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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 | ||
4c7a2110 HS |
17 | config BROKEN |
18 | bool | |
19 | help | |
20 | This option cannot be enabled. It is used as dependency | |
21 | for broken and incomplete features. | |
22 | ||
e91c3c33 MY |
23 | config LOCALVERSION |
24 | string "Local version - append to U-Boot release" | |
e91c3c33 MY |
25 | help |
26 | Append an extra string to the end of your U-Boot version. | |
59d7c34b | 27 | This will show up in your boot log, for example. |
e91c3c33 MY |
28 | The string you set here will be appended after the contents of |
29 | any files with a filename matching localversion* in your | |
30 | object and source tree, in that order. Your total string can | |
31 | be a maximum of 64 characters. | |
32 | ||
33 | config LOCALVERSION_AUTO | |
34 | bool "Automatically append version information to the version string" | |
e91c3c33 MY |
35 | default y |
36 | help | |
37 | This will try to automatically determine if the current tree is a | |
59d7c34b | 38 | release tree by looking for Git tags that belong to the current |
e91c3c33 MY |
39 | top of tree revision. |
40 | ||
41 | A string of the format -gxxxxxxxx will be added to the localversion | |
59d7c34b | 42 | if a Git-based tree is found. The string generated by this will be |
e91c3c33 MY |
43 | appended after any matching localversion* files, and after the value |
44 | set in CONFIG_LOCALVERSION. | |
45 | ||
46 | (The actual string used here is the first eight characters produced | |
47 | by running the command: | |
48 | ||
49 | $ git rev-parse --verify HEAD | |
50 | ||
51 | which is done within the script "scripts/setlocalversion".) | |
52 | ||
4a8ed8e2 MY |
53 | config CC_OPTIMIZE_FOR_SIZE |
54 | bool "Optimize for size" | |
4a8ed8e2 MY |
55 | default y |
56 | help | |
57 | Enabling this option will pass "-Os" instead of "-O2" to gcc | |
58 | resulting in a smaller U-Boot image. | |
59 | ||
60 | This option is enabled by default for U-Boot. | |
61 | ||
9f823615 HG |
62 | config DISTRO_DEFAULTS |
63 | bool "Select defaults suitable for booting general purpose Linux distributions" | |
3337e3af | 64 | default y if ARCH_SUNXI || TEGRA |
b99ebaf9 | 65 | default y if ARCH_LS2080A |
70b8bd7d | 66 | default y if ARCH_MESON |
7bdedf11 | 67 | default y if ARCH_ROCKCHIP |
9f823615 | 68 | default n |
a391d500 | 69 | select CMD_BOOTZ if ARM && !ARM64 |
26959271 | 70 | select CMD_BOOTI if ARM64 |
9f823615 | 71 | select CMD_DHCP |
bfb380b3 | 72 | select CMD_PXE |
9f823615 HG |
73 | select CMD_EXT2 |
74 | select CMD_EXT4 | |
75 | select CMD_FAT | |
76 | select CMD_FS_GENERIC | |
77 | select CMD_MII | |
78 | select CMD_PING | |
b331cd62 | 79 | select CMD_PART |
9f823615 HG |
80 | select HUSH_PARSER |
81 | help | |
82 | Select this to enable various options and commands which are suitable | |
83 | for building u-boot for booting general purpose Linux distributions. | |
84 | ||
b724bd7d SG |
85 | config SYS_MALLOC_F |
86 | bool "Enable malloc() pool before relocation" | |
326a6823 | 87 | default y if DM |
b724bd7d | 88 | help |
59d7c34b | 89 | Before relocation, memory is very limited on many platforms. Still, |
b724bd7d SG |
90 | we can provide a small malloc() pool if needed. Driver model in |
91 | particular needs this to operate, so that it can allocate the | |
92 | initial serial device and any others that are needed. | |
93 | ||
94 | config SYS_MALLOC_F_LEN | |
95 | hex "Size of malloc() pool before relocation" | |
96 | depends on SYS_MALLOC_F | |
97 | default 0x400 | |
98 | help | |
59d7c34b | 99 | Before relocation, memory is very limited on many platforms. Still, |
b724bd7d SG |
