blob: 7b360ef3d32867294643e4e17776bddeb98d631b [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"
Michal Simek53948672023-04-18 14:51:55 +0200178 depends on ARM64
Michal Simek44cd7612023-04-06 10:04:15 +0200179 select SSCANF
Peng Fan75189732020-08-06 12:42:45 +0300180 help
181 Enabling this option will make U-Boot be run as a bootloader
182 for XEN [1] Virtual Machine.
183
184 Xen is a virtual machine monitor (VMM) or a type-1 hypervisor with support
185 for para-virtualization. Xen can organize the safe execution of several
186 virtual machines on the same physical system with performance close to
187 native. It is used as the basis for a number of different commercial and
188 open source applications, such as: server virtualization, Infrastructure
189 as a Service (IaaS), desktop virtualization, security applications,
190 embedded and hardware appliances.
191 Xen has a special VM called Domain-0 that runs the Dom0 kernel and allows
192 Xen to use the device drivers for the Domain-0 kernel by default.
193
194 [1] - https://xenproject.org/
195
Adam Fordd021e942018-02-06 07:58:59 -0600196config ENV_VARS_UBOOT_CONFIG
197 bool "Add arch, board, vendor and soc variables to default environment"
198 help
199 Define this in order to add variables describing the
200 U-Boot build configuration to the default environment.
201 These will be named arch, cpu, board, vendor, and soc.
202 Enabling this option will cause the following to be defined:
203 - CONFIG_SYS_ARCH
204 - CONFIG_SYS_CPU
205 - CONFIG_SYS_BOARD
206 - CONFIG_SYS_VENDOR
207 - CONFIG_SYS_SOC
208
Ramon Fried999a7722018-08-14 01:00:04 +0300209config NR_DRAM_BANKS
210 int "Number of DRAM banks"
Amit Singh Tomard5c819b2020-04-19 19:28:34 +0530211 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried999a7722018-08-14 01:00:04 +0300212 default 4
213 help
214 This defines the number of DRAM banks.
215
Derald D. Woods405fc832018-01-22 17:17:10 -0600216config SYS_BOOT_GET_CMDLINE
217 bool "Enable kernel command line setup"
218 help
219 Enables allocating and saving kernel cmdline in space between
220 "bootm_low" and "bootm_low" + BOOTMAPSZ.
221
Tom Rini68894122022-05-12 10:02:06 -0400222config SYS_BARGSIZE
223 int "Size of kernel command line buffer in bytes"
224 depends on SYS_BOOT_GET_CMDLINE
225 default 512
226 help
227 Buffer size for Boot Arguments which are passed to the application
228 (usually a Linux kernel) when it is booted
229
Derald D. Woods405fc832018-01-22 17:17:10 -0600230config SYS_BOOT_GET_KBD
231 bool "Enable kernel board information setup"
232 help
233 Enables allocating and saving a kernel copy of the bd_info in
234 space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
235
Tom Rinieaf6ea62022-05-25 12:16:03 -0400236config HAS_CUSTOM_SYS_INIT_SP_ADDR
237 bool "Use a custom location for the initial stack pointer address"
238 depends on ARC || (ARM && !INIT_SP_RELATIVE) || MIPS || PPC || RISCV
239 default y if TFABOOT
240 help
241 Typically, we use an initial stack pointer address that is calculated
Tom Rini65cc0e22022-11-16 13:10:41 -0500242 by taking the statically defined CFG_SYS_INIT_RAM_ADDR, adding the
243 statically defined CFG_SYS_INIT_RAM_SIZE and then subtracting the
Tom Rinieaf6ea62022-05-25 12:16:03 -0400244 build-time constant of GENERATED_GBL_DATA_SIZE. On MIPS a different
245 but statica calculation is performed. However, some platforms will
246 take a different approach. Say Y here to define the address statically
247 instead.
