[U-Boot-Users] Is there any way to just compile files relative to my board?

[Min Chen]

Hello guys,
  To compile a u-boot, follow the steps below:
  make clean
  make <your_board_name>_config
  make all

  But I'm suspicious of using 'make all' will compile other boards useless to me.
  Is there any way to just compile files relative to my board?
  Thank you.

  Best regards,