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
8int atmel_mci_init(void *regs);
9
10#ifndef __ASSEMBLY__
11
12/*
13 * Structure for struct SoC access.
14 * Names starting with '_' are fillers.
15 */
16typedef 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