[U-Boot] Needed Changes for updating to u-boot-2015.10 from u-boot-1.1.6

[Ravi Koganti]

Hello,

I have ARM9 processor board with uboot version u-boot-1.1.6. Now I want to
change it to u-boot-2015.10. But the whole uboot structure got changed from
version 1.1.6 to 2015.10.

Please guide me to do it or share any link contain the details.

Thanks,
Ravi