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Commit | Line | Data |
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11bde1cd SG |
1 | menu "SPL / TPL" |
2 | ||
c2ae7d82 SG |
3 | config SUPPORT_SPL |
4 | bool | |
5 | ||
6 | config SUPPORT_TPL | |
7 | bool | |
8 | ||
66928afb R |
9 | config SPL_DFU_NO_RESET |
10 | bool | |
11 | ||
c2ae7d82 SG |
12 | config SPL |
13 | bool | |
14 | depends on SUPPORT_SPL | |
15 | prompt "Enable SPL" | |
16 | help | |
17 | If you want to build SPL as well as the normal image, say Y. | |
18 | ||
75670c81 TR |
19 | config SPL_FRAMEWORK |
20 | bool "Support SPL based upon the common SPL framework" | |
21 | depends on SPL | |
22 | default y | |
23 | help | |
24 | Enable the SPL framework under common/spl/. This framework | |
25 | supports MMC, NAND and YMODEM and other methods loading of U-Boot | |
26 | and the Linux Kernel. If unsure, say Y. | |
27 | ||
a9a3aada PR |
28 | config SPL_FRAMEWORK_BOARD_INIT_F |
29 | bool "Define a generic function board_init_f" | |
30 | depends on SPL_FRAMEWORK | |
31 | help | |
32 | Define a generic function board_init_f that: | |
33 | - initialize the spl (spl_early_init) | |
34 | - initialize the serial (preloader_console_init) | |
35 | Unless you want to provide your own board_init_f, you should say Y. | |
36 | ||
2577015d | 37 | config SPL_SIZE_LIMIT |
b51882d0 | 38 | hex "Maximum size of SPL image" |
2577015d | 39 | depends on SPL |
06f5b5a5 RH |
40 | default 69632 if ARCH_MX6 && !MX6_OCRAM_256KB |
41 | default 200704 if ARCH_MX6 && MX6_OCRAM_256KB | |
2577015d SG |
42 | default 0 |
43 | help | |
44 | Specifies the maximum length of the U-Boot SPL image. | |
45 | If this value is zero, it is ignored. | |
46 | ||
47 | config SPL_SIZE_LIMIT_SUBTRACT_GD | |
48 | bool "SPL image size check: provide space for global data" | |
49 | depends on SPL_SIZE_LIMIT > 0 | |
50 | help | |
51 | If enabled, aligned size of global data is reserved in | |
52 | SPL_SIZE_LIMIT check to ensure such an image does not overflow SRAM | |
53 | if SPL_SIZE_LIMIT describes the size of SRAM available for SPL when | |
54 | pre-reloc global data is put into this SRAM, too. | |
55 | ||
56 | config SPL_SIZE_LIMIT_SUBTRACT_MALLOC | |
57 | bool "SPL image size check: provide space for malloc() pool before relocation" | |
58 | depends on SPL_SIZE_LIMIT > 0 | |
59 | help | |
60 | If enabled, SPL_SYS_MALLOC_F_LEN is reserved in SPL_SIZE_LIMIT check | |
61 | to ensure such an image does not overflow SRAM if SPL_SIZE_LIMIT | |
62 | describes the size of SRAM available for SPL when pre-reloc malloc | |
63 | pool is put into this SRAM, too. | |
64 | ||
65 | config SPL_SIZE_LIMIT_PROVIDE_STACK | |
66 | hex "SPL image size check: provide stack space before relocation" | |
67 | depends on SPL_SIZE_LIMIT > 0 | |
68 | default 0 | |
69 | help | |
70 | If set, this size is reserved in SPL_SIZE_LIMIT check to ensure such | |
71 | an image does not overflow SRAM if SPL_SIZE_LIMIT describes the size | |
72 | of SRAM available for SPL when the stack required before reolcation | |
73 | uses this SRAM, too. | |
74 | ||
d8c03320 SG |
75 | config SPL_SYS_STACK_F_CHECK_BYTE |
76 | hex | |
77 | default 0xaa | |
78 | help | |
79 | Constant used to check the stack | |
80 | ||
81 | config SPL_SYS_REPORT_STACK_F_USAGE | |
82 | depends on SPL_SIZE_LIMIT_PROVIDE_STACK != 0 | |
83 | bool "Check and report stack usage in SPL before relocation" | |
84 | help | |
85 | If this option is enabled, the initial SPL stack is filled with 0xaa | |
86 | very early, up to the size configured with | |
87 | SPL_SIZE_LIMIT_PROVIDE_STACK. | |
88 | Later when SPL is done using this initial stack and switches to a | |
89 | stack in DRAM, the actually used size of this initial stack is | |
90 | reported by examining the memory and searching for the lowest | |
91 | occurrence of non 0xaa bytes. | |
92 | This default implementation works for stacks growing down only. | |
93 | ||
db4080d5 TR |
94 | menu "PowerPC SPL Boot options" |
95 | depends on PPC && (SUPPORT_SPL && !SPL_FRAMEWORK) | |
96 | ||
97 | config SPL_NAND_BOOT | |
98 | bool "Load SPL from NAND flash" | |
99 | ||
100 | config SPL_MMC_BOOT | |
101 | bool "Load SPL from SD Card / eMMC" | |
102 | ||
103 | config SPL_SPI_BOOT | |
104 | bool "Load SPL from SPI flash" | |
105 | ||
106 | config SPL_FSL_PBL | |
107 | bool "Create SPL in Freescale PBI format" | |
108 | help | |
109 | Create boot binary having SPL binary in PBI format concatenated with | |
110 | u-boot binary. | |
111 | ||
112 | endmenu | |
113 | ||
b0edea3c SG |
114 | config HANDOFF |
115 | bool "Pass hand-off information from SPL to U-Boot proper" | |
116 | depends on BLOBLIST | |
117 | help | |
118 | It is useful to be able to pass information from SPL to U-Boot | |
119 | proper to preserve state that is known in SPL and is needed in U-Boot. | |
120 | Enable this to locate the handoff information in U-Boot proper, early | |
121 | in boot. It is available in gd->handoff. The state state is set up | |
122 | in SPL (or TPL if that is being used). | |
123 | ||
226498b8 TR |
124 | if SPL |
125 | ||
b0edea3c SG |
126 | config SPL_HANDOFF |
127 | bool "Pass hand-off information from SPL to U-Boot proper" | |
a7da3d98 | 128 | depends on HANDOFF && SPL_BLOBLIST |
b0edea3c SG |
129 | default y |
130 | help | |
131 | This option enables SPL to write handoff information. This can be | |
132 | used to pass information like the size of SDRAM from SPL to U-Boot | |
133 | proper. Also SPL can receive information from TPL in the same place | |
134 | if that is enabled. | |
135 | ||
dd6fbcb9 PT |
136 | config SPL_LDSCRIPT |
137 | string "Linker script for the SPL stage" | |
138 | default "arch/$(ARCH)/cpu/u-boot-spl.lds" | |
dd6fbcb9 PT |
139 | help |
140 | The SPL stage will usually require a different linker-script | |
141 | (as it runs from a different memory region) than the regular | |
142 | U-Boot stage. Set this to the path of the linker-script to | |
143 | be used for SPL. | |
144 | ||
f89d6133 SG |
145 | config SPL_TEXT_BASE |
146 | hex "SPL Text Base" | |
147 | default ISW_ENTRY_ADDR if AM43XX || AM33XX || OMAP54XX || ARCH_KEYSTONE | |
9340d8fe AP |
148 | default 0x10060 if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN9I |
149 | default 0x20060 if MACH_SUN50I_H6 | |
150 | default 0x00060 if ARCH_SUNXI | |
0413f9c3 | 151 | default 0xfffc0000 if ARCH_ZYNQMP |
f89d6133 SG |
152 | default 0x0 |
153 | help | |
154 | The address in memory that SPL will be running from. | |
155 | ||
0680f1b1 | 156 | config SPL_BOARD_INIT |
0680f1b1 LFT |
157 | bool "Call board-specific initialization in SPL" |
158 | help | |
159 | If this option is enabled, U-Boot will call the function | |
160 | spl_board_init() from board_init_r(). This function should be | |
161 | provided by the board. | |
162 | ||
225d30b7 PT |
163 | config SPL_BOOTROM_SUPPORT |
164 | bool "Support returning to the BOOTROM" | |
165 | help | |
166 | Some platforms (e.g. the Rockchip RK3368) provide support in their | |
167 | ROM for loading the next boot-stage after performing basic setup | |
168 | from the SPL stage. | |
169 | ||
170 | Enable this option, to return to the BOOTROM through the | |
171 | BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the | |
172 | boot device list, if not implemented for a given board) | |
173 | ||
afa9609e LM |
174 | config SPL_BOOTCOUNT_LIMIT |
175 | bool "Support bootcount in SPL" | |
176 | depends on SPL_ENV_SUPPORT | |
177 | help | |
178 | On some boards, which use 'falcon' mode, it is necessary to check | |
179 | and increment the number of boot attempts. Such boards do not | |
180 | use proper U-Boot for normal boot flow and hence needs those | |
181 | adjustments to be done in the SPL. | |
182 | ||
24eb39b5 AD |
183 | config SPL_RAW_IMAGE_SUPPORT |
184 | bool "Support SPL loading and booting of RAW images" | |
24eb39b5 | 185 | default n if (ARCH_MX6 && (SPL_MMC_SUPPORT || SPL_SATA_SUPPORT)) |
ae9b57b5 | 186 | default y if !TI_SECURE_DEVICE |
24eb39b5 AD |
187 | help |
188 | SPL will support loading and booting a RAW image when this option | |
189 | is y. If this is not set, SPL will move on to other available | |
190 | boot media to find a suitable image. | |
191 | ||
722a6b17 AD |
192 | config SPL_LEGACY_IMAGE_SUPPORT |
193 | bool "Support SPL loading and booting of Legacy images" | |
11bd2fa1 | 194 | default y if !TI_SECURE_DEVICE && !SPL_LOAD_FIT |
722a6b17 AD |
195 | help |
196 | SPL will support loading and booting Legacy images when this option | |
197 | is y. If this is not set, SPL will move on to other available | |
