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272cc70b AF |
1 | /* |
2 | * Copyright 2008, Freescale Semiconductor, Inc | |
3 | * Andy Fleming | |
4 | * | |
5 | * Based vaguely on the Linux code | |
6 | * | |
7 | * See file CREDITS for list of people who contributed to this | |
8 | * project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
23 | * MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | #include <config.h> | |
27 | #include <common.h> | |
28 | #include <command.h> | |
29 | #include <mmc.h> | |
30 | #include <part.h> | |
31 | #include <malloc.h> | |
32 | #include <linux/list.h> | |
9b1f942c | 33 | #include <div64.h> |
272cc70b | 34 | |
ce0fbcd2 MW |
35 | /* Set block count limit because of 16 bit register limit on some hardware*/ |
36 | #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT | |
37 | #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535 | |
38 | #endif | |
39 | ||
272cc70b AF |
40 | static struct list_head mmc_devices; |
41 | static int cur_dev_num = -1; | |
42 | ||
d23d8d7e NK |
43 | int __weak board_mmc_getwp(struct mmc *mmc) |
44 | { | |
45 | return -1; | |
46 | } | |
47 | ||
48 | int mmc_getwp(struct mmc *mmc) | |
49 | { | |
50 | int wp; | |
51 | ||
52 | wp = board_mmc_getwp(mmc); | |
53 | ||
d4e1da4e PK |
54 | if (wp < 0) { |
55 | if (mmc->getwp) | |
56 | wp = mmc->getwp(mmc); | |
57 | else | |
58 | wp = 0; | |
59 | } | |
d23d8d7e NK |
60 | |
61 | return wp; | |
62 | } | |
63 | ||
314284b1 | 64 | int __board_mmc_getcd(struct mmc *mmc) { |
11fdade2 SB |
65 | return -1; |
66 | } | |
67 | ||
314284b1 | 68 | int board_mmc_getcd(struct mmc *mmc)__attribute__((weak, |
11fdade2 SB |
69 | alias("__board_mmc_getcd"))); |
70 | ||
fdbb873e KP |
71 | static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, |
72 | struct mmc_data *data) | |
272cc70b | 73 | { |
8635ff9e | 74 | struct mmc_data backup; |
5db2fe3a | 75 | int ret; |
8635ff9e MV |
76 | |
77 | memset(&backup, 0, sizeof(backup)); | |
78 | ||
8635ff9e | 79 | #ifdef CONFIG_MMC_TRACE |
5db2fe3a RR |
80 | int i; |
81 | u8 *ptr; | |
82 | ||
83 | printf("CMD_SEND:%d\n", cmd->cmdidx); | |
84 | printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg); | |
5db2fe3a RR |
85 | ret = mmc->send_cmd(mmc, cmd, data); |
86 | switch (cmd->resp_type) { | |
87 | case MMC_RSP_NONE: | |
88 | printf("\t\tMMC_RSP_NONE\n"); | |
89 | break; | |
90 | case MMC_RSP_R1: | |
91 | printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08X \n", | |
92 | cmd->response[0]); | |
93 | break; | |
94 | case MMC_RSP_R1b: | |
95 | printf("\t\tMMC_RSP_R1b\t\t 0x%08X \n", | |
96 | cmd->response[0]); | |
97 | break; | |
98 | case MMC_RSP_R2: | |
99 | printf("\t\tMMC_RSP_R2\t\t 0x%08X \n", | |
100 | cmd->response[0]); | |
101 | printf("\t\t \t\t 0x%08X \n", | |
102 | cmd->response[1]); | |
103 | printf("\t\t \t\t 0x%08X \n", | |
104 | cmd->response[2]); | |
105 | printf("\t\t \t\t 0x%08X \n", | |
106 | cmd->response[3]); | |
107 | printf("\n"); | |
108 | printf("\t\t\t\t\tDUMPING DATA\n"); | |
109 | for (i = 0; i < 4; i++) { | |
110 | int j; | |
111 | printf("\t\t\t\t\t%03d - ", i*4); | |
146bec79 | 112 | ptr = (u8 *)&cmd->response[i]; |
5db2fe3a RR |
113 | ptr += 3; |
114 | for (j = 0; j < 4; j++) | |
115 | printf("%02X ", *ptr--); | |
116 | printf("\n"); | |
117 | } | |
118 | break; | |
119 | case MMC_RSP_R3: | |
120 | printf("\t\tMMC_RSP_R3,4\t\t 0x%08X \n", | |
121 | cmd->response[0]); | |
122 | break; | |
123 | default: | |
124 | printf("\t\tERROR MMC rsp not supported\n"); | |
125 | break; | |
126 | } | |
5db2fe3a | 127 | #else |
8635ff9e | 128 | ret = mmc->send_cmd(mmc, cmd, data); |
5db2fe3a | 129 | #endif |
8635ff9e | 130 | return ret; |
272cc70b AF |
131 | } |
132 | ||
fdbb873e | 133 | static int mmc_send_status(struct mmc *mmc, int timeout) |
5d4fc8d9 RR |
134 | { |
135 | struct mmc_cmd cmd; | |
d617c426 | 136 | int err, retries = 5; |
5d4fc8d9 RR |
137 | #ifdef CONFIG_MMC_TRACE |
138 | int status; | |
139 | #endif | |
140 | ||
141 | cmd.cmdidx = MMC_CMD_SEND_STATUS; | |
142 | cmd.resp_type = MMC_RSP_R1; | |
aaf3d41a MV |
143 | if (!mmc_host_is_spi(mmc)) |
144 | cmd.cmdarg = mmc->rca << 16; | |
5d4fc8d9 RR |
145 | |
146 | do { | |
147 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
d617c426 JK |
148 | if (!err) { |
149 | if ((cmd.response[0] & MMC_STATUS_RDY_FOR_DATA) && | |
150 | (cmd.response[0] & MMC_STATUS_CURR_STATE) != | |
151 | MMC_STATE_PRG) | |
152 | break; | |
153 | else if (cmd.response[0] & MMC_STATUS_MASK) { | |
154 | printf("Status Error: 0x%08X\n", | |
155 | cmd.response[0]); | |
156 | return COMM_ERR; | |
157 | } | |
158 | } else if (--retries < 0) | |
5d4fc8d9 | 159 | return err; |
5d4fc8d9 RR |
160 | |
161 | udelay(1000); | |
162 | ||
5d4fc8d9 RR |
163 | } while (timeout--); |
164 | ||
5db2fe3a RR |
165 | #ifdef CONFIG_MMC_TRACE |
166 | status = (cmd.response[0] & MMC_STATUS_CURR_STATE) >> 9; | |
167 | printf("CURR STATE:%d\n", status); | |
168 | #endif | |
5b0c942f | 169 | if (timeout <= 0) { |
5d4fc8d9 RR |
170 | printf("Timeout waiting card ready\n"); |
171 | return TIMEOUT; | |
172 | } | |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
fdbb873e | 177 | static int mmc_set_blocklen(struct mmc *mmc, int len) |
272cc70b AF |
178 | { |
179 | struct mmc_cmd cmd; | |
180 | ||
181 | cmd.cmdidx = MMC_CMD_SET_BLOCKLEN; | |
182 | cmd.resp_type = MMC_RSP_R1; | |
183 | cmd.cmdarg = len; | |
272cc70b AF |
184 | |
185 | return mmc_send_cmd(mmc, &cmd, NULL); | |
186 | } | |
187 | ||
188 | struct mmc *find_mmc_device(int dev_num) | |
189 | { | |
190 | struct mmc *m; | |
191 | struct list_head *entry; | |
192 | ||
193 | list_for_each(entry, &mmc_devices) { | |
194 | m = list_entry(entry, struct mmc, link); | |
195 | ||
196 | if (m->block_dev.dev == dev_num) | |
197 | return m; | |
198 | } | |
199 | ||
200 | printf("MMC Device %d not found\n", dev_num); | |
201 | ||
202 | return NULL; | |
203 | } | |
204 | ||
e6f99a56 LW |
205 | static ulong mmc_erase_t(struct mmc *mmc, ulong start, lbaint_t blkcnt) |
206 | { | |
207 | struct mmc_cmd cmd; | |
208 | ulong end; | |
209 | int err, start_cmd, end_cmd; | |
210 | ||
211 | if (mmc->high_capacity) | |
212 | end = start + blkcnt - 1; | |
213 | else { | |
214 | end = (start + blkcnt - 1) * mmc->write_bl_len; | |
215 | start *= mmc->write_bl_len; | |
216 | } | |
217 | ||
218 | if (IS_SD(mmc)) { | |
219 | start_cmd = SD_CMD_ERASE_WR_BLK_START; | |
220 | end_cmd = SD_CMD_ERASE_WR_BLK_END; | |
221 | } else { | |
222 | start_cmd = MMC_CMD_ERASE_GROUP_START; | |
223 | end_cmd = MMC_CMD_ERASE_GROUP_END; | |
224 | } | |
225 | ||
226 | cmd.cmdidx = start_cmd; | |
227 | cmd.cmdarg = start; | |
228 | cmd.resp_type = MMC_RSP_R1; | |
e6f99a56 LW |
229 | |
230 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
231 | if (err) | |
232 | goto err_out; | |
233 | ||
234 | cmd.cmdidx = end_cmd; | |
235 | cmd.cmdarg = end; | |
236 | ||
237 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
238 | if (err) | |
239 | goto err_out; | |
240 | ||
241 | cmd.cmdidx = MMC_CMD_ERASE; | |
242 | cmd.cmdarg = SECURE_ERASE; | |
243 | cmd.resp_type = MMC_RSP_R1b; | |
244 | ||
245 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
246 | if (err) | |
247 | goto err_out; | |
248 | ||
249 | return 0; | |
250 | ||
251 | err_out: | |
252 | puts("mmc erase failed\n"); | |
253 | return err; | |
254 | } | |
255 | ||
256 | static unsigned long | |
ff8fef56 | 257 | mmc_berase(int dev_num, lbaint_t start, lbaint_t blkcnt) |
e6f99a56 LW |
258 | { |
259 | int err = 0; | |
260 | struct mmc *mmc = find_mmc_device(dev_num); | |
261 | lbaint_t blk = 0, blk_r = 0; | |
d2d8afae | 262 | int timeout = 1000; |
e6f99a56 LW |
263 | |
264 | if (!mmc) | |
265 | return -1; | |
266 | ||
267 | if ((start % mmc->erase_grp_size) || (blkcnt % mmc->erase_grp_size)) | |
268 | printf("\n\nCaution! Your devices Erase group is 0x%x\n" | |
ff8fef56 SS |
269 | "The erase range would be change to " |
270 | "0x" LBAF "~0x" LBAF "\n\n", | |
e6f99a56 LW |
271 | mmc->erase_grp_size, start & ~(mmc->erase_grp_size - 1), |
272 | ((start + blkcnt + mmc->erase_grp_size) | |
273 | & ~(mmc->erase_grp_size - 1)) - 1); | |
274 | ||
275 | while (blk < blkcnt) { | |
276 | blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ? | |
277 | mmc->erase_grp_size : (blkcnt - blk); | |
278 | err = mmc_erase_t(mmc, start + blk, blk_r); | |
279 | if (err) | |
280 | break; | |
281 | ||
282 | blk += blk_r; | |
d2d8afae JH |
283 | |
284 | /* Waiting for the ready status */ | |
285 | if (mmc_send_status(mmc, timeout)) | |
286 | return 0; | |
e6f99a56 LW |
287 | } |
288 | ||
289 | return blk; | |
290 | } | |
291 | ||
272cc70b | 292 | static ulong |
ff8fef56 | 293 | mmc_write_blocks(struct mmc *mmc, lbaint_t start, lbaint_t blkcnt, const void*src) |
272cc70b AF |
294 | { |
295 | struct mmc_cmd cmd; | |
296 | struct mmc_data data; | |
5d4fc8d9 | 297 | int timeout = 1000; |
272cc70b | 298 | |
d2bf29e3 | 299 | if ((start + blkcnt) > mmc->block_dev.lba) { |
ff8fef56 | 300 | printf("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n", |
d2bf29e3 LW |
301 | start + blkcnt, mmc->block_dev.lba); |
302 | return 0; | |
303 | } | |
272cc70b | 304 | |
a586c0aa RC |
305 | if (blkcnt == 0) |
306 | return 0; | |
307 | else if (blkcnt == 1) | |
272cc70b | 308 | cmd.cmdidx = MMC_CMD_WRITE_SINGLE_BLOCK; |
a586c0aa RC |
309 | else |
310 | cmd.cmdidx = MMC_CMD_WRITE_MULTIPLE_BLOCK; | |
272cc70b AF |
311 | |
312 | if (mmc->high_capacity) | |
313 | cmd.cmdarg = start; | |
314 | else | |
def412b6 | 315 | cmd.cmdarg = start * mmc->write_bl_len; |
272cc70b AF |
316 | |
317 | cmd.resp_type = MMC_RSP_R1; | |
272cc70b AF |
318 | |
319 | data.src = src; | |
320 | data.blocks = blkcnt; | |
def412b6 | 321 | data.blocksize = mmc->write_bl_len; |
272cc70b AF |
322 | data.flags = MMC_DATA_WRITE; |
323 | ||
def412b6 SS |
324 | if (mmc_send_cmd(mmc, &cmd, &data)) { |
325 | printf("mmc write failed\n"); | |
326 | return 0; | |
272cc70b AF |
327 | } |
328 | ||
d52ebf10 TC |
329 | /* SPI multiblock writes terminate using a special |
330 | * token, not a STOP_TRANSMISSION request. | |
331 | */ | |
332 | if (!mmc_host_is_spi(mmc) && blkcnt > 1) { | |
272cc70b AF |
333 | cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION; |
334 | cmd.cmdarg = 0; | |
335 | cmd.resp_type = MMC_RSP_R1b; | |
def412b6 SS |
336 | if (mmc_send_cmd(mmc, &cmd, NULL)) { |
337 | printf("mmc fail to send stop cmd\n"); | |
338 | return 0; | |
0158126e | 339 | } |
272cc70b AF |
340 | } |
341 | ||
93ad0d18 JK |
342 | /* Waiting for the ready status */ |
343 | if (mmc_send_status(mmc, timeout)) | |
344 | return 0; | |
345 | ||
272cc70b AF |
346 | return blkcnt; |
347 | } | |
348 | ||
0158126e | 349 | static ulong |
ff8fef56 | 350 | mmc_bwrite(int dev_num, lbaint_t start, lbaint_t blkcnt, const void*src) |
0158126e | 351 | { |
0158126e LW |
352 | lbaint_t cur, blocks_todo = blkcnt; |
353 | ||
def412b6 | 354 | struct mmc *mmc = find_mmc_device(dev_num); |
0158126e | 355 | if (!mmc) |
def412b6 | 356 | return 0; |
0158126e | 357 | |
def412b6 SS |
358 | if (mmc_set_blocklen(mmc, mmc->write_bl_len)) |
359 | return 0; | |
0158126e LW |
360 | |
361 | do { | |
8feafcc4 | 362 | cur = (blocks_todo > mmc->b_max) ? mmc->b_max : blocks_todo; |
0158126e | 363 | if(mmc_write_blocks(mmc, start, cur, src) != cur) |
def412b6 | 364 | return 0; |
0158126e LW |
365 | blocks_todo -= cur; |
366 | start += cur; | |
367 | src += cur * mmc->write_bl_len; | |
368 | } while (blocks_todo > 0); | |
369 | ||
370 | return blkcnt; | |
371 | } | |
372 | ||
ff8fef56 | 373 | static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start, |
fdbb873e | 374 | lbaint_t blkcnt) |
272cc70b AF |
375 | { |
376 | struct mmc_cmd cmd; | |
377 | struct mmc_data data; | |
378 | ||
4a1a06bc AS |
379 | if (blkcnt > 1) |
380 | cmd.cmdidx = MMC_CMD_READ_MULTIPLE_BLOCK; | |
381 | else | |
382 | cmd.cmdidx = MMC_CMD_READ_SINGLE_BLOCK; | |
272cc70b AF |
383 | |
384 | if (mmc->high_capacity) | |
4a1a06bc | 385 | cmd.cmdarg = start; |
272cc70b | 386 | else |
4a1a06bc | 387 | cmd.cmdarg = start * mmc->read_bl_len; |
272cc70b AF |
388 | |
389 | cmd.resp_type = MMC_RSP_R1; | |
272cc70b AF |
390 | |
391 | data.dest = dst; | |
4a1a06bc | 392 | data.blocks = blkcnt; |
272cc70b AF |
393 | data.blocksize = mmc->read_bl_len; |
394 | data.flags = MMC_DATA_READ; | |
395 | ||
4a1a06bc AS |
396 | if (mmc_send_cmd(mmc, &cmd, &data)) |
397 | return 0; | |
272cc70b | 398 | |
4a1a06bc AS |
399 | if (blkcnt > 1) { |
400 | cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION; | |
401 | cmd.cmdarg = 0; | |
402 | cmd.resp_type = MMC_RSP_R1b; | |
4a1a06bc AS |
403 | if (mmc_send_cmd(mmc, &cmd, NULL)) { |
404 | printf("mmc fail to send stop cmd\n"); | |
405 | return 0; | |
406 | } | |
272cc70b AF |
407 | } |
408 | ||
4a1a06bc | 409 | return blkcnt; |
272cc70b AF |
410 | } |
411 | ||
ff8fef56 | 412 | static ulong mmc_bread(int dev_num, lbaint_t start, lbaint_t blkcnt, void *dst) |
272cc70b | 413 | { |
4a1a06bc AS |
414 | lbaint_t cur, blocks_todo = blkcnt; |
415 | ||
416 | if (blkcnt == 0) | |
417 | return 0; | |
272cc70b | 418 | |
4a1a06bc | 419 | struct mmc *mmc = find_mmc_device(dev_num); |
272cc70b AF |
420 | if (!mmc) |
421 | return 0; | |
422 | ||
d2bf29e3 | 423 | if ((start + blkcnt) > mmc->block_dev.lba) { |
ff8fef56 | 424 | printf("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n", |
