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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#
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
Peng Fan75189732020-08-06 12:42:45 +0300108config XEN
109 bool "Select U-Boot be run as a bootloader for XEN Virtual Machine"
110 help
111 Enabling this option will make U-Boot be run as a bootloader
112 for XEN [1] Virtual Machine.
113
114 Xen is a virtual machine monitor (VMM) or a type-1 hypervisor with support
115 for para-virtualization. Xen can organize the safe execution of several
116 virtual machines on the same physical system with performance close to
117 native. It is used as the basis for a number of different commercial and
118 open source applications, such as: server virtualization, Infrastructure
119 as a Service (IaaS), desktop virtualization, security applications,
120 embedded and hardware appliances.
121 Xen has a special VM called Domain-0 that runs the Dom0 kernel and allows
122 Xen to use the device drivers for the Domain-0 kernel by default.
123
124 [1] - https://xenproject.org/
125
Hans de Goede9f823612016-06-20 23:16:28 +0200126config DISTRO_DEFAULTS
127 bool "Select defaults suitable for booting general purpose Linux distributions"
Michal Simek58008cb2018-07-23 15:55:15 +0200128 select AUTO_COMPLETE
129 select CMDLINE_EDITING
Masahiro Yamada26959272016-08-12 08:31:16 -0400130 select CMD_BOOTI if ARM64
Michal Simek58008cb2018-07-23 15:55:15 +0200131 select CMD_BOOTZ if ARM && !ARM64
Joe Hershbergerba628852018-04-13 15:26:31 -0500132 select CMD_DHCP if CMD_NET
Masahiro Yamadac4f66832018-04-25 19:16:48 +0900133 select CMD_ENV_EXISTS
Hans de Goede9f823612016-06-20 23:16:28 +0200134 select CMD_EXT2
135 select CMD_EXT4
136 select CMD_FAT
137 select CMD_FS_GENERIC
Tom Rinifa2c1462018-02-10 16:54:38 -0500138 select CMD_PART if PARTITIONS
Michal Simek58008cb2018-07-23 15:55:15 +0200139 select CMD_PING if CMD_NET
140 select CMD_PXE if NET
Patrice Chotard993c9122019-11-25 09:07:38 +0100141 select CMD_SYSBOOT
Adam Fordd021e942018-02-06 07:58:59 -0600142 select ENV_VARS_UBOOT_CONFIG
Michal Simek58008cb2018-07-23 15:55:15 +0200143 select HUSH_PARSER
144 select SUPPORT_RAW_INITRD
145 select SYS_LONGHELP
146 imply CMD_MII if NET
Alexander Graf4aa74922018-10-18 09:33:03 +0200147 imply USB_STORAGE
Michal Simek58008cb2018-07-23 15:55:15 +0200148 imply USE_BOOTCOMMAND
Hans de Goede9f823612016-06-20 23:16:28 +0200149 help
150 Select this to enable various options and commands which are suitable
151 for building u-boot for booting general purpose Linux distributions.
152
Adam Fordd021e942018-02-06 07:58:59 -0600153config ENV_VARS_UBOOT_CONFIG
154 bool "Add arch, board, vendor and soc variables to default environment"
155 help
156 Define this in order to add variables describing the
157 U-Boot build configuration to the default environment.
158 These will be named arch, cpu, board, vendor, and soc.
159 Enabling this option will cause the following to be defined:
160 - CONFIG_SYS_ARCH
161 - CONFIG_SYS_CPU
162 - CONFIG_SYS_BOARD
163 - CONFIG_SYS_VENDOR
164 - CONFIG_SYS_SOC
165
Ramon Fried999a7722018-08-14 01:00:04 +0300166config NR_DRAM_BANKS
167 int "Number of DRAM banks"
Amit Singh Tomard5c819b2020-04-19 19:28:34 +0530168 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried999a7722018-08-14 01:00:04 +0300169 default 4
170 help
171 This defines the number of DRAM banks.
172
Derald D. Woods405fc832018-01-22 17:17:10 -0600173config SYS_BOOT_GET_CMDLINE
174 bool "Enable kernel command line setup"
175 help
176 Enables allocating and saving kernel cmdline in space between
177 "bootm_low" and "bootm_low" + BOOTMAPSZ.
