21:59:52 +010066 select CMD_PXE
Hans de Goede9f823612016-06-20 23:16:28 +020067 select CMD_EXT2
68 select CMD_EXT4
69 select CMD_FAT
70 select CMD_FS_GENERIC
71 select CMD_MII
72 select CMD_PING
Patrick Delaunayb331cd62017-01-27 11:00:42 +010073 select CMD_PART
Hans de Goede9f823612016-06-20 23:16:28 +020074 select HUSH_PARSER
75 help
76 Select this to enable various options and commands which are suitable
77 for building u-boot for booting general purpose Linux distributions.
78
Simon Glassb724bd72015-02-11 16:32:59 -070079config SYS_MALLOC_F
80 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +090081 default y if DM
Simon Glassb724bd72015-02-11 16:32:59 -070082 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -040083 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -070084 we can provide a small malloc() pool if needed. Driver model in
85 particular needs this to operate, so that it can allocate the
86 initial serial device and any others that are needed.
87
88config SYS_MALLOC_F_LEN
89 hex "Size of malloc() pool before relocation"
90 depends on SYS_MALLOC_F
91 default 0x400
92 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -040093 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -070094 we can provide a small malloc() pool if needed. Driver model in
95 particular needs this to operate, so that it can allocate the
96 initial serial device and any others that are needed.
97
Tom Rini1bf09792014-11-14 09:34:29 +010098menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +010099 bool "Configure standard U-Boot features (expert users)"
100 default y
101 help
102 This option allows certain base U-Boot options and settings
103 to be disabled or tweaked. This is for specialized
104 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400105 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100106
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100107if EXPERT
108 config SYS_MALLOC_CLEAR_ON_INIT
109 bool "Init with zeros the memory reserved for malloc (slow)"
110 default y
111 help
112 This setting is enabled by default. The reserved malloc
113 memory is initialized with zeros, so first malloc calls
114 will return the pointer to the zeroed memory. But this
115 slows the boot time.
116
117 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
118 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
119 Then the boot time can be significantly reduced.
120 Warning:
121 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400122 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600123
124config TOOLS_DEBUG
125 bool "Enable debug information for tools"
126 help
127 Enable generation of debug information for tools such as mkimage.
128 This can be used for debugging purposes. With debug information
129 it is possible to set breakpoints on particular lines, single-step
130 debug through the source code, etc.
131
Robert P. J. Day266aa862017-01-02 16:32:13 -0500132endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900133
134config PHYS_64BIT
135 bool "64bit physical address support"
136 help
137 Say Y here to support 64bit physical memory address.
138 This can be used not only for 64bit SoCs, but also for
139 large physical address extention on 32bit SoCs.
140
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900141endmenu # General setup
142
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900143menu "Boot images"
144
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900145config FIT
146 bool "Support Flattened Image Tree"
Andre Przywaraaeb9c532017-03-15 01:19:06 +0000147 select MD5
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900148 help
Robert P. J. Day266aa862017-01-02 16:32:13 -0500149 This option allows you to boot the new uImage structure,
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900150 Flattened Image Tree. FIT is formally a FDT, which can include
151 images of various types (kernel, FDT blob, ramdisk, etc.)
152 in a single blob. To boot this new uImage structure,
Igor Grinberg1f9ac4a2015-08-26 17:54:45 +0300153 pass the address of the blob to the "bootm" command.
Simon Glass73223f02016-02-22 22:55:43 -0700154 FIT is very flexible, supporting compression, multiple images,
155 multiple configurations, verification through hashing and also
Robert P. J. Day266aa862017-01-02 16:32:13 -0500156 verified boot (secure boot using RSA).
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900157
Robert P. J. Day266aa862017-01-02 16:32:13 -0500158if FIT
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900159
160config FIT_SIGNATURE
Ruchika Guptac4beb222015-01-23 16:01:51 +0530161 bool "Enable signature verification of FIT uImages"
Chris Kuethe90097982015-02-04 19:16:14 -0800162 depends on DM
Ruchika Guptac4beb222015-01-23 16:01:51 +0530163 select RSA
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900164 help
165 This option enables signature verification of FIT uImages,
gaurav rana94e3c8c2015-02-20 12:51:46 +0530166 using a hash signed and verified using RSA. If
167 CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
Robert P. J. Day266aa862017-01-02 16:32:13 -0500168 hashing is available using hardware, then the RSA library will use
Simon Glass73223f02016-02-22 22:55:43 -0700169 it. See doc/uImage.FIT/signature.txt for more details.
