add usb_stop_xhci when g.

Change-Id: I35c8e28bbb6b09f461191ecc877abd3a52b5beb4
Signed-off-by: Chong Qiao <qiaochong@loongson.cn>

pmon/cmds/cmd_go.c

@@ -52,6 +52,7 @@
 #include "mod_debugger.h"
 #include "mod_usb_uhci.h"
 #include "mod_usb_ohci.h"
+#include "mod_usb_xhci.h"
 #include "initrd.h"
 
 extern struct trapframe DBGREG;
@@ -94,6 +95,9 @@ extern void usb_uhci_stop(void);
 #if NMOD_USB_OHCI !=0
 extern void usb_ohci_stop(void);
 #endif
+#if NMOD_USB_XHCI !=0
+extern void usb_ohci_stop(void);
+#endif
 /*************************************************************
  *  go(ac,av), the 'g' command
  */
@@ -183,6 +187,9 @@ extern char	*optarg;
 #if NMOD_USB_OHCI !=0
 	usb_ohci_stop();
 #endif
+#if NMOD_USB_XHCI !=0
+	usb_xhci_stop();
+#endif
 #if defined (LOONGSON_3A2H) || defined (LS7A)
 	gmac_stop();
 #endif

sys/dev/usb/xhci.c

@@ -1259,6 +1259,24 @@ static int xhci_lowlevel_stop(struct xhci_ctrl *ctrl)
 	return 0;
 }
 
+extern struct cfdata cfdata[];
+int usb_xhci_stop()
+{
+	int i, j;
+	struct xhci *xhci;
+	for(i=0;cfdata[i].cf_driver;i++)
+	{
+		if(strcmp(cfdata[i].cf_driver->cd_name,"xhci") == 0) {
+			for (j=0; j<cfdata[i].cf_unit;j++) {
+				xhci = cfdata[i].cf_driver->cd_devs[j];
+				xhci_lowlevel_stop(&xhci->xhcic);
+			}
+			break;
+		}
+	}
+	return 0;
+}
+
 int xhci_submit_control_msg(struct usb_device *udev, unsigned long pipe,
 		       void *buffer, int length, struct devrequest *setup)
 {