menu "Boot images"
config ANDROID_BOOT_IMAGE
- bool "Enable support for Android Boot Images"
+ bool "Android Boot Images"
default y if FASTBOOT
help
This enables support for booting images which use the Android
image format header.
-config FIT
- bool "Support Flattened Image Tree"
+config TIMESTAMP
+ bool "Show image date and time when displaying image information"
+ default y if CMD_DATE
+ help
+ When CONFIG_TIMESTAMP is selected, the timestamp (date and time) of
+ an image is printed by image commands like bootm or iminfo. This
+ is shown as 'Timestamp: xxx' and 'Created: xxx'. If this option is
+ enabled, then U-Boot requires FITs to have a timestamp. If a FIT is
+ 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
select MD5
select SHA1
multiple configurations, verification through hashing and also
verified boot (secure boot using RSA).
-config TIMESTAMP
- bool "Show image date and time when displaying image information"
- default y if CMD_DATE
- help
- When CONFIG_TIMESTAMP is selected, the timestamp (date and time) of
- an image is printed by image commands like bootm or iminfo. This
- is shown as 'Timestamp: xxx' and 'Created: xxx'. If this option is
- enabled, then U-Boot requires FITs to have a timestamp. If a FIT is
- loaded that does not, the message 'Wrong FIT format: no timestamp'
- is shown.
+if FIT
config FIT_EXTERNAL_OFFSET
hex "FIT external data offset"
- depends on FIT
default 0x0
help
This specifies a data offset in fit image.
config FIT_FULL_CHECK
bool "Do a full check of the FIT before using it"
- depends on FIT
default y
help
Enable this do a full check of the FIT to make sure it is valid. This
config FIT_SIGNATURE
bool "Enable signature verification of FIT uImages"
- depends on DM && FIT
+ depends on DM
select HASH
imply RSA
imply RSA_VERIFY
config FIT_CIPHER
bool "Enable ciphering data in a FIT uImages"
- depends on DM && FIT
+ depends on DM
select AES
help
Enable the feature of data ciphering/unciphering in the tool mkimage
config FIT_VERBOSE
bool "Show verbose messages when FIT images fail"
- depends on FIT
help
Generally a system will have valid FIT images so debug messages
are a waste of code space. If you are debugging your images then
config FIT_BEST_MATCH
bool "Select the best match for the kernel device tree"
- depends on FIT
help
When no configuration is explicitly selected, default to the
one whose fdt's compatibility field best matches that of
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
config FIT_PRINT
bool "Support FIT printing"
- depends on FIT
default y
help
Support printing the content of the fitImage in a verbose manner.
config SPL_FIT
bool "Support Flattened Image Tree within SPL"
- depends on SPL && FIT
+ depends on SPL
select SPL_HASH
select SPL_OF_LIBFDT
config SPL_LOAD_FIT
bool "Enable SPL loading U-Boot as a FIT (basic fitImage features)"
- depends on SPL && FIT
+ depends on SPL
select SPL_FIT
help
Normally with the SPL framework a legacy image is generated as part
config SPL_LOAD_FIT_ADDRESS
hex "load address of fit image"
- depends on SPL_LOAD_FIT || SPL_RAM_SUPPORT || TPL_RAM_SUPPORT
+ depends on SPL_LOAD_FIT
default 0x0
help
Specify the load address of the fit image that will be loaded
config SPL_LOAD_FIT_FULL
bool "Enable SPL loading U-Boot as a FIT (full fitImage features)"
- depends on FIT
select SPL_FIT
help
Normally with the SPL framework a legacy image is generated as part
endif # VPL
+endif # FIT
+
config PXE_UTILS
bool
select MENU
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
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"
+menuconfig BOOTSTD
+ bool "Standard boot"
default y
depends on DM && OF_CONTROL && BLK
help
U-Boot)
- bootflow - a description of how to boot (owned by the distro)
+if BOOTSTD
+
config SPL_BOOTSTD
bool "Standard boot support in SPL"
depends on SPL && SPL_DM && SPL_OF_CONTROL && SPL_BLK
boot. It is enabled by default since the main purpose of VPL is to
handle the firmware part of VBE.
-if BOOTSTD
-
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
EFI bootmgr, since they take full control over which bootdevs are
selected to 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
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
This provides a way to try out standard boot on an existing boot flow.
It is not enabled by default to save space.
-endif
+endif # BOOTSTD
config LEGACY_IMAGE_FORMAT
bool "Enable support for the legacy image format"
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 OF_BOARD_SETUP
- bool "Set up board-specific details in device tree before boot"
- depends on OF_LIBFDT
- help
- This causes U-Boot to call ft_board_setup() before booting into
- the Operating System. This function can set up various
- board-specific information in the device tree for use by the OS.
- The device tree is then passed to the OS.
-
-config OF_SYSTEM_SETUP
- bool "Set up system-specific details in device tree before boot"
- depends on OF_LIBFDT
- help
- This causes U-Boot to call ft_system_setup() before booting into
- the Operating System. This function can set up various
- system-specific information in the device tree for use by the OS.
- The device tree is then passed to the OS.
-
-config OF_STDOUT_VIA_ALIAS
- bool "Update the device-tree stdout alias from U-Boot"
- depends on OF_LIBFDT
- help
- This uses U-Boot's serial alias from the aliases node to update
- the device tree passed to the OS. The "linux,stdout-path" property
- in the chosen node is set to point to the correct serial node.
