151631259SMasahiro Yamada# 251631259SMasahiro Yamada# For a description of the syntax of this configuration file, 359d7c34bSRobert P. J. Day# see the file Documentation/kbuild/kconfig-language.txt in the 459d7c34bSRobert P. J. Day# Linux kernel source tree. 551631259SMasahiro Yamada# 651631259SMasahiro Yamadamainmenu "U-Boot $UBOOTVERSION Configuration" 751631259SMasahiro Yamada 851631259SMasahiro Yamadaconfig UBOOTVERSION 951631259SMasahiro Yamada string 1051631259SMasahiro Yamada option env="UBOOTVERSION" 1151631259SMasahiro Yamada 1266afaef2SSimon Glass# Allow defaults in arch-specific code to override any given here 1366afaef2SSimon Glasssource "arch/Kconfig" 1466afaef2SSimon Glass 1551631259SMasahiro Yamadamenu "General setup" 1651631259SMasahiro Yamada 174c7a2110SHeinrich Schuchardtconfig BROKEN 184c7a2110SHeinrich Schuchardt bool 194c7a2110SHeinrich Schuchardt help 204c7a2110SHeinrich Schuchardt This option cannot be enabled. It is used as dependency 214c7a2110SHeinrich Schuchardt for broken and incomplete features. 224c7a2110SHeinrich Schuchardt 23e91c3c33SMasahiro Yamadaconfig LOCALVERSION 24e91c3c33SMasahiro Yamada string "Local version - append to U-Boot release" 25e91c3c33SMasahiro Yamada help 26e91c3c33SMasahiro Yamada Append an extra string to the end of your U-Boot version. 2759d7c34bSRobert P. J. Day This will show up in your boot log, for example. 28e91c3c33SMasahiro Yamada The string you set here will be appended after the contents of 29e91c3c33SMasahiro Yamada any files with a filename matching localversion* in your 30e91c3c33SMasahiro Yamada object and source tree, in that order. Your total string can 31e91c3c33SMasahiro Yamada be a maximum of 64 characters. 32e91c3c33SMasahiro Yamada 33e91c3c33SMasahiro Yamadaconfig LOCALVERSION_AUTO 34e91c3c33SMasahiro Yamada bool "Automatically append version information to the version string" 35e91c3c33SMasahiro Yamada default y 36e91c3c33SMasahiro Yamada help 37e91c3c33SMasahiro Yamada This will try to automatically determine if the current tree is a 3859d7c34bSRobert P. J. Day release tree by looking for Git tags that belong to the current 39e91c3c33SMasahiro Yamada top of tree revision. 40e91c3c33SMasahiro Yamada 41e91c3c33SMasahiro Yamada A string of the format -gxxxxxxxx will be added to the localversion 4259d7c34bSRobert P. J. Day if a Git-based tree is found. The string generated by this will be 43e91c3c33SMasahiro Yamada appended after any matching localversion* files, and after the value 44e91c3c33SMasahiro Yamada set in CONFIG_LOCALVERSION. 45e91c3c33SMasahiro Yamada 46e91c3c33SMasahiro Yamada (The actual string used here is the first eight characters produced 47e91c3c33SMasahiro Yamada by running the command: 48e91c3c33SMasahiro Yamada 49e91c3c33SMasahiro Yamada $ git rev-parse --verify HEAD 50e91c3c33SMasahiro Yamada 51e91c3c33SMasahiro Yamada which is done within the script "scripts/setlocalversion".) 52e91c3c33SMasahiro Yamada 534a8ed8e2SMasahiro Yamadaconfig CC_OPTIMIZE_FOR_SIZE 544a8ed8e2SMasahiro Yamada bool "Optimize for size" 554a8ed8e2SMasahiro Yamada default y 564a8ed8e2SMasahiro Yamada help 574a8ed8e2SMasahiro Yamada Enabling this option will pass "-Os" instead of "-O2" to gcc 584a8ed8e2SMasahiro Yamada resulting in a smaller U-Boot image. 