Hi Bora, I have the same problem here. Did you find a solution for this nand large page device. I tried to copy nand_command_lp from nand_base.c and added the -CE stuff including disabling interrupts during read. The result is that I found just one bad block during scan :-). Also erasing nand seems to be possible (usinf eraseall /dev/mtdX). But if I write and read back the data (using dd) I get io errors :-( I found your posting on this list wihout an answer so I hope you was able to manage the nand stuff. Kind Regards, Frank Am Samstag, den 19.05.2007, 22:13 +0300 schrieb borasah@xxxxxxxxx: > Hi, > > We want to use NAND flash on Alchemy Au1200 and have a custom board along with > Db1200; so tried it both on our custom board and Db1200 without success. > (Because Db1200 has a slot we opened it and replaced the original with our > part) > > Kernel -> 2.6.20.1. Error messages: > > NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V > 8-bit) > Scanning device for bad blocks > Bad eraseblock 0 at 0x00000000 > Bad eraseblock 1 at 0x00020000 > ... > Bad eraseblock 1022 at 0x07fc0000 > Bad eraseblock 1023 at 0x07fe0000 > Creating 2 MTD partitions on "NAND 128MiB 3,3V 8-bit": > > It marks all the eraseblocks as BAD. As far as I understand > "au1xxx_nand_command" seems doesnt work correctly. Has someone succeded to > work with these large block parts in the Au1200/Au1550? > > Thanks... > > -- > Bora SAHIN
