[U-Boot-Users] AT91SAM9260-EK: Trying to load U-Boot env from NAND

[Destrukto]

Well now I had time to solve the problem once and for all. If I look back the
solution was so simple. Because we use a .bat and .tcl file to copy all on
the NAND-Flash we haven't set the active ENV-Block (one redundant and one in
use). Now I simply ad the flag set in the .tcl file and it works:

################################################################################
#  proc uboot_env: Convert u-boot variables in a string ready to be flashed
#                  in the region reserved for environment variables
################################################################################
proc set_uboot_env {nameOfLstOfVar} {
    upvar $nameOfLstOfVar lstOfVar
   
    # sector size is the size defined in u-boot CFG_ENV_SIZE
    set sectorSize [expr 0x20000 - 5]
    set flag 1                                                                    
<- I added this

    set strEnv [join $lstOfVar "\0"]
    while {[string length $strEnv] < $sectorSize} {
        append strEnv "\0"
    }
    set strCrc [binary format i [::vfs::crc $strEnv]]
    return "$strCrc$flag$strEnv"                                           
<- and the $flag
} 



Andreas Schweigstill wrote:
> 
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> 
> Hello!
> 
> Destrukto wrote:
>> Well, until now I haven't got any problem with this solution.
> 
> You probably don't have a problem but your customers will get them.
> I wish you some luck when your product goes to mass production if you
> neither have found out why your environment storage has problems nor
> if you don't have any error recovery.
> 
> With best regards
> Andreas Schweigstill
> 
> PS.: If you need a consultant which does some forensics on your failed
>   products and is able to find a quick and clean(!) solution don't
>   hesitate to contact me. ;-)
> 
> - --
> Dipl.-Phys. Andreas Schweigstill
> Schweigstill IT | Embedded Systems
> Schauenburgerstraße 116, D-24118 Kiel, Germany
> Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436
> Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/
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> =owny
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