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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"
58 default y if ARCH_SUNXI
59 default n
Tom Rinia391d502016-08-12 08:31:17 -040060 select CMD_BOOTZ if ARM && !ARM64
Masahiro Yamada26959272016-08-12 08:31:16 -040061 select CMD_BOOTI if ARM64
Hans de Goede9f823612016-06-20 23:16:28 +020062 select CMD_DHCP
63 select CMD_EXT2
64 select CMD_EXT4
65 select CMD_FAT
66 select CMD_FS_GENERIC
67 select CMD_MII
68 select CMD_PING
69 select HUSH_PARSER
70 help
71 Select this to enable various options and commands which are suitable
72 for building u-boot for booting general purpose Linux distributions.
73
Simon Glassb724bd72015-02-11 16:32:59 -070074config SYS_MALLOC_F
75 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +090076 default y if DM
Simon Glassb724bd72015-02-11 16:32:59 -070077 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -040078 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -070079 we can provide a small malloc() pool if needed. Driver model in
80 particular needs this to operate, so that it can allocate the
81 initial serial device and any others that are needed.
82
83config SYS_MALLOC_F_LEN
84 hex "Size of malloc() pool before relocation"
85 depends on SYS_MALLOC_F
86 default 0x400
87 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -040088 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -070089 we can provide a small malloc() pool if needed. Driver model in
90 particular needs this to operate, so that it can allocate the
91 initial serial device and any others that are needed.
92
Tom Rini1bf09792014-11-14 09:34:29 +010093menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +010094 bool "Configure standard U-Boot features (expert users)"
95 default y
96 help
97 This option allows certain base U-Boot options and settings
98 to be disabled or tweaked. This is for specialized
99 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400100 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100101
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100102if EXPERT
103 config SYS_MALLOC_CLEAR_ON_INIT
104 bool "Init with zeros the memory reserved for malloc (slow)"
105 default y
106 help
107 This setting is enabled by default. The reserved malloc
108 memory is initialized with zeros, so first malloc calls
109 will return the pointer to the zeroed memory. But this
110 slows the boot time.
111
112 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
113 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
114 Then the boot time can be significantly reduced.
115 Warning:
116 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400117 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600118
119config TOOLS_DEBUG
120 bool "Enable debug information for tools"
121 help
122 Enable generation of debug information for tools such as mkimage.
123 This can be used for debugging purposes. With debug information
124 it is possible to set breakpoints on particular lines, single-step
125 debug through the source code, etc.
126
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100127endif
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900128
129config PHYS_64BIT
130 bool "64bit physical address support"
131 help
132 Say Y here to support 64bit physical memory address.
133 This can be used not only for 64bit SoCs, but also for
134 large physical address extention on 32bit SoCs.
135
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900136endmenu # General setup
137
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900138menu "Boot images"
139
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900140config FIT
141 bool "Support Flattened Image Tree"
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900142 help
143 This option allows to boot the new uImage structrure,
144 Flattened Image Tree. FIT is formally a FDT, which can include
145 images of various types (kernel, FDT blob, ramdisk, etc.)
146 in a single blob. To boot this new uImage structure,
Igor Grinberg1f9ac4a2015-08-26 17:54:45 +0300147 pass the address of the blob to the "bootm" command.
Simon Glass73223f02016-02-22 22:55:43 -0700148 FIT is very flexible, supporting compression, multiple images,
149 multiple configurations, verification through hashing and also
150 verified boot (secure boot using RSA). This option enables that
151 feature.
