USB: Add EHCI support for VCT EHCI controller (really with driver now)

Somehow I missed the real driver part in my last patch version. This patch
now adds the driver.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Remy Bohmer <linux@bohmer.net>

drivers/usb/usb_ehci_vct.c

@@ -0,0 +1,58 @@
+/*
+ * (C) Copyright 2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <usb.h>
+
+#include "usb_ehci.h"
+#include "usb_ehci_core.h"
+
+int vct_ehci_hcd_init(u32 *hccr, u32 *hcor);
+
+/*
+ * Create the appropriate control structures to manage
+ * a new EHCI host controller.
+ */
+int ehci_hcd_init(void)
+{
+	int ret;
+	u32 vct_hccr;
+	u32 vct_hcor;
+
+	/*
+	 * Init VCT specific stuff
+	 */
+	ret = vct_ehci_hcd_init(&vct_hccr, &vct_hcor);
+	if (ret)
+		return ret;
+
+	hccr = (struct ehci_hccr *)vct_hccr;
+	hcor = (struct ehci_hcor *)vct_hcor;
+
+	return 0;
+}
+
+/*
+ * Destroy the appropriate control structures corresponding
+ * the the EHCI host controller.
+ */
+int ehci_hcd_stop(void)
+{
+	return 0;
+}