[PATCH v4 00/14] Port manufacturer specific initialization

[PATCH v4 00/14] Port manufacturer specific initialization

[Dario Binacchi]

In preparation of re-sync of mtd stack, we opt to move the current stack
slowly in order to have a more easy sync and test. We would like to
prepare uboot to support no-jedec and no-onfi compliant nand so we need
to clean up a bit the code we have now and upstream some of the support.
In this series we expect no functional change

Tested on:
 - imx6ull Micron   MT29F2G08ABAGAH4
 - imx8mn  Macronix MX30LF4G18AC

Changes in v4:
- Add the patch "mtd: nand: Fix MediaTek MT7621 SoC build" to the series.

Changes in v3:
- Use commit sha1 with 13 digits.
- Use commit sha1 with 13 digits.
- Fix code style warnings raised by patman.
- Use commit sha1 with 13 digits.
- Fix code style warnings raised by patman.
- Fix code style warnings raised by patman.
- Use commit sha1 with 13 digits.
- Fix code style warnings raised by patman.
- Add the SPDX-License-Identifier tag.
- Use commit sha1 with 13 digits.
- Add the SPDX-License-Identifier tag.
- Fix code style warnings raised by patman.
- Use commit sha1 with 13 digits.
- Add the SPDX-License-Identifier tag.
- Fix code style warnings raised by patman.
- Use commit sha1 with 13 digits.
- Add the SPDX-License-Identifier tag.
- Fix code style warnings raised by patman.
- Use commit sha1 with 13 digits.
- Add the SPDX-License-Identifier tag.
- Fix code style warnings raised by patman.
- Use commit sha1 with 13 digits.
- Add the SPDX-License-Identifier tag.
- Fix code style warnings raised by patman.
- Use commit sha1 with 13 digits.
- Use commit sha1 with 13 digits.
- Wrap commit description to a maximum of 75 chars.

Changes in v2:
- Use short-commit form.
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Use short-commit form.
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Use short-commit form.
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Use short-commit form.
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Adjust the include file in nand_samsung.
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Adjust the include file in nand_hynix.
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Adjust the include file in nand_toshiba.
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Adjust the include file in nand_micron.
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Adjust the include file in nand_amd.
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Adjust the include file in nand_macronix.
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
  extra information.
- Use short-commit form.
- Remove linux info. Uboot seems that backport without add this
  extra information.

Michael Trimarchi (14):
  mtd: nand: Get rid of busw parameter
  mtd: nand: Store nand ID in struct nand_chip
  mtd: nand: Add manufacturer specific initialization/detection steps
  mtd: nand: Get rid of mtd variable in function calls
  mtd: nand: Fix MediaTek MT7621 SoC build
  mtd: nand: Export symbol nand_decode_ext_id
  mtd: nand: Move Samsung specific init/detection logic in
    nand_samsung.c
  mtd: nand: Move Hynix specific init/detection logic in nand_hynix.c
  mtd: nand: Move Toshiba specific init/detection logic in
    nand_toshiba.c
  mtd: nand: Move Micron specific init logic in nand_micron.c
  mtd: nand: Move AMD/Spansion specific init/detection logic in
    nand_amd.c
  mtd: nand: Move Macronix specific initialization in nand_macronix.c
  mtd: nand: toshiba: Retrieve ECC requirements from extended ID
  mtd: decommission the NAND museum

 drivers/mtd/nand/raw/Makefile        |  10 +-
 drivers/mtd/nand/raw/mt7621_nand.c   |   2 +-
 drivers/mtd/nand/raw/nand_amd.c      |  52 ++++
 drivers/mtd/nand/raw/nand_base.c     | 370 ++++++++++-----------------
 drivers/mtd/nand/raw/nand_hynix.c    |  85 ++++++
 drivers/mtd/nand/raw/nand_ids.c      |  24 +-
 drivers/mtd/nand/raw/nand_macronix.c |  31 +++
 drivers/mtd/nand/raw/nand_micron.c   |  87 +++++++
 drivers/mtd/nand/raw/nand_samsung.c  |  90 +++++++
 drivers/mtd/nand/raw/nand_toshiba.c  |  79 ++++++
 include/linux/mtd/rawnand.h          |  78 ++++--
 11 files changed, 626 insertions(+), 282 deletions(-)
 create mode 100644 drivers/mtd/nand/raw/nand_amd.c
 create mode 100644 drivers/mtd/nand/raw/nand_hynix.c
 create mode 100644 drivers/mtd/nand/raw/nand_macronix.c
 create mode 100644 drivers/mtd/nand/raw/nand_micron.c
 create mode 100644 drivers/mtd/nand/raw/nand_samsung.c
 create mode 100644 drivers/mtd/nand/raw/nand_toshiba.c

-- 
2.32.0

[PATCH v4 01/14] mtd: nand: Get rid of busw parameter

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit 29a198a1592d83.

Auto-detection functions are passed a busw parameter to retrieve the actual
NAND bus width and eventually set the correct value in chip->options.
Rework the nand_get_flash_type() function to get rid of this extra
parameter and let detection code directly set the NAND_BUSWIDTH_16 flag in
chip->options if needed.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

Changes in v3:
- Use commit sha1 with 13 digits.

Changes in v2:
- Use short-commit form.
- Remove linux info. Uboot seems that backport without add this
  extra information.

 drivers/mtd/nand/raw/nand_base.c | 59 +++++++++++++++++---------------
 1 file changed, 32 insertions(+), 27 deletions(-)

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index e8ece0a4a0dd..9a2194ebd3f8 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -3898,8 +3898,7 @@ static void nand_onfi_detect_micron(struct nand_chip *chip,
 /*
  * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
  */
-static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
-					int *busw)
+static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip)
 {
 	struct nand_onfi_params *p = &chip->onfi_params;
 	char id[4];
@@ -3971,9 +3970,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	chip->bits_per_cell = p->bits_per_cell;
 
 	if (onfi_feature(chip) & ONFI_FEATURE_16_BIT_BUS)
-		*busw = NAND_BUSWIDTH_16;
-	else
-		*busw = 0;
+		chip->options |= NAND_BUSWIDTH_16;
 
 	if (p->ecc_bits != 0xff) {
 		chip->ecc_strength_ds = p->ecc_bits;
@@ -4003,8 +4000,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	return 1;
 }
 #else
-static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
-					int *busw)
+static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip)
 {
 	return 0;
 }
@@ -4013,8 +4009,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 /*
  * Check if the NAND chip is JEDEC compliant, returns 1 if it is, 0 otherwise.
  */
-static int nand_flash_detect_jedec(struct mtd_info *mtd, struct nand_chip *chip,
-					int *busw)
+static int nand_flash_detect_jedec(struct mtd_info *mtd, struct nand_chip *chip)
 {
 	struct nand_jedec_params *p = &chip->jedec_params;
 	struct jedec_ecc_info *ecc;
@@ -4076,9 +4071,7 @@ static int nand_flash_detect_jedec(struct mtd_info *mtd, struct nand_chip *chip,
 	chip->bits_per_cell = p->bits_per_cell;
 
 	if (jedec_feature(chip) & JEDEC_FEATURE_16_BIT_BUS)
-		*busw = NAND_BUSWIDTH_16;
-	else
-		*busw = 0;
+		chip->options |= NAND_BUSWIDTH_16;
 
 	/* ECC info */
 	ecc = &p->ecc_info[0];
@@ -4168,7 +4161,7 @@ static int nand_get_bits_per_cell(u8 cellinfo)
  * manufacturer-specific "extended ID" decoding patterns.
  */
 static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
-				u8 id_data[8], int *busw)
+				u8 id_data[8])
 {
 	int extid, id_len;
 	/* The 3rd id byte holds MLC / multichip data */
@@ -4221,7 +4214,6 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 		/* Calc blocksize */
 		mtd->erasesize = (128 * 1024) <<
 			(((extid >> 1) & 0x04) | (extid & 0x03));
-		*busw = 0;
 	} else if (id_len == 6 && id_data[0] == NAND_MFR_HYNIX &&
 			!nand_is_slc(chip)) {
 		unsigned int tmp;
@@ -4262,7 +4254,6 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 			mtd->erasesize = 768 * 1024;
 		else
 			mtd->erasesize = (64 * 1024) << tmp;
-		*busw = 0;
 	} else {
 		/* Calc pagesize */
 		mtd->writesize = 1024 << (extid & 0x03);
@@ -4275,7 +4266,9 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 		mtd->erasesize = (64 * 1024) << (extid & 0x03);
 		extid >>= 2;
 		/* Get buswidth information */
-		*busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
+		/* Get buswidth information */
+		if (extid & 0x1)
+			chip->options |= NAND_BUSWIDTH_16;
 
 		/*
 		 * Toshiba 24nm raw SLC (i.e., not BENAND) have 32B OOB per
@@ -4301,15 +4294,13 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
  * the chip.
  */
 static void nand_decode_id(struct mtd_info *mtd, struct nand_chip *chip,
-				struct nand_flash_dev *type, u8 id_data[8],
-				int *busw)
+				struct nand_flash_dev *type, u8 id_data[8])
 {
 	int maf_id = id_data[0];
 
 	mtd->erasesize = type->erasesize;
 	mtd->writesize = type->pagesize;
 	mtd->oobsize = mtd->writesize / 32;
-	*busw = type->options & NAND_BUSWIDTH_16;
 
