blob: e269856f7ef5a6b4eefbcb4d7f8f108240d6d54c [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
Tom Rini473fc272021-06-17 18:07:25 -040060config CC_IS_GCC
61 def_bool $(success,$(CC) --version | head -n 1 | grep -q gcc)
62
63config GCC_VERSION
64 int
65 default $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC
66 default 0
67
68config CC_IS_CLANG
69 def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)
70
71config CLANG_VERSION
72 int
73 default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
74
Sean Andersonf38cb2a2022-02-22 12:19:24 -050075choice
76 prompt "Optimization level"
77 default CC_OPTIMIZE_FOR_SIZE
78
Masahiro Yamada4a8ed8e2014-08-22 19:42:29 +090079config CC_OPTIMIZE_FOR_SIZE
80 bool "Optimize for size"
Masahiro Yamada4a8ed8e2014-08-22 19:42:29 +090081 help
Sean Andersonf38cb2a2022-02-22 12:19:24 -050082 Enabling this option will pass "-Os" to gcc, resulting in a smaller
83 U-Boot image.
Masahiro Yamada4a8ed8e2014-08-22 19:42:29 +090084
85 This option is enabled by default for U-Boot.
86
Sean Andersonf38cb2a2022-02-22 12:19:24 -050087config CC_OPTIMIZE_FOR_SPEED
88 bool "Optimize for speed"
89 help
90 Enabling this option will pass "-O2" to gcc, resulting in a faster
91 U-Boot image.
92
Sean Andersone9765042022-02-22 12:19:25 -050093config CC_OPTIMIZE_FOR_DEBUG
94 bool "Optimize for debugging"
95 help
96 Enabling this option will pass "-Og" to gcc, enabling optimizations
97 which don't interfere with debugging.
98
Sean Andersonf38cb2a2022-02-22 12:19:24 -050099endchoice
100
Tom Rini1f1a0f32020-05-14 08:30:07 -0400101config OPTIMIZE_INLINING
Tom Rini72c4d402020-05-14 08:30:08 -0400102 bool "Allow compiler to uninline functions marked 'inline' in full U-Boot"
Tom Rini72c4d402020-05-14 08:30:08 -0400103 help
104 This option determines if U-Boot forces gcc to inline the functions
105 developers have marked 'inline'. Doing so takes away freedom from gcc to
106 do what it thinks is best, which is desirable in some cases for size
107 reasons.
108
109config SPL_OPTIMIZE_INLINING
110 bool "Allow compiler to uninline functions marked 'inline' in SPL"
111 depends on SPL
Tom Rini72c4d402020-05-14 08:30:08 -0400112 help
113 This option determines if U-Boot forces gcc to inline the functions
114 developers have marked 'inline'. Doing so takes away freedom from gcc to
115 do what it thinks is best, which is desirable in some cases for size
116 reasons.
117
Marek BehĂșnc1094982021-05-20 13:24:03 +0200118config ARCH_SUPPORTS_LTO
119 bool
120
121config LTO
122 bool "Enable Link Time Optimizations"
123 depends on ARCH_SUPPORTS_LTO
Marek BehĂșnc1094982021-05-20 13:24:03 +0200124 help
125 This option enables Link Time Optimization (LTO), a mechanism which
126 allows the compiler to optimize between different compilation units.
127
128 This can optimize away dead code paths, resulting in smaller binary
129 size (if CC_OPTIMIZE_FOR_SIZE is enabled).
130
131 This option is not available for every architecture and may
132 introduce bugs.
133
134 Currently, when compiling with GCC, due to a weird bug regarding
135 jobserver, the final linking will not respect make's --jobs argument.
136 Instead all available processors will be used (as reported by the
137 nproc command).
138
139 If unsure, say n.
140
Tom Rini72c4d402020-05-14 08:30:08 -0400141config TPL_OPTIMIZE_INLINING
142 bool "Allow compiler to uninline functions marked 'inline' in TPL"
143 depends on TPL
Tom Rini1f1a0f32020-05-14 08:30:07 -0400144 help
145 This option determines if U-Boot forces gcc to inline the functions
146 developers have marked 'inline'. Doing so takes away freedom from gcc to
147 do what it thinks is best, which is desirable in some cases for size
148 reasons.
