From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH 1/3] spi/qspi: Add memory mapped read support. Date: Thu, 10 Oct 2013 11:14:10 +0100 Message-ID: <20131010101410.GG21581@sirena.org.uk> References: <52566ACC.1080100@ti.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1444841976072649603==" Cc: Peter Korsgaard , Trent Piepho , balbi@ti.com, "linux-mtd@lists.infradead.org" , "spi-devel-general@lists.sourceforge.net" , computersforpeace@gmail.com, dwmw2@infradead.org To: Sourav Poddar Return-path: In-Reply-To: <52566ACC.1080100@ti.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+gldm-linux-mtd-36=gmane.org@lists.infradead.org List-Id: linux-spi.vger.kernel.org --===============1444841976072649603== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="1/Dn3Y6YyfrTkYGL" Content-Disposition: inline --1/Dn3Y6YyfrTkYGL Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Oct 10, 2013 at 02:22:28PM +0530, Sourav Poddar wrote: > [Trent]: With mapping driver, I believe you are hinting at > drivers/mtd/maps? I had > a look at it and what I got is that it is used/suitable for parallel > flashes and not the > serial flashes. Essentially what it looks like this hardware is trying to do is adapt a serial flash so it looks more like a parallel flash. It's not clear that this is a good idea if we are already able to understand serial flash though. --1/Dn3Y6YyfrTkYGL Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJSVn3uAAoJELSic+t+oim9CCMQAJDvhzGwOH6RVk/ERlFG1K9o AnFN++E8s1pOMZ/C82ukgoL8hFpi0T8pi2VllTg3rFdQdGk/5+buo9n+MM+Y/gvP IR7OMTzBFQJl6QByzTbIGKR8YP6gT19oTIO/PsMB5rb3rqK9Ewq4bJqGgPtIhefz JN0m47RqwhZR0CBkp82fdVOl1rFbnYMTHSkzEAH7H1DEtEvV536L8AvLLOA0L3TD AK4/meXQGPp59asHYtp3a2eWG6Hno61PqSDjcXkPU2c8Mq7ePlRbJfyuTIsXkocF v0sZA1onTBPPUmgz0KKl5JRuUhSIJJJAsA0ODNvNUGFoz1kzdCNqhodgMohPq9ri MVWZCI6JUI7PRXwjBiR/BZSr2dmBFSHz7ABqRl1+S2V7F9Cjt2DuH/a/ESyenOJx Ibe6HczVShEcxfo5Ic04ddXYB6HMDTWKnMF2PqGMKalZ8gAQ77G3BRbfbV+S0nK5 Vs48ScuEB1eG3ChyLzH8Ruw5I8K3Q0zleATk1ROYiWihnqa2h8Q1Q2/WjiKvTkda S8p91RP2rvnlUXwUGRq4h6j+y4FG3pl5Cp8c0uVlHtEPoVEzXYwFCUL9QKV6uZ0D FA9Et719JulEEMUrqDknNNryQ3oS4uGtkKScQEz1O65X6cMFT8Ue7yLgIMMbdj0I NBWS4K49GQU5uq6bfptn =f0nu -----END PGP SIGNATURE----- --1/Dn3Y6YyfrTkYGL-- --===============1444841976072649603== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ --===============1444841976072649603==-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [2001:41c8:1:5384::2] (helo=cassiel.sirena.org.uk) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VUDGR-0008KL-0d for linux-mtd@lists.infradead.org; Thu, 10 Oct 2013 10:14:39 +0000 Date: Thu, 10 Oct 2013 11:14:10 +0100 From: Mark Brown To: Sourav Poddar Message-ID: <20131010101410.GG21581@sirena.org.uk> References: <52566ACC.1080100@ti.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="1/Dn3Y6YyfrTkYGL" Content-Disposition: inline In-Reply-To: <52566ACC.1080100@ti.com> Subject: Re: [PATCH 1/3] spi/qspi: Add memory mapped read support. Cc: Peter Korsgaard , Trent Piepho , balbi@ti.com, "linux-mtd@lists.infradead.org" , "spi-devel-general@lists.sourceforge.net" , computersforpeace@gmail.com, dwmw2@infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --1/Dn3Y6YyfrTkYGL Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Oct 10, 2013 at 02:22:28PM +0530, Sourav Poddar wrote: > [Trent]: With mapping driver, I believe you are hinting at > drivers/mtd/maps? I had > a look at it and what I got is that it is used/suitable for parallel > flashes and not the > serial flashes. Essentially what it looks like this hardware is trying to do is adapt a serial flash so it looks more like a parallel flash. It's not clear that this is a good idea if we are already able to understand serial flash though. --1/Dn3Y6YyfrTkYGL Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJSVn3uAAoJELSic+t+oim9CCMQAJDvhzGwOH6RVk/ERlFG1K9o AnFN++E8s1pOMZ/C82ukgoL8hFpi0T8pi2VllTg3rFdQdGk/5+buo9n+MM+Y/gvP IR7OMTzBFQJl6QByzTbIGKR8YP6gT19oTIO/PsMB5rb3rqK9Ewq4bJqGgPtIhefz JN0m47RqwhZR0CBkp82fdVOl1rFbnYMTHSkzEAH7H1DEtEvV536L8AvLLOA0L3TD AK4/meXQGPp59asHYtp3a2eWG6Hno61PqSDjcXkPU2c8Mq7ePlRbJfyuTIsXkocF v0sZA1onTBPPUmgz0KKl5JRuUhSIJJJAsA0ODNvNUGFoz1kzdCNqhodgMohPq9ri MVWZCI6JUI7PRXwjBiR/BZSr2dmBFSHz7ABqRl1+S2V7F9Cjt2DuH/a/ESyenOJx Ibe6HczVShEcxfo5Ic04ddXYB6HMDTWKnMF2PqGMKalZ8gAQ77G3BRbfbV+S0nK5 Vs48ScuEB1eG3ChyLzH8Ruw5I8K3Q0zleATk1ROYiWihnqa2h8Q1Q2/WjiKvTkda S8p91RP2rvnlUXwUGRq4h6j+y4FG3pl5Cp8c0uVlHtEPoVEzXYwFCUL9QKV6uZ0D FA9Et719JulEEMUrqDknNNryQ3oS4uGtkKScQEz1O65X6cMFT8Ue7yLgIMMbdj0I NBWS4K49GQU5uq6bfptn =f0nu -----END PGP SIGNATURE----- --1/Dn3Y6YyfrTkYGL--