1 files changed, 88 insertions, 0 deletions
diff --git a/src/northbridge/intel/fsp_sandybridge/gma.c b/src/northbridge/intel/fsp_sandybridge/gma.c
new file mode 100644
index 0000000000..d578d5649d
--- /dev/null
+++ b/src/northbridge/intel/fsp_sandybridge/gma.c
@@ -0,0 +1,88 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Chromium OS Authors
+ *
+ * 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 <arch/io.h>
+#include <console/console.h>
+#include <delay.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+#include "chip.h"
+#include "northbridge.h"
+
+
+/* some vga option roms are used for several chipsets but they only have one
+ * PCI ID in their header. If we encounter such an option rom, we need to do
+ * the mapping ourselfes
+ */
+
+u32 map_oprom_vendev(u32 vendev)
+{
+	u32 new_vendev=vendev;
+
+	switch (vendev) {
+	case 0x80860102:		/* GT1 Desktop */
+	case 0x8086010a:		/* GT1 Server */
+	case 0x80860112:		/* GT2 Desktop */
+	case 0x80860116:		/* GT2 Mobile */
+	case 0x80860122:		/* GT2 Desktop >=1.3GHz */
+	case 0x80860126:		/* GT2 Mobile >=1.3GHz */
+	case 0x80860166:                /* IVB */
+		new_vendev=0x80860106;	/* GT1 Mobile */
+		break;
+	}
+
+	return new_vendev;
+}
+
+static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	if (!vendor || !device) {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				pci_read_config32(dev, PCI_VENDOR_ID));
+	} else {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				((device & 0xffff) << 16) | (vendor & 0xffff));
+	}
+}
+
+static struct pci_operations gma_pci_ops = {
+	.set_subsystem    = gma_set_subsystem,
+};
+
+static struct device_operations gma_func0_ops = {
+	.read_resources		= pci_dev_read_resources,
+	.set_resources		= pci_dev_set_resources,
+	.enable_resources	= pci_dev_enable_resources,
+	.init			= pci_dev_init,
+	.scan_bus		= 0,
+	.enable			= 0,
+	.ops_pci		= &gma_pci_ops,
+};
+
+static const unsigned short gma_ids[] = {
+	0x0102, 0x0106, 0x010a, 0x0112, 0x0116, 0x0122, 0x0126, 0x166,
+	0,
+};
+static const struct pci_driver gma_gt1_desktop __pci_driver = {
+	.ops	= &gma_func0_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.devices= gma_ids,
+};