178
179config SYS_BOOT_GET_KBD
180 bool "Enable kernel board information setup"
181 help
182 Enables allocating and saving a kernel copy of the bd_info in
183 space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
184
Simon Glassb724bd72015-02-11 16:32:59 -0700185config SYS_MALLOC_F
186 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +0900187 default y if DM
Simon Glass15a5c722018-12-03 04:37:17 -0700188
Simon Glassb724bd72015-02-11 16:32:59 -0700189 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400190 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700191 we can provide a small malloc() pool if needed. Driver model in
192 particular needs this to operate, so that it can allocate the
193 initial serial device and any others that are needed.
194
195config SYS_MALLOC_F_LEN
196 hex "Size of malloc() pool before relocation"
197 depends on SYS_MALLOC_F
Sjoerd Simons90e407a2018-04-12 18:09:58 +0200198 default 0x1000 if AM33XX
Simon Glass15a5c722018-12-03 04:37:17 -0700199 default 0x2800 if SANDBOX
Fabio Estevam08919d32019-05-03 14:05:04 -0300200 default 0x2000 if (ARCH_IMX8 || ARCH_IMX8M || ARCH_MX7 || \
Biwen Li6089d8a2019-12-31 15:33:40 +0800201 ARCH_MX7ULP || ARCH_MX6 || ARCH_MX5 || \
202 ARCH_LS1012A || ARCH_LS1021A || ARCH_LS1043A || \
Heinrich Schuchardt5b603262020-06-07 11:54:00 +0200203 ARCH_LS1046A || ARCH_QEMU)
Simon Glassb724bd72015-02-11 16:32:59 -0700204 default 0x400
205 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400206 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700207 we can provide a small malloc() pool if needed. Driver model in
208 particular needs this to operate, so that it can allocate the
209 initial serial device and any others that are needed.
210
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530211config SYS_MALLOC_LEN
212 hex "Define memory for Dynamic allocation"
Kever Yang4d2c5722019-08-19 15:01:24 +0800213 depends on ARCH_ZYNQ || ARCH_VERSAL || ARCH_STM32MP || ARCH_ROCKCHIP
214 default 0x2000000 if ARCH_ROCKCHIP
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530215 help
216 This defines memory to be allocated for Dynamic allocation
217 TODO: Use for other architectures
218
Andy Yanf1896c42017-07-24 17:43:34 +0800219config SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200220 hex "Size of malloc() pool in SPL before relocation"
Adam Ford05705562019-08-13 14:32:30 -0500221 depends on SYS_MALLOC_F && SPL
Marek Vasut56023302018-10-03 12:44:13 +0200222 default 0x2800 if RCAR_GEN3
Michal Simek14aa2102018-07-24 14:47:43 +0200223 default SYS_MALLOC_F_LEN
224 help
225 Before relocation, memory is very limited on many platforms. Still,
226 we can provide a small malloc() pool if needed. Driver model in
227 particular needs this to operate, so that it can allocate the
228 initial serial device and any others that are needed.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200229
230config TPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200231 hex "Size of malloc() pool in TPL before relocation"
Adam Ford05705562019-08-13 14:32:30 -0500232 depends on SYS_MALLOC_F && TPL
Michal Simek14aa2102018-07-24 14:47:43 +0200233 default SYS_MALLOC_F_LEN
234 help
235 Before relocation, memory is very limited on many platforms. Still,
236 we can provide a small malloc() pool if needed. Driver model in
237 particular needs this to operate, so that it can allocate the
238 initial serial device and any others that are needed.
Andy Yanf1896c42017-07-24 17:43:34 +0800239
Tom Rini1bf09792014-11-14 09:34:29 +0100240menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100241 bool "Configure standard U-Boot features (expert users)"
242 default y
243 help
244 This option allows certain base U-Boot options and settings
245 to be disabled or tweaked. This is for specialized
246 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400247 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100248
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100249if EXPERT
250 config SYS_MALLOC_CLEAR_ON_INIT
251 bool "Init with zeros the memory reserved for malloc (slow)"
252 default y
253 help
254 This setting is enabled by default. The reserved malloc
255 memory is initialized with zeros, so first malloc calls
256 will return the pointer to the zeroed memory. But this
257 slows the boot time.
258
259 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
260 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
261 Then the boot time can be significantly reduced.
262 Warning:
263 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400264 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600265
Marek Bykowski9297e362020-04-29 18:23:07 +0200266config SYS_MALLOC_DEFAULT_TO_INIT
267 bool "Default malloc to init while reserving the memory for it"
268 default n
269 help
270 It may happen that one needs to move the dynamic allocation
271 from one to another memory range, eg. when moving the malloc
272 from the limited static to a potentially large dynamic (DDR)
273 memory.
