[U-Boot] Question about big-endian for u-boot

Hi，Dear Sir:

I want to port u-boot to ARM4510 with big-endian, but I failed.

The error shows like this:

/root/usr/local/arm/3.3.2/bin/arm-linux-ld: common/libcommon.a(crc16.o)： compile with little-endian but the target is big-endian.

I have modified CFLAGS and AFLAGS by adding option “-mbig-endian” and u-boot.lds by modifying OUTPUT-FORMAT. Some C files and assambly files are passed but only some lib failed(just like above).

Would you please give your suggestion? Thank you!

Patrick