Commit | Line | Data |
---|---|---|
d129bceb | 1 | /* |
70f10482 | 2 | * linux/drivers/mmc/host/sdhci.h - Secure Digital Host Controller Interface driver |
d129bceb | 3 | * |
1978fda8 GC |
4 | * Header file for Host Controller registers and I/O accessors. |
5 | * | |
b69c9058 | 6 | * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved. |
d129bceb PO |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
643f720c PO |
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 (at | |
11 | * your option) any later version. | |
d129bceb | 12 | */ |
1978fda8 GC |
13 | #ifndef __SDHCI_HW_H |
14 | #define __SDHCI_HW_H | |
d129bceb | 15 | |
0c7ad106 | 16 | #include <linux/scatterlist.h> |
4e4141a5 AV |
17 | #include <linux/compiler.h> |
18 | #include <linux/types.h> | |
19 | #include <linux/io.h> | |
0c7ad106 | 20 | |
1978fda8 GC |
21 | #include <linux/mmc/sdhci.h> |
22 | ||
d129bceb PO |
23 | /* |
24 | * Controller registers | |
25 | */ | |
26 | ||
27 | #define SDHCI_DMA_ADDRESS 0x00 | |
28 | ||
29 | #define SDHCI_BLOCK_SIZE 0x04 | |
bab76961 | 30 | #define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF)) |
d129bceb PO |
31 | |
32 | #define SDHCI_BLOCK_COUNT 0x06 | |
33 | ||
34 | #define SDHCI_ARGUMENT 0x08 | |
35 | ||
36 | #define SDHCI_TRANSFER_MODE 0x0C | |
37 | #define SDHCI_TRNS_DMA 0x01 | |
38 | #define SDHCI_TRNS_BLK_CNT_EN 0x02 | |
39 | #define SDHCI_TRNS_ACMD12 0x04 | |
40 | #define SDHCI_TRNS_READ 0x10 | |
41 | #define SDHCI_TRNS_MULTI 0x20 | |
42 | ||
43 | #define SDHCI_COMMAND 0x0E | |
44 | #define SDHCI_CMD_RESP_MASK 0x03 | |
45 | #define SDHCI_CMD_CRC 0x08 | |
46 | #define SDHCI_CMD_INDEX 0x10 | |
47 | #define SDHCI_CMD_DATA 0x20 | |
48 | ||
49 | #define SDHCI_CMD_RESP_NONE 0x00 | |
50 | #define SDHCI_CMD_RESP_LONG 0x01 | |
51 | #define SDHCI_CMD_RESP_SHORT 0x02 | |
52 | #define SDHCI_CMD_RESP_SHORT_BUSY 0x03 | |
53 | ||
54 | #define SDHCI_MAKE_CMD(c, f) (((c & 0xff) << 8) | (f & 0xff)) | |
55 | ||
56 | #define SDHCI_RESPONSE 0x10 | |
57 | ||
58 | #define SDHCI_BUFFER 0x20 | |
59 | ||
60 | #define SDHCI_PRESENT_STATE 0x24 | |
61 | #define SDHCI_CMD_INHIBIT 0x00000001 | |
62 | #define SDHCI_DATA_INHIBIT 0x00000002 | |
63 | #define SDHCI_DOING_WRITE 0x00000100 | |
64 | #define SDHCI_DOING_READ 0x00000200 | |
65 | #define SDHCI_SPACE_AVAILABLE 0x00000400 | |
66 | #define SDHCI_DATA_AVAILABLE 0x00000800 | |
67 | #define SDHCI_CARD_PRESENT 0x00010000 | |
68 | #define SDHCI_WRITE_PROTECT 0x00080000 | |
69 | ||
70 | #define SDHCI_HOST_CONTROL 0x28 | |
71 | #define SDHCI_CTRL_LED 0x01 | |
72 | #define SDHCI_CTRL_4BITBUS 0x02 | |
077df884 | 73 | #define SDHCI_CTRL_HISPD 0x04 |
2134a922 PO |
74 | #define SDHCI_CTRL_DMA_MASK 0x18 |
75 | #define SDHCI_CTRL_SDMA 0x00 | |
76 | #define SDHCI_CTRL_ADMA1 0x08 | |
77 | #define SDHCI_CTRL_ADMA32 0x10 | |
78 | #define SDHCI_CTRL_ADMA64 0x18 | |
ae6d6c92 | 79 | #define SDHCI_CTRL_8BITBUS 0x20 |
d129bceb PO |
80 | |
81 | #define SDHCI_POWER_CONTROL 0x29 | |
146ad66e PO |
82 | #define SDHCI_POWER_ON 0x01 |
83 | #define SDHCI_POWER_180 0x0A | |
84 | #define SDHCI_POWER_300 0x0C | |
85 | #define SDHCI_POWER_330 0x0E | |
d129bceb PO |
86 | |
87 | #define SDHCI_BLOCK_GAP_CONTROL 0x2A | |
88 | ||
