config FIT_IMAGE_POST_PROCESS
bool "Enable post-processing of FIT artifacts after loading by U-Boot"
depends on TI_SECURE_DEVICE || SOCFPGA_SECURE_VAB_AUTH
+ default y if TI_SECURE_DEVICE
help
Allows doing any sort of manipulation to blobs after they got extracted
from FIT images like stripping off headers or modifying the size of the
config SPL_FIT_IMAGE_POST_PROCESS
bool "Enable post-processing of FIT artifacts after loading by the SPL"
depends on SPL_LOAD_FIT
+ default y if TI_SECURE_DEVICE
help
Allows doing any sort of manipulation to blobs after they got extracted
from the U-Boot FIT image like stripping off headers or modifying the
endif # FIT
+config BOOTSTD
+ bool "Standard boot support"
+ default y
+ depends on DM && OF_CONTROL && BLK
+ help
+ U-Boot supports a standard way of locating something to boot,
+ typically an Operating System such as Linux, provided by a distro such
+ as Arch Linux or Debian. Enable this to support iterating through
+ available bootdevs and using bootmeths to find bootflows suitable for
+ booting.
+
+ Standard boot is not a standard way of booting, just a framework
+ within U-Boot for supporting all the different ways that exist.
+
+ Terminology:
+
+ - bootdev - a device which can hold a distro (e.g. MMC)
+ - bootmeth - a method to scan a bootdev to find bootflows (owned by
+ U-Boot)
+ - bootflow - a description of how to boot (owned by the distro)
+
+config BOOTSTD_FULL
+ bool "Enhanced features for standard boot"
+ default y if SANDBOX
+ help
+ This enables various useful features for standard boot, which are not
+ essential for operation:
+
+ - bootdev, bootmeth commands
+ - extra features in the bootflow command
+ - support for selecting the ordering of bootmeths ("bootmeth order")
+ - support for selecting the ordering of bootdevs using the devicetree
+ as well as the "boot_targets" environment variable
+
+if BOOTSTD
+
+config BOOTSTD_BOOTCOMMAND
+ bool "Use bootstd to boot"
+ default y if !DISTRO_DEFAULTS
+ help
+ Enable this to select a default boot-command suitable for booting
+ with standard boot. This can be overridden by the board if needed,
+ but the default command should be enough for most boards which use
+ standard boot.
+
+ For now this is only selected if distro boot is NOT used, since
+ standard boot does not support all of the features of distro boot
+ yet.
+
+config BOOTMETH_DISTRO
+ bool "Bootdev support for distro boot"
+ depends on CMD_PXE
+ default y
+ help
+ Enables support for distro boot using bootdevs. This makes the
+ bootdevs look for a 'extlinux/extlinux.conf' on each filesystem
+ they scan.
+
+ This provides a way to try out standard boot on an existing boot flow.
+
+config BOOTMETH_DISTRO_PXE
+ bool "Bootdev support for distro boot over network"
+ depends on CMD_PXE && CMD_NET && DM_ETH
+ default y
+ help
+ Enables support for distro boot using bootdevs. This makes the
+ bootdevs look for a 'extlinux/extlinux.conf' on the tftp server.
+
+ This provides a way to try out standard boot on an existing boot flow.
+
+config BOOTMETH_EFILOADER
+ bool "Bootdev support for EFI boot"
+ depends on CMD_BOOTEFI
+ default y
+ help
+ Enables support for EFI boot using bootdevs. This makes the
+ bootdevs look for a 'boot<arch>.efi' on each filesystem
+ they scan. The resulting file is booted after enabling U-Boot's
+ EFI loader support.
+
+ The <arch> depends on the architecture of the board:
+
+ aa64 - aarch64 (ARM 64-bit)
+ arm - ARM 32-bit
+ ia32 - x86 32-bit
+ x64 - x86 64-bit
+ riscv32 - RISC-V 32-bit
+ riscv64 - RISC-V 64-bit
+
+ This provides a way to try out standard boot on an existing boot flow.
