diff --git a/bsp/at91sam9260/applications/application.c b/bsp/at91sam9260/applications/application.c
index fa2f06377..1fd9324cd 100644
--- a/bsp/at91sam9260/applications/application.c
+++ b/bsp/at91sam9260/applications/application.c
@@ -138,8 +138,6 @@ void rt_init_thread_entry(void* parameter)
 		/* register ethernetif device */
 		eth_system_device_init();
 		rt_hw_macb_init();
-		/* re-init device driver */
-		rt_device_init_all();
 		/* init lwip system */
 		lwip_sys_init();
 	}
diff --git a/bsp/avr32uc3b0/startup.c b/bsp/avr32uc3b0/startup.c
index 79098bd31..481ff1448 100644
--- a/bsp/avr32uc3b0/startup.c
+++ b/bsp/avr32uc3b0/startup.c
@@ -39,7 +39,6 @@ int main(void)
 #endif
 
 	rt_system_scheduler_init();
-	rt_device_init_all();
 	rt_application_init();
 
 #ifdef RT_USING_FINSH
diff --git a/bsp/bf533/startup.c b/bsp/bf533/startup.c
index a3cd60dd6..b1bf9884c 100644
--- a/bsp/bf533/startup.c
+++ b/bsp/bf533/startup.c
@@ -62,9 +62,6 @@ void rtthread_startup(void)
         RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
         &uart0);
 
-    /* init all device */
-    rt_device_init_all();
-
     rt_console_set_device("uart0");
 #endif
 
diff --git a/bsp/efm32/startup.c b/bsp/efm32/startup.c
index 3e95603be..f997c6aad 100644
--- a/bsp/efm32/startup.c
+++ b/bsp/efm32/startup.c
@@ -114,9 +114,6 @@ void rtthread_startup(void)
     /* init scheduler system */
     rt_system_scheduler_init();
 
-    /* init all devices */
-    rt_device_init_all();
-
     /* init finsh */
 #ifdef RT_USING_FINSH
     finsh_system_init();
diff --git a/bsp/lm3s8962/applications/startup.c b/bsp/lm3s8962/applications/startup.c
index a38733494..7f34aeef9 100644
--- a/bsp/lm3s8962/applications/startup.c
+++ b/bsp/lm3s8962/applications/startup.c
@@ -118,8 +118,6 @@ void rtthread_startup(void)
 	/* init sd card device */
 	rt_hw_sdcard_init();
 #endif
-	/* init all device */
-	rt_device_init_all();
 
 	/* init application */
 	rt_application_init();
diff --git a/bsp/lm3s9b9x/applications/startup.c b/bsp/lm3s9b9x/applications/startup.c
index 9f72d9c8d..c13e80da5 100644
--- a/bsp/lm3s9b9x/applications/startup.c
+++ b/bsp/lm3s9b9x/applications/startup.c
@@ -118,8 +118,6 @@ void rtthread_startup(void)
 	/* init sd card device */
 	rt_hw_sdcard_init();
 #endif
-	/* init all device */
-	rt_device_init_all();
 
 	/* init application */
 	rt_application_init();
diff --git a/bsp/lm4f232/applications/startup.c b/bsp/lm4f232/applications/startup.c
index 4572ab350..b22095f06 100644
--- a/bsp/lm4f232/applications/startup.c
+++ b/bsp/lm4f232/applications/startup.c
@@ -118,8 +118,6 @@ void rtthread_startup(void)
 	/* init sd card device */
 	rt_hw_sdcard_init();
 #endif
-	/* init all device */
-	rt_device_init_all();
 
 	/* init application */
 	rt_application_init();
diff --git a/bsp/lpc176x/applications/startup.c b/bsp/lpc176x/applications/startup.c
index f332155b1..9c0829456 100644
--- a/bsp/lpc176x/applications/startup.c
+++ b/bsp/lpc176x/applications/startup.c
@@ -16,20 +16,13 @@
 #include <rthw.h>
 #include <rtthread.h>
 