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900152
Teddy Reed51c14cd2016-06-09 19:18:44 -0700153config SPL_FIT
154 bool "Support Flattened Image Tree within SPL"
155 depends on FIT
156 depends on SPL
157
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900158config FIT_VERBOSE
159 bool "Display verbose messages on FIT boot"
160 depends on FIT
161
162config FIT_SIGNATURE
Ruchika Guptac4beb222015-01-23 16:01:51 +0530163 bool "Enable signature verification of FIT uImages"
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900164 depends on FIT
Chris Kuethe90097982015-02-04 19:16:14 -0800165 depends on DM
Ruchika Guptac4beb222015-01-23 16:01:51 +0530166 select RSA
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900167 help
168 This option enables signature verification of FIT uImages,
gaurav rana94e3c8c2015-02-20 12:51:46 +0530169 using a hash signed and verified using RSA. If
170 CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
Simon Glass73223f02016-02-22 22:55:43 -0700171 hashing is available using hardware, then then RSA library will use
172 it. See doc/uImage.FIT/signature.txt for more details.
173
174 WARNING: When relying on signed FIT images with a required signature
175 check the legacy image format is disabled by default, so that
176 unsigned images cannot be loaded. If a board needs the legacy image
177 format support in this case, enable it using
178 CONFIG_IMAGE_FORMAT_LEGACY.
179
Teddy Reed51c14cd2016-06-09 19:18:44 -0700180config SPL_FIT_SIGNATURE
181 bool "Enable signature verification of FIT firmware within SPL"
182 depends on SPL_FIT
183 depends on SPL_DM
184 select SPL_RSA
185
Simon Glass73223f02016-02-22 22:55:43 -0700186config FIT_BEST_MATCH
187 bool "Select the best match for the kernel device tree"
188 depends on FIT
189 help
190 When no configuration is explicitly selected, default to the
191 one whose fdt's compatibility field best matches that of
192 U-Boot itself. A match is considered "best" if it matches the
193 most specific compatibility entry of U-Boot's fdt's root node.
194 The order of entries in the configuration's fdt is ignored.
195
196config FIT_VERBOSE
197 bool "Show verbose messages when FIT images fails"
198 depends on FIT
199 help
200 Generally a system will have valid FIT images so debug messages
201 are a waste of code space. If you are debugging your images then
202 you can enable this option to get more verbose information about
203 failures.
204
205config OF_BOARD_SETUP
206 bool "Set up board-specific details in device tree before boot"
207 depends on OF_LIBFDT
208 help
209 This causes U-Boot to call ft_board_setup() before booting into
210 the Operating System. This function can set up various
211 board-specific information in the device tree for use by the OS.
212 The device tree is then passed to the OS.
213
214config OF_SYSTEM_SETUP
215 bool "Set up system-specific details in device tree before boot"
216 depends on OF_LIBFDT
217 help
218 This causes U-Boot to call ft_system_setup() before booting into
219 the Operating System. This function can set up various
220 system-specific information in the device tree for use by the OS.
221 The device tree is then passed to the OS.
222
223config OF_STDOUT_VIA_ALIAS
224 bool "Update the device-tree stdout alias from U-Boot"
225 depends on OF_LIBFDT
226 help
227 This uses U-Boot's serial alias from the aliases node to update
228 the device tree passed to the OS. The "linux,stdout-path" property
229 in the chosen node is set to point to the correct serial node.
230 This option currently references CONFIG_CONS_INDEX, which is
231 incorrect when used with device tree as this option does not
232 exist / should not be used.
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900233
Masahiro Yamada51631252014-07-30 14:08:15 +0900234config SYS_EXTRA_OPTIONS
235 string "Extra Options (DEPRECATED)"
Masahiro Yamada51631252014-07-30 14:08:15 +0900236 help
237 The old configuration infrastructure (= mkconfig + boards.cfg)
Masahiro Yamadaed363232014-09-16 16:32:58 +0900238 provided the extra options field. If you have something like
Masahiro Yamada51631252014-07-30 14:08:15 +0900239 "HAS_BAR,BAZ=64", the optional options
240 #define CONFIG_HAS
241 #define CONFIG_BAZ 64
242 will be defined in include/config.h.
243 This option was prepared for the smooth migration from the old
244 configuration to Kconfig. Since this option will be removed sometime,
245 new boards should not use this option.