248
249config CUSTOM_SYS_INIT_SP_ADDR
250 hex "Static location for the initial stack pointer"
251 depends on HAS_CUSTOM_SYS_INIT_SP_ADDR
Simon Glass98463902022-10-20 18:22:39 -0600252 default TEXT_BASE if TFABOOT
Tom Rinieaf6ea62022-05-25 12:16:03 -0400253
Simon Glassb724bd72015-02-11 16:32:59 -0700254config SYS_MALLOC_F
255 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +0900256 default y if DM
Simon Glass15a5c722018-12-03 04:37:17 -0700257
Simon Glassb724bd72015-02-11 16:32:59 -0700258 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
264config SYS_MALLOC_F_LEN
265 hex "Size of malloc() pool before relocation"
266 depends on SYS_MALLOC_F
Tom Rinie0568922022-04-07 12:33:23 -0400267 default 0x400 if M68K || PPC || ROCKCHIP_PX30 || ROCKCHIP_RK3036 || \
268 ROCKCHIP_RK3308 || ROCKCHIP_RV1108
269 default 0x600 if ARCH_ZYNQMP_R5 || ARCH_ZYNQMP
270 default 0x800 if ARCH_ZYNQ || ROCKCHIP_RK3128 || ROCKCHIP_RK3188 || \
271 ROCKCHIP_RK322X || X86
Tom Rini4448d0c2022-04-07 12:33:24 -0400272 default 0x1000 if ARCH_MESON || ARCH_BMIPS || ARCH_MTMIPS
Tom Rinie0568922022-04-07 12:33:23 -0400273 default 0x1800 if ARCH_TEGRA
274 default 0x4000 if SANDBOX || RISCV || ARCH_APPLE || ROCKCHIP_RK3368 || \
275 ROCKCHIP_RK3399
276 default 0x8000 if RCAR_GEN3
Peng Fan19ed25b2022-09-15 09:38:18 +0800277 default 0x10000 if ARCH_IMX8 || ARCH_IMX8M
Tom Rinie0568922022-04-07 12:33:23 -0400278 default 0x2000
Simon Glassb724bd72015-02-11 16:32:59 -0700279 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400280 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700281 we can provide a small malloc() pool if needed. Driver model in
282 particular needs this to operate, so that it can allocate the
283 initial serial device and any others that are needed.
284
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530285config SYS_MALLOC_LEN
286 hex "Define memory for Dynamic allocation"
Tom Rini46d940c2022-04-14 11:34:47 -0400287 default 0x4000000 if SANDBOX
Tom Rini7cfbba32021-08-28 21:34:49 -0400288 default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
Tom Rini7cfbba32021-08-28 21:34:49 -0400289 default 0x200000 if ARCH_BMIPS || X86
Andre Przywara1bf98bd2022-07-03 00:47:20 +0100290 default 0x4020000 if SUNXI_MINIMUM_DRAM_MB >= 256
291 default 0x220000 if SUNXI_MINIMUM_DRAM_MB >= 64
292 default 0x120000 if SUNXI_MINIMUM_DRAM_MB >= 32
Tom Rini7cfbba32021-08-28 21:34:49 -0400293 default 0x400000
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530294 help
295 This defines memory to be allocated for Dynamic allocation
296 TODO: Use for other architectures
297
Andy Yanf1896c42017-07-24 17:43:34 +0800298config SPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700299 hex "Size of malloc() pool in SPL"
Adam Ford05705562019-08-13 14:32:30 -0500300 depends on SYS_MALLOC_F && SPL
Heinrich Schuchardt3b7b7382023-08-01 15:33:41 +0200301 default 0x0 if !SPL_FRAMEWORK
Marek Vasut56023302018-10-03 12:44:13 +0200302 default 0x2800 if RCAR_GEN3
Peng Fan19ed25b2022-09-15 09:38:18 +0800303 default 0x2000 if IMX8MQ
Michal Simek14aa2102018-07-24 14:47:43 +0200304 default SYS_MALLOC_F_LEN
305 help
Simon Glass14261742021-01-21 13:57:06 -0700306 In SPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200307 we can provide a small malloc() pool if needed. Driver model in
308 particular needs this to operate, so that it can allocate the
309 initial serial device and any others that are needed.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200310
Tom Rini65cc0e22022-11-16 13:10:41 -0500311 It is possible to enable CFG_SYS_SPL_MALLOC_START to start a new
Simon Glass14261742021-01-21 13:57:06 -0700312 malloc() region in SDRAM once it is inited.
313
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200314config TPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700315 hex "Size of malloc() pool in TPL"
Adam Ford05705562019-08-13 14:32:30 -0500316 depends on SYS_MALLOC_F && TPL
Simon Glass14261742021-01-21 13:57:06 -0700317 default SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200318 help
Simon Glass14261742021-01-21 13:57:06 -0700319 In TPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200320 we can provide a small malloc() pool if needed. Driver model in
321 particular needs this to operate, so that it can allocate the
322 initial serial device and any others that are needed.