149
Christian Gmeiner52ff8022018-04-09 17:11:45 +0200150config CC_COVERAGE
151 bool "Enable code coverage analysis"
152 depends on SANDBOX
153 help
154 Enabling this option will pass "--coverage" to gcc to compile
155 and link code instrumented for coverage analysis.
156
Tom Rini67f51b42020-05-14 08:30:06 -0400157config CC_HAS_ASM_INLINE
158 def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
159
Peng Fan75189732020-08-06 12:42:45 +0300160config XEN
161 bool "Select U-Boot be run as a bootloader for XEN Virtual Machine"
162 help
163 Enabling this option will make U-Boot be run as a bootloader
164 for XEN [1] Virtual Machine.
165
166 Xen is a virtual machine monitor (VMM) or a type-1 hypervisor with support
167 for para-virtualization. Xen can organize the safe execution of several
168 virtual machines on the same physical system with performance close to
169 native. It is used as the basis for a number of different commercial and
170 open source applications, such as: server virtualization, Infrastructure
171 as a Service (IaaS), desktop virtualization, security applications,
172 embedded and hardware appliances.
173 Xen has a special VM called Domain-0 that runs the Dom0 kernel and allows
174 Xen to use the device drivers for the Domain-0 kernel by default.
175
176 [1] - https://xenproject.org/
177
Hans de Goede9f823612016-06-20 23:16:28 +0200178config DISTRO_DEFAULTS
179 bool "Select defaults suitable for booting general purpose Linux distributions"
Michal Simek58008cb2018-07-23 15:55:15 +0200180 select AUTO_COMPLETE
181 select CMDLINE_EDITING
Masahiro Yamada26959272016-08-12 08:31:16 -0400182 select CMD_BOOTI if ARM64
Michal Simek58008cb2018-07-23 15:55:15 +0200183 select CMD_BOOTZ if ARM && !ARM64
Joe Hershbergerba628852018-04-13 15:26:31 -0500184 select CMD_DHCP if CMD_NET
Masahiro Yamadac4f66832018-04-25 19:16:48 +0900185 select CMD_ENV_EXISTS
Hans de Goede9f823612016-06-20 23:16:28 +0200186 select CMD_EXT2
187 select CMD_EXT4
188 select CMD_FAT
189 select CMD_FS_GENERIC
Tom Rinifa2c1462018-02-10 16:54:38 -0500190 select CMD_PART if PARTITIONS
Michal Simek58008cb2018-07-23 15:55:15 +0200191 select CMD_PING if CMD_NET
192 select CMD_PXE if NET
Patrice Chotard993c9122019-11-25 09:07:38 +0100193 select CMD_SYSBOOT
Adam Fordd021e942018-02-06 07:58:59 -0600194 select ENV_VARS_UBOOT_CONFIG
Michal Simek58008cb2018-07-23 15:55:15 +0200195 select HUSH_PARSER
196 select SUPPORT_RAW_INITRD
197 select SYS_LONGHELP
198 imply CMD_MII if NET
Alexander Graf4aa74922018-10-18 09:33:03 +0200199 imply USB_STORAGE
Michal Simek58008cb2018-07-23 15:55:15 +0200200 imply USE_BOOTCOMMAND
Hans de Goede9f823612016-06-20 23:16:28 +0200201 help
202 Select this to enable various options and commands which are suitable
203 for building u-boot for booting general purpose Linux distributions.
