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Tom Warren 64982c5002 tegra/nyan*: sdram updates
nyan_big: Add 204MHz BCT for bringup, use 1.2V for VDD_CPU
Reviewed-on: https://chromium-review.googlesource.com/183939
(cherry picked from commit a6df76afb5342b805baca749abb8265e15748dc1)

nyan_big: Add initial 792MHz BCT
Reviewed-on: https://chromium-review.googlesource.com/183975
(cherry picked from commit 61d0122fdce6dc9479666bb0a5bc079c6389f78a)

nyan_big: use RAM_CODE[3:2] for ram code
Reviewed-on: https://chromium-review.googlesource.com/184076
(cherry picked from commit 35e5c5e473f871cdc897473a31586afbececd716)

tegra124: support tri-state Board Id
Reviewed-on: https://chromium-review.googlesource.com/183855
(cherry picked from commit 1a9d1bd73aa2cd0c36203b247976ad0d00a360e4)

nyan*: Fix SPI pinmux configuration
Reviewed-on: https://chromium-review.googlesource.com/184281
(cherry picked from commit ac4106b673c285af66d72392bd4a8522aba98489)

nyan_big: Add 4GB 204/792MHz BCTs
Reviewed-on: https://chromium-review.googlesource.com/184159
(cherry picked from commit 5ff002d09f8db0543b58962f6c0d24627fb0937e)

tegra124: Add function for obtaining DRAM size via MC regs
Reviewed-on: https://chromium-review.googlesource.com/184535
(cherry picked from commit d4580c46de649903a266a99eb11c9126ba385b48)

tegra124/nyan*: Obtain DRAM size dynamically
Reviewed-on: https://chromium-review.googlesource.com/184431
(cherry picked from commit a7db71744771decc04cf1966efba70bf4897cfa3)

tegra124: Rearrange iRAM layout to allow more space for romstage
Reviewed-on: https://chromium-review.googlesource.com/184240
(cherry picked from commit 6bdaabbc068146a4516c724b71d31bb777dabcfc)

tegra124: Fix MemoryType field name in SDRAM parameters.
Reviewed-on: https://chromium-review.googlesource.com/185113
(cherry picked from commit 9caccd1e86a8c683402fab87d9f3a49b87496e97)

nyan_big: Initialize SDRAM without BootROM.
Reviewed-on: https://chromium-review.googlesource.com/183624
(cherry picked from commit a1cbc00aa80ec1ea52e833a8e31c8e4b27160e70)

tegra124: move FB_SIZE_MB to a more appropriate location
Reviewed-on: https://chromium-review.googlesource.com/184930
(cherry picked from commit ddea486fd4410394417c4e59039d46a324918bdc)

nyan: Initialize SDRAM without BootROM.
Reviewed-on: https://chromium-review.googlesource.com/185114
(cherry picked from commit 1ff51b580b28553919f91b11b443251b048cf26b)

tegra124: Save SDRAM parameters to PMC registers for LP0
Reviewed-on: https://chromium-review.googlesource.com/182928
(cherry picked from commit 7476b4bd0ecdc312476cce871d22f57915a0bd86)

tegra124: Rewrite SDRAM parameter saving code to be more efficient
Reviewed-on: https://chromium-review.googlesource.com/184388
(cherry picked from commit 25084bd0407624e4b2ff82388c32af1198c501a6)

nyan: Slightly change the way SDRAM parameter files are set up
Reviewed-on: https://chromium-review.googlesource.com/185286
(cherry picked from commit a31887b804f23e031c395113db582cd71f3d1b6d)

Squashed 16 commits for SDRAM support on nyan and nyan_big.

Change-Id: I07419985376277083d62400dd14fe8273f6d5ca8
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6949
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-10-22 03:56:49 +02:00
3rdparty@f37e0e64ac AMD Steppe Eagle: Update reference to BLOBs repo (3rdparty) 2014-09-01 00:37:16 +02:00
documentation mkelfimage: remove 2014-10-08 14:27:24 +02:00
payloads libpayload: Don't use default path for kconfig 2014-10-17 11:25:10 +02:00
src tegra/nyan*: sdram updates 2014-10-22 03:56:49 +02:00
util util/fletcher: fix debug option parsing 2014-10-18 14:45:42 +02:00
.gitignore .gitignore: add 3 executables that can be built in util/ 2014-08-11 06:26:01 +02:00
.gitmodules nvidia/cbootimage: avoid upstream's build system 2014-10-02 10:26:58 +02:00
.gitreview add .gitreview 2012-11-01 23:13:39 +01:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
Makefile ARM: Generalize armv7 as arm. 2014-09-08 18:59:23 +02:00
Makefile.inc Kconfig: Allow native vga init to be selectable for SeaBIOS payload 2014-10-04 07:44:49 +02:00
README Update README with newer version of the text from the web page 2011-06-15 10:16:33 +02:00
toolchain.inc coreboot arm64: Add support for arm64 into coreboot framework 2014-09-23 18:10:32 +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.