/$$$$$$$$ /$$    /$$ /$$$$$$$$
  |\_____/|              | $$_____/| $$   | $$| $$_____/
  | e   e |              | $$      | $$   | $$| $$      
  |   V   |              | $$$$$   |  $$ / $$/| $$$$$   
  |       |              | $$__/    \  $$ $$/ | $$__/   
  |       |              | $$        \  $$$/  | $$      
--ooo---ooo--------------| $$$$$$$$   \  $/   | $$$$$$$$-----------------------
                         |________/    \_/    |________/

Build

Run $ BSP=$BSP make, where $BSP is board support package for desired target. Valid values are:

rpi3ap (Raspberry Pi 3 Model A+)
rpi3b  (Raspberry Pi 3 Model B)