[u-boot.git] / common / spl / Kconfig.tpl

menu "TPL configuration options"
	depends on TPL

config TPL_SIZE_LIMIT
	hex "Maximum size of TPL image"
	default 0x0
	help
	  Specifies the maximum length of the U-Boot TPL image.
	  If this value is zero, it is ignored.

config TPL_BINMAN_SYMBOLS
	bool "Support binman symbols in TPL"
	depends on TPL_FRAMEWORK && BINMAN
	default y
	help
	  This enables use of symbols in TPL which refer to other entries in
	  the same binman image as the TPL. These can be declared with the
	  binman_sym_declare(type, entry, prop) macro and accessed by the
	  binman_sym(type, entry, prop) macro defined in binman_sym.h.

	  See tools/binman/binman.rst for a detailed explanation.

config TPL_BINMAN_UBOOT_SYMBOLS
	bool "Declare binman symbols for U-Boot phases in TPL"
	depends on TPL_BINMAN_SYMBOLS
	default n if ARCH_IMX8M
	default y
	help
	  This enables use of symbols in TPL which refer to U-Boot phases,
	  enabling TPL to obtain the location and size of its next phase simply
	  by calling spl_get_image_pos() and spl_get_image_size().

	  For this to work, you must have all U-Boot phases in the same binman
	  image, so binman can update TPL with the locations of everything.

config TPL_FRAMEWORK
	bool "Support TPL based upon the common SPL framework"
	default y if SPL_FRAMEWORK
	help
	  Enable the SPL framework under common/spl/ for TPL builds.
	  This framework supports MMC, NAND and YMODEM and other methods
	  loading of U-Boot's SPL stage. If unsure, say Y.

config TPL_BANNER_PRINT
	bool "Enable output of the TPL banner 'U-Boot TPL ...'"
	default y
	help
	  If this option is enabled, TPL will print the banner with version
	  info. Disabling this option could be useful to reduce TPL boot time
	  (e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud).

config TPL_HANDOFF
	bool "Pass hand-off information from TPL to SPL and U-Boot proper"
	depends on HANDOFF && TPL_BLOBLIST
	default y
	help
	  This option enables TPL to write handoff information. This can be
	  used to pass information like the size of SDRAM from TPL to U-Boot
	  proper. The information is also available to SPL if it is useful
	  there.

config TPL_BOARD_INIT
	bool "Call board-specific initialization in TPL"
	help
	  If this option is enabled, U-Boot will call the function
	  spl_board_init() from board_init_r(). This function should be
	  provided by the board.

config TPL_BOOTCOUNT_LIMIT
	bool "Support bootcount in TPL"
	depends on TPL_ENV_SUPPORT
	help
	  If this option is enabled, the TPL will support bootcount.
	  For example, it may be useful to choose the device to boot.

config TPL_SYS_MALLOC_SIMPLE
	bool
	prompt "Only use malloc_simple functions in the TPL"
	help
	  Say Y here to only use the *_simple malloc functions from
	  malloc_simple.c, rather then using the versions from dlmalloc.c;
	  this will make the TPL binary smaller at the cost of more heap
	  usage as the *_simple malloc functions do not re-use free-ed mem.

config TPL_SEPARATE_BSS
	bool "BSS section is in a different memory region from text"
	default y if SPL_SEPARATE_BSS
	help
	  Some platforms need a large BSS region in TPL and can provide this
	  because RAM is already set up. In this case BSS can be moved to RAM.
	  This option should then be enabled so that the correct device tree
	  location is used. Normally we put the device tree at the end of BSS
	  but with this option enabled, it goes at _image_binary_end.

config TPL_LDSCRIPT
	string "Linker script for the TPL stage"
	default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64
	default "arch/\$(ARCH)/cpu/u-boot-spl.lds"
	help
	  The TPL stage will usually require a different linker-script
	  (as it runs from a different memory region) than the regular
	  U-Boot stage.  Set this to the path of the linker-script to
	  be used for TPL.

