linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH v2 0/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND
@ 2020-02-28  3:11 Yoshio Furuyama
  2020-02-28  3:11 ` [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit) Yoshio Furuyama
  2020-02-28  3:12 ` [PATCH v2 2/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND Yoshio Furuyama
  0 siblings, 2 replies; 7+ messages in thread
From: Yoshio Furuyama @ 2020-02-28  3:11 UTC (permalink / raw)
  To: miquel.raynal, vigneshr; +Cc: linux-kernel, linux-mtd

First patch is to rename function name becase of add new device.
Second patch is to supprot for new device.

Yoshio Furuyama (2):
  mtd: spinand: toshiba: Rename function name to change suffix and
    prefix (8Gbit)
  mtd: spinand: toshiba: Support for new Kioxia Serial NAND

 drivers/mtd/nand/spi/toshiba.c | 173 +++++++++++++++++++++++++++++++----------
 1 file changed, 130 insertions(+), 43 deletions(-)

-- 
1.9.1


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit)
  2020-02-28  3:11 [PATCH v2 0/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND Yoshio Furuyama
@ 2020-02-28  3:11 ` Yoshio Furuyama
  2020-03-02  8:02   ` Schrempf Frieder
  2020-02-28  3:12 ` [PATCH v2 2/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND Yoshio Furuyama
  1 sibling, 1 reply; 7+ messages in thread
From: Yoshio Furuyama @ 2020-02-28  3:11 UTC (permalink / raw)
  To: miquel.raynal, vigneshr; +Cc: linux-kernel, linux-mtd

The suffix was changed to classify from "g" to "j" between 1st generation
device and 2nd generation device that's new Serial NAND of Kioxia brand.
As reference that's
1st generation device of 1Gbit product is "tc58cvg0s3hraig"
2nd generation device of 1Gbit product is "tc58cvg0s3hraij".

The 8Gbit product "TH58CxG3S0HRAIJ" is new line up of Kioxia's serial nand
and changed the prefix from tc58 to th58.
Thus it was changed argument to the function from "tc58cxgxsx" to
"tx58cxgxsxraix".

Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
---
changelog[v2]:Split 2 patches, and add patch description.

 drivers/mtd/nand/spi/toshiba.c | 60 +++++++++++++++++++++---------------------
 1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/drivers/mtd/nand/spi/toshiba.c b/drivers/mtd/nand/spi/toshiba.c
index 0db5ee4..700d86f 100644
--- a/drivers/mtd/nand/spi/toshiba.c
+++ b/drivers/mtd/nand/spi/toshiba.c
@@ -25,8 +25,8 @@ static SPINAND_OP_VARIANTS(write_cache_variants,
 static SPINAND_OP_VARIANTS(update_cache_variants,
 		SPINAND_PROG_LOAD(false, 0, NULL, 0));
 
-static int tc58cxgxsx_ooblayout_ecc(struct mtd_info *mtd, int section,
-				     struct mtd_oob_region *region)
+static int tx58cxgxsxraix_ooblayout_ecc(struct mtd_info *mtd, int section,
+					struct mtd_oob_region *region)
 {
 	if (section > 0)
 		return -ERANGE;
@@ -37,8 +37,8 @@ static int tc58cxgxsx_ooblayout_ecc(struct mtd_info *mtd, int section,
 	return 0;
 }
 
-static int tc58cxgxsx_ooblayout_free(struct mtd_info *mtd, int section,
-				      struct mtd_oob_region *region)
+static int tx58cxgxsxraix_ooblayout_free(struct mtd_info *mtd, int section,
+					 struct mtd_oob_region *region)
 {
 	if (section > 0)
 		return -ERANGE;
@@ -50,13 +50,13 @@ static int tc58cxgxsx_ooblayout_free(struct mtd_info *mtd, int section,
 	return 0;
 }
 
