blob: 927e2def085d449868bea2461086e38d1b845ea6 [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
Simon Glassfd8497d2023-09-26 08:14:24 -0600298config SPL_SYS_MALLOC_F
299 bool "Enable malloc() pool in SPL"
300 depends on SPL_FRAMEWORK && SYS_MALLOC_F && SPL
301 default y
302 help
303 In SPL memory is very limited on many platforms. Still,
304 we can provide a small malloc() pool if needed. Driver model in
305 particular needs this to operate, so that it can allocate the
306 initial serial device and any others that are needed.
307
Andy Yanf1896c42017-07-24 17:43:34 +0800308config SPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700309 hex "Size of malloc() pool in SPL"
Adam Ford05705562019-08-13 14:32:30 -0500310 depends on SYS_MALLOC_F && SPL
Heinrich Schuchardt3b7b7382023-08-01 15:33:41 +0200311 default 0x0 if !SPL_FRAMEWORK
Marek Vasut56023302018-10-03 12:44:13 +0200312 default 0x2800 if RCAR_GEN3
Peng Fan19ed25b2022-09-15 09:38:18 +0800313 default 0x2000 if IMX8MQ
Michal Simek14aa2102018-07-24 14:47:43 +0200314 default SYS_MALLOC_F_LEN
315 help
Simon Glassfd8497d2023-09-26 08:14:24 -0600316 Sets the size of the malloc() pool in SPL. This is used for
317 driver model and other features, which must allocate memory for
318 data structures.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200319
Simon Glass82e26e02023-09-26 08:14:16 -0600320 It is possible to enable CFG_SPL_SYS_MALLOC_START to start a new
Simon Glass14261742021-01-21 13:57:06 -0700321 malloc() region in SDRAM once it is inited.
322
Simon Glassfd8497d2023-09-26 08:14:24 -0600323config TPL_SYS_MALLOC_F
324 bool "Enable malloc() pool in SPL"
325 depends on SYS_MALLOC_F && TPL
326 default y if SPL_SYS_MALLOC_F
327 help
328 In TPL memory is very limited on many platforms. Still,
329 we can provide a small malloc() pool if needed. Driver model in
330 particular needs this to operate, so that it can allocate the
331 initial serial device and any others that are needed.
332
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200333config TPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700334 hex "Size of malloc() pool in TPL"
Adam Ford05705562019-08-13 14:32:30 -0500335 depends on SYS_MALLOC_F && TPL
Simon Glass14261742021-01-21 13:57:06 -0700336 default SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200337 help
Simon Glassfd8497d2023-09-26 08:14:24 -0600338 Sets the size of the malloc() pool in TPL. This is used for
339 driver model and other features, which must allocate memory for
340 data structures.
Andy Yanf1896c42017-07-24 17:43:34 +0800341
Sean Andersonfba08822022-03-23 14:04:48 -0400342config VALGRIND
343 bool "Inform valgrind about memory allocations"
Sean Anderson1e5514f2022-05-27 10:03:00 -0400344 depends on !RISCV
Sean Andersonfba08822022-03-23 14:04:48 -0400345 help
346 Valgrind is an instrumentation framework for building dynamic analysis
347 tools. In particular, it may be used to detect memory management bugs
348 in U-Boot. It relies on knowing when heap blocks are allocated in
349 order to give accurate results. This happens automatically for
350 standard allocator functions provided by the host OS. However, this
351 doesn't automatically happen for U-Boot's malloc implementation.
352
353 Enable this option to annotate U-Boot's malloc implementation so that
354 it can be handled accurately by Valgrind. If you aren't planning on
355 using valgrind to debug U-Boot, say 'n'.
356
Simon Glassfd8497d2023-09-26 08:14:24 -0600357config VPL_SYS_MALLOC_F
358 bool "Enable malloc() pool in VPL"
359 depends on SYS_MALLOC_F && VPL
360 default y if SPL_SYS_MALLOC_F
361 help
362 In VPL memory is very limited on many platforms. Still,
363 we can provide a small malloc() pool if needed. Driver model in
364 particular needs this to operate, so that it can allocate the
365 initial serial device and any others that are needed.
