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 629f823615SHans de Goedeconfig DISTRO_DEFAULTS 639f823615SHans de Goede bool "Select defaults suitable for booting general purpose Linux distributions" 643337e3afSTom Rini default y if ARCH_SUNXI || TEGRA 65b99ebaf9SAlexander Graf default y if ARCH_LS2080A 6670b8bd7dSAndreas Färber default y if ARCH_MESON 677bdedf11SRomain Perier default y if ARCH_ROCKCHIP 689f823615SHans de Goede default n 69b6251db8STom Rini imply USE_BOOTCOMMAND 70a391d500STom Rini select CMD_BOOTZ if ARM && !ARM64 7126959271SMasahiro Yamada select CMD_BOOTI if ARM64 72ba628855SJoe Hershberger select CMD_DHCP if CMD_NET 73ba628855SJoe Hershberger select CMD_PING if CMD_NET 74*092f2f35SJoe Hershberger select CMD_PXE if NET 759f823615SHans de Goede select CMD_EXT2 769f823615SHans de Goede select CMD_EXT4 779f823615SHans de Goede select CMD_FAT 789f823615SHans de Goede select CMD_FS_GENERIC 793b3ea2c5SMichal Simek imply CMD_MII if NET 80fa2c1467STom Rini select CMD_PART if PARTITIONS 819f823615SHans de Goede select HUSH_PARSER 82d021e942SAdam Ford select CMDLINE_EDITING 83d021e942SAdam Ford select AUTO_COMPLETE 84d021e942SAdam Ford select SYS_LONGHELP 85d021e942SAdam Ford select SUPPORT_RAW_INITRD 86d021e942SAdam Ford select ENV_VARS_UBOOT_CONFIG 879f823615SHans de Goede help 889f823615SHans de Goede Select this to enable various options and commands which are suitable 899f823615SHans de Goede for building u-boot for booting general purpose Linux distributions. 909f823615SHans de Goede 91d021e942SAdam Fordconfig ENV_VARS_UBOOT_CONFIG 92d021e942SAdam Ford bool "Add arch, board, vendor and soc variables to default environment" 93d021e942SAdam Ford help 94d021e942SAdam Ford Define this in order to add variables describing the 95d021e942SAdam Ford U-Boot build configuration to the default environment. 96d021e942SAdam Ford These will be named arch, cpu, board, vendor, and soc. 97d021e942SAdam Ford Enabling this option will cause the following to be defined: 98d021e942SAdam Ford - CONFIG_SYS_ARCH 99d021e942SAdam Ford - CONFIG_SYS_CPU 100d021e942SAdam Ford - CONFIG_SYS_BOARD 101d021e942SAdam Ford - CONFIG_SYS_VENDOR 102d021e942SAdam Ford - CONFIG_SYS_SOC 103d021e942SAdam Ford 104405fc830SDerald D. Woodsconfig SYS_BOOT_GET_CMDLINE 105405fc830SDerald D. Woods bool "Enable kernel command line setup" 106405fc830SDerald D. Woods help 107405fc830SDerald D. Woods Enables allocating and saving kernel cmdline in space between 108405fc830SDerald D. Woods "bootm_low" and "bootm_low" + BOOTMAPSZ. 109405fc830SDerald D. Woods 110405fc830SDerald D. Woodsconfig SYS_BOOT_GET_KBD 111405fc830SDerald D. Woods bool "Enable kernel board information setup" 112405fc830SDerald D. Woods help 113405fc830SDerald D. Woods Enables allocating and saving a kernel copy of the bd_info in 114405fc830SDerald D. Woods space between "bootm_low" and "bootm_low" + BOOTMAPSZ. 115405fc830SDerald D. Woods 116b724bd7dSSimon Glassconfig SYS_MALLOC_F 117b724bd7dSSimon Glass bool "Enable malloc() pool before relocation" 118326a6823SMasahiro Yamada default y if DM 119b724bd7dSSimon Glass help 12059d7c34bSRobert P. J. Day Before relocation, memory is very limited on many platforms. Still, 121b724bd7dSSimon Glass we can provide a small malloc() pool if needed. Driver model in 122b724bd7dSSimon Glass particular needs this to operate, so that it can allocate the 123b724bd7dSSimon Glass initial serial device and any others that are needed. 