From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 22 Jan 2014 17:49:06 -0800 From: Brian Norris To: Boris BREZILLON 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> Cc: devicetree@vger.kernel.org, Russell King , linux-doc@vger.kernel.org, dev@linux-sunxi.org, linux-kernel@vger.kernel.org, Huang Shijie , linux-mtd@lists.infradead.org, Rob Landley , Grant Likely , Maxime Ripard , David Woodhouse , linux-arm-kernel@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , + 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