Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 1 | # |
| 2 | # For a description of the syntax of this configuration file, |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 3 | # see the file Documentation/kbuild/kconfig-language.txt in the |
| 4 | # Linux kernel source tree. |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 5 | # |
Tom Rini | 40f1170 | 2020-03-11 18:11:17 -0400 | [diff] [blame] | 6 | mainmenu "U-Boot $(UBOOTVERSION) Configuration" |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 7 | |
Tom Rini | 9998594 | 2020-05-18 14:48:00 -0400 | [diff] [blame] | 8 | comment "Compiler: $(CC_VERSION_TEXT)" |
| 9 | |
Tom Rini | 8f1be32 | 2020-05-14 08:30:01 -0400 | [diff] [blame] | 10 | source "scripts/Kconfig.include" |
| 11 | |
Simon Glass | 157c395 | 2015-02-24 22:26:19 +0900 | [diff] [blame] | 12 | # Allow defaults in arch-specific code to override any given here |
| 13 | source "arch/Kconfig" |
| 14 | |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 15 | menu "General setup" |
| 16 | |
Heinrich Schuchardt | 556f86d | 2017-10-19 23:49:19 +0200 | [diff] [blame] | 17 | config BROKEN |
| 18 | bool |
| 19 | help |
| 20 | This option cannot be enabled. It is used as dependency |
| 21 | for broken and incomplete features. |
| 22 | |
Tom Rini | e9518cf | 2019-05-29 17:01:29 -0400 | [diff] [blame] | 23 | config 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 Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 30 | config LOCALVERSION |
| 31 | string "Local version - append to U-Boot release" |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 32 | help |
| 33 | Append an extra string to the end of your U-Boot version. |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 34 | This will show up in your boot log, for example. |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 35 | 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 | |
| 40 | config LOCALVERSION_AUTO |
| 41 | bool "Automatically append version information to the version string" |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 42 | default y |
| 43 | help |
| 44 | This will try to automatically determine if the current tree is a |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 45 | release tree by looking for Git tags that belong to the current |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 46 | top of tree revision. |
| 47 | |
| 48 | A string of the format -gxxxxxxxx will be added to the localversion |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 49 | if a Git-based tree is found. The string generated by this will be |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 50 | 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 Rini | 5080063 | 2021-06-17 18:07:25 -0400 | [diff] [blame] | 60 | config CC_IS_GCC |
| 61 | def_bool $(success,$(CC) --version | head -n 1 | grep -q gcc) |
| 62 | |
| 63 | config 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 | |
| 68 | config CC_IS_CLANG |
| 69 | def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) |
| 70 | |
| 71 | config CLANG_VERSION |
| 72 | int |
| 73 | default $(shell,$(srctree)/scripts/clang-version.sh $(CC)) |
| 74 | |
Sean Anderson | 9964cae | 2022-02-22 12:19:24 -0500 | [diff] [blame] | 75 | choice |
| 76 | prompt "Optimization level" |
| 77 | default CC_OPTIMIZE_FOR_SIZE |
| 78 | |
Masahiro Yamada | 8240a4b | 2014-08-22 19:42:29 +0900 | [diff] [blame] | 79 | config CC_OPTIMIZE_FOR_SIZE |
| 80 | bool "Optimize for size" |
Masahiro Yamada | 8240a4b | 2014-08-22 19:42:29 +0900 | [diff] [blame] | 81 | help |