198 | boot media to find a suitable image. | |
199 | ||
dae5c2dc SG |
200 | config SPL_LEGACY_IMAGE_CRC_CHECK |
201 | bool "Check CRC of Legacy images" | |
202 | depends on SPL_LEGACY_IMAGE_SUPPORT | |
203 | select SPL_CRC32_SUPPORT | |
204 | help | |
205 | Enable this to check the CRC of Legacy images. While this increases | |
206 | reliability, it affects both code size and boot duration. | |
207 | If disabled, Legacy images are booted if the image magic and size | |
208 | are correct, without further integrity checks. | |
209 | ||
c2ae7d82 SG |
210 | config SPL_SYS_MALLOC_SIMPLE |
211 | bool | |
c2ae7d82 SG |
212 | prompt "Only use malloc_simple functions in the SPL" |
213 | help | |
214 | Say Y here to only use the *_simple malloc functions from | |
215 | malloc_simple.c, rather then using the versions from dlmalloc.c; | |
216 | this will make the SPL binary smaller at the cost of more heap | |
217 | usage as the *_simple malloc functions do not re-use free-ed mem. | |
218 | ||
d60b5f74 PT |
219 | config TPL_SYS_MALLOC_SIMPLE |
220 | bool | |
221 | prompt "Only use malloc_simple functions in the TPL" | |
05705566 | 222 | depends on TPL |
d60b5f74 PT |
223 | help |
224 | Say Y here to only use the *_simple malloc functions from | |
225 | malloc_simple.c, rather then using the versions from dlmalloc.c; | |
226 | this will make the TPL binary smaller at the cost of more heap | |
227 | usage as the *_simple malloc functions do not re-use free-ed mem. | |
228 | ||
c2ae7d82 | 229 | config SPL_STACK_R |
c2ae7d82 SG |
230 | bool "Enable SDRAM location for SPL stack" |
231 | help | |
232 | SPL starts off execution in SRAM and thus typically has only a small | |
233 | stack available. Since SPL sets up DRAM while in its board_init_f() | |
234 | function, it is possible for the stack to move there before | |
235 | board_init_r() is reached. This option enables a special SDRAM | |
236 | location for the SPL stack. U-Boot SPL switches to this after | |
237 | board_init_f() completes, and before board_init_r() starts. | |
238 | ||
239 | config SPL_STACK_R_ADDR | |
240 | depends on SPL_STACK_R | |
241 | hex "SDRAM location for SPL stack" | |
ff6c3125 | 242 | default 0x82000000 if ARCH_OMAP2PLUS |
c2ae7d82 SG |
243 | help |
244 | Specify the address in SDRAM for the SPL stack. This will be set up | |
245 | before board_init_r() is called. | |
246 | ||
247 | config SPL_STACK_R_MALLOC_SIMPLE_LEN | |
248 | depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE | |
249 | hex "Size of malloc_simple heap after switching to DRAM SPL stack" | |
250 | default 0x100000 | |
251 | help | |
252 | Specify the amount of the stack to use as memory pool for | |
253 | malloc_simple after switching the stack to DRAM. This may be set | |
254 | to give board_init_r() a larger heap then the initial heap in | |
255 | SRAM which is limited to SYS_MALLOC_F_LEN bytes. | |
256 | ||
257 | config SPL_SEPARATE_BSS | |
c2ae7d82 SG |
258 | bool "BSS section is in a different memory region from text" |
259 | help | |
260 | Some platforms need a large BSS region in SPL and can provide this | |
261 | because RAM is already set up. In this case BSS can be moved to RAM. | |
262 | This option should then be enabled so that the correct device tree | |
263 | location is used. Normally we put the device tree at the end of BSS | |
264 | but with this option enabled, it goes at _image_binary_end. | |
265 | ||
aedc08b2 SG |
266 | config SPL_BANNER_PRINT |
267 | bool "Enable output of the SPL banner 'U-Boot SPL ...'" | |
268 | default y | |
269 | help | |
270 | If this option is enabled, SPL will print the banner with version | |
271 | info. Disabling this option could be useful to reduce TPL boot time | |
272 | (e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud). | |
273 | ||
274 | config TPL_BANNER_PRINT | |
275 | bool "Enable output of the TPL banner 'U-Boot TPL ...'" | |
05705566 | 276 | depends on TPL |
aedc08b2 | 277 | default y |
0292bc0d AG |
278 | help |
279 | If this option is enabled, SPL will not print the banner with version | |
aedc08b2 SG |
280 | info. Disabling this option could be useful to reduce SPL boot time |
281 | (e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud). | |
0292bc0d | 282 | |
a5a5d997 AD |
283 | config SPL_EARLY_BSS |
284 | depends on ARM && !ARM64 | |
285 | bool "Allows initializing BSS early before entering board_init_f" | |
286 | help | |
287 | On some platform we have sufficient memory available early on to | |
288 | allow setting up and using a basic BSS prior to entering | |
289 | board_init_f. Activating this option will also de-activate the | |
290 | clearing of BSS during the SPL relocation process, thus allowing | |
291 | to carry state from board_init_f to board_init_r by way of BSS. | |
292 | ||
a807ab33 | 293 | config SPL_DISPLAY_PRINT |
a807ab33 SG |
294 | bool "Display a board-specific message in SPL" |
295 | help | |
296 | If this option is enabled, U-Boot will call the function | |
297 | spl_display_print() immediately after displaying the SPL console | |
298 | banner ("U-Boot SPL ..."). This function should be provided by | |
299 | the board. | |
300 | ||
38fed8ab SP |
301 | config SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
302 | bool "MMC raw mode: by sector" | |
1da1938d FE |
303 | default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER || \ |
304 | ARCH_MX6 || ARCH_MX7 || \ | |
38fed8ab SP |
305 | ARCH_ROCKCHIP || ARCH_MVEBU || ARCH_SOCFPGA || \ |
306 | ARCH_AT91 || ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || \ | |
307 | OMAP44XX || OMAP54XX || AM33XX || AM43XX | |
308 | help | |
309 | Use sector number for specifying U-Boot location on MMC/SD in | |
310 | raw mode. | |
311 | ||
312 | config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR | |
313 | hex "Address on the MMC to load U-Boot from" | |
226498b8 | 314 | depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
38fed8ab SP |
315 | default 0x50 if ARCH_SUNXI |
316 | default 0x75 if ARCH_DAVINCI | |
1da1938d | 317 | default 0x8a if ARCH_MX6 || ARCH_MX7 |
8f4d62b4 | 318 | default 0x100 if ARCH_UNIPHIER |
38fed8ab SP |
319 | default 0x140 if ARCH_MVEBU |
320 | default 0x200 if ARCH_SOCFPGA || ARCH_AT91 | |
321 | default 0x300 if ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || OMAP44XX || \ | |
586bde93 | 322 | OMAP54XX || AM33XX || AM43XX || ARCH_K3 |
8f4d62b4 | 323 | default 0x4000 if ARCH_ROCKCHIP |
38fed8ab SP |
324 | help |
325 | Address on the MMC to load U-Boot from, when the MMC is being used | |
326 | in raw mode. Units: MMC sectors (1 sector = 512 bytes). | |
327 | ||
949123e3 DW |
328 | config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION |
329 | bool "MMC Raw mode: by partition" | |
949123e3 DW |
330 | help |
331 | Use a partition for loading U-Boot when using MMC/SD in raw mode. | |
332 | ||
333 | config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION | |
334 | hex "Partition to use to load U-Boot from" | |
226498b8 | 335 | depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION |
949123e3 DW |
336 | default 1 |
337 | help | |
338 | Partition on the MMC to load U-Boot from when the MMC is being | |
339 | used in raw mode | |
340 | ||
f0fb4fa7 DW |
341 | config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE |
342 | bool "MMC raw mode: by partition type" | |
226498b8 | 343 | depends on DOS_PARTITION && SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION |
f0fb4fa7 DW |
344 | help |
345 | Use partition type for specifying U-Boot partition on MMC/SD in | |
346 | raw mode. U-Boot will be loaded from the first partition of this | |
347 | type to be found. | |
348 | ||
349 | config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE | |
350 | hex "Partition Type on the MMC to load U-Boot from" | |
226498b8 | 351 | depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE |
f0fb4fa7 DW |
352 | help |
353 | Partition Type on the MMC to load U-Boot from, when the MMC is being | |
354 | used in raw mode. | |
355 | ||
32ded502 AG |
356 | config SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG |
357 | bool "Override eMMC EXT_CSC_PART_CONFIG by user defined partition" | |
358 | depends on SUPPORT_EMMC_BOOT | |
359 | help | |
360 | eMMC boot partition is normally configured by the bits of the EXT_CSD | |
361 | register (EXT_CSC_PART_CONFIG), BOOT_PARTITION_ENABLE field. In some | |
362 | cases it might be required in SPL to load the image from different | |
363 | partition than the partition selected by EXT_CSC_PART_CONFIG register. | |