 	/* All legacy ID NAND are small-page, SLC */
 	chip->bits_per_cell = 1;
@@ -4371,7 +4362,7 @@ static inline bool is_full_id_nand(struct nand_flash_dev *type)
 }
 
 static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
-		   struct nand_flash_dev *type, u8 *id_data, int *busw)
+		   struct nand_flash_dev *type, u8 *id_data)
 {
 	if (!strncmp((char *)type->id, (char *)id_data, type->id_len)) {
 		mtd->writesize = type->pagesize;
@@ -4386,8 +4377,6 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
 		chip->onfi_timing_mode_default =
 					type->onfi_timing_mode_default;
 
-		*busw = type->options & NAND_BUSWIDTH_16;
-
 		if (!mtd->name)
 			mtd->name = type->name;
 
@@ -4449,9 +4438,24 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	if (!type)
 		type = nand_flash_ids;
 
+	/*
+	 * Save the NAND_BUSWIDTH_16 flag before letting auto-detection logic
+	 * override it.
+	 * This is required to make sure initial NAND bus width set by the
+	 * NAND controller driver is coherent with the real NAND bus width
+	 * (extracted by auto-detection code).
+	 */
+	busw = chip->options & NAND_BUSWIDTH_16;
+
+	/*
+	 * The flag is only set (never cleared), reset it to its default value
+	 * before starting auto-detection.
+	 */
+	chip->options &= ~NAND_BUSWIDTH_16;
+
 	for (; type->name != NULL; type++) {
 		if (is_full_id_nand(type)) {
-			if (find_full_id_nand(mtd, chip, type, id_data, &busw))
+			if (find_full_id_nand(mtd, chip, type, id_data))
 				goto ident_done;
 		} else if (*dev_id == type->dev_id) {
 			break;
@@ -4461,11 +4465,11 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	chip->onfi_version = 0;
 	if (!type->name || !type->pagesize) {
 		/* Check if the chip is ONFI compliant */
-		if (nand_flash_detect_onfi(mtd, chip, &busw))
+		if (nand_flash_detect_onfi(mtd, chip))
 			goto ident_done;
 
 		/* Check if the chip is JEDEC compliant */
-		if (nand_flash_detect_jedec(mtd, chip, &busw))
+		if (nand_flash_detect_jedec(mtd, chip))
 			goto ident_done;
 	}
 
@@ -4479,10 +4483,11 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 
 	if (!type->pagesize) {
 		/* Decode parameters from extended ID */
-		nand_decode_ext_id(mtd, chip, id_data, &busw);
+		nand_decode_ext_id(mtd, chip, id_data);
 	} else {
-		nand_decode_id(mtd, chip, type, id_data, &busw);
+		nand_decode_id(mtd, chip, type, id_data);
 	}
+
 	/* Get chip options */
 	chip->options |= type->options;
 
-- 
2.32.0

[PATCH v4 02/14] mtd: nand: Store nand ID in struct nand_chip

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit 7f501f0a72036d.

Store the NAND ID in struct nand_chip to avoid passing id_data and id_len
as function parameters.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

Changes in v3:
- Use commit sha1 with 13 digits.
- 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.

 drivers/mtd/nand/raw/nand_base.c | 58 ++++++++++++++++----------------
 include/linux/mtd/rawnand.h      | 15 +++++++++
 2 files changed, 44 insertions(+), 29 deletions(-)

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 9a2194ebd3f8..220804c75c87 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4160,16 +4160,14 @@ static int nand_get_bits_per_cell(u8 cellinfo)
  * chip. The rest of the parameters must be decoded according to generic or
  * manufacturer-specific "extended ID" decoding patterns.
  */
-static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
-				u8 id_data[8])
+static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip)
 {
 	int extid, id_len;
 	/* The 3rd id byte holds MLC / multichip data */
-	chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]);
+	chip->bits_per_cell = nand_get_bits_per_cell(chip->id.data[2]);
 	/* The 4th id byte is the important one */
-	extid = id_data[3];
-
-	id_len = nand_id_len(id_data, 8);
+	extid = chip->id.data[3];
+	id_len = chip->id.len;
 
 	/*
 	 * Field definitions are in the following datasheets:
@@ -4180,8 +4178,8 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 	 * Check for ID length, non-zero 6th byte, cell type, and Hynix/Samsung
 	 * ID to decide what to do.
 	 */
-	if (id_len == 6 && id_data[0] == NAND_MFR_SAMSUNG &&
-			!nand_is_slc(chip) && id_data[5] != 0x00) {
+	if (id_len == 6 && chip->id.data[0] == NAND_MFR_SAMSUNG &&
+	    !nand_is_slc(chip) && chip->id.data[5] != 0x00) {
 		/* Calc pagesize */
 		mtd->writesize = 2048 << (extid & 0x03);
 		extid >>= 2;
@@ -4214,7 +4212,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 		/* Calc blocksize */
 		mtd->erasesize = (128 * 1024) <<
 			(((extid >> 1) & 0x04) | (extid & 0x03));
-	} else if (id_len == 6 && id_data[0] == NAND_MFR_HYNIX &&
+	} else if (id_len == 6 && chip->id.data[0] == NAND_MFR_HYNIX &&
 			!nand_is_slc(chip)) {
 		unsigned int tmp;
 
@@ -4278,10 +4276,10 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 		 *                         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 */) {
+		if (id_len >= 6 && chip->id.data[0] == NAND_MFR_TOSHIBA &&
+		    nand_is_slc(chip) &&
+		    (chip->id.data[5] & 0x7) == 0x6 /* 24nm */ &&
+		    !(chip->id.data[4] & 0x80) /* !BENAND */) {
 			mtd->oobsize = 32 * mtd->writesize >> 9;
 		}
 
@@ -4294,9 +4292,9 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
  * the chip.
  */
 static void nand_decode_id(struct mtd_info *mtd, struct nand_chip *chip,
-				struct nand_flash_dev *type, u8 id_data[8])
+				struct nand_flash_dev *type)
 {
-	int maf_id = id_data[0];
+	int maf_id = chip->id.data[0];
 
 	mtd->erasesize = type->erasesize;
 	mtd->writesize = type->pagesize;
@@ -4311,11 +4309,11 @@ static void nand_decode_id(struct mtd_info *mtd, struct nand_chip *chip,
 	 * 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) {
+	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 <<= ((id_data[3] & 0x03) << 1);
+		mtd->erasesize <<= ((chip->id.data[3] & 0x03) << 1);
 	}
 }
 
@@ -4325,9 +4323,9 @@ static void nand_decode_id(struct mtd_info *mtd, struct nand_chip *chip,
  * page size, cell-type information).
  */
 static void nand_decode_bbm_options(struct mtd_info *mtd,
-				    struct nand_chip *chip, u8 id_data[8])
+				    struct nand_chip *chip)
 {
-	int maf_id = id_data[0];
+	int maf_id = chip->id.data[0];
 
 	/* Set the bad block position */
 	if (mtd->writesize > 512 || (chip->options & NAND_BUSWIDTH_16))
@@ -4362,14 +4360,14 @@ static inline bool is_full_id_nand(struct nand_flash_dev *type)
 }
 
 static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
-		   struct nand_flash_dev *type, u8 *id_data)
+		   struct nand_flash_dev *type)
 {
-	if (!strncmp((char *)type->id, (char *)id_data, type->id_len)) {
+	if (!strncmp((char *)type->id, (char *)chip->id.data, type->id_len)) {
 		mtd->writesize = type->pagesize;
 		mtd->erasesize = type->erasesize;
 		mtd->oobsize = type->oobsize;
 
-		chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]);
+		chip->bits_per_cell = nand_get_bits_per_cell(chip->id.data[2]);
 		chip->chipsize = (uint64_t)type->chipsize << 20;
 		chip->options |= type->options;
 		chip->ecc_strength_ds = NAND_ECC_STRENGTH(type);
@@ -4395,7 +4393,7 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 {
 	int busw, ret;
 	int maf_idx;
-	u8 id_data[8];
+	u8 *id_data = chip->id.data;
 
 	/*
 	 * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
@@ -4453,9 +4451,11 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	 */
 	chip->options &= ~NAND_BUSWIDTH_16;
 
+	chip->id.len = nand_id_len(id_data, ARRAY_SIZE(chip->id.data));
+
 	for (; type->name != NULL; type++) {
 		if (is_full_id_nand(type)) {
-			if (find_full_id_nand(mtd, chip, type, id_data))
+			if (find_full_id_nand(mtd, chip, type))
 				goto ident_done;
 		} else if (*dev_id == type->dev_id) {
 			break;
@@ -4483,9 +4483,9 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 
 	if (!type->pagesize) {
 		/* Decode parameters from extended ID */
-		nand_decode_ext_id(mtd, chip, id_data);
+		nand_decode_ext_id(mtd, chip);
 	} else {
-		nand_decode_id(mtd, chip, type, id_data);
+		nand_decode_id(mtd, chip, type);
 	}
 
