X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=doc%2FREADME.atmel_pmecc;h=cf8373b54e826c8877acca3382e21cf9ed3e7197;hb=32f4d729e775e707d3ef11ef320d83aaa1ef6afb;hp=b483744ea5987b84aa1c05c608cac13967aa625e;hpb=6e2fbdea1b26d75314d87c380a36b0015bf824cf;p=karo-tx-uboot.git diff --git a/doc/README.atmel_pmecc b/doc/README.atmel_pmecc index b483744ea5..cf8373b54e 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 +27,3 @@ 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