364 | Enable this option if you intend to use an eMMC boot partition other | |
365 | then selected via EXT_CSC_PART_CONFIG register and specify the custom | |
366 | partition number by the CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION | |
367 | option. | |
368 | ||
369 | config SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION | |
370 | int "Number of the eMMC boot partition to use" | |
371 | depends on SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG | |
372 | default 1 | |
373 | help | |
374 | eMMC boot partition number to use when the eMMC in raw mode and | |
375 | the eMMC EXT_CSC_PART_CONFIG selection should be overridden in SPL | |
376 | by user defined partition number. | |
377 | ||
11bde1cd SG |
378 | config SPL_CRC32_SUPPORT |
379 | bool "Support CRC32" | |
dae5c2dc | 380 | default y if SPL_LEGACY_IMAGE_SUPPORT |
11bde1cd | 381 | help |
dae5c2dc SG |
382 | Enable this to support CRC32 in uImages or FIT images within SPL. |
383 | This is a 32-bit checksum value that can be used to verify images. | |
384 | For FIT images, this is the least secure type of checksum, suitable | |
385 | for detected accidental image corruption. For secure applications you | |
386 | should consider SHA1 or SHA256. | |
11bde1cd SG |
387 | |
388 | config SPL_MD5_SUPPORT | |
389 | bool "Support MD5" | |
390 | depends on SPL_FIT | |
391 | help | |
392 | Enable this to support MD5 in FIT images within SPL. An MD5 | |
393 | checksum is a 128-bit hash value used to check that the image | |
394 | contents have not been corrupted. Note that MD5 is not considered | |
395 | secure as it is possible (with a brute-force attack) to adjust the | |
396 | image while still retaining the same MD5 hash value. For secure | |
397 | applications where images may be changed maliciously, you should | |
398 | consider SHA1 or SHA256. | |
399 | ||
400 | config SPL_SHA1_SUPPORT | |
401 | bool "Support SHA1" | |
402 | depends on SPL_FIT | |
089df18b | 403 | select SHA1 |
11bde1cd SG |
404 | help |
405 | Enable this to support SHA1 in FIT images within SPL. A SHA1 | |
406 | checksum is a 160-bit (20-byte) hash value used to check that the | |
407 | image contents have not been corrupted or maliciously altered. | |
408 | While SHA1 is fairly secure it is coming to the end of its life | |
048a92ea | 409 | due to the expanding computing power available to brute-force |
11bde1cd SG |
410 | attacks. For more security, consider SHA256. |
411 | ||
412 | config SPL_SHA256_SUPPORT | |
413 | bool "Support SHA256" | |
414 | depends on SPL_FIT | |
089df18b | 415 | select SHA256 |
11bde1cd SG |
416 | help |
417 | Enable this to support SHA256 in FIT images within SPL. A SHA256 | |
418 | checksum is a 256-bit (32-byte) hash value used to check that the | |
419 | image contents have not been corrupted. SHA256 is recommended for | |
420 | use in secure applications since (as at 2016) there is no known | |
421 | feasible attack that could produce a 'collision' with differing | |
422 | input data. Use this for the highest security. Note that only the | |
423 | SHA256 variant is supported: SHA512 and others are not currently | |
424 | supported in U-Boot. | |
425 | ||
337bbb62 PT |
426 | config SPL_FIT_IMAGE_TINY |
427 | bool "Remove functionality from SPL FIT loading to reduce size" | |
428 | depends on SPL_FIT | |
6f796a9b | 429 | default y if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN50I_H6 |
f6282cdd | 430 | default y if ARCH_IMX8M |
337bbb62 PT |
431 | help |
432 | Enable this to reduce the size of the FIT image loading code | |
433 | in SPL, if space for the SPL binary is very tight. | |
434 | ||
435 | This removes the detection of image types (which forces the | |
436 | first image to be treated as having a U-Boot style calling | |
437 | convention) and skips the recording of each loaded payload | |
438 | (i.e. loadable) into the FDT (modifying the loaded FDT to | |
439 | ensure this information is available to the next image | |
440 | invoked). | |
441 | ||
5e148df9 SG |
442 | config SPL_CPU_SUPPORT |
443 | bool "Support CPU drivers" | |
5e148df9 SG |
444 | help |
445 | Enable this to support CPU drivers in SPL. These drivers can set | |
446 | up CPUs and provide information about them such as the model and | |
447 | name. This can be useful in SPL since setting up the CPUs earlier | |
448 | may improve boot performance. Enable this option to build the | |
449 | drivers in drivers/cpu as part of an SPL build. | |
450 | ||
11bde1cd SG |
451 | config SPL_CRYPTO_SUPPORT |
452 | bool "Support crypto drivers" | |
11bde1cd SG |
453 | help |
454 | Enable crypto drivers in SPL. These drivers can be used to | |
455 | accelerate secure boot processing in secure applications. Enable | |
456 | this option to build the drivers in drivers/crypto as part of an | |
457 | SPL build. | |
458 | ||
459 | config SPL_HASH_SUPPORT | |
460 | bool "Support hashing drivers" | |
089df18b TR |
461 | select SHA1 |
462 | select SHA256 | |
11bde1cd SG |
463 | help |
464 | Enable hashing drivers in SPL. These drivers can be used to | |
465 | accelerate secure boot processing in secure applications. Enable | |
466 | this option to build system-specific drivers for hash acceleration | |
467 | as part of an SPL build. | |
468 | ||
2d424eb0 SG |
469 | config TPL_HASH_SUPPORT |
470 | bool "Support hashing drivers in TPL" | |
a074667d | 471 | depends on TPL |
2d424eb0 SG |
472 | select SHA1 |
473 | select SHA256 | |
474 | help | |
475 | Enable hashing drivers in SPL. These drivers can be used to | |
476 | accelerate secure boot processing in secure applications. Enable | |
477 | this option to build system-specific drivers for hash acceleration | |
478 | as part of an SPL build. | |
479 | ||
11bde1cd SG |
480 | config SPL_DMA_SUPPORT |
481 | bool "Support DMA drivers" | |
11bde1cd SG |
482 | help |
483 | Enable DMA (direct-memory-access) drivers in SPL. These drivers | |
484 | can be used to handle memory-to-peripheral data transfer without | |
485 | the CPU moving the data. Enable this option to build the drivers | |
486 | in drivers/dma as part of an SPL build. | |
487 | ||
488 | config SPL_DRIVERS_MISC_SUPPORT | |
489 | bool "Support misc drivers" | |
11bde1cd SG |
490 | help |
491 | Enable miscellaneous drivers in SPL. These drivers perform various | |
492 | tasks that don't fall nicely into other categories, Enable this | |
493 | option to build the drivers in drivers/misc as part of an SPL | |
494 | build, for those that support building in SPL (not all drivers do). | |
495 | ||
496 | config SPL_ENV_SUPPORT | |
497 | bool "Support an environment" | |
11bde1cd SG |
498 | help |
499 | Enable environment support in SPL. The U-Boot environment provides | |
500 | a number of settings (essentially name/value pairs) which can | |
501 | control many aspects of U-Boot's operation. Normally this is not | |
502 | needed in SPL as it has a much simpler task with less | |
503 | configuration. But some boards use this to support 'Falcon' boot | |
504 | on EXT2 and FAT, where SPL boots directly into Linux without | |
00caae6d | 505 | starting U-Boot first. Enabling this option will make env_get() |
382bee57 | 506 | and env_set() available in SPL. |
11bde1cd | 507 | |
d2d9bdfc R |
508 | config SPL_SAVEENV |
509 | bool "Support save environment" | |
226498b8 | 510 | depends on SPL_ENV_SUPPORT |
d6400c3f | 511 | select SPL_MMC_WRITE if ENV_IS_IN_MMC |
d2d9bdfc R |
512 | help |
513 | Enable save environment support in SPL after setenv. By default | |
514 | the saveenv option is not provided in SPL, but some boards need | |
515 | this support in 'Falcon' boot, where SPL need to boot from | |
516 | different images based on environment variable set by OS. For | |
517 | example OS may set "reboot_image" environment variable to | |
518 | "recovery" inorder to boot recovery image by SPL. The SPL read | |
519 | "reboot_image" and act accordingly and change the reboot_image | |
919d25c9 | 520 | to default mode using setenv and save the environment. |
d2d9bdfc | 521 | |
11bde1cd SG |
522 | config SPL_ETH_SUPPORT |
523 | bool "Support Ethernet" | |
524 | depends on SPL_ENV_SUPPORT | |
525 | help | |
526 | Enable access to the network subsystem and associated Ethernet | |
527 | drivers in SPL. This permits SPL to load U-Boot over an Ethernet | |
528 | link rather than from an on-board peripheral. Environment support | |
529 | is required since the network stack uses a number of environment | |
530 | variables. See also SPL_NET_SUPPORT. | |
531 | ||
