mb/google/dedede: Clean up LTE device enabling

On some dedede variants, USB port 2.3/3.3 might be connected to either
LTE device or Type-A external port depending upon FW_CONFIG. Commit
856b579 ("mb/google/dedede/var/kracko: Update LTE USB port
configuration") enabled Type-A external port by default in override
tree and updated the config dynamically for LTE USB device if
FW_CONFIG indicated support for it. This was required because sconfig
lacked the support for multiple override devices. Commit
b9c22e0 ("util/sconfig: Compare probe conditions for override device
match") fixed this behavior in sconfig and now we can add multiple
override devices using different FW_CONFIG probe statements in
override tree. Hence, this change moves the LTE USB device to override
tree for metaknight, kracko and drawcia variants.

In addition to that, drawcia needs to be update reset_gpio depending
upon board_id. Thus, alias `lte_usb2` is used in drawcia override tree
to fix the reset_gpio for older boards i.e. board_id <= 9.

Change-Id: Ie5b205594680d9c2b8543c5c99325d95620cafd2
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57742
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
GitOrigin-RevId: e7821e8de00fa673f75d620fa320ce7629ef2ce1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/3172446
Tested-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Commit-Queue: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/5101713
Tested-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Commit-Queue: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-by: Shou-Chieh Hsu <shouchieh@chromium.org>
9 files changed
tree: 2de8cc66c0e902ab3a3f784152bb3639ca8c07a3
  1. configs/
  2. Documentation/
  3. LICENSES/
  4. payloads/
  5. src/
  6. tests/
  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. PRESUBMIT.cfg
  21. README.md
  22. 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.