From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ben Warren <bwarren@qstreams.com>
Date: Thu, 18 Oct 2007 10:00:43 -0400
Subject: [U-Boot-Users] include/flash.h: Entries for Spansion S29JL064H
 flash?
In-Reply-To: <1192710723.2656.0.camel@rt.jesacco.com>
References: <1192710723.2656.0.camel@rt.jesacco.com>
Message-ID: <4717670B.3050605@qstreams.com>
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To: u-boot@lists.denx.de

Hi Joseph,

Joseph E. Sacco, Ph.D. wrote:
> Hi, 
>
> I am new to U-Boot. 
> [Yes... I have been reading the documentation, albeit slowly. There is
> much to learn.]
>
> I need to modify include/flash.h to support Spansion S29JL064H flash
> memory
>
>         http://www.spansion.com/products/S29JL064H.html
>
>
> A search through previous postings to this list did not reveal
> appropriate values for
>
>         * Device ID
>
>         * Internal FLASH identification code
>
> [Do I need one or the other or both?]
>   
This chip is CFI compliant. CFI stands for 'Common Flash Interface', and 
means that software can learn the chip's topology via a standard query 
method. In short, you shouldn't need to do anything with flash.h, all 
you need to do is specify in your board's /include/configs/*.h file that 
your board uses CFI. Lots of other boards use it, so look through the 
source to figure out the exact syntax.

regards,
Ben