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 # Allow defaults in arch-specific code to override any given here
  12 source "arch/Kconfig"
  13
  14 menu "General setup"
  15
  16 config 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
  27 config 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
  48 config 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
  58 config 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
  67 config 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
  77 menuconfig 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
  85 endmenu         # General setup
  86
  87 menu "Boot images"
  88
  89 config SUPPORT_SPL
  90         bool
  91
  92 config SUPPORT_TPL
  93         bool
  94
  95 config 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
 103 config 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
 112 config 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
 122 config FIT_VERBOSE
 123         bool "Display verbose messages on FIT boot"
 124         depends on FIT
 125
 126 config 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
 136 config 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
 150 config 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
 156 config 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
 162 endmenu         # Boot images
 163
 164 source "common/Kconfig"
 165
 166 source "dts/Kconfig"
 167
 168 source "net/Kconfig"
 169
 170 source "drivers/Kconfig"
 171
 172 source "fs/Kconfig"
 173
 174 source "lib/Kconfig"
 175
 176 source "test/Kconfig"