Yep! The ppcboot is very ancient. hehe.<br>Actually, my board is DHT-walnut: <a href="http://elinux.org/DHT-Walnut_U_Boot">http://elinux.org/DHT-Walnut_U_Boot</a><br>The web provides a pre-compiled bin uboot 1.1.4 for my board. The size is 256KB.<br>
I downloaded it, and burn this bin into flash. But the board is still not work.<br>Well, you point out a very important thing that 4xx use 0xfffffffc as the reset vector.<br>My flash is 512KB larger, therefore the bin only fills the first 256KB of the flash.<br>
The reset vector is not set correct. Am I correct? It seem that it depends on how CPU<br>maps flash contents into address space. And how to set it? I don't know<br>how to determine the real entry of a specific uboot-bin. :<<br>
<br>Thank you for your help.<br>---<br>ShenLei<br>