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-rw-r--r--target/linux/ipq40xx/patches-4.14/083-mtd-nand-add-Winbond-manufacturer-and-chip.patch38
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/ipq40xx/patches-4.14/083-mtd-nand-add-Winbond-manufacturer-and-chip.patch b/target/linux/ipq40xx/patches-4.14/083-mtd-nand-add-Winbond-manufacturer-and-chip.patch
new file mode 100644
index 0000000000..295bc163b3
--- /dev/null
+++ b/target/linux/ipq40xx/patches-4.14/083-mtd-nand-add-Winbond-manufacturer-and-chip.patch
@@ -0,0 +1,38 @@
+From 07b6d0cdbbda8c917480eceaec668f09e4cf24a5 Mon Sep 17 00:00:00 2001
+From: Christian Lamparter <chunkeey@gmail.com>
+Date: Mon, 14 Nov 2016 23:49:22 +0100
+Subject: [PATCH] mtd: nand: add Winbond manufacturer and chip
+
+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>
+---
+ drivers/mtd/nand/nand_ids.c | 4 ++++
+ include/linux/mtd/nand.h | 1 +
+ 2 files changed, 5 insertions(+)
+
+--- a/drivers/mtd/nand/nand_ids.c
++++ b/drivers/mtd/nand/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),