-#include "LPC17xx.h"
-#include "board.h"
-
-#ifdef RT_USING_DFS
-#include "sd.h"
-#endif
-
 /**
- * @addtogroup LPC17
+ * @addtogroup LPC176x
  */
 
 /*@{*/
-
-extern int  rt_application_init(void);
+#include <board.h>
+extern int rt_application_init(void);
 
 #ifdef __CC_ARM
 extern int Image$$RW_IRAM1$$ZI$$Limit;
@@ -84,14 +77,6 @@ void rtthread_startup(void)
 	/* initialize scheduler system */
 	rt_system_scheduler_init();
 
-#ifdef RT_USING_DEVICE
-#ifdef RT_USING_DFS
-	rt_hw_sdcard_init();
-#endif
-	/* initialize all device */
-	rt_device_init_all();
-#endif
-
 	/* initialize application */
 	rt_application_init();
 
diff --git a/bsp/lpc178x/applications/application.c b/bsp/lpc178x/applications/application.c
index c5ab98da3..e2086fb40 100644
--- a/bsp/lpc178x/applications/application.c
+++ b/bsp/lpc178x/applications/application.c
@@ -65,8 +65,6 @@ void rt_init_thread_entry(void *parameter)
 
         /* register ethernetif device */
         lpc17xx_emac_hw_init();
-        /* init all device */
-        rt_device_init_all();
 
         /* init lwip system */
         lwip_sys_init();
@@ -78,13 +76,11 @@ void rt_init_thread_entry(void *parameter)
     {
     	extern void rtgui_system_server_init(void);
 		extern void application_init(void);
-		
+
 		rt_device_t lcd;
 
 		/* init lcd */
 		rt_hw_lcd_init();
-		/* re-init device driver */
-		rt_device_init_all();
 
 		/* find lcd device */
 		lcd = rt_device_find("lcd");
diff --git a/bsp/lpc2148/applications/startup.c b/bsp/lpc2148/applications/startup.c
index b0f72afd4..5efc41fd8 100644
--- a/bsp/lpc2148/applications/startup.c
+++ b/bsp/lpc2148/applications/startup.c
@@ -100,9 +100,6 @@ void rtthread_startup(void)
 
     /* init hardware serial device */
     rt_hw_serial_init();
-
-    /*init all registed devices*/
-    rt_device_init_all();
 #endif
 
     /* init application */
diff --git a/bsp/ls1bdev/applications/application.c b/bsp/ls1bdev/applications/application.c
index d010f0f22..db345a1bb 100644
--- a/bsp/ls1bdev/applications/application.c
+++ b/bsp/ls1bdev/applications/application.c
@@ -33,14 +33,11 @@ void rt_init_thread_entry(void *parameter)
 
 		/* init Display Controller */
 		rt_hw_dc_init();
-			
-		/* re-init device driver */
-		rt_device_init_all();
-	
+
 		/* find Display Controller device */
 		dc = rt_device_find("dc");
-	
-		/* set Display Controller device as rtgui graphic driver */		
+
+		/* set Display Controller device as rtgui graphic driver */
 		rtgui_graphic_set_device(dc);
 	}
 #endif
@@ -59,7 +56,7 @@ int rt_application_init(void)
 	tid = rt_thread_create("init",
 							rt_init_thread_entry, RT_NULL,
 							4096, 8, 20);
-	if (tid != RT_NULL) 
+	if (tid != RT_NULL)
 		rt_thread_startup(tid);
 
 	return 0;
diff --git a/bsp/ls1bdev/applications/startup.c b/bsp/ls1bdev/applications/startup.c
index 36ec17e46..befa929d3 100644
--- a/bsp/ls1bdev/applications/startup.c
+++ b/bsp/ls1bdev/applications/startup.c
@@ -64,11 +64,6 @@ void rtthread_startup(void)
 	/* init scheduler system */
 	rt_system_scheduler_init();
 
-#ifdef RT_USING_DEVICE
-	/* init all device */
-	rt_device_init_all();
-#endif
-
 	/* init application */
 	rt_application_init();
 
@@ -85,7 +80,7 @@ void rtthread_startup(void)
 	rt_system_scheduler_start();
 
