2 * Copyright (c) 2008 Alexander Motin <mav@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #define DMA_BLOCK_SIZE 4096
32 #define DMA_BOUNDARY 0 /* DMA reload every 4K */
34 /* Controller doesn't honor resets unless we touch the clock register */
35 #define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1<<0)
36 /* Controller really supports DMA */
37 #define SDHCI_QUIRK_FORCE_DMA (1<<1)
38 /* Controller has unusable DMA engine */
39 #define SDHCI_QUIRK_BROKEN_DMA (1<<2)
40 /* Controller doesn't like to be reset when there is no card inserted. */
41 #define SDHCI_QUIRK_NO_CARD_NO_RESET (1<<3)
42 /* Controller has flaky internal state so reset it on each ios change */
43 #define SDHCI_QUIRK_RESET_ON_IOS (1<<4)
44 /* Controller can only DMA chunk sizes that are a multiple of 32 bits */
45 #define SDHCI_QUIRK_32BIT_DMA_SIZE (1<<5)
46 /* Controller needs to be reset after each request to stay stable */
47 #define SDHCI_QUIRK_RESET_AFTER_REQUEST (1<<6)
48 /* Controller has an off-by-one issue with timeout value */
49 #define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL (1<<7)
50 /* Controller has broken read timings */
51 #define SDHCI_QUIRK_BROKEN_TIMINGS (1<<8)
52 /* Controller needs lowered frequency */
53 #define SDHCI_QUIRK_LOWER_FREQUENCY (1<<9)
54 /* Data timeout is invalid, should use SD clock */
55 #define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK (1<<10)
56 /* Timeout value is invalid, should be overriden */
57 #define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1<<11)
58 /* SDHCI_CAPABILITIES is invalid */
59 #define SDHCI_QUIRK_MISSING_CAPS (1<<12)
60 /* Hardware shifts the 136-bit response, don't do it in software. */
61 #define SDHCI_QUIRK_DONT_SHIFT_RESPONSE (1<<13)
64 * Controller registers
66 #define SDHCI_DMA_ADDRESS 0x00
68 #define SDHCI_BLOCK_SIZE 0x04
69 #define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF))
71 #define SDHCI_BLOCK_COUNT 0x06
73 #define SDHCI_ARGUMENT 0x08
75 #define SDHCI_TRANSFER_MODE 0x0C
76 #define SDHCI_TRNS_DMA 0x01
77 #define SDHCI_TRNS_BLK_CNT_EN 0x02
78 #define SDHCI_TRNS_ACMD12 0x04
79 #define SDHCI_TRNS_READ 0x10
80 #define SDHCI_TRNS_MULTI 0x20
82 #define SDHCI_COMMAND_FLAGS 0x0E
83 #define SDHCI_CMD_RESP_NONE 0x00
84 #define SDHCI_CMD_RESP_LONG 0x01
85 #define SDHCI_CMD_RESP_SHORT 0x02
86 #define SDHCI_CMD_RESP_SHORT_BUSY 0x03
87 #define SDHCI_CMD_RESP_MASK 0x03
88 #define SDHCI_CMD_CRC 0x08
89 #define SDHCI_CMD_INDEX 0x10
90 #define SDHCI_CMD_DATA 0x20
91 #define SDHCI_CMD_TYPE_NORMAL 0x00
92 #define SDHCI_CMD_TYPE_SUSPEND 0x40
93 #define SDHCI_CMD_TYPE_RESUME 0x80
94 #define SDHCI_CMD_TYPE_ABORT 0xc0
95 #define SDHCI_CMD_TYPE_MASK 0xc0
97 #define SDHCI_COMMAND 0x0F
99 #define SDHCI_RESPONSE 0x10
101 #define SDHCI_BUFFER 0x20
103 #define SDHCI_PRESENT_STATE 0x24
104 #define SDHCI_CMD_INHIBIT 0x00000001
105 #define SDHCI_DAT_INHIBIT 0x00000002
106 #define SDHCI_DAT_ACTIVE 0x00000004
107 #define SDHCI_RETUNE_REQUEST 0x00000008
108 #define SDHCI_DOING_WRITE 0x00000100
109 #define SDHCI_DOING_READ 0x00000200
110 #define SDHCI_SPACE_AVAILABLE 0x00000400
111 #define SDHCI_DATA_AVAILABLE 0x00000800
112 #define SDHCI_CARD_PRESENT 0x00010000
113 #define SDHCI_CARD_STABLE 0x00020000