Sean Anderson | 9964cae | 2022-02-22 12:19:24 -0500 | [diff] [blame] | 82 | Enabling this option will pass "-Os" to gcc, resulting in a smaller |
| 83 | U-Boot image. |
Masahiro Yamada | 8240a4b | 2014-08-22 19:42:29 +0900 | [diff] [blame] | 84 | |
| 85 | This option is enabled by default for U-Boot. |
| 86 | |
Sean Anderson | 9964cae | 2022-02-22 12:19:24 -0500 | [diff] [blame] | 87 | config 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 Anderson | c73952c | 2022-02-22 12:19:25 -0500 | [diff] [blame] | 93 | config 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 Anderson | 9964cae | 2022-02-22 12:19:24 -0500 | [diff] [blame] | 99 | endchoice |
| 100 | |
Tom Rini | 5cbb29e | 2020-05-14 08:30:07 -0400 | [diff] [blame] | 101 | config OPTIMIZE_INLINING |
Tom Rini | ea55ba0 | 2020-05-14 08:30:08 -0400 | [diff] [blame] | 102 | bool "Allow compiler to uninline functions marked 'inline' in full U-Boot" |
Tom Rini | ea55ba0 | 2020-05-14 08:30:08 -0400 | [diff] [blame] | 103 | 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 | |
| 109 | config SPL_OPTIMIZE_INLINING |
| 110 | bool "Allow compiler to uninline functions marked 'inline' in SPL" |
| 111 | depends on SPL |
Tom Rini | ea55ba0 | 2020-05-14 08:30:08 -0400 | [diff] [blame] | 112 | 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 BehĂșn | d72a3b7 | 2021-05-20 13:24:03 +0200 | [diff] [blame] | 118 | config ARCH_SUPPORTS_LTO |
| 119 | bool |
| 120 | |
| 121 | config LTO |
| 122 | bool "Enable Link Time Optimizations" |
| 123 | depends on ARCH_SUPPORTS_LTO |
Marek BehĂșn | d72a3b7 | 2021-05-20 13:24:03 +0200 | [diff] [blame] | 124 | 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 Rini | ea55ba0 | 2020-05-14 08:30:08 -0400 | [diff] [blame] | 141 | config TPL_OPTIMIZE_INLINING |
| 142 | bool "Allow compiler to uninline functions marked 'inline' in TPL" |
| 143 | depends on TPL |
Tom Rini | 5cbb29e | 2020-05-14 08:30:07 -0400 | [diff] [blame] | 144 | 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 Gmeiner | 0e7c071 | 2018-04-09 17:11:45 +0200 | [diff] [blame] | 150 | config 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 Rini | 7c34ae4 | 2020-05-14 08:30:06 -0400 | [diff] [blame] | 157 | config CC_HAS_ASM_INLINE |
| 158 | def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null) |
| 159 | |
Peng Fan | f08fa49 | 2020-08-06 12:42:45 +0300 | [diff] [blame] | 160 | config 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 Goede | f99c5cb | 2016-06-20 23:16:28 +0200 | [diff] [blame] | 178 | config DISTRO_DEFAULTS |
| 179 | bool "Select defaults suitable for booting general purpose Linux distributions" |
Michal Simek | 7e7ba3b | 2018-07-23 15:55:15 +0200 | [diff] [blame] | 180 | select AUTO_COMPLETE |
| 181 | select CMDLINE_EDITING |
Masahiro Yamada | 04cf155 | 2016-08-12 08:31:16 -0400 | [diff] [blame] | 182 | select CMD_BOOTI if ARM64 |
Michal Simek | 7e7ba3b | 2018-07-23 15:55:15 +0200 | [diff] [blame] | 183 | select CMD_BOOTZ if ARM && !ARM64 |
Joe Hershberger | 1c657e9 | 2018-04-13 15:26:31 -0500 | [diff] [blame] | 184 | select CMD_DHCP if CMD_NET |
Masahiro Yamada | e4ce795 | 2018-04-25 19:16:48 +0900 | [diff] [blame] | 185 | select CMD_ENV_EXISTS |
Hans de Goede | f99c5cb | 2016-06-20 23:16:28 +0200 | [diff] [blame] | 186 | select CMD_EXT2 |
| 187 | select CMD_EXT4 |
| 188 | select CMD_FAT |
| 189 | select CMD_FS_GENERIC |
Tom Rini | 732aa4a | 2018-02-10 16:54:38 -0500 | [diff] [blame] | 190 | select CMD_PART if PARTITIONS |
