blob: 98175a8f3362b3b8d5e460d23a1bf208b06e59c7 [file] [log] [blame]
Masahiro Yamada804bc5e2014-07-30 14:08:15 +09001#
2# For a description of the syntax of this configuration file,
Robert P. J. Day2f845be2016-04-16 05:53:07 -04003# see the file Documentation/kbuild/kconfig-language.txt in the
4# Linux kernel source tree.
Masahiro Yamada804bc5e2014-07-30 14:08:15 +09005#
Tom Rini40f11702020-03-11 18:11:17 -04006mainmenu "U-Boot $(UBOOTVERSION) Configuration"
Masahiro Yamada804bc5e2014-07-30 14:08:15 +09007
Tom Rini99985942020-05-18 14:48:00 -04008comment "Compiler: $(CC_VERSION_TEXT)"
9
Tom Rini8f1be322020-05-14 08:30:01 -040010source "scripts/Kconfig.include"
11
Simon Glass157c3952015-02-24 22:26:19 +090012# Allow defaults in arch-specific code to override any given here
13source "arch/Kconfig"
14
Masahiro Yamada804bc5e2014-07-30 14:08:15 +090015menu "General setup"
16
Heinrich Schuchardt556f86d2017-10-19 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 Rinie9518cf2019-05-29 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 Yamada6ea06e62014-08-22 19:42:27 +090030config LOCALVERSION
31 string "Local version - append to U-Boot release"
Masahiro Yamada6ea06e62014-08-22 19:42:27 +090032 help
33 Append an extra string to the end of your U-Boot version.
Robert P. J. Day2f845be2016-04-16 05:53:07 -040034 This will show up in your boot log, for example.
Masahiro Yamada6ea06e62014-08-22 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 Yamada6ea06e62014-08-22 19:42:27 +090042 default y
43 help
44 This will try to automatically determine if the current tree is a
Robert P. J. Day2f845be2016-04-16 05:53:07 -040045 release tree by looking for Git tags that belong to the current
Masahiro Yamada6ea06e62014-08-22 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. Day2f845be2016-04-16 05:53:07 -040049 if a Git-based tree is found. The string generated by this will be
Masahiro Yamada6ea06e62014-08-22 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 Rini50800632021-06-17 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 Anderson9964cae2022-02-22 12:19:24 -050075choice
76 prompt "Optimization level"
77 default CC_OPTIMIZE_FOR_SIZE
78
Masahiro Yamada8240a4b2014-08-22 19:42:29 +090079config CC_OPTIMIZE_FOR_SIZE
80 bool "Optimize for size"
Masahiro Yamada8240a4b2014-08-22 19:42:29 +090081 help
Sean Anderson9964cae2022-02-22 12:19:24 -050082 Enabling this option will pass "-Os" to gcc, resulting in a smaller
83 U-Boot image.
Masahiro Yamada8240a4b2014-08-22 19:42:29 +090084
85 This option is enabled by default for U-Boot.
86
Sean Anderson9964cae2022-02-22 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 Andersonc73952c2022-02-22 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 Anderson9964cae2022-02-22 12:19:24 -050099endchoice
100
Tom Rini5cbb29e2020-05-14 08:30:07 -0400101config OPTIMIZE_INLINING
Tom Riniea55ba02020-05-14 08:30:08 -0400102 bool "Allow compiler to uninline functions marked 'inline' in full U-Boot"
Tom Riniea55ba02020-05-14 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 Riniea55ba02020-05-14 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 BehĂșnd72a3b72021-05-20 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 BehĂșnd72a3b72021-05-20 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 Riniea55ba02020-05-14 08:30:08 -0400141config TPL_OPTIMIZE_INLINING
142 bool "Allow compiler to uninline functions marked 'inline' in TPL"
143 depends on TPL
Tom Rini5cbb29e2020-05-14 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 Gmeiner0e7c0712018-04-09 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 Scullf9a2c5e2022-05-30 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 Sculle184c5b2022-05-30 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 Rini7c34ae42020-05-14 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 Fanf08fa492020-08-06 12:42:45 +0300176config XEN
177 bool "Select U-Boot be run as a bootloader for XEN Virtual Machine"
Michal Simek300adaa2023-04-18 14:51:55 +0200178 depends on ARM64
Michal Simek90dccc22023-04-06 10:04:15 +0200179 select SSCANF
Peng Fanf08fa492020-08-06 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 Ford58dbf862018-02-06 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 Fried99826612018-08-14 01:00:04 +0300209config NR_DRAM_BANKS
210 int "Number of DRAM banks"
Amit Singh Tomar82704fa2020-04-19 19:28:34 +0530211 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried99826612018-08-14 01:00:04 +0300212 default 4
