android_kernel_cmhtcleo/fs/yaffs2/yaffs_mtdif.c
2010-11-04 21:55:11 +01:00

57 lines
1.2 KiB
C

/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2010 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.
*/
#include "yportenv.h"
#include "yaffs_mtdif.h"
#include "linux/mtd/mtd.h"
#include "linux/types.h"
#include "linux/time.h"
#include "linux/mtd/nand.h"
#include "yaffs_linux.h"
int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
{
struct mtd_info *mtd = yaffs_DeviceToMtd(dev);
__u32 addr =
((loff_t) blockNumber) * dev->param.totalBytesPerChunk
* dev->param.nChunksPerBlock;
struct erase_info ei;
int retval = 0;
ei.mtd = mtd;
ei.addr = addr;
ei.len = dev->param.totalBytesPerChunk * dev->param.nChunksPerBlock;
ei.time = 1000;
ei.retries = 2;
ei.callback = NULL;
ei.priv = (u_long) dev;
retval = mtd->erase(mtd, &ei);
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd_InitialiseNAND(yaffs_Device *dev)
{
return YAFFS_OK;
}