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 | # |
| 6 | mainmenu "U-Boot $UBOOTVERSION Configuration" |
| 7 | |
| 8 | config UBOOTVERSION |
| 9 | string |
| 10 | option env="UBOOTVERSION" |
| 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 | |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 17 | config LOCALVERSION |
| 18 | string "Local version - append to U-Boot release" |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 19 | help |
| 20 | 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] | 21 | This will show up in your boot log, for example. |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 22 | The string you set here will be appended after the contents of |
| 23 | any files with a filename matching localversion* in your |
| 24 | object and source tree, in that order. Your total string can |
| 25 | be a maximum of 64 characters. |
| 26 | |
| 27 | config LOCALVERSION_AUTO |
| 28 | bool "Automatically append version information to the version string" |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 29 | default y |
| 30 | help |
| 31 | 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] | 32 | release tree by looking for Git tags that belong to the current |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 33 | top of tree revision. |
| 34 | |
| 35 | 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] | 36 | 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] | 37 | appended after any matching localversion* files, and after the value |
| 38 | set in CONFIG_LOCALVERSION. |
| 39 | |
| 40 | (The actual string used here is the first eight characters produced |
| 41 | by running the command: |
| 42 | |
| 43 | $ git rev-parse --verify HEAD |
| 44 | |
| 45 | which is done within the script "scripts/setlocalversion".) |
| 46 | |
Masahiro Yamada | 8240a4b | 2014-08-22 19:42:29 +0900 | [diff] [blame] | 47 | config CC_OPTIMIZE_FOR_SIZE |
| 48 | bool "Optimize for size" |
Masahiro Yamada | 8240a4b | 2014-08-22 19:42:29 +0900 | [diff] [blame] | 49 | default y |
| 50 | help |
| 51 | Enabling this option will pass "-Os" instead of "-O2" to gcc |
| 52 | resulting in a smaller U-Boot image. |
| 53 | |
| 54 | This option is enabled by default for U-Boot. |
| 55 | |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 56 | config SYS_MALLOC_F |
| 57 | bool "Enable malloc() pool before relocation" |
Masahiro Yamada | c698824 | 2015-03-19 19:42:55 +0900 | [diff] [blame] | 58 | default y if DM |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 59 | help |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 60 | Before relocation, memory is very limited on many platforms. Still, |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 61 | we can provide a small malloc() pool if needed. Driver model in |
| 62 | particular needs this to operate, so that it can allocate the |
| 63 | initial serial device and any others that are needed. |
| 64 | |
| 65 | config SYS_MALLOC_F_LEN |
| 66 | hex "Size of malloc() pool before relocation" |
| 67 | depends on SYS_MALLOC_F |
| 68 | default 0x400 |
| 69 | help |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 70 | Before relocation, memory is very limited on many platforms. Still, |
Simon Glass | 838723b | 2015-02-11 16:32:59 -0700 | [diff] [blame] | 71 | we can provide a small malloc() pool if needed. Driver model in |
| 72 | particular needs this to operate, so that it can allocate the |
| 73 | initial serial device and any others that are needed. |
| 74 | |
Tom Rini | a50d5b5 | 2014-11-14 09:34:29 +0100 | [diff] [blame] | 75 | menuconfig EXPERT |