	  May be left empty to trigger the Makefile infrastructure to
	  fall back to the linker-script used for the SPL stage.

config TPL_NEEDS_SEPARATE_STACK
	bool "TPL needs a separate initial stack-pointer"
	help
	  Enable, if the TPL stage should not inherit its initial
	  stack-pointer from the settings for the SPL stage.

config TPL_POWER
	bool "Support power drivers"
	help
	  Enable support for power control in TPL. This includes support
	  for PMICs (Power-management Integrated Circuits) and some of the
	  features provided by PMICs. In particular, voltage regulators can
	  be used to enable/disable power and vary its voltage. That can be
	  useful in TPL to turn on boot peripherals and adjust CPU voltage
	  so that the clock speed can be increased. This enables the drivers
	  in drivers/power, drivers/power/pmic and drivers/power/regulator
	  as part of an TPL build.

config TPL_TEXT_BASE
	hex "Base address for the .text section of the TPL stage"
	default 0
	help
	  The base address for the .text section of the TPL stage.

config TPL_MAX_SIZE
	hex "Maximum size (in bytes) for the TPL stage"
	default 0x2e000 if ROCKCHIP_RK3399
	default 0x8000 if ROCKCHIP_RK3288 || ROCKCHIP_RV1126
	default 0x7000 if ROCKCHIP_RK322X || ROCKCHIP_RK3328 || ROCKCHIP_RK3368
	default 0x2800 if ROCKCHIP_PX30
	default 0x0
	help
	  The maximum size (in bytes) of the TPL stage.

config TPL_STACK
	hex "Address of the initial stack-pointer for the TPL stage"
	depends on TPL_NEEDS_SEPARATE_STACK
	help
	  The address of the initial stack-pointer for the TPL stage.
	  Usually this will be the (aligned) top-of-stack.

config TPL_READ_ONLY
	bool
	depends on TPL_OF_PLATDATA
	select TPL_OF_PLATDATA_NO_BIND
	select TPL_OF_PLATDATA_RT
	help
	  Some platforms (e.g. x86 Apollo Lake) load SPL into a read-only
	  section of memory. This means that of-platdata must make a copy (in
	  writeable memory) of anything it wants to modify, such as
	  device-private data.

config TPL_BOOTROM_SUPPORT
	bool "Support returning to the BOOTROM (from TPL)"
	help
	  Some platforms (e.g. the Rockchip RK3368) provide support in their
	  ROM for loading the next boot-stage after performing basic setup
	  from the TPL stage.

	  Enable this option, to return to the BOOTROM through the
	  BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
	  boot device list, if not implemented for a given board)

config TPL_CRC32
	bool "Support CRC32 in TPL"
	default y if TPL_ENV_SUPPORT || TPL_BLOBLIST
	help
	  Enable this to support CRC32 in uImages or FIT images within SPL.
	  This is a 32-bit checksum value that can be used to verify images.
	  For FIT images, this is the least secure type of checksum, suitable
	  for detected accidental image corruption. For secure applications you
	  should consider SHA1 or SHA256.

config TPL_DRIVERS_MISC
	bool "Support misc drivers in TPL"
	help
	  Enable miscellaneous drivers in TPL. These drivers perform various
	  tasks that don't fall nicely into other categories, Enable this
	  option to build the drivers in drivers/misc as part of an TPL
	  build, for those that support building in TPL (not all drivers do).

config TPL_ENV_SUPPORT
	bool "Support an environment"
	help
	  Enable environment support in TPL. See SPL_ENV_SUPPORT for details.

config TPL_GPIO
	bool "Support GPIO in TPL"
	help
	  Enable support for GPIOs (General-purpose Input/Output) in TPL.
	  GPIOs allow U-Boot to read the state of an input line (high or
	  low) and set the state of an output line. This can be used to
	  drive LEDs, control power to various system parts and read user
	  input. GPIOs can be useful in TPL to enable a 'sign-of-life' LED,
	  for example. Enable this option to build the drivers in
	  drivers/gpio as part of an TPL build.

config TPL_I2C
	bool "Support I2C"
	help
	  Enable support for the I2C bus in TPL. See SPL_I2C for
	  details.

config TPL_LIBCOMMON_SUPPORT
	bool "Support common libraries"
	help
	  Enable support for common U-Boot libraries within TPL. See
	  SPL_LIBCOMMON_SUPPORT for details.

config TPL_LIBGENERIC_SUPPORT
	bool "Support generic libraries"
	help
	  Enable support for generic U-Boot libraries within TPL. See
	  SPL_LIBGENERIC_SUPPORT for details.

config TPL_MPC8XXX_INIT_DDR
	bool "Support MPC8XXX DDR init"
	help
	  Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See
	  SPL_MPC8XXX_INIT_DDR for details.

