From: Boris Brezillon <boris.brezillon@free-electrons.com>
To: Boris Brezillon <boris.brezillon@free-electrons.com>,
Richard Weinberger <richard@nod.at>,
linux-mtd@lists.infradead.org
Cc: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Marek Vasut <marek.vasut@gmail.com>,
Cyrille Pitchen <cyrille.pitchen@atmel.com>,
Icenowy Zheng <icenowy@aosc.xyz>,
Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org
Subject: [PATCH v4 11/15] mtd: nand: move AMD/Spansion specific init/detection logic in nand_amd.c
Date: Tue, 3 Jan 2017 14:01:31 +0100 [thread overview]
Message-ID: <1483448495-31607-12-git-send-email-boris.brezillon@free-electrons.com> (raw)
In-Reply-To: <1483448495-31607-1-git-send-email-boris.brezillon@free-electrons.com>
Moving AMD/Spansion specific initialization/detection into nand_amd.c.
This is part of the "separate vendor specific code from core" cleanup
process.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/nand/Makefile | 1 +
drivers/mtd/nand/nand_amd.c | 48 ++++++++++++++++++++++++++++++++++++++++++++
drivers/mtd/nand/nand_base.c | 18 +----------------
drivers/mtd/nand/nand_ids.c | 3 ++-
4 files changed, 52 insertions(+), 18 deletions(-)
create mode 100644 drivers/mtd/nand/nand_amd.c
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 11d743155810..f48ddcc132bc 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -61,6 +61,7 @@ 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_amd.o
nand-objs += nand_hynix.o
nand-objs += nand_micron.o
nand-objs += nand_samsung.o
diff --git a/drivers/mtd/nand/nand_amd.c b/drivers/mtd/nand/nand_amd.c
new file mode 100644
index 000000000000..89901ab62fa2
--- /dev/null
+++ b/drivers/mtd/nand/nand_amd.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2013 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 void amd_nand_decode_id(struct nand_chip *chip)
+{
+ struct mtd_info *mtd = nand_to_mtd(chip);
+
+ nand_decode_ext_id(chip);
+
+ /*
+ * Check for Spansion/AMD ID + repeating 5th, 6th byte since
+ * some Spansion chips have erasesize that conflicts with size
+ * listed in nand_ids table.
+ * Data sheet (5 byte ID): Spansion S30ML-P ORNAND (p.39)
+ */
+ if (chip->id.data[4] != 0x00 && chip->id.data[5] == 0x00 &&
+ chip->id.data[6] == 0x00 && chip->id.data[7] == 0x00 &&
+ mtd->writesize == 512) {
+ mtd->erasesize = 128 * 1024;
+ mtd->erasesize <<= ((chip->id.data[3] & 0x03) << 1);
+ }
+}
+
+static int amd_nand_init(struct nand_chip *chip)
+{
+ if (nand_is_slc(chip))
+ chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
+
+ return 0;
+}
+
+const struct nand_manufacturer_ops amd_nand_manuf_ops = {
+ .detect = amd_nand_decode_id,
+ .init = amd_nand_init,
+};
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ebeaf2aadad9..751669302cf8 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3785,8 +3785,6 @@ EXPORT_SYMBOL_GPL(nand_decode_ext_id);
static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
{
struct mtd_info *mtd = nand_to_mtd(chip);
- u8 *id_data = chip->id.data;
- int maf_id = id_data[0];
mtd->erasesize = type->erasesize;
mtd->writesize = type->pagesize;
@@ -3794,19 +3792,6 @@ static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
/* All legacy ID NAND are small-page, SLC */
chip->bits_per_cell = 1;
-
- /*
- * Check for Spansion/AMD ID + repeating 5th, 6th byte since
- * some Spansion chips have erasesize that conflicts with size
- * listed in nand_ids table.
