fdt_support: add partitions fixup in mtd node

Allow overwriting defined partitions in the device tree blob
using partition info defined in the 'mtdparts' environment
variable.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>

include/fdt_support.h

@@ -81,5 +81,7 @@ int fdt_resize(void *blob);
 
 int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size);
 
+void fdt_fixup_mtdparts(void *fdt, void *node_info, int node_info_size);
+
 #endif /* ifdef CONFIG_OF_LIBFDT */
 #endif /* ifndef __FDT_SUPPORT_H */

include/jffs2/load_kernel.h

@@ -78,5 +78,6 @@ struct mtdids {
 extern int mtdparts_init(void);
 extern int find_dev_and_part(const char *id, struct mtd_device **dev,
 				u8 *part_num, struct part_info **part);
+extern struct mtd_device *device_find(u8 type, u8 num);
 
 #endif /* load_kernel_h */

include/mtd_node.h

@@ -0,0 +1,11 @@
+#ifndef _NODE_INFO
+#define _NODE_INFO
+
+/*
+ * Info we use to search for a flash node in DTB.
+ */
+struct node_info {
+	const char *compat;	/* compatible string */
+	int type;		/* mtd flash type */
+};
+#endif