U-Boot SPL 2013.07-07792-g2968923-dirty (Aug 03 2013 - 12:46:14)
Board: marsboard
DRAM: 1024MB
Failed to set core voltage!. Can't set CPU frequency
SUNXI SD/MMC: 0


U-Boot 2013.07-07792-g2968923-dirty (Aug 03 2013 - 12:46:14) Allwinner Technology

CPU:   Allwinner A10 (SUN4I)
Board: Marsboard 1GB
I2C:   ready
DRAM:  1 GiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot:  0
reading uEnv.txt
** Unable to read file uEnv.txt **
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
reading boot.scr
** Unable to read file boot.scr **
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
reading script.bin
36288 bytes read in 11 ms (3.1 MiB/s)
reading uImage
4261836 bytes read in 289 ms (14.1 MiB/s)
## Booting kernel from Legacy Image at 48000000 ...
   Image Name:   Linux-3.0.76
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4261772 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