d2bf29e3 LW |
425 | start + blkcnt, mmc->block_dev.lba); |
426 | return 0; | |
427 | } | |
272cc70b | 428 | |
4a1a06bc | 429 | if (mmc_set_blocklen(mmc, mmc->read_bl_len)) |
272cc70b | 430 | return 0; |
272cc70b | 431 | |
4a1a06bc | 432 | do { |
8feafcc4 | 433 | cur = (blocks_todo > mmc->b_max) ? mmc->b_max : blocks_todo; |
4a1a06bc AS |
434 | if(mmc_read_blocks(mmc, dst, start, cur) != cur) |
435 | return 0; | |
436 | blocks_todo -= cur; | |
437 | start += cur; | |
438 | dst += cur * mmc->read_bl_len; | |
439 | } while (blocks_todo > 0); | |
272cc70b AF |
440 | |
441 | return blkcnt; | |
442 | } | |
443 | ||
fdbb873e | 444 | static int mmc_go_idle(struct mmc *mmc) |
272cc70b AF |
445 | { |
446 | struct mmc_cmd cmd; | |
447 | int err; | |
448 | ||
449 | udelay(1000); | |
450 | ||
451 | cmd.cmdidx = MMC_CMD_GO_IDLE_STATE; | |
452 | cmd.cmdarg = 0; | |
453 | cmd.resp_type = MMC_RSP_NONE; | |
272cc70b AF |
454 | |
455 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
456 | ||
457 | if (err) | |
458 | return err; | |
459 | ||
460 | udelay(2000); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
fdbb873e | 465 | static int sd_send_op_cond(struct mmc *mmc) |
272cc70b AF |
466 | { |
467 | int timeout = 1000; | |
468 | int err; | |
469 | struct mmc_cmd cmd; | |
470 | ||
471 | do { | |
472 | cmd.cmdidx = MMC_CMD_APP_CMD; | |
473 | cmd.resp_type = MMC_RSP_R1; | |
474 | cmd.cmdarg = 0; | |
272cc70b AF |
475 | |
476 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
477 | ||
478 | if (err) | |
479 | return err; | |
480 | ||
481 | cmd.cmdidx = SD_CMD_APP_SEND_OP_COND; | |
482 | cmd.resp_type = MMC_RSP_R3; | |
250de12b SB |
483 | |
484 | /* | |
485 | * Most cards do not answer if some reserved bits | |
486 | * in the ocr are set. However, Some controller | |
487 | * can set bit 7 (reserved for low voltages), but | |
488 | * how to manage low voltages SD card is not yet | |
489 | * specified. | |
490 | */ | |
d52ebf10 TC |
491 | cmd.cmdarg = mmc_host_is_spi(mmc) ? 0 : |
492 | (mmc->voltages & 0xff8000); | |
272cc70b AF |
493 | |
494 | if (mmc->version == SD_VERSION_2) | |
495 | cmd.cmdarg |= OCR_HCS; | |
496 | ||
497 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
498 | ||
499 | if (err) | |
500 | return err; | |
501 | ||
502 | udelay(1000); | |
503 | } while ((!(cmd.response[0] & OCR_BUSY)) && timeout--); | |
504 | ||
505 | if (timeout <= 0) | |
506 | return UNUSABLE_ERR; | |
507 | ||
508 | if (mmc->version != SD_VERSION_2) | |
509 | mmc->version = SD_VERSION_1_0; | |
510 | ||
d52ebf10 TC |
511 | if (mmc_host_is_spi(mmc)) { /* read OCR for spi */ |
512 | cmd.cmdidx = MMC_CMD_SPI_READ_OCR; | |
513 | cmd.resp_type = MMC_RSP_R3; | |
514 | cmd.cmdarg = 0; | |
d52ebf10 TC |
515 | |
516 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
517 | ||
518 | if (err) | |
519 | return err; | |
520 | } | |
521 | ||
998be3dd | 522 | mmc->ocr = cmd.response[0]; |
272cc70b AF |
523 | |
524 | mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS); | |
525 | mmc->rca = 0; | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
e9550449 CLC |
530 | /* We pass in the cmd since otherwise the init seems to fail */ |
531 | static int mmc_send_op_cond_iter(struct mmc *mmc, struct mmc_cmd *cmd, | |
532 | int use_arg) | |
272cc70b | 533 | { |
272cc70b AF |
534 | int err; |
535 | ||
e9550449 CLC |
536 | cmd->cmdidx = MMC_CMD_SEND_OP_COND; |
537 | cmd->resp_type = MMC_RSP_R3; | |
538 | cmd->cmdarg = 0; | |
539 | if (use_arg && !mmc_host_is_spi(mmc)) { | |
540 | cmd->cmdarg = | |
541 | (mmc->voltages & | |
542 | (mmc->op_cond_response & OCR_VOLTAGE_MASK)) | | |
543 | (mmc->op_cond_response & OCR_ACCESS_MODE); | |
544 | ||
545 | if (mmc->host_caps & MMC_MODE_HC) | |
546 | cmd->cmdarg |= OCR_HCS; | |
547 | } | |
548 | err = mmc_send_cmd(mmc, cmd, NULL); | |
549 | if (err) | |
550 | return err; | |
551 | mmc->op_cond_response = cmd->response[0]; | |
552 | return 0; | |
553 | } | |
554 | ||
555 | int mmc_send_op_cond(struct mmc *mmc) | |
556 | { | |
557 | struct mmc_cmd cmd; | |
558 | int err, i; | |
559 | ||
272cc70b AF |
560 | /* Some cards seem to need this */ |
561 | mmc_go_idle(mmc); | |
562 | ||
31cacbab | 563 | /* Asking to the card its capabilities */ |
e9550449 CLC |
564 | mmc->op_cond_pending = 1; |
565 | for (i = 0; i < 2; i++) { | |
566 | err = mmc_send_op_cond_iter(mmc, &cmd, i != 0); | |
567 | if (err) | |
568 | return err; | |
cd6881b5 | 569 | |
e9550449 CLC |
570 | /* exit if not busy (flag seems to be inverted) */ |
571 | if (mmc->op_cond_response & OCR_BUSY) | |
572 | return 0; | |
573 | } | |
574 | return IN_PROGRESS; | |
575 | } | |
cd6881b5 | 576 | |
e9550449 CLC |
577 | int mmc_complete_op_cond(struct mmc *mmc) |
578 | { | |
579 | struct mmc_cmd cmd; | |
580 | int timeout = 1000; | |
581 | uint start; | |
582 | int err; | |
cd6881b5 | 583 | |
e9550449 CLC |
584 | mmc->op_cond_pending = 0; |
585 | start = get_timer(0); | |
272cc70b | 586 | do { |
e9550449 | 587 | err = mmc_send_op_cond_iter(mmc, &cmd, 1); |
272cc70b AF |
588 | if (err) |
589 | return err; | |
e9550449 CLC |
590 | if (get_timer(start) > timeout) |
591 | return UNUSABLE_ERR; | |
592 | udelay(100); | |
593 | } while (!(mmc->op_cond_response & OCR_BUSY)); | |
272cc70b | 594 | |
d52ebf10 TC |
595 | if (mmc_host_is_spi(mmc)) { /* read OCR for spi */ |
596 | cmd.cmdidx = MMC_CMD_SPI_READ_OCR; | |
597 | cmd.resp_type = MMC_RSP_R3; | |
598 | cmd.cmdarg = 0; | |
d52ebf10 TC |
599 | |
600 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
601 | ||
602 | if (err) | |
603 | return err; | |
604 | } | |
605 | ||
272cc70b | 606 | mmc->version = MMC_VERSION_UNKNOWN; |
998be3dd | 607 | mmc->ocr = cmd.response[0]; |
272cc70b AF |
608 | |
609 | mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS); | |
610 | mmc->rca = 0; | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | ||
fdbb873e | 616 | static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) |
272cc70b AF |
617 | { |
618 | struct mmc_cmd cmd; | |
619 | struct mmc_data data; | |
620 | int err; | |
621 | ||
622 | /* Get the Card Status Register */ | |
623 | cmd.cmdidx = MMC_CMD_SEND_EXT_CSD; | |
624 | cmd.resp_type = MMC_RSP_R1; | |
625 | cmd.cmdarg = 0; | |
272cc70b | 626 | |
cdfd1ac6 | 627 | data.dest = (char *)ext_csd; |
272cc70b | 628 | data.blocks = 1; |
8bfa195e | 629 | data.blocksize = MMC_MAX_BLOCK_LEN; |
272cc70b AF |
630 | data.flags = MMC_DATA_READ; |
631 | ||
632 | err = mmc_send_cmd(mmc, &cmd, &data); | |
633 | ||
634 | return err; | |
635 | } | |
636 | ||
637 | ||
fdbb873e | 638 | static int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) |
272cc70b AF |
639 | { |
640 | struct mmc_cmd cmd; | |
