Kconfig - OpenGrok cross reference for /openbmc/u-boot/common/spl/Kconfig

17 	  If you want to build SPL as well as the normal image, say Y.
22 	default y
25 	  supports MMC, NAND and YMODEM and other methods loading of U-Boot
29 	bool "Pass hand-off information from SPL to U-Boot proper"
32 	  It is useful to be able to pass information from SPL to U-Boot
33 	  proper to preserve state that is known in SPL and is needed in U-Boot.
34 	  Enable this to locate the handoff information in U-Boot proper, early
35 	  in boot. It is available in gd->handoff. The state state is set up
44 	  This option can minilize the SPL size to compatible with AST2600-A0
48 	bool "Pass hand-off information from SPL to U-Boot proper"
50 	default y
53 	  used to pass information like the size of SDRAM from SPL to U-Boot
59 	default "arch/$(ARCH)/cpu/u-boot-spl.lds"
61 	  The SPL stage will usually require a different linker-script
63 	  U-Boot stage.	 Set this to the path of the linker-script to
67 	bool "Call board-specific initialization in SPL"
69 	  If this option is enabled, U-Boot will call the function
77 	  ROM for loading the next boot-stage after performing basic setup
81 	  BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
90 	  use proper U-Boot for normal boot flow and hence needs those
95 	default n if (ARCH_MX6 && (SPL_MMC_SUPPORT || SPL_SATA_SUPPORT))
96 	default y if !TI_SECURE_DEVICE
104 	default y if !TI_SECURE_DEVICE
118 	  are correct, without further integrity checks.
127 	  usage as the *_simple malloc functions do not re-use free-ed mem.
136 	  usage as the *_simple malloc functions do not re-use free-ed mem.
145 	  location for the SPL stack. U-Boot SPL switches to this after
151 	default 0x82000000 if ARCH_OMAP2PLUS
159 	default 0x100000
176 	bool "Enable output of the SPL banner 'U-Boot SPL ...'"
177 	default y
184 	bool "Enable output of the TPL banner 'U-Boot TPL ...'"
185 	default y
192 	bool "Display a board-specific message in SPL"
194 	  If this option is enabled, U-Boot will call the function
196 	  banner ("U-Boot SPL ..."). This function should be provided by
201 	default y
214 	default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER || \
220 	  Use sector number for specifying U-Boot location on MMC/SD in
224 	hex "Address on the MMC to load U-Boot from"
226 	default 0x50 if ARCH_SUNXI
227 	default 0x75 if ARCH_DAVINCI
228 	default 0x8a if ARCH_MX6 || ARCH_MX7
229 	default 0x100 if ARCH_UNIPHIER
230 	default 0x140 if ARCH_MVEBU
231 	default 0x200 if ARCH_SOCFPGA || ARCH_AT91
232 	default 0x300 if ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || OMAP44XX || \
234 	default 0x4000 if ARCH_ROCKCHIP
236 	  Address on the MMC to load U-Boot from, when the MMC is being used
242 	  Use a partition for loading U-Boot when using MMC/SD in raw mode.
245 	hex "Partition to use to load U-Boot from"
247 	default 1
249 	  Partition on the MMC to load U-Boot from when the MMC is being
256 	  Use partition type for specifying U-Boot partition on MMC/SD in
257 	  raw mode. U-Boot will be loaded from the first partition of this
261 	hex "Partition Type on the MMC to load U-Boot from"
264 	  Partition Type on the MMC to load U-Boot from, when the MMC is being
269 	default y if SPL_LEGACY_IMAGE_SUPPORT
272 	  This is a 32-bit checksum value that can be used to verify images.
282 	  checksum is a 128-bit hash value used to check that the image
284 	  secure as it is possible (with a brute-force attack) to adjust the
295 	  checksum is a 160-bit (20-byte) hash value used to check that the
298 	  due to the expanding computing power available to brute-force
307 	  checksum is a 256-bit (32-byte) hash value used to check that the
317 	  checksum is a 384-bit (48-byte) hash value used to check that the
328 	  checksum is a 512-bit (64-byte) hash value used to check that the
334 	default y if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN50I_H6
335 	default y if ARCH_IMX8M
341 	  first image to be treated as having a U-Boot style calling
353 	  may improve boot performance. Enable this option to build the
354 	  drivers in drivers/cpu as part of an SPL build.
361 	  this option to build the drivers in drivers/crypto as part of an
362 	  SPL build.
371 	  this option to build system-specific drivers for hash acceleration
372 	  as part of an SPL build.
381 	  this option to build system-specific drivers for hash acceleration
382 	  as part of an SPL build.
387 	  Enable DMA (direct-memory-access) drivers in SPL. These drivers
388 	  can be used to handle memory-to-peripheral data transfer without
389 	  the CPU moving the data. Enable this option to build the drivers
390 	  in drivers/dma as part of an SPL build.
