Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752770AbbHTUiW (ORCPT ); Thu, 20 Aug 2015 16:38:22 -0400 Received: from mail-pd0-f177.google.com ([209.85.192.177]:34402 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751761AbbHTUiU (ORCPT ); Thu, 20 Aug 2015 16:38:20 -0400 Date: Thu, 20 Aug 2015 13:38:15 -0700 From: Brian Norris To: Marek Vasut Cc: Viet Nga Dao , "linux-mtd@lists.infradead.org" , David Woodhouse , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , nga_chi86 Subject: Re: [PATCH] [PATCH v5] mtd:spi-nor: Add Altera Quad SPI Driver Message-ID: <20150820203815.GF74600@google.com> References: <1440053705-3836-1-git-send-email-vndao@altera.com> <201508201052.47502.marex@denx.de> <201508201142.18586.marex@denx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201508201142.18586.marex@denx.de> 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 Content-Length: 852 Lines: 17 On Thu, Aug 20, 2015 at 11:42:18AM +0200, Marek Vasut wrote: > On Thursday, August 20, 2015 at 11:18:14 AM, Viet Nga Dao wrote: > > You might misunderstand the hardware problem i mention here. This soft > > IP controller is able to provide the ID for our Altera EPCS/EPCQ flash > > chips, which are non JEDEC chips. As from EPCQ device data sheet > > (https://www.altera.com/content/dam/altera-www/global/en_US/pdfs/literature > > /hb/cfg/cfg_cf52012.pdf), the device ID is 8 bit data. > > So what exactly is the output of READID instruction followed by 6 Byte read > on an EPCQ chip? +1 to this question -- 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/