[U-Boot] [PROBLEM] can't cross compile omap4 configuration

[amine mahmoudi]

Hello,
I have an adequate Linaro cross-compiler "arm-linux-gnueabi" which is already properly installed on my .bashrc but everytime I cross compile U-boot
(specifically u-boot-2015.04-rc4 ) it doesn't compile, I do the following commands :

make distclean 
make omap4_panda_defconfig
make 

and i get :

 make
scripts/kconfig/conf --silentoldconfig Kconfig
  CHK     include/config.h
  GEN     include/autoconf.mk
cc1: error: bad value (armv5) for -march= switch
make[2]: *** [include/autoconf.mk] Error 1
make[1]: *** [silentoldconfig] Error 1
make: *** No rule to make target `include/config/auto.conf', needed by `include/config/uboot.release'.  Stop.



what shoud i do ? I am really lost !! 
Thank you in advance,
A.M