[U-Boot] question about uboot and mpc8548cds

Hi, all

I am a newbie using uboot-1.3.4 on mpc8548cds and I can not bring up my board.

system hangs up when executing the instrction:

lwz r5, 0(r3)

this instruction is accessing the CCSR register after CCSBAR is relocated to 0xe0000000, and the value of r3 register is 0xe0000000.

I use the default settings. could somebody give me some directions ?

regards!