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mirror of https://review.coreboot.org/flashrom.git synced 2025-04-26 22:52:34 +02:00
Kapil Porwal 1b9bcdc99b flashchips/winbond.c: Add reg_bits for W25Q256JW
Add reg_bits for W25Q256JW as per the datasheet. The register
definitions are same as W25Q256JW_DTR.

Datasheet: https://www.winbond.com/hq/support/documentation/levelOne.jsp?__locale=en&DocNo=DA00-W25Q256JW

BUG=b:376929528
TEST=Program and verify WP ranges

```
flashrom -p internal --wp-status
flashrom -p internal --wp-range 0x0,0x2000000
flashrom -p internal --wp-enable
flashrom -p internal --wp-status
```

Change-Id: I050754b28a90911a50f891869297524ce9a6720e
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/85323
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
2025-02-03 08:06:10 +00:00
2024-10-01 04:51:21 +00:00
2024-09-08 08:13:30 +00:00
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2019-07-31 08:26:59 +00:00

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`
Description
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Readme 75 MiB
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