From: Michael Trimarchi <mich...@amarulasolutions.com>
Upstream linux commit 229204da53b31d.
Move AMD/Spansion specific initialization/detection logic into
nand_amd.c. This is part of the "separate vendor specific code from
core" cleanup process.
Signed-off-by: Michael Trimarchi <mich...@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binac...@amarulasolutions.com>
---
Changes in v3:
- Use commit sha1 with 13 digits.
- Add the SPDX-License-Identifier tag.
- Fix code style warnings raised by patman.
Changes in v2:
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
extra information.
- Adjust the include file in nand_amd.
drivers/mtd/nand/raw/Makefile | 4 ++-
drivers/mtd/nand/raw/nand_amd.c | 52 ++++++++++++++++++++++++++++++++
drivers/mtd/nand/raw/nand_base.c | 17 +----------
drivers/mtd/nand/raw/nand_ids.c | 2 +-
include/linux/mtd/rawnand.h | 1 +
5 files changed, 58 insertions(+), 18 deletions(-)
create mode 100644 drivers/mtd/nand/raw/nand_amd.c
diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 8ef30b45fd2d..9c2ced9925d8 100644
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -14,7 +14,8 @@ obj-$(CONFIG_SPL_NAND_DENALI) += denali_spl.o
obj-$(CONFIG_SPL_NAND_SIMPLE) += nand_spl_simple.o
obj-$(CONFIG_SPL_NAND_LOAD) += nand_spl_load.o
obj-$(CONFIG_SPL_NAND_ECC) += nand_ecc.o
-obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_micron.o
nand_samsung.o nand_toshiba.o
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_amd.o nand_hynix.o
nand_micron.o \
+ nand_samsung.o nand_toshiba.o
obj-$(CONFIG_SPL_NAND_IDENT) += nand_ids.o nand_timings.o
obj-$(CONFIG_TPL_NAND_INIT) += nand.o
ifeq ($(CONFIG_SPL_ENV_SUPPORT),y)
@@ -31,6 +32,7 @@ obj-y += nand_ids.o
obj-y += nand_util.o
obj-y += nand_ecc.o
obj-y += nand_base.o
+obj-y += nand_amd.o
obj-y += nand_hynix.o
obj-y += nand_micron.o
obj-y += nand_samsung.o
diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c
new file mode 100644
index 000000000000..e02b8c79dba2
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_amd.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 Free Electrons
+ * Copyright (C) 2017 NextThing Co
+ *
+ * Author: Boris Brezillon <boris.brezil...@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/rawnand.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/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index fe7e049d4064..68e6f4f14347 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4200,7 +4200,6 @@ static int nand_manufacturer_init(struct nand_chip *chip)
static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
{
struct mtd_info *mtd = &chip->mtd;
- int maf_id = chip->id.data[0];
mtd->erasesize = type->erasesize;
mtd->writesize = type->pagesize;
@@ -4208,19 +4207,6 @@ 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 && 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);
- }
}
/*
@@ -4245,8 +4231,7 @@ static void nand_decode_bbm_options(struct mtd_info *mtd,
* 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/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index bb5ac8337fde..c78f2e088040 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -196,7 +196,7 @@ 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"},
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index ec0f77b24bd6..bb1a359a9c14 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1142,6 +1142,7 @@ 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;
int nand_default_bbt(struct mtd_info *mtd);
int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);
--
2.32.0
