From patchwork Fri Jan 3 08:08:36 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Shijie X-Patchwork-Id: 306507 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 8C7BA2C00A2 for ; Fri, 3 Jan 2014 20:12:52 +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 1Vz0Kp-0000Xx-4S; Fri, 03 Jan 2014 08:42:27 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vz0Kf-0001ip-8G; Fri, 03 Jan 2014 08:42:17 +0000 Received: from co9ehsobe003.messaging.microsoft.com ([207.46.163.26] helo=co9outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vz0KU-0001fU-5j for linux-mtd@lists.infradead.org; Fri, 03 Jan 2014 08:42:10 +0000 Received: from mail191-co9-R.bigfish.com (10.236.132.252) by CO9EHSOBE036.bigfish.com (10.236.130.99) with Microsoft SMTP Server id 14.1.225.22; Fri, 3 Jan 2014 08:41:44 +0000 Received: from mail191-co9 (localhost [127.0.0.1]) by mail191-co9-R.bigfish.com (Postfix) with ESMTP id 3EF133001CF; Fri, 3 Jan 2014 08:41:44 +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(zzzz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah1fc6h1082kzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h2327h2336h1155h) Received: from mail191-co9 (localhost.localdomain [127.0.0.1]) by mail191-co9 (MessageSwitch) id 1388738502402217_12173; Fri, 3 Jan 2014 08:41:42 +0000 (UTC) Received: from CO9EHSMHS011.bigfish.com (unknown [10.236.132.240]) by mail191-co9.bigfish.com (Postfix) with ESMTP id 5331D840047; Fri, 3 Jan 2014 08:41:42 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO9EHSMHS011.bigfish.com (10.236.130.21) with Microsoft SMTP Server (TLS) id 14.16.227.3; Fri, 3 Jan 2014 08:41:38 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.3.158.2; Fri, 3 Jan 2014 08:41:37 +0000 Received: from shlinux2.ap.freescale.net (shlinux2.ap.freescale.net [10.192.224.44]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id s038fTLN017432; Fri, 3 Jan 2014 01:41:35 -0700 From: Huang Shijie To: Subject: [PATCH v3 1/3] mtd: nand: add a helper to parse the Hynix nand Date: Fri, 3 Jan 2014 16:08:36 +0800 Message-ID: <1388736518-5934-2-git-send-email-b32955@freescale.com> X-Mailer: git-send-email 1.7.2.rc3 In-Reply-To: <1388736518-5934-1-git-send-email-b32955@freescale.com> References: <1388736518-5934-1-git-send-email-b32955@freescale.com> 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-20140103_034206_512626_51CCD2CF X-CRM114-Status: GOOD ( 14.82 ) X-Spam-Score: -2.9 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [207.46.163.26 listed in list.dnswl.org] 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 This patch adds a nand_parse_hynix() to parse the Hynix MLC nand whose ID length is 6 bytes. This patch makes preparations for parsing other Hynix nand. Signed-off-by: Huang Shijie --- drivers/mtd/nand/nand_base.c | 89 +++++++++++++++++++++++------------------ 1 files changed, 50 insertions(+), 39 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 4ce8007..d6b7dc3 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3198,6 +3198,55 @@ static int nand_get_bits_per_cell(u8 cellinfo) return bits + 1; } +/* Parse for the Hynix MLC nand which has 6-bytes ID */ +static void nand_parse_hynix(struct mtd_info *mtd, struct nand_chip *chip, + u8 id_data[8], int *busw) +{ + int extid = id_data[3]; + unsigned int tmp; + + /* Calc pagesize */ + mtd->writesize = 2048 << (extid & 0x03); + extid >>= 2; + + /* Calc oobsize */ + switch (((extid >> 2) & 0x04) | (extid & 0x03)) { + case 0: + mtd->oobsize = 128; + break; + case 1: + mtd->oobsize = 224; + break; + case 2: + mtd->oobsize = 448; + break; + case 3: + mtd->oobsize = 64; + break; + case 4: + mtd->oobsize = 32; + break; + case 5: + mtd->oobsize = 16; + break; + default: + mtd->oobsize = 640; + break; + } + extid >>= 2; + + /* Calc blocksize */ + tmp = ((extid >> 1) & 0x04) | (extid & 0x03); + if (tmp < 0x03) + mtd->erasesize = (128 * 1024) << tmp; + else if (tmp == 0x03) + mtd->erasesize = 768 * 1024; + else + mtd->erasesize = (64 * 1024) << tmp; + + *busw = 0; +} + /* * Many new NAND share similar device ID codes, which represent the size of the * chip. The rest of the parameters must be decoded according to generic or @@ -3259,45 +3308,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip, *busw = 0; } else if (id_len == 6 && id_data[0] == NAND_MFR_HYNIX && !nand_is_slc(chip)) { - unsigned int tmp; - - /* Calc pagesize */ - mtd->writesize = 2048 << (extid & 0x03); - extid >>= 2; - /* Calc oobsize */ - switch (((extid >> 2) & 0x04) | (extid & 0x03)) { - case 0: - mtd->oobsize = 128; - break; - case 1: - mtd->oobsize = 224; - break; - case 2: - mtd->oobsize = 448; - break; - case 3: - mtd->oobsize = 64; - break; - case 4: - mtd->oobsize = 32; - break; - case 5: - mtd->oobsize = 16; - break; - default: - mtd->oobsize = 640; - break; - } - extid >>= 2; - /* Calc blocksize */ - tmp = ((extid >> 1) & 0x04) | (extid & 0x03); - if (tmp < 0x03) - mtd->erasesize = (128 * 1024) << tmp; - else if (tmp == 0x03) - mtd->erasesize = 768 * 1024; - else - mtd->erasesize = (64 * 1024) << tmp; - *busw = 0; + nand_parse_hynix(mtd, chip, id_data, busw); } else { /* Calc pagesize */ mtd->writesize = 1024 << (extid & 0x03);