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/*
* msys_doc.h: header file of msys_doc.c
*
*
* Copyright 2003 Niki W. Waibel <niki.waibel@gmx.net>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __MSYS_DOC_H__
#define __MSYS_DOC_H__ 1
/* idea from include/linux/mtd/doc2000.h */
/* registers with __ should not be read/written directly */
#define MSYSTEMS_DOC_R__ChipID 0x1000
#define MSYSTEMS_DOC_R__DOCStatus 0x1001
#define MSYSTEMS_DOC_W_DOCControl 0x1002
#define MSYSTEMS_DOC_R_FloorSelect 0x1003
#define MSYSTEMS_DOC_W_FloorSelect 0x1003
#define MSYSTEMS_DOC_R__CDSNControl 0x1004
#define MSYSTEMS_DOC_W__CDSNControl 0x1004
#define MSYSTEMS_DOC_R_CDSNDeviceSelect 0x1005
#define MSYSTEMS_DOC_W_CDSNDeviceSelect 0x1005
#define MSYSTEMS_DOC_R_ECCConfiguration 0x1006
#define MSYSTEMS_DOC_W_ECCConfiguration 0x1006
#define MSYSTEMS_DOC_R_CDSNSlowIO 0x100d
#define MSYSTEMS_DOC_W_CDSNSlowIO 0x100d
#define MSYSTEMS_DOC_R_ECCSyndrome0 0x1010
#define MSYSTEMS_DOC_R_ECCSyndrome1 0x1011
#define MSYSTEMS_DOC_R_ECCSyndrome2 0x1012
#define MSYSTEMS_DOC_R_ECCSyndrome3 0x1013
#define MSYSTEMS_DOC_R_ECCSyndrome4 0x1014
#define MSYSTEMS_DOC_R_ECCSyndrome5 0x1015
#define MSYSTEMS_DOC_R_AliasResolution 0x101b
#define MSYSTEMS_DOC_W_AliasResolution 0x101b
#define MSYSTEMS_DOC_R_ConfigurationInput 0x101c
#define MSYSTEMS_DOC_W_ConfigurationInput 0x101c
#define MSYSTEMS_DOC_R_ReadPipelineInitialization 0x101d
#define MSYSTEMS_DOC_W_WritePipelineTermination 0x101e
#define MSYSTEMS_DOC_R_LastDataRead 0x101f
#define MSYSTEMS_DOC_W_LastDataRead 0x101f
#define MSYSTEMS_DOC_R_NOP 0x1020
#define MSYSTEMS_DOC_W_NOP 0x1020
#define MSYSTEMS_DOC_R_IPL_0x0000 0x0000
#define MSYSTEMS_DOC_R_IPL_0x0001 0x0001
#define MSYSTEMS_DOC_R_IPL_0x0002 0x0002
#define MSYSTEMS_DOC_R_IPL_0x0003 0x0003
#define MSYSTEMS_DOC_R_CDSNIO_BASE 0x0800
#define MSYSTEMS_DOC_W_CDSNIO_BASE 0x0800
#define doc_read(base,reg) \
(*(volatile unsigned char *)(base + MSYSTEMS_DOC_R_##reg))
#define doc_read_nop(base) \
doc_read(base, NOP)
#define doc_read_2nop(base) \
{ doc_read_nop(base); doc_read_nop(base); }
#define doc_read_4nop(base) \
{ doc_read_2nop(base); doc_read_2nop(base); }
#define doc_write(data,base,reg) \
(*(volatile unsigned char *)(base + MSYSTEMS_DOC_W_##reg)) = data
#define doc_write_nop(base) \
doc_write(0, base, NOP)
#define doc_write_2nop(base) \
{ doc_write_nop(base); doc_write_nop(base); }
#define doc_write_4nop(base) \
{ doc_write_2nop(base); doc_write_2nop(base); }
#define _doc_busy(base) /* 0: ready; -1: busy */ \
( ((doc_read(base, _CDSNControl) & 0x80) >> 7) - 1)
#define doc_toggle(base) /* 0, 1, 0, 1, 0, 1, ... if a doc is present */ \
( (doc_read(base, ECCConfiguration) & 0x04) >> 2 )
extern int probe_md2802(struct flashchip *flash);
extern int read_md2802(struct flashchip *flash, unsigned char *buf);
extern int erase_md2802(struct flashchip *flash);
extern int write_md2802(struct flashchip *flash, unsigned char *buf);
#endif /* !__MSYS_DOC_H__ */
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