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 SPL_STACK_R
 100         depends on SPL
 101         bool "Enable SDRAM location for SPL stack"
 102         help
 103           SPL starts off execution in SRAM and thus typically has only a small
 104           stack available. Since SPL sets up DRAM while in its board_init_f()
 105           function, it is possible for the stack to move there before
 106           board_init_r() is reached. This option enables a special SDRAM
 107           location for the SPL stack. U-Boot SPL switches to this after
 108           board_init_f() completes, and before board_init_r() starts.
 109
 110 config SPL_STACK_R_ADDR
 111         depends on SPL_STACK_R
 112         hex "SDRAM location for SPL stack"
 113         help
 114           Specify the address in SDRAM for the SPL stack. This will be set up
 115           before board_init_r() is called.
 116
 117 config TPL
 118         bool
 119         depends on SPL && SUPPORT_TPL
 120         prompt "Enable TPL"
 121         help
 122           If you want to build TPL as well as the normal image and SPL, say Y.
 123
 124 config FIT
 125         bool "Support Flattened Image Tree"
 126         help
 127           This option allows to boot the new uImage structrure,
 128           Flattened Image Tree.  FIT is formally a FDT, which can include
 129           images of various types (kernel, FDT blob, ramdisk, etc.)
 130           in a single blob.  To boot this new uImage structure,
 131           pass the the address of the blob to the "bootm" command.
 132
 133 config FIT_VERBOSE
 134         bool "Display verbose messages on FIT boot"
 135         depends on FIT
 136
 137 config FIT_SIGNATURE
 138         bool "Enable signature verification of FIT uImages"
 139         depends on FIT
 140         depends on DM
 141         select RSA
 142         help
 143           This option enables signature verification of FIT uImages,
 144           using a hash signed and verified using RSA. If
 145           CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
 146           hashing is available using hardware, RSA library will use it.
 147           See doc/uImage.FIT/signature.txt for more details.
 148
 149 config SYS_EXTRA_OPTIONS
 150         string "Extra Options (DEPRECATED)"
 151         help
 152           The old configuration infrastructure (= mkconfig + boards.cfg)
 153           provided the extra options field. If you have something like
 154           "HAS_BAR,BAZ=64", the optional options
 155             #define CONFIG_HAS
 156             #define CONFIG_BAZ  64
 157           will be defined in include/config.h.
 158           This option was prepared for the smooth migration from the old
 159           configuration to Kconfig. Since this option will be removed sometime,
 160           new boards should not use this option.
 161
 162 config SYS_TEXT_BASE
 163         depends on SPARC || ARC
 164         hex "Text Base"
 165         help
 166           TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
 167
 168 config SYS_CLK_FREQ
 169         depends on ARC
 170         int "CPU clock frequency"
 171         help
 172           TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
 173
 174 endmenu         # Boot images
 175
 176 source "common/Kconfig"
 177
 178 source "dts/Kconfig"
 179
 180 source "net/Kconfig"
 181
 182 source "drivers/Kconfig"
 183
 184 source "fs/Kconfig"
 185
 186 source "lib/Kconfig"
 187
 188 source "test/Kconfig"