make the u-boot have UBI support, but not work

I am using my custom board based on TMS320DM8168, I want to boot from Nand using UBIFS. And I did as the  said.At first I change the u-boot to support UBIFS.

I add the defines listed in the file, and make. unfortunately, it had errors.

And I change the other thing in the picture.

lucky,I make it. So I flash the u-boot.noxip.bin to the nand via u-boot and SD.

(Please visit the site to view this file)

At last, the biggest problem come out. After the u-boot flashed into nand, and I can not reboot from nand. And I can see nothing from the uart.What should i do is booting from SD and erase the nand.

But I want to use the ubi, can you tell me how to do?