U-Boot# bootm 0x80200000 0x80800000 0x81000000
## Booting kernel from Legacy Image at 80200000 ...
   Image Name:   Linux-3.8.13-dirty
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4080504 Bytes = 3.9 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 80800000 ...
   Image Name:   vlad
   Image Type:   ARM Linux RAMDisk Image (gzip compressed)
   Data Size:    1912832 Bytes = 1.8 MiB
   Load Address: 80800000
   Entry Point:  80800000
   Verifying Checksum ... OK
ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
U-Boot#