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authorFrank Wu <frank_wu@compal.corp-partner.google.com>2021-04-28 14:04:47 +0800
committerPatrick Georgi <pgeorgi@google.com>2021-05-04 08:38:11 +0000
commitc9ee8cbd546e20d64e706e8f5c48a0e352cda823 (patch)
tree3cd2acd315aaee074b4f32b147f31b1dca66ebaa /src/mainboard
parentab8cc142a727c917aa58bd3ff1e3097332ee2610 (diff)
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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 <frank_wu@compal.corp-partner.google.com> Change-Id: Ib0dc0d584f0e87bc9c3da85a583cb8c8bed76440 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52724 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Huang <patrick.huang@amd.corp-partner.google.com> Reviewed-by: Kangheui Won <khwon@chromium.org>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/zork/variants/vilboz/overridetree.cb5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/variants/vilboz/overridetree.cb b/src/mainboard/google/zork/variants/vilboz/overridetree.cb
index fac4c7f8b874..43a64b0d7e81 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