2 * msys_doc.h: header file of msys_doc.c
5 * Copyright 2003 Niki W. Waibel <niki.waibel@gmx.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #ifndef __MSYS_DOC_H__
25 #define __MSYS_DOC_H__ 1
29 /* idea from include/linux/mtd/doc2000.h */
30 /* registers with __ should not be read/written directly */
31 #define MSYSTEMS_DOC_R__ChipID 0x1000
32 #define MSYSTEMS_DOC_R__DOCStatus 0x1001
33 #define MSYSTEMS_DOC_W_DOCControl 0x1002
34 #define MSYSTEMS_DOC_R_FloorSelect 0x1003
35 #define MSYSTEMS_DOC_W_FloorSelect 0x1003
36 #define MSYSTEMS_DOC_R__CDSNControl 0x1004
37 #define MSYSTEMS_DOC_W__CDSNControl 0x1004
38 #define MSYSTEMS_DOC_R_CDSNDeviceSelect 0x1005
39 #define MSYSTEMS_DOC_W_CDSNDeviceSelect 0x1005
40 #define MSYSTEMS_DOC_R_ECCConfiguration 0x1006
41 #define MSYSTEMS_DOC_W_ECCConfiguration 0x1006
42 #define MSYSTEMS_DOC_R_CDSNSlowIO 0x100d
43 #define MSYSTEMS_DOC_W_CDSNSlowIO 0x100d
44 #define MSYSTEMS_DOC_R_ECCSyndrome0 0x1010
45 #define MSYSTEMS_DOC_R_ECCSyndrome1 0x1011
46 #define MSYSTEMS_DOC_R_ECCSyndrome2 0x1012
47 #define MSYSTEMS_DOC_R_ECCSyndrome3 0x1013
48 #define MSYSTEMS_DOC_R_ECCSyndrome4 0x1014
49 #define MSYSTEMS_DOC_R_ECCSyndrome5 0x1015
50 #define MSYSTEMS_DOC_R_AliasResolution 0x101b
51 #define MSYSTEMS_DOC_W_AliasResolution 0x101b
52 #define MSYSTEMS_DOC_R_ConfigurationInput 0x101c
53 #define MSYSTEMS_DOC_W_ConfigurationInput 0x101c
54 #define MSYSTEMS_DOC_R_ReadPipelineInitialization 0x101d
55 #define MSYSTEMS_DOC_W_WritePipelineTermination 0x101e
56 #define MSYSTEMS_DOC_R_LastDataRead 0x101f
57 #define MSYSTEMS_DOC_W_LastDataRead 0x101f
58 #define MSYSTEMS_DOC_R_NOP 0x1020
59 #define MSYSTEMS_DOC_W_NOP 0x1020
61 #define MSYSTEMS_DOC_R_IPL_0x0000 0x0000
62 #define MSYSTEMS_DOC_R_IPL_0x0001 0x0001
63 #define MSYSTEMS_DOC_R_IPL_0x0002 0x0002
64 #define MSYSTEMS_DOC_R_IPL_0x0003 0x0003
66 #define MSYSTEMS_DOC_R_CDSNIO_BASE 0x0800
67 #define MSYSTEMS_DOC_W_CDSNIO_BASE 0x0800
71 #define doc_read(base,reg) \
72 (*(volatile unsigned char *)(base + MSYSTEMS_DOC_R_##reg))
74 #define doc_read_nop(base) \
77 #define doc_read_2nop(base) \
78 { doc_read_nop(base); doc_read_nop(base); }
80 #define doc_read_4nop(base) \
81 { doc_read_2nop(base); doc_read_2nop(base); }
83 #define doc_write(data,base,reg) \
84 (*(volatile unsigned char *)(base + MSYSTEMS_DOC_W_##reg)) = data
86 #define doc_write_nop(base) \
87 doc_write(0, base, NOP)
89 #define doc_write_2nop(base) \
90 { doc_write_nop(base); doc_write_nop(base); }
92 #define doc_write_4nop(base) \
93 { doc_write_2nop(base); doc_write_2nop(base); }
95 #define _doc_busy(base) /* 0: ready; -1: busy */ \
96 ( ((doc_read(base, _CDSNControl) & 0x80) >> 7) - 1)
98 #define doc_toggle(base) /* 0, 1, 0, 1, 0, 1, ... if a doc is present */ \
99 ( (doc_read(base, ECCConfiguration) & 0x04) >> 2 )
103 extern int probe_md2802(struct flashchip *flash);
104 extern int read_md2802(struct flashchip *flash, unsigned char *buf);
105 extern int erase_md2802(struct flashchip *flash);
106 extern int write_md2802(struct flashchip *flash, unsigned char *buf);
110 #endif /* !__MSYS_DOC_H__ */