mirror of
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bc3f2f84f9
Add a new layout option, --fmap-verify, to be used when writing to flash, which will compare the FMAP on the flash chip to the one in the file being flashed, and abort if there are any differences. The comparison ensures that number of regions and start/end addresses are all identical. Add documentation for the new option as well. TEST: tested with the following commands: flashrom -p internal -r coreboot.rom --fmap-verify -i COREBOOT (fails w/error) flashrom -p internal -v coreboot.rom --fmap-verify -i COREBOOT (fails w/error) flashrom -p internal -r coreboot.rom --fmap -i COREBOOT (ok) flashrom -p internal -w coreboot.rom --fmap-verify -i COREBOOT (fails w/error - no FMAP) flashrom -p internal -r coreboot.rom (fails w/error, active ME) flashrom -p internal -r coreboot.rom --ifd -i bios (ok) flashrom -p internal -w coreboot.rom --fmap-verify -i COREBOOT -N (ok) Change-Id: I34f69d848869cf236b7e57cf8f60c2aaad79c385 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/89536 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
flashrom README
===============
flashrom is a utility for detecting, reading, writing, verifying and erasing
flash chips. It is often used to flash BIOS/EFI/coreboot/firmware images
in-system using a supported mainboard, but it also supports flashing of network
cards (NICs), SATA controller cards, and other external devices which can
program flash chips.
It supports a wide range of flash chips (most commonly found in SOIC8, DIP8,
SOIC16, WSON8, PLCC32, DIP32, TSOP32, and TSOP40 packages), which use various
protocols such as LPC, FWH, parallel flash, or SPI.
Do not use flashrom on laptops (yet)! The embedded controller (EC) present in
many laptops might interact badly with any attempts to communicate with the
flash chip and may brick your laptop.
Please make a backup of your flash chip before writing to it.
Please see the flashrom(8) manpage :doc:`classic_cli_manpage`.
The list of platforms that package flashrom can be found on `repology.org <https://repology.org/project/flashrom/versions>`_.
Information about recent releases can be found in :doc:`/release_notes/index`.
Building / installing / packaging
---------------------------------
flashrom is built with **meson**. TLDR:
::
meson setup builddir
meson compile -C builddir
meson test -C builddir
meson install -C builddir
For full detailed instructions, follow the information in
:doc:`dev_guide/building_from_source`.
If you are interested in development, have a look at :doc:`dev_guide/development_guide`.
Contact
-------
The official flashrom website is:
https://www.flashrom.org/
For available contact methods see :doc:`contact`