new file mode 100644
--- /dev/null
+++ b/direct/yaffs_norif1.c
@@ -0,0 +1,306 @@
+/*
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2007 Aleph One Ltd.
+ *   for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Charles Manning <charles@aleph1.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * This is an interface module for handling NOR in yaffs1 mode.
+ */
+
+/* First set up for M18 with 1k chunks and 16-byte spares.
+ *
+ * NB We're using the oddball M18 modes of operation here 
+ * The chip is 64MB based at 0x0000, but YAFFS only going to use the top half
+ * ie. YAFFS will be from 32MB to 64MB.
+ *
+ * The M18 has two ways of writing data. Every Programming Region (1kbytes) 
+ * can be programmed in two modes:
+ * * Object Mode 1024 bytes of write once data.
+ * * Control Mode: 512bytes of bit-writeable data. 
+ *    This is arranged as 32 * (16 bytes of bit-writable followed by 16 bytes of "dont touch")
+ * 
+ * The block size is 256kB, making 128 blocks in the 32MB YAFFS area.
+ * Each block comprises:
+ *   Offset   0k: 248 x 1k data pages
+ *   Offset 248k: 248 x 32-byte spare areas implemented as 16 bytes of spare followed by 16 bytes untouched)
+ *   Offset 248k + (248 * 32): Format marker
+ *   
+ */
+
+const char *yaffs_norif1_c_version = "$Id: yaffs_norif1.c,v 1.1 2008-11-07 00:34:47 charles Exp $";
+
+#include "yaffs_norif1.h"
+
+#include "yportenv.h"
+
+#include "yaffs_flashif.h"
+#include "yaffs_guts.h"
+
+#include "devextras.h"
+
+#define SPARE_BYTES_PER_CHUNK	16
+#define M18_SKIP		16
+#define PROG_REGION_SIZE	1024
+#define BLOCK_SIZE_IN_BYTES 	(256*1024)
+#define CHUNKS_PER_BLOCK	248
+#define SPARE_AREA_OFFSET	(CHUNKS_PER_BLOCK * PROG_REGION_SIZE)
+
+#define FORMAT_OFFSET		(SPARE_AREA_OFFSET + CHUNKS_PER_BLOCK * (SPARE_BYTES_PER_CHUNK + M18_SKIP))
+
+#define FORMAT_VALUE		0x1234
+
+#define DATA_BYTES_PER_CHUNK	1024
+#define BLOCKS_IN_DEVICE        (32*1024/256)
+
+
+#define YNOR_PREMARKER          (0xF6)
+#define YNOR_POSTMARKER         (0xF0)
+
+
+#if 1
+
+/* Compile this for a simulation */
+#include "ynorsim.h"
+#define ynorif1_FlashInit() ynorsim_Initialise()
+#define ynorif1_FlashDeinit() ynorsim_Shutdown()
+#define ynorif1_FlashWrite32(addr,buf,nwords) ynorsim_Write32(addr,buf,nwords) 
+#define ynorif1_FlashRead32(addr,buf,nwords) ynorsim_Read32(addr,buf,nwords) 
+#define ynorif1_FlashEraseBlock(addr) ynorsim_EraseBlock(addr)
+#define DEVICE_BASE     ynorsim_GetBase()
+#else
+
+/* Compile this for running on blob, hacked for yaffs access */
+#include "../blob/yflashrw.h"
+#define ynorif1_FlashInit()  do{} while(0)
+#define ynorif1_FlashDeinit() do {} while(0)
+#define ynorif1_FlashWrite32(addr,buf,nwords) Y_FlashWrite(addr,buf,nwords) 
+#define ynorif1_FlashRead32(addr,buf,nwords)  Y_FlashRead(addr,buf,nwords) 
+#define ynorif1_FlashEraseBlock(addr)         Y_FlashErase(addr,BLOCK_SIZE_IN_BYTES)
+#define DEVICE_BASE     (32 * 1024 * 1024)
+#endif
