openwrtv3/target/linux/ramips/patches-4.9/0901-spansion_nand_id_fix.patch
Hauke Mehrtens aed03d5d0f kernel: update kernel 4.9 to version 4.9.91
* Refreshed patches.
 * Deleted 210-Revert-led-core-Fix-brightness-setting-when-setting-.patch (was accepted upstream)
 * Deleted 812-pci-dwc-fix-enumeration.patch (was accepted upstream)

Compile and run tested on lantiq

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-03-31 16:31:26 +02:00

43 lines
1.4 KiB
Diff

From 8b61a1a33e41456ebeafa0ebe7ec0fccf859861e Mon Sep 17 00:00:00 2001
From: Nikolay Martynov <mar.kolya@gmail.com>
Date: Wed, 25 Nov 2015 20:43:46 -0500
Subject: [PATCH] mtd: nand: Fix Spansion sparearea size detection
According to datasheet S34ML02G2 and S34ML04G2 have
larger sparea area size than was detected.
Signed-off-by: Nikolay Martynov <mar.kolya@gmail.com>
---
drivers/mtd/nand/nand_base.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3861,6 +3861,7 @@ static void nand_decode_ext_id(struct mt
/*
* Field definitions are in the following datasheets:
* Old style (4,5 byte ID): Samsung K9GAG08U0M (p.32)
+ * Spansion S34ML02G2 (p.33)
* New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44)
* Hynix MLC (6 byte ID): Hynix H27UBG8T2B (p.22)
*
@@ -3958,6 +3959,19 @@ static void nand_decode_ext_id(struct mt
*busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
/*
+ * Spansion S34ML0[24]G2 have oobsize twice as large
+ * as S34ML01G2 encoded in the same bit. We
+ * differinciate them by their ID length
+ */
+ if (id_data[0] == NAND_MFR_AMD
+ && (id_data[1] == 0xda
+ || id_data[1] == 0xdc
+ || id_data[1] == 0xca
+ || id_data[1] == 0xcc)) {
+ mtd->oobsize *= 2;
+ }
+
+ /*
* Toshiba 24nm raw SLC (i.e., not BENAND) have 32B OOB per
* 512B page. For Toshiba SLC, we decode the 5th/6th byte as
* follows: