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x86/xen: resume timer irqs early
[linux/fpc-iii.git] / drivers / staging / rts5139 / sd.c
blob4283b0917f2460bd7ba0bb59e2951a347c288533
1 /* Driver for Realtek RTS51xx USB card reader
2 *
3 * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2, or (at your option) any
8 * later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, see <http://www.gnu.org/licenses/>.
17 *
18 * Author:
19 * wwang (wei_wang@realsil.com.cn)
20 * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
21 * Maintainer:
22 * Edwin Rong (edwin_rong@realsil.com.cn)
23 * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
24 */
25
26 #include <linux/blkdev.h>
27 #include <linux/kthread.h>
28 #include <linux/sched.h>
29
30 #include "debug.h"
31 #include "trace.h"
32 #include "rts51x.h"
33 #include "rts51x_transport.h"
34 #include "rts51x_scsi.h"
35 #include "rts51x_card.h"
36 #include "sd.h"
37
38 static inline void sd_set_reset_fail(struct rts51x_chip *chip, u8 err_code)
39 {
40 struct sd_info *sd_card = &(chip->sd_card);
41
42 sd_card->sd_reset_fail |= err_code;
43 }
44
45 static inline void sd_clear_reset_fail(struct rts51x_chip *chip)
46 {
47 struct sd_info *sd_card = &(chip->sd_card);
48
49 sd_card->sd_reset_fail = 0;
50 }
51
52 static inline int sd_check_reset_fail(struct rts51x_chip *chip, u8 err_code)
53 {
54 struct sd_info *sd_card = &(chip->sd_card);
55
56 return sd_card->sd_reset_fail & err_code;
57 }
58
59 static inline void sd_set_err_code(struct rts51x_chip *chip, u8 err_code)
60 {
61 struct sd_info *sd_card = &(chip->sd_card);
62
63 sd_card->err_code |= err_code;
64 }
65
66 static inline void sd_clr_err_code(struct rts51x_chip *chip)
67 {
68 struct sd_info *sd_card = &(chip->sd_card);
69
70 sd_card->err_code = 0;
71 }
72
73 static inline int sd_check_err_code(struct rts51x_chip *chip, u8 err_code)
74 {
75 struct sd_info *sd_card = &(chip->sd_card);
76
77 return sd_card->err_code & err_code;
78 }
79
80 static int sd_parse_err_code(struct rts51x_chip *chip)
81 {
82 TRACE_RET(chip, STATUS_FAIL);
83 }
84
85 int sd_check_data0_status(struct rts51x_chip *chip)
86 {
87 int retval;
88 u8 stat;
89
90 retval = rts51x_ep0_read_register(chip, SD_BUS_STAT, &stat);
91 if (retval != STATUS_SUCCESS)
92 TRACE_RET(chip, retval);
93 if (!(stat & SD_DAT0_STATUS)) {
94 sd_set_err_code(chip, SD_BUSY);
95 TRACE_RET(chip, STATUS_FAIL);
96 }
97
98 return STATUS_SUCCESS;
99 }
100
101 static int sd_send_cmd_get_rsp(struct rts51x_chip *chip, u8 cmd_idx,
102 u32 arg, u8 rsp_type, u8 *rsp, int rsp_len)
103 {
104 struct sd_info *sd_card = &(chip->sd_card);
105 int retval;
106 int timeout = 50;
107 u16 reg_addr;
108 u8 buf[17], stat;
109 int len = 2;
110 int rty_cnt = 0;
111
112 sd_clr_err_code(chip);
113
114 RTS51X_DEBUGP("SD/MMC CMD %d, arg = 0x%08x\n", cmd_idx, arg);
115
116 if (rsp_type == SD_RSP_TYPE_R1b)
117 timeout = 3000;
118
119 RTY_SEND_CMD:
120
121 rts51x_init_cmd(chip);
122
123 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0, 0xFF, 0x40 | cmd_idx);
124 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD1, 0xFF, (u8) (arg >> 24));
125 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD2, 0xFF, (u8) (arg >> 16));
126 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD3, 0xFF, (u8) (arg >> 8));
127 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD4, 0xFF, (u8) arg);
128
129 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF, rsp_type);
130 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01,
131 PINGPONG_BUFFER);
132 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
133 SD_TM_CMD_RSP | SD_TRANSFER_START);
134 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER,
135 SD_TRANSFER_END | SD_STAT_IDLE,
136 SD_TRANSFER_END | SD_STAT_IDLE);
137
138 rts51x_add_cmd(chip, READ_REG_CMD, SD_STAT1, 0, 0);
139
140 if (CHECK_USB(chip, USB_20)) {
141 if (rsp_type == SD_RSP_TYPE_R2) {
142 /* Read data from ping-pong buffer */
143 for (reg_addr = PPBUF_BASE2;
144 reg_addr < PPBUF_BASE2 + 16; reg_addr++) {
145 rts51x_add_cmd(chip, READ_REG_CMD, reg_addr, 0,
146 0);
147 }
148 len = 18;
149 } else if (rsp_type != SD_RSP_TYPE_R0) {
150 /* Read data from SD_CMDx registers */
151 for (reg_addr = SD_CMD0; reg_addr <= SD_CMD4;
152 reg_addr++) {
153 rts51x_add_cmd(chip, READ_REG_CMD, reg_addr, 0,
154 0);
155 }
156 len = 7;
157 } else {
158 len = 2;
159 }
160 } else {
161 len = 2;
162 }
163
164 retval = rts51x_send_cmd(chip, MODE_CR, 100);
165 if (retval != STATUS_SUCCESS)
166 TRACE_RET(chip, retval);
167
168 retval = rts51x_get_rsp(chip, len, timeout);
169
170 if (CHECK_SD_TRANS_FAIL(chip, retval)) {
171 u8 val;
172
173 rts51x_ep0_read_register(chip, SD_STAT1, &val);
174 RTS51X_DEBUGP("SD_STAT1: 0x%x\n", val);
175
176 rts51x_ep0_read_register(chip, SD_STAT2, &val);
177 RTS51X_DEBUGP("SD_STAT2: 0x%x\n", val);
178
179 if (val & SD_RSP_80CLK_TIMEOUT)
180 sd_set_err_code(chip, SD_RSP_TIMEOUT);
181
182 rts51x_ep0_read_register(chip, SD_BUS_STAT, &val);
183 RTS51X_DEBUGP("SD_BUS_STAT: 0x%x\n", val);
184
185 if (retval == STATUS_TIMEDOUT) {
186 if (rsp_type & SD_WAIT_BUSY_END) {
187 retval = sd_check_data0_status(chip);
188 if (retval != STATUS_SUCCESS)
189 TRACE_RET(chip, retval);
190 } else {
191 sd_set_err_code(chip, SD_TO_ERR);
192 }
193 }
194 rts51x_clear_sd_error(chip);
195
196 TRACE_RET(chip, STATUS_FAIL);
197 }
198
199 if (rsp_type == SD_RSP_TYPE_R0)
200 return STATUS_SUCCESS;
201
202 if (CHECK_USB(chip, USB_20)) {
203 rts51x_read_rsp_buf(chip, 2, buf, len - 2);
204 } else {
205 if (rsp_type == SD_RSP_TYPE_R2) {
206 reg_addr = PPBUF_BASE2;
207 len = 16;
208 } else {
209 reg_addr = SD_CMD0;
210 len = 5;
211 }
212 retval = rts51x_seq_read_register(chip, reg_addr,
213 (unsigned short)len, buf);
214 if (retval != STATUS_SUCCESS)
215 TRACE_RET(chip, retval);
216 }
217 stat = chip->rsp_buf[1];
218
219 /* Check (Start,Transmission) bit of Response */
220 if ((buf[0] & 0xC0) != 0) {
221 sd_set_err_code(chip, SD_STS_ERR);
222 TRACE_RET(chip, STATUS_FAIL);
223 }
224 /* Check CRC7 */
225 if (!(rsp_type & SD_NO_CHECK_CRC7)) {
226 if (stat & SD_CRC7_ERR) {
227 if (cmd_idx == WRITE_MULTIPLE_BLOCK) {
228 sd_set_err_code(chip, SD_CRC_ERR);
229 TRACE_RET(chip, STATUS_FAIL);
230 }
231 if (rty_cnt < SD_MAX_RETRY_COUNT) {
232 wait_timeout(20);
233 rty_cnt++;
234 goto RTY_SEND_CMD;
235 } else {
236 sd_set_err_code(chip, SD_CRC_ERR);
237 TRACE_RET(chip, STATUS_FAIL);
238 }
239 }
240 }
241 /* Check Status */
242 if ((rsp_type == SD_RSP_TYPE_R1) || (rsp_type == SD_RSP_TYPE_R1b)) {
243 if ((cmd_idx != SEND_RELATIVE_ADDR)
244 && (cmd_idx != SEND_IF_COND)) {
245 if (cmd_idx != STOP_TRANSMISSION) {
246 if (buf[1] & 0x80)
247 TRACE_RET(chip, STATUS_FAIL);
248 }
249 if (buf[1] & 0x7F) {
250 RTS51X_DEBUGP("buf[1]: 0x%02x\n", buf[1]);
251 TRACE_RET(chip, STATUS_FAIL);
252 }
253 if (buf[2] & 0xFF) {
254 RTS51X_DEBUGP("buf[2]: 0x%02x\n", buf[2]);
255 TRACE_RET(chip, STATUS_FAIL);
256 }
257 if (buf[3] & 0x80) {
258 RTS51X_DEBUGP("buf[3]: 0x%02x\n", buf[3]);
259 TRACE_RET(chip, STATUS_FAIL);
260 }
261 if (buf[3] & 0x01) {
262 /* Get "READY_FOR_DATA" bit */
263 sd_card->sd_data_buf_ready = 1;
264 } else {
265 sd_card->sd_data_buf_ready = 0;
266 }
267 }
268 }
269
270 if (rsp && rsp_len)
271 memcpy(rsp, buf, rsp_len);
272
273 return STATUS_SUCCESS;
274 }
275
276 static inline void sd_print_debug_reg(struct rts51x_chip *chip)
277 {
278 #ifdef CONFIG_RTS5139_DEBUG
279 u8 val = 0;
280
281 rts51x_ep0_read_register(chip, SD_STAT1, &val);
282 RTS51X_DEBUGP("SD_STAT1: 0x%x\n", val);
283 rts51x_ep0_read_register(chip, SD_STAT2, &val);
284 RTS51X_DEBUGP("SD_STAT2: 0x%x\n", val);
285 rts51x_ep0_read_register(chip, SD_BUS_STAT, &val);
286 RTS51X_DEBUGP("SD_BUS_STAT: 0x%x\n", val);
287 #endif
288 }
289
290 int sd_read_data(struct rts51x_chip *chip, u8 trans_mode, u8 *cmd, int cmd_len,
291 u16 byte_cnt, u16 blk_cnt, u8 bus_width, u8 *buf, int buf_len,
292 int timeout)
293 {
294 struct sd_info *sd_card = &(chip->sd_card);
295 int retval;
296 int i;
297
298 sd_clr_err_code(chip);
299
300 if (!buf)
301 buf_len = 0;
302
303 if (buf_len > 512)
304 /* This function can't read data more than one page */
305 TRACE_RET(chip, STATUS_FAIL);
306
307 rts51x_init_cmd(chip);
308
309 if (cmd_len) {
310 RTS51X_DEBUGP("SD/MMC CMD %d\n", cmd[0] - 0x40);
311 for (i = 0; i < (cmd_len < 6 ? cmd_len : 6); i++) {
312 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0 + i, 0xFF,
313 cmd[i]);
314 }
315 }
316 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, (u8) byte_cnt);
317 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF,
318 (u8) (byte_cnt >> 8));
319 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, (u8) blk_cnt);
320 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF,
321 (u8) (blk_cnt >> 8));
322
323 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0x03, bus_width);
324
325 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
326 SD_CALCULATE_CRC7 | SD_CHECK_CRC16 | SD_NO_WAIT_BUSY_END
327 | SD_CHECK_CRC7 | SD_RSP_LEN_6);
328 if (trans_mode != SD_TM_AUTO_TUNING) {
329 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01,
330 PINGPONG_BUFFER);
331 }
332 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
333 trans_mode | SD_TRANSFER_START);
334 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER, SD_TRANSFER_END,
335 SD_TRANSFER_END);
336
337 retval = rts51x_send_cmd(chip, MODE_CR, 100);
338 if (retval != STATUS_SUCCESS)
339 TRACE_RET(chip, retval);
340
341 retval = rts51x_get_rsp(chip, 1, timeout);
342
343 if (CHECK_SD_TRANS_FAIL(chip, retval)) {
