mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
152 lines
3.9 KiB
C
152 lines
3.9 KiB
C
|
|
/* Linux driver for Disk-On-Chip 2000 */
|
|
/* (c) 1999 Machine Vision Holdings, Inc. */
|
|
/* Author: David Woodhouse <dwmw2@mvhi.com> */
|
|
/* $Id: doc2000.h,v 1.15 2001/09/19 00:22:15 dwmw2 Exp $ */
|
|
|
|
#ifndef __MTD_DOC2000_H__
|
|
#define __MTD_DOC2000_H__
|
|
|
|
struct DiskOnChip;
|
|
|
|
#include <linux/mtd/nftl.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 ReadDOC_(adr, reg) ((volatile unsigned char)(*(volatile __u8 *)(((unsigned long)adr)+((reg)))))
|
|
#define WriteDOC_(d, adr, reg) do{ *(volatile __u8 *)(((unsigned long)adr)+((reg))) = (__u8)d; eieio();} while(0)
|
|
|
|
#define DOC_IOREMAP_LEN 0x4000
|
|
|
|
/* 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_MDWREN 4
|
|
#define DOC_MODE_CLR_ERR 0x80
|
|
|
|
#define DOC_ChipID_UNKNOWN 0x00
|
|
#define DOC_ChipID_Doc2k 0x20
|
|
#define DOC_ChipID_DocMil 0x30
|
|
|
|
#define CDSN_CTRL_FR_B 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
|
|
|
|
/* 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)
|
|
|
|
#define MAX_FLOORS 4
|
|
#define MAX_CHIPS 4
|
|
|
|
#define MAX_FLOORS_MIL 4
|
|
#define MAX_CHIPS_MIL 1
|
|
|
|
#define ADDR_COLUMN 1
|
|
#define ADDR_PAGE 2
|
|
#define ADDR_COLUMN_PAGE 3
|
|
|
|
struct DiskOnChip {
|
|
unsigned long physadr;
|
|
unsigned long virtadr;
|
|
unsigned long totlen;
|
|
char* name;
|
|
char ChipID; /* Type of DiskOnChip */
|
|
int ioreg;
|
|
|
|
char* chips_name;
|
|
unsigned long mfr; /* Flash IDs - only one type of flash per device */
|
|
unsigned long id;
|
|
int chipshift;
|
|
char page256;
|
|
char pageadrlen;
|
|
unsigned long erasesize;
|
|
|
|
int curfloor;
|
|
int curchip;
|
|
|
|
int numchips;
|
|
struct Nand *chips;
|
|
|
|
int nftl_found;
|
|
struct NFTLrecord nftl;
|
|
};
|
|
|
|
#define SECTORSIZE 512
|
|
|
|
/* Return codes from doc_write(), doc_read(), and doc_erase().
|
|
*/
|
|
#define DOC_OK 0
|
|
#define DOC_EIO 1
|
|
#define DOC_EINVAL 2
|
|
#define DOC_EECC 3
|
|
#define DOC_ETIMEOUT 4
|
|
|
|
/*
|
|
* Function Prototypes
|
|
*/
|
|
int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
|
|
|
|
int doc_rw(struct DiskOnChip* this, int cmd, loff_t from, size_t len,
|
|
size_t *retlen, u_char *buf);
|
|
int doc_read_ecc(struct DiskOnChip* this, loff_t from, size_t len,
|
|
size_t *retlen, u_char *buf, u_char *eccbuf);
|
|
int doc_write_ecc(struct DiskOnChip* this, loff_t to, size_t len,
|
|
size_t *retlen, const u_char *buf, u_char *eccbuf);
|
|
int doc_read_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
|
|
size_t *retlen, u_char *buf);
|
|
int doc_write_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
|
|
size_t *retlen, const u_char *buf);
|
|
int doc_erase (struct DiskOnChip* this, loff_t ofs, size_t len);
|
|
|
|
void doc_probe(unsigned long physadr);
|
|
|
|
void doc_print(struct DiskOnChip*);
|
|
|
|
#endif /* __MTD_DOC2000_H__ */
|