1 /*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * See file CREDITS for list of people who contributed to this
5 * project.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
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.
16 *
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., 59 Temple Place, Suite 330, Boston,
20 * MA 02111-1307 USA
21 */
22 #ifndef __ATMEL_MCI_H__
23 #define __ATMEL_MCI_H__
25 int atmel_mci_init(void *regs);
27 #ifndef __ASSEMBLY__
29 /*
30 * Structure for struct SoC access.
31 * Names starting with '_' are fillers.
32 */
33 typedef struct atmel_mci {
34 /* reg Offset */
35 u32 cr; /* 0x00 */
36 u32 mr; /* 0x04 */
37 u32 dtor; /* 0x08 */
38 u32 sdcr; /* 0x0c */
39 u32 argr; /* 0x10 */
40 u32 cmdr; /* 0x14 */
41 u32 blkr; /* 0x18 */
42 u32 _1c; /* 0x1c */
43 u32 rspr; /* 0x20 */
44 u32 rspr1; /* 0x24 */
45 u32 rspr2; /* 0x28 */
46 u32 rspr3; /* 0x2c */
47 u32 rdr; /* 0x30 */
48 u32 tdr; /* 0x34 */
49 u32 _38; /* 0x38 */
50 u32 _3c; /* 0x3c */
51 u32 sr; /* 0x40 */
52 u32 ier; /* 0x44 */
53 u32 idr; /* 0x48 */
54 u32 imr; /* 0x4c */
55 } atmel_mci_t;
57 #endif /* __ASSEMBLY__ */
59 /* Bitfields in CR */
60 #define MMCI_MCIEN_OFFSET 0
61 #define MMCI_MCIEN_SIZE 1
62 #define MMCI_MCIDIS_OFFSET 1
63 #define MMCI_MCIDIS_SIZE 1
64 #define MMCI_PWSEN_OFFSET 2
65 #define MMCI_PWSEN_SIZE 1
66 #define MMCI_PWSDIS_OFFSET 3
67 #define MMCI_PWSDIS_SIZE 1
68 #define MMCI_SWRST_OFFSET 7
69 #define MMCI_SWRST_SIZE 1
71 /* Bitfields in MR */
72 #define MMCI_CLKDIV_OFFSET 0
73 #define MMCI_CLKDIV_SIZE 8
74 #define MMCI_PWSDIV_OFFSET 8
75 #define MMCI_PWSDIV_SIZE 3
76 #define MMCI_RDPROOF_OFFSET 11
77 #define MMCI_RDPROOF_SIZE 1
78 #define MMCI_WRPROOF_OFFSET 12
79 #define MMCI_WRPROOF_SIZE 1
80 #define MMCI_PDCPADV_OFFSET 14
81 #define MMCI_PDCPADV_SIZE 1
82 #define MMCI_PDCMODE_OFFSET 15
83 #define MMCI_PDCMODE_SIZE 1
84 #define MMCI_BLKLEN_OFFSET 16
85 #define MMCI_BLKLEN_SIZE 16
87 /* Bitfields in DTOR */
88 #define MMCI_DTOCYC_OFFSET 0
89 #define MMCI_DTOCYC_SIZE 4
90 #define MMCI_DTOMUL_OFFSET 4
91 #define MMCI_DTOMUL_SIZE 3
93 /* Bitfields in SDCR */
94 #define MMCI_SCDSEL_OFFSET 0
95 #define MMCI_SCDSEL_SIZE 4
96 #define MMCI_SCDBUS_OFFSET 7
97 #define MMCI_SCDBUS_SIZE 1
99 /* Bitfields in ARGR */
100 #define MMCI_ARG_OFFSET 0
101 #define MMCI_ARG_SIZE 32
103 /* Bitfields in CMDR */
104 #define MMCI_CMDNB_OFFSET 0
105 #define MMCI_CMDNB_SIZE 6
106 #define MMCI_RSPTYP_OFFSET 6
107 #define MMCI_RSPTYP_SIZE 2
108 #define MMCI_SPCMD_OFFSET 8
109 #define MMCI_SPCMD_SIZE 3
110 #define MMCI_OPDCMD_OFFSET 11
111 #define MMCI_OPDCMD_SIZE 1
112 #define MMCI_MAXLAT_OFFSET 12
113 #define MMCI_MAXLAT_SIZE 1
114 #define MMCI_TRCMD_OFFSET 16
115 #define MMCI_TRCMD_SIZE 2
116 #define MMCI_TRDIR_OFFSET 18
117 #define MMCI_TRDIR_SIZE 1
118 #define MMCI_TRTYP_OFFSET 19
119 #define MMCI_TRTYP_SIZE 2
121 /* Bitfields in BLKR */