2df3b71b | 89 | #define SDHCI_WAKE_UP_CONTROL 0x2B |
5f619704 DD |
90 | #define SDHCI_WAKE_ON_INT 0x01 |
91 | #define SDHCI_WAKE_ON_INSERT 0x02 | |
92 | #define SDHCI_WAKE_ON_REMOVE 0x04 | |
d129bceb PO |
93 | |
94 | #define SDHCI_CLOCK_CONTROL 0x2C | |
95 | #define SDHCI_DIVIDER_SHIFT 8 | |
85105c53 ZG |
96 | #define SDHCI_DIVIDER_HI_SHIFT 6 |
97 | #define SDHCI_DIV_MASK 0xFF | |
98 | #define SDHCI_DIV_MASK_LEN 8 | |
99 | #define SDHCI_DIV_HI_MASK 0x300 | |
d129bceb PO |
100 | #define SDHCI_CLOCK_CARD_EN 0x0004 |
101 | #define SDHCI_CLOCK_INT_STABLE 0x0002 | |
102 | #define SDHCI_CLOCK_INT_EN 0x0001 | |
103 | ||
104 | #define SDHCI_TIMEOUT_CONTROL 0x2E | |
105 | ||
106 | #define SDHCI_SOFTWARE_RESET 0x2F | |
107 | #define SDHCI_RESET_ALL 0x01 | |
108 | #define SDHCI_RESET_CMD 0x02 | |
109 | #define SDHCI_RESET_DATA 0x04 | |
110 | ||
111 | #define SDHCI_INT_STATUS 0x30 | |
112 | #define SDHCI_INT_ENABLE 0x34 | |
113 | #define SDHCI_SIGNAL_ENABLE 0x38 | |
114 | #define SDHCI_INT_RESPONSE 0x00000001 | |
115 | #define SDHCI_INT_DATA_END 0x00000002 | |
116 | #define SDHCI_INT_DMA_END 0x00000008 | |
a406f5a3 PO |
117 | #define SDHCI_INT_SPACE_AVAIL 0x00000010 |
118 | #define SDHCI_INT_DATA_AVAIL 0x00000020 | |
d129bceb PO |
119 | #define SDHCI_INT_CARD_INSERT 0x00000040 |
120 | #define SDHCI_INT_CARD_REMOVE 0x00000080 | |
121 | #define SDHCI_INT_CARD_INT 0x00000100 | |
964f9ce2 | 122 | #define SDHCI_INT_ERROR 0x00008000 |
d129bceb PO |
123 | #define SDHCI_INT_TIMEOUT 0x00010000 |
124 | #define SDHCI_INT_CRC 0x00020000 | |
125 | #define SDHCI_INT_END_BIT 0x00040000 | |
126 | #define SDHCI_INT_INDEX 0x00080000 | |
127 | #define SDHCI_INT_DATA_TIMEOUT 0x00100000 | |
128 | #define SDHCI_INT_DATA_CRC 0x00200000 | |
129 | #define SDHCI_INT_DATA_END_BIT 0x00400000 | |
130 | #define SDHCI_INT_BUS_POWER 0x00800000 | |
131 | #define SDHCI_INT_ACMD12ERR 0x01000000 | |
2134a922 | 132 | #define SDHCI_INT_ADMA_ERROR 0x02000000 |
d129bceb PO |
133 | |
134 | #define SDHCI_INT_NORMAL_MASK 0x00007FFF | |
135 | #define SDHCI_INT_ERROR_MASK 0xFFFF8000 | |
136 | ||
137 | #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \ | |
138 | SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX) | |
139 | #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \ | |
a406f5a3 | 140 | SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \ |
d129bceb | 141 | SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \ |
a751a7d6 | 142 | SDHCI_INT_DATA_END_BIT | SDHCI_INT_ADMA_ERROR) |
7260cf5e | 143 | #define SDHCI_INT_ALL_MASK ((unsigned int)-1) |
d129bceb PO |
144 | |
145 | #define SDHCI_ACMD12_ERR 0x3C | |
146 | ||
147 | /* 3E-3F reserved */ | |
148 | ||
149 | #define SDHCI_CAPABILITIES 0x40 | |
1c8cde92 PO |
150 | #define SDHCI_TIMEOUT_CLK_MASK 0x0000003F |
151 | #define SDHCI_TIMEOUT_CLK_SHIFT 0 | |
152 | #define SDHCI_TIMEOUT_CLK_UNIT 0x00000080 | |
d129bceb | 153 | #define SDHCI_CLOCK_BASE_MASK 0x00003F00 |
c4687d5f | 154 | #define SDHCI_CLOCK_V3_BASE_MASK 0x0000FF00 |
d129bceb | 155 | #define SDHCI_CLOCK_BASE_SHIFT 8 |
1d676e02 PO |
156 | #define SDHCI_MAX_BLOCK_MASK 0x00030000 |
157 | #define SDHCI_MAX_BLOCK_SHIFT 16 | |
2134a922 PO |
158 | #define SDHCI_CAN_DO_ADMA2 0x00080000 |
