mirror of
https://review.coreboot.org/flashrom.git
synced 2025-04-26 14:42:36 +02:00
62218c39de
This is based on chromiumos commit a5f4e82c59d6bcaf06b94623e5516d1db8cb843a. http://git.chromium.org/gitweb/?p=chromiumos/third_party/flashrom.git;a=commit;h=a5f4e82c59d6bcaf06b94623e5516d1db8cb843a See also http://www.flashrom.org/pipermail/flashrom/2011-November/008191.html Besides disabling the SMM protection this also fixes something that bothered me for a long time: the content of BIOS_CNTL was shown before we try to modify it. This is usually not what interests us and contradicts other outputs. With this patch we try to set the write enable and disable the SMM protection first and show the state of BIOS_CNTL afterwards. We now return an error only if the write enable is not set (which should be equivalent to the previous behavior on sane hardware, but it seems to be 'more correct' and makes the code clearer to do this explicitly). Corresponding to flashrom svn r1582. Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at> Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
-------------------------------------------------------------------------------
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 DIP32, PLCC32, DIP8, SO8/SOIC8, TSOP32, and TSOP40
chips, which use various protocols such as LPC, FWH, parallel flash, or SPI.
Do not use flashrom on laptops! The embedded controller (EC) present in many
laptops interacts badly with any flash attempts and can brick your laptop
permanently.
Please make a backup of your flash chip before writing to it.
Please see the flashrom(8) manpage.
Packaging
---------
To package flashrom and remove dependencies on subversion, either use
make export
or
make tarball
make export will export all flashrom files from the subversion repository at
revision BASE into a directory named $EXPORTDIR/flashrom-$VERSION-r$SVNREVISION
and will additionally modify the Makefile in that directory to contain the svn
revision of the exported tree.
make tarball will simply tar up the result of make export and gzip compress it.
The snapshot tarballs are the result of make tarball and require no further
processing.
Build Instructions
------------------
To build flashrom you need to install the following software:
* pciutils+libpci (if you want support for mainboard or PCI device flashing)
* libusb (if you want FT2232 or Dediprog support)
* libftdi (if you want FT2232 support)
Linux et al:
* pciutils / libpci
* pciutils-devel / pciutils-dev / libpci-dev
* zlib-devel / zlib1g-dev (needed if libpci was compiled with libz support)
On FreeBSD, you need the following ports:
* devel/gmake
* devel/libpci
On OpenBSD, you need the following ports:
* devel/gmake
* sysutils/pciutils
To compile on Linux, use:
make
To compile on FreeBSD, use:
gmake
To compile on Nexenta, use:
make
To compile on Solaris, use:
gmake LDFLAGS="-L$pathtolibpci" CC="gcc -I$pathtopciheaders" CFLAGS=-O2
To compile on NetBSD or DragonFly BSD, use:
ln -s /usr/pkg/include/pciutils pci
gmake CPPFLAGS="-I. -I/usr/pkg/include" \
LDFLAGS="-L/usr/pkg/lib -Wl,-rpath-link,/usr/pkg/lib"
To compile on OpenBSD, use:
gmake
To compile and run on Darwin/Mac OS X:
Install DirectHW from coresystems GmbH.
DirectHW is available at http://www.coreboot.org/DirectHW .
To cross-compile on Linux for DOS:
Get packages of the DJGPP cross compiler and install them:
djgpp-filesystem djgpp-gcc djgpp-cpp djgpp-runtime djgpp-binutils
As an alternative, the DJGPP web site offers packages for download as well:
djcross-binutils-2.19.1-10ap.i386.rpm
djcross-gcc-4.3.2-8ap.i686.rpm
djcrx-2.04pre_20090725-13ap.i386.rpm
The cross toolchain packages for your distribution may have slightly different
names (look for packages named *djgpp*).
Download pciutils 3.1.5 and apply http://assembler.cz/flashrom/pciutils.patch
Download and compile http://assembler.cz/flashrom/libgetopt/
Compile pciutils, see README.DJGPP for instructions.
Enter the flashrom directory.
../libpci should contain pciutils source and binaries.
../libgetopt should contain getopt.a from libgetopt.
Run either (change settings where appropriate)
make CC=i586-pc-msdosdjgpp-gcc STRIP=i586-pc-msdosdjgpp-strip
or (above settings hardcoded)
make djgpp-dos
You might have to add WARNERROR=no to the make command line.
To run flashrom.exe, download and unpack
http://homer.rice.edu/~sandmann/cwsdpmi/csdpmi7b.zip and make sure
CWSDPMI.EXE is in the current directory.
To cross-compile on Linux for Windows:
Get packages of the MinGW cross compiler and install them:
mingw32-filesystem mingw32-cross-cpp mingw32-cross-binutils mingw32-cross-gcc
mingw32-runtime mingw32-headers
The cross toolchain packages for your distribution may have slightly different
names (look for packages named *mingw*).
PCI-based programmers (internal etc.) are not supported on Windows.
Run (change CC= and STRIP= settings where appropriate)
make CC=i686-w64-mingw32-gcc STRIP=i686-w64-mingw32-strip
Processor architecture dependent features:
On non-x86 architectures a few programmers don't work (yet) because they
use port-based I/O which is not directly available on non-x86. Those
programmers will be disabled automatically if you run "make".
Installation
------------
In order to install flashrom and the manpage into /usr/local, type:
make install
For installation in a different directory use DESTDIR, e.g. like this:
make DESTDIR=/usr install
If you have insufficient permissions for the destination directory, use sudo
by adding sudo in front of the commands above.
Contact
-------
The official flashrom website is:
http://www.flashrom.org/
The IRC channel is
#flashrom at irc.freenode.net
The mailing list address is
flashrom@flashrom.org