--- /dev/null
+
+#ifndef __Y_NORSIM_H__
+#define __Y_NORSIM_H__
+
+#include "yaffs_guts.h"
+
+void ynorsim_Read32(__u32 *addr, __u32 *data, int nwords);
+void ynorsim_Write32(__u32 *addr, __u32 *data, int nwords);
+void ynorsim_EraseBlock(__u32 *addr);
+void ynorsim_Shutdown(void);
+void ynorsim_Initialise(void);
+__u32 * ynorsim_GetBase(void);
+
+#endif