blob: b8f65589f457cd5c1ceaef57c4a19bc59427e217 [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
Adam Fordd021e942018-02-06 07:58:59 -0600194config ENV_VARS_UBOOT_CONFIG
195 bool "Add arch, board, vendor and soc variables to default environment"
196 help
197 Define this in order to add variables describing the
198 U-Boot build configuration to the default environment.
199 These will be named arch, cpu, board, vendor, and soc.
200 Enabling this option will cause the following to be defined:
201 - CONFIG_SYS_ARCH
202 - CONFIG_SYS_CPU
203 - CONFIG_SYS_BOARD
204 - CONFIG_SYS_VENDOR
205 - CONFIG_SYS_SOC
206
Ramon Fried999a7722018-08-14 01:00:04 +0300207config NR_DRAM_BANKS
208 int "Number of DRAM banks"
Amit Singh Tomard5c819b2020-04-19 19:28:34 +0530209 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried999a7722018-08-14 01:00:04 +0300210 default 4
211 help
212 This defines the number of DRAM banks.
213
Derald D. Woods405fc832018-01-22 17:17:10 -0600214config SYS_BOOT_GET_CMDLINE
215 bool "Enable kernel command line setup"
216 help
217 Enables allocating and saving kernel cmdline in space between
218 "bootm_low" and "bootm_low" + BOOTMAPSZ.
219
Tom Rini68894122022-05-12 10:02:06 -0400220config SYS_BARGSIZE
221 int "Size of kernel command line buffer in bytes"
222 depends on SYS_BOOT_GET_CMDLINE
223 default 512
224 help
225 Buffer size for Boot Arguments which are passed to the application
226 (usually a Linux kernel) when it is booted
227
Derald D. Woods405fc832018-01-22 17:17:10 -0600228config SYS_BOOT_GET_KBD
229 bool "Enable kernel board information setup"
230 help
231 Enables allocating and saving a kernel copy of the bd_info in
232 space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
233
Tom Rinieaf6ea62022-05-25 12:16:03 -0400234config HAS_CUSTOM_SYS_INIT_SP_ADDR
235 bool "Use a custom location for the initial stack pointer address"
236 depends on ARC || (ARM && !INIT_SP_RELATIVE) || MIPS || PPC || RISCV
237 default y if TFABOOT
238 help
239 Typically, we use an initial stack pointer address that is calculated
Tom Rini65cc0e22022-11-16 13:10:41 -0500240 by taking the statically defined CFG_SYS_INIT_RAM_ADDR, adding the
241 statically defined CFG_SYS_INIT_RAM_SIZE and then subtracting the
Tom Rinieaf6ea62022-05-25 12:16:03 -0400242 build-time constant of GENERATED_GBL_DATA_SIZE. On MIPS a different
243 but statica calculation is performed. However, some platforms will
244 take a different approach. Say Y here to define the address statically
245 instead.
246
247config CUSTOM_SYS_INIT_SP_ADDR
248 hex "Static location for the initial stack pointer"
249 depends on HAS_CUSTOM_SYS_INIT_SP_ADDR
Simon Glass98463902022-10-20 18:22:39 -0600250 default TEXT_BASE if TFABOOT
Tom Rinieaf6ea62022-05-25 12:16:03 -0400251
Simon Glassb724bd72015-02-11 16:32:59 -0700252config SYS_MALLOC_F
253 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +0900254 default y if DM
Simon Glass15a5c722018-12-03 04:37:17 -0700255
Simon Glassb724bd72015-02-11 16:32:59 -0700256 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400257 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700258 we can provide a small malloc() pool if needed. Driver model in
259 particular needs this to operate, so that it can allocate the
260 initial serial device and any others that are needed.
