From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pb0-x22b.google.com ([2607:f8b0:400e:c01::22b]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VqxiP-00014v-9C for linux-mtd@lists.infradead.org; Thu, 12 Dec 2013 04:17:33 +0000 Received: by mail-pb0-f43.google.com with SMTP id rq2so11252396pbb.16 for ; Wed, 11 Dec 2013 20:17:11 -0800 (PST) Date: Thu, 12 Dec 2013 12:17:05 +0800 From: Huang Shijie To: Angus Clark Subject: Re: [PATCH] mtd: m25p80: add support for Spansion s25fl128s chip Message-ID: <20131212041704.GB1460@gmail.com> References: <528DCFBD.9000905@st.com> <528DD70B.8010602@freescale.com> <528DE9A8.6060207@st.com> <528EBDAE.7070408@freescale.com> <20131204235831.GF27149@ld-irv-0074.broadcom.com> <20131205022025.GA24434@shlinux2.ap.freescale.net> <52A05BA6.9080800@st.com> <20131206100220.GA16069@shlinux2.ap.freescale.net> <52A584D7.9030200@st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52A584D7.9030200@st.com> Cc: Marek Vasut , Huang Shijie , Brian Norris , "linux-mtd@lists.infradead.org" List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, Dec 09, 2013 at 08:52:39AM +0000, Angus Clark wrote: > > > Brian doubt that some NOR can not be read out more then 5 bytes. > > I believe it is always safe to over-read the READID data. I have found that > devices either repeat the READID, or start returning 0x00 bytes. I will send a patch set after the spi-nor framework is merged. This issue is a low priority now. thanks Huang Shijie