I have been experiencing a few problems when using a NAND flash for storage in u-boot.
When I'm reading large files (7MB) from the NAND, periodically there will be a NAND ECC read error when using the following command:
=> nand read 400000 0 154000 NAND read: device 0 offset 0x0, size 0x154000 1392640 bytes read: ERROR.
After turning on debug, the problem is occurring in the nand_read_ecc function whereby the ecc check fails. After running it numerous times, there seems to be no correlation between pages that fail and appears to be completely random. Has anyone else had these problems?
Furthermore, the "nand write" command doesn't skip bad blocks. Are you supposed to use a different command to write files to the NAND that skips the bad blocks?
Thanks Craig