Message ID | 1368607606-4344-2-git-send-email-b32955@freescale.com |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 0BF772C00A3 for <incoming@patchwork.ozlabs.org>; Wed, 15 May 2013 22:18:15 +1000 (EST) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UcXdM-00023Y-Vc; Wed, 15 May 2013 09:04:30 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UcXc3-0002pD-V5; Wed, 15 May 2013 09:03:07 +0000 Received: from va3ehsobe006.messaging.microsoft.com ([216.32.180.16] helo=va3outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UcXbx-0002n7-Ku for linux-mtd@lists.infradead.org; Wed, 15 May 2013 09:03:02 +0000 Received: from mail79-va3-R.bigfish.com (10.7.14.245) by VA3EHSOBE008.bigfish.com (10.7.40.28) with Microsoft SMTP Server id 14.1.225.23; Wed, 15 May 2013 09:02:52 +0000 Received: from mail79-va3 (localhost [127.0.0.1]) by mail79-va3-R.bigfish.com (Postfix) with ESMTP id 5671B1601A0; Wed, 15 May 2013 09:02:52 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 6 X-BigFish: VS6(z3121kzzz1f42h1ee6h1de0h1fdah1202h1e76h1d1ah1d2ah1fc6h1082kzz8275bhz2dh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1d0ch1d2eh1d3fh1155h) Received: from mail79-va3 (localhost.localdomain [127.0.0.1]) by mail79-va3 (MessageSwitch) id 136860857065320_7703; Wed, 15 May 2013 09:02:50 +0000 (UTC) Received: from VA3EHSMHS016.bigfish.com (unknown [10.7.14.231]) by mail79-va3.bigfish.com (Postfix) with ESMTP id 0AE14120070; Wed, 15 May 2013 09:02:50 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by VA3EHSMHS016.bigfish.com (10.7.99.26) with Microsoft SMTP Server (TLS) id 14.1.225.23; Wed, 15 May 2013 09:02:39 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-005.039d.mgd.msft.net (10.84.1.17) with Microsoft SMTP Server (TLS) id 14.2.328.11; Wed, 15 May 2013 09:03:00 +0000 Received: from shlinux2.ap.freescale.net (shlinux2.ap.freescale.net [10.192.224.44]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id r4F92Upm023150; Wed, 15 May 2013 02:02:33 -0700 From: Huang Shijie <b32955@freescale.com> To: <dwmw2@infradead.org> Subject: [PATCH v2 1/4] mtd: add a new field to mtd_info{} Date: Wed, 15 May 2013 16:46:43 +0800 Message-ID: <1368607606-4344-2-git-send-email-b32955@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1368607606-4344-1-git-send-email-b32955@freescale.com> References: <1368607606-4344-1-git-send-email-b32955@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130515_050301_729252_AFA53C35 X-CRM114-Status: GOOD ( 12.64 ) X-Spam-Score: -4.2 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [216.32.180.16 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Huang Shijie <b32955@freescale.com>, computersforpeace@gmail.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, dedekind1@gmail.com X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux MTD discussion mailing list <linux-mtd.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-mtd/> List-Post: <mailto:linux-mtd@lists.infradead.org> List-Help: <mailto:linux-mtd-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org> Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org |
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index a5cf4e8..effdd41 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -173,6 +173,9 @@ struct mtd_info { /* ECC layout structure pointer - read only! */ struct nand_ecclayout *ecclayout; + /* the ecc step size. */ + unsigned int ecc_step; + /* max number of correctible bit errors per ecc step */ unsigned int ecc_strength;
In order to implement the NAND boot for some Freescale's chips, such as imx23/imx28/imx50/imx6, we use a tool (called kobs-ng) to burn the uboot and some metadata to nand chip. And the ROM code will use the metadata to configrate the BCH, and to find the uboot. The ECC information(ecc step size, ecc strength) which is used to configrate the BCH is part of the metadata. The kobs-ng can gets the ecc strength from the sys node /sys/*/ecc_strength now. But it can not gets the ecc step size. This patch adds a new field to store the ecc step size in mtd_info{}, and it makes preparation for the next patches. Signed-off-by: Huang Shijie <b32955@freescale.com> --- include/linux/mtd/mtd.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)