Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see the file Documentation/kbuild/kconfig-language.txt in the
   4 # Linux kernel source tree.
   5 #
   6 mainmenu "U-Boot $UBOOTVERSION Configuration"
   7
   8 config UBOOTVERSION
   9         string
  10         option env="UBOOTVERSION"
  11
  12 # Allow defaults in arch-specific code to override any given here
  13 source "arch/Kconfig"
  14
  15 menu "General setup"
  16
  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
  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
  30 config LOCALVERSION
  31         string "Local version - append to U-Boot release"
  32         help
  33           Append an extra string to the end of your U-Boot version.
  34           This will show up in your boot log, for example.
  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"
  42         default y
  43         help
  44           This will try to automatically determine if the current tree is a
  45           release tree by looking for Git tags that belong to the current
  46           top of tree revision.
  47
  48           A string of the format -gxxxxxxxx will be added to the localversion
  49           if a Git-based tree is found.  The string generated by this will be
  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
  60 config CC_OPTIMIZE_FOR_SIZE
  61         bool "Optimize for size"
  62         default y
  63         help
  64           Enabling this option will pass "-Os" instead of "-O2" to gcc
  65           resulting in a smaller U-Boot image.
  66
  67           This option is enabled by default for U-Boot.
  68
  69 config CC_COVERAGE
  70         bool "Enable code coverage analysis"
  71         depends on SANDBOX
  72         help
  73           Enabling this option will pass "--coverage" to gcc to compile
  74           and link code instrumented for coverage analysis.
  75
  76 config DISTRO_DEFAULTS
  77         bool "Select defaults suitable for booting general purpose Linux distributions"
  78         select AUTO_COMPLETE
  79         select CMDLINE_EDITING
  80         select CMD_BOOTI if ARM64
  81         select CMD_BOOTZ if ARM && !ARM64
  82         select CMD_DHCP if CMD_NET
  83         select CMD_ENV_EXISTS
  84         select CMD_EXT2
  85         select CMD_EXT4
  86         select CMD_FAT
  87         select CMD_FS_GENERIC
  88         select CMD_PART if PARTITIONS
  89         select CMD_PING if CMD_NET
  90         select CMD_PXE if NET
  91         select CMD_SYSBOOT
  92         select ENV_VARS_UBOOT_CONFIG
  93         select HUSH_PARSER
  94         select SUPPORT_RAW_INITRD
  95         select SYS_LONGHELP
  96         imply CMD_MII if NET
  97         imply USB_STORAGE
  98         imply USE_BOOTCOMMAND
  99         help
 100           Select this to enable various options and commands which are suitable
 101           for building u-boot for booting general purpose Linux distributions.
 102
 103 config ENV_VARS_UBOOT_CONFIG
 104         bool "Add arch, board, vendor and soc variables to default environment"
 105         help
 106           Define this in order to add variables describing the
 107           U-Boot build configuration to the default environment.
 108           These will be named arch, cpu, board, vendor, and soc.
 109           Enabling this option will cause the following to be defined:
 110           - CONFIG_SYS_ARCH
 111           - CONFIG_SYS_CPU
 112           - CONFIG_SYS_BOARD
 113           - CONFIG_SYS_VENDOR
 114           - CONFIG_SYS_SOC
 115
 116 config NR_DRAM_BANKS
 117         int "Number of DRAM banks"
 118         default 4
 119         help
 120           This defines the number of DRAM banks.
 121
 122 config SYS_BOOT_GET_CMDLINE
 123         bool "Enable kernel command line setup"
 124         help
 125           Enables allocating and saving kernel cmdline in space between
 126           "bootm_low" and "bootm_low" + BOOTMAPSZ.
 127
 128 config SYS_BOOT_GET_KBD
 129         bool "Enable kernel board information setup"
 130         help
 131           Enables allocating and saving a kernel copy of the bd_info in
 132           space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
 133
 134 config SYS_MALLOC_F
 135         bool "Enable malloc() pool before relocation"
 136         default y if DM
 137
 138         help
 139           Before relocation, memory is very limited on many platforms. Still,
 140           we can provide a small malloc() pool if needed. Driver model in
 141           particular needs this to operate, so that it can allocate the
 142           initial serial device and any others that are needed.
