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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
Hans de Goede9f823612016-06-20 23:16:28 +020060 default n
Tom Rinia391d502016-08-12 08:31:17 -040061 select CMD_BOOTZ if ARM && !ARM64
Masahiro Yamada26959272016-08-12 08:31:16 -040062 select CMD_BOOTI if ARM64
Hans de Goede9f823612016-06-20 23:16:28 +020063 select CMD_DHCP
64 select CMD_EXT2
65 select CMD_EXT4
66 select CMD_FAT
67 select CMD_FS_GENERIC
68 select CMD_MII
69 select CMD_PING
70 select HUSH_PARSER
71 help
72 Select this to enable various options and commands which are suitable
73 for building u-boot for booting general purpose Linux distributions.
74
Simon Glassb724bd72015-02-11 16:32:59 -070075config SYS_MALLOC_F
76 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +090077 default y if DM
Simon Glassb724bd72015-02-11 16:32:59 -070078 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -040079 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -070080 we can provide a small malloc() pool if needed. Driver model in
81 particular needs this to operate, so that it can allocate the
82 initial serial device and any others that are needed.
83
84config SYS_MALLOC_F_LEN
85 hex "Size of malloc() pool before relocation"
86 depends on SYS_MALLOC_F
87 default 0x400
88 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -040089 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -070090 we can provide a small malloc() pool if needed. Driver model in
91 particular needs this to operate, so that it can allocate the
92 initial serial device and any others that are needed.
93
Tom Rini1bf09792014-11-14 09:34:29 +010094menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +010095 bool "Configure standard U-Boot features (expert users)"
96 default y
97 help
98 This option allows certain base U-Boot options and settings
99 to be disabled or tweaked. This is for specialized
100 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400101 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100102
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100103if EXPERT
104 config SYS_MALLOC_CLEAR_ON_INIT
105 bool "Init with zeros the memory reserved for malloc (slow)"
106 default y
107 help
108 This setting is enabled by default. The reserved malloc
109 memory is initialized with zeros, so first malloc calls
110 will return the pointer to the zeroed memory. But this
111 slows the boot time.
112
113 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
114 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
115 Then the boot time can be significantly reduced.
116 Warning:
117 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400118 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600119
120config TOOLS_DEBUG
121 bool "Enable debug information for tools"
122 help
123 Enable generation of debug information for tools such as mkimage.
124 This can be used for debugging purposes. With debug information
125 it is possible to set breakpoints on particular lines, single-step
126 debug through the source code, etc.
127
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100128endif
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900129
130config PHYS_64BIT
131 bool "64bit physical address support"
132 help
133 Say Y here to support 64bit physical memory address.
134 This can be used not only for 64bit SoCs, but also for
135 large physical address extention on 32bit SoCs.
136
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900137endmenu # General setup
138
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900139menu "Boot images"
140
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900141config FIT
142 bool "Support Flattened Image Tree"
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900143 help
144 This option allows to boot the new uImage structrure,
145 Flattened Image Tree. FIT is formally a FDT, which can include
146 images of various types (kernel, FDT blob, ramdisk, etc.)
147 in a single blob. To boot this new uImage structure,
Igor Grinberg1f9ac4a2015-08-26 17:54:45 +0300148 pass the address of the blob to the "bootm" command.
Simon Glass73223f02016-02-22 22:55:43 -0700149 FIT is very flexible, supporting compression, multiple images,
150 multiple configurations, verification through hashing and also
151 verified boot (secure boot using RSA). This option enables that
152 feature.
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900153
Teddy Reed51c14cd2016-06-09 19:18:44 -0700154config SPL_FIT
155 bool "Support Flattened Image Tree within SPL"
156 depends on FIT
157 depends on SPL
158
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900159config FIT_VERBOSE
160 bool "Display verbose messages on FIT boot"
161 depends on FIT
162
163config FIT_SIGNATURE
Ruchika Guptac4beb222015-01-23 16:01:51 +0530164 bool "Enable signature verification of FIT uImages"
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900165 depends on FIT
Chris Kuethe90097982015-02-04 19:16:14 -0800166 depends on DM
Ruchika Guptac4beb222015-01-23 16:01:51 +0530167 select RSA
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900168 help
169 This option enables signature verification of FIT uImages,
gaurav rana94e3c8c2015-02-20 12:51:46 +0530170 using a hash signed and verified using RSA. If
171 CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
Simon Glass73223f02016-02-22 22:55:43 -0700172 hashing is available using hardware, then then RSA library will use
173 it. See doc/uImage.FIT/signature.txt for more details.
174
175 WARNING: When relying on signed FIT images with a required signature
176 check the legacy image format is disabled by default, so that
177 unsigned images cannot be loaded. If a board needs the legacy image
178 format support in this case, enable it using
179 CONFIG_IMAGE_FORMAT_LEGACY.
180
Teddy Reed51c14cd2016-06-09 19:18:44 -0700181config SPL_FIT_SIGNATURE
182 bool "Enable signature verification of FIT firmware within SPL"
183 depends on SPL_FIT
184 depends on SPL_DM
185 select SPL_RSA
186
Simon Glass73223f02016-02-22 22:55:43 -0700187config FIT_BEST_MATCH
188 bool "Select the best match for the kernel device tree"
189 depends on FIT
190 help
191 When no configuration is explicitly selected, default to the
192 one whose fdt's compatibility field best matches that of
193 U-Boot itself. A match is considered "best" if it matches the
194 most specific compatibility entry of U-Boot's fdt's root node.
195 The order of entries in the configuration's fdt is ignored.
196
197config FIT_VERBOSE
198 bool "Show verbose messages when FIT images fails"
199 depends on FIT
200 help
201 Generally a system will have valid FIT images so debug messages
202 are a waste of code space. If you are debugging your images then
203 you can enable this option to get more verbose information about
204 failures.
