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authorTom Rini <trini@ti.com>2013-09-06 20:25:35 -0400
committerTom Rini <trini@ti.com>2013-09-06 20:25:35 -0400
commit47f75cf2e1d8648e3438630f3a4bddf9b5caa25d (patch)
tree1d0f8f8943d44245381f255a059e258c696bc5a8 /doc/README.atmel_pmecc
parent1affd4d4a3fe512050e1ad1636d9360c670da531 (diff)
parent68e1747f9c0506159e8ecc9a4feb58e9c65a7b39 (diff)
downloadtalos-obmc-uboot-47f75cf2e1d8648e3438630f3a4bddf9b5caa25d.tar.gz
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'doc/README.atmel_pmecc')
-rw-r--r--doc/README.atmel_pmecc14
1 files changed, 0 insertions, 14 deletions
diff --git a/doc/README.atmel_pmecc b/doc/README.atmel_pmecc
index b483744ea5..41f3bd7860 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
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