diff --git a/bsp/fh8620/platform/fh8620/iot_cam/board.c b/bsp/fh8620/platform/fh8620/iot_cam/board.c
index f7c9ebdcb1b8093bbb0062545bcc48baca6d60e4..8e45b9be90c1ce9e9b79ea37d0d4e2c7d72396c8 100644
--- a/bsp/fh8620/platform/fh8620/iot_cam/board.c
+++ b/bsp/fh8620/platform/fh8620/iot_cam/board.c
@@ -584,10 +584,6 @@ void rt_board_driver_init(){
 
 #ifdef RT_USING_SDIO
 #ifndef RT_USING_WIFI_MARVEL
-    rt_mmcsd_core_init();
-	rt_kprintf("MMC CORE initialized!\n");
-    rt_mmcsd_blk_init();
-	rt_kprintf("MMC BLK initialized!\n");
     rt_hw_mmc_init();
 	rt_kprintf("MMC initialized!\n");
     rt_thread_delay(RT_TICK_PER_SECOND*2);
diff --git a/bsp/x1000/applications/mnt.c b/bsp/x1000/applications/mnt.c
index 4e09a6e2a02e0d48407975928c432ca993827e8b..df6be29b40d367dc6640a1e5e96d83db1aa0536f 100644
--- a/bsp/x1000/applications/mnt.c
+++ b/bsp/x1000/applications/mnt.c
@@ -30,9 +30,6 @@
 int mnt_init(void)
 {
 #ifdef RT_USING_SDIO
-    rt_mmcsd_core_init();
-    rt_mmcsd_blk_init();
-
     jz47xx_sdio_init();
     rt_thread_delay(RT_TICK_PER_SECOND * 1);