261
262config SYS_MALLOC_F_LEN
263 hex "Size of malloc() pool before relocation"
264 depends on SYS_MALLOC_F
Tom Rinie0568922022-04-07 12:33:23 -0400265 default 0x400 if M68K || PPC || ROCKCHIP_PX30 || ROCKCHIP_RK3036 || \
266 ROCKCHIP_RK3308 || ROCKCHIP_RV1108
267 default 0x600 if ARCH_ZYNQMP_R5 || ARCH_ZYNQMP
268 default 0x800 if ARCH_ZYNQ || ROCKCHIP_RK3128 || ROCKCHIP_RK3188 || \
269 ROCKCHIP_RK322X || X86
Tom Rini4448d0c2022-04-07 12:33:24 -0400270 default 0x1000 if ARCH_MESON || ARCH_BMIPS || ARCH_MTMIPS
Tom Rinie0568922022-04-07 12:33:23 -0400271 default 0x1800 if ARCH_TEGRA
272 default 0x4000 if SANDBOX || RISCV || ARCH_APPLE || ROCKCHIP_RK3368 || \
273 ROCKCHIP_RK3399
274 default 0x8000 if RCAR_GEN3
Peng Fan19ed25b2022-09-15 09:38:18 +0800275 default 0x10000 if ARCH_IMX8 || ARCH_IMX8M
Tom Rinie0568922022-04-07 12:33:23 -0400276 default 0x2000
Simon Glassb724bd72015-02-11 16:32:59 -0700277 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400278 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700279 we can provide a small malloc() pool if needed. Driver model in
280 particular needs this to operate, so that it can allocate the
281 initial serial device and any others that are needed.
282
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530283config SYS_MALLOC_LEN
284 hex "Define memory for Dynamic allocation"
Tom Rini46d940c2022-04-14 11:34:47 -0400285 default 0x4000000 if SANDBOX
Tom Rini7cfbba32021-08-28 21:34:49 -0400286 default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
Tom Rini7cfbba32021-08-28 21:34:49 -0400287 default 0x200000 if ARCH_BMIPS || X86
Andre Przywara1bf98bd2022-07-03 00:47:20 +0100288 default 0x4020000 if SUNXI_MINIMUM_DRAM_MB >= 256
289 default 0x220000 if SUNXI_MINIMUM_DRAM_MB >= 64
290 default 0x120000 if SUNXI_MINIMUM_DRAM_MB >= 32
Tom Rini7cfbba32021-08-28 21:34:49 -0400291 default 0x400000
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530292 help
293 This defines memory to be allocated for Dynamic allocation
294 TODO: Use for other architectures
295
Andy Yanf1896c42017-07-24 17:43:34 +0800296config SPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700297 hex "Size of malloc() pool in SPL"
Adam Ford05705562019-08-13 14:32:30 -0500298 depends on SYS_MALLOC_F && SPL
Pali RohĂĄrb6169472022-04-08 10:28:05 +0200299 default 0 if !SPL_FRAMEWORK
Marek Vasut56023302018-10-03 12:44:13 +0200300 default 0x2800 if RCAR_GEN3
Peng Fan19ed25b2022-09-15 09:38:18 +0800301 default 0x2000 if IMX8MQ
Michal Simek14aa2102018-07-24 14:47:43 +0200302 default SYS_MALLOC_F_LEN
303 help
Simon Glass14261742021-01-21 13:57:06 -0700304 In SPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200305 we can provide a small malloc() pool if needed. Driver model in
306 particular needs this to operate, so that it can allocate the
307 initial serial device and any others that are needed.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200308
Tom Rini65cc0e22022-11-16 13:10:41 -0500309 It is possible to enable CFG_SYS_SPL_MALLOC_START to start a new
Simon Glass14261742021-01-21 13:57:06 -0700310 malloc() region in SDRAM once it is inited.
311
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200312config TPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700313 hex "Size of malloc() pool in TPL"
Adam Ford05705562019-08-13 14:32:30 -0500314 depends on SYS_MALLOC_F && TPL
Simon Glass14261742021-01-21 13:57:06 -0700315 default SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200316 help
Simon Glass14261742021-01-21 13:57:06 -0700317 In TPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200318 we can provide a small malloc() pool if needed. Driver model in
319 particular needs this to operate, so that it can allocate the
320 initial serial device and any others that are needed.
