diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c
index 00116df51..3ac56007c 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.c
@@ -666,6 +666,8 @@ int xhci_probe ( struct xhci_host *xhci, unsigned long baseaddr ) {
 		port->protocol = xhci_port_protocol ( xhci, i );
 	}
 
+	xhci_dump(xhci);
+
     return error;
 
 err_reset:
@@ -2977,6 +2979,56 @@ void xhci_event_process(struct xhci_host *xhci) {
 }
 
 
+/* Dump host controller registers */
+void xhci_dump(struct xhci_host *xhci){
+    unsigned int offset;
+    unsigned int i;
+    unsigned int interrupter;
+
+    for ( offset = 0 ; offset < 0x20 ; offset += 0x10 ) {
+        printf("%08lx: %08lx: ", xhci->cap_addr + offset, xhci->cap + offset );
+        for ( i = 0 ; i < 0x10 ; i += 0x04 ) {
+            printf("%08x ", readl ( xhci->cap_addr + offset + i) );
+        }
+        printf("\n");
+    }
+    printf("\n");
+
+    for ( offset = 0 ; offset < 0x3c ; offset += 0x10 ) {
+        printf("%08lx: %08lx: ", xhci->op_addr + offset, xhci->op + offset );
+        for ( i = 0 ; i < 0x10 ; i += 0x04 )  {
+            printf("%08x ", readl ( xhci->op_addr + offset + i) );
+        }
+        printf("\n");
+    }
+    for ( offset = XHCI_OP_PORTSC ( 1 ) ; offset <= XHCI_OP_PORTSC ( xhci->ports ) ; offset += 0x10 ) {
+        printf("%08lx: %08lx: ", xhci->op_addr + offset, xhci->op + offset );
+        for ( i = 0 ; i < 0x10 ; i += 0x04 )  {
+            printf("%08x ", readl ( xhci->op_addr + offset + i) );
+        }
+        printf("\n");
+    }
+    printf("\n");
+
+    printf("%08lx: %08lx: ", xhci->run_addr, xhci->run);
+    printf("%08x ", readl ( xhci->run_addr) );
+    printf("\n");
+    interrupter = 1;
+    for ( offset = 0x20 ; offset < 0x20 + (32 * interrupter) ; offset += 0x10 ) {
+        printf("%08lx: %08lx: ", xhci->run_addr + offset, xhci->run + offset );
+        for ( i = 0 ; i < 0x10 ; i += 0x04 )  {
+            printf("%08x ", readl ( xhci->run_addr + offset + i) );
+        }
+        printf("\n");
+    }
+    printf("\n");
+
+    printf("%08lx: %08lx: ", xhci->db_addr, xhci->db);
+    printf("%08x ", readl ( xhci->db_addr) );
+    printf("\n");
+    printf("\n");
+}
+
 /* Dump Port status */
 void xhci_dump_port_status(uint32_t port, uint32_t portsc) {
 }