+
+config BOOTMETH_SANDBOX
+ def_bool y
+ depends on SANDBOX
+ help
+ This is a sandbox bootmeth driver used for testing. It always returns
+ -ENOTSUPP when attempting to boot.
+
+config BOOTMETH_SCRIPT
+ bool "Bootdev support for U-Boot scripts"
+ default y if BOOTSTD_FULL
+ help
+ Enables support for booting a distro via a U-Boot script. This makes
+ the bootdevs look for a 'boot/boot.scr' file which can be used to
+ boot the distro.
+
+ This provides a way to try out standard boot on an existing boot flow.
+ It is not enabled by default to save space.
+
+endif
+
config LEGACY_IMAGE_FORMAT
bool "Enable support for the legacy image format"
- default y if !FIT_SIGNATURE
+ default y if !FIT_SIGNATURE && !TI_SECURE_DEVICE
help
This option enables the legacy image format. It is enabled by
default for backward compatibility, unless FIT_SIGNATURE is
incorrect when used with device tree as this option does not
exist / should not be used.
+config SYS_EXTRA_OPTIONS
+ string "Extra Options (DEPRECATED)"
+ help
+ The old configuration infrastructure (= mkconfig + boards.cfg)
+ provided the extra options field. If you have something like
+ "HAS_BAR,BAZ=64", the optional options
+ #define CONFIG_HAS
+ #define CONFIG_BAZ 64
+ will be defined in include/config.h.
+ This option was prepared for the smooth migration from the old
+ configuration to Kconfig. Since this option will be removed sometime,
+ new boards should not use this option.
+
config HAVE_SYS_TEXT_BASE
bool
depends on !NIOS2 && !XTENSA
environmnent variable (if enabled) and before handling the boot delay.
See README.bootmenu for more details.
+config BOOTMENU_DISABLE_UBOOT_CONSOLE
+ bool "Disallow bootmenu to enter the U-Boot console"
+ depends on AUTOBOOT_MENU_SHOW
+ help
+ If this option is enabled, user can not enter the U-Boot console from
+ bootmenu. It increases the system security.
+
config BOOT_RETRY
bool "Boot retry feature"
help
config BOOTCOMMAND
string "bootcmd value"
depends on USE_BOOTCOMMAND && !USE_DEFAULT_ENV_FILE
- default "run distro_bootcmd" if DISTRO_DEFAULTS
+ default "bootflow scan -lb" if BOOTSTD_BOOTCOMMAND && CMD_BOOTFLOW_FULL
+ default "bootflow scan" if BOOTSTD_BOOTCOMMAND && !CMD_BOOTFLOW_FULL
+ default "run distro_bootcmd" if !BOOTSTD_BOOTCOMMAND && DISTRO_DEFAULTS
help
This is the string of commands that will be used as bootcmd and if
AUTOBOOT is set, automatically run.
help
This option is used to set the default fdt file to boot OS.
+config SAVE_PREV_BL_FDT_ADDR
+ depends on ARM
+ bool "Saves fdt address, passed by the previous bootloader, to env var"
+ help
+ When u-boot is used as a chain-loaded bootloader (replacing OS kernel),
+ enable this option to save fdt address, passed by the
+ previous bootloader for future use.
+ Address is saved to `prevbl_fdt_addr` environment variable.
+
+ If no fdt was provided by previous bootloader, no env variables
+ will be created.
+
+config SAVE_PREV_BL_INITRAMFS_START_ADDR
+ depends on ARM
+ bool "Saves initramfs address, passed by the previous bootloader, to env var"
+ help
+ When u-boot is used as a chain-loaded bootloader(replacing OS kernel),
+ enable this option to save initramfs address, passed by the
+ previous bootloader for future use.
+ Address is saved to `prevbl_initrd_start_addr` environment variable.
+
+ If no initramfs was provided by previous bootloader, no env variables
+ will be created.
+
endmenu # Booting
projects / J-u-boot.git / blobdiff