274
275 If so then on top of setting the updated memory aside one
276 needs to bring the malloc init.
277
278 If such a scenario is sought choose yes.
279
Simon Glass022885c2016-06-30 10:52:20 -0600280config TOOLS_DEBUG
281 bool "Enable debug information for tools"
282 help
283 Enable generation of debug information for tools such as mkimage.
284 This can be used for debugging purposes. With debug information
285 it is possible to set breakpoints on particular lines, single-step
286 debug through the source code, etc.
287
Robert P. J. Day266aa862017-01-02 16:32:13 -0500288endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900289
290config PHYS_64BIT
291 bool "64bit physical address support"
292 help
293 Say Y here to support 64bit physical memory address.
294 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300295 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900296
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600297config HAS_ROM
298 bool
299 select BINMAN
300 help
301 Enables building of a u-boot.rom target. This collects U-Boot and
302 any necessary binary blobs.
303
304config ROM_NEEDS_BLOBS
305 bool
306 depends on HAS_ROM
307 help
308 Enable this if building the u-boot.rom target needs binary blobs, and
Simon Glass3be8ba52020-07-19 13:56:04 -0600309 so cannot be done normally. In this case, U-Boot will only build the
310 ROM if the required blobs exist. If not, you will see an warning like:
311
312 Image 'main-section' is missing external blobs and is non-functional:
313 intel-descriptor intel-me intel-refcode intel-vga intel-mrc
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600314
Heinrich Schuchardt871aa412017-10-16 18:08:38 +0000315config BUILD_ROM
316 bool "Build U-Boot as BIOS replacement"
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600317 depends on HAS_ROM
318 default y if !ROM_NEEDS_BLOBS
Heinrich Schuchardt871aa412017-10-16 18:08:38 +0000319 help
320 This option allows to build a ROM version of U-Boot.
321 The build process generally requires several binary blobs
322 which are not shipped in the U-Boot source tree.
Patrick Delaunay480e4112020-02-28 15:18:11 +0100323 Please, see doc/arch/x86.rst for details.
Heinrich Schuchardt871aa412017-10-16 18:08:38 +0000324
Stefan Roese9ea6f712019-04-03 15:24:50 +0200325config SPL_IMAGE
326 string "SPL image used in the combined SPL+U-Boot image"
327 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
328 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500329 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200330 help
331 Select the SPL build target that shall be generated by the SPL
332 build process (default spl/u-boot-spl.bin). This image will be
333 used to generate a combined image with SPL and main U-Boot
334 proper as one single image.
335
Jagan Tekidc146ca2019-01-18 12:52:49 +0530336config BUILD_TARGET
337 string "Build target special images"
Dalon Westergreene3ada912019-03-20 13:15:21 -0700338 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
339 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Baruch Siach0ef69202019-02-07 13:21:16 +0200340 default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530341 default "u-boot-elf.srec" if RCAR_GEN3
Simon Glassa32dd072020-07-19 13:56:12 -0600342 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Michal Simek5b21d642019-10-02 15:55:57 +0200343 ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
Trevor Woernerbb0fb4c2020-05-06 08:02:40 -0400344 default "u-boot.kwb" if ARCH_KIRKWOOD
Stefan Roese9ea6f712019-04-03 15:24:50 +0200345 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
Stefan Roese4f761dd2019-09-20 18:09:10 +0200346 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530347 help
348 Some SoCs need special image types (e.g. U-Boot binary
349 with a special header) as build targets. By defining
350 CONFIG_BUILD_TARGET in the SoC / board header, this
351 special image will be automatically built upon calling
352 make / buildman.
353
Tom Rinid760a5e2019-06-02 08:57:32 -0400354config SYS_CUSTOM_LDSCRIPT
355 bool "Use a custom location for the U-Boot linker script"
356 help
357 Normally when linking U-Boot we will look in the board directory,
358 the CPU directory and finally the "cpu" directory of the architecture
359 for the ile "u-boot.lds" and use that as our linker. However, in
360 some cases we need to provide a different linker script. To do so,
361 enable this option and then provide the location under
362 CONFIG_SYS_LDSCRIPT.
363
364config SYS_LDSCRIPT
365 depends on SYS_CUSTOM_LDSCRIPT
366 string "Custom ldscript location"
367 help
368 Path within the source tree to the linker script to use for the
369 main U-Boot binary.