100 | we can provide a small malloc() pool if needed. Driver model in |
101 | particular needs this to operate, so that it can allocate the | |
102 | initial serial device and any others that are needed. | |
103 | ||
f1896c45 | 104 | config SPL_SYS_MALLOC_F_LEN |
ae2cee2e PT |
105 | hex "Size of malloc() pool in SPL before relocation" |
106 | depends on SYS_MALLOC_F | |
107 | default SYS_MALLOC_F_LEN | |
108 | help | |
109 | Before relocation, memory is very limited on many platforms. Still, | |
110 | we can provide a small malloc() pool if needed. Driver model in | |
111 | particular needs this to operate, so that it can allocate the | |
112 | initial serial device and any others that are needed. | |
113 | ||
114 | config TPL_SYS_MALLOC_F_LEN | |
115 | hex "Size of malloc() pool in TPL before relocation" | |
f1896c45 AY |
116 | depends on SYS_MALLOC_F |
117 | default SYS_MALLOC_F_LEN | |
118 | help | |
119 | Before relocation, memory is very limited on many platforms. Still, | |
120 | we can provide a small malloc() pool if needed. Driver model in | |
121 | particular needs this to operate, so that it can allocate the | |
122 | initial serial device and any others that are needed. | |
123 | ||
1bf0979f | 124 | menuconfig EXPERT |
0aa8a4ad PM |
125 | bool "Configure standard U-Boot features (expert users)" |
126 | default y | |
127 | help | |
128 | This option allows certain base U-Boot options and settings | |
129 | to be disabled or tweaked. This is for specialized | |
130 | environments which can tolerate a "non-standard" U-Boot. | |
59d7c34b | 131 | Use this only if you really know what you are doing. |
0aa8a4ad PM |
132 | |
133 | if EXPERT | |
134 | config SYS_MALLOC_CLEAR_ON_INIT | |
135 | bool "Init with zeros the memory reserved for malloc (slow)" | |
136 | default y | |
137 | help | |
138 | This setting is enabled by default. The reserved malloc | |
139 | memory is initialized with zeros, so first malloc calls | |
140 | will return the pointer to the zeroed memory. But this | |
141 | slows the boot time. | |
142 | ||
143 | It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN | |
144 | value, has more than few MiB, e.g. when uses bzip2 or bmp logo. | |
145 | Then the boot time can be significantly reduced. | |
146 | Warning: | |
147 | When disabling this, please check if malloc calls, maybe | |
59d7c34b | 148 | should be replaced by calloc - if one expects zeroed memory. |
022885cb SG |
149 | |
150 | config TOOLS_DEBUG | |
151 | bool "Enable debug information for tools" | |
152 | help | |
153 | Enable generation of debug information for tools such as mkimage. | |
154 | This can be used for debugging purposes. With debug information | |
155 | it is possible to set breakpoints on particular lines, single-step | |
156 | debug through the source code, etc. | |
157 | ||
266aa86b | 158 | endif # EXPERT |
bb6b142f MY |
159 | |
160 | config PHYS_64BIT | |
161 | bool "64bit physical address support" | |
162 | help | |
163 | Say Y here to support 64bit physical memory address. | |
164 | This can be used not only for 64bit SoCs, but also for | |
165 | large physical address extention on 32bit SoCs. | |
166 | ||
871aa41d HS |
167 | config BUILD_ROM |
168 | bool "Build U-Boot as BIOS replacement" | |
169 | depends on X86 | |
170 | help | |
171 | This option allows to build a ROM version of U-Boot. | |
172 | The build process generally requires several binary blobs | |
173 | which are not shipped in the U-Boot source tree. | |
174 | Please, see doc/README.x86 for details. | |
175 | ||
40ad4c4b MY |
176 | endmenu # General setup |
177 | ||
e91c3c33 MY |
178 | menu "Boot images" |
179 | ||
48f6232e TR |
180 | config ANDROID_BOOT_IMAGE |