f4b40924 | 532 | config SPL_FS_EXT4 |
11bde1cd | 533 | bool "Support EXT filesystems" |
11bde1cd SG |
534 | help |
535 | Enable support for EXT2/3/4 filesystems with SPL. This permits | |
536 | U-Boot (or Linux in Falcon mode) to be loaded from an EXT | |
537 | filesystem from within SPL. Support for the underlying block | |
538 | device (e.g. MMC or USB) must be enabled separately. | |
539 | ||
0c3a9ed4 | 540 | config SPL_FS_FAT |
11bde1cd | 541 | bool "Support FAT filesystems" |
eedfb89e | 542 | select FS_FAT |
11bde1cd SG |
543 | help |
544 | Enable support for FAT and VFAT filesystems with SPL. This | |
545 | permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT | |
546 | filesystem from within SPL. Support for the underlying block | |
547 | device (e.g. MMC or USB) must be enabled separately. | |
548 | ||
d8c3ea99 TFC |
549 | config SPL_FAT_WRITE |
550 | bool "Support write for FAT filesystems" | |
551 | help | |
552 | Enable write support for FAT and VFAT filesystems with SPL. | |
553 | Support for the underlying block device (e.g. MMC or USB) must be | |
554 | enabled separately. | |
555 | ||
11bde1cd SG |
556 | config SPL_FPGA_SUPPORT |
557 | bool "Support FPGAs" | |
11bde1cd SG |
558 | help |
559 | Enable support for FPGAs in SPL. Field-programmable Gate Arrays | |
560 | provide software-configurable hardware which is typically used to | |
561 | implement peripherals (such as UARTs, LCD displays, MMC) or | |
562 | accelerate custom processing functions, such as image processing | |
563 | or machine learning. Sometimes it is useful to program the FPGA | |
564 | as early as possible during boot, and this option can enable that | |
565 | within SPL. | |
566 | ||
567 | config SPL_GPIO_SUPPORT | |
2d424eb0 | 568 | bool "Support GPIO in SPL" |
11bde1cd SG |
569 | help |
570 | Enable support for GPIOs (General-purpose Input/Output) in SPL. | |
571 | GPIOs allow U-Boot to read the state of an input line (high or | |
572 | low) and set the state of an output line. This can be used to | |
573 | drive LEDs, control power to various system parts and read user | |
574 | input. GPIOs can be useful in SPL to enable a 'sign-of-life' LED, | |
575 | for example. Enable this option to build the drivers in | |
576 | drivers/gpio as part of an SPL build. | |
577 | ||
578 | config SPL_I2C_SUPPORT | |
579 | bool "Support I2C" | |
11bde1cd SG |
580 | help |
581 | Enable support for the I2C (Inter-Integrated Circuit) bus in SPL. | |
582 | I2C works with a clock and data line which can be driven by a | |
583 | one or more masters or slaves. It is a fairly complex bus but is | |
584 | widely used as it only needs two lines for communication. Speeds of | |
585 | 400kbps are typical but up to 3.4Mbps is supported by some | |
586 | hardware. I2C can be useful in SPL to configure power management | |
587 | ICs (PMICs) before raising the CPU clock speed, for example. | |
588 | Enable this option to build the drivers in drivers/i2c as part of | |
589 | an SPL build. | |
590 | ||
591 | config SPL_LIBCOMMON_SUPPORT | |
592 | bool "Support common libraries" | |
11bde1cd SG |
593 | help |
594 | Enable support for common U-Boot libraries within SPL. These | |
595 | libraries include common code to deal with U-Boot images, | |
596 | environment and USB, for example. This option is enabled on many | |
597 | boards. Enable this option to build the code in common/ as part of | |
598 | an SPL build. | |
599 | ||
600 | config SPL_LIBDISK_SUPPORT | |
00416704 | 601 | bool "Support disk partitions" |
91ff6865 | 602 | select PARTITIONS |
11bde1cd SG |
603 | help |
604 | Enable support for disk partitions within SPL. 'Disk' is something | |
605 | of a misnomer as it includes non-spinning media such as flash (as | |
606 | used in MMC and USB sticks). Partitions provide a way for a disk | |
607 | to be split up into separate regions, with a partition table placed | |
608 | at the start or end which describes the location and size of each | |
609 | 'partition'. These partitions are typically uses as individual block | |
610 | devices, typically with an EXT2 or FAT filesystem in each. This | |
611 | option enables whatever partition support has been enabled in | |
612 | U-Boot to also be used in SPL. It brings in the code in disk/. | |
613 | ||
614 | config SPL_LIBGENERIC_SUPPORT | |
615 | bool "Support generic libraries" | |
11bde1cd SG |
616 | help |
617 | Enable support for generic U-Boot libraries within SPL. These | |
618 | libraries include generic code to deal with device tree, hashing, | |
619 | printf(), compression and the like. This option is enabled on many | |
620 | boards. Enable this option to build the code in lib/ as part of an | |
621 | SPL build. | |
622 | ||
88027419 LV |
623 | config SPL_DM_MAILBOX |
624 | bool "Support Mailbox" | |
625 | help | |
626 | Enable support for Mailbox within SPL. This enable the inter | |
627 | processor communication protocols tobe used within SPL. Enable | |
628 | this option to build the drivers in drivers/mailbox as part of | |
629 | SPL build. | |
630 | ||
11bde1cd SG |
631 | config SPL_MMC_SUPPORT |
632 | bool "Support MMC" | |
226498b8 | 633 | depends on MMC |
91ff6865 | 634 | select HAVE_BLOCK_DEVICE |
11bde1cd SG |
635 | help |
636 | Enable support for MMC (Multimedia Card) within SPL. This enables | |
637 | the MMC protocol implementation and allows any enabled drivers to | |
638 | be used within SPL. MMC can be used with or without disk partition | |
639 | support depending on the application (SPL_LIBDISK_SUPPORT). Enable | |
640 | this option to build the drivers in drivers/mmc as part of an SPL | |
641 | build. | |
642 | ||
772b5572 LM |
643 | config SPL_FORCE_MMC_BOOT |
644 | bool "Force SPL booting from MMC" | |
645 | depends on SPL_MMC_SUPPORT | |
646 | default n | |
647 | help | |
648 | Force SPL to use MMC device for Linux kernel booting even when the | |
649 | SoC ROM recognized boot medium is not eMMC/SD. This is crucial for | |
650 | factory or 'falcon mode' booting. | |
651 | ||
bf7c01d9 EG |
652 | config SPL_MMC_TINY |
653 | bool "Tiny MMC framework in SPL" | |
654 | depends on SPL_MMC_SUPPORT | |
655 | default n | |
656 | help | |
657 | Enable MMC framework tinification support. This option is useful if | |
658 | if your SPL is extremely size constrained. Heed the warning, enable | |
659 | this option if and only if you know exactly what you are doing, if | |
660 | you are reading this help text, you most likely have no idea :-) | |
661 | ||
662 | The MMC framework is reduced to bare minimum to be useful. No malloc | |
663 | support is needed for the MMC framework operation with this option | |
664 | enabled. The framework supports exactly one MMC device and exactly | |
665 | one MMC driver. The MMC driver can be adjusted to avoid any malloc | |
666 | operations too, which can remove the need for malloc support in SPL | |
667 | and thus further reduce footprint. | |
668 | ||
d6400c3f JJH |
669 | config SPL_MMC_WRITE |
670 | bool "MMC/SD/SDIO card support for write operations in SPL" | |
671 | depends on SPL_MMC_SUPPORT | |
672 | default n | |
673 | help | |
674 | Enable write access to MMC and SD Cards in SPL | |
675 | ||
676 | ||
11bde1cd SG |
677 | config SPL_MPC8XXX_INIT_DDR_SUPPORT |
678 | bool "Support MPC8XXX DDR init" | |
11bde1cd SG |
679 | help |
680 | Enable support for DDR-SDRAM (double-data-rate synchronous dynamic | |
681 | random-access memory) on the MPC8XXX family within SPL. This | |
682 | allows DRAM to be set up before loading U-Boot into that DRAM, | |
683 | where it can run. | |
684 | ||
685 | config SPL_MTD_SUPPORT | |
686 | bool "Support MTD drivers" | |
11bde1cd SG |
687 | help |
688 | Enable support for MTD (Memory Technology Device) within SPL. MTD | |
689 | provides a block interface over raw NAND and can also be used with | |
690 | SPI flash. This allows SPL to load U-Boot from supported MTD | |
691 | devices. See SPL_NAND_SUPPORT and SPL_ONENAND_SUPPORT for how | |
692 | to enable specific MTD drivers. | |
693 | ||
694 | config SPL_MUSB_NEW_SUPPORT | |
695 | bool "Support new Mentor Graphics USB" | |
11bde1cd SG |
696 | help |
697 | Enable support for Mentor Graphics USB in SPL. This is a new | |
698 | driver used by some boards. Enable this option to build | |
699 | the drivers in drivers/usb/musb-new as part of an SPL build. The | |
700 | old drivers are in drivers/usb/musb. | |
701 | ||
702 | config SPL_NAND_SUPPORT | |
703 | bool "Support NAND flash" | |
11bde1cd SG |
704 | help |
705 | Enable support for NAND (Negative AND) flash in SPL. NAND flash | |
