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51631259 MY |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
59d7c34b RD |
3 | # see the file Documentation/kbuild/kconfig-language.txt in the |
4 | # Linux kernel source tree. | |
51631259 MY |
5 | # |
6 | mainmenu "U-Boot $UBOOTVERSION Configuration" | |
7 | ||
8 | config UBOOTVERSION | |
9 | string | |
10 | option env="UBOOTVERSION" | |
11 | ||
66afaef2 SG |
12 | # Allow defaults in arch-specific code to override any given here |
13 | source "arch/Kconfig" | |
14 | ||
51631259 MY |
15 | menu "General setup" |
16 | ||
e91c3c33 MY |
17 | config LOCALVERSION |
18 | string "Local version - append to U-Boot release" | |
e91c3c33 MY |
19 | help |
20 | Append an extra string to the end of your U-Boot version. | |
59d7c34b | 21 | This will show up in your boot log, for example. |
e91c3c33 MY |
22 | The string you set here will be appended after the contents of |
23 | any files with a filename matching localversion* in your | |
24 | object and source tree, in that order. Your total string can | |
25 | be a maximum of 64 characters. | |
26 | ||
27 | config LOCALVERSION_AUTO | |
28 | bool "Automatically append version information to the version string" | |
e91c3c33 MY |
29 | default y |
30 | help | |
31 | This will try to automatically determine if the current tree is a | |
59d7c34b | 32 | release tree by looking for Git tags that belong to the current |
e91c3c33 MY |
33 | top of tree revision. |
34 | ||
35 | A string of the format -gxxxxxxxx will be added to the localversion | |
59d7c34b | 36 | if a Git-based tree is found. The string generated by this will be |
e91c3c33 MY |
37 | appended after any matching localversion* files, and after the value |
38 | set in CONFIG_LOCALVERSION. | |
39 | ||
40 | (The actual string used here is the first eight characters produced | |
41 | by running the command: | |
42 | ||
43 | $ git rev-parse --verify HEAD | |
44 | ||
45 | which is done within the script "scripts/setlocalversion".) | |
46 | ||
4a8ed8e2 MY |
47 | config CC_OPTIMIZE_FOR_SIZE |
48 | bool "Optimize for size" | |
4a8ed8e2 MY |
49 | default y |
50 | help | |
51 | Enabling this option will pass "-Os" instead of "-O2" to gcc | |
52 | resulting in a smaller U-Boot image. | |
53 | ||
54 | This option is enabled by default for U-Boot. | |
55 | ||
b724bd7d SG |
56 | config SYS_MALLOC_F |
57 | bool "Enable malloc() pool before relocation" | |
326a6823 | 58 | default y if DM |
b724bd7d | 59 | help |
59d7c34b | 60 | Before relocation, memory is very limited on many platforms. Still, |
b724bd7d SG |
61 | we can provide a small malloc() pool if needed. Driver model in |
62 | particular needs this to operate, so that it can allocate the | |
63 | initial serial device and any others that are needed. | |
64 | ||
65 | config SYS_MALLOC_F_LEN | |
66 | hex "Size of malloc() pool before relocation" | |
67 | depends on SYS_MALLOC_F | |
68 | default 0x400 | |
69 | help | |
59d7c34b | 70 | Before relocation, memory is very limited on many platforms. Still, |
b724bd7d SG |
71 | we can provide a small malloc() pool if needed. Driver model in |
72 | particular needs this to operate, so that it can allocate the | |
73 | initial serial device and any others that are needed. | |
74 | ||
1bf0979f | 75 | menuconfig EXPERT |
0aa8a4ad PM |
76 | bool "Configure standard U-Boot features (expert users)" |
77 | default y | |
78 | help | |
79 | This option allows certain base U-Boot options and settings | |
80 | to be disabled or tweaked. This is for specialized | |
81 | environments which can tolerate a "non-standard" U-Boot. | |
59d7c34b | 82 | Use this only if you really know what you are doing. |
0aa8a4ad PM |
83 | |
84 | if EXPERT | |
85 | config SYS_MALLOC_CLEAR_ON_INIT | |
86 | bool "Init with zeros the memory reserved for malloc (slow)" | |
87 | default y | |
88 | help | |
89 | This setting is enabled by default. The reserved malloc | |
90 | memory is initialized with zeros, so first malloc calls | |
91 | will return the pointer to the zeroed memory. But this | |
92 | slows the boot time. | |
93 | ||
94 | It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN | |
95 | value, has more than few MiB, e.g. when uses bzip2 or bmp logo. | |
96 | Then the boot time can be significantly reduced. | |
97 | Warning: | |
98 | When disabling this, please check if malloc calls, maybe | |
59d7c34b | 99 | should be replaced by calloc - if one expects zeroed memory. |
0aa8a4ad | 100 | endif |
40ad4c4b MY |
101 | endmenu # General setup |
102 | ||
e91c3c33 MY |
103 | menu "Boot images" |
104 | ||
02627356 MY |
105 | config SUPPORT_SPL |
106 | bool | |
107 | ||
