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