706 | can be used to allow SPL to load U-Boot from supported devices. | |
a430fa06 | 707 | This enables the drivers in drivers/mtd/nand/raw as part of an SPL |
11bde1cd SG |
708 | build. |
709 | ||
c67c3492 MK |
710 | config SPL_UBI |
711 | bool "Support UBI" | |
712 | help | |
713 | Enable support for loading payloads from UBI. See | |
714 | README.ubispl for more info. | |
715 | ||
f18845c2 LM |
716 | if SPL_DM |
717 | config SPL_DM_SPI | |
718 | bool "Support SPI DM drivers in SPL" | |
719 | help | |
720 | Enable support for SPI DM drivers in SPL. | |
721 | ||
722 | endif | |
c67c3492 | 723 | if SPL_UBI |
6ea31cce HG |
724 | config SPL_UBI_LOAD_BY_VOLNAME |
725 | bool "Support loading volumes by name" | |
726 | help | |
727 | This enables support for loading UBI volumes by name. When this | |
728 | is set, CONFIG_SPL_UBI_LOAD_MONITOR_VOLNAME can be used to | |
729 | configure the volume name from which to load U-Boot. | |
730 | ||
c67c3492 MK |
731 | config SPL_UBI_MAX_VOL_LEBS |
732 | int "Maximum number of LEBs per volume" | |
733 | depends on SPL_UBI | |
734 | help | |
735 | The maximum number of logical eraseblocks which a static volume | |
736 | to load can contain. Used for sizing the scan data structure. | |
737 | ||
738 | config SPL_UBI_MAX_PEB_SIZE | |
739 | int "Maximum PEB size" | |
740 | depends on SPL_UBI | |
741 | help | |
742 | The maximum physical erase block size. | |
743 | ||
744 | config SPL_UBI_MAX_PEBS | |
745 | int "Maximum number of PEBs" | |
746 | depends on SPL_UBI | |
747 | help | |
748 | The maximum physical erase block size. If not overridden by | |
749 | board code, this value will be used as the actual number of PEBs. | |
750 | ||
751 | config SPL_UBI_PEB_OFFSET | |
752 | int "Offset to first UBI PEB" | |
753 | depends on SPL_UBI | |
754 | help | |
755 | The offset in number of PEBs from the start of flash to the first | |
756 | PEB part of the UBI image. | |
757 | ||
758 | config SPL_UBI_VID_OFFSET | |
759 | int "Offset to VID header" | |
760 | depends on SPL_UBI | |
761 | ||
762 | config SPL_UBI_LEB_START | |
763 | int "Offset to LEB in PEB" | |
764 | depends on SPL_UBI | |
765 | help | |
766 | The offset in bytes to the LEB within a PEB. | |
767 | ||
768 | config SPL_UBI_INFO_ADDR | |
769 | hex "Address to place UBI scan info" | |
770 | depends on SPL_UBI | |
771 | help | |
772 | Address for ubispl to place the scan info. Read README.ubispl to | |
773 | determine the required size | |
774 | ||
775 | config SPL_UBI_VOL_IDS | |
776 | int "Maximum volume id" | |
777 | depends on SPL_UBI | |
778 | help | |
779 | The maximum volume id which can be loaded. Used for sizing the | |
780 | scan data structure. | |
781 | ||
782 | config SPL_UBI_LOAD_MONITOR_ID | |
783 | int "id of U-Boot volume" | |
784 | depends on SPL_UBI | |
785 | help | |
786 | The UBI volume id from which to load U-Boot | |
787 | ||
6ea31cce HG |
788 | config SPL_UBI_LOAD_MONITOR_VOLNAME |
789 | string "volume name of U-Boot volume" | |
790 | depends on SPL_UBI_LOAD_BY_VOLNAME | |
791 | help | |
792 | The UBI volume name from which to load U-Boot | |
793 | ||
c67c3492 MK |
794 | config SPL_UBI_LOAD_KERNEL_ID |
795 | int "id of kernel volume" | |
796 | depends on SPL_OS_BOOT && SPL_UBI | |
797 | help | |
798 | The UBI volume id from which to load the kernel | |
799 | ||
800 | config SPL_UBI_LOAD_ARGS_ID | |
801 | int "id of kernel args volume" | |
802 | depends on SPL_OS_BOOT && SPL_UBI | |
803 | help | |
804 | The UBI volume id from which to load the device tree | |
805 | ||
a2257d37 MK |
806 | config UBI_SPL_SILENCE_MSG |
807 | bool "silence UBI SPL messages" | |
808 | default n | |
809 | help | |
810 | Disable messages from UBI SPL. This leaves warnings | |
811 | and errors enabled. | |
c67c3492 MK |
812 | |
813 | endif # if SPL_UBI | |
814 | ||
11bde1cd SG |
815 | config SPL_NET_SUPPORT |
816 | bool "Support networking" | |
11bde1cd SG |
817 | help |
818 | Enable support for network devices (such as Ethernet) in SPL. | |
819 | This permits SPL to load U-Boot over a network link rather than | |
820 | from an on-board peripheral. Environment support is required since | |
821 | the network stack uses a number of environment variables. See also | |
822 | SPL_ETH_SUPPORT. | |
823 | ||
824 | if SPL_NET_SUPPORT | |
825 | config SPL_NET_VCI_STRING | |
826 | string "BOOTP Vendor Class Identifier string sent by SPL" | |
827 | help | |
828 | As defined by RFC 2132 the vendor class identifier field can be | |
829 | sent by the client to identify the vendor type and configuration | |
830 | of a client. This is often used in practice to allow for the DHCP | |
831 | server to specify different files to load depending on if the ROM, | |
832 | SPL or U-Boot itself makes the request | |
833 | endif # if SPL_NET_SUPPORT | |
834 | ||
835 | config SPL_NO_CPU_SUPPORT | |
836 | bool "Drop CPU code in SPL" | |
11bde1cd SG |
837 | help |
838 | This is specific to the ARM926EJ-S CPU. It disables the standard | |
839 | start.S start-up code, presumably so that a replacement can be | |
840 | used on that CPU. You should not enable it unless you know what | |
841 | you are doing. | |
842 | ||
843 | config SPL_NOR_SUPPORT | |
844 | bool "Support NOR flash" | |
11bde1cd SG |
845 | help |
846 | Enable support for loading U-Boot from memory-mapped NOR (Negative | |
847 | OR) flash in SPL. NOR flash is slow to write but fast to read, and | |
848 | a memory-mapped device makes it very easy to access. Loading from | |
849 | NOR is typically achieved with just a memcpy(). | |
850 | ||
c6d9e9db VM |
851 | config SPL_XIP_SUPPORT |
852 | bool "Support XIP" | |
853 | depends on SPL | |
854 | help | |
855 | Enable support for execute in place of U-Boot or kernel image. There | |
856 | is no need to copy image from flash to ram if flash supports execute | |
857 | in place. Its very useful in systems having enough flash but not | |
858 | enough ram to load the image. | |
859 | ||
11bde1cd SG |
860 | config SPL_ONENAND_SUPPORT |
861 | bool "Support OneNAND flash" | |
11bde1cd SG |
862 | help |
863 | Enable support for OneNAND (Negative AND) flash in SPL. OneNAND is | |
864 | a type of NAND flash and therefore can be used to allow SPL to | |
865 | load U-Boot from supported devices. This enables the drivers in | |
866 | drivers/mtd/onenand as part of an SPL build. | |
867 | ||
c20ae2ff HS |
868 | config SPL_OS_BOOT |
869 | bool "Activate Falcon Mode" | |
226498b8 | 870 | depends on !TI_SECURE_DEVICE |
c20ae2ff HS |
871 | default n |
872 | help | |
873 | Enable booting directly to an OS from SPL. | |
874 | for more info read doc/README.falcon | |
875 | ||
29d3bc79 HS |
876 | if SPL_OS_BOOT |
877 | config SYS_OS_BASE | |
878 | hex "addr, where OS is found" | |
226498b8 | 879 | depends on SPL_NOR_SUPPORT |
29d3bc79 HS |
880 | help |
881 | Specify the address, where the OS image is found, which | |
882 | gets booted. | |
883 | ||
884 | endif # SPL_OS_BOOT | |
885 | ||
7550dbe3 YS |
886 | config SPL_PAYLOAD |
887 | string "SPL payload" | |
888 | default "tpl/u-boot-with-tpl.bin" if TPL | |
889 | default "u-boot.bin" | |
890 | help | |
2dcfa058 | 891 | Payload for SPL boot. For backward compatibility, default to |
7550dbe3 YS |
892 | u-boot.bin, i.e. RAW image without any header. In case of |
893 | TPL, tpl/u-boot-with-tpl.bin. For new boards, suggest to | |
894 | use u-boot.img. | |
895 | ||
d50d6817 | 896 | config SPL_PCI |
2446b6b8 | 897 | bool "Support PCI drivers" |
2446b6b8 SG |
898 | help |
899 | Enable support for PCI in SPL. For platforms that need PCI to boot, | |
900 | or must perform some init using PCI in SPL, this provides the | |
901 | necessary driver support. This enables the drivers in drivers/pci | |
902 | as part of an SPL build. | |
903 | ||
bbe41abf SG |
904 | config SPL_PCH_SUPPORT |
905 | bool "Support PCH drivers" | |
bbe41abf SG |
906 | help |
907 | Enable support for PCH (Platform Controller Hub) devices in SPL. | |
908 | These are used to set up GPIOs and the SPI peripheral early in | |
909 | boot. This enables the drivers in drivers/pch as part of an SPL | |
910 | build. | |
911 | ||
11bde1cd SG |
912 | config SPL_POST_MEM_SUPPORT |
913 | bool "Support POST drivers" | |
11bde1cd SG |
914 | help |
915 | Enable support for POST (Power-on Self Test) in SPL. POST is a | |
916 | procedure that checks that the hardware (CPU or board) appears to | |
917 | be functionally correctly. It is a sanity check that can be | |
918 | performed before booting. This enables the drivers in post/drivers | |
