From patchwork Mon Mar 18 11:18:46 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Shijie X-Patchwork-Id: 228472 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 TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id E0F622C0129 for ; Mon, 18 Mar 2013 23:28:15 +1100 (EST) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UHZ9W-0006Rg-Vz; Mon, 18 Mar 2013 12:26:58 +0000 Received: from mail-db8lp0187.outbound.messaging.microsoft.com ([213.199.154.187] helo=db8outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UHY97-0008Mx-Ph for linux-mtd@lists.infradead.org; Mon, 18 Mar 2013 11:22:32 +0000 Received: from mail215-db8-R.bigfish.com (10.174.8.251) by DB8EHSOBE027.bigfish.com (10.174.4.90) with Microsoft SMTP Server id 14.1.225.23; Mon, 18 Mar 2013 11:22:25 +0000 Received: from mail215-db8 (localhost [127.0.0.1]) by mail215-db8-R.bigfish.com (Postfix) with ESMTP id E30AB42009E; Mon, 18 Mar 2013 11:22:25 +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: 5 X-BigFish: VS5(z616jzzz1f42h1ee6h1de0h1202h1e76h1d1ah1d2ah1082kzz8275bhz2dh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1155h) Received: from mail215-db8 (localhost.localdomain [127.0.0.1]) by mail215-db8 (MessageSwitch) id 1363605744375005_10777; Mon, 18 Mar 2013 11:22:24 +0000 (UTC) Received: from DB8EHSMHS024.bigfish.com (unknown [10.174.8.234]) by mail215-db8.bigfish.com (Postfix) with ESMTP id 4DCF1300048; Mon, 18 Mar 2013 11:22:24 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by DB8EHSMHS024.bigfish.com (10.174.4.34) with Microsoft SMTP Server (TLS) id 14.1.225.23; Mon, 18 Mar 2013 11:22:24 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.2.328.11; Mon, 18 Mar 2013 11:22:22 +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 r2IBM638021313; Mon, 18 Mar 2013 04:22:20 -0700 From: Huang Shijie To: Subject: [PATCH 03/11] mtd: get the ECC info from the parameter page for ONFI nand Date: Mon, 18 Mar 2013 19:18:46 +0800 Message-ID: <1363605534-24776-4-git-send-email-b32955@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1363605534-24776-1-git-send-email-b32955@freescale.com> References: <1363605534-24776-1-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-20130318_072230_032306_70146B7A X-CRM114-Status: GOOD ( 10.56 ) X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [213.199.154.187 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Huang Shijie , computersforpeace@gmail.com, linux-mtd@lists.infradead.org, matthieu.castet@parrot.com, 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From the onfi spec, we can just get the ECC info from the @ecc_bits field of the parameter page. Signed-off-by: Huang Shijie --- drivers/mtd/nand/nand_base.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 49de9da..461fbc8 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2878,6 +2878,11 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, if (le16_to_cpu(p->features) & 1) *busw = NAND_BUSWIDTH_16; + if (p->ecc_bits != 0xff) { + chip->ecc_strength = p->ecc_bits; + chip->ecc_size = 512; + } + pr_info("ONFI flash detected\n"); return 1; }