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1 | /* | |
2 | * Copyright 2008, Freescale Semiconductor, Inc | |
3 | * Andy Fleming | |
4 | * | |
5 | * Based vaguely on the Linux code | |
6 | * | |
7 | * SPDX-License-Identifier: GPL-2.0+ | |
8 | */ | |
9 | ||
10 | #include <config.h> | |
11 | #include <common.h> | |
12 | #include <command.h> | |
13 | #include <dm.h> | |
14 | #include <dm/device-internal.h> | |
15 | #include <errno.h> | |
16 | #include <mmc.h> | |
17 | #include <part.h> | |
18 | #include <power/regulator.h> | |
19 | #include <malloc.h> | |
20 | #include <memalign.h> | |
21 | #include <linux/list.h> | |
22 | #include <div64.h> | |
23 | #include "mmc_private.h" | |
24 | ||
25 | static const unsigned int sd_au_size[] = { | |
26 | 0, SZ_16K / 512, SZ_32K / 512, | |
27 | SZ_64K / 512, SZ_128K / 512, SZ_256K / 512, | |
28 | SZ_512K / 512, SZ_1M / 512, SZ_2M / 512, | |
29 | SZ_4M / 512, SZ_8M / 512, (SZ_8M + SZ_4M) / 512, | |
30 | SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512, | |
31 | }; | |
32 | ||
33 | #if CONFIG_IS_ENABLED(MMC_TINY) | |
34 | static struct mmc mmc_static; | |
35 | struct mmc *find_mmc_device(int dev_num) | |
36 | { | |
37 | return &mmc_static; | |
38 | } | |
39 | ||
40 | void mmc_do_preinit(void) | |
41 | { | |
42 | struct mmc *m = &mmc_static; | |
43 | #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT | |
44 | mmc_set_preinit(m, 1); | |
45 | #endif | |
46 | if (m->preinit) | |
47 | mmc_start_init(m); | |
48 | } | |
49 | ||
50 | struct blk_desc *mmc_get_blk_desc(struct mmc *mmc) | |
51 | { | |
52 | return &mmc->block_dev; | |
53 | } | |
54 | #endif | |
55 | ||
56 | #if !CONFIG_IS_ENABLED(DM_MMC_OPS) | |
57 | __weak int board_mmc_getwp(struct mmc *mmc) | |
58 | { | |
59 | return -1; | |
60 | } | |
61 | ||
62 | int mmc_getwp(struct mmc *mmc) | |
63 | { | |
64 | int wp; | |
65 | ||
66 | wp = board_mmc_getwp(mmc); | |
67 | ||
68 | if (wp < 0) { | |
69 | if (mmc->cfg->ops->getwp) | |
70 | wp = mmc->cfg->ops->getwp(mmc); | |
71 | else | |
72 | wp = 0; | |
73 | } | |
74 | ||
75 | return wp; | |
76 | } | |
77 | ||
78 | __weak int board_mmc_getcd(struct mmc *mmc) | |
79 | { | |
80 | return -1; | |
81 | } | |
82 | #endif | |
83 | ||
84 | #ifdef CONFIG_MMC_TRACE | |
85 | void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd) | |
86 | { | |
87 | printf("CMD_SEND:%d\n", cmd->cmdidx); | |
88 | printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg); | |
89 | } | |
90 | ||
91 | void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret) | |
92 | { | |
93 | int i; | |
94 | u8 *ptr; | |
95 | ||
96 | if (ret) { | |
97 | printf("\t\tRET\t\t\t %d\n", ret); | |
98 | } else { | |
99 | switch (cmd->resp_type) { | |
100 | case MMC_RSP_NONE: | |
101 | printf("\t\tMMC_RSP_NONE\n"); | |
102 | break; | |
103 | case MMC_RSP_R1: | |
104 | printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08X \n", | |
105 | cmd->response[0]); | |
106 | break; | |
107 | case MMC_RSP_R1b: | |
108 | printf("\t\tMMC_RSP_R1b\t\t 0x%08X \n", | |
109 | cmd->response[0]); | |
110 | break; | |
111 | case MMC_RSP_R2: | |
112 | printf("\t\tMMC_RSP_R2\t\t 0x%08X \n", | |
113 | cmd->response[0]); | |
114 | printf("\t\t \t\t 0x%08X \n", | |
115 | cmd->response[1]); | |
116 | printf("\t\t \t\t 0x%08X \n", | |
117 | cmd->response[2]); | |
118 | printf("\t\t \t\t 0x%08X \n", | |
119 | cmd->response[3]); | |
120 | printf("\n"); | |
121 | printf("\t\t\t\t\tDUMPING DATA\n"); | |
122 | for (i = 0; i < 4; i++) { | |
123 | int j; | |
124 | printf("\t\t\t\t\t%03d - ", i*4); | |
125 | ptr = (u8 *)&cmd->response[i]; | |
126 | ptr += 3; | |
127 | for (j = 0; j < 4; j++) | |
128 | printf("%02X ", *ptr--); | |
129 | printf("\n"); | |
130 | } | |
131 | break; | |
132 | case MMC_RSP_R3: | |
133 | printf("\t\tMMC_RSP_R3,4\t\t 0x%08X \n", | |
134 | cmd->response[0]); | |
135 | break; | |
136 | default: | |
137 | printf("\t\tERROR MMC rsp not supported\n"); | |
138 | break; | |
139 | } | |
140 | } | |
141 | } | |
142 | ||
143 | void mmc_trace_state(struct mmc *mmc, struct mmc_cmd *cmd) | |
144 | { | |
145 | int status; | |
146 | ||
147 | status = (cmd->response[0] & MMC_STATUS_CURR_STATE) >> 9; | |
148 | printf("CURR STATE:%d\n", status); | |
149 | } | |
150 | #endif | |
151 | ||
152 | #if !CONFIG_IS_ENABLED(DM_MMC_OPS) | |
153 | int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) | |
154 | { | |
155 | int ret; | |
156 | ||
157 | mmmc_trace_before_send(mmc, cmd); | |
158 | ret = mmc->cfg->ops->send_cmd(mmc, cmd, data); | |
159 | mmmc_trace_after_send(mmc, cmd, ret); | |
160 | ||
161 | return ret; | |
162 | } | |
163 | #endif | |
164 | ||
165 | int mmc_send_status(struct mmc *mmc, int timeout) | |
166 | { | |
167 | struct mmc_cmd cmd; | |
168 | int err, retries = 5; | |
169 | ||
170 | cmd.cmdidx = MMC_CMD_SEND_STATUS; | |
171 | cmd.resp_type = MMC_RSP_R1; | |
172 | if (!mmc_host_is_spi(mmc)) | |
173 | cmd.cmdarg = mmc->rca << 16; | |
174 | ||
175 | while (1) { | |
176 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
177 | if (!err) { | |
178 | if ((cmd.response[0] & MMC_STATUS_RDY_FOR_DATA) && | |
179 | (cmd.response[0] & MMC_STATUS_CURR_STATE) != | |
180 | MMC_STATE_PRG) | |
181 | break; | |
182 | else if (cmd.response[0] & MMC_STATUS_MASK) { | |
183 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) | |
184 | printf("Status Error: 0x%08X\n", | |
185 | cmd.response[0]); | |
186 | #endif | |
187 | return -ECOMM; | |
188 | } | |
189 | } else if (--retries < 0) | |
190 | return err; | |
191 | ||
192 | if (timeout-- <= 0) | |
193 | break; | |
194 | ||
195 | udelay(1000); | |
196 | } | |
197 | ||
198 | mmc_trace_state(mmc, &cmd); | |
199 | if (timeout <= 0) { | |
200 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) | |
201 | printf("Timeout waiting card ready\n"); | |
202 | #endif | |
203 | return -ETIMEDOUT; | |
204 | } | |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
209 | int mmc_set_blocklen(struct mmc *mmc, int len) | |
210 | { | |
211 | struct mmc_cmd cmd; | |
212 | ||
213 | if (mmc->ddr_mode) | |
214 | return 0; | |
215 | ||
216 | cmd.cmdidx = MMC_CMD_SET_BLOCKLEN; | |
217 | cmd.resp_type = MMC_RSP_R1; | |
218 | cmd.cmdarg = len; | |
219 | ||
220 | return mmc_send_cmd(mmc, &cmd, NULL); | |
221 | } | |
222 | ||
223 | static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start, | |
224 | lbaint_t blkcnt) | |
225 | { | |
226 | struct mmc_cmd cmd; | |
227 | struct mmc_data data; | |
228 | ||
229 | if (blkcnt > 1) | |
230 | cmd.cmdidx = MMC_CMD_READ_MULTIPLE_BLOCK; | |
231 | else | |
232 | cmd.cmdidx = MMC_CMD_READ_SINGLE_BLOCK; | |
233 | ||
234 | if (mmc->high_capacity) | |
235 | cmd.cmdarg = start; | |
236 | else | |
237 | cmd.cmdarg = start * mmc->read_bl_len; | |
238 | ||
239 | cmd.resp_type = MMC_RSP_R1; | |
240 | ||
241 | data.dest = dst; | |
242 | data.blocks = blkcnt; | |
243 | data.blocksize = mmc->read_bl_len; | |
244 | data.flags = MMC_DATA_READ; | |
245 | ||
246 | if (mmc_send_cmd(mmc, &cmd, &data)) | |
247 | return 0; | |
248 | ||
249 | if (blkcnt > 1) { | |
250 | cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION; | |
251 | cmd.cmdarg = 0; | |
252 | cmd.resp_type = MMC_RSP_R1b; | |
253 | if (mmc_send_cmd(mmc, &cmd, NULL)) { | |
254 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) | |
255 | printf("mmc fail to send stop cmd\n"); | |