397 	  option to build the drivers in drivers/misc as part of an SPL
398 	  build, for those that support building in SPL (not all drivers do).
403 	  Enable environment support in SPL. The U-Boot environment provides
405 	  control many aspects of U-Boot's operation. Normally this is not
408 	  on EXT2 and FAT, where SPL boots directly into Linux without
409 	  starting U-Boot first. Enabling this option will make env_get()
417 	  Enable save environment support in SPL after setenv. By default
424 	  to default mode using setenv and save the environment.
431 	  drivers in SPL. This permits SPL to load U-Boot over an Ethernet
432 	  link rather than from an on-board peripheral. Environment support
440 	  U-Boot (or Linux in Falcon mode) to be loaded from an EXT
449 	  permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT
463 	  Enable support for FPGAs in SPL. Field-programmable Gate Arrays
464 	  provide software-configurable hardware which is typically used to
474 	  Enable support for GPIOs (General-purpose Input/Output) in SPL.
475 	  GPIOs allow U-Boot to read the state of an input line (high or
478 	  input. GPIOs can be useful in SPL to enable a 'sign-of-life' LED,
479 	  for example. Enable this option to build the drivers in
480 	  drivers/gpio as part of an SPL build.
485 	  Enable support for the I2C (Inter-Integrated Circuit) bus in SPL.
492 	  Enable this option to build the drivers in drivers/i2c as part of
493 	  an SPL build.
498 	  Enable support for common U-Boot libraries within SPL. These
499 	  libraries include common code to deal with U-Boot images,
501 	  boards. Enable this option to build the code in common/ as part of
502 	  an SPL build.
509 	  of a misnomer as it includes non-spinning media such as flash (as
514 	  devices, typically with an EXT2 or FAT filesystem in each. This
516 	  U-Boot to also be used in SPL. It brings in the code in disk/.
521 	  Enable support for generic U-Boot libraries within SPL. These
524 	  boards. Enable this option to build the code in lib/ as part of an
525 	  SPL build.
532 	  this option to build the drivers in drivers/mailbox as part of
533 	  SPL build.
542 	  be used within SPL. MMC can be used with or without disk partition
544 	  this option to build the drivers in drivers/mmc as part of an SPL
545 	  build.
550 	default n
558 	  Enable support for DDR-SDRAM (double-data-rate synchronous dynamic
559 	  random-access memory) on the MPC8XXX family within SPL. This
560 	  allows DRAM to be set up before loading U-Boot into that DRAM,
568 	  SPI flash. This allows SPL to load U-Boot from supported MTD
569 	  devices. See SPL_NAND_SUPPORT and SPL_ONENAND_SUPPORT for how
576 	  driver used by some boards. Enable this option to build
577 	  the drivers in drivers/usb/musb-new as part of an SPL build. The
584 	  can be used to allow SPL to load U-Boot from supported devices.
586 	  build.
591 	  Enable support for network devices (such as Ethernet) in SPL.
592 	  This permits SPL to load U-Boot over a network link rather than
593 	  from an on-board peripheral. Environment support is required since
605 	  SPL or U-Boot itself makes the request
611 	  This is specific to the ARM926EJ-S CPU. It disables the standard
612 	  start.S start-up code, presumably so that a replacement can be
619 	  Enable support for loading U-Boot from memory-mapped NOR (Negative
621 	  a memory-mapped device makes it very easy to access. Loading from
628 	  Enable support for execute in place of U-Boot or kernel image. There
638 	  load U-Boot from supported devices. This enables the drivers in
639 	  drivers/mtd/onenand as part of an SPL build.
644 	default n
661 	default "tpl/u-boot-with-tpl.bin" if TPL
662 	default "u-boot.bin"
664 	  Payload for SPL boot. For backward compatibility, default to
665 	  u-boot.bin, i.e. RAW image without any header. In case of
666 	  TPL, tpl/u-boot-with-tpl.bin. For new boards, suggest to
667 	  use u-boot.img.
675 	  as part of an SPL build.
680 	  Enable support for PCH (Platform Controller Hub) devices in SPL.
683 	  build.
688 	  Enable support for POST (Power-on Self Test) in SPL. POST is a
692 	  as part of an SPL build.
699 	  That can be useful in SPL to handle IP reset in driver, as in U-Boot,
701 	  This enables the drivers in drivers/reset as part of an SPL build.
707 	  for PMICs (Power-management Integrated Circuits) and some of the
713 	  as part of an SPL build.
722 	  the drivers in drivers/power/domain as part of a SPL build.
726 	default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ
734 	default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ
749 	  Enable RTC (Real-time Clock) support in SPL. This includes support
750 	  for reading and setting the time. Some RTC devices also have some
751 	  non-volatile (battery-backed) memory which is accessible if
753 	  build.
