sun4i# bootm 0x48000000
## Booting kernel from Legacy Image at 48000000 ...
   Image Name:   Linux-3.0.76
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4260632 Bytes = 4.1 MiB
   Load Address: 40008000
   Entry Point:  40008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
data abort

    MAYBE you should read doc/README.arm-unaligned-accesses