Andy Yanf1896c42017-07-24 17:43:34 +0800323
Sean Andersonfba08822022-03-23 14:04:48 -0400324config VALGRIND
325 bool "Inform valgrind about memory allocations"
Sean Anderson1e5514f2022-05-27 10:03:00 -0400326 depends on !RISCV
Sean Andersonfba08822022-03-23 14:04:48 -0400327 help
328 Valgrind is an instrumentation framework for building dynamic analysis
329 tools. In particular, it may be used to detect memory management bugs
330 in U-Boot. It relies on knowing when heap blocks are allocated in
331 order to give accurate results. This happens automatically for
332 standard allocator functions provided by the host OS. However, this
333 doesn't automatically happen for U-Boot's malloc implementation.
334
335 Enable this option to annotate U-Boot's malloc implementation so that
336 it can be handled accurately by Valgrind. If you aren't planning on
337 using valgrind to debug U-Boot, say 'n'.
338
Simon Glass747093d2022-04-30 00:56:53 -0600339config VPL_SYS_MALLOC_F_LEN
340 hex "Size of malloc() pool in VPL before relocation"
341 depends on SYS_MALLOC_F && VPL
342 default SYS_MALLOC_F_LEN
343 help
344 Before relocation, memory is very limited on many platforms. Still,
345 we can provide a small malloc() pool if needed. Driver model in
346 particular needs this to operate, so that it can allocate the
347 initial serial device and any others that are needed.
348
Tom Rini1bf09792014-11-14 09:34:29 +0100349menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100350 bool "Configure standard U-Boot features (expert users)"
351 default y
352 help
353 This option allows certain base U-Boot options and settings
354 to be disabled or tweaked. This is for specialized
355 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400356 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100357
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100358if EXPERT
359 config SYS_MALLOC_CLEAR_ON_INIT
360 bool "Init with zeros the memory reserved for malloc (slow)"
361 default y
362 help
363 This setting is enabled by default. The reserved malloc
364 memory is initialized with zeros, so first malloc calls
365 will return the pointer to the zeroed memory. But this
366 slows the boot time.
367
368 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
369 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
370 Then the boot time can be significantly reduced.
371 Warning:
372 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400373 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600374
Shengyu Qudd1eb1a2023-08-25 00:25:18 +0800375config SPL_SYS_MALLOC_CLEAR_ON_INIT
376 bool "Init with zeros the memory reserved for malloc (slow) in SPL"
377 depends on SPL
378 default SYS_MALLOC_CLEAR_ON_INIT
379 help
380 Same as SYS_MALLOC_CLEAR_ON_INIT, but for SPL. It's possible to
381 Enable it without SYS_MALLOC_CLEAR_ON_INIT. It's useful for boards
382 that must have particular memory regions zero'ed before first use.
383 If SYS_SPL_MALLOC_START is configured to be in such region, this
384 option should be enabled.
385
Marek Bykowski9297e362020-04-29 18:23:07 +0200386config SYS_MALLOC_DEFAULT_TO_INIT
387 bool "Default malloc to init while reserving the memory for it"
Marek Bykowski9297e362020-04-29 18:23:07 +0200388 help
389 It may happen that one needs to move the dynamic allocation
390 from one to another memory range, eg. when moving the malloc
391 from the limited static to a potentially large dynamic (DDR)
392 memory.
393
394 If so then on top of setting the updated memory aside one
395 needs to bring the malloc init.
396
397 If such a scenario is sought choose yes.
398
Simon Glass022885c2016-06-30 10:52:20 -0600399config TOOLS_DEBUG
400 bool "Enable debug information for tools"
401 help
402 Enable generation of debug information for tools such as mkimage.
403 This can be used for debugging purposes. With debug information
404 it is possible to set breakpoints on particular lines, single-step
405 debug through the source code, etc.
406
Robert P. J. Day266aa862017-01-02 16:32:13 -0500407endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900408
409config PHYS_64BIT
410 bool "64bit physical address support"
Johan Jonker53c50932023-03-13 01:33:23 +0100411 select FDT_64BIT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900412 help
413 Say Y here to support 64bit physical memory address.
414 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300415 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900416
Johan Jonker53c50932023-03-13 01:33:23 +0100417config FDT_64BIT
418 bool "64bit fdt address support"
419 help
420 Say Y here to support 64bit fdt addresses.
421 This can be used not only for 64bit SoCs, but also
422 for large address extensions on 32bit SoCs.