-static const struct mtd_ooblayout_ops tc58cxgxsx_ooblayout = {
-	.ecc = tc58cxgxsx_ooblayout_ecc,
-	.free = tc58cxgxsx_ooblayout_free,
+static const struct mtd_ooblayout_ops tx58cxgxsxraix_ooblayout = {
+	.ecc = tx58cxgxsxraix_ooblayout_ecc,
+	.free = tx58cxgxsxraix_ooblayout_free,
 };
 
-static int tc58cxgxsx_ecc_get_status(struct spinand_device *spinand,
-				      u8 status)
+static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
+					 u8 status)
 {
 	struct nand_device *nand = spinand_to_nand(spinand);
 	u8 mbf = 0;
@@ -95,75 +95,75 @@ static int tc58cxgxsx_ecc_get_status(struct spinand_device *spinand,
 
 static const struct spinand_info toshiba_spinand_table[] = {
 	/* 3.3V 1Gb */
-	SPINAND_INFO("TC58CVG0S3", 0xC2,
+	SPINAND_INFO("TC58CVG0S3HRAIG", 0xC2,
 		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     0,
-		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
-				     tc58cxgxsx_ecc_get_status)),
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 	/* 3.3V 2Gb */
-	SPINAND_INFO("TC58CVG1S3", 0xCB,
+	SPINAND_INFO("TC58CVG1S3HRAIG", 0xCB,
 		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     0,
-		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
-				     tc58cxgxsx_ecc_get_status)),
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 	/* 3.3V 4Gb */
-	SPINAND_INFO("TC58CVG2S0", 0xCD,
+	SPINAND_INFO("TC58CVG2S0HRAIG", 0xCD,
 		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     0,
-		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
-				     tc58cxgxsx_ecc_get_status)),
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 	/* 3.3V 4Gb */
-	SPINAND_INFO("TC58CVG2S0", 0xED,
+	SPINAND_INFO("TC58CVG2S0HRAIJ", 0xED,
 		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     0,
-		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
-				     tc58cxgxsx_ecc_get_status)),
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 	/* 1.8V 1Gb */
-	SPINAND_INFO("TC58CYG0S3", 0xB2,
+	SPINAND_INFO("TC58CYG0S3HRAIG", 0xB2,
 		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     0,
-		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
-				     tc58cxgxsx_ecc_get_status)),
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 	/* 1.8V 2Gb */
-	SPINAND_INFO("TC58CYG1S3", 0xBB,
+	SPINAND_INFO("TC58CYG1S3HRAIG", 0xBB,
 		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     0,
-		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
-				     tc58cxgxsx_ecc_get_status)),
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 	/* 1.8V 4Gb */
-	SPINAND_INFO("TC58CYG2S0", 0xBD,
+	SPINAND_INFO("TC58CYG2S0HRAIG", 0xBD,
 		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     0,
-		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
-				     tc58cxgxsx_ecc_get_status)),
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 };
 
 static int toshiba_spinand_detect(struct spinand_device *spinand)
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 7+ messages in thread

* [PATCH v2 2/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND
  2020-02-28  3:11 [PATCH v2 0/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND Yoshio Furuyama
  2020-02-28  3:11 ` [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit) Yoshio Furuyama
@ 2020-02-28  3:12 ` Yoshio Furuyama
  2020-03-02  8:03   ` Schrempf Frieder
  1 sibling, 1 reply; 7+ messages in thread
From: Yoshio Furuyama @ 2020-02-28  3:12 UTC (permalink / raw)
  To: miquel.raynal, vigneshr; +Cc: linux-kernel, linux-mtd

Add support for new Kioxia products.
The new Kioxia products support program load x4 command, and have
HOLD_D bit which is equivalent to QE bit.

Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
---
changelog[v2]:Split 2 patches.

 drivers/mtd/nand/spi/toshiba.c | 119 +++++++++++++++++++++++++++++++++++------
 1 file changed, 103 insertions(+), 16 deletions(-)

diff --git a/drivers/mtd/nand/spi/toshiba.c b/drivers/mtd/nand/spi/toshiba.c
index 700d86f..505f9f5 100644
--- a/drivers/mtd/nand/spi/toshiba.c
+++ b/drivers/mtd/nand/spi/toshiba.c
@@ -19,6 +19,18 @@ static SPINAND_OP_VARIANTS(read_cache_variants,
 		SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
 		SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
 
+static SPINAND_OP_VARIANTS(write_cache_x4_variants,
+		SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
+		SPINAND_PROG_LOAD(true, 0, NULL, 0));
+
+static SPINAND_OP_VARIANTS(update_cache_x4_variants,
+		SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
+		SPINAND_PROG_LOAD(false, 0, NULL, 0));
+
+/**
+ * Backward compatibility for 1st generation Serial NAND devices
+ * which don't support Quad Program Load operation.
+ */
 static SPINAND_OP_VARIANTS(write_cache_variants,
 		SPINAND_PROG_LOAD(true, 0, NULL, 0));
 
@@ -94,7 +106,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
 }
 
 static const struct spinand_info toshiba_spinand_table[] = {
-	/* 3.3V 1Gb */
+	/* 3.3V 1Gb (1st generation) */
 	SPINAND_INFO("TC58CVG0S3HRAIG", 0xC2,
 		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
@@ -104,7 +116,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
 		     0,
 		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
 				     tx58cxgxsxraix_ecc_get_status)),
-	/* 3.3V 2Gb */
+	/* 3.3V 2Gb (1st generation) */
 	SPINAND_INFO("TC58CVG1S3HRAIG", 0xCB,
 		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
@@ -114,7 +126,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
 		     0,
 		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
 				     tx58cxgxsxraix_ecc_get_status)),
-	/* 3.3V 4Gb */
+	/* 3.3V 4Gb (1st generation) */
 	SPINAND_INFO("TC58CVG2S0HRAIG", 0xCD,
 		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
@@ -124,17 +136,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
 		     0,
 		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
 				     tx58cxgxsxraix_ecc_get_status)),
-	/* 3.3V 4Gb */
-	SPINAND_INFO("TC58CVG2S0HRAIJ", 0xED,
-		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
-		     NAND_ECCREQ(8, 512),
-		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
-					      &write_cache_variants,
-					      &update_cache_variants),
-		     0,
-		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
-				     tx58cxgxsxraix_ecc_get_status)),
-	/* 1.8V 1Gb */
+	/* 1.8V 1Gb (1st generation) */
 	SPINAND_INFO("TC58CYG0S3HRAIG", 0xB2,
 		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
@@ -144,7 +146,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
 		     0,
 		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
 				     tx58cxgxsxraix_ecc_get_status)),
-	/* 1.8V 2Gb */
+	/* 1.8V 2Gb (1st generation) */
 	SPINAND_INFO("TC58CYG1S3HRAIG", 0xBB,
 		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
@@ -154,7 +156,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
 		     0,
 		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
 				     tx58cxgxsxraix_ecc_get_status)),
-	/* 1.8V 4Gb */
+	/* 1.8V 4Gb (1st generation) */
 	SPINAND_INFO("TC58CYG2S0HRAIG", 0xBD,
 		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
@@ -164,6 +166,91 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
 		     0,
 		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
 				     tx58cxgxsxraix_ecc_get_status)),
+
+	/*
+	 * 2nd generation serial nand has HOLD_D which is equivalent to
+	 * QE_BIT.
+	 */
+	/* 3.3V 1Gb (2nd generation) */
+	SPINAND_INFO("TC58CVG0S3HRAIJ", 0xE2,
+		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
+	/* 3.3V 2Gb (2nd generation) */
+	SPINAND_INFO("TC58CVG1S3HRAIJ", 0xEB,
+		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
+	/* 3.3V 4Gb (2nd generation) */
+	SPINAND_INFO("TC58CVG2S0HRAIJ", 0xED,
+		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
+	/* 3.3V 8Gb (2nd generation) */
+	SPINAND_INFO("TH58CVG3S0HRAIJ", 0xE4,
+		     NAND_MEMORG(1, 4096, 256, 64, 4096, 80, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
+	/* 1.8V 1Gb (2nd generation) */
+	SPINAND_INFO("TC58CYG0S3HRAIJ", 0xD2,
+		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
+	/* 1.8V 2Gb (2nd generation) */
+	SPINAND_INFO("TC58CYG1S3HRAIJ", 0xDB,
+		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
+	/* 1.8V 4Gb (2nd generation) */
+	SPINAND_INFO("TC58CYG2S0HRAIJ", 0xDD,
+		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
+	/* 1.8V 8Gb (2nd generation) */
+	SPINAND_INFO("TH58CYG3S0HRAIJ", 0xD4,
+		     NAND_MEMORG(1, 4096, 256, 64, 4096, 80, 1, 1, 1),
+		     NAND_ECCREQ(8, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+					      &write_cache_x4_variants,
+					      &update_cache_x4_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
+				     tx58cxgxsxraix_ecc_get_status)),
 };
 