213 help
214 This defines the number of DRAM banks.
215
Derald D. Woodseb730bd2018-01-22 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 Rinic253f122022-05-12 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. Woodseb730bd2018-01-22 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 Rini4ddbade2022-05-25 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
Paul Kocialkowski50056582024-07-28 22:24:51 +0200239 default y if OMAP34XX
Tom Rini4ddbade2022-05-25 12:16:03 -0400240 default y if TFABOOT
241 help
242 Typically, we use an initial stack pointer address that is calculated
Tom Rini6a5dccc2022-11-16 13:10:41 -0500243 by taking the statically defined CFG_SYS_INIT_RAM_ADDR, adding the
244 statically defined CFG_SYS_INIT_RAM_SIZE and then subtracting the
Tom Rini4ddbade2022-05-25 12:16:03 -0400245 build-time constant of GENERATED_GBL_DATA_SIZE. On MIPS a different
246 but statica calculation is performed. However, some platforms will
247 take a different approach. Say Y here to define the address statically
248 instead.
249
250config CUSTOM_SYS_INIT_SP_ADDR
251 hex "Static location for the initial stack pointer"
252 depends on HAS_CUSTOM_SYS_INIT_SP_ADDR
Paul Kocialkowski50056582024-07-28 22:24:51 +0200253 default 0x4020ff00 if OMAP34XX
Simon Glass72cc5382022-10-20 18:22:39 -0600254 default TEXT_BASE if TFABOOT
Tom Rini4ddbade2022-05-25 12:16:03 -0400255
Simon Glass838723b2015-02-11 16:32:59 -0700256config SYS_MALLOC_F
257 bool "Enable malloc() pool before relocation"
Masahiro Yamadac6988242015-03-19 19:42:55 +0900258 default y if DM
Simon Glassb24fdd42018-12-03 04:37:17 -0700259
Simon Glass838723b2015-02-11 16:32:59 -0700260 help
Robert P. J. Day2f845be2016-04-16 05:53:07 -0400261 Before relocation, memory is very limited on many platforms. Still,
Simon Glass838723b2015-02-11 16:32:59 -0700262 we can provide a small malloc() pool if needed. Driver model in
263 particular needs this to operate, so that it can allocate the
264 initial serial device and any others that are needed.
265
266config SYS_MALLOC_F_LEN
267 hex "Size of malloc() pool before relocation"
268 depends on SYS_MALLOC_F
Tom Rini324cf142022-04-07 12:33:23 -0400269 default 0x400 if M68K || PPC || ROCKCHIP_PX30 || ROCKCHIP_RK3036 || \
Jonas Karlmane60b92e2024-03-02 19:16:12 +0000270 ROCKCHIP_RV1108
Tom Rini324cf142022-04-07 12:33:23 -0400271 default 0x600 if ARCH_ZYNQMP_R5 || ARCH_ZYNQMP
272 default 0x800 if ARCH_ZYNQ || ROCKCHIP_RK3128 || ROCKCHIP_RK3188 || \
273 ROCKCHIP_RK322X || X86
Tom Riniae683732022-04-07 12:33:24 -0400274 default 0x1000 if ARCH_MESON || ARCH_BMIPS || ARCH_MTMIPS
Tom Rini324cf142022-04-07 12:33:23 -0400275 default 0x1800 if ARCH_TEGRA
276 default 0x4000 if SANDBOX || RISCV || ARCH_APPLE || ROCKCHIP_RK3368 || \
277 ROCKCHIP_RK3399
278 default 0x8000 if RCAR_GEN3
Peng Fan7e43a2e2022-09-15 09:38:18 +0800279 default 0x10000 if ARCH_IMX8 || ARCH_IMX8M
Tom Rini324cf142022-04-07 12:33:23 -0400280 default 0x2000
Simon Glass838723b2015-02-11 16:32:59 -0700281 help
Simon Glassc1aae9b2023-09-26 08:14:29 -0600282 Size of the malloc() pool for use before relocation. If
283 this is defined, then a very simple malloc() implementation
284 will become available before relocation. The address is just
285 below the global data, and the stack is moved down to make
286 space.