+
+__u32 *Block2Addr(yaffs_Device *dev, int blockNumber)
+{
+	__u32 addr;
+	
+	addr = (__u32) DEVICE_BASE;
+	addr += blockNumber * BLOCK_SIZE_IN_BYTES;
+	
+	return (__u32 *) addr;
+}
+
+__u32 *Block2FormatAddr(yaffs_Device *dev,int blockNumber)
+{
+	__u32 addr;
+	
+	addr = (__u32) Block2Addr(dev,blockNumber);
+	addr += FORMAT_OFFSET;
+	
+	return (__u32 *)addr;
+}
+__u32 *Chunk2DataAddr(yaffs_Device *dev,int chunkId)
+{
+	unsigned block;
+	unsigned chunkInBlock;
+	__u32  addr;
+	
+	block = chunkId/dev->nChunksPerBlock;
+	chunkInBlock = chunkId % dev->nChunksPerBlock;
+	
+	addr = (__u32) Block2Addr(dev,block);
+	addr += chunkInBlock * DATA_BYTES_PER_CHUNK;
+	
+	return (__u32 *)addr;
+}
+
+__u32 *Chunk2SpareAddr(yaffs_Device *dev,int chunkId)
+{
+	unsigned block;
+	unsigned chunkInBlock;
+	__u32 addr;
+	
+	block = chunkId/dev->nChunksPerBlock;
+	chunkInBlock = chunkId % dev->nChunksPerBlock;
+	
+	addr = (__u32) Block2Addr(dev,block);
+	addr += SPARE_AREA_OFFSET;
+	addr += chunkInBlock * (SPARE_BYTES_PER_CHUNK + M18_SKIP);
+	return (__u32 *)addr;
+}
+
+
+void ynorif1_AndBytes(__u8*target, const __u8   *src, int nbytes)
+{
+        while(nbytes > 0){
+                *target &= *src;
+                target++;
+                src++;
+                nbytes--;
+        }
+}
+
+int ynorif1_WriteChunkToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, const yaffs_Spare *spare)
+{
+        __u32 *dataAddr = Chunk2DataAddr(dev,chunkInNAND);
+        __u32 *spareAddr = Chunk2SpareAddr(dev,chunkInNAND);
+        
+        yaffs_Spare tmpSpare;
+        
+        /* We should only be getting called for one of 3 reasons:
+         * Writing a chunk: data and spare will not be NULL
+         * Writing a deletion marker: data will be NULL, spare not NULL
+         * Writing a bad block marker: data will be NULL, spare not NULL
+         */
+         
+        if(sizeof(yaffs_Spare) != 16)
+                YBUG();
+        
+        if(data && spare)
+        {
+                if(spare->pageStatus != 0xff)
+                        YBUG();
+                /* Write a pre-marker */
+                memset(&tmpSpare,0xff,sizeof(tmpSpare));
+                tmpSpare.pageStatus = YNOR_PREMARKER;
+                ynorif1_FlashWrite32(spareAddr,(__u32 *)&tmpSpare,sizeof(yaffs_Spare)/4);
+
+                /* Write the data */            
+                ynorif1_FlashWrite32(dataAddr,(__u32 *)data,dev->totalBytesPerChunk / 4);
+                
+                
+                memcpy(&tmpSpare,spare,sizeof(yaffs_Spare));
+                
+                /* Write the real tags, but override the premarker*/
+                tmpSpare.pageStatus = YNOR_PREMARKER;
+                ynorif1_FlashWrite32(spareAddr,(__u32 *)&tmpSpare,sizeof(yaffs_Spare)/4);
+                
+                /* Write a post-marker */
+                tmpSpare.pageStatus = YNOR_POSTMARKER;
