/* *  ppcboot/include/linux/mtd/nand.h * *  Copyright (c) 2000 David Woodhouse <dwmw2@mvhi.com> *                     Steven J. Hill <sjhill@cotw.com> * * $Id: nand.h,v 1.8 2000/10/30 17:16:17 sjhill Exp $ * * 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. * *  Info: *   Contains standard defines and IDs for NAND flash devices * *  Changelog: *   01-31-2000 DMW     Created *   09-18-2000 SJH     Moved structure out of the Disk-On-Chip drivers *			so it can be used by other NAND flash device *			drivers. I also changed the copyright since none *			of the original contents of this file are specific *			to DoC devices. David can whack me with a baseball *			bat later if I did something naughty. *   10-11-2000 SJH     Added private NAND flash structure for driver *   10-24-2000 SJH     Added prototype for 'nand_scan' function */#ifndef __LINUX_MTD_NAND_H#define __LINUX_MTD_NAND_H/* * Standard NAND flash commands */#define NAND_CMD_READ0		0#define NAND_CMD_READ1		1#define NAND_CMD_PAGEPROG	0x10#define NAND_CMD_READOOB	0x50#define NAND_CMD_ERASE1		0x60#define NAND_CMD_STATUS		0x70#define NAND_CMD_SEQIN		0x80#define NAND_CMD_READID		0x90#define NAND_CMD_ERASE2		0xd0#define NAND_CMD_RESET		0xff/* * NAND Flash Manufacturer ID Codes */#define NAND_MFR_TOSHIBA	0x98#define NAND_MFR_SAMSUNG	0xec/* * NAND Flash Device ID Structure * * Structure overview: * *  name - Complete name of device * *  manufacture_id - manufacturer ID code of device. * *  model_id - model ID code of device. * *  chipshift - total number of address bits for the device which *              is used to calculate address offsets and the total *              number of bytes the device is capable of. * *  page256 - denotes if flash device has 256 byte pages or not. * *  pageadrlen - number of bytes minus one needed to hold the *               complete address into the flash array. Keep in *               mind that when a read or write is done to a *               specific address, the address is input serially *               8 bits at a time. This structure member is used *               by the read/write routines as a loop index for *               shifting the address out 8 bits at a time. * *  erasesize - size of an erase block in the flash device. */struct nand_flash_dev {	char * name;	int manufacture_id;	int model_id;	int chipshift;	char page256;	char pageadrlen;	unsigned long erasesize;};#endif /* __LINUX_MTD_NAND_H */