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 depends on $KCONFIG_OBJDIR="spl" || $KCONFIG_OBJDIR="tpl"
78 depends on $KCONFIG_OBJDIR="tpl"
89 depends on SUPPORT_SPL
90 prompt "Enable SPL" if !SPL_BUILD
91 default y if SPL_BUILD
93 If you want to build SPL as well as the normal image, say Y.
97 depends on SPL && SUPPORT_TPL
98 prompt "Enable TPL" if !SPL_BUILD
99 default y if TPL_BUILD
102 If you want to build TPL as well as the normal image and SPL, say Y.
105 bool "Support Flattened Image Tree"
106 depends on !SPL_BUILD
108 This option allows to boot the new uImage structrure,
109 Flattened Image Tree. FIT is formally a FDT, which can include
110 images of various types (kernel, FDT blob, ramdisk, etc.)
111 in a single blob. To boot this new uImage structure,
112 pass the the address of the blob to the "bootm" command.
115 bool "Display verbose messages on FIT boot"
119 bool "Enable signature verification of FIT uImages"
124 This option enables signature verification of FIT uImages,
125 using a hash signed and verified using RSA.
126 See doc/uImage.FIT/signature.txt for more details.
128 config SYS_EXTRA_OPTIONS
129 string "Extra Options (DEPRECATED)"
130 depends on !SPL_BUILD
132 The old configuration infrastructure (= mkconfig + boards.cfg)
133 provided the extra options field. If you have something like
134 "HAS_BAR,BAZ=64", the optional options
136 #define CONFIG_BAZ 64
137 will be defined in include/config.h.
138 This option was prepared for the smooth migration from the old
139 configuration to Kconfig. Since this option will be removed sometime,
140 new boards should not use this option.
143 depends on SPARC || ARC
146 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
150 int "CPU clock frequency"
152 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
154 endmenu # Boot images
156 source "arch/Kconfig"
158 source "common/Kconfig"
164 source "drivers/Kconfig"