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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
af62a557 LW |
2 | /* |
3 | * Copyright 2011, Marvell Semiconductor Inc. | |
4 | * Lei Wen <leiwen@marvell.com> | |
5 | * | |
af62a557 LW |
6 | * Back ported to the 8xx platform (from the 8260 platform) by |
7 | * Murray.Jensen@cmst.csiro.au, 27-Jan-01. | |
8 | */ | |
9 | ||
10 | #include <common.h> | |
2a809093 | 11 | #include <errno.h> |
af62a557 LW |
12 | #include <malloc.h> |
13 | #include <mmc.h> | |
14 | #include <sdhci.h> | |
15 | ||
492d3223 SR |
16 | #if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER) |
17 | void *aligned_buffer = (void *)CONFIG_FIXED_SDHCI_ALIGNED_BUFFER; | |
18 | #else | |
af62a557 | 19 | void *aligned_buffer; |
492d3223 | 20 | #endif |
af62a557 LW |
21 | |
22 | static void sdhci_reset(struct sdhci_host *host, u8 mask) | |
23 | { | |
24 | unsigned long timeout; | |
25 | ||
26 | /* Wait max 100 ms */ | |
27 | timeout = 100; | |
28 | sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET); | |
29 | while (sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask) { | |
30 | if (timeout == 0) { | |
30e6d979 DR |
31 | printf("%s: Reset 0x%x never completed.\n", |
32 | __func__, (int)mask); | |
af62a557 LW |
33 | return; |
34 | } | |
35 | timeout--; | |
36 | udelay(1000); | |
37 | } | |
38 | } | |
39 | ||
40 | static void sdhci_cmd_done(struct sdhci_host *host, struct mmc_cmd *cmd) | |
41 | { | |
42 | int i; | |
43 | if (cmd->resp_type & MMC_RSP_136) { | |
44 | /* CRC is stripped so we need to do some shifting. */ | |
45 | for (i = 0; i < 4; i++) { | |
46 | cmd->response[i] = sdhci_readl(host, | |
47 | SDHCI_RESPONSE + (3-i)*4) << 8; | |
48 | if (i != 3) | |
49 | cmd->response[i] |= sdhci_readb(host, | |
50 | SDHCI_RESPONSE + (3-i)*4-1); | |
51 | } | |
52 | } else { | |
53 | cmd->response[0] = sdhci_readl(host, SDHCI_RESPONSE); | |
54 | } | |
55 | } | |
56 | ||
57 | static void sdhci_transfer_pio(struct sdhci_host *host, struct mmc_data *data) | |
58 | { | |
59 | int i; | |
60 | char *offs; | |
61 | for (i = 0; i < data->blocksize; i += 4) { | |
62 | offs = data->dest + i; | |
63 | if (data->flags == MMC_DATA_READ) | |
64 | *(u32 *)offs = sdhci_readl(host, SDHCI_BUFFER); | |
65 | else | |
66 | sdhci_writel(host, *(u32 *)offs, SDHCI_BUFFER); | |
67 | } | |
68 | } | |
69 | ||
70 | static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data, | |
71 | unsigned int start_addr) | |
72 | { | |
a004abde | 73 | unsigned int stat, rdy, mask, timeout, block = 0; |
7dde50d7 | 74 | bool transfer_done = false; |
45a68fe2 | 75 | #ifdef CONFIG_MMC_SDHCI_SDMA |
804c7f42 | 76 | unsigned char ctrl; |
2c011847 | 77 | ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); |
804c7f42 | 78 | ctrl &= ~SDHCI_CTRL_DMA_MASK; |
2c011847 | 79 | sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); |
804c7f42 | 80 | #endif |
af62a557 | 81 | |
5d48e422 | 82 | timeout = 1000000; |
af62a557 LW |
83 | rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL; |