 143
 144 config SYS_MALLOC_F_LEN
 145         hex "Size of malloc() pool before relocation"
 146         depends on SYS_MALLOC_F
 147         default 0x1000 if AM33XX
 148         default 0x2800 if SANDBOX
 149         default 0x2000 if (ARCH_IMX8 || ARCH_IMX8M || ARCH_MX7 || \
 150                            ARCH_MX7ULP || ARCH_MX6 || ARCH_MX5 || \
 151                            ARCH_LS1012A || ARCH_LS1021A || ARCH_LS1043A || \
 152                            ARCH_LS1046A)
 153         default 0x400
 154         help
 155           Before relocation, memory is very limited on many platforms. Still,
 156           we can provide a small malloc() pool if needed. Driver model in
 157           particular needs this to operate, so that it can allocate the
 158           initial serial device and any others that are needed.
 159
 160 config SYS_MALLOC_LEN
 161         hex "Define memory for Dynamic allocation"
 162         depends on ARCH_ZYNQ || ARCH_VERSAL || ARCH_STM32MP || ARCH_ROCKCHIP
 163         default 0x2000000 if ARCH_ROCKCHIP
 164         help
 165           This defines memory to be allocated for Dynamic allocation
 166           TODO: Use for other architectures
 167
 168 config SPL_SYS_MALLOC_F_LEN
 169         hex "Size of malloc() pool in SPL before relocation"
 170         depends on SYS_MALLOC_F && SPL
 171         default 0x2800 if RCAR_GEN3
 172         default SYS_MALLOC_F_LEN
 173         help
 174           Before relocation, memory is very limited on many platforms. Still,
 175           we can provide a small malloc() pool if needed. Driver model in
 176           particular needs this to operate, so that it can allocate the
 177           initial serial device and any others that are needed.
 178
 179 config TPL_SYS_MALLOC_F_LEN
 180         hex "Size of malloc() pool in TPL before relocation"
 181         depends on SYS_MALLOC_F && TPL
 182         default SYS_MALLOC_F_LEN
 183         help
 184           Before relocation, memory is very limited on many platforms. Still,
 185           we can provide a small malloc() pool if needed. Driver model in
 186           particular needs this to operate, so that it can allocate the
 187           initial serial device and any others that are needed.
 188
 189 menuconfig EXPERT
 190         bool "Configure standard U-Boot features (expert users)"
 191         default y
 192         help
 193           This option allows certain base U-Boot options and settings
 194           to be disabled or tweaked. This is for specialized
 195           environments which can tolerate a "non-standard" U-Boot.
 196           Use this only if you really know what you are doing.
 197
 198 if EXPERT
 199         config SYS_MALLOC_CLEAR_ON_INIT
 200         bool "Init with zeros the memory reserved for malloc (slow)"
 201         default y
 202         help
 203           This setting is enabled by default. The reserved malloc
 204           memory is initialized with zeros, so first malloc calls
 205           will return the pointer to the zeroed memory. But this
 206           slows the boot time.
 207
 208           It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
 209           value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
 210           Then the boot time can be significantly reduced.
 211           Warning:
 212           When disabling this, please check if malloc calls, maybe
 213           should be replaced by calloc - if one expects zeroed memory.
 214
 215 config TOOLS_DEBUG
 216         bool "Enable debug information for tools"
 217         help
 218           Enable generation of debug information for tools such as mkimage.
 219           This can be used for debugging purposes. With debug information
 220           it is possible to set breakpoints on particular lines, single-step
 221           debug through the source code, etc.
 222
 223 endif # EXPERT
 224
 225 config PHYS_64BIT
 226         bool "64bit physical address support"
 227         help
 228           Say Y here to support 64bit physical memory address.
 229           This can be used not only for 64bit SoCs, but also for
 230           large physical address extension on 32bit SoCs.
