1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5mainmenu "U-Boot $UBOOTVERSION Configuration" 6 7config UBOOTVERSION 8 string 9 option env="UBOOTVERSION" 10 11config KCONFIG_OBJDIR 12 string 13 option env="KCONFIG_OBJDIR" 14 15menu "General setup" 16 17config LOCALVERSION 18 string "Local version - append to U-Boot release" 19 depends on !SPL_BUILD 20 help 21 Append an extra string to the end of your U-Boot version. 22 This will show up on your boot log, for example. 23 The string you set here will be appended after the contents of 24 any files with a filename matching localversion* in your 25 object and source tree, in that order. Your total string can 26 be a maximum of 64 characters. 27 28config LOCALVERSION_AUTO 29 bool "Automatically append version information to the version string" 30 depends on !SPL_BUILD 31 default y 32 help 33 This will try to automatically determine if the current tree is a 34 release tree by looking for git tags that belong to the current 35 top of tree revision. 36 37 A string of the format -gxxxxxxxx will be added to the localversion 38 if a git-based tree is found. The string generated by this will be 39 appended after any matching localversion* files, and after the value 40 set in CONFIG_LOCALVERSION. 41 42 (The actual string used here is the first eight characters produced 43 by running the command: 44 45 $ git rev-parse --verify HEAD 46 47 which is done within the script "scripts/setlocalversion".) 48 49config CC_OPTIMIZE_FOR_SIZE 50 bool "Optimize for size" 51 depends on !SPL_BUILD 52 default y 53 help 54 Enabling this option will pass "-Os" instead of "-O2" to gcc 55 resulting in a smaller U-Boot image. 56 57 This option is enabled by default for U-Boot. 58 59menuconfig EXPERT 60 bool "Configure standard U-Boot features (expert users)" 61 help 62 This option allows certain base U-Boot options and settings 63 to be disabled or tweaked. This is for specialized 64 environments which can tolerate a "non-standard" U-Boot. 65 Only use this if you really know what you are doing. 66 67endmenu # General setup 68 69menu "Boot images" 70 71config SPL_BUILD 72 bool 73 depends on $KCONFIG_OBJDIR="spl" || $KCONFIG_OBJDIR="tpl" 74 default y 75 76config TPL_BUILD 77 bool 78 depends on $KCONFIG_OBJDIR="tpl" 79 default y 80 81config SUPPORT_SPL 82 bool 83 84config SUPPORT_TPL 85 bool 86 87config SPL 88 bool 89 depends on SUPPORT_SPL 90 prompt "Enable SPL" if !SPL_BUILD 91 default y if SPL_BUILD 92 help 93 If you want to build SPL as well as the normal image, say Y. 94 95config TPL 96 bool 97 depends on SPL && SUPPORT_TPL 98 prompt "Enable TPL" if !SPL_BUILD 99 default y if TPL_BUILD 100 default n 101 help 102 If you want to build TPL as well as the normal image and SPL, say Y. 103 104config FIT 105 bool "Support Flattened Image Tree" 106 depends on !SPL_BUILD 107 help 108 This option allows to boot the new uImage structrure, 109 Flattened Image Tree. FIT is formally a FDT, which can include 110 images of various types (kernel, FDT blob, ramdisk, etc.) 111 in a single blob. To boot this new uImage structure, 112 pass the the address of the blob to the "bootm" command. 113 114config FIT_VERBOSE 115 bool "Display verbose messages on FIT boot" 116 depends on FIT 117 118config FIT_SIGNATURE 119 bool "Enable signature verification of FIT uImages" 120 depends on FIT 121 select RSA 122 help 123 This option enables signature verification of FIT uImages, 124 using a hash signed and verified using RSA. 125 See doc/uImage.FIT/signature.txt for more details. 126 127config SYS_EXTRA_OPTIONS 128 string "Extra Options (DEPRECATED)" 129 depends on !SPL_BUILD 130 help 131 The old configuration infrastructure (= mkconfig + boards.cfg) 132 provided the extra options field. If you have something like 133 "HAS_BAR,BAZ=64", the optional options 134 #define CONFIG_HAS 135 #define CONFIG_BAZ 64 136 will be defined in include/config.h. 137 This option was prepared for the smooth migration from the old 138 configuration to Kconfig. Since this option will be removed sometime, 139 new boards should not use this option. 140 141config SYS_TEXT_BASE 142 depends on SPARC 143 hex "Text Base" 144 help 145 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture 146 147config SYS_CLK_FREQ 148 depends on ARC 149 int "CPU clock frequency" 150 help 151 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture 152 153endmenu # Boot images 154 155source "arch/Kconfig" 156 157source "common/Kconfig" 158 159source "dts/Kconfig" 160 161source "net/Kconfig" 162 163source "drivers/Kconfig" 164 165source "fs/Kconfig" 166 167source "lib/Kconfig" 168