From patchwork Mon Jan 9 10:04:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 712557 X-Patchwork-Delegate: boris.brezillon@free-electrons.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2001:1868:205::9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3txrYl3mQJz9sCX for ; Mon, 9 Jan 2017 21:12:27 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cQWw8-0002dZ-K2; Mon, 09 Jan 2017 10:12:20 +0000 Received: from mail.free-electrons.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cQWpA-0000E3-WB for linux-mtd@lists.infradead.org; Mon, 09 Jan 2017 10:05:29 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id 1B5DA20789; Mon, 9 Jan 2017 11:04:31 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from bbrezillon.home (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.free-electrons.com (Postfix) with ESMTPSA id C5FA8206A9; Mon, 9 Jan 2017 11:04:30 +0100 (CET) From: Boris Brezillon To: Boris Brezillon , Richard Weinberger , linux-mtd@lists.infradead.org, David Woodhouse , Brian Norris , Marek Vasut , Cyrille Pitchen Subject: [PATCH v6 10/17] mtd: nand: Move Hynix specific init/detection logic in nand_hynix.c Date: Mon, 9 Jan 2017 11:04:17 +0100 Message-Id: <1483956264-3335-11-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1483956264-3335-1-git-send-email-boris.brezillon@free-electrons.com> References: <1483956264-3335-1-git-send-email-boris.brezillon@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170109_020509_617994_36453B86 X-CRM114-Status: GOOD ( 21.05 ) X-Spam-Score: -5.1 (-----) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-5.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -3.2 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksei Mamlin , Valdis.Kletnieks@vt.edu, Icenowy Zheng , linux-kernel@vger.kernel.org, Hans de Goede MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Move Hynix specific initialization and detection logic into nand_hynix.c. This is part of the "separate vendor specific code from core" cleanup process. Signed-off-by: Boris Brezillon Acked-by: Richard Weinberger --- drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/nand_base.c | 114 +++++++++++------------------------------- drivers/mtd/nand/nand_hynix.c | 84 +++++++++++++++++++++++++++++++ drivers/mtd/nand/nand_ids.c | 2 +- include/linux/mtd/nand.h | 1 + 5 files changed, 115 insertions(+), 87 deletions(-) create mode 100644 drivers/mtd/nand/nand_hynix.c diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index d4b90b0f879e..ddb2670d9767 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -61,4 +61,5 @@ obj-$(CONFIG_MTD_NAND_QCOM) += qcom_nandc.o obj-$(CONFIG_MTD_NAND_MTK) += mtk_nand.o mtk_ecc.o nand-objs := nand_base.o nand_bbt.o nand_timings.o nand_ids.o +nand-objs += nand_hynix.o nand-objs += nand_samsung.o diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 1c2253a0868c..3b15a1cd39bc 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3789,85 +3789,32 @@ void nand_decode_ext_id(struct nand_chip *chip) /* The 4th id byte is the important one */ extid = id_data[3]; + /* Calc pagesize */ + mtd->writesize = 1024 << (extid & 0x03); + extid >>= 2; + /* Calc oobsize */ + mtd->oobsize = (8 << (extid & 0x01)) * (mtd->writesize >> 9); + extid >>= 2; + /* Calc blocksize. Blocksize is multiples of 64KiB */ + mtd->erasesize = (64 * 1024) << (extid & 0x03); + extid >>= 2; + /* Get buswidth information */ + if (extid & 0x1) + chip->options |= NAND_BUSWIDTH_16; + /* - * Field definitions are in the following datasheets: - * Old style (4,5 byte ID): Samsung K9GAG08U0M (p.32) - * Hynix MLC (6 byte ID): Hynix H27UBG8T2B (p.22) - * - * Check for ID length, non-zero 6th byte, cell type, and Hynix/Samsung - * ID to decide what to do. + * Toshiba 24nm raw SLC (i.e., not BENAND) have 32B OOB per + * 512B page. For Toshiba SLC, we decode the 5th/6th byte as + * follows: + * - ID byte 6, bits[2:0]: 100b -> 43nm, 101b -> 32nm, + * 110b -> 24nm + * - ID byte 5, bit[7]: 1 -> BENAND, 0 -> raw SLC */ - 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; - } else { - /* Calc pagesize */ - mtd->writesize = 1024 << (extid & 0x03); - extid >>= 2; - /* Calc oobsize */ - mtd->oobsize = (8 << (extid & 0x01)) * - (mtd->writesize >> 9); - extid >>= 2; - /* Calc blocksize. Blocksize is multiples of 64KiB */ - mtd->erasesize = (64 * 1024) << (extid & 0x03); - extid >>= 2; - /* Get buswidth information */ - if (extid & 0x1) - chip->options |= NAND_BUSWIDTH_16; - - /* - * Toshiba 24nm raw SLC (i.e., not BENAND) have 32B OOB per - * 512B page. For Toshiba SLC, we decode the 5th/6th byte as - * follows: - * - ID byte 6, bits[2:0]: 100b -> 43nm, 101b -> 32nm, - * 110b -> 24nm - * - ID byte 5, bit[7]: 1 -> BENAND, 0 -> raw SLC - */ - if (id_len >= 6 && id_data[0] == NAND_MFR_TOSHIBA && - nand_is_slc(chip) && - (id_data[5] & 0x7) == 0x6 /* 24nm */ && - !(id_data[4] & 0x80) /* !BENAND */) { - mtd->oobsize = 32 * mtd->writesize >> 9; - } - - } + if (id_len >= 6 && id_data[0] == NAND_MFR_TOSHIBA && + nand_is_slc(chip) && + (id_data[5] & 0x7) == 0x6 /* 24nm */ && + !(id_data[4] & 0x80) /* !BENAND */) + mtd->oobsize = 32 * mtd->writesize >> 9; } EXPORT_SYMBOL_GPL(nand_decode_ext_id); @@ -3926,15 +3873,10 @@ static void nand_decode_bbm_options(struct nand_chip *chip) * Micron devices with 2KiB pages and on SLC Samsung, Hynix, Toshiba, * AMD/Spansion, and Macronix. All others scan only the first page. */ - if (!nand_is_slc(chip) && maf_id == NAND_MFR_HYNIX) - chip->bbt_options |= NAND_BBT_SCANLASTPAGE; - else if ((nand_is_slc(chip) && - (maf_id == NAND_MFR_HYNIX || - maf_id == NAND_MFR_TOSHIBA || - maf_id == NAND_MFR_AMD || - maf_id == NAND_MFR_MACRONIX)) || - (mtd->writesize == 2048 && - maf_id == NAND_MFR_MICRON)) + if ((nand_is_slc(chip) && + (maf_id == NAND_MFR_TOSHIBA || maf_id == NAND_MFR_AMD || + maf_id == NAND_MFR_MACRONIX)) || + (mtd->writesize == 2048 && maf_id == NAND_MFR_MICRON)) chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; } diff --git a/drivers/mtd/nand/nand_hynix.c b/drivers/mtd/nand/nand_hynix.c new file mode 100644 index 000000000000..fbd661688158 --- /dev/null +++ b/drivers/mtd/nand/nand_hynix.c @@ -0,0 +1,84 @@ +/* + * Copyright (C) 2017 Free Electrons + * Copyright (C) 2017 NextThing Co + * + * Author: Boris Brezillon + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include + +static void hynix_nand_decode_id(struct nand_chip *chip) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + + /* Hynix MLC (6 byte ID): Hynix H27UBG8T2B (p.22) */ + if (chip->id.len == 6 && !nand_is_slc(chip)) { + u8 tmp, extid = chip->id.data[3]; + + /* Extract pagesize */ + mtd->writesize = 2048 << (extid & 0x03); + extid >>= 2; + + /* Extract oobsize */ + switch (((extid >> 2) & 0x4) | (extid & 0x3)) { + 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; + } + + /* Extract blocksize */ + extid >>= 2; + 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; + } else { + nand_decode_ext_id(chip); + } +} + +static int hynix_nand_init(struct nand_chip *chip) +{ + if (!nand_is_slc(chip)) + chip->bbt_options |= NAND_BBT_SCANLASTPAGE; + else + chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + + return 0; +} + +const struct nand_manufacturer_ops hynix_nand_manuf_ops = { + .detect = hynix_nand_decode_id, + .init = hynix_nand_init, +}; diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c index 9209054310cf..3d0bcf1e1965 100644 --- a/drivers/mtd/nand/nand_ids.c +++ b/drivers/mtd/nand/nand_ids.c @@ -177,7 +177,7 @@ static const struct nand_manufacturer nand_manufacturers[] = { {NAND_MFR_NATIONAL, "National"}, {NAND_MFR_RENESAS, "Renesas"}, {NAND_MFR_STMICRO, "ST Micro"}, - {NAND_MFR_HYNIX, "Hynix"}, + {NAND_MFR_HYNIX, "Hynix", &hynix_nand_manuf_ops}, {NAND_MFR_MICRON, "Micron"}, {NAND_MFR_AMD, "AMD/Spansion"}, {NAND_MFR_MACRONIX, "Macronix"}, diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index d95f0a44bb47..a07ee03de4fd 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -1108,6 +1108,7 @@ nand_manufacturer_name(const struct nand_manufacturer *manufacturer) extern struct nand_flash_dev nand_flash_ids[]; extern const struct nand_manufacturer_ops samsung_nand_manuf_ops; +extern const struct nand_manufacturer_ops hynix_nand_manuf_ops; int nand_default_bbt(struct mtd_info *mtd); int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);