 static int toshiba_spinand_detect(struct spinand_device *spinand)
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 7+ messages in thread

* Re: [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit)
  2020-02-28  3:11 ` [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit) Yoshio Furuyama
@ 2020-03-02  8:02   ` Schrempf Frieder
  2020-03-02  9:12     ` Miquel Raynal
  0 siblings, 1 reply; 7+ messages in thread
From: Schrempf Frieder @ 2020-03-02  8:02 UTC (permalink / raw)
  To: Yoshio Furuyama, miquel.raynal, vigneshr; +Cc: linux-mtd, linux-kernel

On 28.02.20 04:11, Yoshio Furuyama wrote:
> The suffix was changed to classify from "g" to "j" between 1st generation
> device and 2nd generation device that's new Serial NAND of Kioxia brand.

I had to read this sentence multiple times to understand it. Maybe 
something like this would be better:

   The suffix was changed from "g" to "j" to classify between 1st
   generation and 2nd generation serial NAND devices (which now belong to
   the Kioxia brand).

> As reference that's
> 1st generation device of 1Gbit product is "tc58cvg0s3hraig"
> 2nd generation device of 1Gbit product is "tc58cvg0s3hraij".
> 
> The 8Gbit product "TH58CxG3S0HRAIJ" is new line up of Kioxia's serial nand
> and changed the prefix from tc58 to th58.
> Thus it was changed argument to the function from "tc58cxgxsx" to
> "tx58cxgxsxraix".

Same here. It is very hard to read. I would write something like this:

   The 8Gbit type "TH58CxG3S0HRAIJ" is new to Kioxia's serial NAND lineup
   and the prefix was changed from "TC58" to "TH85".

   Thus the functions were renamed from tc58cxgxsx_*() to
   tx58cxgxsxraix_*().

With an easier to understand commit message:

Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>

> 
> Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
> ---
> changelog[v2]:Split 2 patches, and add patch description.
> 
>   drivers/mtd/nand/spi/toshiba.c | 60 +++++++++++++++++++++---------------------
>   1 file changed, 30 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/mtd/nand/spi/toshiba.c b/drivers/mtd/nand/spi/toshiba.c
> index 0db5ee4..700d86f 100644
> --- a/drivers/mtd/nand/spi/toshiba.c
> +++ b/drivers/mtd/nand/spi/toshiba.c
> @@ -25,8 +25,8 @@ static SPINAND_OP_VARIANTS(write_cache_variants,
>   static SPINAND_OP_VARIANTS(update_cache_variants,
>   		SPINAND_PROG_LOAD(false, 0, NULL, 0));
>   
> -static int tc58cxgxsx_ooblayout_ecc(struct mtd_info *mtd, int section,
> -				     struct mtd_oob_region *region)
> +static int tx58cxgxsxraix_ooblayout_ecc(struct mtd_info *mtd, int section,
> +					struct mtd_oob_region *region)
>   {
>   	if (section > 0)
>   		return -ERANGE;
> @@ -37,8 +37,8 @@ static int tc58cxgxsx_ooblayout_ecc(struct mtd_info *mtd, int section,
>   	return 0;
>   }
>   
> -static int tc58cxgxsx_ooblayout_free(struct mtd_info *mtd, int section,
> -				      struct mtd_oob_region *region)
> +static int tx58cxgxsxraix_ooblayout_free(struct mtd_info *mtd, int section,
> +					 struct mtd_oob_region *region)
>   {
>   	if (section > 0)
>   		return -ERANGE;
> @@ -50,13 +50,13 @@ static int tc58cxgxsx_ooblayout_free(struct mtd_info *mtd, int section,
>   	return 0;
>   }
>   
> -static const struct mtd_ooblayout_ops tc58cxgxsx_ooblayout = {
> -	.ecc = tc58cxgxsx_ooblayout_ecc,
> -	.free = tc58cxgxsx_ooblayout_free,
> +static const struct mtd_ooblayout_ops tx58cxgxsxraix_ooblayout = {
> +	.ecc = tx58cxgxsxraix_ooblayout_ecc,
> +	.free = tx58cxgxsxraix_ooblayout_free,
>   };
>   
> -static int tc58cxgxsx_ecc_get_status(struct spinand_device *spinand,
> -				      u8 status)
> +static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
> +					 u8 status)
>   {
>   	struct nand_device *nand = spinand_to_nand(spinand);
>   	u8 mbf = 0;
> @@ -95,75 +95,75 @@ static int tc58cxgxsx_ecc_get_status(struct spinand_device *spinand,
>   
>   static const struct spinand_info toshiba_spinand_table[] = {
>   	/* 3.3V 1Gb */
> -	SPINAND_INFO("TC58CVG0S3", 0xC2,
> +	SPINAND_INFO("TC58CVG0S3HRAIG", 0xC2,
>   		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
>   		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>   					      &write_cache_variants,
>   					      &update_cache_variants),
>   		     0,
> -		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> -				     tc58cxgxsx_ecc_get_status)),
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   	/* 3.3V 2Gb */
> -	SPINAND_INFO("TC58CVG1S3", 0xCB,
> +	SPINAND_INFO("TC58CVG1S3HRAIG", 0xCB,
>   		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
>   		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>   					      &write_cache_variants,
>   					      &update_cache_variants),
>   		     0,
> -		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> -				     tc58cxgxsx_ecc_get_status)),
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   	/* 3.3V 4Gb */
> -	SPINAND_INFO("TC58CVG2S0", 0xCD,
> +	SPINAND_INFO("TC58CVG2S0HRAIG", 0xCD,
>   		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
>   		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>   					      &write_cache_variants,
>   					      &update_cache_variants),
>   		     0,
> -		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> -				     tc58cxgxsx_ecc_get_status)),
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   	/* 3.3V 4Gb */
> -	SPINAND_INFO("TC58CVG2S0", 0xED,
> +	SPINAND_INFO("TC58CVG2S0HRAIJ", 0xED,
>   		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
>   		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>   					      &write_cache_variants,
>   					      &update_cache_variants),
>   		     0,
> -		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> -				     tc58cxgxsx_ecc_get_status)),
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   	/* 1.8V 1Gb */
> -	SPINAND_INFO("TC58CYG0S3", 0xB2,
> +	SPINAND_INFO("TC58CYG0S3HRAIG", 0xB2,
>   		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
>   		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>   					      &write_cache_variants,
>   					      &update_cache_variants),
>   		     0,
> -		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> -				     tc58cxgxsx_ecc_get_status)),
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   	/* 1.8V 2Gb */
> -	SPINAND_INFO("TC58CYG1S3", 0xBB,
> +	SPINAND_INFO("TC58CYG1S3HRAIG", 0xBB,
>   		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
>   		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>   					      &write_cache_variants,
>   					      &update_cache_variants),
>   		     0,
> -		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> -				     tc58cxgxsx_ecc_get_status)),
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   	/* 1.8V 4Gb */
> -	SPINAND_INFO("TC58CYG2S0", 0xBD,
> +	SPINAND_INFO("TC58CYG2S0HRAIG", 0xBD,
>   		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
>   		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>   					      &write_cache_variants,
>   					      &update_cache_variants),
>   		     0,
> -		     SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> -				     tc58cxgxsx_ecc_get_status)),
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   };
>   
>   static int toshiba_spinand_detect(struct spinand_device *spinand)
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH v2 2/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND
  2020-02-28  3:12 ` [PATCH v2 2/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND Yoshio Furuyama
@ 2020-03-02  8:03   ` Schrempf Frieder
  0 siblings, 0 replies; 7+ messages in thread
From: Schrempf Frieder @ 2020-03-02  8:03 UTC (permalink / raw)
  To: Yoshio Furuyama, miquel.raynal, vigneshr; +Cc: linux-mtd, linux-kernel