181 | bool "Enable support for Android Boot Images" | |
182 | default y if FASTBOOT | |
183 | help | |
184 | This enables support for booting images which use the Android | |
185 | image format header. | |
186 | ||
b6cf4439 MY |
187 | config FIT |
188 | bool "Support Flattened Image Tree" | |
aeb9c53c | 189 | select MD5 |
089df18b | 190 | select SHA1 |
b6cf4439 | 191 | help |
266aa86b | 192 | This option allows you to boot the new uImage structure, |
b6cf4439 MY |
193 | Flattened Image Tree. FIT is formally a FDT, which can include |
194 | images of various types (kernel, FDT blob, ramdisk, etc.) | |
195 | in a single blob. To boot this new uImage structure, | |
1f9ac4a4 | 196 | pass the address of the blob to the "bootm" command. |
73223f0e SG |
197 | FIT is very flexible, supporting compression, multiple images, |
198 | multiple configurations, verification through hashing and also | |
266aa86b | 199 | verified boot (secure boot using RSA). |
b6cf4439 | 200 | |
266aa86b | 201 | if FIT |
b6cf4439 | 202 | |
0db7f685 TR |
203 | config FIT_ENABLE_SHA256_SUPPORT |
204 | bool "Support SHA256 checksum of FIT image contents" | |
089df18b | 205 | select SHA256 |
0db7f685 TR |
206 | default y |
207 | help | |
208 | Enable this to support SHA256 checksum of FIT image contents. A | |
209 | SHA256 checksum is a 256-bit (32-byte) hash value used to check that | |
210 | the image contents have not been corrupted. SHA256 is recommended | |
211 | for use in secure applications since (as at 2016) there is no known | |
212 | feasible attack that could produce a 'collision' with differing | |
213 | input data. Use this for the highest security. Note that only the | |
214 | SHA256 variant is supported: SHA512 and others are not currently | |
215 | supported in U-Boot. | |
216 | ||
b6cf4439 | 217 | config FIT_SIGNATURE |
c4beb22f | 218 | bool "Enable signature verification of FIT uImages" |
9009798d | 219 | depends on DM |
c4beb22f | 220 | select RSA |
b6cf4439 MY |
221 | help |
222 | This option enables signature verification of FIT uImages, | |
94e3c8c4 | 223 | using a hash signed and verified using RSA. If |
224 | CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive | |
266aa86b | 225 | hashing is available using hardware, then the RSA library will use |
73223f0e SG |
226 | it. See doc/uImage.FIT/signature.txt for more details. |
227 | ||
228 | WARNING: When relying on signed FIT images with a required signature | |
229 | check the legacy image format is disabled by default, so that | |
230 | unsigned images cannot be loaded. If a board needs the legacy image | |
231 | format support in this case, enable it using | |
232 | CONFIG_IMAGE_FORMAT_LEGACY. | |
233 | ||
266aa86b RD |
234 | config FIT_VERBOSE |
235 | bool "Show verbose messages when FIT images fail" | |
236 | help | |
237 | Generally a system will have valid FIT images so debug messages | |
238 | are a waste of code space. If you are debugging your images then | |
239 | you can enable this option to get more verbose information about | |
240 | failures. | |
51c14cd1 | 241 | |
73223f0e SG |
242 | config FIT_BEST_MATCH |
243 | bool "Select the best match for the kernel device tree" | |
73223f0e SG |
244 | help |
245 | When no configuration is explicitly selected, default to the | |
246 | one whose fdt's compatibility field best matches that of | |
247 | U-Boot itself. A match is considered "best" if it matches the | |
248 | most specific compatibility entry of U-Boot's fdt's root node. | |
249 | The order of entries in the configuration's fdt is ignored. | |
250 | ||
266aa86b RD |
251 | config FIT_IMAGE_POST_PROCESS |
252 | bool "Enable post-processing of FIT artifacts after loading by U-Boot" | |
253 | depends on TI_SECURE_DEVICE | |
