Hi
I am having a nand (with the below mentioned details) for T1040 processor.
nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xd3
nand: Micron MT29F8G08ABACAWP
I faced the ubi attach issue
root@t1040d4rdb:/tmp# ubiattach /dev/ubi_ctrl -m 4
ubi0: attaching mtd4
ubi0 warning: scan_peb: valid VID header but corrupted EC header at PEB 1
ubi0: scanning is finished
ubi0 error: vtbl_check: bad CRC at record 2: 0xe3cfe020, not 0xf11ec36b
Volume table record 2 dump:
reserved_pebs 0
alignment 0
data_pad 0
vol_type 0
upd_marker 0
name_len 0
name NULL
ubi0 error: vtbl_check: bad CRC at record 1: 0x4321950, not 0xf11ec36b
Volume table record 1 dump:
reserved_pebs 0
alignment 0
data_pad 0
vol_type 0
upd_marker 0
name_len 0
name NULL
ubi0 error: process_lvol: both volume tables are corrupted
ubi0 error: ubi_attach_mtd_dev: failed to attach mtd4, error -22
ubiattach: error!: cannot attach mtd4
error 22 (Invalid argument)
there was 1 bit ECC error so i tried changing the nand ecc mode from 4 to 8.Even after doing so the issue is still there.
nand test shows the following
root@t1040d4rdb:~# nandtest -p 1 /dev/mtd3
ECC corrections: 0
ECC failures : 0
Bad blocks : 0
BBT blocks : 0
00000000: reading...fsl_ifc_run_command 338
00000000: checking...
compare failed. seed 1396897799
Byte 0x4 is fe should be ee
Byte 0x6 is 7a should be 5a
Byte 0x8 is f9 should be e9root@t1040d4rdb:~# nandtest -p 1 /dev/mtd3
ECC corrections: 0
ECC failures : 0
Bad blocks : 0
BBT blocks : 0
00000000: reading...fsl_ifc_run_command 338
00000000: checking...
compare failed. seed 1396897799
Byte 0x4 is fe should be ee
Byte 0x6 is 7a should be 5a
Byte 0x8 is f9 should be e9
Byte 0x15 is 6c should be 64
Byte 0x16 is cb should be c3
Byte 0x18 is 73 should be 53
Byte 0x23 is f5 should be e5
Byte 0x28 is d9 should be d1
Byte 0x29 is ce should be c6
Byte 0x42 is 36 should be 26
Byte 0x56 is fe should be ee
Byte 0x57 is f8 should be e8
Byte 0x59 is 1f should be 0d
Byte 0x5c is 99 should be 89
Byte 0x61 is 5e should be 56
Byte 0x62 is ff should be f7
Byte 0x67 is ff should be cf
Byte 0x68 is 3c should be 2c
Byte 0x7b is fb should be bb
Byte 0x15 is 6c should be 64
Byte 0x16 is cb should be c3
Byte 0x18 is 73 should be 53
Byte 0x23 is f5 should be e5
Byte 0x28 is d9 should be d1
Byte 0x29 is ce should be c6
Byte 0x42 is 36 should be 26
Byte 0x56 is fe should be ee
Byte 0x57 is f8 should be e8
Byte 0x59 is 1f should be 0d
Byte 0x5c is 99 should be 89
Byte 0x61 is 5e should be 56
Byte 0x62 is ff should be f7
Byte 0x67 is ff should be cf
Byte 0x68 is 3c should be 2c
Byte 0x7b is fb should be bb
