| blob | bb9e5de76ae9ce033c383350e047b6785801266f |
1 /*
2 * Synopsys DesignWare Multimedia Card Interface driver
3 * (Based on NXP driver for lpc 31xx)
4 *
5 * Copyright (C) 2009 NXP Semiconductors
6 * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
14 #ifndef _DW_MMC_H_
15 #define _DW_MMC_H_
17 #define SDMMC_CTRL 0x000
18 #define SDMMC_PWREN 0x004
19 #define SDMMC_CLKDIV 0x008
20 #define SDMMC_CLKSRC 0x00c
21 #define SDMMC_CLKENA 0x010
22 #define SDMMC_TMOUT 0x014
23 #define SDMMC_CTYPE 0x018
24 #define SDMMC_BLKSIZ 0x01c
25 #define SDMMC_BYTCNT 0x020
26 #define SDMMC_INTMASK 0x024
27 #define SDMMC_CMDARG 0x028
28 #define SDMMC_CMD 0x02c
29 #define SDMMC_RESP0 0x030
30 #define SDMMC_RESP1 0x034
31 #define SDMMC_RESP2 0x038
32 #define SDMMC_RESP3 0x03c
33 #define SDMMC_MINTSTS 0x040
34 #define SDMMC_RINTSTS 0x044
35 #define SDMMC_STATUS 0x048
36 #define SDMMC_FIFOTH 0x04c
37 #define SDMMC_CDETECT 0x050
38 #define SDMMC_WRTPRT 0x054
39 #define SDMMC_GPIO 0x058
40 #define SDMMC_TCBCNT 0x05c
41 #define SDMMC_TBBCNT 0x060
42 #define SDMMC_DEBNCE 0x064
43 #define SDMMC_USRID 0x068
44 #define SDMMC_VERID 0x06c
45 #define SDMMC_HCON 0x070
46 #define SDMMC_UHS_REG 0x074
47 #define SDMMC_BMOD 0x080
48 #define SDMMC_PLDMND 0x084
49 #define SDMMC_DBADDR 0x088
50 #define SDMMC_IDSTS 0x08c
51 #define SDMMC_IDINTEN 0x090
52 #define SDMMC_DSCADDR 0x094
53 #define SDMMC_BUFADDR 0x098
54 #define SDMMC_DATA 0x100
56 /* shift bit field */
57 #define _SBF(f, v) ((v) << (f))
59 /* Control register defines */
60 #define SDMMC_CTRL_USE_IDMAC BIT(25)
61 #define SDMMC_CTRL_CEATA_INT_EN BIT(11)
62 #define SDMMC_CTRL_SEND_AS_CCSD BIT(10)
63 #define SDMMC_CTRL_SEND_CCSD BIT(9)
64 #define SDMMC_CTRL_ABRT_READ_DATA BIT(8)
65 #define SDMMC_CTRL_SEND_IRQ_RESP BIT(7)
66 #define SDMMC_CTRL_READ_WAIT BIT(6)
67 #define SDMMC_CTRL_DMA_ENABLE BIT(5)
68 #define SDMMC_CTRL_INT_ENABLE BIT(4)
69 #define SDMMC_CTRL_DMA_RESET BIT(2)
70 #define SDMMC_CTRL_FIFO_RESET BIT(1)
71 #define SDMMC_CTRL_RESET BIT(0)
72 /* Clock Enable register defines */
73 #define SDMMC_CLKEN_LOW_PWR BIT(16)
74 #define SDMMC_CLKEN_ENABLE BIT(0)
75 /* time-out register defines */
76 #define SDMMC_TMOUT_DATA(n) _SBF(8, (n))
77 #define SDMMC_TMOUT_DATA_MSK 0xFFFFFF00
78 #define SDMMC_TMOUT_RESP(n) ((n) & 0xFF)
79 #define SDMMC_TMOUT_RESP_MSK 0xFF
80 /* card-type register defines */
81 #define SDMMC_CTYPE_8BIT BIT(16)
82 #define SDMMC_CTYPE_4BIT BIT(0)
83 #define SDMMC_CTYPE_1BIT 0
84 /* Interrupt status & mask register defines */
85 #define SDMMC_INT_SDIO BIT(16)
86 #define SDMMC_INT_EBE BIT(15)
87 #define SDMMC_INT_ACD BIT(14)
88 #define SDMMC_INT_SBE BIT(13)
89 #define SDMMC_INT_HLE BIT(12)
90 #define SDMMC_INT_FRUN BIT(11)
91 #define SDMMC_INT_HTO BIT(10)
