mb/amd/majolica: Add chromeos support

This change enables vboot support. To use it add CHROMEOS=y to your
config.

TEST=Boot majolica and see verstage run, and then see depthcharge load.

coreboot-4.13-1730-g881092709a5e Fri Feb  5 23:50:28 UTC 2021 verstage starting (log level: 8)...
Phase 1
FMAP: area GBB found @ 805000 (458752 bytes)
VB2:vb2_check_recovery() Recovery reason from previous boot: 0x0 / 0x0
Phase 2
Phase 3
FMAP: area GBB found @ 805000 (458752 bytes)
FMAP: area VBLOCK_A found @ 30000 (8192 bytes)
FMAP: area VBLOCK_A found @ 30000 (8192 bytes)
VB2:vb2_verify_keyblock() Checking keyblock signature...
VB2:vb2_verify_digest() HW RSA forbidden, using SW
VB2:vb2_rsa_verify_digest() HW modexp forbidden, using SW
FMAP: area VBLOCK_A found @ 30000 (8192 bytes)
FMAP: area VBLOCK_A found @ 30000 (8192 bytes)
VB2:vb2_verify_fw_preamble() Verifying preamble.
VB2:vb2_verify_digest() HW RSA forbidden, using SW
VB2:vb2_rsa_verify_digest() HW modexp forbidden, using SW
Phase 4
FMAP: area FW_MAIN_A found @ 32000 (3137280 bytes)
VB2:vb2api_init_hash() HW crypto forbidden by TPM flag, using SW
VB2:vb2_verify_digest() HW RSA forbidden, using SW
VB2:vb2_rsa_verify_digest() HW modexp forbidden, using SW
Saving secdata firmware
Saving secdata kernel
Saving nvdata
Slot A is selected
FMAP: area FW_MAIN_A found @ 32000 (3137280 bytes)
CBFS: mcache @0x02017000 built for 9 files, used 0x1ec of 0x800 bytes
CBFS: Found 'fallback/romstage' @0x0 size 0x753c in mcache @0x02017000
BS: verstage times (exec / console): total (unknown) / 116 ms

coreboot-4.13-1730-g881092709a5e Fri Feb  5 23:50:28 UTC 2021 romstage starting (log level: 8)...
Family_Model: 00a50f00
FMAP: area FW_MAIN_A found @ 32000 (3137280 bytes)
CBFS: Found 'fspm.bin' @0x15440 size 0x2257d in mcache @0x02017138

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I43f0c6e33649332057f41f8813a86571b06032f1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50343
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
2 files changed
tree: d11bc76a90c811af03c0bb262373e974e233cf2f
  1. 3rdparty/
  2. configs/
  3. Documentation/
  4. LICENSES/
  5. payloads/
  6. src/
  7. tests/
  8. util/
  9. .checkpatch.conf
  10. .clang-format
  11. .editorconfig
  12. .gitignore
  13. .gitmodules
  14. .gitreview
  15. AUTHORS
  16. COPYING
  17. gnat.adc
  18. MAINTAINERS
  19. Makefile
  20. Makefile.inc
  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.