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I used W25Q256JW as a template and just increased every erase size calculation. Datasheet can be found by form contact only via https://www.winbond.com/hq/product/code-storage-flash-memory/serial-nor-flash/?__locale=en_TW&partNo=W25R512NW I tested it by running: dd if=/dev/urandom of=/tmp/random.bin bs=1M count=64 sudo /tmp/flashrom/build/flashrom -p ft2232_spi:type=2232H -w /tmp/random.bin --progress sudo /tmp/flashrom/build/flashrom -p ft2232_spi:type=2232H -v /tmp/random.bin And I saw "Verifying flash... VERIFIED." Change-Id: Ibf670e4014a22e4636789768b759cb51f75cd046 Signed-off-by: Alexandru M Stan <ams@frame.work> Reviewed-on: https://review.coreboot.org/c/flashrom/+/84752 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`.
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`
Contact
-------
The official flashrom website is:
https://www.flashrom.org/
For available contact methods see :doc:`contact`