366
Simon Glass747093d2022-04-30 00:56:53 -0600367config VPL_SYS_MALLOC_F_LEN
368 hex "Size of malloc() pool in VPL before relocation"
369 depends on SYS_MALLOC_F && VPL
370 default SYS_MALLOC_F_LEN
371 help
Simon Glassfd8497d2023-09-26 08:14:24 -0600372 Sets the size of the malloc() pool in VPL. This is used for
373 driver model and other features, which must allocate memory for
374 data structures.
Simon Glass747093d2022-04-30 00:56:53 -0600375
Tom Rini1bf09792014-11-14 09:34:29 +0100376menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100377 bool "Configure standard U-Boot features (expert users)"
378 default y
379 help
380 This option allows certain base U-Boot options and settings
381 to be disabled or tweaked. This is for specialized
382 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400383 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100384
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100385if EXPERT
386 config SYS_MALLOC_CLEAR_ON_INIT
387 bool "Init with zeros the memory reserved for malloc (slow)"
388 default y
389 help
390 This setting is enabled by default. The reserved malloc
391 memory is initialized with zeros, so first malloc calls
392 will return the pointer to the zeroed memory. But this
393 slows the boot time.
394
395 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
396 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
397 Then the boot time can be significantly reduced.
398 Warning:
399 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400400 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600401
Shengyu Qudd1eb1a2023-08-25 00:25:18 +0800402config SPL_SYS_MALLOC_CLEAR_ON_INIT
403 bool "Init with zeros the memory reserved for malloc (slow) in SPL"
404 depends on SPL
405 default SYS_MALLOC_CLEAR_ON_INIT
406 help
407 Same as SYS_MALLOC_CLEAR_ON_INIT, but for SPL. It's possible to
408 Enable it without SYS_MALLOC_CLEAR_ON_INIT. It's useful for boards
409 that must have particular memory regions zero'ed before first use.
410 If SYS_SPL_MALLOC_START is configured to be in such region, this
411 option should be enabled.
412
Marek Bykowski9297e362020-04-29 18:23:07 +0200413config SYS_MALLOC_DEFAULT_TO_INIT
414 bool "Default malloc to init while reserving the memory for it"
Marek Bykowski9297e362020-04-29 18:23:07 +0200415 help
416 It may happen that one needs to move the dynamic allocation
417 from one to another memory range, eg. when moving the malloc
418 from the limited static to a potentially large dynamic (DDR)
419 memory.
420
421 If so then on top of setting the updated memory aside one
422 needs to bring the malloc init.
423
424 If such a scenario is sought choose yes.
425
Simon Glass022885c2016-06-30 10:52:20 -0600426config TOOLS_DEBUG
427 bool "Enable debug information for tools"
428 help
429 Enable generation of debug information for tools such as mkimage.
430 This can be used for debugging purposes. With debug information
431 it is possible to set breakpoints on particular lines, single-step
432 debug through the source code, etc.
433
Robert P. J. Day266aa862017-01-02 16:32:13 -0500434endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900435
436config PHYS_64BIT
437 bool "64bit physical address support"
Johan Jonker53c50932023-03-13 01:33:23 +0100438 select FDT_64BIT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900439 help
440 Say Y here to support 64bit physical memory address.
441 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300442 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900443
Johan Jonker53c50932023-03-13 01:33:23 +0100444config FDT_64BIT
445 bool "64bit fdt address support"
446 help
447 Say Y here to support 64bit fdt addresses.
448 This can be used not only for 64bit SoCs, but also
449 for large address extensions on 32bit SoCs.
450
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600451config HAS_ROM
452 bool
453 select BINMAN
454 help
455 Enables building of a u-boot.rom target. This collects U-Boot and
456 any necessary binary blobs.
457
Stefan Roese9ea6f712019-04-03 15:24:50 +0200458config SPL_IMAGE
459 string "SPL image used in the combined SPL+U-Boot image"
460 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
461 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500462 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200463 help
464 Select the SPL build target that shall be generated by the SPL
465 build process (default spl/u-boot-spl.bin). This image will be
466 used to generate a combined image with SPL and main U-Boot
467 proper as one single image.