cf6bbe4c MY |
108 | config SUPPORT_TPL |
109 | bool | |
110 | ||
51631259 MY |
111 | config SPL |
112 | bool | |
02627356 | 113 | depends on SUPPORT_SPL |
d648964f | 114 | prompt "Enable SPL" |
51631259 MY |
115 | help |
116 | If you want to build SPL as well as the normal image, say Y. | |
117 | ||
1eb0c03c HG |
118 | config SPL_SYS_MALLOC_SIMPLE |
119 | bool | |
120 | depends on SPL | |
59d7c34b | 121 | prompt "Only use malloc_simple functions in the SPL" |
1eb0c03c HG |
122 | help |
123 | Say Y here to only use the *_simple malloc functions from | |
59d7c34b | 124 | malloc_simple.c, rather then using the versions from dlmalloc.c; |
1eb0c03c HG |
125 | this will make the SPL binary smaller at the cost of more heap |
126 | usage as the *_simple malloc functions do not re-use free-ed mem. | |
127 | ||
db910353 SG |
128 | config SPL_STACK_R |
129 | depends on SPL | |
130 | bool "Enable SDRAM location for SPL stack" | |
131 | help | |
132 | SPL starts off execution in SRAM and thus typically has only a small | |
133 | stack available. Since SPL sets up DRAM while in its board_init_f() | |
134 | function, it is possible for the stack to move there before | |
135 | board_init_r() is reached. This option enables a special SDRAM | |
136 | location for the SPL stack. U-Boot SPL switches to this after | |
137 | board_init_f() completes, and before board_init_r() starts. | |
138 | ||
139 | config SPL_STACK_R_ADDR | |
140 | depends on SPL_STACK_R | |
141 | hex "SDRAM location for SPL stack" | |
142 | help | |
143 | Specify the address in SDRAM for the SPL stack. This will be set up | |
144 | before board_init_r() is called. | |
145 | ||
dcfcb8d4 HG |
146 | config SPL_STACK_R_MALLOC_SIMPLE_LEN |
147 | depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE | |
148 | hex "Size of malloc_simple heap after switching to DRAM SPL stack" | |
149 | default 0x100000 | |
150 | help | |
151 | Specify the amount of the stack to use as memory pool for | |
152 | malloc_simple after switching the stack to DRAM. This may be set | |
153 | to give board_init_r() a larger heap then the initial heap in | |
154 | SRAM which is limited to SYS_MALLOC_F_LEN bytes. | |
155 | ||
10172962 SG |
156 | config SPL_SEPARATE_BSS |
157 | depends on SPL | |
158 | bool "BSS section is in a different memory region from text" | |
159 | help | |
160 | Some platforms need a large BSS region in SPL and can provide this | |
161 | because RAM is already set up. In this case BSS can be moved to RAM. | |
162 | This option should then be enabled so that the correct device tree | |
163 | location is used. Normally we put the device tree at the end of BSS | |
164 | but with this option enabled, it goes at _image_binary_end. | |
165 | ||
51631259 MY |
166 | config TPL |
167 | bool | |
cf6bbe4c | 168 | depends on SPL && SUPPORT_TPL |
d648964f | 169 | prompt "Enable TPL" |
51631259 MY |
170 | help |
171 | If you want to build TPL as well as the normal image and SPL, say Y. | |
172 | ||
b6cf4439 MY |
173 | config FIT |
174 | bool "Support Flattened Image Tree" | |
b6cf4439 MY |
175 | help |
176 | This option allows to boot the new uImage structrure, | |
177 | Flattened Image Tree. FIT is formally a FDT, which can include | |
178 | images of various types (kernel, FDT blob, ramdisk, etc.) | |
179 | in a single blob. To boot this new uImage structure, | |
1f9ac4a4 | 180 | pass the address of the blob to the "bootm" command. |
73223f0e SG |
181 | FIT is very flexible, supporting compression, multiple images, |
182 | multiple configurations, verification through hashing and also | |
183 | verified boot (secure boot using RSA). This option enables that | |
184 | feature. | |
b6cf4439 MY |
185 | |
186 | config FIT_VERBOSE | |
187 | bool "Display verbose messages on FIT boot" | |
188 | depends on FIT | |
189 | ||
190 | config FIT_SIGNATURE | |
c4beb22f | 191 | bool "Enable signature verification of FIT uImages" |
b6cf4439 | 192 | depends on FIT |
9009798d | 193 | depends on DM |
c4beb22f | 194 | select RSA |
b6cf4439 MY |
195 | help |
196 | This option enables signature verification of FIT uImages, | |
94e3c8c4 | 197 | using a hash signed and verified using RSA. If |
198 | CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive | |
73223f0e SG |
199 | hashing is available using hardware, then then RSA library will use |
200 | it. See doc/uImage.FIT/signature.txt for more details. | |
201 | ||
202 | WARNING: When relying on signed FIT images with a required signature | |
203 | check the legacy image format is disabled by default, so that | |
204 | unsigned images cannot be loaded. If a board needs the legacy image | |
