blob: e6308f30e5bddba4e593f6d832dbdd058e8ca951 [file] [log] [blame]
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#
Tom Rini5972ff02020-03-11 18:11:17 -04006mainmenu "U-Boot $(UBOOTVERSION) Configuration"
Masahiro Yamada51631252014-07-30 14:08:15 +09007
Tom Rini61139e22020-05-18 14:48:00 -04008comment "Compiler: $(CC_VERSION_TEXT)"
9
Tom Rinia9610bd2020-05-14 08:30:01 -040010source "scripts/Kconfig.include"
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
Heinrich Schuchardt4c7a2112017-10-19 23:49:19 +020017config BROKEN
18 bool
19 help
20 This option cannot be enabled. It is used as dependency
21 for broken and incomplete features.
22
Tom Rini524e98a2019-05-29 17:01:29 -040023config DEPRECATED
24 bool
25 help
26 This option cannot be enabled. It it used as a dependency for
27 code that relies on deprecated features that will be removed and
28 the conversion deadline has passed.
29
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090030config LOCALVERSION
31 string "Local version - append to U-Boot release"
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090032 help
33 Append an extra string to the end of your U-Boot version.
Robert P. J. Day59d7c342016-04-16 05:53:07 -040034 This will show up in your boot log, for example.
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090035 The string you set here will be appended after the contents of
36 any files with a filename matching localversion* in your
37 object and source tree, in that order. Your total string can
38 be a maximum of 64 characters.
39
40config LOCALVERSION_AUTO
41 bool "Automatically append version information to the version string"
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090042 default y
43 help
44 This will try to automatically determine if the current tree is a
Robert P. J. Day59d7c342016-04-16 05:53:07 -040045 release tree by looking for Git tags that belong to the current
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090046 top of tree revision.
47
48 A string of the format -gxxxxxxxx will be added to the localversion
Robert P. J. Day59d7c342016-04-16 05:53:07 -040049 if a Git-based tree is found. The string generated by this will be
Masahiro Yamadae91c3c32014-08-22 19:42:27 +090050 appended after any matching localversion* files, and after the value
51 set in CONFIG_LOCALVERSION.
52
53 (The actual string used here is the first eight characters produced
54 by running the command:
55
56 $ git rev-parse --verify HEAD
57
58 which is done within the script "scripts/setlocalversion".)
59
Masahiro Yamada4a8ed8e2014-08-22 19:42:29 +090060config CC_OPTIMIZE_FOR_SIZE
61 bool "Optimize for size"
Masahiro Yamada4a8ed8e2014-08-22 19:42:29 +090062 default y
63 help
64 Enabling this option will pass "-Os" instead of "-O2" to gcc
65 resulting in a smaller U-Boot image.
66
67 This option is enabled by default for U-Boot.
68
Tom Rini1f1a0f32020-05-14 08:30:07 -040069config OPTIMIZE_INLINING
Tom Rini72c4d402020-05-14 08:30:08 -040070 bool "Allow compiler to uninline functions marked 'inline' in full U-Boot"
71 default n
72 help
73 This option determines if U-Boot forces gcc to inline the functions
74 developers have marked 'inline'. Doing so takes away freedom from gcc to
75 do what it thinks is best, which is desirable in some cases for size
76 reasons.
77
78config SPL_OPTIMIZE_INLINING
79 bool "Allow compiler to uninline functions marked 'inline' in SPL"
80 depends on SPL
81 default n
82 help
83 This option determines if U-Boot forces gcc to inline the functions
84 developers have marked 'inline'. Doing so takes away freedom from gcc to
85 do what it thinks is best, which is desirable in some cases for size
86 reasons.
87
88config TPL_OPTIMIZE_INLINING
89 bool "Allow compiler to uninline functions marked 'inline' in TPL"
90 depends on TPL
Tom Rini1f1a0f32020-05-14 08:30:07 -040091 default n
92 help
93 This option determines if U-Boot forces gcc to inline the functions
94 developers have marked 'inline'. Doing so takes away freedom from gcc to
95 do what it thinks is best, which is desirable in some cases for size
96 reasons.
97
Christian Gmeiner52ff8022018-04-09 17:11:45 +020098config CC_COVERAGE
99 bool "Enable code coverage analysis"
100 depends on SANDBOX
101 help
102 Enabling this option will pass "--coverage" to gcc to compile
103 and link code instrumented for coverage analysis.