468
Alper Nebi Yasaka8c281d2022-01-29 18:25:30 +0300469config REMAKE_ELF
470 bool "Recreate an ELF image from raw U-Boot binary"
471 help
472 Enable this to recreate an ELF image (u-boot.elf) from the raw
473 U-Boot binary (u-boot.bin), which may already have been statically
474 relocated and may already have a device-tree appended to it.
475
Jagan Tekidc146ca2019-01-18 12:52:49 +0530476config BUILD_TARGET
477 string "Build target special images"
Hai Pham5a3b0742023-02-28 22:22:03 +0100478 default "u-boot-elf.srec" if RCAR_64
Marek Vasut66e49f02023-02-28 07:22:21 +0100479 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
480 default "u-boot-with-spl.bin" if MPC85xx && !E500MC && !E5500 && !E6500 && SPL
481 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
482 default "u-boot-with-spl.kwb" if ARMADA_32BIT && SPL
Dalon Westergreene3ada912019-03-20 13:15:21 -0700483 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
484 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Simon Glassa32dd072020-07-19 13:56:12 -0600485 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Samuel Holland25bc7bf2023-01-22 11:23:51 -0600486 RISCV || ARCH_ZYNQMP)
Pali RohĂĄrf0b1a1e2022-12-29 02:39:19 +0100487 default "u-boot.kwb" if (ARCH_KIRKWOOD || ARMADA_32BIT) && !SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530488 help
489 Some SoCs need special image types (e.g. U-Boot binary
490 with a special header) as build targets. By defining
491 CONFIG_BUILD_TARGET in the SoC / board header, this
492 special image will be automatically built upon calling
493 make / buildman.
494
Tom Rini95b64172022-03-30 18:07:11 -0400495config HAS_BOARD_SIZE_LIMIT
496 bool "Define a maximum size for the U-Boot image"
Hai Pham5a3b0742023-02-28 22:22:03 +0100497 default y if RCAR_64
Tom Rini95b64172022-03-30 18:07:11 -0400498 help
499 In some cases, we need to enforce a hard limit on how big the U-Boot
500 image itself can be.
501
502config BOARD_SIZE_LIMIT
503 int "Maximum size of the U-Boot image in bytes"
Hai Pham5a3b0742023-02-28 22:22:03 +0100504 default 1048576 if RCAR_64
Tom Rini95b64172022-03-30 18:07:11 -0400505 depends on HAS_BOARD_SIZE_LIMIT
506 help
507 Maximum size of the U-Boot image. When defined, the build system
508 checks that the actual size does not exceed it. This does not
509 include SPL nor TPL, on platforms that use that functionality, they
510 have a separate option to restict size.
511
Tom Rinid760a5e2019-06-02 08:57:32 -0400512config SYS_CUSTOM_LDSCRIPT
513 bool "Use a custom location for the U-Boot linker script"
514 help
515 Normally when linking U-Boot we will look in the board directory,
516 the CPU directory and finally the "cpu" directory of the architecture
517 for the ile "u-boot.lds" and use that as our linker. However, in
518 some cases we need to provide a different linker script. To do so,
519 enable this option and then provide the location under
520 CONFIG_SYS_LDSCRIPT.
521
522config SYS_LDSCRIPT
523 depends on SYS_CUSTOM_LDSCRIPT
524 string "Custom ldscript location"
525 help
526 Path within the source tree to the linker script to use for the
527 main U-Boot binary.
528
Tom Rini49c8ef02021-08-23 10:25:31 -0400529config SYS_LOAD_ADDR
530 hex "Address in memory to use by default"
531 default 0x01000000 if ARCH_SOCFPGA
532 default 0x02000000 if PPC || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500533 default 0x81000000 if MACH_SUNIV
Tom Rini49c8ef02021-08-23 10:25:31 -0400534 default 0x22000000 if MACH_SUN9I
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500535 default 0x42000000 if ARCH_SUNXI
Tom Rini49c8ef02021-08-23 10:25:31 -0400536 default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
537 default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
538 default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
539 default 0x80800000 if ARCH_MX7
540 default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
541 help
542 Address in memory to use as the default safe load address.
543
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200544config ERR_PTR_OFFSET
545 hex
546 default 0x0
547 help
548 Some U-Boot pointers have redundant information, so we can use a
549 scheme where we can return either an error code or a pointer with the
550 same return value. The default implementation just casts the pointer
551 to a number, however, this may fail on platforms where the end of the
552 address range is used for valid pointers (e.g. 0xffffff00 is a valid
553 heap pointer in socfpga SPL).