594a8ed8e2SMasahiro Yamada 604a8ed8e2SMasahiro Yamada This option is enabled by default for U-Boot. 614a8ed8e2SMasahiro Yamada 6252ff8020SChristian Gmeinerconfig CC_COVERAGE 6352ff8020SChristian Gmeiner bool "Enable code coverage analysis" 6452ff8020SChristian Gmeiner depends on SANDBOX 6552ff8020SChristian Gmeiner help 6652ff8020SChristian Gmeiner Enabling this option will pass "--coverage" to gcc to compile 6752ff8020SChristian Gmeiner and link code instrumented for coverage analysis. 6852ff8020SChristian Gmeiner 699f823615SHans de Goedeconfig DISTRO_DEFAULTS 709f823615SHans de Goede bool "Select defaults suitable for booting general purpose Linux distributions" 713337e3afSTom Rini default y if ARCH_SUNXI || TEGRA 72b99ebaf9SAlexander Graf default y if ARCH_LS2080A 7370b8bd7dSAndreas Färber default y if ARCH_MESON 747bdedf11SRomain Perier default y if ARCH_ROCKCHIP 759f823615SHans de Goede default n 76b6251db8STom Rini imply USE_BOOTCOMMAND 77a391d500STom Rini select CMD_BOOTZ if ARM && !ARM64 7826959271SMasahiro Yamada select CMD_BOOTI if ARM64 79ba628855SJoe Hershberger select CMD_DHCP if CMD_NET 80ba628855SJoe Hershberger select CMD_PING if CMD_NET 81092f2f35SJoe Hershberger select CMD_PXE if NET 829f823615SHans de Goede select CMD_EXT2 839f823615SHans de Goede select CMD_EXT4 849f823615SHans de Goede select CMD_FAT 859f823615SHans de Goede select CMD_FS_GENERIC 863b3ea2c5SMichal Simek imply CMD_MII if NET 87fa2c1467STom Rini select CMD_PART if PARTITIONS 889f823615SHans de Goede select HUSH_PARSER 89d021e942SAdam Ford select CMDLINE_EDITING 90d021e942SAdam Ford select AUTO_COMPLETE 91d021e942SAdam Ford select SYS_LONGHELP 92d021e942SAdam Ford select SUPPORT_RAW_INITRD 93d021e942SAdam Ford select ENV_VARS_UBOOT_CONFIG 949f823615SHans de Goede help 959f823615SHans de Goede Select this to enable various options and commands which are suitable 969f823615SHans de Goede for building u-boot for booting general purpose Linux distributions. 979f823615SHans de Goede 98d021e942SAdam Fordconfig ENV_VARS_UBOOT_CONFIG 99d021e942SAdam Ford bool "Add arch, board, vendor and soc variables to default environment" 100d021e942SAdam Ford help 101d021e942SAdam Ford Define this in order to add variables describing the 102d021e942SAdam Ford U-Boot build configuration to the default environment. 103d021e942SAdam Ford These will be named arch, cpu, board, vendor, and soc. 104d021e942SAdam Ford Enabling this option will cause the following to be defined: 105d021e942SAdam Ford - CONFIG_SYS_ARCH 106d021e942SAdam Ford - CONFIG_SYS_CPU 107d021e942SAdam Ford - CONFIG_SYS_BOARD 108d021e942SAdam Ford - CONFIG_SYS_VENDOR 109d021e942SAdam Ford - CONFIG_SYS_SOC 110d021e942SAdam Ford 111405fc830SDerald D. Woodsconfig SYS_BOOT_GET_CMDLINE 112405fc830SDerald D. Woods bool "Enable kernel command line setup" 113405fc830SDerald D. Woods help 114405fc830SDerald D. Woods Enables allocating and saving kernel cmdline in space between 115405fc830SDerald D. Woods "bootm_low" and "bootm_low" + BOOTMAPSZ. 116405fc830SDerald D. Woods 117405fc830SDerald D. Woodsconfig SYS_BOOT_GET_KBD 118405fc830SDerald D. Woods bool "Enable kernel board information setup" 119405fc830SDerald D. Woods help 120405fc830SDerald D. Woods Enables allocating and saving a kernel copy of the bd_info in 121405fc830SDerald D. Woods space between "bootm_low" and "bootm_low" + BOOTMAPSZ. 