344 sd_print_debug_reg(chip);
345 if (retval == STATUS_TIMEDOUT) {
346 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
347 SD_RSP_TYPE_R1, NULL, 0);
348 }
349
350 TRACE_RET(chip, STATUS_FAIL);
351 }
352
353 if (buf && buf_len) {
354 retval = rts51x_read_ppbuf(chip, buf, buf_len);
355 if (retval != STATUS_SUCCESS)
356 TRACE_RET(chip, retval);
357 }
358
359 return STATUS_SUCCESS;
360 }
361
362 static int sd_write_data(struct rts51x_chip *chip, u8 trans_mode,
363 u8 *cmd, int cmd_len, u16 byte_cnt, u16 blk_cnt,
364 u8 bus_width, u8 *buf, int buf_len, int timeout)
365 {
366 struct sd_info *sd_card = &(chip->sd_card);
367 int retval;
368 int i;
369
370 sd_clr_err_code(chip);
371
372 if (!buf)
373 buf_len = 0;
374
375 /* This function can't write data more than one page */
376 if (buf_len > 512)
377 TRACE_RET(chip, STATUS_FAIL);
378
379 if (buf && buf_len) {
380 retval = rts51x_write_ppbuf(chip, buf, buf_len);
381 if (retval != STATUS_SUCCESS)
382 TRACE_RET(chip, retval);
383 }
384
385 rts51x_init_cmd(chip);
386
387 if (cmd_len) {
388 RTS51X_DEBUGP("SD/MMC CMD %d\n", cmd[0] - 0x40);
389 for (i = 0; i < (cmd_len < 6 ? cmd_len : 6); i++) {
390 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0 + i, 0xFF,
391 cmd[i]);
392 }
393 }
394 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, (u8) byte_cnt);
395 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF,
396 (u8) (byte_cnt >> 8));
397 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, (u8) blk_cnt);
398 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF,
399 (u8) (blk_cnt >> 8));
400
401 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0x03, bus_width);
402
403 if (cmd_len) {
404 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
405 SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
406 SD_WAIT_BUSY_END | SD_CHECK_CRC7 | SD_RSP_LEN_6);
407
408 } else {
409 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
410 SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
411 SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 |
412 SD_RSP_LEN_6);
413 }
414
415 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
416 trans_mode | SD_TRANSFER_START);
417 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER, SD_TRANSFER_END,
418 SD_TRANSFER_END);
419
420 retval = rts51x_send_cmd(chip, MODE_CR, 100);
421 if (retval != STATUS_SUCCESS)
422 TRACE_RET(chip, retval);
423
424 retval = rts51x_get_rsp(chip, 1, timeout);
425
426 if (CHECK_SD_TRANS_FAIL(chip, retval)) {
427 sd_print_debug_reg(chip);
428
429 if (retval == STATUS_TIMEDOUT)
430 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
431 SD_RSP_TYPE_R1, NULL, 0);
432
433 TRACE_RET(chip, STATUS_FAIL);
434 }
435
436 return STATUS_SUCCESS;
437 }
438
439 static int sd_check_csd(struct rts51x_chip *chip, char check_wp)
440 {
441 struct sd_info *sd_card = &(chip->sd_card);
442 int retval;
443 int i;
444 u8 csd_ver, trans_speed;
445 u8 rsp[16];
446
447 for (i = 0; i < 6; i++) {
448 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
449 sd_set_reset_fail(chip, SD_RESET_FAIL);
450 TRACE_RET(chip, STATUS_FAIL);
451 }
452
453 retval =
454 sd_send_cmd_get_rsp(chip, SEND_CSD, sd_card->sd_addr,
455 SD_RSP_TYPE_R2, rsp, 16);
456 if (retval == STATUS_SUCCESS)
457 break;
458 }
459
460 if (i == 6)
461 TRACE_RET(chip, STATUS_FAIL);
462 memcpy(sd_card->raw_csd, rsp + 1, 15);
463 /* Get CRC7 */
464 RTS51X_READ_REG(chip, SD_CMD5, sd_card->raw_csd + 15);
465
466 RTS51X_DEBUGP("CSD Response:\n");
467 RTS51X_DUMP(rsp, 16);
468
469 /* Get CSD Version */
470 csd_ver = (rsp[1] & 0xc0) >> 6;
471 RTS51X_DEBUGP("csd_ver = %d\n", csd_ver);
472
473 trans_speed = rsp[4];
474 if ((trans_speed & 0x07) == 0x02) { /* 10Mbits/s */
475 if ((trans_speed & 0xf8) >= 0x30) { /* >25Mbits/s */
476 if (chip->asic_code)
477 sd_card->sd_clock = 46;
478 else
479 sd_card->sd_clock = CLK_50;
480 } else if ((trans_speed & 0xf8) == 0x28) { /* 20Mbits/s */
481 if (chip->asic_code)
482 sd_card->sd_clock = 39;
483 else
484 sd_card->sd_clock = CLK_40;
485 } else if ((trans_speed & 0xf8) == 0x20) { /* 15Mbits/s */
486 if (chip->asic_code)
487 sd_card->sd_clock = 29;
488 else
489 sd_card->sd_clock = CLK_30;
490 } else if ((trans_speed & 0xf8) >= 0x10) { /* 12Mbits/s */
491 if (chip->asic_code)
492 sd_card->sd_clock = 23;
493 else
494 sd_card->sd_clock = CLK_20;
495 } else if ((trans_speed & 0x08) >= 0x08) { /* 10Mbits/s */
496 if (chip->asic_code)
497 sd_card->sd_clock = 19;
498 else
499 sd_card->sd_clock = CLK_20;
500 } /*else { */
501 /*If this ,then slow card will use 30M clock */
502 /* TRACE_RET(chip, STATUS_FAIL); */
503 /* } */
504 }
505 /*else {
506 TRACE_RET(chip, STATUS_FAIL);
507 } */
508 if (CHK_MMC_SECTOR_MODE(sd_card)) {
509 sd_card->capacity = 0;
510 } else {
511 /* For High-Capacity Card, CSD_STRUCTURE always be "0x1" */
512 if ((!CHK_SD_HCXC(sd_card)) || (csd_ver == 0)) {
513 /* Calculate total sector according to C_SIZE,
514 * C_SIZE_MULT & READ_BL_LEN */
515 u8 blk_size, c_size_mult;
516 u16 c_size;
517 /* Get READ_BL_LEN */
518 blk_size = rsp[6] & 0x0F;
519 /* Get C_SIZE */
520 c_size = ((u16) (rsp[7] & 0x03) << 10)
521 + ((u16) rsp[8] << 2)
522 + ((u16) (rsp[9] & 0xC0) >> 6);
523 /* Get C_SIZE_MUL */
524 c_size_mult = (u8) ((rsp[10] & 0x03) << 1);
525 c_size_mult += (rsp[11] & 0x80) >> 7;
526 /* Calculate total Capacity */
527 sd_card->capacity =
528 (((u32) (c_size + 1)) *
529 (1 << (c_size_mult + 2))) << (blk_size - 9);
530 } else {
531 /* High Capacity Card and Use CSD2.0 Version */
532 u32 total_sector = 0;
533 total_sector = (((u32) rsp[8] & 0x3f) << 16) |
534 ((u32) rsp[9] << 8) | (u32) rsp[10];
535 /* Total Capacity= (C_SIZE+1) *
536 * 512K Byte = (C_SIZE+1)K Sector,1K = 1024 Bytes */
537 sd_card->capacity = (total_sector + 1) << 10;
538 }
539 }
540
541 /* We need check Write-Protected Status by Field PERM WP or TEMP WP */
542 if (check_wp) {
543 if (rsp[15] & 0x30)
544 chip->card_wp |= SD_CARD;
545 RTS51X_DEBUGP("CSD WP Status: 0x%x\n", rsp[15]);
546 }
547
548 return STATUS_SUCCESS;
549 }
550
551 static int sd_set_sample_push_timing(struct rts51x_chip *chip)
552 {
553 struct sd_info *sd_card = &(chip->sd_card);
554 int retval;
555
556 rts51x_init_cmd(chip);
557
558 if (CHK_SD_SDR104(sd_card) || CHK_SD_SDR50(sd_card)) {
559 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1,
560 0x0C | SD_ASYNC_FIFO_RST,
561 SD_30_MODE | SD_ASYNC_FIFO_RST);
562 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_CLK_SOURCE, 0xFF,
563 CRC_VAR_CLK0 | SD30_FIX_CLK | SAMPLE_VAR_CLK1);
564 } else if (CHK_SD_DDR50(sd_card) || CHK_MMC_DDR52(sd_card)) {
565 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1,
566 0x0C | SD_ASYNC_FIFO_RST,
567 SD_DDR_MODE | SD_ASYNC_FIFO_RST);
568 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_CLK_SOURCE, 0xFF,
569 CRC_VAR_CLK0 | SD30_FIX_CLK | SAMPLE_VAR_CLK1);
570 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_PUSH_POINT_CTL,
571 DDR_VAR_TX_CMD_DAT, DDR_VAR_TX_CMD_DAT);
572 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_SAMPLE_POINT_CTL,
573 DDR_VAR_RX_DAT | DDR_VAR_RX_CMD,
574 DDR_VAR_RX_DAT | DDR_VAR_RX_CMD);
575 } else {
576 u8 val = 0;
577
578 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0x0C, SD_20_MODE);
579 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_CLK_SOURCE, 0xFF,
580 CRC_FIX_CLK | SD30_VAR_CLK0 | SAMPLE_VAR_CLK1);
581
582 if ((chip->option.sd_ctl & SD_PUSH_POINT_CTL_MASK) ==
583 SD_PUSH_POINT_AUTO) {
584 val = SD20_TX_NEG_EDGE;
585 } else if ((chip->option.sd_ctl & SD_PUSH_POINT_CTL_MASK) ==
586 SD_PUSH_POINT_DELAY) {
587 val = SD20_TX_14_AHEAD;
588 } else {
589 val = SD20_TX_NEG_EDGE;
590 }
591 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_PUSH_POINT_CTL,
592 SD20_TX_SEL_MASK, val);
593
594 if ((chip->option.sd_ctl & SD_SAMPLE_POINT_CTL_MASK) ==
595 SD_SAMPLE_POINT_AUTO) {
596 if (chip->asic_code) {
597 if (CHK_SD_HS(sd_card) || CHK_MMC_52M(sd_card))
598 val = SD20_RX_14_DELAY;
599 else
600 val = SD20_RX_POS_EDGE;
601 } else {
602 val = SD20_RX_14_DELAY;
603 }
604 } else if ((chip->option.sd_ctl & SD_SAMPLE_POINT_CTL_MASK) ==
605 SD_SAMPLE_POINT_DELAY) {
606 val = SD20_RX_14_DELAY;
607 } else {
608 val = SD20_RX_POS_EDGE;
609 }
610 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_SAMPLE_POINT_CTL,
611 SD20_RX_SEL_MASK, val);
612 }
613
614 if (CHK_MMC_DDR52(sd_card) && CHK_MMC_8BIT(sd_card)) {
615 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DMA1_CTL,
616 EXTEND_DMA1_ASYNC_SIGNAL, 0);
617 }
618
619 retval = rts51x_send_cmd(chip, MODE_C, 100);
620 if (retval != STATUS_SUCCESS)
621 TRACE_RET(chip, retval);
622
623 return STATUS_SUCCESS;
624 }
625
626 static void sd_choose_proper_clock(struct rts51x_chip *chip)
627 {
628 struct sd_info *sd_card = &(chip->sd_card);
629
630 if (CHK_SD_SDR104(sd_card)) {
631 if (chip->asic_code)
632 sd_card->sd_clock = chip->option.asic_sd_sdr104_clk;
633 else
634 sd_card->sd_clock = chip->option.fpga_sd_sdr104_clk;
635 } else if (CHK_SD_DDR50(sd_card)) {
636 if (chip->asic_code)
637 sd_card->sd_clock = chip->option.asic_sd_ddr50_clk;
638 else
639 sd_card->sd_clock = chip->option.fpga_sd_ddr50_clk;
640 } else if (CHK_SD_SDR50(sd_card)) {
641 if (chip->asic_code)
642 sd_card->sd_clock = chip->option.asic_sd_sdr50_clk;
643 else
644 sd_card->sd_clock = chip->option.fpga_sd_sdr50_clk;
645 } else if (CHK_SD_HS(sd_card)) {
646 if (chip->asic_code)
647 sd_card->sd_clock = chip->option.asic_sd_hs_clk;
648 else
649 sd_card->sd_clock = chip->option.fpga_sd_hs_clk;
650 } else if (CHK_MMC_52M(sd_card) || CHK_MMC_DDR52(sd_card)) {
