diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
old mode 100755
new mode 100644
diff --git a/components/drivers/sdio/gpt.c b/components/drivers/sdio/gpt.c
index d4d82ee914103246a3e223dcefec51cd40fd8a06..19bc1ad453414f68b9532b32e6dfc0b3b05bc334 100644
--- a/components/drivers/sdio/gpt.c
+++ b/components/drivers/sdio/gpt.c
@@ -433,7 +433,6 @@ static int find_valid_gpt(struct rt_mmcsd_card *card, gpt_header **gpt,
     }
 
     lastlba = last_lba(card);
-    rt_kprintf("total_sectors:%d, lastlba:%d\n", total_sectors, lastlba);
     if (!force_gpt)
     {
         /* This will be added to the EFI Spec. per Intel after v1.02. */
diff --git a/src/Kconfig b/src/Kconfig
index 90ab1840d9684dc04c1c25a8669214727714f6a8..df9d687b8e9df1d6558ae63d02f25d6318b2fcd8 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -71,7 +71,7 @@ config RT_TICK_PER_SECOND
     range 10 1000
     default 100
     help
-        System's tick frequency, Hz.
+        Tick frequency, Hz of system.
 
 config RT_USING_OVERFLOW_CHECK
     bool "Using stack overflow checking"
@@ -319,6 +319,21 @@ menu "Kernel Device Object"
         bool "Using ops for each device object"
         default n
 
+    config RT_USING_DM
+        bool "Enable device driver model with device tree"
+        default n
+        help
+            Enable device driver model with device tree (FDT). It will use more memory
+            to parse and support device tree feature.
+
+    config RT_USING_DM_FDT
+        bool "Enablie builtin libfdt"
+        depends on RT_USING_DM
+        default y
+        help
+            libfdt - Flat Device Tree manipulation. If your code already contains the
+            libfdt, you can cancel this built-in libfdt to avoid link issue.
+
     config RT_USING_INTERRUPT_INFO
         bool "Enable additional interrupt trace information"
         default n
@@ -347,8 +362,4 @@ config RT_VER_NUM
     help
         RT-Thread version number
 
-config RT_USING_DM
-    bool "Enable rt device driver model"
-    default n
- 
 endmenu