[S] Change in coreboot[main]: mb/google/rex/var/rex: Configure cpu power limits by battery status

[Jamie Ryu (Code Review)]

Attention is currently required from: Brandon Breitenstein, Caveh Jalali, Eran Mitrani, Hannah Williams, Jamie Ryu, Kapil Porwal, Subrata Banik, Sukumar Ghorai, Tarun, Tim Van Patten.

Hello Brandon Breitenstein, Caveh Jalali, Eran Mitrani, Hannah Williams, Kapil Porwal, Subrata Banik, Sukumar Ghorai, Tarun, build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/78322?usp=email

to look at the new patch set (#7).

The following approvals got outdated and were removed:
Code-Review+1 by Subrata Banik, Code-Review+1 by Sukumar Ghorai, Verified+1 by build bot (Jenkins)

Change subject: mb/google/rex/var/rex: Configure cpu power limits by battery status
......................................................................

mb/google/rex/var/rex: Configure cpu power limits by battery status

When battery level is below critical level or battery is not present,
cpus need to run with a power optimized configuration to avoid platform
instabilities. This will check the current battery status and configure
cpu power limits properly.

BUG=b:296952944
TEST=Build rex0 and check cpu power limits are configured with
a performance efficient configuration and the platform boots to OS if
battery level is above the critical level. And check cpu power limits
are configured with a power optimized configuration and boots to OS
without an issue if battery is not present or battery level is at or
below critical level.

Change-Id: I12fd40abda76c8e7522b06a5aee72665f32ddec8
Signed-off-by: Jamie Ryu 
---
M src/mainboard/google/rex/variants/baseboard/rex/ramstage.c
1 file changed, 29 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/22/78322/7