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