256 | #endif | |
257 | return 0; | |
258 | } | |
259 | } | |
260 | ||
261 | return blkcnt; | |
262 | } | |
263 | ||
264 | #if CONFIG_IS_ENABLED(BLK) | |
265 | ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, void *dst) | |
266 | #else | |
267 | ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, | |
268 | void *dst) | |
269 | #endif | |
270 | { | |
271 | #if CONFIG_IS_ENABLED(BLK) | |
272 | struct blk_desc *block_dev = dev_get_uclass_platdata(dev); | |
273 | #endif | |
274 | int dev_num = block_dev->devnum; | |
275 | int err; | |
276 | lbaint_t cur, blocks_todo = blkcnt; | |
277 | ||
278 | if (blkcnt == 0) | |
279 | return 0; | |
280 | ||
281 | struct mmc *mmc = find_mmc_device(dev_num); | |
282 | if (!mmc) | |
283 | return 0; | |
284 | ||
285 | if (CONFIG_IS_ENABLED(MMC_TINY)) | |
286 | err = mmc_switch_part(mmc, block_dev->hwpart); | |
287 | else | |
288 | err = blk_dselect_hwpart(block_dev, block_dev->hwpart); | |
289 | ||
290 | if (err < 0) | |
291 | return 0; | |
292 | ||
293 | if ((start + blkcnt) > block_dev->lba) { | |
294 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) | |
295 | printf("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n", | |
296 | start + blkcnt, block_dev->lba); | |
297 | #endif | |
298 | return 0; | |
299 | } | |
300 | ||
301 | if (mmc_set_blocklen(mmc, mmc->read_bl_len)) { | |
302 | debug("%s: Failed to set blocklen\n", __func__); | |
303 | return 0; | |
304 | } | |
305 | ||
306 | do { | |
307 | cur = (blocks_todo > mmc->cfg->b_max) ? | |
308 | mmc->cfg->b_max : blocks_todo; | |
309 | if (mmc_read_blocks(mmc, dst, start, cur) != cur) { | |
310 | debug("%s: Failed to read blocks\n", __func__); | |
311 | return 0; | |
312 | } | |
313 | blocks_todo -= cur; | |
314 | start += cur; | |
315 | dst += cur * mmc->read_bl_len; | |
316 | } while (blocks_todo > 0); | |
317 | ||
318 | return blkcnt; | |
319 | } | |
320 | ||
321 | static int mmc_go_idle(struct mmc *mmc) | |
322 | { | |
323 | struct mmc_cmd cmd; | |
324 | int err; | |
325 | ||
326 | udelay(1000); | |
327 | ||
328 | cmd.cmdidx = MMC_CMD_GO_IDLE_STATE; | |
329 | cmd.cmdarg = 0; | |
330 | cmd.resp_type = MMC_RSP_NONE; | |
331 | ||
332 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
333 | ||
334 | if (err) | |
335 | return err; | |
336 | ||
337 | udelay(2000); | |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
342 | static int sd_send_op_cond(struct mmc *mmc) | |
343 | { | |
344 | int timeout = 1000; | |
345 | int err; | |
346 | struct mmc_cmd cmd; | |
347 | ||
348 | while (1) { | |
349 | cmd.cmdidx = MMC_CMD_APP_CMD; | |
350 | cmd.resp_type = MMC_RSP_R1; | |
351 | cmd.cmdarg = 0; | |
352 | ||
353 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
354 | ||
355 | if (err) | |
356 | return err; | |
357 | ||
358 | cmd.cmdidx = SD_CMD_APP_SEND_OP_COND; | |
359 | cmd.resp_type = MMC_RSP_R3; | |
360 | ||
361 | /* | |
362 | * Most cards do not answer if some reserved bits | |
363 | * in the ocr are set. However, Some controller | |
364 | * can set bit 7 (reserved for low voltages), but | |
365 | * how to manage low voltages SD card is not yet | |
366 | * specified. | |
367 | */ | |
368 | cmd.cmdarg = mmc_host_is_spi(mmc) ? 0 : | |
369 | (mmc->cfg->voltages & 0xff8000); | |
370 | ||
371 | if (mmc->version == SD_VERSION_2) | |
372 | cmd.cmdarg |= OCR_HCS; | |
373 | ||
374 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
375 | ||
376 | if (err) | |
377 | return err; | |
378 | ||
379 | if (cmd.response[0] & OCR_BUSY) | |
380 | break; | |
381 | ||
382 | if (timeout-- <= 0) | |
383 | return -EOPNOTSUPP; | |
384 | ||
385 | udelay(1000); | |
386 | } | |
387 | ||
388 | if (mmc->version != SD_VERSION_2) | |
389 | mmc->version = SD_VERSION_1_0; | |
390 | ||
391 | if (mmc_host_is_spi(mmc)) { /* read OCR for spi */ | |
392 | cmd.cmdidx = MMC_CMD_SPI_READ_OCR; | |
393 | cmd.resp_type = MMC_RSP_R3; | |
394 | cmd.cmdarg = 0; | |
395 | ||
396 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
397 | ||
398 | if (err) | |
399 | return err; | |
400 | } | |
401 | ||
402 | mmc->ocr = cmd.response[0]; | |
403 | ||
404 | mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS); | |
405 | mmc->rca = 0; | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | static int mmc_send_op_cond_iter(struct mmc *mmc, int use_arg) | |
411 | { | |
412 | struct mmc_cmd cmd; | |
413 | int err; | |
414 | ||
415 | cmd.cmdidx = MMC_CMD_SEND_OP_COND; | |
416 | cmd.resp_type = MMC_RSP_R3; | |
417 | cmd.cmdarg = 0; | |
418 | if (use_arg && !mmc_host_is_spi(mmc)) | |
419 | cmd.cmdarg = OCR_HCS | | |
420 | (mmc->cfg->voltages & | |
421 | (mmc->ocr & OCR_VOLTAGE_MASK)) | | |
422 | (mmc->ocr & OCR_ACCESS_MODE); | |
423 | ||
424 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
425 | if (err) | |
426 | return err; | |
427 | mmc->ocr = cmd.response[0]; | |
428 | return 0; | |
429 | } | |
430 | ||
431 | static int mmc_send_op_cond(struct mmc *mmc) | |
432 | { | |
433 | int err, i; | |
434 | ||
435 | /* Some cards seem to need this */ | |
436 | mmc_go_idle(mmc); | |
437 | ||
438 | /* Asking to the card its capabilities */ | |
439 | for (i = 0; i < 2; i++) { | |
440 | err = mmc_send_op_cond_iter(mmc, i != 0); | |
441 | if (err) | |
442 | return err; | |
443 | ||
444 | /* exit if not busy (flag seems to be inverted) */ | |
445 | if (mmc->ocr & OCR_BUSY) | |
446 | break; | |
447 | } | |
448 | mmc->op_cond_pending = 1; | |
449 | return 0; | |
450 | } | |
451 | ||
452 | static int mmc_complete_op_cond(struct mmc *mmc) | |
453 | { | |
454 | struct mmc_cmd cmd; | |
455 | int timeout = 1000; | |
456 | uint start; | |
457 | int err; | |
458 | ||
459 | mmc->op_cond_pending = 0; | |
460 | if (!(mmc->ocr & OCR_BUSY)) { | |
461 | /* Some cards seem to need this */ | |
462 | mmc_go_idle(mmc); | |
463 | ||
464 | start = get_timer(0); | |
465 | while (1) { | |
466 | err = mmc_send_op_cond_iter(mmc, 1); | |
467 | if (err) | |
468 | return err; | |
469 | if (mmc->ocr & OCR_BUSY) | |
470 | break; | |
471 | if (get_timer(start) > timeout) | |
472 | return -EOPNOTSUPP; | |
473 | udelay(100); | |
474 | } | |
475 | } | |
476 | ||
477 | if (mmc_host_is_spi(mmc)) { /* read OCR for spi */ | |
478 | cmd.cmdidx = MMC_CMD_SPI_READ_OCR; | |
479 | cmd.resp_type = MMC_RSP_R3; | |
480 | cmd.cmdarg = 0; | |
481 | ||
482 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
483 | ||
484 | if (err) | |
485 | return err; | |
486 | ||
487 | mmc->ocr = cmd.response[0]; | |
488 | } | |
489 | ||
490 | mmc->version = MMC_VERSION_UNKNOWN; | |
491 | ||
492 | mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS); | |
493 | mmc->rca = 1; | |
494 | ||
495 | return 0; | |
496 | } | |
497 | ||
498 | ||
499 | static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) | |
500 | { | |
501 | struct mmc_cmd cmd; | |
502 | struct mmc_data data; | |
503 | int err; | |
504 | ||
505 | /* Get the Card Status Register */ | |
506 | cmd.cmdidx = MMC_CMD_SEND_EXT_CSD; | |
507 | cmd.resp_type = MMC_RSP_R1; | |
508 | cmd.cmdarg = 0; | |
509 | ||
510 | data.dest = (char *)ext_csd; | |
511 | data.blocks = 1; | |
512 | data.blocksize = MMC_MAX_BLOCK_LEN; | |
513 | data.flags = MMC_DATA_READ; | |
514 | ||
515 | err = mmc_send_cmd(mmc, &cmd, &data); | |
516 | ||
517 | return err; | |
518 | } | |
519 | ||
520 | int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) | |