124b724bd7dSSimon Glass 125b724bd7dSSimon Glassconfig SYS_MALLOC_F_LEN 126b724bd7dSSimon Glass hex "Size of malloc() pool before relocation" 127b724bd7dSSimon Glass depends on SYS_MALLOC_F 128b724bd7dSSimon Glass default 0x400 129b724bd7dSSimon Glass help 13059d7c34bSRobert P. J. Day Before relocation, memory is very limited on many platforms. Still, 131b724bd7dSSimon Glass we can provide a small malloc() pool if needed. Driver model in 132b724bd7dSSimon Glass particular needs this to operate, so that it can allocate the 133b724bd7dSSimon Glass initial serial device and any others that are needed. 134b724bd7dSSimon Glass 135f1896c45SAndy Yanconfig SPL_SYS_MALLOC_F_LEN 136ae2cee2eSPhilipp Tomsich hex "Size of malloc() pool in SPL before relocation" 137ae2cee2eSPhilipp Tomsich depends on SYS_MALLOC_F 138ae2cee2eSPhilipp Tomsich default SYS_MALLOC_F_LEN 139ae2cee2eSPhilipp Tomsich help 140ae2cee2eSPhilipp Tomsich Before relocation, memory is very limited on many platforms. Still, 141ae2cee2eSPhilipp Tomsich we can provide a small malloc() pool if needed. Driver model in 142ae2cee2eSPhilipp Tomsich particular needs this to operate, so that it can allocate the 143ae2cee2eSPhilipp Tomsich initial serial device and any others that are needed. 144ae2cee2eSPhilipp Tomsich 145ae2cee2eSPhilipp Tomsichconfig TPL_SYS_MALLOC_F_LEN 146ae2cee2eSPhilipp Tomsich hex "Size of malloc() pool in TPL before relocation" 147f1896c45SAndy Yan depends on SYS_MALLOC_F 148f1896c45SAndy Yan default SYS_MALLOC_F_LEN 149f1896c45SAndy Yan help 150f1896c45SAndy Yan Before relocation, memory is very limited on many platforms. Still, 151f1896c45SAndy Yan we can provide a small malloc() pool if needed. Driver model in 152f1896c45SAndy Yan particular needs this to operate, so that it can allocate the 153f1896c45SAndy Yan initial serial device and any others that are needed. 154f1896c45SAndy Yan 1551bf0979fSTom Rinimenuconfig EXPERT 1561bf0979fSTom Rini bool "Configure standard U-Boot features (expert users)" 1570aa8a4adSPrzemyslaw Marczak default y 1581bf0979fSTom Rini help 1591bf0979fSTom Rini This option allows certain base U-Boot options and settings 1601bf0979fSTom Rini to be disabled or tweaked. This is for specialized 1611bf0979fSTom Rini environments which can tolerate a "non-standard" U-Boot. 16259d7c34bSRobert P. J. Day Use this only if you really know what you are doing. 1631bf0979fSTom Rini 1640aa8a4adSPrzemyslaw Marczakif EXPERT 1650aa8a4adSPrzemyslaw Marczak config SYS_MALLOC_CLEAR_ON_INIT 1660aa8a4adSPrzemyslaw Marczak bool "Init with zeros the memory reserved for malloc (slow)" 1670aa8a4adSPrzemyslaw Marczak default y 1680aa8a4adSPrzemyslaw Marczak help 1690aa8a4adSPrzemyslaw Marczak This setting is enabled by default. The reserved malloc 1700aa8a4adSPrzemyslaw Marczak memory is initialized with zeros, so first malloc calls 1710aa8a4adSPrzemyslaw Marczak will return the pointer to the zeroed memory. But this 1720aa8a4adSPrzemyslaw Marczak slows the boot time. 1730aa8a4adSPrzemyslaw Marczak 1740aa8a4adSPrzemyslaw Marczak It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN 1750aa8a4adSPrzemyslaw Marczak value, has more than few MiB, e.g. when uses bzip2 or bmp logo. 1760aa8a4adSPrzemyslaw Marczak Then the boot time can be significantly reduced. 