From mboxrd@z Thu Jan  1 00:00:00 1970
From: Brian Norris <computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [RFC PATCH 0/7] mtd: partitions: add of_match_table support
Date: Fri, 11 Dec 2015 17:33:49 -0800
Message-ID: <20151212013349.GA86087@google.com>
References: <1449292763-129421-1-git-send-email-computersforpeace@gmail.com>
 <CAMuHMdUJXHs_OhT0da+kzc=D4MOFUT9BB3eJ+7a_p6DYx-PKBA@mail.gmail.com>
 <20151210205449.GL144338@google.com>
 <CAMuHMdV-uethsChWVZGSx1JNcAofODmg14ppGYJP2ewfwhEv1Q@mail.gmail.com>
Mime-Version: 1.0
Return-path: <devicetree-spec-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=date:from:to:cc:subject:message-id:references:mime-version
         :content-type:content-disposition:in-reply-to:user-agent;
        bh=tc8plVFDPsl9XGzr72vJVK5s/tdhS3KfHIxUz/HXzTo=;
        b=iKeW/h84HaAF2oAz4D384VT5trUWhnW89OI4Uy/tZzbmVFmbiPRSNu9IX3LAhGAyZj
         I6r3+e6pRfKsLemsFg1TVw+JccLJuWexI1d7TBN8NrYLBf0ldNVs8x0J9pLCQmbvlKQG
         JxGMxp2omddbC2qkbTJEEOEwM6ITFxeYug6rEHFZ6n10WdMOavywEZEBqTNjTWSF6kdF
         qdwzCDO6bZ8Wk8VPLP96K+vFWL1diccrNd6jNLc9JZnXSDosQH6UdZUuW5RKS5EuXcTo
         hyyj+gb4sTUi2Qb3wpZpiUt2LcYwoKLqYBVdICal+Yt3CAT7W5O3GAOpkP2YqnaTjkEa
         lBlw==
Content-Disposition: inline
In-Reply-To: <CAMuHMdV-uethsChWVZGSx1JNcAofODmg14ppGYJP2ewfwhEv1Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Sender: devicetree-spec-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
List-ID: <devicetree-spec.vger.kernel.org>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>
Cc: MTD Maling List <linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>, "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Boris Brezillon <boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>, Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>, Simon Arlott <simon-A6De1vDTPLDsq35pWSNszA@public.gmane.org>, Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>, Jonas Gorski <jogo-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>, "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, devicetree-spec-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= <zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Hauke Mehrtens <hauke-5/S+JYg5SzeELgA04lAiVw@public.gmane.org>, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>, David Hendricks <dhendrix-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>

On Fri, Dec 11, 2015 at 09:44:37AM +0100, Geert Uytterhoeven wrote:
> On Thu, Dec 10, 2015 at 9:54 PM, Brian Norris
> <computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > IOW, I wouldn't expect MBR or GPT to work well on large raw NAND flash,
> > and so I don't plan to do that sort of work myself. If you can provide
> > some better argument for it, and some nice maintainable code to go with
> > it, then of course it could be considered :)
> 
> There's also NOR FLASH (e.g. SPI-NOR), which is what most boards I'm
> working on have.

OK. But these flash are often used for the boot firmware, no? And then,
does the boot code have to be provided at one end of the flash (e.g.,
bottom)? If so, then something like MBR or GPT will likely not apply,
since they reserve the first (and sometimes last) blocks of the medium.

Brian