122 /* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */
123 #define MMCI_BCNT_OFFSET 0
124 #define MMCI_BCNT_SIZE 16
126 /* Bitfields in RSPRx */
127 #define MMCI_RSP_OFFSET 0
128 #define MMCI_RSP_SIZE 32
130 /* Bitfields in SR/IER/IDR/IMR */
131 #define MMCI_CMDRDY_OFFSET 0
132 #define MMCI_CMDRDY_SIZE 1
133 #define MMCI_RXRDY_OFFSET 1
134 #define MMCI_RXRDY_SIZE 1
135 #define MMCI_TXRDY_OFFSET 2
136 #define MMCI_TXRDY_SIZE 1
137 #define MMCI_BLKE_OFFSET 3
138 #define MMCI_BLKE_SIZE 1
139 #define MMCI_DTIP_OFFSET 4
140 #define MMCI_DTIP_SIZE 1
141 #define MMCI_NOTBUSY_OFFSET 5
142 #define MMCI_NOTBUSY_SIZE 1
143 #define MMCI_ENDRX_OFFSET 6
144 #define MMCI_ENDRX_SIZE 1
145 #define MMCI_ENDTX_OFFSET 7
146 #define MMCI_ENDTX_SIZE 1
147 #define MMCI_RXBUFF_OFFSET 14
148 #define MMCI_RXBUFF_SIZE 1
149 #define MMCI_TXBUFE_OFFSET 15
150 #define MMCI_TXBUFE_SIZE 1
151 #define MMCI_RINDE_OFFSET 16
152 #define MMCI_RINDE_SIZE 1
153 #define MMCI_RDIRE_OFFSET 17
154 #define MMCI_RDIRE_SIZE 1
155 #define MMCI_RCRCE_OFFSET 18
156 #define MMCI_RCRCE_SIZE 1
157 #define MMCI_RENDE_OFFSET 19
158 #define MMCI_RENDE_SIZE 1
159 #define MMCI_RTOE_OFFSET 20
160 #define MMCI_RTOE_SIZE 1
161 #define MMCI_DCRCE_OFFSET 21
162 #define MMCI_DCRCE_SIZE 1
163 #define MMCI_DTOE_OFFSET 22
164 #define MMCI_DTOE_SIZE 1
165 #define MMCI_OVRE_OFFSET 30
166 #define MMCI_OVRE_SIZE 1
167 #define MMCI_UNRE_OFFSET 31
168 #define MMCI_UNRE_SIZE 1
170 /* Constants for DTOMUL */
171 #define MMCI_DTOMUL_1_CYCLE 0
172 #define MMCI_DTOMUL_16_CYCLES 1
173 #define MMCI_DTOMUL_128_CYCLES 2
174 #define MMCI_DTOMUL_256_CYCLES 3
175 #define MMCI_DTOMUL_1024_CYCLES 4
176 #define MMCI_DTOMUL_4096_CYCLES 5
177 #define MMCI_DTOMUL_65536_CYCLES 6
178 #define MMCI_DTOMUL_1048576_CYCLES 7
180 /* Constants for RSPTYP */
181 #define MMCI_RSPTYP_NO_RESP 0
182 #define MMCI_RSPTYP_48_BIT_RESP 1
183 #define MMCI_RSPTYP_136_BIT_RESP 2
185 /* Constants for SPCMD */
186 #define MMCI_SPCMD_NO_SPEC_CMD 0
187 #define MMCI_SPCMD_INIT_CMD 1
188 #define MMCI_SPCMD_SYNC_CMD 2
189 #define MMCI_SPCMD_INT_CMD 4
190 #define MMCI_SPCMD_INT_RESP 5
192 /* Constants for TRCMD */
193 #define MMCI_TRCMD_NO_TRANS 0
194 #define MMCI_TRCMD_START_TRANS 1
195 #define MMCI_TRCMD_STOP_TRANS 2
197 /* Constants for TRTYP */
198 #define MMCI_TRTYP_BLOCK 0
199 #define MMCI_TRTYP_MULTI_BLOCK 1
200 #define MMCI_TRTYP_STREAM 2
202 /* Bit manipulation macros */
203 #define MMCI_BIT(name) \
204 (1 << MMCI_##name##_OFFSET)
205 #define MMCI_BF(name,value) \
206 (((value) & ((1 << MMCI_##name##_SIZE) - 1)) \
207 << MMCI_##name##_OFFSET)
208 #define MMCI_BFEXT(name,value) \
209 (((value) >> MMCI_##name##_OFFSET)\
210 & ((1 << MMCI_##name##_SIZE) - 1))
211 #define MMCI_BFINS(name,value,old) \
212 (((old) & ~(((1 << MMCI_##name##_SIZE) - 1) \
213 << MMCI_##name##_OFFSET)) \
214 | MMCI_BF(name,value))
216 #endif /* __ATMEL_MCI_H__ */