104
Tom Rini67f51b42020-05-14 08:30:06 -0400105config CC_HAS_ASM_INLINE
106 def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
107
Hans de Goede9f823612016-06-20 23:16:28 +0200108config DISTRO_DEFAULTS
109 bool "Select defaults suitable for booting general purpose Linux distributions"
Michal Simek58008cb2018-07-23 15:55:15 +0200110 select AUTO_COMPLETE
111 select CMDLINE_EDITING
Masahiro Yamada26959272016-08-12 08:31:16 -0400112 select CMD_BOOTI if ARM64
Michal Simek58008cb2018-07-23 15:55:15 +0200113 select CMD_BOOTZ if ARM && !ARM64
Joe Hershbergerba628852018-04-13 15:26:31 -0500114 select CMD_DHCP if CMD_NET
Masahiro Yamadac4f66832018-04-25 19:16:48 +0900115 select CMD_ENV_EXISTS
Hans de Goede9f823612016-06-20 23:16:28 +0200116 select CMD_EXT2
117 select CMD_EXT4
118 select CMD_FAT
119 select CMD_FS_GENERIC
Tom Rinifa2c1462018-02-10 16:54:38 -0500120 select CMD_PART if PARTITIONS
Michal Simek58008cb2018-07-23 15:55:15 +0200121 select CMD_PING if CMD_NET
122 select CMD_PXE if NET
Patrice Chotard993c9122019-11-25 09:07:38 +0100123 select CMD_SYSBOOT
Adam Fordd021e942018-02-06 07:58:59 -0600124 select ENV_VARS_UBOOT_CONFIG
Michal Simek58008cb2018-07-23 15:55:15 +0200125 select HUSH_PARSER
126 select SUPPORT_RAW_INITRD
127 select SYS_LONGHELP
128 imply CMD_MII if NET
Alexander Graf4aa74922018-10-18 09:33:03 +0200129 imply USB_STORAGE
Michal Simek58008cb2018-07-23 15:55:15 +0200130 imply USE_BOOTCOMMAND
Hans de Goede9f823612016-06-20 23:16:28 +0200131 help
132 Select this to enable various options and commands which are suitable
133 for building u-boot for booting general purpose Linux distributions.
134
Adam Fordd021e942018-02-06 07:58:59 -0600135config ENV_VARS_UBOOT_CONFIG
136 bool "Add arch, board, vendor and soc variables to default environment"
137 help
138 Define this in order to add variables describing the
139 U-Boot build configuration to the default environment.
140 These will be named arch, cpu, board, vendor, and soc.
141 Enabling this option will cause the following to be defined:
142 - CONFIG_SYS_ARCH
143 - CONFIG_SYS_CPU
144 - CONFIG_SYS_BOARD
145 - CONFIG_SYS_VENDOR
146 - CONFIG_SYS_SOC
147
Ramon Fried999a7722018-08-14 01:00:04 +0300148config NR_DRAM_BANKS
149 int "Number of DRAM banks"
Amit Singh Tomard5c819b2020-04-19 19:28:34 +0530150 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried999a7722018-08-14 01:00:04 +0300151 default 4
152 help
153 This defines the number of DRAM banks.
154
Derald D. Woods405fc832018-01-22 17:17:10 -0600155config SYS_BOOT_GET_CMDLINE
156 bool "Enable kernel command line setup"
157 help
158 Enables allocating and saving kernel cmdline in space between
159 "bootm_low" and "bootm_low" + BOOTMAPSZ.
160
161config SYS_BOOT_GET_KBD
162 bool "Enable kernel board information setup"
163 help
164 Enables allocating and saving a kernel copy of the bd_info in
165 space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
166
Simon Glassb724bd72015-02-11 16:32:59 -0700167config SYS_MALLOC_F
168 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +0900169 default y if DM
Simon Glass15a5c722018-12-03 04:37:17 -0700170
Simon Glassb724bd72015-02-11 16:32:59 -0700171 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400172 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700173 we can provide a small malloc() pool if needed. Driver model in
174 particular needs this to operate, so that it can allocate the
175 initial serial device and any others that are needed.
176
177config SYS_MALLOC_F_LEN
178 hex "Size of malloc() pool before relocation"
179 depends on SYS_MALLOC_F
Sjoerd Simons90e407a2018-04-12 18:09:58 +0200180 default 0x1000 if AM33XX
Simon Glass15a5c722018-12-03 04:37:17 -0700181 default 0x2800 if SANDBOX
Fabio Estevam08919d32019-05-03 14:05:04 -0300182 default 0x2000 if (ARCH_IMX8 || ARCH_IMX8M || ARCH_MX7 || \
Biwen Li6089d8a2019-12-31 15:33:40 +0800183 ARCH_MX7ULP || ARCH_MX6 || ARCH_MX5 || \
184 ARCH_LS1012A || ARCH_LS1021A || ARCH_LS1043A || \
Heinrich Schuchardt5b603262020-06-07 11:54:00 +0200185 ARCH_LS1046A || ARCH_QEMU)
Simon Glassb724bd72015-02-11 16:32:59 -0700186 default 0x400
187 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400188 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700189 we can provide a small malloc() pool if needed. Driver model in
190 particular needs this to operate, so that it can allocate the
191 initial serial device and any others that are needed.