 231
 232 config BUILD_ROM
 233         bool "Build U-Boot as BIOS replacement"
 234         depends on X86
 235         help
 236           This option allows to build a ROM version of U-Boot.
 237           The build process generally requires several binary blobs
 238           which are not shipped in the U-Boot source tree.
 239           Please, see doc/README.x86 for details.
 240
 241 config SPL_IMAGE
 242         string "SPL image used in the combined SPL+U-Boot image"
 243         default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
 244         default "spl/u-boot-spl.bin"
 245         depends on SPL
 246         help
 247           Select the SPL build target that shall be generated by the SPL
 248           build process (default spl/u-boot-spl.bin). This image will be
 249           used to generate a combined image with SPL and main U-Boot
 250           proper as one single image.
 251
 252 config BUILD_TARGET
 253         string "Build target special images"
 254         default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
 255         default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
 256         default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
 257         default "u-boot-elf.srec" if RCAR_GEN3
 258         default "u-boot.itb" if SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
 259                                 ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
 260         default "u-boot.kwb" if KIRKWOOD
 261         default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
 262         default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
 263         help
 264           Some SoCs need special image types (e.g. U-Boot binary
 265           with a special header) as build targets. By defining
 266           CONFIG_BUILD_TARGET in the SoC / board header, this
 267           special image will be automatically built upon calling
 268           make / buildman.
 269
 270 config SYS_CUSTOM_LDSCRIPT
 271         bool "Use a custom location for the U-Boot linker script"
 272         help
 273           Normally when linking U-Boot we will look in the board directory,
 274           the CPU directory and finally the "cpu" directory of the architecture
 275           for the ile "u-boot.lds" and use that as our linker.  However, in
 276           some cases we need to provide a different linker script.  To do so,
 277           enable this option and then provide the location under
 278           CONFIG_SYS_LDSCRIPT.
 279
 280 config SYS_LDSCRIPT
 281         depends on SYS_CUSTOM_LDSCRIPT
 282         string "Custom ldscript location"
 283         help
 284           Path within the source tree to the linker script to use for the
 285           main U-Boot binary.
 286
 287 config ERR_PTR_OFFSET
 288         hex
 289         default 0x0
 290         help
 291           Some U-Boot pointers have redundant information, so we can use a
 292           scheme where we can return either an error code or a pointer with the
 293           same return value. The default implementation just casts the pointer
 294           to a number, however, this may fail on platforms where the end of the
 295           address range is used for valid pointers (e.g. 0xffffff00 is a valid
 296           heap pointer in socfpga SPL).
 297           For such platforms, this value provides an upper range of those error
 298           pointer values - up to 'MAX_ERRNO' bytes below this value must be
 299           unused/invalid addresses.
 300
 301 endmenu         # General setup
 302
 303 menu "Boot images"
 304
 305 config ANDROID_BOOT_IMAGE
 306         bool "Enable support for Android Boot Images"
 307         default y if FASTBOOT
 308         help
 309           This enables support for booting images which use the Android
 310           image format header.
 311
 312 config FIT
 313         bool "Support Flattened Image Tree"
 314         select MD5
 315         select SHA1
 316         help
 317           This option allows you to boot the new uImage structure,
 318           Flattened Image Tree.  FIT is formally a FDT, which can include
 319           images of various types (kernel, FDT blob, ramdisk, etc.)
 320           in a single blob.  To boot this new uImage structure,
 321           pass the address of the blob to the "bootm" command.
 322           FIT is very flexible, supporting compression, multiple images,
 323           multiple configurations, verification through hashing and also
 324           verified boot (secure boot using RSA).
 325
 326 if FIT
 327
 328 config FIT_EXTERNAL_OFFSET
 329         hex "FIT external data offset"
 330         default 0x0
 331         help
 332           This specifies a data offset in fit image.
 333           The offset is from data payload offset to the beginning of
 334           fit image header. When specifies a offset, specific data
 335           could be put in the hole between data payload and fit image
 336           header, such as CSF data on i.MX platform.
