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From: Philippe Bentz <philippe.bentz@dialine.fr>
To: linux-mtd@lists.infradead.org
Subject: M29W640DB bad address for writing (0x554)
Date: Mon, 6 Mar 2006 15:26:27 +0100	[thread overview]
Message-ID: <200603061526.28697.philippe.bentz@dialine.fr> (raw)

Hi all,

I'm working with a M29W640DB, a 16 bits flash, in a 8 bits mode.
With CFI detection the MTD driver fails to program memory.
After a lot of debugging we discover that the cfi_send_gem_cmd generates a 
command with a 0x554 adress that could'not be recognized by the flash whereas 
it's waiting for 0x555. 
The formula cmd_ofs * interleave * type (our type is 2 and cmd_ofs 0x2AA) 
seems to be incorrect. So we add a conditional statement after the formula 
that changes 0x554 to 0x555, and it works perfectly. 
So what's the issue ?
It seems that this formula will never work for 16bits flash that are used in 8 
bits mode ?

Thanks for your help.

-- 
Philippe Bentz

             reply	other threads:[~2006-03-06 14:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-06 14:26 Philippe Bentz [this message]
2006-10-18 15:20 ` M29W640DB bad address for writing (0x554) Ronny L Nilsson

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