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1 /*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6 #ifndef __ATMEL_MCI_H__
7 #define __ATMEL_MCI_H__
8
9 int atmel_mci_init(void *regs);
10
11 #ifndef __ASSEMBLY__
12
13 /*
14 * Structure for struct SoC access.
15 * Names starting with '_' are fillers.
16 */
17 typedef struct atmel_mci {
18 /* reg Offset */
19 u32 cr; /* 0x00 */
20 u32 mr; /* 0x04 */
21 u32 dtor; /* 0x08 */
22 u32 sdcr; /* 0x0c */
23 u32 argr; /* 0x10 */
24 u32 cmdr; /* 0x14 */
25 u32 blkr; /* 0x18 */
26 u32 _1c; /* 0x1c */
27 u32 rspr; /* 0x20 */
28 u32 rspr1; /* 0x24 */
29 u32 rspr2; /* 0x28 */
30 u32 rspr3; /* 0x2c */
31 u32 rdr; /* 0x30 */
32 u32 tdr; /* 0x34 */
33 u32 _38; /* 0x38 */
34 u32 _3c; /* 0x3c */
35 u32 sr; /* 0x40 */
36 u32 ier; /* 0x44 */
37 u32 idr; /* 0x48 */
38 u32 imr; /* 0x4c */
39 u32 dma; /* 0x50 */
40 u32 cfg; /* 0x54 */
41 u32 reserved[41];
42 u32 version;
43 } atmel_mci_t;
44
45 #endif /* __ASSEMBLY__ */
46
47 /* Bitfields in CR */
48 #define MMCI_MCIEN_OFFSET 0
49 #define MMCI_MCIEN_SIZE 1
50 #define MMCI_MCIDIS_OFFSET 1
51 #define MMCI_MCIDIS_SIZE 1
52 #define MMCI_PWSEN_OFFSET 2
53 #define MMCI_PWSEN_SIZE 1
54 #define MMCI_PWSDIS_OFFSET 3
55 #define MMCI_PWSDIS_SIZE 1
56 #define MMCI_SWRST_OFFSET 7
57 #define MMCI_SWRST_SIZE 1
58
59 /* Bitfields in MR */
60 #define MMCI_CLKDIV_OFFSET 0
61 #define MMCI_CLKDIV_SIZE 8
62 #define MMCI_PWSDIV_OFFSET 8
63 #define MMCI_PWSDIV_SIZE 3
64 #define MMCI_RDPROOF_OFFSET 11
65 #define MMCI_RDPROOF_SIZE 1
66 #define MMCI_WRPROOF_OFFSET 12
67 #define MMCI_WRPROOF_SIZE 1
68 #define MMCI_PDCPADV_OFFSET 14
69 #define MMCI_PDCPADV_SIZE 1
70 #define MMCI_PDCMODE_OFFSET 15
71 #define MMCI_PDCMODE_SIZE 1
72 /* MCI IP version >= 0x500, MR bit 16 used for CLKODD */
73 #define MMCI_CLKODD_OFFSET 16
74 #define MMCI_CLKODD_SIZE 1
75 /* MCI IP version < 0x200, MR higher 16bits for BLKLEN */
76 #define MMCI_BLKLEN_OFFSET 16
77 #define MMCI_BLKLEN_SIZE 16
78
79 /* Bitfields in DTOR */
80 #define MMCI_DTOCYC_OFFSET 0
81 #define MMCI_DTOCYC_SIZE 4
82 #define MMCI_DTOMUL_OFFSET 4
83 #define MMCI_DTOMUL_SIZE 3
84
85 /* Bitfields in SDCR */
86 #define MMCI_SCDSEL_OFFSET 0
87 #define MMCI_SCDSEL_SIZE 4
88 #define MMCI_SCDBUS_OFFSET 7
89 #define MMCI_SCDBUS_SIZE 1
90
91 /* Bitfields in ARGR */
92 #define MMCI_ARG_OFFSET 0
93 #define MMCI_ARG_SIZE 32
94
95 /* Bitfields in CMDR */
96 #define MMCI_CMDNB_OFFSET 0
97 #define MMCI_CMDNB_SIZE 6
98 #define MMCI_RSPTYP_OFFSET 6
99 #define MMCI_RSPTYP_SIZE 2
100 #define MMCI_SPCMD_OFFSET 8
101 #define MMCI_SPCMD_SIZE 3
102 #define MMCI_OPDCMD_OFFSET 11
103 #define MMCI_OPDCMD_SIZE 1
104 #define MMCI_MAXLAT_OFFSET 12
105 #define MMCI_MAXLAT_SIZE 1
106 #define MMCI_TRCMD_OFFSET 16
107 #define MMCI_TRCMD_SIZE 2
108 #define MMCI_TRDIR_OFFSET 18
109 #define MMCI_TRDIR_SIZE 1
110 #define MMCI_TRTYP_OFFSET 19
111 #define MMCI_TRTYP_SIZE 2
112
113 /* Bitfields in BLKR */
114 /* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */
115 #define MMCI_BCNT_OFFSET 0
116 #define MMCI_BCNT_SIZE 16
117
118 /* Bitfields in RSPRx */