5d4fc8d9 RR |
641 | int timeout = 1000; |
642 | int ret; | |
272cc70b AF |
643 | |
644 | cmd.cmdidx = MMC_CMD_SWITCH; | |
645 | cmd.resp_type = MMC_RSP_R1b; | |
646 | cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | | |
5d4fc8d9 RR |
647 | (index << 16) | |
648 | (value << 8); | |
272cc70b | 649 | |
5d4fc8d9 RR |
650 | ret = mmc_send_cmd(mmc, &cmd, NULL); |
651 | ||
652 | /* Waiting for the ready status */ | |
93ad0d18 JK |
653 | if (!ret) |
654 | ret = mmc_send_status(mmc, timeout); | |
5d4fc8d9 RR |
655 | |
656 | return ret; | |
657 | ||
272cc70b AF |
658 | } |
659 | ||
fdbb873e | 660 | static int mmc_change_freq(struct mmc *mmc) |
272cc70b | 661 | { |
8bfa195e | 662 | ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); |
272cc70b AF |
663 | char cardtype; |
664 | int err; | |
665 | ||
666 | mmc->card_caps = 0; | |
667 | ||
d52ebf10 TC |
668 | if (mmc_host_is_spi(mmc)) |
669 | return 0; | |
670 | ||
272cc70b AF |
671 | /* Only version 4 supports high-speed */ |
672 | if (mmc->version < MMC_VERSION_4) | |
673 | return 0; | |
674 | ||
272cc70b AF |
675 | err = mmc_send_ext_csd(mmc, ext_csd); |
676 | ||
677 | if (err) | |
678 | return err; | |
679 | ||
0560db18 | 680 | cardtype = ext_csd[EXT_CSD_CARD_TYPE] & 0xf; |
272cc70b AF |
681 | |
682 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1); | |
683 | ||
684 | if (err) | |
685 | return err; | |
686 | ||
687 | /* Now check to see that it worked */ | |
688 | err = mmc_send_ext_csd(mmc, ext_csd); | |
689 | ||
690 | if (err) | |
691 | return err; | |
692 | ||
693 | /* No high-speed support */ | |
0560db18 | 694 | if (!ext_csd[EXT_CSD_HS_TIMING]) |
272cc70b AF |
695 | return 0; |
696 | ||
697 | /* High Speed is set, there are two types: 52MHz and 26MHz */ | |
698 | if (cardtype & MMC_HS_52MHZ) | |
699 | mmc->card_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS; | |
700 | else | |
701 | mmc->card_caps |= MMC_MODE_HS; | |
702 | ||
703 | return 0; | |
704 | } | |
705 | ||
f866a46d SW |
706 | static int mmc_set_capacity(struct mmc *mmc, int part_num) |
707 | { | |
708 | switch (part_num) { | |
709 | case 0: | |
710 | mmc->capacity = mmc->capacity_user; | |
711 | break; | |
712 | case 1: | |
713 | case 2: | |
714 | mmc->capacity = mmc->capacity_boot; | |
715 | break; | |
716 | case 3: | |
717 | mmc->capacity = mmc->capacity_rpmb; | |
718 | break; | |
719 | case 4: | |
720 | case 5: | |
721 | case 6: | |
722 | case 7: | |
723 | mmc->capacity = mmc->capacity_gp[part_num - 4]; | |
724 | break; | |
725 | default: | |
726 | return -1; | |
727 | } | |
728 | ||
729 | mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len); | |
730 | ||
731 | return 0; | |
732 | } | |
733 | ||
bc897b1d LW |
734 | int mmc_switch_part(int dev_num, unsigned int part_num) |
735 | { | |
736 | struct mmc *mmc = find_mmc_device(dev_num); | |
f866a46d | 737 | int ret; |
bc897b1d LW |
738 | |
739 | if (!mmc) | |
740 | return -1; | |
741 | ||
f866a46d SW |
742 | ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF, |
743 | (mmc->part_config & ~PART_ACCESS_MASK) | |
744 | | (part_num & PART_ACCESS_MASK)); | |
745 | if (ret) | |
746 | return ret; | |
747 | ||
748 | return mmc_set_capacity(mmc, part_num); | |
bc897b1d LW |
749 | } |
750 | ||
48972d90 TR |
751 | int mmc_getcd(struct mmc *mmc) |
752 | { | |
753 | int cd; | |
754 | ||
755 | cd = board_mmc_getcd(mmc); | |
756 | ||
d4e1da4e PK |
757 | if (cd < 0) { |
758 | if (mmc->getcd) | |
759 | cd = mmc->getcd(mmc); | |
760 | else | |
761 | cd = 1; | |
762 | } | |
48972d90 TR |
763 | |
764 | return cd; | |
765 | } | |
766 | ||
fdbb873e | 767 | static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp) |
272cc70b AF |
768 | { |
769 | struct mmc_cmd cmd; | |
770 | struct mmc_data data; | |
771 | ||
772 | /* Switch the frequency */ | |
773 | cmd.cmdidx = SD_CMD_SWITCH_FUNC; | |
774 | cmd.resp_type = MMC_RSP_R1; | |
775 | cmd.cmdarg = (mode << 31) | 0xffffff; | |
776 | cmd.cmdarg &= ~(0xf << (group * 4)); | |
777 | cmd.cmdarg |= value << (group * 4); | |
272cc70b AF |
778 | |
779 | data.dest = (char *)resp; | |
780 | data.blocksize = 64; | |
781 | data.blocks = 1; | |
782 | data.flags = MMC_DATA_READ; | |
783 | ||
784 | return mmc_send_cmd(mmc, &cmd, &data); | |
785 | } | |
786 | ||
787 | ||
fdbb873e | 788 | static int sd_change_freq(struct mmc *mmc) |
272cc70b AF |
789 | { |
790 | int err; | |
791 | struct mmc_cmd cmd; | |
f781dd38 A |
792 | ALLOC_CACHE_ALIGN_BUFFER(uint, scr, 2); |
793 | ALLOC_CACHE_ALIGN_BUFFER(uint, switch_status, 16); | |
272cc70b AF |
794 | struct mmc_data data; |
795 | int timeout; | |
796 | ||
797 | mmc->card_caps = 0; | |
798 | ||
d52ebf10 TC |
799 | if (mmc_host_is_spi(mmc)) |
800 | return 0; | |
801 | ||
272cc70b AF |
802 | /* Read the SCR to find out if this card supports higher speeds */ |
803 | cmd.cmdidx = MMC_CMD_APP_CMD; | |
804 | cmd.resp_type = MMC_RSP_R1; | |
805 | cmd.cmdarg = mmc->rca << 16; | |
272cc70b AF |
806 | |
807 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
808 | ||
809 | if (err) | |
810 | return err; | |
811 | ||
812 | cmd.cmdidx = SD_CMD_APP_SEND_SCR; | |
813 | cmd.resp_type = MMC_RSP_R1; | |
814 | cmd.cmdarg = 0; | |
272cc70b AF |
815 | |
816 | timeout = 3; | |
817 | ||
818 | retry_scr: | |
f781dd38 | 819 | data.dest = (char *)scr; |
272cc70b AF |
820 | data.blocksize = 8; |
821 | data.blocks = 1; | |
822 | data.flags = MMC_DATA_READ; | |
823 | ||
824 | err = mmc_send_cmd(mmc, &cmd, &data); | |
825 | ||
826 | if (err) { | |
827 | if (timeout--) | |
828 | goto retry_scr; | |
829 | ||
830 | return err; | |
831 | } | |
832 | ||
4e3d89ba YK |
833 | mmc->scr[0] = __be32_to_cpu(scr[0]); |
834 | mmc->scr[1] = __be32_to_cpu(scr[1]); | |
272cc70b AF |
835 | |
836 | switch ((mmc->scr[0] >> 24) & 0xf) { | |
837 | case 0: | |
838 | mmc->version = SD_VERSION_1_0; | |
839 | break; | |
840 | case 1: | |
841 | mmc->version = SD_VERSION_1_10; | |
842 | break; | |
843 | case 2: | |
844 | mmc->version = SD_VERSION_2; | |
1741c64d JC |
845 | if ((mmc->scr[0] >> 15) & 0x1) |
846 | mmc->version = SD_VERSION_3; | |
272cc70b AF |
847 | break; |
848 | default: | |
849 | mmc->version = SD_VERSION_1_0; | |
850 | break; | |
851 | } | |
852 | ||
b44c7083 AS |
853 | if (mmc->scr[0] & SD_DATA_4BIT) |
854 | mmc->card_caps |= MMC_MODE_4BIT; | |
855 | ||
272cc70b AF |
856 | /* Version 1.0 doesn't support switching */ |
857 | if (mmc->version == SD_VERSION_1_0) | |
858 | return 0; | |
859 | ||
860 | timeout = 4; | |
861 | while (timeout--) { | |
862 | err = sd_switch(mmc, SD_SWITCH_CHECK, 0, 1, | |
f781dd38 | 863 | (u8 *)switch_status); |
272cc70b AF |
864 | |
865 | if (err) | |
866 | return err; | |
867 | ||
