查看“Buildroot Bootloaders”的源代码

=编译bootloader=
Bootloaders  --->

  [ ] afboot-stm32
  [ ] Barebox
  [ ] mxs-bootlets
  [ ] s500-bootloader
  [ ] ts4800-mbrboot
  [*] U-Boot
  [ ]   CRC image for Altera SoC FPGA (mkpimage)
  [ ]   Environment image  ----
  [ ]   Generate a U-Boot boot script
  ()    Device Tree Source file paths
  [ ] X-loader
==u-boot编译==
  [*] U-Boot
        Build system (Kconfig)  --->
        U-Boot Version (Custom Git repository)  --->
  (https://git.coding.net/codebug8/mini437x_uboot.git) URL of custom repository
  (master) Custom repository version
  ()    Custom U-Boot patches
        U-Boot configuration (Using an in-tree board defconfig file)  --->
  (mini437x) Board defconfig
  ()    Additional configuration fragment files
  [*]   U-Boot needs dtc
  [ ]   U-Boot needs pylibfdt
  [ ]   U-Boot needs OpenSSL
        U-Boot binary format  --->
  [ ]   produce a .ift signed image (OMAP)
  [*]   Install U-Boot SPL binary image
  (MLO)   U-Boot SPL/TPL binary image name(s)
=参考注释=
Bootloaders：硬件启动程序，选择为 U-boot
  Build system：u-boot系统选择为Kconfig
      legacy：若是选择2015.04之前的u-boot 选择此项
      Kconfig：2015.04之后的 u-boot 选择此项，勾选此项　　
  U-boot Version：U-boot版本，默认为 2017.01，选择为Custom version
  U-Boot version：填写为2017.11
  Custom U-boot patches：U-boot补丁，不添加
  U-Boot configuration：U-boot配置，暂时还没有U-BOOT，所以选择为：Using an in-tree board defconfig file
  Board defconfig：板子的配置，选择与架构一样的板子的默认文件，mini2440。后期再修改
  U-boot needs dtc：是否需要设备树，默认，后期调试
  U-boot needs OpenSSL：是否需要 OpenSSL，默认，后期调试修改
  U-boot binary format：二进制文件，选择 .bin文件
  produce a .ift signed image：默认
  Install U-boot SPL binary image：默认
  Environment image：默认