919 | as part of an SPL build. | |
920 | ||
bfc6bae8 | 921 | config SPL_DM_RESET |
0e373c0a PD |
922 | bool "Support reset drivers" |
923 | depends on SPL | |
924 | help | |
925 | Enable support for reset control in SPL. | |
926 | That can be useful in SPL to handle IP reset in driver, as in U-Boot, | |
927 | by using the generic reset API provided by driver model. | |
928 | This enables the drivers in drivers/reset as part of an SPL build. | |
929 | ||
11bde1cd SG |
930 | config SPL_POWER_SUPPORT |
931 | bool "Support power drivers" | |
11bde1cd SG |
932 | help |
933 | Enable support for power control in SPL. This includes support | |
934 | for PMICs (Power-management Integrated Circuits) and some of the | |
935 | features provided by PMICs. In particular, voltage regulators can | |
936 | be used to enable/disable power and vary its voltage. That can be | |
937 | useful in SPL to turn on boot peripherals and adjust CPU voltage | |
938 | so that the clock speed can be increased. This enables the drivers | |
939 | in drivers/power, drivers/power/pmic and drivers/power/regulator | |
940 | as part of an SPL build. | |
941 | ||
e13278c9 PF |
942 | config SPL_POWER_DOMAIN |
943 | bool "Support power domain drivers" | |
944 | help | |
945 | Enable support for power domain control in SPL. Many SoCs allow | |
946 | power to be applied to or removed from portions of the SoC (power | |
947 | domains). This may be used to save power. This API provides the | |
948 | means to control such power management hardware. This enables | |
949 | the drivers in drivers/power/domain as part of a SPL build. | |
950 | ||
22802f4e SA |
951 | config SPL_RAM_SUPPORT |
952 | bool "Support booting from RAM" | |
22802f4e SA |
953 | default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ |
954 | help | |
955 | Enable booting of an image in RAM. The image can be preloaded or | |
956 | it can be loaded by SPL directly into RAM (e.g. using USB). | |
957 | ||
f417d40f SA |
958 | config SPL_RAM_DEVICE |
959 | bool "Support booting from preloaded image in RAM" | |
22802f4e | 960 | depends on SPL_RAM_SUPPORT |
f417d40f SA |
961 | default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ |
962 | help | |
963 | Enable booting of an image already loaded in RAM. The image has to | |
964 | be already in memory when SPL takes over, e.g. loaded by the boot | |
965 | ROM. | |
966 | ||
08c45314 LV |
967 | config SPL_REMOTEPROC |
968 | bool "Support REMOTEPROCS" | |
969 | help | |
970 | Enable support for REMOTEPROCs in SPL. This permits to load | |
971 | a remote processor firmware in SPL. | |
972 | ||
30bf8a0d SG |
973 | config SPL_RTC_SUPPORT |
974 | bool "Support RTC drivers" | |
30bf8a0d SG |
975 | help |
976 | Enable RTC (Real-time Clock) support in SPL. This includes support | |
977 | for reading and setting the time. Some RTC devices also have some | |
978 | non-volatile (battery-backed) memory which is accessible if | |
979 | needed. This enables the drivers in drivers/rtc as part of an SPL | |
980 | build. | |
981 | ||
11bde1cd SG |
982 | config SPL_SATA_SUPPORT |
983 | bool "Support loading from SATA" | |
11bde1cd SG |
984 | help |
985 | Enable support for SATA (Serial AT attachment) in SPL. This allows | |
986 | use of SATA devices such as hard drives and flash drivers for | |
987 | loading U-Boot. SATA is used in higher-end embedded systems and | |
988 | can provide higher performance than MMC , at somewhat higher | |
989 | expense and power consumption. This enables loading from SATA | |
990 | using a configured device. | |
991 | ||
60ca969a BS |
992 | config SPL_SATA_RAW_U_BOOT_USE_SECTOR |
993 | bool "SATA raw mode: by sector" | |
994 | depends on SPL_SATA_SUPPORT | |
995 | help | |
996 | Use sector number for specifying U-Boot location on SATA disk in | |
997 | raw mode. | |
998 | ||
999 | config SPL_SATA_RAW_U_BOOT_SECTOR | |
1000 | hex "Sector on the SATA disk to load U-Boot from" | |
1001 | depends on SPL_SATA_RAW_U_BOOT_USE_SECTOR | |
1002 | help | |
1003 | Sector on the SATA disk to load U-Boot from, when the SATA disk is being | |
1004 | used in raw mode. Units: SATA disk sectors (1 sector = 512 bytes). | |
1005 | ||
11bde1cd SG |
1006 | config SPL_SERIAL_SUPPORT |
1007 | bool "Support serial" | |
14ad44ab AK |
1008 | select SPL_PRINTF |
1009 | select SPL_STRTO | |
11bde1cd SG |
1010 | help |
1011 | Enable support for serial in SPL. This allows use of a serial UART | |
1012 | for displaying messages while SPL is running. It also brings in | |
1013 | printf() and panic() functions. This should normally be enabled | |
1014 | unless there are space reasons not to. Even then, consider | |
27084c03 | 1015 | enabling SPL_USE_TINY_PRINTF which is a small printf() version. |
11bde1cd | 1016 | |
d024e992 SG |
1017 | config SPL_SPI_SUPPORT |
1018 | bool "Support SPI drivers" | |
1019 | help | |
1020 | Enable support for using SPI in SPL. This is used for connecting | |
1021 | to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for | |
1022 | more details on that. The SPI driver provides the transport for | |
1023 | data between the SPI flash and the CPU. This option can be used to | |
1024 | enable SPI drivers that are needed for other purposes also, such | |
1025 | as a SPI PMIC. | |
1026 | ||
11bde1cd SG |
1027 | config SPL_SPI_FLASH_SUPPORT |
1028 | bool "Support SPI flash drivers" | |
d024e992 | 1029 | depends on SPL_SPI_SUPPORT |
11bde1cd SG |
1030 | help |
1031 | Enable support for using SPI flash in SPL, and loading U-Boot from | |
1032 | SPI flash. SPI flash (Serial Peripheral Bus flash) is named after | |
1033 | the SPI bus that is used to connect it to a system. It is a simple | |
1034 | but fast bidirectional 4-wire bus (clock, chip select and two data | |
1035 | lines). This enables the drivers in drivers/mtd/spi as part of an | |
1036 | SPL build. This normally requires SPL_SPI_SUPPORT. | |
1037 | ||
0c6f187c V |
1038 | if SPL_SPI_FLASH_SUPPORT |
1039 | ||
778572d7 V |
1040 | config SPL_SPI_FLASH_TINY |
1041 | bool "Enable low footprint SPL SPI Flash support" | |
1042 | depends on !SPI_FLASH_BAR | |
72875978 | 1043 | default y if SPI_FLASH |
778572d7 V |
1044 | help |
1045 | Enable lightweight SPL SPI Flash support that supports just reading | |
1046 | data/images from flash. No support to write/erase flash. Enable | |
1047 | this if you have SPL size limitations and don't need full | |
1048 | fledged SPI flash support. | |
1049 | ||
0c6f187c V |
1050 | config SPL_SPI_FLASH_SFDP_SUPPORT |
1051 | bool "SFDP table parsing support for SPI NOR flashes" | |
778572d7 | 1052 | depends on !SPI_FLASH_BAR && !SPL_SPI_FLASH_TINY |
0c6f187c V |
1053 | help |
1054 | Enable support for parsing and auto discovery of parameters for | |
1055 | SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP) | |
1056 | tables as per JESD216 standard in SPL. | |
1057 | ||
55500438 MV |
1058 | config SPL_SPI_LOAD |
1059 | bool "Support loading from SPI flash" | |
55500438 MV |
1060 | help |
1061 | Enable support for loading next stage, U-Boot or otherwise, from | |
1062 | SPI NOR in U-Boot SPL. | |
1063 | ||
0c6f187c V |
1064 | endif # SPL_SPI_FLASH_SUPPORT |
1065 | ||
1ee774d2 HS |
1066 | config SYS_SPI_U_BOOT_OFFS |
1067 | hex "address of u-boot payload in SPI flash" | |
1068 | default 0x0 | |
1069 | depends on SPL_SPI_LOAD || SPL_SPI_SUNXI | |
1070 | help | |
1071 | Address within SPI-Flash from where the u-boot payload is fetched | |
1072 | from. | |
1073 | ||
8502f9f6 FA |
1074 | config SPL_THERMAL |
1075 | bool "Driver support for thermal devices" | |
1076 | help | |
1077 | Enable support for temperature-sensing devices. Some SoCs have on-chip | |
1078 | temperature sensors to permit warnings, speed throttling or even | |
1079 | automatic power-off when the temperature gets too high or low. Other | |
1080 | devices may be discrete but connected on a suitable bus. | |
1081 | ||
11bde1cd SG |
1082 | config SPL_USB_HOST_SUPPORT |
1083 | bool "Support USB host drivers" | |
91ff6865 | 1084 | select HAVE_BLOCK_DEVICE |
11bde1cd SG |
1085 | help |
1086 | Enable access to USB (Universal Serial Bus) host devices so that | |
1087 | SPL can load U-Boot from a connected USB peripheral, such as a USB | |
1088 | flash stick. While USB takes a little longer to start up than most | |
1089 | buses, it is very flexible since many different types of storage | |
1090 | device can be attached. This option enables the drivers in | |
1091 | drivers/usb/host as part of an SPL build. | |
1092 | ||
79536013 | 1093 | config SPL_USB_STORAGE |
11bde1cd | 1094 | bool "Support loading from USB" |
