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Diffstat (limited to 'target/linux/generic/backport-4.19/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch')
-rw-r--r--target/linux/generic/backport-4.19/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch196
1 files changed, 0 insertions, 196 deletions
diff --git a/target/linux/generic/backport-4.19/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch b/target/linux/generic/backport-4.19/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch
deleted file mode 100644
index d3ded95ccb..0000000000
--- a/target/linux/generic/backport-4.19/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch
+++ /dev/null
@@ -1,196 +0,0 @@
-From c93c613214ac70c87beab5422a60077bf126b855 Mon Sep 17 00:00:00 2001
-From: Chuanhong Guo <gch981213@gmail.com>
-Date: Wed, 28 Nov 2018 21:07:25 +0800
-Subject: [PATCH 3/8] mtd: spinand: add support for GigaDevice GD5FxGQ4xA
-
-Add support for GigaDevice GD5F1G/2G/4GQ4xA SPI NAND.
-
-Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
-Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
-Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
----
- drivers/mtd/nand/spi/Makefile | 2 +-
- drivers/mtd/nand/spi/core.c | 1 +
- drivers/mtd/nand/spi/gigadevice.c | 148 ++++++++++++++++++++++++++++++
- include/linux/mtd/spinand.h | 1 +
- 4 files changed, 151 insertions(+), 1 deletion(-)
- create mode 100644 drivers/mtd/nand/spi/gigadevice.c
-
---- a/drivers/mtd/nand/spi/Makefile
-+++ b/drivers/mtd/nand/spi/Makefile
-@@ -1,3 +1,3 @@
- # SPDX-License-Identifier: GPL-2.0
--spinand-objs := core.o macronix.o micron.o toshiba.o winbond.o
-+spinand-objs := core.o gigadevice.o macronix.o micron.o toshiba.o winbond.o
- obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
---- a/drivers/mtd/nand/spi/core.c
-+++ b/drivers/mtd/nand/spi/core.c
-@@ -760,6 +760,7 @@ static const struct nand_ops spinand_ops
- };
-
- static const struct spinand_manufacturer *spinand_manufacturers[] = {
-+ &gigadevice_spinand_manufacturer,
- &macronix_spinand_manufacturer,
- &micron_spinand_manufacturer,
- &toshiba_spinand_manufacturer,
---- /dev/null
-+++ b/drivers/mtd/nand/spi/gigadevice.c
-@@ -0,0 +1,148 @@
-+// SPDX-License-Identifier: GPL-2.0
-+/*
-+ * Author:
-+ * Chuanhong Guo <gch981213@gmail.com>
-+ */
-+
-+#include <linux/device.h>
-+#include <linux/kernel.h>
-+#include <linux/mtd/spinand.h>
-+
-+#define SPINAND_MFR_GIGADEVICE 0xC8
-+#define GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS (1 << 4)
-+#define GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS (3 << 4)
-+
-+static SPINAND_OP_VARIANTS(read_cache_variants,
-+ SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
-+ SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
-+ SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
-+ SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
-+ 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_variants,
-+ SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
-+ SPINAND_PROG_LOAD(true, 0, NULL, 0));
-+
-+static SPINAND_OP_VARIANTS(update_cache_variants,
-+ SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
-+ SPINAND_PROG_LOAD(false, 0, NULL, 0));
-+
-+static int gd5fxgq4xa_ooblayout_ecc(struct mtd_info *mtd, int section,
-+ struct mtd_oob_region *region)
-+{
-+ if (section > 3)
-+ return -ERANGE;
-+
