|author||Wonkyu Kim <firstname.lastname@example.org>||Tue Mar 03 01:43:45 2020 -0800|
|committer||Patrick Georgi <email@example.com>||Tue Mar 10 09:57:41 2020 +0000|
soc/intel/tigerlake: Enable Hybrid storage mode To use Optane memory, we need to set 2x2 PCIe lane mode while we need to set 1x4 PCIe lane mode for NVMe. The mode can be selected using the FIT tool at build time. By enabling hybrid storage mode in FSP, FSP will set 2x2 PCIe lane mode if Optane memory is detected and the mode is not 2x2 and set 1x4 PCIe lane mode if Optane memory is not detected and the mode is not 1x4 during boot up. The mode is saved in SPI NOR for next boot. BUG=b:148604250 BRANCH=none TEST=Build and test booting TGLRVP from NVMe and Optane Check PCIe lane configuration. Show all the NVMe devices lspci -d ::0108 Show all the NVMe devices and be really verbose lspci -vvvd ::0108 Print PCIe lane capabilities and configurations for all the NVMe devices. lspci -vvvd ::0108 | grep -e x Print all the PCIe information of the device ae:00.0 lspci -vvvs ae: Signed-off-by: Wonkyu Kim <firstname.lastname@example.org> Change-Id: I25bc380697b0774cc30ad1b31ad785ee18822619 Reviewed-on: https://review.coreboot.org/c/coreboot/+/39232 Reviewed-by: Angel Pons <email@example.com> Reviewed-by: Nick Vaccaro <firstname.lastname@example.org> Reviewed-by: Srinidhi N Kaushik <email@example.com> Reviewed-by: Caveh Jalali <firstname.lastname@example.org> Tested-by: build bot (Jenkins) <email@example.com>
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_TOOLCHAINKconfig option if you're feeling lucky (no support in this case).
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.
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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.