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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 | ||
9 | config SPL | |
10 | bool | |
11 | depends on SUPPORT_SPL | |
12 | prompt "Enable SPL" | |
13 | help | |
14 | If you want to build SPL as well as the normal image, say Y. | |
15 | ||
16 | config SPL_SYS_MALLOC_SIMPLE | |
17 | bool | |
18 | depends on SPL | |
19 | prompt "Only use malloc_simple functions in the SPL" | |
20 | help | |
21 | Say Y here to only use the *_simple malloc functions from | |
22 | malloc_simple.c, rather then using the versions from dlmalloc.c; | |
23 | this will make the SPL binary smaller at the cost of more heap | |
24 | usage as the *_simple malloc functions do not re-use free-ed mem. | |
25 | ||
26 | config SPL_STACK_R | |
27 | depends on SPL | |
28 | bool "Enable SDRAM location for SPL stack" | |
29 | help | |
30 | SPL starts off execution in SRAM and thus typically has only a small | |
31 | stack available. Since SPL sets up DRAM while in its board_init_f() | |
32 | function, it is possible for the stack to move there before | |
33 | board_init_r() is reached. This option enables a special SDRAM | |
34 | location for the SPL stack. U-Boot SPL switches to this after | |
35 | board_init_f() completes, and before board_init_r() starts. | |
36 | ||
37 | config SPL_STACK_R_ADDR | |
38 | depends on SPL_STACK_R | |
39 | hex "SDRAM location for SPL stack" | |
40 | help | |
41 | Specify the address in SDRAM for the SPL stack. This will be set up | |
42 | before board_init_r() is called. | |
43 | ||
44 | config SPL_STACK_R_MALLOC_SIMPLE_LEN | |
45 | depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE | |
46 | hex "Size of malloc_simple heap after switching to DRAM SPL stack" | |
47 | default 0x100000 | |
48 | help | |
49 | Specify the amount of the stack to use as memory pool for | |
50 | malloc_simple after switching the stack to DRAM. This may be set | |
51 | to give board_init_r() a larger heap then the initial heap in | |
52 | SRAM which is limited to SYS_MALLOC_F_LEN bytes. | |
53 | ||
54 | config SPL_SEPARATE_BSS | |
55 | depends on SPL | |
56 | bool "BSS section is in a different memory region from text" | |
57 | help | |
58 | Some platforms need a large BSS region in SPL and can provide this | |
59 | because RAM is already set up. In this case BSS can be moved to RAM. | |
60 | This option should then be enabled so that the correct device tree | |
61 | location is used. Normally we put the device tree at the end of BSS | |
62 | but with this option enabled, it goes at _image_binary_end. | |
63 | ||
a807ab33 SG |
64 | config SPL_DISPLAY_PRINT |
65 | depends on SPL | |
66 | bool "Display a board-specific message in SPL" | |
67 | help | |
68 | If this option is enabled, U-Boot will call the function | |
69 | spl_display_print() immediately after displaying the SPL console | |
70 | banner ("U-Boot SPL ..."). This function should be provided by | |
71 | the board. | |
72 | ||
38fed8ab SP |
73 | config SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
74 | bool "MMC raw mode: by sector" | |
75 | depends on SPL | |
76 | default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER ||ARCH_MX6 || \ | |
77 | ARCH_ROCKCHIP || ARCH_MVEBU || ARCH_SOCFPGA || \ | |
78 | ARCH_AT91 || ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || \ | |
79 | OMAP44XX || OMAP54XX || AM33XX || AM43XX | |
80 | help | |
81 | Use sector number for specifying U-Boot location on MMC/SD in | |
82 | raw mode. | |
83 | ||
84 | config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR | |
85 | hex "Address on the MMC to load U-Boot from" | |
86 | depends on SPL && SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR | |
87 | default 0x50 if ARCH_SUNXI | |
88 | default 0x75 if ARCH_DAVINCI | |
89 | default 0x80 if ARCH_UNIPHIER | |
90 | default 0x8a if ARCH_MX6 | |
91 | default 0x100 if ARCH_ROCKCHIP | |