170
171 WARNING: When relying on signed FIT images with a required signature
172 check the legacy image format is disabled by default, so that
173 unsigned images cannot be loaded. If a board needs the legacy image
174 format support in this case, enable it using
175 CONFIG_IMAGE_FORMAT_LEGACY.
176
Robert P. J. Day266aa862017-01-02 16:32:13 -0500177config FIT_VERBOSE
178 bool "Show verbose messages when FIT images fail"
179 help
180 Generally a system will have valid FIT images so debug messages
181 are a waste of code space. If you are debugging your images then
182 you can enable this option to get more verbose information about
183 failures.
Teddy Reed51c14cd2016-06-09 19:18:44 -0700184
Simon Glass73223f02016-02-22 22:55:43 -0700185config FIT_BEST_MATCH
186 bool "Select the best match for the kernel device tree"
Simon Glass73223f02016-02-22 22:55:43 -0700187 help
188 When no configuration is explicitly selected, default to the
189 one whose fdt's compatibility field best matches that of
190 U-Boot itself. A match is considered "best" if it matches the
191 most specific compatibility entry of U-Boot's fdt's root node.
192 The order of entries in the configuration's fdt is ignored.
193
Robert P. J. Day266aa862017-01-02 16:32:13 -0500194config FIT_IMAGE_POST_PROCESS
195 bool "Enable post-processing of FIT artifacts after loading by U-Boot"
196 depends on TI_SECURE_DEVICE
Simon Glass73223f02016-02-22 22:55:43 -0700197 help
Robert P. J. Day266aa862017-01-02 16:32:13 -0500198 Allows doing any sort of manipulation to blobs after they got extracted
199 from FIT images like stripping off headers or modifying the size of the
200 blob, verification, authentication, decryption etc. in a platform or
201 board specific way. In order to use this feature a platform or board-
202 specific implementation of board_fit_image_post_process() must be
203 provided. Also, anything done during this post-processing step would
204 need to be comprehended in how the images were prepared before being
205 injected into the FIT creation (i.e. the blobs would have been pre-
206 processed before being added to the FIT image).
207
208config SPL_FIT
209 bool "Support Flattened Image Tree within SPL"
210 depends on SPL
211
212config SPL_FIT_SIGNATURE
213 bool "Enable signature verification of FIT firmware within SPL"
214 depends on SPL_FIT
215 depends on SPL_DM
216 select SPL_RSA
217
218config SPL_LOAD_FIT
219 bool "Enable SPL loading U-Boot as a FIT"
220 help
221 Normally with the SPL framework a legacy image is generated as part
222 of the build. This contains U-Boot along with information as to
223 where it should be loaded. This option instead enables generation
224 of a FIT (Flat Image Tree) which provides more flexibility. In
225 particular it can handle selecting from multiple device tree
226 and passing the correct one to U-Boot.
227
228config SPL_FIT_IMAGE_POST_PROCESS
229 bool "Enable post-processing of FIT artifacts after loading by the SPL"
230 depends on SPL_LOAD_FIT && TI_SECURE_DEVICE
231 help
232 Allows doing any sort of manipulation to blobs after they got extracted
233 from the U-Boot FIT image like stripping off headers or modifying the
234 size of the blob, verification, authentication, decryption etc. in a
235 platform or board specific way. In order to use this feature a platform
236 or board-specific implementation of board_fit_image_post_process() must
237 be provided. Also, anything done during this post-processing step would
238 need to be comprehended in how the images were prepared before being
239 injected into the FIT creation (i.e. the blobs would have been pre-
240 processed before being added to the FIT image).
