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-rw-r--r--src/mainboard/purism/librem_skl/Kconfig1
-rw-r--r--src/mainboard/purism/librem_skl/Makefile.inc2
-rw-r--r--src/mainboard/purism/librem_skl/gma-mainboard.ads28
-rw-r--r--src/mainboard/purism/librem_skl/variants/librem13v2/devicetree.cb8
-rw-r--r--src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb8
5 files changed, 47 insertions, 0 deletions
diff --git a/src/mainboard/purism/librem_skl/Kconfig b/src/mainboard/purism/librem_skl/Kconfig
index a998a936d8..a58ca0b718 100644
--- a/src/mainboard/purism/librem_skl/Kconfig
+++ b/src/mainboard/purism/librem_skl/Kconfig
@@ -8,6 +8,7 @@ config BOARD_PURISM_BASEBOARD_LIBREM_SKL
select SOC_INTEL_COMMON_BLOCK_HDA_VERB
select SOC_INTEL_SKYLAKE
select SPD_READ_BY_WORD
+ select MAINBOARD_HAS_LIBGFXINIT
select MAINBOARD_HAS_LPC_TPM
if BOARD_PURISM_BASEBOARD_LIBREM_SKL
diff --git a/src/mainboard/purism/librem_skl/Makefile.inc b/src/mainboard/purism/librem_skl/Makefile.inc
index 35f0f6cbde..ad4fd525dc 100644
--- a/src/mainboard/purism/librem_skl/Makefile.inc
+++ b/src/mainboard/purism/librem_skl/Makefile.inc
@@ -15,3 +15,5 @@
ramstage-y += ramstage.c
ramstage-y += hda_verb.c
+
+ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/purism/librem_skl/gma-mainboard.ads b/src/mainboard/purism/librem_skl/gma-mainboard.ads
new file mode 100644
index 0000000000..1aba615128
--- /dev/null
+++ b/src/mainboard/purism/librem_skl/gma-mainboard.ads
@@ -0,0 +1,28 @@
+--
+-- This file is part of the coreboot project.
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; either version 2 of the License, or
+-- (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+-- GNU General Public License for more details.
+--
+
+with HW.GFX.GMA;
+with HW.GFX.GMA.Display_Probing;
+
+use HW.GFX.GMA;
+use HW.GFX.GMA.Display_Probing;
+
+private package GMA.Mainboard is
+
+ ports : constant Port_List :=
+ (Internal,
+ HDMI1,
+ others => Disabled);
+
+end GMA.Mainboard;
diff --git a/src/mainboard/purism/librem_skl/variants/librem13v2/devicetree.cb b/src/mainboard/purism/librem_skl/variants/librem13v2/devicetree.cb
index 944a2dddb5..deac4105f1 100644
--- a/src/mainboard/purism/librem_skl/variants/librem13v2/devicetree.cb
+++ b/src/mainboard/purism/librem_skl/variants/librem13v2/devicetree.cb
@@ -1,5 +1,13 @@
chip soc/intel/skylake
+ register "gpu_pp_up_delay_ms" = "200"
+ register "gpu_pp_down_delay_ms" = " 50"
+ register "gpu_pp_cycle_delay_ms" = "500"
+ register "gpu_pp_backlight_on_delay_ms" = " 1"
+ register "gpu_pp_backlight_off_delay_ms" = "200"
+
+ register "gpu_pch_backlight_pwm_hz" = "200"
+
# Enable deep Sx states
register "deep_s3_enable_ac" = "0"
register "deep_s3_enable_dc" = "0"
diff --git a/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb b/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb
index 4ac06107a0..fd301cd9b3 100644
--- a/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb
+++ b/src/mainboard/purism/librem_skl/variants/librem15v3/devicetree.cb
@@ -1,5 +1,13 @@
chip soc/intel/skylake
+ register "gpu_pp_up_delay_ms" = "200"
+ register "gpu_pp_down_delay_ms" = " 50"
+ register "gpu_pp_cycle_delay_ms" = "500"
+ register "gpu_pp_backlight_on_delay_ms" = " 1"
+ register "gpu_pp_backlight_off_delay_ms" = "200"
+
+ register "gpu_pch_backlight_pwm_hz" = "200"
+
# Enable deep Sx states
register "deep_s3_enable_ac" = "0"
register "deep_s3_enable_dc" = "0"