uboot build error

asadpt

I have downloaded android source code for orange pi win board from orange pi official website. I was able to build the android  image and GUI on the screen. I want to change the uboot delay. Currently it is one second. but while booting u-boot, it shows september 2015 (builded time). So I manualy tried to build the u-boot by entering the folder. but  while building u-boot, I am facing some error..


fatal: Not a git repository (or any of the parent directories): .git
./tools/add_hash_uboot.sh -f u-boot.bin -m uboot
build_uboot
System.map shows a binary size of 746660
  but u-boot.bin shows 746596
Makefile:823: recipe for target 'binary_size_check' failed
make: *** [binary_size_check] Error 1
make: *** Waiting for unfinished jobs....
'u-boot.bin' -> 'u-boot-sun50iw1p1.bin'
'u-boot-sun50iw1p1.bin' -> '/home/iqroot/new/android_orang/lichee/brandy/u-boot-2014.07/../../tools/pack/chips/sun50iw1p1/bin/u-boot-sun50iw1p1.bin'