Add support for mcp55 usb and usb2.

These both compile. There is an unresolved issue w.r.t. the DEBUG 
check in usb2. How do we want this in v3?

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Index: southbridge/nvidia/mcp55/usb2.c
===================================================================
--- southbridge/nvidia/mcp55/usb2.c	(revision 0)
+++ southbridge/nvidia/mcp55/usb2.c	(revision 0)
@@ -0,0 +1,90 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2004 Tyan Computer
+ * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
+ * Copyright (C) 2006,2007 AMD
+ * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
+ *
+ * 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.
+ *
+ * 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 <types.h>
+#include <lib.h>
+#include <console.h>
+#include <device/pci.h>
+#include <msr.h>
+#include <legacy.h>
+#include <device/pci_ids.h>
+#include <statictree.h>
+#include <config.h>
+#include "mcp55.h"
+
+#warning Figure out if we want usb debug direct
+#define CONFIG_USBDEBUG_DIRECT 0
+#if CONFIG_USBDEBUG_DIRECT
+#include <usbdebug_direct.h>
+#endif
+
+// yeah right. not yet. extern struct ehci_debug_info dbg_info;
+
+static void usb2_init(struct device *dev)
+{
+	u32 dword;
+	dword = pci_read_config32(dev, 0xf8);
+	dword |= 40;
+	pci_write_config32(dev, 0xf8, dword);
+#warning mange set subsystem in mcp55 usb2
+#if 0
+	pci_write_config32(dev, 0x40,
+		((device & 0xffff) << 16) | (vendor & 0xffff));
+#endif
+}
+
+static void usb2_set_resources(struct device *dev)
+{
+#if CONFIG_USBDEBUG_DIRECT
+	struct resource *res;
+	unsigned base;
+	unsigned old_debug;
+
+	old_debug = get_ehci_debug();
+	set_ehci_debug(0);
+#endif
+	pci_dev_set_resources(dev);
+
+#if CONFIG_USBDEBUG_DIRECT
+	res = find_resource(dev, 0x10);
+	set_ehci_debug(old_debug);
+	if (!res) return;
+	base = res->base;
+	set_ehci_base(base);
+	report_resource_stored(dev, res, "");
+#endif
+
+}
+
+struct device_operations mcp55_usb2 = {
+	.id = {.type = DEVICE_ID_PCI,
+		{.pci = {.vendor = PCI_VENDOR_ID_NVIDIA,
+			      .device = PCI_DEVICE_ID_NVIDIA_MCP55_USB2}}},
+	.constructor		 = default_device_constructor,
+	.phase3_scan		 = 0,
+	.phase4_read_resources	 = pci_dev_read_resources,
+	.phase4_set_resources	 = usb2_set_resources,
+	.phase5_enable_resources = pci_dev_enable_resources,
+	.phase6_init		 = usb2_init,
+	.ops_pci		 = &pci_dev_ops_pci,
+};
Index: southbridge/nvidia/mcp55/usb.c
===================================================================
--- southbridge/nvidia/mcp55/usb.c	(revision 0)
+++ southbridge/nvidia/mcp55/usb.c	(revision 0)
@@ -0,0 +1,55 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2004 Tyan Computer
+ * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
+ * Copyright (C) 2006,2007 AMD
+ * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
+ *
+ * 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.
+ *
+ * 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 <types.h>
+#include <lib.h>
+#include <console.h>
+#include <device/pci.h>
+#include <msr.h>
+#include <legacy.h>
+#include <device/pci_ids.h>
+#include <statictree.h>
+#include <config.h>
+#include "mcp55.h"
+
+static void usb_init(struct device * dev)
+{
+#warning handle subsystem set in mcp55 usb
+#if 0
+	pci_write_config32(dev, 0x40,
+		((device & 0xffff) << 16) | (vendor & 0xffff));
+#endif
+}
+
+struct device_operations mcp55_usb = {
+	.id = {.type = DEVICE_ID_PCI,
+		{.pci = {.vendor = PCI_VENDOR_ID_NVIDIA,
+			      .device = PCI_DEVICE_ID_NVIDIA_MCP55_USB}}},
+	.constructor		 = default_device_constructor,
+	.phase3_scan		 = 0,
+	.phase4_read_resources	 = pci_dev_read_resources,
+	.phase4_set_resources	 = pci_dev_set_resources,
+	.phase5_enable_resources = pci_dev_enable_resources,
+	.phase6_init		 = usb_init,
+	.ops_pci		 = &pci_dev_ops_pci,
+};