- * Data sheet (5 byte ID): Spansion S30ML-P ORNAND (p.39)
- */
- if (maf_id == NAND_MFR_AMD && id_data[4] != 0x00 && id_data[5] == 0x00
- && id_data[6] == 0x00 && id_data[7] == 0x00
- && mtd->writesize == 512) {
- mtd->erasesize = 128 * 1024;
- mtd->erasesize <<= ((id_data[3] & 0x03) << 1);
- }
}
/*
@@ -3832,8 +3817,7 @@ 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_AMD || maf_id == NAND_MFR_MACRONIX))
+ if (nand_is_slc(chip) && maf_id == NAND_MFR_MACRONIX)
chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
}
diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index 8e420f0925f8..bf07287ad01a 100644
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -173,6 +173,7 @@ extern const struct nand_manufacturer_ops toshiba_nand_manuf_ops;
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;
struct nand_manufacturers nand_manuf_ids[] = {
{NAND_MFR_TOSHIBA, "Toshiba", &toshiba_nand_manuf_ops},
@@ -184,7 +185,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
{NAND_MFR_STMICRO, "ST Micro"},
{NAND_MFR_HYNIX, "Hynix", &hynix_nand_manuf_ops},
{NAND_MFR_MICRON, "Micron", µn_nand_manuf_ops},
- {NAND_MFR_AMD, "AMD/Spansion"},
+ {NAND_MFR_AMD, "AMD/Spansion", &amd_nand_manuf_ops},
{NAND_MFR_MACRONIX, "Macronix"},
{NAND_MFR_EON, "Eon"},
{NAND_MFR_SANDISK, "SanDisk"},
--
2.7.4
next prev parent reply other threads:[~2017-01-03 13:20 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-03 13:01 [PATCH v4 00/15] mtd: nand: allow vendor specific detection/initialization Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 01/15] mtd: nand: get rid of the mtd parameter in all auto-detection functions Boris Brezillon
2017-01-04 14:53 ` Marek Vasut
2017-01-03 13:01 ` [PATCH v4 02/15] mtd: nand: store nand ID in struct nand_chip Boris Brezillon
2017-01-04 14:57 ` Marek Vasut
2017-01-03 13:01 ` [PATCH v4 03/15] mtd: nand: get rid of busw parameter Boris Brezillon
2017-01-04 14:59 ` Marek Vasut
2017-01-03 13:01 ` [PATCH v4 04/15] mtd: nand: rename nand_get_flash_type() into nand_detect() Boris Brezillon
2017-01-04 15:01 ` Marek Vasut
2017-01-04 17:03 ` Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 05/15] mtd: nand: add manufacturer specific initialization/detection steps Boris Brezillon
2017-01-04 15:07 ` Marek Vasut
2017-05-01 21:02 ` Brian Norris
2017-05-02 9:04 ` Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 06/15] mtd: nand: kill the MTD_NAND_IDS Kconfig option Boris Brezillon
2017-01-04 15:10 ` Marek Vasut
2017-01-03 13:01 ` [PATCH v4 07/15] mtd: nand: move Samsung specific init/detection logic in nand_samsung.c Boris Brezillon
2017-01-04 15:14 ` Marek Vasut
2017-01-04 17:08 ` Boris Brezillon
2017-01-06 23:53 ` Marek Vasut
2017-01-07 7:49 ` Boris Brezillon
2017-01-10 19:00 ` Marek Vasut
2017-01-11 7:57 ` Boris Brezillon
2017-01-11 13:02 ` Marek Vasut
2017-01-03 13:01 ` [PATCH v4 08/15] mtd: nand: move Hynix specific init/detection logic in nand_hynix.c Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 09/15] mtd: nand: move Toshiba specific init/detection logic in nand_toshiba.c Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 10/15] mtd: nand: move Micron specific init logic in nand_micron.c Boris Brezillon
2017-01-04 15:15 ` Marek Vasut
2017-01-04 17:13 ` Boris Brezillon
2017-01-04 17:22 ` Marek Vasut
2017-01-04 17:58 ` Boris Brezillon
2017-01-04 21:20 ` Marek Vasut
2017-01-03 13:01 ` Boris Brezillon [this message]
2017-01-03 13:01 ` [PATCH v4 12/15] mtd: nand: move Macronix specific initialization in nand_macronix.c Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 13/15] mtd: nand: samsung: retrieve ECC requirements from extended ID Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 14/15] mtd: nand: hynix: rework NAND ID decoding to extract more information Boris Brezillon
[not found] ` <3073151483449433@web27m.yandex.ru>
2017-01-03 13:32 ` Boris Brezillon
2017-01-03 13:01 ` [PATCH v4 15/15] mtd: nand: hynix: add read-retry support for 1x nm MLC NANDs Boris Brezillon
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