[coreboot-gerrit] [S] Change in coreboot[main]: soc/intel/pantherlake: Display Sign-of-Life during memory training

[Jérémy Compostella (Code Review)]

Attention is currently required from: Alok Agarwal, Intel coreboot Reviewers, Jayvik Desai, Jérémy Compostella, Kapil Porwal, Pranava Y N, Vikrant L Jadeja.

Hello Alok Agarwal, Anil Kumar K, Intel coreboot Reviewers, Jayvik Desai, Kapil Porwal, Pranava Y N, Subrata Banik, Vikrant L Jadeja, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/85454?usp=email

to look at the new patch set (#12).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: soc/intel/pantherlake: Display Sign-of-Life during memory training
......................................................................

soc/intel/pantherlake: Display Sign-of-Life during memory training

This commit activates the Firmware Support Package (FSP) Memory
Sign-of-Life feature, which allows for the display of a user-configurable
text message on-screen during memory initialization. This feature enhances
the user experience by providing reassurance that the memory training
process is underway and may take some time.

The following FSP-M UPDs (Updateable Product Data) are utilized:

- VgaInitControl (boolean): Initializes graphics, establishes VGA text
  mode, and centers the VgaMessage text on the screen. It clears the screen,
  disables VGA text mode, and deactivates graphics upon exiting the
  FSP-M (Firmware Support Package - Memory Initialization).

- VbtPtr (address): This is a pointer to the VBT (Video BIOS Table) binary.

- VbtSize (unsigned integer): Indicates the size of the VBT binary.

- LidStatus (boolean): Given the limited resources available at early boot
  stages, the text message is shown on a single monitor. The lid status
  determines the most appropriate display to use:

- 0: If the lid is closed, display the text message on an external
    display if one is available; otherwise, display nothing.

- 1: If the lid is open, display the message on the internal display; if
    unavailable, default to an external display.

- VgaMessage (string): Specifies the text message to be displayed.

When the FSP_UGOP_EARLY_SIGN_OF_LIFE flag is set, coreboot is configured to
use the UPDs mentioned above to show a text message during the memory
training phase. This text message can be customized through the locale text
mechanism using the identifier memory_training_desc.

Signed-off-by: Anil Kumar 
Signed-off-by: Jeremy Compostella 
Change-Id: I993eb0d59cd01fa62f35a77f84e262e389efb367
---
M src/soc/intel/pantherlake/romstage/fsp_params.c
1 file changed, 45 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/54/85454/12