blob: 797038b0371db228933df6494cf611cbdafdd62c [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
Tom Rini67f51b42020-05-14 08:30:06 -0400157config CC_HAS_ASM_INLINE
158 def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
159
Peng Fan75189732020-08-06 12:42:45 +0300160config XEN
161 bool "Select U-Boot be run as a bootloader for XEN Virtual Machine"
162 help
163 Enabling this option will make U-Boot be run as a bootloader
164 for XEN [1] Virtual Machine.
165
166 Xen is a virtual machine monitor (VMM) or a type-1 hypervisor with support
167 for para-virtualization. Xen can organize the safe execution of several
168 virtual machines on the same physical system with performance close to
169 native. It is used as the basis for a number of different commercial and
170 open source applications, such as: server virtualization, Infrastructure
171 as a Service (IaaS), desktop virtualization, security applications,
172 embedded and hardware appliances.
173 Xen has a special VM called Domain-0 that runs the Dom0 kernel and allows
174 Xen to use the device drivers for the Domain-0 kernel by default.
175
176 [1] - https://xenproject.org/
177
Hans de Goede9f823612016-06-20 23:16:28 +0200178config DISTRO_DEFAULTS
179 bool "Select defaults suitable for booting general purpose Linux distributions"
Michal Simek58008cb2018-07-23 15:55:15 +0200180 select AUTO_COMPLETE
181 select CMDLINE_EDITING
Masahiro Yamada26959272016-08-12 08:31:16 -0400182 select CMD_BOOTI if ARM64
Michal Simek58008cb2018-07-23 15:55:15 +0200183 select CMD_BOOTZ if ARM && !ARM64
Joe Hershbergerba628852018-04-13 15:26:31 -0500184 select CMD_DHCP if CMD_NET
Masahiro Yamadac4f66832018-04-25 19:16:48 +0900185 select CMD_ENV_EXISTS
Hans de Goede9f823612016-06-20 23:16:28 +0200186 select CMD_EXT2
187 select CMD_EXT4
188 select CMD_FAT
189 select CMD_FS_GENERIC
Tom Rinifa2c1462018-02-10 16:54:38 -0500190 select CMD_PART if PARTITIONS
Michal Simek58008cb2018-07-23 15:55:15 +0200191 select CMD_PING if CMD_NET
192 select CMD_PXE if NET
Patrice Chotard993c9122019-11-25 09:07:38 +0100193 select CMD_SYSBOOT
Adam Fordd021e942018-02-06 07:58:59 -0600194 select ENV_VARS_UBOOT_CONFIG
Michal Simek58008cb2018-07-23 15:55:15 +0200195 select HUSH_PARSER
196 select SUPPORT_RAW_INITRD
197 select SYS_LONGHELP
198 imply CMD_MII if NET
Alexander Graf4aa74922018-10-18 09:33:03 +0200199 imply USB_STORAGE
Michal Simek58008cb2018-07-23 15:55:15 +0200200 imply USE_BOOTCOMMAND
Hans de Goede9f823612016-06-20 23:16:28 +0200201 help
202 Select this to enable various options and commands which are suitable
203 for building u-boot for booting general purpose Linux distributions.
204
Adam Fordd021e942018-02-06 07:58:59 -0600205config ENV_VARS_UBOOT_CONFIG
206 bool "Add arch, board, vendor and soc variables to default environment"
207 help
208 Define this in order to add variables describing the
209 U-Boot build configuration to the default environment.
210 These will be named arch, cpu, board, vendor, and soc.
211 Enabling this option will cause the following to be defined:
212 - CONFIG_SYS_ARCH
213 - CONFIG_SYS_CPU
214 - CONFIG_SYS_BOARD
215 - CONFIG_SYS_VENDOR
216 - CONFIG_SYS_SOC
217
Ramon Fried999a7722018-08-14 01:00:04 +0300218config NR_DRAM_BANKS
219 int "Number of DRAM banks"
Amit Singh Tomard5c819b2020-04-19 19:28:34 +0530220 default 1 if ARCH_SUNXI || ARCH_OWL
