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mirror of https://review.coreboot.org/flashrom.git synced 2025-04-30 00:13:43 +02:00
Michael Karcher 1c296ca8bc Use common jedec functionality where appropriate
The deleted function in en29f002a.c is reintroduced as
write_by_byte_jedec in jedec.c as it contains no chip-specific
instructions. It is not yet used in other chip drivers, as key addresses
(0x2AAA/0x5555) are often specified with less bits. After crosschecking
datasheets, most of the fixmes can probably be resolved as indicated in
them, causing significant code reduction.

The common JEDEC code for bytewise programming does not program 0xFF
at all. The chips that had a dedicated bytewise flash function which
has been changed to write_jedec_1 thus changed flashing behaviour
and the "write" test flag has been removed. This applies to: AMD
Am29F002BB/Am29F002NBB AMD Am29F002BT/Am29F002NBT (TEST_OK_PREW before)
AMIC A29002B AMIC A29002T (TEST_OK_PREW before) EON EN29F002(A)(N)B EON
EN29F002(A)(N)T (TEST_OK_PREW before) Macronix MX29F001B (TEST_OK_PREW
before) Macronix MX29F001T (TEST_OK_PREW before) Macronix MX29F002B
Macronix MX29F002T (TEST_OK_PREW before) Macronix MX29LV040

Similar analysis should be performed for the read id stuff.

Corresponding to flashrom svn r785.

Signed-off-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
Acked-by: Sean Nelson <audiohacked@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
2009-11-27 17:49:42 +00:00
2009-08-09 12:44:08 +00:00
2007-09-08 14:36:01 +00:00
2009-11-25 02:07:30 +00:00
2009-11-24 00:20:03 +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 DIP32, PLCC32, DIP8, SO8/SOIC8, TSOP32, and TSOP40
chips, which use various protocols such as LPC, FWH, parallel flash, or SPI.


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 packages or ports:

Linux et al:

 * pciutils / libpci
 * pciutils-devel / pciutils-dev / libpci-dev
 * zlib-devel / zlib1g-dev (only needed if libpci is static)

On FreeBSD, you need the following ports:

 * devel/gmake
 * devel/libpci

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 DragonFly BSD, use:

 ln -s /usr/pkg/include/pciutils pci
 gmake CFLAGS=-I. LDFLAGS="-L/usr/pkg/lib"

To compile and run on Darwin/Mac OS X:

 Install DirectIO from coresystems GmbH.
 DirectIO is available at http://www.coresystems.de/en/directio.


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.


Usage / Options
---------------

Please see the flashrom(8) manpage.


Exit status
-----------

Please see the flashrom(8) manpage.


coreboot Table and Mainboard Identification
--------------------------------------------

Please see the flashrom(8) manpage.


ROM Layout Support
------------------

Please see the flashrom(8) manpage.


Supported Flash Chips / Chipsets / Mainboards
---------------------------------------------

Please check the output of 'flashrom -L' for the list of supported
flash chips, chipsets/southbridges, mainboards, and flash programmers.


Contact
-------

The official flashrom website is:

  http://www.flashrom.org/

The IRC channel is

  #flashrom at irc.freenode.net

The Mailing list addess is

  flashrom@flashrom.org
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