config FIT_IMAGE_POST_PROCESS
bool "Enable post-processing of FIT artifacts after loading by U-Boot"
depends on FIT
- depends on TI_SECURE_DEVICE || SOCFPGA_SECURE_VAB_AUTH
- default y if TI_SECURE_DEVICE
+ depends on SOCFPGA_SECURE_VAB_AUTH
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
depends on SPL_LOAD_FIT
select OF_LIBFDT_OVERLAY
help
- The device tree is loaded from the FIT image. Allow the SPL is to
+ The device tree is loaded from the FIT image. Allow the SPL to
also load device-tree overlays from the FIT image an apply them
over the device tree.
help
Utilities for parsing PXE file formats.
+config BOOT_DEFAULTS
+ bool # Common defaults for standard boot and distroboot
+ imply USE_BOOTCOMMAND
+ select CMD_ENV_EXISTS
+ select CMD_EXT2
+ select CMD_EXT4
+ select CMD_FAT
+ select CMD_FS_GENERIC
+ select CMD_PART if PARTITIONS
+ select CMD_DHCP if CMD_NET
+ select CMD_PING if CMD_NET
+ select CMD_PXE if CMD_NET
+ select SUPPORT_RAW_INITRD
+ select ENV_VARS_UBOOT_CONFIG
+ select CMD_BOOTI if ARM64
+ select CMD_BOOTZ if ARM && !ARM64
+ imply CMD_MII if NET
+ imply USB_STORAGE
+ imply EFI_PARTITION
+ imply ISO_PARTITION
+ help
+ These are not required but are commonly needed to support a good
+ selection of booting methods. Enable this to improve the capability
+ of U-Boot to boot various images. Currently much functionality is
+ tied to enabling the command that exercises it.
+
config BOOTSTD
bool "Standard boot support"
default y
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
-
config SPL_BOOTSTD
bool "Standard boot support in SPL"
depends on SPL && SPL_DM && SPL_OF_CONTROL && SPL_BLK
if BOOTSTD
+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
+
config BOOTSTD_DEFAULTS
bool "Select some common defaults for standard boot"
depends on BOOTSTD
imply USE_BOOTCOMMAND
- # Bring in some defaults which are generally needed. Boards can drop
- # these as needed to save code space. Bootstd does not generally require
- # the commands themselves to be enabled, but this is how some of the
- # functionality is controlled at present
- imply CMD_EXT2
- imply CMD_EXT4
- imply CMD_FAT
- imply CMD_FS_GENERIC
- imply CMD_PART
- imply CMD_DHCP if NET
- imply CMD_MII if NET
- imply CMD_PING if NET
- imply CMD_PXE if NET
- imply USB_STORAGE
- imply SUPPORT_RAW_INITRD
- imply ENV_VARS_UBOOT_CONFIG
- imply EFI_PARTITION
- imply ISO_PARTITION
+ select BOOT_DEFAULTS
+ select BOOTMETH_DISTRO
help
These are not required but are commonly needed to support a good
selection of booting methods. Enable this to improve the capability
EFI bootmgr, since they take full control over which bootdevs are
selected to boot.
-config BOOTMETH_DISTRO
- bool "Bootdev support for distro boot"
+config BOOTMETH_CROS
+ bool "Bootdev support for Chromium OS"
+ depends on X86 || ARM || SANDBOX
+ default y if !ARM
+ select EFI_PARTITION
+ select PARTITION_TYPE_GUID
+ select PARTITION_UUIDS
+ help
+ Enables support for booting Chromium OS using bootdevs. This uses the
+ kernel A slot and obtains the kernel command line from the parameters
+ provided there.
+
+ Note that only x86 devices are supported at present.
+
+config BOOTMETH_EXTLINUX
+ bool "Bootdev support for extlinux boot"
select PXE_UTILS
default y
help
- Enables support for distro boot using bootdevs. This makes the
+ Enables support for extlinux boot using bootdevs. This makes the
bootdevs look for a 'extlinux/extlinux.conf' on each filesystem
they scan.
