From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Roese <sr@denx.de>
Date: Thu, 20 Jun 2013 08:00:21 +0200
Subject: [U-Boot] Flash not Erased
In-Reply-To: <51C1CFB0.2040705@shf.de>
References: <51C1CFB0.2040705@shf.de>
Message-ID: <51C29A75.20000@denx.de>
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To: u-boot@lists.denx.de

Hi Jan,

On 19.06.2013 17:35, Jan Schunke wrote:
> I am trying to compile my own U-Boot for microblaze.
> Version:
> U-Boot 2013.01-dirty (Jun 19 2013 - 16:26:51)
> microblazeel-xilinx-linux-gnu-gcc (crosstool-NG 1.15.3) 4.6.4 20120924
> (prerelease)
> GNU ld (crosstool-NG 1.15.3) 2.22.90.20121010
> 
> I have demo where Flash access works fine.
> Verion:
> U-Boot 2012.10 (Feb 13 2013 - 20:16:43)
> microblazeel-xilinx-linux-gnu-gcc (crosstool-NG 1.15.3) 4.6.2 20111018
> (prerelease)
> GNU ld (crosstool-NG 1.15.3) 2.21.53.20110813
> 
> 
> When I use my own u-boot and try to write to flash I always get
> 
> "Flash not erased"
> 
> it seems to be a problem that my flash is x16 but recognized as x8.
> 
> Are there any Config variables to set the mode to x16?

This is a known problem. Those chips connected in x8 mode are known to
currently not work correctly with the common CFI NOR flash driver. Could
you please try the following patch:

http://patchwork.ozlabs.org/patch/249707/

And let us know if this fixes the problem?

Thanks,
Stefan

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