From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/drivers/mtd/nand/spi/esmt.c | 67 ++++++++++++++++++++++++++++++++-
1 files changed, 65 insertions(+), 2 deletions(-)
diff --git a/kernel/drivers/mtd/nand/spi/esmt.c b/kernel/drivers/mtd/nand/spi/esmt.c
index 588a7e2..f658de8 100644
--- a/kernel/drivers/mtd/nand/spi/esmt.c
+++ b/kernel/drivers/mtd/nand/spi/esmt.c
@@ -29,7 +29,7 @@
SPINAND_PROG_LOAD(false, 0, NULL, 0));
static int f50lxx41x_ooblayout_ecc(struct mtd_info *mtd, int section,
- struct mtd_oob_region *region)
+ struct mtd_oob_region *region)
{
if (section > 3)
return -ERANGE;
@@ -41,7 +41,7 @@
}
static int f50lxx41x_ooblayout_free(struct mtd_info *mtd, int section,
- struct mtd_oob_region *region)
+ struct mtd_oob_region *region)
{
if (section > 3)
return -ERANGE;
@@ -57,6 +57,60 @@
.free = f50lxx41x_ooblayout_free,
};
+static int f50l2g41ka_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section)
+ return -ERANGE;
+
+ region->offset = mtd->oobsize / 2;
+ region->length = mtd->oobsize / 2;
+
+ return 0;
+}
+
+static int f50l2g41ka_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section)
+ return -ERANGE;
+
+ region->offset = 2;
+ region->length = mtd->oobsize / 2 - 2;
+
+ return 0;
+}
+
+static const struct mtd_ooblayout_ops f50l2g41ka_ooblayout = {
+ .ecc = f50l2g41ka_ooblayout_ecc,
+ .free = f50l2g41ka_ooblayout_free,
+};
+
+/*
+ * ecc bits: 0xC0[4,6]
+ * [0b000], No bit errors were detected;
+ * [0b001] and [0b011], 1~6 Bit errors were detected and corrected. Not
+ * reach Flipping Bits;
+ * [0b101], Bit error count equals the bit flip
+ * detection threshold
+ * [0b010], Multiple bit errors were detected and
+ * not corrected.
+ * others, Reserved.
+ */
+static int f50l2g41ka_ecc_ecc_get_status(struct spinand_device *spinand,
+ u8 status)
+{
+ struct nand_device *nand = spinand_to_nand(spinand);
+ u8 eccsr = (status & GENMASK(6, 4)) >> 4;
+
+ if (eccsr <= 1 || eccsr == 3)
+ return eccsr;
+ else if (eccsr == 5)
+ return nanddev_get_ecc_requirements(nand)->strength;
+ else
+ return -EBADMSG;
+}
+
static const struct spinand_info esmt_spinand_table[] = {
SPINAND_INFO("F50L1G41LB",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x01),
@@ -67,6 +121,15 @@
&update_cache_variants),
0,
SPINAND_ECCINFO(&f50lxx41x_ooblayout, NULL)),
+ SPINAND_INFO("F50L2G41KA",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x41, 0x7F),
+ 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(&f50l2g41ka_ooblayout, f50l2g41ka_ecc_ecc_get_status)),
};
static const struct spinand_manufacturer_ops esmt_spinand_manuf_ops = {
--
Gitblit v1.6.2