+ The specification for this filed is here:
+
+ https://uapi-group.org/specifications/specs/boot_loader_specification/
+
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"
+config BOOTMETH_EXTLINUX_PXE
+ bool "Bootdev support for extlinux boot over network"
depends on CMD_PXE && CMD_NET && DM_ETH
default y
help
- Enables support for distro boot using bootdevs. This makes the
+ Enables support for extlinux boot using bootdevs. This makes the
bootdevs look for a 'extlinux/extlinux.conf' on the tftp server.
+ The specification for this file is here:
+
+ https://uapi-group.org/specifications/specs/boot_loader_specification/
+
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
+ depends on EFI_LOADER
default y
help
Enables support for EFI boot using bootdevs. This makes the
supports selection of various firmware components, seleciton of an OS to
boot as well as updating these using fwupd.
+config BOOTMETH_DISTRO
+ bool # Options needed to boot any distro
+ select BOOTMETH_SCRIPT # E.g. Armbian uses scripts
+ select BOOTMETH_EXTLINUX # E.g. Debian uses these
+ select BOOTMETH_EXTLINUX_PXE if CMD_PXE && CMD_NET && DM_ETH
+ select BOOTMETH_EFILOADER if EFI_LOADER # E.g. Ubuntu uses this
+
config SPL_BOOTMETH_VBE
bool "Bootdev support for Verified Boot for Embedded (SPL)"
depends on SPL && FIT
config BOOTMETH_SCRIPT
bool "Bootdev support for U-Boot scripts"
default y if BOOTSTD_FULL
+ select HUSH_PARSER
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
depends on CMD_BOOTM || CMD_BOOTI || CMD_BOOTZ
depends on !(NIOS2 || SANDBOX || SH || XTENSA)
def_bool y
+ select LMB
help
Enable initrd_high functionality. If defined then the initrd_high
feature is enabled and the boot* ramdisk subcommand is enabled.
endmenu # Boot images
+config DISTRO_DEFAULTS
+ bool "Select defaults suitable for booting general purpose Linux distributions"
+ select BOOT_DEFAULTS
+ select AUTO_COMPLETE
+ select CMDLINE_EDITING
+ select CMD_SYSBOOT
+ select HUSH_PARSER
+ select SYS_LONGHELP
+ help
+ Select this to enable various options and commands which are suitable
+ for building u-boot for booting general purpose Linux distributions.
+
menu "Boot timing"
config BOOTSTAGE
config BOOTSTAGE_STASH_ADDR
hex "Address to stash boot timing information"
- default 0
+ default 0x0
help
Provide an address which will not be overwritten by the OS when it
starts, so that it can read this information when ready.
This enables the boot menu, controlled by environment variables
defined by the board. The menu starts after running the 'preboot'
environmnent variable (if enabled) and before handling the boot delay.
- See README.bootmenu for more details.
+ See doc/usage/cmd/bootmenu.rst for more details.
config BOOTMENU_DISABLE_UBOOT_CONSOLE
bool "Disallow bootmenu to enter the U-Boot console"
config BOOTCOMMAND
string "bootcmd value"
depends on USE_BOOTCOMMAND && !USE_DEFAULT_ENV_FILE
- default "bootflow scan -lb" if BOOTSTD_BOOTCOMMAND && CMD_BOOTFLOW_FULL
- default "bootflow scan" if BOOTSTD_BOOTCOMMAND && !CMD_BOOTFLOW_FULL
+ default "bootflow scan -lb" if BOOTSTD_DEFAULTS && CMD_BOOTFLOW_FULL
+ default "bootflow scan" if BOOTSTD_DEFAULTS && !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
If no initramfs was provided by previous bootloader, no env variables
will be created.
+menu "Configuration editor"
+
+config CEDIT
+ bool "Configuration editor"
+ depends on BOOTSTD
+ help
+ Provides a way to deal with board configuration and present it to
+ the user for adjustment.
+
+ This is intended to provide both graphical and text-based user
+ interfaces, but only graphical is support at present.
+
+endmenu # Configuration editor
+
endmenu # Booting
projects / J-u-boot.git / blobdiff