 	/* Get chip options */
@@ -4523,7 +4523,7 @@ ident_done:
 		return ERR_PTR(-EINVAL);
 	}
 
-	nand_decode_bbm_options(mtd, chip, id_data);
+	nand_decode_bbm_options(mtd, chip);
 
 	/* Calculate the address shift from the page size */
 	chip->page_shift = ffs(mtd->writesize) - 1;
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 3417ca2a0d2e..f2c6a978cbf8 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -507,6 +507,19 @@ static inline void nand_hw_control_init(struct nand_hw_control *nfc)
 	init_waitqueue_head(&nfc->wq);
 }
 
+/* The maximum expected count of bytes in the NAND ID sequence */
+#define NAND_MAX_ID_LEN 8
+
+/**
+ * struct nand_id - NAND id structure
+ * @data: buffer containing the id bytes.
+ * @len: ID length.
+ */
+struct nand_id {
+	u8 data[NAND_MAX_ID_LEN];
+	int len;
+};
+
 /**
  * struct nand_ecc_step_info - ECC step information of ECC engine
  * @stepsize: data bytes per ECC step
@@ -888,6 +901,8 @@ nand_get_sdr_timings(const struct nand_data_interface *conf)
 
 struct nand_chip {
 	struct mtd_info mtd;
+	struct nand_id id;
+
 	void __iomem *IO_ADDR_R;
 	void __iomem *IO_ADDR_W;
 
-- 
2.32.0

[PATCH v4 03/14] mtd: nand: Add manufacturer specific initialization/detection steps

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit abbe26d144ec22.

A lot of NANDs are implementing generic features in a non-generic way,
or are providing advanced auto-detection logic where the NAND ID bytes
meaning changes with the NAND generation.

Providing this vendor specific initialization step will allow us to get
rid of full-id entries in the nand_ids table or all the vendor specific
cases added over the time in the generic NAND ID decoding logic.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

Changes in v3:
- Use commit sha1 with 13 digits.
- 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.

 drivers/mtd/nand/raw/nand_base.c | 98 ++++++++++++++++++++++++--------
 include/linux/mtd/rawnand.h      | 30 ++++++++++
 2 files changed, 105 insertions(+), 23 deletions(-)

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 220804c75c87..0900e6dbf9a6 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4286,6 +4286,39 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip)
 	}
 }
 
+/*
+ * Manufacturer detection. Only used when the NAND is not ONFI or JEDEC
+ * compliant and does not have a full-id or legacy-id entry in the nand_ids
+ * table.
+ */
+static void nand_manufacturer_detect(struct mtd_info *mtd, struct nand_chip *chip)
+{
+	/*
+	 * Try manufacturer detection if available and use
+	 * nand_decode_ext_id() otherwise.
+	 */
+	if (chip->manufacturer.desc && chip->manufacturer.desc->ops &&
+	    chip->manufacturer.desc->ops->detect)
+		chip->manufacturer.desc->ops->detect(chip);
+	else
+		nand_decode_ext_id(mtd, chip);
+}
+
+/*
+ * Manufacturer initialization. This function is called for all NANDs including
+ * ONFI and JEDEC compliant ones.
+ * Manufacturer drivers should put all their specific initialization code in
+ * their ->init() hook.
+ */
+static int nand_manufacturer_init(struct nand_chip *chip)
+{
+	if (!chip->manufacturer.desc || !chip->manufacturer.desc->ops ||
+	    !chip->manufacturer.desc->ops->init)
+		return 0;
+
+	return chip->manufacturer.desc->ops->init(chip);
+}
+
 /*
  * Old devices have chip data hardcoded in the device ID table. nand_decode_id
  * decodes a matching ID table entry and assigns the MTD size parameters for
@@ -4383,6 +4416,26 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
 	return false;
 }
 
+/**
+ * nand_get_manufacturer_desc - Get manufacturer information from the
+ *                              manufacturer ID
+ * @id: manufacturer ID
+ *
+ * Returns a nand_manufacturer_desc object if the manufacturer is defined
+ * in the NAND manufacturers database, NULL otherwise.
+ */
+static const struct nand_manufacturers *nand_get_manufacturer_desc(u8 id)
+{
+	int i;
+
+	for (i = 0; nand_manuf_ids[i].id != 0x0; i++) {
+		if (nand_manuf_ids[i].id == id)
+			return &nand_manuf_ids[i];
+	}
+
+	return NULL;
+}
+
 /*
  * Get the flash and manufacturer id and lookup if the type is supported.
  */
@@ -4391,8 +4444,8 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 						  int *maf_id, int *dev_id,
 						  struct nand_flash_dev *type)
 {
+	const struct nand_manufacturers *manufacturer_desc;
 	int busw, ret;
-	int maf_idx;
 	u8 *id_data = chip->id.data;
 
 	/*
@@ -4433,6 +4486,12 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 		return ERR_PTR(-ENODEV);
 	}
 
+	chip->id.len = nand_id_len(id_data, ARRAY_SIZE(chip->id.data));
+
+	/* Try to identify manufacturer */
+	manufacturer_desc = nand_get_manufacturer_desc(*maf_id);
+	chip->manufacturer.desc = manufacturer_desc;
+
 	if (!type)
 		type = nand_flash_ids;
 
@@ -4451,8 +4510,6 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	 */
 	chip->options &= ~NAND_BUSWIDTH_16;
 
-	chip->id.len = nand_id_len(id_data, ARRAY_SIZE(chip->id.data));
-
 	for (; type->name != NULL; type++) {
 		if (is_full_id_nand(type)) {
 			if (find_full_id_nand(mtd, chip, type))
@@ -4482,8 +4539,7 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	chip->chipsize = (uint64_t)type->chipsize << 20;
 
 	if (!type->pagesize) {
-		/* Decode parameters from extended ID */
-		nand_decode_ext_id(mtd, chip);
+		nand_manufacturer_detect(mtd, chip);
 	} else {
 		nand_decode_id(mtd, chip, type);
 	}
@@ -4499,12 +4555,6 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 		chip->options &= ~NAND_SAMSUNG_LP_OPTIONS;
 ident_done:
 
-	/* Try to identify manufacturer */
-	for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_idx++) {
-		if (nand_manuf_ids[maf_idx].id == *maf_id)
-			break;
-	}
-
 	if (chip->options & NAND_BUSWIDTH_AUTO) {
 		WARN_ON(chip->options & NAND_BUSWIDTH_16);
 		chip->options |= busw;
@@ -4516,7 +4566,7 @@ ident_done:
 		 */
 		pr_info("device found, Manufacturer ID: 0x%02x, Chip ID: 0x%02x\n",
 			*maf_id, *dev_id);
-		pr_info("%s %s\n", nand_manuf_ids[maf_idx].name, mtd->name);
+		pr_info("%s %s\n", manufacturer_desc->name, mtd->name);
 		pr_warn("bus width %d instead %d bit\n",
 			   (chip->options & NAND_BUSWIDTH_16) ? 16 : 8,
 			   busw ? 16 : 8);
@@ -4549,28 +4599,30 @@ ident_done:
 	if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
 		chip->cmdfunc = nand_command_lp;
 
+	ret = nand_manufacturer_init(chip);
+	if (ret)
+		return ERR_PTR(ret);
+
 	pr_info("device found, Manufacturer ID: 0x%02x, Chip ID: 0x%02x\n",
 		*maf_id, *dev_id);
 
 #ifdef CONFIG_SYS_NAND_ONFI_DETECTION
 	if (chip->onfi_version)
-		pr_info("%s %s\n", nand_manuf_ids[maf_idx].name,
-				chip->onfi_params.model);
+		pr_info("%s %s\n", manufacturer_desc->name,
+			chip->onfi_params.model);
 	else if (chip->jedec_version)
-		pr_info("%s %s\n", nand_manuf_ids[maf_idx].name,
-				chip->jedec_params.model);
+		pr_info("%s %s\n", manufacturer_desc->name,
+			chip->jedec_params.model);
 	else
-		pr_info("%s %s\n", nand_manuf_ids[maf_idx].name,
-				type->name);
+		pr_info("%s %s\n", manufacturer_desc->name, type->name);
 #else
 	if (chip->jedec_version)
-		pr_info("%s %s\n", nand_manuf_ids[maf_idx].name,
-				chip->jedec_params.model);
+		pr_info("%s %s\n", manufacturer_desc->name,
+			chip->jedec_params.model);
 	else
-		pr_info("%s %s\n", nand_manuf_ids[maf_idx].name,
-				type->name);
+		pr_info("%s %s\n", manufacturer_desc->name, type->name);
 
-	pr_info("%s %s\n", nand_manuf_ids[maf_idx].name,
+	pr_info("%s %s\n", manufacturer_desc->name,
 		type->name);
 #endif
 
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index f2c6a978cbf8..57fe7fb47bd8 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -796,6 +796,17 @@ nand_get_sdr_timings(const struct nand_data_interface *conf)
 	return &conf->timings.sdr;
 }
 