192
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530193config SYS_MALLOC_LEN
194 hex "Define memory for Dynamic allocation"
Kever Yang4d2c5722019-08-19 15:01:24 +0800195 depends on ARCH_ZYNQ || ARCH_VERSAL || ARCH_STM32MP || ARCH_ROCKCHIP
196 default 0x2000000 if ARCH_ROCKCHIP
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530197 help
198 This defines memory to be allocated for Dynamic allocation
199 TODO: Use for other architectures
200
Andy Yanf1896c42017-07-24 17:43:34 +0800201config SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200202 hex "Size of malloc() pool in SPL before relocation"
Adam Ford05705562019-08-13 14:32:30 -0500203 depends on SYS_MALLOC_F && SPL
Marek Vasut56023302018-10-03 12:44:13 +0200204 default 0x2800 if RCAR_GEN3
Michal Simek14aa2102018-07-24 14:47:43 +0200205 default SYS_MALLOC_F_LEN
206 help
207 Before relocation, memory is very limited on many platforms. Still,
208 we can provide a small malloc() pool if needed. Driver model in
209 particular needs this to operate, so that it can allocate the
210 initial serial device and any others that are needed.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200211
212config TPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200213 hex "Size of malloc() pool in TPL before relocation"
Adam Ford05705562019-08-13 14:32:30 -0500214 depends on SYS_MALLOC_F && TPL
Michal Simek14aa2102018-07-24 14:47:43 +0200215 default SYS_MALLOC_F_LEN
216 help
217 Before relocation, memory is very limited on many platforms. Still,
218 we can provide a small malloc() pool if needed. Driver model in
219 particular needs this to operate, so that it can allocate the
220 initial serial device and any others that are needed.
Andy Yanf1896c42017-07-24 17:43:34 +0800221
Tom Rini1bf09792014-11-14 09:34:29 +0100222menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100223 bool "Configure standard U-Boot features (expert users)"
224 default y
225 help
226 This option allows certain base U-Boot options and settings
227 to be disabled or tweaked. This is for specialized
228 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400229 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100230
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100231if EXPERT
232 config SYS_MALLOC_CLEAR_ON_INIT
233 bool "Init with zeros the memory reserved for malloc (slow)"
234 default y
235 help
236 This setting is enabled by default. The reserved malloc
237 memory is initialized with zeros, so first malloc calls
238 will return the pointer to the zeroed memory. But this
239 slows the boot time.
240
241 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
242 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
243 Then the boot time can be significantly reduced.
244 Warning:
245 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400246 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600247
Marek Bykowski9297e362020-04-29 18:23:07 +0200248config SYS_MALLOC_DEFAULT_TO_INIT
249 bool "Default malloc to init while reserving the memory for it"
250 default n
251 help
252 It may happen that one needs to move the dynamic allocation
253 from one to another memory range, eg. when moving the malloc
254 from the limited static to a potentially large dynamic (DDR)
255 memory.
256
257 If so then on top of setting the updated memory aside one
258 needs to bring the malloc init.
259
260 If such a scenario is sought choose yes.
261
Simon Glass022885c2016-06-30 10:52:20 -0600262config TOOLS_DEBUG
263 bool "Enable debug information for tools"
264 help
265 Enable generation of debug information for tools such as mkimage.
266 This can be used for debugging purposes. With debug information
267 it is possible to set breakpoints on particular lines, single-step
268 debug through the source code, etc.
269
Robert P. J. Day266aa862017-01-02 16:32:13 -0500270endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900271
272config PHYS_64BIT
273 bool "64bit physical address support"
274 help
275 Say Y here to support 64bit physical memory address.
276 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300277 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900278
Heinrich Schuchardt871aa412017-10-16 18:08:38 +0000279config BUILD_ROM
280 bool "Build U-Boot as BIOS replacement"
281 depends on X86
282 help
283 This option allows to build a ROM version of U-Boot.
284 The build process generally requires several binary blobs
285 which are not shipped in the U-Boot source tree.
Patrick Delaunay480e4112020-02-28 15:18:11 +0100286 Please, see doc/arch/x86.rst for details.
