diff options
| -rw-r--r-- | target/linux/ramips/patches-4.3/0901-spansion_nand_id_fix.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.3/0901-spansion_nand_id_fix.patch b/target/linux/ramips/patches-4.3/0901-spansion_nand_id_fix.patch new file mode 100644 index 0000000000..bb95461276 --- /dev/null +++ b/target/linux/ramips/patches-4.3/0901-spansion_nand_id_fix.patch @@ -0,0 +1,43 @@ +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 +@@ -3422,6 +3422,7 @@ 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) + * +@@ -3519,6 +3520,19 @@ 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: |