Support for nehalem northbridge

Including raminit

Change-Id: If1dd3855181481b8b928adf0fdb40b29d15897db
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4044
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

1 files changed, 341 insertions, 0 deletions

diff --git a/src/northbridge/intel/nehalem/acpi/igd.asl b/src/northbridge/intel/nehalem/acpi/igd.asl
new file mode 100644
index 0000000..7d3d4db
--- /dev/null
+++ b/src/northbridge/intel/nehalem/acpi/igd.asl
@@ -0,0 +1,341 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+Device (GFX0)
+{
+	Name (_ADR, 0x00020000)
+
+	OperationRegion (GFXC, PCI_Config, 0x00, 0x0100)
+        Field (GFXC, DWordAcc, NoLock, Preserve)
+        {
+           Offset (0x10),
+	   BAR0, 64
+        }
+
+        OperationRegion (GFRG, SystemMemory, And (BAR0, 0xfffffffffffffff0), 0x400000)
+	Field (GFRG, DWordAcc, NoLock, Preserve)
+        {
+	   Offset (0x48254),
+			BCLV, 16,
+           Offset (0xc8250),
+	                CR1, 32,
+			CR2, 32
+        }
+
+	/* Display Output Switching */
+	Method (_DOS, 1)
+	{
+		/* Windows 2000 and Windows XP call _DOS to enable/disable
+		 * Display Output Switching during init and while a switch
+		 * is already active
+		 */
+		Store (And(Arg0, 7), DSEN)
+	}
+
+	/* We try to support as many i945 systems as possible,
+	 * so keep the number of DIDs flexible.
+	 */
+	Method (_DOD, 0)
+	{
+		If (LEqual(NDID, 1)) {
+			Name(DOD1, Package() {
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID1), Index(DOD1, 0))
+			Return(DOD1)
+		}
+
+		If (LEqual(NDID, 2)) {
+			Name(DOD2, Package() {
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID2), Index(DOD2, 0))
+			Store (Or(0x00010000, DID2), Index(DOD2, 1))
+			Return(DOD2)
+		}
+
+		If (LEqual(NDID, 3)) {
+			Name(DOD3, Package() {
+				0xffffffff,
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID3), Index(DOD3, 0))
+			Store (Or(0x00010000, DID3), Index(DOD3, 1))
+			Store (Or(0x00010000, DID3), Index(DOD3, 2))
+			Return(DOD3)
+		}
+
+		If (LEqual(NDID, 4)) {
+			Name(DOD4, Package() {
+				0xffffffff,
+				0xffffffff,
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID4), Index(DOD4, 0))
+			Store (Or(0x00010000, DID4), Index(DOD4, 1))
+			Store (Or(0x00010000, DID4), Index(DOD4, 2))
+			Store (Or(0x00010000, DID4), Index(DOD4, 3))
+			Return(DOD4)
+		}
+
+		If (LGreater(NDID, 4)) {
+			Name(DOD5, Package() {
+				0xffffffff,
+				0xffffffff,
+				0xffffffff,
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID5), Index(DOD5, 0))
+			Store (Or(0x00010000, DID5), Index(DOD5, 1))
+			Store (Or(0x00010000, DID5), Index(DOD5, 2))
+			Store (Or(0x00010000, DID5), Index(DOD5, 3))
+			Store (Or(0x00010000, DID5), Index(DOD5, 4))
+			Return(DOD5)
+		}
+
+		/* Some error happened, but we have to return something */
+		Return (Package() {0x00000400})
+	}
+
+	Device(DD01)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID1, 0)) {
+				Return (1)
+			} Else {
+				Return (And(0xffff, DID1))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 1)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 1)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+	Device(DD02)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID2, 0)) {
+				Return (2)
+			} Else {
+				Return (And(0xffff, DID2))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 2)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 2)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+
+	Device(DD03)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID3, 0)) {
+				Return (3)
+			} Else {
+				Return (And(0xffff, DID3))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 4)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 4)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+
+	Device(DD04)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID4, 0)) {
+				Return (4)
+			} Else {
+				Return (And(0xffff, DID4))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 8)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 4)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+
+	Device(DD05)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID5, 0)) {
+				Return (5)
+			} Else {
+				Return (And(0xffff, DID5))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 16)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 4)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+}
+