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54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
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From e0ccf861b80698a5cc6f97c89bf8d5761f465fce Mon Sep 17 00:00:00 2001
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From: Zhi-Jun You <hujy652@gmail.com>
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Date: Sun, 7 Jan 2024 14:41:20 +0000
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Subject: mtd: spinand: winbond: add support for W25N04KV
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Add support for W25N04KV.
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W25N04KV has 8-bit on-die ECC.
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Signed-off-by: Zhi-Jun You <hujy652@gmail.com>
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Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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Link: https://lore.kernel.org/linux-mtd/20240107144120.532-1-hujy652@gmail.com
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---
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drivers/mtd/nand/spi/winbond.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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(limited to 'drivers/mtd/nand/spi/winbond.c')
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--- a/drivers/mtd/nand/spi/winbond.c
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+++ b/drivers/mtd/nand/spi/winbond.c
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@@ -15,6 +15,8 @@
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#define WINBOND_CFG_BUF_READ BIT(3)
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+#define W25N04KV_STATUS_ECC_5_8_BITFLIPS (3 << 4)
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+
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static SPINAND_OP_VARIANTS(read_cache_variants,
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SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
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@@ -118,6 +120,7 @@ static int w25n02kv_ecc_get_status(struc
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return -EBADMSG;
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case STATUS_ECC_HAS_BITFLIPS:
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+ case W25N04KV_STATUS_ECC_5_8_BITFLIPS:
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/*
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* Let's try to retrieve the real maximum number of bitflips
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* in order to avoid forcing the wear-leveling layer to move
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@@ -214,6 +217,15 @@ static const struct spinand_info winbond
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&update_cache_variants),
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0,
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SPINAND_ECCINFO(&w25m02gv_ooblayout, w25n02kv_ecc_get_status)),
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+ SPINAND_INFO("W25N04KV",
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+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xaa, 0x23),
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+ NAND_MEMORG(1, 2048, 128, 64, 4096, 40, 2, 1, 1),
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+ NAND_ECCREQ(8, 512),
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+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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+ &write_cache_variants,
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+ &update_cache_variants),
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+ 0,
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+ SPINAND_ECCINFO(&w25n02kv_ooblayout, w25n02kv_ecc_get_status)),
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};
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static int winbond_spinand_init(struct spinand_device *spinand)
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