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mtd: nand: Move Macronix specific initialization in nand_macronix.c

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Move Macronix specific initialization logic into nand_macronix.c. This
is part of the "separate vendor specific code from core" cleanup
process.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Boris Brezillon 2016-06-08 10:43:26 +02:00
parent 229204da53
commit 3b5206f4be
5 changed files with 33 additions and 12 deletions
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1
drivers/mtd/nand/Makefile
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@ -63,6 +63,7 @@ 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_amd.o
nand-objs += nand_hynix.o
nand-objs += nand_macronix.o
nand-objs += nand_micron.o
nand-objs += nand_samsung.o
nand-objs += nand_toshiba.o

11
drivers/mtd/nand/nand_base.c
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@ -3842,23 +3842,12 @@ static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
static void nand_decode_bbm_options(struct nand_chip *chip)
{
struct mtd_info *mtd = nand_to_mtd(chip);
u8 *id_data = chip->id.data;
int maf_id = id_data[0];
/* Set the bad block position */
if (mtd->writesize > 512 || (chip->options & NAND_BUSWIDTH_16))
chip->badblockpos = NAND_LARGE_BADBLOCK_POS;
else
chip->badblockpos = NAND_SMALL_BADBLOCK_POS;
/*
* Bad block marker is stored in the last page of each block on Samsung
* and Hynix MLC devices; stored in first two pages of each block on
* 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_MACRONIX)
chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
}
static inline bool is_full_id_nand(struct nand_flash_dev *type)

2
drivers/mtd/nand/nand_ids.c
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@ -180,7 +180,7 @@ static const struct nand_manufacturer nand_manufacturers[] = {
{NAND_MFR_HYNIX, "Hynix", &hynix_nand_manuf_ops},
{NAND_MFR_MICRON, "Micron", &micron_nand_manuf_ops},
{NAND_MFR_AMD, "AMD/Spansion", &amd_nand_manuf_ops},
{NAND_MFR_MACRONIX, "Macronix"},
{NAND_MFR_MACRONIX, "Macronix", &macronix_nand_manuf_ops},
{NAND_MFR_EON, "Eon"},
{NAND_MFR_SANDISK, "SanDisk"},
{NAND_MFR_INTEL, "Intel"},

30
drivers/mtd/nand/nand_macronix.c Normal file
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@ -0,0 +1,30 @@
/*
* Copyright (C) 2017 Free Electrons
* Copyright (C) 2017 NextThing Co
*
* Author: Boris Brezillon <boris.brezillon@free-electrons.com>
*
* 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 <linux/mtd/nand.h>
static int macronix_nand_init(struct nand_chip *chip)
{
if (nand_is_slc(chip))
chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
return 0;
}
const struct nand_manufacturer_ops macronix_nand_manuf_ops = {
.init = macronix_nand_init,
};

1
include/linux/mtd/nand.h
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@ -1099,6 +1099,7 @@ extern const struct nand_manufacturer_ops samsung_nand_manuf_ops;
extern const struct nand_manufacturer_ops hynix_nand_manuf_ops;
extern const struct nand_manufacturer_ops micron_nand_manuf_ops;
extern const struct nand_manufacturer_ops amd_nand_manuf_ops;
extern const struct nand_manufacturer_ops macronix_nand_manuf_ops;
int nand_default_bbt(struct mtd_info *mtd);
int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);