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authorSubrata Banik <subrata.banik@intel.com>2021-06-09 21:57:49 +0530
committerSubrata Banik <subrata.banik@intel.com>2021-06-16 03:50:20 +0000
commit8a18bd8500fee7c43e257d3dfd1cc3f7db82c88c (patch)
treea171471b3dd21893f6b3cc9e56c93beb9c160d02 /src/mainboard/intel/shadowmountain/variants/baseboard
parent50134eccbdf4878f03e64b8085832a86c5b928f0 (diff)
soc/intel/alderlake/romstage: Update display UPDs based on InternalGfx
Disable all display related UPDs if IGD is not enabled as FSP don't need to perform display port initialization while IGD itself is disabled else assign UPDs based on devicetree config. TEST=Dump FSP-M display related UPDs with IGD enable and disable to ensure patch integrity. Change-Id: I0479904141dfc5e707679109aa18b7ef4264cf96 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55273 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/mainboard/intel/shadowmountain/variants/baseboard')
-rw-r--r--src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb22
1 files changed, 7 insertions, 15 deletions
diff --git a/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb b/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb
index 5b6a09710d..d5e5951c2a 100644
--- a/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb
+++ b/src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb
@@ -118,21 +118,13 @@ chip soc/intel/alderlake
register "DdiPortAConfig" = "1" # eDP
register "DdiPortBConfig" = "0"
- register "DdiPortAHpd" = "1"
- register "DdiPortBHpd" = "1"
- register "DdiPortCHpd" = "0"
- register "DdiPort1Hpd" = "1"
- register "DdiPort2Hpd" = "1"
- register "DdiPort3Hpd" = "0"
- register "DdiPort4Hpd" = "0"
-
- register "DdiPortADdc" = "0"
- register "DdiPortBDdc" = "1"
- register "DdiPortCDdc" = "0"
- register "DdiPort1Ddc" = "0"
- register "DdiPort2Ddc" = "0"
- register "DdiPort3Ddc" = "0"
- register "DdiPort4Ddc" = "0"
+ # Enable Display Port Configuration
+ register "ddi_ports_config" = "{
+ [DDI_PORT_A] = DDI_ENABLE_HPD,
+ [DDI_PORT_B] = DDI_ENABLE_HPD | DDI_ENABLE_DDC,
+ [DDI_PORT_1] = DDI_ENABLE_HPD,
+ [DDI_PORT_2] = DDI_ENABLE_HPD,
+ }"
# Intel Common SoC Config
#+-------------------+---------------------------+