521 | { | |
522 | struct mmc_cmd cmd; | |
523 | int timeout = 1000; | |
524 | int retries = 3; | |
525 | int ret; | |
526 | ||
527 | cmd.cmdidx = MMC_CMD_SWITCH; | |
528 | cmd.resp_type = MMC_RSP_R1b; | |
529 | cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | | |
530 | (index << 16) | | |
531 | (value << 8); | |
532 | ||
533 | while (retries > 0) { | |
534 | ret = mmc_send_cmd(mmc, &cmd, NULL); | |
535 | ||
536 | /* Waiting for the ready status */ | |
537 | if (!ret) { | |
538 | ret = mmc_send_status(mmc, timeout); | |
539 | return ret; | |
540 | } | |
541 | ||
542 | retries--; | |
543 | } | |
544 | ||
545 | return ret; | |
546 | ||
547 | } | |
548 | ||
549 | static int mmc_change_freq(struct mmc *mmc) | |
550 | { | |
551 | ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); | |
552 | char cardtype; | |
553 | int err; | |
554 | ||
555 | mmc->card_caps = 0; | |
556 | ||
557 | if (mmc_host_is_spi(mmc)) | |
558 | return 0; | |
559 | ||
560 | /* Only version 4 supports high-speed */ | |
561 | if (mmc->version < MMC_VERSION_4) | |
562 | return 0; | |
563 | ||
564 | mmc->card_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT; | |
565 | ||
566 | err = mmc_send_ext_csd(mmc, ext_csd); | |
567 | ||
568 | if (err) | |
569 | return err; | |
570 | ||
571 | cardtype = ext_csd[EXT_CSD_CARD_TYPE] & 0xf; | |
572 | ||
573 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1); | |
574 | ||
575 | if (err) | |
576 | return err; | |
577 | ||
578 | /* Now check to see that it worked */ | |
579 | err = mmc_send_ext_csd(mmc, ext_csd); | |
580 | ||
581 | if (err) | |
582 | return err; | |
583 | ||
584 | /* No high-speed support */ | |
585 | if (!ext_csd[EXT_CSD_HS_TIMING]) | |
586 | return 0; | |
587 | ||
588 | /* High Speed is set, there are two types: 52MHz and 26MHz */ | |
589 | if (cardtype & EXT_CSD_CARD_TYPE_52) { | |
590 | if (cardtype & EXT_CSD_CARD_TYPE_DDR_1_8V) | |
591 | mmc->card_caps |= MMC_MODE_DDR_52MHz; | |
592 | mmc->card_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS; | |
593 | } else { | |
594 | mmc->card_caps |= MMC_MODE_HS; | |
595 | } | |
596 | ||
597 | return 0; | |
598 | } | |
599 | ||
600 | static int mmc_set_capacity(struct mmc *mmc, int part_num) | |
601 | { | |
602 | switch (part_num) { | |
603 | case 0: | |
604 | mmc->capacity = mmc->capacity_user; | |
605 | break; | |
606 | case 1: | |
607 | case 2: | |
608 | mmc->capacity = mmc->capacity_boot; | |
609 | break; | |
610 | case 3: | |
611 | mmc->capacity = mmc->capacity_rpmb; | |
612 | break; | |
613 | case 4: | |
614 | case 5: | |
615 | case 6: | |
616 | case 7: | |
617 | mmc->capacity = mmc->capacity_gp[part_num - 4]; | |
618 | break; | |
619 | default: | |
620 | return -1; | |
621 | } | |
622 | ||
623 | mmc_get_blk_desc(mmc)->lba = lldiv(mmc->capacity, mmc->read_bl_len); | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | int mmc_switch_part(struct mmc *mmc, unsigned int part_num) | |
629 | { | |
630 | int ret; | |
631 | ||
632 | ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF, | |
633 | (mmc->part_config & ~PART_ACCESS_MASK) | |
634 | | (part_num & PART_ACCESS_MASK)); | |
635 | ||
636 | /* | |
637 | * Set the capacity if the switch succeeded or was intended | |
638 | * to return to representing the raw device. | |
639 | */ | |
640 | if ((ret == 0) || ((ret == -ENODEV) && (part_num == 0))) { | |
641 | ret = mmc_set_capacity(mmc, part_num); | |
642 | mmc_get_blk_desc(mmc)->hwpart = part_num; | |
643 | } | |
644 | ||
645 | return ret; | |
646 | } | |
647 | ||
648 | int mmc_hwpart_config(struct mmc *mmc, | |
649 | const struct mmc_hwpart_conf *conf, | |
650 | enum mmc_hwpart_conf_mode mode) | |
651 | { | |
652 | u8 part_attrs = 0; | |
653 | u32 enh_size_mult; | |
654 | u32 enh_start_addr; | |
655 | u32 gp_size_mult[4]; | |
656 | u32 max_enh_size_mult; | |
657 | u32 tot_enh_size_mult = 0; | |
658 | u8 wr_rel_set; | |
659 | int i, pidx, err; | |
660 | ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); | |
661 | ||
662 | if (mode < MMC_HWPART_CONF_CHECK || mode > MMC_HWPART_CONF_COMPLETE) | |
663 | return -EINVAL; | |
664 | ||
665 | if (IS_SD(mmc) || (mmc->version < MMC_VERSION_4_41)) { | |
666 | printf("eMMC >= 4.4 required for enhanced user data area\n"); | |
667 | return -EMEDIUMTYPE; | |
668 | } | |
669 | ||
670 | if (!(mmc->part_support & PART_SUPPORT)) { | |
671 | printf("Card does not support partitioning\n"); | |
672 | return -EMEDIUMTYPE; | |
673 | } | |
674 | ||
675 | if (!mmc->hc_wp_grp_size) { | |
676 | printf("Card does not define HC WP group size\n"); | |
677 | return -EMEDIUMTYPE; | |
678 | } | |
679 | ||
680 | /* check partition alignment and total enhanced size */ | |
681 | if (conf->user.enh_size) { | |
682 | if (conf->user.enh_size % mmc->hc_wp_grp_size || | |
683 | conf->user.enh_start % mmc->hc_wp_grp_size) { | |
684 | printf("User data enhanced area not HC WP group " | |
685 | "size aligned\n"); | |
686 | return -EINVAL; | |
687 | } | |
688 | part_attrs |= EXT_CSD_ENH_USR; | |
689 | enh_size_mult = conf->user.enh_size / mmc->hc_wp_grp_size; | |
690 | if (mmc->high_capacity) { | |
691 | enh_start_addr = conf->user.enh_start; | |
692 | } else { | |
693 | enh_start_addr = (conf->user.enh_start << 9); | |
694 | } | |
695 | } else { | |
696 | enh_size_mult = 0; | |
697 | enh_start_addr = 0; | |
698 | } | |
699 | tot_enh_size_mult += enh_size_mult; | |
700 | ||
701 | for (pidx = 0; pidx < 4; pidx++) { | |
702 | if (conf->gp_part[pidx].size % mmc->hc_wp_grp_size) { | |
703 | printf("GP%i partition not HC WP group size " | |
704 | "aligned\n", pidx+1); | |
705 | return -EINVAL; | |
706 | } | |
707 | gp_size_mult[pidx] = conf->gp_part[pidx].size / mmc->hc_wp_grp_size; | |
708 | if (conf->gp_part[pidx].size && conf->gp_part[pidx].enhanced) { | |
709 | part_attrs |= EXT_CSD_ENH_GP(pidx); | |
710 | tot_enh_size_mult += gp_size_mult[pidx]; | |
711 | } | |
712 | } | |
713 | ||
714 | if (part_attrs && ! (mmc->part_support & ENHNCD_SUPPORT)) { | |
715 | printf("Card does not support enhanced attribute\n"); | |
716 | return -EMEDIUMTYPE; | |
717 | } | |
718 | ||
719 | err = mmc_send_ext_csd(mmc, ext_csd); | |
720 | if (err) | |
721 | return err; | |
722 | ||
723 | max_enh_size_mult = | |
724 | (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT+2] << 16) + | |
725 | (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT+1] << 8) + | |
726 | ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT]; | |
727 | if (tot_enh_size_mult > max_enh_size_mult) { | |
728 | printf("Total enhanced size exceeds maximum (%u > %u)\n", | |
729 | tot_enh_size_mult, max_enh_size_mult); | |
730 | return -EMEDIUMTYPE; | |
731 | } | |
732 | ||
733 | /* The default value of EXT_CSD_WR_REL_SET is device | |
734 | * dependent, the values can only be changed if the | |
735 | * EXT_CSD_HS_CTRL_REL bit is set. The values can be | |
736 | * changed only once and before partitioning is completed. */ | |
737 | wr_rel_set = ext_csd[EXT_CSD_WR_REL_SET]; | |
738 | if (conf->user.wr_rel_change) { | |
739 | if (conf->user.wr_rel_set) | |
740 | wr_rel_set |= EXT_CSD_WR_DATA_REL_USR; | |
741 | else | |
742 | wr_rel_set &= ~EXT_CSD_WR_DATA_REL_USR; | |
743 | } | |
744 | for (pidx = 0; pidx < 4; pidx++) { | |
745 | if (conf->gp_part[pidx].wr_rel_change) { | |
746 | if (conf->gp_part[pidx].wr_rel_set) | |
