2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
5 mainmenu "U-Boot $UBOOTVERSION Configuration"
9 option env="UBOOTVERSION"
13 option env="KCONFIG_OBJDIR"
18 string "Local version - append to U-Boot release"
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.
28 config LOCALVERSION_AUTO
29 bool "Automatically append version information to the version string"
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
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.
42 (The actual string used here is the first eight characters produced
43 by running the command:
45 $ git rev-parse --verify HEAD
47 which is done within the script "scripts/setlocalversion".)
49 config CC_OPTIMIZE_FOR_SIZE
50 bool "Optimize for size"
54 Enabling this option will pass "-Os" instead of "-O2" to gcc
55 resulting in a smaller U-Boot image.
57 This option is enabled by default for U-Boot.
60 bool "Configure standard U-Boot features (expert users)"
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.
67 endmenu # General setup
73 default y if $KCONFIG_OBJDIR="spl" || $KCONFIG_OBJDIR="tpl"
77 depends on $KCONFIG_OBJDIR="tpl"
88 depends on SUPPORT_SPL
89 prompt "Enable SPL" if !SPL_BUILD
90 default y if SPL_BUILD
92 If you want to build SPL as well as the normal image, say Y.
96 depends on SPL && SUPPORT_TPL
97 prompt "Enable TPL" if !SPL_BUILD
98 default y if TPL_BUILD
101 If you want to build TPL as well as the normal image and SPL, say Y.
104 bool "Support Flattened Image Tree"
105 depends on !SPL_BUILD
107 This option allows to boot the new uImage structrure,
108 Flattened Image Tree. FIT is formally a FDT, which can include
109 images of various types (kernel, FDT blob, ramdisk, etc.)
110 in a single blob. To boot this new uImage structure,
111 pass the the address of the blob to the "bootm" command.
114 bool "Display verbose messages on FIT boot"
118 bool "Enable signature verification of FIT uImages"
122 This option enables signature verification of FIT uImages,
123 using a hash signed and verified using RSA.
124 See doc/uImage.FIT/signature.txt for more details.
126 config SYS_EXTRA_OPTIONS
127 string "Extra Options (DEPRECATED)"
128 depends on !SPL_BUILD
130 The old configuration infrastructure (= mkconfig + boards.cfg)
131 provided the extra options field. If you have something like
132 "HAS_BAR,BAZ=64", the optional options
134 #define CONFIG_BAZ 64
135 will be defined in include/config.h.
136 This option was prepared for the smooth migration from the old
137 configuration to Kconfig. Since this option will be removed sometime,
138 new boards should not use this option.
144 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
148 int "CPU clock frequency"
150 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
152 endmenu # Boot images
154 source "arch/Kconfig"
156 source "common/Kconfig"
158 source "disk/Kconfig"
164 source "drivers/Kconfig"