 	/* never reach here */
-	return;
+	return ;
 }
 
 /*@}*/
diff --git a/bsp/ls1bdev/ls1b_ram.lds b/bsp/ls1bdev/ls1b_ram.lds
index 28a6cef00..95fb2496f 100644
--- a/bsp/ls1bdev/ls1b_ram.lds
+++ b/bsp/ls1bdev/ls1b_ram.lds
@@ -50,7 +50,7 @@ SECTIONS
          . = ALIGN(4);
          __rt_init_start = .;
          KEEP(*(SORT(.rti_fn*)))
-             __rt_init_end = .;
+          __rt_init_end = .;
          . = ALIGN(4);
     }
 
diff --git a/bsp/m16c62p/applications/startup.c b/bsp/m16c62p/applications/startup.c
index 3857b6cda..a73fcd90e 100644
--- a/bsp/m16c62p/applications/startup.c
+++ b/bsp/m16c62p/applications/startup.c
@@ -68,11 +68,6 @@ void rtthread_startup(void)
 
 	/* init scheduler system */
 	rt_system_scheduler_init();
-    
-#ifdef RT_USING_DEVICE
-	/* init all device */
-	rt_device_init_all();
-#endif
 
 	/* init application */
 	rt_application_init();
diff --git a/bsp/mb9bf500r/application.c b/bsp/mb9bf500r/application.c
index fe17f240c..ff22c008b 100644
--- a/bsp/mb9bf500r/application.c
+++ b/bsp/mb9bf500r/application.c
@@ -44,10 +44,7 @@ void rt_init_thread_entry(void *parameter)
 	rt_hw_adc_init();
 	rt_hw_lcd_init();      
 	rt_hw_cpu_init();
-    
-	/* re-init device driver */
-	rt_device_init_all();
-	
+
 #ifdef RT_USING_RTGUI
 	extern void rtgui_system_server_init(void);
 
diff --git a/bsp/mb9bf506r/applications/startup.c b/bsp/mb9bf506r/applications/startup.c
index ab838c4fe..9076d572d 100644
--- a/bsp/mb9bf506r/applications/startup.c
+++ b/bsp/mb9bf506r/applications/startup.c
@@ -59,13 +59,9 @@ void rtthread_startup(void)
 	rt_system_scheduler_init();
 
 #ifdef RT_USING_DEVICE
-#ifdef RT_USING_DFS
-#ifdef RT_USING_DFS_UFFS
+#if defined(RT_USING_DFS) && defined(RT_USING_DFS_UFFS)
 	rt_hw_nand_init();
 #endif
-#endif
-	/* initialize all device */
-	rt_device_init_all();
 #endif
 
 	/* initialize application */
@@ -91,7 +87,7 @@ int main(void)
 {
 	/* disable interrupt first */
 	rt_hw_interrupt_disable();
-    
+
 	/* startup RT-Thread RTOS */
 	rtthread_startup();
 
diff --git a/bsp/microblaze/startup.c b/bsp/microblaze/startup.c
index c98098c03..fdcf5a171 100755
--- a/bsp/microblaze/startup.c
+++ b/bsp/microblaze/startup.c
@@ -86,8 +86,6 @@ void rtthread_startup(void)
 #ifdef RT_USING_DEVICE
 	/* init hardware serial device */
 	rt_hw_serial_init();
-	/* init all device */
-	rt_device_init_all();
 #endif
 
 	/* init application */
diff --git a/bsp/mini2440/application.c b/bsp/mini2440/application.c
index 4f911980a..fe2626a82 100644
--- a/bsp/mini2440/application.c
+++ b/bsp/mini2440/application.c
@@ -151,9 +151,6 @@ void rt_init_thread_entry(void *parameter)
 
 		/* init keypad */
 		rt_hw_key_init();
-		
-		/* re-init device driver */
-		rt_device_init_all();
 
 		/* find lcd device */
 		lcd = rt_device_find("lcd");
@@ -175,9 +172,6 @@ void rt_init_thread_entry(void *parameter)
 		/* register ethernetif device */
 		rt_hw_dm9000_init();
 