747 | wr_rel_set |= EXT_CSD_WR_DATA_REL_GP(pidx); | |
748 | else | |
749 | wr_rel_set &= ~EXT_CSD_WR_DATA_REL_GP(pidx); | |
750 | } | |
751 | } | |
752 | ||
753 | if (wr_rel_set != ext_csd[EXT_CSD_WR_REL_SET] && | |
754 | !(ext_csd[EXT_CSD_WR_REL_PARAM] & EXT_CSD_HS_CTRL_REL)) { | |
755 | puts("Card does not support host controlled partition write " | |
756 | "reliability settings\n"); | |
757 | return -EMEDIUMTYPE; | |
758 | } | |
759 | ||
760 | if (ext_csd[EXT_CSD_PARTITION_SETTING] & | |
761 | EXT_CSD_PARTITION_SETTING_COMPLETED) { | |
762 | printf("Card already partitioned\n"); | |
763 | return -EPERM; | |
764 | } | |
765 | ||
766 | if (mode == MMC_HWPART_CONF_CHECK) | |
767 | return 0; | |
768 | ||
769 | /* Partitioning requires high-capacity size definitions */ | |
770 | if (!(ext_csd[EXT_CSD_ERASE_GROUP_DEF] & 0x01)) { | |
771 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
772 | EXT_CSD_ERASE_GROUP_DEF, 1); | |
773 | ||
774 | if (err) | |
775 | return err; | |
776 | ||
777 | ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1; | |
778 | ||
779 | /* update erase group size to be high-capacity */ | |
780 | mmc->erase_grp_size = | |
781 | ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024; | |
782 | ||
783 | } | |
784 | ||
785 | /* all OK, write the configuration */ | |
786 | for (i = 0; i < 4; i++) { | |
787 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
788 | EXT_CSD_ENH_START_ADDR+i, | |
789 | (enh_start_addr >> (i*8)) & 0xFF); | |
790 | if (err) | |
791 | return err; | |
792 | } | |
793 | for (i = 0; i < 3; i++) { | |
794 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
795 | EXT_CSD_ENH_SIZE_MULT+i, | |
796 | (enh_size_mult >> (i*8)) & 0xFF); | |
797 | if (err) | |
798 | return err; | |
799 | } | |
800 | for (pidx = 0; pidx < 4; pidx++) { | |
801 | for (i = 0; i < 3; i++) { | |
802 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
803 | EXT_CSD_GP_SIZE_MULT+pidx*3+i, | |
804 | (gp_size_mult[pidx] >> (i*8)) & 0xFF); | |
805 | if (err) | |
806 | return err; | |
807 | } | |
808 | } | |
809 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
810 | EXT_CSD_PARTITIONS_ATTRIBUTE, part_attrs); | |
811 | if (err) | |
812 | return err; | |
813 | ||
814 | if (mode == MMC_HWPART_CONF_SET) | |
815 | return 0; | |
816 | ||
817 | /* The WR_REL_SET is a write-once register but shall be | |
818 | * written before setting PART_SETTING_COMPLETED. As it is | |
819 | * write-once we can only write it when completing the | |
820 | * partitioning. */ | |
821 | if (wr_rel_set != ext_csd[EXT_CSD_WR_REL_SET]) { | |
822 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
823 | EXT_CSD_WR_REL_SET, wr_rel_set); | |
824 | if (err) | |
825 | return err; | |
826 | } | |
827 | ||
828 | /* Setting PART_SETTING_COMPLETED confirms the partition | |
829 | * configuration but it only becomes effective after power | |
830 | * cycle, so we do not adjust the partition related settings | |
831 | * in the mmc struct. */ | |
832 | ||
833 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
834 | EXT_CSD_PARTITION_SETTING, | |
835 | EXT_CSD_PARTITION_SETTING_COMPLETED); | |
836 | if (err) | |
837 | return err; | |
838 | ||
839 | return 0; | |
840 | } | |
841 | ||
842 | #if !CONFIG_IS_ENABLED(DM_MMC_OPS) | |
843 | int mmc_getcd(struct mmc *mmc) | |
844 | { | |
845 | int cd; | |
846 | ||
847 | cd = board_mmc_getcd(mmc); | |
848 | ||
849 | if (cd < 0) { | |
850 | if (mmc->cfg->ops->getcd) | |
851 | cd = mmc->cfg->ops->getcd(mmc); | |
852 | else | |
853 | cd = 1; | |
854 | } | |
855 | ||
856 | return cd; | |
857 | } | |
858 | #endif | |
859 | ||
860 | static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp) | |
861 | { | |
862 | struct mmc_cmd cmd; | |
863 | struct mmc_data data; | |
864 | ||
865 | /* Switch the frequency */ | |
866 | cmd.cmdidx = SD_CMD_SWITCH_FUNC; | |
867 | cmd.resp_type = MMC_RSP_R1; | |
868 | cmd.cmdarg = (mode << 31) | 0xffffff; | |
869 | cmd.cmdarg &= ~(0xf << (group * 4)); | |
870 | cmd.cmdarg |= value << (group * 4); | |
871 | ||
872 | data.dest = (char *)resp; | |
873 | data.blocksize = 64; | |
874 | data.blocks = 1; | |
875 | data.flags = MMC_DATA_READ; | |
876 | ||
877 | return mmc_send_cmd(mmc, &cmd, &data); | |
878 | } | |
879 | ||
880 | ||
881 | static int sd_change_freq(struct mmc *mmc) | |
882 | { | |
883 | int err; | |
884 | struct mmc_cmd cmd; | |
885 | ALLOC_CACHE_ALIGN_BUFFER(uint, scr, 2); | |
886 | ALLOC_CACHE_ALIGN_BUFFER(uint, switch_status, 16); | |
887 | struct mmc_data data; | |
888 | int timeout; | |
889 | ||
890 | mmc->card_caps = 0; | |
891 | ||
892 | if (mmc_host_is_spi(mmc)) | |
893 | return 0; | |
894 | ||
895 | /* Read the SCR to find out if this card supports higher speeds */ | |
896 | cmd.cmdidx = MMC_CMD_APP_CMD; | |
897 | cmd.resp_type = MMC_RSP_R1; | |
898 | cmd.cmdarg = mmc->rca << 16; | |
899 | ||
900 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
901 | ||
902 | if (err) | |
903 | return err; | |
904 | ||
905 | cmd.cmdidx = SD_CMD_APP_SEND_SCR; | |
906 | cmd.resp_type = MMC_RSP_R1; | |
907 | cmd.cmdarg = 0; | |
908 | ||
909 | timeout = 3; | |
910 | ||
911 | retry_scr: | |
912 | data.dest = (char *)scr; | |
913 | data.blocksize = 8; | |
914 | data.blocks = 1; | |
915 | data.flags = MMC_DATA_READ; | |
916 | ||
917 | err = mmc_send_cmd(mmc, &cmd, &data); | |
918 | ||
919 | if (err) { | |
920 | if (timeout--) | |
921 | goto retry_scr; | |
922 | ||
923 | return err; | |
924 | } | |
925 | ||
926 | mmc->scr[0] = __be32_to_cpu(scr[0]); | |
927 | mmc->scr[1] = __be32_to_cpu(scr[1]); | |
928 | ||
929 | switch ((mmc->scr[0] >> 24) & 0xf) { | |
930 | case 0: | |
931 | mmc->version = SD_VERSION_1_0; | |
932 | break; | |
933 | case 1: | |
934 | mmc->version = SD_VERSION_1_10; | |
935 | break; | |
936 | case 2: | |
937 | mmc->version = SD_VERSION_2; | |
938 | if ((mmc->scr[0] >> 15) & 0x1) | |
939 | mmc->version = SD_VERSION_3; | |
940 | break; | |
941 | default: | |
942 | mmc->version = SD_VERSION_1_0; | |
943 | break; | |
944 | } | |
945 | ||
946 | if (mmc->scr[0] & SD_DATA_4BIT) | |
947 | mmc->card_caps |= MMC_MODE_4BIT; | |
948 | ||
949 | /* Version 1.0 doesn't support switching */ | |
950 | if (mmc->version == SD_VERSION_1_0) | |
951 | return 0; | |
952 | ||
953 | timeout = 4; | |
954 | while (timeout--) { | |
955 | err = sd_switch(mmc, SD_SWITCH_CHECK, 0, 1, | |
956 | (u8 *)switch_status); | |
957 | ||
958 | if (err) | |
959 | return err; | |
960 | ||
961 | /* The high-speed function is busy. Try again */ | |
962 | if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY)) | |
963 | break; | |
964 | } | |
965 | ||
966 | /* If high-speed isn't supported, we return */ | |
967 | if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED)) | |
968 | return 0; | |
969 | ||
970 | /* | |
971 | * If the host doesn't support SD_HIGHSPEED, do not switch card to | |
972 | * HIGHSPEED mode even if the card support SD_HIGHSPPED. | |
973 | * This can avoid furthur problem when the card runs in different | |
974 | * mode between the host. | |
975 | */ | |
976 | if (!((mmc->cfg->host_caps & MMC_MODE_HS_52MHz) && | |
977 | (mmc->cfg->host_caps & MMC_MODE_HS))) | |
978 | return 0; | |
979 | ||
980 | err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)switch_status); | |
981 | ||
982 | if (err) | |
983 | return err; | |