868 | /* The high-speed function is busy. Try again */ | |
4e3d89ba | 869 | if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY)) |
272cc70b AF |
870 | break; |
871 | } | |
872 | ||
272cc70b | 873 | /* If high-speed isn't supported, we return */ |
4e3d89ba | 874 | if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED)) |
272cc70b AF |
875 | return 0; |
876 | ||
2c3fbf4c ML |
877 | /* |
878 | * If the host doesn't support SD_HIGHSPEED, do not switch card to | |
879 | * HIGHSPEED mode even if the card support SD_HIGHSPPED. | |
880 | * This can avoid furthur problem when the card runs in different | |
881 | * mode between the host. | |
882 | */ | |
883 | if (!((mmc->host_caps & MMC_MODE_HS_52MHz) && | |
884 | (mmc->host_caps & MMC_MODE_HS))) | |
885 | return 0; | |
886 | ||
f781dd38 | 887 | err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)switch_status); |
272cc70b AF |
888 | |
889 | if (err) | |
890 | return err; | |
891 | ||
4e3d89ba | 892 | if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000) |
272cc70b AF |
893 | mmc->card_caps |= MMC_MODE_HS; |
894 | ||
895 | return 0; | |
896 | } | |
897 | ||
898 | /* frequency bases */ | |
899 | /* divided by 10 to be nice to platforms without floating point */ | |
5f837c2c | 900 | static const int fbase[] = { |
272cc70b AF |
901 | 10000, |
902 | 100000, | |
903 | 1000000, | |
904 | 10000000, | |
905 | }; | |
906 | ||
907 | /* Multiplier values for TRAN_SPEED. Multiplied by 10 to be nice | |
908 | * to platforms without floating point. | |
909 | */ | |
5f837c2c | 910 | static const int multipliers[] = { |
272cc70b AF |
911 | 0, /* reserved */ |
912 | 10, | |
913 | 12, | |
914 | 13, | |
915 | 15, | |
916 | 20, | |
917 | 25, | |
918 | 30, | |
919 | 35, | |
920 | 40, | |
921 | 45, | |
922 | 50, | |
923 | 55, | |
924 | 60, | |
925 | 70, | |
926 | 80, | |
927 | }; | |
928 | ||
fdbb873e | 929 | static void mmc_set_ios(struct mmc *mmc) |
272cc70b AF |
930 | { |
931 | mmc->set_ios(mmc); | |
932 | } | |
933 | ||
934 | void mmc_set_clock(struct mmc *mmc, uint clock) | |
935 | { | |
936 | if (clock > mmc->f_max) | |
937 | clock = mmc->f_max; | |
938 | ||
939 | if (clock < mmc->f_min) | |
940 | clock = mmc->f_min; | |
941 | ||
942 | mmc->clock = clock; | |
943 | ||
944 | mmc_set_ios(mmc); | |
945 | } | |
946 | ||
fdbb873e | 947 | static void mmc_set_bus_width(struct mmc *mmc, uint width) |
272cc70b AF |
948 | { |
949 | mmc->bus_width = width; | |
950 | ||
951 | mmc_set_ios(mmc); | |
952 | } | |
953 | ||
fdbb873e | 954 | static int mmc_startup(struct mmc *mmc) |
272cc70b | 955 | { |
f866a46d | 956 | int err, i; |
272cc70b | 957 | uint mult, freq; |
639b7827 | 958 | u64 cmult, csize, capacity; |
272cc70b | 959 | struct mmc_cmd cmd; |
8bfa195e SG |
960 | ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); |
961 | ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN); | |
5d4fc8d9 | 962 | int timeout = 1000; |
272cc70b | 963 | |
d52ebf10 TC |
964 | #ifdef CONFIG_MMC_SPI_CRC_ON |
965 | if (mmc_host_is_spi(mmc)) { /* enable CRC check for spi */ | |
966 | cmd.cmdidx = MMC_CMD_SPI_CRC_ON_OFF; | |
967 | cmd.resp_type = MMC_RSP_R1; | |
968 | cmd.cmdarg = 1; | |
d52ebf10 TC |
969 | err = mmc_send_cmd(mmc, &cmd, NULL); |
970 | ||
971 | if (err) | |
972 | return err; | |
973 | } | |
974 | #endif | |
975 | ||
272cc70b | 976 | /* Put the Card in Identify Mode */ |
d52ebf10 TC |
977 | cmd.cmdidx = mmc_host_is_spi(mmc) ? MMC_CMD_SEND_CID : |
978 | MMC_CMD_ALL_SEND_CID; /* cmd not supported in spi */ | |
272cc70b AF |
979 | cmd.resp_type = MMC_RSP_R2; |
980 | cmd.cmdarg = 0; | |
272cc70b AF |
981 | |
982 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
983 | ||
984 | if (err) | |
985 | return err; | |
986 | ||
987 | memcpy(mmc->cid, cmd.response, 16); | |
988 | ||
989 | /* | |
990 | * For MMC cards, set the Relative Address. | |
991 | * For SD cards, get the Relatvie Address. | |
992 | * This also puts the cards into Standby State | |
993 | */ | |
d52ebf10 TC |
994 | if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */ |
995 | cmd.cmdidx = SD_CMD_SEND_RELATIVE_ADDR; | |
996 | cmd.cmdarg = mmc->rca << 16; | |
997 | cmd.resp_type = MMC_RSP_R6; | |
272cc70b | 998 | |
d52ebf10 | 999 | err = mmc_send_cmd(mmc, &cmd, NULL); |
272cc70b | 1000 | |
d52ebf10 TC |
1001 | if (err) |
1002 | return err; | |
272cc70b | 1003 | |
d52ebf10 TC |
1004 | if (IS_SD(mmc)) |
1005 | mmc->rca = (cmd.response[0] >> 16) & 0xffff; | |
1006 | } | |
272cc70b AF |
1007 | |
1008 | /* Get the Card-Specific Data */ | |
1009 | cmd.cmdidx = MMC_CMD_SEND_CSD; | |
1010 | cmd.resp_type = MMC_RSP_R2; | |
1011 | cmd.cmdarg = mmc->rca << 16; | |
272cc70b AF |
1012 | |
1013 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1014 | ||
5d4fc8d9 RR |
1015 | /* Waiting for the ready status */ |
1016 | mmc_send_status(mmc, timeout); | |
1017 | ||
272cc70b AF |
1018 | if (err) |
1019 | return err; | |
1020 | ||
998be3dd RV |
1021 | mmc->csd[0] = cmd.response[0]; |
1022 | mmc->csd[1] = cmd.response[1]; | |
1023 | mmc->csd[2] = cmd.response[2]; | |
1024 | mmc->csd[3] = cmd.response[3]; | |
272cc70b AF |
1025 | |
1026 | if (mmc->version == MMC_VERSION_UNKNOWN) { | |
0b453ffe | 1027 | int version = (cmd.response[0] >> 26) & 0xf; |
272cc70b AF |
1028 | |
1029 | switch (version) { | |
1030 | case 0: | |
1031 | mmc->version = MMC_VERSION_1_2; | |
1032 | break; | |
1033 | case 1: | |
1034 | mmc->version = MMC_VERSION_1_4; | |
1035 | break; | |
1036 | case 2: | |
1037 | mmc->version = MMC_VERSION_2_2; | |
1038 | break; | |
1039 | case 3: | |
1040 | mmc->version = MMC_VERSION_3; | |
1041 | break; | |
1042 | case 4: | |
1043 | mmc->version = MMC_VERSION_4; | |
1044 | break; | |
1045 | default: | |
1046 | mmc->version = MMC_VERSION_1_2; | |
1047 | break; | |
1048 | } | |
1049 | } | |
1050 | ||
1051 | /* divide frequency by 10, since the mults are 10x bigger */ | |
0b453ffe RV |
1052 | freq = fbase[(cmd.response[0] & 0x7)]; |
1053 | mult = multipliers[((cmd.response[0] >> 3) & 0xf)]; | |
272cc70b AF |
1054 | |
1055 | mmc->tran_speed = freq * mult; | |
1056 | ||
998be3dd | 1057 | mmc->read_bl_len = 1 << ((cmd.response[1] >> 16) & 0xf); |
272cc70b AF |
1058 | |
1059 | if (IS_SD(mmc)) | |
1060 | mmc->write_bl_len = mmc->read_bl_len; | |
1061 | else | |
998be3dd | 1062 | mmc->write_bl_len = 1 << ((cmd.response[3] >> 22) & 0xf); |
272cc70b AF |
1063 | |
1064 | if (mmc->high_capacity) { | |
1065 | csize = (mmc->csd[1] & 0x3f) << 16 | |
1066 | | (mmc->csd[2] & 0xffff0000) >> 16; | |
1067 | cmult = 8; | |
1068 | } else { | |
1069 | csize = (mmc->csd[1] & 0x3ff) << 2 | |
1070 | | (mmc->csd[2] & 0xc0000000) >> 30; | |
1071 | cmult = (mmc->csd[2] & 0x00038000) >> 15; | |
1072 | } | |
