intel/gm45: new northbridge

The code supports DDR3 boards only. RAM init for DDR2 is sufficiently
different that it requires separate code, and we have no boards to
test that.

Change-Id: I9076546faf8a2033c89eb95f5eec524439ab9fe1
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1689
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/src/northbridge/intel/gm45/acpi/gm45.asl b/src/northbridge/intel/gm45/acpi/gm45.asl
new file mode 100644
index 0000000000..fac194b47a
--- /dev/null
+++ b/src/northbridge/intel/gm45/acpi/gm45.asl
@@ -0,0 +1,89 @@
+/*
+ * 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
+ */
+
+#include "hostbridge.asl"
+#include "../gm45.h"
+
+/* PCI Device Resource Consumption */
+Device (PDRC)
+{
+	Name (_HID, EISAID("PNP0C02"))
+	Name (_UID, 1)
+
+	// This does not seem to work correctly yet - set values statically for
+	// now.
+
+	//Name (PDRS, ResourceTemplate() {
+	//	Memory32Fixed(ReadWrite, 0x00000000, 0x00004000, RCRB) // RCBA
+	//	Memory32Fixed(ReadWrite, 0x00000000, 0x00004000, MCHB) // MCHBAR
+	//	Memory32Fixed(ReadWrite, 0x00000000, 0x00001000, DMIB) // DMIBAR
+	//	Memory32Fixed(ReadWrite, 0x00000000, 0x00001000, EGPB) // EPBAR
+	//	Memory32Fixed(ReadWrite, 0x00000000, 0x00000000, PCIE) // PCIE BAR
+	//	Memory32Fixed(ReadWrite, 0xfed20000, 0x00070000, ICHB) // Misc ICH
+	//})
+
+	Name (PDRS, ResourceTemplate() {
+		Memory32Fixed(ReadWrite, 0xfed1c000, 0x00004000) // RCBA
+		Memory32Fixed(ReadWrite, DEFAULT_MCHBAR,   0x00004000)
+		Memory32Fixed(ReadWrite, DEFAULT_DMIBAR,   0x00001000)
+		Memory32Fixed(ReadWrite, DEFAULT_EPBAR,    0x00001000)
+		Memory32Fixed(ReadWrite, DEFAULT_PCIEXBAR, 0x04000000)
+		Memory32Fixed(ReadWrite, 0xfed20000, 0x00020000) // Misc ICH
+		Memory32Fixed(ReadWrite, 0xfed40000, 0x00005000) // Misc ICH
+		Memory32Fixed(ReadWrite, 0xfed45000, 0x0004b000) // Misc ICH
+	})
+
+	// Current Resource Settings
+	Method (_CRS, 0, Serialized)
+	{
+		//CreateDwordField(PDRS, ^RCRB._BAS, RBR0)
+		//ShiftLeft(\_SB.PCI0.LPCB.RCBA, 14, RBR0)
+
+		//CreateDwordField(PDRS, ^MCHB._BAS, MBR0)
+		//ShiftLeft(\_SB.PCI0.MCHC.MHBR, 14, MBR0)
+
+		//CreateDwordField(PDRS, ^DMIB._BAS, DBR0)
+		//ShiftLeft(\_SB.PCI0.MCHC.DMBR, 12, DBR0)
+
+		//CreateDwordField(PDRS, ^EGPB._BAS, EBR0)
+		//ShiftLeft(\_SB.PCI0.MCHC.EPBR, 12, EBR0)
+
+		//CreateDwordField(PDRS, ^PCIE._BAS, PBR0)
+		//ShiftLeft(\_SB.PCI0.MCHC.PXBR, 26, PBR0)
+
+		//CreateDwordField(PDRS, ^PCIE._LEN, PSZ0)
+		//ShiftLeft(0x10000000, \_SB.PCI0.MCHC.PXSZ, PSZ0)
+
+		Return(PDRS)
+	}
+}
+
+// PCIe graphics port 0:1.0
+#include "peg.asl"
+
+// Integrated graphics 0:2.0
+#include "igd.asl"
+
+Scope (\)
+{
+	// backlight control, display switching, lid
+	#include "acpi/video.asl"
+}