From 8ed53ec8c06c7468a3c4ea1e8fb40012cc375d38 Mon Sep 17 00:00:00 2001 From: Subrata Banik Date: Sat, 21 Nov 2020 19:50:56 +0530 Subject: mb/intel/adlrvp: Enable pre-boot display over HDMI-B port List of changes: 1. Configure CTRLCLK and CTRLDATA for HDMI 2. Enable Ddc and HPD for Port-B 3. Disable dual eDP configuration for Port-A and B TEST=Able to see depthcharge pre-boot screens over HDMI-B port. Change-Id: I7509b981f35fc60a7885b2b07067cb0d35ec625f Signed-off-by: Subrata Banik Reviewed-on: https://review.coreboot.org/c/coreboot/+/47838 Tested-by: build bot (Jenkins) Reviewed-by: Angel Pons --- src/mainboard/intel/adlrvp/devicetree.cb | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/mainboard/intel/adlrvp/devicetree.cb') diff --git a/src/mainboard/intel/adlrvp/devicetree.cb b/src/mainboard/intel/adlrvp/devicetree.cb index ce55fa3914..80edb92003 100644 --- a/src/mainboard/intel/adlrvp/devicetree.cb +++ b/src/mainboard/intel/adlrvp/devicetree.cb @@ -90,7 +90,9 @@ chip soc/intel/alderlake # Enable EDP in PortA register "DdiPortAConfig" = "1" - register "DdiPortBConfig" = "1" + # Enable HDMI in Port B + register "DdiPortBDdc" = "1" + register "DdiPortBHpd" = "1" # TCSS USB3 register "TcssAuxOri" = "0" -- cgit v1.2.3