1073 | ||
f866a46d SW |
1074 | mmc->capacity_user = (csize + 1) << (cmult + 2); |
1075 | mmc->capacity_user *= mmc->read_bl_len; | |
1076 | mmc->capacity_boot = 0; | |
1077 | mmc->capacity_rpmb = 0; | |
1078 | for (i = 0; i < 4; i++) | |
1079 | mmc->capacity_gp[i] = 0; | |
272cc70b | 1080 | |
8bfa195e SG |
1081 | if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN) |
1082 | mmc->read_bl_len = MMC_MAX_BLOCK_LEN; | |
272cc70b | 1083 | |
8bfa195e SG |
1084 | if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN) |
1085 | mmc->write_bl_len = MMC_MAX_BLOCK_LEN; | |
272cc70b AF |
1086 | |
1087 | /* Select the card, and put it into Transfer Mode */ | |
d52ebf10 TC |
1088 | if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */ |
1089 | cmd.cmdidx = MMC_CMD_SELECT_CARD; | |
fe8f7066 | 1090 | cmd.resp_type = MMC_RSP_R1; |
d52ebf10 | 1091 | cmd.cmdarg = mmc->rca << 16; |
d52ebf10 | 1092 | err = mmc_send_cmd(mmc, &cmd, NULL); |
272cc70b | 1093 | |
d52ebf10 TC |
1094 | if (err) |
1095 | return err; | |
1096 | } | |
272cc70b | 1097 | |
e6f99a56 LW |
1098 | /* |
1099 | * For SD, its erase group is always one sector | |
1100 | */ | |
1101 | mmc->erase_grp_size = 1; | |
bc897b1d | 1102 | mmc->part_config = MMCPART_NOAVAILABLE; |
d23e2c09 SG |
1103 | if (!IS_SD(mmc) && (mmc->version >= MMC_VERSION_4)) { |
1104 | /* check ext_csd version and capacity */ | |
1105 | err = mmc_send_ext_csd(mmc, ext_csd); | |
fdbb873e | 1106 | if (!err && (ext_csd[EXT_CSD_REV] >= 2)) { |
639b7827 YS |
1107 | /* |
1108 | * According to the JEDEC Standard, the value of | |
1109 | * ext_csd's capacity is valid if the value is more | |
1110 | * than 2GB | |
1111 | */ | |
0560db18 LW |
1112 | capacity = ext_csd[EXT_CSD_SEC_CNT] << 0 |
1113 | | ext_csd[EXT_CSD_SEC_CNT + 1] << 8 | |
1114 | | ext_csd[EXT_CSD_SEC_CNT + 2] << 16 | |
1115 | | ext_csd[EXT_CSD_SEC_CNT + 3] << 24; | |
8bfa195e | 1116 | capacity *= MMC_MAX_BLOCK_LEN; |
b1f1e821 | 1117 | if ((capacity >> 20) > 2 * 1024) |
f866a46d | 1118 | mmc->capacity_user = capacity; |
d23e2c09 | 1119 | } |
bc897b1d | 1120 | |
64f4a619 JC |
1121 | switch (ext_csd[EXT_CSD_REV]) { |
1122 | case 1: | |
1123 | mmc->version = MMC_VERSION_4_1; | |
1124 | break; | |
1125 | case 2: | |
1126 | mmc->version = MMC_VERSION_4_2; | |
1127 | break; | |
1128 | case 3: | |
1129 | mmc->version = MMC_VERSION_4_3; | |
1130 | break; | |
1131 | case 5: | |
1132 | mmc->version = MMC_VERSION_4_41; | |
1133 | break; | |
1134 | case 6: | |
1135 | mmc->version = MMC_VERSION_4_5; | |
1136 | break; | |
1137 | } | |
1138 | ||
e6f99a56 LW |
1139 | /* |
1140 | * Check whether GROUP_DEF is set, if yes, read out | |
1141 | * group size from ext_csd directly, or calculate | |
1142 | * the group size from the csd value. | |
1143 | */ | |
8bfa195e | 1144 | if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) { |
0560db18 | 1145 | mmc->erase_grp_size = |
8bfa195e SG |
1146 | ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * |
1147 | MMC_MAX_BLOCK_LEN * 1024; | |
1148 | } else { | |
e6f99a56 LW |
1149 | int erase_gsz, erase_gmul; |
1150 | erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10; | |
1151 | erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5; | |
1152 | mmc->erase_grp_size = (erase_gsz + 1) | |
1153 | * (erase_gmul + 1); | |
1154 | } | |
1155 | ||
bc897b1d | 1156 | /* store the partition info of emmc */ |
8948ea83 SW |
1157 | if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) || |
1158 | ext_csd[EXT_CSD_BOOT_MULT]) | |
0560db18 | 1159 | mmc->part_config = ext_csd[EXT_CSD_PART_CONF]; |
f866a46d SW |
1160 | |
1161 | mmc->capacity_boot = ext_csd[EXT_CSD_BOOT_MULT] << 17; | |
1162 | ||
1163 | mmc->capacity_rpmb = ext_csd[EXT_CSD_RPMB_MULT] << 17; | |
1164 | ||
1165 | for (i = 0; i < 4; i++) { | |
1166 | int idx = EXT_CSD_GP_SIZE_MULT + i * 3; | |
1167 | mmc->capacity_gp[i] = (ext_csd[idx + 2] << 16) + | |
1168 | (ext_csd[idx + 1] << 8) + ext_csd[idx]; | |
1169 | mmc->capacity_gp[i] *= | |
1170 | ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; | |
1171 | mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; | |
1172 | } | |
d23e2c09 SG |
1173 | } |
1174 | ||
f866a46d SW |
1175 | err = mmc_set_capacity(mmc, mmc->part_num); |
1176 | if (err) | |
1177 | return err; | |
1178 | ||
272cc70b AF |
1179 | if (IS_SD(mmc)) |
1180 | err = sd_change_freq(mmc); | |
1181 | else | |
1182 | err = mmc_change_freq(mmc); | |
1183 | ||
1184 | if (err) | |
1185 | return err; | |
1186 | ||
1187 | /* Restrict card's capabilities by what the host can do */ | |
1188 | mmc->card_caps &= mmc->host_caps; | |
1189 | ||
1190 | if (IS_SD(mmc)) { | |
1191 | if (mmc->card_caps & MMC_MODE_4BIT) { | |
1192 | cmd.cmdidx = MMC_CMD_APP_CMD; | |
1193 | cmd.resp_type = MMC_RSP_R1; | |
1194 | cmd.cmdarg = mmc->rca << 16; | |
272cc70b AF |
1195 | |
1196 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1197 | if (err) | |
1198 | return err; | |
1199 | ||
1200 | cmd.cmdidx = SD_CMD_APP_SET_BUS_WIDTH; | |
1201 | cmd.resp_type = MMC_RSP_R1; | |
1202 | cmd.cmdarg = 2; | |
272cc70b AF |
1203 | err = mmc_send_cmd(mmc, &cmd, NULL); |
1204 | if (err) | |
1205 | return err; | |
1206 | ||
1207 | mmc_set_bus_width(mmc, 4); | |
1208 | } | |
1209 | ||
1210 | if (mmc->card_caps & MMC_MODE_HS) | |
ad5fd922 | 1211 | mmc->tran_speed = 50000000; |
272cc70b | 1212 | else |
ad5fd922 | 1213 | mmc->tran_speed = 25000000; |
272cc70b | 1214 | } else { |
7798f6db AF |
1215 | int idx; |
1216 | ||
1217 | /* An array of possible bus widths in order of preference */ | |
1218 | static unsigned ext_csd_bits[] = { | |
1219 | EXT_CSD_BUS_WIDTH_8, | |
1220 | EXT_CSD_BUS_WIDTH_4, | |
1221 | EXT_CSD_BUS_WIDTH_1, | |
1222 | }; | |
1223 | ||
1224 | /* An array to map CSD bus widths to host cap bits */ | |
1225 | static unsigned ext_to_hostcaps[] = { | |
1226 | [EXT_CSD_BUS_WIDTH_4] = MMC_MODE_4BIT, | |
1227 | [EXT_CSD_BUS_WIDTH_8] = MMC_MODE_8BIT, | |
1228 | }; | |
1229 | ||
1230 | /* An array to map chosen bus width to an integer */ | |
1231 | static unsigned widths[] = { | |
1232 | 8, 4, 1, | |
1233 | }; | |
1234 | ||
1235 | for (idx=0; idx < ARRAY_SIZE(ext_csd_bits); idx++) { | |
1236 | unsigned int extw = ext_csd_bits[idx]; | |
1237 | ||
1238 | /* | |
1239 | * Check to make sure the controller supports | |
1240 | * this bus width, if it's more than 1 | |
1241 | */ | |
1242 | if (extw != EXT_CSD_BUS_WIDTH_1 && | |
1243 | !(mmc->host_caps & ext_to_hostcaps[extw])) | |
1244 | continue; | |
1245 | ||
272cc70b | 1246 | err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, |
7798f6db | 1247 | EXT_CSD_BUS_WIDTH, extw); |
272cc70b AF |
1248 | |
1249 | if (err) | |
4137894e | 1250 | continue; |
