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Message-Id: <20240306041532.16985-1-kr.kim@skyhighmemory.com>
Date: Wed, 6 Mar 2024 13:15:32 +0900
From: KR Kim <kr.kim@...highmemory.com>
To: miquel.raynal@...tlin.com,
richard@....at,
vigneshr@...com,
mmkurbanov@...utedevices.com,
ddrokosov@...rdevices.ru
Cc: kr.kim@...highmemory.com,
gch981213@...il.com,
linux-mtd@...ts.infradead.org,
linux-kernel@...r.kernel.org,
moh.sardi@...highmemory.com,
changsub.shim@...highmemory.com
Subject: [PATCH 2/2] SPI Nand Patch code for SkyHigh Momory
---
drivers/mtd/nand/spi/Makefile | 2 +-
drivers/mtd/nand/spi/skyhigh.c | 57 ++++++----------------------------
2 files changed, 11 insertions(+), 48 deletions(-)
diff --git a/drivers/mtd/nand/spi/Makefile b/drivers/mtd/nand/spi/Makefile
index 48b429d90460..1e61ab21893a 100755
--- a/drivers/mtd/nand/spi/Makefile
+++ b/drivers/mtd/nand/spi/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
spinand-objs := core.o alliancememory.o ato.o esmt.o foresee.o gigadevice.o macronix.o
-spinand-objs += micron.o paragon.o toshiba.o winbond.o xtx.o skyhigh.o
+spinand-objs += micron.o paragon.o skyhigh.o toshiba.o winbond.o xtx.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
diff --git a/drivers/mtd/nand/spi/skyhigh.c b/drivers/mtd/nand/spi/skyhigh.c
index 71de4fa34406..dd348849216d 100644
--- a/drivers/mtd/nand/spi/skyhigh.c
+++ b/drivers/mtd/nand/spi/skyhigh.c
@@ -12,8 +12,8 @@
#define SPINAND_MFR_SKYHIGH 0x01
#define SKYHIGH_STATUS_ECC_1TO2_BITFLIPS (1 << 4)
-#define SKYHIGH_STATUS_ECC_3TO4_BITFLIPS (2 << 4)
-#define SKYHIGH_STATUS_ECC_5TO6_BITFLIPS (3 << 4)
+#define SKYHIGH_STATUS_ECC_3TO6_BITFLIPS (2 << 4)
+#define SKYHIGH_STATUS_ECC_UNCOR_ERROR (3 << 4)
#define SKYHIGH_CONFIG_PROTECT_EN BIT(1)
@@ -62,49 +62,15 @@ static const struct mtd_ooblayout_ops skyhigh_spinand_ooblayout = {
.free = skyhigh_spinand_ooblayout_free,
};
-#if 0
-bool skyhigh_spinand_isbad(struct spinand_device *spinand,
- const struct nand_pos *pos)
-{
- u8 marker;
- struct nand_page_io_req req = {
- .pos = *pos,
- .ooblen = 1,
- .ooboffs = 0,
- .oobbuf.in = &marker,
- .mode = MTD_OPS_RAW,
- };
-
- req.pos.page = 0;
- spinand_read_page(spinand, &req);
- if (marker != 0xff)
- return true;
-
-#if 0
- req.pos.page = 1;
- spinand_read_page(spinand, &req);
- if (marker != 0xff)
- return true;
-
- req.pos.page = 63;
- spinand_read_page(spinand, &req);
- if (marker != 0xff)
- return true;
-#endif
-
- return false;
-}
-#endif
-
static int skyhigh_spinand_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
/* SHM
- 00 : No bit-flip
- 01 : 1-2 errors corrected
- 10 : 3-6 errors corrected
- 11 : uncorrectable
- */
+ * 00 : No bit-flip
+ * 01 : 1-2 errors corrected
+ * 10 : 3-6 errors corrected
+ * 11 : uncorrectable
+ */
switch (status & STATUS_ECC_MASK) {
case STATUS_ECC_NO_BITFLIPS:
@@ -113,12 +79,10 @@ static int skyhigh_spinand_ecc_get_status(struct spinand_device *spinand,
case SKYHIGH_STATUS_ECC_1TO2_BITFLIPS:
return 2;
- /* change from 4 to 6 */
- case SKYHIGH_STATUS_ECC_3TO4_BITFLIPS:
+ case SKYHIGH_STATUS_ECC_3TO6_BITFLIPS:
return 6;
- /* uncorrectable for '11' */
- case SKYHIGH_STATUS_ECC_5TO6_BITFLIPS:
+ case SKYHIGH_STATUS_ECC_UNCOR_ERROR:
return -EBADMSG;;
default:
@@ -179,8 +143,7 @@ static int skyhigh_spinand_init(struct spinand_device *spinand)
static const struct spinand_manufacturer_ops skyhigh_spinand_manuf_ops = {
.init = skyhigh_spinand_init,
-/* .isbad = skyhigh_spinand_isbad,*/
-};
+ };
const struct spinand_manufacturer skyhigh_spinand_manufacturer = {
.id = SPINAND_MFR_SKYHIGH,
--
2.34.1
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