159 | #define SDHCI_CAN_DO_ADMA1 0x00100000 | |
077df884 | 160 | #define SDHCI_CAN_DO_HISPD 0x00200000 |
a13abc7b | 161 | #define SDHCI_CAN_DO_SDMA 0x00400000 |
146ad66e PO |
162 | #define SDHCI_CAN_VDD_330 0x01000000 |
163 | #define SDHCI_CAN_VDD_300 0x02000000 | |
164 | #define SDHCI_CAN_VDD_180 0x04000000 | |
2134a922 | 165 | #define SDHCI_CAN_64BIT 0x10000000 |
d129bceb PO |
166 | |
167 | /* 44-47 reserved for more caps */ | |
168 | ||
169 | #define SDHCI_MAX_CURRENT 0x48 | |
170 | ||
171 | /* 4C-4F reserved for more max current */ | |
172 | ||
2134a922 PO |
173 | #define SDHCI_SET_ACMD12_ERROR 0x50 |
174 | #define SDHCI_SET_INT_ERROR 0x52 | |
175 | ||
176 | #define SDHCI_ADMA_ERROR 0x54 | |
177 | ||
178 | /* 55-57 reserved */ | |
179 | ||
180 | #define SDHCI_ADMA_ADDRESS 0x58 | |
181 | ||
182 | /* 60-FB reserved */ | |
d129bceb PO |
183 | |
184 | #define SDHCI_SLOT_INT_STATUS 0xFC | |
185 | ||
186 | #define SDHCI_HOST_VERSION 0xFE | |
4a965505 PO |
187 | #define SDHCI_VENDOR_VER_MASK 0xFF00 |
188 | #define SDHCI_VENDOR_VER_SHIFT 8 | |
189 | #define SDHCI_SPEC_VER_MASK 0x00FF | |
190 | #define SDHCI_SPEC_VER_SHIFT 0 | |
2134a922 PO |
191 | #define SDHCI_SPEC_100 0 |
192 | #define SDHCI_SPEC_200 1 | |
85105c53 | 193 | #define SDHCI_SPEC_300 2 |
d129bceb | 194 | |
0397526d ZG |
195 | /* |
196 | * End of controller registers. | |
197 | */ | |
198 | ||
199 | #define SDHCI_MAX_DIV_SPEC_200 256 | |
200 | #define SDHCI_MAX_DIV_SPEC_300 2046 | |
201 | ||
b8c86fc5 | 202 | struct sdhci_ops { |
4e4141a5 | 203 | #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS |
dc297c92 MF |
204 | u32 (*read_l)(struct sdhci_host *host, int reg); |
205 | u16 (*read_w)(struct sdhci_host *host, int reg); | |
206 | u8 (*read_b)(struct sdhci_host *host, int reg); | |
207 | void (*write_l)(struct sdhci_host *host, u32 val, int reg); | |
208 | void (*write_w)(struct sdhci_host *host, u16 val, int reg); | |
209 | void (*write_b)(struct sdhci_host *host, u8 val, int reg); | |
4e4141a5 AV |
210 | #endif |
211 | ||
8114634c AV |
212 | void (*set_clock)(struct sdhci_host *host, unsigned int clock); |
213 | ||
b8c86fc5 | 214 | int (*enable_dma)(struct sdhci_host *host); |
4240ff0a | 215 | unsigned int (*get_max_clock)(struct sdhci_host *host); |
a9e58f25 | 216 | unsigned int (*get_min_clock)(struct sdhci_host *host); |
4240ff0a | 217 | unsigned int (*get_timeout_clock)(struct sdhci_host *host); |
643a81ff PR |
218 | void (*platform_send_init_74_clocks)(struct sdhci_host *host, |
219 | u8 power_mode); | |
2dfb579c | 220 | unsigned int (*get_ro)(struct sdhci_host *host); |
d129bceb | 221 | }; |
b8c86fc5 | 222 | |
4e4141a5 AV |
223 | #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS |
224 | ||
225 | static inline void sdhci_writel(struct sdhci_host *host, u32 val, int reg) | |
226 | { | |
dc297c92 MF |
227 | if (unlikely(host->ops->write_l)) |
228 | host->ops->write_l(host, val, reg); | |
4e4141a5 AV |
229 | else |
230 | writel(val, host->ioaddr + reg); | |
231 | } | |
232 | ||
233 | static inline void sdhci_writew(struct sdhci_host *host, u16 val, int reg) | |
234 | { | |
dc297c92 MF |
235 | if (unlikely(host->ops->write_w)) |
