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Elia Yehuda 76a88d0805 Various Intel 82810/82810E changes which allow onboard VGA to work.
At the same time also make the 82810 code handle 82810E.

 - Set SMRAM register according to CONFIG_VIDEO_MB value:
    - 512 means 512 KB
    - 1 means 1 MB
    - Every other value for CONFIG_VIDEO_MB (e.g. 0) disables VGA.
   This is not very clean, changing CONFIG_VIDEO_MB to CONFIG_VIDEO_KB
   in a future patch may be nicer.

 - Set MISSC2 register bits as required per datasheet to make VGA work.
   The code handles both 82810 and 82810E.

 - northbridge.c: Add __pci_driver entry for the Intel 82810E.

Also:

 - Rename PAM register #define to PAMR as per datasheet.

 - Drop unused/commented code for now.

 - Don't explicitly set GMCHCFG for now, the default works ok. We'll
   have to figure out the proper/ideal settings later.

The code is based on a patch from Elia Yehuda <z4ziggy@gmail.com> but
has been modified quite a bit for correctness and minimalism.

Tested on hardware with a slightly modified MS-6178 target,
patches to enable onboard-VGA for MS-6178 will follow.

Signed-off-by: Elia Yehuda <z4ziggy@gmail.com>
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4398 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2009-07-05 15:50:30 +00:00
documentation This patch unifies the use of config options in v2 to all start with CONFIG_ 2009-06-30 15:17:49 +00:00
payloads Tell lpgcc about the target architecture directory. This slipped through since 2009-05-26 18:01:53 +00:00
src Various Intel 82810/82810E changes which allow onboard VGA to work. 2009-07-05 15:50:30 +00:00
targets Convert Supermicro H8DMR to CBFS. Also clean up some whitespace in 2009-07-02 18:27:02 +00:00
util let abuild autodetect the coreboot path a bit better. So in the top level of 2009-07-01 12:26:11 +00:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
NEWS Rename almost all occurences of LinuxBIOS to coreboot. 2008-01-18 15:08:58 +00:00
README Improvements for the coreboot v2 README: 2009-04-17 17:11:39 +00:00

README

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

coreboot is a Free Software project aimed at replacing the proprietary
BIOS you can find in most of today's computers.

It performs just a little bit of hardware initialization and then executes
one of many possible payloads, e.g. a Linux kernel or a bootloader.


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
 * python
 * perl

Optional:

 * doxygen (for generating/viewing documentation)
 * iasl (for targets with ACPI support)
 * gdb (for better debugging facilities on some targets)


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

Please consult http://www.coreboot.org/Documentation 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 (mostly those derived from the Linux kernel) 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.