Michal Simek | 7e7ba3b | 2018-07-23 15:55:15 +0200 | [diff] [blame] | 191 | select CMD_PING if CMD_NET |
| 192 | select CMD_PXE if NET |
Patrice Chotard | 7b81c05 | 2019-11-25 09:07:38 +0100 | [diff] [blame] | 193 | select CMD_SYSBOOT |
Michal Simek | 7e7ba3b | 2018-07-23 15:55:15 +0200 | [diff] [blame] | 194 | select ENV_VARS_UBOOT_CONFIG |
Hans de Goede | f99c5cb | 2016-06-20 23:16:28 +0200 | [diff] [blame] | 195 | select HUSH_PARSER |
Adam Ford | 58dbf86 | 2018-02-06 07:58:59 -0600 | [diff] [blame] | 196 | select SUPPORT_RAW_INITRD |
Michal Simek | 7e7ba3b | 2018-07-23 15:55:15 +0200 | [diff] [blame] | 197 | select SYS_LONGHELP |
| 198 | imply CMD_MII if NET |
Alexander Graf | a90e582 | 2018-10-18 09:33:03 +0200 | [diff] [blame] | 199 | imply USB_STORAGE |
Michal Simek | 7e7ba3b | 2018-07-23 15:55:15 +0200 | [diff] [blame] | 200 | imply USE_BOOTCOMMAND |
Hans de Goede | f99c5cb | 2016-06-20 23:16:28 +0200 | [diff] [blame] | 201 | 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 Ford | 58dbf86 | 2018-02-06 07:58:59 -0600 | [diff] [blame] | 205 | config 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 Fried | 9982661 | 2018-08-14 01:00:04 +0300 | [diff] [blame] | 218 | config NR_DRAM_BANKS |
| 219 | int "Number of DRAM banks" |
Amit Singh Tomar | 82704fa | 2020-04-19 19:28:34 +0530 | [diff] [blame] | 220 | default 1 if ARCH_SUNXI || ARCH_OWL |
Ramon Fried | 9982661 | 2018-08-14 01:00:04 +0300 | [diff] [blame] | 221 | default 4 |
| 222 | help |
| 223 | This defines the number of DRAM banks. |
| 224 | |
Derald D. Woods | eb730bd | 2018-01-22 17:17:10 -0600 | [diff] [blame] | 225 | config 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 | |
| 231 | config 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 Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 237 | config SYS_MALLOC_F |
| 238 | bool "Enable malloc() pool before relocation" |
Masahiro Yamada | c698824 | 2015-03-19 19:42:55 +0900 | [diff] [blame] | 239 | default y if DM |
Simon Glass | b24fdd4 | 2018-12-03 04:37:17 -0700 | [diff] [blame] | 240 | |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 241 | help |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 242 | Before relocation, memory is very limited on many platforms. Still, |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 243 | 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 | |
| 247 | config SYS_MALLOC_F_LEN |
| 248 | hex "Size of malloc() pool before relocation" |
| 249 | depends on SYS_MALLOC_F |
Sjoerd Simons | 4e335c3 | 2018-04-12 18:09:58 +0200 | [diff] [blame] | 250 | default 0x1000 if AM33XX |
Heinrich Schuchardt | ea14390 | 2022-04-05 16:47:15 +0200 | [diff] [blame] | 251 | default 0x4000 if SANDBOX || RISCV |
Fabio Estevam | 526a736 | 2022-03-26 11:47:40 -0300 | [diff] [blame] | 252 | default 0x2000 if (ARCH_MX7 || ARCH_MX7ULP || ARCH_MX6 || ARCH_MX5 || \ |
Peng Fan | a83344b | 2022-04-11 17:07:04 +0800 | [diff] [blame] | 253 | ARCH_QEMU || ARCH_SUNXI || ARCH_OWL || IMX8MQ) |
| 254 | default 0x10000 if (ARCH_IMX8 || (ARCH_IMX8M && !IMX8MQ) || \ |
| 255 | ARCH_LS1012A || ARCH_LS1021A || ARCH_LS1043A || \ |
| 256 | ARCH_LS1046A) |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 257 | default 0x400 |
| 258 | help |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 259 | Before relocation, memory is very limited on many platforms. Still, |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 260 | 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 | |
Siva Durga Prasad Paladugu | 9adb526 | 2018-07-20 15:11:38 +0530 | [diff] [blame] | 264 | config SYS_MALLOC_LEN |
