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Bruce Griffith 5c2025c40f AMD Hudson A55E: Remove GEC firmware blob kconfig prompt
The "gigabit ethernet controller" (GEC) block was added to AMD
Hudson A55E to integrate ethernet capabilities into an AMD
southbridge.

The GEC is designed to work with B50610 and B50610M gigabit PHY
chips from Broadcom.  These parts may not be generally available
in small quantities for embedded development.

The GEC block requires an opaque firmware blob to function.  The
GEC blob is controlled by AMD and Broadcom and is not available
from coreboot.org.

This change removes GEC support from AMD Parmer and AMD Thatcher
mainboards since these boards do not have the Broadcom PHY.

AMD has requested that the GEC be hidden for Hudson FCH since
the PHY parts are not generally available.  This Kconfig option
can make it appear that this is a viable and supported way to
add Ethernet to an embedded board.  It is possible to use the
Hudson GEC block with other PHYs, but this requires development
of a custom GEC blob and a custom Ethernet driver.  A custom GEC
blob has been developed for a Micrel PHY, but there is no
accompanying driver.

Change-Id: I7a7bf4d41e453390ecf987c9c45ef2434fc1f1a3
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3127
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Jens Rottmann <JRottmann@LiPPERTembedded.de>
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
2013-05-01 23:49:06 +02:00
3rdparty@ba8caa30bd Update 3rdparty mark to latest repository 2013-03-15 19:09:08 +01:00
documentation documentation: Complete the AMD-S3.txt 2013-04-16 02:31:08 +02:00
payloads Eliminate use of pointers in coreboot table 2013-04-20 05:18:15 +02:00
src AMD Hudson A55E: Remove GEC firmware blob kconfig prompt 2013-05-01 23:49:06 +02:00
util superiotool: add CR dump for W83627UHG = NCT6627UD 2013-04-22 17:07:13 +02:00
.gitignore add a few entries to .gitignore 2013-01-10 22:51:20 +01:00
.gitmodules gitmodules: Ignore 3rdparty in "diff family" 2013-03-16 04:07:14 +01:00
.gitreview add .gitreview 2012-11-01 23:13:39 +01:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
Makefile build system: Retire REQUIRES_BLOB 2013-02-19 11:00:41 +01:00
Makefile.inc rmodule: add rmodules class and new type 2013-03-18 20:46:40 +01:00
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.