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This megapatch rewrites substantial parts of ICH SPI to actually do what the SPI layer wants instead of its own weird idea about commands (running unrequested commands, running modified commands). Besides that, there is a fair share of cleanups as well. - Add JEDEC_EWSR (Enable Write Status Register) to default commands. - Mark a no longer used opcode/preopcode table as unused. - Declare all commands as non-atomic/standalone by default. The ICH SPI driver has no business executing commands (preopcodes) automatically if they were not requested. - Automatically adjust preopcode/opcode pairings (like WREN+ERASE) based on what the SPI layer requested. The ICH SPI driver has no business executing altered opcode pairs as it sees fit. - Fix incomplete initialization in the case of a locked down chipset. Leaving the first 4 opcodes with uninitialized pairings had unpredictable results. - switch() exists for a reason. Nested if() checking on the same variable is an interesting style. - Actually check if the requested readcnt/writecnt for a command is supported by the hardware instead of delivering corrupt/incomplete commands and data. - If a command has unsupported readlen/writelen, complain loudly to the user. - Use find_opcode instead of open-coding the same stuff in a dozen variations. - Introduce infrastructure for updating the command set of unlocked chipsets on the fly. Corresponding to flashrom svn r894. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: David Hendricks <dhendrix@google.com>
------------------------------------------------------------------------------- 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. 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$SVNREVISION and will additionally modify the Makefile in that directory to contain the svn revision of the exported tree. make tarball will simply tar up the result of make export and gzip compress it. The snapshot tarballs are the result of make tarball and require no further processing. Build Instructions ------------------ To build flashrom you need to install the following packages or ports: Linux et al: * pciutils / libpci * pciutils-devel / pciutils-dev / libpci-dev * zlib-devel / zlib1g-dev (only needed if libpci is static) On FreeBSD, you need the following ports: * devel/gmake * devel/libpci To compile on Linux, use: make To compile on FreeBSD, use: gmake To compile on Nexenta, use: make To compile on Solaris, use: gmake LDFLAGS="-L$pathtolibpci" CC="gcc -I$pathtopciheaders" CFLAGS=-O2 To compile on NetBSD or DragonFly BSD, use: ln -s /usr/pkg/include/pciutils pci gmake CFLAGS=-I. LDFLAGS="-L/usr/pkg/lib -Wl,-rpath-link,/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. 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