Ramon Fried999a7722018-08-14 01:00:04 +0300221 default 4
222 help
223 This defines the number of DRAM banks.
224
Derald D. Woods405fc832018-01-22 17:17:10 -0600225config SYS_BOOT_GET_CMDLINE
226 bool "Enable kernel command line setup"
227 help
228 Enables allocating and saving kernel cmdline in space between
229 "bootm_low" and "bootm_low" + BOOTMAPSZ.
230
231config SYS_BOOT_GET_KBD
232 bool "Enable kernel board information setup"
233 help
234 Enables allocating and saving a kernel copy of the bd_info in
235 space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
236
Simon Glassb724bd72015-02-11 16:32:59 -0700237config SYS_MALLOC_F
238 bool "Enable malloc() pool before relocation"
Masahiro Yamada326a6822015-03-19 19:42:55 +0900239 default y if DM
Simon Glass15a5c722018-12-03 04:37:17 -0700240
Simon Glassb724bd72015-02-11 16:32:59 -0700241 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400242 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700243 we can provide a small malloc() pool if needed. Driver model in
244 particular needs this to operate, so that it can allocate the
245 initial serial device and any others that are needed.
246
247config SYS_MALLOC_F_LEN
248 hex "Size of malloc() pool before relocation"
249 depends on SYS_MALLOC_F
Tom Rinie0568922022-04-07 12:33:23 -0400250 default 0x400 if M68K || PPC || ROCKCHIP_PX30 || ROCKCHIP_RK3036 || \
251 ROCKCHIP_RK3308 || ROCKCHIP_RV1108
252 default 0x600 if ARCH_ZYNQMP_R5 || ARCH_ZYNQMP
253 default 0x800 if ARCH_ZYNQ || ROCKCHIP_RK3128 || ROCKCHIP_RK3188 || \
254 ROCKCHIP_RK322X || X86
Tom Rini4448d0c2022-04-07 12:33:24 -0400255 default 0x1000 if ARCH_MESON || ARCH_BMIPS || ARCH_MTMIPS
Tom Rinie0568922022-04-07 12:33:23 -0400256 default 0x1800 if ARCH_TEGRA
257 default 0x4000 if SANDBOX || RISCV || ARCH_APPLE || ROCKCHIP_RK3368 || \
258 ROCKCHIP_RK3399
259 default 0x8000 if RCAR_GEN3
Sean Anderson3166e6f2022-04-28 12:39:49 -0400260 default 0x10000 if ARCH_IMX8 || (ARCH_IMX8M && !IMX8MQ)
Tom Rinie0568922022-04-07 12:33:23 -0400261 default 0x2000
Simon Glassb724bd72015-02-11 16:32:59 -0700262 help
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400263 Before relocation, memory is very limited on many platforms. Still,
Simon Glassb724bd72015-02-11 16:32:59 -0700264 we can provide a small malloc() pool if needed. Driver model in
265 particular needs this to operate, so that it can allocate the
266 initial serial device and any others that are needed.