651 if (chip->asic_code)
652 sd_card->sd_clock = chip->option.asic_mmc_52m_clk;
653 else
654 sd_card->sd_clock = chip->option.fpga_mmc_52m_clk;
655 } else if (CHK_MMC_26M(sd_card)) {
656 if (chip->asic_code) {
657 sd_card->sd_clock = 46;
658 RTS51X_DEBUGP("Set MMC clock to 22.5MHz\n");
659 } else {
660 sd_card->sd_clock = CLK_50;
661 }
662 }
663 }
664
665 static int sd_set_init_para(struct rts51x_chip *chip)
666 {
667 struct sd_info *sd_card = &(chip->sd_card);
668 int retval;
669
670 retval = sd_set_sample_push_timing(chip);
671 if (retval != STATUS_SUCCESS)
672 TRACE_RET(chip, retval);
673
674 sd_choose_proper_clock(chip);
675
676 retval = switch_clock(chip, sd_card->sd_clock);
677 if (retval != STATUS_SUCCESS)
678 TRACE_RET(chip, retval);
679
680 return STATUS_SUCCESS;
681 }
682
683 int rts51x_sd_select_card(struct rts51x_chip *chip, int select)
684 {
685 struct sd_info *sd_card = &(chip->sd_card);
686 int retval;
687 u8 cmd_idx, cmd_type;
688 u32 addr;
689
690 if (select) {
691 cmd_idx = SELECT_CARD;
692 cmd_type = SD_RSP_TYPE_R1;
693 addr = sd_card->sd_addr;
694 } else {
695 cmd_idx = DESELECT_CARD;
696 cmd_type = SD_RSP_TYPE_R0;
697 addr = 0;
698 }
699
700 retval = sd_send_cmd_get_rsp(chip, cmd_idx, addr, cmd_type, NULL, 0);
701 if (retval != STATUS_SUCCESS)
702 TRACE_RET(chip, retval);
703
704 return STATUS_SUCCESS;
705 }
706
707 static int sd_wait_currentstate_dataready(struct rts51x_chip *chip, u8 statechk,
708 u8 rdychk, u16 pollingcnt)
709 {
710 struct sd_info *sd_card = &(chip->sd_card);
711 int retval;
712 u8 rsp[5];
713 u16 i;
714
715 for (i = 0; i < pollingcnt; i++) {
716
717 retval =
718 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
719 SD_RSP_TYPE_R1, rsp, 5);
720 if (retval == STATUS_SUCCESS) {
721 if (((rsp[3] & 0x1E) == statechk)
722 && ((rsp[3] & 0x01) == rdychk)) {
723 return STATUS_SUCCESS;
724 }
725 } else {
726 rts51x_clear_sd_error(chip);
727 TRACE_RET(chip, STATUS_FAIL);
728 }
729 }
730
731 return STATUS_TIMEDOUT;
732 }
733
734 static int sd_voltage_switch(struct rts51x_chip *chip)
735 {
736 int retval;
737 u8 stat;
738
739 RTS51X_WRITE_REG(chip, SD_BUS_STAT,
740 SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP,
741 SD_CLK_TOGGLE_EN);
742
743 retval =
744 sd_send_cmd_get_rsp(chip, VOLTAGE_SWITCH, 0, SD_RSP_TYPE_R1, NULL,
745 0);
746 if (retval != STATUS_SUCCESS)
747 TRACE_RET(chip, retval);
748
749 RTS51X_READ_REG(chip, SD_BUS_STAT, &stat);
750 if (stat & (SD_CMD_STATUS | SD_DAT3_STATUS | SD_DAT2_STATUS |
751 SD_DAT1_STATUS | SD_DAT0_STATUS))
752 TRACE_RET(chip, STATUS_FAIL);
753
754 rts51x_init_cmd(chip);
755 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BUS_STAT, 0xFF,
756 SD_CLK_FORCE_STOP);
757 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_PAD_CTL, SD_IO_USING_1V8,
758 SD_IO_USING_1V8);
759 if (chip->asic_code)
760 rts51x_add_cmd(chip, WRITE_REG_CMD, LDO_POWER_CFG,
761 TUNE_SD18_MASK, TUNE_SD18_1V8);
762 retval = rts51x_send_cmd(chip, MODE_C, 100);
763 if (retval != STATUS_SUCCESS)
764 TRACE_RET(chip, retval);
765
766 wait_timeout(chip->option.D3318_off_delay);
767
768 RTS51X_WRITE_REG(chip, SD_BUS_STAT, 0xFF, SD_CLK_TOGGLE_EN);
769 wait_timeout(10);
770
771 RTS51X_READ_REG(chip, SD_BUS_STAT, &stat);
772 if ((stat & (SD_CMD_STATUS | SD_DAT3_STATUS | SD_DAT2_STATUS |
773 SD_DAT1_STATUS | SD_DAT0_STATUS)) !=
774 (SD_CMD_STATUS | SD_DAT3_STATUS | SD_DAT2_STATUS |
775 SD_DAT1_STATUS | SD_DAT0_STATUS)) {
776 rts51x_init_cmd(chip);
777 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BUS_STAT, 0xFF,
778 SD_CLK_FORCE_STOP);
779 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_CLK_EN, 0xFF, 0);
780 rts51x_send_cmd(chip, MODE_C, 100);
781 TRACE_RET(chip, STATUS_FAIL);
782 }
783 RTS51X_WRITE_REG(chip, SD_BUS_STAT,
784 SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP, 0);
785
786 return STATUS_SUCCESS;
787 }
788
789 static int sd_change_phase(struct rts51x_chip *chip, u8 sample_point,
790 u8 tune_dir)
791 {
792 u16 SD_VP_CTL, SD_DCMPS_CTL;
793 u8 val;
794 int retval;
795
796 RTS51X_DEBUGP("sd_change_phase (sample_point = %d, tune_dir = %d)\n",
797 sample_point, tune_dir);
798
799 if (tune_dir == TUNE_RX) {
800 SD_VP_CTL = SD_VPCLK1_CTL;
801 SD_DCMPS_CTL = SD_DCMPS1_CTL;
802 } else {
803 SD_VP_CTL = SD_VPCLK0_CTL;
804 SD_DCMPS_CTL = SD_DCMPS0_CTL;
805 }
806
807 if (chip->asic_code) {
808 RTS51X_WRITE_REG(chip, CLK_DIV, CLK_CHANGE, CLK_CHANGE);
809 RTS51X_WRITE_REG(chip, SD_VP_CTL, 0x1F, sample_point);
810 RTS51X_WRITE_REG(chip, SD_VPCLK0_CTL, PHASE_NOT_RESET, 0);
811 RTS51X_WRITE_REG(chip, SD_VPCLK0_CTL, PHASE_NOT_RESET,
812 PHASE_NOT_RESET);
813 RTS51X_WRITE_REG(chip, CLK_DIV, CLK_CHANGE, 0);
814 } else {
815 #ifdef CONFIG_RTS5139_DEBUG
816 RTS51X_READ_REG(chip, SD_VP_CTL, &val);
817 RTS51X_DEBUGP("SD_VP_CTL: 0x%x\n", val);
818 RTS51X_READ_REG(chip, SD_DCMPS_CTL, &val);
819 RTS51X_DEBUGP("SD_DCMPS_CTL: 0x%x\n", val);
820 #endif
821
822 RTS51X_WRITE_REG(chip, CLK_DIV, CLK_CHANGE, CLK_CHANGE);
823 udelay(100);
824 RTS51X_WRITE_REG(chip, SD_VP_CTL, 0xFF,
825 PHASE_NOT_RESET | sample_point);
826 udelay(200);
827
828 rts51x_init_cmd(chip);
829 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_DCMPS_CTL, DCMPS_CHANGE,
830 DCMPS_CHANGE);
831 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_DCMPS_CTL,
832 DCMPS_CHANGE_DONE, DCMPS_CHANGE_DONE);
833 retval = rts51x_send_cmd(chip, MODE_CR, 100);
834 if (retval != STATUS_SUCCESS)
835 TRACE_GOTO(chip, Fail);
836
837 retval = rts51x_get_rsp(chip, 1, 500);
838 if (retval != STATUS_SUCCESS)
839 TRACE_GOTO(chip, Fail);
840
841 val = chip->rsp_buf[0];
842 if (val & DCMPS_ERROR)
843 TRACE_GOTO(chip, Fail);
844 if ((val & DCMPS_CURRENT_PHASE) != sample_point)
845 TRACE_GOTO(chip, Fail);
846 RTS51X_WRITE_REG(chip, SD_DCMPS_CTL, DCMPS_CHANGE, 0);
847 RTS51X_WRITE_REG(chip, CLK_DIV, CLK_CHANGE, 0);
848 udelay(100);
849 }
850
851 RTS51X_WRITE_REG(chip, SD_CFG1, SD_ASYNC_FIFO_RST, 0);
852
853 return STATUS_SUCCESS;
854
855 Fail:
856 #ifdef CONFIG_RTS5139_DEBUG
857 rts51x_ep0_read_register(chip, SD_VP_CTL, &val);
858 RTS51X_DEBUGP("SD_VP_CTL: 0x%x\n", val);
859 rts51x_ep0_read_register(chip, SD_DCMPS_CTL, &val);
860 RTS51X_DEBUGP("SD_DCMPS_CTL: 0x%x\n", val);
861 #endif
862
863 RTS51X_WRITE_REG(chip, SD_DCMPS_CTL, DCMPS_CHANGE, 0);
864 RTS51X_WRITE_REG(chip, SD_VP_CTL, PHASE_CHANGE, 0);
865 wait_timeout(10);
866
867 return STATUS_FAIL;
868 }
869
870 static int sd_check_spec(struct rts51x_chip *chip, u8 bus_width)
871 {
872 struct sd_info *sd_card = &(chip->sd_card);
873 int retval;
874 u8 cmd[5], buf[8];
875
876 retval =
877 sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1,
878 NULL, 0);
879 if (retval != STATUS_SUCCESS)
880 TRACE_RET(chip, STATUS_FAIL);
881
882 cmd[0] = 0x40 | SEND_SCR;
883 cmd[1] = 0;
884 cmd[2] = 0;
885 cmd[3] = 0;
886 cmd[4] = 0;
887
888 retval =
889 sd_read_data(chip, SD_TM_NORMAL_READ, cmd, 5, 8, 1, bus_width, buf,
890 8, 250);
891 if (retval != STATUS_SUCCESS) {
892 rts51x_clear_sd_error(chip);
893 TRACE_RET(chip, retval);
894 }
895
896 memcpy(sd_card->raw_scr, buf, 8);
897
898 if ((buf[0] & 0x0F) == 0)
899 TRACE_RET(chip, STATUS_FAIL);
900
901 return STATUS_SUCCESS;
902 }
903
904 static int sd_query_switch_result(struct rts51x_chip *chip, u8 func_group,
905 u8 func_to_switch, u8 *buf, int buf_len)
906 {
907 u8 support_mask = 0, query_switch = 0, switch_busy = 0;
908 int support_offset = 0, query_switch_offset = 0, check_busy_offset = 0;
909
910 if (func_group == SD_FUNC_GROUP_1) {
911 support_offset = FUNCTION_GROUP1_SUPPORT_OFFSET;
912 query_switch_offset = FUNCTION_GROUP1_QUERY_SWITCH_OFFSET;
913 check_busy_offset = FUNCTION_GROUP1_CHECK_BUSY_OFFSET;
914
915 switch (func_to_switch) {
916 case HS_SUPPORT:
917 support_mask = HS_SUPPORT_MASK;
918 query_switch = HS_QUERY_SWITCH_OK;
919 switch_busy = HS_SWITCH_BUSY;
920 break;
921
922 case SDR50_SUPPORT:
923 support_mask = SDR50_SUPPORT_MASK;
924 query_switch = SDR50_QUERY_SWITCH_OK;
925 switch_busy = SDR50_SWITCH_BUSY;
926 break;
927
928 case SDR104_SUPPORT:
929 support_mask = SDR104_SUPPORT_MASK;
930 query_switch = SDR104_QUERY_SWITCH_OK;
931 switch_busy = SDR104_SWITCH_BUSY;
932 break;
933
934 case DDR50_SUPPORT:
935 support_mask = DDR50_SUPPORT_MASK;
936 query_switch = DDR50_QUERY_SWITCH_OK;
937 switch_busy = DDR50_SWITCH_BUSY;
938 break;
939
940 default:
941 TRACE_RET(chip, STATUS_FAIL);
942 }
943 } else if (func_group == SD_FUNC_GROUP_3) {
944 support_offset = FUNCTION_GROUP3_SUPPORT_OFFSET;
945 query_switch_offset = FUNCTION_GROUP3_QUERY_SWITCH_OFFSET;
946 check_busy_offset = FUNCTION_GROUP3_CHECK_BUSY_OFFSET;
947
948 switch (func_to_switch) {
949 case DRIVING_TYPE_A:
950 support_mask = DRIVING_TYPE_A_MASK;
951 query_switch = TYPE_A_QUERY_SWITCH_OK;
952 switch_busy = TYPE_A_SWITCH_BUSY;
953 break;
954
955 case DRIVING_TYPE_C:
956 support_mask = DRIVING_TYPE_C_MASK;
957 query_switch = TYPE_C_QUERY_SWITCH_OK;
958 switch_busy = TYPE_C_SWITCH_BUSY;
959 break;
960
961 case DRIVING_TYPE_D:
962 support_mask = DRIVING_TYPE_D_MASK;
963 query_switch = TYPE_D_QUERY_SWITCH_OK;
964 switch_busy = TYPE_D_SWITCH_BUSY;
965 break;
966
967 default:
968 TRACE_RET(chip, STATUS_FAIL);
969 }
970 } else if (func_group == SD_FUNC_GROUP_4) {
971 support_offset = FUNCTION_GROUP4_SUPPORT_OFFSET;
972 query_switch_offset = FUNCTION_GROUP4_QUERY_SWITCH_OFFSET;
973 check_busy_offset = FUNCTION_GROUP4_CHECK_BUSY_OFFSET;
974
975 switch (func_to_switch) {
976 case CURRENT_LIMIT_400:
977 support_mask = CURRENT_LIMIT_400_MASK;
978 query_switch = CURRENT_LIMIT_400_QUERY_SWITCH_OK;