984 | ||
985 | if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000) | |
986 | mmc->card_caps |= MMC_MODE_HS; | |
987 | ||
988 | return 0; | |
989 | } | |
990 | ||
991 | static int sd_read_ssr(struct mmc *mmc) | |
992 | { | |
993 | int err, i; | |
994 | struct mmc_cmd cmd; | |
995 | ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16); | |
996 | struct mmc_data data; | |
997 | int timeout = 3; | |
998 | unsigned int au, eo, et, es; | |
999 | ||
1000 | cmd.cmdidx = MMC_CMD_APP_CMD; | |
1001 | cmd.resp_type = MMC_RSP_R1; | |
1002 | cmd.cmdarg = mmc->rca << 16; | |
1003 | ||
1004 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1005 | if (err) | |
1006 | return err; | |
1007 | ||
1008 | cmd.cmdidx = SD_CMD_APP_SD_STATUS; | |
1009 | cmd.resp_type = MMC_RSP_R1; | |
1010 | cmd.cmdarg = 0; | |
1011 | ||
1012 | retry_ssr: | |
1013 | data.dest = (char *)ssr; | |
1014 | data.blocksize = 64; | |
1015 | data.blocks = 1; | |
1016 | data.flags = MMC_DATA_READ; | |
1017 | ||
1018 | err = mmc_send_cmd(mmc, &cmd, &data); | |
1019 | if (err) { | |
1020 | if (timeout--) | |
1021 | goto retry_ssr; | |
1022 | ||
1023 | return err; | |
1024 | } | |
1025 | ||
1026 | for (i = 0; i < 16; i++) | |
1027 | ssr[i] = be32_to_cpu(ssr[i]); | |
1028 | ||
1029 | au = (ssr[2] >> 12) & 0xF; | |
1030 | if ((au <= 9) || (mmc->version == SD_VERSION_3)) { | |
1031 | mmc->ssr.au = sd_au_size[au]; | |
1032 | es = (ssr[3] >> 24) & 0xFF; | |
1033 | es |= (ssr[2] & 0xFF) << 8; | |
1034 | et = (ssr[3] >> 18) & 0x3F; | |
1035 | if (es && et) { | |
1036 | eo = (ssr[3] >> 16) & 0x3; | |
1037 | mmc->ssr.erase_timeout = (et * 1000) / es; | |
1038 | mmc->ssr.erase_offset = eo * 1000; | |
1039 | } | |
1040 | } else { | |
1041 | debug("Invalid Allocation Unit Size.\n"); | |
1042 | } | |
1043 | ||
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | /* frequency bases */ | |
1048 | /* divided by 10 to be nice to platforms without floating point */ | |
1049 | static const int fbase[] = { | |
1050 | 10000, | |
1051 | 100000, | |
1052 | 1000000, | |
1053 | 10000000, | |
1054 | }; | |
1055 | ||
1056 | /* Multiplier values for TRAN_SPEED. Multiplied by 10 to be nice | |
1057 | * to platforms without floating point. | |
1058 | */ | |
1059 | static const u8 multipliers[] = { | |
1060 | 0, /* reserved */ | |
1061 | 10, | |
1062 | 12, | |
1063 | 13, | |
1064 | 15, | |
1065 | 20, | |
1066 | 25, | |
1067 | 30, | |
1068 | 35, | |
1069 | 40, | |
1070 | 45, | |
1071 | 50, | |
1072 | 55, | |
1073 | 60, | |
1074 | 70, | |
1075 | 80, | |
1076 | }; | |
1077 | ||
1078 | #if !CONFIG_IS_ENABLED(DM_MMC_OPS) | |
1079 | static void mmc_set_ios(struct mmc *mmc) | |
1080 | { | |
1081 | if (mmc->cfg->ops->set_ios) | |
1082 | mmc->cfg->ops->set_ios(mmc); | |
1083 | } | |
1084 | #endif | |
1085 | ||
1086 | void mmc_set_clock(struct mmc *mmc, uint clock) | |
1087 | { | |
1088 | if (clock > mmc->cfg->f_max) | |
1089 | clock = mmc->cfg->f_max; | |
1090 | ||
1091 | if (clock < mmc->cfg->f_min) | |
1092 | clock = mmc->cfg->f_min; | |
1093 | ||
1094 | mmc->clock = clock; | |
1095 | ||
1096 | mmc_set_ios(mmc); | |
1097 | } | |
1098 | ||
1099 | static void mmc_set_bus_width(struct mmc *mmc, uint width) | |
1100 | { | |
1101 | mmc->bus_width = width; | |
1102 | ||
1103 | mmc_set_ios(mmc); | |
1104 | } | |
1105 | ||
1106 | static int mmc_startup(struct mmc *mmc) | |
1107 | { | |
1108 | int err, i; | |
1109 | uint mult, freq; | |
1110 | u64 cmult, csize, capacity; | |
1111 | struct mmc_cmd cmd; | |
1112 | ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); | |
1113 | ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN); | |
1114 | bool has_parts = false; | |
1115 | bool part_completed; | |
1116 | struct blk_desc *bdesc; | |
1117 | ||
1118 | #ifdef CONFIG_MMC_SPI_CRC_ON | |
1119 | if (mmc_host_is_spi(mmc)) { /* enable CRC check for spi */ | |
1120 | cmd.cmdidx = MMC_CMD_SPI_CRC_ON_OFF; | |
1121 | cmd.resp_type = MMC_RSP_R1; | |
1122 | cmd.cmdarg = 1; | |
1123 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1124 | ||
1125 | if (err) | |
1126 | return err; | |
1127 | } | |
1128 | #endif | |
1129 | ||
1130 | /* Put the Card in Identify Mode */ | |
1131 | cmd.cmdidx = mmc_host_is_spi(mmc) ? MMC_CMD_SEND_CID : | |
1132 | MMC_CMD_ALL_SEND_CID; /* cmd not supported in spi */ | |
1133 | cmd.resp_type = MMC_RSP_R2; | |
1134 | cmd.cmdarg = 0; | |
1135 | ||
1136 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1137 | ||
1138 | if (err) | |
1139 | return err; | |
1140 | ||
1141 | memcpy(mmc->cid, cmd.response, 16); | |
1142 | ||
1143 | /* | |
1144 | * For MMC cards, set the Relative Address. | |
1145 | * For SD cards, get the Relatvie Address. | |
1146 | * This also puts the cards into Standby State | |
1147 | */ | |
1148 | if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */ | |
1149 | cmd.cmdidx = SD_CMD_SEND_RELATIVE_ADDR; | |
1150 | cmd.cmdarg = mmc->rca << 16; | |
1151 | cmd.resp_type = MMC_RSP_R6; | |
1152 | ||
1153 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1154 | ||
1155 | if (err) | |
1156 | return err; | |
1157 | ||
1158 | if (IS_SD(mmc)) | |
1159 | mmc->rca = (cmd.response[0] >> 16) & 0xffff; | |
1160 | } | |
1161 | ||
1162 | /* Get the Card-Specific Data */ | |
1163 | cmd.cmdidx = MMC_CMD_SEND_CSD; | |
1164 | cmd.resp_type = MMC_RSP_R2; | |
1165 | cmd.cmdarg = mmc->rca << 16; | |
1166 | ||
1167 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1168 | ||
1169 | if (err) | |
1170 | return err; | |
1171 | ||
1172 | mmc->csd[0] = cmd.response[0]; | |
1173 | mmc->csd[1] = cmd.response[1]; | |
1174 | mmc->csd[2] = cmd.response[2]; | |
1175 | mmc->csd[3] = cmd.response[3]; | |
1176 | ||
1177 | if (mmc->version == MMC_VERSION_UNKNOWN) { | |
1178 | int version = (cmd.response[0] >> 26) & 0xf; | |
1179 | ||
1180 | switch (version) { | |
1181 | case 0: | |
1182 | mmc->version = MMC_VERSION_1_2; | |
1183 | break; | |
1184 | case 1: | |
1185 | mmc->version = MMC_VERSION_1_4; | |
1186 | break; | |
1187 | case 2: | |
1188 | mmc->version = MMC_VERSION_2_2; | |
1189 | break; | |
1190 | case 3: | |
1191 | mmc->version = MMC_VERSION_3; | |
1192 | break; | |
1193 | case 4: | |
1194 | mmc->version = MMC_VERSION_4; | |
1195 | break; | |
1196 | default: | |
1197 | mmc->version = MMC_VERSION_1_2; | |
1198 | break; | |
1199 | } | |
1200 | } | |
1201 | ||
1202 | /* divide frequency by 10, since the mults are 10x bigger */ | |
1203 | freq = fbase[(cmd.response[0] & 0x7)]; | |
1204 | mult = multipliers[((cmd.response[0] >> 3) & 0xf)]; | |
1205 | ||
1206 | mmc->tran_speed = freq * mult; | |
1207 | ||
1208 | mmc->dsr_imp = ((cmd.response[1] >> 12) & 0x1); | |
1209 | mmc->read_bl_len = 1 << ((cmd.response[1] >> 16) & 0xf); | |
1210 | ||
1211 | if (IS_SD(mmc)) | |
1212 | mmc->write_bl_len = mmc->read_bl_len; | |
1213 | else | |
1214 | mmc->write_bl_len = 1 << ((cmd.response[3] >> 22) & 0xf); | |
1215 | ||
1216 | if (mmc->high_capacity) { | |
1217 | csize = (mmc->csd[1] & 0x3f) << 16 | |
1218 | | (mmc->csd[2] & 0xffff0000) >> 16; | |
1219 | cmult = 8; | |
1220 | } else { | |
1221 | csize = (mmc->csd[1] & 0x3ff) << 2 | |
1222 | | (mmc->csd[2] & 0xc0000000) >> 30; | |
1223 | cmult = (mmc->csd[2] & 0x00038000) >> 15; | |
1224 | } | |
1225 | ||
1226 | mmc->capacity_user = (csize + 1) << (cmult + 2); | |
1227 | mmc->capacity_user *= mmc->read_bl_len; | |