267
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530268config SYS_MALLOC_LEN
269 hex "Define memory for Dynamic allocation"
Tom Rini46d940c2022-04-14 11:34:47 -0400270 default 0x4000000 if SANDBOX
Tom Rini7cfbba32021-08-28 21:34:49 -0400271 default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
Tom Rini7cfbba32021-08-28 21:34:49 -0400272 default 0x200000 if ARCH_BMIPS || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500273 default 0x120000 if MACH_SUNIV
274 default 0x220000 if MACH_SUN8I_V3S
275 default 0x4020000 if ARCH_SUNXI
Tom Rini7cfbba32021-08-28 21:34:49 -0400276 default 0x400000
Siva Durga Prasad Paladugu01aa5b82018-07-20 15:11:38 +0530277 help
278 This defines memory to be allocated for Dynamic allocation
279 TODO: Use for other architectures
280
Andy Yanf1896c42017-07-24 17:43:34 +0800281config SPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700282 hex "Size of malloc() pool in SPL"
Adam Ford05705562019-08-13 14:32:30 -0500283 depends on SYS_MALLOC_F && SPL
Pali RohĂĄrb6169472022-04-08 10:28:05 +0200284 default 0 if !SPL_FRAMEWORK
Marek Vasut56023302018-10-03 12:44:13 +0200285 default 0x2800 if RCAR_GEN3
Michal Simek14aa2102018-07-24 14:47:43 +0200286 default SYS_MALLOC_F_LEN
287 help
Simon Glass14261742021-01-21 13:57:06 -0700288 In SPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200289 we can provide a small malloc() pool if needed. Driver model in
290 particular needs this to operate, so that it can allocate the
291 initial serial device and any others that are needed.
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200292
Simon Glass14261742021-01-21 13:57:06 -0700293 It is possible to enable CONFIG_SYS_SPL_MALLOC_START to start a new
294 malloc() region in SDRAM once it is inited.
295
Philipp Tomsichae2cee22017-07-28 11:06:03 +0200296config TPL_SYS_MALLOC_F_LEN
Simon Glass14261742021-01-21 13:57:06 -0700297 hex "Size of malloc() pool in TPL"
Adam Ford05705562019-08-13 14:32:30 -0500298 depends on SYS_MALLOC_F && TPL
Simon Glass14261742021-01-21 13:57:06 -0700299 default SPL_SYS_MALLOC_F_LEN
Michal Simek14aa2102018-07-24 14:47:43 +0200300 help
Simon Glass14261742021-01-21 13:57:06 -0700301 In TPL memory is very limited on many platforms. Still,
Michal Simek14aa2102018-07-24 14:47:43 +0200302 we can provide a small malloc() pool if needed. Driver model in
303 particular needs this to operate, so that it can allocate the
304 initial serial device and any others that are needed.
Andy Yanf1896c42017-07-24 17:43:34 +0800305
Sean Andersonfba08822022-03-23 14:04:48 -0400306config VALGRIND
307 bool "Inform valgrind about memory allocations"
308 help
309 Valgrind is an instrumentation framework for building dynamic analysis
310 tools. In particular, it may be used to detect memory management bugs
311 in U-Boot. It relies on knowing when heap blocks are allocated in
312 order to give accurate results. This happens automatically for
313 standard allocator functions provided by the host OS. However, this
314 doesn't automatically happen for U-Boot's malloc implementation.
315
316 Enable this option to annotate U-Boot's malloc implementation so that
317 it can be handled accurately by Valgrind. If you aren't planning on
318 using valgrind to debug U-Boot, say 'n'.
319
Simon Glass747093d2022-04-30 00:56:53 -0600320config VPL_SYS_MALLOC_F_LEN
321 hex "Size of malloc() pool in VPL before relocation"
322 depends on SYS_MALLOC_F && VPL
323 default SYS_MALLOC_F_LEN
324 help
325 Before relocation, memory is very limited on many platforms. Still,
326 we can provide a small malloc() pool if needed. Driver model in
327 particular needs this to operate, so that it can allocate the
328 initial serial device and any others that are needed.
329
Tom Rini1bf09792014-11-14 09:34:29 +0100330menuconfig EXPERT
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100331 bool "Configure standard U-Boot features (expert users)"
332 default y
333 help
334 This option allows certain base U-Boot options and settings
335 to be disabled or tweaked. This is for specialized
336 environments which can tolerate a "non-standard" U-Boot.
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400337 Use this only if you really know what you are doing.
