blob: 2af26a881af05a3cec061ccdb68e5ee4eb9fa237 [file] [log] [blame]
Simon Glass1e3911a2016-09-13 07:05:23 -06001menu "SPL / TPL"
2
Simon Glassffe19762016-09-12 23:18:22 -06003config SUPPORT_SPL
4 bool
5
6config SUPPORT_TPL
7 bool
8
B, Ravi4cca5cf2017-05-04 15:45:29 +05309config SPL_DFU_NO_RESET
10 bool
11
Simon Glassffe19762016-09-12 23:18:22 -060012config 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
Tom Rini623d67e2018-02-06 12:15:38 -050019config 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
Tom Rini3c82f982017-05-22 19:21:57 +000028if SPL
29
Philipp Tomsichbe1c53a2017-07-28 19:20:49 +020030config SPL_LDSCRIPT
31 string "Linker script for the SPL stage"
32 default "arch/$(ARCH)/cpu/u-boot-spl.lds"
Philipp Tomsichbe1c53a2017-07-28 19:20:49 +020033 help
34 The SPL stage will usually require a different linker-script
35 (as it runs from a different memory region) than the regular
36 U-Boot stage. Set this to the path of the linker-script to
37 be used for SPL.
38
Ley Foon Tan48fcc4a2017-05-03 17:13:32 +080039config SPL_BOARD_INIT
Ley Foon Tan48fcc4a2017-05-03 17:13:32 +080040 bool "Call board-specific initialization in SPL"
41 help
42 If this option is enabled, U-Boot will call the function
43 spl_board_init() from board_init_r(). This function should be
44 provided by the board.
45
Philipp Tomsich83ad7022017-06-22 23:38:36 +020046config SPL_BOOTROM_SUPPORT
47 bool "Support returning to the BOOTROM"
48 help
49 Some platforms (e.g. the Rockchip RK3368) provide support in their
50 ROM for loading the next boot-stage after performing basic setup
51 from the SPL stage.
52
53 Enable this option, to return to the BOOTROM through the
54 BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
55 boot device list, if not implemented for a given board)
56
Lukasz Majewski97c995d2018-05-02 16:10:50 +020057config SPL_BOOTCOUNT_LIMIT
58 bool "Support bootcount in SPL"
59 depends on SPL_ENV_SUPPORT
60 help
61 On some boards, which use 'falcon' mode, it is necessary to check
62 and increment the number of boot attempts. Such boards do not
63 use proper U-Boot for normal boot flow and hence needs those
64 adjustments to be done in the SPL.
65
Andrew F. Davisb4be3c32017-02-16 11:18:38 -060066config SPL_RAW_IMAGE_SUPPORT
67 bool "Support SPL loading and booting of RAW images"
Andrew F. Davisb4be3c32017-02-16 11:18:38 -060068 default n if (ARCH_MX6 && (SPL_MMC_SUPPORT || SPL_SATA_SUPPORT))
Andrew F. Davis1c97f1e2017-02-16 11:18:40 -060069 default y if !TI_SECURE_DEVICE
Andrew F. Davisb4be3c32017-02-16 11:18:38 -060070 help
71 SPL will support loading and booting a RAW image when this option
72 is y. If this is not set, SPL will move on to other available
73 boot media to find a suitable image.
74
Andrew F. Davis74630342017-02-16 11:18:39 -060075config SPL_LEGACY_IMAGE_SUPPORT
76 bool "Support SPL loading and booting of Legacy images"
Andrew F. Davis1c97f1e2017-02-16 11:18:40 -060077 default y if !TI_SECURE_DEVICE
Andrew F. Davis74630342017-02-16 11:18:39 -060078 help
79 SPL will support loading and booting Legacy images when this option
80 is y. If this is not set, SPL will move on to other available
81 boot media to find a suitable image.
82
Simon Glassffe19762016-09-12 23:18:22 -060083config SPL_SYS_MALLOC_SIMPLE
84 bool
Simon Glassffe19762016-09-12 23:18:22 -060085 prompt "Only use malloc_simple functions in the SPL"
86 help
87 Say Y here to only use the *_simple malloc functions from
88 malloc_simple.c, rather then using the versions from dlmalloc.c;
89 this will make the SPL binary smaller at the cost of more heap
90 usage as the *_simple malloc functions do not re-use free-ed mem.
91
Philipp Tomsich0c8e75c2017-06-30 18:57:25 +020092config TPL_SYS_MALLOC_SIMPLE
93 bool
94 prompt "Only use malloc_simple functions in the TPL"
95 help
96 Say Y here to only use the *_simple malloc functions from
97 malloc_simple.c, rather then using the versions from dlmalloc.c;
98 this will make the TPL binary smaller at the cost of more heap
99 usage as the *_simple malloc functions do not re-use free-ed mem.
100
Simon Glassffe19762016-09-12 23:18:22 -0600101config SPL_STACK_R
Simon Glassffe19762016-09-12 23:18:22 -0600102 bool "Enable SDRAM location for SPL stack"
103 help
104 SPL starts off execution in SRAM and thus typically has only a small
105 stack available. Since SPL sets up DRAM while in its board_init_f()
106 function, it is possible for the stack to move there before
107 board_init_r() is reached. This option enables a special SDRAM
108 location for the SPL stack. U-Boot SPL switches to this after
109 board_init_f() completes, and before board_init_r() starts.
110
111config SPL_STACK_R_ADDR
112 depends on SPL_STACK_R
113 hex "SDRAM location for SPL stack"
Tom Rinic37e0cf2017-09-17 11:44:49 -0400114 default 0x82000000 if ARCH_OMAP2PLUS
Simon Glassffe19762016-09-12 23:18:22 -0600115 help
116 Specify the address in SDRAM for the SPL stack. This will be set up
117 before board_init_r() is called.
118
119config SPL_STACK_R_MALLOC_SIMPLE_LEN
120 depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE
121 hex "Size of malloc_simple heap after switching to DRAM SPL stack"
122 default 0x100000
123 help
124 Specify the amount of the stack to use as memory pool for
125 malloc_simple after switching the stack to DRAM. This may be set
126 to give board_init_r() a larger heap then the initial heap in
127 SRAM which is limited to SYS_MALLOC_F_LEN bytes.
128
129config SPL_SEPARATE_BSS
Simon Glassffe19762016-09-12 23:18:22 -0600130 bool "BSS section is in a different memory region from text"
131 help
132 Some platforms need a large BSS region in SPL and can provide this
133 because RAM is already set up. In this case BSS can be moved to RAM.