-		/* re-init device driver */
-		rt_device_init_all();
-
 		/* init lwip system */
 		lwip_sys_init();
 		rt_kprintf("TCP/IP initialized!\n");
@@ -197,9 +191,6 @@ void rt_init_thread_entry(void *parameter)
 		/* init keypad */
 		rt_hw_key_init();
 
-		/* re-init device driver */
-		rt_device_init_all();
-
 		/* create ftk thread */
 		ftk_thread = rt_thread_create("ftk",
 									rt_ftk_thread_entry, RT_NULL,
diff --git a/bsp/mini2440/startup.c b/bsp/mini2440/startup.c
index cf8ff261c..349d5f68f 100644
--- a/bsp/mini2440/startup.c
+++ b/bsp/mini2440/startup.c
@@ -126,9 +126,6 @@ void rtthread_startup(void)
 
 	/* rtc init */
 	rt_hw_rtc_init();
-
-	/*init all registed devices */
-	rt_device_init_all();
 #endif
 
 	/* init application */
diff --git a/bsp/mini4020/applications/startup.c b/bsp/mini4020/applications/startup.c
index 852b9dc89..bb43044a3 100644
--- a/bsp/mini4020/applications/startup.c
+++ b/bsp/mini4020/applications/startup.c
@@ -79,9 +79,6 @@ void rtthread_startup()
 	eth_system_device_init();
 	rt_hw_dm9161_init();
 #endif
-	
-	/*init all registed devices */
-	rt_device_init_all();
 #endif
 
 	/* init application */
@@ -108,10 +105,8 @@ void rtthread_startup()
 
 int main()
 {
-	rt_uint32_t UNUSED level;
-
 	/* disable interrupt first */
-	level = rt_hw_interrupt_disable();
+	rt_hw_interrupt_disable();
 
 	/* startup RT-Thread RTOS */
 	rtthread_startup();
diff --git a/bsp/sam7x/applications/startup.c b/bsp/sam7x/applications/startup.c
index 770573910..441f41385 100644
--- a/bsp/sam7x/applications/startup.c
+++ b/bsp/sam7x/applications/startup.c
@@ -116,9 +116,6 @@ void rtthread_startup(void)
 #ifdef RT_USING_DFS
 	rt_hw_sdcard_init();
 #endif
-
-	/*init all registed devices*/
-	rt_device_init_all();
 #endif
 
 	/* init application */
diff --git a/bsp/sep6200/application/startup.c b/bsp/sep6200/application/startup.c
index 6c9d390fa..1514b1114 100644
--- a/bsp/sep6200/application/startup.c
+++ b/bsp/sep6200/application/startup.c
@@ -78,20 +78,6 @@ void rtthread_startup()
 	/* init scheduler system */
 	rt_system_scheduler_init();
 
-#ifdef RT_USING_DEVICE
-
-#ifdef RT_USING_DFS
-  /* Not implemented */
-#endif
-
-#ifdef RT_USING_LWIP
-  /* Not implemented */
-#endif
-
-	/*init all registed devices */
-	rt_device_init_all();
-#endif
-
 	/* init application */
 	rt_application_init();
 
diff --git a/bsp/simulator/applications/startup.c b/bsp/simulator/applications/startup.c
index 2b21c6901..bd6502da6 100644
--- a/bsp/simulator/applications/startup.c
+++ b/bsp/simulator/applications/startup.c
@@ -58,10 +58,6 @@ void rtthread_startup(void)
     /* init scheduler system */
     rt_system_scheduler_init();
 
-    /* init all device */
-#ifdef RT_USING_DEVICE
-    rt_device_init_all();
-#endif
     /* init application */
     rt_application_init();
 
diff --git a/bsp/stm32f0x/applications/startup.c b/bsp/stm32f0x/applications/startup.c
index 52d473b8b..b3ace8038 100644
--- a/bsp/stm32f0x/applications/startup.c
+++ b/bsp/stm32f0x/applications/startup.c
@@ -86,11 +86,6 @@ void rtthread_startup(void)
 	/* init scheduler system */
 	rt_system_scheduler_init();
 