+/**
+ * struct nand_manufacturer_ops - NAND Manufacturer operations
+ * @detect: detect the NAND memory organization and capabilities
+ * @init: initialize all vendor specific fields (like the ->read_retry()
+ *	  implementation) if any.
+ */
+struct nand_manufacturer_ops {
+	void (*detect)(struct nand_chip *chip);
+	int (*init)(struct nand_chip *chip);
+};
+
 /**
  * struct nand_chip - NAND Private Flash Chip Data
  * @mtd:		MTD device registered to the MTD framework
@@ -897,6 +908,7 @@ nand_get_sdr_timings(const struct nand_data_interface *conf)
  *			devices.
  * @priv:		[OPTIONAL] pointer to private chip data
  * @write_page:		[REPLACEABLE] High-level page write function
+ * @manufacturer:	[INTERN] Contains manufacturer information
  */
 
 struct nand_chip {
@@ -983,6 +995,11 @@ struct nand_chip {
 	struct nand_bbt_descr *badblock_pattern;
 
 	void *priv;
+
+	struct {
+		const struct nand_manufacturers *desc;
+		void *priv;
+	} manufacturer;
 };
 
 static inline void nand_set_flash_node(struct nand_chip *chip,
@@ -1016,6 +1033,17 @@ static inline void nand_set_controller_data(struct nand_chip *chip, void *priv)
 	chip->priv = priv;
 }
 
+static inline void nand_set_manufacturer_data(struct nand_chip *chip,
+					      void *priv)
+{
+	chip->manufacturer.priv = priv;
+}
+
+static inline void *nand_get_manufacturer_data(struct nand_chip *chip)
+{
+	return chip->manufacturer.priv;
+}
+
 /*
  * NAND Flash Manufacturer ID Codes
  */
@@ -1120,10 +1148,12 @@ struct nand_flash_dev {
  * struct nand_manufacturers - NAND Flash Manufacturer ID Structure
  * @name:	Manufacturer name
  * @id:		manufacturer ID code of device.
+ * @ops:	manufacturer operations
 */
 struct nand_manufacturers {
 	int id;
 	char *name;
+	const struct nand_manufacturer_ops *ops;
 };
 
 extern struct nand_flash_dev nand_flash_ids[];
-- 
2.32.0

[PATCH v4 04/14] mtd: nand: Get rid of mtd variable in function calls

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

chip points to mtd. Passing chip is enough to have a reference
to mtd when is necessary

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

Changes in v3:
- Fix code style warnings raised by patman.

 drivers/mtd/nand/raw/nand_base.c | 25 +++++++++++++------------
 include/linux/mtd/rawnand.h      |  3 +--
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 0900e6dbf9a6..145de22be852 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4160,8 +4160,9 @@ static int nand_get_bits_per_cell(u8 cellinfo)
  * chip. The rest of the parameters must be decoded according to generic or
  * manufacturer-specific "extended ID" decoding patterns.
  */
-static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip)
+static void nand_decode_ext_id(struct nand_chip *chip)
 {
+	struct mtd_info *mtd = &chip->mtd;
 	int extid, id_len;
 	/* The 3rd id byte holds MLC / multichip data */
 	chip->bits_per_cell = nand_get_bits_per_cell(chip->id.data[2]);
@@ -4291,7 +4292,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip)
  * compliant and does not have a full-id or legacy-id entry in the nand_ids
  * table.
  */
-static void nand_manufacturer_detect(struct mtd_info *mtd, struct nand_chip *chip)
+static void nand_manufacturer_detect(struct nand_chip *chip)
 {
 	/*
 	 * Try manufacturer detection if available and use
@@ -4301,7 +4302,7 @@ static void nand_manufacturer_detect(struct mtd_info *mtd, struct nand_chip *chi
 	    chip->manufacturer.desc->ops->detect)
 		chip->manufacturer.desc->ops->detect(chip);
 	else
-		nand_decode_ext_id(mtd, chip);
+		nand_decode_ext_id(chip);
 }
 
 /*
@@ -4324,9 +4325,9 @@ static int nand_manufacturer_init(struct nand_chip *chip)
  * decodes a matching ID table entry and assigns the MTD size parameters for
  * the chip.
  */
-static void nand_decode_id(struct mtd_info *mtd, struct nand_chip *chip,
-				struct nand_flash_dev *type)
+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;
@@ -4439,11 +4440,11 @@ static const struct nand_manufacturers *nand_get_manufacturer_desc(u8 id)
 /*
  * Get the flash and manufacturer id and lookup if the type is supported.
  */
-struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
-						  struct nand_chip *chip,
-						  int *maf_id, int *dev_id,
-						  struct nand_flash_dev *type)
+struct nand_flash_dev *nand_get_flash_type(struct nand_chip *chip, int *maf_id,
+					   int *dev_id,
+					   struct nand_flash_dev *type)
 {
+	struct mtd_info *mtd = &chip->mtd;
 	const struct nand_manufacturers *manufacturer_desc;
 	int busw, ret;
 	u8 *id_data = chip->id.data;
@@ -4539,9 +4540,9 @@ struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	chip->chipsize = (uint64_t)type->chipsize << 20;
 
 	if (!type->pagesize) {
-		nand_manufacturer_detect(mtd, chip);
+		nand_manufacturer_detect(chip);
 	} else {
-		nand_decode_id(mtd, chip, type);
+		nand_decode_id(chip, type);
 	}
 
 	/* Get chip options */
@@ -4729,7 +4730,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
 	nand_set_defaults(chip, chip->options & NAND_BUSWIDTH_16);
 
 	/* Read the flash type */
-	type = nand_get_flash_type(mtd, chip, &nand_maf_id,
+	type = nand_get_flash_type(chip, &nand_maf_id,
 				   &nand_dev_id, table);
 
 	if (IS_ERR(type)) {
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 57fe7fb47bd8..d8141cb4d114 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -29,8 +29,7 @@ struct nand_flash_dev;
 struct device_node;
 
 /* Get the flash and manufacturer id and lookup if the type is supported. */
-struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
-					   struct nand_chip *chip,
+struct nand_flash_dev *nand_get_flash_type(struct nand_chip *chip,
 					   int *maf_id, int *dev_id,
 					   struct nand_flash_dev *type);
 
-- 
2.32.0

[PATCH v4 05/14] mtd: nand: Fix MediaTek MT7621 SoC build

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

nand_get_flash_type was reworked in commit 1ca6f9483e9ab5. This change
break the Mediatek MT721. Fix it adjust the function call parameters

+include/linux/mtd/rawnand.h:32:62: note: expected 'struct nand_chip *' but argument is of type 'struct mtd_info *'
+   32 | struct nand_flash_dev *nand_get_flash_type(struct nand_chip *chip,
+      |                                            ~~~~~~~~~~~~~~~~~~^~~~
+drivers/mtd/nand/raw/mt7621_nand.c:1189:48: error: passing argument 2 of 'nand_get_flash_type' from incompatible pointer type [-Werror=incompatible-pointer-types]
+      |                                                ^~~~
+      |                                                |
+      |                                                struct nand_chip *
+include/linux/mtd/rawnand.h:33:49: note: expected 'int *' but argument is of type 'struct nand_chip *'
+   33 |                                            int *maf_id, int *dev_id,

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

Changes in v4:
- Add the patch to the series.

 drivers/mtd/nand/raw/mt7621_nand.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/mt7621_nand.c b/drivers/mtd/nand/raw/mt7621_nand.c
index 2fd89349392b..9763ae6dc51a 100644
--- a/drivers/mtd/nand/raw/mt7621_nand.c
+++ b/drivers/mtd/nand/raw/mt7621_nand.c
@@ -1186,7 +1186,7 @@ int mt7621_nfc_spl_post_init(struct mt7621_nfc *nfc)
 	int nand_maf_id, nand_dev_id;
 	struct nand_flash_dev *type;
 
-	type = nand_get_flash_type(&nand->mtd, nand, &nand_maf_id,
+	type = nand_get_flash_type(nand, &nand_maf_id,
 				   &nand_dev_id, NULL);
 
 	if (IS_ERR(type))
-- 
2.32.0

Re: [PATCH v4 05/14] mtd: nand: Fix MediaTek MT7621 SoC build

[Weijie Gao]

On Fri, 2022-07-22 at 18:09 +0200, Dario Binacchi wrote:
> From: Michael Trimarchi <michael@amarulasolutions.com>
> 
> nand_get_flash_type was reworked in commit 1ca6f9483e9ab5. This
> change
> break the Mediatek MT721. Fix it adjust the function call parameters
> 
> +include/linux/mtd/rawnand.h:32:62: note: expected 'struct nand_chip
> *' but argument is of type 'struct mtd_info *'
> +   32 | struct nand_flash_dev *nand_get_flash_type(struct nand_chip
> *chip,
> +      |                                            ~~~~~~~~~~~~~~~~~
> ~^~~~
> +drivers/mtd/nand/raw/mt7621_nand.c:1189:48: error: passing argument
> 2 of 'nand_get_flash_type' from incompatible pointer type [-
> Werror=incompatible-pointer-types]
> +      |                                                ^~~~
> +      |                                                |
> +      |                                                struct
> nand_chip *
> +include/linux/mtd/rawnand.h:33:49: note: expected 'int *' but
> argument is of type 'struct nand_chip *'
> +   33 |                                            int *maf_id, int
> *dev_id,
> 
> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> 
> ---
> 
> Changes in v4:
> - Add the patch to the series.
> 
>  drivers/mtd/nand/raw/mt7621_nand.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/raw/mt7621_nand.c
> b/drivers/mtd/nand/raw/mt7621_nand.c
> index 2fd89349392b..9763ae6dc51a 100644
> --- a/drivers/mtd/nand/raw/mt7621_nand.c
> +++ b/drivers/mtd/nand/raw/mt7621_nand.c
> @@ -1186,7 +1186,7 @@ int mt7621_nfc_spl_post_init(struct mt7621_nfc
> *nfc)
>  	int nand_maf_id, nand_dev_id;
>  	struct nand_flash_dev *type;
>  
> -	type = nand_get_flash_type(&nand->mtd, nand, &nand_maf_id,
> +	type = nand_get_flash_type(nand, &nand_maf_id,
>  				   &nand_dev_id, NULL);
>  
>  	if (IS_ERR(type))

