添加 w25 mtd设备驱动

components/drivers/spi/SConscript

@@ -11,7 +11,10 @@ if GetDepend('RT_USING_SPI_WIFI'):
 
 if GetDepend('RT_USING_W25QXX'):
     src_device += ['spi_flash_w25qxx.c']
-
+    
+if GetDepend('RT_USING_W25QXX_MTD'):
+    src_device += ['spi_flash_w25qxx_mtd.c']    
+    
 if GetDepend('RT_USING_ENC28J60'):
     src_device += ['enc28j60.c']
 

components/drivers/spi/spi_flash.h

@@ -36,4 +36,14 @@ struct spi_flash_device
 
 typedef struct spi_flash_device *rt_spi_flash_device_t;
 
+#ifdef RT_USING_MTD_NOR
+struct spi_flash_mtd
+{
+    struct rt_mtd_nor_device 			mtd_device;
+    struct rt_spi_device *     			rt_spi_device;
+    struct rt_mutex            			lock;
+    void *                     			user_data;
+};
+#endif
+
 #endif

components/drivers/spi/spi_flash_w25qxx_mtd.h

@@ -0,0 +1,34 @@
+/*
+ * File      : spi_flash_w25qxx.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2011, 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
+ * 2011-12-16     aozima      the first version
+ * 2012-08-23     aozima       add flash lock.
+ * 2017-02-11     urey				add mtd fucntion
+ */
+
+#ifndef SPI_FLASH_W25QXX_H_INCLUDED
+#define SPI_FLASH_W25QXX_H_INCLUDED
+
+#include <rtthread.h>
+
+extern rt_err_t w25qxx_mtd_init(const char *mtd_name,const char * spi_device_name);
+
+#endif // SPI_FLASH_W25QXX_H_INCLUDED