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Anastasia Klimchuk 25819a432d erase/write: Deselect all smaller blocks when large block is selected 
Previously the logic which selected large block did deselect of
smaller blocks, but only one level below. So some even smaller blocks
could still remain selected, and this would result in duplicate erase.

This patch deselects all smaller blocks of all levels below, down to
the smallest size. If the area is covered by one large block, no
other smaller blocks inside are needed.

Change-Id: Icfc18d5c090b1dcb92ab157e2c139be71af59300
Spotted-by: persmule <persmule@hardenedlinux.org>
Signed-off-by: Anastasia Klimchuk <aklm@flashrom.org>
Co-authored-by: persmule <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/84686
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2024-10-24 01:47:55 +00:00
.github/workflows
website/gh workflow: Resolve 404 links
2023-08-03 23:04:56 +00:00
bindings/rust
flashrom_tester: Fix partial_lock_test on libflashrom
2024-02-03 07:43:35 +00:00
doc
doc/contact: Add note to IRC section and calm down the formatting
2024-10-09 23:55:57 +00:00
include
flashchips: Add Support for XMC XM25LU64C
2024-10-24 01:31:03 +00:00
meson_cross
reduce DELAY_MINIMUM_SLEEP_US to 100 by default
2024-09-02 23:52:30 +00:00
platform
meson: Refactor the programmer selection
2022-09-12 07:15:03 +00:00
scripts
tests: Add llvm-cov option and run target for code coverage
2022-12-11 21:27:27 +00:00
subprojects
build: never install cmocka
2024-10-01 04:51:21 +00:00
tests
tests: Add assert for eraseblocks order of invocations for write op
2024-10-24 01:46:35 +00:00
util
ichspi: Add RaptorPoint PCH support
2024-09-08 08:13:30 +00:00
.gitattributes
bindings/rust/libflashrom-sys: Create thin rust bindgen binding
2022-08-19 04:37:21 +00:00
.gitignore
Remove the Makefile
2024-08-12 00:09:12 +00:00
82802ab.c
tree/: Convert unlock func ptr into enumerate values
2023-03-20 00:36:56 +00:00
amd_imc.c
amd_imc.c: Fix unusual typo in log message
2022-12-22 14:03:37 +00:00
asm106x.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
at45db.c
tree/: Case write_granularity enum values
2023-04-06 05:15:03 +00:00
atahpt.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
atapromise.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
atavia.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
bitbang_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
board_enable.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
buspirate_spi.c
buspirate_spi: add support for hiz output with pullups=off
2023-12-10 21:47:27 +00:00
cbtable.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
ch341a_spi.c
ch341a_spi: drop validation of handle in routines
2023-04-13 09:33:29 +00:00
ch347_spi.c
ch347_spi: Add spi clock frequency selection
2024-08-29 22:43:09 +00:00
chipset_enable.c
ichspi: Add RaptorPoint PCH support
2024-09-08 08:13:30 +00:00
cli_classic.c
tree: Remove print_wiki.c
2024-08-22 01:22:27 +00:00
cli_common.c
cli_common: Add link to the documentation how to mark chip tested
2024-03-21 12:16:49 +00:00
cli_getopt.c
cli_classic: include a fallback inplementation of getopt
2023-04-27 09:31:49 +00:00
cli_output.c
libflashrom: Return progress state to the library user
2022-05-25 08:08:13 +00:00
COPYING
Add a dedicated license
2007-09-08 14:36:01 +00:00
custom_baud_darwin.c
serial: Add Darwin/macOS support for custom and >230400 baudrates
2023-02-16 17:29:58 +00:00
custom_baud_linux.c
serial: Call set_custom_baudrate() thrice
2023-02-16 17:29:21 +00:00
custom_baud.c
serial: Call set_custom_baudrate() thrice
2023-02-16 17:29:21 +00:00
dediprog.c
dediprog: Fix comment about usb transfer size
2024-09-23 09:54:21 +00:00
developerbox_spi.c
drivers/: Make 'fallback_{un}map' the default unless defined