Heinrich Schuchardt871aa412017-10-16 18:08:38 +0000287
Stefan Roese9ea6f712019-04-03 15:24:50 +0200288config SPL_IMAGE
289 string "SPL image used in the combined SPL+U-Boot image"
290 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
291 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500292 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200293 help
294 Select the SPL build target that shall be generated by the SPL
295 build process (default spl/u-boot-spl.bin). This image will be
296 used to generate a combined image with SPL and main U-Boot
297 proper as one single image.
298
Jagan Tekidc146ca2019-01-18 12:52:49 +0530299config BUILD_TARGET
300 string "Build target special images"
Dalon Westergreene3ada912019-03-20 13:15:21 -0700301 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
302 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Baruch Siach0ef69202019-02-07 13:21:16 +0200303 default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530304 default "u-boot-elf.srec" if RCAR_GEN3
Kever Yangd8765e22019-10-17 12:08:34 -0700305 default "u-boot.itb" if SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Michal Simek5b21d642019-10-02 15:55:57 +0200306 ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
Trevor Woernerbb0fb4c2020-05-06 08:02:40 -0400307 default "u-boot.kwb" if ARCH_KIRKWOOD
Stefan Roese9ea6f712019-04-03 15:24:50 +0200308 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
Stefan Roese4f761dd2019-09-20 18:09:10 +0200309 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530310 help
311 Some SoCs need special image types (e.g. U-Boot binary
312 with a special header) as build targets. By defining
313 CONFIG_BUILD_TARGET in the SoC / board header, this
314 special image will be automatically built upon calling
315 make / buildman.
316
Tom Rinid760a5e2019-06-02 08:57:32 -0400317config SYS_CUSTOM_LDSCRIPT
318 bool "Use a custom location for the U-Boot linker script"
319 help
320 Normally when linking U-Boot we will look in the board directory,
321 the CPU directory and finally the "cpu" directory of the architecture
322 for the ile "u-boot.lds" and use that as our linker. However, in
323 some cases we need to provide a different linker script. To do so,
324 enable this option and then provide the location under
325 CONFIG_SYS_LDSCRIPT.
326
327config SYS_LDSCRIPT
328 depends on SYS_CUSTOM_LDSCRIPT
329 string "Custom ldscript location"
330 help
331 Path within the source tree to the linker script to use for the
332 main U-Boot binary.
333
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200334config ERR_PTR_OFFSET
335 hex
336 default 0x0
337 help
338 Some U-Boot pointers have redundant information, so we can use a
339 scheme where we can return either an error code or a pointer with the
340 same return value. The default implementation just casts the pointer
341 to a number, however, this may fail on platforms where the end of the
342 address range is used for valid pointers (e.g. 0xffffff00 is a valid
343 heap pointer in socfpga SPL).
344 For such platforms, this value provides an upper range of those error
345 pointer values - up to 'MAX_ERRNO' bytes below this value must be
346 unused/invalid addresses.
347
Michal Simeke14ba8a2020-03-30 13:58:59 +0200348config PLATFORM_ELFENTRY
349 string
350 default "__start" if MIPS
351 default "_start"
352
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900353endmenu # General setup
354
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900355menu "Boot images"
356
Tom Rini48f62322017-08-25 17:50:27 -0400357config ANDROID_BOOT_IMAGE
358 bool "Enable support for Android Boot Images"
359 default y if FASTBOOT
360 help
361 This enables support for booting images which use the Android
362 image format header.
363
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900364config FIT
365 bool "Support Flattened Image Tree"
Andre Przywaraaeb9c532017-03-15 01:19:06 +0000366 select MD5
Tom Rini089df182017-05-15 12:17:49 -0400367 select SHA1
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900368 help
Robert P. J. Day266aa862017-01-02 16:32:13 -0500369 This option allows you to boot the new uImage structure,
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900370 Flattened Image Tree. FIT is formally a FDT, which can include
371 images of various types (kernel, FDT blob, ramdisk, etc.)
372 in a single blob. To boot this new uImage structure,
Igor Grinberg1f9ac4a2015-08-26 17:54:45 +0300373 pass the address of the blob to the "bootm" command.
Simon Glass73223f02016-02-22 22:55:43 -0700374 FIT is very flexible, supporting compression, multiple images,
375 multiple configurations, verification through hashing and also
Robert P. J. Day266aa862017-01-02 16:32:13 -0500376 verified boot (secure boot using RSA).
