google/fizz: add libgfxinit support

Change-Id: Idd7bfa4a97770f525c3f25f04f90c4bf092e4ae1
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37206
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/google/fizz/Kconfig

@@ -17,6 +17,7 @@ config BOARD_GOOGLE_BASEBOARD_FIZZ
 	select INTEL_GMA_HAVE_VBT
 	select INTEL_LPSS_UART_FOR_CONSOLE
 	select MAINBOARD_HAS_CHROMEOS
+	select MAINBOARD_HAS_LIBGFXINIT
 	select NO_FADT_8042
 	select SOC_INTEL_KABYLAKE
 	select MAINBOARD_HAS_SPI_TPM_CR50

src/mainboard/google/fizz/Makefile.inc

@@ -24,6 +24,8 @@ ramstage-$(CONFIG_CHROMEOS) += chromeos.c
 ramstage-$(CONFIG_EC_GOOGLE_CHROMEEC) += ec.c
 ramstage-y += mainboard.c
 
+ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
+
 smm-y += smihandler.c
 
 subdirs-y += variants/baseboard

src/mainboard/google/fizz/gma-mainboard.ads

@@ -0,0 +1,30 @@
+--
+-- 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 :=
+     (DP1,
+      DP2,
+      HDMI1,
+      HDMI2,
+      others => Disabled);
+
+end GMA.Mainboard;