diff --git a/components/drivers/include/drivers/mtd.h b/components/drivers/include/drivers/mtd.h
index 64c24bca3a..9cc7c470d2 100644
--- a/components/drivers/include/drivers/mtd.h
+++ b/components/drivers/include/drivers/mtd.h
@@ -1,25 +1,16 @@
 /*
- * File      : mtd.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, Shanghai Real-Thread Technology Co., Ltd
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File       : mtd.h
  *
  * Change Logs:
- * Date           Author       Notes
- * 2018-7-5     heyuanjie      the first version
+ * Date           Author        Notes
+   2018-09-10     heyuanjie87   first version
+
  */
 
 #ifndef __MTD_H__
diff --git a/components/drivers/include/drivers/mtdnand.h b/components/drivers/include/drivers/mtdnand.h
index 5371cd1fb3..c767e4ac9c 100644
--- a/components/drivers/include/drivers/mtdnand.h
+++ b/components/drivers/include/drivers/mtdnand.h
@@ -1,29 +1,16 @@
 /*
- * File      : nand.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Change Logs:
- * Date           Author       Notes
- * 2018-7-8       heyuanjie    the first version
+ * SPDX-License-Identifier: Apache-2.0
  */
 
 /*
- * COPYRIGHT (C) 2012, Shanghai Real Thread
+ * File       : mtdnand.h
+ *
+ * Change Logs:
+ * Date           Author        Notes
+   2018-09-10     heyuanjie87   first version
+
  */
 
 #ifndef _MTDNAND_H_
@@ -113,6 +100,6 @@ struct nand_ops
     int(*markbad)(rt_nand_t *nand, uint32_t blk); /* if NULL OOB[0] used as bad mark(set to 0x00) */
 };
 
-int rt_mtd_nand_init(rt_nand_t *nand, int blk_size, int page_size, int blks_pc, int oob_size);
+int rt_mtd_nand_init(rt_nand_t *nand, int blk_size, int page_size, int oob_size);
 
 #endif /* MTD_NAND_H_ */
diff --git a/components/drivers/include/drivers/mtdnor.h b/components/drivers/include/drivers/mtdnor.h
index de57c2d2d5..709efe29a4 100644
--- a/components/drivers/include/drivers/mtdnor.h
+++ b/components/drivers/include/drivers/mtdnor.h
@@ -1,25 +1,16 @@
 /*
- * File      : mtdnor.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, Shanghai Real-Thread Technology Co., Ltd
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File       : mtdnor.h
  *
  * Change Logs:
- * Date           Author       Notes
- * 2018-8-30     heyuanjie      the first version
+ * Date           Author        Notes
+   2018-09-10     heyuanjie87   first version
+
  */
 
 #ifndef __MTDNOR_H__
diff --git a/components/drivers/mtd/mtdnand.c b/components/drivers/mtd/mtdnand.c
index 48d1870af1..c209ea3279 100644
--- a/components/drivers/mtd/mtdnand.c
+++ b/components/drivers/mtd/mtdnand.c
@@ -601,7 +601,7 @@ static const struct mtd_ops _ops =
     nand_block_markbad,
 };
 
-int rt_mtd_nand_init(rt_nand_t *nand, int blk_size, int page_size, int blks_pc, int oob_size)
+int rt_mtd_nand_init(rt_nand_t *nand, int blk_size, int page_size, int oob_size)
 {
     uint8_t *buf;
 
@@ -616,7 +616,6 @@ int rt_mtd_nand_init(rt_nand_t *nand, int blk_size, int page_size, int blks_pc,
     nand->buffers.ecccode = buf;
     nand->pagebuf = 0; /* alloc when unaligen access */
 
-    nand->size = blk_size * blks_pc;
     nand->pages_pb = blk_size / page_size;
     nand->ecc._step = page_size / nand->ecc.stepsize;
     nand->page_size = page_size;