122405fc830SDerald D. Woods 123b724bd7dSSimon Glassconfig SYS_MALLOC_F 124b724bd7dSSimon Glass bool "Enable malloc() pool before relocation" 125326a6823SMasahiro Yamada default y if DM 126b724bd7dSSimon Glass help 12759d7c34bSRobert P. J. Day Before relocation, memory is very limited on many platforms. Still, 128b724bd7dSSimon Glass we can provide a small malloc() pool if needed. Driver model in 129b724bd7dSSimon Glass particular needs this to operate, so that it can allocate the 130b724bd7dSSimon Glass initial serial device and any others that are needed. 131b724bd7dSSimon Glass 132b724bd7dSSimon Glassconfig SYS_MALLOC_F_LEN 133b724bd7dSSimon Glass hex "Size of malloc() pool before relocation" 134b724bd7dSSimon Glass depends on SYS_MALLOC_F 13590e407aeSSjoerd Simons default 0x1000 if AM33XX 136b724bd7dSSimon Glass default 0x400 137b724bd7dSSimon Glass help 13859d7c34bSRobert P. J. Day Before relocation, memory is very limited on many platforms. Still, 139b724bd7dSSimon Glass we can provide a small malloc() pool if needed. Driver model in 140b724bd7dSSimon Glass particular needs this to operate, so that it can allocate the 141b724bd7dSSimon Glass initial serial device and any others that are needed. 142b724bd7dSSimon Glass 143f1896c45SAndy Yanconfig SPL_SYS_MALLOC_F_LEN 144ae2cee2eSPhilipp Tomsich hex "Size of malloc() pool in SPL before relocation" 145ae2cee2eSPhilipp Tomsich depends on SYS_MALLOC_F 146ae2cee2eSPhilipp Tomsich default SYS_MALLOC_F_LEN 147ae2cee2eSPhilipp Tomsich help 148ae2cee2eSPhilipp Tomsich Before relocation, memory is very limited on many platforms. Still, 149ae2cee2eSPhilipp Tomsich we can provide a small malloc() pool if needed. Driver model in 150ae2cee2eSPhilipp Tomsich particular needs this to operate, so that it can allocate the 151ae2cee2eSPhilipp Tomsich initial serial device and any others that are needed. 152ae2cee2eSPhilipp Tomsich 153ae2cee2eSPhilipp Tomsichconfig TPL_SYS_MALLOC_F_LEN 154ae2cee2eSPhilipp Tomsich hex "Size of malloc() pool in TPL before relocation" 155f1896c45SAndy Yan depends on SYS_MALLOC_F 156f1896c45SAndy Yan default SYS_MALLOC_F_LEN 157f1896c45SAndy Yan help 158f1896c45SAndy Yan Before relocation, memory is very limited on many platforms. Still, 159f1896c45SAndy Yan we can provide a small malloc() pool if needed. Driver model in 160f1896c45SAndy Yan particular needs this to operate, so that it can allocate the 161f1896c45SAndy Yan initial serial device and any others that are needed. 162f1896c45SAndy Yan 1631bf0979fSTom Rinimenuconfig EXPERT 1641bf0979fSTom Rini bool "Configure standard U-Boot features (expert users)" 1650aa8a4adSPrzemyslaw Marczak default y 1661bf0979fSTom Rini help 1671bf0979fSTom Rini This option allows certain base U-Boot options and settings 1681bf0979fSTom Rini to be disabled or tweaked. This is for specialized 1691bf0979fSTom Rini environments which can tolerate a "non-standard" U-Boot. 17059d7c34bSRobert P. J. Day Use this only if you really know what you are doing. 1711bf0979fSTom Rini 1720aa8a4adSPrzemyslaw Marczakif EXPERT 1730aa8a4adSPrzemyslaw Marczak config SYS_MALLOC_CLEAR_ON_INIT 1740aa8a4adSPrzemyslaw Marczak bool "Init with zeros the memory reserved for malloc (slow)" 1750aa8a4adSPrzemyslaw Marczak default y 1760aa8a4adSPrzemyslaw Marczak help 1770aa8a4adSPrzemyslaw Marczak This setting is enabled by default. The reserved malloc 1780aa8a4adSPrzemyslaw Marczak memory is initialized with zeros, so first malloc calls 1790aa8a4adSPrzemyslaw Marczak will return the pointer to the zeroed memory. But this 1800aa8a4adSPrzemyslaw Marczak slows the boot time. 1810aa8a4adSPrzemyslaw Marczak 1820aa8a4adSPrzemyslaw Marczak It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN 1830aa8a4adSPrzemyslaw Marczak value, has more than few MiB, e.g. when uses bzip2 or bmp logo. 1840aa8a4adSPrzemyslaw Marczak Then the boot time can be significantly reduced. 