287
288 This feature allocates regions with increasing addresses
289 within the region. calloc() is supported, but realloc()
290 is not available. free() is supported but does nothing.
291 The memory will be freed (or in fact just forgotten) when
292 U-Boot relocates itself.
Simon Glass838723b2015-02-11 16:32:59 -0700293
Siva Durga Prasad Paladugu9adb5262018-07-20 15:11:38 +0530294config SYS_MALLOC_LEN
295 hex "Define memory for Dynamic allocation"
Tom Rini4c538442022-04-14 11:34:47 -0400296 default 0x4000000 if SANDBOX
Tom Rinie065fb12021-08-28 21:34:49 -0400297 default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
Tom Rinie065fb12021-08-28 21:34:49 -0400298 default 0x200000 if ARCH_BMIPS || X86
Andre Przywaraa2860fb2022-07-03 00:47:20 +0100299 default 0x4020000 if SUNXI_MINIMUM_DRAM_MB >= 256
300 default 0x220000 if SUNXI_MINIMUM_DRAM_MB >= 64
301 default 0x120000 if SUNXI_MINIMUM_DRAM_MB >= 32
Tom Rinie065fb12021-08-28 21:34:49 -0400302 default 0x400000
Siva Durga Prasad Paladugu9adb5262018-07-20 15:11:38 +0530303 help
304 This defines memory to be allocated for Dynamic allocation
305 TODO: Use for other architectures
306
Simon Glass2f7409a2023-09-26 08:14:24 -0600307config SPL_SYS_MALLOC_F
308 bool "Enable malloc() pool in SPL"
309 depends on SPL_FRAMEWORK && SYS_MALLOC_F && SPL
310 default y
311 help
312 In SPL memory is very limited on many platforms. Still,
313 we can provide a small malloc() pool if needed. Driver model in
314 particular needs this to operate, so that it can allocate the
315 initial serial device and any others that are needed.
316
Andy Yan1fa20e4d2017-07-24 17:43:34 +0800317config SPL_SYS_MALLOC_F_LEN
Simon Glassbbfdaf32021-01-21 13:57:06 -0700318 hex "Size of malloc() pool in SPL"
Simon Glassadad2d02023-09-26 08:14:27 -0600319 depends on SPL_SYS_MALLOC_F
Marek Vasute39fa7d2018-10-03 12:44:13 +0200320 default 0x2800 if RCAR_GEN3
Peng Fan7e43a2e2022-09-15 09:38:18 +0800321 default 0x2000 if IMX8MQ
Michal Simek0601c1b2018-07-24 14:47:43 +0200322 default SYS_MALLOC_F_LEN
323 help
Simon Glass2f7409a2023-09-26 08:14:24 -0600324 Sets the size of the malloc() pool in SPL. This is used for
325 driver model and other features, which must allocate memory for
326 data structures.
Philipp Tomsich10139352017-07-28 11:06:03 +0200327
Simon Glass67e3fca2023-09-26 08:14:16 -0600328 It is possible to enable CFG_SPL_SYS_MALLOC_START to start a new
Simon Glassbbfdaf32021-01-21 13:57:06 -0700329 malloc() region in SDRAM once it is inited.
330
Simon Glass2f7409a2023-09-26 08:14:24 -0600331config TPL_SYS_MALLOC_F
John Keepingcd689722023-11-14 11:30:17 +0000332 bool "Enable malloc() pool in TPL"
Adam Ford43a1e2d2019-08-13 14:32:30 -0500333 depends on SYS_MALLOC_F && TPL
Simon Glass2f7409a2023-09-26 08:14:24 -0600334 default y if SPL_SYS_MALLOC_F
Michal Simek0601c1b2018-07-24 14:47:43 +0200335 help
Simon Glassbbfdaf32021-01-21 13:57:06 -0700336 In TPL memory is very limited on many platforms. Still,
Michal Simek0601c1b2018-07-24 14:47:43 +0200337 we can provide a small malloc() pool if needed. Driver model in
338 particular needs this to operate, so that it can allocate the
339 initial serial device and any others that are needed.