Reviewed-by: Weijie Gao <weijie.gao@mediatek.com>

Best Regards,
Weijie

[PATCH v4 06/14] mtd: nand: Export symbol nand_decode_ext_id

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

In preparation of moving specific nand support that are not jedec
or onfi

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v1)

 drivers/mtd/nand/raw/nand_base.c | 3 ++-
 include/linux/mtd/rawnand.h      | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 145de22be852..174c760f3416 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4160,7 +4160,7 @@ static int nand_get_bits_per_cell(u8 cellinfo)
  * chip. The rest of the parameters must be decoded according to generic or
  * manufacturer-specific "extended ID" decoding patterns.
  */
-static void nand_decode_ext_id(struct nand_chip *chip)
+void nand_decode_ext_id(struct nand_chip *chip)
 {
 	struct mtd_info *mtd = &chip->mtd;
 	int extid, id_len;
@@ -4286,6 +4286,7 @@ static void nand_decode_ext_id(struct nand_chip *chip)
 
 	}
 }
+EXPORT_SYMBOL_GPL(nand_decode_ext_id);
 
 /*
  * Manufacturer detection. Only used when the NAND is not ONFI or JEDEC
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index d8141cb4d114..8fb2a43296f5 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1374,4 +1374,7 @@ int nand_read_data_op(struct nand_chip *chip, void *buf, unsigned int len,
 int nand_write_data_op(struct nand_chip *chip, const void *buf,
 		       unsigned int len, bool force_8bit);
 
+/* Default extended ID decoding function */
+void nand_decode_ext_id(struct nand_chip *chip);
+
 #endif /* __LINUX_MTD_RAWNAND_H */
-- 
2.32.0

[PATCH v4 07/14] mtd: nand: Move Samsung specific init/detection logic in nand_samsung.c

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit c51d0ac59f2420.

Move Samsung specific initialization and detection logic into
nand_samsung.c. This is part of the "separate vendor specific code from
core" cleanup process.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

Changes in v3:
- Use commit sha1 with 13 digits.
- Fix code style warnings raised by patman.
- Add the SPDX-License-Identifier tag.

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_samsung.

 drivers/mtd/nand/raw/Makefile       |  3 +-
 drivers/mtd/nand/raw/nand_base.c    | 52 ++---------------
 drivers/mtd/nand/raw/nand_ids.c     |  4 +-
 drivers/mtd/nand/raw/nand_samsung.c | 90 +++++++++++++++++++++++++++++
 include/linux/mtd/rawnand.h         |  2 +
 5 files changed, 100 insertions(+), 51 deletions(-)
 create mode 100644 drivers/mtd/nand/raw/nand_samsung.c

diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index f278f31f5cd5..440290bed0fe 100644
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -14,7 +14,7 @@ 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-$(CONFIG_SPL_NAND_BASE) += nand_base.o
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_samsung.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 +31,7 @@ obj-y += nand_ids.o
 obj-y += nand_util.o
 obj-y += nand_ecc.o
 obj-y += nand_base.o
+obj-y += nand_samsung.o
 obj-y += nand_timings.o
 
 endif # not spl
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 174c760f3416..fe59157bc3c4 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4173,48 +4173,13 @@ void nand_decode_ext_id(struct nand_chip *chip)
 	/*
 	 * Field definitions are in the following datasheets:
 	 * Old style (4,5 byte ID): Samsung K9GAG08U0M (p.32)
-	 * New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44)
 	 * 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.
 	 */
-	if (id_len == 6 && chip->id.data[0] == NAND_MFR_SAMSUNG &&
-	    !nand_is_slc(chip) && chip->id.data[5] != 0x00) {
-		/* Calc pagesize */
-		mtd->writesize = 2048 << (extid & 0x03);
-		extid >>= 2;
-		/* Calc oobsize */
-		switch (((extid >> 2) & 0x04) | (extid & 0x03)) {
-		case 1:
-			mtd->oobsize = 128;
-			break;
-		case 2:
-			mtd->oobsize = 218;
-			break;
-		case 3:
-			mtd->oobsize = 400;
-			break;
-		case 4:
-			mtd->oobsize = 436;
-			break;
-		case 5:
-			mtd->oobsize = 512;
-			break;
-		case 6:
-			mtd->oobsize = 640;
-			break;
-		case 7:
-		default: /* Other cases are "reserved" (unknown) */
-			mtd->oobsize = 1024;
-			break;
-		}
-		extid >>= 2;
-		/* Calc blocksize */
-		mtd->erasesize = (128 * 1024) <<
-			(((extid >> 1) & 0x04) | (extid & 0x03));
-	} else if (id_len == 6 && chip->id.data[0] == NAND_MFR_HYNIX &&
-			!nand_is_slc(chip)) {
+	if (id_len == 6 && chip->id.data[0] == NAND_MFR_HYNIX &&
+	    !nand_is_slc(chip)) {
 		unsigned int tmp;
 
 		/* Calc pagesize */
@@ -4374,13 +4339,10 @@ 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_SAMSUNG ||
-			 maf_id == NAND_MFR_HYNIX))
+	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_SAMSUNG ||
-				 maf_id == NAND_MFR_HYNIX ||
+				(maf_id == NAND_MFR_HYNIX ||
 				 maf_id == NAND_MFR_TOSHIBA ||
 				 maf_id == NAND_MFR_AMD ||
 				 maf_id == NAND_MFR_MACRONIX)) ||
@@ -4549,12 +4511,6 @@ struct nand_flash_dev *nand_get_flash_type(struct nand_chip *chip, int *maf_id,
 	/* Get chip options */
 	chip->options |= type->options;
 
-	/*
-	 * Check if chip is not a Samsung device. Do not clear the
-	 * options for chips which do not have an extended id.
-	 */
-	if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize)
-		chip->options &= ~NAND_SAMSUNG_LP_OPTIONS;
 ident_done:
 
 	if (chip->options & NAND_BUSWIDTH_AUTO) {
diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index 2a50f0b2144c..f4126c3a5a13 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -10,7 +10,7 @@
 #include <linux/mtd/rawnand.h>
 #include <linux/sizes.h>
 
-#define LP_OPTIONS NAND_SAMSUNG_LP_OPTIONS
+#define LP_OPTIONS 0
 #define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
 
 #define SP_OPTIONS NAND_NEED_READRDY
@@ -189,7 +189,7 @@ struct nand_flash_dev nand_flash_ids[] = {
 /* Manufacturer IDs */
 struct nand_manufacturers nand_manuf_ids[] = {
 	{NAND_MFR_TOSHIBA, "Toshiba"},
-	{NAND_MFR_SAMSUNG, "Samsung"},
+	{NAND_MFR_SAMSUNG, "Samsung", &samsung_nand_manuf_ops},
 	{NAND_MFR_FUJITSU, "Fujitsu"},
 	{NAND_MFR_NATIONAL, "National"},
 	{NAND_MFR_RENESAS, "Renesas"},
diff --git a/drivers/mtd/nand/raw/nand_samsung.c b/drivers/mtd/nand/raw/nand_samsung.c
new file mode 100644
index 000000000000..0ab80621936f
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_samsung.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 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/bug.h>
+#include <linux/mtd/rawnand.h>
+
+static void samsung_nand_decode_id(struct nand_chip *chip)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+
+	/* New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44) */
+	if (chip->id.len == 6 && !nand_is_slc(chip) &&
+	    chip->id.data[5] != 0x00) {
+		u8 extid = chip->id.data[3];
+
+		/* Get pagesize */
+		mtd->writesize = 2048 << (extid & 0x03);
+
+		extid >>= 2;
+
+		/* Get oobsize */
+		switch (((extid >> 2) & 0x4) | (extid & 0x3)) {
+		case 1:
+			mtd->oobsize = 128;
+			break;
+		case 2:
+			mtd->oobsize = 218;
+			break;
+		case 3:
+			mtd->oobsize = 400;
+			break;
+		case 4:
+			mtd->oobsize = 436;
+			break;
+		case 5:
+			mtd->oobsize = 512;
+			break;
+		case 6:
+			mtd->oobsize = 640;
+			break;
+		case 7:
+		default: /* Other cases are "reserved" (unknown) */
+			WARN(1, "Invalid OOB size value");
+			mtd->oobsize = 1024;
+			break;
+		}
+
+		/* Get blocksize */
+		extid >>= 2;
+		mtd->erasesize = (128 * 1024) <<
+				 (((extid >> 1) & 0x04) | (extid & 0x03));
+	} else {
+		nand_decode_ext_id(chip);
+	}
+}
+
+static int samsung_nand_init(struct nand_chip *chip)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+
+	if (mtd->writesize > 512)
+		chip->options |= NAND_SAMSUNG_LP_OPTIONS;
+
+	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 samsung_nand_manuf_ops = {
+	.detect = samsung_nand_decode_id,
+	.init = samsung_nand_init,
+};
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 8fb2a43296f5..d0312e924b4d 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1158,6 +1158,8 @@ struct nand_manufacturers {
 extern struct nand_flash_dev nand_flash_ids[];
 extern struct nand_manufacturers nand_manuf_ids[];
 
+extern const struct nand_manufacturer_ops samsung_nand_manuf_ops;
+
 int nand_default_bbt(struct mtd_info *mtd);
 int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);
 int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs);
-- 
2.32.0

[PATCH v4 08/14] mtd: nand: Move Hynix specific init/detection logic in nand_hynix.c

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit 01389b6bd2f4f7.