246
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900247config SYS_TEXT_BASE
Masahiro Yamadac6e18142015-12-11 12:22:24 +0900248 depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \
Paul Burtonec35e122016-05-17 11:56:39 +0100249 (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE || MIPS
Ben Stoltz484cce02015-08-04 12:33:41 -0600250 depends on !EFI_APP
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900251 hex "Text Base"
252 help
253 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
254
Simon Glassf1dcee52016-02-22 22:55:56 -0700255config SPL_LOAD_FIT
256 bool "Enable SPL loading U-Boot as a FIT"
257 depends on FIT
258 help
259 Normally with the SPL framework a legacy image is generated as part
260 of the build. This contains U-Boot along with information as to
261 where it should be loaded. This option instead enables generation
262 of a FIT (Flat Image Tree) which provides more flexibility. In
263 particular it can handle selecting from multiple device tree
264 and passing the correct one to U-Boot.
265
Daniel Allredda74d1f2016-06-27 09:19:21 -0500266config SPL_FIT_IMAGE_POST_PROCESS
267 bool "Enable post-processing of FIT artifacts after loading by the SPL"
268 depends on SPL_LOAD_FIT && TI_SECURE_DEVICE
269 help
270 Allows doing any sort of manipulation to blobs after they got extracted
271 from the U-Boot FIT image like stripping off headers or modifying the
272 size of the blob, verification, authentication, decryption etc. in a
273 platform or board specific way. In order to use this feature a platform
274 or board-specific implementation of board_fit_image_post_process() must
275 be provided. Also, anything done during this post-processing step would
276 need to be comprehended in how the images were prepared before being
277 injected into the FIT creation (i.e. the blobs would have been pre-
278 processed before being added to the FIT image).
279
Andreas Dannenbergeba3fbd2016-07-27 12:12:39 -0500280config FIT_IMAGE_POST_PROCESS
281 bool "Enable post-processing of FIT artifacts after loading by U-Boot"
282 depends on FIT && TI_SECURE_DEVICE
283 help
284 Allows doing any sort of manipulation to blobs after they got extracted
285 from FIT images like stripping off headers or modifying the size of the
286 blob, verification, authentication, decryption etc. in a platform or
287 board specific way. In order to use this feature a platform or board-
288 specific implementation of board_fit_image_post_process() must be
289 provided. Also, anything done during this post-processing step would
290 need to be comprehended in how the images were prepared before being
291 injected into the FIT creation (i.e. the blobs would have been pre-
292 processed before being added to the FIT image).
293
Alexey Brodkin33d88182015-01-13 18:49:01 +0300294config SYS_CLK_FREQ
Iain Patone71b4222015-03-28 10:26:38 +0000295 depends on ARC || ARCH_SUNXI
Alexey Brodkin33d88182015-01-13 18:49:01 +0300296 int "CPU clock frequency"
297 help
298 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
299
Michal Simeke2f88df2016-07-28 09:06:41 +0200300config ARCH_FIXUP_FDT
301 bool "Enable arch_fixup_fdt() call"
302 depends on ARM || MIPS
303 default y
304 help
305 Enable FDT memory map syncup before OS boot. This feature can be
306 used for booting OS with different memory setup where the part of
307 the memory location should be used for different purpose.
308
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900309endmenu # Boot images
Masahiro Yamada51631252014-07-30 14:08:15 +0900310
Masahiro Yamadaed363232014-09-16 16:32:58 +0900311source "common/Kconfig"
312
Simon Glass72a8cf82016-01-17 20:53:51 -0700313source "cmd/Kconfig"
314
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900315source "dts/Kconfig"
316
Masahiro Yamadaed363232014-09-16 16:32:58 +0900317source "net/Kconfig"
318
319source "drivers/Kconfig"
320
321source "fs/Kconfig"
322
323source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700324
325source "test/Kconfig"