blob: 991b260182e8960c9ed4f560ee7993f2d489b739 [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
Andrew Scull1e578ed2022-05-30 10:00:05 +0000157config ASAN
158 bool "Enable AddressSanitizer"
159 depends on SANDBOX
160 help
161 Enables AddressSanitizer to discover out-of-bounds accesses,
162 use-after-free, double-free and memory leaks.
163
Andrew Scull36f641c2022-05-30 10:00:09 +0000164config FUZZ
165 bool "Enable fuzzing"
166 depends on CC_IS_CLANG
167 depends on DM_FUZZING_ENGINE
168 select ASAN
169 help
170 Enables the fuzzing infrastructure to generate fuzzing data and run
171 fuzz tests.
172
Tom Rini67f51b42020-05-14 08:30:06 -0400173config CC_HAS_ASM_INLINE
174 def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
175
Peng Fan75189732020-08-06 12:42:45 +0300176config XEN
177 bool "Select U-Boot be run as a bootloader for XEN Virtual Machine"
178 help
179 Enabling this option will make U-Boot be run as a bootloader
180 for XEN [1] Virtual Machine.
181
182 Xen is a virtual machine monitor (VMM) or a type-1 hypervisor with support
183 for para-virtualization. Xen can organize the safe execution of several
184 virtual machines on the same physical system with performance close to
185 native. It is used as the basis for a number of different commercial and
186 open source applications, such as: server virtualization, Infrastructure
187 as a Service (IaaS), desktop virtualization, security applications,
188 embedded and hardware appliances.
189 Xen has a special VM called Domain-0 that runs the Dom0 kernel and allows
190 Xen to use the device drivers for the Domain-0 kernel by default.
191
192 [1] - https://xenproject.org/
193
Hans de Goede9f823612016-06-20 23:16:28 +0200194config DISTRO_DEFAULTS
195 bool "Select defaults suitable for booting general purpose Linux distributions"
Michal Simek58008cb2018-07-23 15:55:15 +0200196 select AUTO_COMPLETE
197 select CMDLINE_EDITING
Masahiro Yamada26959272016-08-12 08:31:16 -0400198 select CMD_BOOTI if ARM64
Michal Simek58008cb2018-07-23 15:55:15 +0200199 select CMD_BOOTZ if ARM && !ARM64
Joe Hershbergerba628852018-04-13 15:26:31 -0500200 select CMD_DHCP if CMD_NET
Masahiro Yamadac4f66832018-04-25 19:16:48 +0900201 select CMD_ENV_EXISTS
Hans de Goede9f823612016-06-20 23:16:28 +0200202 select CMD_EXT2
203 select CMD_EXT4
204 select CMD_FAT
205 select CMD_FS_GENERIC
Tom Rinifa2c1462018-02-10 16:54:38 -0500206 select CMD_PART if PARTITIONS
Michal Simek58008cb2018-07-23 15:55:15 +0200207 select CMD_PING if CMD_NET
208 select CMD_PXE if NET
Patrice Chotard993c9122019-11-25 09:07:38 +0100209 select CMD_SYSBOOT
Adam Fordd021e942018-02-06 07:58:59 -0600210 select ENV_VARS_UBOOT_CONFIG
Michal Simek58008cb2018-07-23 15:55:15 +0200211 select HUSH_PARSER
212 select SUPPORT_RAW_INITRD
213 select SYS_LONGHELP
214 imply CMD_MII if NET
Alexander Graf4aa74922018-10-18 09:33:03 +0200215 imply USB_STORAGE
Michal Simek58008cb2018-07-23 15:55:15 +0200216 imply USE_BOOTCOMMAND
Hans de Goede9f823612016-06-20 23:16:28 +0200217 help
218 Select this to enable various options and commands which are suitable
219 for building u-boot for booting general purpose Linux distributions.
220
Adam Fordd021e942018-02-06 07:58:59 -0600221config ENV_VARS_UBOOT_CONFIG
222 bool "Add arch, board, vendor and soc variables to default environment"
223 help
224 Define this in order to add variables describing the
225 U-Boot build configuration to the default environment.
226 These will be named arch, cpu, board, vendor, and soc.
227 Enabling this option will cause the following to be defined:
228 - CONFIG_SYS_ARCH
229 - CONFIG_SYS_CPU
230 - CONFIG_SYS_BOARD
231 - CONFIG_SYS_VENDOR
232 - CONFIG_SYS_SOC
233
Ramon Fried999a7722018-08-14 01:00:04 +0300234config NR_DRAM_BANKS
235 int "Number of DRAM banks"
Amit Singh Tomard5c819b2020-04-19 19:28:34 +0530236 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried999a7722018-08-14 01:00:04 +0300237 default 4
238 help
239 This defines the number of DRAM banks.
240
Derald D. Woods405fc832018-01-22 17:17:10 -0600241config SYS_BOOT_GET_CMDLINE
242 bool "Enable kernel command line setup"
243 help
244 Enables allocating and saving kernel cmdline in space between
245 "bootm_low" and "bootm_low" + BOOTMAPSZ.