204
Adam Fordd021e942018-02-06 07:58:59 -0600205config ENV_VARS_UBOOT_CONFIG
206 bool "Add arch, board, vendor and soc variables to default environment"
207 help
208 Define this in order to add variables describing the
209 U-Boot build configuration to the default environment.
210 These will be named arch, cpu, board, vendor, and soc.
211 Enabling this option will cause the following to be defined:
212 - CONFIG_SYS_ARCH
213 - CONFIG_SYS_CPU
214 - CONFIG_SYS_BOARD
215 - CONFIG_SYS_VENDOR
216 - CONFIG_SYS_SOC
217
Ramon Fried999a7722018-08-14 01:00:04 +0300218config NR_DRAM_BANKS
219 int "Number of DRAM banks"
Amit Singh Tomard5c819b2020-04-19 19:28:34 +0530220 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried999a7722018-08-14 01:00:04 +0300221 default 4
222 help
223 This defines the number of DRAM banks.
224
Derald D. Woods405fc832018-01-22 17:17:10 -0600225config SYS_BOOT_GET_CMDLINE
226 bool "Enable kernel command line setup"
227 help
228 Enables allocating and saving kernel cmdline in space between
229 "bootm_low" and "bootm_low" + BOOTMAPSZ.
230
231config SYS_BOOT_GET_KBD
232 bool "Enable kernel board information setup"
233 help
234 Enables allocating and saving a kernel copy of the bd_info in
235 space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
236
Simon Glassb724bd72015-02-11 16:32:59 -0700237config SYS_MALLOC_F
238 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +0900239 default y if DM
Simon Glass15a5c722018-12-03 04:37:17 -0700240
Simon Glassb724bd72015-02-11 16:32:59 -0700241 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400242 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700243 we can provide a small malloc() pool if needed. Driver model in
244 particular needs this to operate, so that it can allocate the
245 initial serial device and any others that are needed.
246
247config SYS_MALLOC_F_LEN
248 hex "Size of malloc() pool before relocation"
249 depends on SYS_MALLOC_F
Sjoerd Simons90e407a2018-04-12 18:09:58 +0200250 default 0x1000 if AM33XX
Heinrich Schuchardt776e8ac2022-04-05 16:47:15 +0200251 default 0x4000 if SANDBOX || RISCV
Fabio Estevam545eceb2022-03-26 11:47:40 -0300252 default 0x2000 if (ARCH_MX7 || ARCH_MX7ULP || ARCH_MX6 || ARCH_MX5 || \
Peng Fanb5989572022-04-11 17:07:04 +0800253 ARCH_QEMU || ARCH_SUNXI || ARCH_OWL || IMX8MQ)
254 default 0x10000 if (ARCH_IMX8 || (ARCH_IMX8M && !IMX8MQ) || \
255 ARCH_LS1012A || ARCH_LS1021A || ARCH_LS1043A || \
256 ARCH_LS1046A)
Simon Glassb724bd72015-02-11 16:32:59 -0700257 default 0x400
258 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400259 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700260 we can provide a small malloc() pool if needed. Driver model in
261 particular needs this to operate, so that it can allocate the
262 initial serial device and any others that are needed.
263
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530264config SYS_MALLOC_LEN
265 hex "Define memory for Dynamic allocation"
Tom Rini46d940c2022-04-14 11:34:47 -0400266 default 0x4000000 if SANDBOX
Tom Rini7cfbba32021-08-28 21:34:49 -0400267 default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
Tom Rini7cfbba32021-08-28 21:34:49 -0400268 default 0x200000 if ARCH_BMIPS || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500269 default 0x120000 if MACH_SUNIV
270 default 0x220000 if MACH_SUN8I_V3S
271 default 0x4020000 if ARCH_SUNXI
Tom Rini7cfbba32021-08-28 21:34:49 -0400272 default 0x400000
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530273 help
274 This defines memory to be allocated for Dynamic allocation
275 TODO: Use for other architectures
276
Andy Yanf1896c42017-07-24 17:43:34 +0800277config SPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700278 hex "Size of malloc() pool in SPL"
Adam Ford05705562019-08-13 14:32:30 -0500279 depends on SYS_MALLOC_F && SPL
Marek Vasut56023302018-10-03 12:44:13 +0200280 default 0x2800 if RCAR_GEN3
Michal Simek14aa2102018-07-24 14:47:43 +0200281 default SYS_MALLOC_F_LEN
282 help
Simon Glass14261742021-01-21 13:57:06 -0700283 In SPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200284 we can provide a small malloc() pool if needed. Driver model in
285 particular needs this to operate, so that it can allocate the
286 initial serial device and any others that are needed.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200287
Simon Glass14261742021-01-21 13:57:06 -0700288 It is possible to enable CONFIG_SYS_SPL_MALLOC_START to start a new
289 malloc() region in SDRAM once it is inited.
