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 # Allow defaults in arch-specific code to override any given here
  16 source "arch/Kconfig"
  17
  18 menu "General setup"
  19
  20 config LOCALVERSION
  21         string "Local version - append to U-Boot release"
  22         depends on !SPL_BUILD
  23         help
  24           Append an extra string to the end of your U-Boot version.
  25           This will show up on your boot log, for example.
  26           The string you set here will be appended after the contents of
  27           any files with a filename matching localversion* in your
  28           object and source tree, in that order.  Your total string can
  29           be a maximum of 64 characters.
  30
  31 config LOCALVERSION_AUTO
  32         bool "Automatically append version information to the version string"
  33         depends on !SPL_BUILD
  34         default y
  35         help
  36           This will try to automatically determine if the current tree is a
  37           release tree by looking for git tags that belong to the current
  38           top of tree revision.
  39
  40           A string of the format -gxxxxxxxx will be added to the localversion
  41           if a git-based tree is found.  The string generated by this will be
  42           appended after any matching localversion* files, and after the value
  43           set in CONFIG_LOCALVERSION.
  44
  45           (The actual string used here is the first eight characters produced
  46           by running the command:
  47
  48             $ git rev-parse --verify HEAD
  49
  50           which is done within the script "scripts/setlocalversion".)
  51
  52 config CC_OPTIMIZE_FOR_SIZE
  53         bool "Optimize for size"
  54         depends on !SPL_BUILD
  55         default y
  56         help
  57           Enabling this option will pass "-Os" instead of "-O2" to gcc
  58           resulting in a smaller U-Boot image.
  59
  60           This option is enabled by default for U-Boot.
  61
  62 config SYS_MALLOC_F
  63         bool "Enable malloc() pool before relocation"
  64         default 0x400
  65         help
  66           Before relocation memory is very limited on many platforms. Still,
  67           we can provide a small malloc() pool if needed. Driver model in
  68           particular needs this to operate, so that it can allocate the
  69           initial serial device and any others that are needed.
  70
  71 config SYS_MALLOC_F_LEN
  72         hex "Size of malloc() pool before relocation"
  73         depends on SYS_MALLOC_F
  74         default 0x400
  75         help
  76           Before relocation memory is very limited on many platforms. Still,
  77           we can provide a small malloc() pool if needed. Driver model in
  78           particular needs this to operate, so that it can allocate the
  79           initial serial device and any others that are needed.
  80
  81 menuconfig EXPERT
  82         bool "Configure standard U-Boot features (expert users)"
  83         help
  84           This option allows certain base U-Boot options and settings
  85           to be disabled or tweaked. This is for specialized
  86           environments which can tolerate a "non-standard" U-Boot.
  87           Only use this if you really know what you are doing.
  88
  89 endmenu         # General setup
  90
  91 menu "Boot images"
  92
  93 config SPL_BUILD
  94         bool
  95         depends on $KCONFIG_OBJDIR="spl" || $KCONFIG_OBJDIR="tpl"
  96         default y
  97
  98 config TPL_BUILD
  99         bool
 100         depends on $KCONFIG_OBJDIR="tpl"
 101         default y
 102
 103 config SUPPORT_SPL
 104         bool
 105
 106 config SUPPORT_TPL
 107         bool
 108
 109 config SPL
 110         bool
 111         depends on SUPPORT_SPL
 112         prompt "Enable SPL" if !SPL_BUILD
 113         default y if SPL_BUILD
 114         help
 115           If you want to build SPL as well as the normal image, say Y.
 116
 117 config TPL
 118         bool
 119         depends on SPL && SUPPORT_TPL
 120         prompt "Enable TPL" if !SPL_BUILD
 121         default y if TPL_BUILD
 122         default n
 123         help
 124           If you want to build TPL as well as the normal image and SPL, say Y.
 125
 126 config FIT
 127         bool "Support Flattened Image Tree"
 128         depends on !SPL_BUILD
 129         help
 130           This option allows to boot the new uImage structrure,
 131           Flattened Image Tree.  FIT is formally a FDT, which can include
 132           images of various types (kernel, FDT blob, ramdisk, etc.)
 133           in a single blob.  To boot this new uImage structure,
 134           pass the the address of the blob to the "bootm" command.
 135
 136 config FIT_VERBOSE
 137         bool "Display verbose messages on FIT boot"
 138         depends on FIT
 139
 140 config FIT_SIGNATURE
 141         bool "Enable signature verification of FIT uImages"
 142         depends on FIT
 143         depends on DM
 144         select RSA
 145         help
 146           This option enables signature verification of FIT uImages,
 147           using a hash signed and verified using RSA.
 148           See doc/uImage.FIT/signature.txt for more details.
 149
 150 config SYS_EXTRA_OPTIONS
 151         string "Extra Options (DEPRECATED)"
 152         depends on !SPL_BUILD
 153         help
 154           The old configuration infrastructure (= mkconfig + boards.cfg)
 155           provided the extra options field. If you have something like
 156           "HAS_BAR,BAZ=64", the optional options
 157             #define CONFIG_HAS
 158             #define CONFIG_BAZ  64
 159           will be defined in include/config.h.
 160           This option was prepared for the smooth migration from the old
 161           configuration to Kconfig. Since this option will be removed sometime,
 162           new boards should not use this option.
 163
 164 config SYS_TEXT_BASE
 165         depends on SPARC || ARC
 166         hex "Text Base"
 167         help
 168           TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
 169
 170 config SYS_CLK_FREQ
 171         depends on ARC
 172         int "CPU clock frequency"
 173         help
 174           TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
 175
 176 endmenu         # Boot images
 177
 178 source "common/Kconfig"
 179
 180 source "dts/Kconfig"
 181
 182 source "net/Kconfig"
 183
 184 source "drivers/Kconfig"
 185
 186 source "fs/Kconfig"
 187
 188 source "lib/Kconfig"
 189
 190 source "test/Kconfig"