From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dragon.actrix.co.nz ([203.96.16.164]) by pentafluge.infradead.org with esmtp (Exim 3.22 #1 (Red Hat Linux)) id 18OtyM-0001lK-00 for ; Thu, 19 Dec 2002 06:15:55 +0000 Content-Type: text/plain; charset="iso-8859-1" From: Charles Manning Reply-To: manningc2@actrix.gen.nz To: Paul Nash , Russ Dill , linux-mtd@lists.infradead.org Subject: Re: Intel sez: Synchronous Flash and XIP is the future -- thought s? -->NAND Date: Thu, 19 Dec 2002 19:41:49 +1300 References: <43CB1396676FD4119F03001083FD299401A1C91F@neptune.kirkland.local> In-Reply-To: <43CB1396676FD4119F03001083FD299401A1C91F@neptune.kirkland.local> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <20021219064630.BCABD14EC0@dragon.actrix.co.nz> Sender: linux-mtd-admin@lists.infradead.org Errors-To: linux-mtd-admin@lists.infradead.org List-Help: List-Post: List-Subscribe: , List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: On Thu, 19 Dec 2002 02:13, Paul Nash wrote: > So what are people out there using in their designs for NAND primarily? > Raw NAND? NAND plus some bootable sector? DiskOnChip? > NAND has been around for over ten years now, but the real uptake has only been very recent. Until recently, most people have used DiskOnChip which is essentially just a raw NAND + an ASIC to do ECC + a very expensive price tag. Probably most NAND in use is SmartMedia (numerically speaking) - using FAT. These are just raw nand on a carrier card. Just ask David Woodhouse what he thinks about that! THis is being superceded by XD card. Now that there are very reliable NAND file systems (JFFS2 and YAFFS) that run under Linux and other OSs, it is becoming increasingly palatable to use raw NAND parts soldered down, or use SmartMedia/XD if you want an expanadable system. The new generation NAND parts expand to 16-bit data buses and have bootable code space. This makes it possible to build systems that are all NAND with no NOR in sight. -- CHarles