From patchwork Fri Oct 28 17:51:25 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Jarzmik X-Patchwork-Id: 122457 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:4978:20e::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id AFF2FB6F72 for ; Sat, 29 Oct 2011 04:53:42 +1100 (EST) Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1RJqc8-0001vO-O1; Fri, 28 Oct 2011 17:53:09 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1RJqc8-00077W-99; Fri, 28 Oct 2011 17:53:08 +0000 Received: from smtp6-g21.free.fr ([212.27.42.6]) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1RJqbo-00070f-Aw for linux-mtd@lists.infradead.org; Fri, 28 Oct 2011 17:52:50 +0000 Received: from beldin.local (unknown [82.243.122.54]) by smtp6-g21.free.fr (Postfix) with ESMTP id EFB6682307; Fri, 28 Oct 2011 19:52:42 +0200 (CEST) From: Robert Jarzmik To: dwmw2@infradead.org, dedekind1@gmail.com, mikedunn@newsguy.com Subject: [PATCH 06/13] mtd/docg3: add OOB layout to mtdinfo Date: Fri, 28 Oct 2011 19:51:25 +0200 Message-Id: <1319824292-11085-7-git-send-email-robert.jarzmik@free.fr> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1319824292-11085-1-git-send-email-robert.jarzmik@free.fr> References: <1319824292-11085-1-git-send-email-robert.jarzmik@free.fr> X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20111028_135249_043294_E5DFFD20 X-CRM114-Status: UNSURE ( 9.80 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.27.42.6 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (robert.jarzmik[at]free.fr) 0.0 T_TO_NO_BRKTS_FREEMAIL To: misformatted and free email service Cc: Robert Jarzmik , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-mtd-bounces@lists.infradead.org Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Add OOB layout description for docg3, so that userspace can use this information to setup the data for write_oob(). Signed-off-by: Robert Jarzmik --- drivers/mtd/devices/docg3.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c index 709d886..26fc135 100644 --- a/drivers/mtd/devices/docg3.c +++ b/drivers/mtd/devices/docg3.c @@ -63,6 +63,18 @@ * */ +/** + * struct docg3_oobinfo - DiskOnChip G3 OOB layout + * @eccbytes: 8 bytes are used (1 for Hamming ECC, 7 for BCH ECC) + * @eccpos: ecc positions (byte 7 is Hamming ECC, byte 8-14 are BCH ECC) + * @oobfree: free pageinfo bytes (byte 0 until byte 6, byte 15 + */ +static struct nand_ecclayout docg3_oobinfo = { + .eccbytes = 8, + .eccpos = {7, 8, 9, 10, 11, 12, 13, 14}, + .oobfree = {{0, 7}, {15, 1} } +}; + static inline u8 doc_readb(struct docg3 *docg3, u16 reg) { u8 val = readb(docg3->base + reg); @@ -977,6 +989,7 @@ static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) mtd->write_oob = NULL; mtd->sync = NULL; mtd->block_isbad = doc_block_isbad; + mtd->ecclayout = &docg3_oobinfo; } /**