Define the galois index table offset in chip head file. So user do not need
to set by himself. Driver will set it correctly according to sector_size.
Signed-off-by: Josh Wu <josh...@atmel.com>
---
arch/arm/include/asm/arch-at91/at91sam9x5.h | 6 ++++++
doc/README.atmel_pmecc | 14 --------------
drivers/mtd/nand/atmel_nand.c | 5 ++++-
include/configs/at91sam9x5ek.h | 1 -
include/configs/sama5d3xek.h | 1 -
5 files changed, 10 insertions(+), 17 deletions(-)
diff --git a/arch/arm/include/asm/arch-at91/at91sam9x5.h
b/arch/arm/include/asm/arch-at91/at91sam9x5.h
index 85e42f5..de9fa50 100644
--- a/arch/arm/include/asm/arch-at91/at91sam9x5.h
+++ b/arch/arm/include/asm/arch-at91/at91sam9x5.h
@@ -165,6 +165,12 @@
#define ATMEL_ID_UHP ATMEL_ID_UHPHS
/*
+ * PMECC table in ROM
+ */
+#define ATMEL_PMECC_INDEX_OFFSET_512 0x8000
+#define ATMEL_PMECC_INDEX_OFFSET_1024 0x10000
+
+/*
* at91sam9x5 specific prototypes
*/
#ifndef __ASSEMBLY__
diff --git a/doc/README.atmel_pmecc b/doc/README.atmel_pmecc
index b483744..41f3bd7 100644
--- a/doc/README.atmel_pmecc
+++ b/doc/README.atmel_pmecc
@@ -19,17 +19,6 @@ To use PMECC in this driver, the user needs to set:
It can be 2, 4, 8, 12 or 24.
2. The PMECC sector size: CONFIG_PMECC_SECTOR_SIZE.
It only can be 512 or 1024.
- 3. The PMECC index lookup table's offsets in ROM code:
CONFIG_PMECC_INDEX_TABLE_OFFSET.
- In the chip datasheet section "Boot Stragegies", you can find
- two Galois Field Table in the ROM code. One table is for 512-bytes
- sector. Another is for 1024-byte sector. Each Galois Field includes
- two sub-table: indext table & alpha table.
- In the beginning of each Galois Field Table is the index table,
- Alpha table is in the following.
- So the index table's offset is same as the Galois Field Table.
-
- Please set CONFIG_PMECC_INDEX_TABLE_OFFSET correctly according the
- Galois Field Table's offset base on the sector size you used.
Take AT91SAM9X5EK as an example, the board definition file likes:
@@ -38,7 +27,4 @@ Take AT91SAM9X5EK as an example, the board definition file
likes:
#define CONFIG_ATMEL_NAND_HW_PMECC 1
#define CONFIG_PMECC_CAP 2
#define CONFIG_PMECC_SECTOR_SIZE 512
-#define CONFIG_PMECC_INDEX_TABLE_OFFSET 0x8000
-NOTE: If you use 1024 as the sector size, then need set 0x10000 as the
- CONFIG_PMECC_INDEX_TABLE_OFFSET
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 3bfbaf8..139a479 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -653,7 +653,10 @@ static int atmel_pmecc_nand_init_params(struct nand_chip
*nand,
cap = host->pmecc_corr_cap = CONFIG_PMECC_CAP;
sector_size = host->pmecc_sector_size = CONFIG_PMECC_SECTOR_SIZE;
- host->pmecc_index_table_offset = CONFIG_PMECC_INDEX_TABLE_OFFSET;
+ if (host->pmecc_sector_size == 512)
+ host->pmecc_index_table_offset = ATMEL_PMECC_INDEX_OFFSET_512;
+ else
+ host->pmecc_index_table_offset = ATMEL_PMECC_INDEX_OFFSET_1024;
MTDDEBUG(MTD_DEBUG_LEVEL1,
"Initialize PMECC params, cap: %d, sector: %d\n",
diff --git a/include/configs/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h
index ee6e3fc..4364026 100644
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -137,7 +137,6 @@
#define CONFIG_ATMEL_NAND_HW_PMECC 1
#define CONFIG_PMECC_CAP 2
#define CONFIG_PMECC_SECTOR_SIZE 512
-#define CONFIG_PMECC_INDEX_TABLE_OFFSET 0x8000
#define CONFIG_MTD_DEVICE
#define CONFIG_CMD_MTDPARTS
diff --git a/include/configs/sama5d3xek.h b/include/configs/sama5d3xek.h
index c13e983..67f8180 100644
--- a/include/configs/sama5d3xek.h
+++ b/include/configs/sama5d3xek.h
@@ -142,7 +142,6 @@
#define CONFIG_ATMEL_NAND_HW_PMECC
#define CONFIG_PMECC_CAP 4
#define CONFIG_PMECC_SECTOR_SIZE 512
-#define CONFIG_PMECC_INDEX_TABLE_OFFSET ATMEL_PMECC_INDEX_OFFSET_512
#define CONFIG_CMD_NAND_TRIMFFS
#endif
--
1.7.9.5
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