84 | mask = SDHCI_DATA_AVAILABLE | SDHCI_SPACE_AVAILABLE; | |
85 | do { | |
86 | stat = sdhci_readl(host, SDHCI_INT_STATUS); | |
87 | if (stat & SDHCI_INT_ERROR) { | |
61f2e5ee MY |
88 | pr_debug("%s: Error detected in status(0x%X)!\n", |
89 | __func__, stat); | |
2cb5d67c | 90 | return -EIO; |
af62a557 | 91 | } |
7dde50d7 | 92 | if (!transfer_done && (stat & rdy)) { |
af62a557 LW |
93 | if (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & mask)) |
94 | continue; | |
95 | sdhci_writel(host, rdy, SDHCI_INT_STATUS); | |
96 | sdhci_transfer_pio(host, data); | |
97 | data->dest += data->blocksize; | |
7dde50d7 AD |
98 | if (++block >= data->blocks) { |
99 | /* Keep looping until the SDHCI_INT_DATA_END is | |
100 | * cleared, even if we finished sending all the | |
101 | * blocks. | |
102 | */ | |
103 | transfer_done = true; | |
104 | continue; | |
105 | } | |
af62a557 | 106 | } |
45a68fe2 | 107 | #ifdef CONFIG_MMC_SDHCI_SDMA |
7dde50d7 | 108 | if (!transfer_done && (stat & SDHCI_INT_DMA_END)) { |
af62a557 | 109 | sdhci_writel(host, SDHCI_INT_DMA_END, SDHCI_INT_STATUS); |
3e81c772 | 110 | start_addr &= ~(SDHCI_DEFAULT_BOUNDARY_SIZE - 1); |
af62a557 LW |
111 | start_addr += SDHCI_DEFAULT_BOUNDARY_SIZE; |
112 | sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS); | |
113 | } | |
114 | #endif | |
a004abde LW |
115 | if (timeout-- > 0) |
116 | udelay(10); | |
117 | else { | |
30e6d979 | 118 | printf("%s: Transfer data timeout\n", __func__); |
2cb5d67c | 119 | return -ETIMEDOUT; |
a004abde | 120 | } |
af62a557 LW |
121 | } while (!(stat & SDHCI_INT_DATA_END)); |
122 | return 0; | |
123 | } | |
124 | ||
56b34bc6 PM |
125 | /* |
126 | * No command will be sent by driver if card is busy, so driver must wait | |
127 | * for card ready state. | |
128 | * Every time when card is busy after timeout then (last) timeout value will be | |
129 | * increased twice but only if it doesn't exceed global defined maximum. | |
65a25b20 | 130 | * Each function call will use last timeout value. |
56b34bc6 | 131 | */ |
65a25b20 | 132 | #define SDHCI_CMD_MAX_TIMEOUT 3200 |
d8ce77b2 | 133 | #define SDHCI_CMD_DEFAULT_TIMEOUT 100 |
d90bb439 | 134 | #define SDHCI_READ_STATUS_TIMEOUT 1000 |
56b34bc6 | 135 | |
e7881d85 | 136 | #ifdef CONFIG_DM_MMC |
ef1e4eda SG |
137 | static int sdhci_send_command(struct udevice *dev, struct mmc_cmd *cmd, |
138 | struct mmc_data *data) | |
139 | { | |
140 | struct mmc *mmc = mmc_get_mmc_dev(dev); | |
141 | ||
142 | #else | |
6588c78b | 143 | static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, |
ef1e4eda | 144 | struct mmc_data *data) |
af62a557 | 145 | { |
ef1e4eda | 146 | #endif |
93bfd616 | 147 | struct sdhci_host *host = mmc->priv; |
af62a557 LW |
148 | unsigned int stat = 0; |
149 | int ret = 0; | |
150 | int trans_bytes = 0, is_aligned = 1; | |
151 | u32 mask, flags, mode; | |
56b34bc6 | 152 | unsigned int time = 0, start_addr = 0; |
19d2e342 | 153 | int mmc_dev = mmc_get_blk_desc(mmc)->devnum; |
29905a45 | 154 | unsigned start = get_timer(0); |
af62a557 | 155 | |