134 This option should then be enabled so that the correct device tree
135 location is used. Normally we put the device tree at the end of BSS
136 but with this option enabled, it goes at _image_binary_end.
137
Anatolij Gustschin6fe74d22018-01-25 18:45:22 +0100138config SPL_DISABLE_BANNER_PRINT
139 bool "Disable output of the SPL banner 'U-Boot SPL ...'"
140 help
141 If this option is enabled, SPL will not print the banner with version
142 info. Selecting this option could be useful to reduce SPL boot time
143 (e.g. approx. 6 ms slower, when output on i.MX6 with 115200 baud).
144
Simon Glassf481ab12016-09-24 18:19:56 -0600145config SPL_DISPLAY_PRINT
Simon Glassf481ab12016-09-24 18:19:56 -0600146 bool "Display a board-specific message in SPL"
147 help
148 If this option is enabled, U-Boot will call the function
149 spl_display_print() immediately after displaying the SPL console
150 banner ("U-Boot SPL ..."). This function should be provided by
151 the board.
152
Semen Protsenko7e3ba482016-11-16 19:19:05 +0200153config SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
154 bool "MMC raw mode: by sector"
Fabio Estevam22a1fab2018-06-11 15:08:05 -0300155 default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER || \
156 ARCH_MX6 || ARCH_MX7 || \
Semen Protsenko7e3ba482016-11-16 19:19:05 +0200157 ARCH_ROCKCHIP || ARCH_MVEBU || ARCH_SOCFPGA || \
158 ARCH_AT91 || ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || \
159 OMAP44XX || OMAP54XX || AM33XX || AM43XX
160 help
161 Use sector number for specifying U-Boot location on MMC/SD in
162 raw mode.
163
164config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
165 hex "Address on the MMC to load U-Boot from"
Tom Rini3c82f982017-05-22 19:21:57 +0000166 depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
Semen Protsenko7e3ba482016-11-16 19:19:05 +0200167 default 0x50 if ARCH_SUNXI
168 default 0x75 if ARCH_DAVINCI
Fabio Estevam22a1fab2018-06-11 15:08:05 -0300169 default 0x8a if ARCH_MX6 || ARCH_MX7
Kever Yang6cc131d2017-11-02 15:16:34 +0800170 default 0x100 if ARCH_UNIPHIER
Semen Protsenko7e3ba482016-11-16 19:19:05 +0200171 default 0x140 if ARCH_MVEBU
172 default 0x200 if ARCH_SOCFPGA || ARCH_AT91
173 default 0x300 if ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || OMAP44XX || \
174 OMAP54XX || AM33XX || AM43XX
Kever Yang6cc131d2017-11-02 15:16:34 +0800175 default 0x4000 if ARCH_ROCKCHIP
Semen Protsenko7e3ba482016-11-16 19:19:05 +0200176 help
177 Address on the MMC to load U-Boot from, when the MMC is being used
178 in raw mode. Units: MMC sectors (1 sector = 512 bytes).
179
Dalon Westergreenf5ba9852017-02-10 17:15:35 -0800180config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
181 bool "MMC Raw mode: by partition"
Dalon Westergreenf5ba9852017-02-10 17:15:35 -0800182 help
183 Use a partition for loading U-Boot when using MMC/SD in raw mode.
184
185config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
186 hex "Partition to use to load U-Boot from"
Tom Rini3c82f982017-05-22 19:21:57 +0000187 depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
Dalon Westergreenf5ba9852017-02-10 17:15:35 -0800188 default 1
189 help
190 Partition on the MMC to load U-Boot from when the MMC is being
191 used in raw mode
192
Dalon Westergreen8d770f42017-02-10 17:15:34 -0800193config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
194 bool "MMC raw mode: by partition type"
Tom Rini3c82f982017-05-22 19:21:57 +0000195 depends on DOS_PARTITION && SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
Dalon Westergreen8d770f42017-02-10 17:15:34 -0800196 help
197 Use partition type for specifying U-Boot partition on MMC/SD in
198 raw mode. U-Boot will be loaded from the first partition of this
199 type to be found.
200
201config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
202 hex "Partition Type on the MMC to load U-Boot from"
Tom Rini3c82f982017-05-22 19:21:57 +0000203 depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
Dalon Westergreen8d770f42017-02-10 17:15:34 -0800204 help
205 Partition Type on the MMC to load U-Boot from, when the MMC is being
206 used in raw mode.
207
Simon Glass1e3911a2016-09-13 07:05:23 -0600208config SPL_CRC32_SUPPORT
209 bool "Support CRC32"
210 depends on SPL_FIT
211 help
212 Enable this to support CRC32 in FIT images within SPL. This is a
213 32-bit checksum value that can be used to verify images. This is
214 the least secure type of checksum, suitable for detected
215 accidental image corruption. For secure applications you should
216 consider SHA1 or SHA256.
217
218config SPL_MD5_SUPPORT
219 bool "Support MD5"
220 depends on SPL_FIT
221 help
222 Enable this to support MD5 in FIT images within SPL. An MD5
223 checksum is a 128-bit hash value used to check that the image
224 contents have not been corrupted. Note that MD5 is not considered
225 secure as it is possible (with a brute-force attack) to adjust the
226 image while still retaining the same MD5 hash value. For secure
227 applications where images may be changed maliciously, you should
228 consider SHA1 or SHA256.
229
230config SPL_SHA1_SUPPORT
231 bool "Support SHA1"
232 depends on SPL_FIT
Tom Rini5bdd9192017-05-15 12:17:49 -0400233 select SHA1
Simon Glass1e3911a2016-09-13 07:05:23 -0600234 help
235 Enable this to support SHA1 in FIT images within SPL. A SHA1
236 checksum is a 160-bit (20-byte) hash value used to check that the
237 image contents have not been corrupted or maliciously altered.
238 While SHA1 is fairly secure it is coming to the end of its life
239 due to the expanding computing power avaiable to brute-force
240 attacks. For more security, consider SHA256.