1228 | mmc->capacity_boot = 0; | |
1229 | mmc->capacity_rpmb = 0; | |
1230 | for (i = 0; i < 4; i++) | |
1231 | mmc->capacity_gp[i] = 0; | |
1232 | ||
1233 | if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN) | |
1234 | mmc->read_bl_len = MMC_MAX_BLOCK_LEN; | |
1235 | ||
1236 | if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN) | |
1237 | mmc->write_bl_len = MMC_MAX_BLOCK_LEN; | |
1238 | ||
1239 | if ((mmc->dsr_imp) && (0xffffffff != mmc->dsr)) { | |
1240 | cmd.cmdidx = MMC_CMD_SET_DSR; | |
1241 | cmd.cmdarg = (mmc->dsr & 0xffff) << 16; | |
1242 | cmd.resp_type = MMC_RSP_NONE; | |
1243 | if (mmc_send_cmd(mmc, &cmd, NULL)) | |
1244 | printf("MMC: SET_DSR failed\n"); | |
1245 | } | |
1246 | ||
1247 | /* Select the card, and put it into Transfer Mode */ | |
1248 | if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */ | |
1249 | cmd.cmdidx = MMC_CMD_SELECT_CARD; | |
1250 | cmd.resp_type = MMC_RSP_R1; | |
1251 | cmd.cmdarg = mmc->rca << 16; | |
1252 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1253 | ||
1254 | if (err) | |
1255 | return err; | |
1256 | } | |
1257 | ||
1258 | /* | |
1259 | * For SD, its erase group is always one sector | |
1260 | */ | |
1261 | mmc->erase_grp_size = 1; | |
1262 | mmc->part_config = MMCPART_NOAVAILABLE; | |
1263 | if (!IS_SD(mmc) && (mmc->version >= MMC_VERSION_4)) { | |
1264 | /* check ext_csd version and capacity */ | |
1265 | err = mmc_send_ext_csd(mmc, ext_csd); | |
1266 | if (err) | |
1267 | return err; | |
1268 | if (ext_csd[EXT_CSD_REV] >= 2) { | |
1269 | /* | |
1270 | * According to the JEDEC Standard, the value of | |
1271 | * ext_csd's capacity is valid if the value is more | |
1272 | * than 2GB | |
1273 | */ | |
1274 | capacity = ext_csd[EXT_CSD_SEC_CNT] << 0 | |
1275 | | ext_csd[EXT_CSD_SEC_CNT + 1] << 8 | |
1276 | | ext_csd[EXT_CSD_SEC_CNT + 2] << 16 | |
1277 | | ext_csd[EXT_CSD_SEC_CNT + 3] << 24; | |
1278 | capacity *= MMC_MAX_BLOCK_LEN; | |
1279 | if ((capacity >> 20) > 2 * 1024) | |
1280 | mmc->capacity_user = capacity; | |
1281 | } | |
1282 | ||
1283 | switch (ext_csd[EXT_CSD_REV]) { | |
1284 | case 1: | |
1285 | mmc->version = MMC_VERSION_4_1; | |
1286 | break; | |
1287 | case 2: | |
1288 | mmc->version = MMC_VERSION_4_2; | |
1289 | break; | |
1290 | case 3: | |
1291 | mmc->version = MMC_VERSION_4_3; | |
1292 | break; | |
1293 | case 5: | |
1294 | mmc->version = MMC_VERSION_4_41; | |
1295 | break; | |
1296 | case 6: | |
1297 | mmc->version = MMC_VERSION_4_5; | |
1298 | break; | |
1299 | case 7: | |
1300 | mmc->version = MMC_VERSION_5_0; | |
1301 | break; | |
1302 | case 8: | |
1303 | mmc->version = MMC_VERSION_5_1; | |
1304 | break; | |
1305 | } | |
1306 | ||
1307 | /* The partition data may be non-zero but it is only | |
1308 | * effective if PARTITION_SETTING_COMPLETED is set in | |
1309 | * EXT_CSD, so ignore any data if this bit is not set, | |
1310 | * except for enabling the high-capacity group size | |
1311 | * definition (see below). */ | |
1312 | part_completed = !!(ext_csd[EXT_CSD_PARTITION_SETTING] & | |
1313 | EXT_CSD_PARTITION_SETTING_COMPLETED); | |
1314 | ||
1315 | /* store the partition info of emmc */ | |
1316 | mmc->part_support = ext_csd[EXT_CSD_PARTITIONING_SUPPORT]; | |
1317 | if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) || | |
1318 | ext_csd[EXT_CSD_BOOT_MULT]) | |
1319 | mmc->part_config = ext_csd[EXT_CSD_PART_CONF]; | |
1320 | if (part_completed && | |
1321 | (ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & ENHNCD_SUPPORT)) | |
1322 | mmc->part_attr = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE]; | |
1323 | ||
1324 | mmc->capacity_boot = ext_csd[EXT_CSD_BOOT_MULT] << 17; | |
1325 | ||
1326 | mmc->capacity_rpmb = ext_csd[EXT_CSD_RPMB_MULT] << 17; | |
1327 | ||
1328 | for (i = 0; i < 4; i++) { | |
1329 | int idx = EXT_CSD_GP_SIZE_MULT + i * 3; | |
1330 | uint mult = (ext_csd[idx + 2] << 16) + | |
1331 | (ext_csd[idx + 1] << 8) + ext_csd[idx]; | |
1332 | if (mult) | |
1333 | has_parts = true; | |
1334 | if (!part_completed) | |
1335 | continue; | |
1336 | mmc->capacity_gp[i] = mult; | |
1337 | mmc->capacity_gp[i] *= | |
1338 | ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; | |
1339 | mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; | |
1340 | mmc->capacity_gp[i] <<= 19; | |
1341 | } | |
1342 | ||
1343 | if (part_completed) { | |
1344 | mmc->enh_user_size = | |
1345 | (ext_csd[EXT_CSD_ENH_SIZE_MULT+2] << 16) + | |
1346 | (ext_csd[EXT_CSD_ENH_SIZE_MULT+1] << 8) + | |
1347 | ext_csd[EXT_CSD_ENH_SIZE_MULT]; | |
1348 | mmc->enh_user_size *= ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; | |
1349 | mmc->enh_user_size *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; | |
1350 | mmc->enh_user_size <<= 19; | |
1351 | mmc->enh_user_start = | |
1352 | (ext_csd[EXT_CSD_ENH_START_ADDR+3] << 24) + | |
1353 | (ext_csd[EXT_CSD_ENH_START_ADDR+2] << 16) + | |
1354 | (ext_csd[EXT_CSD_ENH_START_ADDR+1] << 8) + | |
1355 | ext_csd[EXT_CSD_ENH_START_ADDR]; | |
1356 | if (mmc->high_capacity) | |
1357 | mmc->enh_user_start <<= 9; | |
1358 | } | |
1359 | ||
1360 | /* | |
1361 | * Host needs to enable ERASE_GRP_DEF bit if device is | |
1362 | * partitioned. This bit will be lost every time after a reset | |
1363 | * or power off. This will affect erase size. | |
1364 | */ | |
1365 | if (part_completed) | |
1366 | has_parts = true; | |
1367 | if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) && | |
1368 | (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & PART_ENH_ATTRIB)) | |
1369 | has_parts = true; | |
1370 | if (has_parts) { | |
1371 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
1372 | EXT_CSD_ERASE_GROUP_DEF, 1); | |
1373 | ||
1374 | if (err) | |
1375 | return err; | |
1376 | else | |
1377 | ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1; | |
1378 | } | |
1379 | ||
1380 | if (ext_csd[EXT_CSD_ERASE_GROUP_DEF] & 0x01) { | |
1381 | /* Read out group size from ext_csd */ | |
1382 | mmc->erase_grp_size = | |
1383 | ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024; | |
1384 | /* | |
1385 | * if high capacity and partition setting completed | |
1386 | * SEC_COUNT is valid even if it is smaller than 2 GiB | |
1387 | * JEDEC Standard JESD84-B45, 6.2.4 | |
1388 | */ | |
1389 | if (mmc->high_capacity && part_completed) { | |
1390 | capacity = (ext_csd[EXT_CSD_SEC_CNT]) | | |
1391 | (ext_csd[EXT_CSD_SEC_CNT + 1] << 8) | | |
1392 | (ext_csd[EXT_CSD_SEC_CNT + 2] << 16) | | |
1393 | (ext_csd[EXT_CSD_SEC_CNT + 3] << 24); | |
1394 | capacity *= MMC_MAX_BLOCK_LEN; | |
1395 | mmc->capacity_user = capacity; | |
1396 | } | |
1397 | } else { | |
1398 | /* Calculate the group size from the csd value. */ | |
1399 | int erase_gsz, erase_gmul; | |
1400 | erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10; | |
1401 | erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5; | |
1402 | mmc->erase_grp_size = (erase_gsz + 1) | |
1403 | * (erase_gmul + 1); | |
1404 | } | |
1405 | ||
1406 | mmc->hc_wp_grp_size = 1024 | |
1407 | * ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] | |
1408 | * ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; | |
1409 | ||
1410 | mmc->wr_rel_set = ext_csd[EXT_CSD_WR_REL_SET]; | |
1411 | } | |
1412 | ||
1413 | err = mmc_set_capacity(mmc, mmc_get_blk_desc(mmc)->hwpart); | |
1414 | if (err) | |
