I am not sure what you are referring to exactly. This walkthrough helped me to get to a functional image
http://www.freescale.com/.../app_note/AN3408.pdf
I don't know what auto boot is. Perhaps you are referring to automatically booting to the linux image on power up? Typically you would load the image from flash into ram and then jump to it. You can flash a script into lolo that does that. Go take a look at the lolo docs here,
http://www.logicpd.com/do...10/1002184_Rev_C.pdf
http://www.logicpd.com/do...7/70000016_Rev_K.pdf
HTH