241
242config SPL_SHA256_SUPPORT
243 bool "Support SHA256"
244 depends on SPL_FIT
Tom Rini5bdd9192017-05-15 12:17:49 -0400245 select SHA256
Simon Glass1e3911a2016-09-13 07:05:23 -0600246 help
247 Enable this to support SHA256 in FIT images within SPL. A SHA256
248 checksum is a 256-bit (32-byte) hash value used to check that the
249 image contents have not been corrupted. SHA256 is recommended for
250 use in secure applications since (as at 2016) there is no known
251 feasible attack that could produce a 'collision' with differing
252 input data. Use this for the highest security. Note that only the
253 SHA256 variant is supported: SHA512 and others are not currently
254 supported in U-Boot.
255
Philipp Tomsich4faa0112017-11-24 13:26:03 +0100256config SPL_FIT_IMAGE_TINY
257 bool "Remove functionality from SPL FIT loading to reduce size"
258 depends on SPL_FIT
259 default y if MACH_SUN50I || MACH_SUN50I_H5
Philipp Tomsich4faa0112017-11-24 13:26:03 +0100260 help
261 Enable this to reduce the size of the FIT image loading code
262 in SPL, if space for the SPL binary is very tight.
263
264 This removes the detection of image types (which forces the
265 first image to be treated as having a U-Boot style calling
266 convention) and skips the recording of each loaded payload
267 (i.e. loadable) into the FDT (modifying the loaded FDT to
268 ensure this information is available to the next image
269 invoked).
270
Simon Glasseca677f2017-01-16 07:03:29 -0700271config SPL_CPU_SUPPORT
272 bool "Support CPU drivers"
Simon Glasseca677f2017-01-16 07:03:29 -0700273 help
274 Enable this to support CPU drivers in SPL. These drivers can set
275 up CPUs and provide information about them such as the model and
276 name. This can be useful in SPL since setting up the CPUs earlier
277 may improve boot performance. Enable this option to build the
278 drivers in drivers/cpu as part of an SPL build.
279
Simon Glass1e3911a2016-09-13 07:05:23 -0600280config SPL_CRYPTO_SUPPORT
281 bool "Support crypto drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600282 help
283 Enable crypto drivers in SPL. These drivers can be used to
284 accelerate secure boot processing in secure applications. Enable
285 this option to build the drivers in drivers/crypto as part of an
286 SPL build.
287
288config SPL_HASH_SUPPORT
289 bool "Support hashing drivers"
Tom Rini5bdd9192017-05-15 12:17:49 -0400290 select SHA1
291 select SHA256
Simon Glass1e3911a2016-09-13 07:05:23 -0600292 help
293 Enable hashing drivers in SPL. These drivers can be used to
294 accelerate secure boot processing in secure applications. Enable
295 this option to build system-specific drivers for hash acceleration
296 as part of an SPL build.
297
298config SPL_DMA_SUPPORT
299 bool "Support DMA drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600300 help
301 Enable DMA (direct-memory-access) drivers in SPL. These drivers
302 can be used to handle memory-to-peripheral data transfer without
303 the CPU moving the data. Enable this option to build the drivers
304 in drivers/dma as part of an SPL build.
305
306config SPL_DRIVERS_MISC_SUPPORT
307 bool "Support misc drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600308 help
309 Enable miscellaneous drivers in SPL. These drivers perform various
310 tasks that don't fall nicely into other categories, Enable this
311 option to build the drivers in drivers/misc as part of an SPL
312 build, for those that support building in SPL (not all drivers do).
313
314config SPL_ENV_SUPPORT
315 bool "Support an environment"
Simon Glass1e3911a2016-09-13 07:05:23 -0600316 help
317 Enable environment support in SPL. The U-Boot environment provides
318 a number of settings (essentially name/value pairs) which can
319 control many aspects of U-Boot's operation. Normally this is not
320 needed in SPL as it has a much simpler task with less
321 configuration. But some boards use this to support 'Falcon' boot
322 on EXT2 and FAT, where SPL boots directly into Linux without
Simon Glass64b723f2017-08-03 12:22:12 -0600323 starting U-Boot first. Enabling this option will make env_get()
Simon Glass6a38e412017-08-03 12:22:09 -0600324 and env_set() available in SPL.
Simon Glass1e3911a2016-09-13 07:05:23 -0600325
B, Ravie94b0242016-09-28 14:46:18 +0530326config SPL_SAVEENV
327 bool "Support save environment"
Tom Rini3c82f982017-05-22 19:21:57 +0000328 depends on SPL_ENV_SUPPORT
Jean-Jacques Hiblotd0531672018-01-04 15:23:32 +0100329 select SPL_MMC_WRITE if ENV_IS_IN_MMC
B, Ravie94b0242016-09-28 14:46:18 +0530330 help
331 Enable save environment support in SPL after setenv. By default
332 the saveenv option is not provided in SPL, but some boards need
333 this support in 'Falcon' boot, where SPL need to boot from
334 different images based on environment variable set by OS. For
335 example OS may set "reboot_image" environment variable to
336 "recovery" inorder to boot recovery image by SPL. The SPL read
337 "reboot_image" and act accordingly and change the reboot_image
Shyam Sainiefe757c2018-06-07 19:47:19 +0530338 to default mode using setenv and save the environment.
B, Ravie94b0242016-09-28 14:46:18 +0530339
Simon Glass1e3911a2016-09-13 07:05:23 -0600340config SPL_ETH_SUPPORT
341 bool "Support Ethernet"
342 depends on SPL_ENV_SUPPORT
343 help
344 Enable access to the network subsystem and associated Ethernet
345 drivers in SPL. This permits SPL to load U-Boot over an Ethernet
346 link rather than from an on-board peripheral. Environment support
347 is required since the network stack uses a number of environment
348 variables. See also SPL_NET_SUPPORT.
349
350config SPL_EXT_SUPPORT
351 bool "Support EXT filesystems"
Simon Glass1e3911a2016-09-13 07:05:23 -0600352 help
353 Enable support for EXT2/3/4 filesystems with SPL. This permits
354 U-Boot (or Linux in Falcon mode) to be loaded from an EXT
355 filesystem from within SPL. Support for the underlying block
356 device (e.g. MMC or USB) must be enabled separately.
357
358config SPL_FAT_SUPPORT
359 bool "Support FAT filesystems"
Sekhar Nori1909a7b2017-06-02 17:53:59 +0530360 select FS_FAT
Simon Glass1e3911a2016-09-13 07:05:23 -0600361 help
362 Enable support for FAT and VFAT filesystems with SPL. This
363 permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT
364 filesystem from within SPL. Support for the underlying block
365 device (e.g. MMC or USB) must be enabled separately.