1850aa8a4adSPrzemyslaw Marczak Warning: 1860aa8a4adSPrzemyslaw Marczak When disabling this, please check if malloc calls, maybe 18759d7c34bSRobert P. J. Day should be replaced by calloc - if one expects zeroed memory. 188022885cbSSimon Glass 189022885cbSSimon Glassconfig TOOLS_DEBUG 190022885cbSSimon Glass bool "Enable debug information for tools" 191022885cbSSimon Glass help 192022885cbSSimon Glass Enable generation of debug information for tools such as mkimage. 193022885cbSSimon Glass This can be used for debugging purposes. With debug information 194022885cbSSimon Glass it is possible to set breakpoints on particular lines, single-step 195022885cbSSimon Glass debug through the source code, etc. 196022885cbSSimon Glass 197266aa86bSRobert P. J. Dayendif # EXPERT 198bb6b142fSMasahiro Yamada 199bb6b142fSMasahiro Yamadaconfig PHYS_64BIT 200bb6b142fSMasahiro Yamada bool "64bit physical address support" 201bb6b142fSMasahiro Yamada help 202bb6b142fSMasahiro Yamada Say Y here to support 64bit physical memory address. 203bb6b142fSMasahiro Yamada This can be used not only for 64bit SoCs, but also for 204bb6b142fSMasahiro Yamada large physical address extention on 32bit SoCs. 205bb6b142fSMasahiro Yamada 206871aa41dSHeinrich Schuchardtconfig BUILD_ROM 207871aa41dSHeinrich Schuchardt bool "Build U-Boot as BIOS replacement" 208871aa41dSHeinrich Schuchardt depends on X86 209871aa41dSHeinrich Schuchardt help 210871aa41dSHeinrich Schuchardt This option allows to build a ROM version of U-Boot. 211871aa41dSHeinrich Schuchardt The build process generally requires several binary blobs 212871aa41dSHeinrich Schuchardt which are not shipped in the U-Boot source tree. 213871aa41dSHeinrich Schuchardt Please, see doc/README.x86 for details. 214871aa41dSHeinrich Schuchardt 21540ad4c4bSMasahiro Yamadaendmenu # General setup 21640ad4c4bSMasahiro Yamada 217e91c3c33SMasahiro Yamadamenu "Boot images" 218e91c3c33SMasahiro Yamada 21948f6232eSTom Riniconfig ANDROID_BOOT_IMAGE 22048f6232eSTom Rini bool "Enable support for Android Boot Images" 22148f6232eSTom Rini default y if FASTBOOT 22248f6232eSTom Rini help 22348f6232eSTom Rini This enables support for booting images which use the Android 22448f6232eSTom Rini image format header. 22548f6232eSTom Rini 226b6cf4439SMasahiro Yamadaconfig FIT 227b6cf4439SMasahiro Yamada bool "Support Flattened Image Tree" 228aeb9c53cSAndre Przywara select MD5 229089df18bSTom Rini select SHA1 230b6cf4439SMasahiro Yamada help 231266aa86bSRobert P. J. Day This option allows you to boot the new uImage structure, 232b6cf4439SMasahiro Yamada Flattened Image Tree. FIT is formally a FDT, which can include 233b6cf4439SMasahiro Yamada images of various types (kernel, FDT blob, ramdisk, etc.) 234b6cf4439SMasahiro Yamada in a single blob. To boot this new uImage structure, 2351f9ac4a4SIgor Grinberg pass the address of the blob to the "bootm" command. 23673223f0eSSimon Glass FIT is very flexible, supporting compression, multiple images, 23773223f0eSSimon Glass multiple configurations, verification through hashing and also 238266aa86bSRobert P. J. Day verified boot (secure boot using RSA). 