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Kyösti Mälkki 307320c23f sb,soc/intel: Address TCO SECOND_TO_STS name collision 
Later soc/intel/common/smbus addresses TCO2_STS as a separate
16-bit register, while baytrail and braswell assumes 32-bit
wide TCO1_STS to extend as TCO2_STS.

In src/soc/intel/denverton_ns:
  #define TCO2_STS_SECOND_TO 0x02

In soc/intel/baytrail,braswell:
  #define SECOND_TO_STS (1 << 17)

Elsewehere
  #define SECOND_TO_STS (1 << 1)

It's expected that we remove the first (1 << 17) case and only
access TCO2_STS as a separate 16-bit register. For now, use
unique names to avoid confusion.

Change-Id: I07cc46a9d600b2bf2f23588b26891268e9ce4de0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70044
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
2022-11-28 10:09:04 +00:00
3rdparty 3rdparty/libgfxinit: Update submodule pointer to 066e52eeaa32 2022-11-26 08:11:52 +00:00
configs configs: Buildtest 64bit amd/picasso 2022-11-16 04:22:29 +00:00
Documentation Docs: Add SPDX headers to Makefiles 2022-11-20 15:24:32 +00:00
LICENSES src/mb: Update unlicensable files with the CC-PDDC SPDX ID 2022-08-13 19:25:12 +00:00
payloads libpayload: Fix compiler warnings 2022-11-21 21:08:30 +00:00
spd spd/lp5: Re-generate the SPD data 2022-10-28 12:06:29 +00:00
src sb,soc/intel: Address TCO SECOND_TO_STS name collision 2022-11-28 10:09:04 +00:00
tests cbmem_top_chipset: Change the return value to uintptr_t 2022-11-18 16:00:45 +00:00
util util/testing: Fully clean all but the standard GCC build 2022-11-25 13:55:27 +00:00
.checkpatch.conf checkpatch.conf: Ignore check for pointer comparisons to NULL 2022-09-22 15:13:35 +00:00
.clang-format
.editorconfig
.gitignore .gitignore: Add .vscode/ 2022-08-30 17:56:55 +00:00
.gitmodules Add SBOM (Software Bill of Materials) Generation 2022-08-22 14:48:46 +00:00
.gitreview
.mailmap
AUTHORS arm/libgcc: Support signed 64-bit division 2022-08-13 17:20:32 +00:00
COPYING
gnat.adc
MAINTAINERS MAINTAINERS: Make Misc Fixes 2022-10-30 01:48:45 +00:00
Makefile Makefile: Add targets to add and remove symlinks 2022-10-17 14:00:46 +00:00
Makefile.inc build: List all Kconfigs in CBFS config file, compress it 2022-11-18 17:19:44 +00:00
README.md Treewide: Remove doxygen config files and targets 2022-05-28 01:24:51 +00:00
toolchain.inc coreboot: Add support for include-what-you-use 2022-10-11 14:33:28 +00:00

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:

  • 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.