554 For such platforms, this value provides an upper range of those error
555 pointer values - up to 'MAX_ERRNO' bytes below this value must be
556 unused/invalid addresses.
557
Michal Simeke14ba8a2020-03-30 13:58:59 +0200558config PLATFORM_ELFENTRY
559 string
560 default "__start" if MIPS
561 default "_start"
562
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200563config STACK_SIZE
564 hex "Define max stack size that can be used by U-Boot"
Michal Simekf6aebdf2022-09-19 14:21:02 +0200565 default 0x4000000 if ARCH_VERSAL_NET || ARCH_VERSAL || ARCH_ZYNQMP
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200566 default 0x200000 if MICROBLAZE
567 default 0x1000000
568 help
569 Define Max stack size that can be used by U-Boot. This value is used
570 by the UEFI sub-system. On some boards initrd_high is calculated as
571 base stack pointer minus this stack size.
572
Tom Rini24c904f2022-04-06 10:33:32 -0400573config SYS_MEM_TOP_HIDE
574 hex "Exclude some memory from U-Boot / OS information"
575 default 0x0
576 help
577 If set, this specified memory area will get subtracted from the top
578 (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
579 gd->ram_size the OS / next stage should gets passed the now
580 "corrected" memory size and won't touch it either.
581 WARNING: Please make sure that this value is a multiple of the OS
582 page size.
583
Ovidiu Panait7be19312020-07-24 14:12:09 +0300584config SYS_HAS_SRAM
585 bool
586 default y if TARGET_PIC32MZDASK
587 default y if TARGET_DEVKIT8000
588 default y if TARGET_TRICORDER
Ovidiu Panait7be19312020-07-24 14:12:09 +0300589 help
590 Enable this to allow support for the on board SRAM.
591 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
592 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
593
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300594config SYS_SRAM_BASE
595 hex
596 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait9a17bfb2020-07-24 14:12:12 +0300597 default 0x40200000 if TARGET_DEVKIT8000
598 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300599 default 0x0
600
Ovidiu Panait9f63f022020-07-24 14:12:11 +0300601config SYS_SRAM_SIZE
602 hex
603 default 0x00080000 if TARGET_PIC32MZDASK
604 default 0x10000 if TARGET_DEVKIT8000
605 default 0x10000 if TARGET_TRICORDER
606 default 0x0
607
Tom Rini08574ed2022-10-28 20:27:07 -0400608config SYS_MONITOR_LEN
609 int "Maximum size in bytes reserved for U-Boot in memory"
610 default 1048576 if X86
Andre Przywarab072aef2022-11-19 16:10:59 +0000611 default 786432 if ARCH_SUNXI
Tom Rini08574ed2022-10-28 20:27:07 -0400612 default 0
613 help
614 Size of memory reserved for monitor code, used to determine
615 _at_compile_time_ (!) if the environment is embedded within the
616 U-Boot image, or in a separate flash sector, among other uses where
617 we need to set a maximum size of the U-Boot binary itself that will
618 be loaded.
619
Ashok Reddy Soma480245c2022-01-17 10:16:50 +0100620config MP
621 bool "Support for multiprocessor"
622 help
623 This provides an option to bringup different processors
624 in multiprocessor cases.
625
Simon Glass064a57d2023-09-14 10:55:54 -0600626config HAVE_TEXT_BASE
627 bool
628 depends on !NIOS2 && !XTENSA
629 depends on !EFI_APP
630 default y
631
632config TEXT_BASE
633 depends on HAVE_TEXT_BASE
634 default 0x0 if POSITION_INDEPENDENT
635 default 0x80800000 if ARCH_OMAP2PLUS || ARCH_K3
636 default 0x81700000 if MACH_SUNIV
637 default 0x2a000000 if MACH_SUN9I
638 default 0x4a000000 if SUNXI_MINIMUM_DRAM_MB >= 256
639 default 0x42e00000 if SUNXI_MINIMUM_DRAM_MB >= 64
640 hex "Text Base"
641 help
Jesse Taube6ab77bb2023-08-24 21:59:48 -0400642 The address in memory that U-Boot will be copied and executed from
643 initially.