| 265 | hex "Define memory for Dynamic allocation" |
Tom Rini | e065fb1 | 2021-08-28 21:34:49 -0400 | [diff] [blame] | 266 | default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON |
Tom Rini | e065fb1 | 2021-08-28 21:34:49 -0400 | [diff] [blame] | 267 | default 0x200000 if ARCH_BMIPS || X86 |
Icenowy Zheng | 711fab3 | 2022-01-29 10:23:09 -0500 | [diff] [blame] | 268 | default 0x120000 if MACH_SUNIV |
| 269 | default 0x220000 if MACH_SUN8I_V3S |
| 270 | default 0x4020000 if ARCH_SUNXI |
Tom Rini | e065fb1 | 2021-08-28 21:34:49 -0400 | [diff] [blame] | 271 | default 0x400000 |
Siva Durga Prasad Paladugu | 9adb526 | 2018-07-20 15:11:38 +0530 | [diff] [blame] | 272 | help |
| 273 | This defines memory to be allocated for Dynamic allocation |
| 274 | TODO: Use for other architectures |
| 275 | |
Andy Yan | 1fa20e4d | 2017-07-24 17:43:34 +0800 | [diff] [blame] | 276 | config SPL_SYS_MALLOC_F_LEN |
Simon Glass | bbfdaf3 | 2021-01-21 13:57:06 -0700 | [diff] [blame] | 277 | hex "Size of malloc() pool in SPL" |
Adam Ford | 43a1e2d | 2019-08-13 14:32:30 -0500 | [diff] [blame] | 278 | depends on SYS_MALLOC_F && SPL |
Marek Vasut | e39fa7d | 2018-10-03 12:44:13 +0200 | [diff] [blame] | 279 | default 0x2800 if RCAR_GEN3 |
Michal Simek | 0601c1b | 2018-07-24 14:47:43 +0200 | [diff] [blame] | 280 | default SYS_MALLOC_F_LEN |
| 281 | help |
Simon Glass | bbfdaf3 | 2021-01-21 13:57:06 -0700 | [diff] [blame] | 282 | In SPL memory is very limited on many platforms. Still, |
Michal Simek | 0601c1b | 2018-07-24 14:47:43 +0200 | [diff] [blame] | 283 | we can provide a small malloc() pool if needed. Driver model in |
| 284 | particular needs this to operate, so that it can allocate the |
| 285 | initial serial device and any others that are needed. |
Philipp Tomsich | 1013935 | 2017-07-28 11:06:03 +0200 | [diff] [blame] | 286 | |
Simon Glass | bbfdaf3 | 2021-01-21 13:57:06 -0700 | [diff] [blame] | 287 | It is possible to enable CONFIG_SYS_SPL_MALLOC_START to start a new |
| 288 | malloc() region in SDRAM once it is inited. |
| 289 | |
Philipp Tomsich | 1013935 | 2017-07-28 11:06:03 +0200 | [diff] [blame] | 290 | config TPL_SYS_MALLOC_F_LEN |
Simon Glass | bbfdaf3 | 2021-01-21 13:57:06 -0700 | [diff] [blame] | 291 | hex "Size of malloc() pool in TPL" |
Adam Ford | 43a1e2d | 2019-08-13 14:32:30 -0500 | [diff] [blame] | 292 | depends on SYS_MALLOC_F && TPL |
Simon Glass | bbfdaf3 | 2021-01-21 13:57:06 -0700 | [diff] [blame] | 293 | default SPL_SYS_MALLOC_F_LEN |
Michal Simek | 0601c1b | 2018-07-24 14:47:43 +0200 | [diff] [blame] | 294 | help |
Simon Glass | bbfdaf3 | 2021-01-21 13:57:06 -0700 | [diff] [blame] | 295 | In TPL memory is very limited on many platforms. Still, |
Michal Simek | 0601c1b | 2018-07-24 14:47:43 +0200 | [diff] [blame] | 296 | we can provide a small malloc() pool if needed. Driver model in |
| 297 | particular needs this to operate, so that it can allocate the |
| 298 | initial serial device and any others that are needed. |
Andy Yan | 1fa20e4d | 2017-07-24 17:43:34 +0800 | [diff] [blame] | 299 | |
Sean Anderson | 3b00484 | 2022-03-23 14:04:48 -0400 | [diff] [blame] | 300 | config VALGRIND |
| 301 | bool "Inform valgrind about memory allocations" |
| 302 | help |
| 303 | Valgrind is an instrumentation framework for building dynamic analysis |
| 304 | tools. In particular, it may be used to detect memory management bugs |
| 305 | in U-Boot. It relies on knowing when heap blocks are allocated in |
| 306 | order to give accurate results. This happens automatically for |