272cc70b | 1251 | |
7798f6db | 1252 | mmc_set_bus_width(mmc, widths[idx]); |
4137894e LW |
1253 | |
1254 | err = mmc_send_ext_csd(mmc, test_csd); | |
1255 | if (!err && ext_csd[EXT_CSD_PARTITIONING_SUPPORT] \ | |
1256 | == test_csd[EXT_CSD_PARTITIONING_SUPPORT] | |
1257 | && ext_csd[EXT_CSD_ERASE_GROUP_DEF] \ | |
1258 | == test_csd[EXT_CSD_ERASE_GROUP_DEF] \ | |
1259 | && ext_csd[EXT_CSD_REV] \ | |
1260 | == test_csd[EXT_CSD_REV] | |
1261 | && ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] \ | |
1262 | == test_csd[EXT_CSD_HC_ERASE_GRP_SIZE] | |
1263 | && memcmp(&ext_csd[EXT_CSD_SEC_CNT], \ | |
1264 | &test_csd[EXT_CSD_SEC_CNT], 4) == 0) { | |
1265 | ||
7798f6db | 1266 | mmc->card_caps |= ext_to_hostcaps[extw]; |
4137894e LW |
1267 | break; |
1268 | } | |
272cc70b AF |
1269 | } |
1270 | ||
1271 | if (mmc->card_caps & MMC_MODE_HS) { | |
1272 | if (mmc->card_caps & MMC_MODE_HS_52MHz) | |
ad5fd922 | 1273 | mmc->tran_speed = 52000000; |
272cc70b | 1274 | else |
ad5fd922 JC |
1275 | mmc->tran_speed = 26000000; |
1276 | } | |
272cc70b AF |
1277 | } |
1278 | ||
ad5fd922 JC |
1279 | mmc_set_clock(mmc, mmc->tran_speed); |
1280 | ||
272cc70b AF |
1281 | /* fill in device description */ |
1282 | mmc->block_dev.lun = 0; | |
1283 | mmc->block_dev.type = 0; | |
1284 | mmc->block_dev.blksz = mmc->read_bl_len; | |
0472fbfd | 1285 | mmc->block_dev.log2blksz = LOG2(mmc->block_dev.blksz); |
9b1f942c | 1286 | mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len); |
babce5f6 TH |
1287 | sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x", |
1288 | mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff), | |
1289 | (mmc->cid[3] >> 16) & 0xffff); | |
1290 | sprintf(mmc->block_dev.product, "%c%c%c%c%c%c", mmc->cid[0] & 0xff, | |
1291 | (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff, | |
1292 | (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff, | |
1293 | (mmc->cid[2] >> 24) & 0xff); | |
1294 | sprintf(mmc->block_dev.revision, "%d.%d", (mmc->cid[2] >> 20) & 0xf, | |
1295 | (mmc->cid[2] >> 16) & 0xf); | |
122efd43 | 1296 | #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBDISK_SUPPORT) |
272cc70b | 1297 | init_part(&mmc->block_dev); |
122efd43 | 1298 | #endif |
272cc70b AF |
1299 | |
1300 | return 0; | |
1301 | } | |
1302 | ||
fdbb873e | 1303 | static int mmc_send_if_cond(struct mmc *mmc) |
272cc70b AF |
1304 | { |
1305 | struct mmc_cmd cmd; | |
1306 | int err; | |
1307 | ||
1308 | cmd.cmdidx = SD_CMD_SEND_IF_COND; | |
1309 | /* We set the bit if the host supports voltages between 2.7 and 3.6 V */ | |
1310 | cmd.cmdarg = ((mmc->voltages & 0xff8000) != 0) << 8 | 0xaa; | |
1311 | cmd.resp_type = MMC_RSP_R7; | |
272cc70b AF |
1312 | |
1313 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1314 | ||
1315 | if (err) | |
1316 | return err; | |
1317 | ||
998be3dd | 1318 | if ((cmd.response[0] & 0xff) != 0xaa) |
272cc70b AF |
1319 | return UNUSABLE_ERR; |
1320 | else | |
1321 | mmc->version = SD_VERSION_2; | |
1322 | ||
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | int mmc_register(struct mmc *mmc) | |
1327 | { | |
1328 | /* Setup the universal parts of the block interface just once */ | |
1329 | mmc->block_dev.if_type = IF_TYPE_MMC; | |
1330 | mmc->block_dev.dev = cur_dev_num++; | |
1331 | mmc->block_dev.removable = 1; | |
1332 | mmc->block_dev.block_read = mmc_bread; | |
1333 | mmc->block_dev.block_write = mmc_bwrite; | |
e6f99a56 | 1334 | mmc->block_dev.block_erase = mmc_berase; |
8feafcc4 JR |
1335 | if (!mmc->b_max) |
1336 | mmc->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; | |
272cc70b AF |
1337 | |
1338 | INIT_LIST_HEAD (&mmc->link); | |
1339 | ||
1340 | list_add_tail (&mmc->link, &mmc_devices); | |
1341 | ||
1342 | return 0; | |
1343 | } | |
1344 | ||
df3fc526 | 1345 | #ifdef CONFIG_PARTITIONS |
272cc70b AF |
1346 | block_dev_desc_t *mmc_get_dev(int dev) |
1347 | { | |
1348 | struct mmc *mmc = find_mmc_device(dev); | |
6bb4b4bc | 1349 | if (!mmc || mmc_init(mmc)) |
40242bc3 | 1350 | return NULL; |
272cc70b | 1351 | |
40242bc3 | 1352 | return &mmc->block_dev; |
272cc70b | 1353 | } |
df3fc526 | 1354 | #endif |
272cc70b | 1355 | |
e9550449 | 1356 | int mmc_start_init(struct mmc *mmc) |
272cc70b | 1357 | { |
afd5932b | 1358 | int err; |
272cc70b | 1359 | |
48972d90 TR |
1360 | if (mmc_getcd(mmc) == 0) { |
1361 | mmc->has_init = 0; | |
1362 | printf("MMC: no card present\n"); | |
1363 | return NO_CARD_ERR; | |
1364 | } | |
1365 | ||
bc897b1d LW |
1366 | if (mmc->has_init) |
1367 | return 0; | |
1368 | ||
272cc70b AF |
1369 | err = mmc->init(mmc); |
1370 | ||
1371 | if (err) | |
1372 | return err; | |
1373 | ||
b86b85e2 IY |
1374 | mmc_set_bus_width(mmc, 1); |
1375 | mmc_set_clock(mmc, 1); | |
1376 | ||
272cc70b AF |
1377 | /* Reset the Card */ |
1378 | err = mmc_go_idle(mmc); | |
1379 | ||
1380 | if (err) | |
1381 | return err; | |
1382 | ||
bc897b1d LW |
1383 | /* The internal partition reset to user partition(0) at every CMD0*/ |
1384 | mmc->part_num = 0; | |
1385 | ||
272cc70b | 1386 | /* Test for SD version 2 */ |
afd5932b | 1387 | err = mmc_send_if_cond(mmc); |
272cc70b | 1388 | |
272cc70b AF |
1389 | /* Now try to get the SD card's operating condition */ |
1390 | err = sd_send_op_cond(mmc); | |
1391 | ||
1392 | /* If the command timed out, we check for an MMC card */ | |
1393 | if (err == TIMEOUT) { | |
1394 | err = mmc_send_op_cond(mmc); | |
1395 | ||
e9550449 | 1396 | if (err && err != IN_PROGRESS) { |
272cc70b AF |
1397 | printf("Card did not respond to voltage select!\n"); |
1398 | return UNUSABLE_ERR; | |
1399 | } | |
1400 | } | |
1401 | ||
e9550449 CLC |
1402 | if (err == IN_PROGRESS) |
1403 | mmc->init_in_progress = 1; | |
1404 | ||
1405 | return err; | |
1406 | } | |
1407 | ||
1408 | static int mmc_complete_init(struct mmc *mmc) | |
1409 | { | |
1410 | int err = 0; | |
1411 | ||
1412 | if (mmc->op_cond_pending) | |
1413 | err = mmc_complete_op_cond(mmc); | |
1414 | ||
1415 | if (!err) | |
1416 | err = mmc_startup(mmc); | |
bc897b1d LW |
1417 | if (err) |
1418 | mmc->has_init = 0; | |
1419 | else | |
1420 | mmc->has_init = 1; | |
e9550449 CLC |
1421 | mmc->init_in_progress = 0; |
1422 | return err; | |
1423 | } | |
1424 | ||
1425 | int mmc_init(struct mmc *mmc) | |
1426 | { | |
1427 | int err = IN_PROGRESS; | |
1428 | unsigned start = get_timer(0); | |
1429 | ||
1430 | if (mmc->has_init) | |
1431 | return 0; | |
1432 | if (!mmc->init_in_progress) | |
1433 | err = mmc_start_init(mmc); | |
1434 | ||
1435 | if (!err || err == IN_PROGRESS) | |
1436 | err = mmc_complete_init(mmc); | |
1437 | debug("%s: %d, time %lu\n", __func__, err, get_timer(start)); | |
bc897b1d | 1438 | return err; |
272cc70b AF |
