2 * This file is part of the flashrom project.
4 * Copyright (C) 2003 Niki W. Waibel <niki.waibel@gmx.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef __MSYS_DOC_H__
22 #define __MSYS_DOC_H__ 1
24 /* idea from include/linux/mtd/doc2000.h */
25 /* registers with __ should not be read/written directly */
26 #define MSYSTEMS_DOC_R__ChipID 0x1000
27 #define MSYSTEMS_DOC_R__DOCStatus 0x1001
28 #define MSYSTEMS_DOC_W_DOCControl 0x1002
29 #define MSYSTEMS_DOC_R_FloorSelect 0x1003
30 #define MSYSTEMS_DOC_W_FloorSelect 0x1003
31 #define MSYSTEMS_DOC_R__CDSNControl 0x1004
32 #define MSYSTEMS_DOC_W__CDSNControl 0x1004
33 #define MSYSTEMS_DOC_R_CDSNDeviceSelect 0x1005
34 #define MSYSTEMS_DOC_W_CDSNDeviceSelect 0x1005
35 #define MSYSTEMS_DOC_R_ECCConfiguration 0x1006
36 #define MSYSTEMS_DOC_W_ECCConfiguration 0x1006
37 #define MSYSTEMS_DOC_R_CDSNSlowIO 0x100d
38 #define MSYSTEMS_DOC_W_CDSNSlowIO 0x100d
39 #define MSYSTEMS_DOC_R_ECCSyndrome0 0x1010
40 #define MSYSTEMS_DOC_R_ECCSyndrome1 0x1011
41 #define MSYSTEMS_DOC_R_ECCSyndrome2 0x1012
42 #define MSYSTEMS_DOC_R_ECCSyndrome3 0x1013
43 #define MSYSTEMS_DOC_R_ECCSyndrome4 0x1014
44 #define MSYSTEMS_DOC_R_ECCSyndrome5 0x1015
45 #define MSYSTEMS_DOC_R_AliasResolution 0x101b
46 #define MSYSTEMS_DOC_W_AliasResolution 0x101b
47 #define MSYSTEMS_DOC_R_ConfigurationInput 0x101c
48 #define MSYSTEMS_DOC_W_ConfigurationInput 0x101c
49 #define MSYSTEMS_DOC_R_ReadPipelineInitialization 0x101d
50 #define MSYSTEMS_DOC_W_WritePipelineTermination 0x101e
51 #define MSYSTEMS_DOC_R_LastDataRead 0x101f
52 #define MSYSTEMS_DOC_W_LastDataRead 0x101f
53 #define MSYSTEMS_DOC_R_NOP 0x1020
54 #define MSYSTEMS_DOC_W_NOP 0x1020
56 #define MSYSTEMS_DOC_R_IPL_0x0000 0x0000
57 #define MSYSTEMS_DOC_R_IPL_0x0001 0x0001
58 #define MSYSTEMS_DOC_R_IPL_0x0002 0x0002
59 #define MSYSTEMS_DOC_R_IPL_0x0003 0x0003
61 #define MSYSTEMS_DOC_R_CDSNIO_BASE 0x0800
62 #define MSYSTEMS_DOC_W_CDSNIO_BASE 0x0800
64 #define doc_read(base,reg) \
65 (*(volatile uint8_t *)(base + MSYSTEMS_DOC_R_##reg))
67 #define doc_read_nop(base) \
70 #define doc_read_2nop(base) \
71 { doc_read_nop(base); doc_read_nop(base); }
73 #define doc_read_4nop(base) \
74 { doc_read_2nop(base); doc_read_2nop(base); }
76 #define doc_write(data,base,reg) \
77 (*(volatile uint8_t *)(base + MSYSTEMS_DOC_W_##reg)) = data
79 #define doc_write_nop(base) \
80 doc_write(0, base, NOP)
82 #define doc_write_2nop(base) \
83 { doc_write_nop(base); doc_write_nop(base); }
85 #define doc_write_4nop(base) \
86 { doc_write_2nop(base); doc_write_2nop(base); }
88 #define _doc_busy(base) /* 0: ready; -1: busy */ \
89 ( ((doc_read(base, _CDSNControl) & 0x80) >> 7) - 1)
91 #define doc_toggle(base) /* 0, 1, 0, 1, 0, 1, ... if a doc is present */ \
92 ( (doc_read(base, ECCConfiguration) & 0x04) >> 2 )
94 int probe_md2802(struct flashchip *flash);
95 int read_md2802(struct flashchip *flash, uint8_t *buf);
96 int erase_md2802(struct flashchip *flash);
97 int write_md2802(struct flashchip *flash, uint8_t *buf);
99 #endif /* !__MSYS_DOC_H__ */