| commit | 85801f670de57de1e3e4785916d667a190fcb918 | [log] [tgz] |
|---|---|---|
| author | Gaggery Tsai <gaggery.tsai@intel.com> | Wed Mar 25 13:13:04 2020 -0700 |
| committer | Edward O'Callaghan <quasisec@chromium.org> | Mon Apr 20 06:57:51 2020 +0000 |
| tree | 3674563de09f53b54e147eea745e3bbb99f1afff | |
| parent | 2246216971793ff918ccdf22675ca45bc5d79098 [diff] |
mb/google/hatch/vr/puff: Add psys_pmax calculation
This patch adds psys_pmax calculation. There are two types of power
sources. One is barrel jack and the other is USB TYPE-C. The voltage
level is fixed for a barrel jack while TYPE-C may vary depending
on power ratings. We need to get voltage information from
EC and calculate correct psys_pmax value. The psys_pmax needs to be
set before FSP-S since FSP-S will handle the setting passing to pcode,
so move the routine ahead to variant_ramstage_init.
BUG=b:151972149
TEST=emerge-puff coreboot chromeos-bootimage
check firmware log and ensure psys_pmax is passed to FSP
check the data from dump_intel_rapl_consumption in the OS and
ensure the power data is close to an external power meter.
Signed-off-by: Gaggery Tsai <gaggery.tsai@intel.com>
Change-Id: I8ea01f856411e05a533489280fc2b4a46a1440c5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39850
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@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.
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For details please consult:
ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).Optional:
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