Przemyslaw Marczak | 8843678 | 2015-03-04 14:01:24 +0100 | [diff] [blame] | 76 | bool "Configure standard U-Boot features (expert users)" |
| 77 | default y |
| 78 | help |
| 79 | This option allows certain base U-Boot options and settings |
| 80 | to be disabled or tweaked. This is for specialized |
| 81 | environments which can tolerate a "non-standard" U-Boot. |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 82 | Use this only if you really know what you are doing. |
Przemyslaw Marczak | 8843678 | 2015-03-04 14:01:24 +0100 | [diff] [blame] | 83 | |
| 84 | if EXPERT |
| 85 | config SYS_MALLOC_CLEAR_ON_INIT |
| 86 | bool "Init with zeros the memory reserved for malloc (slow)" |
| 87 | default y |
| 88 | help |
| 89 | This setting is enabled by default. The reserved malloc |
| 90 | memory is initialized with zeros, so first malloc calls |
| 91 | will return the pointer to the zeroed memory. But this |
| 92 | slows the boot time. |
Tom Rini | a50d5b5 | 2014-11-14 09:34:29 +0100 | [diff] [blame] | 93 | |
Przemyslaw Marczak | 8843678 | 2015-03-04 14:01:24 +0100 | [diff] [blame] | 94 | It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN |
| 95 | value, has more than few MiB, e.g. when uses bzip2 or bmp logo. |
| 96 | Then the boot time can be significantly reduced. |
| 97 | Warning: |
| 98 | When disabling this, please check if malloc calls, maybe |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 99 | should be replaced by calloc - if one expects zeroed memory. |
Przemyslaw Marczak | 8843678 | 2015-03-04 14:01:24 +0100 | [diff] [blame] | 100 | endif |
Masahiro Yamada | 9eeddf2 | 2014-11-26 18:42:31 +0900 | [diff] [blame] | 101 | endmenu # General setup |
| 102 | |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 103 | menu "Boot images" |
| 104 | |
Masahiro Yamada | 6e0971b | 2014-10-20 17:45:56 +0900 | [diff] [blame] | 105 | config SUPPORT_SPL |
| 106 | bool |
| 107 | |
Masahiro Yamada | f5ebc99 | 2014-10-20 17:45:57 +0900 | [diff] [blame] | 108 | config SUPPORT_TPL |
| 109 | bool |
| 110 | |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 111 | config SPL |
| 112 | bool |
Masahiro Yamada | 6e0971b | 2014-10-20 17:45:56 +0900 | [diff] [blame] | 113 | depends on SUPPORT_SPL |
Masahiro Yamada | cfc2f7d | 2015-02-24 22:26:21 +0900 | [diff] [blame] | 114 | prompt "Enable SPL" |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 115 | help |
| 116 | If you want to build SPL as well as the normal image, say Y. |
| 117 | |
Hans de Goede | 9f9df6f | 2015-09-13 14:45:15 +0200 | [diff] [blame] | 118 | config SPL_SYS_MALLOC_SIMPLE |
| 119 | bool |
| 120 | depends on SPL |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 121 | prompt "Only use malloc_simple functions in the SPL" |
Hans de Goede | 9f9df6f | 2015-09-13 14:45:15 +0200 | [diff] [blame] | 122 | help |
| 123 | Say Y here to only use the *_simple malloc functions from |
Robert P. J. Day | 2f845be | 2016-04-16 05:53:07 -0400 | [diff] [blame] | 124 | malloc_simple.c, rather then using the versions from dlmalloc.c; |
Hans de Goede | 9f9df6f | 2015-09-13 14:45:15 +0200 | [diff] [blame] | 125 | this will make the SPL binary smaller at the cost of more heap |
| 126 | usage as the *_simple malloc functions do not re-use free-ed mem. |
| 127 | |
Simon Glass | d8711af | 2015-03-03 08:03:00 -0700 | [diff] [blame] | 128 | config SPL_STACK_R |
| 129 | depends on SPL |
| 130 | bool "Enable SDRAM location for SPL stack" |
| 131 | help |
| 132 | SPL starts off execution in SRAM and thus typically has only a small |
| 133 | stack available. Since SPL sets up DRAM while in its board_init_f() |
| 134 | function, it is possible for the stack to move there before |