246
Tom Rini68894122022-05-12 10:02:06 -0400247config SYS_BARGSIZE
248 int "Size of kernel command line buffer in bytes"
249 depends on SYS_BOOT_GET_CMDLINE
250 default 512
251 help
252 Buffer size for Boot Arguments which are passed to the application
253 (usually a Linux kernel) when it is booted
254
Derald D. Woods405fc832018-01-22 17:17:10 -0600255config SYS_BOOT_GET_KBD
256 bool "Enable kernel board information setup"
257 help
258 Enables allocating and saving a kernel copy of the bd_info in
259 space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
260
Tom Rinieaf6ea62022-05-25 12:16:03 -0400261config HAS_CUSTOM_SYS_INIT_SP_ADDR
262 bool "Use a custom location for the initial stack pointer address"
263 depends on ARC || (ARM && !INIT_SP_RELATIVE) || MIPS || PPC || RISCV
264 default y if TFABOOT
265 help
266 Typically, we use an initial stack pointer address that is calculated
267 by taking the statically defined CONFIG_SYS_INIT_RAM_ADDR, adding the
268 statically defined CONFIG_SYS_INIT_RAM_SIZE and then subtracting the
269 build-time constant of GENERATED_GBL_DATA_SIZE. On MIPS a different
270 but statica calculation is performed. However, some platforms will
271 take a different approach. Say Y here to define the address statically
272 instead.
273
274config CUSTOM_SYS_INIT_SP_ADDR
275 hex "Static location for the initial stack pointer"
276 depends on HAS_CUSTOM_SYS_INIT_SP_ADDR
277 default SYS_TEXT_BASE if TFABOOT
278
Simon Glassb724bd72015-02-11 16:32:59 -0700279config SYS_MALLOC_F
280 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +0900281 default y if DM
Simon Glass15a5c722018-12-03 04:37:17 -0700282
Simon Glassb724bd72015-02-11 16:32:59 -0700283 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400284 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700285 we can provide a small malloc() pool if needed. Driver model in
286 particular needs this to operate, so that it can allocate the
287 initial serial device and any others that are needed.
288
289config SYS_MALLOC_F_LEN
290 hex "Size of malloc() pool before relocation"
291 depends on SYS_MALLOC_F
Tom Rinie0568922022-04-07 12:33:23 -0400292 default 0x400 if M68K || PPC || ROCKCHIP_PX30 || ROCKCHIP_RK3036 || \
293 ROCKCHIP_RK3308 || ROCKCHIP_RV1108
294 default 0x600 if ARCH_ZYNQMP_R5 || ARCH_ZYNQMP
295 default 0x800 if ARCH_ZYNQ || ROCKCHIP_RK3128 || ROCKCHIP_RK3188 || \
296 ROCKCHIP_RK322X || X86
Tom Rini4448d0c2022-04-07 12:33:24 -0400297 default 0x1000 if ARCH_MESON || ARCH_BMIPS || ARCH_MTMIPS
Tom Rinie0568922022-04-07 12:33:23 -0400298 default 0x1800 if ARCH_TEGRA
299 default 0x4000 if SANDBOX || RISCV || ARCH_APPLE || ROCKCHIP_RK3368 || \
300 ROCKCHIP_RK3399
301 default 0x8000 if RCAR_GEN3
Sean Anderson3166e6f2022-04-28 12:39:49 -0400302 default 0x10000 if ARCH_IMX8 || (ARCH_IMX8M && !IMX8MQ)
Tom Rinie0568922022-04-07 12:33:23 -0400303 default 0x2000
Simon Glassb724bd72015-02-11 16:32:59 -0700304 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400305 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700306 we can provide a small malloc() pool if needed. Driver model in
307 particular needs this to operate, so that it can allocate the
308 initial serial device and any others that are needed.