Andy Yanf1896c42017-07-24 17:43:34 +0800321
Sean Andersonfba08822022-03-23 14:04:48 -0400322config VALGRIND
323 bool "Inform valgrind about memory allocations"
Sean Anderson1e5514f2022-05-27 10:03:00 -0400324 depends on !RISCV
Sean Andersonfba08822022-03-23 14:04:48 -0400325 help
326 Valgrind is an instrumentation framework for building dynamic analysis
327 tools. In particular, it may be used to detect memory management bugs
328 in U-Boot. It relies on knowing when heap blocks are allocated in
329 order to give accurate results. This happens automatically for
330 standard allocator functions provided by the host OS. However, this
331 doesn't automatically happen for U-Boot's malloc implementation.
332
333 Enable this option to annotate U-Boot's malloc implementation so that
334 it can be handled accurately by Valgrind. If you aren't planning on
335 using valgrind to debug U-Boot, say 'n'.
336
Simon Glass747093d2022-04-30 00:56:53 -0600337config VPL_SYS_MALLOC_F_LEN
338 hex "Size of malloc() pool in VPL before relocation"
339 depends on SYS_MALLOC_F && VPL
340 default SYS_MALLOC_F_LEN
341 help
342 Before relocation, memory is very limited on many platforms. Still,
343 we can provide a small malloc() pool if needed. Driver model in
344 particular needs this to operate, so that it can allocate the
345 initial serial device and any others that are needed.
346
Tom Rini1bf09792014-11-14 09:34:29 +0100347menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100348 bool "Configure standard U-Boot features (expert users)"
349 default y
350 help
351 This option allows certain base U-Boot options and settings
352 to be disabled or tweaked. This is for specialized
353 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400354 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100355
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100356if EXPERT
357 config SYS_MALLOC_CLEAR_ON_INIT
358 bool "Init with zeros the memory reserved for malloc (slow)"
359 default y
360 help
361 This setting is enabled by default. The reserved malloc
362 memory is initialized with zeros, so first malloc calls
363 will return the pointer to the zeroed memory. But this
364 slows the boot time.
365
366 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
367 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
368 Then the boot time can be significantly reduced.
369 Warning:
370 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400371 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600372
Marek Bykowski9297e362020-04-29 18:23:07 +0200373config SYS_MALLOC_DEFAULT_TO_INIT
374 bool "Default malloc to init while reserving the memory for it"
Marek Bykowski9297e362020-04-29 18:23:07 +0200375 help
376 It may happen that one needs to move the dynamic allocation
377 from one to another memory range, eg. when moving the malloc
378 from the limited static to a potentially large dynamic (DDR)
379 memory.
380
381 If so then on top of setting the updated memory aside one
382 needs to bring the malloc init.
383
384 If such a scenario is sought choose yes.
385
Simon Glass022885c2016-06-30 10:52:20 -0600386config TOOLS_DEBUG
387 bool "Enable debug information for tools"
388 help
389 Enable generation of debug information for tools such as mkimage.
390 This can be used for debugging purposes. With debug information
391 it is possible to set breakpoints on particular lines, single-step
392 debug through the source code, etc.
393
Robert P. J. Day266aa862017-01-02 16:32:13 -0500394endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900395
396config PHYS_64BIT
397 bool "64bit physical address support"
398 help
399 Say Y here to support 64bit physical memory address.
400 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300401 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900402
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600403config HAS_ROM
404 bool
405 select BINMAN
406 help
407 Enables building of a u-boot.rom target. This collects U-Boot and
408 any necessary binary blobs.
409
Stefan Roese9ea6f712019-04-03 15:24:50 +0200410config SPL_IMAGE
411 string "SPL image used in the combined SPL+U-Boot image"
412 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
413 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500414 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200415 help
416 Select the SPL build target that shall be generated by the SPL
417 build process (default spl/u-boot-spl.bin). This image will be
418 used to generate a combined image with SPL and main U-Boot
419 proper as one single image.
420
Alper Nebi Yasaka8c281d2022-01-29 18:25:30 +0300421config REMAKE_ELF
422 bool "Recreate an ELF image from raw U-Boot binary"
423 help
424 Enable this to recreate an ELF image (u-boot.elf) from the raw
425 U-Boot binary (u-boot.bin), which may already have been statically
426 relocated and may already have a device-tree appended to it.