| 135 | board_init_r() is reached. This option enables a special SDRAM |
| 136 | location for the SPL stack. U-Boot SPL switches to this after |
| 137 | board_init_f() completes, and before board_init_r() starts. |
| 138 | |
| 139 | config SPL_STACK_R_ADDR |
| 140 | depends on SPL_STACK_R |
| 141 | hex "SDRAM location for SPL stack" |
| 142 | help |
| 143 | Specify the address in SDRAM for the SPL stack. This will be set up |
| 144 | before board_init_r() is called. |
| 145 | |
Hans de Goede | 8f28038 | 2015-09-13 15:04:17 +0200 | [diff] [blame] | 146 | config SPL_STACK_R_MALLOC_SIMPLE_LEN |
| 147 | depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE |
| 148 | hex "Size of malloc_simple heap after switching to DRAM SPL stack" |
| 149 | default 0x100000 |
| 150 | help |
| 151 | Specify the amount of the stack to use as memory pool for |
| 152 | malloc_simple after switching the stack to DRAM. This may be set |
| 153 | to give board_init_r() a larger heap then the initial heap in |
| 154 | SRAM which is limited to SYS_MALLOC_F_LEN bytes. |
| 155 | |
Simon Glass | 77ec34e | 2015-10-17 19:41:19 -0600 | [diff] [blame] | 156 | config SPL_SEPARATE_BSS |
| 157 | depends on SPL |
| 158 | bool "BSS section is in a different memory region from text" |
| 159 | help |
| 160 | Some platforms need a large BSS region in SPL and can provide this |
| 161 | because RAM is already set up. In this case BSS can be moved to RAM. |
| 162 | This option should then be enabled so that the correct device tree |
| 163 | location is used. Normally we put the device tree at the end of BSS |
| 164 | but with this option enabled, it goes at _image_binary_end. |
| 165 | |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 166 | config TPL |
| 167 | bool |
Masahiro Yamada | f5ebc99 | 2014-10-20 17:45:57 +0900 | [diff] [blame] | 168 | depends on SPL && SUPPORT_TPL |
Masahiro Yamada | cfc2f7d | 2015-02-24 22:26:21 +0900 | [diff] [blame] | 169 | prompt "Enable TPL" |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 170 | help |
| 171 | If you want to build TPL as well as the normal image and SPL, say Y. |
| 172 | |
Masahiro Yamada | a7fa746 | 2014-11-13 19:29:06 +0900 | [diff] [blame] | 173 | config FIT |
| 174 | bool "Support Flattened Image Tree" |
Masahiro Yamada | a7fa746 | 2014-11-13 19:29:06 +0900 | [diff] [blame] | 175 | help |
| 176 | This option allows to boot the new uImage structrure, |
| 177 | Flattened Image Tree. FIT is formally a FDT, which can include |
| 178 | images of various types (kernel, FDT blob, ramdisk, etc.) |
| 179 | in a single blob. To boot this new uImage structure, |
Igor Grinberg | e40176b | 2015-08-26 17:54:45 +0300 | [diff] [blame] | 180 | pass the address of the blob to the "bootm" command. |
Simon Glass | e3ee2fb | 2016-02-22 22:55:43 -0700 | [diff] [blame] | 181 | FIT is very flexible, supporting compression, multiple images, |
| 182 | multiple configurations, verification through hashing and also |
| 183 | verified boot (secure boot using RSA). This option enables that |
| 184 | feature. |
Masahiro Yamada | a7fa746 | 2014-11-13 19:29:06 +0900 | [diff] [blame] | 185 | |
Teddy Reed | 5021e3c | 2016-06-09 19:18:44 -0700 | [diff] [blame^] | 186 | config SPL_FIT |
| 187 | bool "Support Flattened Image Tree within SPL" |
| 188 | depends on FIT |
| 189 | depends on SPL |
| 190 | |
Masahiro Yamada | a7fa746 | 2014-11-13 19:29:06 +0900 | [diff] [blame] | 191 | config FIT_VERBOSE |
| 192 | bool "Display verbose messages on FIT boot" |
| 193 | depends on FIT |
| 194 | |
| 195 | config FIT_SIGNATURE |
Ruchika Gupta | 2c3822e | 2015-01-23 16:01:51 +0530 | [diff] [blame] | 196 | bool "Enable signature verification of FIT uImages" |
