hang

U-Boot SPL 2014.04-10690-g2e4c692 (Jul 13 2014 - 15:46:57)
Board: Cubieboard
DRAM: 1024 MiB
CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2
spl: not an uImage at 1600


U-Boot 2014.04-10690-g2e4c692 (Jul 13 2014 - 15:46:57) Allwinner Technology

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

In:    serial
Out:   serial
Err:   serial
Net:   emac
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
378 bytes read in 16 ms (22.5 KiB/s)
Jumping to boot.scr
## Executing script at 44000000
reading uImage
2653248 bytes read in 212 ms (11.9 MiB/s)
reading sun4i-a10-cubieboard.dtb
7940 bytes read in 28 ms (276.4 KiB/s)
## Booting kernel from Legacy Image at 46000000 ...
   Image Name:   Linux-3.13.11.4
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2653184 Bytes = 2.5 MiB
   Load Address: 40008000
   Entry Point:  40008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 49000000
   Booting using the fdt blob at 0x49000000
   Loading Kernel Image ... OK
   Using Device Tree in place at 49000000, end 49004f03

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.13.11.4 (root@bhag-ThinkPad-T420) (gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-11ubuntu1) ) #4 SMP Thu Jul 24 01:47:28 IST 2014 ()
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: Cubietech Cubieboard
[    0.000000] bootconsole [earlycon0] enabled