Andy Yan1fa20e4d2017-07-24 17:43:34 +0800340
Simon Glass2f7409a2023-09-26 08:14:24 -0600341config TPL_SYS_MALLOC_F_LEN
342 hex "Size of malloc() pool in TPL"
Simon Glassadad2d02023-09-26 08:14:27 -0600343 depends on TPL_SYS_MALLOC_F
Simon Glass2f7409a2023-09-26 08:14:24 -0600344 default SPL_SYS_MALLOC_F_LEN
345 help
346 Sets the size of the malloc() pool in TPL. This is used for
347 driver model and other features, which must allocate memory for
348 data structures.
349
Sean Anderson3b004842022-03-23 14:04:48 -0400350config VALGRIND
351 bool "Inform valgrind about memory allocations"
Sean Anderson39866b62022-05-27 10:03:00 -0400352 depends on !RISCV
Sean Anderson3b004842022-03-23 14:04:48 -0400353 help
354 Valgrind is an instrumentation framework for building dynamic analysis
355 tools. In particular, it may be used to detect memory management bugs
356 in U-Boot. It relies on knowing when heap blocks are allocated in
357 order to give accurate results. This happens automatically for
358 standard allocator functions provided by the host OS. However, this
359 doesn't automatically happen for U-Boot's malloc implementation.
360
361 Enable this option to annotate U-Boot's malloc implementation so that
362 it can be handled accurately by Valgrind. If you aren't planning on
363 using valgrind to debug U-Boot, say 'n'.
364
Simon Glass2f7409a2023-09-26 08:14:24 -0600365config VPL_SYS_MALLOC_F
366 bool "Enable malloc() pool in VPL"
Simon Glasse7ca7da2022-04-30 00:56:53 -0600367 depends on SYS_MALLOC_F && VPL
Simon Glass2f7409a2023-09-26 08:14:24 -0600368 default y if SPL_SYS_MALLOC_F
Simon Glasse7ca7da2022-04-30 00:56:53 -0600369 help
Simon Glass2f7409a2023-09-26 08:14:24 -0600370 In VPL memory is very limited on many platforms. Still,
Simon Glasse7ca7da2022-04-30 00:56:53 -0600371 we can provide a small malloc() pool if needed. Driver model in
372 particular needs this to operate, so that it can allocate the
373 initial serial device and any others that are needed.
374
Simon Glass2f7409a2023-09-26 08:14:24 -0600375config VPL_SYS_MALLOC_F_LEN
376 hex "Size of malloc() pool in VPL before relocation"
Simon Glassadad2d02023-09-26 08:14:27 -0600377 depends on VPL_SYS_MALLOC_F
378 default SPL_SYS_MALLOC_F_LEN
Simon Glass2f7409a2023-09-26 08:14:24 -0600379 help
380 Sets the size of the malloc() pool in VPL. This is used for
381 driver model and other features, which must allocate memory for
382 data structures.
383
Tom Rinia50d5b52014-11-14 09:34:29 +0100384menuconfig EXPERT
Przemyslaw Marczak88436782015-03-04 14:01:24 +0100385 bool "Configure standard U-Boot features (expert users)"
386 default y
387 help
388 This option allows certain base U-Boot options and settings
389 to be disabled or tweaked. This is for specialized
390 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day2f845be2016-04-16 05:53:07 -0400391 Use this only if you really know what you are doing.
Przemyslaw Marczak88436782015-03-04 14:01:24 +0100392
393if EXPERT
394 config SYS_MALLOC_CLEAR_ON_INIT
395 bool "Init with zeros the memory reserved for malloc (slow)"
396 default y
397 help
398 This setting is enabled by default. The reserved malloc
399 memory is initialized with zeros, so first malloc calls
400 will return the pointer to the zeroed memory. But this
401 slows the boot time.
Tom Rinia50d5b52014-11-14 09:34:29 +0100402
Przemyslaw Marczak88436782015-03-04 14:01:24 +0100403 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
404 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
405 Then the boot time can be significantly reduced.
406 Warning:
407 When disabling this, please check if malloc calls, maybe
Robert P. J. Day2f845be2016-04-16 05:53:07 -0400408 should be replaced by calloc - if one expects zeroed memory.