56b34bc6 | 156 | /* Timeout unit - ms */ |
d8ce77b2 | 157 | static unsigned int cmd_timeout = SDHCI_CMD_DEFAULT_TIMEOUT; |
af62a557 | 158 | |
af62a557 LW |
159 | mask = SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT; |
160 | ||
161 | /* We shouldn't wait for data inihibit for stop commands, even | |
162 | though they might use busy signaling */ | |
163 | if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION) | |
164 | mask &= ~SDHCI_DATA_INHIBIT; | |
165 | ||
166 | while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) { | |
56b34bc6 | 167 | if (time >= cmd_timeout) { |
30e6d979 | 168 | printf("%s: MMC: %d busy ", __func__, mmc_dev); |
65a25b20 | 169 | if (2 * cmd_timeout <= SDHCI_CMD_MAX_TIMEOUT) { |
56b34bc6 PM |
170 | cmd_timeout += cmd_timeout; |
171 | printf("timeout increasing to: %u ms.\n", | |
172 | cmd_timeout); | |
173 | } else { | |
174 | puts("timeout.\n"); | |
915ffa52 | 175 | return -ECOMM; |
56b34bc6 | 176 | } |
af62a557 | 177 | } |
56b34bc6 | 178 | time++; |
af62a557 LW |
179 | udelay(1000); |
180 | } | |
181 | ||
713e6815 JRO |
182 | sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_INT_STATUS); |
183 | ||
af62a557 LW |
184 | mask = SDHCI_INT_RESPONSE; |
185 | if (!(cmd->resp_type & MMC_RSP_PRESENT)) | |
186 | flags = SDHCI_CMD_RESP_NONE; | |
187 | else if (cmd->resp_type & MMC_RSP_136) | |
188 | flags = SDHCI_CMD_RESP_LONG; | |
189 | else if (cmd->resp_type & MMC_RSP_BUSY) { | |
190 | flags = SDHCI_CMD_RESP_SHORT_BUSY; | |
17ea3c86 JC |
191 | if (data) |
192 | mask |= SDHCI_INT_DATA_END; | |
af62a557 LW |
193 | } else |
194 | flags = SDHCI_CMD_RESP_SHORT; | |
195 | ||
196 | if (cmd->resp_type & MMC_RSP_CRC) | |
197 | flags |= SDHCI_CMD_CRC; | |
198 | if (cmd->resp_type & MMC_RSP_OPCODE) | |
199 | flags |= SDHCI_CMD_INDEX; | |
200 | if (data) | |
201 | flags |= SDHCI_CMD_DATA; | |
202 | ||
30e6d979 | 203 | /* Set Transfer mode regarding to data flag */ |
bb7b4ef3 | 204 | if (data) { |
af62a557 LW |
205 | sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL); |
206 | mode = SDHCI_TRNS_BLK_CNT_EN; | |
207 | trans_bytes = data->blocks * data->blocksize; | |
208 | if (data->blocks > 1) | |
209 | mode |= SDHCI_TRNS_MULTI; | |
210 | ||
211 | if (data->flags == MMC_DATA_READ) | |
212 | mode |= SDHCI_TRNS_READ; | |
213 | ||
45a68fe2 | 214 | #ifdef CONFIG_MMC_SDHCI_SDMA |
af62a557 | 215 | if (data->flags == MMC_DATA_READ) |
3c1fcb77 | 216 | start_addr = (unsigned long)data->dest; |
af62a557 | 217 | else |
3c1fcb77 | 218 | start_addr = (unsigned long)data->src; |
af62a557 LW |
219 | if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && |
220 | (start_addr & 0x7) != 0x0) { | |
221 | is_aligned = 0; | |
3c1fcb77 | 222 | start_addr = (unsigned long)aligned_buffer; |
af62a557 LW |
223 | if (data->flags != MMC_DATA_READ) |
224 | memcpy(aligned_buffer, data->src, trans_bytes); | |
225 | } | |
226 | ||
492d3223 SR |
227 | #if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER) |
228 | /* | |
229 | * Always use this bounce-buffer when | |
