[U-Boot] Warning Bad CRC

[Wolfgang Denk]

Dear Rahanesh,

In message <4AB786B9.4080000 at tataelxsi.co.in> you wrote:
>
> 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=3D 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

Ah! Here you can see that the CRC is incorrect in U-Boot already, so
why do you expect to see a different result when using fw_printenv?

WHen the CRC _is_ incorrect, both U-Boot and fw_printenv will report
this fact in the same way.

> *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=20
> 0x30000, size 0x10000

I have no idea what sort of code you might be using there, there is no
such file as 'sflash.c' in the mainline U-Boot code.

And U-Boot 1.1.2 is old. I mean: OLD. Really, really OLD. Nearly 5
years old.

Please consider it completely unsupported at this time.

Please update and use recent code instead.

Best regards,

Wolfgang Denk

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