644
645config HAVE_SYS_UBOOT_START
646 bool "Use custom U-Boot Start"
647 depends on HAVE_TEXT_BASE
648 help
649 By default, the address in memory that U-Boot will be copied from
650 (TEXT_BASE) and the entry point are the same. Select this to start the
651 execution of U-Boot from a different address.
652 This may be required if a header or vector table needs to be copied
653 but not executed.
654
655config SYS_UBOOT_START
656 hex
657 depends on HAVE_TEXT_BASE
658 default TEXT_BASE
659 prompt "U-Boot entry" if HAVE_SYS_UBOOT_START
660 help
661 If TEXT_BASE differs from the start of execution, this sets the
662 address in memory that U-Boot will start execution from initially.
Simon Glass064a57d2023-09-14 10:55:54 -0600663
664config HAVE_SYS_MONITOR_BASE
665 bool
666 depends on ARC || MIPS || M68K || NIOS2 || PPC || XTENSA || X86 \
667 || ENV_IS_IN_FLASH || MTD_NOR_FLASH
668 depends on !EFI_APP
669 default y
670
671config SYS_MONITOR_BASE
672 depends on HAVE_SYS_MONITOR_BASE
673 hex "Physical start address of boot monitor code"
674 default TEXT_BASE
675 help
676 The physical start address of boot monitor code (which is the same as
677 CONFIG_TEXT_BASE when linking) and the same as CFG_SYS_FLASH_BASE
678 when booting from flash.
679
680config SPL_SYS_MONITOR_BASE
681 depends on MPC85xx && SPL && HAVE_SYS_MONITOR_BASE
682 hex "Physical start address of SPL monitor code"
683 default SPL_TEXT_BASE
684
685config TPL_SYS_MONITOR_BASE
686 depends on MPC85xx && TPL && HAVE_SYS_MONITOR_BASE
687 hex "Physical start address of TPL monitor code"
688
689config DYNAMIC_SYS_CLK_FREQ
690 bool "Determine CPU clock frequency at run-time"
691 help
692 Implement a get_board_sys_clk function that will determine the CPU
693 clock frequency at run time, rather than define it statically.
694
695config SYS_CLK_FREQ
696 depends on !DYNAMIC_SYS_CLK_FREQ
697 int "CPU clock frequency"
698 default 125000000 if ARCH_LS1012A
699 default 100000000 if ARCH_P2020 || ARCH_T1024 || ARCH_T1042 || \
700 ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3
701 default 66666666 if ARCH_P1010 || ARCH_P1020 || ARCH_T4240
702 default 66660000 if ARCH_T2080
703 default 33333333 if RCAR_GEN3
704 default 24000000 if ARCH_EXYNOS
705 default 20000000 if RCAR_GEN2
706 default 0
707 help
708 A static value for the CPU frequency. Note that if not required
709 for a given SoC, this can be left at 0.
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900710
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100711source "api/Kconfig"
712
Simon Glassd761eea2023-09-14 10:55:40 -0600713endmenu # General setup
714
Simon Glass19a91f22021-10-14 12:47:54 -0600715source "boot/Kconfig"
716
Masahiro Yamadaed363232014-09-16 16:32:58 +0900717source "common/Kconfig"
718
Simon Glass72a8cf82016-01-17 20:53:51 -0700719source "cmd/Kconfig"
720
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100721source "disk/Kconfig"
722
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900723source "dts/Kconfig"
724
Simon Glass0649cd02017-08-03 12:21:49 -0600725source "env/Kconfig"
726
Masahiro Yamadaed363232014-09-16 16:32:58 +0900727source "net/Kconfig"
728
729source "drivers/Kconfig"
730
731source "fs/Kconfig"
732
733source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700734
735source "test/Kconfig"
Simon Glass1fa057b2020-09-10 20:21:27 -0600736
737source "tools/Kconfig"