230 | * CONFIG_FIXED_SDHCI_ALIGNED_BUFFER is defined | |
231 | */ | |
232 | is_aligned = 0; | |
233 | start_addr = (unsigned long)aligned_buffer; | |
234 | if (data->flags != MMC_DATA_READ) | |
235 | memcpy(aligned_buffer, data->src, trans_bytes); | |
236 | #endif | |
237 | ||
af62a557 LW |
238 | sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS); |
239 | mode |= SDHCI_TRNS_DMA; | |
240 | #endif | |
241 | sdhci_writew(host, SDHCI_MAKE_BLKSZ(SDHCI_DEFAULT_BOUNDARY_ARG, | |
242 | data->blocksize), | |
243 | SDHCI_BLOCK_SIZE); | |
244 | sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); | |
245 | sdhci_writew(host, mode, SDHCI_TRANSFER_MODE); | |
5e1c23cd KL |
246 | } else if (cmd->resp_type & MMC_RSP_BUSY) { |
247 | sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL); | |
af62a557 LW |
248 | } |
249 | ||
250 | sdhci_writel(host, cmd->cmdarg, SDHCI_ARGUMENT); | |
45a68fe2 | 251 | #ifdef CONFIG_MMC_SDHCI_SDMA |
bb7b4ef3 | 252 | if (data) { |
fa7720b2 KL |
253 | trans_bytes = ALIGN(trans_bytes, CONFIG_SYS_CACHELINE_SIZE); |
254 | flush_cache(start_addr, trans_bytes); | |
255 | } | |
af62a557 LW |
256 | #endif |
257 | sdhci_writew(host, SDHCI_MAKE_CMD(cmd->cmdidx, flags), SDHCI_COMMAND); | |
29905a45 | 258 | start = get_timer(0); |
af62a557 LW |
259 | do { |
260 | stat = sdhci_readl(host, SDHCI_INT_STATUS); | |
261 | if (stat & SDHCI_INT_ERROR) | |
262 | break; | |
af62a557 | 263 | |
bae4a1fd MY |
264 | if (get_timer(start) >= SDHCI_READ_STATUS_TIMEOUT) { |
265 | if (host->quirks & SDHCI_QUIRK_BROKEN_R1B) { | |
266 | return 0; | |
267 | } else { | |
268 | printf("%s: Timeout for status update!\n", | |
269 | __func__); | |
915ffa52 | 270 | return -ETIMEDOUT; |
bae4a1fd | 271 | } |
3a638320 | 272 | } |
bae4a1fd | 273 | } while ((stat & mask) != mask); |
3a638320 | 274 | |
af62a557 LW |
275 | if ((stat & (SDHCI_INT_ERROR | mask)) == mask) { |
276 | sdhci_cmd_done(host, cmd); | |
277 | sdhci_writel(host, mask, SDHCI_INT_STATUS); | |
278 | } else | |
279 | ret = -1; | |
280 | ||
281 | if (!ret && data) | |
282 | ret = sdhci_transfer_data(host, data, start_addr); | |
283 | ||
13243f2e TB |
284 | if (host->quirks & SDHCI_QUIRK_WAIT_SEND_CMD) |
285 | udelay(1000); | |
286 | ||
af62a557 LW |
287 | stat = sdhci_readl(host, SDHCI_INT_STATUS); |
288 | sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_INT_STATUS); | |
289 | if (!ret) { | |
290 | if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && | |
291 | !is_aligned && (data->flags == MMC_DATA_READ)) | |
292 | memcpy(data->dest, aligned_buffer, trans_bytes); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | sdhci_reset(host, SDHCI_RESET_CMD); | |
297 | sdhci_reset(host, SDHCI_RESET_DATA); | |
298 | if (stat & SDHCI_INT_TIMEOUT) | |
915ffa52 | 299 | return -ETIMEDOUT; |
af62a557 | 300 | else |
915ffa52 | 301 | return -ECOMM; |
af62a557 LW |
302 | } |
303 | ||
304 | static int sdhci_set_clock(struct mmc *mmc, unsigned int clock) | |
305 | { | |
93bfd616 | 306 | struct sdhci_host *host = mmc->priv; |
