From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755601AbYISTW4 (ORCPT ); Fri, 19 Sep 2008 15:22:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753907AbYISTWr (ORCPT ); Fri, 19 Sep 2008 15:22:47 -0400 Received: from az33egw01.freescale.net ([192.88.158.102]:62843 "EHLO az33egw01.freescale.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753620AbYISTWq (ORCPT ); Fri, 19 Sep 2008 15:22:46 -0400 Date: Fri, 19 Sep 2008 12:20:38 -0700 (PDT) From: Trent Piepho X-X-Sender: xyzzy@t2.domain.actdsltmp To: Jared Hulbert cc: Jamie Lokier , cotte@de.ibm.com, Greg Ungerer , linux-embedded@vger.kernel.org, nickpiggin@yahoo.com.au, =?UTF-8?Q?J=C3=B6rn_Engel?= , Linux-kernel@vger.kernel.org, linux-mtd , tim.bird@am.sony.com Subject: Re: [PATCH 00/10] AXFS: Advanced XIP filesystem In-Reply-To: <6934efce0809151243h60a6e48bpf0c7600d4badf3c4@mail.gmail.com> Message-ID: References: <6934efce0809121452kd20deb6m268715f6ed83a71e@mail.gmail.com> <20080915163421.GA13631@shareable.org> <6934efce0809151243h60a6e48bpf0c7600d4badf3c4@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 15 Sep 2008, Jared Hulbert wrote: >>>>> I'm using Spansion MirrorBit S29GL128N, which reads at about 0.6 MByte/s. >>> >>> If you are using a GL, you'll probably find our P33 a good fit and at >>> competitive prices to GL as I understand it. That's I think 50Mhz. >> >> What's a GL? Never heard of it - all I can think of is OpenGL :-) > > S29_GL_128N I'm using a S29GL064N chip. Going through linux and /dev/mtd I get 13.5 MB/sec and reading directly from the chips give 15 MB/sec. I've not mapped the chip cached and I'm not using the page burst mode. That would help a lot certainly, but the current flash speed isn't much of a bottleneck.