/* * 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. *//* * yaffscfg.c  The configuration for the "direct" use of yaffs. * * This file is intended to be modified to your requirements. * There is no need to redistribute this file. */#include "yaffscfg.h"#include "yaffsfs.h"#include <errno.h>unsigned yaffs_traceMask = 0xFFFFFFFF;void yaffsfs_SetError(int err){	//Do whatever to set error	errno = err;}void yaffsfs_Lock(void){}void yaffsfs_Unlock(void){}__u32 yaffsfs_CurrentTime(void){	return 0;}void *yaffs_malloc(size_t size){	return malloc(size);}void yaffs_free(void *ptr){	free(ptr);}void yaffsfs_LocalInitialisation(void){	// Define locking semaphore.}// Configuration for:// /ram  2MB ramdisk// /boot 2MB boot disk (flash)// /flash 14MB flash disk (flash)// NB Though /boot and /flash occupy the same physical device they// are still disticnt "yaffs_Devices. You may think of these as "partitions"// using non-overlapping areas in the same device.// #include "yaffs_ramdisk.h"#include "yaffs_flashif.h"static yaffs_Device ramDev;static yaffs_Device bootDev;static yaffs_Device flashDev;static yaffsfs_DeviceConfiguration yaffsfs_config[] = {	{ "/ram", &ramDev},	{ "/boot", &bootDev},	{ "/flash", &flashDev},	{(void *)0,(void *)0}};int yaffs_StartUp(void){	// Stuff to configure YAFFS	// Stuff to initialise anything special (eg lock semaphore).	yaffsfs_LocalInitialisation();		// Set up devices	// /ram	ramDev.nBytesPerChunk = 512;	ramDev.nChunksPerBlock = 32;	ramDev.nReservedBlocks = 2; // Set this smaller for RAM	ramDev.startBlock = 1; // Can't use block 0	ramDev.endBlock = 127; // Last block in 2MB.		ramDev.useNANDECC = 1;	ramDev.nShortOpCaches = 0;	// Disable caching on this device.	ramDev.genericDevice = (void *) 0;	// Used to identify the device in fstat.	ramDev.writeChunkWithTagsToNAND = yramdisk_WriteChunkWithTagsToNAND;	ramDev.readChunkWithTagsFromNAND = yramdisk_ReadChunkWithTagsFromNAND;	ramDev.eraseBlockInNAND = yramdisk_EraseBlockInNAND;	ramDev.initialiseNAND = yramdisk_InitialiseNAND;	// /boot	bootDev.nBytesPerChunk = 612;	bootDev.nChunksPerBlock = 32;	bootDev.nReservedBlocks = 5;	bootDev.startBlock = 1; // Can't use block 0	bootDev.endBlock = 127; // Last block in 2MB.		bootDev.useNANDECC = 0; // use YAFFS's ECC	bootDev.nShortOpCaches = 10; // Use caches	bootDev.genericDevice = (void *) 1;	// Used to identify the device in fstat.	bootDev.writeChunkToNAND = yflash_WriteChunkToNAND;	bootDev.readChunkFromNAND = yflash_ReadChunkFromNAND;	bootDev.eraseBlockInNAND = yflash_EraseBlockInNAND;	bootDev.initialiseNAND = yflash_InitialiseNAND;		// /flash	flashDev.nBytesPerChunk =  512;	flashDev.nChunksPerBlock = 32;	flashDev.nReservedBlocks = 5;	flashDev.startBlock = 128; // First block after 2MB	flashDev.endBlock = 1023; // Last block in 16MB	flashDev.useNANDECC = 0; // use YAFFS's ECC	flashDev.nShortOpCaches = 10; // Use caches	flashDev.genericDevice = (void *) 2;	// Used to identify the device in fstat.	flashDev.writeChunkToNAND = yflash_WriteChunkToNAND;	flashDev.readChunkFromNAND = yflash_ReadChunkFromNAND;	flashDev.eraseBlockInNAND = yflash_EraseBlockInNAND;	flashDev.initialiseNAND = yflash_InitialiseNAND;	yaffs_initialise(yaffsfs_config);		return 0;}