1770aa8a4adSPrzemyslaw Marczak Warning: 1780aa8a4adSPrzemyslaw Marczak When disabling this, please check if malloc calls, maybe 17959d7c34bSRobert P. J. Day should be replaced by calloc - if one expects zeroed memory. 180022885cbSSimon Glass 181022885cbSSimon Glassconfig TOOLS_DEBUG 182022885cbSSimon Glass bool "Enable debug information for tools" 183022885cbSSimon Glass help 184022885cbSSimon Glass Enable generation of debug information for tools such as mkimage. 185022885cbSSimon Glass This can be used for debugging purposes. With debug information 186022885cbSSimon Glass it is possible to set breakpoints on particular lines, single-step 187022885cbSSimon Glass debug through the source code, etc. 188022885cbSSimon Glass 189266aa86bSRobert P. J. Dayendif # EXPERT 190bb6b142fSMasahiro Yamada 191bb6b142fSMasahiro Yamadaconfig PHYS_64BIT 192bb6b142fSMasahiro Yamada bool "64bit physical address support" 193bb6b142fSMasahiro Yamada help 194bb6b142fSMasahiro Yamada Say Y here to support 64bit physical memory address. 195bb6b142fSMasahiro Yamada This can be used not only for 64bit SoCs, but also for 196bb6b142fSMasahiro Yamada large physical address extention on 32bit SoCs. 197bb6b142fSMasahiro Yamada 198871aa41dSHeinrich Schuchardtconfig BUILD_ROM 199871aa41dSHeinrich Schuchardt bool "Build U-Boot as BIOS replacement" 200871aa41dSHeinrich Schuchardt depends on X86 201871aa41dSHeinrich Schuchardt help 202871aa41dSHeinrich Schuchardt This option allows to build a ROM version of U-Boot. 203871aa41dSHeinrich Schuchardt The build process generally requires several binary blobs 204871aa41dSHeinrich Schuchardt which are not shipped in the U-Boot source tree. 205871aa41dSHeinrich Schuchardt Please, see doc/README.x86 for details. 206871aa41dSHeinrich Schuchardt 20740ad4c4bSMasahiro Yamadaendmenu # General setup 20840ad4c4bSMasahiro Yamada 209e91c3c33SMasahiro Yamadamenu "Boot images" 210e91c3c33SMasahiro Yamada 21148f6232eSTom Riniconfig ANDROID_BOOT_IMAGE 21248f6232eSTom Rini bool "Enable support for Android Boot Images" 21348f6232eSTom Rini default y if FASTBOOT 21448f6232eSTom Rini help 21548f6232eSTom Rini This enables support for booting images which use the Android 21648f6232eSTom Rini image format header. 21748f6232eSTom Rini 218b6cf4439SMasahiro Yamadaconfig FIT 219b6cf4439SMasahiro Yamada bool "Support Flattened Image Tree" 220aeb9c53cSAndre Przywara select MD5 221089df18bSTom Rini select SHA1 222b6cf4439SMasahiro Yamada help 223266aa86bSRobert P. J. Day This option allows you to boot the new uImage structure, 224b6cf4439SMasahiro Yamada Flattened Image Tree. FIT is formally a FDT, which can include 225b6cf4439SMasahiro Yamada images of various types (kernel, FDT blob, ramdisk, etc.) 226b6cf4439SMasahiro Yamada in a single blob. To boot this new uImage structure, 2271f9ac4a4SIgor Grinberg pass the address of the blob to the "bootm" command. 22873223f0eSSimon Glass FIT is very flexible, supporting compression, multiple images, 22973223f0eSSimon Glass multiple configurations, verification through hashing and also 230266aa86bSRobert P. J. Day verified boot (secure boot using RSA). 