370
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200371config ERR_PTR_OFFSET
372 hex
373 default 0x0
374 help
375 Some U-Boot pointers have redundant information, so we can use a
376 scheme where we can return either an error code or a pointer with the
377 same return value. The default implementation just casts the pointer
378 to a number, however, this may fail on platforms where the end of the
379 address range is used for valid pointers (e.g. 0xffffff00 is a valid
380 heap pointer in socfpga SPL).
381 For such platforms, this value provides an upper range of those error
382 pointer values - up to 'MAX_ERRNO' bytes below this value must be
383 unused/invalid addresses.
384
Michal Simeke14ba8a2020-03-30 13:58:59 +0200385config PLATFORM_ELFENTRY
386 string
387 default "__start" if MIPS
388 default "_start"
389
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200390config STACK_SIZE
391 hex "Define max stack size that can be used by U-Boot"
392 default 0x4000000 if ARCH_VERSAL || ARCH_ZYNQMP
393 default 0x200000 if MICROBLAZE
394 default 0x1000000
395 help
396 Define Max stack size that can be used by U-Boot. This value is used
397 by the UEFI sub-system. On some boards initrd_high is calculated as
398 base stack pointer minus this stack size.
399
Ovidiu Panait7be19312020-07-24 14:12:09 +0300400config SYS_HAS_SRAM
401 bool
402 default y if TARGET_PIC32MZDASK
403 default y if TARGET_DEVKIT8000
404 default y if TARGET_TRICORDER
405 default n
406 help
407 Enable this to allow support for the on board SRAM.
408 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
409 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
410
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300411config SYS_SRAM_BASE
412 hex
413 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait9a17bfb2020-07-24 14:12:12 +0300414 default 0x40200000 if TARGET_DEVKIT8000
415 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300416 default 0x0
417
Ovidiu Panait9f63f022020-07-24 14:12:11 +0300418config SYS_SRAM_SIZE
419 hex
420 default 0x00080000 if TARGET_PIC32MZDASK
421 default 0x10000 if TARGET_DEVKIT8000
422 default 0x10000 if TARGET_TRICORDER
423 default 0x0
424
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900425endmenu # General setup
426
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900427menu "Boot images"
428
Tom Rini48f62322017-08-25 17:50:27 -0400429config ANDROID_BOOT_IMAGE
430 bool "Enable support for Android Boot Images"
431 default y if FASTBOOT
432 help
433 This enables support for booting images which use the Android
434 image format header.
435
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900436config FIT
437 bool "Support Flattened Image Tree"
Andre Przywaraaeb9c532017-03-15 01:19:06 +0000438 select MD5
Tom Rini089df182017-05-15 12:17:49 -0400439 select SHA1
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900440 help
Robert P. J. Day266aa862017-01-02 16:32:13 -0500441 This option allows you to boot the new uImage structure,
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900442 Flattened Image Tree. FIT is formally a FDT, which can include
443 images of various types (kernel, FDT blob, ramdisk, etc.)
444 in a single blob. To boot this new uImage structure,
Igor Grinberg1f9ac4a2015-08-26 17:54:45 +0300445 pass the address of the blob to the "bootm" command.
Simon Glass73223f02016-02-22 22:55:43 -0700446 FIT is very flexible, supporting compression, multiple images,
447 multiple configurations, verification through hashing and also
Robert P. J. Day266aa862017-01-02 16:32:13 -0500448 verified boot (secure boot using RSA).
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900449
Robert P. J. Day266aa862017-01-02 16:32:13 -0500450if FIT
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900451
Peng Fan3814fcb2018-11-20 10:19:11 +0000452config FIT_EXTERNAL_OFFSET
Ibai Erkiagaf07ce592019-05-15 22:10:04 +0100453 hex "FIT external data offset"
Peng Fan3814fcb2018-11-20 10:19:11 +0000454 default 0x0
455 help
456 This specifies a data offset in fit image.
457 The offset is from data payload offset to the beginning of
458 fit image header. When specifies a offset, specific data
459 could be put in the hole between data payload and fit image
460 header, such as CSF data on i.MX platform.
461
Tom Rini0db7f682017-05-15 12:17:48 -0400462config FIT_ENABLE_SHA256_SUPPORT
463 bool "Support SHA256 checksum of FIT image contents"
464 default y
Michal Simek58008cb2018-07-23 15:55:15 +0200465 select SHA256
Tom Rini0db7f682017-05-15 12:17:48 -0400466 help
467 Enable this to support SHA256 checksum of FIT image contents. A
468 SHA256 checksum is a 256-bit (32-byte) hash value used to check that
Reuben Dowled16b38f2020-04-16 17:36:52 +1200469 the image contents have not been corrupted.
