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=-13.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,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 795B6C433E1 for ; Thu, 27 Aug 2020 08:53:31 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 C049A206F0 for ; Thu, 27 Aug 2020 08:53:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ds6UrS5a" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C049A206F0 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=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type: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:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=i9tB7uJxA3Lg/P2XER1FZjkNxNeip6gBIoW8evdHc/M=; b=Ds6UrS5aOmieh42ASkzU46qX5M Tl5LN6aFlZydfFnWPiF2P3PHBd70Tqx6NjNAjzPTXvNq+koYE52bcQKNcq/kKcIkcA05McLBoJwUG R6BAcgE2Ih5kspOnZZdj65Sj94D8QLsJOy9GPhOEIY/5yi39jjgzsYca0nWwXp+FrdIkSWvenF7VH nlfYWF33JKwfBmhRs/zZtqUue9cVeMiSOAUbekkO8VOc+zBMWSBblC09NNbAOHGYQ1MmknBDolL2e KZVTbBRePrxOBd+T0cAsFgROBvNRcsSS2EVYl+55ER/acm/kgDpdoidZfqRpTk7sJpBgavyVBXV/2 vusRMfnA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kBDeV-0005aK-FL; Thu, 27 Aug 2020 08:52:59 +0000 Received: from relay5-d.mail.gandi.net ([217.70.183.197]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kBDe1-0005Pc-3B for linux-mtd@lists.infradead.org; Thu, 27 Aug 2020 08:52:30 +0000 X-Originating-IP: 77.205.47.153 Received: from xps13.clients.t25.sncf (153.47.205.77.rev.sfr.net [77.205.47.153]) (Authenticated sender: miquel.raynal@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id EB06A1C0006; Thu, 27 Aug 2020 08:52:26 +0000 (UTC) From: Miquel Raynal To: Richard Weinberger , Vignesh Raghavendra , Tudor Ambarus , Subject: [PATCH v13 07/20] dt-bindings: mtd: Document boolean NAND ECC properties Date: Thu, 27 Aug 2020 10:51:55 +0200 Message-Id: <20200827085208.16276-8-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200827085208.16276-1-miquel.raynal@bootlin.com> References: <20200827085208.16276-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200827_045229_375733_B6FB5876 X-CRM114-Status: GOOD ( 10.47 ) 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: , 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 Document nand-use-soft-ecc-engine and nand-no-ecc-engine properties. The former is here to force software correction, the latter prevents any correction to happen. These properties (along with nand-ecc-engine) are supposed to be more accurate than the current nand-ecc-modes wich is very misleading and very often people think it is mandatory while the core should be relied upon to decide which correction to handle. nand-ecc-mode was already inacurate, but it becomes totally problematic with setups where there are several hardware engines. Signed-off-by: Miquel Raynal Reviewed-by: Rob Herring --- .../devicetree/bindings/mtd/nand-controller.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/nand-controller.yaml b/Documentation/devicetree/bindings/mtd/nand-controller.yaml index ba7f8e4db5a5..e79bb6d2c108 100644 --- a/Documentation/devicetree/bindings/mtd/nand-controller.yaml +++ b/Documentation/devicetree/bindings/mtd/nand-controller.yaml @@ -68,6 +68,14 @@ patternProperties: 3/ The ECC engine is external, in this case the phandle should reference the specific ECC engine node. + nand-use-soft-ecc-engine: + type: boolean + description: Use a software ECC engine. + + nand-no-ecc-engine: + type: boolean + description: Do not use any ECC correction. + nand-ecc-placement: allOf: - $ref: /schemas/types.yaml#/definitions/string -- 2.20.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/