231b6cf4439SMasahiro Yamada 232266aa86bSRobert P. J. Dayif FIT 233b6cf4439SMasahiro Yamada 2340db7f685STom Riniconfig FIT_ENABLE_SHA256_SUPPORT 2350db7f685STom Rini bool "Support SHA256 checksum of FIT image contents" 236089df18bSTom Rini select SHA256 2370db7f685STom Rini default y 2380db7f685STom Rini help 2390db7f685STom Rini Enable this to support SHA256 checksum of FIT image contents. A 2400db7f685STom Rini SHA256 checksum is a 256-bit (32-byte) hash value used to check that 2410db7f685STom Rini the image contents have not been corrupted. SHA256 is recommended 2420db7f685STom Rini for use in secure applications since (as at 2016) there is no known 2430db7f685STom Rini feasible attack that could produce a 'collision' with differing 2440db7f685STom Rini input data. Use this for the highest security. Note that only the 2450db7f685STom Rini SHA256 variant is supported: SHA512 and others are not currently 2460db7f685STom Rini supported in U-Boot. 2470db7f685STom Rini 248b6cf4439SMasahiro Yamadaconfig FIT_SIGNATURE 249c4beb22fSRuchika Gupta bool "Enable signature verification of FIT uImages" 2509009798dSChris Kuethe depends on DM 251c4beb22fSRuchika Gupta select RSA 252b6cf4439SMasahiro Yamada help 253b6cf4439SMasahiro Yamada This option enables signature verification of FIT uImages, 25494e3c8c4Sgaurav rana using a hash signed and verified using RSA. If 25594e3c8c4Sgaurav rana CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive 256266aa86bSRobert P. J. Day hashing is available using hardware, then the RSA library will use 25773223f0eSSimon Glass it. See doc/uImage.FIT/signature.txt for more details. 25873223f0eSSimon Glass 25973223f0eSSimon Glass WARNING: When relying on signed FIT images with a required signature 26073223f0eSSimon Glass check the legacy image format is disabled by default, so that 26173223f0eSSimon Glass unsigned images cannot be loaded. If a board needs the legacy image 26273223f0eSSimon Glass format support in this case, enable it using 26373223f0eSSimon Glass CONFIG_IMAGE_FORMAT_LEGACY. 26473223f0eSSimon Glass 265266aa86bSRobert P. J. Dayconfig FIT_VERBOSE 266266aa86bSRobert P. J. Day bool "Show verbose messages when FIT images fail" 267266aa86bSRobert P. J. Day help 268266aa86bSRobert P. J. Day Generally a system will have valid FIT images so debug messages 269266aa86bSRobert P. J. Day are a waste of code space. If you are debugging your images then 270266aa86bSRobert P. J. Day you can enable this option to get more verbose information about 271266aa86bSRobert P. J. Day failures. 27251c14cd1STeddy Reed 27373223f0eSSimon Glassconfig FIT_BEST_MATCH 27473223f0eSSimon Glass bool "Select the best match for the kernel device tree" 27573223f0eSSimon Glass help 27673223f0eSSimon Glass When no configuration is explicitly selected, default to the 27773223f0eSSimon Glass one whose fdt's compatibility field best matches that of 27873223f0eSSimon Glass U-Boot itself. A match is considered "best" if it matches the 27973223f0eSSimon Glass most specific compatibility entry of U-Boot's fdt's root node. 28073223f0eSSimon Glass The order of entries in the configuration's fdt is ignored. 