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review.coreboot.org / coreboot / 85d9f470144b8a125b5e439de19138fd5d83c1d5
commit85d9f470144b8a125b5e439de19138fd5d83c1d5[log] [tgz]
authorMaulik V Vaghela <maulik.v.vaghela@intel.com>Mon Nov 08 07:53:37 2021 +0000
committerTim Wawrzynczak <twawrzynczak@chromium.org>Wed Nov 17 15:54:10 2021 +0000
treef7ac1d12e301788b7395ddc19f25a3ed4d99b410
parentd16a085110d42e28d273e94f96b60ef39c4bb0c2 [diff]
Revert "soc/intel/adl: Drop SGPM, RGPM and EGPM methods"

This reverts commit 1399442289607acc5203fb12df64e9081b3c3aa4.

Reason for revert:
Some Cr50 chips with old firmware version (x.y.22) don't support
long pulse interrupt command, requiring dynamic GPIO PM to be disabled
to intercept short pulse interrupt.

Due to this coreboot needs to expose SGPM, RGPM and EGPM ACPI methods
to support power gating of GPIO communities from the kernel when dynamic
GPIO PM is disabled.

BUG=b:204832081
BRANCH=None
Test= S0ix works with dynamic PM disabled.

Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Change-Id: I2b5b00878062f8a499641d7a47db54ed078cd6cf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58811
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Scott Chao <scott_chao@wistron.corp-partner.google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
1 file changed
tree: f7ac1d12e301788b7395ddc19f25a3ed4d99b410
  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.