微處理器 - RDA RDA8810PL (Orange Pi 2G-IoT) - Build U-Boot

參考資訊：
https://github.com/aib/opi2g-utils/issues/2
https://www.aib42.net/article/hacking-orangepi-2g

pdl1.bin、pdl2.bin

$ cd
$ sudo apt-get install gcc-arm*
$ git clone https://github.com/aib/u-boot-RDA8810.git
$ cd u-boot-RDA8810
$ git checkout nand-boot
$ make CROSS_COMPILE=arm-none-eabi- clean rda8810_config
$ make CROSS_COMPILE=arm-none-eabi- pdl=1 PDL

u-boot.rda

$ make CROSS_COMPILE=arm-none-eabi- clean rda8810_config
$ make CROSS_COMPILE=arm-none-eabi-