239b6cf4439SMasahiro Yamada 240266aa86bSRobert P. J. Dayif FIT 241b6cf4439SMasahiro Yamada 2420db7f685STom Riniconfig FIT_ENABLE_SHA256_SUPPORT 2430db7f685STom Rini bool "Support SHA256 checksum of FIT image contents" 244089df18bSTom Rini select SHA256 2450db7f685STom Rini default y 2460db7f685STom Rini help 2470db7f685STom Rini Enable this to support SHA256 checksum of FIT image contents. A 2480db7f685STom Rini SHA256 checksum is a 256-bit (32-byte) hash value used to check that 2490db7f685STom Rini the image contents have not been corrupted. SHA256 is recommended 2500db7f685STom Rini for use in secure applications since (as at 2016) there is no known 2510db7f685STom Rini feasible attack that could produce a 'collision' with differing 2520db7f685STom Rini input data. Use this for the highest security. Note that only the 2530db7f685STom Rini SHA256 variant is supported: SHA512 and others are not currently 2540db7f685STom Rini supported in U-Boot. 2550db7f685STom Rini 256b6cf4439SMasahiro Yamadaconfig FIT_SIGNATURE 257c4beb22fSRuchika Gupta bool "Enable signature verification of FIT uImages" 2589009798dSChris Kuethe depends on DM 259c4beb22fSRuchika Gupta select RSA 260b6cf4439SMasahiro Yamada help 261b6cf4439SMasahiro Yamada This option enables signature verification of FIT uImages, 26294e3c8c4Sgaurav rana using a hash signed and verified using RSA. If 26394e3c8c4Sgaurav rana CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive 264266aa86bSRobert P. J. Day hashing is available using hardware, then the RSA library will use 26573223f0eSSimon Glass it. See doc/uImage.FIT/signature.txt for more details. 26673223f0eSSimon Glass 26773223f0eSSimon Glass WARNING: When relying on signed FIT images with a required signature 26873223f0eSSimon Glass check the legacy image format is disabled by default, so that 26973223f0eSSimon Glass unsigned images cannot be loaded. If a board needs the legacy image 27073223f0eSSimon Glass format support in this case, enable it using 27173223f0eSSimon Glass CONFIG_IMAGE_FORMAT_LEGACY. 27273223f0eSSimon Glass 273266aa86bSRobert P. J. Dayconfig FIT_VERBOSE 274266aa86bSRobert P. J. Day bool "Show verbose messages when FIT images fail" 275266aa86bSRobert P. J. Day help 276266aa86bSRobert P. J. Day Generally a system will have valid FIT images so debug messages 277266aa86bSRobert P. J. Day are a waste of code space. If you are debugging your images then 278266aa86bSRobert P. J. Day you can enable this option to get more verbose information about 279266aa86bSRobert P. J. Day failures. 28051c14cd1STeddy Reed 28173223f0eSSimon Glassconfig FIT_BEST_MATCH 28273223f0eSSimon Glass bool "Select the best match for the kernel device tree" 28373223f0eSSimon Glass help 28473223f0eSSimon Glass When no configuration is explicitly selected, default to the 28573223f0eSSimon Glass one whose fdt's compatibility field best matches that of 28673223f0eSSimon Glass U-Boot itself. A match is considered "best" if it matches the 28773223f0eSSimon Glass most specific compatibility entry of U-Boot's fdt's root node. 28873223f0eSSimon Glass The order of entries in the configuration's fdt is ignored. 