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Simon Glass11bde1c2016-09-13 07:05:23 -06001menu "SPL / TPL"
2
Simon Glassc2ae7d82016-09-12 23:18:22 -06003config SUPPORT_SPL
4 bool
5
6config SUPPORT_TPL
7 bool
8
9config 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
16config 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
26config 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
37config 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
44config 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
54config 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
Simon Glassa807ab32016-09-24 18:19:56 -060064config 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
Semen Protsenko38fed8a2016-11-16 19:19:05 +020073config 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
84config 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
Simon Glassc2ae7d82016-09-12 23:18:22 -0600100config 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.
Simon Glass11bde1c2016-09-13 07:05:23 -0600106
107config 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
117config 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
129config 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
140config 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
153config 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
162config 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
171config 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
180config 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
189config 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
B, Ravid2d9bdf2016-09-28 14:46:18 +0530202config 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
Simon Glass11bde1c2016-09-13 07:05:23 -0600215config 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
225config 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
234config 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
243config 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
255config 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
267config 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
281config 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
291config 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
305config 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
315config 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
326config 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
335config 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
345config 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
354config 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
363config 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
373if SPL_NET_SUPPORT
374config 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
382endif # if SPL_NET_SUPPORT
383
384config 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
393config 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
402config 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
Heiko Schocherc20ae2f2016-10-06 07:55:15 +0200411config 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
Heiko Schocher29d3bc72016-10-06 07:55:16 +0200419if SPL_OS_BOOT
420config 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
427endif # SPL_OS_BOOT
428
Simon Glass11bde1c2016-09-13 07:05:23 -0600429config 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
439config 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
Stefan Agner22802f42016-12-23 07:51:53 +0100452config SPL_RAM_SUPPORT
453 bool "Support booting from RAM"
454 depends on SPL
455 default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ
456 help
457 Enable booting of an image in RAM. The image can be preloaded or
458 it can be loaded by SPL directly into RAM (e.g. using USB).
459
Stefan Agnerf417d402016-12-23 07:51:52 +0100460config SPL_RAM_DEVICE
461 bool "Support booting from preloaded image in RAM"
Stefan Agner22802f42016-12-23 07:51:53 +0100462 depends on SPL_RAM_SUPPORT
Stefan Agnerf417d402016-12-23 07:51:52 +0100463 default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ
464 help
465 Enable booting of an image already loaded in RAM. The image has to
466 be already in memory when SPL takes over, e.g. loaded by the boot
467 ROM.
468
Simon Glass11bde1c2016-09-13 07:05:23 -0600469config SPL_SATA_SUPPORT
470 bool "Support loading from SATA"
471 depends on SPL
472 help
473 Enable support for SATA (Serial AT attachment) in SPL. This allows
474 use of SATA devices such as hard drives and flash drivers for
475 loading U-Boot. SATA is used in higher-end embedded systems and
476 can provide higher performance than MMC , at somewhat higher
477 expense and power consumption. This enables loading from SATA
478 using a configured device.
479
480config SPL_SERIAL_SUPPORT
481 bool "Support serial"
482 depends on SPL
483 help
484 Enable support for serial in SPL. This allows use of a serial UART
485 for displaying messages while SPL is running. It also brings in
486 printf() and panic() functions. This should normally be enabled
487 unless there are space reasons not to. Even then, consider
488 enabling USE_TINY_PRINTF which is a small printf() version.
489
490config SPL_SPI_FLASH_SUPPORT
491 bool "Support SPI flash drivers"
492 depends on SPL
493 help
494 Enable support for using SPI flash in SPL, and loading U-Boot from
495 SPI flash. SPI flash (Serial Peripheral Bus flash) is named after
496 the SPI bus that is used to connect it to a system. It is a simple
497 but fast bidirectional 4-wire bus (clock, chip select and two data
498 lines). This enables the drivers in drivers/mtd/spi as part of an
499 SPL build. This normally requires SPL_SPI_SUPPORT.
500
501config SPL_SPI_SUPPORT
502 bool "Support SPI drivers"
503 depends on SPL
504 help
505 Enable support for using SPI in SPL. This is used for connecting
506 to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for
507 more details on that. The SPI driver provides the transport for
508 data between the SPI flash and the CPU. This option can be used to
509 enable SPI drivers that are needed for other purposes also, such
510 as a SPI PMIC.
511
Simon Glass11bde1c2016-09-13 07:05:23 -0600512config SPL_USB_HOST_SUPPORT
513 bool "Support USB host drivers"
514 depends on SPL
515 help
516 Enable access to USB (Universal Serial Bus) host devices so that
517 SPL can load U-Boot from a connected USB peripheral, such as a USB
518 flash stick. While USB takes a little longer to start up than most
519 buses, it is very flexible since many different types of storage
520 device can be attached. This option enables the drivers in
521 drivers/usb/host as part of an SPL build.
522
523config SPL_USB_SUPPORT
524 bool "Support loading from USB"
525 depends on SPL_USB_HOST_SUPPORT
526 help
527 Enable support for USB devices in SPL. This allows use of USB
528 devices such as hard drives and flash drivers for loading U-Boot.
529 The actual drivers are enabled separately using the normal U-Boot
530 config options. This enables loading from USB using a configured
531 device.