1415 | return err; | |
1416 | ||
1417 | if (IS_SD(mmc)) | |
1418 | err = sd_change_freq(mmc); | |
1419 | else | |
1420 | err = mmc_change_freq(mmc); | |
1421 | ||
1422 | if (err) | |
1423 | return err; | |
1424 | ||
1425 | /* Restrict card's capabilities by what the host can do */ | |
1426 | mmc->card_caps &= mmc->cfg->host_caps; | |
1427 | ||
1428 | if (IS_SD(mmc)) { | |
1429 | if (mmc->card_caps & MMC_MODE_4BIT) { | |
1430 | cmd.cmdidx = MMC_CMD_APP_CMD; | |
1431 | cmd.resp_type = MMC_RSP_R1; | |
1432 | cmd.cmdarg = mmc->rca << 16; | |
1433 | ||
1434 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1435 | if (err) | |
1436 | return err; | |
1437 | ||
1438 | cmd.cmdidx = SD_CMD_APP_SET_BUS_WIDTH; | |
1439 | cmd.resp_type = MMC_RSP_R1; | |
1440 | cmd.cmdarg = 2; | |
1441 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1442 | if (err) | |
1443 | return err; | |
1444 | ||
1445 | mmc_set_bus_width(mmc, 4); | |
1446 | } | |
1447 | ||
1448 | err = sd_read_ssr(mmc); | |
1449 | if (err) | |
1450 | return err; | |
1451 | ||
1452 | if (mmc->card_caps & MMC_MODE_HS) | |
1453 | mmc->tran_speed = 50000000; | |
1454 | else | |
1455 | mmc->tran_speed = 25000000; | |
1456 | } else if (mmc->version >= MMC_VERSION_4) { | |
1457 | /* Only version 4 of MMC supports wider bus widths */ | |
1458 | int idx; | |
1459 | ||
1460 | /* An array of possible bus widths in order of preference */ | |
1461 | static unsigned ext_csd_bits[] = { | |
1462 | EXT_CSD_DDR_BUS_WIDTH_8, | |
1463 | EXT_CSD_DDR_BUS_WIDTH_4, | |
1464 | EXT_CSD_BUS_WIDTH_8, | |
1465 | EXT_CSD_BUS_WIDTH_4, | |
1466 | EXT_CSD_BUS_WIDTH_1, | |
1467 | }; | |
1468 | ||
1469 | /* An array to map CSD bus widths to host cap bits */ | |
1470 | static unsigned ext_to_hostcaps[] = { | |
1471 | [EXT_CSD_DDR_BUS_WIDTH_4] = | |
1472 | MMC_MODE_DDR_52MHz | MMC_MODE_4BIT, | |
1473 | [EXT_CSD_DDR_BUS_WIDTH_8] = | |
1474 | MMC_MODE_DDR_52MHz | MMC_MODE_8BIT, | |
1475 | [EXT_CSD_BUS_WIDTH_4] = MMC_MODE_4BIT, | |
1476 | [EXT_CSD_BUS_WIDTH_8] = MMC_MODE_8BIT, | |
1477 | }; | |
1478 | ||
1479 | /* An array to map chosen bus width to an integer */ | |
1480 | static unsigned widths[] = { | |
1481 | 8, 4, 8, 4, 1, | |
1482 | }; | |
1483 | ||
1484 | for (idx=0; idx < ARRAY_SIZE(ext_csd_bits); idx++) { | |
1485 | unsigned int extw = ext_csd_bits[idx]; | |
1486 | unsigned int caps = ext_to_hostcaps[extw]; | |
1487 | ||
1488 | /* | |
1489 | * If the bus width is still not changed, | |
1490 | * don't try to set the default again. | |
1491 | * Otherwise, recover from switch attempts | |
1492 | * by switching to 1-bit bus width. | |
1493 | */ | |
1494 | if (extw == EXT_CSD_BUS_WIDTH_1 && | |
1495 | mmc->bus_width == 1) { | |
1496 | err = 0; | |
1497 | break; | |
1498 | } | |
1499 | ||
1500 | /* | |
1501 | * Check to make sure the card and controller support | |
1502 | * these capabilities | |
1503 | */ | |
1504 | if ((mmc->card_caps & caps) != caps) | |
1505 | continue; | |
1506 | ||
1507 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, | |
1508 | EXT_CSD_BUS_WIDTH, extw); | |
1509 | ||
1510 | if (err) | |
1511 | continue; | |
1512 | ||
1513 | mmc->ddr_mode = (caps & MMC_MODE_DDR_52MHz) ? 1 : 0; | |
1514 | mmc_set_bus_width(mmc, widths[idx]); | |
1515 | ||
1516 | err = mmc_send_ext_csd(mmc, test_csd); | |
1517 | ||
1518 | if (err) | |
1519 | continue; | |
1520 | ||
1521 | /* Only compare read only fields */ | |
1522 | if (ext_csd[EXT_CSD_PARTITIONING_SUPPORT] | |
1523 | == test_csd[EXT_CSD_PARTITIONING_SUPPORT] && | |
1524 | ext_csd[EXT_CSD_HC_WP_GRP_SIZE] | |
1525 | == test_csd[EXT_CSD_HC_WP_GRP_SIZE] && | |
1526 | ext_csd[EXT_CSD_REV] | |
1527 | == test_csd[EXT_CSD_REV] && | |
1528 | ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] | |
1529 | == test_csd[EXT_CSD_HC_ERASE_GRP_SIZE] && | |
1530 | memcmp(&ext_csd[EXT_CSD_SEC_CNT], | |
1531 | &test_csd[EXT_CSD_SEC_CNT], 4) == 0) | |
1532 | break; | |
1533 | else | |
1534 | err = -EBADMSG; | |
1535 | } | |
1536 | ||
1537 | if (err) | |
1538 | return err; | |
1539 | ||
1540 | if (mmc->card_caps & MMC_MODE_HS) { | |
1541 | if (mmc->card_caps & MMC_MODE_HS_52MHz) | |
1542 | mmc->tran_speed = 52000000; | |
1543 | else | |
1544 | mmc->tran_speed = 26000000; | |
1545 | } | |
1546 | } | |
1547 | ||
1548 | mmc_set_clock(mmc, mmc->tran_speed); | |
1549 | ||
1550 | /* Fix the block length for DDR mode */ | |
1551 | if (mmc->ddr_mode) { | |
1552 | mmc->read_bl_len = MMC_MAX_BLOCK_LEN; | |
1553 | mmc->write_bl_len = MMC_MAX_BLOCK_LEN; | |
1554 | } | |
1555 | ||
1556 | /* fill in device description */ | |
1557 | bdesc = mmc_get_blk_desc(mmc); | |
1558 | bdesc->lun = 0; | |
1559 | bdesc->hwpart = 0; | |
1560 | bdesc->type = 0; | |
1561 | bdesc->blksz = mmc->read_bl_len; | |
1562 | bdesc->log2blksz = LOG2(bdesc->blksz); | |
1563 | bdesc->lba = lldiv(mmc->capacity, mmc->read_bl_len); | |
1564 | #if !defined(CONFIG_SPL_BUILD) || \ | |
1565 | (defined(CONFIG_SPL_LIBCOMMON_SUPPORT) && \ | |
1566 | !defined(CONFIG_USE_TINY_PRINTF)) | |
1567 | sprintf(bdesc->vendor, "Man %06x Snr %04x%04x", | |
1568 | mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff), | |
1569 | (mmc->cid[3] >> 16) & 0xffff); | |
1570 | sprintf(bdesc->product, "%c%c%c%c%c%c", mmc->cid[0] & 0xff, | |
1571 | (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff, | |
1572 | (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff, | |
1573 | (mmc->cid[2] >> 24) & 0xff); | |
1574 | sprintf(bdesc->revision, "%d.%d", (mmc->cid[2] >> 20) & 0xf, | |
1575 | (mmc->cid[2] >> 16) & 0xf); | |
1576 | #else | |
1577 | bdesc->vendor[0] = 0; | |
1578 | bdesc->product[0] = 0; | |
1579 | bdesc->revision[0] = 0; | |
1580 | #endif | |
1581 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBDISK_SUPPORT) | |
1582 | part_init(bdesc); | |
1583 | #endif | |
1584 | ||
1585 | return 0; | |
1586 | } | |
1587 | ||
1588 | static int mmc_send_if_cond(struct mmc *mmc) | |
1589 | { | |
1590 | struct mmc_cmd cmd; | |
1591 | int err; | |
1592 | ||
1593 | cmd.cmdidx = SD_CMD_SEND_IF_COND; | |
1594 | /* We set the bit if the host supports voltages between 2.7 and 3.6 V */ | |
1595 | cmd.cmdarg = ((mmc->cfg->voltages & 0xff8000) != 0) << 8 | 0xaa; | |
1596 | cmd.resp_type = MMC_RSP_R7; | |
1597 | ||
1598 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1599 | ||
1600 | if (err) | |
1601 | return err; | |
1602 | ||
1603 | if ((cmd.response[0] & 0xff) != 0xaa) | |
1604 | return -EOPNOTSUPP; | |
1605 | else | |
1606 | mmc->version = SD_VERSION_2; | |
1607 | ||
1608 | return 0; | |
1609 | } | |
1610 | ||
1611 | #if !CONFIG_IS_ENABLED(DM_MMC) | |
1612 | /* board-specific MMC power initializations. */ | |
1613 | __weak void board_mmc_power_init(void) | |
1614 | { | |
1615 | } | |
1616 | #endif | |
1617 | ||
1618 | static int mmc_power_init(struct mmc *mmc) | |
1619 | { | |
1620 | #if CONFIG_IS_ENABLED(DM_MMC) | |
1621 | #if defined(CONFIG_DM_REGULATOR) && !defined(CONFIG_SPL_BUILD) | |
1622 | struct udevice *vmmc_supply; | |
1623 | int ret; | |
1624 | ||
1625 | ret = device_get_supply_regulator(mmc->dev, "vmmc-supply", | |
1626 | &vmmc_supply); | |
1627 | if (ret) { | |
1628 | debug("%s: No vmmc supply\n", mmc->dev->name); | |
1629 | return 0; | |
1630 | } | |
1631 | ||
1632 | ret = regulator_set_enable(vmmc_supply, true); | |
1633 | if (ret) { | |