- This option currently references CONFIG_CONS_INDEX, which is
- incorrect when used with device tree as this option does not
- exist / should not be used.
-
-config HAVE_TEXT_BASE
- bool
- depends on !NIOS2 && !XTENSA
- depends on !EFI_APP
- default y
-
-config TEXT_BASE
- depends on HAVE_TEXT_BASE
- default 0x0 if POSITION_INDEPENDENT
- default 0x80800000 if ARCH_OMAP2PLUS || ARCH_K3
- default 0x81700000 if MACH_SUNIV
- default 0x2a000000 if MACH_SUN9I
- default 0x4a000000 if SUNXI_MINIMUM_DRAM_MB >= 256
- default 0x42e00000 if SUNXI_MINIMUM_DRAM_MB >= 64
- hex "Text Base"
- help
- The address in memory that U-Boot will be running from, initially.
-
-config HAVE_SYS_MONITOR_BASE
- bool
- depends on ARC || MIPS || M68K || NIOS2 || PPC || XTENSA || X86 \
- || ENV_IS_IN_FLASH || MTD_NOR_FLASH
- depends on !EFI_APP
- default y
-
-config SYS_MONITOR_BASE
- depends on HAVE_SYS_MONITOR_BASE
- hex "Physical start address of boot monitor code"
- default TEXT_BASE
- help
- The physical start address of boot monitor code (which is the same as
- CONFIG_TEXT_BASE when linking) and the same as CFG_SYS_FLASH_BASE
- when booting from flash.
-
-config SPL_SYS_MONITOR_BASE
- depends on MPC85xx && SPL && HAVE_SYS_MONITOR_BASE
- hex "Physical start address of SPL monitor code"
- default SPL_TEXT_BASE
-
-config TPL_SYS_MONITOR_BASE
- depends on MPC85xx && TPL && HAVE_SYS_MONITOR_BASE
- hex "Physical start address of TPL monitor code"
-
-config DYNAMIC_SYS_CLK_FREQ
- bool "Determine CPU clock frequency at run-time"
- help
- Implement a get_board_sys_clk function that will determine the CPU
- clock frequency at run time, rather than define it statically.
-
-config SYS_CLK_FREQ
- depends on !DYNAMIC_SYS_CLK_FREQ
- int "CPU clock frequency"
- default 125000000 if ARCH_LS1012A
- default 100000000 if ARCH_P2020 || ARCH_T1024 || ARCH_T1042 || \
- ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3
- default 66666666 if ARCH_P1010 || ARCH_P1020 || ARCH_T4240
- default 66660000 if ARCH_T2080
- default 33333333 if RCAR_GEN3
- default 24000000 if ARCH_EXYNOS
- default 20000000 if RCAR_GEN2
- default 0
- help
- A static value for the CPU frequency. Note that if not required
- for a given SoC, this can be left at 0.
-
-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.
-
config CHROMEOS
bool "Support booting Chrome OS"
help
endmenu # Boot images
config DISTRO_DEFAULTS
- bool "Select defaults suitable for booting general purpose Linux distributions"
+ bool "(deprecated) Script-based booting of Linux distributions"
+ select CMDLINE
select BOOT_DEFAULTS
select AUTO_COMPLETE
select CMDLINE_EDITING
select HUSH_PARSER
select SYS_LONGHELP
help
+ Note: These scripts have been replaced by Standard Boot. Do not use
+ them on new boards. See 'Migrating from distro_boot' at
+ doc/develop/bootstd.rst
+
Select this to enable various options and commands which are suitable
for building u-boot for booting general purpose Linux distributions.
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.
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
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"
endmenu
+if OF_LIBFDT
+
+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
+ This causes U-Boot to call ft_board_setup() before booting into
+ the Operating System. This function can set up various
+ board-specific information in the device tree for use by the OS.
+ The device tree is then passed to the OS.
+
+config OF_SYSTEM_SETUP
+ bool "Set up system-specific details in device tree before boot"
+ help
+ This causes U-Boot to call ft_system_setup() before booting into
+ the Operating System. This function can set up various
+ system-specific information in the device tree for use by the OS.
+ The device tree is then passed to the OS.
+
+config OF_STDOUT_VIA_ALIAS
+ bool "Update the device-tree stdout alias from U-Boot"
+ help
+ This uses U-Boot's serial alias from the aliases node to update
+ the device tree passed to the OS. The "linux,stdout-path" property
+ in the chosen node is set to point to the correct serial node.
+ This option currently references CONFIG_CONS_INDEX, which is
+ incorrect when used with device tree as this option does not
+ exist / should not be used.
+
+config FDT_FIXUP_PARTITIONS
+ bool "Overwrite MTD partitions in DTS through defined in 'mtdparts'"
+ help
+ Allow overwriting defined partitions in the device tree blob
+ using partition info defined in the 'mtdparts' environment
+ variable.
+
+config FDT_SIMPLEFB
+ bool "FDT tools for simplefb support"
+ help
+ Enable the fdt tools to manage the simple fb nodes in device tree.
+ These functions can be used by board to indicate to the OS
+ 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_BOOTARGS
bool "Enable boot arguments"
help
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
If no initramfs was provided by previous bootloader, no env variables
will be created.
+menu "Configuration editor"
+
+config CEDIT
+ bool "Configuration editor"
+ depends on EXPO
+ 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
git.openpandora.org / pandora-u-boot.git / blobdiff