979 switch_busy = CURRENT_LIMIT_400_SWITCH_BUSY;
980 break;
981
982 case CURRENT_LIMIT_600:
983 support_mask = CURRENT_LIMIT_600_MASK;
984 query_switch = CURRENT_LIMIT_600_QUERY_SWITCH_OK;
985 switch_busy = CURRENT_LIMIT_600_SWITCH_BUSY;
986 break;
987
988 case CURRENT_LIMIT_800:
989 support_mask = CURRENT_LIMIT_800_MASK;
990 query_switch = CURRENT_LIMIT_800_QUERY_SWITCH_OK;
991 switch_busy = CURRENT_LIMIT_800_SWITCH_BUSY;
992 break;
993
994 default:
995 TRACE_RET(chip, STATUS_FAIL);
996 }
997 } else {
998 TRACE_RET(chip, STATUS_FAIL);
999 }
1000
1001 if (func_group == SD_FUNC_GROUP_4)
1002 buf[query_switch_offset] =
1003 (buf[query_switch_offset] & 0xf0) >> 4;
1004 if (!(buf[support_offset] & support_mask) ||
1005 ((buf[query_switch_offset] & 0x0F) != query_switch))
1006 TRACE_RET(chip, STATUS_FAIL);
1007
1008 if ((buf[DATA_STRUCTURE_VER_OFFSET] == 0x01) &&
1009 ((buf[check_busy_offset] & switch_busy) == switch_busy))
1010 TRACE_RET(chip, STATUS_FAIL);
1011
1012 return STATUS_SUCCESS;
1013 }
1014
1015 static int sd_check_switch_mode(struct rts51x_chip *chip, u8 mode,
1016 u8 func_group, u8 func_to_switch, u8 bus_width)
1017 {
1018 struct sd_info *sd_card = &(chip->sd_card);
1019 int retval;
1020 u8 cmd[5], buf[64];
1021
1022 RTS51X_DEBUGP("sd_check_switch_mode (mode = %d, func_group = %d,"
1023 "func_to_switch = %d)\n", mode, func_group, func_to_switch);
1024
1025 cmd[0] = 0x40 | SWITCH;
1026 cmd[1] = mode;
1027
1028 if (func_group == SD_FUNC_GROUP_1) {
1029 cmd[2] = 0xFF;
1030 cmd[3] = 0xFF;
1031 cmd[4] = 0xF0 + func_to_switch;
1032 } else if (func_group == SD_FUNC_GROUP_3) {
1033 cmd[2] = 0xFF;
1034 cmd[3] = 0xF0 + func_to_switch;
1035 cmd[4] = 0xFF;
1036 } else if (func_group == SD_FUNC_GROUP_4) {
1037 cmd[2] = 0xFF;
1038 cmd[3] = 0x0F + (func_to_switch << 4);
1039 cmd[4] = 0xFF;
1040 } else {
1041 cmd[1] = SD_CHECK_MODE;
1042 cmd[2] = 0xFF;
1043 cmd[3] = 0xFF;
1044 cmd[4] = 0xFF;
1045 }
1046
1047 retval =
1048 sd_read_data(chip, SD_TM_NORMAL_READ, cmd, 5, 64, 1, bus_width, buf,
1049 64, 250);
1050 if (retval != STATUS_SUCCESS) {
1051 rts51x_clear_sd_error(chip);
1052 TRACE_RET(chip, retval);
1053 }
1054
1055 if (func_group == NO_ARGUMENT) {
1056 sd_card->func_group1_mask = buf[0x0D];
1057 sd_card->func_group2_mask = buf[0x0B];
1058 sd_card->func_group3_mask = buf[0x09];
1059 sd_card->func_group4_mask = buf[0x07];
1060
1061 RTS51X_DEBUGP("func_group1_mask = 0x%02x\n", buf[0x0D]);
1062 RTS51X_DEBUGP("func_group2_mask = 0x%02x\n", buf[0x0B]);
1063 RTS51X_DEBUGP("func_group3_mask = 0x%02x\n", buf[0x09]);
1064 RTS51X_DEBUGP("func_group4_mask = 0x%02x\n", buf[0x07]);
1065 } else {
1066 if ((buf[0] == 0) && (buf[1] == 0))
1067 TRACE_RET(chip, STATUS_FAIL);
1068 retval =
1069 sd_query_switch_result(chip, func_group, func_to_switch,
1070 buf, 64);
1071 if (retval != STATUS_SUCCESS)
1072 TRACE_RET(chip, retval);
1073 }
1074
1075 return STATUS_SUCCESS;
1076 }
1077
1078 static int sd_check_switch(struct rts51x_chip *chip,
1079 u8 func_group, u8 func_to_switch, u8 bus_width)
1080 {
1081 int retval;
1082 int i;
1083 int switch_good = 0;
1084
1085 for (i = 0; i < 3; i++) {
1086 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
1087 sd_set_reset_fail(chip, SD_RESET_FAIL);
1088 TRACE_RET(chip, STATUS_FAIL);
1089 }
1090
1091 retval = sd_check_switch_mode(chip, SD_CHECK_MODE, func_group,
1092 func_to_switch, bus_width);
1093 if (retval == STATUS_SUCCESS) {
1094 u8 stat;
1095
1096 retval = sd_check_switch_mode(chip, SD_SWITCH_MODE,
1097 func_group, func_to_switch, bus_width);
1098 if (retval == STATUS_SUCCESS) {
1099 switch_good = 1;
1100 break;
1101 }
1102
1103 RTS51X_READ_REG(chip, SD_STAT1, &stat);
1104
1105 if (stat & SD_CRC16_ERR) {
1106 RTS51X_DEBUGP("SD CRC16 error when switching"
1107 "mode\n");
1108 TRACE_RET(chip, STATUS_FAIL);
1109 }
1110 }
1111
1112 wait_timeout(20);
1113 }
1114
1115 if (!switch_good)
1116 TRACE_RET(chip, STATUS_FAIL);
1117
1118 return STATUS_SUCCESS;
1119 }
1120
1121 static int sd_switch_function(struct rts51x_chip *chip, u8 bus_width)
1122 {
1123 struct sd_info *sd_card = &(chip->sd_card);
1124 int retval;
1125 int i;
1126 u8 func_to_switch = 0;
1127
1128 /* Get supported functions */
1129 retval = sd_check_switch_mode(chip, SD_CHECK_MODE,
1130 NO_ARGUMENT, NO_ARGUMENT, bus_width);
1131 if (retval != STATUS_SUCCESS)
1132 TRACE_RET(chip, retval);
1133
1134 sd_card->func_group1_mask &= ~(sd_card->sd_switch_fail);
1135
1136 for (i = 0; i < 4; i++) {
1137 switch ((u8) (chip->option.sd_speed_prior >> (i * 8))) {
1138 case DDR50_SUPPORT:
1139 if ((sd_card->func_group1_mask & DDR50_SUPPORT_MASK)
1140 && (CHECK_UHS50(chip)))
1141 func_to_switch = DDR50_SUPPORT;
1142 break;
1143
1144 case SDR50_SUPPORT:
1145 if ((sd_card->func_group1_mask & SDR50_SUPPORT_MASK)
1146 && (CHECK_UHS50(chip)))
1147 func_to_switch = SDR50_SUPPORT;
1148 break;
1149
1150 case HS_SUPPORT:
1151 if (sd_card->func_group1_mask & HS_SUPPORT_MASK)
1152 func_to_switch = HS_SUPPORT;
1153 break;
1154
1155 default:
1156 continue;
1157 }
1158
1159 if (func_to_switch)
1160 break;
1161 }
1162 RTS51X_DEBUGP("SD_FUNC_GROUP_1: func_to_switch = 0x%02x",
1163 func_to_switch);
1164
1165 if (func_to_switch) {
1166 retval =
1167 sd_check_switch(chip, SD_FUNC_GROUP_1, func_to_switch,
1168 bus_width);
1169 if (retval != STATUS_SUCCESS) {
1170 if (func_to_switch == SDR104_SUPPORT)
1171 sd_card->sd_switch_fail = SDR104_SUPPORT_MASK;
1172 else if (func_to_switch == DDR50_SUPPORT)
1173 sd_card->sd_switch_fail = DDR50_SUPPORT_MASK;
1174 else if (func_to_switch == SDR50_SUPPORT)
1175 sd_card->sd_switch_fail = SDR50_SUPPORT_MASK;
1176 else if (func_to_switch == HS_SUPPORT)
1177 sd_card->sd_switch_fail = HS_SUPPORT_MASK;
1178
1179 TRACE_RET(chip, retval);
1180 }
1181
1182 if (func_to_switch == SDR104_SUPPORT)
1183 SET_SD_SDR104(sd_card);
1184 else if (func_to_switch == DDR50_SUPPORT)
1185 SET_SD_DDR50(sd_card);
1186 else if (func_to_switch == SDR50_SUPPORT)
1187 SET_SD_SDR50(sd_card);
1188 else
1189 SET_SD_HS(sd_card);
1190 }
1191
1192 if (CHK_SD_DDR50(sd_card))
1193 RTS51X_WRITE_REG(chip, SD_CFG1, 0x0C, SD_DDR_MODE);
1194
1195 func_to_switch = 0;
1196 if (sd_card->func_group4_mask & CURRENT_LIMIT_400_MASK)
1197 func_to_switch = CURRENT_LIMIT_400;
1198
1199 if (func_to_switch) {
1200 RTS51X_DEBUGP("Try to switch current_limit_400\n");
1201 retval =
1202 sd_check_switch(chip, SD_FUNC_GROUP_4, func_to_switch,
1203 bus_width);
1204 RTS51X_DEBUGP("Switch current_limit_400 status: (%d)\n",
1205 retval);
1206 }
1207
1208 return STATUS_SUCCESS;
1209 }
1210
1211 static int sd_wait_data_idle(struct rts51x_chip *chip)
1212 {
1213 int retval = STATUS_TIMEDOUT;
1214 int i;
1215 u8 val = 0;
1216
1217 for (i = 0; i < 100; i++) {
1218 retval = rts51x_ep0_read_register(chip, SD_DATA_STATE, &val);
1219 if (retval != STATUS_SUCCESS)
1220 TRACE_RET(chip, STATUS_FAIL);
1221 if (val & SD_DATA_IDLE) {
1222 retval = STATUS_SUCCESS;
1223 break;
1224 }
1225 udelay(100);
1226 }
1227 RTS51X_DEBUGP("SD_DATA_STATE: 0x%02x\n", val);
1228
1229 return retval;
1230 }
1231
1232 static int sd_sdr_tuning_rx_cmd(struct rts51x_chip *chip, u8 sample_point)
1233 {
1234 int retval;
1235 u8 cmd[5];
1236
1237 retval = sd_change_phase(chip, sample_point, TUNE_RX);
1238 if (retval != STATUS_SUCCESS)
1239 TRACE_RET(chip, retval);
1240
1241 cmd[0] = 0x40 | SEND_TUNING_PATTERN;
1242 cmd[1] = 0;
1243 cmd[2] = 0;
1244 cmd[3] = 0;
1245 cmd[4] = 0;
1246
1247 retval = sd_read_data(chip, SD_TM_AUTO_TUNING,
1248 cmd, 5, 0x40, 1, SD_BUS_WIDTH_4, NULL, 0, 100);
1249 if (retval != STATUS_SUCCESS) {
1250 /* Wait till SD DATA IDLE */
1251 (void)sd_wait_data_idle(chip);
1252
1253 rts51x_clear_sd_error(chip);
1254 TRACE_RET(chip, STATUS_FAIL);
1255 }
1256
1257 return STATUS_SUCCESS;
1258 }
1259
1260 static int sd_ddr_tuning_rx_cmd(struct rts51x_chip *chip, u8 sample_point)
1261 {
1262 struct sd_info *sd_card = &(chip->sd_card);
1263 int retval;
1264 u8 cmd[5];
1265
1266 retval = sd_change_phase(chip, sample_point, TUNE_RX);
1267 if (retval != STATUS_SUCCESS)
1268 TRACE_RET(chip, retval);
1269
1270 RTS51X_DEBUGP("sd ddr tuning rx\n");
1271
1272 retval =
1273 sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1,
1274 NULL, 0);
1275 if (retval != STATUS_SUCCESS)
1276 TRACE_RET(chip, retval);
1277
1278 cmd[0] = 0x40 | SD_STATUS;
1279 cmd[1] = 0;
1280 cmd[2] = 0;
1281 cmd[3] = 0;
1282 cmd[4] = 0;
1283
1284 retval = sd_read_data(chip, SD_TM_NORMAL_READ,
1285 cmd, 5, 64, 1, SD_BUS_WIDTH_4, NULL, 0, 100);
1286 if (retval != STATUS_SUCCESS) {
1287 /* Wait till SD DATA IDLE */
1288 (void)sd_wait_data_idle(chip);
1289
1290 rts51x_clear_sd_error(chip);
1291 TRACE_RET(chip, STATUS_FAIL);
1292 }
1293
1294 return STATUS_SUCCESS;
1295 }
1296
1297 static int mmc_ddr_tunning_rx_cmd(struct rts51x_chip *chip, u8 sample_point)
1298 {
1299 struct sd_info *sd_card = &(chip->sd_card);
1300 int retval;
1301 u8 cmd[5], bus_width;
1302
1303 if (CHK_MMC_8BIT(sd_card))
1304 bus_width = SD_BUS_WIDTH_8;
1305 else if (CHK_MMC_4BIT(sd_card))
1306 bus_width = SD_BUS_WIDTH_4;
1307 else
1308 bus_width = SD_BUS_WIDTH_1;
1309
1310 retval = sd_change_phase(chip, sample_point, TUNE_RX);
1311 if (retval != STATUS_SUCCESS)
1312 TRACE_RET(chip, retval);
1313
1314 RTS51X_DEBUGP("mmc ddr tuning rx\n");
1315
1316 cmd[0] = 0x40 | SEND_EXT_CSD;
1317 cmd[1] = 0;
1318 cmd[2] = 0;
1319 cmd[3] = 0;
1320 cmd[4] = 0;
1321
1322 retval = sd_read_data(chip, SD_TM_NORMAL_READ,
1323 cmd, 5, 0x200, 1, bus_width, NULL, 0, 100);
1324 if (retval != STATUS_SUCCESS) {
1325 /* Wait till SD DATA IDLE */
