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## SECTION=bootloader
menuconfig U_BOOT
select BOOTLOADER
prompt "U-Boot "
bool
if U_BOOT
config U_BOOT_VERSION
string
default "2019.01"
prompt "U-Boot version"
help
Enter the U-Boot version you want to build. Usually something like
"2019.01".
config U_BOOT_MD5
string
prompt "U-Boot source md5"
choice
prompt "config system"
default U_BOOT_CONFIGSYSTEM_LEGACY
config U_BOOT_CONFIGSYSTEM_KCONFIG
prompt "Kconfig"
bool
help
U-Boot from version 2014.10 uses Kconfig for configuring a target.
Use this if you want to configure U-Boot inside the BSP, e.g.
with menuconfig.
NOTE: if you just want to use a defconfig, you can still use the
legacy config system by using the name of a defconfig file from
the "configs" folder as config target.
config U_BOOT_CONFIGSYSTEM_LEGACY
prompt "legacy"
bool
help
Select this if you use an old U-Boot prior 2014.10 or want to use
a defconfig as config target.
endchoice
if U_BOOT_CONFIGSYSTEM_KCONFIG
config U_BOOT_CONFIGFILE_KCONFIG
prompt "config file"
string
default "u-boot.config"
help
This entry specifies the .config file used to compile U-Boot.
endif
if U_BOOT_CONFIGSYSTEM_LEGACY
config U_BOOT_CONFIG
prompt "U-Boot config target"
string
help
The U-Boot make config target. Usually something like
"yourbox_config". Before U-Boot 2014.10 that was something from
the file "boards.cfg". With version 2014.10 U-Boot switched to
Kconfig based build and configuration, and from there you could
use some defconfig name as config target, e.g.
"yourbox_defconfig", where that name is a file from the folder
"configs".
endif
config U_BOOT_CUSTOM_MAKE_OPTS
prompt "Custom make options"
string
help
List of custom make options passed at build time. Can be
used for example to pass a DEVICE_TREE= value.
choice
prompt "Generate environment image"
default U_BOOT_ENV_IMAGE_NONE
help
U-Boot from version 2018.03 supports out-of-tree environment
image generation.
config U_BOOT_ENV_IMAGE_NONE
prompt "none"
bool
help
Don't generate an U-Boot environment image.
config U_BOOT_ENV_IMAGE_DEFAULT
prompt "default"
bool
help
Use U-Boot's mkenvimage to compile a default U-Boot environment
image for use in e.g. device manufacturing or development.
config U_BOOT_ENV_IMAGE_CUSTOM
prompt "custom"
bool
help
Use U-Boot's mkenvimage to compile a custom U-Boot environment
image based on the text file in U_BOOT_ENV_IMAGE_CUSTOM_SOURCE
for use in e.g. device manufacturing or development.
endchoice
config U_BOOT_ENV_IMAGE_CUSTOM_SOURCE
prompt "Custom environment source"
string
default "custom_env.config"
depends on U_BOOT_ENV_IMAGE_CUSTOM
help
Text file in platform config directory describing the custom
environment.
The file should have lines in the form var=value, one per line.
Blank lines and lines starting with a # are ignored.
if !U_BOOT_ENV_IMAGE_NONE
config U_BOOT_ENV_IMAGE_SIZE
prompt "Environment image size"
hex
default 0x2000
help
Enter the U-Boot environment size in hexadecimal for generation
of image. A wrong size will typically cause crc error when used.
Must match size defined in target config and "/etc/fw_env.config".
config U_BOOT_ENV_IMAGE_REDUNDANT
prompt "Environment image with redundant copy"
bool
help
Use to generate a redundant environment in the image.
Must match target config and "/etc/fw_env.config".
endif
config U_BOOT_BOOT_SCRIPT
prompt "Compile U-Boot boot script"
bool
help
Use U-Boot's mkimage to compile a U-Boot boot script and install it
into the rootfs
if U_BOOT_BOOT_SCRIPT
config U_BOOT_BOOT_SCRIPT_ROOTFS_PATH
string
default "/boot/boot.scr.uimg"
prompt "Installation path"
help
Target rootfs path where the U-Boot script should be located
endif
comment "target install"
config U_BOOT_INSTALL_SREC
prompt "install u-boot.srec"
bool
help
Installing the U-Boot srec hexfile into platform image directory.
config U_BOOT_INSTALL_ELF
prompt "install u-boot.elf"
bool
help
Installing the U-Boot ELF binary into platform image directory.
config U_BOOT_INSTALL_EFI_APPLICATION
prompt "install u-boot-app.efi"
bool
help
Installing the U-Boot EFI application into platform image directory.
config U_BOOT_INSTALL_EFI_PAYLOAD
prompt "install u-boot-payload.efi"
bool
help
Installing the U-Boot EFI payload into platform image directory.
config U_BOOT_INSTALL_SPL
prompt "install SPL"
bool
help
Installing the U-Boot SPL (Secondary Program Loader) binary into
platform image directory.
config U_BOOT_INSTALL_MLO
prompt "install MLO"
bool
depends on !X_LOAD
help
Installing the U-Boot SPL ("MLO") binary needed for OMAP CPUs into platform
image directory.
if U_BOOT_INSTALL_MLO || U_BOOT_INSTALL_SPL
config U_BOOT_INSTALL_U_BOOT_IMG
prompt "install u-boot.img"
bool
help
Installing the U-Boot image with header ("u-boot.img") which is executed
by U-Boot SPL into platform image directory.
endif
config U_BOOT_INSTALL_U_BOOT_IMX
prompt "install u-boot.imx"
bool
help
Installing the U-Boot image with imx header (u-boot.imx) into platform
image directory. Say yes if you are building for freescale i.MX SOCs
and are not using SPL.
config U_BOOT_INSTALL_U_BOOT_DTB_IMX
prompt "install u-boot-dtb.imx"
bool
help
Installing the U-Boot image with device tree support and imx header (u-boot-dtb.imx)
into platform image directory. Say yes if you are building for freescale i.MX SOCs
and are not using SPL.
config U_BOOT_INSTALL_U_BOOT_DTB
prompt "install u-boot-dtb.bin"
bool
help
Installing the U-Boot binary concatenated with the device tree
into platform image directory.
config U_BOOT_INSTALL_U_BOOT_WITH_SPL_PBL
prompt "install u-boot-with-spl-pbl.bin"
bool
help
Installing the U-Boot binary which contains as well the SPL and PBL.
Say yes if you are building for Layerscape SoCs
config U_BOOT_INSTALL_U_BOOT_STM32
prompt "install u-boot.stm32"
bool
help
Installing the U-Boot image with stm32 header (u-boot.stm32) into
platform image directory. Say yes if you are building for STM32MP1
SOCs.
endif
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