[DOC2000] invalid size detected

David Girault
2002-12-10T13:57:46Z

Hi all,

I am trying to access a 8MB DOC2000 using kernel 2.4.20 and MTD lasted CVS
version (using patchin.sh).

The current CVS version detect a bad size for my DOC device when I load
modules using :
/sbin/modprobe -a doc2000 nftl mtdchar
/sbin/modprobe -a docprobe

The previous version I build (2.4.18) detect the correct size but lack for
UnitSizeFactor!=1 support.

I think the problem is in the NAND_IDS.C chip identification but I am not
sure.
As I can see, there is a name conflict beetween nand_ids.h and nand_ids.c.

What de you think of this problems/bug?

Thank.
David.

-------------------------

LOG for 2.4.20+MTD CVS:

NFTL driver: nftlcore.c $Revision: 1.87 $, nftlmount.c $Revision: 1.31 $
Using configured DiskOnChip probe address 0xdc000
DiskOnChip 2000 found at address 0xDC000
Flash chip found: Manufacturer ID: EC, Chip ID: E6 (NAND 2MB 5V)
1 flash chips found. Total DiskOnChip size: 2 MiB
NFTL: UnitSizeFactor 0x00 detected. This violates the spec but we think we
know
what it means...
NFTL Media Header sanity check failed:
numvunits (1984) > nb_blocks (512) - nb_boot_blocks(8) - 2
Could not find valid boot record
Could not mount NFTL device

cat /proc/mtd:

dev: size erasesize name
mtd0: 00200000 00001000 "DiskOnChip 2000"

-------------------------

LOG for 2.4.18:

NFTL driver: nftlcore.c $Revision: 1.82 $, nftlmount.c $Revision: 1.25 $
Using configured DiskOnChip probe address 0xdc000
DiskOnChip 2000 found at address 0xDC000
Flash chip found: Manufacturer ID: EC, Chip ID: E6 (Samsung KM29U64000)
1 flash chips found. Total DiskOnChip size: 8 MiB
Sorry, we don't support UnitSizeFactor of != 1 yet.
Could not find valid boot record
Could not mount NFTL device

cat /proc/mtd:
dev: size erasesize name
mtd0: 00800000 00002000 "DiskOnChip 2000"