1326 (void)sd_wait_data_idle(chip);
1327
1328 rts51x_clear_sd_error(chip);
1329 TRACE_RET(chip, STATUS_FAIL);
1330 }
1331
1332 return STATUS_SUCCESS;
1333 }
1334
1335 static int sd_sdr_tuning_tx_cmd(struct rts51x_chip *chip, u8 sample_point)
1336 {
1337 struct sd_info *sd_card = &(chip->sd_card);
1338 int retval;
1339
1340 retval = sd_change_phase(chip, sample_point, TUNE_TX);
1341 if (retval != STATUS_SUCCESS)
1342 TRACE_RET(chip, retval);
1343
1344 RTS51X_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
1345 SD_RSP_80CLK_TIMEOUT_EN);
1346
1347 retval = sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
1348 SD_RSP_TYPE_R1, NULL, 0);
1349 if (retval != STATUS_SUCCESS) {
1350 if (sd_check_err_code(chip, SD_RSP_TIMEOUT)) {
1351 /* Tunning TX fail */
1352 rts51x_ep0_write_register(chip, SD_CFG3,
1353 SD_RSP_80CLK_TIMEOUT_EN, 0);
1354 TRACE_RET(chip, STATUS_FAIL);
1355 }
1356 }
1357
1358 RTS51X_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
1359
1360 return STATUS_SUCCESS;
1361 }
1362
1363 static int sd_ddr_tuning_tx_cmd(struct rts51x_chip *chip, u8 sample_point)
1364 {
1365 struct sd_info *sd_card = &(chip->sd_card);
1366 int retval;
1367 u8 cmd[5], bus_width;
1368
1369 retval = sd_change_phase(chip, sample_point, TUNE_TX);
1370 if (retval != STATUS_SUCCESS)
1371 TRACE_RET(chip, retval);
1372
1373 if (CHK_SD(sd_card)) {
1374 bus_width = SD_BUS_WIDTH_4;
1375 } else {
1376 if (CHK_MMC_8BIT(sd_card))
1377 bus_width = SD_BUS_WIDTH_8;
1378 else if (CHK_MMC_4BIT(sd_card))
1379 bus_width = SD_BUS_WIDTH_4;
1380 else
1381 bus_width = SD_BUS_WIDTH_1;
1382 }
1383 retval = sd_wait_currentstate_dataready(chip, 0x08, 1, 20);
1384 if (retval != STATUS_SUCCESS)
1385 TRACE_RET(chip, STATUS_FAIL);
1386
1387 RTS51X_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
1388 SD_RSP_80CLK_TIMEOUT_EN);
1389
1390 cmd[0] = 0x40 | PROGRAM_CSD;
1391 cmd[1] = 0;
1392 cmd[2] = 0;
1393 cmd[3] = 0;
1394 cmd[4] = 0;
1395
1396 retval = sd_write_data(chip, SD_TM_AUTO_WRITE_2,
1397 cmd, 5, 16, 1, bus_width, sd_card->raw_csd, 16, 100);
1398 if (retval != STATUS_SUCCESS) {
1399 rts51x_clear_sd_error(chip);
1400 /* Tunning TX fail */
1401 rts51x_ep0_write_register(chip, SD_CFG3,
1402 SD_RSP_80CLK_TIMEOUT_EN, 0);
1403 TRACE_RET(chip, STATUS_FAIL);
1404 }
1405
1406 RTS51X_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
1407
1408 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr, SD_RSP_TYPE_R1,
1409 NULL, 0);
1410
1411 return STATUS_SUCCESS;
1412 }
1413
1414 static u8 sd_search_final_phase(struct rts51x_chip *chip, u32 phase_map,
1415 u8 tune_dir)
1416 {
1417 struct sd_info *sd_card = &(chip->sd_card);
1418 struct timing_phase_path path[MAX_PHASE + 1];
1419 int i, j, cont_path_cnt;
1420 int new_block, max_len;
1421 u8 final_phase = 0xFF;
1422 int final_path_idx;
1423
1424 if (phase_map == 0xffff) {
1425 if (CHK_SD_DDR50(sd_card)) {
1426 if (tune_dir == TUNE_TX)
1427 final_phase = chip->option.ddr50_tx_phase;
1428 else
1429 final_phase = chip->option.ddr50_rx_phase;
1430 RTS51X_DEBUGP("DDR50 tuning dir:%d all pass,"
1431 "so select default phase:0x%x.\n",
1432 tune_dir, final_phase);
1433 } else {
1434 if (tune_dir == TUNE_TX)
1435 final_phase = chip->option.sdr50_tx_phase;
1436 else
1437 final_phase = chip->option.sdr50_rx_phase;
1438 RTS51X_DEBUGP("SDR50 tuning dir:%d all pass,"
1439 "so select default phase:0x%x.\n",
1440 tune_dir, final_phase);
1441 }
1442 goto Search_Finish;
1443 }
1444
1445 cont_path_cnt = 0;
1446 new_block = 1;
1447 j = 0;
1448 for (i = 0; i < MAX_PHASE + 1; i++) {
1449 if (phase_map & (1 << i)) {
1450 if (new_block) {
1451 new_block = 0;
1452 j = cont_path_cnt++;
1453 path[j].start = i;
1454 path[j].end = i;
1455 } else {
1456 path[j].end = i;
1457 }
1458 } else {
1459 new_block = 1;
1460 if (cont_path_cnt) {
1461 int idx = cont_path_cnt - 1;
1462 path[idx].len =
1463 path[idx].end - path[idx].start + 1;
1464 path[idx].mid =
1465 path[idx].start + path[idx].len / 2;
1466 }
1467 }
1468 }
1469
1470 if (cont_path_cnt == 0) {
1471 RTS51X_DEBUGP("No continuous phase path\n");
1472 goto Search_Finish;
1473 } else {
1474 int idx = cont_path_cnt - 1;
1475 path[idx].len = path[idx].end - path[idx].start + 1;
1476 path[idx].mid = path[idx].start + path[idx].len / 2;
1477 }
1478
1479 if ((path[0].start == 0) &&
1480 (path[cont_path_cnt - 1].end == MAX_PHASE)) {
1481 path[0].start = path[cont_path_cnt - 1].start - MAX_PHASE - 1;
1482 path[0].len += path[cont_path_cnt - 1].len;
1483 path[0].mid = path[0].start + path[0].len / 2;
1484 if (path[0].mid < 0)
1485 path[0].mid += MAX_PHASE + 1;
1486 cont_path_cnt--;
1487 }
1488 max_len = 0;
1489 final_phase = 0;
1490 final_path_idx = 0;
1491 for (i = 0; i < cont_path_cnt; i++) {
1492 if (path[i].len > max_len) {
1493 max_len = path[i].len;
1494 final_phase = (u8) path[i].mid;
1495 final_path_idx = i;
1496 }
1497
1498 RTS51X_DEBUGP("path[%d].start = %d\n", i, path[i].start);
1499 RTS51X_DEBUGP("path[%d].end = %d\n", i, path[i].end);
1500 RTS51X_DEBUGP("path[%d].len = %d\n", i, path[i].len);
1501 RTS51X_DEBUGP("path[%d].mid = %d\n", i, path[i].mid);
1502 RTS51X_DEBUGP("\n");
1503 }
1504
1505 if ((tune_dir == TUNE_TX) && (CHK_SD_SDR50(sd_card))
1506 && chip->option.sdr50_phase_sel) {
1507 if (max_len > 6) {
1508 int temp_mid = (max_len - 6) / 2;
1509 int temp_final_phase =
1510 path[final_path_idx].end - (max_len -
1511 (3 + temp_mid));
1512
1513 if (temp_final_phase < 0)
1514 final_phase = temp_final_phase + MAX_PHASE + 1;
1515 else
1516 final_phase = (u8) temp_final_phase;
1517 }
1518 }
1519
1520 Search_Finish:
1521 RTS51X_DEBUGP("Final chosen phase: %d\n", final_phase);
1522 return final_phase;
1523 }
1524
1525 static int sd_tuning_rx(struct rts51x_chip *chip)
1526 {
1527 struct sd_info *sd_card = &(chip->sd_card);
1528 int retval;
1529 int i, j;
1530 u32 raw_phase_map[3], phase_map;
1531 u8 final_phase;
1532 int (*tuning_cmd) (struct rts51x_chip *chip, u8 sample_point);
1533
1534 if (CHK_SD(sd_card)) {
1535 if (CHK_SD_DDR50(sd_card))
1536 tuning_cmd = sd_ddr_tuning_rx_cmd;
1537 else
1538 tuning_cmd = sd_sdr_tuning_rx_cmd;
1539 } else {
1540 if (CHK_MMC_DDR52(sd_card))
1541 tuning_cmd = mmc_ddr_tunning_rx_cmd;
1542 else
1543 TRACE_RET(chip, STATUS_FAIL);
1544 }
1545
1546 for (i = 0; i < 3; i++) {
1547 raw_phase_map[i] = 0;
1548 for (j = MAX_PHASE; j >= 0; j--) {
1549 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
1550 sd_set_reset_fail(chip, SD_RESET_FAIL);
1551 TRACE_RET(chip, STATUS_FAIL);
1552 }
1553
1554 retval = tuning_cmd(chip, (u8) j);
1555 if (retval == STATUS_SUCCESS)
1556 raw_phase_map[i] |= 1 << j;
1557 else
1558 RTS51X_DEBUGP("Tuning phase %d fail\n", j);
1559 }
1560 }
1561
1562 phase_map = raw_phase_map[0] & raw_phase_map[1] & raw_phase_map[2];
1563 for (i = 0; i < 3; i++)
1564 RTS51X_DEBUGP("RX raw_phase_map[%d] = 0x%04x\n", i,
1565 raw_phase_map[i]);
1566 RTS51X_DEBUGP("RX phase_map = 0x%04x\n", phase_map);
1567
1568 final_phase = sd_search_final_phase(chip, phase_map, TUNE_RX);
1569 if (final_phase == 0xFF)
1570 TRACE_RET(chip, STATUS_FAIL);
1571
1572 retval = tuning_cmd(chip, final_phase);
1573 if (retval != STATUS_SUCCESS)
1574 TRACE_RET(chip, retval);
1575
1576 return STATUS_SUCCESS;
1577 }
1578
1579 static int sd_ddr_pre_tuning_tx(struct rts51x_chip *chip)
1580 {
1581 struct sd_info *sd_card = &(chip->sd_card);
1582 int retval;
1583 u8 i;
1584 u8 pre_tune_tx_phase;
1585 u32 pre_tune_phase_map;
1586
1587 RTS51X_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
1588 SD_RSP_80CLK_TIMEOUT_EN);
1589
1590 pre_tune_tx_phase = 0xFF;
1591 pre_tune_phase_map = 0x0000;
1592 for (i = 0; i < MAX_PHASE + 1; i++) {
1593 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
1594 sd_set_reset_fail(chip, SD_RESET_FAIL);
1595 TRACE_RET(chip, STATUS_FAIL);
1596 }
1597
1598 retval = sd_change_phase(chip, (u8) i, TUNE_TX);
1599 if (retval != STATUS_SUCCESS)
1600 TRACE_RET(chip, retval);
1601
1602 retval =
1603 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
1604 SD_RSP_TYPE_R1, NULL, 0);
1605 if ((retval == STATUS_SUCCESS)
1606 || !sd_check_err_code(chip, SD_RSP_TIMEOUT))
1607 pre_tune_phase_map |= (u32) 1 << i;
1608 }
1609
1610 RTS51X_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
1611
1612 pre_tune_tx_phase =
1613 sd_search_final_phase(chip, pre_tune_phase_map, TUNE_TX);
1614 if (pre_tune_tx_phase == 0xFF)
1615 TRACE_RET(chip, STATUS_FAIL);
1616
1617 sd_change_phase(chip, pre_tune_tx_phase, TUNE_TX);
1618 RTS51X_DEBUGP("DDR TX pre tune phase: %d\n", (int)pre_tune_tx_phase);
1619
1620 return STATUS_SUCCESS;
1621 }
1622
1623 static int sd_tuning_tx(struct rts51x_chip *chip)
1624 {
1625 struct sd_info *sd_card = &(chip->sd_card);
1626 int retval;
1627 int i, j;
1628 u32 raw_phase_map[3], phase_map;
1629 u8 final_phase;
1630 int (*tuning_cmd) (struct rts51x_chip *chip, u8 sample_point);
1631
1632 if (CHK_SD(sd_card)) {
1633 if (CHK_SD_DDR50(sd_card))
1634 tuning_cmd = sd_ddr_tuning_tx_cmd;
1635 else
1636 tuning_cmd = sd_sdr_tuning_tx_cmd;
1637 } else {
1638 if (CHK_MMC_DDR52(sd_card))
1639 tuning_cmd = sd_ddr_tuning_tx_cmd;
1640 else
1641 TRACE_RET(chip, STATUS_FAIL);
1642 }
1643
1644 for (i = 0; i < 3; i++) {
1645 raw_phase_map[i] = 0;
1646 for (j = MAX_PHASE; j >= 0; j--) {
1647 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
1648 sd_set_reset_fail(chip, SD_RESET_FAIL);
1649 TRACE_RET(chip, STATUS_FAIL);
1650 }
1651
1652 retval = tuning_cmd(chip, (u8) j);
1653 if (retval == STATUS_SUCCESS)
1654 raw_phase_map[i] |= 1 << j;
1655 else
1656 RTS51X_DEBUGP("Tuning phase %d fail\n", j);
1657 }
