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Masahiro Yamada804bc5e2014-07-30 14:08:15 +09001#
2# For a description of the syntax of this configuration file,
Robert P. J. Day2f845be2016-04-16 05:53:07 -04003# see the file Documentation/kbuild/kconfig-language.txt in the
4# Linux kernel source tree.
Masahiro Yamada804bc5e2014-07-30 14:08:15 +09005#
6mainmenu "U-Boot $UBOOTVERSION Configuration"
7
8config UBOOTVERSION
9 string
10 option env="UBOOTVERSION"
11
Simon Glass157c3952015-02-24 22:26:19 +090012# Allow defaults in arch-specific code to override any given here
13source "arch/Kconfig"
14
Masahiro Yamada804bc5e2014-07-30 14:08:15 +090015menu "General setup"
16
Masahiro Yamada6ea06e62014-08-22 19:42:27 +090017config LOCALVERSION
18 string "Local version - append to U-Boot release"
Masahiro Yamada6ea06e62014-08-22 19:42:27 +090019 help
20 Append an extra string to the end of your U-Boot version.
Robert P. J. Day2f845be2016-04-16 05:53:07 -040021 This will show up in your boot log, for example.
Masahiro Yamada6ea06e62014-08-22 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 Yamada6ea06e62014-08-22 19:42:27 +090029 default y
30 help
31 This will try to automatically determine if the current tree is a
Robert P. J. Day2f845be2016-04-16 05:53:07 -040032 release tree by looking for Git tags that belong to the current
Masahiro Yamada6ea06e62014-08-22 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. Day2f845be2016-04-16 05:53:07 -040036 if a Git-based tree is found. The string generated by this will be
Masahiro Yamada6ea06e62014-08-22 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 Yamada8240a4b2014-08-22 19:42:29 +090047config CC_OPTIMIZE_FOR_SIZE
48 bool "Optimize for size"
Masahiro Yamada8240a4b2014-08-22 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 Goedef99c5cb2016-06-20 23:16:28 +020056config DISTRO_DEFAULTS
57 bool "Select defaults suitable for booting general purpose Linux distributions"
Tom Rini8db91cf2016-11-29 09:14:57 -050058 default y if ARCH_SUNXI || TEGRA
Alexander Graf39e4f242016-11-17 01:03:02 +010059 default y if ARCH_LS2080A
Andreas Färberd1296682017-01-15 20:22:30 +010060 default y if ARCH_MESON
Romain Perier91189342017-01-11 11:46:14 +010061 default y if ARCH_ROCKCHIP
Hans de Goedef99c5cb2016-06-20 23:16:28 +020062 default n
Tom Rini53b32702016-08-12 08:31:17 -040063 select CMD_BOOTZ if ARM && !ARM64
Masahiro Yamada04cf1552016-08-12 08:31:16 -040064 select CMD_BOOTI if ARM64
Hans de Goedef99c5cb2016-06-20 23:16:28 +020065 select CMD_DHCP
Yann E. MORIN0d10cdd2016-11-13 21:59:52 +010066 select CMD_PXE
Hans de Goedef99c5cb2016-06-20 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 Delaunay73287092017-01-27 11:00:42 +010073 select CMD_PART
Hans de Goedef99c5cb2016-06-20 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 Glass838723b2015-02-11 16:32:59 -070079config SYS_MALLOC_F
80 bool "Enable malloc() pool before relocation"
Masahiro Yamadac6988242015-03-19 19:42:55 +090081 default y if DM
Simon Glass838723b2015-02-11 16:32:59 -070082 help
Robert P. J. Day2f845be2016-04-16 05:53:07 -040083 Before relocation, memory is very limited on many platforms. Still,
Simon Glass838723b2015-02-11 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. Day2f845be2016-04-16 05:53:07 -040093 Before relocation, memory is very limited on many platforms. Still,
Simon Glass838723b2015-02-11 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 Rinia50d5b52014-11-14 09:34:29 +010098menuconfig EXPERT
Przemyslaw Marczak88436782015-03-04 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. Day2f845be2016-04-16 05:53:07 -0400105 Use this only if you really know what you are doing.
Przemyslaw Marczak88436782015-03-04 14:01:24 +0100106
107if 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.
Tom Rinia50d5b52014-11-14 09:34:29 +0100116
Przemyslaw Marczak88436782015-03-04 14:01:24 +0100117 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. Day2f845be2016-04-16 05:53:07 -0400122 should be replaced by calloc - if one expects zeroed memory.