28173223f0eSSimon Glass 282266aa86bSRobert P. J. Dayconfig FIT_IMAGE_POST_PROCESS 283266aa86bSRobert P. J. Day bool "Enable post-processing of FIT artifacts after loading by U-Boot" 284266aa86bSRobert P. J. Day depends on TI_SECURE_DEVICE 28573223f0eSSimon Glass help 286266aa86bSRobert P. J. Day Allows doing any sort of manipulation to blobs after they got extracted 287266aa86bSRobert P. J. Day from FIT images like stripping off headers or modifying the size of the 288266aa86bSRobert P. J. Day blob, verification, authentication, decryption etc. in a platform or 289266aa86bSRobert P. J. Day board specific way. In order to use this feature a platform or board- 290266aa86bSRobert P. J. Day specific implementation of board_fit_image_post_process() must be 291266aa86bSRobert P. J. Day provided. Also, anything done during this post-processing step would 292266aa86bSRobert P. J. Day need to be comprehended in how the images were prepared before being 293266aa86bSRobert P. J. Day injected into the FIT creation (i.e. the blobs would have been pre- 294266aa86bSRobert P. J. Day processed before being added to the FIT image). 295266aa86bSRobert P. J. Day 29671139113STom Riniif SPL 29771139113STom Rini 298266aa86bSRobert P. J. Dayconfig SPL_FIT 299266aa86bSRobert P. J. Day bool "Support Flattened Image Tree within SPL" 300266aa86bSRobert P. J. Day depends on SPL 30185c07a5aSAndre Przywara select SPL_OF_LIBFDT 302266aa86bSRobert P. J. Day 303266aa86bSRobert P. J. Dayconfig SPL_FIT_SIGNATURE 304266aa86bSRobert P. J. Day bool "Enable signature verification of FIT firmware within SPL" 305266aa86bSRobert P. J. Day depends on SPL_DM 30685c07a5aSAndre Przywara select SPL_FIT 307266aa86bSRobert P. J. Day select SPL_RSA 308266aa86bSRobert P. J. Day 309266aa86bSRobert P. J. Dayconfig SPL_LOAD_FIT 310266aa86bSRobert P. J. Day bool "Enable SPL loading U-Boot as a FIT" 31185c07a5aSAndre Przywara select SPL_FIT 312266aa86bSRobert P. J. Day help 313266aa86bSRobert P. J. Day Normally with the SPL framework a legacy image is generated as part 314266aa86bSRobert P. J. Day of the build. This contains U-Boot along with information as to 315266aa86bSRobert P. J. Day where it should be loaded. This option instead enables generation 316266aa86bSRobert P. J. Day of a FIT (Flat Image Tree) which provides more flexibility. In 317266aa86bSRobert P. J. Day particular it can handle selecting from multiple device tree 318266aa86bSRobert P. J. Day and passing the correct one to U-Boot. 319266aa86bSRobert P. J. Day 320266aa86bSRobert P. J. Dayconfig SPL_FIT_IMAGE_POST_PROCESS 321266aa86bSRobert P. J. Day bool "Enable post-processing of FIT artifacts after loading by the SPL" 322c12d8b7dSext-vasily.gurevich@vaisala.com depends on SPL_LOAD_FIT 323266aa86bSRobert P. J. Day help 324266aa86bSRobert P. J. Day Allows doing any sort of manipulation to blobs after they got extracted 325266aa86bSRobert P. J. Day from the U-Boot FIT image like stripping off headers or modifying the 326266aa86bSRobert P. J. Day size of the blob, verification, authentication, decryption etc. in a 327266aa86bSRobert P. J. Day platform or board specific way. In order to use this feature a platform 328266aa86bSRobert P. J. Day or board-specific implementation of board_fit_image_post_process() must 329266aa86bSRobert P. J. Day be provided. Also, anything done during this post-processing step would 330266aa86bSRobert P. J. Day need to be comprehended in how the images were prepared before being 331266aa86bSRobert P. J. Day injected into the FIT creation (i.e. the blobs would have been pre- 332266aa86bSRobert P. J. Day processed before being added to the FIT image). 