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 "Enable malloc() pool before relocation"
63 Before relocation memory is very limited on many platforms. Still,
64 we can provide a small malloc() pool if needed. Driver model in
65 particular needs this to operate, so that it can allocate the
66 initial serial device and any others that are needed.
68 config SYS_MALLOC_F_LEN
69 hex "Size of malloc() pool before relocation"
70 depends on SYS_MALLOC_F
73 Before relocation memory is very limited on many platforms. Still,
74 we can provide a small malloc() pool if needed. Driver model in
75 particular needs this to operate, so that it can allocate the
76 initial serial device and any others that are needed.
79 bool "Configure standard U-Boot features (expert users)"
81 This option allows certain base U-Boot options and settings
82 to be disabled or tweaked. This is for specialized
83 environments which can tolerate a "non-standard" U-Boot.
84 Only use this if you really know what you are doing.
86 endmenu # General setup
92 default y if $KCONFIG_OBJDIR="spl" || $KCONFIG_OBJDIR="tpl"
96 depends on $KCONFIG_OBJDIR="tpl"
107 depends on SUPPORT_SPL
108 prompt "Enable SPL" if !SPL_BUILD
109 default y if SPL_BUILD
111 If you want to build SPL as well as the normal image, say Y.
115 depends on SPL && SUPPORT_TPL
116 prompt "Enable TPL" if !SPL_BUILD
117 default y if TPL_BUILD
120 If you want to build TPL as well as the normal image and SPL, say Y.
123 bool "Support Flattened Image Tree"
124 depends on !SPL_BUILD
126 This option allows to boot the new uImage structrure,
127 Flattened Image Tree. FIT is formally a FDT, which can include
128 images of various types (kernel, FDT blob, ramdisk, etc.)
129 in a single blob. To boot this new uImage structure,
130 pass the the address of the blob to the "bootm" command.
133 bool "Display verbose messages on FIT boot"
137 bool "Enable signature verification of FIT uImages"
142 This option enables signature verification of FIT uImages,
143 using a hash signed and verified using RSA.
144 See doc/uImage.FIT/signature.txt for more details.
146 config SYS_EXTRA_OPTIONS
147 string "Extra Options (DEPRECATED)"
148 depends on !SPL_BUILD
150 The old configuration infrastructure (= mkconfig + boards.cfg)
151 provided the extra options field. If you have something like
152 "HAS_BAR,BAZ=64", the optional options
154 #define CONFIG_BAZ 64
155 will be defined in include/config.h.
156 This option was prepared for the smooth migration from the old
157 configuration to Kconfig. Since this option will be removed sometime,
158 new boards should not use this option.
161 depends on SPARC || ARC
164 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
168 int "CPU clock frequency"
170 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
172 endmenu # Boot images
174 source "arch/Kconfig"
176 source "common/Kconfig"
178 source "disk/Kconfig"
184 source "drivers/Kconfig"
190 source "test/Kconfig"