470
471config FIT_ENABLE_SHA384_SUPPORT
472 bool "Support SHA384 checksum of FIT image contents"
473 default n
474 select SHA384
475 help
476 Enable this to support SHA384 checksum of FIT image contents. A
477 SHA384 checksum is a 384-bit (48-byte) hash value used to check that
478 the image contents have not been corrupted. Use this for the highest
479 security.
480
481config FIT_ENABLE_SHA512_SUPPORT
482 bool "Support SHA512 checksum of FIT image contents"
483 default n
484 select SHA512
485 help
486 Enable this to support SHA512 checksum of FIT image contents. A
487 SHA512 checksum is a 512-bit (64-byte) hash value used to check that
488 the image contents have not been corrupted.
Tom Rini0db7f682017-05-15 12:17:48 -0400489
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900490config FIT_SIGNATURE
Ruchika Guptac4beb222015-01-23 16:01:51 +0530491 bool "Enable signature verification of FIT uImages"
Chris Kuethe90097982015-02-04 19:16:14 -0800492 depends on DM
Kelvin Cheung535adee2018-05-02 18:07:18 +0800493 select HASH
Michal Simek58008cb2018-07-23 15:55:15 +0200494 select RSA
AKASHI Takahirob983cc22020-02-21 15:12:55 +0900495 select RSA_VERIFY
496 select IMAGE_SIGN_INFO
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900497 help
498 This option enables signature verification of FIT uImages,
gaurav rana94e3c8c2015-02-20 12:51:46 +0530499 using a hash signed and verified using RSA. If
500 CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
Robert P. J. Day266aa862017-01-02 16:32:13 -0500501 hashing is available using hardware, then the RSA library will use
Simon Glass73223f02016-02-22 22:55:43 -0700502 it. See doc/uImage.FIT/signature.txt for more details.
503
504 WARNING: When relying on signed FIT images with a required signature
505 check the legacy image format is disabled by default, so that
506 unsigned images cannot be loaded. If a board needs the legacy image
507 format support in this case, enable it using
Tom Rinic76c93a2019-05-23 07:14:07 -0400508 CONFIG_LEGACY_IMAGE_FORMAT.
Simon Glass73223f02016-02-22 22:55:43 -0700509
Teddy Reed72239fc2018-06-09 11:38:05 -0400510config FIT_SIGNATURE_MAX_SIZE
511 hex "Max size of signed FIT structures"
512 depends on FIT_SIGNATURE
513 default 0x10000000
514 help
515 This option sets a max size in bytes for verified FIT uImages.
516 A sane value of 256MB protects corrupted DTB structures from overlapping
517 device memory. Assure this size does not extend past expected storage
518 space.
519
Philippe Reynes061daa02018-11-14 13:51:01 +0100520config FIT_ENABLE_RSASSA_PSS_SUPPORT
521 bool "Support rsassa-pss signature scheme of FIT image contents"
522 depends on FIT_SIGNATURE
523 default n
524 help
525 Enable this to support the pss padding algorithm as described
526 in the rfc8017 (https://tools.ietf.org/html/rfc8017).
527
Philippe Reynes7298e422019-12-18 18:25:41 +0100528config FIT_CIPHER
529 bool "Enable ciphering data in a FIT uImages"
530 depends on DM
531 select AES
532 help
533 Enable the feature of data ciphering/unciphering in the tool mkimage
534 and in the u-boot support of the FIT image.
535
Robert P. J. Day266aa862017-01-02 16:32:13 -0500536config FIT_VERBOSE
537 bool "Show verbose messages when FIT images fail"
538 help
539 Generally a system will have valid FIT images so debug messages
540 are a waste of code space. If you are debugging your images then
541 you can enable this option to get more verbose information about
542 failures.
Teddy Reed51c14cd2016-06-09 19:18:44 -0700543
Simon Glass73223f02016-02-22 22:55:43 -0700544config FIT_BEST_MATCH
545 bool "Select the best match for the kernel device tree"
Simon Glass73223f02016-02-22 22:55:43 -0700546 help
547 When no configuration is explicitly selected, default to the
548 one whose fdt's compatibility field best matches that of
549 U-Boot itself. A match is considered "best" if it matches the
550 most specific compatibility entry of U-Boot's fdt's root node.
