linuxOS_D21X/package/uboot/Config.in

menu "U-Boot"

config BR2_TARGET_UBOOT
	bool
	default y
	help
	  Build "Das U-Boot" Boot Monitor

	  https://www.denx.de/wiki/U-Boot

if BR2_TARGET_UBOOT
config BR2_TARGET_UBOOT_VERSION
	string "U-Boot Version"
	default "2021.10"

config BR2_TARGET_UBOOT_USE_DEFCONFIG
	bool # "Using an in-tree board defconfig file"
	default y

config BR2_TARGET_UBOOT_BOARD_DEFCONFIG
	string "defconfig"
	depends on BR2_TARGET_UBOOT_USE_DEFCONFIG
	help
	  Name of the board for which U-Boot should be built, without
	  the _defconfig suffix.

menu "Advance setting"

config BR2_TARGET_UBOOT_PATCH
	string # "Custom U-Boot patches"
	help
	  A space-separated list of patches to apply to U-Boot.
	  Each patch can be described as an URL, a local file path,
	  or a directory. In the case of a directory, all files
	  matching *.patch in the directory will be applied.

	  Most users may leave this empty

config BR2_TARGET_UBOOT_NEEDS_DTC
	bool # "U-Boot needs dtc"
	default n
	select BR2_PACKAGE_HOST_DTC
	help
	  Select this option if your U-Boot board configuration
	  requires the Device Tree compiler to be available.

config BR2_TARGET_UBOOT_NEEDS_PYTHON
	bool

choice
	bool "U-Boot needs host Python"

config BR2_TARGET_UBOOT_NEEDS_PYTHON_NONE
	bool "no"
	depends on !BR2_TARGET_UBOOT_NEEDS_PYTHON
	help
	  Select this option if U-Boot does not need any
	  host python to build.

config BR2_TARGET_UBOOT_NEEDS_PYTHON2
	bool "python 2.x"
	help
	  Select this option if U-Boot needs a host Python 2.x
	  interpreter. This is the case for some U-Boot
	  configurations, prior to U-Boot 2020.01.

config BR2_TARGET_UBOOT_NEEDS_PYTHON3
	bool "python 3.x"
	help
	  Select this option if U-Boot needs a host Python 3.x
	  interpreter. This is the case for some U-Boot
	  configurations, after U-Boot 2020.01.

endchoice

config BR2_TARGET_UBOOT_NEEDS_PYLIBFDT
	bool # "U-Boot needs pylibfdt"
	select BR2_TARGET_UBOOT_NEEDS_PYTHON
	help
	  Select this option if your U-Boot board configuration
	  requires the Python libfdt library to be available.

config BR2_TARGET_UBOOT_NEEDS_PYELFTOOLS
	bool # "U-Boot needs pyelftools"
	select BR2_TARGET_UBOOT_NEEDS_PYTHON
	help
	  Select this option if your U-Boot board configuration
	  requires the Python pyelftools library to be available.
	  This is used by some rockchip SOCs for elf parsing.
	  For example: rk3399 soc boards.

config BR2_TARGET_UBOOT_NEEDS_OPENSSL
	bool # "U-Boot needs OpenSSL"
	default y
	help
	  Select this option if your U-Boot board configuration
	  requires OpenSSL to be available on the host. This is
	  typically the case when the board configuration has
	  CONFIG_FIT_SIGNATURE enabled.

config BR2_TARGET_UBOOT_NEEDS_LZOP
	bool # "U-Boot needs lzop"
	help
	  Select this option if your U-Boot board configuration
	  requires lzop to be available on the host. This is typically
	  the case when the board configuration has CONFIG_SPL_LZO
	  enabled.

config BR2_TARGET_UBOOT_NEEDS_OPENSBI
	bool # "U-Boot needs OpenSBI"
	default y if BR2_PACKAGE_OPENSBI
	help
	  Some RISC-V platforms (such as SiFive HiFive Unleashed)
	  encapsulate the OpenSBI firmware image inside U-Boot.
	  This option makes sure OpenSBI gets built prior to U-Boot,
	  and that the OpenSBI variable pointing to OpenSBI binary,
	  is passed during the Buildroot build.

menu "U-Boot binary format"

config BR2_TARGET_UBOOT_FORMAT_BIN
	bool "u-boot.bin"
	default y

config BR2_TARGET_UBOOT_FORMAT_DTB
	bool "u-boot.dtb"

config BR2_TARGET_UBOOT_FORMAT_DTB_BIN
	bool "u-boot-dtb.bin"

config BR2_TARGET_UBOOT_FORMAT_NODTB_BIN
	bool "u-boot-nodtb.bin"

config BR2_TARGET_UBOOT_FORMAT_NAND_BIN
	bool "u-boot-nand.bin"

config BR2_TARGET_UBOOT_FORMAT_ELF
	bool "u-boot.elf"

config BR2_TARGET_UBOOT_FORMAT_IMG
	bool "u-boot.img"

config BR2_TARGET_UBOOT_FORMAT_DTB_IMG
	bool "u-boot-dtb.img"

config BR2_TARGET_UBOOT_FORMAT_ITB
	bool "u-boot.itb"

config BR2_TARGET_UBOOT_FORMAT_CUSTOM
	bool "Custom (specify below)"
	help
	  On some platforms, the standard U-Boot binary is not called
	  u-boot.bin, but u-boot<something>.bin. If this is your case,
	  you should select this option and specify the correct name(s)
	  in BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME.

config BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME
	string "U-Boot binary format: custom names"
	depends on BR2_TARGET_UBOOT_FORMAT_CUSTOM
	help
	  In case the U-Boot binary for the target platform is not among
	  the default names, one or more custom names can be listed
	  here.
	  Use space to separate multiple names.
	  Example:
	  u-boot_magic.bin

endmenu

config BR2_TARGET_UBOOT_SPL
	bool "Install U-Boot SPL binary image"
	depends on !BR2_TARGET_XLOADER
	help
	  Install the U-Boot SPL binary image to the images
	  directory.
	  SPL is a first stage bootloader loaded into internal
	  memory in charge of enabling and configuring the
	  external memory (DDR), and load the u-boot program
	  into DDR.

config BR2_TARGET_UBOOT_SPL_NAME
	string "U-Boot SPL/TPL binary image name(s)"
	default "spl/u-boot-spl.bin"
	depends on BR2_TARGET_UBOOT_SPL
	help
	  A space-separated list of SPL/TPL binaries, generated during
	  u-boot build. For most platform SPL name is spl/u-boot-spl.bin
	  and TPL name is tpl/u-boot-tpl.bin but not always. SPL name is
	  MLO on OMAP and SPL on i.MX6 for example.

config BR2_TARGET_UBOOT_CUSTOM_DTS_PATH
	string # "Device Tree Source file paths"
	help
	  Space-separated list of paths to device tree source files
	  that will be copied to arch/ARCH/dts/ before starting the
	  build.

	  To use this device tree source file, the U-Boot configuration
	  file must refer to it.

config BR2_TARGET_UBOOT_CUSTOM_MAKEOPTS
	string "Custom make options"
	help
	  List of custom make options passed at build time. Can be
	  used for example to pass a DEVICE_TREE= value.
endmenu
endif # BR2_TARGET_UBOOT
endmenu