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900377
Robert P. J. Day266aa862017-01-02 16:32:13 -0500378if FIT
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900379
Peng Fan3814fcb2018-11-20 10:19:11 +0000380config FIT_EXTERNAL_OFFSET
Ibai Erkiagaf07ce592019-05-15 22:10:04 +0100381 hex "FIT external data offset"
Peng Fan3814fcb2018-11-20 10:19:11 +0000382 default 0x0
383 help
384 This specifies a data offset in fit image.
385 The offset is from data payload offset to the beginning of
386 fit image header. When specifies a offset, specific data
387 could be put in the hole between data payload and fit image
388 header, such as CSF data on i.MX platform.
389
Tom Rini0db7f682017-05-15 12:17:48 -0400390config FIT_ENABLE_SHA256_SUPPORT
391 bool "Support SHA256 checksum of FIT image contents"
392 default y
Michal Simek58008cb2018-07-23 15:55:15 +0200393 select SHA256
Tom Rini0db7f682017-05-15 12:17:48 -0400394 help
395 Enable this to support SHA256 checksum of FIT image contents. A
396 SHA256 checksum is a 256-bit (32-byte) hash value used to check that
Reuben Dowled16b38f2020-04-16 17:36:52 +1200397 the image contents have not been corrupted.
398
399config FIT_ENABLE_SHA384_SUPPORT
400 bool "Support SHA384 checksum of FIT image contents"
401 default n
402 select SHA384
403 help
404 Enable this to support SHA384 checksum of FIT image contents. A
405 SHA384 checksum is a 384-bit (48-byte) hash value used to check that
406 the image contents have not been corrupted. Use this for the highest
407 security.
408
409config FIT_ENABLE_SHA512_SUPPORT
410 bool "Support SHA512 checksum of FIT image contents"
411 default n
412 select SHA512
413 help
414 Enable this to support SHA512 checksum of FIT image contents. A
415 SHA512 checksum is a 512-bit (64-byte) hash value used to check that
416 the image contents have not been corrupted.
Tom Rini0db7f682017-05-15 12:17:48 -0400417
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900418config FIT_SIGNATURE
Ruchika Guptac4beb222015-01-23 16:01:51 +0530419 bool "Enable signature verification of FIT uImages"
Chris Kuethe90097982015-02-04 19:16:14 -0800420 depends on DM
Kelvin Cheung535adee2018-05-02 18:07:18 +0800421 select HASH
Michal Simek58008cb2018-07-23 15:55:15 +0200422 select RSA
AKASHI Takahirob983cc22020-02-21 15:12:55 +0900423 select RSA_VERIFY
424 select IMAGE_SIGN_INFO
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900425 help
426 This option enables signature verification of FIT uImages,
gaurav rana94e3c8c2015-02-20 12:51:46 +0530427 using a hash signed and verified using RSA. If
428 CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
Robert P. J. Day266aa862017-01-02 16:32:13 -0500429 hashing is available using hardware, then the RSA library will use
Simon Glass73223f02016-02-22 22:55:43 -0700430 it. See doc/uImage.FIT/signature.txt for more details.
431
432 WARNING: When relying on signed FIT images with a required signature
433 check the legacy image format is disabled by default, so that
434 unsigned images cannot be loaded. If a board needs the legacy image
435 format support in this case, enable it using
Tom Rinic76c93a2019-05-23 07:14:07 -0400436 CONFIG_LEGACY_IMAGE_FORMAT.
Simon Glass73223f02016-02-22 22:55:43 -0700437
Teddy Reed72239fc2018-06-09 11:38:05 -0400438config FIT_SIGNATURE_MAX_SIZE
439 hex "Max size of signed FIT structures"
440 depends on FIT_SIGNATURE
441 default 0x10000000
442 help
443 This option sets a max size in bytes for verified FIT uImages.
444 A sane value of 256MB protects corrupted DTB structures from overlapping
445 device memory. Assure this size does not extend past expected storage
446 space.
447
Philippe Reynes061daa02018-11-14 13:51:01 +0100448config FIT_ENABLE_RSASSA_PSS_SUPPORT
449 bool "Support rsassa-pss signature scheme of FIT image contents"
450 depends on FIT_SIGNATURE
451 default n
452 help
453 Enable this to support the pss padding algorithm as described
454 in the rfc8017 (https://tools.ietf.org/html/rfc8017).
455
Philippe Reynes7298e422019-12-18 18:25:41 +0100456config FIT_CIPHER
457 bool "Enable ciphering data in a FIT uImages"
458 depends on DM
459 select AES
460 help
461 Enable the feature of data ciphering/unciphering in the tool mkimage
462 and in the u-boot support of the FIT image.
