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Open-Power Flash tool VERSION
Usage: ./pflash [options] commands...
Options:
-a address, --address=address
Specify the start address for erasing, reading
or flashing
-s size, --size=size
Specify the size in bytes for erasing, reading
or flashing
-P part_name, --partition=part_name
Specify the partition whose content is to be erased
programmed or read. This is an alternative to -a and -s
if both -P and -s are specified, the smallest of the
two will be used
-f, --force
Don't ask for confirmation before erasing or flashing
-d, --dummy
Don't write to flash
--direct
Bypass all safety provided to you by the kernel driver
and use the flash driver built into pflash.
If you have mtd devices and you use this command, the
system may become unstable.
If you are reading this sentence then this flag is not
what you want! Using this feature without knowing
what it does can and likely will result in a bricked
machine
-b, --bmc
Target BMC flash instead of host flash.
Note: This carries a high chance of bricking your BMC if you
don't know what you're doing. Consider --mtd to be safe(r)
-F filename, --flash-file filename
Target filename instead of actual flash.
-S, --side
Side of the flash on which to operate, 0 (default) or 1
-T, --toc
libffs TOC on which to operate, defaults to 0.
leading 0x is required for interpretation of a hex value
-g
Enable verbose libflash debugging
Commands:
-4, --enable-4B
Switch the flash and controller to 4-bytes address
mode (no confirmation needed).
-3, --disable-4B
Switch the flash and controller to 3-bytes address
mode (no confirmation needed).
-r file, --read=file
Read flash content from address into file, use -s
to specify the size to read (or it will use the source
file size if used in conjunction with -p and -s is not
specified). When using -r together with -e or -p, the
read will be performed first
-E, --erase-all
Erase entire flash chip
(Not supported on all chips/controllers)
-e, --erase
Erase the specified region. If size or address are not
specified, but '--program' is used, then the file
size will be used (rounded to an erase block) and the
address defaults to 0.
-p file, --program=file
Will program the file to flash. If the address is not
specified, it will use 0. If the size is not specified
it will use the file size. Otherwise it will limit to
the specified size (whatever is smaller). If used in
conjunction with any erase command, the erase will
take place first.
-t, --tune
Just tune the flash controller & access size
Must be used in conjuction with --direct
(Implicit for all other operations)
-c --clear
Used to ECC clear a partition of the flash
Must be used in conjunction with -P. Will erase the
partition and then set all the ECC bits as they should be
-i, --info
Display some information about the flash.
--detail
Displays detailed info about a particular partition.
Accepts a numeric partition or can be used in conjuction
with the -P flag.
-h, --help
This message.
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