Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932383AbWB1SJE (ORCPT ); Tue, 28 Feb 2006 13:09:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932388AbWB1SJE (ORCPT ); Tue, 28 Feb 2006 13:09:04 -0500 Received: from khc.piap.pl ([195.187.100.11]:8452 "EHLO khc.piap.pl") by vger.kernel.org with ESMTP id S932385AbWB1SJC (ORCPT ); Tue, 28 Feb 2006 13:09:02 -0500 To: "linux-os \(Dick Johnson\)" Cc: "Lennart Sorensen" , , Subject: Re: o_sync in vfat driver References: <20060227132848.GA27601@csclub.uwaterloo.ca> <1141048228.2992.106.camel@laptopd505.fenrus.org> <1141049176.18855.4.camel@imp.csi.cam.ac.uk> <1141050437.2992.111.camel@laptopd505.fenrus.org> <1141051305.18855.21.camel@imp.csi.cam.ac.uk> <20060228151856.GB27601@csclub.uwaterloo.ca> From: Krzysztof Halasa Date: Tue, 28 Feb 2006 19:09:00 +0100 In-Reply-To: (linux-os@analogic.com's message of "Tue, 28 Feb 2006 11:16:30 -0500") Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 899 Lines: 24 "linux-os \(Dick Johnson\)" writes: > Here is an instrumented erase function on a driver that rewrites > the first sector of a BIOS ROM. Unlike the Flash DISKS, the > BIOS ROM has no buffering in static RAM so you can gustimate > the actual time to erase............ The NOR flash is different but Samsung manual for K9F5608U0A-YCB0, K9F5608U0A-YIB0 32M x 8 Bit NAND Flash Memory says: FEATURES GENERAL DESCRIPTION - Page Program : (512 + 16)Byte - Block Erase : (16K + 512)Byte - Program time : 200us(Typ.) - Block Erase Time : 2ms(Typ.) - Endurance : 100K Program/Erase Cycles - Data Retention : 10 Years -- Krzysztof Halasa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/