| 307 | standard allocator functions provided by the host OS. However, this |
| 308 | doesn't automatically happen for U-Boot's malloc implementation. |
| 309 | |
| 310 | Enable this option to annotate U-Boot's malloc implementation so that |
| 311 | it can be handled accurately by Valgrind. If you aren't planning on |
| 312 | using valgrind to debug U-Boot, say 'n'. |
| 313 | |
Tom Rini | a50d5b5 | 2014-11-14 09:34:29 +0100 | [diff] [blame] | 314 | menuconfig EXPERT |
Przemyslaw Marczak | 8843678 | 2015-03-04 14:01:24 +0100 | [diff] [blame] | 315 | bool "Configure standard U-Boot features (expert users)" |
| 316 | default y |
| 317 | help |
| 318 | This option allows certain base U-Boot options and settings |
| 319 | to be disabled or tweaked. This is for specialized |
| 320 | environments which can tolerate a "non-standard" U-Boot. |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 321 | Use this only if you really know what you are doing. |
Przemyslaw Marczak | 8843678 | 2015-03-04 14:01:24 +0100 | [diff] [blame] | 322 | |
| 323 | if EXPERT |
| 324 | config SYS_MALLOC_CLEAR_ON_INIT |
| 325 | bool "Init with zeros the memory reserved for malloc (slow)" |
| 326 | default y |
| 327 | help |
| 328 | This setting is enabled by default. The reserved malloc |
| 329 | memory is initialized with zeros, so first malloc calls |
| 330 | will return the pointer to the zeroed memory. But this |
| 331 | slows the boot time. |
Tom Rini | a50d5b5 | 2014-11-14 09:34:29 +0100 | [diff] [blame] | 332 | |
Przemyslaw Marczak | 8843678 | 2015-03-04 14:01:24 +0100 | [diff] [blame] | 333 | It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN |
| 334 | value, has more than few MiB, e.g. when uses bzip2 or bmp logo. |
| 335 | Then the boot time can be significantly reduced. |
| 336 | Warning: |
| 337 | When disabling this, please check if malloc calls, maybe |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 338 | should be replaced by calloc - if one expects zeroed memory. |
Simon Glass | 86a6449 | 2016-06-30 10:52:20 -0600 | [diff] [blame] | 339 | |
Marek Bykowski | b4032a7 | 2020-04-29 18:23:07 +0200 | [diff] [blame] | 340 | config SYS_MALLOC_DEFAULT_TO_INIT |
| 341 | bool "Default malloc to init while reserving the memory for it" |
Marek Bykowski | b4032a7 | 2020-04-29 18:23:07 +0200 | [diff] [blame] | 342 | help |
| 343 | It may happen that one needs to move the dynamic allocation |
| 344 | from one to another memory range, eg. when moving the malloc |
| 345 | from the limited static to a potentially large dynamic (DDR) |
| 346 | memory. |
| 347 | |
| 348 | If so then on top of setting the updated memory aside one |
| 349 | needs to bring the malloc init. |
| 350 | |
| 351 | If such a scenario is sought choose yes. |
| 352 | |
Simon Glass | 86a6449 | 2016-06-30 10:52:20 -0600 | [diff] [blame] | 353 | config TOOLS_DEBUG |
| 354 | bool "Enable debug information for tools" |
| 355 | help |
| 356 | Enable generation of debug information for tools such as mkimage. |
| 357 | This can be used for debugging purposes. With debug information |
| 358 | it is possible to set breakpoints on particular lines, single-step |
| 359 | debug through the source code, etc. |
| 360 | |
Robert P. J. Day | e4829f3 | 2017-01-02 16:32:13 -0500 | [diff] [blame] | 361 | endif # EXPERT |
Masahiro Yamada | 653e9fe | 2016-07-25 19:56:03 +0900 | [diff] [blame] | 362 | |
| 363 | config PHYS_64BIT |
| 364 | bool "64bit physical address support" |
| 365 | help |
| 366 | Say Y here to support 64bit physical memory address. |