On 28.02.20 04:12, Yoshio Furuyama wrote:
> Add support for new Kioxia products.
> The new Kioxia products support program load x4 command, and have
> HOLD_D bit which is equivalent to QE bit.
> 
> Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>

Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>

> ---
> changelog[v2]:Split 2 patches.
> 
>   drivers/mtd/nand/spi/toshiba.c | 119 +++++++++++++++++++++++++++++++++++------
>   1 file changed, 103 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/mtd/nand/spi/toshiba.c b/drivers/mtd/nand/spi/toshiba.c
> index 700d86f..505f9f5 100644
> --- a/drivers/mtd/nand/spi/toshiba.c
> +++ b/drivers/mtd/nand/spi/toshiba.c
> @@ -19,6 +19,18 @@ static SPINAND_OP_VARIANTS(read_cache_variants,
>   		SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
>   		SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
>   
> +static SPINAND_OP_VARIANTS(write_cache_x4_variants,
> +		SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
> +		SPINAND_PROG_LOAD(true, 0, NULL, 0));
> +
> +static SPINAND_OP_VARIANTS(update_cache_x4_variants,
> +		SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
> +		SPINAND_PROG_LOAD(false, 0, NULL, 0));
> +
> +/**
> + * Backward compatibility for 1st generation Serial NAND devices
> + * which don't support Quad Program Load operation.
> + */
>   static SPINAND_OP_VARIANTS(write_cache_variants,
>   		SPINAND_PROG_LOAD(true, 0, NULL, 0));
>   
> @@ -94,7 +106,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
>   }
>   
>   static const struct spinand_info toshiba_spinand_table[] = {
> -	/* 3.3V 1Gb */
> +	/* 3.3V 1Gb (1st generation) */
>   	SPINAND_INFO("TC58CVG0S3HRAIG", 0xC2,
>   		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
> @@ -104,7 +116,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
>   		     0,
>   		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
>   				     tx58cxgxsxraix_ecc_get_status)),
> -	/* 3.3V 2Gb */
> +	/* 3.3V 2Gb (1st generation) */
>   	SPINAND_INFO("TC58CVG1S3HRAIG", 0xCB,
>   		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
> @@ -114,7 +126,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
>   		     0,
>   		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
>   				     tx58cxgxsxraix_ecc_get_status)),
> -	/* 3.3V 4Gb */
> +	/* 3.3V 4Gb (1st generation) */
>   	SPINAND_INFO("TC58CVG2S0HRAIG", 0xCD,
>   		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
> @@ -124,17 +136,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
>   		     0,
>   		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
>   				     tx58cxgxsxraix_ecc_get_status)),
> -	/* 3.3V 4Gb */
> -	SPINAND_INFO("TC58CVG2S0HRAIJ", 0xED,
> -		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
> -		     NAND_ECCREQ(8, 512),
> -		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> -					      &write_cache_variants,
> -					      &update_cache_variants),
> -		     0,
> -		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> -				     tx58cxgxsxraix_ecc_get_status)),
> -	/* 1.8V 1Gb */
> +	/* 1.8V 1Gb (1st generation) */
>   	SPINAND_INFO("TC58CYG0S3HRAIG", 0xB2,