Tom Rini1bf09792014-11-14 09:34:29 +0100338
Przemyslaw Marczak0aa8a4a2015-03-04 14:01:24 +0100339if EXPERT
340 config SYS_MALLOC_CLEAR_ON_INIT
341 bool "Init with zeros the memory reserved for malloc (slow)"
342 default y
343 help
344 This setting is enabled by default. The reserved malloc
345 memory is initialized with zeros, so first malloc calls
346 will return the pointer to the zeroed memory. But this
347 slows the boot time.
348
349 It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
350 value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
351 Then the boot time can be significantly reduced.
352 Warning:
353 When disabling this, please check if malloc calls, maybe
Robert P. J. Day59d7c342016-04-16 05:53:07 -0400354 should be replaced by calloc - if one expects zeroed memory.
Simon Glass022885c2016-06-30 10:52:20 -0600355
Marek Bykowski9297e362020-04-29 18:23:07 +0200356config SYS_MALLOC_DEFAULT_TO_INIT
357 bool "Default malloc to init while reserving the memory for it"
Marek Bykowski9297e362020-04-29 18:23:07 +0200358 help
359 It may happen that one needs to move the dynamic allocation
360 from one to another memory range, eg. when moving the malloc
361 from the limited static to a potentially large dynamic (DDR)
362 memory.
363
364 If so then on top of setting the updated memory aside one
365 needs to bring the malloc init.
366
367 If such a scenario is sought choose yes.
368
Simon Glass022885c2016-06-30 10:52:20 -0600369config TOOLS_DEBUG
370 bool "Enable debug information for tools"
371 help
372 Enable generation of debug information for tools such as mkimage.
373 This can be used for debugging purposes. With debug information
374 it is possible to set breakpoints on particular lines, single-step
375 debug through the source code, etc.
376
Robert P. J. Day266aa862017-01-02 16:32:13 -0500377endif # EXPERT
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900378
379config PHYS_64BIT
380 bool "64bit physical address support"
381 help
382 Say Y here to support 64bit physical memory address.
383 This can be used not only for 64bit SoCs, but also for
Chris Packham3aeb7712019-01-13 22:13:19 +1300384 large physical address extension on 32bit SoCs.
Masahiro Yamadabb6b1422016-07-25 19:56:03 +0900385
Simon Glassbcd4e6f2020-07-19 13:55:52 -0600386config HAS_ROM
387 bool
388 select BINMAN
389 help
390 Enables building of a u-boot.rom target. This collects U-Boot and
391 any necessary binary blobs.
392
Stefan Roese9ea6f712019-04-03 15:24:50 +0200393config SPL_IMAGE
394 string "SPL image used in the combined SPL+U-Boot image"
395 default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
396 default "spl/u-boot-spl.bin"
Adam Ford05705562019-08-13 14:32:30 -0500397 depends on SPL
Stefan Roese9ea6f712019-04-03 15:24:50 +0200398 help
399 Select the SPL build target that shall be generated by the SPL
400 build process (default spl/u-boot-spl.bin). This image will be
401 used to generate a combined image with SPL and main U-Boot
402 proper as one single image.
403
Alper Nebi Yasaka8c281d2022-01-29 18:25:30 +0300404config REMAKE_ELF
405 bool "Recreate an ELF image from raw U-Boot binary"
406 help
407 Enable this to recreate an ELF image (u-boot.elf) from the raw
408 U-Boot binary (u-boot.bin), which may already have been statically
409 relocated and may already have a device-tree appended to it.
