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 b91cc0f36..41c1a9c1b 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
@@ -218,7 +218,8 @@ static void xhci_init ( struct xhci_host *xhci, void *regs ) {
 	xhci->db_addr = ( xhci->cap_addr + dboff );
 
     /* avoid access XHCI_REG_CAP_HCIVERSION = 0x2, unaligned memory  */
-    xhci->version = ((readl ( xhci->cap + XHCI_CAP_CAPLENGTH ) >> 16) & 0xffff);
+ //   xhci->version = ((readl ( xhci->cap + XHCI_CAP_CAPLENGTH ) >> 16) & 0xffff);
+	xhci->version = ((readl ( xhci->cap_addr + XHCI_CAP_CAPLENGTH ) >> 16) & 0xffff);
 
 	USB_LOG_DBG("XHCI %s version %x cap %08lx op %08lx run %08lx db %08lx\n",
 		xhci->name, xhci->version, ( xhci->cap ),
@@ -230,7 +231,9 @@ static void xhci_init ( struct xhci_host *xhci, void *regs ) {
     }
 
 	/* Read structural parameters 1 */
-	hcsparams1 = readl ( xhci->cap + XHCI_CAP_HCSPARAMS1 );
+//	hcsparams1 = readl ( xhci->cap + XHCI_CAP_HCSPARAMS1 );
+	hcsparams1 = readl ( xhci->cap_addr + XHCI_CAP_HCSPARAMS1 );
+
 	xhci->slots = XHCI_HCSPARAMS1_SLOTS ( hcsparams1 );
 	xhci->intrs = XHCI_HCSPARAMS1_INTRS ( hcsparams1 );
 	xhci->ports = XHCI_HCSPARAMS1_PORTS ( hcsparams1 );
@@ -238,13 +241,16 @@ static void xhci_init ( struct xhci_host *xhci, void *regs ) {
 	       xhci->name, xhci->slots, xhci->intrs, xhci->ports );
 
 	/* Read structural parameters 2 */
-	hcsparams2 = readl ( xhci->cap + XHCI_CAP_HCSPARAMS2 );
+//	hcsparams2 = readl ( xhci->cap + XHCI_CAP_HCSPARAMS2 );
+	hcsparams2 = readl ( xhci->cap_addr + XHCI_CAP_HCSPARAMS2 );
 	xhci->scratch.count = XHCI_HCSPARAMS2_SCRATCHPADS ( hcsparams2 );
 	USB_LOG_DBG("XHCI %s needs %d scratchpads\n",
 		xhci->name, xhci->scratch.count );
 
 	/* Read capability parameters 1 */
-	hccparams1 = readl ( xhci->cap + XHCI_CAP_HCCPARAMS1 );
+//	hccparams1 = readl ( xhci->cap + XHCI_CAP_HCCPARAMS1 );
+	hccparams1 = readl ( xhci->cap_addr + XHCI_CAP_HCCPARAMS1 );
+
 	xhci->addr64 = XHCI_HCCPARAMS1_ADDR64 ( hccparams1 );
 	xhci->csz_shift = XHCI_HCCPARAMS1_CSZ_SHIFT ( hccparams1 );
 	xhci->xecp = (XHCI_HCCPARAMS1_XECP ( hccparams1 ));
@@ -252,7 +258,9 @@ static void xhci_init ( struct xhci_host *xhci, void *regs ) {
 		xhci->name, (xhci->addr64 ? 64 : 32) );
 
 	/* Read page size */
-	pagesize = readl ( xhci->op + XHCI_OP_PAGESIZE );
+//	pagesize = readl ( xhci->op + XHCI_OP_PAGESIZE );
+	pagesize = readl ( xhci->op_addr + XHCI_OP_PAGESIZE );
+
 	xhci->pagesize = XHCI_PAGESIZE ( pagesize );
 	USB_ASSERT ( xhci->pagesize != 0 );
 	USB_ASSERT ( ( ( xhci->pagesize ) & ( xhci->pagesize - 1 ) ) == 0 );