| 367 | This can be used not only for 64bit SoCs, but also for |
Chris Packham | 2b52a24 | 2019-01-13 22:13:19 +1300 | [diff] [blame] | 368 | large physical address extension on 32bit SoCs. |
Masahiro Yamada | 653e9fe | 2016-07-25 19:56:03 +0900 | [diff] [blame] | 369 | |
Simon Glass | f69c009 | 2020-07-19 13:55:52 -0600 | [diff] [blame] | 370 | config HAS_ROM |
| 371 | bool |
| 372 | select BINMAN |
| 373 | help |
| 374 | Enables building of a u-boot.rom target. This collects U-Boot and |
| 375 | any necessary binary blobs. |
| 376 | |
Stefan Roese | e915cbc | 2019-04-03 15:24:50 +0200 | [diff] [blame] | 377 | config SPL_IMAGE |
| 378 | string "SPL image used in the combined SPL+U-Boot image" |
| 379 | default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT |
| 380 | default "spl/u-boot-spl.bin" |
Adam Ford | 43a1e2d | 2019-08-13 14:32:30 -0500 | [diff] [blame] | 381 | depends on SPL |
Stefan Roese | e915cbc | 2019-04-03 15:24:50 +0200 | [diff] [blame] | 382 | help |
| 383 | Select the SPL build target that shall be generated by the SPL |
| 384 | build process (default spl/u-boot-spl.bin). This image will be |
| 385 | used to generate a combined image with SPL and main U-Boot |
| 386 | proper as one single image. |
| 387 | |
Alper Nebi Yasak | 2beb0f4 | 2022-01-29 18:25:30 +0300 | [diff] [blame] | 388 | config REMAKE_ELF |
| 389 | bool "Recreate an ELF image from raw U-Boot binary" |
| 390 | help |
| 391 | Enable this to recreate an ELF image (u-boot.elf) from the raw |
| 392 | U-Boot binary (u-boot.bin), which may already have been statically |
| 393 | relocated and may already have a device-tree appended to it. |
| 394 | |
Jagan Teki | aee9ed3 | 2019-01-18 12:52:49 +0530 | [diff] [blame] | 395 | config BUILD_TARGET |
| 396 | string "Build target special images" |
Dalon Westergreen | 8fb280c | 2019-03-20 13:15:21 -0700 | [diff] [blame] | 397 | default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10 |
| 398 | default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5 |
Baruch Siach | b6a4fc0 | 2019-02-07 13:21:16 +0200 | [diff] [blame] | 399 | default "u-boot-spl.kwb" if ARCH_MVEBU && SPL |
Jagan Teki | aee9ed3 | 2019-01-18 12:52:49 +0530 | [diff] [blame] | 400 | default "u-boot-elf.srec" if RCAR_GEN3 |
Simon Glass | 6a50cd1 | 2020-07-19 13:56:12 -0600 | [diff] [blame] | 401 | default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \ |
Michal Simek | a7178b7 | 2019-10-02 15:55:57 +0200 | [diff] [blame] | 402 | ARCH_SUNXI || RISCV || ARCH_ZYNQMP) |
Trevor Woerner | bb7ab07 | 2020-05-06 08:02:40 -0400 | [diff] [blame] | 403 | default "u-boot.kwb" if ARCH_KIRKWOOD |
Stefan Roese | e915cbc | 2019-04-03 15:24:50 +0200 | [diff] [blame] | 404 | default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT |
Stefan Roese | 98b2f41 | 2019-09-20 18:09:10 +0200 | [diff] [blame] | 405 | default "u-boot-with-spl.imx" if ARCH_MX6 && SPL |
Jagan Teki | aee9ed3 | 2019-01-18 12:52:49 +0530 | [diff] [blame] | 406 | help |
| 407 | Some SoCs need special image types (e.g. U-Boot binary |
| 408 | with a special header) as build targets. By defining |
| 409 | CONFIG_BUILD_TARGET in the SoC / board header, this |
| 410 | special image will be automatically built upon calling |
| 411 | make / buildman. |
| 412 | |
Tom Rini | 876df34 | 2022-03-30 18:07:11 -0400 | [diff] [blame] | 413 | config HAS_BOARD_SIZE_LIMIT |
| 414 | bool "Define a maximum size for the U-Boot image" |
| 415 | default y if RCAR_GEN3 |
| 416 | help |
| 417 | In some cases, we need to enforce a hard limit on how big the U-Boot |
