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 11# Allow defaults in arch-specific code to override any given here 12source "arch/Kconfig" 13 14menu "General setup" 15 16config LOCALVERSION 17 string "Local version - append to U-Boot release" 18 depends on !SPL_BUILD 19 help 20 Append an extra string to the end of your U-Boot version. 21 This will show up on your boot log, for example. 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 27config LOCALVERSION_AUTO 28 bool "Automatically append version information to the version string" 29 depends on !SPL_BUILD 30 default y 31 help 32 This will try to automatically determine if the current tree is a 33 release tree by looking for git tags that belong to the current 34 top of tree revision. 35 36 A string of the format -gxxxxxxxx will be added to the localversion 37 if a git-based tree is found. The string generated by this will be 38 appended after any matching localversion* files, and after the value 39 set in CONFIG_LOCALVERSION. 40 41 (The actual string used here is the first eight characters produced 42 by running the command: 43 44 $ git rev-parse --verify HEAD 45 46 which is done within the script "scripts/setlocalversion".) 47 48config CC_OPTIMIZE_FOR_SIZE 49 bool "Optimize for size" 50 depends on !SPL_BUILD 51 default y 52 help 53 Enabling this option will pass "-Os" instead of "-O2" to gcc 54 resulting in a smaller U-Boot image. 55 56 This option is enabled by default for U-Boot. 57 58config SYS_MALLOC_F 59 bool "Enable malloc() pool before relocation" 60 default 0x400 61 help 62 Before relocation memory is very limited on many platforms. Still, 63 we can provide a small malloc() pool if needed. Driver model in 64 particular needs this to operate, so that it can allocate the 65 initial serial device and any others that are needed. 66 67config SYS_MALLOC_F_LEN 68 hex "Size of malloc() pool before relocation" 69 depends on SYS_MALLOC_F 70 default 0x400 71 help 72 Before relocation memory is very limited on many platforms. Still, 73 we can provide a small malloc() pool if needed. Driver model in 74 particular needs this to operate, so that it can allocate the 75 initial serial device and any others that are needed. 76 77menuconfig EXPERT 78 bool "Configure standard U-Boot features (expert users)" 79 help 80 This option allows certain base U-Boot options and settings 81 to be disabled or tweaked. This is for specialized 82 environments which can tolerate a "non-standard" U-Boot. 83 Only use this if you really know what you are doing. 84 85endmenu # General setup 86 87menu "Boot images" 88 89config SUPPORT_SPL 90 bool 91 92config SUPPORT_TPL 93 bool 94 95config SPL 96 bool 97 depends on SUPPORT_SPL 98 prompt "Enable SPL" if !SPL_BUILD 99 default y if SPL_BUILD 100 help 101 If you want to build SPL as well as the normal image, say Y. 102 103config TPL 104 bool 105 depends on SPL && SUPPORT_TPL 106 prompt "Enable TPL" if !SPL_BUILD 107 default y if TPL_BUILD 108 default n 109 help 110 If you want to build TPL as well as the normal image and SPL, say Y. 111 112config FIT 113 bool "Support Flattened Image Tree" 114 depends on !SPL_BUILD 115 help 116 This option allows to boot the new uImage structrure, 117 Flattened Image Tree. FIT is formally a FDT, which can include 118 images of various types (kernel, FDT blob, ramdisk, etc.) 119 in a single blob. To boot this new uImage structure, 120 pass the the address of the blob to the "bootm" command. 121 122config FIT_VERBOSE 123 bool "Display verbose messages on FIT boot" 124 depends on FIT 125 126config FIT_SIGNATURE 127 bool "Enable signature verification of FIT uImages" 128 depends on FIT 129 depends on DM 130 select RSA 131 help 132 This option enables signature verification of FIT uImages, 133 using a hash signed and verified using RSA. 134 See doc/uImage.FIT/signature.txt for more details. 135 136config SYS_EXTRA_OPTIONS 137 string "Extra Options (DEPRECATED)" 138 depends on !SPL_BUILD 139 help 140 The old configuration infrastructure (= mkconfig + boards.cfg) 141 provided the extra options field. If you have something like 142 "HAS_BAR,BAZ=64", the optional options 143 #define CONFIG_HAS 144 #define CONFIG_BAZ 64 145 will be defined in include/config.h. 146 This option was prepared for the smooth migration from the old 147 configuration to Kconfig. Since this option will be removed sometime, 148 new boards should not use this option. 149 150config SYS_TEXT_BASE 151 depends on SPARC || ARC 152 hex "Text Base" 153 help 154 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture 155 156config SYS_CLK_FREQ 157 depends on ARC 158 int "CPU clock frequency" 159 help 160 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture 161 162endmenu # Boot images 163 164source "common/Kconfig" 165 166source "dts/Kconfig" 167 168source "net/Kconfig" 169 170source "drivers/Kconfig" 171 172source "fs/Kconfig" 173 174source "lib/Kconfig" 175 176source "test/Kconfig" 177