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review.coreboot.org / coreboot / bf4592743c6b90c60a71842630e426a03b334e11
commitbf4592743c6b90c60a71842630e426a03b334e11[log] [tgz]
authorKenneth Chan <kenneth.chan@quanta.corp-partner.google.com>Wed Jan 05 11:14:59 2022 +0800
committerKarthik Ramasubramanian <kramasub@google.com>Wed Jan 12 03:16:27 2022 +0000
treec1c64121c9fa4017158059851f0f041e5bf72b5c
parent8d092aa5d9fdcaf61918d05b0916671419b1e174 [diff]
mb/google/guybrush/var/dewatt: Update unused GPIO pins

According to H/W schematics,
fingerprint, SD controller, WWAN/LTE and PEN modules are not stuffed and hence the following GPIOs are marked as not connected:
GPIO_3 : TP247
GPIO_4 : TP218
GPIO_5 : TP220
GPIO_8 : TP245
GPIO_11: TP244
GPIO_17: TP194
GPIO_18: TP195
GPIO_21: TP243
GPIO_24: TP196
GPIO_31: TP50
GPIO_42: TP219
GPIO_69: TP217
GPIO_115: TP235
GPIO_116: TP205
GPIO_140: TP226
GPIO_142: TP225
GPIO_144: TP227

BUG=b:204155627
TEST=emerge-guybrush coreboot chromeos-bootimage

Signed-off-by: Kenneth Chan <kenneth.chan@quanta.corp-partner.google.com>
Change-Id: I552fd6af1cd827e4e41be1a954bf95c3afbb6a86
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60782
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
3 files changed
tree: c1c64121c9fa4017158059851f0f041e5bf72b5c
  1. 3rdparty/
  2. configs/
  3. Documentation/
  4. LICENSES/
  5. payloads/
  6. spd/
  7. src/
  8. tests/
  9. util/
  10. .checkpatch.conf
  11. .clang-format
  12. .editorconfig
  13. .gitignore
  14. .gitmodules
  15. .gitreview
  16. AUTHORS
  17. COPYING
  18. gnat.adc
  19. MAINTAINERS
  20. Makefile
  21. Makefile.inc
  22. README.md
  23. 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.