diff --git a/bsp/at91sam9260/applications/application.c b/bsp/at91sam9260/applications/application.c
index cbb1899ad0..5800ba53d2 100644
--- a/bsp/at91sam9260/applications/application.c
+++ b/bsp/at91sam9260/applications/application.c
@@ -73,9 +73,6 @@ int main(void)
 #endif
 
 #ifdef RT_USING_SDIO
-	rt_mmcsd_core_init();
-	rt_mmcsd_blk_init();
-	at91_mci_init();
 	timeout = 0;
 	while ((rt_device_find("sd0") == RT_NULL) && (timeout++ < RT_TICK_PER_SECOND*2))
 	{
diff --git a/bsp/at91sam9260/drivers/at91_mci.c b/bsp/at91sam9260/drivers/at91_mci.c
index fdfdcf459c..25d408810c 100644
--- a/bsp/at91sam9260/drivers/at91_mci.c
+++ b/bsp/at91sam9260/drivers/at91_mci.c
@@ -834,7 +834,7 @@ static void mci_gpio_init()
 #endif
 }
 
-rt_int32_t at91_mci_init(void)
+int at91_mci_init(void)
 {
 	struct rt_mmcsd_host *host;
 	struct at91_mci *mci;
@@ -903,6 +903,7 @@ err:
 	return -RT_ENOMEM;
 }
 
+INIT_DEVICE_EXPORT(at91_mci_init);
 
 #include "finsh.h"
 FINSH_FUNCTION_EXPORT(at91_mci_init, at91sam9260 sd init);
diff --git a/bsp/at91sam9260/drivers/at91_mci.h b/bsp/at91sam9260/drivers/at91_mci.h
index 2591f20c98..4e3bae9999 100644
--- a/bsp/at91sam9260/drivers/at91_mci.h
+++ b/bsp/at91sam9260/drivers/at91_mci.h
@@ -119,6 +119,6 @@
 #define AT91_MCI_IDR		0x48		/* Interrupt Disable Register */
 #define AT91_MCI_IMR		0x4c		/* Interrupt Mask Register */
 
-extern rt_int32_t at91_mci_init(void);
+extern int at91_mci_init(void);
 
 #endif