config TPL_MMC
	bool "Support MMC"
	depends on MMC
	help
	  Enable support for MMC within TPL. See SPL_MMC for details.

config TPL_NAND_SUPPORT
	bool "Support NAND flash"
	help
	  Enable support for NAND in TPL. See SPL_NAND_SUPPORT for details.

config TPL_PCI
	bool "Support PCI drivers"
	help
	  Enable support for PCI in TPL. For platforms that need PCI to boot,
	  or must perform some init using PCI in SPL, this provides the
	  necessary driver support. This enables the drivers in drivers/pci
	  as part of a TPL build.

config TPL_PCH
	bool "Support PCH drivers"
	help
	  Enable support for PCH (Platform Controller Hub) devices in TPL.
	  These are used to set up GPIOs and the SPI peripheral early in
	  boot. This enables the drivers in drivers/pch as part of a TPL
	  build.

config TPL_RAM_SUPPORT
	bool "Support booting from RAM"
	help
	  Enable booting of an image in RAM. The image can be preloaded or
	  it can be loaded by TPL directly into RAM (e.g. using USB).

config TPL_RAM_DEVICE
	bool "Support booting from preloaded image in RAM"
	depends on TPL_RAM_SUPPORT
	help
	  Enable booting of an image already loaded in RAM. The image has to
	  be already in memory when TPL takes over, e.g. loaded by the boot
	  ROM.

config TPL_RTC
	bool "Support RTC drivers"
	help
	  Enable RTC (Real-time Clock) support in TPL. This includes support
	  for reading and setting the time. Some RTC devices also have some
	  non-volatile (battery-backed) memory which is accessible if
	  needed. This enables the drivers in drivers/rtc as part of an TPL
	  build.

config TPL_SERIAL
	bool "Support serial"
	select TPL_PRINTF
	select TPL_STRTO
	help
	  Enable support for serial in TPL. See SPL_SERIAL for
	  details.

config TPL_SPI_FLASH_SUPPORT
	bool "Support SPI flash drivers"
	help
	  Enable support for using SPI flash in TPL. See SPL_SPI_FLASH_SUPPORT
	  for details.

config TPL_SPI_FLASH_TINY
	bool "Enable low footprint TPL SPI Flash support"
	depends on TPL_SPI_FLASH_SUPPORT && !SPI_FLASH_BAR
	default y if SPI_FLASH
	help
	 Enable lightweight TPL SPI Flash support that supports just reading
	 data/images from flash. No support to write/erase flash. Enable
	 this if you have TPL size limitations and don't need full-fledged
	 SPI flash support.

config TPL_SPI_LOAD
	bool "Support loading from SPI flash"
	depends on TPL_SPI_FLASH_SUPPORT
	help
	  Enable support for loading next stage, U-Boot or otherwise, from
	  SPI NOR in U-Boot TPL.

config TPL_SPI
	bool "Support SPI drivers"
	help
	  Enable support for using SPI in TPL. See SPL_SPI for
	  details.

config TPL_DM_SPI
	bool "Support SPI DM drivers in TPL"
	help
	  Enable support for SPI DM drivers in TPL.

config TPL_DM_SPI_FLASH
	bool "Support SPI DM FLASH drivers in TPL"
	help
	  Enable support for SPI DM flash drivers in TPL.

config TPL_YMODEM_SUPPORT
	bool "Support loading using Ymodem"
	depends on TPL_SERIAL
	help
	  While loading from serial is slow it can be a useful backup when
	  there is no other option. The Ymodem protocol provides a reliable
	  means of transmitting U-Boot over a serial line for using in TPL,
	  with a checksum to ensure correctness.