427
Jagan Tekidc146ca2019-01-18 12:52:49 +0530428config BUILD_TARGET
429 string "Build target special images"
Dalon Westergreene3ada912019-03-20 13:15:21 -0700430 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
431 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Pali RohĂĄrf0b1a1e2022-12-29 02:39:19 +0100432 default "u-boot-with-spl.kwb" if ARMADA_32BIT && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530433 default "u-boot-elf.srec" if RCAR_GEN3
Simon Glassa32dd072020-07-19 13:56:12 -0600434 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Michal Simek5b21d642019-10-02 15:55:57 +0200435 ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
Pali RohĂĄrf0b1a1e2022-12-29 02:39:19 +0100436 default "u-boot.kwb" if (ARCH_KIRKWOOD || ARMADA_32BIT) && !SPL
Pali RohĂĄre0025d92022-12-29 02:39:20 +0100437 default "u-boot-with-spl.bin" if MPC85xx && !E500MC && !E5500 && !E6500 && SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200438 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
Stefan Roese4f761dd2019-09-20 18:09:10 +0200439 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530440 help
441 Some SoCs need special image types (e.g. U-Boot binary
442 with a special header) as build targets. By defining
443 CONFIG_BUILD_TARGET in the SoC / board header, this
444 special image will be automatically built upon calling
445 make / buildman.
446
Tom Rini95b64172022-03-30 18:07:11 -0400447config HAS_BOARD_SIZE_LIMIT
448 bool "Define a maximum size for the U-Boot image"
449 default y if RCAR_GEN3
450 help
451 In some cases, we need to enforce a hard limit on how big the U-Boot
452 image itself can be.
453
454config BOARD_SIZE_LIMIT
455 int "Maximum size of the U-Boot image in bytes"
456 default 1048576 if RCAR_GEN3
457 depends on HAS_BOARD_SIZE_LIMIT
458 help
459 Maximum size of the U-Boot image. When defined, the build system
460 checks that the actual size does not exceed it. This does not
461 include SPL nor TPL, on platforms that use that functionality, they
462 have a separate option to restict size.
463
Tom Rinid760a5e2019-06-02 08:57:32 -0400464config SYS_CUSTOM_LDSCRIPT
465 bool "Use a custom location for the U-Boot linker script"
466 help
467 Normally when linking U-Boot we will look in the board directory,
468 the CPU directory and finally the "cpu" directory of the architecture
469 for the ile "u-boot.lds" and use that as our linker. However, in
470 some cases we need to provide a different linker script. To do so,
471 enable this option and then provide the location under
472 CONFIG_SYS_LDSCRIPT.
473
474config SYS_LDSCRIPT
475 depends on SYS_CUSTOM_LDSCRIPT
476 string "Custom ldscript location"
477 help
478 Path within the source tree to the linker script to use for the
479 main U-Boot binary.
480
Tom Rini49c8ef02021-08-23 10:25:31 -0400481config SYS_LOAD_ADDR
482 hex "Address in memory to use by default"
483 default 0x01000000 if ARCH_SOCFPGA
484 default 0x02000000 if PPC || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500485 default 0x81000000 if MACH_SUNIV
Tom Rini49c8ef02021-08-23 10:25:31 -0400486 default 0x22000000 if MACH_SUN9I
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500487 default 0x42000000 if ARCH_SUNXI
Tom Rini49c8ef02021-08-23 10:25:31 -0400488 default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
489 default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
490 default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
491 default 0x80800000 if ARCH_MX7
492 default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
493 help
494 Address in memory to use as the default safe load address.
495
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200496config ERR_PTR_OFFSET
497 hex
498 default 0x0
499 help
500 Some U-Boot pointers have redundant information, so we can use a
501 scheme where we can return either an error code or a pointer with the
502 same return value. The default implementation just casts the pointer
503 to a number, however, this may fail on platforms where the end of the
504 address range is used for valid pointers (e.g. 0xffffff00 is a valid
505 heap pointer in socfpga SPL).
506 For such platforms, this value provides an upper range of those error
507 pointer values - up to 'MAX_ERRNO' bytes below this value must be
508 unused/invalid addresses.