Simon Glass86a64492016-06-30 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. Daye4829f32017-01-02 16:32:13 -0500132endif # EXPERT
Masahiro Yamada653e9fe2016-07-25 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 Yamada9eeddf22014-11-26 18:42:31 +0900141endmenu # General setup
142
Masahiro Yamada6ea06e62014-08-22 19:42:27 +0900143menu "Boot images"
144
Masahiro Yamadaa7fa7462014-11-13 19:29:06 +0900145config FIT
146 bool "Support Flattened Image Tree"
Andre Przywara84763302017-03-15 01:19:06 +0000147 select MD5
Masahiro Yamadaa7fa7462014-11-13 19:29:06 +0900148 help
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500149 This option allows you to boot the new uImage structure,
Masahiro Yamadaa7fa7462014-11-13 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 Grinberge40176b2015-08-26 17:54:45 +0300153 pass the address of the blob to the "bootm" command.
Simon Glasse3ee2fb2016-02-22 22:55:43 -0700154 FIT is very flexible, supporting compression, multiple images,
155 multiple configurations, verification through hashing and also
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500156 verified boot (secure boot using RSA).
Masahiro Yamadaa7fa7462014-11-13 19:29:06 +0900157
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500158if FIT
Masahiro Yamadaa7fa7462014-11-13 19:29:06 +0900159
160config FIT_SIGNATURE
Ruchika Gupta2c3822e2015-01-23 16:01:51 +0530161 bool "Enable signature verification of FIT uImages"
Chris Kuetheb58cf4f2015-02-04 19:16:14 -0800162 depends on DM
Ruchika Gupta2c3822e2015-01-23 16:01:51 +0530163 select RSA
Masahiro Yamadaa7fa7462014-11-13 19:29:06 +0900164 help
165 This option enables signature verification of FIT uImages,
gaurav ranaef201592015-02-20 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. Daye4829f32017-01-02 16:32:13 -0500168 hashing is available using hardware, then the RSA library will use
Simon Glasse3ee2fb2016-02-22 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. Daye4829f32017-01-02 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 Reed5021e3c2016-06-09 19:18:44 -0700184
Simon Glasse3ee2fb2016-02-22 22:55:43 -0700185config FIT_BEST_MATCH
186 bool "Select the best match for the kernel device tree"
Simon Glasse3ee2fb2016-02-22 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. Daye4829f32017-01-02 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 Glasse3ee2fb2016-02-22 22:55:43 -0700197 help
Robert P. J. Daye4829f32017-01-02 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
Andre Przywarad28fda22017-04-26 01:32:38 +0100211 select SPL_OF_LIBFDT
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500212
213config SPL_FIT_SIGNATURE
214 bool "Enable signature verification of FIT firmware within SPL"
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500215 depends on SPL_DM
Andre Przywarad28fda22017-04-26 01:32:38 +0100216 select SPL_FIT
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500217 select SPL_RSA
218
219config SPL_LOAD_FIT
220 bool "Enable SPL loading U-Boot as a FIT"
Andre Przywarad28fda22017-04-26 01:32:38 +0100221 select SPL_FIT
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500222 help
223 Normally with the SPL framework a legacy image is generated as part
224 of the build. This contains U-Boot along with information as to
225 where it should be loaded. This option instead enables generation
226 of a FIT (Flat Image Tree) which provides more flexibility. In
227 particular it can handle selecting from multiple device tree
228 and passing the correct one to U-Boot.
229
230config SPL_FIT_IMAGE_POST_PROCESS
231 bool "Enable post-processing of FIT artifacts after loading by the SPL"
232 depends on SPL_LOAD_FIT && TI_SECURE_DEVICE
233 help
234 Allows doing any sort of manipulation to blobs after they got extracted
235 from the U-Boot FIT image like stripping off headers or modifying the
236 size of the blob, verification, authentication, decryption etc. in a
237 platform or board specific way. In order to use this feature a platform
238 or board-specific implementation of board_fit_image_post_process() must
239 be provided. Also, anything done during this post-processing step would
240 need to be comprehended in how the images were prepared before being
241 injected into the FIT creation (i.e. the blobs would have been pre-
242 processed before being added to the FIT image).
243
Andre Przywara0f6456d2017-04-26 01:32:45 +0100244config SPL_FIT_SOURCE
245 string ".its source file for U-Boot FIT image"
246 depends on SPL_FIT
247 help
248 Specifies a (platform specific) FIT source file to generate the
249 U-Boot FIT image. This could specify further image to load and/or
250 execute.
251
252config SPL_FIT_GENERATOR
253 string ".its file generator script for U-Boot FIT image"
254 depends on SPL_FIT
255 help
256 Specifies a (platform specific) script file to generate the FIT
257 source file used to build the U-Boot FIT image file. This gets
258 passed a list of supported device tree file stub names to
259 include in the generated image.
