xref: /openbmc/u-boot/include/atmel_mci.h (revision bfc37f3c)
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__ */
219