366
367config SPL_FPGA_SUPPORT
368 bool "Support FPGAs"
Simon Glass1e3911a2016-09-13 07:05:23 -0600369 help
370 Enable support for FPGAs in SPL. Field-programmable Gate Arrays
371 provide software-configurable hardware which is typically used to
372 implement peripherals (such as UARTs, LCD displays, MMC) or
373 accelerate custom processing functions, such as image processing
374 or machine learning. Sometimes it is useful to program the FPGA
375 as early as possible during boot, and this option can enable that
376 within SPL.
377
378config SPL_GPIO_SUPPORT
379 bool "Support GPIO"
Simon Glass1e3911a2016-09-13 07:05:23 -0600380 help
381 Enable support for GPIOs (General-purpose Input/Output) in SPL.
382 GPIOs allow U-Boot to read the state of an input line (high or
383 low) and set the state of an output line. This can be used to
384 drive LEDs, control power to various system parts and read user
385 input. GPIOs can be useful in SPL to enable a 'sign-of-life' LED,
386 for example. Enable this option to build the drivers in
387 drivers/gpio as part of an SPL build.
388
389config SPL_I2C_SUPPORT
390 bool "Support I2C"
Simon Glass1e3911a2016-09-13 07:05:23 -0600391 help
392 Enable support for the I2C (Inter-Integrated Circuit) bus in SPL.
393 I2C works with a clock and data line which can be driven by a
394 one or more masters or slaves. It is a fairly complex bus but is
395 widely used as it only needs two lines for communication. Speeds of
396 400kbps are typical but up to 3.4Mbps is supported by some
397 hardware. I2C can be useful in SPL to configure power management
398 ICs (PMICs) before raising the CPU clock speed, for example.
399 Enable this option to build the drivers in drivers/i2c as part of
400 an SPL build.
401
402config SPL_LIBCOMMON_SUPPORT
403 bool "Support common libraries"
Simon Glass1e3911a2016-09-13 07:05:23 -0600404 help
405 Enable support for common U-Boot libraries within SPL. These
406 libraries include common code to deal with U-Boot images,
407 environment and USB, for example. This option is enabled on many
408 boards. Enable this option to build the code in common/ as part of
409 an SPL build.
410
411config SPL_LIBDISK_SUPPORT
412 bool "Support disk paritions"
Simon Glass1e3911a2016-09-13 07:05:23 -0600413 help
414 Enable support for disk partitions within SPL. 'Disk' is something
415 of a misnomer as it includes non-spinning media such as flash (as
416 used in MMC and USB sticks). Partitions provide a way for a disk
417 to be split up into separate regions, with a partition table placed
418 at the start or end which describes the location and size of each
419 'partition'. These partitions are typically uses as individual block
420 devices, typically with an EXT2 or FAT filesystem in each. This
421 option enables whatever partition support has been enabled in
422 U-Boot to also be used in SPL. It brings in the code in disk/.
423
424config SPL_LIBGENERIC_SUPPORT
425 bool "Support generic libraries"
Simon Glass1e3911a2016-09-13 07:05:23 -0600426 help
427 Enable support for generic U-Boot libraries within SPL. These
428 libraries include generic code to deal with device tree, hashing,
429 printf(), compression and the like. This option is enabled on many
430 boards. Enable this option to build the code in lib/ as part of an
431 SPL build.
432
433config SPL_MMC_SUPPORT
434 bool "Support MMC"
Tom Rini3c82f982017-05-22 19:21:57 +0000435 depends on MMC
Simon Glass1e3911a2016-09-13 07:05:23 -0600436 help
437 Enable support for MMC (Multimedia Card) within SPL. This enables
438 the MMC protocol implementation and allows any enabled drivers to
439 be used within SPL. MMC can be used with or without disk partition
440 support depending on the application (SPL_LIBDISK_SUPPORT). Enable
441 this option to build the drivers in drivers/mmc as part of an SPL
442 build.
443
Jean-Jacques Hiblotd0531672018-01-04 15:23:32 +0100444config SPL_MMC_WRITE
445 bool "MMC/SD/SDIO card support for write operations in SPL"
446 depends on SPL_MMC_SUPPORT
447 default n
448 help
449 Enable write access to MMC and SD Cards in SPL
450
451
Simon Glass1e3911a2016-09-13 07:05:23 -0600452config SPL_MPC8XXX_INIT_DDR_SUPPORT
453 bool "Support MPC8XXX DDR init"
Simon Glass1e3911a2016-09-13 07:05:23 -0600454 help
455 Enable support for DDR-SDRAM (double-data-rate synchronous dynamic
456 random-access memory) on the MPC8XXX family within SPL. This
457 allows DRAM to be set up before loading U-Boot into that DRAM,
458 where it can run.
459
460config SPL_MTD_SUPPORT
461 bool "Support MTD drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600462 help
463 Enable support for MTD (Memory Technology Device) within SPL. MTD
464 provides a block interface over raw NAND and can also be used with
465 SPI flash. This allows SPL to load U-Boot from supported MTD
466 devices. See SPL_NAND_SUPPORT and SPL_ONENAND_SUPPORT for how
467 to enable specific MTD drivers.
468
469config SPL_MUSB_NEW_SUPPORT
470 bool "Support new Mentor Graphics USB"
Simon Glass1e3911a2016-09-13 07:05:23 -0600471 help
472 Enable support for Mentor Graphics USB in SPL. This is a new
473 driver used by some boards. Enable this option to build
474 the drivers in drivers/usb/musb-new as part of an SPL build. The
475 old drivers are in drivers/usb/musb.
476
477config SPL_NAND_SUPPORT
478 bool "Support NAND flash"
Simon Glass1e3911a2016-09-13 07:05:23 -0600479 help
480 Enable support for NAND (Negative AND) flash in SPL. NAND flash
481 can be used to allow SPL to load U-Boot from supported devices.
482 This enables the drivers in drivers/mtd/nand as part of an SPL
483 build.