114 #define SDHCI_CARD_PIN 0x00040000
115 #define SDHCI_WRITE_PROTECT 0x00080000
116 #define SDHCI_STATE_DAT_MASK 0x00f00000
117 #define SDHCI_STATE_CMD 0x01000000
119 #define SDHCI_HOST_CONTROL 0x28
120 #define SDHCI_CTRL_LED 0x01
121 #define SDHCI_CTRL_4BITBUS 0x02
122 #define SDHCI_CTRL_HISPD 0x04
123 #define SDHCI_CTRL_SDMA 0x08
124 #define SDHCI_CTRL_ADMA2 0x10
125 #define SDHCI_CTRL_ADMA264 0x18
126 #define SDHCI_CTRL_DMA_MASK 0x18
127 #define SDHCI_CTRL_8BITBUS 0x20
128 #define SDHCI_CTRL_CARD_DET 0x40
129 #define SDHCI_CTRL_FORCE_CARD 0x80
131 #define SDHCI_POWER_CONTROL 0x29
132 #define SDHCI_POWER_ON 0x01
133 #define SDHCI_POWER_180 0x0A
134 #define SDHCI_POWER_300 0x0C
135 #define SDHCI_POWER_330 0x0E
137 #define SDHCI_BLOCK_GAP_CONTROL 0x2A
139 #define SDHCI_WAKE_UP_CONTROL 0x2B
141 #define SDHCI_CLOCK_CONTROL 0x2C
142 #define SDHCI_DIVIDER_MASK 0xff
143 #define SDHCI_DIVIDER_MASK_LEN 8
144 #define SDHCI_DIVIDER_SHIFT 8
145 #define SDHCI_DIVIDER_HI_MASK 3
146 #define SDHCI_DIVIDER_HI_SHIFT 6
147 #define SDHCI_CLOCK_CARD_EN 0x0004
148 #define SDHCI_CLOCK_INT_STABLE 0x0002
149 #define SDHCI_CLOCK_INT_EN 0x0001
151 #define SDHCI_TIMEOUT_CONTROL 0x2E
153 #define SDHCI_SOFTWARE_RESET 0x2F
154 #define SDHCI_RESET_ALL 0x01
155 #define SDHCI_RESET_CMD 0x02
156 #define SDHCI_RESET_DATA 0x04
158 #define SDHCI_INT_STATUS 0x30
159 #define SDHCI_INT_ENABLE 0x34
160 #define SDHCI_SIGNAL_ENABLE 0x38
161 #define SDHCI_INT_RESPONSE 0x00000001
162 #define SDHCI_INT_DATA_END 0x00000002
163 #define SDHCI_INT_BLOCK_GAP 0x00000004
164 #define SDHCI_INT_DMA_END 0x00000008
165 #define SDHCI_INT_SPACE_AVAIL 0x00000010
166 #define SDHCI_INT_DATA_AVAIL 0x00000020
167 #define SDHCI_INT_CARD_INSERT 0x00000040
168 #define SDHCI_INT_CARD_REMOVE 0x00000080
169 #define SDHCI_INT_CARD_INT 0x00000100
170 #define SDHCI_INT_ERROR 0x00008000
171 #define SDHCI_INT_TIMEOUT 0x00010000
172 #define SDHCI_INT_CRC 0x00020000
173 #define SDHCI_INT_END_BIT 0x00040000
174 #define SDHCI_INT_INDEX 0x00080000
175 #define SDHCI_INT_DATA_TIMEOUT 0x00100000
176 #define SDHCI_INT_DATA_CRC 0x00200000
177 #define SDHCI_INT_DATA_END_BIT 0x00400000
178 #define SDHCI_INT_BUS_POWER 0x00800000
179 #define SDHCI_INT_ACMD12ERR 0x01000000
180 #define SDHCI_INT_ADMAERR 0x02000000
182 #define SDHCI_INT_NORMAL_MASK 0x00007FFF
183 #define SDHCI_INT_ERROR_MASK 0xFFFF8000
185 #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \
186 SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX)
187 #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \
188 SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \
189 SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \
190 SDHCI_INT_DATA_END_BIT)
192 #define SDHCI_ACMD12_ERR 0x3C
194 #define SDHCI_CAPABILITIES 0x40
195 #define SDHCI_TIMEOUT_CLK_MASK 0x0000003F
196 #define SDHCI_TIMEOUT_CLK_SHIFT 0
197 #define SDHCI_TIMEOUT_CLK_UNIT 0x00000080
198 #define SDHCI_CLOCK_BASE_MASK 0x00003F00
199 #define SDHCI_CLOCK_V3_BASE_MASK 0x0000FF00
200 #define SDHCI_CLOCK_BASE_SHIFT 8
201 #define SDHCI_MAX_BLOCK_MASK 0x00030000
202 #define SDHCI_MAX_BLOCK_SHIFT 16
203 #define SDHCI_CAN_DO_8BITBUS 0x00040000
204 #define SDHCI_CAN_DO_ADMA2 0x00080000
205 #define SDHCI_CAN_DO_HISPD 0x00200000