Simon Glass86a64492016-06-30 10:52:20 -0600409
Shengyu Qu9b676302023-08-25 00:25:18 +0800410config SPL_SYS_MALLOC_CLEAR_ON_INIT
411 bool "Init with zeros the memory reserved for malloc (slow) in SPL"
412 depends on SPL
413 default SYS_MALLOC_CLEAR_ON_INIT
414 help
415 Same as SYS_MALLOC_CLEAR_ON_INIT, but for SPL. It's possible to
416 Enable it without SYS_MALLOC_CLEAR_ON_INIT. It's useful for boards
417 that must have particular memory regions zero'ed before first use.
418 If SYS_SPL_MALLOC_START is configured to be in such region, this
419 option should be enabled.
420
Marek Bykowskib4032a72020-04-29 18:23:07 +0200421config SYS_MALLOC_DEFAULT_TO_INIT
422 bool "Default malloc to init while reserving the memory for it"
Marek Bykowskib4032a72020-04-29 18:23:07 +0200423 help
424 It may happen that one needs to move the dynamic allocation
425 from one to another memory range, eg. when moving the malloc
426 from the limited static to a potentially large dynamic (DDR)
427 memory.
428
429 If so then on top of setting the updated memory aside one
430 needs to bring the malloc init.
431
432 If such a scenario is sought choose yes.
433
Simon Glass86a64492016-06-30 10:52:20 -0600434config TOOLS_DEBUG
435 bool "Enable debug information for tools"
436 help
437 Enable generation of debug information for tools such as mkimage.
438 This can be used for debugging purposes. With debug information
439 it is possible to set breakpoints on particular lines, single-step
440 debug through the source code, etc.
441
Robert P. J. Daye4829f32017-01-02 16:32:13 -0500442endif # EXPERT
Masahiro Yamada653e9fe2016-07-25 19:56:03 +0900443
444config PHYS_64BIT
445 bool "64bit physical address support"
Johan Jonker02e3e062023-03-13 01:33:23 +0100446 select FDT_64BIT
Masahiro Yamada653e9fe2016-07-25 19:56:03 +0900447 help
448 Say Y here to support 64bit physical memory address.
449 This can be used not only for 64bit SoCs, but also for
Chris Packham2b52a242019-01-13 22:13:19 +1300450 large physical address extension on 32bit SoCs.
Masahiro Yamada653e9fe2016-07-25 19:56:03 +0900451
Johan Jonker02e3e062023-03-13 01:33:23 +0100452config FDT_64BIT
453 bool "64bit fdt address support"
454 help
455 Say Y here to support 64bit fdt addresses.
456 This can be used not only for 64bit SoCs, but also
457 for large address extensions on 32bit SoCs.
458
Simon Glassf69c0092020-07-19 13:55:52 -0600459config HAS_ROM
460 bool
461 select BINMAN
462 help
463 Enables building of a u-boot.rom target. This collects U-Boot and
464 any necessary binary blobs.
465
Stefan Roesee915cbc2019-04-03 15:24:50 +0200466config SPL_IMAGE
467 string "SPL image used in the combined SPL+U-Boot image"
468 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
469 default "spl/u-boot-spl.bin"
Adam Ford43a1e2d2019-08-13 14:32:30 -0500470 depends on SPL
Stefan Roesee915cbc2019-04-03 15:24:50 +0200471 help
472 Select the SPL build target that shall be generated by the SPL
473 build process (default spl/u-boot-spl.bin). This image will be
474 used to generate a combined image with SPL and main U-Boot
475 proper as one single image.
476
Alper Nebi Yasak2beb0f42022-01-29 18:25:30 +0300477config REMAKE_ELF
478 bool "Recreate an ELF image from raw U-Boot binary"
479 help
480 Enable this to recreate an ELF image (u-boot.elf) from the raw
481 U-Boot binary (u-boot.bin), which may already have been statically
482 relocated and may already have a device-tree appended to it.