endmenu
Commit	Line	Data
ba787bb4 TR	1	menu "TPL configuration options"
	2	depends on TPL
	3
	4	config TPL_SIZE_LIMIT
	5	hex "Maximum size of TPL image"
	6	default 0x0
	7	help
	8	Specifies the maximum length of the U-Boot TPL image.
	9	If this value is zero, it is ignored.
	10
	11	config TPL_BINMAN_SYMBOLS
d8830cf8	12	bool "Support binman symbols in TPL"
e09a8b9f	13	depends on TPL_FRAMEWORK && BINMAN
ba787bb4 TR	14	default y
ba787bb4 TR	15	help
d8830cf8 ANY	16	This enables use of symbols in TPL which refer to other entries in
	17	the same binman image as the TPL. These can be declared with the
	18	binman_sym_declare(type, entry, prop) macro and accessed by the
	19	binman_sym(type, entry, prop) macro defined in binman_sym.h.
ba787bb4	20
d8830cf8 ANY	21	See tools/binman/binman.rst for a detailed explanation.
	22
	23	config TPL_BINMAN_UBOOT_SYMBOLS
	24	bool "Declare binman symbols for U-Boot phases in TPL"
	25	depends on TPL_BINMAN_SYMBOLS
6516c9b3	26	default n if ARCH_IMX8M
d8830cf8 ANY	27	default y
	28	help
	29	This enables use of symbols in TPL which refer to U-Boot phases,
	30	enabling TPL to obtain the location and size of its next phase simply
	31	by calling spl_get_image_pos() and spl_get_image_size().
	32
	33	For this to work, you must have all U-Boot phases in the same binman
	34	image, so binman can update TPL with the locations of everything.
ba787bb4 TR	35
	36	config TPL_FRAMEWORK
	37	bool "Support TPL based upon the common SPL framework"
	38	default y if SPL_FRAMEWORK
	39	help
	40	Enable the SPL framework under common/spl/ for TPL builds.
	41	This framework supports MMC, NAND and YMODEM and other methods
	42	loading of U-Boot's SPL stage. If unsure, say Y.
	43
	44	config TPL_BANNER_PRINT
	45	bool "Enable output of the TPL banner 'U-Boot TPL ...'"
	46	default y
	47	help
	48	If this option is enabled, TPL will print the banner with version
	49	info. Disabling this option could be useful to reduce TPL boot time
	50	(e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud).
	51
	52	config TPL_HANDOFF
	53	bool "Pass hand-off information from TPL to SPL and U-Boot proper"
	54	depends on HANDOFF && TPL_BLOBLIST
	55	default y
	56	help
	57	This option enables TPL to write handoff information. This can be
	58	used to pass information like the size of SDRAM from TPL to U-Boot
	59	proper. The information is also available to SPL if it is useful
	60	there.
	61
	62	config TPL_BOARD_INIT
	63	bool "Call board-specific initialization in TPL"
	64	help
	65	If this option is enabled, U-Boot will call the function
	66	spl_board_init() from board_init_r(). This function should be
	67	provided by the board.
	68
	69	config TPL_BOOTCOUNT_LIMIT
	70	bool "Support bootcount in TPL"
	71	depends on TPL_ENV_SUPPORT
	72	help
	73	If this option is enabled, the TPL will support bootcount.
	74	For example, it may be useful to choose the device to boot.
	75
	76	config TPL_SYS_MALLOC_SIMPLE
	77	bool
	78	prompt "Only use malloc_simple functions in the TPL"
	79	help
	80	Say Y here to only use the *_simple malloc functions from
	81	malloc_simple.c, rather then using the versions from dlmalloc.c;
	82	this will make the TPL binary smaller at the cost of more heap
	83	usage as the *_simple malloc functions do not re-use free-ed mem.
	84
	85	config TPL_SEPARATE_BSS
	86	bool "BSS section is in a different memory region from text"
	87	default y if SPL_SEPARATE_BSS
	88	help
	89	Some platforms need a large BSS region in TPL and can provide this
	90	because RAM is already set up. In this case BSS can be moved to RAM.
	91	This option should then be enabled so that the correct device tree
	92	location is used. Normally we put the device tree at the end of BSS
	93	but with this option enabled, it goes at _image_binary_end.
	94
	95	config TPL_LDSCRIPT
	96	string "Linker script for the TPL stage"
	97	default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64
	98	default "arch/\$(ARCH)/cpu/u-boot-spl.lds"
99	help
100	The TPL stage will usually require a different linker-script
101	(as it runs from a different memory region) than the regular