484
485config SPL_NET_SUPPORT
486 bool "Support networking"
Simon Glass1e3911a2016-09-13 07:05:23 -0600487 help
488 Enable support for network devices (such as Ethernet) in SPL.
489 This permits SPL to load U-Boot over a network link rather than
490 from an on-board peripheral. Environment support is required since
491 the network stack uses a number of environment variables. See also
492 SPL_ETH_SUPPORT.
493
494if SPL_NET_SUPPORT
495config SPL_NET_VCI_STRING
496 string "BOOTP Vendor Class Identifier string sent by SPL"
497 help
498 As defined by RFC 2132 the vendor class identifier field can be
499 sent by the client to identify the vendor type and configuration
500 of a client. This is often used in practice to allow for the DHCP
501 server to specify different files to load depending on if the ROM,
502 SPL or U-Boot itself makes the request
503endif # if SPL_NET_SUPPORT
504
505config SPL_NO_CPU_SUPPORT
506 bool "Drop CPU code in SPL"
Simon Glass1e3911a2016-09-13 07:05:23 -0600507 help
508 This is specific to the ARM926EJ-S CPU. It disables the standard
509 start.S start-up code, presumably so that a replacement can be
510 used on that CPU. You should not enable it unless you know what
511 you are doing.
512
513config SPL_NOR_SUPPORT
514 bool "Support NOR flash"
Simon Glass1e3911a2016-09-13 07:05:23 -0600515 help
516 Enable support for loading U-Boot from memory-mapped NOR (Negative
517 OR) flash in SPL. NOR flash is slow to write but fast to read, and
518 a memory-mapped device makes it very easy to access. Loading from
519 NOR is typically achieved with just a memcpy().
520
Vikas Manocha9e582652017-05-28 12:55:11 -0700521config SPL_XIP_SUPPORT
522 bool "Support XIP"
523 depends on SPL
524 help
525 Enable support for execute in place of U-Boot or kernel image. There
526 is no need to copy image from flash to ram if flash supports execute
527 in place. Its very useful in systems having enough flash but not
528 enough ram to load the image.
529
Simon Glass1e3911a2016-09-13 07:05:23 -0600530config SPL_ONENAND_SUPPORT
531 bool "Support OneNAND flash"
Simon Glass1e3911a2016-09-13 07:05:23 -0600532 help
533 Enable support for OneNAND (Negative AND) flash in SPL. OneNAND is
534 a type of NAND flash and therefore can be used to allow SPL to
535 load U-Boot from supported devices. This enables the drivers in
536 drivers/mtd/onenand as part of an SPL build.
537
Heiko Schocher1d12ba22016-10-06 07:55:15 +0200538config SPL_OS_BOOT
539 bool "Activate Falcon Mode"
Tom Rini3c82f982017-05-22 19:21:57 +0000540 depends on !TI_SECURE_DEVICE
Heiko Schocher1d12ba22016-10-06 07:55:15 +0200541 default n
542 help
543 Enable booting directly to an OS from SPL.
544 for more info read doc/README.falcon
545
Heiko Schocher65928932016-10-06 07:55:16 +0200546if SPL_OS_BOOT
547config SYS_OS_BASE
548 hex "addr, where OS is found"
Tom Rini3c82f982017-05-22 19:21:57 +0000549 depends on SPL_NOR_SUPPORT
Heiko Schocher65928932016-10-06 07:55:16 +0200550 help
551 Specify the address, where the OS image is found, which
552 gets booted.
553
554endif # SPL_OS_BOOT
555
York Sun53492672018-06-14 14:38:48 -0700556config SPL_PAYLOAD
557 string "SPL payload"
558 default "tpl/u-boot-with-tpl.bin" if TPL
559 default "u-boot.bin"
560 help
561 Payload for SPL boot. For backward compability, default to
562 u-boot.bin, i.e. RAW image without any header. In case of
563 TPL, tpl/u-boot-with-tpl.bin. For new boards, suggest to
564 use u-boot.img.
565
Simon Glass6569f3a2017-01-16 07:03:30 -0700566config SPL_PCI_SUPPORT
567 bool "Support PCI drivers"
Simon Glass6569f3a2017-01-16 07:03:30 -0700568 help
569 Enable support for PCI in SPL. For platforms that need PCI to boot,
570 or must perform some init using PCI in SPL, this provides the
571 necessary driver support. This enables the drivers in drivers/pci
572 as part of an SPL build.
573
Simon Glass36258a52017-01-16 07:03:33 -0700574config SPL_PCH_SUPPORT
575 bool "Support PCH drivers"
Simon Glass36258a52017-01-16 07:03:33 -0700576 help
577 Enable support for PCH (Platform Controller Hub) devices in SPL.
578 These are used to set up GPIOs and the SPI peripheral early in
579 boot. This enables the drivers in drivers/pch as part of an SPL
580 build.
581
Simon Glass1e3911a2016-09-13 07:05:23 -0600582config SPL_POST_MEM_SUPPORT
583 bool "Support POST drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600584 help
585 Enable support for POST (Power-on Self Test) in SPL. POST is a
586 procedure that checks that the hardware (CPU or board) appears to
587 be functionally correctly. It is a sanity check that can be
588 performed before booting. This enables the drivers in post/drivers
589 as part of an SPL build.
590
Ley Foon Tan9caf7122018-06-14 18:45:19 +0800591config SPL_DM_RESET
Patrick Delaunay329827a2018-03-12 10:46:05 +0100592 bool "Support reset drivers"
593 depends on SPL
594 help
595 Enable support for reset control in SPL.
596 That can be useful in SPL to handle IP reset in driver, as in U-Boot,
597 by using the generic reset API provided by driver model.
598 This enables the drivers in drivers/reset as part of an SPL build.
599
Simon Glass1e3911a2016-09-13 07:05:23 -0600600config SPL_POWER_SUPPORT
601 bool "Support power drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600602 help
603 Enable support for power control in SPL. This includes support
604 for PMICs (Power-management Integrated Circuits) and some of the
605 features provided by PMICs. In particular, voltage regulators can
606 be used to enable/disable power and vary its voltage. That can be
607 useful in SPL to turn on boot peripherals and adjust CPU voltage
608 so that the clock speed can be increased. This enables the drivers
609 in drivers/power, drivers/power/pmic and drivers/power/regulator
610 as part of an SPL build.
611
Stefan Agnercd01e642016-12-23 07:51:53 +0100612config SPL_RAM_SUPPORT
613 bool "Support booting from RAM"
Stefan Agnercd01e642016-12-23 07:51:53 +0100614 default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ
615 help
616 Enable booting of an image in RAM. The image can be preloaded or
617 it can be loaded by SPL directly into RAM (e.g. using USB).
