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 320F8C433DF for ; Sun, 24 May 2020 19:22:12 +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 DC36020787 for ; Sun, 24 May 2020 19:22:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Mg6gO1hM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC36020787 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=Id83gDcgmTnqWD2yw/MC6/Wc3Cb/FBy0lcyCrVx8heU=; b=Mg6gO1hMfH5Vko /p9AnZymtZfP7wiWeIV//S48hOEfU1X+15gzh4DkRTsovjKeKnuNRkijlA2cNZaK3PEnTiaZlr5Ip U7Vzbio8a05dnCJ3/gGq3NCwUDAlUVoTVNIi7xH6C2gya0AxH/pbcCArtpyITEli1AFVGsMaFbXHQ caC1SoYAeNI9qOcCK8g2R76w+pkW7Knv1MZ/oQd33fzZFR3w67sOuA8/3tnPwYAfPLewfvng+6Mtp oPJrlBETG+FQPvk7bNGhe6LkRNy2djK7zN8p2wmE/4lt6Mebpeskag/UNIYUea+PZm8ETd2AkKUNk I/+RcXkQySUr9y6ZKhsQ==; 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 1jcwC8-0000D8-HE; Sun, 24 May 2020 19:22:00 +0000 Received: from relay11.mail.gandi.net ([217.70.178.231]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jcvzp-00075m-G5 for linux-mtd@lists.infradead.org; Sun, 24 May 2020 19:09:19 +0000 Received: from localhost.localdomain (unknown [91.224.148.103]) (Authenticated sender: miquel.raynal@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id D1ACA100003; Sun, 24 May 2020 19:09:13 +0000 (UTC) From: Miquel Raynal To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Tudor Ambarus , linux-mtd@lists.infradead.org Subject: Re: [PATCH v5 8/8] mtd: rawnand: arasan: Support the hardware BCH ECC engine Date: Sun, 24 May 2020 21:09:12 +0200 Message-Id: <20200524190912.8833-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200519074549.23673-9-miquel.raynal@bootlin.com> References: MIME-Version: 1.0 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: 5e89f1bc1d4b6234193412f677b0049cab2b6345 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200524_120917_727918_58901E73 X-CRM114-Status: UNSURE ( 8.31 ) 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: Michal Simek , Boris Brezillon , Naga Sureshkumar Relli , Thomas Petazzoni 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 Tue, 2020-05-19 at 07:45:49 UTC, Miquel Raynal wrote: > Add support for the hardware ECC BCH engine. > > Please mind that this engine has an important limitation: > BCH implementation does not inform the user when an uncorrectable ECC > error occurs. To workaround this, we avoid using the hardware engine > in the read path and do the computation with the software BCH > implementation, which is faster than mixing hardware (for correction) > and software (for verification). > > Signed-off-by: Miquel Raynal > Reviewed-by: Boris Brezillon Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next. Miquel ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/