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"
11 # Allow defaults in arch-specific code to override any given here
17 string "Local version - append to U-Boot release"
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.
26 config LOCALVERSION_AUTO
27 bool "Automatically append version information to the version string"
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
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.
39 (The actual string used here is the first eight characters produced
40 by running the command:
42 $ git rev-parse --verify HEAD
44 which is done within the script "scripts/setlocalversion".)
46 config CC_OPTIMIZE_FOR_SIZE
47 bool "Optimize for size"
50 Enabling this option will pass "-Os" instead of "-O2" to gcc
51 resulting in a smaller U-Boot image.
53 This option is enabled by default for U-Boot.
56 bool "Enable malloc() pool before relocation"
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.
64 config SYS_MALLOC_F_LEN
65 hex "Size of malloc() pool before relocation"
66 depends on SYS_MALLOC_F
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.
75 bool "Configure standard U-Boot features (expert users)"
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.
82 endmenu # General setup
94 depends on SUPPORT_SPL
97 If you want to build SPL as well as the normal image, say Y.
101 bool "Enable SDRAM location for SPL stack"
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.
110 config SPL_STACK_R_ADDR
111 depends on SPL_STACK_R
112 hex "SDRAM location for SPL stack"
114 Specify the address in SDRAM for the SPL stack. This will be set up
115 before board_init_r() is called.
119 depends on SPL && SUPPORT_TPL
122 If you want to build TPL as well as the normal image and SPL, say Y.
125 bool "Support Flattened Image Tree"
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.
134 bool "Display verbose messages on FIT boot"
138 bool "Enable signature verification of FIT uImages"
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.
149 config SYS_EXTRA_OPTIONS
150 string "Extra Options (DEPRECATED)"
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
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.
163 depends on SPARC || ARC
166 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
170 int "CPU clock frequency"
172 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
174 endmenu # Boot images
176 source "common/Kconfig"
182 source "drivers/Kconfig"
188 source "test/Kconfig"