Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5 mainmenu "U-Boot $UBOOTVERSION Configuration"
   6
   7 config UBOOTVERSION
   8         string
   9         option env="UBOOTVERSION"
  10
  11 config KCONFIG_OBJDIR
  12         string
  13         option env="KCONFIG_OBJDIR"
  14
  15 menu "General setup"
  16
  17 config 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
  28 config 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
  49 config 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
  59 menuconfig 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
  67 endmenu         # General setup
  68
  69 menu "Boot images"
  70
  71 config SPL_BUILD
  72         bool
  73         depends on $KCONFIG_OBJDIR="spl" || $KCONFIG_OBJDIR="tpl"
  74         default y
  75
  76 config TPL_BUILD
  77         bool
  78         depends on $KCONFIG_OBJDIR="tpl"
  79         default y
  80
  81 config SUPPORT_SPL
  82         bool
  83
  84 config SUPPORT_TPL
  85         bool
  86
  87 config 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
  95 config 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
 104 config 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
 114 config FIT_VERBOSE
 115         bool "Display verbose messages on FIT boot"
 116         depends on FIT
 117
 118 config 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
 127 config 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
 141 config 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
 147 config 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
 153 endmenu         # Boot images
 154
 155 source "arch/Kconfig"
 156
 157 source "common/Kconfig"
 158
 159 source "dts/Kconfig"
 160
 161 source "net/Kconfig"
 162
 163 source "drivers/Kconfig"
 164
 165 source "fs/Kconfig"
 166
 167 source "lib/Kconfig"