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: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

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_hynix.

 drivers/mtd/nand/raw/Makefile     |   3 +-
 drivers/mtd/nand/raw/nand_base.c  | 117 ++++++++----------------------
 drivers/mtd/nand/raw/nand_hynix.c |  85 ++++++++++++++++++++++
 drivers/mtd/nand/raw/nand_ids.c   |   2 +-
 include/linux/mtd/rawnand.h       |   1 +
 5 files changed, 120 insertions(+), 88 deletions(-)
 create mode 100644 drivers/mtd/nand/raw/nand_hynix.c

diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 440290bed0fe..86d9b8e8beb8 100644
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -14,7 +14,7 @@ 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-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_samsung.o
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_samsung.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 +31,7 @@ obj-y += nand_ids.o
 obj-y += nand_util.o
 obj-y += nand_ecc.o
 obj-y += nand_base.o
+obj-y += nand_hynix.o
 obj-y += nand_samsung.o
 obj-y += nand_timings.o
 
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index fe59157bc3c4..5698c1e6a229 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4170,85 +4170,34 @@ void nand_decode_ext_id(struct nand_chip *chip)
 	extid = chip->id.data[3];
 	id_len = chip->id.len;
 
+	/* 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 */
+	/* 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 && chip->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 */
-		/* 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 && chip->id.data[0] == NAND_MFR_TOSHIBA &&
-		    nand_is_slc(chip) &&
-		    (chip->id.data[5] & 0x7) == 0x6 /* 24nm */ &&
-		    !(chip->id.data[4] & 0x80) /* !BENAND */) {
-			mtd->oobsize = 32 * mtd->writesize >> 9;
-		}
-
+	if (id_len >= 6 && chip->id.data[0] == NAND_MFR_TOSHIBA &&
+	    nand_is_slc(chip) &&
+	    (chip->id.data[5] & 0x7) == 0x6 /* 24nm */ &&
+	    !(chip->id.data[4] & 0x80) /* !BENAND */) {
+		mtd->oobsize = 32 * mtd->writesize >> 9;
 	}
 }
 EXPORT_SYMBOL_GPL(nand_decode_ext_id);
@@ -4339,15 +4288,11 @@ 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_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/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c
new file mode 100644
index 000000000000..547ce7c92031
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_hynix.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 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/rawnand.h>
+
+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/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index f4126c3a5a13..ec263a43279a 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -194,7 +194,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
 	{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/rawnand.h b/include/linux/mtd/rawnand.h
index d0312e924b4d..d35277d18799 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1159,6 +1159,7 @@ extern struct nand_flash_dev nand_flash_ids[];
 extern struct nand_manufacturers nand_manuf_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);
-- 
2.32.0

[PATCH v4 09/14] mtd: nand: Move Toshiba specific init/detection logic in nand_toshiba.c

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit 9b2d61f80b060c.

Move Toshiba specific initialization and detection logic into
nand_toshiba.c. This is part of the "separate vendor specific code from
core" cleanup process.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

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_toshiba.

 drivers/mtd/nand/raw/Makefile       |  3 +-
 drivers/mtd/nand/raw/nand_base.c    | 21 ++----------
 drivers/mtd/nand/raw/nand_ids.c     |  2 +-
 drivers/mtd/nand/raw/nand_toshiba.c | 53 +++++++++++++++++++++++++++++
 include/linux/mtd/rawnand.h         |  1 +
 5 files changed, 59 insertions(+), 21 deletions(-)
 create mode 100644 drivers/mtd/nand/raw/nand_toshiba.c

diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 86d9b8e8beb8..16e0775395a2 100644
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -14,7 +14,7 @@ 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-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_samsung.o
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.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)
@@ -33,6 +33,7 @@ obj-y += nand_ecc.o
 obj-y += nand_base.o
 obj-y += nand_hynix.o
 obj-y += nand_samsung.o
+obj-y += nand_toshiba.o
 obj-y += nand_timings.o
 
 endif # not spl
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 5698c1e6a229..4ea7f10a06fc 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4163,12 +4163,11 @@ static int nand_get_bits_per_cell(u8 cellinfo)
 void nand_decode_ext_id(struct nand_chip *chip)
 {
 	struct mtd_info *mtd = &chip->mtd;
-	int extid, id_len;
+	int extid;
 	/* The 3rd id byte holds MLC / multichip data */
 	chip->bits_per_cell = nand_get_bits_per_cell(chip->id.data[2]);
 	/* The 4th id byte is the important one */
 	extid = chip->id.data[3];
-	id_len = chip->id.len;
 
 	/* Calc pagesize */
 	mtd->writesize = 1024 << (extid & 0x03);
@@ -4184,21 +4183,6 @@ void nand_decode_ext_id(struct nand_chip *chip)
 	/* 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 && chip->id.data[0] == NAND_MFR_TOSHIBA &&
-	    nand_is_slc(chip) &&
-	    (chip->id.data[5] & 0x7) == 0x6 /* 24nm */ &&
-	    !(chip->id.data[4] & 0x80) /* !BENAND */) {
-		mtd->oobsize = 32 * mtd->writesize >> 9;
-	}
 }
 EXPORT_SYMBOL_GPL(nand_decode_ext_id);
 
@@ -4289,8 +4273,7 @@ static void nand_decode_bbm_options(struct mtd_info *mtd,
 	 * AMD/Spansion, and Macronix.  All others scan only the first page.
 	 */
 	if ((nand_is_slc(chip) &&
-	     (maf_id == NAND_MFR_TOSHIBA ||
-	      maf_id == NAND_MFR_AMD ||
+	     (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/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index ec263a43279a..509652c8e26c 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -188,7 +188,7 @@ struct nand_flash_dev nand_flash_ids[] = {
 
 /* Manufacturer IDs */
 struct nand_manufacturers nand_manuf_ids[] = {
-	{NAND_MFR_TOSHIBA, "Toshiba"},
+	{NAND_MFR_TOSHIBA, "Toshiba", &toshiba_nand_manuf_ops},
 	{NAND_MFR_SAMSUNG, "Samsung", &samsung_nand_manuf_ops},
 	{NAND_MFR_FUJITSU, "Fujitsu"},
 	{NAND_MFR_NATIONAL, "National"},
diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c
new file mode 100644
index 000000000000..f7426fa59f51
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_toshiba.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 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/bug.h>
+#include <linux/mtd/rawnand.h>
+
+static void toshiba_nand_decode_id(struct nand_chip *chip)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+
+	nand_decode_ext_id(chip);
+
+	/*
+	 * 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 (chip->id.len >= 6 && nand_is_slc(chip) &&
+	    (chip->id.data[5] & 0x7) == 0x6 /* 24nm */ &&
+	    !(chip->id.data[4] & 0x80) /* !BENAND */)
+		mtd->oobsize = 32 * mtd->writesize >> 9;
+}
+
+static int toshiba_nand_init(struct nand_chip *chip)
+{
+	if (nand_is_slc(chip))
+		chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
+
+	return 0;
+}
+
+const struct nand_manufacturer_ops toshiba_nand_manuf_ops = {
+	.detect = toshiba_nand_decode_id,
+	.init = toshiba_nand_init,
+};
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index d35277d18799..73abb3401649 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1158,6 +1158,7 @@ struct nand_manufacturers {
 extern struct nand_flash_dev nand_flash_ids[];
 extern struct nand_manufacturers nand_manuf_ids[];
 
+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;
 
-- 
2.32.0

[PATCH v4 10/14] mtd: nand: Move Micron specific init logic in nand_micron.c

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit 10d4e75c36f6c1.

