From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from canuck.infradead.org ([2001:8b0:10b:4::1]) by pentafluge.infradead.org with esmtps (Exim 4.43 #1 (Red Hat Linux)) id 1DYxR7-0007Nh-HE for linux-mtd@lists.infradead.org; Fri, 20 May 2005 03:40:29 +0100 Received: from mailbox.radixs.com ([203.81.41.217]) by canuck.infradead.org with esmtps (Exim 4.43 #1 (Red Hat Linux)) id 1DYxR3-0001qk-NM for linux-mtd@lists.infradead.org; Thu, 19 May 2005 22:40:28 -0400 From: Munira Ahmed To: Ralph Siemsen In-Reply-To: <428C7CCF.50606@netwinder.org> References: <1116226208.31694.26.camel@server11> <428899DA.3040507@netwinder.org> <1116293182.31694.47.camel@server11> <428BC09E.7070307@netwinder.org> <1116467146.18096.45.camel@server11> <428C7CCF.50606@netwinder.org> Content-Type: text/plain Date: Fri, 20 May 2005 10:40:11 +0800 Message-Id: <1116556811.18096.90.camel@server11> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Cc: "linux-mtd@lists.infradead.org" Subject: Re: stdio.h and kernel space List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Ralph The datasheet you are referring to is the right one and S29WSxxxN is using JEDEC 42.4 command set standard. I am not sure which JEDEC standard is impelmented by jedec_prob.c. Further if a separate driver is provided on AMD's website it must significantly be different otherwise they could simply have mentioned about the one in jedec_probe.c I believe that S29WSxxxN's MirrirBit technology provides many more security features as yet not available in other flash technologies. Recently they have sent me even a new version so now I have to study that one and see how could that one be used. Thanks for taking the trouble of going through the specs and the kernel as well. It really amazes me how keen people are to help each other. I have got many problems solved by the wonderful community help. Regards and thanks to all On Thu, 2005-05-19 at 07:47 -0400, Ralph Siemsen wrote: > Munira Ahmed wrote: > > S29WSxxxN. Does not seem to be supported > > According to datasheet the programming sequence looks rather like the > JEDEC standard method found in drivers/mtd/chips/jedec_probe.c, > particularly the jedec_reset() function matches the code shown on page > 28 of the datasheet. > > Datasheet i'm looking at is > http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/s29ws-n_00_g0_e.pdf > hopefully this is the right one ;) > > So the standard driver might just need an extra entry for vendor/device > codes. Maybe ;) > > -R > -- Munira Ahmed