Masahiro Yamada | a7fa746 | 2014-11-13 19:29:06 +0900 | [diff] [blame] | 197 | depends on FIT |
Chris Kuethe | b58cf4f | 2015-02-04 19:16:14 -0800 | [diff] [blame] | 198 | depends on DM |
Ruchika Gupta | 2c3822e | 2015-01-23 16:01:51 +0530 | [diff] [blame] | 199 | select RSA |
Masahiro Yamada | a7fa746 | 2014-11-13 19:29:06 +0900 | [diff] [blame] | 200 | help |
| 201 | This option enables signature verification of FIT uImages, |
gaurav rana | ef20159 | 2015-02-20 12:51:46 +0530 | [diff] [blame] | 202 | using a hash signed and verified using RSA. If |
| 203 | CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive |
Simon Glass | e3ee2fb | 2016-02-22 22:55:43 -0700 | [diff] [blame] | 204 | hashing is available using hardware, then then RSA library will use |
| 205 | it. See doc/uImage.FIT/signature.txt for more details. |
| 206 | |
| 207 | WARNING: When relying on signed FIT images with a required signature |
| 208 | check the legacy image format is disabled by default, so that |
| 209 | unsigned images cannot be loaded. If a board needs the legacy image |
| 210 | format support in this case, enable it using |
| 211 | CONFIG_IMAGE_FORMAT_LEGACY. |
| 212 | |
Teddy Reed | 5021e3c | 2016-06-09 19:18:44 -0700 | [diff] [blame^] | 213 | config SPL_FIT_SIGNATURE |
| 214 | bool "Enable signature verification of FIT firmware within SPL" |
| 215 | depends on SPL_FIT |
| 216 | depends on SPL_DM |
| 217 | select SPL_RSA |
| 218 | |
Simon Glass | e3ee2fb | 2016-02-22 22:55:43 -0700 | [diff] [blame] | 219 | config FIT_BEST_MATCH |
| 220 | bool "Select the best match for the kernel device tree" |
| 221 | depends on FIT |
| 222 | help |
| 223 | When no configuration is explicitly selected, default to the |
| 224 | one whose fdt's compatibility field best matches that of |
| 225 | U-Boot itself. A match is considered "best" if it matches the |
| 226 | most specific compatibility entry of U-Boot's fdt's root node. |
| 227 | The order of entries in the configuration's fdt is ignored. |
| 228 | |
| 229 | config FIT_VERBOSE |
| 230 | bool "Show verbose messages when FIT images fails" |
| 231 | depends on FIT |
| 232 | help |
| 233 | Generally a system will have valid FIT images so debug messages |
| 234 | are a waste of code space. If you are debugging your images then |
| 235 | you can enable this option to get more verbose information about |
| 236 | failures. |
| 237 | |
| 238 | config OF_BOARD_SETUP |
| 239 | bool "Set up board-specific details in device tree before boot" |
| 240 | depends on OF_LIBFDT |
| 241 | help |
| 242 | This causes U-Boot to call ft_board_setup() before booting into |
| 243 | the Operating System. This function can set up various |
| 244 | board-specific information in the device tree for use by the OS. |
| 245 | The device tree is then passed to the OS. |
| 246 | |
| 247 | config OF_SYSTEM_SETUP |
| 248 | bool "Set up system-specific details in device tree before boot" |
| 249 | depends on OF_LIBFDT |
| 250 | help |
| 251 | This causes U-Boot to call ft_system_setup() before booting into |
| 252 | the Operating System. This function can set up various |
| 253 | system-specific information in the device tree for use by the OS. |
| 254 | The device tree is then passed to the OS. |
| 255 | |
| 256 | config OF_STDOUT_VIA_ALIAS |
| 257 | bool "Update the device-tree stdout alias from U-Boot" |
| 258 | depends on OF_LIBFDT |
| 259 | help |
| 260 | This uses U-Boot's serial alias from the aliases node to update |
| 261 | the device tree passed to the OS. The "linux,stdout-path" property |
| 262 | in the chosen node is set to point to the correct serial node. |
