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- 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
- @@ -3571,6 +3571,7 @@ 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)
- *
- @@ -3668,6 +3669,19 @@ 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:
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