diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c
index 73b49f7a7..e733ee7ab 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/dwc3/dwc3.c
@@ -97,7 +97,9 @@ void dwc3_core_exit(struct dwc3 *dwc){
 
 
 int dwc3_alloc_scratch_buffers(struct dwc3 *dwc){
-    uint32_t length;
+    uint32_t len;
+    uintptr_t phy_addr, vir_addr;
+    int ret;
 
     if (!dwc->has_hibernation)
         return 0;
@@ -105,15 +107,52 @@ int dwc3_alloc_scratch_buffers(struct dwc3 *dwc){
     if (!dwc->nr_scratch)
         return 0;
 
+    len = dwc->nr_scratch * DWC3_SCRATCHBUF_SIZE;
+    ret = naive_mmap(&vir_addr, &phy_addr, len, true);
     
+    if(ret != 0){
+        USB_LOG_ERR("could not allocate DWC3 scratch buffers!\n");
+        ret = -ENOMEM;
+    }
 
-    return 0;
+    dwc->scratchbuf = (void *)vir_addr;
+    dwc->scratch_addr = phy_addr;
+
+    return ret;
 }
 
 
 
 int dwc3_setup_scratch_buffers(struct dwc3 *dwc){
-    return 0;
+    uint32_t param;
+    int ret;
+
+    if (!dwc->has_hibernation)
+        return 0;
+
+    if (!dwc->nr_scratch)
+        return 0;
+
+    param = lower_32_bits(dwc->scratch_addr);
+
+    ret = dwc3_send_gadget_generic_command(dwc,
+            DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO, param);
+
+    if(ret != 0)
+        goto err_cmd;
+
+    param = upper_32_bits(dwc->scratch_addr);
+
+    ret = dwc3_send_gadget_generic_command(dwc,
+            DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI, param);
+
+    if(ret != 0)
+        goto err_cmd;
+
+    return ret;
+
+err_cmd:
+    return ret;
 }