241
242endif # FIT
Simon Glass73223f02016-02-22 22:55:43 -0700243
244config OF_BOARD_SETUP
245 bool "Set up board-specific details in device tree before boot"
246 depends on OF_LIBFDT
247 help
248 This causes U-Boot to call ft_board_setup() before booting into
249 the Operating System. This function can set up various
250 board-specific information in the device tree for use by the OS.
251 The device tree is then passed to the OS.
252
253config OF_SYSTEM_SETUP
254 bool "Set up system-specific details in device tree before boot"
255 depends on OF_LIBFDT
256 help
257 This causes U-Boot to call ft_system_setup() before booting into
258 the Operating System. This function can set up various
259 system-specific information in the device tree for use by the OS.
260 The device tree is then passed to the OS.
261
262config OF_STDOUT_VIA_ALIAS
263 bool "Update the device-tree stdout alias from U-Boot"
264 depends on OF_LIBFDT
265 help
266 This uses U-Boot's serial alias from the aliases node to update
267 the device tree passed to the OS. The "linux,stdout-path" property
268 in the chosen node is set to point to the correct serial node.
269 This option currently references CONFIG_CONS_INDEX, which is
270 incorrect when used with device tree as this option does not
271 exist / should not be used.
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900272
Masahiro Yamada51631252014-07-30 14:08:15 +0900273config SYS_EXTRA_OPTIONS
274 string "Extra Options (DEPRECATED)"
Masahiro Yamada51631252014-07-30 14:08:15 +0900275 help
276 The old configuration infrastructure (= mkconfig + boards.cfg)
Masahiro Yamadaed363232014-09-16 16:32:58 +0900277 provided the extra options field. If you have something like
Masahiro Yamada51631252014-07-30 14:08:15 +0900278 "HAS_BAR,BAZ=64", the optional options
279 #define CONFIG_HAS
280 #define CONFIG_BAZ 64
281 will be defined in include/config.h.
282 This option was prepared for the smooth migration from the old
283 configuration to Kconfig. Since this option will be removed sometime,
284 new boards should not use this option.
285
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900286config SYS_TEXT_BASE
Masahiro Yamadac6e18142015-12-11 12:22:24 +0900287 depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \
Michal Simek6ebf8a42016-12-16 11:57:17 +0100288 (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE || MIPS || \
289 ARCH_ZYNQ
Ben Stoltz484cce02015-08-04 12:33:41 -0600290 depends on !EFI_APP
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900291 hex "Text Base"
292 help
293 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
294
Andreas Dannenbergeba3fbd2016-07-27 12:12:39 -0500295
Alexey Brodkin33d88182015-01-13 18:49:01 +0300296config SYS_CLK_FREQ
Iain Patone71b4222015-03-28 10:26:38 +0000297 depends on ARC || ARCH_SUNXI
Alexey Brodkin33d88182015-01-13 18:49:01 +0300298 int "CPU clock frequency"
299 help
300 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
301
Masahiro Yamada63c09412016-11-26 11:02:10 +0900302config ARCH_FIXUP_FDT_MEMORY
303 bool "Enable arch_fixup_memory_banks() call"
Michal Simeke2f88df2016-07-28 09:06:41 +0200304 default y
305 help
306 Enable FDT memory map syncup before OS boot. This feature can be
307 used for booting OS with different memory setup where the part of
308 the memory location should be used for different purpose.
309
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900310endmenu # Boot images
Masahiro Yamada51631252014-07-30 14:08:15 +0900311
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100312source "api/Kconfig"
313
Masahiro Yamadaed363232014-09-16 16:32:58 +0900314source "common/Kconfig"
315
Simon Glass72a8cf82016-01-17 20:53:51 -0700316source "cmd/Kconfig"
317
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100318source "disk/Kconfig"
319
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900320source "dts/Kconfig"
321
Masahiro Yamadaed363232014-09-16 16:32:58 +0900322source "net/Kconfig"
323
324source "drivers/Kconfig"
325
326source "fs/Kconfig"
327
328source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700329
330source "test/Kconfig"
Masahiro Yamada61304db2017-01-30 11:12:07 +0900331
332source "scripts/Kconfig"