From b2d96dc28ffb2acad250ffb551a442396db83f38 Mon Sep 17 00:00:00 2001 From: "Wu, Josh" Date: Wed, 3 Jul 2013 11:11:45 +0800 Subject: ARM: at91: atmel_nand: pmecc driver will select the galois table by sector size MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Acked-by: Scott Wood [rebased on master] Signed-off-by: Andreas Bießmann --- doc/README.atmel_pmecc | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'doc') 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 -- cgit v1.2.1