92 | default 0x140 if ARCH_MVEBU | |
93 | default 0x200 if ARCH_SOCFPGA || ARCH_AT91 | |
94 | default 0x300 if ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || OMAP44XX || \ | |
95 | OMAP54XX || AM33XX || AM43XX | |
96 | help | |
97 | Address on the MMC to load U-Boot from, when the MMC is being used | |
98 | in raw mode. Units: MMC sectors (1 sector = 512 bytes). | |
99 | ||
c2ae7d82 SG |
100 | config TPL |
101 | bool | |
102 | depends on SPL && SUPPORT_TPL | |
103 | prompt "Enable TPL" | |
104 | help | |
105 | If you want to build TPL as well as the normal image and SPL, say Y. | |
11bde1cd SG |
106 | |
107 | config SPL_CRC32_SUPPORT | |
108 | bool "Support CRC32" | |
109 | depends on SPL_FIT | |
110 | help | |
111 | Enable this to support CRC32 in FIT images within SPL. This is a | |
112 | 32-bit checksum value that can be used to verify images. This is | |
113 | the least secure type of checksum, suitable for detected | |
114 | accidental image corruption. For secure applications you should | |
115 | consider SHA1 or SHA256. | |
116 | ||
117 | config SPL_MD5_SUPPORT | |
118 | bool "Support MD5" | |
119 | depends on SPL_FIT | |
120 | help | |
121 | Enable this to support MD5 in FIT images within SPL. An MD5 | |
122 | checksum is a 128-bit hash value used to check that the image | |
123 | contents have not been corrupted. Note that MD5 is not considered | |
124 | secure as it is possible (with a brute-force attack) to adjust the | |
125 | image while still retaining the same MD5 hash value. For secure | |
126 | applications where images may be changed maliciously, you should | |
127 | consider SHA1 or SHA256. | |
128 | ||
129 | config SPL_SHA1_SUPPORT | |
130 | bool "Support SHA1" | |
131 | depends on SPL_FIT | |
132 | help | |
133 | Enable this to support SHA1 in FIT images within SPL. A SHA1 | |
134 | checksum is a 160-bit (20-byte) hash value used to check that the | |
135 | image contents have not been corrupted or maliciously altered. | |
136 | While SHA1 is fairly secure it is coming to the end of its life | |
137 | due to the expanding computing power avaiable to brute-force | |
138 | attacks. For more security, consider SHA256. | |
139 | ||
140 | config SPL_SHA256_SUPPORT | |
141 | bool "Support SHA256" | |
142 | depends on SPL_FIT | |
143 | help | |
144 | Enable this to support SHA256 in FIT images within SPL. A SHA256 | |
145 | checksum is a 256-bit (32-byte) hash value used to check that the | |
146 | image contents have not been corrupted. SHA256 is recommended for | |
147 | use in secure applications since (as at 2016) there is no known | |
148 | feasible attack that could produce a 'collision' with differing | |
149 | input data. Use this for the highest security. Note that only the | |
150 | SHA256 variant is supported: SHA512 and others are not currently | |
151 | supported in U-Boot. | |
152 | ||
153 | config SPL_CRYPTO_SUPPORT | |
154 | bool "Support crypto drivers" | |
155 | depends on SPL | |
156 | help | |
157 | Enable crypto drivers in SPL. These drivers can be used to | |
158 | accelerate secure boot processing in secure applications. Enable | |
159 | this option to build the drivers in drivers/crypto as part of an | |
160 | SPL build. | |
161 | ||
162 | config SPL_HASH_SUPPORT | |
163 | bool "Support hashing drivers" | |
164 | depends on SPL | |
165 | help | |
166 | Enable hashing drivers in SPL. These drivers can be used to | |
167 | accelerate secure boot processing in secure applications. Enable | |
168 | this option to build system-specific drivers for hash acceleration | |
169 | as part of an SPL build. | |
170 | ||
171 | config SPL_DMA_SUPPORT | |
172 | bool "Support DMA drivers" | |
173 | depends on SPL | |
174 | help | |
175 | Enable DMA (direct-memory-access) drivers in SPL. These drivers | |
176 | can be used to handle memory-to-peripheral data transfer without | |
177 | the CPU moving the data. Enable this option to build the drivers | |