483
Jagan Tekiaee9ed32019-01-18 12:52:49 +0530484config BUILD_TARGET
485 string "Build target special images"
Hai Pham9046b5f2023-02-28 22:22:03 +0100486 default "u-boot-elf.srec" if RCAR_64
Marek Vasut9a976c12023-02-28 07:22:21 +0100487 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
488 default "u-boot-with-spl.bin" if MPC85xx && !E500MC && !E5500 && !E6500 && SPL
489 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
490 default "u-boot-with-spl.kwb" if ARMADA_32BIT && SPL
Dalon Westergreen8fb280c2019-03-20 13:15:21 -0700491 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
492 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Simon Glass6a50cd12020-07-19 13:56:12 -0600493 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Samuel Holland3be2d9f2023-01-22 11:23:51 -0600494 RISCV || ARCH_ZYNQMP)
Pali RohĂĄra4a4f952022-12-29 02:39:19 +0100495 default "u-boot.kwb" if (ARCH_KIRKWOOD || ARMADA_32BIT) && !SPL
Jagan Tekiaee9ed32019-01-18 12:52:49 +0530496 help
497 Some SoCs need special image types (e.g. U-Boot binary
498 with a special header) as build targets. By defining
499 CONFIG_BUILD_TARGET in the SoC / board header, this
500 special image will be automatically built upon calling
501 make / buildman.
502
Tom Rini876df342022-03-30 18:07:11 -0400503config HAS_BOARD_SIZE_LIMIT
504 bool "Define a maximum size for the U-Boot image"
Marek Vasutb42de382024-02-11 18:34:29 +0100505 default y if RCAR_32 || RCAR_64
Tom Rini876df342022-03-30 18:07:11 -0400506 help
507 In some cases, we need to enforce a hard limit on how big the U-Boot
508 image itself can be.
509
510config BOARD_SIZE_LIMIT
511 int "Maximum size of the U-Boot image in bytes"
Marek Vasutb42de382024-02-11 18:34:29 +0100512 default 524288 if RCAR_32
Hai Pham9046b5f2023-02-28 22:22:03 +0100513 default 1048576 if RCAR_64
Tom Rini876df342022-03-30 18:07:11 -0400514 depends on HAS_BOARD_SIZE_LIMIT
515 help
516 Maximum size of the U-Boot image. When defined, the build system
517 checks that the actual size does not exceed it. This does not
518 include SPL nor TPL, on platforms that use that functionality, they
519 have a separate option to restict size.
520
Tom Rinie478f702019-06-02 08:57:32 -0400521config SYS_CUSTOM_LDSCRIPT
522 bool "Use a custom location for the U-Boot linker script"
523 help
524 Normally when linking U-Boot we will look in the board directory,
525 the CPU directory and finally the "cpu" directory of the architecture
526 for the ile "u-boot.lds" and use that as our linker. However, in
527 some cases we need to provide a different linker script. To do so,
528 enable this option and then provide the location under
529 CONFIG_SYS_LDSCRIPT.
530
531config SYS_LDSCRIPT
532 depends on SYS_CUSTOM_LDSCRIPT
533 string "Custom ldscript location"
534 help
535 Path within the source tree to the linker script to use for the
536 main U-Boot binary.
537
Tom Rini0997ee02021-08-23 10:25:31 -0400538config SYS_LOAD_ADDR
539 hex "Address in memory to use by default"
540 default 0x01000000 if ARCH_SOCFPGA
541 default 0x02000000 if PPC || X86
Icenowy Zheng711fab32022-01-29 10:23:09 -0500542 default 0x81000000 if MACH_SUNIV
Tom Rini0997ee02021-08-23 10:25:31 -0400543 default 0x22000000 if MACH_SUN9I
Icenowy Zheng711fab32022-01-29 10:23:09 -0500544 default 0x42000000 if ARCH_SUNXI
Tom Rini0997ee02021-08-23 10:25:31 -0400545 default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
546 default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
547 default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
548 default 0x80800000 if ARCH_MX7
549 default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
550 help
551 Address in memory to use as the default safe load address.
552
Simon Goldschmidt9c055112019-10-22 21:29:46 +0200553config ERR_PTR_OFFSET
554 hex
555 default 0x0
556 help
557 Some U-Boot pointers have redundant information, so we can use a
558 scheme where we can return either an error code or a pointer with the
559 same return value. The default implementation just casts the pointer
560 to a number, however, this may fail on platforms where the end of the
561 address range is used for valid pointers (e.g. 0xffffff00 is a valid
562 heap pointer in socfpga SPL).
563 For such platforms, this value provides an upper range of those error
564 pointer values - up to 'MAX_ERRNO' bytes below this value must be
565 unused/invalid addresses.