309
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530310config SYS_MALLOC_LEN
311 hex "Define memory for Dynamic allocation"
Tom Rini46d940c2022-04-14 11:34:47 -0400312 default 0x4000000 if SANDBOX
Tom Rini7cfbba32021-08-28 21:34:49 -0400313 default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
Tom Rini7cfbba32021-08-28 21:34:49 -0400314 default 0x200000 if ARCH_BMIPS || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500315 default 0x120000 if MACH_SUNIV
316 default 0x220000 if MACH_SUN8I_V3S
317 default 0x4020000 if ARCH_SUNXI
Tom Rini7cfbba32021-08-28 21:34:49 -0400318 default 0x400000
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530319 help
320 This defines memory to be allocated for Dynamic allocation
321 TODO: Use for other architectures
322
Andy Yanf1896c42017-07-24 17:43:34 +0800323config SPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700324 hex "Size of malloc() pool in SPL"
Adam Ford05705562019-08-13 14:32:30 -0500325 depends on SYS_MALLOC_F && SPL
Pali RohĂĄrb6169472022-04-08 10:28:05 +0200326 default 0 if !SPL_FRAMEWORK
Marek Vasut56023302018-10-03 12:44:13 +0200327 default 0x2800 if RCAR_GEN3
Michal Simek14aa2102018-07-24 14:47:43 +0200328 default SYS_MALLOC_F_LEN
329 help
Simon Glass14261742021-01-21 13:57:06 -0700330 In SPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200331 we can provide a small malloc() pool if needed. Driver model in
332 particular needs this to operate, so that it can allocate the
333 initial serial device and any others that are needed.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200334
Simon Glass14261742021-01-21 13:57:06 -0700335 It is possible to enable CONFIG_SYS_SPL_MALLOC_START to start a new
336 malloc() region in SDRAM once it is inited.
337
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200338config TPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700339 hex "Size of malloc() pool in TPL"
Adam Ford05705562019-08-13 14:32:30 -0500340 depends on SYS_MALLOC_F && TPL
Simon Glass14261742021-01-21 13:57:06 -0700341 default SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200342 help
Simon Glass14261742021-01-21 13:57:06 -0700343 In TPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200344 we can provide a small malloc() pool if needed. Driver model in
345 particular needs this to operate, so that it can allocate the
346 initial serial device and any others that are needed.
Andy Yanf1896c42017-07-24 17:43:34 +0800347
Sean Andersonfba08822022-03-23 14:04:48 -0400348config VALGRIND
349 bool "Inform valgrind about memory allocations"
Sean Anderson1e5514f2022-05-27 10:03:00 -0400350 depends on !RISCV
Sean Andersonfba08822022-03-23 14:04:48 -0400351 help
352 Valgrind is an instrumentation framework for building dynamic analysis
353 tools. In particular, it may be used to detect memory management bugs
354 in U-Boot. It relies on knowing when heap blocks are allocated in
355 order to give accurate results. This happens automatically for
356 standard allocator functions provided by the host OS. However, this
357 doesn't automatically happen for U-Boot's malloc implementation.
358
359 Enable this option to annotate U-Boot's malloc implementation so that
360 it can be handled accurately by Valgrind. If you aren't planning on
361 using valgrind to debug U-Boot, say 'n'.
362
Simon Glass747093d2022-04-30 00:56:53 -0600363config VPL_SYS_MALLOC_F_LEN
364 hex "Size of malloc() pool in VPL before relocation"
365 depends on SYS_MALLOC_F && VPL
366 default SYS_MALLOC_F_LEN
367 help
368 Before relocation, memory is very limited on many platforms. Still,
369 we can provide a small malloc() pool if needed. Driver model in
370 particular needs this to operate, so that it can allocate the
371 initial serial device and any others that are needed.
372
Tom Rini1bf09792014-11-14 09:34:29 +0100373menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100374 bool "Configure standard U-Boot features (expert users)"
375 default y
376 help
377 This option allows certain base U-Boot options and settings
378 to be disabled or tweaked. This is for specialized
379 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400380 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100381
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100382if EXPERT
383 config SYS_MALLOC_CLEAR_ON_INIT
384 bool "Init with zeros the memory reserved for malloc (slow)"
385 default y
386 help
387 This setting is enabled by default. The reserved malloc
388 memory is initialized with zeros, so first malloc calls
389 will return the pointer to the zeroed memory. But this
390 slows the boot time.
391
392 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
393 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
394 Then the boot time can be significantly reduced.
395 Warning:
396 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400397 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600398
Marek Bykowski9297e362020-04-29 18:23:07 +0200399config SYS_MALLOC_DEFAULT_TO_INIT
400 bool "Default malloc to init while reserving the memory for it"
Marek Bykowski9297e362020-04-29 18:23:07 +0200401 help
402 It may happen that one needs to move the dynamic allocation
403 from one to another memory range, eg. when moving the malloc
404 from the limited static to a potentially large dynamic (DDR)
405 memory.