618
Stefan Agnere2eaac12016-12-23 07:51:52 +0100619config SPL_RAM_DEVICE
620 bool "Support booting from preloaded image in RAM"
Stefan Agnercd01e642016-12-23 07:51:53 +0100621 depends on SPL_RAM_SUPPORT
Stefan Agnere2eaac12016-12-23 07:51:52 +0100622 default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ
623 help
624 Enable booting of an image already loaded in RAM. The image has to
625 be already in memory when SPL takes over, e.g. loaded by the boot
626 ROM.
627
Simon Glassb69691b2017-01-16 07:03:31 -0700628config SPL_RTC_SUPPORT
629 bool "Support RTC drivers"
Simon Glassb69691b2017-01-16 07:03:31 -0700630 help
631 Enable RTC (Real-time Clock) support in SPL. This includes support
632 for reading and setting the time. Some RTC devices also have some
633 non-volatile (battery-backed) memory which is accessible if
634 needed. This enables the drivers in drivers/rtc as part of an SPL
635 build.
636
Simon Glass1e3911a2016-09-13 07:05:23 -0600637config SPL_SATA_SUPPORT
638 bool "Support loading from SATA"
Simon Glass1e3911a2016-09-13 07:05:23 -0600639 help
640 Enable support for SATA (Serial AT attachment) in SPL. This allows
641 use of SATA devices such as hard drives and flash drivers for
642 loading U-Boot. SATA is used in higher-end embedded systems and
643 can provide higher performance than MMC , at somewhat higher
644 expense and power consumption. This enables loading from SATA
645 using a configured device.
646
647config SPL_SERIAL_SUPPORT
648 bool "Support serial"
Alex Kiernan5b404282018-04-19 04:32:54 +0000649 select SPL_PRINTF
650 select SPL_STRTO
Simon Glass1e3911a2016-09-13 07:05:23 -0600651 help
652 Enable support for serial in SPL. This allows use of a serial UART
653 for displaying messages while SPL is running. It also brings in
654 printf() and panic() functions. This should normally be enabled
655 unless there are space reasons not to. Even then, consider
656 enabling USE_TINY_PRINTF which is a small printf() version.
657
658config SPL_SPI_FLASH_SUPPORT
659 bool "Support SPI flash drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600660 help
661 Enable support for using SPI flash in SPL, and loading U-Boot from
662 SPI flash. SPI flash (Serial Peripheral Bus flash) is named after
663 the SPI bus that is used to connect it to a system. It is a simple
664 but fast bidirectional 4-wire bus (clock, chip select and two data
665 lines). This enables the drivers in drivers/mtd/spi as part of an
666 SPL build. This normally requires SPL_SPI_SUPPORT.
667
Marek Vasute2542252018-04-07 16:05:27 +0200668config SPL_SPI_LOAD
669 bool "Support loading from SPI flash"
670 depends on SPL_SPI_FLASH_SUPPORT
671 help
672 Enable support for loading next stage, U-Boot or otherwise, from
673 SPI NOR in U-Boot SPL.
674
Simon Glass1e3911a2016-09-13 07:05:23 -0600675config SPL_SPI_SUPPORT
676 bool "Support SPI drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600677 help
678 Enable support for using SPI in SPL. This is used for connecting
679 to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for
680 more details on that. The SPI driver provides the transport for
681 data between the SPI flash and the CPU. This option can be used to
682 enable SPI drivers that are needed for other purposes also, such
683 as a SPI PMIC.
684
Faiz Abbasae1627c2017-11-14 16:12:31 +0530685config SPL_THERMAL
686 bool "Driver support for thermal devices"
687 help
688 Enable support for temperature-sensing devices. Some SoCs have on-chip
689 temperature sensors to permit warnings, speed throttling or even
690 automatic power-off when the temperature gets too high or low. Other
691 devices may be discrete but connected on a suitable bus.
692
Simon Glass1e3911a2016-09-13 07:05:23 -0600693config SPL_USB_HOST_SUPPORT
694 bool "Support USB host drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600695 help
696 Enable access to USB (Universal Serial Bus) host devices so that
697 SPL can load U-Boot from a connected USB peripheral, such as a USB
698 flash stick. While USB takes a little longer to start up than most
699 buses, it is very flexible since many different types of storage
700 device can be attached. This option enables the drivers in
701 drivers/usb/host as part of an SPL build.
702
703config SPL_USB_SUPPORT
704 bool "Support loading from USB"
705 depends on SPL_USB_HOST_SUPPORT
706 help
707 Enable support for USB devices in SPL. This allows use of USB
708 devices such as hard drives and flash drivers for loading U-Boot.
709 The actual drivers are enabled separately using the normal U-Boot
710 config options. This enables loading from USB using a configured
711 device.
712
Stefan Agner0489c3b2016-11-21 10:58:53 -0800713config SPL_USB_GADGET_SUPPORT
714 bool "Suppport USB Gadget drivers"
Stefan Agner0489c3b2016-11-21 10:58:53 -0800715 help
716 Enable USB Gadget API which allows to enable USB device functions
717 in SPL.
718
719if SPL_USB_GADGET_SUPPORT
720
Faiz Abbasc01553b2018-02-16 21:17:44 +0530721config SPL_USB_ETHER
Stefan Agner0489c3b2016-11-21 10:58:53 -0800722 bool "Support USB Ethernet drivers"
723 help
724 Enable access to the USB network subsystem and associated
725 drivers in SPL. This permits SPL to load U-Boot over a
726 USB-connected Ethernet link (such as a USB Ethernet dongle) rather
727 than from an onboard peripheral. Environment support is required
728 since the network stack uses a number of environment variables.
729 See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT.
730
Stefan Agnere542edd2016-11-21 10:58:52 -0800731config SPL_DFU_SUPPORT
732 bool "Support DFU (Device Firmware Upgarde)"
Stefan Agnere542edd2016-11-21 10:58:52 -0800733 select SPL_HASH_SUPPORT
B, Ravi4cca5cf2017-05-04 15:45:29 +0530734 select SPL_DFU_NO_RESET
B, Ravi7e0c0ea2017-05-04 15:45:28 +0530735 depends on SPL_RAM_SUPPORT
Stefan Agnere542edd2016-11-21 10:58:52 -0800736 help
737 This feature enables the DFU (Device Firmware Upgarde) in SPL with
738 RAM memory device support. The ROM code will load and execute
739 the SPL built with dfu. The user can load binaries (u-boot/kernel) to
740 selected device partition from host-pc using dfu-utils.