102	U-Boot stage. Set this to the path of the linker-script to
103	be used for TPL.
104
105	May be left empty to trigger the Makefile infrastructure to
106	fall back to the linker-script used for the SPL stage.
107
108	config TPL_NEEDS_SEPARATE_STACK
109	bool "TPL needs a separate initial stack-pointer"
110	help
111	Enable, if the TPL stage should not inherit its initial
112	stack-pointer from the settings for the SPL stage.
113
114	config TPL_POWER
115	bool "Support power drivers"
116	help
117	Enable support for power control in TPL. This includes support
118	for PMICs (Power-management Integrated Circuits) and some of the
119	features provided by PMICs. In particular, voltage regulators can
120	be used to enable/disable power and vary its voltage. That can be
121	useful in TPL to turn on boot peripherals and adjust CPU voltage
122	so that the clock speed can be increased. This enables the drivers
123	in drivers/power, drivers/power/pmic and drivers/power/regulator
124	as part of an TPL build.
125
126	config TPL_TEXT_BASE
127	hex "Base address for the .text section of the TPL stage"
128	default 0
129	help
130	The base address for the .text section of the TPL stage.
131
132	config TPL_MAX_SIZE
133	hex "Maximum size (in bytes) for the TPL stage"
134	default 0x2e000 if ROCKCHIP_RK3399
ffb191e4	135	default 0x8000 if ROCKCHIP_RK3288 \|\| ROCKCHIP_RV1126
ba787bb4 TR	136	default 0x7000 if ROCKCHIP_RK322X \|\| ROCKCHIP_RK3328 \|\| ROCKCHIP_RK3368
	137	default 0x2800 if ROCKCHIP_PX30
	138	default 0x0
	139	help
	140	The maximum size (in bytes) of the TPL stage.
	141
	142	config TPL_STACK
	143	hex "Address of the initial stack-pointer for the TPL stage"
	144	depends on TPL_NEEDS_SEPARATE_STACK
	145	help
	146	The address of the initial stack-pointer for the TPL stage.
	147	Usually this will be the (aligned) top-of-stack.
	148
	149	config TPL_READ_ONLY
	150	bool
	151	depends on TPL_OF_PLATDATA
	152	select TPL_OF_PLATDATA_NO_BIND
	153	select TPL_OF_PLATDATA_RT
	154	help
	155	Some platforms (e.g. x86 Apollo Lake) load SPL into a read-only
	156	section of memory. This means that of-platdata must make a copy (in
	157	writeable memory) of anything it wants to modify, such as
	158	device-private data.
	159
	160	config TPL_BOOTROM_SUPPORT
	161	bool "Support returning to the BOOTROM (from TPL)"
	162	help
	163	Some platforms (e.g. the Rockchip RK3368) provide support in their
	164	ROM for loading the next boot-stage after performing basic setup
	165	from the TPL stage.
	166
	167	Enable this option, to return to the BOOTROM through the
	168	BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
	169	boot device list, if not implemented for a given board)
	170
	171	config TPL_CRC32
	172	bool "Support CRC32 in TPL"
	173	default y if TPL_ENV_SUPPORT \|\| TPL_BLOBLIST
	174	help
	175	Enable this to support CRC32 in uImages or FIT images within SPL.
	176	This is a 32-bit checksum value that can be used to verify images.
	177	For FIT images, this is the least secure type of checksum, suitable
	178	for detected accidental image corruption. For secure applications you
	179	should consider SHA1 or SHA256.
	180
	181	config TPL_DRIVERS_MISC
	182	bool "Support misc drivers in TPL"
	183	help
	184	Enable miscellaneous drivers in TPL. 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 TPL
	187	build, for those that support building in TPL (not all drivers do).
	188
	189	config TPL_ENV_SUPPORT
	190	bool "Support an environment"
	191	help
	192	Enable environment support in TPL. See SPL_ENV_SUPPORT for details.
	193
	194	config TPL_GPIO
	195	bool "Support GPIO in TPL"
	196	help
	197	Enable support for GPIOs (General-purpose Input/Output) in TPL.
	198	GPIOs allow U-Boot to read the state of an input line (high or
	199	low) and set the state of an output line. This can be used to
200	drive LEDs, control power to various system parts and read user
201	input. GPIOs can be useful in TPL to enable a 'sign-of-life' LED,
202	for example. Enable this option to build the drivers in
203	drivers/gpio as part of an TPL build.
204
205	config TPL_I2C