333266aa86bSRobert P. J. Day 3341a12fdc4SAndre Przywaraconfig SPL_FIT_SOURCE 3351a12fdc4SAndre Przywara string ".its source file for U-Boot FIT image" 3361a12fdc4SAndre Przywara depends on SPL_FIT 3371a12fdc4SAndre Przywara help 3381a12fdc4SAndre Przywara Specifies a (platform specific) FIT source file to generate the 3391a12fdc4SAndre Przywara U-Boot FIT image. This could specify further image to load and/or 3401a12fdc4SAndre Przywara execute. 3411a12fdc4SAndre Przywara 3421a12fdc4SAndre Przywaraconfig SPL_FIT_GENERATOR 3431a12fdc4SAndre Przywara string ".its file generator script for U-Boot FIT image" 3441a12fdc4SAndre Przywara depends on SPL_FIT 345d29adf8eSAndre Przywara default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI 3461a12fdc4SAndre Przywara help 3471a12fdc4SAndre Przywara Specifies a (platform specific) script file to generate the FIT 3481a12fdc4SAndre Przywara source file used to build the U-Boot FIT image file. This gets 3491a12fdc4SAndre Przywara passed a list of supported device tree file stub names to 3501a12fdc4SAndre Przywara include in the generated image. 3511a12fdc4SAndre Przywara 35271139113STom Riniendif # SPL 35371139113STom Rini 354266aa86bSRobert P. J. Dayendif # FIT 35573223f0eSSimon Glass 35673223f0eSSimon Glassconfig OF_BOARD_SETUP 35773223f0eSSimon Glass bool "Set up board-specific details in device tree before boot" 35873223f0eSSimon Glass depends on OF_LIBFDT 35973223f0eSSimon Glass help 36073223f0eSSimon Glass This causes U-Boot to call ft_board_setup() before booting into 36173223f0eSSimon Glass the Operating System. This function can set up various 36273223f0eSSimon Glass board-specific information in the device tree for use by the OS. 36373223f0eSSimon Glass The device tree is then passed to the OS. 36473223f0eSSimon Glass 36573223f0eSSimon Glassconfig OF_SYSTEM_SETUP 36673223f0eSSimon Glass bool "Set up system-specific details in device tree before boot" 36773223f0eSSimon Glass depends on OF_LIBFDT 36873223f0eSSimon Glass help 36973223f0eSSimon Glass This causes U-Boot to call ft_system_setup() before booting into 37073223f0eSSimon Glass the Operating System. This function can set up various 37173223f0eSSimon Glass system-specific information in the device tree for use by the OS. 37273223f0eSSimon Glass The device tree is then passed to the OS. 37373223f0eSSimon Glass 37473223f0eSSimon Glassconfig OF_STDOUT_VIA_ALIAS 37573223f0eSSimon Glass bool "Update the device-tree stdout alias from U-Boot" 37673223f0eSSimon Glass depends on OF_LIBFDT 37773223f0eSSimon Glass help 37873223f0eSSimon Glass This uses U-Boot's serial alias from the aliases node to update 37973223f0eSSimon Glass the device tree passed to the OS. The "linux,stdout-path" property 38073223f0eSSimon Glass in the chosen node is set to point to the correct serial node. 38173223f0eSSimon Glass This option currently references CONFIG_CONS_INDEX, which is 38273223f0eSSimon Glass incorrect when used with device tree as this