178 | in drivers/dma as part of an SPL build. | |
179 | ||
180 | config SPL_DRIVERS_MISC_SUPPORT | |
181 | bool "Support misc drivers" | |
182 | depends on SPL | |
183 | help | |
184 | Enable miscellaneous drivers in SPL. These drivers perform various | |
185 | tasks that don't fall nicely into other categories, Enable this | |
186 | option to build the drivers in drivers/misc as part of an SPL | |
187 | build, for those that support building in SPL (not all drivers do). | |
188 | ||
189 | config SPL_ENV_SUPPORT | |
190 | bool "Support an environment" | |
191 | depends on SPL | |
192 | help | |
193 | Enable environment support in SPL. The U-Boot environment provides | |
194 | a number of settings (essentially name/value pairs) which can | |
195 | control many aspects of U-Boot's operation. Normally this is not | |
196 | needed in SPL as it has a much simpler task with less | |
197 | configuration. But some boards use this to support 'Falcon' boot | |
198 | on EXT2 and FAT, where SPL boots directly into Linux without | |
199 | starting U-Boot first. Enabling this option will make getenv() | |
200 | and setenv() available in SPL. | |
201 | ||
d2d9bdfc R |
202 | config SPL_SAVEENV |
203 | bool "Support save environment" | |
204 | depends on SPL && SPL_ENV_SUPPORT | |
205 | help | |
206 | Enable save environment support in SPL after setenv. By default | |
207 | the saveenv option is not provided in SPL, but some boards need | |
208 | this support in 'Falcon' boot, where SPL need to boot from | |
209 | different images based on environment variable set by OS. For | |
210 | example OS may set "reboot_image" environment variable to | |
211 | "recovery" inorder to boot recovery image by SPL. The SPL read | |
212 | "reboot_image" and act accordingly and change the reboot_image | |
213 | to default mode using setenv and save the environemnt. | |
214 | ||
11bde1cd SG |
215 | config SPL_ETH_SUPPORT |
216 | bool "Support Ethernet" | |
217 | depends on SPL_ENV_SUPPORT | |
218 | help | |
219 | Enable access to the network subsystem and associated Ethernet | |
220 | drivers in SPL. This permits SPL to load U-Boot over an Ethernet | |
221 | link rather than from an on-board peripheral. Environment support | |
222 | is required since the network stack uses a number of environment | |
223 | variables. See also SPL_NET_SUPPORT. | |
224 | ||
225 | config SPL_EXT_SUPPORT | |
226 | bool "Support EXT filesystems" | |
227 | depends on SPL | |
228 | help | |
229 | Enable support for EXT2/3/4 filesystems with SPL. This permits | |
230 | U-Boot (or Linux in Falcon mode) to be loaded from an EXT | |
231 | filesystem from within SPL. Support for the underlying block | |
232 | device (e.g. MMC or USB) must be enabled separately. | |
233 | ||
234 | config SPL_FAT_SUPPORT | |
235 | bool "Support FAT filesystems" | |
236 | depends on SPL | |
237 | help | |
238 | Enable support for FAT and VFAT filesystems with SPL. This | |
239 | permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT | |
240 | filesystem from within SPL. Support for the underlying block | |
241 | device (e.g. MMC or USB) must be enabled separately. | |
242 | ||
243 | config SPL_FPGA_SUPPORT | |
244 | bool "Support FPGAs" | |
245 | depends on SPL | |
246 | help | |
247 | Enable support for FPGAs in SPL. Field-programmable Gate Arrays | |
248 | provide software-configurable hardware which is typically used to | |
249 | implement peripherals (such as UARTs, LCD displays, MMC) or | |
250 | accelerate custom processing functions, such as image processing | |
251 | or machine learning. Sometimes it is useful to program the FPGA | |
252 | as early as possible during boot, and this option can enable that | |
253 | within SPL. | |
254 | ||
255 | config SPL_GPIO_SUPPORT | |
256 | bool "Support GPIO" | |
257 | depends on SPL | |
258 | help | |
259 | Enable support for GPIOs (General-purpose Input/Output) in SPL. | |