532
Stefan Agnere94793c2016-11-21 10:58:53 -0800533config SPL_USB_GADGET_SUPPORT
534 bool "Suppport USB Gadget drivers"
535 depends on SPL
536 help
537 Enable USB Gadget API which allows to enable USB device functions
538 in SPL.
539
540if SPL_USB_GADGET_SUPPORT
541
542config SPL_USBETH_SUPPORT
543 bool "Support USB Ethernet drivers"
544 help
545 Enable access to the USB network subsystem and associated
546 drivers in SPL. This permits SPL to load U-Boot over a
547 USB-connected Ethernet link (such as a USB Ethernet dongle) rather
548 than from an onboard peripheral. Environment support is required
549 since the network stack uses a number of environment variables.
550 See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT.
551
Stefan Agner59917032016-11-21 10:58:52 -0800552config SPL_DFU_SUPPORT
553 bool "Support DFU (Device Firmware Upgarde)"
Stefan Agner59917032016-11-21 10:58:52 -0800554 select SPL_HASH_SUPPORT
555 help
556 This feature enables the DFU (Device Firmware Upgarde) in SPL with
557 RAM memory device support. The ROM code will load and execute
558 the SPL built with dfu. The user can load binaries (u-boot/kernel) to
559 selected device partition from host-pc using dfu-utils.
560 This feature is useful to flash the binaries to factory or bare-metal
561 boards using USB interface.
562
563choice
564 bool "DFU device selection"
565 depends on SPL_DFU_SUPPORT
566
567config SPL_DFU_RAM
568 bool "RAM device"
Stefan Agner22802f42016-12-23 07:51:53 +0100569 depends on SPL_DFU_SUPPORT && SPL_RAM_SUPPORT
Stefan Agner59917032016-11-21 10:58:52 -0800570 help
571 select RAM/DDR memory device for loading binary images
572 (u-boot/kernel) to the selected device partition using
573 DFU and execute the u-boot/kernel from RAM.
574
575endchoice
576
Stefan Agnere94793c2016-11-21 10:58:53 -0800577endif
578
Simon Glass11bde1c2016-09-13 07:05:23 -0600579config SPL_WATCHDOG_SUPPORT
580 bool "Support watchdog drivers"
581 depends on SPL
582 help
583 Enable support for watchdog drivers in SPL. A watchdog is
584 typically a hardware peripheral which can reset the system when it
585 detects no activity for a while (such as a software crash). This
586 enables the drivers in drivers/watchdog as part of an SPL build.
587
588config SPL_YMODEM_SUPPORT
589 bool "Support loading using Ymodem"
590 depends on SPL
591 help
592 While loading from serial is slow it can be a useful backup when
593 there is no other option. The Ymodem protocol provides a reliable
594 means of transmitting U-Boot over a serial line for using in SPL,
595 with a checksum to ensure correctness.
596
Simon Glassf73329e2016-09-12 23:18:27 -0600597config TPL_ENV_SUPPORT
598 bool "Support an environment"
599 depends on TPL
600 help
601 Enable environment support in TPL. See SPL_ENV_SUPPORT for details.
602
603config TPL_I2C_SUPPORT
604 bool "Support I2C"
605 depends on TPL
606 help
607 Enable support for the I2C bus in SPL. See SPL_I2C_SUPPORT for
608 details.
609
610config TPL_LIBCOMMON_SUPPORT
611 bool "Support common libraries"
612 depends on TPL
613 help
614 Enable support for common U-Boot libraries within TPL. See
615 SPL_LIBCOMMON_SUPPORT for details.
616
617config TPL_LIBGENERIC_SUPPORT
618 bool "Support generic libraries"
619 depends on TPL
620 help
621 Enable support for generic U-Boot libraries within TPL. See
622 SPL_LIBGENERIC_SUPPORT for details.
623
624config TPL_MPC8XXX_INIT_DDR_SUPPORT
625 bool "Support MPC8XXX DDR init"
626 depends on TPL
627 help
628 Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See
629 SPL_MPC8XXX_INIT_DDR_SUPPORT for details.
630
631config TPL_MMC_SUPPORT
632 bool "Support MMC"
633 depends on TPL
634 help
635 Enable support for MMC within TPL. See SPL_MMC_SUPPORT for details.
636
637config TPL_NAND_SUPPORT
638 bool "Support NAND flash"
639 depends on TPL
640 help
641 Enable support for NAND in SPL. See SPL_NAND_SUPPORT for details.
642
643config TPL_SERIAL_SUPPORT
644 bool "Support serial"
645 depends on TPL
646 help
647 Enable support for serial in SPL. See SPL_SERIAL_SUPPORT for
648 details.
649
650config TPL_SPI_FLASH_SUPPORT
651 bool "Support SPI flash drivers"
652 depends on TPL
653 help
654 Enable support for using SPI flash in SPL. See SPL_SPI_FLASH_SUPPORT
655 for details.
656
657config TPL_SPI_SUPPORT
658 bool "Support SPI drivers"
659 depends on TPL
660 help
661 Enable support for using SPI in SPL. See SPL_SPI_SUPPORT for
662 details.
663
Simon Glass11bde1c2016-09-13 07:05:23 -0600664endmenu