"Bad eraseblock" and "Failed ECC read"

[Pramod P K]

This is the MTD NAND with JFFS2 and after I flash I get:


My U-Boot v0.1

.......


NAND device: Manufacturer ID: 0xec, Chip ID: 0xa1 (Samsung NAND 128MiB
1,8V 8-bit)
Scanning device for bad blocks
....
....

check_short_pattern: p[td->offs + i]: ff td->pattern[i]: ff

...

check_short_pattern: p[td->offs + i]: 84 td->pattern[i]: ff
Bad eraseblock 96 at 0x00c00000

td->len:2
check_short_pattern: p[td->offs + i]: 23 td->pattern[i]: ff
Bad eraseblock 97 at 0x00c20000

.....

NAND flash probing at 0x20020000 Finished
In:    console
Out:   console
Err:   console
Hit any key to stop autoboot:  2  1  0

Loading from device 0: NAND 128MiB 1,8V 8-bit at 0x200b8000 (offset 0xd00000)

.....

: do_nandboot(): ecc_status=-1
nand_read_ecc: Failed ECC read, page 0x00001a00

.....

: do_nandboot(): ecc_status=-1
nand_read_ecc: Failed ECC read, page 0x00001a00

...

** Read error on 0
Boot reached stage -1



Please come with the possibilities.
Thanks.

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