erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mb/lattepanda/mu: Update eDP/HDMI in devicetree

Browse source 
Updated DDI port configuration to properly enable eDP (Port A)
and HDMI (Port B) with HPD and DDC settings on LattePanda MU.

This change ensures both internal and external displays are
detected and initialized correctly during boot.

Change-Id: I84e5bc4b8a26f58b9cb26a4018eef640ac245e7f
Signed-off-by: Kun-Yi Chen <kunyi.chen@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88194
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kun-Yi Chen 2025-06-25 22:10:02 +08:00 • committed by Matt DeVillier
commit 2ec9a9f17d
1 changed files with 2 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/mainboard/lattepanda/mu/devicetree.cb
View file

@ -8,7 +8,9 @@ chip soc/intel/alderlake
# Enable EDP in PortA
register "ddi_portA_config" = "1"
# Enable HDMI in Port B
register "ddi_portB_config" = "1"
register "ddi_ports_config" = "{
[DDI_PORT_A] = DDI_ENABLE_HPD,
[DDI_PORT_B] = DDI_ENABLE_HPD | DDI_ENABLE_DDC,
}"