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Sven Schnelle b2f173e168 i82801gx: Fix port status in AHCI mode
The code used PCI register 0x92 to enable sata ports,
which is wrong. The ICH7 documentation states:

"This register is only used in systems that do not
support AHCI. In AHCI enabled systems, bits[3:0] must
always be set (ICH7R only) / bits[2,0] must always be set
(Mobile only), and the status of the port is controlled
through AHCI memory space."

Writing 0x0f to ICH7-M doesn't seem to hurt, so lets write
0x0f for both variants. This patch makes sata_ahci work on
my Thinkpad T60 and X60s.

Change-Id: If3b3daec2e5fbaa446de00272ebde01cd8d52475
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/340
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-10-27 18:27:07 +02:00
documentation Whitespace/typo/cosmetic fixes (trivial). 2010-09-23 18:48:27 +00:00
payloads Fix libpayload speaker driver 2011-10-27 10:49:41 +02:00
src i82801gx: Fix port status in AHCI mode 2011-10-27 18:27:07 +02:00
util Add -Werror to xcompile's testcc 2011-10-27 10:50:39 +02:00
.gitignore Add a few more patterns to .gitignore 2011-08-27 09:44:50 +02:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
Makefile Allow XGCCPATH to be set on the make command line. 2011-10-23 18:55:27 +02:00
Makefile.inc Provide mechanism to local additions to the build 2011-09-14 07:44:25 +02:00
README Update README with newer version of the text from the web page 2011-06-15 10:16:33 +02:00

README

-------------------------------------------------------------------------------
coreboot README
-------------------------------------------------------------------------------

coreboot is a Free Software project aimed at replacing the proprietary BIOS
(firmware) found in most computers.  coreboot performs a little bit of
hardware initialization and then executes additional boot logic, called a
payload.

With the separation of hardware initialization and later boot logic,
coreboot can scale from specialized applications that run directly
firmware, run operating systems in flash, load custom
bootloaders, or implement firmware standards, like PC BIOS services or
UEFI. This allows for systems to only include the features necessary
in the target application, reducing the amount of code and flash space
required.

coreboot was formerly known as LinuxBIOS.


Payloads
--------

After the basic initialization of the hardware has been performed, any
desired "payload" can be started by coreboot.

See http://www.coreboot.org/Payloads for a list of supported payloads.


Supported Hardware
------------------

coreboot supports a wide range of chipsets, devices, and mainboards.

For details please consult:

 * http://www.coreboot.org/Supported_Motherboards
 * http://www.coreboot.org/Supported_Chipsets_and_Devices


Build Requirements
------------------

 * gcc / g++
 * make

Optional:

 * doxygen (for generating/viewing documentation)
 * iasl (for targets with ACPI support)
 * gdb (for better debugging facilities on some targets)
 * ncurses (for 'make menuconfig')
 * flex and bison (for regenerating parsers)


Building coreboot
-----------------

Please consult http://www.coreboot.org/Build_HOWTO for details.


Testing coreboot Without Modifying Your Hardware
------------------------------------------------

If you want to test coreboot without any risks before you really decide
to use it on your hardware, you can use the QEMU system emulator to run
coreboot virtually in QEMU.

Please see http://www.coreboot.org/QEMU for details.


Website and Mailing List
------------------------

Further details on the project, a FAQ, many HOWTOs, news, development
guidelines and more can be found on the coreboot website:

  http://www.coreboot.org

You can contact us directly on the coreboot mailing list:

  http://www.coreboot.org/Mailinglist


Copyright and License
---------------------

The copyright on coreboot is owned by quite a large number of individual
developers and companies. Please check the individual source files for details.

coreboot is licensed under the terms of the GNU General Public License (GPL).
Some files are licensed under the "GPL (version 2, or any later version)",
and some files are licensed under the "GPL, version 2". For some parts, which
were derived from other projects, other (GPL-compatible) licenses may apply.
Please check the individual source files for details.

This makes the resulting coreboot images licensed under the GPL, version 2.