260
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500261endif # FIT
Simon Glasse3ee2fb2016-02-22 22:55:43 -0700262
263config OF_BOARD_SETUP
264 bool "Set up board-specific details in device tree before boot"
265 depends on OF_LIBFDT
266 help
267 This causes U-Boot to call ft_board_setup() before booting into
268 the Operating System. This function can set up various
269 board-specific information in the device tree for use by the OS.
270 The device tree is then passed to the OS.
271
272config OF_SYSTEM_SETUP
273 bool "Set up system-specific details in device tree before boot"
274 depends on OF_LIBFDT
275 help
276 This causes U-Boot to call ft_system_setup() before booting into
277 the Operating System. This function can set up various
278 system-specific information in the device tree for use by the OS.
279 The device tree is then passed to the OS.
280
281config OF_STDOUT_VIA_ALIAS
282 bool "Update the device-tree stdout alias from U-Boot"
283 depends on OF_LIBFDT
284 help
285 This uses U-Boot's serial alias from the aliases node to update
286 the device tree passed to the OS. The "linux,stdout-path" property
287 in the chosen node is set to point to the correct serial node.
288 This option currently references CONFIG_CONS_INDEX, which is
289 incorrect when used with device tree as this option does not
290 exist / should not be used.
Masahiro Yamadaa7fa7462014-11-13 19:29:06 +0900291
Masahiro Yamada804bc5e2014-07-30 14:08:15 +0900292config SYS_EXTRA_OPTIONS
293 string "Extra Options (DEPRECATED)"
Masahiro Yamada804bc5e2014-07-30 14:08:15 +0900294 help
295 The old configuration infrastructure (= mkconfig + boards.cfg)
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +0900296 provided the extra options field. If you have something like
Masahiro Yamada804bc5e2014-07-30 14:08:15 +0900297 "HAS_BAR,BAZ=64", the optional options
298 #define CONFIG_HAS
299 #define CONFIG_BAZ 64
300 will be defined in include/config.h.
301 This option was prepared for the smooth migration from the old
302 configuration to Kconfig. Since this option will be removed sometime,
303 new boards should not use this option.
304
Masahiro Yamadac02a3272014-10-30 15:30:58 +0900305config SYS_TEXT_BASE
Tom Rinifef2bd12017-03-14 11:08:11 -0400306 depends on ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \
Michal Simek92543872016-12-16 11:57:17 +0100307 (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE || MIPS || \
Madan Srinivas1bccf862017-04-07 10:00:08 -0500308 ARCH_ZYNQ || ARCH_KEYSTONE
Ben Stoltzb7e41242015-08-04 12:33:41 -0600309 depends on !EFI_APP
Masahiro Yamadac02a3272014-10-30 15:30:58 +0900310 hex "Text Base"
311 help
312 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
313
Andreas Dannenberg67aaa6d2016-07-27 12:12:39 -0500314
Alexey Brodkin693744a2015-01-13 18:49:01 +0300315config SYS_CLK_FREQ
Iain Paton630df142015-03-28 10:26:38 +0000316 depends on ARC || ARCH_SUNXI
Alexey Brodkin693744a2015-01-13 18:49:01 +0300317 int "CPU clock frequency"
318 help
319 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
320
Masahiro Yamadaf6aa39e2016-11-26 11:02:10 +0900321config ARCH_FIXUP_FDT_MEMORY
322 bool "Enable arch_fixup_memory_banks() call"
Michal Simek8ff86892016-07-28 09:06:41 +0200323 default y
324 help
325 Enable FDT memory map syncup before OS boot. This feature can be
326 used for booting OS with different memory setup where the part of
327 the memory location should be used for different purpose.
328
Masahiro Yamada6ea06e62014-08-22 19:42:27 +0900329endmenu # Boot images
Masahiro Yamada804bc5e2014-07-30 14:08:15 +0900330
Emmanuel Vadotaa020992017-01-31 12:17:04 +0100331source "api/Kconfig"
332
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +0900333source "common/Kconfig"
334
Simon Glass29499a02016-01-17 20:53:51 -0700335source "cmd/Kconfig"
336
Patrick Delaunaydc280602017-01-27 11:00:35 +0100337source "disk/Kconfig"
338
Masahiro Yamada9fadbc82014-09-22 19:59:05 +0900339source "dts/Kconfig"
340
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +0900341source "net/Kconfig"
342
343source "drivers/Kconfig"
344
345source "fs/Kconfig"
346
347source "lib/Kconfig"
Simon Glass9dd430d2015-02-05 21:41:37 -0700348
349source "test/Kconfig"
Masahiro Yamadabb92b422017-01-30 11:12:07 +0900350
351source "scripts/Kconfig"