loaded that does not, the message 'Wrong FIT format: no timestamp'
is shown.
+config BUTTON_CMD
+ bool "Support for running a command if a button is held during boot"
+ depends on CMDLINE
+ depends on BUTTON
+ help
+ For many embedded devices it's useful to enter a special flashing mode
+ such as fastboot mode when a button is held during boot. This option
+ allows arbitrary commands to be assigned to specific buttons. These will
+ be run after "preboot" if the button is held. Configuration is done via
+ the environment variables "button_cmd_N_name" and "button_cmd_N" where n is
+ the button number (starting from 0). e.g:
+
+ "button_cmd_0_name=vol_down"
+ "button_cmd_0=fastboot usb 0"
+
menuconfig FIT
bool "Flattened Image Tree (FIT)"
select HASH
help
Utilities for parsing PXE file formats.
-config BOOT_DEFAULTS
- bool # Common defaults for standard boot and distroboot
+config BOOT_DEFAULTS_FEATURES
+ bool
+ select SUPPORT_RAW_INITRD
+ select ENV_VARS_UBOOT_CONFIG
+ imply USB_STORAGE
+ imply EFI_PARTITION
+ imply ISO_PARTITION
+
+config BOOT_DEFAULTS_CMDS
+ bool
imply USE_BOOTCOMMAND
select CMD_ENV_EXISTS
select CMD_EXT2
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
+
+config BOOT_DEFAULTS
+ bool # Common defaults for standard boot and distroboot
+ select BOOT_DEFAULTS_FEATURES
+ select BOOT_DEFAULTS_CMDS if CMDLINE
help
These are not required but are commonly needed to support a good
selection of booting methods. Enable this to improve the capability
config BOOTSTD_FULL
bool "Enhanced features for standard boot"
default y if SANDBOX
+ imply BOOTSTD_DEFAULTS
help
This enables various useful features for standard boot, which are not
essential for operation:
config BOOTSTD_DEFAULTS
bool "Select some common defaults for standard boot"
depends on BOOTSTD
- imply USE_BOOTCOMMAND
select BOOT_DEFAULTS
select BOOTMETH_DISTRO
help
standard boot does not support all of the features of distro boot
yet.
+config BOOTSTD_PROG
+ bool "Use programmatic boot"
+ depends on !CMDLINE
+ default y
+ help
+ Enable this to provide a board_run_command() function which can boot
+ a systen without using commands. If the boot fails, then U-Boot will
+ panic.
+
+ Note: This currently has many limitations and is not a useful booting
+ solution. Future work will eventually make this a viable option.
+
config BOOTMETH_GLOBAL
bool
help
config BOOTMETH_EFILOADER
bool "Bootdev support for EFI boot"
- depends on EFI_LOADER
+ depends on EFI_BINARY_EXEC
default y
help
Enables support for EFI boot using bootdevs. This makes the
config BOOTMETH_DISTRO
bool # Options needed to boot any distro
- select BOOTMETH_SCRIPT # E.g. Armbian uses scripts
+ select BOOTMETH_SCRIPT if CMDLINE # 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
+ select BOOTMETH_EFILOADER if EFI_BINARY_EXEC # E.g. Ubuntu uses this
config SPL_BOOTMETH_VBE
bool "Bootdev support for Verified Boot for Embedded (SPL)"
config BOOTMETH_SCRIPT
bool "Bootdev support for U-Boot scripts"
default y if BOOTSTD_FULL
+ depends on CMDLINE
select HUSH_PARSER
help
Enables support for booting a distro via a U-Boot script. This makes
loaded. If a board needs the legacy image format support in this
case, enable it here.
+config MEASURED_BOOT
+ bool "Measure boot images and configuration when booting without EFI"
+ depends on HASH && TPM_V2
+ help
+ This option enables measurement of the boot process when booting
+ without UEFI . Measurement involves creating cryptographic hashes
+ of the binary images that are booting and storing them in the TPM.
+ In addition, a log of these hashes is stored in memory for the OS
+ to verify the booted images and configuration. Enable this if the
+ OS has configured some memory area for the event log and you intend
+ to use some attestation tools on your system.
+
+if MEASURED_BOOT
+ config MEASURE_DEVICETREE
+ bool "Measure the devicetree image"
+ default y if MEASURED_BOOT
+ help
+ On some platforms, the devicetree is not static as it may contain
+ random MAC addresses or other such data that changes each boot.
+ Therefore, it should not be measured into the TPM. In that case,
+ disable the measurement here.
+
+ config MEASURE_IGNORE_LOG
+ bool "Ignore the existing event log"
+ default n
+ help
+ On platforms that use an event log memory region that persists
+ through system resets and are the first stage bootloader, then
+ this option should be enabled to ignore any existing data in the
+ event log memory region.
+endif # MEASURED_BOOT
+
+config SYS_BOOTM_LEN
+ hex "Maximum size of a decompresed OS image"
+ depends on CMD_BOOTM || CMD_BOOTI || CMD_BOOTZ || \
+ LEGACY_IMAGE_FORMAT || SPL_LEGACY_IMAGE_FORMAT
+ default 0x4000000 if PPC || ARM64
+ default 0x1000000 if X86 || ARCH_MX6 || ARCH_MX7
+ default 0x800000
+ help
+ This is the maximum size of the buffer that is used to decompress the OS
+ image in to if attempting to boot a compressed image.
+
config SUPPORT_RAW_INITRD
bool "Enable raw initrd images"
help
address of the initrd must be augmented by it's size, in the following
format: "<initrd address>:<initrd size>".