119 #define MMCI_RSP_OFFSET 0
120 #define MMCI_RSP_SIZE 32
121
122 /* Bitfields in SR/IER/IDR/IMR */
123 #define MMCI_CMDRDY_OFFSET 0
124 #define MMCI_CMDRDY_SIZE 1
125 #define MMCI_RXRDY_OFFSET 1
126 #define MMCI_RXRDY_SIZE 1
127 #define MMCI_TXRDY_OFFSET 2
128 #define MMCI_TXRDY_SIZE 1
129 #define MMCI_BLKE_OFFSET 3
130 #define MMCI_BLKE_SIZE 1
131 #define MMCI_DTIP_OFFSET 4
132 #define MMCI_DTIP_SIZE 1
133 #define MMCI_NOTBUSY_OFFSET 5
134 #define MMCI_NOTBUSY_SIZE 1
135 #define MMCI_ENDRX_OFFSET 6
136 #define MMCI_ENDRX_SIZE 1
137 #define MMCI_ENDTX_OFFSET 7
138 #define MMCI_ENDTX_SIZE 1
139 #define MMCI_RXBUFF_OFFSET 14
140 #define MMCI_RXBUFF_SIZE 1
141 #define MMCI_TXBUFE_OFFSET 15
142 #define MMCI_TXBUFE_SIZE 1
143 #define MMCI_RINDE_OFFSET 16
144 #define MMCI_RINDE_SIZE 1
145 #define MMCI_RDIRE_OFFSET 17
146 #define MMCI_RDIRE_SIZE 1
147 #define MMCI_RCRCE_OFFSET 18
148 #define MMCI_RCRCE_SIZE 1
149 #define MMCI_RENDE_OFFSET 19
150 #define MMCI_RENDE_SIZE 1
151 #define MMCI_RTOE_OFFSET 20
152 #define MMCI_RTOE_SIZE 1
153 #define MMCI_DCRCE_OFFSET 21
154 #define MMCI_DCRCE_SIZE 1
155 #define MMCI_DTOE_OFFSET 22
156 #define MMCI_DTOE_SIZE 1
157 #define MMCI_OVRE_OFFSET 30
158 #define MMCI_OVRE_SIZE 1
159 #define MMCI_UNRE_OFFSET 31
160 #define MMCI_UNRE_SIZE 1
161
162 /* Constants for DTOMUL */
163 #define MMCI_DTOMUL_1_CYCLE 0
164 #define MMCI_DTOMUL_16_CYCLES 1
165 #define MMCI_DTOMUL_128_CYCLES 2
166 #define MMCI_DTOMUL_256_CYCLES 3
167 #define MMCI_DTOMUL_1024_CYCLES 4
168 #define MMCI_DTOMUL_4096_CYCLES 5
169 #define MMCI_DTOMUL_65536_CYCLES 6
170 #define MMCI_DTOMUL_1048576_CYCLES 7
171
172 /* Constants for RSPTYP */
173 #define MMCI_RSPTYP_NO_RESP 0
174 #define MMCI_RSPTYP_48_BIT_RESP 1
175 #define MMCI_RSPTYP_136_BIT_RESP 2
176
177 /* Constants for SPCMD */
178 #define MMCI_SPCMD_NO_SPEC_CMD 0
179 #define MMCI_SPCMD_INIT_CMD 1
180 #define MMCI_SPCMD_SYNC_CMD 2
181 #define MMCI_SPCMD_INT_CMD 4
182 #define MMCI_SPCMD_INT_RESP 5
183
184 /* Constants for TRCMD */
185 #define MMCI_TRCMD_NO_TRANS 0
186 #define MMCI_TRCMD_START_TRANS 1
187 #define MMCI_TRCMD_STOP_TRANS 2
188
189 /* Constants for TRTYP */
190 #define MMCI_TRTYP_BLOCK 0
191 #define MMCI_TRTYP_MULTI_BLOCK 1
192 #define MMCI_TRTYP_STREAM 2
193
194 /* Bitfields in CFG */
195 #define MMCI_FIFOMODE_OFFSET 0
196 #define MMCI_FIFOMODE_SIZE 1
197 #define MMCI_FERRCTRL_OFFSET 4
198 #define MMCI_FERRCTRL_SIZE 1
199 #define MMCI_HSMODE_OFFSET 8
200 #define MMCI_HSMODE_SIZE 1
201 #define MMCI_LSYNC_OFFSET 12
202 #define MMCI_LSYNC_SIZE 1
203
204 /* Bit manipulation macros */
205 #define MMCI_BIT(name) \
206 (1 << MMCI_##name##_OFFSET)
207 #define MMCI_BF(name,value) \
208 (((value) & ((1 << MMCI_##name##_SIZE) - 1)) \
209 << MMCI_##name##_OFFSET)
210 #define MMCI_BFEXT(name,value) \
211 (((value) >> MMCI_##name##_OFFSET)\
212 & ((1 << MMCI_##name##_SIZE) - 1))
213 #define MMCI_BFINS(name,value,old) \
214 (((old) & ~(((1 << MMCI_##name##_SIZE) - 1) \
215 << MMCI_##name##_OFFSET)) \
216 | MMCI_BF(name,value))
217
218 #endif /* __ATMEL_MCI_H__ */