commit | 4a48dbe60bb39b2114f1a4c9bfc02a8d1a8e258f | [log] [tgz] |
---|---|---|
author | Ryan Lin <ryan.lin@intel.com> | Tue Sep 28 15:59:34 2021 +0800 |
committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | Mon Oct 04 17:45:38 2021 +0000 |
tree | b41eb17ae89bb8b833fd673c778493539230e8a8 | |
parent | 15066ba8d4696b299d93e5872ee035fc20570d13 [diff] |
src/soc/intel/alderlake: Add PsysPmax setting This patch feeds PsysPmax setting to FSP through UPD and adds a PsysPmax member in chip information so that we can set PsysPmax through devicetree. The PsysPmax needs to be set correctly mapping to maximum system power. Otherwise, system performance would be limited due to the default PsysPmax setting in FSP is only 21W. BUG=b:193864533, b:195615830 TEST=Set PsysPmax to an example value eg 145 in devicetree && put debug code in FSP to print the PsysPmax value before sending to Pcode, ensure the setting is correctly programmed. Change-Id: Ia07aa815f90739240f110cab984068237c02d896 Signed-off-by: Ryan Lin <ryan.lin@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58008 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.
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This makes the resulting coreboot images licensed under the GPL, version 2.