Read-only mirror of https://review.coreboot.org/coreboot.git. Synced every hour. We don't handle Pull Requests. https://coreboot.org
  • C 93.8%
  • ASL 2.2%
  • Makefile 1.1%
  • C++ 0.5%
  • Pawn 0.5%
  • Other 1.8%
Find a file
Julius Werner abee3edeb9 veyron: Fix TPM I2C initialization and sync boards
Due to a missing i2c_init(), we were actually running our TPM with
default divisors at 660KHz. Oops.

While it's commendable that both the TPM and our controller seem to have
been running fine all this time at more than 1.5 times the maximum
frequency they support, we should probably still get that fixed.

Also sync Speedy back up to the other Veyron boards since it seems to
have missed a recent SDMMC patch.

BRANCH=None
BUG=None
TEST=Booted Pinky.

Change-Id: I43e6b5fe02aca605a5b243c5b876bd44b90b2bf9
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/236580
Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit f2bd7c8579cd90d2f800c777c1981557d81a9b49)
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/237025
2014-12-20 06:35:16 +00:00
configs Broadwell FSP: Successful execution of FspNotify 2014-12-12 23:15:58 +00:00
documentation documentation: Add documentation for timestamp library 2014-11-14 23:57:04 +00:00
payloads libpayload: EHCI: Fix transaction error for interrupt transfer 2014-12-09 06:03:40 +00:00
src veyron: Fix TPM I2C initialization and sync boards 2014-12-20 06:35:16 +00:00
util timestamps: You can never have enough of them! 2014-12-10 02:00:24 +00:00
.gitignore rmodules: add support for rmodtool 2014-03-31 22:25:57 +00:00
COMMIT-QUEUE.ini COMMIT-QUEUE.ini: Add documentation. 2013-11-01 14:08:42 +00:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
Makefile Makefile: Fix dependency tracking for ramstage objects 2014-12-06 01:10:41 +00:00
Makefile.inc Makefile: Fix dependency tracking for ramstage objects 2014-12-06 01:10:41 +00:00
PRESUBMIT.cfg chromeos: Add PRESUBMIT.cfg 2013-05-01 14:31:10 -07:00
README Update README with newer version of the text from the web page 2011-06-15 10:16:33 +02:00
toolchain.inc arch/mips: Add base MIPS architecture support 2014-09-01 11:05:57 +00:00

-------------------------------------------------------------------------------
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.