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mb/google/rex: Perform display configuration override 

This patch enables display port configuration as per the Rex
schematics.

TEST=Able to dump FSP UPD to ensure the override is successful.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I9e81d037416e46e52cb72344425d6d8725dae192
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66209
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
This commit is contained in:
Subrata Banik 2022-07-27 20:11:19 +00:00
parent 828243ebca
commit 8072b420a6
1 changed files with 11 additions and 0 deletions
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11
src/mainboard/google/rex/variants/rex0/overridetree.cb
View File

@ -13,6 +13,17 @@ chip soc/intel/meteorlake
register "tcss_ports[0]" = "TCSS_PORT_DEFAULT(OC0)"
register "tcss_ports[2]" = "TCSS_PORT_DEFAULT(OC_SKIP)"
# Enable eDP in Port A
register "ddi_port_A_config" = "1"
# Enable HDMI in Port B
register "ddi_port_B_config" = "0"
# Enable Display Port Configuration
register "ddi_ports_config" = "{
[DDI_PORT_A] = DDI_ENABLE_HPD,
[DDI_PORT_B] = DDI_ENABLE_HPD | DDI_ENABLE_DDC,
}"
register "serial_io_gspi_mode" = "{
[PchSerialIoIndexGSPI0] = PchSerialIoDisabled,
[PchSerialIoIndexGSPI1] = PchSerialIoPci,