 337
 338 config FIT_ENABLE_SHA256_SUPPORT
 339         bool "Support SHA256 checksum of FIT image contents"
 340         default y
 341         select SHA256
 342         help
 343           Enable this to support SHA256 checksum of FIT image contents. A
 344           SHA256 checksum is a 256-bit (32-byte) hash value used to check that
 345           the image contents have not been corrupted. SHA256 is recommended
 346           for use in secure applications since (as at 2016) there is no known
 347           feasible attack that could produce a 'collision' with differing
 348           input data. Use this for the highest security. Note that only the
 349           SHA256 variant is supported: SHA512 and others are not currently
 350           supported in U-Boot.
 351
 352 config FIT_SIGNATURE
 353         bool "Enable signature verification of FIT uImages"
 354         depends on DM
 355         select HASH
 356         select RSA
 357         select RSA_VERIFY
 358         select IMAGE_SIGN_INFO
 359         help
 360           This option enables signature verification of FIT uImages,
 361           using a hash signed and verified using RSA. If
 362           CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
 363           hashing is available using hardware, then the RSA library will use
 364           it. See doc/uImage.FIT/signature.txt for more details.
 365
 366           WARNING: When relying on signed FIT images with a required signature
 367           check the legacy image format is disabled by default, so that
 368           unsigned images cannot be loaded. If a board needs the legacy image
 369           format support in this case, enable it using
 370           CONFIG_LEGACY_IMAGE_FORMAT.
 371
 372 config FIT_SIGNATURE_MAX_SIZE
 373         hex "Max size of signed FIT structures"
 374         depends on FIT_SIGNATURE
 375         default 0x10000000
 376         help
 377           This option sets a max size in bytes for verified FIT uImages.
 378           A sane value of 256MB protects corrupted DTB structures from overlapping
 379           device memory. Assure this size does not extend past expected storage
 380           space.
 381
 382 config FIT_ENABLE_RSASSA_PSS_SUPPORT
 383         bool "Support rsassa-pss signature scheme of FIT image contents"
 384         depends on FIT_SIGNATURE
 385         default n
 386         help
 387           Enable this to support the pss padding algorithm as described
 388           in the rfc8017 (https://tools.ietf.org/html/rfc8017).
 389
 390 config FIT_CIPHER
 391         bool "Enable ciphering data in a FIT uImages"
 392         depends on DM
 393         select AES
 394         help
 395           Enable the feature of data ciphering/unciphering in the tool mkimage
 396           and in the u-boot support of the FIT image.
 397
 398 config FIT_VERBOSE
 399         bool "Show verbose messages when FIT images fail"
 400         help
 401           Generally a system will have valid FIT images so debug messages
 402           are a waste of code space. If you are debugging your images then
 403           you can enable this option to get more verbose information about
 404           failures.
 405
 406 config FIT_BEST_MATCH
 407         bool "Select the best match for the kernel device tree"
 408         help
 409           When no configuration is explicitly selected, default to the
 410           one whose fdt's compatibility field best matches that of
 411           U-Boot itself. A match is considered "best" if it matches the
 412           most specific compatibility entry of U-Boot's fdt's root node.
 413           The order of entries in the configuration's fdt is ignored.
 414
 415 config FIT_IMAGE_POST_PROCESS
 416         bool "Enable post-processing of FIT artifacts after loading by U-Boot"
 417         depends on TI_SECURE_DEVICE
 418         help
 419           Allows doing any sort of manipulation to blobs after they got extracted
 420           from FIT images like stripping off headers or modifying the size of the
 421           blob, verification, authentication, decryption etc. in a platform or
 422           board specific way. In order to use this feature a platform or board-
 423           specific implementation of board_fit_image_post_process() must be
 424           provided. Also, anything done during this post-processing step would
 425           need to be comprehended in how the images were prepared before being
 426           injected into the FIT creation (i.e. the blobs would have been pre-
 427           processed before being added to the FIT image).
