From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tolunay Orkun <listmember@orkun.us>
Date: Fri, 12 Aug 2005 17:56:40 -0500
Subject: [U-Boot-Users] CFI, saveenv Flash no Erased
In-Reply-To: <42FCE953.1010605@psyent.com>
References: <42FCE953.1010605@psyent.com>
Message-ID: <42FD2928.2090605@orkun.us>
List-Id: <u-boot.lists.denx.de>
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To: u-boot@lists.denx.de

The timeout check is not correct in the current code. I had submitted a 
patch to Wolfgang on July 2nd, 2005. I do not know if/when he will apply 
it. The patch is available via:

http://sourceforge.net/mailarchive/message.php?msg_id=12234135

Try if it solves your issue...

Best regards,
Tolunay

Scott McNutt wrote:
> Hi All,
> First, my thanks to the CFI developers -- great job!
> 
> With the erase and cp commands, the CFI flash driver seems just
> fine. However, when I execute saveenv (env is in flash), I observe
> "Flash not Erased".
> 
> I'm using AMDLV065D on a Nios-II board with the latest cfi_flash.c
> (rev 1.18). In routine flash_write_cfiword (cfi_flash.c, line 1146),
> flag == 0, indicating that the flash is not "(sufficiently) erased":
> 
>     flag = ((cptr.cp[0] & cword.c) == cword.c);
> 
> Adding a delay of about 500 msec corrects the problem, and I was able
> to trace the bits changing (eventually) to 0xff with some hack code.
> 
> This is the first time I've worked with the CFI code, so I'm looking
> for some guidance from someone familiar with the code on how to track
> down the problem/potential solution & where I should focus my attention.
> 
> Thanks,
> --Scott
> 
> 
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