423
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600424config HAS_ROM
425 bool
426 select BINMAN
427 help
428 Enables building of a u-boot.rom target. This collects U-Boot and
429 any necessary binary blobs.
430
Stefan Roese9ea6f712019-04-03 15:24:50 +0200431config SPL_IMAGE
432 string "SPL image used in the combined SPL+U-Boot image"
433 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
434 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500435 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200436 help
437 Select the SPL build target that shall be generated by the SPL
438 build process (default spl/u-boot-spl.bin). This image will be
439 used to generate a combined image with SPL and main U-Boot
440 proper as one single image.
441
Alper Nebi Yasaka8c281d2022-01-29 18:25:30 +0300442config REMAKE_ELF
443 bool "Recreate an ELF image from raw U-Boot binary"
444 help
445 Enable this to recreate an ELF image (u-boot.elf) from the raw
446 U-Boot binary (u-boot.bin), which may already have been statically
447 relocated and may already have a device-tree appended to it.
448
Jagan Tekidc146ca2019-01-18 12:52:49 +0530449config BUILD_TARGET
450 string "Build target special images"
Hai Pham5a3b0742023-02-28 22:22:03 +0100451 default "u-boot-elf.srec" if RCAR_64
Marek Vasut66e49f02023-02-28 07:22:21 +0100452 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
453 default "u-boot-with-spl.bin" if MPC85xx && !E500MC && !E5500 && !E6500 && SPL
454 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
455 default "u-boot-with-spl.kwb" if ARMADA_32BIT && SPL
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
Simon Glassa32dd072020-07-19 13:56:12 -0600458 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Samuel Holland25bc7bf2023-01-22 11:23:51 -0600459 RISCV || ARCH_ZYNQMP)
Pali RohĂĄrf0b1a1e2022-12-29 02:39:19 +0100460 default "u-boot.kwb" if (ARCH_KIRKWOOD || ARMADA_32BIT) && !SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530461 help
462 Some SoCs need special image types (e.g. U-Boot binary
463 with a special header) as build targets. By defining
464 CONFIG_BUILD_TARGET in the SoC / board header, this
465 special image will be automatically built upon calling
466 make / buildman.
467
Tom Rini95b64172022-03-30 18:07:11 -0400468config HAS_BOARD_SIZE_LIMIT
469 bool "Define a maximum size for the U-Boot image"
Hai Pham5a3b0742023-02-28 22:22:03 +0100470 default y if RCAR_64
Tom Rini95b64172022-03-30 18:07:11 -0400471 help
472 In some cases, we need to enforce a hard limit on how big the U-Boot
473 image itself can be.
474
475config BOARD_SIZE_LIMIT
476 int "Maximum size of the U-Boot image in bytes"
Hai Pham5a3b0742023-02-28 22:22:03 +0100477 default 1048576 if RCAR_64
Tom Rini95b64172022-03-30 18:07:11 -0400478 depends on HAS_BOARD_SIZE_LIMIT
479 help
480 Maximum size of the U-Boot image. When defined, the build system
481 checks that the actual size does not exceed it. This does not
482 include SPL nor TPL, on platforms that use that functionality, they
483 have a separate option to restict size.
484
Tom Rinid760a5e2019-06-02 08:57:32 -0400485config SYS_CUSTOM_LDSCRIPT
486 bool "Use a custom location for the U-Boot linker script"
487 help
488 Normally when linking U-Boot we will look in the board directory,
489 the CPU directory and finally the "cpu" directory of the architecture
490 for the ile "u-boot.lds" and use that as our linker. However, in
491 some cases we need to provide a different linker script. To do so,
492 enable this option and then provide the location under
493 CONFIG_SYS_LDSCRIPT.
494
495config SYS_LDSCRIPT
496 depends on SYS_CUSTOM_LDSCRIPT
497 string "Custom ldscript location"
498 help
499 Path within the source tree to the linker script to use for the
500 main U-Boot binary.
