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