Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933265AbbLHGpb (ORCPT ); Tue, 8 Dec 2015 01:45:31 -0500 Received: from mailout.micron.com ([137.201.242.129]:63684 "EHLO mailout.micron.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933060AbbLHGp2 (ORCPT ); Tue, 8 Dec 2015 01:45:28 -0500 From: =?gb2312?B?QmVhbiBIdW8gu/Sx87HzIChiZWFuaHVvKQ==?= To: Brian Norris , Cyrille Pitchen CC: "linux-mtd@lists.infradead.org" , "nicolas.ferre@atmel.com" , "marex@denx.de" , "vigneshr@ti.com" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "robh+dt@kernel.org" , "pawel.moll@arm.com" , "mark.rutland@arm.com" , "ijc+devicetree@hellion.org.uk" , "galak@codeaurora.org" Subject: RE: [PATCH linux-next 0/5] mtd: spi-nor: add driver for Atmel QSPI controller Thread-Topic: [PATCH linux-next 0/5] mtd: spi-nor: add driver for Atmel QSPI controller Thread-Index: AQHRMSZWykU45oYb1kuwJJaYJWEbHJ7AoZ0Q Date: Tue, 8 Dec 2015 06:44:41 +0000 Message-ID: References: <20151207193441.GO120110@google.com> In-Reply-To: <20151207193441.GO120110@google.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.167.84.5] x-tm-as-product-ver: SMEX-11.0.0.4179-7.500.1018-21632.003 x-tm-as-result: No--40.370200-0.000000-31 x-tm-as-user-approved-sender: Yes x-tm-as-user-blocked-sender: No x-mt-checkinternalsenderrule: True Content-Type: text/plain; charset="gb2312" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id tB86jdxQ014459 Content-Length: 478 Lines: 8 > > I'll admit I'm a little fuzzy on the differences between dual and quad modes on > various flash manufacturers. Can you help clear it up for me? For SPI NOR, currently, don't have an official standard to define an uniform Quad I/O mode protocol. So we can see that there are some difference between Flash Vendor. ????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?