summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-09-04 11:50:25 +0200
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-09-04 11:50:25 +0200
commit4eef93da262048eb1118e726b3ec5b8ebd3c6c91 (patch)
tree8a28287e405742086f6df380ee558265d17cf3f6 /doc
parent31043e20ae748635f142483e8b7b645948687055 (diff)
parentbc6958988726977b4089da1b13f6467e8e28efd2 (diff)
downloadu-boot-imx-4eef93da262048eb1118e726b3ec5b8ebd3c6c91.zip
u-boot-imx-4eef93da262048eb1118e726b3ec5b8ebd3c6c91.tar.gz
u-boot-imx-4eef93da262048eb1118e726b3ec5b8ebd3c6c91.tar.bz2
Merge branch 'u-boot-atmel/master' into 'u-boot-arm/master'
Diffstat (limited to 'doc')
-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 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