option does not 38373223f0eSSimon Glass exist / should not be used. 384b6cf4439SMasahiro Yamada 38551631259SMasahiro Yamadaconfig SYS_EXTRA_OPTIONS 38651631259SMasahiro Yamada string "Extra Options (DEPRECATED)" 38751631259SMasahiro Yamada help 38851631259SMasahiro Yamada The old configuration infrastructure (= mkconfig + boards.cfg) 389ed36323fSMasahiro Yamada provided the extra options field. If you have something like 39051631259SMasahiro Yamada "HAS_BAR,BAZ=64", the optional options 39151631259SMasahiro Yamada #define CONFIG_HAS 39251631259SMasahiro Yamada #define CONFIG_BAZ 64 39351631259SMasahiro Yamada will be defined in include/config.h. 39451631259SMasahiro Yamada This option was prepared for the smooth migration from the old 39551631259SMasahiro Yamada configuration to Kconfig. Since this option will be removed sometime, 39651631259SMasahiro Yamada new boards should not use this option. 39751631259SMasahiro Yamada 3987f7563ceSMasahiro Yamadaconfig SYS_TEXT_BASE 399278b90ceSTom Rini depends on !NIOS2 && !XTENSA 400484cce0dSBen Stoltz depends on !EFI_APP 401278b90ceSTom Rini default 0x80800000 if ARCH_OMAP2PLUS 402341c0586SAndre Przywara default 0x4a000000 if ARCH_SUNXI && !MACH_SUN9I && !MACH_SUN8I_V3S 403341c0586SAndre Przywara default 0x2a000000 if ARCH_SUNXI && MACH_SUN9I 404341c0586SAndre Przywara default 0x42e00000 if ARCH_SUNXI && MACH_SUN8I_V3S 4057f7563ceSMasahiro Yamada hex "Text Base" 4067f7563ceSMasahiro Yamada help 407278b90ceSTom Rini The address in memory that U-Boot will be running from, initially. 4087f7563ceSMasahiro Yamada 4097e0ed13fSAdam Ford 410eba3fbd6SAndreas Dannenberg 41133d88183SAlexey Brodkinconfig SYS_CLK_FREQ 412e71b422bSIain Paton depends on ARC || ARCH_SUNXI 41333d88183SAlexey Brodkin int "CPU clock frequency" 41433d88183SAlexey Brodkin help 41533d88183SAlexey Brodkin TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture 41633d88183SAlexey Brodkin 41763c09417SMasahiro Yamadaconfig ARCH_FIXUP_FDT_MEMORY 41863c09417SMasahiro Yamada bool "Enable arch_fixup_memory_banks() call" 419e2f88dfdSMichal Simek default y 420e2f88dfdSMichal Simek help 421e2f88dfdSMichal Simek Enable FDT memory map syncup before OS boot. This feature can be 422e2f88dfdSMichal Simek used for booting OS with different memory setup where the part of 423e2f88dfdSMichal Simek the memory location should be used for different purpose. 424e2f88dfdSMichal Simek 425e91c3c33SMasahiro Yamadaendmenu # Boot images 42651631259SMasahiro Yamada 4274db98d3dSEmmanuel Vadotsource "api/Kconfig" 4284db98d3dSEmmanuel Vadot 429ed36323fSMasahiro Yamadasource "common/Kconfig" 430ed36323fSMasahiro Yamada 43172a8cf8dSSimon Glasssource "cmd/Kconfig" 43272a8cf8dSSimon Glass 433e274ef6bSPatrick Delaunaysource "disk/Kconfig" 434e274ef6bSPatrick Delaunay 435783e6a72SMasahiro Yamadasource "dts/Kconfig" 436783e6a72SMasahiro Yamada 4370649cd0dSSimon Glasssource "env/Kconfig" 4380649cd0dSSimon Glass 439ed36323fSMasahiro Yamadasource "net/Kconfig" 440ed36323fSMasahiro Yamada 441ed36323fSMasahiro Yamadasource "drivers/Kconfig" 442ed36323fSMasahiro Yamada 443ed36323fSMasahiro Yamadasource "fs/Kconfig" 444ed36323fSMasahiro Yamada 445ed36323fSMasahiro Yamadasource "lib/Kconfig" 4461967982aSSimon Glass 4471967982aSSimon Glasssource "test/Kconfig" 448