1658 }
1659
1660 phase_map = raw_phase_map[0] & raw_phase_map[1] & raw_phase_map[2];
1661 for (i = 0; i < 3; i++)
1662 RTS51X_DEBUGP("TX raw_phase_map[%d] = 0x%04x\n", i,
1663 raw_phase_map[i]);
1664 RTS51X_DEBUGP("TX phase_map = 0x%04x\n", phase_map);
1665
1666 final_phase = sd_search_final_phase(chip, phase_map, TUNE_TX);
1667 if (final_phase == 0xFF)
1668 TRACE_RET(chip, STATUS_FAIL);
1669
1670 retval = tuning_cmd(chip, final_phase);
1671 if (retval != STATUS_SUCCESS)
1672 TRACE_RET(chip, retval);
1673
1674 return STATUS_SUCCESS;
1675 }
1676
1677 static int sd_sdr_tuning(struct rts51x_chip *chip)
1678 {
1679 int retval;
1680
1681 retval = sd_tuning_tx(chip);
1682 if (retval != STATUS_SUCCESS)
1683 TRACE_RET(chip, retval);
1684
1685 retval = sd_tuning_rx(chip);
1686 if (retval != STATUS_SUCCESS)
1687 TRACE_RET(chip, retval);
1688
1689 return STATUS_SUCCESS;
1690 }
1691
1692 static int sd_ddr_tuning(struct rts51x_chip *chip)
1693 {
1694 int retval;
1695
1696 if (!(chip->option.sd_ctl & SD_DDR_TX_PHASE_SET_BY_USER)) {
1697 retval = sd_ddr_pre_tuning_tx(chip);
1698 if (retval != STATUS_SUCCESS)
1699 TRACE_RET(chip, retval);
1700 } else {
1701 retval =
1702 sd_change_phase(chip, (u8) chip->option.sd_ddr_tx_phase,
1703 TUNE_TX);
1704 if (retval != STATUS_SUCCESS)
1705 TRACE_RET(chip, retval);
1706 }
1707
1708 retval = sd_tuning_rx(chip);
1709 if (retval != STATUS_SUCCESS)
1710 TRACE_RET(chip, retval);
1711
1712 if (!(chip->option.sd_ctl & SD_DDR_TX_PHASE_SET_BY_USER)) {
1713 retval = sd_tuning_tx(chip);
1714 if (retval != STATUS_SUCCESS)
1715 TRACE_RET(chip, retval);
1716 }
1717
1718 return STATUS_SUCCESS;
1719 }
1720
1721 static int mmc_ddr_tuning(struct rts51x_chip *chip)
1722 {
1723 int retval;
1724
1725 if (!(chip->option.sd_ctl & MMC_DDR_TX_PHASE_SET_BY_USER)) {
1726 retval = sd_ddr_pre_tuning_tx(chip);
1727 if (retval != STATUS_SUCCESS)
1728 TRACE_RET(chip, retval);
1729 } else {
1730 retval =
1731 sd_change_phase(chip, (u8) chip->option.mmc_ddr_tx_phase,
1732 TUNE_TX);
1733 if (retval != STATUS_SUCCESS)
1734 TRACE_RET(chip, retval);
1735 }
1736
1737 retval = sd_tuning_rx(chip);
1738 if (retval != STATUS_SUCCESS)
1739 TRACE_RET(chip, retval);
1740
1741 if (!(chip->option.sd_ctl & MMC_DDR_TX_PHASE_SET_BY_USER)) {
1742 retval = sd_tuning_tx(chip);
1743 if (retval != STATUS_SUCCESS)
1744 TRACE_RET(chip, retval);
1745 }
1746
1747 return STATUS_SUCCESS;
1748 }
1749
1750 int rts51x_sd_switch_clock(struct rts51x_chip *chip)
1751 {
1752 struct sd_info *sd_card = &(chip->sd_card);
1753 int retval;
1754 int re_tuning = 0;
1755
1756 retval = rts51x_select_card(chip, SD_CARD);
1757 if (retval != STATUS_SUCCESS)
1758 TRACE_RET(chip, retval);
1759
1760 if (CHK_SD30_SPEED(sd_card) || CHK_MMC_DDR52(sd_card)) {
1761 if (sd_card->sd_clock != chip->cur_clk)
1762 re_tuning = 1;
1763 }
1764
1765 retval = switch_clock(chip, sd_card->sd_clock);
1766 if (retval != STATUS_SUCCESS)
1767 TRACE_RET(chip, retval);
1768
1769 if (re_tuning) {
1770 if (CHK_SD(sd_card)) {
1771 if (CHK_SD_DDR50(sd_card))
1772 retval = sd_ddr_tuning(chip);
1773 else
1774 retval = sd_sdr_tuning(chip);
1775 } else {
1776 if (CHK_MMC_DDR52(sd_card))
1777 retval = mmc_ddr_tuning(chip);
1778 }
1779
1780 if (retval != STATUS_SUCCESS)
1781 TRACE_RET(chip, retval);
1782 }
1783
1784 return STATUS_SUCCESS;
1785 }
1786
1787 static int sd_prepare_reset(struct rts51x_chip *chip)
1788 {
1789 struct sd_info *sd_card = &(chip->sd_card);
1790 int retval;
1791
1792 if (chip->asic_code)
1793 sd_card->sd_clock = 29;
1794 else
1795 sd_card->sd_clock = CLK_30;
1796
1797 /* Set SD Clocks */
1798 retval = sd_set_init_para(chip);
1799 if (retval != STATUS_SUCCESS)
1800 TRACE_RET(chip, retval);
1801
1802 rts51x_init_cmd(chip);
1803
1804 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0xFF,
1805 SD_CLK_DIVIDE_128 | SD_20_MODE | SD_BUS_WIDTH_1);
1806 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_SAMPLE_POINT_CTL, 0xFF,
1807 SD20_RX_POS_EDGE);
1808 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_PUSH_POINT_CTL, 0xFF, 0);
1809
1810 retval = rts51x_send_cmd(chip, MODE_C, 100);
1811 if (retval != STATUS_SUCCESS)
1812 TRACE_RET(chip, retval);
1813
1814 retval = rts51x_select_card(chip, SD_CARD);
1815 if (retval != STATUS_SUCCESS)
1816 TRACE_RET(chip, retval);
1817
1818 return STATUS_SUCCESS;
1819 }
1820
1821 static void sd_pull_ctl_disable(struct rts51x_chip *chip)
1822 {
1823 if (CHECK_PKG(chip, LQFP48)) {
1824 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL1, 0xFF, 0x55);
1825 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL2, 0xFF, 0x55);
1826 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL3, 0xFF, 0x95);
1827 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL4, 0xFF, 0x55);
1828 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL5, 0xFF, 0x55);
1829 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL6, 0xFF, 0xA5);
1830 } else {
1831 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL1, 0xFF, 0x65);
1832 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL2, 0xFF, 0x55);
1833 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL3, 0xFF, 0x95);
1834 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL4, 0xFF, 0x55);
1835 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL5, 0xFF, 0x56);
1836 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL6, 0xFF, 0x59);
1837 }
1838 }
1839
1840 static void sd_pull_ctl_enable(struct rts51x_chip *chip)
1841 {
1842 if (CHECK_PKG(chip, LQFP48)) {
1843 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL1, 0xFF, 0xAA);
1844 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL2, 0xFF, 0xAA);
1845 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL3, 0xFF, 0xA9);
1846 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL4, 0xFF, 0x55);
1847 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL5, 0xFF, 0x55);
1848 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL6, 0xFF, 0xA5);
1849 } else {
1850 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL1, 0xFF, 0xA5);
1851 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL2, 0xFF, 0x9A);
1852 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL3, 0xFF, 0xA5);
1853 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL4, 0xFF, 0x9A);
1854 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL5, 0xFF, 0x65);
1855 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PULL_CTL6, 0xFF, 0x5A);
1856 }
1857 }
1858
1859 static int sd_init_power(struct rts51x_chip *chip)
1860 {
1861 int retval;
1862
1863 rts51x_init_cmd(chip);
1864
1865 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, LDO3318_PWR_MASK,
1866 LDO_ON);
1867 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_PAD_CTL, SD_IO_USING_1V8,
1868 SD_IO_USING_3V3);
1869 if (chip->asic_code)
1870 rts51x_add_cmd(chip, WRITE_REG_CMD, LDO_POWER_CFG,
1871 TUNE_SD18_MASK, TUNE_SD18_3V3);
1872 if (chip->asic_code)
1873 sd_pull_ctl_disable(chip);
1874 else
1875 rts51x_add_cmd(chip, WRITE_REG_CMD, FPGA_PULL_CTL,
1876 FPGA_SD_PULL_CTL_BIT | 0x20,
1877 FPGA_SD_PULL_CTL_BIT);
1878 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_OE, SD_OUTPUT_EN, 0);
1879 if (!chip->option.FT2_fast_mode)
1880 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, POWER_MASK,
1881 POWER_OFF);
1882
1883 retval = rts51x_send_cmd(chip, MODE_C, 100);
1884 if (retval != STATUS_SUCCESS)
1885 TRACE_RET(chip, retval);
1886 if (!chip->option.FT2_fast_mode) {
1887 #ifdef SD_XD_IO_FOLLOW_PWR
1888 if (CHECK_PKG(chip, LQFP48)
1889 || chip->option.rts5129_D3318_off_enable)
1890 rts51x_write_register(chip, CARD_PWR_CTL,
1891 LDO_OFF, LDO_OFF);
1892 #endif
1893 wait_timeout(250);
1894
1895 #ifdef SD_XD_IO_FOLLOW_PWR
1896 if (CHECK_PKG(chip, LQFP48)
1897 || chip->option.rts5129_D3318_off_enable) {
1898 rts51x_init_cmd(chip);
1899 if (chip->asic_code)
1900 sd_pull_ctl_enable(chip);
1901 else
1902 rts51x_add_cmd(chip, WRITE_REG_CMD,
1903 FPGA_PULL_CTL,
1904 FPGA_SD_PULL_CTL_BIT | 0x20, 0);
1905 retval = rts51x_send_cmd(chip, MODE_C, 100);
1906 if (retval != STATUS_SUCCESS)
1907 TRACE_RET(chip, retval);
1908 } else {
1909 if (chip->asic_code)
1910 rts51x_write_register(chip, CARD_PULL_CTL6,
1911 0x03, 0x00);
1912 }
1913 #endif
1914
1915 /* Power on card */
1916 retval = rts51x_card_power_on(chip, SD_CARD);
1917 if (retval != STATUS_SUCCESS)
1918 TRACE_RET(chip, retval);
1919
1920 wait_timeout(260);
1921
1922 #ifdef SUPPORT_OCP
1923 rts51x_get_card_status(chip, &(chip->card_status));
1924 chip->ocp_stat = (chip->card_status >> 4) & 0x03;
1925
1926 if (chip->ocp_stat & (MS_OCP_NOW | MS_OCP_EVER)) {
1927 RTS51X_DEBUGP("Over current, OCPSTAT is 0x%x\n",
1928 chip->ocp_stat);
1929 TRACE_RET(chip, STATUS_FAIL);
1930 }
1931 #endif
1932 }
1933
1934 rts51x_init_cmd(chip);
1935 if (chip->asic_code) {
1936 sd_pull_ctl_enable(chip);
1937 } else {
1938 rts51x_add_cmd(chip, WRITE_REG_CMD, FPGA_PULL_CTL,
1939 FPGA_SD_PULL_CTL_BIT | 0x20, 0);
1940 }
1941 retval = rts51x_send_cmd(chip, MODE_C, 100);
1942 if (retval != STATUS_SUCCESS)
1943 TRACE_RET(chip, retval);
1944 #ifdef SD_XD_IO_FOLLOW_PWR
1945 rts51x_write_register(chip, CARD_INT_PEND, XD_INT | MS_INT | SD_INT,
1946 XD_INT | MS_INT | SD_INT);
1947 #endif
1948
1949 RTS51X_WRITE_REG(chip, CARD_OE, SD_OUTPUT_EN, SD_OUTPUT_EN);
1950
1951 return STATUS_SUCCESS;
1952 }
1953
1954 static int sd_dummy_clock(struct rts51x_chip *chip)
1955 {
1956 RTS51X_WRITE_REG(chip, SD_BUS_STAT, SD_CLK_TOGGLE_EN, SD_CLK_TOGGLE_EN);
1957 wait_timeout(5);
1958 RTS51X_WRITE_REG(chip, SD_BUS_STAT, SD_CLK_TOGGLE_EN, 0x00);
1959