1634 | puts("Error enabling VMMC supply\n"); | |
1635 | return ret; | |
1636 | } | |
1637 | #endif | |
1638 | #else /* !CONFIG_DM_MMC */ | |
1639 | /* | |
1640 | * Driver model should use a regulator, as above, rather than calling | |
1641 | * out to board code. | |
1642 | */ | |
1643 | board_mmc_power_init(); | |
1644 | #endif | |
1645 | return 0; | |
1646 | } | |
1647 | ||
1648 | int mmc_start_init(struct mmc *mmc) | |
1649 | { | |
1650 | bool no_card; | |
1651 | int err; | |
1652 | ||
1653 | /* we pretend there's no card when init is NULL */ | |
1654 | no_card = mmc_getcd(mmc) == 0; | |
1655 | #if !CONFIG_IS_ENABLED(DM_MMC_OPS) | |
1656 | no_card = no_card || (mmc->cfg->ops->init == NULL); | |
1657 | #endif | |
1658 | if (no_card) { | |
1659 | mmc->has_init = 0; | |
1660 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) | |
1661 | printf("MMC: no card present\n"); | |
1662 | #endif | |
1663 | return -ENOMEDIUM; | |
1664 | } | |
1665 | ||
1666 | if (mmc->has_init) | |
1667 | return 0; | |
1668 | ||
1669 | #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT | |
1670 | mmc_adapter_card_type_ident(); | |
1671 | #endif | |
1672 | err = mmc_power_init(mmc); | |
1673 | if (err) | |
1674 | return err; | |
1675 | ||
1676 | #if CONFIG_IS_ENABLED(DM_MMC_OPS) | |
1677 | /* The device has already been probed ready for use */ | |
1678 | #else | |
1679 | /* made sure it's not NULL earlier */ | |
1680 | err = mmc->cfg->ops->init(mmc); | |
1681 | if (err) | |
1682 | return err; | |
1683 | #endif | |
1684 | mmc->ddr_mode = 0; | |
1685 | mmc_set_bus_width(mmc, 1); | |
1686 | mmc_set_clock(mmc, 1); | |
1687 | ||
1688 | /* Reset the Card */ | |
1689 | err = mmc_go_idle(mmc); | |
1690 | ||
1691 | if (err) | |
1692 | return err; | |
1693 | ||
1694 | /* The internal partition reset to user partition(0) at every CMD0*/ | |
1695 | mmc_get_blk_desc(mmc)->hwpart = 0; | |
1696 | ||
1697 | /* Test for SD version 2 */ | |
1698 | err = mmc_send_if_cond(mmc); | |
1699 | ||
1700 | /* Now try to get the SD card's operating condition */ | |
1701 | err = sd_send_op_cond(mmc); | |
1702 | ||
1703 | /* If the command timed out, we check for an MMC card */ | |
1704 | if (err == -ETIMEDOUT) { | |
1705 | err = mmc_send_op_cond(mmc); | |
1706 | ||
1707 | if (err) { | |
1708 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) | |
1709 | printf("Card did not respond to voltage select!\n"); | |
1710 | #endif | |
1711 | return -EOPNOTSUPP; | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | if (!err) | |
1716 | mmc->init_in_progress = 1; | |
1717 | ||
1718 | return err; | |
1719 | } | |
1720 | ||
1721 | static int mmc_complete_init(struct mmc *mmc) | |
1722 | { | |
1723 | int err = 0; | |
1724 | ||
1725 | mmc->init_in_progress = 0; | |
1726 | if (mmc->op_cond_pending) | |
1727 | err = mmc_complete_op_cond(mmc); | |
1728 | ||
1729 | if (!err) | |
1730 | err = mmc_startup(mmc); | |
1731 | if (err) | |
1732 | mmc->has_init = 0; | |
1733 | else | |
1734 | mmc->has_init = 1; | |
1735 | return err; | |
1736 | } | |
1737 | ||
1738 | int mmc_init(struct mmc *mmc) | |
1739 | { | |
1740 | int err = 0; | |
1741 | __maybe_unused unsigned start; | |
1742 | #if CONFIG_IS_ENABLED(DM_MMC) | |
1743 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc->dev); | |
1744 | ||
1745 | upriv->mmc = mmc; | |
1746 | #endif | |
1747 | if (mmc->has_init) | |
1748 | return 0; | |
1749 | ||
1750 | start = get_timer(0); | |
1751 | ||
1752 | if (!mmc->init_in_progress) | |
1753 | err = mmc_start_init(mmc); | |
1754 | ||
1755 | if (!err) | |
1756 | err = mmc_complete_init(mmc); | |
1757 | if (err) | |
1758 | printf("%s: %d, time %lu\n", __func__, err, get_timer(start)); | |
1759 | ||
1760 | return err; | |
1761 | } | |
1762 | ||
1763 | int mmc_set_dsr(struct mmc *mmc, u16 val) | |
1764 | { | |
1765 | mmc->dsr = val; | |
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | /* CPU-specific MMC initializations */ | |
1770 | __weak int cpu_mmc_init(bd_t *bis) | |
1771 | { | |
1772 | return -1; | |
1773 | } | |
1774 | ||
1775 | /* board-specific MMC initializations. */ | |
1776 | __weak int board_mmc_init(bd_t *bis) | |
1777 | { | |
1778 | return -1; | |
1779 | } | |
1780 | ||
1781 | void mmc_set_preinit(struct mmc *mmc, int preinit) | |
1782 | { | |
1783 | mmc->preinit = preinit; | |
1784 | } | |
1785 | ||
1786 | #if CONFIG_IS_ENABLED(DM_MMC) && defined(CONFIG_SPL_BUILD) | |
1787 | static int mmc_probe(bd_t *bis) | |
1788 | { | |
1789 | return 0; | |
1790 | } | |
1791 | #elif CONFIG_IS_ENABLED(DM_MMC) | |
1792 | static int mmc_probe(bd_t *bis) | |
1793 | { | |
1794 | int ret, i; | |
1795 | struct uclass *uc; | |
1796 | struct udevice *dev; | |
1797 | ||
1798 | ret = uclass_get(UCLASS_MMC, &uc); | |
1799 | if (ret) | |
1800 | return ret; | |
1801 | ||
1802 | /* | |
1803 | * Try to add them in sequence order. Really with driver model we | |
1804 | * should allow holes, but the current MMC list does not allow that. | |
1805 | * So if we request 0, 1, 3 we will get 0, 1, 2. | |
1806 | */ | |
1807 | for (i = 0; ; i++) { | |
1808 | ret = uclass_get_device_by_seq(UCLASS_MMC, i, &dev); | |
1809 | if (ret == -ENODEV) | |
1810 | break; | |
1811 | } | |
1812 | uclass_foreach_dev(dev, uc) { | |
1813 | ret = device_probe(dev); | |
1814 | if (ret) | |
1815 | printf("%s - probe failed: %d\n", dev->name, ret); | |
1816 | } | |
1817 | ||
1818 | return 0; | |
1819 | } | |
1820 | #else | |
1821 | static int mmc_probe(bd_t *bis) | |
1822 | { | |
1823 | if (board_mmc_init(bis) < 0) | |
1824 | cpu_mmc_init(bis); | |
1825 | ||
1826 | return 0; | |
1827 | } | |
1828 | #endif | |
1829 | ||
1830 | int mmc_initialize(bd_t *bis) | |
1831 | { | |
1832 | static int initialized = 0; | |
1833 | int ret; | |
1834 | if (initialized) /* Avoid initializing mmc multiple times */ | |
1835 | return 0; | |
1836 | initialized = 1; | |
1837 | ||
1838 | #if !CONFIG_IS_ENABLED(BLK) | |
1839 | #if !CONFIG_IS_ENABLED(MMC_TINY) | |
1840 | mmc_list_init(); | |
1841 | #endif | |
1842 | #endif | |
1843 | ret = mmc_probe(bis); | |
1844 | if (ret) | |
1845 | return ret; | |
1846 | ||
1847 | #ifndef CONFIG_SPL_BUILD | |
1848 | print_mmc_devices(','); | |
1849 | #endif | |
1850 | ||
1851 | mmc_do_preinit(); | |
1852 | return 0; | |
1853 | } | |
1854 | ||
1855 | #ifdef CONFIG_CMD_BKOPS_ENABLE | |
1856 | int mmc_set_bkops_enable(struct mmc *mmc) | |
1857 | { | |
1858 | int err; | |
1859 | ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); | |
1860 | ||
1861 | err = mmc_send_ext_csd(mmc, ext_csd); | |
1862 | if (err) { | |
1863 | puts("Could not get ext_csd register values\n"); | |
1864 | return err; | |
1865 | } | |
1866 | ||
1867 | if (!(ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1)) { | |
1868 | puts("Background operations not supported on device\n"); | |
1869 | return -EMEDIUMTYPE; | |
1870 | } | |
1871 | ||
1872 | if (ext_csd[EXT_CSD_BKOPS_EN] & 0x1) { | |
1873 | puts("Background operations already enabled\n"); | |
1874 | return 0; | |
1875 | } | |
1876 | ||
1877 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BKOPS_EN, 1); | |
1878 | if (err) { | |
1879 | puts("Failed to enable manual background operations\n"); | |
1880 | return err; | |
1881 | } | |
1882 | ||
1883 | puts("Enabled manual background operations\n"); | |
1884 | ||
1885 | return 0; | |
1886 | } | |
1887 | #endif |