79536013 | 1095 | depends on SPL_USB_HOST_SUPPORT && !(BLK && !DM_USB) |
11bde1cd SG |
1096 | help |
1097 | Enable support for USB devices in SPL. This allows use of USB | |
1098 | devices such as hard drives and flash drivers for loading U-Boot. | |
1099 | The actual drivers are enabled separately using the normal U-Boot | |
1100 | config options. This enables loading from USB using a configured | |
1101 | device. | |
1102 | ||
f811e976 | 1103 | config SPL_USB_GADGET |
e94793c8 | 1104 | bool "Suppport USB Gadget drivers" |
e94793c8 SA |
1105 | help |
1106 | Enable USB Gadget API which allows to enable USB device functions | |
1107 | in SPL. | |
1108 | ||
f811e976 | 1109 | if SPL_USB_GADGET |
e94793c8 | 1110 | |
b432b1eb | 1111 | config SPL_USB_ETHER |
e94793c8 SA |
1112 | bool "Support USB Ethernet drivers" |
1113 | help | |
1114 | Enable access to the USB network subsystem and associated | |
1115 | drivers in SPL. This permits SPL to load U-Boot over a | |
1116 | USB-connected Ethernet link (such as a USB Ethernet dongle) rather | |
1117 | than from an onboard peripheral. Environment support is required | |
1118 | since the network stack uses a number of environment variables. | |
1119 | See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT. | |
1120 | ||
6536ca4d | 1121 | config SPL_DFU |
c3c19c27 | 1122 | bool "Support DFU (Device Firmware Upgrade)" |
5991703e | 1123 | select SPL_HASH_SUPPORT |
66928afb | 1124 | select SPL_DFU_NO_RESET |
1b19cbdb | 1125 | depends on SPL_RAM_SUPPORT |
5991703e | 1126 | help |
c3c19c27 | 1127 | This feature enables the DFU (Device Firmware Upgrade) in SPL with |
5991703e SA |
1128 | RAM memory device support. The ROM code will load and execute |
1129 | the SPL built with dfu. The user can load binaries (u-boot/kernel) to | |
1130 | selected device partition from host-pc using dfu-utils. | |
1131 | This feature is useful to flash the binaries to factory or bare-metal | |
1132 | boards using USB interface. | |
1133 | ||
1134 | choice | |
1135 | bool "DFU device selection" | |
6536ca4d | 1136 | depends on SPL_DFU |
5991703e SA |
1137 | |
1138 | config SPL_DFU_RAM | |
1139 | bool "RAM device" | |
6536ca4d | 1140 | depends on SPL_DFU && SPL_RAM_SUPPORT |
5991703e SA |
1141 | help |
1142 | select RAM/DDR memory device for loading binary images | |
1143 | (u-boot/kernel) to the selected device partition using | |
1144 | DFU and execute the u-boot/kernel from RAM. | |
1145 | ||
1146 | endchoice | |
1147 | ||
a3774c1c SA |
1148 | config SPL_USB_SDP_SUPPORT |
1149 | bool "Support SDP (Serial Download Protocol)" | |
1150 | help | |
1151 | Enable Serial Download Protocol (SDP) device support in SPL. This | |
1152 | allows to download images into memory and execute (jump to) them | |
1153 | using the same protocol as implemented by the i.MX family's boot ROM. | |
e94793c8 SA |
1154 | endif |
1155 | ||
11bde1cd SG |
1156 | config SPL_WATCHDOG_SUPPORT |
1157 | bool "Support watchdog drivers" | |
6874cb72 | 1158 | imply SPL_WDT if !HW_WATCHDOG |
11bde1cd SG |
1159 | help |
1160 | Enable support for watchdog drivers in SPL. A watchdog is | |
1161 | typically a hardware peripheral which can reset the system when it | |
1162 | detects no activity for a while (such as a software crash). This | |
1163 | enables the drivers in drivers/watchdog as part of an SPL build. | |
1164 | ||
1165 | config SPL_YMODEM_SUPPORT | |
1166 | bool "Support loading using Ymodem" | |
3bac19ce | 1167 | depends on SPL_SERIAL_SUPPORT |
11bde1cd SG |
1168 | help |
1169 | While loading from serial is slow it can be a useful backup when | |
1170 | there is no other option. The Ymodem protocol provides a reliable | |
1171 | means of transmitting U-Boot over a serial line for using in SPL, | |
1172 | with a checksum to ensure correctness. | |
1173 | ||
aa122f6b | 1174 | config SPL_ATF |
bcc1726a | 1175 | bool "Support ARM Trusted Firmware" |
226498b8 | 1176 | depends on ARM64 |
bcc1726a | 1177 | help |
d21fb63d PT |
1178 | ATF(ARM Trusted Firmware) is a component for ARM AArch64 which |
1179 | is loaded by SPL (which is considered as BL2 in ATF terminology). | |
bcc1726a KY |
1180 | More detail at: https://github.com/ARM-software/arm-trusted-firmware |
1181 | ||
d21fb63d PT |
1182 | config SPL_ATF_NO_PLATFORM_PARAM |
1183 | bool "Pass no platform parameter" | |
1184 | depends on SPL_ATF | |
1185 | help | |
1186 | While we expect to call a pointer to a valid FDT (or NULL) | |
1187 | as the platform parameter to an ATF, some ATF versions are | |
1188 | not U-Boot aware and have an insufficiently robust parameter | |
1189 | validation to gracefully reject a FDT being passed. | |
1190 | ||
1191 | If this option is enabled, the spl_atf os-type handler will | |
1192 | always pass NULL for the platform parameter. | |
1193 | ||
1194 | If your ATF is affected, say Y. | |
1195 | ||
3bf5f13c AK |
1196 | config SPL_AM33XX_ENABLE_RTC32K_OSC |
1197 | bool "Enable the RTC32K OSC on AM33xx based platforms" | |
1198 | default y if AM33XX | |
1199 | help | |
1200 | Enable access to the AM33xx RTC and select the external 32kHz clock | |
1201 | source. | |
1202 | ||
70fe2876 KY |
1203 | config SPL_OPTEE |
1204 | bool "Support OP-TEE Trusted OS" | |
1205 | depends on ARM | |
1206 | help | |
1207 | OP-TEE is an open source Trusted OS which is loaded by SPL. | |
1208 | More detail at: https://github.com/OP-TEE/optee_os | |
1209 | ||
5e30e45c LA |
1210 | config SPL_OPENSBI |
1211 | bool "Support RISC-V OpenSBI" | |
1212 | depends on RISCV && SPL_RISCV_MMODE && RISCV_SMODE | |
1213 | help | |
1214 | OpenSBI is an open-source implementation of the RISC-V Supervisor Binary | |
1215 | Interface (SBI) specification. U-Boot supports the OpenSBI FW_DYNAMIC | |
1216 | firmware. It is loaded and started by U-Boot SPL. | |
1217 | ||
1218 | More details are available at https://github.com/riscv/opensbi and | |
1219 | https://github.com/riscv/riscv-sbi-doc | |
1220 | ||
1221 | config SPL_OPENSBI_LOAD_ADDR | |
1222 | hex "OpenSBI load address" | |
1223 | depends on SPL_OPENSBI | |
1224 | help | |
1225 | Load address of the OpenSBI binary. | |
1226 | ||
226498b8 TR |
1227 | config TPL |
1228 | bool | |
1229 | depends on SUPPORT_TPL | |
1230 | prompt "Enable TPL" | |
1231 | help | |
1232 | If you want to build TPL as well as the normal image and SPL, say Y. | |
1233 | ||
1234 | if TPL | |
1235 | ||
c52b5e8e SG |
1236 | config TPL_SIZE_LIMIT |
1237 | hex "Maximum size of TPL image" | |
1238 | depends on TPL | |
1239 | default 0 | |
1240 | help | |
1241 | Specifies the maximum length of the U-Boot TPL image. | |
1242 | If this value is zero, it is ignored. | |
1243 | ||
22b7b860 HS |
1244 | config TPL_FRAMEWORK |
1245 | bool "Support TPL based upon the common SPL framework" | |
1246 | default y if SPL_FRAMEWORK | |
1247 | help | |
1248 | Enable the SPL framework under common/spl/ for TPL builds. | |
1249 | This framework supports MMC, NAND and YMODEM and other methods | |
1250 | loading of U-Boot's SPL stage. If unsure, say Y. | |
1251 | ||
b0edea3c SG |
1252 | config TPL_HANDOFF |
1253 | bool "Pass hand-off information from TPL to SPL and U-Boot proper" | |
a7da3d98 | 1254 | depends on HANDOFF && TPL_BLOBLIST |
b0edea3c SG |
1255 | default y |
1256 | help | |
1257 | This option enables TPL to write handoff information. This can be | |
1258 | used to pass information like the size of SDRAM from TPL to U-Boot | |
1259 | proper. The information is also available to SPL if it is useful | |
1260 | there. | |
1261 | ||
af2f4426 KY |
1262 | config TPL_BOARD_INIT |
1263 | bool "Call board-specific initialization in TPL" | |
1264 | help | |
1265 | If this option is enabled, U-Boot will call the function | |
1266 | spl_board_init() from board_init_r(). This function should be | |
1267 | provided by the board. | |
1268 | ||
dd6fbcb9 PT |
1269 | config TPL_LDSCRIPT |
1270 | string "Linker script for the TPL stage" | |
1271 | depends on TPL | |
2f41ade7 TR |
1272 | default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64 |
1273 | default "arch/$(ARCH)/cpu/u-boot-spl.lds" | |
dd6fbcb9 PT |
1274 | help |
1275 | The TPL stage will usually require a different linker-script | |
1276 | (as it runs from a different memory region) than the regular | |
1277 | U-Boot stage. Set this to the path of the linker-script to | |
1278 | be used for TPL. | |
1279 | ||
b3ed6ce7 PT |
1280 | May be left empty to trigger the Makefile infrastructure to |
1281 | fall back to the linker-script used for the SPL stage. | |
1282 | ||
1283 | config TPL_NEEDS_SEPARATE_TEXT_BASE | |