1960 return STATUS_SUCCESS;
1961 }
1962
1963 int reset_sd(struct rts51x_chip *chip)
1964 {
1965 struct sd_info *sd_card = &(chip->sd_card);
1966 int retval, i = 0, j = 0, k = 0, hi_cap_flow = 0;
1967 int sd_dont_switch = 0;
1968 int support_1v8 = 0;
1969 u8 rsp[16];
1970 u8 switch_bus_width;
1971 u32 voltage = 0;
1972 u8 cmd[5], buf[64];
1973 u16 sd_card_type;
1974
1975 SET_SD(sd_card);
1976 CLR_RETRY_SD20_MODE(sd_card);
1977 Switch_Fail:
1978 i = 0;
1979 j = 0;
1980 k = 0;
1981 hi_cap_flow = 0;
1982 support_1v8 = 0;
1983
1984 retval = sd_prepare_reset(chip);
1985 if (retval != STATUS_SUCCESS)
1986 TRACE_RET(chip, retval);
1987
1988 sd_dummy_clock(chip);
1989
1990 /* Start Initialization Process of SD Card */
1991 RTY_SD_RST:
1992 retval =
1993 sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0, NULL,
1994 0);
1995 if (retval != STATUS_SUCCESS)
1996 TRACE_RET(chip, retval);
1997
1998 wait_timeout(20);
1999
2000 retval =
2001 sd_send_cmd_get_rsp(chip, SEND_IF_COND, 0x000001AA, SD_RSP_TYPE_R7,
2002 rsp, 5);
2003 if (retval == STATUS_SUCCESS) {
2004 if ((rsp[4] == 0xAA) && ((rsp[3] & 0x0f) == 0x01)) {
2005 hi_cap_flow = 1;
2006 if (CHK_RETRY_SD20_MODE(sd_card)) {
2007 voltage =
2008 SUPPORT_VOLTAGE |
2009 SUPPORT_HIGH_AND_EXTENDED_CAPACITY;
2010 } else {
2011 voltage =
2012 SUPPORT_VOLTAGE |
2013 SUPPORT_HIGH_AND_EXTENDED_CAPACITY |
2014 SUPPORT_MAX_POWER_PERMANCE | SUPPORT_1V8;
2015 }
2016 }
2017 }
2018
2019 if (!hi_cap_flow) {
2020 voltage = SUPPORT_VOLTAGE;
2021
2022 retval =
2023 sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0,
2024 NULL, 0);
2025 if (retval != STATUS_SUCCESS)
2026 TRACE_RET(chip, retval);
2027 wait_timeout(20);
2028 }
2029
2030 /* ACMD41 */
2031 do {
2032 {
2033 u8 temp = 0;
2034 rts51x_read_register(chip, CARD_INT_PEND, &temp);
2035 RTS51X_DEBUGP("CARD_INT_PEND:%x\n", temp);
2036 if (temp & SD_INT) {
2037 chip->reset_need_retry = 1;
2038 rts51x_write_register(chip, CARD_INT_PEND,
2039 XD_INT | SD_INT | MS_INT,
2040 XD_INT | SD_INT | MS_INT);
2041 sd_set_reset_fail(chip, SD_RESET_FAIL);
2042 TRACE_RET(chip, STATUS_FAIL);
2043 }
2044 }
2045
2046 RTY_CMD55:
2047 retval =
2048 sd_send_cmd_get_rsp(chip, APP_CMD, 0, SD_RSP_TYPE_R1, NULL,
2049 0);
2050 if (retval != STATUS_SUCCESS) {
2051 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
2052 sd_set_reset_fail(chip, SD_RESET_FAIL);
2053 TRACE_RET(chip, STATUS_FAIL);
2054 }
2055
2056 j++;
2057 if (chip->option.speed_mmc) {
2058 if (j < 2)
2059 goto RTY_CMD55;
2060 else
2061 TRACE_RET(chip, STATUS_FAIL);
2062 } else {
2063 if (j < 3)
2064 goto RTY_SD_RST;
2065 else
2066 TRACE_RET(chip, STATUS_FAIL);
2067 }
2068 }
2069
2070 retval =
2071 sd_send_cmd_get_rsp(chip, SD_APP_OP_COND, voltage,
2072 SD_RSP_TYPE_R3, rsp, 5);
2073 if (retval != STATUS_SUCCESS) {
2074 k++;
2075 if (k < 3)
2076 goto RTY_SD_RST;
2077 else
2078 TRACE_RET(chip, STATUS_FAIL);
2079 }
2080
2081 i++;
2082 wait_timeout(20);
2083 } while (!(rsp[1] & 0x80) && (i < 255)); /* Not complete power on */
2084
2085 if (i == 255) {
2086 /* Time out */
2087 TRACE_RET(chip, STATUS_FAIL);
2088 }
2089
2090 if (hi_cap_flow) {
2091 if (rsp[1] & 0x40)
2092 SET_SD_HCXC(sd_card);
2093 else
2094 CLR_SD_HCXC(sd_card);
2095 if (!CHK_RETRY_SD20_MODE(sd_card)) {
2096 if ((CHK_SD_HCXC(sd_card)) && (CHECK_UHS50(chip))) {
2097 support_1v8 = (rsp[1] & 0x01) ? 1 : 0;
2098 RTS51X_DEBUGP("support_1v8 = %d\n",
2099 support_1v8);
2100 }
2101 }
2102 } else {
2103 CLR_SD_HCXC(sd_card);
2104 support_1v8 = 0;
2105 }
2106
2107 /* CMD11: Switch Voltage */
2108 if (support_1v8 && CHECK_UHS50(chip)
2109 && !(((u8) chip->option.sd_speed_prior & SDR104_SUPPORT) ==
2110 HS_SUPPORT)) {
2111 retval = sd_voltage_switch(chip);
2112 if (retval != STATUS_SUCCESS) {
2113 SET_RETRY_SD20_MODE(sd_card);
2114 sd_init_power(chip);
2115 RTS51X_DEBUGP("1.8v switch fail\n");
2116 goto Switch_Fail;
2117 }
2118 }
2119
2120 /* CMD 2 */
2121 retval =
2122 sd_send_cmd_get_rsp(chip, ALL_SEND_CID, 0, SD_RSP_TYPE_R2, NULL, 0);
2123 if (retval != STATUS_SUCCESS)
2124 TRACE_RET(chip, retval);
2125
2126 /* CMD 3 */
2127 retval =
2128 sd_send_cmd_get_rsp(chip, SEND_RELATIVE_ADDR, 0, SD_RSP_TYPE_R6,
2129 rsp, 5);
2130 if (retval != STATUS_SUCCESS)
2131 TRACE_RET(chip, retval);
2132
2133 sd_card->sd_addr = (u32) rsp[1] << 24;
2134 sd_card->sd_addr += (u32) rsp[2] << 16;
2135
2136 /* Get CSD register for Calculating Timing,Capacity,
2137 * Check CSD to determine as if this is the SD ROM card */
2138 retval = sd_check_csd(chip, 1);
2139 if (retval != STATUS_SUCCESS)
2140 TRACE_RET(chip, retval);
2141 /* Select SD card */
2142 retval = rts51x_sd_select_card(chip, 1);
2143 if (retval != STATUS_SUCCESS)
2144 TRACE_RET(chip, retval);
2145
2146 /* ACMD42 */
2147 retval =
2148 sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1,
2149 NULL, 0);
2150 if (retval != STATUS_SUCCESS)
2151 TRACE_RET(chip, retval);
2152
2153 retval =
2154 sd_send_cmd_get_rsp(chip, SET_CLR_CARD_DETECT, 0, SD_RSP_TYPE_R1,
2155 NULL, 0);
2156 if (retval != STATUS_SUCCESS)
2157 TRACE_RET(chip, retval);
2158
2159 if (support_1v8) {
2160 /* ACMD6 */
2161 retval =
2162 sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
2163 SD_RSP_TYPE_R1, NULL, 0);
2164 if (retval != STATUS_SUCCESS)
2165 TRACE_RET(chip, retval);
2166 /* Enable 4 bit data bus */
2167 retval =
2168 sd_send_cmd_get_rsp(chip, SET_BUS_WIDTH, 2, SD_RSP_TYPE_R1,
2169 NULL, 0);
2170 if (retval != STATUS_SUCCESS)
2171 TRACE_RET(chip, retval);
2172 switch_bus_width = SD_BUS_WIDTH_4;
2173 } else {
2174 switch_bus_width = SD_BUS_WIDTH_1;
2175 }
2176
2177 /* Set block length 512 bytes for all block commands */
2178 retval = sd_send_cmd_get_rsp(chip, SET_BLOCKLEN,
2179 0x200, SD_RSP_TYPE_R1, NULL, 0);
2180 if (retval != STATUS_SUCCESS)
2181 TRACE_RET(chip, retval);
2182
2183 RTS51X_WRITE_REG(chip, SD_CFG1, SD_CLK_DIVIDE_MASK, SD_CLK_DIVIDE_0);
2184
2185 if (!(sd_card->raw_csd[4] & 0x40)) {
2186 sd_dont_switch = 1;
2187 RTS51X_DEBUGP("Not support class ten\n");
2188 }
2189
2190 if (!sd_dont_switch) {
2191 /* Check the card whether flow SD1.1 spec or higher */
2192 retval = sd_check_spec(chip, switch_bus_width);
2193 if (retval == STATUS_SUCCESS) {
2194 retval = sd_switch_function(chip, switch_bus_width);
2195 if (retval != STATUS_SUCCESS) {
2196 if ((sd_card->sd_switch_fail ==
2197 SDR104_SUPPORT_MASK)
2198 || (sd_card->sd_switch_fail ==
2199 DDR50_SUPPORT_MASK)
2200 || (sd_card->sd_switch_fail ==
2201 SDR50_SUPPORT_MASK)) {
2202 sd_init_power(chip);
2203 SET_RETRY_SD20_MODE(sd_card);
2204 } else if (sd_card->sd_switch_fail ==
2205 HS_SUPPORT_MASK) {
2206 sd_dont_switch = 1;
2207 }
2208 goto Switch_Fail;
2209 }
2210 } else {
2211 if (support_1v8) {
2212 SET_RETRY_SD20_MODE(sd_card);
2213 sd_init_power(chip);
2214 sd_dont_switch = 1;
2215
2216 goto Switch_Fail;
2217 }
2218 }
2219 }
2220
2221 if (!support_1v8) {
2222 /* ACMD6 */
2223 retval =
2224 sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
2225 SD_RSP_TYPE_R1, NULL, 0);
2226 if (retval != STATUS_SUCCESS)
2227 TRACE_RET(chip, retval);
2228 /* Enable 4 bit data bus */
2229 retval =
2230 sd_send_cmd_get_rsp(chip, SET_BUS_WIDTH, 2, SD_RSP_TYPE_R1,
2231 NULL, 0);
2232 if (retval != STATUS_SUCCESS)
2233 TRACE_RET(chip, retval);
2234 }
2235
2236 if (CHK_SD30_SPEED(sd_card)) {
2237 rts51x_write_register(chip, SD30_DRIVE_SEL, SD30_DRIVE_MASK,
2238 0x03);
2239
2240 retval = sd_set_init_para(chip);
2241 if (retval != STATUS_SUCCESS)
2242 TRACE_RET(chip, retval);
2243
2244 if (CHK_SD_DDR50(sd_card))
2245 retval = sd_ddr_tuning(chip);
2246 else
2247 retval = sd_sdr_tuning(chip);
2248
2249 if (retval != STATUS_SUCCESS) {
2250 SET_RETRY_SD20_MODE(sd_card);
2251 RTS51X_DEBUGP("tuning phase fail,goto SD20 mode\n");
2252 sd_init_power(chip);
2253 CLR_SD30_SPEED(sd_card);
2254 goto Switch_Fail;
2255 }
2256 if (STATUS_SUCCESS ==
2257 sd_wait_currentstate_dataready(chip, 0x08, 1, 20)) {
2258 cmd[0] = 0x40 | READ_SINGLE_BLOCK;
2259 cmd[1] = 0x00;
2260 cmd[2] = 0x00;
2261 cmd[3] = 0x00;
2262 cmd[4] = 0x00;
2263 retval =
2264 sd_read_data(chip, SD_TM_NORMAL_READ, cmd, 5, 512,
2265 1, SD_BUS_WIDTH_4, NULL, 0, 600);
2266 if (retval != STATUS_SUCCESS) {
2267 SET_RETRY_SD20_MODE(sd_card);
2268 RTS51X_DEBUGP("read lba0 fail,"
2269 "goto SD20 mode\n");
2270 sd_init_power(chip);
2271 CLR_SD30_SPEED(sd_card);
2272 goto Switch_Fail;
2273 }
2274 }
2275 }
2276 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr, SD_RSP_TYPE_R1,
2277 NULL, 0);
2278
2279 retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
2280 SD_RSP_TYPE_R1, NULL, 0);
2281 if (retval == STATUS_SUCCESS) {
2282 int ret;
2283 cmd[0] = 0x40 | SEND_STATUS;
2284 cmd[1] = 0x00;
2285 cmd[2] = 0x00;
2286 cmd[3] = 0x00;
2287 cmd[4] = 0x00;
2288 ret =
2289 sd_read_data(chip, SD_TM_NORMAL_READ, cmd, 5, 64, 1,
2290 SD_BUS_WIDTH_4, buf, 64, 600);
2291 if (ret == STATUS_SUCCESS) {
2292 sd_card_type = ((u16) buf[2] << 8) | (u16) buf[3];
2293 RTS51X_DEBUGP("sd_card_type:0x%4x\n", sd_card_type);
2294 if ((sd_card_type == 0x0001)
2295 || (sd_card_type == 0x0002))
2296 chip->card_wp |= SD_CARD;
2297 } else {
2298 rts51x_clear_sd_error(chip);
2299 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
2300 SD_RSP_TYPE_R1, NULL, 0);
2301 }
2302 } else {
2303 rts51x_clear_sd_error(chip);
2304 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
2305 SD_RSP_TYPE_R1, NULL, 0);
2306 }
2307
2308 /* Check SD Machanical Write-Protect Switch */
2309 retval = rts51x_get_card_status(chip, &(chip->card_status));
2310 if (retval != STATUS_SUCCESS)
2311 TRACE_RET(chip, retval);