551 The order of entries in the configuration's fdt is ignored.
552
Robert P. J. Day266aa862017-01-02 16:32:13 -0500553config FIT_IMAGE_POST_PROCESS
554 bool "Enable post-processing of FIT artifacts after loading by U-Boot"
555 depends on TI_SECURE_DEVICE
Simon Glass73223f02016-02-22 22:55:43 -0700556 help
Robert P. J. Day266aa862017-01-02 16:32:13 -0500557 Allows doing any sort of manipulation to blobs after they got extracted
558 from FIT images like stripping off headers or modifying the size of the
559 blob, verification, authentication, decryption etc. in a platform or
560 board specific way. In order to use this feature a platform or board-
561 specific implementation of board_fit_image_post_process() must be
562 provided. Also, anything done during this post-processing step would
563 need to be comprehended in how the images were prepared before being
564 injected into the FIT creation (i.e. the blobs would have been pre-
565 processed before being added to the FIT image).
566
Tom Rini71139112017-05-22 14:15:16 -0400567if SPL
568
Robert P. J. Day266aa862017-01-02 16:32:13 -0500569config SPL_FIT
570 bool "Support Flattened Image Tree within SPL"
571 depends on SPL
Andre Przywara85c07a52017-04-26 01:32:38 +0100572 select SPL_OF_LIBFDT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500573
Marek Vasutb527b9c2018-05-13 00:22:52 +0200574config SPL_FIT_PRINT
575 bool "Support FIT printing within SPL"
576 depends on SPL_FIT
577 help
578 Support printing the content of the fitImage in a verbose manner in SPL.
579
Robert P. J. Day266aa862017-01-02 16:32:13 -0500580config SPL_FIT_SIGNATURE
581 bool "Enable signature verification of FIT firmware within SPL"
Robert P. J. Day266aa862017-01-02 16:32:13 -0500582 depends on SPL_DM
Andre Przywara85c07a52017-04-26 01:32:38 +0100583 select SPL_FIT
Heiko Stuebnerc076fab2020-06-18 16:23:28 +0200584 select SPL_CRYPTO_SUPPORT
Heiko Stuebner051cc092020-06-18 16:23:27 +0200585 select SPL_HASH_SUPPORT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500586 select SPL_RSA
AKASHI Takahirob983cc22020-02-21 15:12:55 +0900587 select SPL_RSA_VERIFY
Heinrich Schuchardt64411642020-04-15 18:46:21 +0200588 select SPL_IMAGE_SIGN_INFO
Robert P. J. Day266aa862017-01-02 16:32:13 -0500589
590config SPL_LOAD_FIT
Marek Vasut2a221fb2019-05-25 22:53:42 +0200591 bool "Enable SPL loading U-Boot as a FIT (basic fitImage features)"
Andre Przywara85c07a52017-04-26 01:32:38 +0100592 select SPL_FIT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500593 help
594 Normally with the SPL framework a legacy image is generated as part
595 of the build. This contains U-Boot along with information as to
596 where it should be loaded. This option instead enables generation
597 of a FIT (Flat Image Tree) which provides more flexibility. In
598 particular it can handle selecting from multiple device tree
599 and passing the correct one to U-Boot.
600
Peng Fan936d07d2020-07-06 15:35:00 +0800601config SPL_LOAD_FIT_ADDRESS
602 hex "load address of fit image"
603 depends on SPL_LOAD_FIT
604 default 0x0
605 help
606 Specify the load address of the fit image that will be loaded
607 by SPL.
608
Michal Simek9d13b872019-10-22 16:39:11 +0200609config SPL_LOAD_FIT_APPLY_OVERLAY
610 bool "Enable SPL applying DT overlays from FIT"
611 depends on SPL_LOAD_FIT
612 select OF_LIBFDT_OVERLAY
613 help
614 The device tree is loaded from the FIT image. Allow the SPL is to
615 also load device-tree overlays from the FIT image an apply them
616 over the device tree.
617
Jean-Jacques Hiblotea376eb2019-10-22 16:39:13 +0200618config SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ
619 depends on SPL_LOAD_FIT_APPLY_OVERLAY
620 default 0x10000
621 hex "size of temporary buffer used to load the overlays"
622 help
623 The size of the area where the overlays will be loaded and
624 uncompress. Must be at least as large as biggest overlay
625 (uncompressed)
626
Marek Vasut8a9dc162018-05-13 00:23:17 +0200627config SPL_LOAD_FIT_FULL
Marek Vasut2a221fb2019-05-25 22:53:42 +0200628 bool "Enable SPL loading U-Boot as a FIT (full fitImage features)"
Marek Vasut8a9dc162018-05-13 00:23:17 +0200629 select SPL_FIT
630 help
631 Normally with the SPL framework a legacy image is generated as part
632 of the build. This contains U-Boot along with information as to
633 where it should be loaded. This option instead enables generation
634 of a FIT (Flat Image Tree) which provides more flexibility. In
635 particular it can handle selecting from multiple device tree
636 and passing the correct one to U-Boot.