| 418 | image itself can be. |
| 419 | |
| 420 | config BOARD_SIZE_LIMIT |
| 421 | int "Maximum size of the U-Boot image in bytes" |
| 422 | default 1048576 if RCAR_GEN3 |
| 423 | depends on HAS_BOARD_SIZE_LIMIT |
| 424 | help |
| 425 | Maximum size of the U-Boot image. When defined, the build system |
| 426 | checks that the actual size does not exceed it. This does not |
| 427 | include SPL nor TPL, on platforms that use that functionality, they |
| 428 | have a separate option to restict size. |
| 429 | |
Tom Rini | e478f70 | 2019-06-02 08:57:32 -0400 | [diff] [blame] | 430 | config SYS_CUSTOM_LDSCRIPT |
| 431 | bool "Use a custom location for the U-Boot linker script" |
| 432 | help |
| 433 | Normally when linking U-Boot we will look in the board directory, |
| 434 | the CPU directory and finally the "cpu" directory of the architecture |
| 435 | for the ile "u-boot.lds" and use that as our linker. However, in |
| 436 | some cases we need to provide a different linker script. To do so, |
| 437 | enable this option and then provide the location under |
| 438 | CONFIG_SYS_LDSCRIPT. |
| 439 | |
| 440 | config SYS_LDSCRIPT |
| 441 | depends on SYS_CUSTOM_LDSCRIPT |
| 442 | string "Custom ldscript location" |
| 443 | help |
| 444 | Path within the source tree to the linker script to use for the |
| 445 | main U-Boot binary. |
| 446 | |
Tom Rini | 0997ee0 | 2021-08-23 10:25:31 -0400 | [diff] [blame] | 447 | config SYS_LOAD_ADDR |
| 448 | hex "Address in memory to use by default" |
| 449 | default 0x01000000 if ARCH_SOCFPGA |
| 450 | default 0x02000000 if PPC || X86 |
Icenowy Zheng | 711fab3 | 2022-01-29 10:23:09 -0500 | [diff] [blame] | 451 | default 0x81000000 if MACH_SUNIV |
Tom Rini | 0997ee0 | 2021-08-23 10:25:31 -0400 | [diff] [blame] | 452 | default 0x22000000 if MACH_SUN9I |
Icenowy Zheng | 711fab3 | 2022-01-29 10:23:09 -0500 | [diff] [blame] | 453 | default 0x42000000 if ARCH_SUNXI |
Tom Rini | 0997ee0 | 2021-08-23 10:25:31 -0400 | [diff] [blame] | 454 | default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3 |
| 455 | default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL) |
| 456 | default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL) |
| 457 | default 0x80800000 if ARCH_MX7 |
| 458 | default 0x90000000 if FSL_LSCH2 || FSL_LSCH3 |
| 459 | help |
| 460 | Address in memory to use as the default safe load address. |
| 461 | |
Simon Goldschmidt | 9c05511 | 2019-10-22 21:29:46 +0200 | [diff] [blame] | 462 | config ERR_PTR_OFFSET |
| 463 | hex |
| 464 | default 0x0 |
| 465 | help |
| 466 | Some U-Boot pointers have redundant information, so we can use a |
| 467 | scheme where we can return either an error code or a pointer with the |
| 468 | same return value. The default implementation just casts the pointer |
| 469 | to a number, however, this may fail on platforms where the end of the |
| 470 | address range is used for valid pointers (e.g. 0xffffff00 is a valid |
| 471 | heap pointer in socfpga SPL). |
| 472 | For such platforms, this value provides an upper range of those error |
| 473 | pointer values - up to 'MAX_ERRNO' bytes below this value must be |
| 474 | unused/invalid addresses. |
| 475 | |
Michal Simek | 5d458a1 | 2020-03-30 13:58:59 +0200 | [diff] [blame] | 476 | config PLATFORM_ELFENTRY |
| 477 | string |
| 478 | default "__start" if MIPS |
| 479 | default "_start" |
| 480 | |
Heinrich Schuchardt | c6dcbe1 | 2020-07-29 12:37:35 +0200 | [diff] [blame] | 481 | config STACK_SIZE |
| 482 | hex "Define max stack size that can be used by U-Boot" |