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

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

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_micron.

 drivers/mtd/nand/raw/Makefile      |  3 +-
 drivers/mtd/nand/raw/nand_base.c   | 33 +-----------
 drivers/mtd/nand/raw/nand_ids.c    |  2 +-
 drivers/mtd/nand/raw/nand_micron.c | 87 ++++++++++++++++++++++++++++++
 include/linux/mtd/rawnand.h        | 21 +-------
 5 files changed, 93 insertions(+), 53 deletions(-)
 create mode 100644 drivers/mtd/nand/raw/nand_micron.c

diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 16e0775395a2..8ef30b45fd2d 100644
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -14,7 +14,7 @@ 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-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_samsung.o nand_toshiba.o
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_micron.o nand_samsung.o nand_toshiba.o
 obj-$(CONFIG_SPL_NAND_IDENT) += nand_ids.o nand_timings.o
 obj-$(CONFIG_TPL_NAND_INIT) += nand.o
 ifeq ($(CONFIG_SPL_ENV_SUPPORT),y)
@@ -32,6 +32,7 @@ obj-y += nand_util.o
 obj-y += nand_ecc.o
 obj-y += nand_base.o
 obj-y += nand_hynix.o
+obj-y += nand_micron.o
 obj-y += nand_samsung.o
 obj-y += nand_toshiba.o
 obj-y += nand_timings.o
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 4ea7f10a06fc..fe7e049d4064 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -3871,30 +3871,6 @@ ext_out:
 	return ret;
 }
 
-static int nand_setup_read_retry_micron(struct mtd_info *mtd, int retry_mode)
-{
-	struct nand_chip *chip = mtd_to_nand(mtd);
-	uint8_t feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode};
-
-	return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY,
-			feature);
-}
-
-/*
- * Configure chip properties from Micron vendor-specific ONFI table
- */
-static void nand_onfi_detect_micron(struct nand_chip *chip,
-		struct nand_onfi_params *p)
-{
-	struct nand_onfi_vendor_micron *micron = (void *)p->vendor;
-
-	if (le16_to_cpu(p->vendor_revision) < 1)
-		return;
-
-	chip->read_retries = micron->read_retry_options;
-	chip->setup_read_retry = nand_setup_read_retry_micron;
-}
-
 /*
  * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
  */
@@ -3994,9 +3970,6 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip)
 		pr_warn("Could not retrieve ONFI ECC requirements\n");
 	}
 
-	if (p->jedec_id == NAND_MFR_MICRON)
-		nand_onfi_detect_micron(chip, p);
-
 	return 1;
 }
 #else
@@ -4272,10 +4245,8 @@ 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)) ||
-	    (mtd->writesize == 2048 && maf_id == NAND_MFR_MICRON))
+	if (nand_is_slc(chip) &&
+	    (maf_id == NAND_MFR_AMD || 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 509652c8e26c..bb5ac8337fde 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -195,7 +195,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
 	{NAND_MFR_RENESAS, "Renesas"},
 	{NAND_MFR_STMICRO, "ST Micro"},
 	{NAND_MFR_HYNIX, "Hynix", &hynix_nand_manuf_ops},
-	{NAND_MFR_MICRON, "Micron"},
+	{NAND_MFR_MICRON, "Micron", &micron_nand_manuf_ops},
 	{NAND_MFR_AMD, "AMD/Spansion"},
 	{NAND_MFR_MACRONIX, "Macronix"},
 	{NAND_MFR_EON, "Eon"},
diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c
new file mode 100644
index 000000000000..8b31c6198134
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_micron.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 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/rawnand.h>
+
+struct nand_onfi_vendor_micron {
+	u8 two_plane_read;
+	u8 read_cache;
+	u8 read_unique_id;
+	u8 dq_imped;
+	u8 dq_imped_num_settings;
+	u8 dq_imped_feat_addr;
+	u8 rb_pulldown_strength;
+	u8 rb_pulldown_strength_feat_addr;
+	u8 rb_pulldown_strength_num_settings;
+	u8 otp_mode;
+	u8 otp_page_start;
+	u8 otp_data_prot_addr;
+	u8 otp_num_pages;
+	u8 otp_feat_addr;
+	u8 read_retry_options;
+	u8 reserved[72];
+	u8 param_revision;
+} __packed;
+
+static int micron_nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
+{
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	u8 feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode};
+
+	return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY,
+				       feature);
+}
+
+/*
+ * Configure chip properties from Micron vendor-specific ONFI table
+ */
+static int micron_nand_onfi_init(struct nand_chip *chip)
+{
+	struct nand_onfi_params *p = &chip->onfi_params;
+	struct nand_onfi_vendor_micron *micron = (void *)p->vendor;
+
+	if (!chip->onfi_version)
+		return 0;
+
+	if (le16_to_cpu(p->vendor_revision) < 1)
+		return 0;
+
+	chip->read_retries = micron->read_retry_options;
+	chip->setup_read_retry = micron_nand_setup_read_retry;
+
+	return 0;
+}
+
+static int micron_nand_init(struct nand_chip *chip)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+	int ret;
+
+	ret = micron_nand_onfi_init(chip);
+	if (ret)
+		return ret;
+
+	if (mtd->writesize == 2048)
+		chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
+
+	return 0;
+}
+
+const struct nand_manufacturer_ops micron_nand_manuf_ops = {
+	.init = micron_nand_init,
+};
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 73abb3401649..ec0f77b24bd6 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -388,26 +388,6 @@ struct onfi_ext_param_page {
 	 */
 } __packed;
 
-struct nand_onfi_vendor_micron {
-	u8 two_plane_read;
-	u8 read_cache;
-	u8 read_unique_id;
-	u8 dq_imped;
-	u8 dq_imped_num_settings;
-	u8 dq_imped_feat_addr;
-	u8 rb_pulldown_strength;
-	u8 rb_pulldown_strength_feat_addr;
-	u8 rb_pulldown_strength_num_settings;
-	u8 otp_mode;
-	u8 otp_page_start;
-	u8 otp_data_prot_addr;
-	u8 otp_num_pages;
-	u8 otp_feat_addr;
-	u8 read_retry_options;
-	u8 reserved[72];
-	u8 param_revision;
-} __packed;
-
 struct jedec_ecc_info {
 	u8 ecc_bits;
 	u8 codeword_size;
@@ -1161,6 +1141,7 @@ extern struct nand_manufacturers nand_manuf_ids[];
 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;
 
 int nand_default_bbt(struct mtd_info *mtd);
 int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);
-- 
2.32.0

[PATCH v4 11/14] mtd: nand: Move AMD/Spansion specific init/detection logic in nand_amd.c

[Dario Binacchi]

From: Michael Trimarchi <michael@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 <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

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.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/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", &micron_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

[PATCH v4 12/14] mtd: nand: Move Macronix specific initialization in nand_macronix.c

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit 3b5206f4be9b65.

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: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

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_macronix.

 drivers/mtd/nand/raw/Makefile        |  4 +++-
 drivers/mtd/nand/raw/nand_base.c     | 11 ----------
 drivers/mtd/nand/raw/nand_ids.c      |  2 +-
 drivers/mtd/nand/raw/nand_macronix.c | 31 ++++++++++++++++++++++++++++
 include/linux/mtd/rawnand.h          |  1 +
 5 files changed, 36 insertions(+), 13 deletions(-)
 create mode 100644 drivers/mtd/nand/raw/nand_macronix.c

diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 9c2ced9925d8..a398aa9d8864 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-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_amd.o nand_hynix.o nand_micron.o \
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_amd.o nand_hynix.o \
+				nand_macronix.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
@@ -34,6 +35,7 @@ obj-y += nand_ecc.o
 obj-y += nand_base.o
 obj-y += nand_amd.o
 obj-y += nand_hynix.o
+obj-y += nand_macronix.o
 obj-y += nand_micron.o
 obj-y += nand_samsung.o
 obj-y += nand_toshiba.o
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 68e6f4f14347..4b09a1128827 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4217,22 +4217,11 @@ static void nand_decode_id(struct nand_chip *chip, struct nand_flash_dev *type)
 static void nand_decode_bbm_options(struct mtd_info *mtd,
 				    struct nand_chip *chip)
 {
-	int maf_id = chip->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)
diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index c78f2e088040..7602dd30f169 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -197,7 +197,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
 	{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"},
diff --git a/drivers/mtd/nand/raw/nand_macronix.c b/drivers/mtd/nand/raw/nand_macronix.c
new file mode 100644
index 000000000000..dc972e590922
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_macronix.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 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/rawnand.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,
+};
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index bb1a359a9c14..aa45558b3d41 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1143,6 +1143,7 @@ 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);
-- 
2.32.0

[PATCH v4 13/14] mtd: nand: toshiba: Retrieve ECC requirements from extended ID

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit fb3bff5b407e58.

This patch enables support to read the ECC strength and size from the
NAND flash using Toshiba Memory SLC NAND extended-ID. This patch is
based on the information of the 6th ID byte of the Toshiba Memory SLC
NAND.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

Changes in v3:
- Use commit sha1 with 13 digits.