410
Jagan Tekidc146ca2019-01-18 12:52:49 +0530411config BUILD_TARGET
412 string "Build target special images"
Dalon Westergreene3ada912019-03-20 13:15:21 -0700413 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
414 default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
Baruch Siach0ef69202019-02-07 13:21:16 +0200415 default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530416 default "u-boot-elf.srec" if RCAR_GEN3
Simon Glassa32dd072020-07-19 13:56:12 -0600417 default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
Michal Simek5b21d642019-10-02 15:55:57 +0200418 ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
Trevor Woernerbb0fb4c2020-05-06 08:02:40 -0400419 default "u-boot.kwb" if ARCH_KIRKWOOD
Stefan Roese9ea6f712019-04-03 15:24:50 +0200420 default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
Stefan Roese4f761dd2019-09-20 18:09:10 +0200421 default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
Jagan Tekidc146ca2019-01-18 12:52:49 +0530422 help
423 Some SoCs need special image types (e.g. U-Boot binary
424 with a special header) as build targets. By defining
425 CONFIG_BUILD_TARGET in the SoC / board header, this
426 special image will be automatically built upon calling
427 make / buildman.
428
Tom Rini95b64172022-03-30 18:07:11 -0400429config HAS_BOARD_SIZE_LIMIT
430 bool "Define a maximum size for the U-Boot image"
431 default y if RCAR_GEN3
432 help
433 In some cases, we need to enforce a hard limit on how big the U-Boot
434 image itself can be.
435
436config BOARD_SIZE_LIMIT
437 int "Maximum size of the U-Boot image in bytes"
438 default 1048576 if RCAR_GEN3
439 depends on HAS_BOARD_SIZE_LIMIT
440 help
441 Maximum size of the U-Boot image. When defined, the build system
442 checks that the actual size does not exceed it. This does not
443 include SPL nor TPL, on platforms that use that functionality, they
444 have a separate option to restict size.
445
Tom Rinid760a5e2019-06-02 08:57:32 -0400446config SYS_CUSTOM_LDSCRIPT
447 bool "Use a custom location for the U-Boot linker script"
448 help
449 Normally when linking U-Boot we will look in the board directory,
450 the CPU directory and finally the "cpu" directory of the architecture
451 for the ile "u-boot.lds" and use that as our linker. However, in
452 some cases we need to provide a different linker script. To do so,
453 enable this option and then provide the location under
454 CONFIG_SYS_LDSCRIPT.
455
456config SYS_LDSCRIPT
457 depends on SYS_CUSTOM_LDSCRIPT
458 string "Custom ldscript location"
459 help
460 Path within the source tree to the linker script to use for the
461 main U-Boot binary.
462
Tom Rini49c8ef02021-08-23 10:25:31 -0400463config SYS_LOAD_ADDR
464 hex "Address in memory to use by default"
465 default 0x01000000 if ARCH_SOCFPGA
466 default 0x02000000 if PPC || X86
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500467 default 0x81000000 if MACH_SUNIV
Tom Rini49c8ef02021-08-23 10:25:31 -0400468 default 0x22000000 if MACH_SUN9I
Icenowy Zhengb6ffd582022-01-29 10:23:09 -0500469 default 0x42000000 if ARCH_SUNXI
Tom Rini49c8ef02021-08-23 10:25:31 -0400470 default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
471 default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
472 default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
473 default 0x80800000 if ARCH_MX7
474 default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
475 help
476 Address in memory to use as the default safe load address.
477
Simon Goldschmidt93db2b82019-10-22 21:29:46 +0200478config ERR_PTR_OFFSET
479 hex
480 default 0x0
481 help
482 Some U-Boot pointers have redundant information, so we can use a
483 scheme where we can return either an error code or a pointer with the
484 same return value. The default implementation just casts the pointer
485 to a number, however, this may fail on platforms where the end of the
486 address range is used for valid pointers (e.g. 0xffffff00 is a valid
487 heap pointer in socfpga SPL).
488 For such platforms, this value provides an upper range of those error
489 pointer values - up to 'MAX_ERRNO' bytes below this value must be
490 unused/invalid addresses.
