Hello all! I have some problem when using NAND flash manufactured by Toshiba. The device ID is 0xD7 , value 4Gbyte, page size 0x1000, erase blocksize 0x80000. The board is at91sam9260 based custom board. At first I was a normal performance of the board with a chip samsung k9k8g08 and u-boot version 1.3.4. But now i can not to get normal functionality of the board using toshiba chip and u-boot version 2012.04-rc3 Then I change NAND chip and u-boot sends to debug port ecc error when access to NAND is flow. For a while I could not think how to solve this problem and changed U-boot settings to no avail. Then I manually set page size and blocksize in file drivers/mtd/nand/nand_ids.c for 0xD7 device and the error disappeared. I have no idea - what did i wrong?Why autodetect is absent? Now ecc error do not take place, but i have not accsess to high 2Gbyte of NAND- write , erase and read operations is fault, blocks skipped to high range of the NAND. not 2Gbyte , the fault area begin from 0x80200000h address (it is more correctly). Write, erase and read operations into space 0x0000h - 0x80200000h flow without any problem. This NAND chip is new. What do you think about this?
Best regards, Serg Klimenko