637
Robert P. J. Day266aa862017-01-02 16:32:13 -0500638config SPL_FIT_IMAGE_POST_PROCESS
639 bool "Enable post-processing of FIT artifacts after loading by the SPL"
ext-vasily.gurevich@vaisala.comc12d8b72017-10-02 13:42:55 +0000640 depends on SPL_LOAD_FIT
Robert P. J. Day266aa862017-01-02 16:32:13 -0500641 help
642 Allows doing any sort of manipulation to blobs after they got extracted
643 from the U-Boot FIT image like stripping off headers or modifying the
644 size of the blob, verification, authentication, decryption etc. in a
645 platform or board specific way. In order to use this feature a platform
646 or board-specific implementation of board_fit_image_post_process() must
647 be provided. Also, anything done during this post-processing step would
648 need to be comprehended in how the images were prepared before being
649 injected into the FIT creation (i.e. the blobs would have been pre-
650 processed before being added to the FIT image).
651
Andre Przywara1a12fdc2017-04-26 01:32:45 +0100652config SPL_FIT_SOURCE
653 string ".its source file for U-Boot FIT image"
654 depends on SPL_FIT
655 help
656 Specifies a (platform specific) FIT source file to generate the
657 U-Boot FIT image. This could specify further image to load and/or
658 execute.
659
Simon Glassa8f3ace2020-07-19 13:56:10 -0600660config USE_SPL_FIT_GENERATOR
661 bool "Use a script to generate the .its script"
662 default y if SPL_FIT
663
Andre Przywara1a12fdc2017-04-26 01:32:45 +0100664config SPL_FIT_GENERATOR
665 string ".its file generator script for U-Boot FIT image"
Simon Glassa8f3ace2020-07-19 13:56:10 -0600666 depends on USE_SPL_FIT_GENERATOR
Andre Przywarad29adf82017-04-26 01:32:48 +0100667 default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI
Jagan Teki695dca92019-05-08 11:11:42 +0530668 default "arch/arm/mach-rockchip/make_fit_atf.py" if SPL_LOAD_FIT && ARCH_ROCKCHIP
Michal Simek5b21d642019-10-02 15:55:57 +0200669 default "arch/arm/mach-zynqmp/mkimage_fit_atf.sh" if SPL_LOAD_FIT && ARCH_ZYNQMP
Lukas Auer109f82b2019-08-21 21:14:48 +0200670 default "arch/riscv/lib/mkimage_fit_opensbi.sh" if SPL_LOAD_FIT && RISCV
Andre Przywara1a12fdc2017-04-26 01:32:45 +0100671 help
672 Specifies a (platform specific) script file to generate the FIT
673 source file used to build the U-Boot FIT image file. This gets
674 passed a list of supported device tree file stub names to
675 include in the generated image.
676
Tom Rini71139112017-05-22 14:15:16 -0400677endif # SPL
678
Robert P. J. Day266aa862017-01-02 16:32:13 -0500679endif # FIT
Simon Glass73223f02016-02-22 22:55:43 -0700680
Tom Rinic76c93a2019-05-23 07:14:07 -0400681config LEGACY_IMAGE_FORMAT
Alex Kiernan002c3232018-04-20 21:25:38 +0000682 bool "Enable support for the legacy image format"
683 default y if !FIT_SIGNATURE
684 help
685 This option enables the legacy image format. It is enabled by
686 default for backward compatibility, unless FIT_SIGNATURE is
687 set where it is disabled so that unsigned images cannot be
688 loaded. If a board needs the legacy image format support in this
689 case, enable it here.
690
Simon Glass73223f02016-02-22 22:55:43 -0700691config OF_BOARD_SETUP
692 bool "Set up board-specific details in device tree before boot"
693 depends on OF_LIBFDT
694 help
695 This causes U-Boot to call ft_board_setup() before booting into
696 the Operating System. This function can set up various
697 board-specific information in the device tree for use by the OS.
698 The device tree is then passed to the OS.
699
700config OF_SYSTEM_SETUP
701 bool "Set up system-specific details in device tree before boot"
702 depends on OF_LIBFDT
703 help
704 This causes U-Boot to call ft_system_setup() before booting into
705 the Operating System. This function can set up various
706 system-specific information in the device tree for use by the OS.