2022-10-08 18:36:21 +00:00
digilent_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
dirtyjtag_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
dmi.c
dmi.c: Pass is_laptop by ref into dmi
2023-03-28 00:36:36 +00:00
Doxyfile
libflashrom: Move documentation to header
2022-05-06 01:00:37 +00:00
drkaiser.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
dummyflasher.c
dummyflasher: Enable higher frequency emulation, add docs and tests
2024-09-25 01:39:33 +00:00
edi.c
tree: provide flashrom context into programmer_delay()
2022-10-17 01:00:35 +00:00
en29lv640b.c
en29lv640b.c: Fix the comment about chunksize
2024-09-23 09:57:14 +00:00
erasure_layout.c
erase/write: Deselect all smaller blocks when large block is selected
2024-10-24 01:47:55 +00:00
flashchips.c
flashchips: Add Support for XMC XM25LU64C
2024-10-24 01:31:03 +00:00
flashrom.c
Fix FEATURE_NO_ERASE chips and add test for them
2024-09-16 01:13:21 +00:00
fmap.c
fmap: Update major/minor version check
2024-03-08 12:30:13 +00:00
ft2232_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
gfxnvidia.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
helpers_fileio.c
flashrom.c: Move write_buf_to_file() to helpers_fileio.c
2022-08-25 00:25:41 +00:00
helpers.c
helpers.c: use unsigned int for bit shifts (ASAN)
2022-03-21 02:11:02 +00:00
hwaccess_physmap.c
libpayload: Fix compiling bugs
2022-11-23 06:53:09 +00:00
hwaccess_x86_io.c
hwaccess_x86_io: Fix Android compilation with bionic libc
2024-06-27 00:42:14 +00:00
hwaccess_x86_msr.c
hwaccess_x86_msr: drop outdated comment
2022-04-13 11:47:25 +00:00
i2c_helper_linux.c
tree: Port programmers to pass programmer_cfg to extractors
2022-09-07 01:56:58 +00:00
ich_descriptors.c
ichspi: Add RaptorPoint PCH support
2024-09-08 08:13:30 +00:00
ichspi.c
ichspi: Probe opcode in POSSIBLE_OPCODES[] as well
2024-10-09 05:34:32 +00:00
internal_par.c
internal: Move parallel logic into internal_par implementation
2023-02-15 06:28:41 +00:00
internal.c
internal: Move laptop_ok into board_cfg
2023-04-06 04:43:29 +00:00
it87spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
it8212.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
jedec.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
jlink_spi.c
jlink_spi: add cs=tms option to jlink_spi programmer
2023-05-14 07:25:25 +00:00
known_boards.c
tree: Remove print_wiki.c
2024-08-22 01:22:27 +00:00
layout.c
libflashrom: Add layout "exclude" API
2023-07-18 01:17:04 +00:00
libflashrom.c
udelay: only use OS time for delays, except on DOS
2024-04-25 23:23:01 +00:00
libflashrom.map
libflashrom.map: remove non-existent functions
2024-07-04 22:54:33 +00:00
linux_mtd.c
linux_mtd: Provide no-op delay implementation
2024-03-14 10:14:51 +00:00
linux_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
MAINTAINERS
Remove the Makefile
2024-08-12 00:09:12 +00:00
mcp6x_spi.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
mediatek_i2c_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
meson_options.txt
reduce DELAY_MINIMUM_SLEEP_US to 100 by default
2024-09-02 23:52:30 +00:00
meson.build
chipset_enable.c: Use PCI_ACCESS_ECAM to access pci register
2024-08-22 23:36:35 +00:00
mstarddc_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
ni845x_spi.c
ni845x_spi: refactor singleton states into reentrant pattern
2023-07-19 02:23:21 +00:00
nic3com.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
nicintel_eeprom.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
nicintel_spi.c
drivers/: Make 'fallback_{un}map' the default unless defined
2022-10-08 18:36:21 +00:00
nicintel.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
nicnatsemi.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
nicrealtek.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
ogp_spi.c
