From c9ee8cbd546e20d64e706e8f5c48a0e352cda823 Mon Sep 17 00:00:00 2001 From: Frank Wu Date: Wed, 28 Apr 2021 14:04:47 +0800 Subject: mb/google/zork/vilboz: Disable HDMI 2.0 for Vilboz Disable HDMI 2.0 for Vilboz and then support display resolution 4K 30Hz BUG=b:179170193 BRANCH=firmware-zork-13434.B TEST=verified that the resolution of the display is 4K 30Hz Signed-off-by: Frank Wu Change-Id: Ib0dc0d584f0e87bc9c3da85a583cb8c8bed76440 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52724 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Huang Reviewed-by: Kangheui Won --- src/mainboard/google/zork/variants/vilboz/overridetree.cb | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mainboard/google/zork/variants/vilboz/overridetree.cb b/src/mainboard/google/zork/variants/vilboz/overridetree.cb index fac4c7f8b8..43a64b0d7e 100644 --- a/src/mainboard/google/zork/variants/vilboz/overridetree.cb +++ b/src/mainboard/google/zork/variants/vilboz/overridetree.cb @@ -42,6 +42,11 @@ chip soc/amd/picasso register "pwrdown_bloff_to_varybloff" = "5" register "min_allowed_bl_level" = "0" + # Set HDMI 2.0 disable function + # bit0~3: disable HDMI 2.0 DDI0~3 + # disable DDI1 + register "hdmi2_disable" = "2" + # USB OC pin mapping register "usb_port_overcurrent_pin[1]" = "USB_OC_NONE" # LTE instead of USB C1 -- cgit v1.2.3