111 lines
4.0 KiB
C
111 lines
4.0 KiB
C
/*
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* msys_doc.h: header file of msys_doc.c
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*
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*
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* Copyright 2003 Niki W. Waibel <niki.waibel@gmx.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __MSYS_DOC_H__
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#define __MSYS_DOC_H__ 1
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/* idea from include/linux/mtd/doc2000.h */
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/* registers with __ should not be read/written directly */
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#define MSYSTEMS_DOC_R__ChipID 0x1000
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#define MSYSTEMS_DOC_R__DOCStatus 0x1001
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#define MSYSTEMS_DOC_W_DOCControl 0x1002
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#define MSYSTEMS_DOC_R_FloorSelect 0x1003
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#define MSYSTEMS_DOC_W_FloorSelect 0x1003
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#define MSYSTEMS_DOC_R__CDSNControl 0x1004
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#define MSYSTEMS_DOC_W__CDSNControl 0x1004
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#define MSYSTEMS_DOC_R_CDSNDeviceSelect 0x1005
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#define MSYSTEMS_DOC_W_CDSNDeviceSelect 0x1005
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#define MSYSTEMS_DOC_R_ECCConfiguration 0x1006
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#define MSYSTEMS_DOC_W_ECCConfiguration 0x1006
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#define MSYSTEMS_DOC_R_CDSNSlowIO 0x100d
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#define MSYSTEMS_DOC_W_CDSNSlowIO 0x100d
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#define MSYSTEMS_DOC_R_ECCSyndrome0 0x1010
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#define MSYSTEMS_DOC_R_ECCSyndrome1 0x1011
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#define MSYSTEMS_DOC_R_ECCSyndrome2 0x1012
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#define MSYSTEMS_DOC_R_ECCSyndrome3 0x1013
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#define MSYSTEMS_DOC_R_ECCSyndrome4 0x1014
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#define MSYSTEMS_DOC_R_ECCSyndrome5 0x1015
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#define MSYSTEMS_DOC_R_AliasResolution 0x101b
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#define MSYSTEMS_DOC_W_AliasResolution 0x101b
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#define MSYSTEMS_DOC_R_ConfigurationInput 0x101c
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#define MSYSTEMS_DOC_W_ConfigurationInput 0x101c
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#define MSYSTEMS_DOC_R_ReadPipelineInitialization 0x101d
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#define MSYSTEMS_DOC_W_WritePipelineTermination 0x101e
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#define MSYSTEMS_DOC_R_LastDataRead 0x101f
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#define MSYSTEMS_DOC_W_LastDataRead 0x101f
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#define MSYSTEMS_DOC_R_NOP 0x1020
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#define MSYSTEMS_DOC_W_NOP 0x1020
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#define MSYSTEMS_DOC_R_IPL_0x0000 0x0000
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#define MSYSTEMS_DOC_R_IPL_0x0001 0x0001
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#define MSYSTEMS_DOC_R_IPL_0x0002 0x0002
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#define MSYSTEMS_DOC_R_IPL_0x0003 0x0003
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#define MSYSTEMS_DOC_R_CDSNIO_BASE 0x0800
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#define MSYSTEMS_DOC_W_CDSNIO_BASE 0x0800
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#define doc_read(base,reg) \
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(*(volatile unsigned char *)(base + MSYSTEMS_DOC_R_##reg))
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#define doc_read_nop(base) \
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doc_read(base, NOP)
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#define doc_read_2nop(base) \
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{ doc_read_nop(base); doc_read_nop(base); }
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#define doc_read_4nop(base) \
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{ doc_read_2nop(base); doc_read_2nop(base); }
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#define doc_write(data,base,reg) \
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(*(volatile unsigned char *)(base + MSYSTEMS_DOC_W_##reg)) = data
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#define doc_write_nop(base) \
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doc_write(0, base, NOP)
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#define doc_write_2nop(base) \
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{ doc_write_nop(base); doc_write_nop(base); }
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#define doc_write_4nop(base) \
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{ doc_write_2nop(base); doc_write_2nop(base); }
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#define _doc_busy(base) /* 0: ready; -1: busy */ \
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( ((doc_read(base, _CDSNControl) & 0x80) >> 7) - 1)
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#define doc_toggle(base) /* 0, 1, 0, 1, 0, 1, ... if a doc is present */ \
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( (doc_read(base, ECCConfiguration) & 0x04) >> 2 )
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extern int probe_md2802(struct flashchip *flash);
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extern int read_md2802(struct flashchip *flash, unsigned char *buf);
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extern int erase_md2802(struct flashchip *flash);
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extern int write_md2802(struct flashchip *flash, unsigned char *buf);
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#endif /* !__MSYS_DOC_H__ */
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