1284 | bool "TPL needs a separate text-base" | |
1285 | default n | |
1286 | depends on TPL | |
1287 | help | |
1288 | Enable, if the TPL stage should not inherit its text-base | |
1289 | from the SPL stage. When enabled, a base address for the | |
1290 | .text sections of the TPL stage has to be set below. | |
1291 | ||
1292 | config TPL_NEEDS_SEPARATE_STACK | |
1293 | bool "TPL needs a separate initial stack-pointer" | |
1294 | default n | |
1295 | depends on TPL | |
1296 | help | |
1297 | Enable, if the TPL stage should not inherit its initial | |
1298 | stack-pointer from the settings for the SPL stage. | |
1299 | ||
1300 | config TPL_TEXT_BASE | |
1301 | hex "Base address for the .text section of the TPL stage" | |
1302 | depends on TPL_NEEDS_SEPARATE_TEXT_BASE | |
1303 | help | |
1304 | The base address for the .text section of the TPL stage. | |
1305 | ||
1306 | config TPL_MAX_SIZE | |
1307 | int "Maximum size (in bytes) for the TPL stage" | |
5aa49af3 | 1308 | default 0 |
b3ed6ce7 PT |
1309 | depends on TPL |
1310 | help | |
1311 | The maximum size (in bytes) of the TPL stage. | |
1312 | ||
1313 | config TPL_STACK | |
1314 | hex "Address of the initial stack-pointer for the TPL stage" | |
1315 | depends on TPL_NEEDS_SEPARATE_STACK | |
1316 | help | |
1317 | The address of the initial stack-pointer for the TPL stage. | |
1318 | Usually this will be the (aligned) top-of-stack. | |
1319 | ||
a954fa32 PT |
1320 | config TPL_BOOTROM_SUPPORT |
1321 | bool "Support returning to the BOOTROM (from TPL)" | |
1322 | help | |
1323 | Some platforms (e.g. the Rockchip RK3368) provide support in their | |
1324 | ROM for loading the next boot-stage after performing basic setup | |
1325 | from the TPL stage. | |
1326 | ||
1327 | Enable this option, to return to the BOOTROM through the | |
1328 | BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the | |
1329 | boot device list, if not implemented for a given board) | |
1330 | ||
c3916e7b PT |
1331 | config TPL_DRIVERS_MISC_SUPPORT |
1332 | bool "Support misc drivers in TPL" | |
1333 | help | |
1334 | Enable miscellaneous drivers in TPL. These drivers perform various | |
1335 | tasks that don't fall nicely into other categories, Enable this | |
1336 | option to build the drivers in drivers/misc as part of an TPL | |
1337 | build, for those that support building in TPL (not all drivers do). | |
1338 | ||
f73329ee SG |
1339 | config TPL_ENV_SUPPORT |
1340 | bool "Support an environment" | |
f73329ee SG |
1341 | help |
1342 | Enable environment support in TPL. See SPL_ENV_SUPPORT for details. | |
1343 | ||
2d424eb0 SG |
1344 | config TPL_GPIO_SUPPORT |
1345 | bool "Support GPIO in TPL" | |
1346 | help | |
1347 | Enable support for GPIOs (General-purpose Input/Output) in TPL. | |
1348 | GPIOs allow U-Boot to read the state of an input line (high or | |
1349 | low) and set the state of an output line. This can be used to | |
1350 | drive LEDs, control power to various system parts and read user | |
1351 | input. GPIOs can be useful in TPL to enable a 'sign-of-life' LED, | |
1352 | for example. Enable this option to build the drivers in | |
1353 | drivers/gpio as part of an TPL build. | |
1354 | ||
f73329ee SG |
1355 | config TPL_I2C_SUPPORT |
1356 | bool "Support I2C" | |
f73329ee | 1357 | help |
616bd09e | 1358 | Enable support for the I2C bus in TPL. See SPL_I2C_SUPPORT for |
f73329ee SG |
1359 | details. |
1360 | ||
1361 | config TPL_LIBCOMMON_SUPPORT | |
1362 | bool "Support common libraries" | |
f73329ee SG |
1363 | help |
1364 | Enable support for common U-Boot libraries within TPL. See | |
1365 | SPL_LIBCOMMON_SUPPORT for details. | |
1366 | ||
1367 | config TPL_LIBGENERIC_SUPPORT | |
1368 | bool "Support generic libraries" | |
f73329ee SG |
1369 | help |
1370 | Enable support for generic U-Boot libraries within TPL. See | |
1371 | SPL_LIBGENERIC_SUPPORT for details. | |
1372 | ||
1373 | config TPL_MPC8XXX_INIT_DDR_SUPPORT | |
1374 | bool "Support MPC8XXX DDR init" | |
f73329ee SG |
1375 | help |
1376 | Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See | |
1377 | SPL_MPC8XXX_INIT_DDR_SUPPORT for details. | |
1378 | ||
1379 | config TPL_MMC_SUPPORT | |
1380 | bool "Support MMC" | |
226498b8 | 1381 | depends on MMC |
f73329ee SG |
1382 | help |
1383 | Enable support for MMC within TPL. See SPL_MMC_SUPPORT for details. | |
1384 | ||
1385 | config TPL_NAND_SUPPORT | |
1386 | bool "Support NAND flash" | |
f73329ee | 1387 | help |
616bd09e | 1388 | Enable support for NAND in TPL. See SPL_NAND_SUPPORT for details. |
f73329ee | 1389 | |
d50d6817 | 1390 | config TPL_PCI |
2d424eb0 SG |
1391 | bool "Support PCI drivers" |
1392 | help | |
1393 | Enable support for PCI in TPL. For platforms that need PCI to boot, | |
1394 | or must perform some init using PCI in SPL, this provides the | |
1395 | necessary driver support. This enables the drivers in drivers/pci | |
1396 | as part of a TPL build. | |
1397 | ||
1398 | config TPL_PCH_SUPPORT | |
1399 | bool "Support PCH drivers" | |
1400 | help | |
1401 | Enable support for PCH (Platform Controller Hub) devices in TPL. | |
1402 | These are used to set up GPIOs and the SPI peripheral early in | |
1403 | boot. This enables the drivers in drivers/pch as part of a TPL | |
1404 | build. | |
1405 | ||
d79dfd45 MV |
1406 | config TPL_RAM_SUPPORT |
1407 | bool "Support booting from RAM" | |
1408 | help | |
1409 | Enable booting of an image in RAM. The image can be preloaded or | |
1410 | it can be loaded by TPL directly into RAM (e.g. using USB). | |
1411 | ||
1412 | config TPL_RAM_DEVICE | |
1413 | bool "Support booting from preloaded image in RAM" | |
1414 | depends on TPL_RAM_SUPPORT | |
1415 | help | |
1416 | Enable booting of an image already loaded in RAM. The image has to | |
1417 | be already in memory when TPL takes over, e.g. loaded by the boot | |
1418 | ROM. | |
1419 | ||
2d424eb0 SG |
1420 | config TPL_RTC_SUPPORT |
1421 | bool "Support RTC drivers" | |
1422 | help | |
1423 | Enable RTC (Real-time Clock) support in TPL. This includes support | |
1424 | for reading and setting the time. Some RTC devices also have some | |
1425 | non-volatile (battery-backed) memory which is accessible if | |
1426 | needed. This enables the drivers in drivers/rtc as part of an TPL | |
1427 | build. | |
1428 | ||
f73329ee SG |
1429 | config TPL_SERIAL_SUPPORT |
1430 | bool "Support serial" | |
14ad44ab AK |
1431 | select TPL_PRINTF |
1432 | select TPL_STRTO | |
f73329ee | 1433 | help |
616bd09e | 1434 | Enable support for serial in TPL. See SPL_SERIAL_SUPPORT for |
f73329ee SG |
1435 | details. |
1436 | ||
1437 | config TPL_SPI_FLASH_SUPPORT | |
1438 | bool "Support SPI flash drivers" | |
f73329ee | 1439 | help |
616bd09e | 1440 | Enable support for using SPI flash in TPL. See SPL_SPI_FLASH_SUPPORT |
f73329ee SG |
1441 | for details. |
1442 | ||
1e725e27 MV |
1443 | config TPL_SPI_LOAD |
1444 | bool "Support loading from SPI flash" | |
1445 | depends on TPL_SPI_FLASH_SUPPORT | |
1446 | help | |
1447 | Enable support for loading next stage, U-Boot or otherwise, from | |
1448 | SPI NOR in U-Boot TPL. | |
1449 | ||
f73329ee SG |
1450 | config TPL_SPI_SUPPORT |
1451 | bool "Support SPI drivers" | |
f73329ee | 1452 | help |
616bd09e | 1453 | Enable support for using SPI in TPL. See SPL_SPI_SUPPORT for |
f73329ee SG |
1454 | details. |
1455 | ||
6ce3d67c MV |
1456 | config TPL_YMODEM_SUPPORT |
1457 | bool "Support loading using Ymodem" | |
3bac19ce | 1458 | depends on TPL_SERIAL_SUPPORT |
6ce3d67c MV |
1459 | help |
1460 | While loading from serial is slow it can be a useful backup when | |
1461 | there is no other option. The Ymodem protocol provides a reliable | |
1462 | means of transmitting U-Boot over a serial line for using in TPL, | |
1463 | with a checksum to ensure correctness. | |
1464 | ||
226498b8 TR |
1465 | endif # TPL |
1466 | ||
0be07872 EH |
1467 | config SPL_AT91_MCK_BYPASS |
1468 | bool "Use external clock signal as a source of main clock for AT91 platforms" | |
1469 | depends on ARCH_AT91 | |
1470 | default n | |
1471 | help | |
1472 | Use external 8 to 24 Mhz clock signal as source of main clock instead | |
1473 | of an external crystal oscillator. | |
1474 | This option disables the internal driving on the XOUT pin. | |
1475 | The external source has to provide a stable clock on the XIN pin. | |
1476 | If this option is disabled, the SoC expects a crystal oscillator | |
1477 | that needs driving on both XIN and XOUT lines. | |
1478 | ||
226498b8 | 1479 | endif # SPL |
11bde1cd | 1480 | endmenu |