236 | host->ops->write_w(host, val, reg); | |
4e4141a5 AV |
237 | else |
238 | writew(val, host->ioaddr + reg); | |
239 | } | |
240 | ||
241 | static inline void sdhci_writeb(struct sdhci_host *host, u8 val, int reg) | |
242 | { | |
dc297c92 MF |
243 | if (unlikely(host->ops->write_b)) |
244 | host->ops->write_b(host, val, reg); | |
4e4141a5 AV |
245 | else |
246 | writeb(val, host->ioaddr + reg); | |
247 | } | |
248 | ||
249 | static inline u32 sdhci_readl(struct sdhci_host *host, int reg) | |
250 | { | |
dc297c92 MF |
251 | if (unlikely(host->ops->read_l)) |
252 | return host->ops->read_l(host, reg); | |
4e4141a5 AV |
253 | else |
254 | return readl(host->ioaddr + reg); | |
255 | } | |
256 | ||
257 | static inline u16 sdhci_readw(struct sdhci_host *host, int reg) | |
258 | { | |
dc297c92 MF |
259 | if (unlikely(host->ops->read_w)) |
260 | return host->ops->read_w(host, reg); | |
4e4141a5 AV |
261 | else |
262 | return readw(host->ioaddr + reg); | |
263 | } | |
264 | ||
265 | static inline u8 sdhci_readb(struct sdhci_host *host, int reg) | |
266 | { | |
dc297c92 MF |
267 | if (unlikely(host->ops->read_b)) |
268 | return host->ops->read_b(host, reg); | |
4e4141a5 AV |
269 | else |
270 | return readb(host->ioaddr + reg); | |
271 | } | |
272 | ||
273 | #else | |
274 | ||
275 | static inline void sdhci_writel(struct sdhci_host *host, u32 val, int reg) | |
276 | { | |
277 | writel(val, host->ioaddr + reg); | |
278 | } | |
279 | ||
280 | static inline void sdhci_writew(struct sdhci_host *host, u16 val, int reg) | |
281 | { | |
282 | writew(val, host->ioaddr + reg); | |
283 | } | |
284 | ||
285 | static inline void sdhci_writeb(struct sdhci_host *host, u8 val, int reg) | |
286 | { | |
287 | writeb(val, host->ioaddr + reg); | |
288 | } | |
289 | ||
290 | static inline u32 sdhci_readl(struct sdhci_host *host, int reg) | |
291 | { | |
292 | return readl(host->ioaddr + reg); | |
293 | } | |
294 | ||
295 | static inline u16 sdhci_readw(struct sdhci_host *host, int reg) | |
296 | { | |
297 | return readw(host->ioaddr + reg); | |
298 | } | |
299 | ||
300 | static inline u8 sdhci_readb(struct sdhci_host *host, int reg) | |
301 | { | |
302 | return readb(host->ioaddr + reg); | |
303 | } | |
304 | ||
305 | #endif /* CONFIG_MMC_SDHCI_IO_ACCESSORS */ | |
b8c86fc5 PO |
306 | |
307 | extern struct sdhci_host *sdhci_alloc_host(struct device *dev, | |
308 | size_t priv_size); | |
309 | extern void sdhci_free_host(struct sdhci_host *host); | |
310 | ||
311 | static inline void *sdhci_priv(struct sdhci_host *host) | |
312 | { | |
313 | return (void *)host->private; | |
314 | } | |
315 | ||
17866e14 | 316 | extern void sdhci_card_detect(struct sdhci_host *host); |
b8c86fc5 | 317 | extern int sdhci_add_host(struct sdhci_host *host); |
1e72859e | 318 | extern void sdhci_remove_host(struct sdhci_host *host, int dead); |
b8c86fc5 PO |
319 | |
320 | #ifdef CONFIG_PM | |
321 | extern int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state); | |
322 | extern int sdhci_resume_host(struct sdhci_host *host); | |
5f619704 | 323 | extern void sdhci_enable_irq_wakeups(struct sdhci_host *host); |
b8c86fc5 | 324 | #endif |
c0bba0d2 | 325 | |
1978fda8 | 326 | #endif /* __SDHCI_HW_H */ |