 428
 429 if SPL
 430
 431 config SPL_FIT
 432         bool "Support Flattened Image Tree within SPL"
 433         depends on SPL
 434         select SPL_OF_LIBFDT
 435
 436 config SPL_FIT_PRINT
 437         bool "Support FIT printing within SPL"
 438         depends on SPL_FIT
 439         help
 440           Support printing the content of the fitImage in a verbose manner in SPL.
 441
 442 config SPL_FIT_SIGNATURE
 443         bool "Enable signature verification of FIT firmware within SPL"
 444         depends on SPL_DM
 445         select SPL_FIT
 446         select SPL_RSA
 447         select SPL_RSA_VERIFY
 448         select IMAGE_SIGN_INFO
 449
 450 config SPL_LOAD_FIT
 451         bool "Enable SPL loading U-Boot as a FIT (basic fitImage features)"
 452         select SPL_FIT
 453         help
 454           Normally with the SPL framework a legacy image is generated as part
 455           of the build. This contains U-Boot along with information as to
 456           where it should be loaded. This option instead enables generation
 457           of a FIT (Flat Image Tree) which provides more flexibility. In
 458           particular it can handle selecting from multiple device tree
 459           and passing the correct one to U-Boot.
 460
 461 config SPL_LOAD_FIT_APPLY_OVERLAY
 462         bool "Enable SPL applying DT overlays from FIT"
 463         depends on SPL_LOAD_FIT
 464         select OF_LIBFDT_OVERLAY
 465         help
 466           The device tree is loaded from the FIT image. Allow the SPL is to
 467           also load device-tree overlays from the FIT image an apply them
 468           over the device tree.
 469
 470 config SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ
 471         depends on SPL_LOAD_FIT_APPLY_OVERLAY
 472         default 0x10000
 473         hex "size of temporary buffer used to load the overlays"
 474         help
 475           The size of the area where the overlays will be loaded and
 476           uncompress. Must be at least as large as biggest overlay
 477           (uncompressed)
 478
 479 config SPL_LOAD_FIT_FULL
 480         bool "Enable SPL loading U-Boot as a FIT (full fitImage features)"
 481         select SPL_FIT
 482         help
 483           Normally with the SPL framework a legacy image is generated as part
 484           of the build. This contains U-Boot along with information as to
 485           where it should be loaded. This option instead enables generation
 486           of a FIT (Flat Image Tree) which provides more flexibility. In
 487           particular it can handle selecting from multiple device tree
 488           and passing the correct one to U-Boot.
 489
 490 config SPL_FIT_IMAGE_POST_PROCESS
 491         bool "Enable post-processing of FIT artifacts after loading by the SPL"
 492         depends on SPL_LOAD_FIT
 493         help
 494           Allows doing any sort of manipulation to blobs after they got extracted
 495           from the U-Boot FIT image like stripping off headers or modifying the
 496           size of the blob, verification, authentication, decryption etc. in a
 497           platform or board specific way. In order to use this feature a platform
 498           or board-specific implementation of board_fit_image_post_process() must
 499           be provided. Also, anything done during this post-processing step would
 500           need to be comprehended in how the images were prepared before being
 501           injected into the FIT creation (i.e. the blobs would have been pre-
 502           processed before being added to the FIT image).
 503
 504 config SPL_FIT_SOURCE
 505         string ".its source file for U-Boot FIT image"
 506         depends on SPL_FIT
 507         help
 508           Specifies a (platform specific) FIT source file to generate the
 509           U-Boot FIT image. This could specify further image to load and/or
 510           execute.
 511
 512 config SPL_FIT_GENERATOR
 513         string ".its file generator script for U-Boot FIT image"
 514         depends on SPL_FIT
 515         default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI
 516         default "arch/arm/mach-rockchip/make_fit_atf.py" if SPL_LOAD_FIT && ARCH_ROCKCHIP
 517         default "arch/arm/mach-zynqmp/mkimage_fit_atf.sh" if SPL_LOAD_FIT && ARCH_ZYNQMP
 518         default "arch/riscv/lib/mkimage_fit_opensbi.sh" if SPL_LOAD_FIT && RISCV
 519         help
 520           Specifies a (platform specific) script file to generate the FIT
 521           source file used to build the U-Boot FIT image file. This gets
 522           passed a list of supported device tree file stub names to
 523           include in the generated image.