463
Robert P. J. Day266aa862017-01-02 16:32:13 -0500464config FIT_VERBOSE
465 bool "Show verbose messages when FIT images fail"
466 help
467 Generally a system will have valid FIT images so debug messages
468 are a waste of code space. If you are debugging your images then
469 you can enable this option to get more verbose information about
470 failures.
Teddy Reed51c14cd2016-06-09 19:18:44 -0700471
Simon Glass73223f02016-02-22 22:55:43 -0700472config FIT_BEST_MATCH
473 bool "Select the best match for the kernel device tree"
Simon Glass73223f02016-02-22 22:55:43 -0700474 help
475 When no configuration is explicitly selected, default to the
476 one whose fdt's compatibility field best matches that of
477 U-Boot itself. A match is considered "best" if it matches the
478 most specific compatibility entry of U-Boot's fdt's root node.
479 The order of entries in the configuration's fdt is ignored.
480
Robert P. J. Day266aa862017-01-02 16:32:13 -0500481config FIT_IMAGE_POST_PROCESS
482 bool "Enable post-processing of FIT artifacts after loading by U-Boot"
483 depends on TI_SECURE_DEVICE
Simon Glass73223f02016-02-22 22:55:43 -0700484 help
Robert P. J. Day266aa862017-01-02 16:32:13 -0500485 Allows doing any sort of manipulation to blobs after they got extracted
486 from FIT images like stripping off headers or modifying the size of the
487 blob, verification, authentication, decryption etc. in a platform or
488 board specific way. In order to use this feature a platform or board-
489 specific implementation of board_fit_image_post_process() must be
490 provided. Also, anything done during this post-processing step would
491 need to be comprehended in how the images were prepared before being
492 injected into the FIT creation (i.e. the blobs would have been pre-
493 processed before being added to the FIT image).
494
Tom Rini71139112017-05-22 14:15:16 -0400495if SPL
496
Robert P. J. Day266aa862017-01-02 16:32:13 -0500497config SPL_FIT
498 bool "Support Flattened Image Tree within SPL"
499 depends on SPL
Andre Przywara85c07a52017-04-26 01:32:38 +0100500 select SPL_OF_LIBFDT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500501
Marek Vasutb527b9c2018-05-13 00:22:52 +0200502config SPL_FIT_PRINT
503 bool "Support FIT printing within SPL"
504 depends on SPL_FIT
505 help
506 Support printing the content of the fitImage in a verbose manner in SPL.
507
Robert P. J. Day266aa862017-01-02 16:32:13 -0500508config SPL_FIT_SIGNATURE
509 bool "Enable signature verification of FIT firmware within SPL"
Robert P. J. Day266aa862017-01-02 16:32:13 -0500510 depends on SPL_DM
Andre Przywara85c07a52017-04-26 01:32:38 +0100511 select SPL_FIT
Heiko Stuebnerc076fab2020-06-18 16:23:28 +0200512 select SPL_CRYPTO_SUPPORT
Heiko Stuebner051cc092020-06-18 16:23:27 +0200513 select SPL_HASH_SUPPORT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500514 select SPL_RSA
AKASHI Takahirob983cc22020-02-21 15:12:55 +0900515 select SPL_RSA_VERIFY
Heinrich Schuchardt64411642020-04-15 18:46:21 +0200516 select SPL_IMAGE_SIGN_INFO
Robert P. J. Day266aa862017-01-02 16:32:13 -0500517
518config SPL_LOAD_FIT
Marek Vasut2a221fb2019-05-25 22:53:42 +0200519 bool "Enable SPL loading U-Boot as a FIT (basic fitImage features)"
Andre Przywara85c07a52017-04-26 01:32:38 +0100520 select SPL_FIT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500521 help
522 Normally with the SPL framework a legacy image is generated as part
523 of the build. This contains U-Boot along with information as to
524 where it should be loaded. This option instead enables generation
525 of a FIT (Flat Image Tree) which provides more flexibility. In
526 particular it can handle selecting from multiple device tree
527 and passing the correct one to U-Boot.
528
Peng Fan936d07d2020-07-06 15:35:00 +0800529config SPL_LOAD_FIT_ADDRESS
530 hex "load address of fit image"
531 depends on SPL_LOAD_FIT
532 default 0x0
533 help
534 Specify the load address of the fit image that will be loaded
535 by SPL.
536
Michal Simek9d13b872019-10-22 16:39:11 +0200537config SPL_LOAD_FIT_APPLY_OVERLAY
538 bool "Enable SPL applying DT overlays from FIT"
539 depends on SPL_LOAD_FIT
540 select OF_LIBFDT_OVERLAY
541 help
542 The device tree is loaded from the FIT image. Allow the SPL is to
543 also load device-tree overlays from the FIT image an apply them
544 over the device tree.