-+ region->offset = (16 * section) + 8;
-+ region->length = 8;
-+
-+ return 0;
-+}
-+
-+static int gd5fxgq4xa_ooblayout_free(struct mtd_info *mtd, int section,
-+ struct mtd_oob_region *region)
-+{
-+ if (section > 3)
-+ return -ERANGE;
-+
-+ if (section) {
-+ region->offset = 16 * section;
-+ region->length = 8;
-+ } else {
-+ /* section 0 has one byte reserved for bad block mark */
-+ region->offset = 1;
-+ region->length = 7;
-+ }
-+ return 0;
-+}
-+
-+static int gd5fxgq4xa_ecc_get_status(struct spinand_device *spinand,
-+ u8 status)
-+{
-+ switch (status & STATUS_ECC_MASK) {
-+ case STATUS_ECC_NO_BITFLIPS:
-+ return 0;
-+
-+ case GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS:
-+ /* 1-7 bits are flipped. return the maximum. */
-+ return 7;
-+
-+ case GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS:
-+ return 8;
-+
-+ case STATUS_ECC_UNCOR_ERROR:
-+ return -EBADMSG;
-+
-+ default:
-+ break;
-+ }
-+
-+ return -EINVAL;
-+}
-+
-+static const struct mtd_ooblayout_ops gd5fxgq4xa_ooblayout = {
-+ .ecc = gd5fxgq4xa_ooblayout_ecc,
-+ .free = gd5fxgq4xa_ooblayout_free,
-+};
-+
-+static const struct spinand_info gigadevice_spinand_table[] = {
-+ SPINAND_INFO("GD5F1GQ4xA", 0xF1,
-+ NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1),
-+ NAND_ECCREQ(8, 512),
-+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
-+ &write_cache_variants,
-+ &update_cache_variants),
-+ 0,
-+ SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout,
-+ gd5fxgq4xa_ecc_get_status)),
-+ SPINAND_INFO("GD5F2GQ4xA", 0xF2,
-+ NAND_MEMORG(1, 2048, 64, 64, 2048, 1, 1, 1),
-+ NAND_ECCREQ(8, 512),
-+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
-+ &write_cache_variants,
-+ &update_cache_variants),
-+ 0,
-+ SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout,
-+ gd5fxgq4xa_ecc_get_status)),
-+ SPINAND_INFO("GD5F4GQ4xA", 0xF4,
-+ NAND_MEMORG(1, 2048, 64, 64, 4096, 1, 1, 1),
-+ NAND_ECCREQ(8, 512),
-+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
-+ &write_cache_variants,
-+ &update_cache_variants),
-+ 0,
-+ SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout,
-+ gd5fxgq4xa_ecc_get_status)),
-+};
-+
-+static int gigadevice_spinand_detect(struct spinand_device *spinand)
-+{
-+ u8 *id = spinand->id.data;
-+ int ret;
-+
-+ /*
-+ * For GD NANDs, There is an address byte needed to shift in before IDs
-+ * are read out, so the first byte in raw_id is dummy.
-+ */
-+ if (id[1] != SPINAND_MFR_GIGADEVICE)
-+ return 0;
-+
-+ ret = spinand_match_and_init(spinand, gigadevice_spinand_table,
-+ ARRAY_SIZE(gigadevice_spinand_table),
-+ id[2]);
-+ if (ret)
-+ return ret;
-+
-+ return 1;
-+}
-+
-+static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = {
-+ .detect = gigadevice_spinand_detect,
-+};
-+
-+const struct spinand_manufacturer gigadevice_spinand_manufacturer = {
-+ .id = SPINAND_MFR_GIGADEVICE,
-+ .name = "GigaDevice",
-+ .ops = &gigadevice_spinand_manuf_ops,
-+};
---- a/include/linux/mtd/spinand.h
-+++ b/include/linux/mtd/spinand.h
-@@ -194,6 +194,7 @@ struct spinand_manufacturer {
- };
-
- /* SPI NAND manufacturers */
-+extern const struct spinand_manufacturer gigadevice_spinand_manufacturer;
- extern const struct spinand_manufacturer macronix_spinand_manufacturer;
- extern const struct spinand_manufacturer micron_spinand_manufacturer;
- extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-27 17:42:12 +0000