205 | format support in this case, enable it using | |
206 | CONFIG_IMAGE_FORMAT_LEGACY. | |
207 | ||
208 | config FIT_BEST_MATCH | |
209 | bool "Select the best match for the kernel device tree" | |
210 | depends on FIT | |
211 | help | |
212 | When no configuration is explicitly selected, default to the | |
213 | one whose fdt's compatibility field best matches that of | |
214 | U-Boot itself. A match is considered "best" if it matches the | |
215 | most specific compatibility entry of U-Boot's fdt's root node. | |
216 | The order of entries in the configuration's fdt is ignored. | |
217 | ||
218 | config FIT_VERBOSE | |
219 | bool "Show verbose messages when FIT images fails" | |
220 | depends on FIT | |
221 | help | |
222 | Generally a system will have valid FIT images so debug messages | |
223 | are a waste of code space. If you are debugging your images then | |
224 | you can enable this option to get more verbose information about | |
225 | failures. | |
226 | ||
227 | config OF_BOARD_SETUP | |
228 | bool "Set up board-specific details in device tree before boot" | |
229 | depends on OF_LIBFDT | |
230 | help | |
231 | This causes U-Boot to call ft_board_setup() before booting into | |
232 | the Operating System. This function can set up various | |
233 | board-specific information in the device tree for use by the OS. | |
234 | The device tree is then passed to the OS. | |
235 | ||
236 | config OF_SYSTEM_SETUP | |
237 | bool "Set up system-specific details in device tree before boot" | |
238 | depends on OF_LIBFDT | |
239 | help | |
240 | This causes U-Boot to call ft_system_setup() before booting into | |
241 | the Operating System. This function can set up various | |
242 | system-specific information in the device tree for use by the OS. | |
243 | The device tree is then passed to the OS. | |
244 | ||
245 | config OF_STDOUT_VIA_ALIAS | |
246 | bool "Update the device-tree stdout alias from U-Boot" | |
247 | depends on OF_LIBFDT | |
248 | help | |
249 | This uses U-Boot's serial alias from the aliases node to update | |
250 | the device tree passed to the OS. The "linux,stdout-path" property | |
251 | in the chosen node is set to point to the correct serial node. | |
252 | This option currently references CONFIG_CONS_INDEX, which is | |
253 | incorrect when used with device tree as this option does not | |
254 | exist / should not be used. | |
b6cf4439 | 255 | |
51631259 MY |
256 | config SYS_EXTRA_OPTIONS |
257 | string "Extra Options (DEPRECATED)" | |
51631259 MY |
258 | help |
259 | The old configuration infrastructure (= mkconfig + boards.cfg) | |
ed36323f | 260 | provided the extra options field. If you have something like |
51631259 MY |
261 | "HAS_BAR,BAZ=64", the optional options |
262 | #define CONFIG_HAS | |
263 | #define CONFIG_BAZ 64 | |
264 | will be defined in include/config.h. | |
265 | This option was prepared for the smooth migration from the old | |
266 | configuration to Kconfig. Since this option will be removed sometime, | |
267 | new boards should not use this option. | |
268 | ||
7f7563ce | 269 | config SYS_TEXT_BASE |
c6e18144 | 270 | depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \ |
ec35e123 | 271 | (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE || MIPS |
484cce0d | 272 | depends on !EFI_APP |
7f7563ce MY |
273 | hex "Text Base" |
274 | help | |
275 | TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture | |
276 | ||
f1dcee59 SG |
277 | config SPL_LOAD_FIT |
278 | bool "Enable SPL loading U-Boot as a FIT" | |
279 | depends on FIT | |
280 | help | |
281 | Normally with the SPL framework a legacy image is generated as part | |
282 | of the build. This contains U-Boot along with information as to | |
283 | where it should be loaded. This option instead enables generation | |
284 | of a FIT (Flat Image Tree) which provides more flexibility. In | |
285 | particular it can handle selecting from multiple device tree | |
286 | and passing the correct one to U-Boot. | |
287 | ||
33d88183 | 288 | config SYS_CLK_FREQ |
e71b422b | 289 | depends on ARC || ARCH_SUNXI |
33d88183 AB |
290 | int "CPU clock frequency" |
291 | help | |
292 | TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture | |
293 | ||
e91c3c33 | 294 | endmenu # Boot images |
51631259 | 295 | |
ed36323f MY |
296 | source "common/Kconfig" |
297 | ||
72a8cf8d SG |
298 | source "cmd/Kconfig" |
299 | ||
783e6a72 MY |
300 | source "dts/Kconfig" |
301 | ||
ed36323f MY |
302 | source "net/Kconfig" |
303 | ||
304 | source "drivers/Kconfig" | |
305 | ||
306 | source "fs/Kconfig" | |
307 | ||
308 | source "lib/Kconfig" | |
1967982a SG |
309 | |
310 | source "test/Kconfig" |