260 | GPIOs allow U-Boot to read the state of an input line (high or | |
261 | low) and set the state of an output line. This can be used to | |
262 | drive LEDs, control power to various system parts and read user | |
263 | input. GPIOs can be useful in SPL to enable a 'sign-of-life' LED, | |
264 | for example. Enable this option to build the drivers in | |
265 | drivers/gpio as part of an SPL build. | |
266 | ||
267 | config SPL_I2C_SUPPORT | |
268 | bool "Support I2C" | |
269 | depends on SPL | |
270 | help | |
271 | Enable support for the I2C (Inter-Integrated Circuit) bus in SPL. | |
272 | I2C works with a clock and data line which can be driven by a | |
273 | one or more masters or slaves. It is a fairly complex bus but is | |
274 | widely used as it only needs two lines for communication. Speeds of | |
275 | 400kbps are typical but up to 3.4Mbps is supported by some | |
276 | hardware. I2C can be useful in SPL to configure power management | |
277 | ICs (PMICs) before raising the CPU clock speed, for example. | |
278 | Enable this option to build the drivers in drivers/i2c as part of | |
279 | an SPL build. | |
280 | ||
281 | config SPL_LIBCOMMON_SUPPORT | |
282 | bool "Support common libraries" | |
283 | depends on SPL | |
284 | help | |
285 | Enable support for common U-Boot libraries within SPL. These | |
286 | libraries include common code to deal with U-Boot images, | |
287 | environment and USB, for example. This option is enabled on many | |
288 | boards. Enable this option to build the code in common/ as part of | |
289 | an SPL build. | |
290 | ||
291 | config SPL_LIBDISK_SUPPORT | |
292 | bool "Support disk paritions" | |
293 | depends on SPL | |
294 | help | |
295 | Enable support for disk partitions within SPL. 'Disk' is something | |
296 | of a misnomer as it includes non-spinning media such as flash (as | |
297 | used in MMC and USB sticks). Partitions provide a way for a disk | |
298 | to be split up into separate regions, with a partition table placed | |
299 | at the start or end which describes the location and size of each | |
300 | 'partition'. These partitions are typically uses as individual block | |
301 | devices, typically with an EXT2 or FAT filesystem in each. This | |
302 | option enables whatever partition support has been enabled in | |
303 | U-Boot to also be used in SPL. It brings in the code in disk/. | |
304 | ||
305 | config SPL_LIBGENERIC_SUPPORT | |
306 | bool "Support generic libraries" | |
307 | depends on SPL | |
308 | help | |
309 | Enable support for generic U-Boot libraries within SPL. These | |
310 | libraries include generic code to deal with device tree, hashing, | |
311 | printf(), compression and the like. This option is enabled on many | |
312 | boards. Enable this option to build the code in lib/ as part of an | |
313 | SPL build. | |
314 | ||
315 | config SPL_MMC_SUPPORT | |
316 | bool "Support MMC" | |
317 | depends on SPL | |
318 | help | |
319 | Enable support for MMC (Multimedia Card) within SPL. This enables | |
320 | the MMC protocol implementation and allows any enabled drivers to | |
321 | be used within SPL. MMC can be used with or without disk partition | |
322 | support depending on the application (SPL_LIBDISK_SUPPORT). Enable | |
323 | this option to build the drivers in drivers/mmc as part of an SPL | |
324 | build. | |
325 | ||
326 | config SPL_MPC8XXX_INIT_DDR_SUPPORT | |
327 | bool "Support MPC8XXX DDR init" | |
328 | depends on SPL | |
329 | help | |
330 | Enable support for DDR-SDRAM (double-data-rate synchronous dynamic | |
331 | random-access memory) on the MPC8XXX family within SPL. This | |
332 | allows DRAM to be set up before loading U-Boot into that DRAM, | |
333 | where it can run. | |
334 | ||
335 | config SPL_MTD_SUPPORT | |
336 | bool "Support MTD drivers" | |
337 | depends on SPL | |
338 | help | |