| 263 | This option currently references CONFIG_CONS_INDEX, which is |
| 264 | incorrect when used with device tree as this option does not |
| 265 | exist / should not be used. |
Masahiro Yamada | a7fa746 | 2014-11-13 19:29:06 +0900 | [diff] [blame] | 266 | |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 267 | config SYS_EXTRA_OPTIONS |
| 268 | string "Extra Options (DEPRECATED)" |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 269 | help |
| 270 | The old configuration infrastructure (= mkconfig + boards.cfg) |
Masahiro Yamada | f3e12b7 | 2014-09-16 16:32:58 +0900 | [diff] [blame] | 271 | provided the extra options field. If you have something like |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 272 | "HAS_BAR,BAZ=64", the optional options |
| 273 | #define CONFIG_HAS |
| 274 | #define CONFIG_BAZ 64 |
| 275 | will be defined in include/config.h. |
| 276 | This option was prepared for the smooth migration from the old |
| 277 | configuration to Kconfig. Since this option will be removed sometime, |
| 278 | new boards should not use this option. |
| 279 | |
Masahiro Yamada | c02a327 | 2014-10-30 15:30:58 +0900 | [diff] [blame] | 280 | config SYS_TEXT_BASE |
Masahiro Yamada | 39e48a5 | 2015-12-11 12:22:24 +0900 | [diff] [blame] | 281 | depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \ |
Paul Burton | aca04ce | 2016-05-17 11:56:39 +0100 | [diff] [blame] | 282 | (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE || MIPS |
Ben Stoltz | b7e4124 | 2015-08-04 12:33:41 -0600 | [diff] [blame] | 283 | depends on !EFI_APP |
Masahiro Yamada | c02a327 | 2014-10-30 15:30:58 +0900 | [diff] [blame] | 284 | hex "Text Base" |
| 285 | help |
| 286 | TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture |
| 287 | |
Simon Glass | a6131a2 | 2016-02-22 22:55:56 -0700 | [diff] [blame] | 288 | config SPL_LOAD_FIT |
| 289 | bool "Enable SPL loading U-Boot as a FIT" |
| 290 | depends on FIT |
| 291 | help |
| 292 | Normally with the SPL framework a legacy image is generated as part |
| 293 | of the build. This contains U-Boot along with information as to |
| 294 | where it should be loaded. This option instead enables generation |
| 295 | of a FIT (Flat Image Tree) which provides more flexibility. In |
| 296 | particular it can handle selecting from multiple device tree |
| 297 | and passing the correct one to U-Boot. |
| 298 | |
Alexey Brodkin | 693744a | 2015-01-13 18:49:01 +0300 | [diff] [blame] | 299 | config SYS_CLK_FREQ |
Iain Paton | 630df14 | 2015-03-28 10:26:38 +0000 | [diff] [blame] | 300 | depends on ARC || ARCH_SUNXI |
Alexey Brodkin | 693744a | 2015-01-13 18:49:01 +0300 | [diff] [blame] | 301 | int "CPU clock frequency" |
| 302 | help |
| 303 | TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture |
| 304 | |
Masahiro Yamada | 6ea06e6 | 2014-08-22 19:42:27 +0900 | [diff] [blame] | 305 | endmenu # Boot images |
Masahiro Yamada | 804bc5e | 2014-07-30 14:08:15 +0900 | [diff] [blame] | 306 | |
Masahiro Yamada | f3e12b7 | 2014-09-16 16:32:58 +0900 | [diff] [blame] | 307 | source "common/Kconfig" |
| 308 | |
Simon Glass | 29499a0 | 2016-01-17 20:53:51 -0700 | [diff] [blame] | 309 | source "cmd/Kconfig" |
| 310 | |
Masahiro Yamada | 9fadbc8 | 2014-09-22 19:59:05 +0900 | [diff] [blame] | 311 | source "dts/Kconfig" |
| 312 | |
Masahiro Yamada | f3e12b7 | 2014-09-16 16:32:58 +0900 | [diff] [blame] | 313 | source "net/Kconfig" |
| 314 | |
| 315 | source "drivers/Kconfig" |
| 316 | |
| 317 | source "fs/Kconfig" |
| 318 | |
| 319 | source "lib/Kconfig" |
Simon Glass | 9dd430d | 2015-02-05 21:41:37 -0700 | [diff] [blame] | 320 | |
| 321 | source "test/Kconfig" |