-#ifdef RT_USING_DEVICE
-	/* init all device */
-	rt_device_init_all();
-#endif
-
 	/* init application */
 	rt_application_init();
 
diff --git a/bsp/stm32f107/applications/startup.c b/bsp/stm32f107/applications/startup.c
index eae71a17e..9041d5900 100644
--- a/bsp/stm32f107/applications/startup.c
+++ b/bsp/stm32f107/applications/startup.c
@@ -81,9 +81,6 @@ void rtthread_startup(void)
     /* init scheduler system */
     rt_system_scheduler_init();
 
-    /* init all device */
-    rt_device_init_all();
-
     /* init application */
     rt_application_init();
 
diff --git a/bsp/stm32f10x/applications/application.c b/bsp/stm32f10x/applications/application.c
index d57bb4e4c..58720cf0f 100644
--- a/bsp/stm32f10x/applications/application.c
+++ b/bsp/stm32f10x/applications/application.c
@@ -122,9 +122,6 @@ void rt_init_thread_entry(void* parameter)
         /* init touch panel */
         rtgui_touch_hw_init();
 
-        /* re-init device driver */
-        rt_device_init_all();
-
         /* find lcd device */
         lcd = rt_device_find("lcd");
 
diff --git a/bsp/stm32f20x/applications/application.c b/bsp/stm32f20x/applications/application.c
index 23c2bb817..b288a26bb 100644
--- a/bsp/stm32f20x/applications/application.c
+++ b/bsp/stm32f20x/applications/application.c
@@ -66,12 +66,9 @@ void rt_init_thread_entry(void* parameter)
 
 		/* register ethernetif device */
 		eth_system_device_init();
-	
+
 		/* initialize eth interface */
 		rt_hw_stm32_eth_init();
-	
-		/* re-init device driver */
-		rt_device_init_all();
 
 		/* init lwip system */
 		lwip_sys_init();
diff --git a/bsp/stm32f20x/applications/startup.c b/bsp/stm32f20x/applications/startup.c
index dd9969168..d07e4ad5a 100644
--- a/bsp/stm32f20x/applications/startup.c
+++ b/bsp/stm32f20x/applications/startup.c
@@ -107,9 +107,6 @@ void rtthread_startup(void)
 
 	rt_hw_rtc_init();
 
-	/* init all device */
-	rt_device_init_all();
-
 	/* init application */
 	rt_application_init();
 
diff --git a/bsp/stm32f40x/applications/application.c b/bsp/stm32f40x/applications/application.c
index d4ad72f64..2a01107f6 100644
--- a/bsp/stm32f40x/applications/application.c
+++ b/bsp/stm32f40x/applications/application.c
@@ -34,8 +34,6 @@ void rt_init_thread_entry(void* parameter)
         eth_system_device_init();
 
         rt_hw_stm32_eth_init();
-        /* re-init device driver */
-        rt_device_init_all();
 
         /* init lwip system */
         lwip_sys_init();
diff --git a/bsp/stm32f40x/applications/startup.c b/bsp/stm32f40x/applications/startup.c
index d5d31fa5e..e0547efb7 100644
--- a/bsp/stm32f40x/applications/startup.c
+++ b/bsp/stm32f40x/applications/startup.c
@@ -85,9 +85,6 @@ void rtthread_startup(void)
     /* init scheduler system */
     rt_system_scheduler_init();
 
-    /* init all device */
-    rt_device_init_all();
-
     /* init application */
     rt_application_init();
 
diff --git a/bsp/upd70f3454/applications/startup.c b/bsp/upd70f3454/applications/startup.c
index f609fc7cb..1a06957b0 100644
--- a/bsp/upd70f3454/applications/startup.c
+++ b/bsp/upd70f3454/applications/startup.c
@@ -68,11 +68,6 @@ void rtthread_startup(void)
     /* init scheduler system */
     rt_system_scheduler_init();
 
-#ifdef RT_USING_DEVICE
-    /* init all device */
-    rt_device_init_all();
-#endif
-
     /* init application */
     rt_application_init();