899fb9e3 | 307 | unsigned int div, clk = 0, timeout; |
af62a557 | 308 | |
79667b7b WY |
309 | /* Wait max 20 ms */ |
310 | timeout = 200; | |
311 | while (sdhci_readl(host, SDHCI_PRESENT_STATE) & | |
312 | (SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT)) { | |
313 | if (timeout == 0) { | |
314 | printf("%s: Timeout to wait cmd & data inhibit\n", | |
315 | __func__); | |
2cb5d67c | 316 | return -EBUSY; |
79667b7b WY |
317 | } |
318 | ||
319 | timeout--; | |
320 | udelay(100); | |
321 | } | |
322 | ||
899fb9e3 | 323 | sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL); |
af62a557 LW |
324 | |
325 | if (clock == 0) | |
326 | return 0; | |
327 | ||
113e5dfc | 328 | if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) { |
6dffdbc3 WY |
329 | /* |
330 | * Check if the Host Controller supports Programmable Clock | |
331 | * Mode. | |
332 | */ | |
333 | if (host->clk_mul) { | |
334 | for (div = 1; div <= 1024; div++) { | |
0e0dcc19 | 335 | if ((host->max_clk / div) <= clock) |
af62a557 LW |
336 | break; |
337 | } | |
6dffdbc3 WY |
338 | |
339 | /* | |
340 | * Set Programmable Clock Mode in the Clock | |
341 | * Control register. | |
342 | */ | |
343 | clk = SDHCI_PROG_CLOCK_MODE; | |
344 | div--; | |
345 | } else { | |
346 | /* Version 3.00 divisors must be a multiple of 2. */ | |
6d0e34bf | 347 | if (host->max_clk <= clock) { |
6dffdbc3 WY |
348 | div = 1; |
349 | } else { | |
350 | for (div = 2; | |
351 | div < SDHCI_MAX_DIV_SPEC_300; | |
352 | div += 2) { | |
6d0e34bf | 353 | if ((host->max_clk / div) <= clock) |
6dffdbc3 WY |
354 | break; |
355 | } | |
356 | } | |
357 | div >>= 1; | |
af62a557 LW |
358 | } |
359 | } else { | |
360 | /* Version 2.00 divisors must be a power of 2. */ | |
361 | for (div = 1; div < SDHCI_MAX_DIV_SPEC_200; div *= 2) { | |
6d0e34bf | 362 | if ((host->max_clk / div) <= clock) |
af62a557 LW |
363 | break; |
364 | } | |
6dffdbc3 | 365 | div >>= 1; |
af62a557 | 366 | } |
af62a557 | 367 | |
bf9c4d14 | 368 | if (host->ops && host->ops->set_clock) |
62226b68 | 369 | host->ops->set_clock(host, div); |
b09ed6e4 | 370 | |
6dffdbc3 | 371 | clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT; |
af62a557 LW |
372 | clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN) |
373 | << SDHCI_DIVIDER_HI_SHIFT; | |
374 | clk |= SDHCI_CLOCK_INT_EN; | |
375 | sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); | |
376 | ||
377 | /* Wait max 20 ms */ | |
378 | timeout = 20; | |
379 | while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL)) | |
380 | & SDHCI_CLOCK_INT_STABLE)) { | |
381 | if (timeout == 0) { | |
30e6d979 DR |
382 | printf("%s: Internal clock never stabilised.\n", |
383 | __func__); | |
2cb5d67c | 384 | return -EBUSY; |
af62a557 LW |
385 | } |
386 | timeout--; | |
387 | udelay(1000); | |
388 | } | |
389 | ||
390 | clk |= SDHCI_CLOCK_CARD_EN; | |
391 | sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); | |
392 | return 0; | |
393 | } | |
394 | ||
395 | static void sdhci_set_power(struct sdhci_host *host, unsigned short power) | |