290
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200291config TPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700292 hex "Size of malloc() pool in TPL"
Adam Ford05705562019-08-13 14:32:30 -0500293 depends on SYS_MALLOC_F && TPL
Simon Glass14261742021-01-21 13:57:06 -0700294 default SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200295 help
Simon Glass14261742021-01-21 13:57:06 -0700296 In TPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200297 we can provide a small malloc() pool if needed. Driver model in
298 particular needs this to operate, so that it can allocate the
299 initial serial device and any others that are needed.
Andy Yanf1896c42017-07-24 17:43:34 +0800300
Sean Andersonfba08822022-03-23 14:04:48 -0400301config VALGRIND
302 bool "Inform valgrind about memory allocations"
303 help
304 Valgrind is an instrumentation framework for building dynamic analysis
305 tools. In particular, it may be used to detect memory management bugs
306 in U-Boot. It relies on knowing when heap blocks are allocated in
307 order to give accurate results. This happens automatically for
308 standard allocator functions provided by the host OS. However, this
309 doesn't automatically happen for U-Boot's malloc implementation.
310
311 Enable this option to annotate U-Boot's malloc implementation so that
312 it can be handled accurately by Valgrind. If you aren't planning on
313 using valgrind to debug U-Boot, say 'n'.
314
Tom Rini1bf09792014-11-14 09:34:29 +0100315menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100316 bool "Configure standard U-Boot features (expert users)"
317 default y
318 help
319 This option allows certain base U-Boot options and settings
320 to be disabled or tweaked. This is for specialized
321 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400322 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100323
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100324if EXPERT
325 config SYS_MALLOC_CLEAR_ON_INIT
326 bool "Init with zeros the memory reserved for malloc (slow)"
327 default y
328 help
329 This setting is enabled by default. The reserved malloc
330 memory is initialized with zeros, so first malloc calls
331 will return the pointer to the zeroed memory. But this
332 slows the boot time.
333
334 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
335 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
336 Then the boot time can be significantly reduced.
337 Warning:
338 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400339 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600340
Marek Bykowski9297e362020-04-29 18:23:07 +0200341config SYS_MALLOC_DEFAULT_TO_INIT
342 bool "Default malloc to init while reserving the memory for it"
Marek Bykowski9297e362020-04-29 18:23:07 +0200343 help
344 It may happen that one needs to move the dynamic allocation
345 from one to another memory range, eg. when moving the malloc
346 from the limited static to a potentially large dynamic (DDR)
347 memory.
348
349 If so then on top of setting the updated memory aside one
350 needs to bring the malloc init.
351
352 If such a scenario is sought choose yes.
353
Simon Glass022885c2016-06-30 10:52:20 -0600354config TOOLS_DEBUG
355 bool "Enable debug information for tools"
356 help
357 Enable generation of debug information for tools such as mkimage.
358 This can be used for debugging purposes. With debug information
359 it is possible to set breakpoints on particular lines, single-step
360 debug through the source code, etc.
361
Robert P. J. Day266aa862017-01-02 16:32:13 -0500362endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900363
364config PHYS_64BIT
365 bool "64bit physical address support"
366 help
367 Say Y here to support 64bit physical memory address.
368 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300369 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900370
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600371config HAS_ROM
372 bool
373 select BINMAN
374 help
375 Enables building of a u-boot.rom target. This collects U-Boot and
376 any necessary binary blobs.
