diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/Makefile b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/Makefile
index 90d754261..6ab31a006 100644
--- a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/Makefile
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/Makefile
@@ -70,8 +70,12 @@ ifeq ($(CONFIG_USBHOST),y)
 CSRCS += imxrt_usbhost.c
 endif
 
+ifeq ($(CONFIG_IMXRT_USDHC),y)
+CSRCS += imxrt_mmcsd.c
+endif
+
 ifeq ($(CONFIG_XIDATONG_SDIO_AUTOMOUNT),y)
-CSRCS += imxrt_sdhc_automount.c
+CSRCS += imxrt_mmcsd_automount.c
 endif
 
 include $(TOPDIR)/boards/Board.mk
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_bringup.c b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_bringup.c
index 5ada5b0ce..2aab9d081 100644
--- a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_bringup.c
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_bringup.c
@@ -43,10 +43,6 @@
 #include <imxrt_lpi2c.h>
 #include <imxrt_lpspi.h>
 
-#ifdef CONFIG_IMXRT_USDHC
-#  include "imxrt_usdhc.h"
-#endif
-
 #ifdef CONFIG_USBMONITOR
 #  include <nuttx/usb/usbmonitor.h>
 #endif
@@ -94,45 +90,6 @@ static void imxrt_i2c_register(int bus)
 }
 #endif
 
-#ifdef CONFIG_IMXRT_USDHC
-static int nsh_sdmmc_initialize(void)
-{
-  struct sdio_dev_s *sdmmc;
-  int ret = 0;
-
-  /* Get an instance of the SDIO interface */
-
-  sdmmc = imxrt_usdhc_initialize(0);
-  if (!sdmmc)
-    {
-      syslog(LOG_ERR, "ERROR: Failed to initialize SD/MMC\n");
-    }
-  else
-    {
-      /* Bind the SDIO interface to the MMC/SD driver */
-
-      ret = mmcsd_slotinitialize(0, sdmmc);
-      if (ret != OK)
-        {
-          syslog(LOG_ERR,
-                 "ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n",
-                 ret);
-        }
-
-#ifdef CONFIG_XIDATONG_SDIO_AUTOMOUNT
-      imxrt_automount_initialize();
-      imxrt_usdhc_set_sdio_card_isr(sdmmc, imxrt_sdhc_automount_event, NULL);
-#else
-      imxrt_usdhc_set_sdio_card_isr(sdmmc, NULL, NULL);
-#endif
-    }
-
-  return OK;
-}
-#else
-#  define nsh_sdmmc_initialize() (OK)
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_mmcsd.c b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_mmcsd.c
new file mode 100644
index 000000000..dad38e4f2
--- /dev/null
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_mmcsd.c
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2020 AIIT XUOS Lab
+* XiOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*        http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+
+/**
+ * @file imxrt_sdhc_automount.c
+ * @brief imxrt board sd card automount
+ * @version 1.0
+ * @author AIIT XUOS Lab
+ * @date 2022.04.12
+ */
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+#include <debug.h>
+
+#include "xidatong.h"
+
+#ifdef CONFIG_IMXRT_USDHC
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/* This structure holds static information unique to one SDHC peripheral */
+
+struct imxrt_sdhc_state_s
+{
+  struct sdio_dev_s *sdhc;    /* R/W device handle */
+  bool inserted;              /* true: card is inserted */
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* device state */
+
+static struct imxrt_sdhc_state_s g_sdhc;
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_sdmmc_initialize
+ *
+ * Description:
+ *   Initialize the SDHC SD card slot
+ *
+ ****************************************************************************/
+
+int nsh_sdmmc_initialize(void)
+{
+  int ret = 0;
+
+  /* Get an instance of the SDIO interface */
+
+  g_sdhc.sdhc = imxrt_usdhc_initialize(0);
+  if (!g_sdhc.sdhc)
+    {
+      syslog(LOG_ERR, "ERROR: Failed to initialize SD/MMC\n");
+      return -ENODEV; 
+    }
+
+  /* Bind the SDIO interface to the MMC/SD driver */
+
+  ret = mmcsd_slotinitialize(0, g_sdhc.sdhc);
+  if (ret != OK)
+    {
+      syslog(LOG_ERR, "ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
+      return ret;
+    }
+
+#ifdef CONFIG_XIDATONG_SDIO_AUTOMOUNT
+      imxrt_automount_initialize();
+      imxrt_usdhc_set_sdio_card_isr(g_sdhc.sdhc, imxrt_sdhc_automount_event, NULL);
+#else
+      imxrt_usdhc_set_sdio_card_isr(g_sdhc.sdhc, NULL, NULL);
+#endif
+
+  return OK;
+}
+#endif
\ No newline at end of file
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_sdhc_automount.c b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_mmcsd_automount.c
similarity index 100%
rename from Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_sdhc_automount.c
rename to Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_mmcsd_automount.c
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/xidatong.h b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/xidatong.h
index b01903cb5..0f92e68cb 100644
--- a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/xidatong.h
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/xidatong.h
@@ -208,6 +208,12 @@ int imxrt_usbhost_initialize(void);
 int imxrt_mmcsd_initialize(void);
 #endif
 
+#ifdef CONFIG_IMXRT_USDHC
+int nsh_sdmmc_initialize(void);
+#else
+#  define nsh_sdmmc_initialize() (OK)
+#endif
+
 #ifdef CONFIG_XIDATONG_SDIO_AUTOMOUNT
 int imxrt_sdhc_automount_event(void *arg);
 void imxrt_automount_initialize(void);