501
Tom Rini49c8ef02021-08-23 10:25:31 -0400502config SYS_LOAD_ADDR
503 hex "Address in memory to use by default"
504 default 0x01000000 if ARCH_SOCFPGA
505 default 0x02000000 if PPC || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500506 default 0x81000000 if MACH_SUNIV
Tom Rini49c8ef02021-08-23 10:25:31 -0400507 default 0x22000000 if MACH_SUN9I
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500508 default 0x42000000 if ARCH_SUNXI
Tom Rini49c8ef02021-08-23 10:25:31 -0400509 default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
510 default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
511 default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
512 default 0x80800000 if ARCH_MX7
513 default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
514 help
515 Address in memory to use as the default safe load address.
516
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200517config ERR_PTR_OFFSET
518 hex
519 default 0x0
520 help
521 Some U-Boot pointers have redundant information, so we can use a
522 scheme where we can return either an error code or a pointer with the
523 same return value. The default implementation just casts the pointer
524 to a number, however, this may fail on platforms where the end of the
525 address range is used for valid pointers (e.g. 0xffffff00 is a valid
526 heap pointer in socfpga SPL).
527 For such platforms, this value provides an upper range of those error
528 pointer values - up to 'MAX_ERRNO' bytes below this value must be
529 unused/invalid addresses.
530
Michal Simeke14ba8a2020-03-30 13:58:59 +0200531config PLATFORM_ELFENTRY
532 string
533 default "__start" if MIPS
534 default "_start"
535
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200536config STACK_SIZE
537 hex "Define max stack size that can be used by U-Boot"
Michal Simekf6aebdf2022-09-19 14:21:02 +0200538 default 0x4000000 if ARCH_VERSAL_NET || ARCH_VERSAL || ARCH_ZYNQMP
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200539 default 0x200000 if MICROBLAZE
540 default 0x1000000
541 help
542 Define Max stack size that can be used by U-Boot. This value is used
543 by the UEFI sub-system. On some boards initrd_high is calculated as
544 base stack pointer minus this stack size.
545
Tom Rini24c904f2022-04-06 10:33:32 -0400546config SYS_MEM_TOP_HIDE
547 hex "Exclude some memory from U-Boot / OS information"
548 default 0x0
549 help
550 If set, this specified memory area will get subtracted from the top
551 (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
552 gd->ram_size the OS / next stage should gets passed the now
553 "corrected" memory size and won't touch it either.
554 WARNING: Please make sure that this value is a multiple of the OS
555 page size.
556
Ovidiu Panait7be19312020-07-24 14:12:09 +0300557config SYS_HAS_SRAM
558 bool
559 default y if TARGET_PIC32MZDASK
560 default y if TARGET_DEVKIT8000
561 default y if TARGET_TRICORDER
Ovidiu Panait7be19312020-07-24 14:12:09 +0300562 help
563 Enable this to allow support for the on board SRAM.
564 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
565 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
566
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300567config SYS_SRAM_BASE
568 hex
569 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait9a17bfb2020-07-24 14:12:12 +0300570 default 0x40200000 if TARGET_DEVKIT8000
571 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300572 default 0x0
573
Ovidiu Panait9f63f022020-07-24 14:12:11 +0300574config SYS_SRAM_SIZE
575 hex
576 default 0x00080000 if TARGET_PIC32MZDASK
577 default 0x10000 if TARGET_DEVKIT8000
578 default 0x10000 if TARGET_TRICORDER
579 default 0x0
580
Tom Rini08574ed2022-10-28 20:27:07 -0400581config SYS_MONITOR_LEN
582 int "Maximum size in bytes reserved for U-Boot in memory"
583 default 1048576 if X86
Andre Przywarab072aef2022-11-19 16:10:59 +0000584 default 786432 if ARCH_SUNXI
Tom Rini08574ed2022-10-28 20:27:07 -0400585 default 0
586 help
587 Size of memory reserved for monitor code, used to determine
588 _at_compile_time_ (!) if the environment is embedded within the
589 U-Boot image, or in a separate flash sector, among other uses where
590 we need to set a maximum size of the U-Boot binary itself that will
591 be loaded.
592
Ashok Reddy Soma480245c2022-01-17 10:16:50 +0100593config MP
594 bool "Support for multiprocessor"
595 help
596 This provides an option to bringup different processors
597 in multiprocessor cases.
