From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E568C1975A for ; Thu, 12 Mar 2020 21:33:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6BFDC205F4 for ; Thu, 12 Mar 2020 21:33:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726767AbgCLVdV (ORCPT ); Thu, 12 Mar 2020 17:33:21 -0400 Received: from relay10.mail.gandi.net ([217.70.178.230]:35521 "EHLO relay10.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726579AbgCLVdV (ORCPT ); Thu, 12 Mar 2020 17:33:21 -0400 Received: from localhost.localdomain (unknown [91.224.148.103]) (Authenticated sender: miquel.raynal@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 7B96F240003; Thu, 12 Mar 2020 21:33:17 +0000 (UTC) From: Miquel Raynal To: shiva.linuxworks@gmail.com, Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Boris Brezillon , Chuanhong Guo , Frieder Schrempf , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Shivamurthy Shastri Subject: Re: [PATCH v7 4/6] mtd: spinand: micron: identify SPI NAND device with Continuous Read mode Date: Thu, 12 Mar 2020 22:33:16 +0100 Message-Id: <20200312213316.7311-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200311175735.2007-5-sshivamurthy@micron.com> References: MIME-Version: 1.0 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: 0bc68af9137dc3f30b161de4ce546c7799f88d1e Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2020-03-11 at 17:57:33 UTC, shiva.linuxworks@gmail.com wrote: > From: Shivamurthy Shastri > > Add SPINAND_HAS_CR_FEAT_BIT flag to identify the SPI NAND device with > the Continuous Read mode. > > Some of the Micron SPI NAND devices have the "Continuous Read" feature > enabled by default, which does not fit the subsystem needs. > > In this mode, the READ CACHE command doesn't require the starting column > address. The device always output the data starting from the first > column of the cache register, and once the end of the cache register > reached, the data output continues through the next page. With the > continuous read mode, it is possible to read out the entire block using > a single READ command, and once the end of the block reached, the output > pins become High-Z state. However, during this mode the read command > doesn't output the OOB area. > > Hence, we disable the feature at probe time. > > Signed-off-by: Shivamurthy Shastri > Reviewed-by: Boris Brezillon Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks. Miquel