377
Stefan Roese9ea6f712019-04-03 15:24:50 +0200378config SPL_IMAGE
379 string "SPL image used in the combined SPL+U-Boot image"
380 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
381 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500382 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200383 help
384 Select the SPL build target that shall be generated by the SPL
385 build process (default spl/u-boot-spl.bin). This image will be
386 used to generate a combined image with SPL and main U-Boot
387 proper as one single image.
388
Alper Nebi Yasaka8c281d2022-01-29 18:25:30 +0300389config REMAKE_ELF
390 bool "Recreate an ELF image from raw U-Boot binary"
391 help
392 Enable this to recreate an ELF image (u-boot.elf) from the raw
393 U-Boot binary (u-boot.bin), which may already have been statically
394 relocated and may already have a device-tree appended to it.
395
Jagan Tekidc146ca2019-01-18 12:52:49 +0530396config BUILD_TARGET
397 string "Build target special images"
Dalon Westergreene3ada912019-03-20 13:15:21 -0700398 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
399 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Baruch Siach0ef69202019-02-07 13:21:16 +0200400 default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530401 default "u-boot-elf.srec" if RCAR_GEN3
Simon Glassa32dd072020-07-19 13:56:12 -0600402 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Michal Simek5b21d642019-10-02 15:55:57 +0200403 ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
Trevor Woernerbb0fb4c2020-05-06 08:02:40 -0400404 default "u-boot.kwb" if ARCH_KIRKWOOD
Stefan Roese9ea6f712019-04-03 15:24:50 +0200405 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
Stefan Roese4f761dd2019-09-20 18:09:10 +0200406 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530407 help
408 Some SoCs need special image types (e.g. U-Boot binary
409 with a special header) as build targets. By defining
410 CONFIG_BUILD_TARGET in the SoC / board header, this
411 special image will be automatically built upon calling
412 make / buildman.
413
Tom Rini95b64172022-03-30 18:07:11 -0400414config HAS_BOARD_SIZE_LIMIT
415 bool "Define a maximum size for the U-Boot image"
416 default y if RCAR_GEN3
417 help
418 In some cases, we need to enforce a hard limit on how big the U-Boot
419 image itself can be.
420
421config BOARD_SIZE_LIMIT
422 int "Maximum size of the U-Boot image in bytes"
423 default 1048576 if RCAR_GEN3
424 depends on HAS_BOARD_SIZE_LIMIT
425 help
426 Maximum size of the U-Boot image. When defined, the build system
427 checks that the actual size does not exceed it. This does not
428 include SPL nor TPL, on platforms that use that functionality, they
429 have a separate option to restict size.
430
Tom Rinid760a5e2019-06-02 08:57:32 -0400431config SYS_CUSTOM_LDSCRIPT
432 bool "Use a custom location for the U-Boot linker script"
433 help
434 Normally when linking U-Boot we will look in the board directory,
435 the CPU directory and finally the "cpu" directory of the architecture
436 for the ile "u-boot.lds" and use that as our linker. However, in
437 some cases we need to provide a different linker script. To do so,
438 enable this option and then provide the location under
439 CONFIG_SYS_LDSCRIPT.
440
441config SYS_LDSCRIPT
442 depends on SYS_CUSTOM_LDSCRIPT
443 string "Custom ldscript location"
444 help
445 Path within the source tree to the linker script to use for the
446 main U-Boot binary.
447
Tom Rini49c8ef02021-08-23 10:25:31 -0400448config SYS_LOAD_ADDR
449 hex "Address in memory to use by default"
450 default 0x01000000 if ARCH_SOCFPGA
451 default 0x02000000 if PPC || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500452 default 0x81000000 if MACH_SUNIV
Tom Rini49c8ef02021-08-23 10:25:31 -0400453 default 0x22000000 if MACH_SUN9I
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500454 default 0x42000000 if ARCH_SUNXI
Tom Rini49c8ef02021-08-23 10:25:31 -0400455 default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
456 default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
457 default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
458 default 0x80800000 if ARCH_MX7
459 default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
460 help
461 Address in memory to use as the default safe load address.
462
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200463config ERR_PTR_OFFSET
464 hex
465 default 0x0
466 help
467 Some U-Boot pointers have redundant information, so we can use a
468 scheme where we can return either an error code or a pointer with the
469 same return value. The default implementation just casts the pointer
470 to a number, however, this may fail on platforms where the end of the
471 address range is used for valid pointers (e.g. 0xffffff00 is a valid
472 heap pointer in socfpga SPL).