339 | Enable support for MTD (Memory Technology Device) within SPL. MTD | |
340 | provides a block interface over raw NAND and can also be used with | |
341 | SPI flash. This allows SPL to load U-Boot from supported MTD | |
342 | devices. See SPL_NAND_SUPPORT and SPL_ONENAND_SUPPORT for how | |
343 | to enable specific MTD drivers. | |
344 | ||
345 | config SPL_MUSB_NEW_SUPPORT | |
346 | bool "Support new Mentor Graphics USB" | |
347 | depends on SPL | |
348 | help | |
349 | Enable support for Mentor Graphics USB in SPL. This is a new | |
350 | driver used by some boards. Enable this option to build | |
351 | the drivers in drivers/usb/musb-new as part of an SPL build. The | |
352 | old drivers are in drivers/usb/musb. | |
353 | ||
354 | config SPL_NAND_SUPPORT | |
355 | bool "Support NAND flash" | |
356 | depends on SPL | |
357 | help | |
358 | Enable support for NAND (Negative AND) flash in SPL. NAND flash | |
359 | can be used to allow SPL to load U-Boot from supported devices. | |
360 | This enables the drivers in drivers/mtd/nand as part of an SPL | |
361 | build. | |
362 | ||
363 | config SPL_NET_SUPPORT | |
364 | bool "Support networking" | |
365 | depends on SPL | |
366 | help | |
367 | Enable support for network devices (such as Ethernet) in SPL. | |
368 | This permits SPL to load U-Boot over a network link rather than | |
369 | from an on-board peripheral. Environment support is required since | |
370 | the network stack uses a number of environment variables. See also | |
371 | SPL_ETH_SUPPORT. | |
372 | ||
373 | if SPL_NET_SUPPORT | |
374 | config SPL_NET_VCI_STRING | |
375 | string "BOOTP Vendor Class Identifier string sent by SPL" | |
376 | help | |
377 | As defined by RFC 2132 the vendor class identifier field can be | |
378 | sent by the client to identify the vendor type and configuration | |
379 | of a client. This is often used in practice to allow for the DHCP | |
380 | server to specify different files to load depending on if the ROM, | |
381 | SPL or U-Boot itself makes the request | |
382 | endif # if SPL_NET_SUPPORT | |
383 | ||
384 | config SPL_NO_CPU_SUPPORT | |
385 | bool "Drop CPU code in SPL" | |
386 | depends on SPL | |
387 | help | |
388 | This is specific to the ARM926EJ-S CPU. It disables the standard | |
389 | start.S start-up code, presumably so that a replacement can be | |
390 | used on that CPU. You should not enable it unless you know what | |
391 | you are doing. | |
392 | ||
393 | config SPL_NOR_SUPPORT | |
394 | bool "Support NOR flash" | |
395 | depends on SPL | |
396 | help | |
397 | Enable support for loading U-Boot from memory-mapped NOR (Negative | |
398 | OR) flash in SPL. NOR flash is slow to write but fast to read, and | |
399 | a memory-mapped device makes it very easy to access. Loading from | |
400 | NOR is typically achieved with just a memcpy(). | |
401 | ||
402 | config SPL_ONENAND_SUPPORT | |
403 | bool "Support OneNAND flash" | |
404 | depends on SPL | |
405 | help | |
406 | Enable support for OneNAND (Negative AND) flash in SPL. OneNAND is | |
407 | a type of NAND flash and therefore can be used to allow SPL to | |
408 | load U-Boot from supported devices. This enables the drivers in | |
409 | drivers/mtd/onenand as part of an SPL build. | |
410 | ||
c20ae2ff HS |
411 | config SPL_OS_BOOT |
412 | bool "Activate Falcon Mode" | |
413 | depends on SPL && !TI_SECURE_DEVICE | |
414 | default n | |
415 | help | |
416 | Enable booting directly to an OS from SPL. | |
417 | for more info read doc/README.falcon | |
418 | ||
29d3bc79 HS |
419 | if SPL_OS_BOOT |
420 | config SYS_OS_BASE | |
421 | hex "addr, where OS is found" | |
422 | depends on SPL && SPL_NOR_SUPPORT | |
423 | help | |
424 | Specify the address, where the OS image is found, which | |
425 | gets booted. | |
426 | ||
427 | endif # SPL_OS_BOOT | |
428 | ||
11bde1cd SG |
429 | config SPL_POST_MEM_SUPPORT |
430 | bool "Support POST drivers" | |
