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[ts-7000] Re: ts7200 flash write problem

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Subject: [ts-7000] Re: ts7200 flash write problem
From: "charliem_1216" <>
Date: Mon, 02 Jul 2007 04:59:40 -0000
Hi Oguzhan--

--- In  "urhano" <> wrote:
>
> Hi Charlie,
> 
> --- In  "charliem_1216" <charliem_1216@> 
> wrote:
> >
> > Hi Oguzhan --
> > 
> > --- In  "urhano" <urhano@> wrote:
> > >
> > > Hi,
> > > 
> > > When I trying something on ts7200 I have noticed that I can 
not 
> > write 
> > > or delete anything from on-board flash memory. For example 
when I 
> > try 
> > > to delete a file, I'm receiving following errors.
> > > 
> > > $ rm kesme1
> > > SR.4 or SR.5 bits set in buffer write (status 98). Clearing.
> > > SR.4 or SR.5 bits set in buffer write (status 98). Clearing.
> >  
> > > Is there any suggestion on this?
> > > 
> > > Thanks,
> > > Oguzhan 
> > > 
> 
> > Is this an old board just now starting to show problems, or is 
it a 
> > new board that has always had problems?
> 
> It is a pretty new board. It has just stated to give this problem.
> 

It sounds like it could be a hardware problem.

> > If you can compile and test your own kernel, you can try to
> > define 
> > DEBUG_CFI_FEATURES which will tell more about the feature set 
> > detected from the flash.  Also you could try to define 
> > CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE, which works around 

If you can't (re)compile your kernel, try the user-space tool 
mtd-debug to dump the feature set (part of the mtd-utils package).  
There is a precompiled arm version around somewhere ...

> I have looked up the sources of the kernel and found the related 
> definations you have mentioned. However, I don't have any 
> experince 
> on kernel compilation. But, even I can compile it I can't write 
> anything to the on-board flash. So, since I can't load the kernel
> to 
> the flash memory, I think it does not work for me.

Can you set up a NFS-root boot?  Then you could mount /dev/mtdblock1 
and take a copy of your root fs.  Once copied, you could re-write 
(format) the partion if possible.  

>  
> > Maybe you are reaching the end of the number of write cycles the 
> > flash can take?  Anyone know the symptoms a TS-7200 would show 
in 
> > such a case?
> 
> It is not possible to reach the maximum write cycle for me. 
Because 
> the board is actually new. I have programmed it not more than 
several 
> hundred times. 
> 
> Any suggestion at this point is really important. Because the 
board 
> is really locked. If I can change the boot sequence I will load 
the 
> Debian to the CF and use it. But since the Redboot also resides in 
on-
> board flash I can't do anything about this. 

You don't need to write the default boot parameters into the onboard 
flash; you can still specify an NFS boot at the command line.

> 
> Thanks for any suggestion,
> Oguzhan
>

Regards, ....... Charlie



 
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