drivers/: Make 'fallback_{un}map' the default unless defined
2022-10-08 18:36:21 +00:00
opaque.c
opaque_master: Add shutdown function in opaque_master struct
2021-08-17 16:30:46 +00:00
parade_lspcon.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
parallel.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
pcidev.c
Revert "pcidev: remove pcidev_getdevfn() function"
2023-03-20 14:36:27 +00:00
pickit2_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
pony_spi.c
tree/: Rename 'internal_delay()' to 'default_delay()'
2022-12-12 23:00:58 +00:00
print.c
print.c: Print B (block-protect) test status of the chips
2024-06-25 09:31:05 +00:00
printlock.c
tree/: Convert unlock func ptr into enumerate values
2023-03-20 00:36:56 +00:00
processor_enable.c
Remove address from GPLv2 headers
2018-04-24 20:21:41 +00:00
programmer_table.c
ch347_spi: Add initial support for the WCH CH347
2023-02-27 10:13:01 +00:00
programmer.c
parallel: Drop explicit fallback_chip_X boilerplate
2023-01-11 22:51:35 +00:00
raiden_debug_spi.c
raiden: Support target index with generic REQ_ENABLE
2023-11-03 05:59:53 +00:00
rayer_spi.c
rayer_spi.c: Get rid of temporary prog_type string
2022-10-22 00:45:30 +00:00
README.rst
Remove the Makefile
2024-08-12 00:09:12 +00:00
realtek_mst_i2c_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
s25f.c
add gcc-14 -Werror=calloc-transposed-args compatibility
2024-05-28 20:46:57 +00:00
satamv.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
satasii.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
sb600spi.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
serial.c
serial: Fix sp_flush_incoming for serprog TCP connections
2023-11-27 09:09:35 +00:00
serprog.c
serprog: Fix scan-build warning of resource leak
2024-03-21 10:59:40 +00:00
sfdp.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
spi25_statusreg.c
add gcc-14 -Werror=calloc-transposed-args compatibility
2024-05-28 20:46:57 +00:00
spi25.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
spi95.c
printf: Use inttype.h macros for format strings
2023-04-27 09:36:46 +00:00
spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
sst28sf040.c
tree: provide flashrom context into programmer_delay()
2022-10-17 01:00:35 +00:00
sst49lfxxxc.c
Remove address from GPLv2 headers
2018-04-24 20:21:41 +00:00
sst_fwhub.c
Fix -Wsign-compare trouble
2019-07-31 08:26:59 +00:00
stlinkv3_spi.c
stlinkv3_spi: Mark STLinkV3-Mini not working
2024-08-23 10:05:07 +00:00
stm50.c
tree: provide flashrom context into programmer_delay()
2022-10-17 01:00:35 +00:00
superio.c
internal.c: Move sio register to own object
2023-02-04 04:09:04 +00:00
test_build.sh
Remove the Makefile
2024-08-12 00:09:12 +00:00
udelay_dos.c
Make sleep threshold for delays configurable
2024-05-09 01:03:04 +00:00
udelay.c
Make sleep threshold for delays configurable
2024-05-09 01:03:04 +00:00
usb_device.c
usb_device.c: remove LIBUSB() wrapper around call that may fail
2023-04-23 12:29:05 +00:00
usbblaster_spi.c
tree/: Drop default_spi_probe_opcode for NULL case
2023-03-03 17:35:50 +00:00
usbdev.c
usbdev.c: Add missing <inttypes.h> include
2019-10-22 23:24:16 +00:00
VERSION
VERSION: Update version to 1.5.0-devel
2024-07-26 00:10:32 +00:00
w29ee011.c
flashrom.c: Make 'chip_to_probe' a param to probe_flash()
2022-11-06 23:30:33 +00:00
w39.c
tree: provide flashrom context into programmer_delay()
2022-10-17 01:00:35 +00:00
wbsio_spi.c
board_enables: Allow for prog cfg coupling with board cfg
2023-04-02 01:00:13 +00:00
writeprotect_ranges.c
writeprotect_ranges.c: add more range functions
2022-11-19 06:59:30 +00:00
writeprotect.c
writeprotect: Add function to get register values and WP bit masks
2023-03-03 05:52:20 +00:00

README.rst 

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`
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