473 For such platforms, this value provides an upper range of those error
474 pointer values - up to 'MAX_ERRNO' bytes below this value must be
475 unused/invalid addresses.
476
Michal Simeke14ba8a2020-03-30 13:58:59 +0200477config PLATFORM_ELFENTRY
478 string
479 default "__start" if MIPS
480 default "_start"
481
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200482config STACK_SIZE
483 hex "Define max stack size that can be used by U-Boot"
484 default 0x4000000 if ARCH_VERSAL || ARCH_ZYNQMP
485 default 0x200000 if MICROBLAZE
486 default 0x1000000
487 help
488 Define Max stack size that can be used by U-Boot. This value is used
489 by the UEFI sub-system. On some boards initrd_high is calculated as
490 base stack pointer minus this stack size.
491
Tom Rini24c904f2022-04-06 10:33:32 -0400492config SYS_MEM_TOP_HIDE
493 hex "Exclude some memory from U-Boot / OS information"
494 default 0x0
495 help
496 If set, this specified memory area will get subtracted from the top
497 (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
498 gd->ram_size the OS / next stage should gets passed the now
499 "corrected" memory size and won't touch it either.
500 WARNING: Please make sure that this value is a multiple of the OS
501 page size.
502
Ovidiu Panait7be19312020-07-24 14:12:09 +0300503config SYS_HAS_SRAM
504 bool
505 default y if TARGET_PIC32MZDASK
506 default y if TARGET_DEVKIT8000
507 default y if TARGET_TRICORDER
Ovidiu Panait7be19312020-07-24 14:12:09 +0300508 help
509 Enable this to allow support for the on board SRAM.
510 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
511 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
512
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300513config SYS_SRAM_BASE
514 hex
515 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait9a17bfb2020-07-24 14:12:12 +0300516 default 0x40200000 if TARGET_DEVKIT8000
517 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300518 default 0x0
519
Ovidiu Panait9f63f022020-07-24 14:12:11 +0300520config SYS_SRAM_SIZE
521 hex
522 default 0x00080000 if TARGET_PIC32MZDASK
523 default 0x10000 if TARGET_DEVKIT8000
524 default 0x10000 if TARGET_TRICORDER
525 default 0x0
526
Ashok Reddy Soma480245c2022-01-17 10:16:50 +0100527config MP
528 bool "Support for multiprocessor"
529 help
530 This provides an option to bringup different processors
531 in multiprocessor cases.
532
Heinrich Schuchardtfc6ef712020-09-23 19:09:51 +0200533config EXAMPLES
534 bool "Compile API examples"
535 depends on !SANDBOX
536 default y if ARCH_QEMU
537 help
538 U-Boot provides an API for standalone applications. Examples are
539 provided in directory examples/.
540
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900541endmenu # General setup
542
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100543source "api/Kconfig"
544
Simon Glass19a91f22021-10-14 12:47:54 -0600545source "boot/Kconfig"
546
Masahiro Yamadaed363232014-09-16 16:32:58 +0900547source "common/Kconfig"
548
Simon Glass72a8cf82016-01-17 20:53:51 -0700549source "cmd/Kconfig"
550
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100551source "disk/Kconfig"
552
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900553source "dts/Kconfig"
554
Simon Glass0649cd02017-08-03 12:21:49 -0600555source "env/Kconfig"
556
Masahiro Yamadaed363232014-09-16 16:32:58 +0900557source "net/Kconfig"
558
559source "drivers/Kconfig"
560
561source "fs/Kconfig"
562
563source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700564
565source "test/Kconfig"
Simon Glass1fa057b2020-09-10 20:21:27 -0600566
567source "tools/Kconfig"