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From: John Crispin <john@phrozen.org>
To: Boris Brezillon <boris.brezillon@bootlin.com>,
	Richard Weinberger <richard@nod.at>
Cc: linux-mtd@lists.infradead.org,
	Christian Lamparter <chunkeey@gmail.com>,
	John Crispin <john@phrozen.org>
Subject: [PATCH] mtd: nand: add Winbond manufacturer and chip
Date: Tue, 24 Jul 2018 16:09:14 +0200	[thread overview]
Message-ID: <20180724140914.15986-1-john@phrozen.org> (raw)

From: Christian Lamparter <chunkeey@gmail.com>

This patch adds the W25N01GV NAND to the table of
known devices. Without this patch the device gets detected:

nand: device found, Manufacturer ID: 0xef, Chip ID: 0xaa
nand: Unknown NAND 256MiB 1,8V 8-bit
nand: 256 MiB, SLC, erase size: 64 KiB, page size: 1024, OOB size : 16

Whereas the u-boot identifies it as:
spi_nand: spi_nand_flash_probe SF NAND ID 00:ef:aa:21
SF: Detected W25N01GV with page size 2 KiB, total 128 MiB

Due to the page size discrepancy, it's impossible to attach
ubi volumes on the device.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: John Crispin <john@phrozen.org>
---
 drivers/mtd/nand/raw/nand_ids.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index 5423c3bb388e..1610e1cb6bfc 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -54,6 +54,10 @@ struct nand_flash_dev nand_flash_ids[] = {
 		{ .id = {0xad, 0xde, 0x94, 0xda, 0x74, 0xc4} },
 		  SZ_8K, SZ_8K, SZ_2M, NAND_NEED_SCRAMBLING, 6, 640,
 		  NAND_ECC_INFO(40, SZ_1K), 4 },
+	{"W25N01GV 1G 3.3V 8-bit",
+		{ .id = {0xef, 0xaa} },
+		  SZ_2K, SZ_128, SZ_128K, NAND_NO_SUBPAGE_WRITE,
+		  2, 64, NAND_ECC_INFO(1, SZ_512) },
 
 	LEGACY_ID_NAND("NAND 4MiB 5V 8-bit",   0x6B, 4, SZ_8K, SP_OPTIONS),
 	LEGACY_ID_NAND("NAND 4MiB 3,3V 8-bit", 0xE3, 4, SZ_8K, SP_OPTIONS),
-- 
2.11.0

             reply	other threads:[~2018-07-24 14:09 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-24 14:09 John Crispin [this message]
2018-07-24 20:58 ` [PATCH] mtd: nand: add Winbond manufacturer and chip Boris Brezillon

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