igd.asl rewrite

Old igd.asl had inconsistent addresses (between _DOD and actual device)
and ghost devices. Any of those is enough to make brightness on windows
fail and make igd.asl out-of-ACPI-spec. Also old code favoured ridiculous
copying of the same thing 6 times per chipset. Leave only hooking up and
chipset-specific part in chipset directory. Move NVS handling and ACPI-spec
parts to a common file.

Change-Id: I556769e5e28b83e7465e3db689e26c8c0ab44757
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7472
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>

4 files changed, 3 insertions, 56 deletions

diff --git a/src/mainboard/gigabyte/ga-b75m-d3v/acpi/mainboard.asl b/src/mainboard/gigabyte/ga-b75m-d3v/acpi/mainboard.asl
deleted file mode 100644
index 507dd7d8af..0000000000
--- a/src/mainboard/gigabyte/ga-b75m-d3v/acpi/mainboard.asl
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2015 Damien Zammit <damien@zamaudio.com>
- *
- * 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; version 2 of
- * the License.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc.
- */
-
-Method (BRTN, 1, Serialized)
-{
-	If (LEqual (And (DID1, 0x0F00), 0x0400))
-	{
-		Notify (\_SB.PCI0.GFX0.DD01, Arg0)
-	}
-
-	If (LEqual (And (DID2, 0x0F00), 0x0400))
-	{
-		Notify (\_SB.PCI0.GFX0.DD02, Arg0)
-	}
-
-	If (LEqual (And (DID3, 0x0F00), 0x0400))
-	{
-		Notify (\_SB.PCI0.GFX0.DD03, Arg0)
-	}
-
-	If (LEqual (And (DID4, 0x0F00), 0x0400))
-	{
-		Notify (\_SB.PCI0.GFX0.DD04, Arg0)
-	}
-
-	If (LEqual (And (DID5, 0x0F00), 0x0400))
-	{
-		Notify (\_SB.PCI0.GFX0.DD05, Arg0)
-	}
-}
diff --git a/src/mainboard/gigabyte/ga-b75m-d3v/acpi_tables.c b/src/mainboard/gigabyte/ga-b75m-d3v/acpi_tables.c
index 23a8a00ffa..70eeeb2bdc 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3v/acpi_tables.c
+++ b/src/mainboard/gigabyte/ga-b75m-d3v/acpi_tables.c
@@ -56,14 +56,6 @@ void acpi_create_gnvs(global_nvs_t *gnvs)
 	gnvs->s5u0 = 0;
 	gnvs->s5u1 = 0;
 
-	/* IGD Displays */
-	gnvs->ndid = 3;
-	gnvs->did[0] = 0x80000100;
-	gnvs->did[1] = 0x80000240;
-	gnvs->did[2] = 0x80000410;
-	gnvs->did[3] = 0x80000410;
-	gnvs->did[4] = 0x00000005;
-
 	// the lid is open by default.
 	gnvs->lids = 1;
 
diff --git a/src/mainboard/gigabyte/ga-b75m-d3v/devicetree.cb b/src/mainboard/gigabyte/ga-b75m-d3v/devicetree.cb
index 1c08359cb3..369bc6f9da 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3v/devicetree.cb
+++ b/src/mainboard/gigabyte/ga-b75m-d3v/devicetree.cb
@@ -1,4 +1,7 @@
 chip northbridge/intel/sandybridge
+	register "gfx.ndid" = "3"
+	register "gfx.did" = "{ 0x80000100, 0x80000240, 0x80000410, 0x80000410, 0x00000005 }"
+
 	device cpu_cluster 0 on
 		chip cpu/intel/socket_LGA1155
 			device lapic 0 on end
diff --git a/src/mainboard/gigabyte/ga-b75m-d3v/dsdt.asl b/src/mainboard/gigabyte/ga-b75m-d3v/dsdt.asl
index fcc6f8fa30..e79d611e7a 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3v/dsdt.asl
+++ b/src/mainboard/gigabyte/ga-b75m-d3v/dsdt.asl
@@ -11,7 +11,6 @@ DefinitionBlock(
 
 	// Some generic macros
 	#include "acpi/platform.asl"
-	#include "acpi/mainboard.asl"
 	#include <cpu/intel/model_206ax/acpi/cpu.asl>
 	/* global NVS and variables.  */
 	#include <southbridge/intel/bd82x6x/acpi/globalnvs.asl>