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Diffstat (limited to 'include/linux/mtd/nand_legacy.h')
| -rw-r--r-- | include/linux/mtd/nand_legacy.h | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/include/linux/mtd/nand_legacy.h b/include/linux/mtd/nand_legacy.h deleted file mode 100644 index 4334448..0000000 --- a/include/linux/mtd/nand_legacy.h +++ /dev/null @@ -1,196 +0,0 @@ -/* - * linux/include/linux/mtd/nand.h - * - * Copyright (c) 2000 David Woodhouse <dwmw2@mvhi.com> - * Steven J. Hill <sjhill@cotw.com> - * Thomas Gleixner <gleixner@autronix.de> - * - * $Id: nand.h,v 1.7 2003/07/24 23:30:46 a0384864 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 - * 10-29-2001 TG changed nand_chip structure to support - * hardwarespecific function for accessing control lines - * 02-21-2002 TG added support for different read/write adress and - * ready/busy line access function - * 02-26-2002 TG added chip_delay to nand_chip structure to optimize - * command delay times for different chips - * 04-28-2002 TG OOB config defines moved from nand.c to avoid duplicate - * defines in jffs2/wbuf.c - */ -#ifndef __LINUX_MTD_NAND_LEGACY_H -#define __LINUX_MTD_NAND_LEGACY_H - -#ifndef CONFIG_NAND_LEGACY -#error This module is for the legacy NAND support -#endif - -/* The maximum number of NAND chips in an array */ -#ifndef CONFIG_SYS_NAND_MAX_CHIPS -#define CONFIG_SYS_NAND_MAX_CHIPS 1 -#endif - -/* - * 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 Private Flash Chip Data - * - * Structure overview: - * - * IO_ADDR - address to access the 8 I/O lines of the flash device - * - * hwcontrol - hardwarespecific function for accesing control-lines - * - * dev_ready - hardwarespecific function for accesing device ready/busy line - * - * chip_lock - spinlock used to protect access to this structure - * - * wq - wait queue to sleep on if a NAND operation is in progress - * - * state - give the current state of the NAND device - * - * page_shift - number of address bits in a page (column address bits) - * - * data_buf - data buffer passed to/from MTD user modules - * - * data_cache - data cache for redundant page access and shadow for - * ECC failure - * - * ecc_code_buf - used only for holding calculated or read ECCs for - * a page read or written when ECC is in use - * - * reserved - padding to make structure fall on word boundary if - * when ECC is in use - */ -struct Nand { - char floor, chip; - unsigned long curadr; - unsigned char curmode; - /* Also some erase/write/pipeline info when we get that far */ -}; - -struct nand_chip { - int page_shift; - u_char *data_buf; - u_char *data_cache; - int cache_page; - u_char ecc_code_buf[6]; - u_char reserved[2]; - char ChipID; /* Type of DiskOnChip */ - struct Nand *chips; - int chipshift; - char* chips_name; - unsigned long erasesize; - unsigned long mfr; /* Flash IDs - only one type of flash per device */ - unsigned long id; - char* name; - int numchips; - char page256; - char pageadrlen; - unsigned long IO_ADDR; /* address to access the 8 I/O lines to the flash device */ - unsigned long totlen; - uint oobblock; /* Size of OOB blocks (e.g. 512) */ - uint oobsize; /* Amount of OOB data per block (e.g. 16) */ - uint eccsize; - int bus16; -}; - -/* - * 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; - int bus16; -}; - -/* -* Constants for oob configuration -*/ -#define NAND_NOOB_ECCPOS0 0 -#define NAND_NOOB_ECCPOS1 1 -#define NAND_NOOB_ECCPOS2 2 -#define NAND_NOOB_ECCPOS3 3 -#define NAND_NOOB_ECCPOS4 6 -#define NAND_NOOB_ECCPOS5 7 -#define NAND_NOOB_BADBPOS -1 -#define NAND_NOOB_ECCVPOS -1 - -#define NAND_JFFS2_OOB_ECCPOS0 0 -#define NAND_JFFS2_OOB_ECCPOS1 1 -#define NAND_JFFS2_OOB_ECCPOS2 2 -#define NAND_JFFS2_OOB_ECCPOS3 3 -#define NAND_JFFS2_OOB_ECCPOS4 6 -#define NAND_JFFS2_OOB_ECCPOS5 7 -#define NAND_JFFS2_OOB_BADBPOS 5 -#define NAND_JFFS2_OOB_ECCVPOS 4 - -#define NAND_JFFS2_OOB8_FSDAPOS 6 -#define NAND_JFFS2_OOB16_FSDAPOS 8 -#define NAND_JFFS2_OOB8_FSDALEN 2 -#define NAND_JFFS2_OOB16_FSDALEN 8 - -unsigned long nand_probe(unsigned long physadr); -#endif /* __LINUX_MTD_NAND_LEGACY_H */ |