28973223f0eSSimon Glass 290266aa86bSRobert P. J. Dayconfig FIT_IMAGE_POST_PROCESS 291266aa86bSRobert P. J. Day bool "Enable post-processing of FIT artifacts after loading by U-Boot" 292266aa86bSRobert P. J. Day depends on TI_SECURE_DEVICE 29373223f0eSSimon Glass help 294266aa86bSRobert P. J. Day Allows doing any sort of manipulation to blobs after they got extracted 295266aa86bSRobert P. J. Day from FIT images like stripping off headers or modifying the size of the 296266aa86bSRobert P. J. Day blob, verification, authentication, decryption etc. in a platform or 297266aa86bSRobert P. J. Day board specific way. In order to use this feature a platform or board- 298266aa86bSRobert P. J. Day specific implementation of board_fit_image_post_process() must be 299266aa86bSRobert P. J. Day provided. Also, anything done during this post-processing step would 300266aa86bSRobert P. J. Day need to be comprehended in how the images were prepared before being 301266aa86bSRobert P. J. Day injected into the FIT creation (i.e. the blobs would have been pre- 302266aa86bSRobert P. J. Day processed before being added to the FIT image). 303266aa86bSRobert P. J. Day 30471139113STom Riniif SPL 30571139113STom Rini 306266aa86bSRobert P. J. Dayconfig SPL_FIT 307266aa86bSRobert P. J. Day bool "Support Flattened Image Tree within SPL" 308266aa86bSRobert P. J. Day depends on SPL 30985c07a5aSAndre Przywara select SPL_OF_LIBFDT 310266aa86bSRobert P. J. Day 311266aa86bSRobert P. J. Dayconfig SPL_FIT_SIGNATURE 312266aa86bSRobert P. J. Day bool "Enable signature verification of FIT firmware within SPL" 313266aa86bSRobert P. J. Day depends on SPL_DM 31485c07a5aSAndre Przywara select SPL_FIT 315266aa86bSRobert P. J. Day select SPL_RSA 316266aa86bSRobert P. J. Day 317266aa86bSRobert P. J. Dayconfig SPL_LOAD_FIT 318266aa86bSRobert P. J. Day bool "Enable SPL loading U-Boot as a FIT" 31985c07a5aSAndre Przywara select SPL_FIT 320266aa86bSRobert P. J. Day help 321266aa86bSRobert P. J. Day Normally with the SPL framework a legacy image is generated as part 322266aa86bSRobert P. J. Day of the build. This contains U-Boot along with information as to 323266aa86bSRobert P. J. Day where it should be loaded. This option instead enables generation 324266aa86bSRobert P. J. Day of a FIT (Flat Image Tree) which provides more flexibility. In 325266aa86bSRobert P. J. Day particular it can handle selecting from multiple device tree 326266aa86bSRobert P. J. Day and passing the correct one to U-Boot. 327266aa86bSRobert P. J. Day 328266aa86bSRobert P. J. Dayconfig SPL_FIT_IMAGE_POST_PROCESS 329266aa86bSRobert P. J. Day bool "Enable post-processing of FIT artifacts after loading by the SPL" 330c12d8b7dSext-vasily.gurevich@vaisala.com depends on SPL_LOAD_FIT 331266aa86bSRobert P. J. Day help 332266aa86bSRobert P. J. Day Allows doing any sort of manipulation to blobs after they got extracted 333266aa86bSRobert P. J. Day from the U-Boot FIT image like stripping off headers or modifying the 334266aa86bSRobert P. J. Day size of the blob, verification, authentication, decryption etc. in a 335266aa86bSRobert P. J. Day platform or board specific way. In order to use this feature a platform 336266aa86bSRobert P. J. Day or board-specific implementation of board_fit_image_post_process() must 337266aa86bSRobert P. J. Day be provided. Also, anything done during this post-processing step would 338266aa86bSRobert P. J. Day need to be comprehended in how the images were prepared before being 339266aa86bSRobert P. J. Day injected into the FIT creation (i.e. the blobs would have been pre- 340266aa86bSRobert P. J. Day processed before being added to the FIT image). 