396 | { | |
397 | u8 pwr = 0; | |
398 | ||
399 | if (power != (unsigned short)-1) { | |
400 | switch (1 << power) { | |
401 | case MMC_VDD_165_195: | |
402 | pwr = SDHCI_POWER_180; | |
403 | break; | |
404 | case MMC_VDD_29_30: | |
405 | case MMC_VDD_30_31: | |
406 | pwr = SDHCI_POWER_300; | |
407 | break; | |
408 | case MMC_VDD_32_33: | |
409 | case MMC_VDD_33_34: | |
410 | pwr = SDHCI_POWER_330; | |
411 | break; | |
412 | } | |
413 | } | |
414 | ||
415 | if (pwr == 0) { | |
416 | sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); | |
417 | return; | |
418 | } | |
419 | ||
420 | pwr |= SDHCI_POWER_ON; | |
421 | ||
422 | sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); | |
423 | } | |
424 | ||
e7881d85 | 425 | #ifdef CONFIG_DM_MMC |
ef1e4eda SG |
426 | static int sdhci_set_ios(struct udevice *dev) |
427 | { | |
428 | struct mmc *mmc = mmc_get_mmc_dev(dev); | |
429 | #else | |
07b0b9c0 | 430 | static int sdhci_set_ios(struct mmc *mmc) |
af62a557 | 431 | { |
ef1e4eda | 432 | #endif |
af62a557 | 433 | u32 ctrl; |
93bfd616 | 434 | struct sdhci_host *host = mmc->priv; |
af62a557 | 435 | |
bf9c4d14 | 436 | if (host->ops && host->ops->set_control_reg) |
62226b68 | 437 | host->ops->set_control_reg(host); |
236bfecf | 438 | |
af62a557 LW |
439 | if (mmc->clock != host->clock) |
440 | sdhci_set_clock(mmc, mmc->clock); | |
441 | ||
442 | /* Set bus width */ | |
443 | ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); | |
444 | if (mmc->bus_width == 8) { | |
445 | ctrl &= ~SDHCI_CTRL_4BITBUS; | |
113e5dfc JC |
446 | if ((SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) || |
447 | (host->quirks & SDHCI_QUIRK_USE_WIDE8)) | |
af62a557 LW |
448 | ctrl |= SDHCI_CTRL_8BITBUS; |
449 | } else { | |
f88a429f MR |
450 | if ((SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) || |
451 | (host->quirks & SDHCI_QUIRK_USE_WIDE8)) | |
af62a557 LW |
452 | ctrl &= ~SDHCI_CTRL_8BITBUS; |
453 | if (mmc->bus_width == 4) | |
454 | ctrl |= SDHCI_CTRL_4BITBUS; | |
455 | else | |
456 | ctrl &= ~SDHCI_CTRL_4BITBUS; | |
457 | } | |
458 | ||
459 | if (mmc->clock > 26000000) | |
460 | ctrl |= SDHCI_CTRL_HISPD; | |
461 | else | |
462 | ctrl &= ~SDHCI_CTRL_HISPD; | |
463 | ||
88a57125 HS |
464 | if ((host->quirks & SDHCI_QUIRK_NO_HISPD_BIT) || |
465 | (host->quirks & SDHCI_QUIRK_BROKEN_HISPD_MODE)) | |
236bfecf JC |
466 | ctrl &= ~SDHCI_CTRL_HISPD; |
467 | ||
af62a557 | 468 | sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); |
07b0b9c0 | 469 | |
210841c6 SR |
470 | /* If available, call the driver specific "post" set_ios() function */ |
471 | if (host->ops && host->ops->set_ios_post) | |
472 | host->ops->set_ios_post(host); | |
473 | ||
ef1e4eda | 474 | return 0; |
af62a557 LW |
475 | } |
476 | ||
6588c78b | 477 | static int sdhci_init(struct mmc *mmc) |
af62a557 | 478 | { |
93bfd616 | 479 | struct sdhci_host *host = mmc->priv; |
af62a557 | 480 | |
8d549b61 MY |
481 | sdhci_reset(host, SDHCI_RESET_ALL); |
482 | ||
af62a557 LW |
483 | if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && !aligned_buffer) { |
