How to explain the u-boot.bin file in different version?

[quray]

I build the u-boot-2017.11 and u-boot-2021.07 for P2020RDB-PC and get two u-boot.bin file, 542KB for u-boot-2021.07 and 768KB for u-boot-2017.11. There is something different in these two u-boot.bin files.

In u-boot-2017.11 u-boot.bin file, the last part

but in u-boot-2021.7 u-boot.bin file ,the last part

I know that the reset vector is 0xfffffffc, and I flashed the 2017.7 u-boot.bin from 0xfff40000 of the nor flash, the board works. which address for 2021.7 u-boot.bin to flash? what is the difference between these two versions? 

[yipingwang]

Please try address 0xfff80000 if you program u-boot with CodeWarrior.

In fact, we suggest you use u-boot (2021.04) provided in LSDK 21.08 release.

I uploaded u-boot source code in the following link.

https://drive.google.com/file/d/1aCMPPmURqURoUhXdKi69U5ir9nmyV7l4/view?usp=sharing