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Chris Morgan 5e5e789f9b nb/intel/haswell/peg: Add PEG driver stub 
This is a port of https://review.coreboot.org/c/coreboot/+/22337 to the
Haswell northbridge.  This code is necessary to support the dGPU of the
t440p. Code was cut and pasted from Sandy Bridge with vendor IDs updated
to the correct Haswell values.  Tested on t440p with dGPU on Ubuntu
18.04.4 with 5.3.0-28 kernel. Without patches dmesg reports Nouveau is
unable to read the VBIOS of the dGPU as it has an invalid checksum (I
checked that the ROM in CBFS is correct). With this patch DRM works
correctly with both the Nouveau driver and the Nvidia proprietary
driver. Windows 10 1909 also tested but generates bluescreen once GPU
driver is loaded.

Change-Id: Ie5f089fb6fd774e6c61f4f9281e2945bd44edf27
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38743
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
 		2020-03-06 07:54:26 +00:00
3rdparty Update vboot submodule to upstream master 2020-02-19 12:07:57 +00:00
Documentation nb/intel/haswell/peg: Add PEG driver stub 2020-03-06 07:54:26 +00:00
LICENSES LICENSES: Add licenses used in the coreboot repo 2019-10-30 08:23:51 +00:00
configs soc/intel/apollolake: Fix flashconsole, again 2020-03-02 11:49:50 +00:00
payloads libpayload: add read64() and write64() 2020-03-04 10:39:56 +00:00
src nb/intel/haswell/peg: Add PEG driver stub 2020-03-06 07:54:26 +00:00
util src/arch/x86: Convert to SPDX license header 2020-03-06 07:48:24 +00:00
.checkpatch.conf .checkpatch.conf: Ignore a few more warnings 2018-08-13 12:23:24 +00:00
.clang-format lint/clang-format: set to 96 chars per line 2019-06-13 20:14:00 +00:00
.editorconfig Add .editorconfig file 2019-09-10 12:52:18 +00:00
.gitignore util: Remove viatool 2020-03-04 15:46:44 +00:00
.gitmodules submodules: Add 3rdparty/amd_blobs 2019-10-31 12:28:38 +00:00
.gitreview
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AUTHORS src/arch/riscv: Convert to SPDX license header 2020-03-06 07:48:09 +00:00
COPYING
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MAINTAINERS commonlib: Add commonlib/bsd 2020-01-28 06:36:13 +00:00
Makefile Makefile: Explicitly silence sub-makes 2020-03-04 15:55:26 +00:00
Makefile.inc treewide: Capitalize 'CMOS' 2020-02-24 14:10:00 +00:00
README.md README.md: Remove link to deprecated wiki 2019-11-16 20:39:55 +00:00
gnat.adc
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toolchain.inc Makefile: Remove romcc 2019-12-27 08:59:59 +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:

  • 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.