406
407 If so then on top of setting the updated memory aside one
408 needs to bring the malloc init.
409
410 If such a scenario is sought choose yes.
411
Simon Glass022885c2016-06-30 10:52:20 -0600412config TOOLS_DEBUG
413 bool "Enable debug information for tools"
414 help
415 Enable generation of debug information for tools such as mkimage.
416 This can be used for debugging purposes. With debug information
417 it is possible to set breakpoints on particular lines, single-step
418 debug through the source code, etc.
419
Robert P. J. Day266aa862017-01-02 16:32:13 -0500420endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900421
422config PHYS_64BIT
423 bool "64bit physical address support"
424 help
425 Say Y here to support 64bit physical memory address.
426 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300427 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900428
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600429config HAS_ROM
430 bool
431 select BINMAN
432 help
433 Enables building of a u-boot.rom target. This collects U-Boot and
434 any necessary binary blobs.
435
Stefan Roese9ea6f712019-04-03 15:24:50 +0200436config SPL_IMAGE
437 string "SPL image used in the combined SPL+U-Boot image"
438 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
439 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500440 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200441 help
442 Select the SPL build target that shall be generated by the SPL
443 build process (default spl/u-boot-spl.bin). This image will be
444 used to generate a combined image with SPL and main U-Boot
445 proper as one single image.
446
Alper Nebi Yasaka8c281d2022-01-29 18:25:30 +0300447config REMAKE_ELF
448 bool "Recreate an ELF image from raw U-Boot binary"
449 help
450 Enable this to recreate an ELF image (u-boot.elf) from the raw
451 U-Boot binary (u-boot.bin), which may already have been statically
452 relocated and may already have a device-tree appended to it.
453
Jagan Tekidc146ca2019-01-18 12:52:49 +0530454config BUILD_TARGET
455 string "Build target special images"
Dalon Westergreene3ada912019-03-20 13:15:21 -0700456 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
457 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Baruch Siach0ef69202019-02-07 13:21:16 +0200458 default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530459 default "u-boot-elf.srec" if RCAR_GEN3
Simon Glassa32dd072020-07-19 13:56:12 -0600460 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Michal Simek5b21d642019-10-02 15:55:57 +0200461 ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
Trevor Woernerbb0fb4c2020-05-06 08:02:40 -0400462 default "u-boot.kwb" if ARCH_KIRKWOOD
Stefan Roese9ea6f712019-04-03 15:24:50 +0200463 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
Stefan Roese4f761dd2019-09-20 18:09:10 +0200464 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530465 help
466 Some SoCs need special image types (e.g. U-Boot binary
467 with a special header) as build targets. By defining
468 CONFIG_BUILD_TARGET in the SoC / board header, this
469 special image will be automatically built upon calling
470 make / buildman.
471
Tom Rini95b64172022-03-30 18:07:11 -0400472config HAS_BOARD_SIZE_LIMIT
473 bool "Define a maximum size for the U-Boot image"
474 default y if RCAR_GEN3
475 help
476 In some cases, we need to enforce a hard limit on how big the U-Boot
477 image itself can be.
478
479config BOARD_SIZE_LIMIT
480 int "Maximum size of the U-Boot image in bytes"
481 default 1048576 if RCAR_GEN3
482 depends on HAS_BOARD_SIZE_LIMIT
483 help
484 Maximum size of the U-Boot image. When defined, the build system
485 checks that the actual size does not exceed it. This does not
486 include SPL nor TPL, on platforms that use that functionality, they
487 have a separate option to restict size.
488
Tom Rinid760a5e2019-06-02 08:57:32 -0400489config SYS_CUSTOM_LDSCRIPT
490 bool "Use a custom location for the U-Boot linker script"
491 help
492 Normally when linking U-Boot we will look in the board directory,
493 the CPU directory and finally the "cpu" directory of the architecture
494 for the ile "u-boot.lds" and use that as our linker. However, in
495 some cases we need to provide a different linker script. To do so,
496 enable this option and then provide the location under
497 CONFIG_SYS_LDSCRIPT.
498
499config SYS_LDSCRIPT
500 depends on SYS_CUSTOM_LDSCRIPT
501 string "Custom ldscript location"
502 help
503 Path within the source tree to the linker script to use for the
504 main U-Boot binary.