741 This feature is useful to flash the binaries to factory or bare-metal
742 boards using USB interface.
743
744choice
745 bool "DFU device selection"
746 depends on SPL_DFU_SUPPORT
747
748config SPL_DFU_RAM
749 bool "RAM device"
Stefan Agnercd01e642016-12-23 07:51:53 +0100750 depends on SPL_DFU_SUPPORT && SPL_RAM_SUPPORT
Stefan Agnere542edd2016-11-21 10:58:52 -0800751 help
752 select RAM/DDR memory device for loading binary images
753 (u-boot/kernel) to the selected device partition using
754 DFU and execute the u-boot/kernel from RAM.
755
756endchoice
757
Stefan Agnerd0d9d212017-08-16 11:00:54 -0700758config SPL_USB_SDP_SUPPORT
759 bool "Support SDP (Serial Download Protocol)"
760 help
761 Enable Serial Download Protocol (SDP) device support in SPL. This
762 allows to download images into memory and execute (jump to) them
763 using the same protocol as implemented by the i.MX family's boot ROM.
Stefan Agner0489c3b2016-11-21 10:58:53 -0800764endif
765
Simon Glass1e3911a2016-09-13 07:05:23 -0600766config SPL_WATCHDOG_SUPPORT
767 bool "Support watchdog drivers"
Simon Glass1e3911a2016-09-13 07:05:23 -0600768 help
769 Enable support for watchdog drivers in SPL. A watchdog is
770 typically a hardware peripheral which can reset the system when it
771 detects no activity for a while (such as a software crash). This
772 enables the drivers in drivers/watchdog as part of an SPL build.
773
774config SPL_YMODEM_SUPPORT
775 bool "Support loading using Ymodem"
Alex Kiernan44ad5502018-04-19 04:32:52 +0000776 depends on SPL_SERIAL_SUPPORT
Simon Glass1e3911a2016-09-13 07:05:23 -0600777 help
778 While loading from serial is slow it can be a useful backup when
779 there is no other option. The Ymodem protocol provides a reliable
780 means of transmitting U-Boot over a serial line for using in SPL,
781 with a checksum to ensure correctness.
782
Philipp Tomsichf6618812017-09-13 21:29:36 +0200783config SPL_ATF
Kever Yang6e79a912017-05-05 11:47:45 +0800784 bool "Support ARM Trusted Firmware"
Tom Rini3c82f982017-05-22 19:21:57 +0000785 depends on ARM64
Kever Yang6e79a912017-05-05 11:47:45 +0800786 help
Philipp Tomsichc4078af2018-01-02 21:16:43 +0100787 ATF(ARM Trusted Firmware) is a component for ARM AArch64 which
788 is loaded by SPL (which is considered as BL2 in ATF terminology).
Kever Yang6e79a912017-05-05 11:47:45 +0800789 More detail at: https://github.com/ARM-software/arm-trusted-firmware
790
Philipp Tomsichc4078af2018-01-02 21:16:43 +0100791config SPL_ATF_NO_PLATFORM_PARAM
792 bool "Pass no platform parameter"
793 depends on SPL_ATF
794 help
795 While we expect to call a pointer to a valid FDT (or NULL)
796 as the platform parameter to an ATF, some ATF versions are
797 not U-Boot aware and have an insufficiently robust parameter
798 validation to gracefully reject a FDT being passed.
799
800 If this option is enabled, the spl_atf os-type handler will
801 always pass NULL for the platform parameter.
802
803 If your ATF is affected, say Y.
804
Alex Kiernan10238ef2018-03-15 22:11:46 +0000805config SPL_AM33XX_ENABLE_RTC32K_OSC
806 bool "Enable the RTC32K OSC on AM33xx based platforms"
807 default y if AM33XX
808 help
809 Enable access to the AM33xx RTC and select the external 32kHz clock
810 source.
811
Tom Rini3c82f982017-05-22 19:21:57 +0000812config TPL
813 bool
814 depends on SUPPORT_TPL
815 prompt "Enable TPL"
816 help
817 If you want to build TPL as well as the normal image and SPL, say Y.
818
819if TPL
820
Kever Yang2b5994b2018-01-20 18:00:26 +0800821config TPL_BOARD_INIT
822 bool "Call board-specific initialization in TPL"
823 help
824 If this option is enabled, U-Boot will call the function
825 spl_board_init() from board_init_r(). This function should be
826 provided by the board.
827
Philipp Tomsichbe1c53a2017-07-28 19:20:49 +0200828config TPL_LDSCRIPT
829 string "Linker script for the TPL stage"
830 depends on TPL
831 help
832 The TPL stage will usually require a different linker-script
833 (as it runs from a different memory region) than the regular
834 U-Boot stage. Set this to the path of the linker-script to
835 be used for TPL.
836
Philipp Tomsichdeff59a2017-07-28 20:02:34 +0200837 May be left empty to trigger the Makefile infrastructure to
838 fall back to the linker-script used for the SPL stage.
839
840config TPL_NEEDS_SEPARATE_TEXT_BASE
841 bool "TPL needs a separate text-base"
842 default n
843 depends on TPL
844 help
845 Enable, if the TPL stage should not inherit its text-base
846 from the SPL stage. When enabled, a base address for the
847 .text sections of the TPL stage has to be set below.
848
849config TPL_NEEDS_SEPARATE_STACK
850 bool "TPL needs a separate initial stack-pointer"
851 default n
852 depends on TPL
853 help
854 Enable, if the TPL stage should not inherit its initial
855 stack-pointer from the settings for the SPL stage.
856
857config TPL_TEXT_BASE
858 hex "Base address for the .text section of the TPL stage"
859 depends on TPL_NEEDS_SEPARATE_TEXT_BASE
860 help
861 The base address for the .text section of the TPL stage.
862
863config TPL_MAX_SIZE
864 int "Maximum size (in bytes) for the TPL stage"
Philipp Tomsich7d1319b2017-07-28 20:20:41 +0200865 default 0
Philipp Tomsichdeff59a2017-07-28 20:02:34 +0200866 depends on TPL
867 help
868 The maximum size (in bytes) of the TPL stage.
869
870config TPL_STACK
871 hex "Address of the initial stack-pointer for the TPL stage"
872 depends on TPL_NEEDS_SEPARATE_STACK
873 help
874 The address of the initial stack-pointer for the TPL stage.
875 Usually this will be the (aligned) top-of-stack.
876
Philipp Tomsich2706fb12017-07-04 14:24:53 +0200877config TPL_BOOTROM_SUPPORT
878 bool "Support returning to the BOOTROM (from TPL)"
879 help
880 Some platforms (e.g. the Rockchip RK3368) provide support in their
881 ROM for loading the next boot-stage after performing basic setup
882 from the TPL stage.