598
Simon Glass064a57d2023-09-14 10:55:54 -0600599config HAVE_TEXT_BASE
600 bool
601 depends on !NIOS2 && !XTENSA
602 depends on !EFI_APP
603 default y
604
605config TEXT_BASE
606 depends on HAVE_TEXT_BASE
607 default 0x0 if POSITION_INDEPENDENT
608 default 0x80800000 if ARCH_OMAP2PLUS || ARCH_K3
609 default 0x81700000 if MACH_SUNIV
610 default 0x2a000000 if MACH_SUN9I
611 default 0x4a000000 if SUNXI_MINIMUM_DRAM_MB >= 256
612 default 0x42e00000 if SUNXI_MINIMUM_DRAM_MB >= 64
613 hex "Text Base"
614 help
Jesse Taube6ab77bb2023-08-24 21:59:48 -0400615 The address in memory that U-Boot will be copied and executed from
616 initially.
617
618config HAVE_SYS_UBOOT_START
619 bool "Use custom U-Boot Start"
620 depends on HAVE_TEXT_BASE
621 help
622 By default, the address in memory that U-Boot will be copied from
623 (TEXT_BASE) and the entry point are the same. Select this to start the
624 execution of U-Boot from a different address.
625 This may be required if a header or vector table needs to be copied
626 but not executed.
627
628config SYS_UBOOT_START
629 hex
630 depends on HAVE_TEXT_BASE
631 default TEXT_BASE
632 prompt "U-Boot entry" if HAVE_SYS_UBOOT_START
633 help
634 If TEXT_BASE differs from the start of execution, this sets the
635 address in memory that U-Boot will start execution from initially.
Simon Glass064a57d2023-09-14 10:55:54 -0600636
637config HAVE_SYS_MONITOR_BASE
638 bool
639 depends on ARC || MIPS || M68K || NIOS2 || PPC || XTENSA || X86 \
640 || ENV_IS_IN_FLASH || MTD_NOR_FLASH
641 depends on !EFI_APP
642 default y
643
644config SYS_MONITOR_BASE
645 depends on HAVE_SYS_MONITOR_BASE
646 hex "Physical start address of boot monitor code"
647 default TEXT_BASE
648 help
649 The physical start address of boot monitor code (which is the same as
650 CONFIG_TEXT_BASE when linking) and the same as CFG_SYS_FLASH_BASE
651 when booting from flash.
652
653config SPL_SYS_MONITOR_BASE
654 depends on MPC85xx && SPL && HAVE_SYS_MONITOR_BASE
655 hex "Physical start address of SPL monitor code"
656 default SPL_TEXT_BASE
657
658config TPL_SYS_MONITOR_BASE
659 depends on MPC85xx && TPL && HAVE_SYS_MONITOR_BASE
660 hex "Physical start address of TPL monitor code"
661
662config DYNAMIC_SYS_CLK_FREQ
663 bool "Determine CPU clock frequency at run-time"
664 help
665 Implement a get_board_sys_clk function that will determine the CPU
666 clock frequency at run time, rather than define it statically.
667
668config SYS_CLK_FREQ
669 depends on !DYNAMIC_SYS_CLK_FREQ
670 int "CPU clock frequency"
671 default 125000000 if ARCH_LS1012A
672 default 100000000 if ARCH_P2020 || ARCH_T1024 || ARCH_T1042 || \
673 ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3
674 default 66666666 if ARCH_P1010 || ARCH_P1020 || ARCH_T4240
675 default 66660000 if ARCH_T2080
676 default 33333333 if RCAR_GEN3
677 default 24000000 if ARCH_EXYNOS
678 default 20000000 if RCAR_GEN2
679 default 0
680 help
681 A static value for the CPU frequency. Note that if not required
682 for a given SoC, this can be left at 0.
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900683
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100684source "api/Kconfig"
685
Simon Glassd761eea2023-09-14 10:55:40 -0600686endmenu # General setup
687
Simon Glass19a91f22021-10-14 12:47:54 -0600688source "boot/Kconfig"
689
Masahiro Yamadaed363232014-09-16 16:32:58 +0900690source "common/Kconfig"
691
Simon Glass72a8cf82016-01-17 20:53:51 -0700692source "cmd/Kconfig"
693
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100694source "disk/Kconfig"
695
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900696source "dts/Kconfig"
697
Simon Glass0649cd02017-08-03 12:21:49 -0600698source "env/Kconfig"
699
Masahiro Yamadaed363232014-09-16 16:32:58 +0900700source "net/Kconfig"
701
702source "drivers/Kconfig"
703
704source "fs/Kconfig"
705
706source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700707
708source "test/Kconfig"
Simon Glass1fa057b2020-09-10 20:21:27 -0600709
710source "tools/Kconfig"