Gitiles
Code Review Sign In
review.coreboot.org / coreboot / d957d12e6dbf2eb912904f8cda7f9138a2ac314e
commitd957d12e6dbf2eb912904f8cda7f9138a2ac314e[log] [tgz]
authorMatt DeVillier <matt.devillier@gmail.com>Tue Mar 31 12:18:44 2020 -0500
committerMatt DeVillier <matt.devillier@gmail.com>Fri Apr 03 16:23:10 2020 +0000
tree303eeb7c41cf0f5af26367f01e36a9c7c9eb3ee6
parente4c784bd0d91fe0bf4e0e8e5b0c9fa173235cea6 [diff]
mb/google/glados: clean up variant devicetrees

In preparation for conversion to overridetree format, clean up
the variant devicetrees in order to minimize the differences
across glados variants. This entails:

- minor reformatting and reordering of devicetree entries
- addition of setting default values on boards which skipped them
- disabling unused I2C2 on boards which left it enabled
- ensuring TCC offset set for all SKL-Y boards
- setting VR mailbox command 1 for caroline
- skipping init for UART2 on cave and glados
- dropping unused PCIe RP5 for sentry

Change-Id: I628b20a69fab187e67901c9eb98c0e2ddcb76b0d
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39981
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
7 files changed
tree: 303eeb7c41cf0f5af26367f01e36a9c7c9eb3ee6
  1. 3rdparty/
  2. configs/
  3. Documentation/
  4. LICENSES/
  5. payloads/
  6. src/
  7. util/
  8. .checkpatch.conf
  9. .clang-format
  10. .editorconfig
  11. .gitignore
  12. .gitmodules
  13. .gitreview
  14. AUTHORS
  15. COPYING
  16. gnat.adc
  17. MAINTAINERS
  18. Makefile
  19. Makefile.inc
  20. README.md
  21. toolchain.inc
README.md

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 https://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:

Build Requirements

  • make
  • gcc / g++ Because Linux distribution compilers tend to use lots of patches. coreboot does lots of "unusual" things in its build system, some of which break due to those patches, sometimes by gcc aborting, sometimes - and that's worse - by generating broken object code. Two options: use our toolchain (eg. make crosstools-i386) or enable the ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).
  • iasl (for targets with ACPI support)
  • pkg-config
  • libssl-dev (openssl)

Optional:

  • doxygen (for generating/viewing documentation)
  • gdb (for better debugging facilities on some targets)
  • ncurses (for make menuconfig and make nconfig)
  • flex and bison (for regenerating parsers)

Building coreboot

Please consult https://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 https://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:

https://www.coreboot.org

You can contact us directly on the coreboot mailing list:

https://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.