431 | depends on SPL | |
432 | help | |
433 | Enable support for POST (Power-on Self Test) in SPL. POST is a | |
434 | procedure that checks that the hardware (CPU or board) appears to | |
435 | be functionally correctly. It is a sanity check that can be | |
436 | performed before booting. This enables the drivers in post/drivers | |
437 | as part of an SPL build. | |
438 | ||
439 | config SPL_POWER_SUPPORT | |
440 | bool "Support power drivers" | |
441 | depends on SPL | |
442 | help | |
443 | Enable support for power control in SPL. This includes support | |
444 | for PMICs (Power-management Integrated Circuits) and some of the | |
445 | features provided by PMICs. In particular, voltage regulators can | |
446 | be used to enable/disable power and vary its voltage. That can be | |
447 | useful in SPL to turn on boot peripherals and adjust CPU voltage | |
448 | so that the clock speed can be increased. This enables the drivers | |
449 | in drivers/power, drivers/power/pmic and drivers/power/regulator | |
450 | as part of an SPL build. | |
451 | ||
452 | config SPL_SATA_SUPPORT | |
453 | bool "Support loading from SATA" | |
454 | depends on SPL | |
455 | help | |
456 | Enable support for SATA (Serial AT attachment) in SPL. This allows | |
457 | use of SATA devices such as hard drives and flash drivers for | |
458 | loading U-Boot. SATA is used in higher-end embedded systems and | |
459 | can provide higher performance than MMC , at somewhat higher | |
460 | expense and power consumption. This enables loading from SATA | |
461 | using a configured device. | |
462 | ||
463 | config SPL_SERIAL_SUPPORT | |
464 | bool "Support serial" | |
465 | depends on SPL | |
466 | help | |
467 | Enable support for serial in SPL. This allows use of a serial UART | |
468 | for displaying messages while SPL is running. It also brings in | |
469 | printf() and panic() functions. This should normally be enabled | |
470 | unless there are space reasons not to. Even then, consider | |
471 | enabling USE_TINY_PRINTF which is a small printf() version. | |
472 | ||
473 | config SPL_SPI_FLASH_SUPPORT | |
474 | bool "Support SPI flash drivers" | |
475 | depends on SPL | |
476 | help | |
477 | Enable support for using SPI flash in SPL, and loading U-Boot from | |
478 | SPI flash. SPI flash (Serial Peripheral Bus flash) is named after | |
479 | the SPI bus that is used to connect it to a system. It is a simple | |
480 | but fast bidirectional 4-wire bus (clock, chip select and two data | |
481 | lines). This enables the drivers in drivers/mtd/spi as part of an | |
482 | SPL build. This normally requires SPL_SPI_SUPPORT. | |
483 | ||
484 | config SPL_SPI_SUPPORT | |
485 | bool "Support SPI drivers" | |
486 | depends on SPL | |
487 | help | |
488 | Enable support for using SPI in SPL. This is used for connecting | |
489 | to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for | |
490 | more details on that. The SPI driver provides the transport for | |
491 | data between the SPI flash and the CPU. This option can be used to | |
492 | enable SPI drivers that are needed for other purposes also, such | |
493 | as a SPI PMIC. | |
494 | ||
495 | config SPL_USBETH_SUPPORT | |
496 | bool "Support USB Ethernet drivers" | |
497 | depends on SPL | |
498 | help | |
499 | Enable access to the USB network subsystem and associated | |
500 | drivers in SPL. This permits SPL to load U-Boot over a | |
501 | USB-connected Ethernet link (such as a USB Ethernet dongle) rather | |
502 | than from an onboard peripheral. Environment support is required | |
503 | since the network stack uses a number of environment variables. | |
504 | See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT. | |
505 | ||
506 | config SPL_USB_HOST_SUPPORT | |
507 | bool "Support USB host drivers" | |
508 | depends on SPL | |
509 | help | |
510 | Enable access to USB (Universal Serial Bus) host devices so that | |