484 | aligned_buffer = memalign(8, 512*1024); | |
485 | if (!aligned_buffer) { | |
30e6d979 DR |
486 | printf("%s: Aligned buffer alloc failed!!!\n", |
487 | __func__); | |
2cb5d67c | 488 | return -ENOMEM; |
af62a557 LW |
489 | } |
490 | } | |
491 | ||
93bfd616 | 492 | sdhci_set_power(host, fls(mmc->cfg->voltages) - 1); |
470dcc75 | 493 | |
bf9c4d14 | 494 | if (host->ops && host->ops->get_cd) |
6f88a3a5 | 495 | host->ops->get_cd(host); |
470dcc75 | 496 | |
ce0c1bc1 | 497 | /* Enable only interrupts served by the SD controller */ |
30e6d979 DR |
498 | sdhci_writel(host, SDHCI_INT_DATA_MASK | SDHCI_INT_CMD_MASK, |
499 | SDHCI_INT_ENABLE); | |
ce0c1bc1 ŁM |
500 | /* Mask all sdhci interrupt sources */ |
501 | sdhci_writel(host, 0x0, SDHCI_SIGNAL_ENABLE); | |
af62a557 | 502 | |
af62a557 LW |
503 | return 0; |
504 | } | |
505 | ||
e7881d85 | 506 | #ifdef CONFIG_DM_MMC |
ef1e4eda SG |
507 | int sdhci_probe(struct udevice *dev) |
508 | { | |
509 | struct mmc *mmc = mmc_get_mmc_dev(dev); | |
510 | ||
511 | return sdhci_init(mmc); | |
512 | } | |
ab769f22 | 513 | |
ef1e4eda SG |
514 | const struct dm_mmc_ops sdhci_ops = { |
515 | .send_cmd = sdhci_send_command, | |
516 | .set_ios = sdhci_set_ios, | |
517 | }; | |
518 | #else | |
ab769f22 PA |
519 | static const struct mmc_ops sdhci_ops = { |
520 | .send_cmd = sdhci_send_command, | |
521 | .set_ios = sdhci_set_ios, | |
522 | .init = sdhci_init, | |
523 | }; | |
ef1e4eda | 524 | #endif |
ab769f22 | 525 | |
14bed52d | 526 | int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, |
6d0e34bf | 527 | u32 f_max, u32 f_min) |
af62a557 | 528 | { |
6dffdbc3 | 529 | u32 caps, caps_1; |
14bed52d JC |
530 | |
531 | caps = sdhci_readl(host, SDHCI_CAPABILITIES); | |
15bd0995 | 532 | |
45a68fe2 | 533 | #ifdef CONFIG_MMC_SDHCI_SDMA |
15bd0995 MY |
534 | if (!(caps & SDHCI_CAN_DO_SDMA)) { |
535 | printf("%s: Your controller doesn't support SDMA!!\n", | |
536 | __func__); | |
537 | return -EINVAL; | |
538 | } | |
539 | #endif | |
895549a2 JC |
540 | if (host->quirks & SDHCI_QUIRK_REG32_RW) |
541 | host->version = | |
542 | sdhci_readl(host, SDHCI_HOST_VERSION - 2) >> 16; | |
543 | else | |
544 | host->version = sdhci_readw(host, SDHCI_HOST_VERSION); | |
14bed52d JC |
545 | |
546 | cfg->name = host->name; | |
e7881d85 | 547 | #ifndef CONFIG_DM_MMC |
2a809093 | 548 | cfg->ops = &sdhci_ops; |
af62a557 | 549 | #endif |
0e0dcc19 WY |
550 | |
551 | /* Check whether the clock multiplier is supported or not */ | |
552 | if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) { | |
553 | caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); | |
554 | host->clk_mul = (caps_1 & SDHCI_CLOCK_MUL_MASK) >> | |
555 | SDHCI_CLOCK_MUL_SHIFT; | |
556 | } | |
557 | ||
6d0e34bf | 558 | if (host->max_clk == 0) { |
14bed52d | 559 | if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) |
6d0e34bf | 560 | host->max_clk = (caps & SDHCI_CLOCK_V3_BASE_MASK) >> |
2a809093 | 561 | SDHCI_CLOCK_BASE_SHIFT; |
af62a557 | 562 | else |