>   		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
> @@ -144,7 +146,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
>   		     0,
>   		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
>   				     tx58cxgxsxraix_ecc_get_status)),
> -	/* 1.8V 2Gb */
> +	/* 1.8V 2Gb (1st generation) */
>   	SPINAND_INFO("TC58CYG1S3HRAIG", 0xBB,
>   		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
> @@ -154,7 +156,7 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
>   		     0,
>   		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
>   				     tx58cxgxsxraix_ecc_get_status)),
> -	/* 1.8V 4Gb */
> +	/* 1.8V 4Gb (1st generation) */
>   	SPINAND_INFO("TC58CYG2S0HRAIG", 0xBD,
>   		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
>   		     NAND_ECCREQ(8, 512),
> @@ -164,6 +166,91 @@ static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
>   		     0,
>   		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
>   				     tx58cxgxsxraix_ecc_get_status)),
> +
> +	/*
> +	 * 2nd generation serial nand has HOLD_D which is equivalent to
> +	 * QE_BIT.
> +	 */
> +	/* 3.3V 1Gb (2nd generation) */
> +	SPINAND_INFO("TC58CVG0S3HRAIJ", 0xE2,
> +		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
> +	/* 3.3V 2Gb (2nd generation) */
> +	SPINAND_INFO("TC58CVG1S3HRAIJ", 0xEB,
> +		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
> +	/* 3.3V 4Gb (2nd generation) */
> +	SPINAND_INFO("TC58CVG2S0HRAIJ", 0xED,
> +		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
> +	/* 3.3V 8Gb (2nd generation) */
> +	SPINAND_INFO("TH58CVG3S0HRAIJ", 0xE4,
> +		     NAND_MEMORG(1, 4096, 256, 64, 4096, 80, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
> +	/* 1.8V 1Gb (2nd generation) */
> +	SPINAND_INFO("TC58CYG0S3HRAIJ", 0xD2,
> +		     NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
> +	/* 1.8V 2Gb (2nd generation) */
> +	SPINAND_INFO("TC58CYG1S3HRAIJ", 0xDB,
> +		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
> +	/* 1.8V 4Gb (2nd generation) */
> +	SPINAND_INFO("TC58CYG2S0HRAIJ", 0xDD,
> +		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
> +	/* 1.8V 8Gb (2nd generation) */
> +	SPINAND_INFO("TH58CYG3S0HRAIJ", 0xD4,
> +		     NAND_MEMORG(1, 4096, 256, 64, 4096, 80, 1, 1, 1),
> +		     NAND_ECCREQ(8, 512),
> +		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> +					      &write_cache_x4_variants,
> +					      &update_cache_x4_variants),
> +		     SPINAND_HAS_QE_BIT,
> +		     SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> +				     tx58cxgxsxraix_ecc_get_status)),
>   };
>   
>   static int toshiba_spinand_detect(struct spinand_device *spinand)
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit)
  2020-03-02  8:02   ` Schrempf Frieder
@ 2020-03-02  9:12     ` Miquel Raynal
  2020-03-05  2:43       ` Yoshio Furuyama
  0 siblings, 1 reply; 7+ messages in thread
From: Miquel Raynal @ 2020-03-02  9:12 UTC (permalink / raw)
  To: Schrempf Frieder; +Cc: Yoshio Furuyama, vigneshr, linux-mtd, linux-kernel

Hello,

Schrempf Frieder <frieder.schrempf@kontron.de> wrote on Mon, 2 Mar 2020
08:02:25 +0000:

> On 28.02.20 04:11, Yoshio Furuyama wrote:
> > The suffix was changed to classify from "g" to "j" between 1st generation
> > device and 2nd generation device that's new Serial NAND of Kioxia brand.  
> 
> I had to read this sentence multiple times to understand it. Maybe 
> something like this would be better:
> 
>    The suffix was changed from "g" to "j" to classify between 1st
>    generation and 2nd generation serial NAND devices (which now belong to
>    the Kioxia brand).
> 
> > As reference that's
> > 1st generation device of 1Gbit product is "tc58cvg0s3hraig"
> > 2nd generation device of 1Gbit product is "tc58cvg0s3hraij".
> > 
> > The 8Gbit product "TH58CxG3S0HRAIJ" is new line up of Kioxia's serial nand
> > and changed the prefix from tc58 to th58.
> > Thus it was changed argument to the function from "tc58cxgxsx" to
> > "tx58cxgxsxraix".  
> 
> Same here. It is very hard to read. I would write something like this:
> 
>    The 8Gbit type "TH58CxG3S0HRAIJ" is new to Kioxia's serial NAND lineup
>    and the prefix was changed from "TC58" to "TH85".
> 
>    Thus the functions were renamed from tc58cxgxsx_*() to
>    tx58cxgxsxraix_*().
> 
> With an easier to understand commit message:
> 
> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>

Agreed, the commit log proposal from Frieder looks better.

The rest of the patch is fine by me though.

Thanks,
Miquèl

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit)
  2020-03-02  9:12     ` Miquel Raynal
@ 2020-03-05  2:43       ` Yoshio Furuyama
  0 siblings, 0 replies; 7+ messages in thread
From: Yoshio Furuyama @ 2020-03-05  2:43 UTC (permalink / raw)
  To: Miquel Raynal, Schrempf Frieder; +Cc: vigneshr, linux-mtd, linux-kernel


On 2020/03/02 18:12, Miquel Raynal wrote:
> Hello,
>
> Schrempf Frieder <frieder.schrempf@kontron.de> wrote on Mon, 2 Mar 2020
> 08:02:25 +0000:
>
>> On 28.02.20 04:11, Yoshio Furuyama wrote:
>>> The suffix was changed to classify from "g" to "j" between 1st generation
>>> device and 2nd generation device that's new Serial NAND of Kioxia brand.
>> I had to read this sentence multiple times to understand it. Maybe
>> something like this would be better:
>>
>>     The suffix was changed from "g" to "j" to classify between 1st
>>     generation and 2nd generation serial NAND devices (which now belong to
>>     the Kioxia brand).
Thanks comment,     I will send revise rev.
>>> As reference that's
>>> 1st generation device of 1Gbit product is "tc58cvg0s3hraig"
>>> 2nd generation device of 1Gbit product is "tc58cvg0s3hraij".
>>>
>>> The 8Gbit product "TH58CxG3S0HRAIJ" is new line up of Kioxia's serial nand
>>> and changed the prefix from tc58 to th58.
>>> Thus it was changed argument to the function from "tc58cxgxsx" to
>>> "tx58cxgxsxraix".
>> Same here. It is very hard to read. I would write something like this:
>>
>>     The 8Gbit type "TH58CxG3S0HRAIJ" is new to Kioxia's serial NAND lineup
>>     and the prefix was changed from "TC58" to "TH85".
>>
>>     Thus the functions were renamed from tc58cxgxsx_*() to
>>     tx58cxgxsxraix_*().

I will change prefix from "TH85" to "TH58" .  Since this is typo.

    The 8Gbit type "TH58CxG3S0HRAIJ" is new to Kioxia's serial NAND lineup
    and the prefix was changed from "TC58" to "TH58".

    Thus the functions were renamed from tc58cxgxsx_*() to
    tx58cxgxsxraix_*().

Thanks,

>> With an easier to understand commit message:
>>
>> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
> Agreed, the commit log proposal from Frieder looks better.
>
> The rest of the patch is fine by me though.
>
> Thanks,
> Miquèl
>
>

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2020-03-05  2:43 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-28  3:11 [PATCH v2 0/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND Yoshio Furuyama
2020-02-28  3:11 ` [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit) Yoshio Furuyama
2020-03-02  8:02   ` Schrempf Frieder
2020-03-02  9:12     ` Miquel Raynal
2020-03-05  2:43       ` Yoshio Furuyama
2020-02-28  3:12 ` [PATCH v2 2/2] mtd: spinand: toshiba: Support for new Kioxia Serial NAND Yoshio Furuyama
2020-03-02  8:03   ` Schrempf Frieder

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).