[Friendly ARM Mini2440] Build uboot

While i am building uboot in ubuntu12.04 i am facing a problem i.e., "Make:
/opt/build/openwrt/gcc/arm-openwrt-linux-gcc" Commend not found.

Plz help me how to resolve this problem.

1. you need a PATH to your cross-compiler
2. Are you building for the mini2440 or openwrt?