From patchwork Wed Dec 25 09:18:55 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Shijie X-Patchwork-Id: 305113 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from casper.infradead.org (unknown [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 7F0B22C009B for ; Wed, 25 Dec 2013 20:50:48 +1100 (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 1Vvl6j-0002sV-9R; Wed, 25 Dec 2013 09:50:29 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vvl6h-0003jU-Lo; Wed, 25 Dec 2013 09:50:27 +0000 Received: from mail-db9lp0248.outbound.messaging.microsoft.com ([213.199.154.248] helo=db9outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vvl6f-0003iE-E0 for linux-mtd@lists.infradead.org; Wed, 25 Dec 2013 09:50:26 +0000 Received: from mail99-db9-R.bigfish.com (10.174.16.245) by DB9EHSOBE032.bigfish.com (10.174.14.95) with Microsoft SMTP Server id 14.1.225.22; Wed, 25 Dec 2013 09:49:56 +0000 Received: from mail99-db9 (localhost [127.0.0.1]) by mail99-db9-R.bigfish.com (Postfix) with ESMTP id C505F120074; Wed, 25 Dec 2013 09:49:56 +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: 3 X-BigFish: VS3(zzzz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah1fc6h1082kzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dc1h1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h2327h2336h1155h) Received: from mail99-db9 (localhost.localdomain [127.0.0.1]) by mail99-db9 (MessageSwitch) id 1387964994888418_32544; Wed, 25 Dec 2013 09:49:54 +0000 (UTC) Received: from DB9EHSMHS017.bigfish.com (unknown [10.174.16.236]) by mail99-db9.bigfish.com (Postfix) with ESMTP id D4184380047; Wed, 25 Dec 2013 09:49:54 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by DB9EHSMHS017.bigfish.com (10.174.14.27) with Microsoft SMTP Server (TLS) id 14.16.227.3; Wed, 25 Dec 2013 09:49:54 +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 14.3.158.2; Wed, 25 Dec 2013 09:49:52 +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 rBP9nnkF003617; Wed, 25 Dec 2013 02:49:50 -0700 From: Huang Shijie To: Subject: [PATCH] mtd: nand: add support for Samsung K9LCG08U0B Date: Wed, 25 Dec 2013 17:18:55 +0800 Message-ID: <1387963135-22142-1-git-send-email-b32955@freescale.com> X-Mailer: git-send-email 1.7.2.rc3 MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-FOPE-CONNECTOR: Id%0$Dn%FREESCALE.MAIL.ONMICROSOFT.COM$RO%1$TLS%0$FQDN%$TlsDn% X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131225_045025_599299_6B072A43 X-CRM114-Status: UNSURE ( 9.60 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.6 (/) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-0.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- 1.3 UNRESOLVED_TEMPLATE Headers contain an unresolved template -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 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 Assume that: tmp = ((extid >> 2) & 0x04) | (extid & 0x03)); From the K9LCG08U0B's datasheet, we know that: the oob size is 640 when tmp is 6; the oob size is 1024 when tmp is 7; Signed-off-by: Huang Shijie --- drivers/mtd/nand/nand_base.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ce4dec7..0d113cc 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3242,9 +3242,11 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip, mtd->oobsize = 512; break; case 6: - default: /* Other cases are "reserved" (unknown) */ mtd->oobsize = 640; break; + case 7: + mtd->oobsize = SZ_1K; + break; } extid >>= 2; /* Calc blocksize */