Mity CPU Platforms » MitySOM-335x (ARM Cortex-A8 Based Products)

root@mitysom-335x:~# flash_erase /dev/mtd1 0 0

Erasing 256 Kibyte @ 0 -- 100 % complete

root@mitysom-335x:~# nandwrite -p /dev/mtd1 /run/media/mmcblk0p1/MLO

Writing data to block 0 at offset 0x0

root@mitysom-335x:~# nanddump /dev/mtd1 -l 4096 > /dev/null

ECC failed: 0

ECC corrected: 0

Number of bad blocks: 0

Number of bbt blocks: 0

Block size 262144, page size 4096, OOB size 224

Dumping data starting at 0x00000000 and ending at 0x00001000...

root@mitysom-335x:~# nanddump --oob /dev/mtd0 -l 4096 -f nandpage.raw

ECC failed: 0

ECC corrected: 0

Number of bad blocks: 1

Number of bbt blocks: 0

Block size 262144, page size 4096, OOB size 224

Dumping data starting at 0x00000000 and ending at 0x00001000...

root@mitysom-335x:~# xxd nandpage.raw > nandpage.xxd

root@mitysom-335x:~# vi nandpage.xxd

root@mitysom-335x:~# xxd -r nandpage.xxd nandpage.flipped

root@mitysom-335x:~# nandwrite --oob --noecc /dev/mtd1 nandpage.flipped

Writing data to block 0 at offset 0x0

root@mitysom-335x:~# nanddump /dev/mtd1 -l 4096 > /dev/null

ECC failed: 1

ECC corrected: 0

Number of bad blocks: 0

Number of bbt blocks: 0

Block size 262144, page size 4096, OOB size 224

Dumping data starting at 0x00000000 and ending at 0x00001000...

ECC: 1 corrected bitflip(s) at offset 0x00000000