From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-fx0-f49.google.com ([209.85.161.49]) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QTavM-0006kZ-Be for linux-mtd@lists.infradead.org; Mon, 06 Jun 2011 14:37:04 +0000 Received: by fxm14 with SMTP id 14so3609494fxm.36 for ; Mon, 06 Jun 2011 07:36:58 -0700 (PDT) Subject: Re: impact of 2X_PROGRAM on read operations From: Artem Bityutskiy To: David Wagner In-Reply-To: <4DECC41F.5060808@free-electrons.com> References: <4DECC41F.5060808@free-electrons.com> Content-Type: text/plain; charset="UTF-8" Date: Mon, 06 Jun 2011 17:32:41 +0300 Message-ID: <1307370761.3112.76.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: kmpark@infradead.org, linux-mtd@lists.infradead.org Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, 2011-06-06 at 14:12 +0200, David Wagner wrote: > Is there a way to safely read without 2X_PROGRAM enabled once it has > been flashed with a 2X_PROGRAM-enabled flasher (e.g. patched u-boot). Not sure about u-boot, but AFAIK 2x is a completely separate mode which gives you I/O speed-up but makes things incompatible with "normal" mode. E.g., you can mount JFFS2 only in one of the modes. -- Best Regards, Artem Bityutskiy (Артём Битюцкий)