6d0e34bf | 563 | host->max_clk = (caps & SDHCI_CLOCK_BASE_MASK) >> |
2a809093 | 564 | SDHCI_CLOCK_BASE_SHIFT; |
6d0e34bf | 565 | host->max_clk *= 1000000; |
0e0dcc19 WY |
566 | if (host->clk_mul) |
567 | host->max_clk *= host->clk_mul; | |
af62a557 | 568 | } |
6d0e34bf | 569 | if (host->max_clk == 0) { |
6c67954c MY |
570 | printf("%s: Hardware doesn't specify base clock frequency\n", |
571 | __func__); | |
2a809093 | 572 | return -EINVAL; |
6c67954c | 573 | } |
6d0e34bf SH |
574 | if (f_max && (f_max < host->max_clk)) |
575 | cfg->f_max = f_max; | |
576 | else | |
577 | cfg->f_max = host->max_clk; | |
578 | if (f_min) | |
579 | cfg->f_min = f_min; | |
af62a557 | 580 | else { |
14bed52d | 581 | if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) |
2a809093 | 582 | cfg->f_min = cfg->f_max / SDHCI_MAX_DIV_SPEC_300; |
af62a557 | 583 | else |
2a809093 | 584 | cfg->f_min = cfg->f_max / SDHCI_MAX_DIV_SPEC_200; |
af62a557 | 585 | } |
2a809093 | 586 | cfg->voltages = 0; |
af62a557 | 587 | if (caps & SDHCI_CAN_VDD_330) |
2a809093 | 588 | cfg->voltages |= MMC_VDD_32_33 | MMC_VDD_33_34; |
af62a557 | 589 | if (caps & SDHCI_CAN_VDD_300) |
2a809093 | 590 | cfg->voltages |= MMC_VDD_29_30 | MMC_VDD_30_31; |
af62a557 | 591 | if (caps & SDHCI_CAN_VDD_180) |
2a809093 | 592 | cfg->voltages |= MMC_VDD_165_195; |
236bfecf | 593 | |
3137e645 MY |
594 | if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE) |
595 | cfg->voltages |= host->voltages; | |
596 | ||
be165fbb | 597 | cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT; |
3fd0a9ba JC |
598 | |
599 | /* Since Host Controller Version3.0 */ | |
14bed52d | 600 | if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) { |
ecd7b246 JC |
601 | if (!(caps & SDHCI_CAN_DO_8BIT)) |
602 | cfg->host_caps &= ~MMC_MODE_8BIT; | |
1695b29a | 603 | } |
42979002 | 604 | |
88a57125 HS |
605 | if (host->quirks & SDHCI_QUIRK_BROKEN_HISPD_MODE) { |
606 | cfg->host_caps &= ~MMC_MODE_HS; | |
607 | cfg->host_caps &= ~MMC_MODE_HS_52MHz; | |
608 | } | |
609 | ||
14bed52d JC |
610 | if (host->host_caps) |
611 | cfg->host_caps |= host->host_caps; | |
42979002 | 612 | |
2a809093 | 613 | cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; |
93bfd616 | 614 | |
2a809093 SG |
615 | return 0; |
616 | } | |
617 | ||
ef1e4eda SG |
618 | #ifdef CONFIG_BLK |
619 | int sdhci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg) | |
620 | { | |
621 | return mmc_bind(dev, mmc, cfg); | |
622 | } | |
623 | #else | |
6d0e34bf | 624 | int add_sdhci(struct sdhci_host *host, u32 f_max, u32 f_min) |
2a809093 | 625 | { |
6c67954c MY |
626 | int ret; |
627 | ||
6d0e34bf | 628 | ret = sdhci_setup_cfg(&host->cfg, host, f_max, f_min); |
6c67954c MY |
629 | if (ret) |
630 | return ret; | |
2a809093 | 631 | |
93bfd616 PA |
632 | host->mmc = mmc_create(&host->cfg, host); |
633 | if (host->mmc == NULL) { | |
634 | printf("%s: mmc create fail!\n", __func__); | |
2cb5d67c | 635 | return -ENOMEM; |
93bfd616 | 636 | } |
af62a557 LW |
637 | |
638 | return 0; | |
639 | } | |
ef1e4eda | 640 | #endif |