bcm-cfedump
Broadcom CFE NAND dumper (uses dn command)
Usage
usage: bcm_cfedump.py [-h] [-N NAND_SIZE] [-B BLOCK_SIZE] [-P PAGE_SIZE] -D
DEVICE [-b BAUDRATE] [-t TIMEOUT] [-O OUTPUT]
[-r MAX_RETRIES]
{page,block,nand} ...
Broadcom CFE dumper
positional arguments:
{page,block,nand} Available commands
page Read one or more pages
block Read one or more blocks
nand Read the entire NAND
optional arguments:
-h, --help show this help message and exit
-N NAND_SIZE, --nand-size NAND_SIZE
NAND size
-B BLOCK_SIZE, --block-size BLOCK_SIZE
Block size
-P PAGE_SIZE, --page-size PAGE_SIZE
Page size
-D DEVICE, --device DEVICE
Serial port
-b BAUDRATE, --baudrate BAUDRATE
Baud rate
-t TIMEOUT, --timeout TIMEOUT
Serial port timeout
-O OUTPUT, --output OUTPUT
Output file, '-' for stdout
-r MAX_RETRIES, --max-retries MAX_RETRIES
Max retries per page on failure
usage: bcm_cfedump.py page [-h] block page number
positional arguments:
block Block to read pages from
page Page to read
number Number of subsequent pages to read (if more than 1)
usage: bcm_cfedump.py block [-h] block number
positional arguments:
block Block to read
number Number of subsequent blocks to read (if more than 1)
usage: bcm_cfedump.py nand [-h]
Dump the whole NAND
Example
python -m bcm_cfedump -D /dev/ttyACM0 -O nand.img -t 0.01 nand
Dumps entire NAND to nand.img. The difference between nand and nand_bulk is that nand reads one page at a time, retrying if errors are detected; nand_bulk requests all the pages at a time and is not able to recover from errors.