[U-Boot] Problem booting Linux from Flash

[Rahanesh]

Hi all,

I am trying to boot  Linux from flash on MIPS Board.
When uBoot tries to boot Linux it fails saying "Verifying Checksum 
Failed.... bad data crc".
The bootcmd is fsload 0x80800000 /boot/uImage; bootm 0x80800000.

But When i do a tftp of the same image(uImage) to same 
address(0x80800000) it works fine.
What might be the problem when it is loading uImage from flash?

Log is as shown below:

Bootrom Version [RTEMS]:  Rel_30
Chip: Atlanta A80
Board: REF MTA

U-Boot 1.1.2 (Jul 17 2009 - 10:32:57)
Board: MIPS CPU Speed 200 MHz
DRAM:  32 MB
sflash.c:266:DF_F_DataflashProbe: Entered
sflash.c:269:DF_F_DataflashProbe: flash type is 0x1
sflash.c:270:DF_F_DataflashProbe: num pages 32768
DataFlash:Nb pages:  32768
Page Size:    256
Size= 8388608 bytes
Logical address: 0xAD000000
Nb Erase Blocks:    128
Erase Block Size:  65536
Area 0: AD000000 to AD003FFF
Area 1: AD004000 to AD03FFFF
Area 2: AD040000 to AD30BFFF
Area 3: AD30C000 to AD7FFFFF
crc matched
In:    serial
Out:   serial
Err:   serial
Net:   Eth.

Type "run flash_nfs" to mount root filesystem over NFS

Hit any key to stop autoboot:  0
### JFFS2 loading '/boot/uImage' to 0x80800000
Scanning JFFS2 FS: . done.
### JFFS2 load complete: 1853548 bytes loaded to 0x80800000
## Booting image at 80800000 ...
   Image Name:   Linux Kernel Image with ramdisk.
   Created:      2009-07-17  11:01:27 UTC
   Image Type:   MIPS Linux Kernel Image (gzip compressed)
   Data Size:    1853484 Bytes =  1.8 MB
   Load Address: 80100000
   Entry Point:  80423000
   Verifying Checksum ... Bad Data CRC
uboot>#

Please Help

Thanks
Rahanesh