341266aa86bSRobert P. J. Day 3421a12fdc4SAndre Przywaraconfig SPL_FIT_SOURCE 3431a12fdc4SAndre Przywara string ".its source file for U-Boot FIT image" 3441a12fdc4SAndre Przywara depends on SPL_FIT 3451a12fdc4SAndre Przywara help 3461a12fdc4SAndre Przywara Specifies a (platform specific) FIT source file to generate the 3471a12fdc4SAndre Przywara U-Boot FIT image. This could specify further image to load and/or 3481a12fdc4SAndre Przywara execute. 3491a12fdc4SAndre Przywara 3501a12fdc4SAndre Przywaraconfig SPL_FIT_GENERATOR 3511a12fdc4SAndre Przywara string ".its file generator script for U-Boot FIT image" 3521a12fdc4SAndre Przywara depends on SPL_FIT 353d29adf8eSAndre Przywara default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI 3541a12fdc4SAndre Przywara help 3551a12fdc4SAndre Przywara Specifies a (platform specific) script file to generate the FIT 3561a12fdc4SAndre Przywara source file used to build the U-Boot FIT image file. This gets 3571a12fdc4SAndre Przywara passed a list of supported device tree file stub names to 3581a12fdc4SAndre Przywara include in the generated image. 3591a12fdc4SAndre Przywara 36071139113STom Riniendif # SPL 36171139113STom Rini 362266aa86bSRobert P. J. Dayendif # FIT 36373223f0eSSimon Glass 364*002c3234SAlex Kiernanconfig IMAGE_FORMAT_LEGACY 365*002c3234SAlex Kiernan bool "Enable support for the legacy image format" 366*002c3234SAlex Kiernan default y if !FIT_SIGNATURE 367*002c3234SAlex Kiernan help 368*002c3234SAlex Kiernan This option enables the legacy image format. It is enabled by 369*002c3234SAlex Kiernan default for backward compatibility, unless FIT_SIGNATURE is 370*002c3234SAlex Kiernan set where it is disabled so that unsigned images cannot be 371*002c3234SAlex Kiernan loaded. If a board needs the legacy image format support in this 372*002c3234SAlex Kiernan case, enable it here. 373*002c3234SAlex Kiernan 37473223f0eSSimon Glassconfig OF_BOARD_SETUP 37573223f0eSSimon Glass bool "Set up board-specific details in device tree before boot" 37673223f0eSSimon Glass depends on OF_LIBFDT 37773223f0eSSimon Glass help 37873223f0eSSimon Glass This causes U-Boot to call ft_board_setup() before booting into 37973223f0eSSimon Glass the Operating System. This function can set up various 38073223f0eSSimon Glass board-specific information in the device tree for use by the OS. 38173223f0eSSimon Glass The device tree is then passed to the OS. 38273223f0eSSimon Glass 38373223f0eSSimon Glassconfig OF_SYSTEM_SETUP 38473223f0eSSimon Glass bool "Set up system-specific details in device tree before boot" 38573223f0eSSimon Glass depends on OF_LIBFDT 38673223f0eSSimon Glass help 38773223f0eSSimon Glass This causes U-Boot to call ft_system_setup() before booting into 38873223f0eSSimon Glass the Operating System. This function can set up various 38973223f0eSSimon Glass system-specific information in the device tree for use by the OS. 39073223f0eSSimon Glass The device tree is then passed to the OS. 39173223f0eSSimon Glass 39273223f0eSSimon Glassconfig OF_STDOUT_VIA_ALIAS 39373223f0eSSimon Glass bool "Update the device-tree stdout alias from U-Boot" 39473223f0eSSimon Glass depends on OF_LIBFDT 39573223f0eSSimon Glass help 39673223f0eSSimon Glass This uses U-Boot's serial alias from the aliases node to update 39773223f0eSSimon Glass the device tree passed to the OS. The "linux,stdout-path" property 39873223f0eSSimon Glass in the chosen node is set to point to the correct serial node. 39973223f0eSSimon