-config ARCH_FIXUP_FDT_MEMORY
- bool "Enable arch_fixup_memory_banks() call"
- default y if OF_LIBFDT
- help
- Enable FDT memory map syncup before OS boot. This feature can be
- used for booting OS with different memory setup where the part of
- the memory location should be used for different purpose.
-
config CHROMEOS
bool "Support booting Chrome OS"
help
config DISTRO_DEFAULTS
bool "(deprecated) Script-based booting of Linux distributions"
+ select CMDLINE
select BOOT_DEFAULTS
select AUTO_COMPLETE
select CMDLINE_EDITING
config AUTOBOOT
bool "Autoboot"
+ depends on CMDLINE
default y
help
This enables the autoboot. See doc/README.autoboot for detail.
+if AUTOBOOT
+
config BOOTDELAY
int "delay in seconds before automatically booting"
default 2
- depends on AUTOBOOT
help
Delay before automatically running bootcmd;
set to 0 to autoboot with no delay, but you can stop it by key input.
U-Boot automatic booting process and bring the device
to the U-Boot prompt for user input.
+if AUTOBOOT_KEYED
+
config AUTOBOOT_FLUSH_STDIN
bool "Enable flushing stdin before starting to read the password"
- depends on AUTOBOOT_KEYED && !SANDBOX
+ depends on !SANDBOX
help
When this option is enabled stdin buffer will be flushed before
starting to read the password.
config AUTOBOOT_PROMPT
string "Autoboot stop prompt"
- depends on AUTOBOOT_KEYED
default "Autoboot in %d seconds\\n"
help
This string is displayed before the boot delay selected by
config AUTOBOOT_ENCRYPTION
bool "Enable encryption in autoboot stopping"
- depends on AUTOBOOT_KEYED
help
This option allows a string to be entered into U-Boot to stop the
autoboot.
config AUTOBOOT_DELAY_STR
string "Delay autobooting via specific input key / string"
- depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
+ depends on !AUTOBOOT_ENCRYPTION
help
This option delays the automatic boot feature by issuing
a specific input key or string. If CONFIG_AUTOBOOT_DELAY_STR
config AUTOBOOT_STOP_STR
string "Stop autobooting via specific input key / string"
- depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
+ depends on !AUTOBOOT_ENCRYPTION
help
This option enables stopping (aborting) of the automatic
boot feature only by issuing a specific input key or
config AUTOBOOT_KEYED_CTRLC
bool "Enable Ctrl-C autoboot interruption"
- depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
+ depends on !AUTOBOOT_ENCRYPTION
help
This option allows for the boot sequence to be interrupted
by ctrl-c, in addition to the "bootdelaykey" and "bootstopkey".
config AUTOBOOT_NEVER_TIMEOUT
bool "Make the password entry never time-out"
- depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION && CRYPT_PW
+ depends on AUTOBOOT_ENCRYPTION && CRYPT_PW
help
This option removes the timeout from the password entry
when the user first presses the <Enter> key before entering
config AUTOBOOT_STOP_STR_ENABLE
bool "Enable fixed string to stop autobooting"
- depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION
+ depends on AUTOBOOT_ENCRYPTION
help
This option enables the feature to add a fixed stop
string that is defined at compile time.
includes a ":", the portion prior to the ":" will be treated
as a salt value.
+endif # AUTOBOOT_KEYED
+
+if !AUTOBOOT_KEYED
+
config AUTOBOOT_USE_MENUKEY
bool "Allow a specify key to run a menu from the environment"
- depends on !AUTOBOOT_KEYED
help
If a specific key is pressed to stop autoboot, then the commands in
the environment variable 'menucmd' are executed before boot starts.
For example, 33 means "!" in ASCII, so pressing ! at boot would take
this action.
+endif
+
+endif # AUTOBOOT
+
config AUTOBOOT_MENU_SHOW
bool "Show a menu on boot"
depends on CMD_BOOTMENU
menu "Devicetree fixup"
+config OF_ENV_SETUP
+ bool "Run a command from environment to set up device tree before boot"
+ depends on CMD_FDT
+ help
+ This causes U-Boot to run a command from the environment variable
+ fdt_fixup before booting into the operating system, which can use the
+ fdt command to modify the device tree. The device tree is then passed
+ to the OS.
+
config OF_BOARD_SETUP
bool "Set up board-specific details in device tree before boot"
help
the presence of the simple frame buffer with associated reserved
memory
+config ARCH_FIXUP_FDT_MEMORY
+ bool "Enable arch_fixup_memory_banks() call"
+ default y
+ help
+ Enable FDT memory map syncup before OS boot. This feature can be
+ used for booting OS with different memory setup where the part of
+ the memory location should be used for different purpose.
+
endmenu
endif # OF_LIBFDT
config USE_BOOTCOMMAND
bool "Enable a default value for bootcmd"
+ depends on CMDLINE
help
Provide a default value for the bootcmd entry in the environment. If
autoboot is enabled this is what will be run automatically. Enable
config USE_PREBOOT
bool "Enable preboot"
+ depends on CMDLINE
help
When this option is enabled, the existence of the environment
variable "preboot" will be checked immediately before starting the
config CEDIT
bool "Configuration editor"
- depends on BOOTSTD
+ depends on EXPO
help
Provides a way to deal with board configuration and present it to
the user for adjustment.
git.openpandora.org / pandora-u-boot.git / blobdiff