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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 31F07C1975A for ; Thu, 12 Mar 2020 21:33:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 00AAB205F4 for ; Thu, 12 Mar 2020 21:33:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="gyIdqukz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 00AAB205F4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=J/X1fZc/a+r7zo7qPjxy9phcYWkZ2P7jOXxgQHF1xSQ=; b=gyIdqukzORFZ5d SXxKjwHVqBQk16bU13G1H4wpcuRdpAzlvrhkvwZHIG2q2IiwOBMC5LYAsAPRZcZ4z6nyauGe77mom qNNwRfGQcNuv6YtTDN+FzVL7NZAoAvK77EeFIbTA/xLszpQEKS4EYzF2IO9U3swcNUqO22RFppvIH S+9IabTJOTNdPyhVBJ9Bp+usmXulxhPRZ1mvXGzTeCNVrAcEJGf2sU0920YYjHVGQfNhf/5/WvHam 6/ginUZNViklz+9bJ8KSKp+tq8y7pbZliu1M5Py4HiFQoTpL1G4FGiSjThGmHxYtxvPKsmb892l3c yhMEKUa/HBrCYLdoxgtA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jCVSK-0005mV-Vz; Thu, 12 Mar 2020 21:33:28 +0000 Received: from relay10.mail.gandi.net ([217.70.178.230]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jCVSE-0005cv-DK for linux-mtd@lists.infradead.org; Thu, 12 Mar 2020 21:33:24 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200312_143322_603010_9CBB57B2 X-CRM114-Status: UNSURE ( 9.79 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Shivamurthy Shastri Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.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 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/