Glass This option currently references CONFIG_CONS_INDEX, which is 40073223f0eSSimon Glass incorrect when used with device tree as this option does not 40173223f0eSSimon Glass exist / should not be used. 402b6cf4439SMasahiro Yamada 40351631259SMasahiro Yamadaconfig SYS_EXTRA_OPTIONS 40451631259SMasahiro Yamada string "Extra Options (DEPRECATED)" 40551631259SMasahiro Yamada help 40651631259SMasahiro Yamada The old configuration infrastructure (= mkconfig + boards.cfg) 407ed36323fSMasahiro Yamada provided the extra options field. If you have something like 40851631259SMasahiro Yamada "HAS_BAR,BAZ=64", the optional options 40951631259SMasahiro Yamada #define CONFIG_HAS 41051631259SMasahiro Yamada #define CONFIG_BAZ 64 41151631259SMasahiro Yamada will be defined in include/config.h. 41251631259SMasahiro Yamada This option was prepared for the smooth migration from the old 41351631259SMasahiro Yamada configuration to Kconfig. Since this option will be removed sometime, 41451631259SMasahiro Yamada new boards should not use this option. 41551631259SMasahiro Yamada 4167f7563ceSMasahiro Yamadaconfig SYS_TEXT_BASE 417278b90ceSTom Rini depends on !NIOS2 && !XTENSA 418484cce0dSBen Stoltz depends on !EFI_APP 419278b90ceSTom Rini default 0x80800000 if ARCH_OMAP2PLUS 420341c0586SAndre Przywara default 0x4a000000 if ARCH_SUNXI && !MACH_SUN9I && !MACH_SUN8I_V3S 421341c0586SAndre Przywara default 0x2a000000 if ARCH_SUNXI && MACH_SUN9I 422341c0586SAndre Przywara default 0x42e00000 if ARCH_SUNXI && MACH_SUN8I_V3S 4237f7563ceSMasahiro Yamada hex "Text Base" 4247f7563ceSMasahiro Yamada help 425278b90ceSTom Rini The address in memory that U-Boot will be running from, initially. 4267f7563ceSMasahiro Yamada 4277e0ed13fSAdam Ford 428eba3fbd6SAndreas Dannenberg 42933d88183SAlexey Brodkinconfig SYS_CLK_FREQ 430e71b422bSIain Paton depends on ARC || ARCH_SUNXI 43133d88183SAlexey Brodkin int "CPU clock frequency" 43233d88183SAlexey Brodkin help 43333d88183SAlexey Brodkin TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture 43433d88183SAlexey Brodkin 43563c09417SMasahiro Yamadaconfig ARCH_FIXUP_FDT_MEMORY 43663c09417SMasahiro Yamada bool "Enable arch_fixup_memory_banks() call" 437e2f88dfdSMichal Simek default y 438e2f88dfdSMichal Simek help 439e2f88dfdSMichal Simek Enable FDT memory map syncup before OS boot. This feature can be 440e2f88dfdSMichal Simek used for booting OS with different memory setup where the part of 441e2f88dfdSMichal Simek the memory location should be used for different purpose. 442e2f88dfdSMichal Simek 443e91c3c33SMasahiro Yamadaendmenu # Boot images 44451631259SMasahiro Yamada 4454db98d3dSEmmanuel Vadotsource "api/Kconfig" 4464db98d3dSEmmanuel Vadot 447ed36323fSMasahiro Yamadasource "common/Kconfig" 448ed36323fSMasahiro Yamada 44972a8cf8dSSimon Glasssource "cmd/Kconfig" 45072a8cf8dSSimon Glass 451e274ef6bSPatrick Delaunaysource "disk/Kconfig" 452e274ef6bSPatrick Delaunay 453783e6a72SMasahiro Yamadasource "dts/Kconfig" 454783e6a72SMasahiro Yamada 4550649cd0dSSimon Glasssource "env/Kconfig" 4560649cd0dSSimon Glass 457ed36323fSMasahiro Yamadasource "net/Kconfig" 458ed36323fSMasahiro Yamada 459ed36323fSMasahiro Yamadasource "drivers/Kconfig" 460ed36323fSMasahiro Yamada 461ed36323fSMasahiro Yamadasource "fs/Kconfig" 462ed36323fSMasahiro Yamada 463ed36323fSMasahiro Yamadasource "lib/Kconfig" 4641967982aSSimon Glass 4651967982aSSimon Glasssource "test/Kconfig" 466