73223f0e | 254 | help |
266aa86b RD |
255 | Allows doing any sort of manipulation to blobs after they got extracted |
256 | from FIT images like stripping off headers or modifying the size of the | |
257 | blob, verification, authentication, decryption etc. in a platform or | |
258 | board specific way. In order to use this feature a platform or board- | |
259 | specific implementation of board_fit_image_post_process() must be | |
260 | provided. Also, anything done during this post-processing step would | |
261 | need to be comprehended in how the images were prepared before being | |
262 | injected into the FIT creation (i.e. the blobs would have been pre- | |
263 | processed before being added to the FIT image). | |
264 | ||
71139113 TR |
265 | if SPL |
266 | ||
266aa86b RD |
267 | config SPL_FIT |
268 | bool "Support Flattened Image Tree within SPL" | |
269 | depends on SPL | |
85c07a5a | 270 | select SPL_OF_LIBFDT |
266aa86b RD |
271 | |
272 | config SPL_FIT_SIGNATURE | |
273 | bool "Enable signature verification of FIT firmware within SPL" | |
266aa86b | 274 | depends on SPL_DM |
85c07a5a | 275 | select SPL_FIT |
266aa86b RD |
276 | select SPL_RSA |
277 | ||
278 | config SPL_LOAD_FIT | |
279 | bool "Enable SPL loading U-Boot as a FIT" | |
85c07a5a | 280 | select SPL_FIT |
266aa86b RD |
281 | help |
282 | Normally with the SPL framework a legacy image is generated as part | |
283 | of the build. This contains U-Boot along with information as to | |
284 | where it should be loaded. This option instead enables generation | |
285 | of a FIT (Flat Image Tree) which provides more flexibility. In | |
286 | particular it can handle selecting from multiple device tree | |
287 | and passing the correct one to U-Boot. | |
288 | ||
289 | config SPL_FIT_IMAGE_POST_PROCESS | |
290 | bool "Enable post-processing of FIT artifacts after loading by the SPL" | |
c12d8b7d | 291 | depends on SPL_LOAD_FIT |
266aa86b RD |
292 | help |
293 | Allows doing any sort of manipulation to blobs after they got extracted | |
294 | from the U-Boot FIT image like stripping off headers or modifying the | |
295 | size of the blob, verification, authentication, decryption etc. in a | |
296 | platform or board specific way. In order to use this feature a platform | |
297 | or board-specific implementation of board_fit_image_post_process() must | |
298 | be provided. Also, anything done during this post-processing step would | |
299 | need to be comprehended in how the images were prepared before being | |
300 | injected into the FIT creation (i.e. the blobs would have been pre- | |
301 | processed before being added to the FIT image). | |
302 | ||
1a12fdc4 AP |
303 | config SPL_FIT_SOURCE |
304 | string ".its source file for U-Boot FIT image" | |
305 | depends on SPL_FIT | |
306 | help | |
307 | Specifies a (platform specific) FIT source file to generate the | |
308 | U-Boot FIT image. This could specify further image to load and/or | |
309 | execute. | |
310 | ||
311 | config SPL_FIT_GENERATOR | |
312 | string ".its file generator script for U-Boot FIT image" | |
313 | depends on SPL_FIT | |
d29adf8e | 314 | default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI |
1a12fdc4 AP |
315 | help |
316 | Specifies a (platform specific) script file to generate the FIT | |
317 | source file used to build the U-Boot FIT image file. This gets | |
318 | passed a list of supported device tree file stub names to | |
319 | include in the generated image. | |
320 | ||
71139113 TR |
321 | endif # SPL |
322 | ||
266aa86b | 323 | endif # FIT |
73223f0e SG |
324 | |
325 | config OF_BOARD_SETUP | |
326 | bool "Set up board-specific details in device tree before boot" | |