509
Michal Simeke14ba8a2020-03-30 13:58:59 +0200510config PLATFORM_ELFENTRY
511 string
512 default "__start" if MIPS
513 default "_start"
514
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200515config STACK_SIZE
516 hex "Define max stack size that can be used by U-Boot"
Michal Simekf6aebdf2022-09-19 14:21:02 +0200517 default 0x4000000 if ARCH_VERSAL_NET || ARCH_VERSAL || ARCH_ZYNQMP
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200518 default 0x200000 if MICROBLAZE
519 default 0x1000000
520 help
521 Define Max stack size that can be used by U-Boot. This value is used
522 by the UEFI sub-system. On some boards initrd_high is calculated as
523 base stack pointer minus this stack size.
524
Tom Rini24c904f2022-04-06 10:33:32 -0400525config SYS_MEM_TOP_HIDE
526 hex "Exclude some memory from U-Boot / OS information"
527 default 0x0
528 help
529 If set, this specified memory area will get subtracted from the top
530 (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
531 gd->ram_size the OS / next stage should gets passed the now
532 "corrected" memory size and won't touch it either.
533 WARNING: Please make sure that this value is a multiple of the OS
534 page size.
535
Ovidiu Panait7be19312020-07-24 14:12:09 +0300536config SYS_HAS_SRAM
537 bool
538 default y if TARGET_PIC32MZDASK
539 default y if TARGET_DEVKIT8000
540 default y if TARGET_TRICORDER
Ovidiu Panait7be19312020-07-24 14:12:09 +0300541 help
542 Enable this to allow support for the on board SRAM.
543 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
544 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
545
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300546config SYS_SRAM_BASE
547 hex
548 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait9a17bfb2020-07-24 14:12:12 +0300549 default 0x40200000 if TARGET_DEVKIT8000
550 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300551 default 0x0
552
Ovidiu Panait9f63f022020-07-24 14:12:11 +0300553config SYS_SRAM_SIZE
554 hex
555 default 0x00080000 if TARGET_PIC32MZDASK
556 default 0x10000 if TARGET_DEVKIT8000
557 default 0x10000 if TARGET_TRICORDER
558 default 0x0
559
Tom Rini08574ed2022-10-28 20:27:07 -0400560config SYS_MONITOR_LEN
561 int "Maximum size in bytes reserved for U-Boot in memory"
562 default 1048576 if X86
Andre Przywarab072aef2022-11-19 16:10:59 +0000563 default 786432 if ARCH_SUNXI
Tom Rini08574ed2022-10-28 20:27:07 -0400564 default 0
565 help
566 Size of memory reserved for monitor code, used to determine
567 _at_compile_time_ (!) if the environment is embedded within the
568 U-Boot image, or in a separate flash sector, among other uses where
569 we need to set a maximum size of the U-Boot binary itself that will
570 be loaded.
571
Ashok Reddy Soma480245c2022-01-17 10:16:50 +0100572config MP
573 bool "Support for multiprocessor"
574 help
575 This provides an option to bringup different processors
576 in multiprocessor cases.
577
Heinrich Schuchardtfc6ef712020-09-23 19:09:51 +0200578config EXAMPLES
579 bool "Compile API examples"
580 depends on !SANDBOX
581 default y if ARCH_QEMU
582 help
583 U-Boot provides an API for standalone applications. Examples are
584 provided in directory examples/.
585
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900586endmenu # General setup
587
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100588source "api/Kconfig"
589
Simon Glass19a91f22021-10-14 12:47:54 -0600590source "boot/Kconfig"
591
Masahiro Yamadaed363232014-09-16 16:32:58 +0900592source "common/Kconfig"
593
Simon Glass72a8cf82016-01-17 20:53:51 -0700594source "cmd/Kconfig"
595
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100596source "disk/Kconfig"
597
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900598source "dts/Kconfig"
599
Simon Glass0649cd02017-08-03 12:21:49 -0600600source "env/Kconfig"
601
Masahiro Yamadaed363232014-09-16 16:32:58 +0900602source "net/Kconfig"
603
604source "drivers/Kconfig"
605
606source "fs/Kconfig"
607
608source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700609
610source "test/Kconfig"
Simon Glass1fa057b2020-09-10 20:21:27 -0600611
612source "tools/Kconfig"