Changes in v2:
- Use short-commit form
- Remove linux info. Uboot seems that backport without add this
  extra information.

 drivers/mtd/nand/raw/nand_toshiba.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c
index f7426fa59f51..99dc44df671a 100644
--- a/drivers/mtd/nand/raw/nand_toshiba.c
+++ b/drivers/mtd/nand/raw/nand_toshiba.c
@@ -37,6 +37,32 @@ static void toshiba_nand_decode_id(struct nand_chip *chip)
 	    (chip->id.data[5] & 0x7) == 0x6 /* 24nm */ &&
 	    !(chip->id.data[4] & 0x80) /* !BENAND */)
 		mtd->oobsize = 32 * mtd->writesize >> 9;
+
+	/*
+	 * Extract ECC requirements from 6th id byte.
+	 * For Toshiba SLC, ecc requrements are as follows:
+	 *  - 43nm: 1 bit ECC for each 512Byte is required.
+	 *  - 32nm: 4 bit ECC for each 512Byte is required.
+	 *  - 24nm: 8 bit ECC for each 512Byte is required.
+	 */
+	if (chip->id.len >= 6 && nand_is_slc(chip)) {
+		chip->ecc_step_ds = 512;
+		switch (chip->id.data[5] & 0x7) {
+		case 0x4:
+			chip->ecc_strength_ds = 1;
+			break;
+		case 0x5:
+			chip->ecc_strength_ds = 4;
+			break;
+		case 0x6:
+			chip->ecc_strength_ds = 8;
+			break;
+		default:
+			WARN(1, "Could not get ECC info");
+			chip->ecc_step_ds = 0;
+			break;
+		}
+	}
 }
 
 static int toshiba_nand_init(struct nand_chip *chip)
-- 
2.32.0

[PATCH v4 14/14] mtd: decommission the NAND museum

[Dario Binacchi]

From: Michael Trimarchi <michael@amarulasolutions.com>

Upstream linux commit f7025a43a9da26.

The MTD subsystem has its own small museum of ancient NANDs in a form of
the CONFIG_MTD_NAND_MUSEUM_IDS configuration option. The museum contains
stone age NANDs with 256 bytes pages, as well as iron age NANDs with 512
bytes per page and up to 8MiB page size.

It is with great sorrow that I inform you that the museum is being
decommissioned. The MTD subsystem is out of budget for Kconfig options and
already has too many of them, and there is a general kernel trend to
simplify the configuration menu.

We remove the stone age exhibits along with closing the museum

REMARK Don't apply this part from upstream:

Some of the iron age ones are transferred to the regular NAND depot.
Namely, only those which have unique device IDs are transferred, and the
ones which have conflicting device IDs are removed.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

(no changes since v3)

Changes in v3:
- Use commit sha1 with 13 digits.
- Wrap commit description to a maximum of 75 chars.

Changes in v2:
- Use short-commit form.
- Remove linux info. Uboot seems that backport without add this
  extra information.

 drivers/mtd/nand/raw/nand_ids.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index 7602dd30f169..4dece1b20676 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -24,16 +24,6 @@
  * extended chip ID.
  */
 struct nand_flash_dev nand_flash_ids[] = {
-#ifdef CONFIG_MTD_NAND_MUSEUM_IDS
-	LEGACY_ID_NAND("NAND 1MiB 5V 8-bit",	0x6e, 1, SZ_4K, SP_OPTIONS),
-	LEGACY_ID_NAND("NAND 2MiB 5V 8-bit",	0x64, 2, SZ_4K, SP_OPTIONS),
-	LEGACY_ID_NAND("NAND 1MiB 3,3V 8-bit",	0xe8, 1, SZ_4K, SP_OPTIONS),
-	LEGACY_ID_NAND("NAND 1MiB 3,3V 8-bit",	0xec, 1, SZ_4K, SP_OPTIONS),
-	LEGACY_ID_NAND("NAND 2MiB 3,3V 8-bit",	0xea, 2, SZ_4K, SP_OPTIONS),
-	LEGACY_ID_NAND("NAND 4MiB 3,3V 8-bit",	0xd5, 4, SZ_8K, SP_OPTIONS),
-
-	LEGACY_ID_NAND("NAND 8MiB 3,3V 8-bit",	0xe6, 8, SZ_8K, SP_OPTIONS),
-#endif
 	/*
 	 * Some incompatible NAND chips share device ID's and so must be
 	 * listed by full ID. We list them first so that we can easily identify
-- 
2.32.0

Re: [PATCH v4 00/14] Port manufacturer specific initialization

[Michael Nazzareno Trimarchi]

Hi Dario

On Fri, Jul 22, 2022 at 6:11 PM Dario Binacchi
<dario.binacchi@amarulasolutions.com> wrote:
>
> In preparation of re-sync of mtd stack, we opt to move the current stack
> slowly in order to have a more easy sync and test. We would like to
> prepare uboot to support no-jedec and no-onfi compliant nand so we need
> to clean up a bit the code we have now and upstream some of the support.
> In this series we expect no functional change
>
> Tested on:
>  - imx6ull Micron   MT29F2G08ABAGAH4
>  - imx8mn  Macronix MX30LF4G18AC
>
> Changes in v4:
> - Add the patch "mtd: nand: Fix MediaTek MT7621 SoC build" to the series.
>
> Changes in v3:
> - Use commit sha1 with 13 digits.
> - Use commit sha1 with 13 digits.
> - Fix code style warnings raised by patman.
> - Use commit sha1 with 13 digits.
> - Fix code style warnings raised by patman.
> - Fix code style warnings raised by patman.
> - Use commit sha1 with 13 digits.
> - Fix code style warnings raised by patman.
> - Add the SPDX-License-Identifier tag.
> - Use commit sha1 with 13 digits.
> - Add the SPDX-License-Identifier tag.
> - Fix code style warnings raised by patman.
> - Use commit sha1 with 13 digits.
> - Add the SPDX-License-Identifier tag.
> - Fix code style warnings raised by patman.
> - Use commit sha1 with 13 digits.
> - Add the SPDX-License-Identifier tag.
> - Fix code style warnings raised by patman.
> - Use commit sha1 with 13 digits.
> - Add the SPDX-License-Identifier tag.
> - Fix code style warnings raised by patman.
> - Use commit sha1 with 13 digits.
> - Add the SPDX-License-Identifier tag.
> - Fix code style warnings raised by patman.
> - Use commit sha1 with 13 digits.
> - Use commit sha1 with 13 digits.
> - Wrap commit description to a maximum of 75 chars.
>
> Changes in v2:
> - Use short-commit form.
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Use short-commit form.
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Use short-commit form.
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Use short-commit form.
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Adjust the include file in nand_samsung.
> - Use short-commit form
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Adjust the include file in nand_hynix.
> - Use short-commit form
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Adjust the include file in nand_toshiba.
> - Use short-commit form
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Adjust the include file in nand_micron.
> - Use short-commit form
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Adjust the include file in nand_amd.
> - Use short-commit form
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Adjust the include file in nand_macronix.
> - Use short-commit form
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
> - Use short-commit form.
> - Remove linux info. Uboot seems that backport without add this
>   extra information.
>
> Michael Trimarchi (14):
>   mtd: nand: Get rid of busw parameter
>   mtd: nand: Store nand ID in struct nand_chip
>   mtd: nand: Add manufacturer specific initialization/detection steps
>   mtd: nand: Get rid of mtd variable in function calls
>   mtd: nand: Fix MediaTek MT7621 SoC build
>   mtd: nand: Export symbol nand_decode_ext_id
>   mtd: nand: Move Samsung specific init/detection logic in
>     nand_samsung.c
>   mtd: nand: Move Hynix specific init/detection logic in nand_hynix.c
>   mtd: nand: Move Toshiba specific init/detection logic in
>     nand_toshiba.c
>   mtd: nand: Move Micron specific init logic in nand_micron.c
>   mtd: nand: Move AMD/Spansion specific init/detection logic in
>     nand_amd.c
>   mtd: nand: Move Macronix specific initialization in nand_macronix.c
>   mtd: nand: toshiba: Retrieve ECC requirements from extended ID
>   mtd: decommission the NAND museum
>
>  drivers/mtd/nand/raw/Makefile        |  10 +-
>  drivers/mtd/nand/raw/mt7621_nand.c   |   2 +-
>  drivers/mtd/nand/raw/nand_amd.c      |  52 ++++
>  drivers/mtd/nand/raw/nand_base.c     | 370 ++++++++++-----------------
>  drivers/mtd/nand/raw/nand_hynix.c    |  85 ++++++
>  drivers/mtd/nand/raw/nand_ids.c      |  24 +-
>  drivers/mtd/nand/raw/nand_macronix.c |  31 +++
>  drivers/mtd/nand/raw/nand_micron.c   |  87 +++++++
>  drivers/mtd/nand/raw/nand_samsung.c  |  90 +++++++
>  drivers/mtd/nand/raw/nand_toshiba.c  |  79 ++++++
>  include/linux/mtd/rawnand.h          |  78 ++++--
>  11 files changed, 626 insertions(+), 282 deletions(-)
>  create mode 100644 drivers/mtd/nand/raw/nand_amd.c
>  create mode 100644 drivers/mtd/nand/raw/nand_hynix.c
>  create mode 100644 drivers/mtd/nand/raw/nand_macronix.c
>  create mode 100644 drivers/mtd/nand/raw/nand_micron.c
>  create mode 100644 drivers/mtd/nand/raw/nand_samsung.c
>  create mode 100644 drivers/mtd/nand/raw/nand_toshiba.c
>
> --
> 2.32.0
>

Applied thanks.

-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael@amarulasolutions.com
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