707 The device tree is then passed to the OS.
708
709config OF_STDOUT_VIA_ALIAS
710 bool "Update the device-tree stdout alias from U-Boot"
711 depends on OF_LIBFDT
712 help
713 This uses U-Boot's serial alias from the aliases node to update
714 the device tree passed to the OS. The "linux,stdout-path" property
715 in the chosen node is set to point to the correct serial node.
716 This option currently references CONFIG_CONS_INDEX, which is
717 incorrect when used with device tree as this option does not
718 exist / should not be used.
Masahiro Yamadab6cf4432014-11-13 19:29:06 +0900719
Masahiro Yamada51631252014-07-30 14:08:15 +0900720config SYS_EXTRA_OPTIONS
721 string "Extra Options (DEPRECATED)"
Masahiro Yamada51631252014-07-30 14:08:15 +0900722 help
723 The old configuration infrastructure (= mkconfig + boards.cfg)
Masahiro Yamadaed363232014-09-16 16:32:58 +0900724 provided the extra options field. If you have something like
Masahiro Yamada51631252014-07-30 14:08:15 +0900725 "HAS_BAR,BAZ=64", the optional options
726 #define CONFIG_HAS
727 #define CONFIG_BAZ 64
728 will be defined in include/config.h.
729 This option was prepared for the smooth migration from the old
730 configuration to Kconfig. Since this option will be removed sometime,
731 new boards should not use this option.
732
Simon Glassb3112952019-12-06 21:42:29 -0700733config HAVE_SYS_TEXT_BASE
734 bool
Tom Rini278b90c2018-02-03 12:10:38 -0500735 depends on !NIOS2 && !XTENSA
Ben Stoltz484cce02015-08-04 12:33:41 -0600736 depends on !EFI_APP
Simon Glassb3112952019-12-06 21:42:29 -0700737 default y
738
739config SYS_TEXT_BASE
740 depends on HAVE_SYS_TEXT_BASE
Lokesh Vutla586bde92018-08-27 15:57:08 +0530741 default 0x80800000 if ARCH_OMAP2PLUS || ARCH_K3
Andre Przywara341c0582018-03-03 23:49:02 +0000742 default 0x4a000000 if ARCH_SUNXI && !MACH_SUN9I && !MACH_SUN8I_V3S
743 default 0x2a000000 if ARCH_SUNXI && MACH_SUN9I
744 default 0x42e00000 if ARCH_SUNXI && MACH_SUN8I_V3S
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900745 hex "Text Base"
746 help
Tom Rini278b90c2018-02-03 12:10:38 -0500747 The address in memory that U-Boot will be running from, initially.
Masahiro Yamada7f7563c2014-10-30 15:30:58 +0900748
Alexey Brodkin33d88182015-01-13 18:49:01 +0300749config SYS_CLK_FREQ
Mario Sixff3bb0c2019-01-21 09:17:53 +0100750 depends on ARC || ARCH_SUNXI || MPC83xx
Alexey Brodkin33d88182015-01-13 18:49:01 +0300751 int "CPU clock frequency"
752 help
753 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
754
Masahiro Yamada63c09412016-11-26 11:02:10 +0900755config ARCH_FIXUP_FDT_MEMORY
756 bool "Enable arch_fixup_memory_banks() call"
Michal Simeke2f88df2016-07-28 09:06:41 +0200757 default y
758 help
759 Enable FDT memory map syncup before OS boot. This feature can be
760 used for booting OS with different memory setup where the part of
761 the memory location should be used for different purpose.
762
Masahiro Yamadae91c3c32014-08-22 19:42:27 +0900763endmenu # Boot images
Masahiro Yamada51631252014-07-30 14:08:15 +0900764
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100765source "api/Kconfig"
766
Masahiro Yamadaed363232014-09-16 16:32:58 +0900767source "common/Kconfig"
768
Simon Glass72a8cf82016-01-17 20:53:51 -0700769source "cmd/Kconfig"
770
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100771source "disk/Kconfig"
772
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900773source "dts/Kconfig"
774
Simon Glass0649cd02017-08-03 12:21:49 -0600775source "env/Kconfig"
776
Masahiro Yamadaed363232014-09-16 16:32:58 +0900777source "net/Kconfig"
778
779source "drivers/Kconfig"
780
781source "fs/Kconfig"
782
783source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700784
785source "test/Kconfig"