566
Michal Simek5d458a12020-03-30 13:58:59 +0200567config PLATFORM_ELFENTRY
568 string
569 default "__start" if MIPS
570 default "_start"
571
Heinrich Schuchardtc6dcbe12020-07-29 12:37:35 +0200572config STACK_SIZE
573 hex "Define max stack size that can be used by U-Boot"
Michal Simek2e53eb22022-09-19 14:21:02 +0200574 default 0x4000000 if ARCH_VERSAL_NET || ARCH_VERSAL || ARCH_ZYNQMP
Heinrich Schuchardtc6dcbe12020-07-29 12:37:35 +0200575 default 0x200000 if MICROBLAZE
576 default 0x1000000
577 help
578 Define Max stack size that can be used by U-Boot. This value is used
579 by the UEFI sub-system. On some boards initrd_high is calculated as
580 base stack pointer minus this stack size.
581
Tom Rini5c1e7272022-04-06 10:33:32 -0400582config SYS_MEM_TOP_HIDE
583 hex "Exclude some memory from U-Boot / OS information"
584 default 0x0
585 help
586 If set, this specified memory area will get subtracted from the top
587 (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
588 gd->ram_size the OS / next stage should gets passed the now
589 "corrected" memory size and won't touch it either.
590 WARNING: Please make sure that this value is a multiple of the OS
591 page size.
592
Ovidiu Panait2cdfed22020-07-24 14:12:09 +0300593config SYS_HAS_SRAM
594 bool
595 default y if TARGET_PIC32MZDASK
596 default y if TARGET_DEVKIT8000
597 default y if TARGET_TRICORDER
Ovidiu Panait2cdfed22020-07-24 14:12:09 +0300598 help
599 Enable this to allow support for the on board SRAM.
600 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
601 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
602
Ovidiu Panait62749212020-07-24 14:12:10 +0300603config SYS_SRAM_BASE
604 hex
605 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait0a2ef262020-07-24 14:12:12 +0300606 default 0x40200000 if TARGET_DEVKIT8000
607 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panait62749212020-07-24 14:12:10 +0300608 default 0x0
609
Ovidiu Panaitcb229962020-07-24 14:12:11 +0300610config SYS_SRAM_SIZE
611 hex
612 default 0x00080000 if TARGET_PIC32MZDASK
613 default 0x10000 if TARGET_DEVKIT8000
614 default 0x10000 if TARGET_TRICORDER
615 default 0x0
616
Tom Rini7f184322022-10-28 20:27:07 -0400617config SYS_MONITOR_LEN
618 int "Maximum size in bytes reserved for U-Boot in memory"
619 default 1048576 if X86
Andre Przywara5b3c3372022-11-19 16:10:59 +0000620 default 786432 if ARCH_SUNXI
Tom Rini7f184322022-10-28 20:27:07 -0400621 default 0
622 help
623 Size of memory reserved for monitor code, used to determine
624 _at_compile_time_ (!) if the environment is embedded within the
625 U-Boot image, or in a separate flash sector, among other uses where
626 we need to set a maximum size of the U-Boot binary itself that will
627 be loaded.
628
Ashok Reddy Soma1e6f9962022-01-17 10:16:50 +0100629config MP
630 bool "Support for multiprocessor"
631 help
632 This provides an option to bringup different processors
633 in multiprocessor cases.
634
Simon Glassf7b09e22023-09-14 10:55:54 -0600635config HAVE_TEXT_BASE
636 bool
637 depends on !NIOS2 && !XTENSA
638 depends on !EFI_APP
639 default y
640
641config TEXT_BASE
642 depends on HAVE_TEXT_BASE
643 default 0x0 if POSITION_INDEPENDENT
644 default 0x80800000 if ARCH_OMAP2PLUS || ARCH_K3
645 default 0x81700000 if MACH_SUNIV
646 default 0x2a000000 if MACH_SUN9I
647 default 0x4a000000 if SUNXI_MINIMUM_DRAM_MB >= 256
648 default 0x42e00000 if SUNXI_MINIMUM_DRAM_MB >= 64
649 hex "Text Base"
650 help
Jesse Taube93ee5c82023-08-24 21:59:48 -0400651 The address in memory that U-Boot will be copied and executed from
652 initially.
653
654config HAVE_SYS_UBOOT_START
655 bool "Use custom U-Boot Start"
656 depends on HAVE_TEXT_BASE
657 help
658 By default, the address in memory that U-Boot will be copied from
659 (TEXT_BASE) and the entry point are the same. Select this to start the
660 execution of U-Boot from a different address.
