Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755840AbaAWBtP (ORCPT ); Wed, 22 Jan 2014 20:49:15 -0500 Received: from mail-ob0-f170.google.com ([209.85.214.170]:50718 "EHLO mail-ob0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755563AbaAWBtN (ORCPT ); Wed, 22 Jan 2014 20:49:13 -0500 Date: Wed, 22 Jan 2014 17:49:06 -0800 From: Brian Norris To: Boris BREZILLON Cc: Maxime Ripard , Rob Landley , Russell King , David Woodhouse , Grant Likely , devicetree@vger.kernel.org, linux-doc@vger.kernel.org, dev@linux-sunxi.org, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Huang Shijie Subject: Re: [RFC PATCH 1/9] mtd: nand: retrieve ECC requirements from Hynix READ ID byte 4 Message-ID: <20140123014906.GY8919@ld-irv-0074> References: <1389190924-26226-1-git-send-email-b.brezillon@overkiz.com> <1389190924-26226-2-git-send-email-b.brezillon@overkiz.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1389190924-26226-2-git-send-email-b.brezillon@overkiz.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org + Huang Hi Boris, On Wed, Jan 08, 2014 at 03:21:56PM +0100, Boris BREZILLON wrote: > The Hynix nand flashes store their ECC requirements in byte 4 of its id > (returned on READ ID command). > > Signed-off-by: Boris BREZILLON I haven't verified yet (perhaps Huang can confirm?), but this may be similar to a patch Huang submitted recently. In his case, we found that this table is actually quite unreliable and is likely hard to maintain. Why do you need this ECC information, for my reference? Brian -- 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/