505
Tom Rini49c8ef02021-08-23 10:25:31 -0400506config SYS_LOAD_ADDR
507 hex "Address in memory to use by default"
508 default 0x01000000 if ARCH_SOCFPGA
509 default 0x02000000 if PPC || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500510 default 0x81000000 if MACH_SUNIV
Tom Rini49c8ef02021-08-23 10:25:31 -0400511 default 0x22000000 if MACH_SUN9I
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500512 default 0x42000000 if ARCH_SUNXI
Tom Rini49c8ef02021-08-23 10:25:31 -0400513 default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
514 default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
515 default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
516 default 0x80800000 if ARCH_MX7
517 default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
518 help
519 Address in memory to use as the default safe load address.
520
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200521config ERR_PTR_OFFSET
522 hex
523 default 0x0
524 help
525 Some U-Boot pointers have redundant information, so we can use a
526 scheme where we can return either an error code or a pointer with the
527 same return value. The default implementation just casts the pointer
528 to a number, however, this may fail on platforms where the end of the
529 address range is used for valid pointers (e.g. 0xffffff00 is a valid
530 heap pointer in socfpga SPL).
531 For such platforms, this value provides an upper range of those error
532 pointer values - up to 'MAX_ERRNO' bytes below this value must be
533 unused/invalid addresses.
534
Michal Simeke14ba8a2020-03-30 13:58:59 +0200535config PLATFORM_ELFENTRY
536 string
537 default "__start" if MIPS
538 default "_start"
539
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200540config STACK_SIZE
541 hex "Define max stack size that can be used by U-Boot"
542 default 0x4000000 if ARCH_VERSAL || ARCH_ZYNQMP
543 default 0x200000 if MICROBLAZE
544 default 0x1000000
545 help
546 Define Max stack size that can be used by U-Boot. This value is used
547 by the UEFI sub-system. On some boards initrd_high is calculated as
548 base stack pointer minus this stack size.
549
Tom Rini24c904f2022-04-06 10:33:32 -0400550config SYS_MEM_TOP_HIDE
551 hex "Exclude some memory from U-Boot / OS information"
552 default 0x0
553 help
554 If set, this specified memory area will get subtracted from the top
555 (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
556 gd->ram_size the OS / next stage should gets passed the now
557 "corrected" memory size and won't touch it either.
558 WARNING: Please make sure that this value is a multiple of the OS
559 page size.
560
Ovidiu Panait7be19312020-07-24 14:12:09 +0300561config SYS_HAS_SRAM
562 bool
563 default y if TARGET_PIC32MZDASK
564 default y if TARGET_DEVKIT8000
565 default y if TARGET_TRICORDER
Ovidiu Panait7be19312020-07-24 14:12:09 +0300566 help
567 Enable this to allow support for the on board SRAM.
568 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
569 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
570
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300571config SYS_SRAM_BASE
572 hex
573 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait9a17bfb2020-07-24 14:12:12 +0300574 default 0x40200000 if TARGET_DEVKIT8000
575 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300576 default 0x0
577
Ovidiu Panait9f63f022020-07-24 14:12:11 +0300578config SYS_SRAM_SIZE
579 hex
580 default 0x00080000 if TARGET_PIC32MZDASK
581 default 0x10000 if TARGET_DEVKIT8000
582 default 0x10000 if TARGET_TRICORDER
583 default 0x0
584
Ashok Reddy Soma480245c2022-01-17 10:16:50 +0100585config MP
586 bool "Support for multiprocessor"
587 help
588 This provides an option to bringup different processors
589 in multiprocessor cases.
590
Heinrich Schuchardtfc6ef712020-09-23 19:09:51 +0200591config EXAMPLES
592 bool "Compile API examples"
593 depends on !SANDBOX
594 default y if ARCH_QEMU
595 help
596 U-Boot provides an API for standalone applications. Examples are
597 provided in directory examples/.
598
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900599endmenu # General setup
600
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100601source "api/Kconfig"
602
Simon Glass19a91f22021-10-14 12:47:54 -0600603source "boot/Kconfig"
604
Masahiro Yamadaed363232014-09-16 16:32:58 +0900605source "common/Kconfig"
606
Simon Glass72a8cf82016-01-17 20:53:51 -0700607source "cmd/Kconfig"
608
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100609source "disk/Kconfig"
610
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900611source "dts/Kconfig"
612
Simon Glass0649cd02017-08-03 12:21:49 -0600613source "env/Kconfig"
614
Masahiro Yamadaed363232014-09-16 16:32:58 +0900615source "net/Kconfig"
616
617source "drivers/Kconfig"
618
619source "fs/Kconfig"
620
621source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700622
623source "test/Kconfig"
Simon Glass1fa057b2020-09-10 20:21:27 -0600624
625source "tools/Kconfig"