759 	  use of SATA devices such as hard drives and flash drivers for
760 	  loading U-Boot. SATA is used in higher-end embedded systems and
779 	  Enable support for using SPI flash in SPL, and loading U-Boot from
782 	  but fast bidirectional 4-wire bus (clock, chip select and two data
784 	  SPL build. This normally requires SPL_SPI_SUPPORT.
791 	default y if SPI_FLASH
809 	  Enable support for loading next stage, U-Boot or otherwise, from
810 	  SPI NOR in U-Boot SPL.
818 	  to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for
825 	bool "Driver support for thermal devices"
827 	  Enable support for temperature-sensing devices. Some SoCs have on-chip
829 	  automatic power-off when the temperature gets too high or low. Other
830 	  devices may be discrete but connected on a suitable bus.
836 	  Enable access to USB (Universal Serial Bus) host devices so that
837 	  SPL can load U-Boot from a connected USB peripheral, such as a USB
841 	  drivers/usb/host as part of an SPL build.
847 	  Enable support for USB devices in SPL. This allows use of USB
848 	  devices such as hard drives and flash drivers for loading U-Boot.
849 	  The actual drivers are enabled separately using the normal U-Boot
865 	  drivers in SPL. This permits SPL to load U-Boot over a
866 	  USB-connected Ethernet link (such as a USB Ethernet dongle) rather
879 	  the SPL built with dfu. The user can load binaries (u-boot/kernel) to
880 	  selected device partition from host-pc using dfu-utils.
881 	  This feature is useful to flash the binaries to factory or bare-metal
893 	 (u-boot/kernel) to the selected device partition using
894 	 DFU and execute the u-boot/kernel from RAM.
912 	  enables the drivers in drivers/watchdog as part of an SPL build.
920 	  means of transmitting U-Boot over a serial line for using in SPL,
929 	  More detail at: https://github.com/ARM-software/arm-trusted-firmware
937 	  not U-Boot aware and have an insufficiently robust parameter
940 	  If this option is enabled, the spl_atf os-type handler will
947 	default y if AM33XX
953 	bool "Support OP-TEE Trusted OS"
956 	  OP-TEE is an open source Trusted OS  which is loaded by SPL.
957 	  More detail at: https://github.com/OP-TEE/optee_os
964 	  If you want to build TPL as well as the normal image and SPL, say Y.
969 	bool "Pass hand-off information from TPL to SPL and U-Boot proper"
971 	default y
974 	  used to pass information like the size of SDRAM from TPL to U-Boot
979 	bool "Call board-specific initialization in TPL"
981 	  If this option is enabled, U-Boot will call the function
988 	default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64
989 	default "arch/$(ARCH)/cpu/u-boot-spl.lds"
991 	  The TPL stage will usually require a different linker-script
993 	  U-Boot stage.  Set this to the path of the linker-script to
997 	  fall back to the linker-script used for the SPL stage.
1000         bool "TPL needs a separate text-base"
1001 	default n
1004 	  Enable, if the TPL stage should not inherit its text-base
1009         bool "TPL needs a separate initial stack-pointer"
1010 	default n
1014 	  stack-pointer from the settings for the SPL stage.
1024 	default 0
1030         hex "Address of the initial stack-pointer for the TPL stage"
1033 	  The address of the initial stack-pointer for the TPL stage.
1034 	  Usually this will be the (aligned) top-of-stack.
1040 	  ROM for loading the next boot-stage after performing basic setup
1044 	  BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
1052 	  option to build the drivers in drivers/misc as part of an TPL
1053 	  build, for those that support building in TPL (not all drivers do).
1063 	  Enable support for GPIOs (General-purpose Input/Output) in TPL.
1064 	  GPIOs allow U-Boot to read the state of an input line (high or
1067 	  input. GPIOs can be useful in TPL to enable a 'sign-of-life' LED,
1068 	  for example. Enable this option to build the drivers in
1069 	  drivers/gpio as part of an TPL build.
1080 	  Enable support for common U-Boot libraries within TPL. See
1086 	  Enable support for generic U-Boot libraries within TPL. See
1092 	  Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See
1112 	  as part of a TPL build.
1117 	  Enable support for PCH (Platform Controller Hub) devices in TPL.
1120 	  build.
1139 	  Enable RTC (Real-time Clock) support in TPL. This includes support
1140 	  for reading and setting the time. Some RTC devices also have some
1141 	  non-volatile (battery-backed) memory which is accessible if
1143 	  build.
1163 	  Enable support for loading next stage, U-Boot or otherwise, from
1164 	  SPI NOR in U-Boot TPL.
1178 	  means of transmitting U-Boot over a serial line for using in TPL,