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/
usr/
src/
linux-headers-3.0.0-14/
include/
linux/
mtd/
- drwxr-xr-x
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Viewing file:  doc2000.h (6.03 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
/*
* Linux driver for Disk-On-Chip devices
*
* Copyright © 1999 Machine Vision Holdings, Inc.
* Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
* Copyright © 2002-2003 Greg Ungerer <gerg@snapgear.com>
* Copyright © 2002-2003 SnapGear Inc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef __MTD_DOC2000_H__
#define __MTD_DOC2000_H__
#include <linux/mtd/mtd.h>
#include <linux/mutex.h>
#define DoC_Sig1 0
#define DoC_Sig2 1
#define DoC_ChipID 0x1000
#define DoC_DOCStatus 0x1001
#define DoC_DOCControl 0x1002
#define DoC_FloorSelect 0x1003
#define DoC_CDSNControl 0x1004
#define DoC_CDSNDeviceSelect 0x1005
#define DoC_ECCConf 0x1006
#define DoC_2k_ECCStatus 0x1007
#define DoC_CDSNSlowIO 0x100d
#define DoC_ECCSyndrome0 0x1010
#define DoC_ECCSyndrome1 0x1011
#define DoC_ECCSyndrome2 0x1012
#define DoC_ECCSyndrome3 0x1013
#define DoC_ECCSyndrome4 0x1014
#define DoC_ECCSyndrome5 0x1015
#define DoC_AliasResolution 0x101b
#define DoC_ConfigInput 0x101c
#define DoC_ReadPipeInit 0x101d
#define DoC_WritePipeTerm 0x101e
#define DoC_LastDataRead 0x101f
#define DoC_NOP 0x1020
#define DoC_Mil_CDSN_IO 0x0800
#define DoC_2k_CDSN_IO 0x1800
#define DoC_Mplus_NOP 0x1002
#define DoC_Mplus_AliasResolution 0x1004
#define DoC_Mplus_DOCControl 0x1006
#define DoC_Mplus_AccessStatus 0x1008
#define DoC_Mplus_DeviceSelect 0x1008
#define DoC_Mplus_Configuration 0x100a
#define DoC_Mplus_OutputControl 0x100c
#define DoC_Mplus_FlashControl 0x1020
#define DoC_Mplus_FlashSelect 0x1022
#define DoC_Mplus_FlashCmd 0x1024
#define DoC_Mplus_FlashAddress 0x1026
#define DoC_Mplus_FlashData0 0x1028
#define DoC_Mplus_FlashData1 0x1029
#define DoC_Mplus_ReadPipeInit 0x102a
#define DoC_Mplus_LastDataRead 0x102c
#define DoC_Mplus_LastDataRead1 0x102d
#define DoC_Mplus_WritePipeTerm 0x102e
#define DoC_Mplus_ECCSyndrome0 0x1040
#define DoC_Mplus_ECCSyndrome1 0x1041
#define DoC_Mplus_ECCSyndrome2 0x1042
#define DoC_Mplus_ECCSyndrome3 0x1043
#define DoC_Mplus_ECCSyndrome4 0x1044
#define DoC_Mplus_ECCSyndrome5 0x1045
#define DoC_Mplus_ECCConf 0x1046
#define DoC_Mplus_Toggle 0x1046
#define DoC_Mplus_DownloadStatus 0x1074
#define DoC_Mplus_CtrlConfirm 0x1076
#define DoC_Mplus_Power 0x1fff
/* How to access the device?
* On ARM, it'll be mmap'd directly with 32-bit wide accesses.
* On PPC, it's mmap'd and 16-bit wide.
* Others use readb/writeb
*/
#if defined(__arm__)
#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u32 *)(((unsigned long)adr)+((reg)<<2))))
#define WriteDOC_(d, adr, reg) do{ *(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
#define DOC_IOREMAP_LEN 0x8000
#elif defined(__ppc__)
#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u16 *)(((unsigned long)adr)+((reg)<<1))))
#define WriteDOC_(d, adr, reg) do{ *(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
#define DOC_IOREMAP_LEN 0x4000
#else
#define ReadDOC_(adr, reg) readb((void __iomem *)(adr) + (reg))
#define WriteDOC_(d, adr, reg) writeb(d, (void __iomem *)(adr) + (reg))
#define DOC_IOREMAP_LEN 0x2000
#endif
#if defined(__i386__) || defined(__x86_64__)
#define USE_MEMCPY
#endif
/* These are provided to directly use the DoC_xxx defines */
#define ReadDOC(adr, reg) ReadDOC_(adr,DoC_##reg)
#define WriteDOC(d, adr, reg) WriteDOC_(d,adr,DoC_##reg)
#define DOC_MODE_RESET 0
#define DOC_MODE_NORMAL 1
#define DOC_MODE_RESERVED1 2
#define DOC_MODE_RESERVED2 3
#define DOC_MODE_CLR_ERR 0x80
#define DOC_MODE_RST_LAT 0x10
#define DOC_MODE_BDECT 0x08
#define DOC_MODE_MDWREN 0x04
#define DOC_ChipID_Doc2k 0x20
#define DOC_ChipID_Doc2kTSOP 0x21 /* internal number for MTD */
#define DOC_ChipID_DocMil 0x30
#define DOC_ChipID_DocMilPlus32 0x40
#define DOC_ChipID_DocMilPlus16 0x41
#define CDSN_CTRL_FR_B 0x80
#define CDSN_CTRL_FR_B0 0x40
#define CDSN_CTRL_FR_B1 0x80
#define CDSN_CTRL_ECC_IO 0x20
#define CDSN_CTRL_FLASH_IO 0x10
#define CDSN_CTRL_WP 0x08
#define CDSN_CTRL_ALE 0x04
#define CDSN_CTRL_CLE 0x02
#define CDSN_CTRL_CE 0x01
#define DOC_ECC_RESET 0
#define DOC_ECC_ERROR 0x80
#define DOC_ECC_RW 0x20
#define DOC_ECC__EN 0x08
#define DOC_TOGGLE_BIT 0x04
#define DOC_ECC_RESV 0x02
#define DOC_ECC_IGNORE 0x01
#define DOC_FLASH_CE 0x80
#define DOC_FLASH_WP 0x40
#define DOC_FLASH_BANK 0x02
/* We have to also set the reserved bit 1 for enable */
#define DOC_ECC_EN (DOC_ECC__EN | DOC_ECC_RESV)
#define DOC_ECC_DIS (DOC_ECC_RESV)
struct Nand {
char floor, chip;
unsigned long curadr;
unsigned char curmode;
/* Also some erase/write/pipeline info when we get that far */
};
#define MAX_FLOORS 4
#define MAX_CHIPS 4
#define MAX_FLOORS_MIL 1
#define MAX_CHIPS_MIL 1
#define MAX_FLOORS_MPLUS 2
#define MAX_CHIPS_MPLUS 1
#define ADDR_COLUMN 1
#define ADDR_PAGE 2
#define ADDR_COLUMN_PAGE 3
struct DiskOnChip {
unsigned long physadr;
void __iomem *virtadr;
unsigned long totlen;
unsigned char ChipID; /* Type of DiskOnChip */
int ioreg;
unsigned long mfr; /* Flash IDs - only one type of flash per device */
unsigned long id;
int chipshift;
char page256;
char pageadrlen;
char interleave; /* Internal interleaving - Millennium Plus style */
unsigned long erasesize;
int curfloor;
int curchip;
int numchips;
struct Nand *chips;
struct mtd_info *nextdoc;
struct mutex lock;
};
int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
#endif /* __MTD_DOC2000_H__ */
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