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Aaron Durbin 5f66b52464 tegra132: add support for TZ carve-out
The TrustZone carve-out needs to be taken into account when
determining the memory layout. However, things are complicated
by the fact that TZ carve-out registers are not accessible by
the AVP.

BUG=chrome-os-partner:30572
BRANCH=None
TEST=Built and booted to end of ramstage. Noted that denver cores
     can read TZ registers while AVP doesn't bother.

Original-Change-Id: I2d2d27e33a334bf639af52260b99d8363906c646
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/207835
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
(cherry picked from commit a4d792f4ed6a0c39eab09d90f4454d3d5dc3db26)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I8fbef03d5ac42d300e1e41aeba9b86c929e01494
Reviewed-on: http://review.coreboot.org/8593
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
2015-03-05 17:32:19 +01:00
3rdparty@f42b78f4f4 3rdparty: Update to latest commit (for Intel microcode) 2015-02-27 18:16:15 +01:00
documentation documentation: begin documenting our use of git submodules 2015-02-13 09:33:24 +01:00
payloads libpayload: Don't try to free individual xhci device slots 2015-03-04 20:46:07 +01:00
src tegra132: add support for TZ carve-out 2015-03-05 17:32:19 +01:00
util board-status: update mediawiki interface 2015-03-04 20:46:01 +01:00
.gitignore .gitignore: add the doxygen directory. 2014-12-14 23:30:45 +01:00
.gitmodules nvidia/cbootimage: avoid upstream's build system 2014-10-02 10:26:58 +02:00
.gitreview
COPYING
Makefile build system: Allow running make what-jenkins-does without ccache 2015-02-17 18:48:14 +01:00
Makefile.inc build system: Only setup git hooks if we're in a git checkout 2015-03-05 15:15:47 +01:00
README
toolchain.inc build: mipsel cross compiler support 2015-02-24 17:28:23 +01:00

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.