206	bool "Support I2C"
207	help
208	Enable support for the I2C bus in TPL. See SPL_I2C for
209	details.
210
211	config TPL_LIBCOMMON_SUPPORT
212	bool "Support common libraries"
213	help
214	Enable support for common U-Boot libraries within TPL. See
215	SPL_LIBCOMMON_SUPPORT for details.
216
217	config TPL_LIBGENERIC_SUPPORT
218	bool "Support generic libraries"
219	help
220	Enable support for generic U-Boot libraries within TPL. See
221	SPL_LIBGENERIC_SUPPORT for details.
222
223	config TPL_MPC8XXX_INIT_DDR
224	bool "Support MPC8XXX DDR init"
225	help
226	Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See
227	SPL_MPC8XXX_INIT_DDR for details.
228
229	config TPL_MMC
230	bool "Support MMC"
231	depends on MMC
232	help
233	Enable support for MMC within TPL. See SPL_MMC for details.
234
235	config TPL_NAND_SUPPORT
236	bool "Support NAND flash"
237	help
238	Enable support for NAND in TPL. See SPL_NAND_SUPPORT for details.
239
240	config TPL_PCI
241	bool "Support PCI drivers"
242	help
243	Enable support for PCI in TPL. For platforms that need PCI to boot,
244	or must perform some init using PCI in SPL, this provides the
245	necessary driver support. This enables the drivers in drivers/pci
246	as part of a TPL build.
247
248	config TPL_PCH
249	bool "Support PCH drivers"
250	help
251	Enable support for PCH (Platform Controller Hub) devices in TPL.
252	These are used to set up GPIOs and the SPI peripheral early in
253	boot. This enables the drivers in drivers/pch as part of a TPL
254	build.
255
256	config TPL_RAM_SUPPORT
257	bool "Support booting from RAM"
258	help
259	Enable booting of an image in RAM. The image can be preloaded or
260	it can be loaded by TPL directly into RAM (e.g. using USB).
261
262	config TPL_RAM_DEVICE
263	bool "Support booting from preloaded image in RAM"
264	depends on TPL_RAM_SUPPORT
265	help
266	Enable booting of an image already loaded in RAM. The image has to
267	be already in memory when TPL takes over, e.g. loaded by the boot
268	ROM.
269
270	config TPL_RTC
271	bool "Support RTC drivers"
272	help
273	Enable RTC (Real-time Clock) support in TPL. This includes support
274	for reading and setting the time. Some RTC devices also have some
275	non-volatile (battery-backed) memory which is accessible if
276	needed. This enables the drivers in drivers/rtc as part of an TPL
277	build.
278
279	config TPL_SERIAL
280	bool "Support serial"
281	select TPL_PRINTF
282	select TPL_STRTO
283	help
284	Enable support for serial in TPL. See SPL_SERIAL for
285	details.
286
287	config TPL_SPI_FLASH_SUPPORT
288	bool "Support SPI flash drivers"
289	help
290	Enable support for using SPI flash in TPL. See SPL_SPI_FLASH_SUPPORT
291	for details.
292
293	config TPL_SPI_FLASH_TINY
294	bool "Enable low footprint TPL SPI Flash support"
295	depends on TPL_SPI_FLASH_SUPPORT && !SPI_FLASH_BAR
296	default y if SPI_FLASH
297	help
298	Enable lightweight TPL SPI Flash support that supports just reading
299	data/images from flash. No support to write/erase flash. Enable
300	this if you have TPL size limitations and don't need full-fledged
301	SPI flash support.
302
303	config TPL_SPI_LOAD
304	bool "Support loading from SPI flash"
305	depends on TPL_SPI_FLASH_SUPPORT
306	help
307	Enable support for loading next stage, U-Boot or otherwise, from
308	SPI NOR in U-Boot TPL.
309
310	config TPL_SPI
311	bool "Support SPI drivers"
312	help
313	Enable support for using SPI in TPL. See SPL_SPI for
314	details.
315
316	config TPL_DM_SPI
317	bool "Support SPI DM drivers in TPL"
318	help
319	Enable support for SPI DM drivers in TPL.
320
321	config TPL_DM_SPI_FLASH
322	bool "Support SPI DM FLASH drivers in TPL"
323	help
324	Enable support for SPI DM flash drivers in TPL.
325
326	config TPL_YMODEM_SUPPORT
327	bool "Support loading using Ymodem"
328	depends on TPL_SERIAL
329	help
330	While loading from serial is slow it can be a useful backup when
331	there is no other option. The Ymodem protocol provides a reliable
332	means of transmitting U-Boot over a serial line for using in TPL,
333	with a checksum to ensure correctness.
334
335	endmenu