206 #define SDHCI_CAN_DO_DMA 0x00400000
207 #define SDHCI_CAN_DO_SUSPEND 0x00800000
208 #define SDHCI_CAN_VDD_330 0x01000000
209 #define SDHCI_CAN_VDD_300 0x02000000
210 #define SDHCI_CAN_VDD_180 0x04000000
211 #define SDHCI_CAN_DO_64BIT 0x10000000
213 #define SDHCI_MAX_CURRENT 0x48
215 #define SDHCI_SLOT_INT_STATUS 0xFC
217 #define SDHCI_HOST_VERSION 0xFE
218 #define SDHCI_VENDOR_VER_MASK 0xFF00
219 #define SDHCI_VENDOR_VER_SHIFT 8
220 #define SDHCI_SPEC_VER_MASK 0x00FF
221 #define SDHCI_SPEC_VER_SHIFT 0
222 #define SDHCI_SPEC_100 0
223 #define SDHCI_SPEC_200 1
224 #define SDHCI_SPEC_300 2
226 SYSCTL_DECL(_hw_sdhci);
229 u_int quirks; /* Chip specific quirks */
230 u_int caps; /* Override SDHCI_CAPABILITIES */
231 device_t bus; /* Bus device */
232 device_t dev; /* Slot device */
233 u_char num; /* Slot number */
234 u_char opt; /* Slot options */
235 #define SDHCI_HAVE_DMA 1
236 #define SDHCI_PLATFORM_TRANSFER 2
238 uint32_t max_clk; /* Max possible freq */
239 uint32_t timeout_clk; /* Timeout freq */
240 bus_dma_tag_t dmatag;
243 bus_addr_t paddr; /* DMA buffer address */
244 struct task card_task; /* Card presence check task */
245 struct callout card_callout; /* Card insert delay callout */
246 struct callout timeout_callout;/* Card command/data response timeout */
247 struct mmc_host host; /* Host parameters */
248 struct mmc_request *req; /* Current request */
249 struct mmc_command *curcmd; /* Current command of current request */
251 uint32_t intmask; /* Current interrupt mask */
252 uint32_t clock; /* Current clock freq. */
253 size_t offset; /* Data buffer offset */
254 uint8_t hostctrl; /* Current host control register */
255 u_char power; /* Current power */
256 u_char bus_busy; /* Bus busy status */
257 u_char cmd_done; /* CMD command part done flag */
258 u_char data_done; /* DAT command part done flag */
259 u_char flags; /* Request execution flags */
260 #define CMD_STARTED 1
261 #define STOP_STARTED 2
262 #define SDHCI_USE_DMA 4 /* Use DMA for this req. */
263 #define PLATFORM_DATA_STARTED 8 /* Data transfer is handled by platform */
264 struct mtx mtx; /* Slot mutex */
267 int sdhci_generic_read_ivar(device_t bus, device_t child, int which, uintptr_t *result);
268 int sdhci_generic_write_ivar(device_t bus, device_t child, int which, uintptr_t value);
269 int sdhci_init_slot(device_t dev, struct sdhci_slot *slot, int num);
270 void sdhci_start_slot(struct sdhci_slot *slot);
271 /* performs generic clean-up for platform transfers */
272 void sdhci_finish_data(struct sdhci_slot *slot);
273 int sdhci_cleanup_slot(struct sdhci_slot *slot);
274 int sdhci_generic_suspend(struct sdhci_slot *slot);
275 int sdhci_generic_resume(struct sdhci_slot *slot);
276 int sdhci_generic_update_ios(device_t brdev, device_t reqdev);
277 int sdhci_generic_request(device_t brdev, device_t reqdev, struct mmc_request *req);
278 int sdhci_generic_get_ro(device_t brdev, device_t reqdev);
279 int sdhci_generic_acquire_host(device_t brdev, device_t reqdev);
280 int sdhci_generic_release_host(device_t brdev, device_t reqdev);
281 void sdhci_generic_intr(struct sdhci_slot *slot);
282 uint32_t sdhci_generic_min_freq(device_t brdev, struct sdhci_slot *slot);
284 #endif /* __SDHCI_H__ */