mainboard: Add ASRock H81M-HDS

Tested with GRUB 2.02 as a payload, booting Debian GNU/Linux 9.5 with
kernel 4.9.

This board works quite well under coreboot. A list of what works and
what doesn't can be found in the documentation part of this commit.

The file `data.vbt` matches the VBT in the latest stable version of the
vendor firmware (version 2.20).

Change-Id: I53483bb9fa335e86e85dfc487fef03fce4b85e2a
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/29390
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/mainboard/asrock/h81m-hds/gma-mainboard.ads b/src/mainboard/asrock/h81m-hds/gma-mainboard.ads
new file mode 100644
index 0000000000..c0260da588
--- /dev/null
+++ b/src/mainboard/asrock/h81m-hds/gma-mainboard.ads
@@ -0,0 +1,31 @@
+--
+-- This file is part of the coreboot project.
+--
+-- Copyright (C) 2018 Tristan Corrick <tristan@corrick.kiwi>
+--
+-- 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 :=
+     (HDMI1,
+      HDMI3,
+      Analog,
+      others => Disabled);
+
+end GMA.Mainboard;