661 This may be required if a header or vector table needs to be copied
662 but not executed.
663
664config SYS_UBOOT_START
665 hex
666 depends on HAVE_TEXT_BASE
667 default TEXT_BASE
668 prompt "U-Boot entry" if HAVE_SYS_UBOOT_START
669 help
670 If TEXT_BASE differs from the start of execution, this sets the
671 address in memory that U-Boot will start execution from initially.
Simon Glassf7b09e22023-09-14 10:55:54 -0600672
673config HAVE_SYS_MONITOR_BASE
674 bool
675 depends on ARC || MIPS || M68K || NIOS2 || PPC || XTENSA || X86 \
676 || ENV_IS_IN_FLASH || MTD_NOR_FLASH
677 depends on !EFI_APP
678 default y
679
680config SYS_MONITOR_BASE
681 depends on HAVE_SYS_MONITOR_BASE
682 hex "Physical start address of boot monitor code"
683 default TEXT_BASE
684 help
685 The physical start address of boot monitor code (which is the same as
686 CONFIG_TEXT_BASE when linking) and the same as CFG_SYS_FLASH_BASE
687 when booting from flash.
688
689config SPL_SYS_MONITOR_BASE
690 depends on MPC85xx && SPL && HAVE_SYS_MONITOR_BASE
691 hex "Physical start address of SPL monitor code"
692 default SPL_TEXT_BASE
693
694config TPL_SYS_MONITOR_BASE
695 depends on MPC85xx && TPL && HAVE_SYS_MONITOR_BASE
696 hex "Physical start address of TPL monitor code"
697
698config DYNAMIC_SYS_CLK_FREQ
699 bool "Determine CPU clock frequency at run-time"
700 help
701 Implement a get_board_sys_clk function that will determine the CPU
702 clock frequency at run time, rather than define it statically.
703
704config SYS_CLK_FREQ
705 depends on !DYNAMIC_SYS_CLK_FREQ
706 int "CPU clock frequency"
707 default 125000000 if ARCH_LS1012A
708 default 100000000 if ARCH_P2020 || ARCH_T1024 || ARCH_T1042 || \
709 ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3
710 default 66666666 if ARCH_P1010 || ARCH_P1020 || ARCH_T4240
711 default 66660000 if ARCH_T2080
712 default 33333333 if RCAR_GEN3
713 default 24000000 if ARCH_EXYNOS
714 default 20000000 if RCAR_GEN2
715 default 0
716 help
717 A static value for the CPU frequency. Note that if not required
718 for a given SoC, this can be left at 0.
Masahiro Yamada9eeddf22014-11-26 18:42:31 +0900719
Greg Malysa547f54c2024-03-19 22:16:07 -0400720config HAS_LDR
721 bool
722 help
723 Enables building .ldr targets for U-Boot and SPL. This does not
724 automatically build any additional targets with make or buildman.
725
726config LDR_CPU
727 string "CPU name to be passed to LDR utility."
728 depends on HAS_LDR
729 help
730 Set the CPU name for the -T parameter in the LDR utility. This is
731 generally used on processors from Analog Devices, but may be also
732 be useful for other vendors.
733
Emmanuel Vadotaa020992017-01-31 12:17:04 +0100734source "api/Kconfig"
735
Simon Glass06c10352023-09-14 10:55:40 -0600736endmenu # General setup
737
Simon Glass91944df2021-10-14 12:47:54 -0600738source "boot/Kconfig"
739
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +0900740source "common/Kconfig"
741
Simon Glass29499a02016-01-17 20:53:51 -0700742source "cmd/Kconfig"
743
Patrick Delaunaydc280602017-01-27 11:00:35 +0100744source "disk/Kconfig"
745
Masahiro Yamada9fadbc82014-09-22 19:59:05 +0900746source "dts/Kconfig"
747
Simon Glass547cb402017-08-03 12:21:49 -0600748source "env/Kconfig"
749
Masahiro Yamadaf3e12b72014-09-16 16:32:58 +0900750source "net/Kconfig"
751
752source "drivers/Kconfig"
753
754source "fs/Kconfig"
755
756source "lib/Kconfig"
Simon Glass9dd430d2015-02-05 21:41:37 -0700757
758source "test/Kconfig"
Simon Glass31b24b42020-09-10 20:21:27 -0600759
760source "tools/Kconfig"