| 483 | default 0x4000000 if ARCH_VERSAL || ARCH_ZYNQMP |
| 484 | default 0x200000 if MICROBLAZE |
| 485 | default 0x1000000 |
| 486 | help |
| 487 | Define Max stack size that can be used by U-Boot. This value is used |
| 488 | by the UEFI sub-system. On some boards initrd_high is calculated as |
| 489 | base stack pointer minus this stack size. |
| 490 | |
Ovidiu Panait | 2cdfed2 | 2020-07-24 14:12:09 +0300 | [diff] [blame] | 491 | config SYS_HAS_SRAM |
| 492 | bool |
| 493 | default y if TARGET_PIC32MZDASK |
| 494 | default y if TARGET_DEVKIT8000 |
| 495 | default y if TARGET_TRICORDER |
Ovidiu Panait | 2cdfed2 | 2020-07-24 14:12:09 +0300 | [diff] [blame] | 496 | help |
| 497 | Enable this to allow support for the on board SRAM. |
| 498 | SRAM base address is controlled by CONFIG_SYS_SRAM_BASE. |
| 499 | SRAM size is controlled by CONFIG_SYS_SRAM_SIZE. |
| 500 | |
Ovidiu Panait | 6274921 | 2020-07-24 14:12:10 +0300 | [diff] [blame] | 501 | config SYS_SRAM_BASE |
| 502 | hex |
| 503 | default 0x80000000 if TARGET_PIC32MZDASK |
Ovidiu Panait | 0a2ef26 | 2020-07-24 14:12:12 +0300 | [diff] [blame] | 504 | default 0x40200000 if TARGET_DEVKIT8000 |
| 505 | default 0x40200000 if TARGET_TRICORDER |
Ovidiu Panait | 6274921 | 2020-07-24 14:12:10 +0300 | [diff] [blame] | 506 | default 0x0 |
| 507 | |
Ovidiu Panait | cb22996 | 2020-07-24 14:12:11 +0300 | [diff] [blame] | 508 | config SYS_SRAM_SIZE |
| 509 | hex |
| 510 | default 0x00080000 if TARGET_PIC32MZDASK |
| 511 | default 0x10000 if TARGET_DEVKIT8000 |
| 512 | default 0x10000 if TARGET_TRICORDER |
| 513 | default 0x0 |
| 514 | |
Ashok Reddy Soma | 1e6f996 | 2022-01-17 10:16:50 +0100 | [diff] [blame] | 515 | config MP |
| 516 | bool "Support for multiprocessor" |
| 517 | help |
| 518 | This provides an option to bringup different processors |
| 519 | in multiprocessor cases. |
| 520 | |
Heinrich Schuchardt | 1e8cbc7 | 2020-09-23 19:09:51 +0200 | [diff] [blame] | 521 | config EXAMPLES |
| 522 | bool "Compile API examples" |
| 523 | depends on !SANDBOX |
| 524 | default y if ARCH_QEMU |
| 525 | help |
| 526 | U-Boot provides an API for standalone applications. Examples are |
| 527 | provided in directory examples/. |
| 528 | |
Masahiro Yamada | 9eeddf2 | 2014-11-26 18:42:31 +0900 | [diff] [blame] | 529 | endmenu # General setup |
| 530 | |
Emmanuel Vadot | aa02099 | 2017-01-31 12:17:04 +0100 | [diff] [blame] | 531 | source "api/Kconfig" |
| 532 | |
Simon Glass | 91944df | 2021-10-14 12:47:54 -0600 | [diff] [blame] | 533 | source "boot/Kconfig" |
| 534 | |
Masahiro Yamada | f3e12b7 | 2014-09-16 16:32:58 +0900 | [diff] [blame] | 535 | source "common/Kconfig" |
| 536 | |
Simon Glass | 29499a0 | 2016-01-17 20:53:51 -0700 | [diff] [blame] | 537 | source "cmd/Kconfig" |
| 538 | |
Patrick Delaunay | dc28060 | 2017-01-27 11:00:35 +0100 | [diff] [blame] | 539 | source "disk/Kconfig" |
| 540 | |
Masahiro Yamada | 9fadbc8 | 2014-09-22 19:59:05 +0900 | [diff] [blame] | 541 | source "dts/Kconfig" |
| 542 | |
Simon Glass | 547cb40 | 2017-08-03 12:21:49 -0600 | [diff] [blame] | 543 | source "env/Kconfig" |
| 544 | |
Masahiro Yamada | f3e12b7 | 2014-09-16 16:32:58 +0900 | [diff] [blame] | 545 | source "net/Kconfig" |
| 546 | |
| 547 | source "drivers/Kconfig" |
| 548 | |
| 549 | source "fs/Kconfig" |
| 550 | |
| 551 | source "lib/Kconfig" |
Simon Glass | 9dd430d | 2015-02-05 21:41:37 -0700 | [diff] [blame] | 552 | |
| 553 | source "test/Kconfig" |
Simon Glass | 31b24b4 | 2020-09-10 20:21:27 -0600 | [diff] [blame] | 554 | |
| 555 | source "tools/Kconfig" |