491
Michal Simeke14ba8a2020-03-30 13:58:59 +0200492config PLATFORM_ELFENTRY
493 string
494 default "__start" if MIPS
495 default "_start"
496
Heinrich Schuchardt74b869b2020-07-29 12:37:35 +0200497config STACK_SIZE
498 hex "Define max stack size that can be used by U-Boot"
499 default 0x4000000 if ARCH_VERSAL || ARCH_ZYNQMP
500 default 0x200000 if MICROBLAZE
501 default 0x1000000
502 help
503 Define Max stack size that can be used by U-Boot. This value is used
504 by the UEFI sub-system. On some boards initrd_high is calculated as
505 base stack pointer minus this stack size.
506
Tom Rini24c904f2022-04-06 10:33:32 -0400507config SYS_MEM_TOP_HIDE
508 hex "Exclude some memory from U-Boot / OS information"
509 default 0x0
510 help
511 If set, this specified memory area will get subtracted from the top
512 (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
513 gd->ram_size the OS / next stage should gets passed the now
514 "corrected" memory size and won't touch it either.
515 WARNING: Please make sure that this value is a multiple of the OS
516 page size.
517
Ovidiu Panait7be19312020-07-24 14:12:09 +0300518config SYS_HAS_SRAM
519 bool
520 default y if TARGET_PIC32MZDASK
521 default y if TARGET_DEVKIT8000
522 default y if TARGET_TRICORDER
Ovidiu Panait7be19312020-07-24 14:12:09 +0300523 help
524 Enable this to allow support for the on board SRAM.
525 SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
526 SRAM size is controlled by CONFIG_SYS_SRAM_SIZE.
527
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300528config SYS_SRAM_BASE
529 hex
530 default 0x80000000 if TARGET_PIC32MZDASK
Ovidiu Panait9a17bfb2020-07-24 14:12:12 +0300531 default 0x40200000 if TARGET_DEVKIT8000
532 default 0x40200000 if TARGET_TRICORDER
Ovidiu Panaitdd084b02020-07-24 14:12:10 +0300533 default 0x0
534
Ovidiu Panait9f63f022020-07-24 14:12:11 +0300535config SYS_SRAM_SIZE
536 hex
537 default 0x00080000 if TARGET_PIC32MZDASK
538 default 0x10000 if TARGET_DEVKIT8000
539 default 0x10000 if TARGET_TRICORDER
540 default 0x0
541
Ashok Reddy Soma480245c2022-01-17 10:16:50 +0100542config MP
543 bool "Support for multiprocessor"
544 help
545 This provides an option to bringup different processors
546 in multiprocessor cases.
547
Heinrich Schuchardtfc6ef712020-09-23 19:09:51 +0200548config EXAMPLES
549 bool "Compile API examples"
550 depends on !SANDBOX
551 default y if ARCH_QEMU
552 help
553 U-Boot provides an API for standalone applications. Examples are
554 provided in directory examples/.
555
Masahiro Yamada40ad4c42014-11-26 18:42:31 +0900556endmenu # General setup
557
Emmanuel Vadot4db98d32017-01-31 12:17:04 +0100558source "api/Kconfig"
559
Simon Glass19a91f22021-10-14 12:47:54 -0600560source "boot/Kconfig"
561
Masahiro Yamadaed363232014-09-16 16:32:58 +0900562source "common/Kconfig"
563
Simon Glass72a8cf82016-01-17 20:53:51 -0700564source "cmd/Kconfig"
565
Patrick Delaunaye274ef62017-01-27 11:00:35 +0100566source "disk/Kconfig"
567
Masahiro Yamada783e6a72014-09-22 19:59:05 +0900568source "dts/Kconfig"
569
Simon Glass0649cd02017-08-03 12:21:49 -0600570source "env/Kconfig"
571
Masahiro Yamadaed363232014-09-16 16:32:58 +0900572source "net/Kconfig"
573
574source "drivers/Kconfig"
575
576source "fs/Kconfig"
577
578source "lib/Kconfig"
Simon Glass19679822015-02-05 21:41:37 -0700579
580source "test/Kconfig"
Simon Glass1fa057b2020-09-10 20:21:27 -0600581
582source "tools/Kconfig"