 524
 525 endif # SPL
 526
 527 endif # FIT
 528
 529 config LEGACY_IMAGE_FORMAT
 530         bool "Enable support for the legacy image format"
 531         default y if !FIT_SIGNATURE
 532         help
 533           This option enables the legacy image format. It is enabled by
 534           default for backward compatibility, unless FIT_SIGNATURE is
 535           set where it is disabled so that unsigned images cannot be
 536           loaded. If a board needs the legacy image format support in this
 537           case, enable it here.
 538
 539 config OF_BOARD_SETUP
 540         bool "Set up board-specific details in device tree before boot"
 541         depends on OF_LIBFDT
 542         help
 543           This causes U-Boot to call ft_board_setup() before booting into
 544           the Operating System. This function can set up various
 545           board-specific information in the device tree for use by the OS.
 546           The device tree is then passed to the OS.
 547
 548 config OF_SYSTEM_SETUP
 549         bool "Set up system-specific details in device tree before boot"
 550         depends on OF_LIBFDT
 551         help
 552           This causes U-Boot to call ft_system_setup() before booting into
 553           the Operating System. This function can set up various
 554           system-specific information in the device tree for use by the OS.
 555           The device tree is then passed to the OS.
 556
 557 config OF_STDOUT_VIA_ALIAS
 558         bool "Update the device-tree stdout alias from U-Boot"
 559         depends on OF_LIBFDT
 560         help
 561           This uses U-Boot's serial alias from the aliases node to update
 562           the device tree passed to the OS. The "linux,stdout-path" property
 563           in the chosen node is set to point to the correct serial node.
 564           This option currently references CONFIG_CONS_INDEX, which is
 565           incorrect when used with device tree as this option does not
 566           exist / should not be used.
 567
 568 config SYS_EXTRA_OPTIONS
 569         string "Extra Options (DEPRECATED)"
 570         help
 571           The old configuration infrastructure (= mkconfig + boards.cfg)
 572           provided the extra options field. If you have something like
 573           "HAS_BAR,BAZ=64", the optional options
 574             #define CONFIG_HAS
 575             #define CONFIG_BAZ  64
 576           will be defined in include/config.h.
 577           This option was prepared for the smooth migration from the old
 578           configuration to Kconfig. Since this option will be removed sometime,
 579           new boards should not use this option.
 580
 581 config HAVE_SYS_TEXT_BASE
 582         bool
 583         depends on !NIOS2 && !XTENSA
 584         depends on !EFI_APP
 585         default y
 586
 587 config SYS_TEXT_BASE
 588         depends on HAVE_SYS_TEXT_BASE
 589         default 0x80800000 if ARCH_OMAP2PLUS || ARCH_K3
 590         default 0x4a000000 if ARCH_SUNXI && !MACH_SUN9I && !MACH_SUN8I_V3S
 591         default 0x2a000000 if ARCH_SUNXI && MACH_SUN9I
 592         default 0x42e00000 if ARCH_SUNXI && MACH_SUN8I_V3S
 593         hex "Text Base"
 594         help
 595           The address in memory that U-Boot will be running from, initially.
 596
 597 config SYS_CLK_FREQ
 598         depends on ARC || ARCH_SUNXI || MPC83xx
 599         int "CPU clock frequency"
 600         help
 601           TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
 602
 603 config ARCH_FIXUP_FDT_MEMORY
 604         bool "Enable arch_fixup_memory_banks() call"
 605         default y
 606         help
 607           Enable FDT memory map syncup before OS boot. This feature can be
 608           used for booting OS with different memory setup where the part of
 609           the memory location should be used for different purpose.
 610
 611 endmenu         # Boot images
 612
 613 source "api/Kconfig"
 614
 615 source "common/Kconfig"
 616
 617 source "cmd/Kconfig"
 618
 619 source "disk/Kconfig"
 620
 621 source "dts/Kconfig"
 622
 623 source "env/Kconfig"
 624
 625 source "net/Kconfig"
 626
 627 source "drivers/Kconfig"
 628
 629 source "fs/Kconfig"
 630
 631 source "lib/Kconfig"
 632
 633 source "test/Kconfig"