545
Jean-Jacques Hiblotea376eb2019-10-22 16:39:13 +0200546config SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ
547 depends on SPL_LOAD_FIT_APPLY_OVERLAY
548 default 0x10000
549 hex "size of temporary buffer used to load the overlays"
550 help
551 The size of the area where the overlays will be loaded and
552 uncompress. Must be at least as large as biggest overlay
553 (uncompressed)
554
Marek Vasut8a9dc162018-05-13 00:23:17 +0200555config SPL_LOAD_FIT_FULL
Marek Vasut2a221fb2019-05-25 22:53:42 +0200556 bool "Enable SPL loading U-Boot as a FIT (full fitImage features)"
Marek Vasut8a9dc162018-05-13 00:23:17 +0200557 select SPL_FIT
558 help
559 Normally with the SPL framework a legacy image is generated as part
560 of the build. This contains U-Boot along with information as to
561 where it should be loaded. This option instead enables generation
562 of a FIT (Flat Image Tree) which provides more flexibility. In
563 particular it can handle selecting from multiple device tree
564 and passing the correct one to U-Boot.
565
Robert P. J. Day266aa862017-01-02 16:32:13 -0500566config SPL_FIT_IMAGE_POST_PROCESS
567 bool "Enable post-processing of FIT artifacts after loading by the SPL"
ext-vasily.gurevich@vaisala.comc12d8b72017-10-02 13:42:55 +0000568 depends on SPL_LOAD_FIT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500569 help
570 Allows doing any sort of manipulation to blobs after they got extracted
571 from the U-Boot FIT image like stripping off headers or modifying the
572 size of the blob, verification, authentication, decryption etc. in a
573 platform or board specific way. In order to use this feature a platform
574 or board-specific implementation of board_fit_image_post_process() must
575 be provided. Also, anything done during this post-processing step would
576 need to be comprehended in how the images were prepared before being
577 injected into the FIT creation (i.e. the blobs would have been pre-
578 processed before being added to the FIT image).
579
Andre Przywara1a12fdc2017-04-26 01:32:45 +0100580config SPL_FIT_SOURCE
581 string ".its source file for U-Boot FIT image"
582 depends on SPL_FIT
583 help
584 Specifies a (platform specific) FIT source file to generate the
585 U-Boot FIT image. This could specify further image to load and/or
586 execute.
587
588config SPL_FIT_GENERATOR
589 string ".its file generator script for U-Boot FIT image"
590 depends on SPL_FIT
Andre Przywarad29adf82017-04-26 01:32:48 +0100591 default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI
Jagan Teki695dca92019-05-08 11:11:42 +0530592 default "arch/arm/mach-rockchip/make_fit_atf.py" if SPL_LOAD_FIT && ARCH_ROCKCHIP
Michal Simek5b21d642019-10-02 15:55:57 +0200593 default "arch/arm/mach-zynqmp/mkimage_fit_atf.sh" if SPL_LOAD_FIT && ARCH_ZYNQMP
Lukas Auer109f82b2019-08-21 21:14:48 +0200594 default "arch/riscv/lib/mkimage_fit_opensbi.sh" if SPL_LOAD_FIT && RISCV
Andre Przywara1a12fdc2017-04-26 01:32:45 +0100595 help
596 Specifies a (platform specific) script file to generate the FIT
597 source file used to build the U-Boot FIT image file. This gets
598 passed a list of supported device tree file stub names to
599 include in the generated image.
600
Tom Rini71139112017-05-22 14:15:16 -0400601endif # SPL
602
Robert P. J. Day266aa862017-01-02 16:32:13 -0500603endif # FIT
Simon Glass73223f02016-02-22 22:55:43 -0700604
Tom Rinic76c93a2019-05-23 07:14:07 -0400605config LEGACY_IMAGE_FORMAT
Alex Kiernan002c3232018-04-20 21:25:38 +0000606 bool "Enable support for the legacy image format"
607 default y if !FIT_SIGNATURE
608 help
609 This option enables the legacy image format. It is enabled by
610 default for backward compatibility, unless FIT_SIGNATURE is
611 set where it is disabled so that unsigned images cannot be
612 loaded. If a board needs the legacy image format support in this
613 case, enable it here.
614
Simon Glass73223f02016-02-22 22:55:43 -0700615config OF_BOARD_SETUP
616 bool "Set up board-specific details in device tree before boot"
617 depends on OF_LIBFDT
618 help
619 This causes U-Boot to call ft_board_setup() before booting into
620 the Operating System. This function can set up various
621 board-specific information in the device tree for use by the OS.
