[Hi3716C-fastboot] Build commands for fastboot

Step 1. Switch to the fastboot source code directory.

$ cd bootable/bootloader/fastboot3.0/

Step 2. Obtain the configuration file corresponding to the board.

$ cp ./lowlevel_reg_info/hi3716cdmoverb_hi3716cv100_ddr3_1gbyte_8bitx4_4layers.reg ../.reg

Step 3. Compile the fastboot

$ make ARCH=arm CROSS_COMPILE=arm-hisiv200-linux- godbox_config

$ make ARCH=arm CROSS_COMPILE=arm-hisiv200-linux- 

Delete the fastboot compilation result

$ make ARCH=arm CROSS_COMPILE=arm-hisiv200-linux- distclean

Step 4. Burn into SPI Flash

fastboot# tftp 0x81000000 fastboot-burn.bin

fastboot# sf probe 0

fastboot# sf erase 0 0x00070000

fastboot# sf write 0x81000000 0 0x00070000