327 | depends on OF_LIBFDT | |
328 | help | |
329 | This causes U-Boot to call ft_board_setup() before booting into | |
330 | the Operating System. This function can set up various | |
331 | board-specific information in the device tree for use by the OS. | |
332 | The device tree is then passed to the OS. | |
333 | ||
334 | config OF_SYSTEM_SETUP | |
335 | bool "Set up system-specific details in device tree before boot" | |
336 | depends on OF_LIBFDT | |
337 | help | |
338 | This causes U-Boot to call ft_system_setup() before booting into | |
339 | the Operating System. This function can set up various | |
340 | system-specific information in the device tree for use by the OS. | |
341 | The device tree is then passed to the OS. | |
342 | ||
343 | config OF_STDOUT_VIA_ALIAS | |
344 | bool "Update the device-tree stdout alias from U-Boot" | |
345 | depends on OF_LIBFDT | |
346 | help | |
347 | This uses U-Boot's serial alias from the aliases node to update | |
348 | the device tree passed to the OS. The "linux,stdout-path" property | |
349 | in the chosen node is set to point to the correct serial node. | |
350 | This option currently references CONFIG_CONS_INDEX, which is | |
351 | incorrect when used with device tree as this option does not | |
352 | exist / should not be used. | |
b6cf4439 | 353 | |
51631259 MY |
354 | config SYS_EXTRA_OPTIONS |
355 | string "Extra Options (DEPRECATED)" | |
51631259 MY |
356 | help |
357 | The old configuration infrastructure (= mkconfig + boards.cfg) | |
ed36323f | 358 | provided the extra options field. If you have something like |
51631259 MY |
359 | "HAS_BAR,BAZ=64", the optional options |
360 | #define CONFIG_HAS | |
361 | #define CONFIG_BAZ 64 | |
362 | will be defined in include/config.h. | |
363 | This option was prepared for the smooth migration from the old | |
364 | configuration to Kconfig. Since this option will be removed sometime, | |
365 | new boards should not use this option. | |
366 | ||
7f7563ce | 367 | config SYS_TEXT_BASE |
936478e7 | 368 | depends on ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \ |
6ebf8a4a | 369 | (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE || MIPS || \ |
7e0ed13f | 370 | ARCH_ZYNQ || ARCH_KEYSTONE || ARCH_OMAP2PLUS |
484cce0d | 371 | depends on !EFI_APP |
7f7563ce MY |
372 | hex "Text Base" |
373 | help | |
374 | TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture | |
375 | ||
7e0ed13f AF |
376 | default 0x80800000 if ARCH_OMAP2PLUS |
377 | ||
eba3fbd6 | 378 | |
33d88183 | 379 | config SYS_CLK_FREQ |
e71b422b | 380 | depends on ARC || ARCH_SUNXI |
33d88183 AB |
381 | int "CPU clock frequency" |
382 | help | |
383 | TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture | |
384 | ||
63c09417 MY |
385 | config ARCH_FIXUP_FDT_MEMORY |
386 | bool "Enable arch_fixup_memory_banks() call" | |
e2f88dfd MS |
387 | default y |
388 | help | |
389 | Enable FDT memory map syncup before OS boot. This feature can be | |
390 | used for booting OS with different memory setup where the part of | |
391 | the memory location should be used for different purpose. | |
392 | ||
e91c3c33 | 393 | endmenu # Boot images |
51631259 | 394 | |
4db98d3d EV |
395 | source "api/Kconfig" |
396 | ||
ed36323f MY |
397 | source "common/Kconfig" |
398 | ||
72a8cf8d SG |
399 | source "cmd/Kconfig" |
400 | ||
e274ef6b PD |
401 | source "disk/Kconfig" |
402 | ||
783e6a72 MY |
403 | source "dts/Kconfig" |
404 | ||
0649cd0d SG |
405 | source "env/Kconfig" |
406 | ||
ed36323f MY |
407 | source "net/Kconfig" |
408 | ||
409 | source "drivers/Kconfig" | |
410 | ||
411 | source "fs/Kconfig" | |
412 | ||
413 | source "lib/Kconfig" | |
1967982a SG |
414 | |
415 | source "test/Kconfig" |