Dear Wolfgang,
Is 0x3F00 really the correct offset? I doubt so.
What are your full U-Boot boot messages, and what does "flinfo" print?
* This is the print message of flinfo*
U-BOOT # flinfo
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
*U-Boot boot messages follow*
U-Boot 1.1.2 (Sep 19 2009 - 10:26:28)
Board: IAD 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
got bad crc. got:0x603b0489, expected:0x0
*** Warning - bad CRC, using default environment
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
*Print message after execution of saveenv command from uboot :
*Saving Environment to dataflash...
copy 0xad030000-0xad040000 to saveenv-buf 0x80100000.
erasing 0xad030000 - 0xad03ffff
Erasing sectors 0x3 to 0x3
sflash.c:69:DF_F_PageErase: erasing page: 0x3
done erasingsflash.c:164:DF_F_DataFlashWrite: write: src 0x80100000, dst
0x30000, size 0x10000
...........................................................................................................................................................
.....................................................................................................sflash.c:225:DF_F_DataFlashWrite:
final partial page
Hope this helps
Thanks
Rahanesh
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