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9424b2b786
Backport upstream patch to add support for the ESMT F50L1G41LC flash chip. It is used in multiple Cudy products manufactured starting November 2025. Link: https://github.com/openwrt/openwrt/pull/20962 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
36 lines
1.3 KiB
Diff
36 lines
1.3 KiB
Diff
From dd26402642a0899fde59ea6b0852fad3d799b4cc Mon Sep 17 00:00:00 2001
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From: George Moussalem <george.moussalem@outlook.com>
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Date: Thu, 15 May 2025 21:46:05 +0400
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Subject: mtd: spinand: esmt: fix id code for F50D1G41LB
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Upon detecting the ID for the ESMT F50D1G41LB chip, the fifth byte
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returned is always 0x00 instead of the expected JEDEC continuation code
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of 0x7f. This causes detection to fail:
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[ 0.304399] spi-nand spi0.0: unknown raw ID c8117f7f00
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[ 0.508943] spi-nand: probe of spi0.0 failed with error -524
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So let's revert back to the 4 byte ID code for this chip
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specifically.
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Fixes: 4bd14b2fd8a8 ("mtd: spinand: esmt: Extend IDs to 5 bytes")
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Signed-off-by: George Moussalem <george.moussalem@outlook.com>
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Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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---
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drivers/mtd/nand/spi/esmt.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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(limited to 'drivers/mtd/nand/spi/esmt.c')
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--- a/drivers/mtd/nand/spi/esmt.c
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+++ b/drivers/mtd/nand/spi/esmt.c
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@@ -129,7 +129,7 @@ static const struct spinand_info esmt_c8
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SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)),
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SPINAND_INFO("F50D1G41LB",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11, 0x7f,
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- 0x7f, 0x7f),
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+ 0x7f),
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NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
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NAND_ECCREQ(1, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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