+                ynorif1_FlashWrite32(spareAddr,(__u32 *)&tmpSpare,sizeof(tmpSpare)/4);  
+
+        } else if(spare){
+                /* This has to be a read-modify-write operation to handle NOR-ness */
+
+                ynorif1_FlashRead32(spareAddr,(__u32 *)&tmpSpare,16/ 4);
+                
+                ynorif1_AndBytes((__u8 *)&tmpSpare,(__u8 *)spare,sizeof(yaffs_Spare));
+                
+                ynorif1_FlashWrite32(spareAddr,(__u32 *)&tmpSpare,16/ 4);
+        }
+        else {
+                YBUG();
+        }
+        
+
+	return YAFFS_OK;	
+
+}
+
+int ynorif1_ReadChunkFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_Spare *spare)
+{
+
+	__u32 *dataAddr = Chunk2DataAddr(dev,chunkInNAND);
+	__u32 *spareAddr = Chunk2SpareAddr(dev,chunkInNAND);
+	
+	if(data)
+	{
+		ynorif1_FlashRead32(dataAddr,(__u32 *)data,dev->totalBytesPerChunk / 4);
+	}
+	
+        if(spare)
+        {
+                ynorif1_FlashRead32(spareAddr,(__u32 *)spare,16/ 4);
+                
+                /* If the page status is 0xF then it was written properly
+                 * so change that to 0xFF so that the rest of yaffs is happy.
+                 */
+                if(spare->pageStatus == YNOR_POSTMARKER)
+                        spare->pageStatus = 0xFF;
+        }
+        
+
+	return YAFFS_OK;	
+
+}
+
+static int ynorif1_FormatBlock(yaffs_Device *dev, int blockNumber)
+{
+	__u32 *blockAddr = Block2Addr(dev,blockNumber);
+	__u32 *formatAddr = Block2FormatAddr(dev,blockNumber);
+	__u32 formatValue = FORMAT_VALUE;
+	
+	ynorif1_FlashEraseBlock(blockAddr);
+	ynorif1_FlashWrite32(formatAddr,&formatValue,1);
+	
+	return YAFFS_OK;
+}
+
+static int ynorif1_UnformatBlock(yaffs_Device *dev, int blockNumber)
+{
+	__u32 *formatAddr = Block2FormatAddr(dev,blockNumber);
+	__u32 formatValue = 0;
+	
+	ynorif1_FlashWrite32(formatAddr,&formatValue,1);
+	
+	return YAFFS_OK;
+}
+
+static int ynorif1_IsBlockFormatted(yaffs_Device *dev, int blockNumber)
+{
+	__u32 *formatAddr = Block2FormatAddr(dev,blockNumber);
+	__u32 formatValue;
+	
+	
+	ynorif1_FlashRead32(formatAddr,&formatValue,1);
+	
+	return (formatValue == FORMAT_VALUE);
+}
+
+int ynorif1_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
+{
+
+	if(blockNumber < 0 || blockNumber >= BLOCKS_IN_DEVICE)
+	{
+		T(YAFFS_TRACE_ALWAYS,("Attempt to erase non-existant block %d\n",blockNumber));
+		return YAFFS_FAIL;
+	}
+	else
+	{
+		ynorif1_UnformatBlock(dev,blockNumber);
+		ynorif1_FormatBlock(dev,blockNumber);
+		return YAFFS_OK;
+	}
+	
+}
+
+int ynorif1_InitialiseNAND(yaffs_Device *dev)
+{
+	int i;
+	
+	ynorif1_FlashInit();
+	/* Go through the blocks formatting them if they are not formatted */
+	for(i = dev->startBlock; i <= dev->endBlock; i++){
+		if(!ynorif1_IsBlockFormatted(dev,i)){
+			ynorif1_FormatBlock(dev,i);
+		}
+	}
+	return YAFFS_OK;
+}
+
+int ynorif1_DeinitialiseNAND(yaffs_Device *dev)
+{
+	
+	ynorif1_FlashDeinit();
+
+	return YAFFS_OK;
+}
+
+