511 | SPL can load U-Boot from a connected USB peripheral, such as a USB | |
512 | flash stick. While USB takes a little longer to start up than most | |
513 | buses, it is very flexible since many different types of storage | |
514 | device can be attached. This option enables the drivers in | |
515 | drivers/usb/host as part of an SPL build. | |
516 | ||
517 | config SPL_USB_SUPPORT | |
518 | bool "Support loading from USB" | |
519 | depends on SPL_USB_HOST_SUPPORT | |
520 | help | |
521 | Enable support for USB devices in SPL. This allows use of USB | |
522 | devices such as hard drives and flash drivers for loading U-Boot. | |
523 | The actual drivers are enabled separately using the normal U-Boot | |
524 | config options. This enables loading from USB using a configured | |
525 | device. | |
526 | ||
527 | config SPL_WATCHDOG_SUPPORT | |
528 | bool "Support watchdog drivers" | |
529 | depends on SPL | |
530 | help | |
531 | Enable support for watchdog drivers in SPL. A watchdog is | |
532 | typically a hardware peripheral which can reset the system when it | |
533 | detects no activity for a while (such as a software crash). This | |
534 | enables the drivers in drivers/watchdog as part of an SPL build. | |
535 | ||
536 | config SPL_YMODEM_SUPPORT | |
537 | bool "Support loading using Ymodem" | |
538 | depends on SPL | |
539 | help | |
540 | While loading from serial is slow it can be a useful backup when | |
541 | there is no other option. The Ymodem protocol provides a reliable | |
542 | means of transmitting U-Boot over a serial line for using in SPL, | |
543 | with a checksum to ensure correctness. | |
544 | ||
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545 | config TPL_ENV_SUPPORT |
546 | bool "Support an environment" | |
547 | depends on TPL | |
548 | help | |
549 | Enable environment support in TPL. See SPL_ENV_SUPPORT for details. | |
550 | ||
551 | config TPL_I2C_SUPPORT | |
552 | bool "Support I2C" | |
553 | depends on TPL | |
554 | help | |
555 | Enable support for the I2C bus in SPL. See SPL_I2C_SUPPORT for | |
556 | details. | |
557 | ||
558 | config TPL_LIBCOMMON_SUPPORT | |
559 | bool "Support common libraries" | |
560 | depends on TPL | |
561 | help | |
562 | Enable support for common U-Boot libraries within TPL. See | |
563 | SPL_LIBCOMMON_SUPPORT for details. | |
564 | ||
565 | config TPL_LIBGENERIC_SUPPORT | |
566 | bool "Support generic libraries" | |
567 | depends on TPL | |
568 | help | |
569 | Enable support for generic U-Boot libraries within TPL. See | |
570 | SPL_LIBGENERIC_SUPPORT for details. | |
571 | ||
572 | config TPL_MPC8XXX_INIT_DDR_SUPPORT | |
573 | bool "Support MPC8XXX DDR init" | |
574 | depends on TPL | |
575 | help | |
576 | Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See | |
577 | SPL_MPC8XXX_INIT_DDR_SUPPORT for details. | |
578 | ||
579 | config TPL_MMC_SUPPORT | |
580 | bool "Support MMC" | |
581 | depends on TPL | |
582 | help | |
583 | Enable support for MMC within TPL. See SPL_MMC_SUPPORT for details. | |
584 | ||
585 | config TPL_NAND_SUPPORT | |
586 | bool "Support NAND flash" | |
587 | depends on TPL | |
588 | help | |
589 | Enable support for NAND in SPL. See SPL_NAND_SUPPORT for details. | |
590 | ||
591 | config TPL_SERIAL_SUPPORT | |
592 | bool "Support serial" | |
593 | depends on TPL | |
594 | help | |
595 | Enable support for serial in SPL. See SPL_SERIAL_SUPPORT for | |
596 | details. | |
597 | ||
598 | config TPL_SPI_FLASH_SUPPORT | |
599 | bool "Support SPI flash drivers" | |
600 | depends on TPL | |
601 | help | |
602 | Enable support for using SPI flash in SPL. See SPL_SPI_FLASH_SUPPORT | |
603 | for details. | |
604 | ||
605 | config TPL_SPI_SUPPORT | |
606 | bool "Support SPI drivers" | |
607 | depends on TPL | |
608 | help | |
609 | Enable support for using SPI in SPL. See SPL_SPI_SUPPORT for | |
610 | details. | |
611 | ||
11bde1cd | 612 | endmenu |