1439 | } |
1440 | ||
1441 | /* | |
1442 | * CPU and board-specific MMC initializations. Aliased function | |
1443 | * signals caller to move on | |
1444 | */ | |
1445 | static int __def_mmc_init(bd_t *bis) | |
1446 | { | |
1447 | return -1; | |
1448 | } | |
1449 | ||
f9a109b3 PT |
1450 | int cpu_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init"))); |
1451 | int board_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init"))); | |
272cc70b AF |
1452 | |
1453 | void print_mmc_devices(char separator) | |
1454 | { | |
1455 | struct mmc *m; | |
1456 | struct list_head *entry; | |
1457 | ||
1458 | list_for_each(entry, &mmc_devices) { | |
1459 | m = list_entry(entry, struct mmc, link); | |
1460 | ||
1461 | printf("%s: %d", m->name, m->block_dev.dev); | |
1462 | ||
1463 | if (entry->next != &mmc_devices) | |
1464 | printf("%c ", separator); | |
1465 | } | |
1466 | ||
1467 | printf("\n"); | |
1468 | } | |
1469 | ||
ea6ebe21 LW |
1470 | int get_mmc_num(void) |
1471 | { | |
1472 | return cur_dev_num; | |
1473 | } | |
1474 | ||
e9550449 CLC |
1475 | void mmc_set_preinit(struct mmc *mmc, int preinit) |
1476 | { | |
1477 | mmc->preinit = preinit; | |
1478 | } | |
1479 | ||
1480 | static void do_preinit(void) | |
1481 | { | |
1482 | struct mmc *m; | |
1483 | struct list_head *entry; | |
1484 | ||
1485 | list_for_each(entry, &mmc_devices) { | |
1486 | m = list_entry(entry, struct mmc, link); | |
1487 | ||
1488 | if (m->preinit) | |
1489 | mmc_start_init(m); | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | ||
272cc70b AF |
1494 | int mmc_initialize(bd_t *bis) |
1495 | { | |
1496 | INIT_LIST_HEAD (&mmc_devices); | |
1497 | cur_dev_num = 0; | |
1498 | ||
1499 | if (board_mmc_init(bis) < 0) | |
1500 | cpu_mmc_init(bis); | |
1501 | ||
1502 | print_mmc_devices(','); | |
1503 | ||
e9550449 | 1504 | do_preinit(); |
272cc70b AF |
1505 | return 0; |
1506 | } | |
3690d6d6 A |
1507 | |
1508 | #ifdef CONFIG_SUPPORT_EMMC_BOOT | |
1509 | /* | |
1510 | * This function changes the size of boot partition and the size of rpmb | |
1511 | * partition present on EMMC devices. | |
1512 | * | |
1513 | * Input Parameters: | |
1514 | * struct *mmc: pointer for the mmc device strcuture | |
1515 | * bootsize: size of boot partition | |
1516 | * rpmbsize: size of rpmb partition | |
1517 | * | |
1518 | * Returns 0 on success. | |
1519 | */ | |
1520 | ||
1521 | int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, | |
1522 | unsigned long rpmbsize) | |
1523 | { | |
1524 | int err; | |
1525 | struct mmc_cmd cmd; | |
1526 | ||
1527 | /* Only use this command for raw EMMC moviNAND. Enter backdoor mode */ | |
1528 | cmd.cmdidx = MMC_CMD_RES_MAN; | |
1529 | cmd.resp_type = MMC_RSP_R1b; | |
1530 | cmd.cmdarg = MMC_CMD62_ARG1; | |
1531 | ||
1532 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1533 | if (err) { | |
1534 | debug("mmc_boot_partition_size_change: Error1 = %d\n", err); | |
1535 | return err; | |
1536 | } | |
1537 | ||
1538 | /* Boot partition changing mode */ | |
1539 | cmd.cmdidx = MMC_CMD_RES_MAN; | |
1540 | cmd.resp_type = MMC_RSP_R1b; | |
1541 | cmd.cmdarg = MMC_CMD62_ARG2; | |
1542 | ||
1543 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1544 | if (err) { | |
1545 | debug("mmc_boot_partition_size_change: Error2 = %d\n", err); | |
1546 | return err; | |
1547 | } | |
1548 | /* boot partition size is multiple of 128KB */ | |
1549 | bootsize = (bootsize * 1024) / 128; | |
1550 | ||
1551 | /* Arg: boot partition size */ | |
1552 | cmd.cmdidx = MMC_CMD_RES_MAN; | |
1553 | cmd.resp_type = MMC_RSP_R1b; | |
1554 | cmd.cmdarg = bootsize; | |
1555 | ||
1556 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1557 | if (err) { | |
1558 | debug("mmc_boot_partition_size_change: Error3 = %d\n", err); | |
1559 | return err; | |
1560 | } | |
1561 | /* RPMB partition size is multiple of 128KB */ | |
1562 | rpmbsize = (rpmbsize * 1024) / 128; | |
1563 | /* Arg: RPMB partition size */ | |
1564 | cmd.cmdidx = MMC_CMD_RES_MAN; | |
1565 | cmd.resp_type = MMC_RSP_R1b; | |
1566 | cmd.cmdarg = rpmbsize; | |
1567 | ||
1568 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1569 | if (err) { | |
1570 | debug("mmc_boot_partition_size_change: Error4 = %d\n", err); | |
1571 | return err; | |
1572 | } | |
1573 | return 0; | |
1574 | } | |
1575 | ||
1576 | /* | |
1577 | * This function shall form and send the commands to open / close the | |
1578 | * boot partition specified by user. | |
1579 | * | |
1580 | * Input Parameters: | |
1581 | * ack: 0x0 - No boot acknowledge sent (default) | |
1582 | * 0x1 - Boot acknowledge sent during boot operation | |
1583 | * part_num: User selects boot data that will be sent to master | |
1584 | * 0x0 - Device not boot enabled (default) | |
1585 | * 0x1 - Boot partition 1 enabled for boot | |
1586 | * 0x2 - Boot partition 2 enabled for boot | |
1587 | * access: User selects partitions to access | |
1588 | * 0x0 : No access to boot partition (default) | |
1589 | * 0x1 : R/W boot partition 1 | |
1590 | * 0x2 : R/W boot partition 2 | |
1591 | * 0x3 : R/W Replay Protected Memory Block (RPMB) | |
1592 | * | |
1593 | * Returns 0 on success. | |
1594 | */ | |
1595 | int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access) | |
1596 | { | |
1597 | int err; | |
1598 | struct mmc_cmd cmd; | |
1599 | ||
1600 | /* Boot ack enable, boot partition enable , boot partition access */ | |
1601 | cmd.cmdidx = MMC_CMD_SWITCH; | |
1602 | cmd.resp_type = MMC_RSP_R1b; | |
1603 | ||
1604 | cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | | |
1605 | (EXT_CSD_PART_CONF << 16) | | |
1606 | ((EXT_CSD_BOOT_ACK(ack) | | |
1607 | EXT_CSD_BOOT_PART_NUM(part_num) | | |
1608 | EXT_CSD_PARTITION_ACCESS(access)) << 8); | |
1609 | ||
1610 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1611 | if (err) { | |
1612 | if (access) { | |
1613 | debug("mmc boot partition#%d open fail:Error1 = %d\n", | |
1614 | part_num, err); | |
1615 | } else { | |
1616 | debug("mmc boot partition#%d close fail:Error = %d\n", | |
1617 | part_num, err); | |
1618 | } | |
1619 | return err; | |
1620 | } | |
1621 | ||
1622 | if (access) { | |
1623 | /* 4bit transfer mode at booting time. */ | |
1624 | cmd.cmdidx = MMC_CMD_SWITCH; | |
1625 | cmd.resp_type = MMC_RSP_R1b; | |
1626 | ||
1627 | cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | | |
1628 | (EXT_CSD_BOOT_BUS_WIDTH << 16) | | |
1629 | ((1 << 0) << 8); | |
1630 | ||
1631 | err = mmc_send_cmd(mmc, &cmd, NULL); | |
1632 | if (err) { | |
1633 | debug("mmc boot partition#%d open fail:Error2 = %d\n", | |
1634 | part_num, err); | |
1635 | return err; | |
1636 | } | |
1637 | } | |
1638 | return 0; | |
1639 | } | |
1640 | #endif |