| commit | 096ce1444ec7fa204f331a75c2ac9d00ea00bf12 | [log] [tgz] |
|---|---|---|
| author | Sridahr Siricilla <sridhar.siricilla@intel.com> | Fri Sep 17 22:25:17 2021 +0530 |
| committer | Felix Held <felix-coreboot@felixheld.de> | Thu Jul 14 23:12:36 2022 +0000 |
| tree | a14079aed4bda3bb5a6ae64308ca7c8f43b488ff | |
| parent | 1dc080fc1d812628b80529441c52a5ee571340ed [diff] |
soc/intel/alderlake: Support PCIe hardware compliance test mode
The validation process verifies that hardware components comply with
the standard hardware specifications. For instance, PCI express
implementation must comply with the hardware PCIe specification
requirements: Electrical, Configuration, Link Protocol and Transaction
Protocol. To perform these tests the hardware must be configured in a
particular state: some feature related to power management need to be
turned off, hot plug should be enabled...
This patch sets the appropriate FSP Updateable Product Data flags to
get the hardware in the proper configuration:
- Enable PCIe hotplug on all ports
- Set clock sources to run free
- Set the FSP compliance test mode flag
BUG=b:235863379
TEST=Compilation with and without the flag
Verify code path with instrumentation
Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Change-Id: Ic07b9276121dfbd273a8f63a1f775ddbd3566884
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65114
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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.
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.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).Optional:
make menuconfig and make nconfig)Please consult https://www.coreboot.org/Build_HOWTO for details.
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.
Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:
You can contact us directly on the coreboot mailing list:
https://www.coreboot.org/Mailinglist
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.