Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754887AbbGPI6Y (ORCPT ); Thu, 16 Jul 2015 04:58:24 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:53597 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754566AbbGPI6U (ORCPT ); Thu, 16 Jul 2015 04:58:20 -0400 Date: Thu, 16 Jul 2015 09:57:39 +0100 From: Mark Brown To: Ranjit Abhimanyu Waghmode Cc: Michal Simek , Soren Brinkmann , "dwmw2@infradead.org" , "computersforpeace@gmail.com" , "zajec5@gmail.com" , "marex@denx.de" , "shijie.huang@intel.com" , "juhosg@openwrt.org" , "ben@decadent.org.uk" , "linux-mtd@lists.infradead.org" , "linux-spi@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Harini Katakam , Punnaiah Choudary Kalluri , "ran27jit@gmail.com" Message-ID: <20150716085739.GT11162@sirena.org.uk> References: <1436445895-25504-1-git-send-email-ranjit.waghmode@xilinx.com> <20150714164005.GE11162@sirena.org.uk> <7CFCFE83B8145347A1D424EC939F1C3CA7E53D@XAP-PVEXMBX01.xlnx.xilinx.com> <20150715160146.GS11162@sirena.org.uk> <7CFCFE83B8145347A1D424EC939F1C3CA7E758@XAP-PVEXMBX01.xlnx.xilinx.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="nvwB+Y2gyxL5aXTF" Content-Disposition: inline In-Reply-To: <7CFCFE83B8145347A1D424EC939F1C3CA7E758@XAP-PVEXMBX01.xlnx.xilinx.com> X-Cookie: Stay together, drag each other down. User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: 94.175.94.161 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [RFC PATCH 0/2] spi: add dual parallel & stacked mode support in Zynq MPSoC GQSPI controller X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1808 Lines: 44 --nvwB+Y2gyxL5aXTF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jul 16, 2015 at 07:27:34AM +0000, Ranjit Abhimanyu Waghmode wrote: > For an example take two flashes connected in stacked mode. > For user it doesn't matter whether how many flashes are really connected.= =20 > There will be situation like, single partition is spread across two flash= es (partition staring at the end of one flash and continued to the second f= lash). But it has to be shown contiguous to user. > In this scenario, I am not clear how MTD layer will handle the case. > It would be great if you could just put some light on it. That's something for the MTD layer or possibly even a layer above it to worry about - this situation is the same as we have with disks where we have md which combines other devices, if something similar is needed for flash we should use a similar pattern. --nvwB+Y2gyxL5aXTF Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJVp3ICAAoJECTWi3JdVIfQFH4H/jgoYSPT5C2B/zTNqOObAyHF fTf6kdLH3FXQaw5nenrlDtmAKe4I7jEx3Dc+pqKCQTyu6PazwiIVzFgg36NmaK21 IS2H8bScruoIq+Ur2776UaTgfA/AWBfxLasUZSF9TO1zKKh7c+WcyIG+2BTn1Jnb 4RrT7HNX8QYZ6mSIo1VfsxBM0MkwHfB6QtTZMSQm6Z968J1bqM4gI2scyq0OXsWT kveJeJiDYV82leFGfqhFUIDB4ySrFoAkYja8VDQ0cd3H68LJkFc9lziV92HRvqFm 6iu8l1ZM+BkjPK90G6SOuk8hEH97O1XAvYawOEDhZTqh7wolAXiOfJjjLKkO99E= =phUr -----END PGP SIGNATURE----- --nvwB+Y2gyxL5aXTF-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/