205
206config OF_BOARD_SETUP
207 bool "Set up board-specific details in device tree before boot"
208 depends on OF_LIBFDT
209 help
210 This causes U-Boot to call ft_board_setup() before booting into
211 the Operating System. This function can set up various
212 board-specific information in the device tree for use by the OS.
213 The device tree is then passed to the OS.
214
215config OF_SYSTEM_SETUP
216 bool "Set up system-specific details in device tree before boot"
217 depends on OF_LIBFDT
218 help
219 This causes U-Boot to call ft_system_setup() before booting into
220 the Operating System. This function can set up various
221 system-specific information in the device tree for use by the OS.
222 The device tree is then passed to the OS.
223
224config OF_STDOUT_VIA_ALIAS
225 bool "Update the device-tree stdout alias from U-Boot"
226 depends on OF_LIBFDT
227 help
228 This uses U-Boot's serial alias from the aliases node to update
229 the device tree passed to the OS. The "linux,stdout-path" property
230 in the chosen node is set to point to the correct serial node.
231 This option currently references CONFIG_CONS_INDEX, which is
232 incorrect when used with device tree as this option does not
233 exist / should not be used.
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900234
Masahiro Yamada51631252014-07-30 14:08:15 +0900235config SYS_EXTRA_OPTIONS
236 string "Extra Options (DEPRECATED)"
Masahiro Yamada51631252014-07-30 14:08:15 +0900237 help
238 The old configuration infrastructure (= mkconfig + boards.cfg)
Masahiro Yamadaed363232014-09-16 16:32:58 +0900239 provided the extra options field. If you have something like
Masahiro Yamada51631252014-07-30 14:08:15 +0900240 "HAS_BAR,BAZ=64", the optional options
241 #define CONFIG_HAS
242 #define CONFIG_BAZ 64
243 will be defined in include/config.h.
244 This option was prepared for the smooth migration from the old
245 configuration to Kconfig. Since this option will be removed sometime,
246 new boards should not use this option.
247
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900248config SYS_TEXT_BASE
Masahiro Yamadac6e18142015-12-11 12:22:24 +0900249 depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \
Paul Burtonec35e122016-05-17 11:56:39 +0100250 (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE || MIPS
Ben Stoltz484cce02015-08-04 12:33:41 -0600251 depends on !EFI_APP
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900252 hex "Text Base"
253 help
254 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
255
Simon Glassf1dcee52016-02-22 22:55:56 -0700256config SPL_LOAD_FIT
257 bool "Enable SPL loading U-Boot as a FIT"
258 depends on FIT
259 help
260 Normally with the SPL framework a legacy image is generated as part
261 of the build. This contains U-Boot along with information as to
262 where it should be loaded. This option instead enables generation
263 of a FIT (Flat Image Tree) which provides more flexibility. In
264 particular it can handle selecting from multiple device tree
265 and passing the correct one to U-Boot.
266
Daniel Allredda74d1f2016-06-27 09:19:21 -0500267config SPL_FIT_IMAGE_POST_PROCESS
268 bool "Enable post-processing of FIT artifacts after loading by the SPL"
269 depends on SPL_LOAD_FIT && TI_SECURE_DEVICE
270 help
271 Allows doing any sort of manipulation to blobs after they got extracted
272 from the U-Boot FIT image like stripping off headers or modifying the
273 size of the blob, verification, authentication, decryption etc. in a
274 platform or board specific way. In order to use this feature a platform
275 or board-specific implementation of board_fit_image_post_process() must
276 be provided. Also, anything done during this post-processing step would
277 need to be comprehended in how the images were prepared before being
278 injected into the FIT creation (i.e. the blobs would have been pre-
279 processed before being added to the FIT image).
280
Andreas Dannenbergeba3fbd2016-07-27 12:12:39 -0500281config FIT_IMAGE_POST_PROCESS
282 bool "Enable post-processing of FIT artifacts after loading by U-Boot"
283 depends on FIT && TI_SECURE_DEVICE
284 help
285 Allows doing any sort of manipulation to blobs after they got extracted
286 from FIT images like stripping off headers or modifying the size of the
287 blob, verification, authentication, decryption etc. in a platform or
288 board specific way. In order to use this feature a platform or board-
289 specific implementation of board_fit_image_post_process() must be
290 provided. Also, anything done during this post-processing step would
291 need to be comprehended in how the images were prepared before being
292 injected into the FIT creation (i.e. the blobs would have been pre-
293 processed before being added to the FIT image).
294
Alexey Brodkin33d88182015-01-13 18:49:01 +0300295config SYS_CLK_FREQ
Iain Patone71b4222015-03-28 10:26:38 +0000296 depends on ARC || ARCH_SUNXI
Alexey Brodkin33d88182015-01-13 18:49:01 +0300297 int "CPU clock frequency"
298 help
299 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
300
Michal Simeke2f88df2016-07-28 09:06:41 +0200301config ARCH_FIXUP_FDT
302 bool "Enable arch_fixup_fdt() call"
303 depends on ARM || MIPS
304 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
Masahiro Yamadaed363232014-09-16 16:32:58 +0900312source "common/Kconfig"
313
Simon Glass72a8cf82016-01-17 20:53:51 -0700314source "cmd/Kconfig"
315
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900316source "dts/Kconfig"
317
Masahiro Yamadaed363232014-09-16 16:32:58 +0900318source "net/Kconfig"
319
320source "drivers/Kconfig"
321
322source "fs/Kconfig"
323
324source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700325
326source "test/Kconfig"