92 #define SDMMC_INT_DTO BIT(9)
93 #define SDMMC_INT_RTO BIT(8)
94 #define SDMMC_INT_DCRC BIT(7)
95 #define SDMMC_INT_RCRC BIT(6)
96 #define SDMMC_INT_RXDR BIT(5)
97 #define SDMMC_INT_TXDR BIT(4)
98 #define SDMMC_INT_DATA_OVER BIT(3)
99 #define SDMMC_INT_CMD_DONE BIT(2)
100 #define SDMMC_INT_RESP_ERR BIT(1)
101 #define SDMMC_INT_CD BIT(0)
102 #define SDMMC_INT_ERROR 0xbfc2
103 /* Command register defines */
104 #define SDMMC_CMD_START BIT(31)
105 #define SDMMC_CMD_CCS_EXP BIT(23)
106 #define SDMMC_CMD_CEATA_RD BIT(22)
107 #define SDMMC_CMD_UPD_CLK BIT(21)
108 #define SDMMC_CMD_INIT BIT(15)
109 #define SDMMC_CMD_STOP BIT(14)
110 #define SDMMC_CMD_PRV_DAT_WAIT BIT(13)
111 #define SDMMC_CMD_SEND_STOP BIT(12)
112 #define SDMMC_CMD_STRM_MODE BIT(11)
113 #define SDMMC_CMD_DAT_WR BIT(10)
114 #define SDMMC_CMD_DAT_EXP BIT(9)
115 #define SDMMC_CMD_RESP_CRC BIT(8)
116 #define SDMMC_CMD_RESP_LONG BIT(7)
117 #define SDMMC_CMD_RESP_EXP BIT(6)
118 #define SDMMC_CMD_INDX(n) ((n) & 0x1F)
119 /* Status register defines */
120 #define SDMMC_GET_FCNT(x) (((x)>>17) & 0x1FF)
121 #define SDMMC_FIFO_SZ 32
122 /* Internal DMAC interrupt defines */
123 #define SDMMC_IDMAC_INT_AI BIT(9)
124 #define SDMMC_IDMAC_INT_NI BIT(8)
125 #define SDMMC_IDMAC_INT_CES BIT(5)
126 #define SDMMC_IDMAC_INT_DU BIT(4)
127 #define SDMMC_IDMAC_INT_FBE BIT(2)
128 #define SDMMC_IDMAC_INT_RI BIT(1)
129 #define SDMMC_IDMAC_INT_TI BIT(0)
130 /* Internal DMAC bus mode bits */
131 #define SDMMC_IDMAC_ENABLE BIT(7)
132 #define SDMMC_IDMAC_FB BIT(1)
133 #define SDMMC_IDMAC_SWRESET BIT(0)
135 /* Register access macros */
136 #define mci_readl(dev, reg) \
137 __raw_readl((dev)->regs + SDMMC_##reg)
138 #define mci_writel(dev, reg, value) \
139 __raw_writel((value), (dev)->regs + SDMMC_##reg)
141 /* 16-bit FIFO access macros */
142 #define mci_readw(dev, reg) \
143 __raw_readw((dev)->regs + SDMMC_##reg)
144 #define mci_writew(dev, reg, value) \
145 __raw_writew((value), (dev)->regs + SDMMC_##reg)
147 /* 64-bit FIFO access macros */
148 #ifdef readq
149 #define mci_readq(dev, reg) \
150 __raw_readq((dev)->regs + SDMMC_##reg)
151 #define mci_writeq(dev, reg, value) \
152 __raw_writeq((value), (dev)->regs + SDMMC_##reg)
153 #else
154 /*
155 * Dummy readq implementation for architectures that don't define it.
156 *
157 * We would assume that none of these architectures would configure
158 * the IP block with a 64bit FIFO width, so this code will never be
159 * executed on those machines. Defining these macros here keeps the
160 * rest of the code free from ifdefs.
161 */
162 #define mci_readq(dev, reg) \
163 (*(volatile u64 __force *)((dev)->regs + SDMMC_##reg))
164 #define mci_writeq(dev, reg, value) \
165 (*(volatile u64 __force *)((dev)->regs + SDMMC_##reg) = (value))
166 #endif