883
884 Enable this option, to return to the BOOTROM through the
885 BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
886 boot device list, if not implemented for a given board)
887
Philipp Tomsich0e221882017-07-04 14:27:02 +0200888config TPL_DRIVERS_MISC_SUPPORT
889 bool "Support misc drivers in TPL"
890 help
891 Enable miscellaneous drivers in TPL. These drivers perform various
892 tasks that don't fall nicely into other categories, Enable this
893 option to build the drivers in drivers/misc as part of an TPL
894 build, for those that support building in TPL (not all drivers do).
895
Simon Glass688be332016-09-12 23:18:27 -0600896config TPL_ENV_SUPPORT
897 bool "Support an environment"
Simon Glass688be332016-09-12 23:18:27 -0600898 help
899 Enable environment support in TPL. See SPL_ENV_SUPPORT for details.
900
901config TPL_I2C_SUPPORT
902 bool "Support I2C"
Simon Glass688be332016-09-12 23:18:27 -0600903 help
Philipp Tomsich6c7a88e2017-07-28 17:03:03 +0200904 Enable support for the I2C bus in TPL. See SPL_I2C_SUPPORT for
Simon Glass688be332016-09-12 23:18:27 -0600905 details.
906
907config TPL_LIBCOMMON_SUPPORT
908 bool "Support common libraries"
Simon Glass688be332016-09-12 23:18:27 -0600909 help
910 Enable support for common U-Boot libraries within TPL. See
911 SPL_LIBCOMMON_SUPPORT for details.
912
913config TPL_LIBGENERIC_SUPPORT
914 bool "Support generic libraries"
Simon Glass688be332016-09-12 23:18:27 -0600915 help
916 Enable support for generic U-Boot libraries within TPL. See
917 SPL_LIBGENERIC_SUPPORT for details.
918
919config TPL_MPC8XXX_INIT_DDR_SUPPORT
920 bool "Support MPC8XXX DDR init"
Simon Glass688be332016-09-12 23:18:27 -0600921 help
922 Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See
923 SPL_MPC8XXX_INIT_DDR_SUPPORT for details.
924
925config TPL_MMC_SUPPORT
926 bool "Support MMC"
Tom Rini3c82f982017-05-22 19:21:57 +0000927 depends on MMC
Simon Glass688be332016-09-12 23:18:27 -0600928 help
929 Enable support for MMC within TPL. See SPL_MMC_SUPPORT for details.
930
931config TPL_NAND_SUPPORT
932 bool "Support NAND flash"
Simon Glass688be332016-09-12 23:18:27 -0600933 help
Philipp Tomsich6c7a88e2017-07-28 17:03:03 +0200934 Enable support for NAND in TPL. See SPL_NAND_SUPPORT for details.
Simon Glass688be332016-09-12 23:18:27 -0600935
Marek Vasut84493722018-04-07 17:03:45 +0200936config TPL_RAM_SUPPORT
937 bool "Support booting from RAM"
938 help
939 Enable booting of an image in RAM. The image can be preloaded or
940 it can be loaded by TPL directly into RAM (e.g. using USB).
941
942config TPL_RAM_DEVICE
943 bool "Support booting from preloaded image in RAM"
944 depends on TPL_RAM_SUPPORT
945 help
946 Enable booting of an image already loaded in RAM. The image has to
947 be already in memory when TPL takes over, e.g. loaded by the boot
948 ROM.
949
Simon Glass688be332016-09-12 23:18:27 -0600950config TPL_SERIAL_SUPPORT
951 bool "Support serial"
Alex Kiernan5b404282018-04-19 04:32:54 +0000952 select TPL_PRINTF
953 select TPL_STRTO
Simon Glass688be332016-09-12 23:18:27 -0600954 help
Philipp Tomsich6c7a88e2017-07-28 17:03:03 +0200955 Enable support for serial in TPL. See SPL_SERIAL_SUPPORT for
Simon Glass688be332016-09-12 23:18:27 -0600956 details.
957
958config TPL_SPI_FLASH_SUPPORT
959 bool "Support SPI flash drivers"
Simon Glass688be332016-09-12 23:18:27 -0600960 help
Philipp Tomsich6c7a88e2017-07-28 17:03:03 +0200961 Enable support for using SPI flash in TPL. See SPL_SPI_FLASH_SUPPORT
Simon Glass688be332016-09-12 23:18:27 -0600962 for details.
963
Marek Vasute6b94da2018-04-07 16:05:46 +0200964config TPL_SPI_LOAD
965 bool "Support loading from SPI flash"
966 depends on TPL_SPI_FLASH_SUPPORT
967 help
968 Enable support for loading next stage, U-Boot or otherwise, from
969 SPI NOR in U-Boot TPL.
970
Simon Glass688be332016-09-12 23:18:27 -0600971config TPL_SPI_SUPPORT
972 bool "Support SPI drivers"
Simon Glass688be332016-09-12 23:18:27 -0600973 help
Philipp Tomsich6c7a88e2017-07-28 17:03:03 +0200974 Enable support for using SPI in TPL. See SPL_SPI_SUPPORT for
Simon Glass688be332016-09-12 23:18:27 -0600975 details.
976
Marek Vasut04774242018-04-07 16:06:11 +0200977config TPL_YMODEM_SUPPORT
978 bool "Support loading using Ymodem"
Alex Kiernan44ad5502018-04-19 04:32:52 +0000979 depends on TPL_SERIAL_SUPPORT
Marek Vasut04774242018-04-07 16:06:11 +0200980 help
981 While loading from serial is slow it can be a useful backup when
982 there is no other option. The Ymodem protocol provides a reliable
983 means of transmitting U-Boot over a serial line for using in TPL,
984 with a checksum to ensure correctness.
985
Tom Rini3c82f982017-05-22 19:21:57 +0000986endif # TPL
987
988endif # SPL
Simon Glass1e3911a2016-09-13 07:05:23 -0600989endmenu