622 The device tree is then passed to the OS.
623
624config OF_SYSTEM_SETUP
625 bool "Set up system-specific details in device tree before boot"
626 depends on OF_LIBFDT
627 help
628 This causes U-Boot to call ft_system_setup() before booting into
629 the Operating System. This function can set up various
630 system-specific information in the device tree for use by the OS.
631 The device tree is then passed to the OS.
632
633config OF_STDOUT_VIA_ALIAS
634 bool "Update the device-tree stdout alias from U-Boot"
635 depends on OF_LIBFDT
636 help
637 This uses U-Boot's serial alias from the aliases node to update
638 the device tree passed to the OS. The "linux,stdout-path" property
639 in the chosen node is set to point to the correct serial node.
640 This option currently references CONFIG_CONS_INDEX, which is
641 incorrect when used with device tree as this option does not
642 exist / should not be used.
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900643
Masahiro Yamada51631252014-07-30 14:08:15 +0900644config SYS_EXTRA_OPTIONS
645 string "Extra Options (DEPRECATED)"
Masahiro Yamada51631252014-07-30 14:08:15 +0900646 help
647 The old configuration infrastructure (= mkconfig + boards.cfg)
Masahiro Yamadaed363232014-09-16 16:32:58 +0900648 provided the extra options field. If you have something like
Masahiro Yamada51631252014-07-30 14:08:15 +0900649 "HAS_BAR,BAZ=64", the optional options
650 #define CONFIG_HAS
651 #define CONFIG_BAZ 64
652 will be defined in include/config.h.
653 This option was prepared for the smooth migration from the old
654 configuration to Kconfig. Since this option will be removed sometime,
655 new boards should not use this option.
656
Simon Glassb3112952019-12-06 21:42:29 -0700657config HAVE_SYS_TEXT_BASE
658 bool
Tom Rini278b90c2018-02-03 12:10:38 -0500659 depends on !NIOS2 && !XTENSA
Ben Stoltz484cce02015-08-04 12:33:41 -0600660 depends on !EFI_APP
Simon Glassb3112952019-12-06 21:42:29 -0700661 default y
662
663config SYS_TEXT_BASE
664 depends on HAVE_SYS_TEXT_BASE
Lokesh Vutla586bde92018-08-27 15:57:08 +0530665 default 0x80800000 if ARCH_OMAP2PLUS || ARCH_K3
Andre Przywara341c0582018-03-03 23:49:02 +0000666 default 0x4a000000 if ARCH_SUNXI && !MACH_SUN9I && !MACH_SUN8I_V3S
667 default 0x2a000000 if ARCH_SUNXI && MACH_SUN9I
668 default 0x42e00000 if ARCH_SUNXI && MACH_SUN8I_V3S
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900669 hex "Text Base"
670 help
Tom Rini278b90c2018-02-03 12:10:38 -0500671 The address in memory that U-Boot will be running from, initially.
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900672
Alexey Brodkin33d88182015-01-13 18:49:01 +0300673config SYS_CLK_FREQ
Mario Sixff3bb0c2019-01-21 09:17:53 +0100674 depends on ARC || ARCH_SUNXI || MPC83xx
Alexey Brodkin33d88182015-01-13 18:49:01 +0300675 int "CPU clock frequency"
676 help
677 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
678
Masahiro Yamada63c09412016-11-26 11:02:10 +0900679config ARCH_FIXUP_FDT_MEMORY
680 bool "Enable arch_fixup_memory_banks() call"
Michal Simeke2f88df2016-07-28 09:06:41 +0200681 default y
682 help
683 Enable FDT memory map syncup before OS boot. This feature can be
684 used for booting OS with different memory setup where the part of
685 the memory location should be used for different purpose.
686
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900687endmenu # Boot images
Masahiro Yamada51631252014-07-30 14:08:15 +0900688
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100689source "api/Kconfig"
690
Masahiro Yamadaed363232014-09-16 16:32:58 +0900691source "common/Kconfig"
692
Simon Glass72a8cf82016-01-17 20:53:51 -0700693source "cmd/Kconfig"
694
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100695source "disk/Kconfig"
696
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900697source "dts/Kconfig"
698
Simon Glass0649cd02017-08-03 12:21:49 -0600699source "env/Kconfig"
700
Masahiro Yamadaed363232014-09-16 16:32:58 +0900701source "net/Kconfig"
702
703source "drivers/Kconfig"
704
705source "fs/Kconfig"
706
707source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700708
709source "test/Kconfig"