2312 if (chip->card_status & SD_WP)
2313 chip->card_wp |= SD_CARD;
2314
2315 chip->card_bus_width[chip->card2lun[SD_CARD]] = 4;
2316
2317 return STATUS_SUCCESS;
2318 }
2319
2320 static int mmc_test_switch_bus(struct rts51x_chip *chip, u8 width)
2321 {
2322 struct sd_info *sd_card = &(chip->sd_card);
2323 int retval;
2324 u8 buf[8] = { 0 }, bus_width;
2325 u16 byte_cnt;
2326 int len;
2327
2328 retval =
2329 sd_send_cmd_get_rsp(chip, BUSTEST_W, 0, SD_RSP_TYPE_R1, NULL, 0);
2330 if (retval != STATUS_SUCCESS)
2331 TRACE_RET(chip, retval);
2332
2333 if (width == MMC_8BIT_BUS) {
2334 buf[0] = 0x55;
2335 buf[1] = 0xAA;
2336 len = 8;
2337 byte_cnt = 8;
2338 bus_width = SD_BUS_WIDTH_8;
2339 } else {
2340 buf[0] = 0x5A;
2341 len = 4;
2342 byte_cnt = 4;
2343 bus_width = SD_BUS_WIDTH_4;
2344 }
2345
2346 retval = sd_write_data(chip, SD_TM_AUTO_WRITE_3,
2347 NULL, 0, byte_cnt, 1, bus_width, buf, len, 100);
2348 if (retval != STATUS_SUCCESS) {
2349 u8 val1 = 0, val2 = 0;
2350 rts51x_ep0_read_register(chip, SD_STAT1, &val1);
2351 rts51x_ep0_read_register(chip, SD_STAT2, &val2);
2352 rts51x_clear_sd_error(chip);
2353 if ((val1 & 0xE0) || val2)
2354 TRACE_RET(chip, STATUS_FAIL);
2355 }
2356 RTS51X_DEBUGP("SD/MMC CMD %d\n", BUSTEST_R);
2357
2358 rts51x_init_cmd(chip);
2359
2360 /* CMD14 */
2361 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0, 0xFF, 0x40 | BUSTEST_R);
2362
2363 if (width == MMC_8BIT_BUS)
2364 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0x08);
2365 else
2366 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0x04);
2367
2368 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, 1);
2369 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF, 0);
2370
2371 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
2372 SD_CALCULATE_CRC7 | SD_NO_CHECK_CRC16 |
2373 SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 | SD_RSP_LEN_6);
2374 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01,
2375 PINGPONG_BUFFER);
2376 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
2377 SD_TM_NORMAL_READ | SD_TRANSFER_START);
2378 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER, SD_TRANSFER_END,
2379 SD_TRANSFER_END);
2380
2381 rts51x_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2, 0, 0);
2382 if (width == MMC_8BIT_BUS) {
2383 len = 3;
2384 rts51x_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 1, 0, 0);
2385 } else {
2386 len = 2;
2387 }
2388
2389 retval = rts51x_send_cmd(chip, MODE_CR, 100);
2390 if (retval != STATUS_SUCCESS)
2391 TRACE_RET(chip, retval);
2392
2393 retval = rts51x_get_rsp(chip, len, 100);
2394 if (CHECK_SD_TRANS_FAIL(chip, retval)) {
2395 rts51x_clear_sd_error(chip);
2396 TRACE_RET(chip, STATUS_FAIL);
2397 }
2398
2399 rts51x_read_rsp_buf(chip, 1, buf, 2);
2400
2401 if (width == MMC_8BIT_BUS) {
2402 RTS51X_DEBUGP("BUSTEST_R [8bits]: 0x%02x 0x%02x\n",
2403 buf[0], buf[1]);
2404 if ((buf[0] == 0xAA) && (buf[1] == 0x55)) {
2405 u8 rsp[5];
2406 u32 arg;
2407
2408 if (CHK_MMC_DDR52(sd_card))
2409 arg = 0x03B70600;
2410 else
2411 arg = 0x03B70200;
2412 /* Switch MMC to 8-bit mode */
2413 retval =
2414 sd_send_cmd_get_rsp(chip, SWITCH, arg,
2415 SD_RSP_TYPE_R1b, rsp, 5);
2416 if ((retval == STATUS_SUCCESS)
2417 && !(rsp[4] & MMC_SWITCH_ERR))
2418 return STATUS_SUCCESS;
2419 }
2420 } else {
2421 RTS51X_DEBUGP("BUSTEST_R [4bits]: 0x%02x\n", buf[0]);
2422 if (buf[0] == 0xA5) {
2423 u8 rsp[5];
2424 u32 arg;
2425
2426 if (CHK_MMC_DDR52(sd_card))
2427 arg = 0x03B70500;
2428 else
2429 arg = 0x03B70100;
2430 /* Switch MMC to 4-bit mode */
2431 retval =
2432 sd_send_cmd_get_rsp(chip, SWITCH, arg,
2433 SD_RSP_TYPE_R1b, rsp, 5);
2434 if ((retval == STATUS_SUCCESS)
2435 && !(rsp[4] & MMC_SWITCH_ERR))
2436 return STATUS_SUCCESS;
2437 }
2438 }
2439
2440 TRACE_RET(chip, STATUS_FAIL);
2441 }
2442
2443 static int mmc_switch_timing_bus(struct rts51x_chip *chip)
2444 {
2445 struct sd_info *sd_card = &(chip->sd_card);
2446 int retval;
2447 u8 card_type, card_type_mask = 0;
2448 u8 buf[6];
2449
2450 CLR_MMC_HS(sd_card);
2451
2452 RTS51X_DEBUGP("SD/MMC CMD %d\n", SEND_EXT_CSD);
2453
2454 rts51x_init_cmd(chip);
2455
2456 /* SEND_EXT_CSD command */
2457 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0, 0xFF,
2458 0x40 | SEND_EXT_CSD);
2459 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD1, 0xFF, 0);
2460 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD2, 0xFF, 0);
2461 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD3, 0xFF, 0);
2462 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD4, 0xFF, 0);
2463
2464 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0);
2465 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF, 2);
2466 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, 1);
2467 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF, 0);
2468
2469 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
2470 SD_CALCULATE_CRC7 | SD_CHECK_CRC16 | SD_NO_WAIT_BUSY_END
2471 | SD_CHECK_CRC7 | SD_RSP_LEN_6);
2472 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01,
2473 PINGPONG_BUFFER);
2474 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
2475 SD_TM_NORMAL_READ | SD_TRANSFER_START);
2476 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER, SD_TRANSFER_END,
2477 SD_TRANSFER_END);
2478
2479 rts51x_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 196, 0xFF, 0);
2480 rts51x_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 212, 0xFF, 0);
2481 rts51x_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 213, 0xFF, 0);
2482 rts51x_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 214, 0xFF, 0);
2483 rts51x_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 215, 0xFF, 0);
2484
2485 retval = rts51x_send_cmd(chip, MODE_CR, 100);
2486 if (retval != STATUS_SUCCESS)
2487 TRACE_RET(chip, retval);
2488
2489 retval = rts51x_get_rsp(chip, 6, 1000);
2490
2491 if (CHECK_SD_TRANS_FAIL(chip, retval)) {
2492 if (retval == STATUS_TIMEDOUT) {
2493 rts51x_clear_sd_error(chip);
2494 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
2495 SD_RSP_TYPE_R1, NULL, 0);
2496 }
2497 TRACE_RET(chip, STATUS_FAIL);
2498 }
2499
2500 rts51x_read_rsp_buf(chip, 0, buf, 6);
2501
2502 if (buf[0] & SD_TRANSFER_ERR) {
2503 sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
2504 SD_RSP_TYPE_R1, NULL, 0);
2505 TRACE_RET(chip, STATUS_FAIL);
2506 }
2507 if (CHK_MMC_SECTOR_MODE(sd_card))
2508 sd_card->capacity =
2509 ((u32) buf[5] << 24) | ((u32) buf[4] << 16) |
2510 ((u32) buf[3] << 8) | ((u32) buf[2]);
2511 if (CHECK_UHS50(chip))
2512 card_type_mask = 0x07;
2513 else
2514 card_type_mask = 0x03;
2515
2516 card_type = buf[1] & card_type_mask;
2517 if (card_type) {
2518 /* CARD TYPE FIELD = DDR52MHz, 52MHz or 26MHz */
2519 u8 rsp[5];
2520
2521 if (card_type & 0x04)
2522 SET_MMC_DDR52(sd_card);
2523 else if (card_type & 0x02)
2524 SET_MMC_52M(sd_card);
2525 else
2526 SET_MMC_26M(sd_card);
2527
2528 retval =
2529 sd_send_cmd_get_rsp(chip, SWITCH, 0x03B90100,
2530 SD_RSP_TYPE_R1b, rsp, 5);
2531 if ((retval != STATUS_SUCCESS) || (rsp[4] & MMC_SWITCH_ERR))
2532 CLR_MMC_HS(sd_card);
2533 }
2534 sd_choose_proper_clock(chip);
2535 retval = switch_clock(chip, sd_card->sd_clock);
2536 if (retval != STATUS_SUCCESS)
2537 TRACE_RET(chip, retval);
2538
2539 /* Test Bus Procedure */
2540 if (mmc_test_switch_bus(chip, MMC_8BIT_BUS) == STATUS_SUCCESS) {
2541 SET_MMC_8BIT(sd_card);
2542 chip->card_bus_width[chip->card2lun[SD_CARD]] = 8;
2543 } else if (mmc_test_switch_bus(chip, MMC_4BIT_BUS) == STATUS_SUCCESS) {
2544 SET_MMC_4BIT(sd_card);
2545 chip->card_bus_width[chip->card2lun[SD_CARD]] = 4;
2546 } else {
2547 CLR_MMC_8BIT(sd_card);
2548 CLR_MMC_4BIT(sd_card);
2549 }
2550
2551 return STATUS_SUCCESS;
2552 }
2553
2554 static int reset_mmc(struct rts51x_chip *chip)
2555 {
2556 struct sd_info *sd_card = &(chip->sd_card);
2557 int retval, i = 0, j = 0, k = 0;
2558 u8 rsp[16];
2559 u8 spec_ver = 0;
2560 u8 change_to_ddr52 = 1;
2561 u8 cmd[5];
2562
2563 MMC_DDR_FAIL:
2564
2565 retval = sd_prepare_reset(chip);
2566 if (retval != STATUS_SUCCESS)
2567 TRACE_RET(chip, retval);
2568
2569 SET_MMC(sd_card);
2570
2571 RTY_MMC_RST:
2572 retval =
2573 sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0, NULL,
2574 0);
2575 if (retval != STATUS_SUCCESS)
2576 TRACE_RET(chip, retval);
2577
2578 do {
2579 {
2580 u8 temp = 0;
2581 rts51x_read_register(chip, CARD_INT_PEND, &temp);
2582 if (temp & SD_INT) {
2583 chip->reset_need_retry = 1;
2584 rts51x_write_register(chip, CARD_INT_PEND,
2585 XD_INT | SD_INT | MS_INT,
2586 XD_INT | SD_INT | MS_INT);
2587 sd_set_reset_fail(chip, MMC_RESET_FAIL);
2588 TRACE_RET(chip, STATUS_FAIL);
2589 }
2590 }
2591
2592 /* CMD 1 */
2593 retval = sd_send_cmd_get_rsp(chip, SEND_OP_COND,
2594 (SUPPORT_VOLTAGE | 0x40000000),
2595 SD_RSP_TYPE_R3, rsp, 5);
2596 if (retval != STATUS_SUCCESS) {
2597 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
2598 sd_set_reset_fail(chip, MMC_RESET_FAIL);
2599 TRACE_RET(chip, STATUS_FAIL);
2600 }
2601
2602 if (sd_check_err_code(chip, SD_BUSY)
2603 || sd_check_err_code(chip, SD_TO_ERR)) {
2604 k++;
2605 if (k < 20) {
2606 sd_clr_err_code(chip);
2607 goto RTY_MMC_RST;
2608 } else {
2609 TRACE_RET(chip, STATUS_FAIL);
2610 }
2611 } else {
2612 j++;
2613 if (j < 100) {
2614 sd_clr_err_code(chip);
2615 goto RTY_MMC_RST;
2616 } else {
2617 TRACE_RET(chip, STATUS_FAIL);
2618 }
2619 }
2620 }
2621
2622 wait_timeout(20);
2623 i++;
2624 } while (!(rsp[1] & 0x80) && (i < 100)); /* Not complete power on */
2625
2626 if (i == 100) {
2627 /* Time out */
2628 TRACE_RET(chip, STATUS_FAIL);
2629 }
2630
2631 if ((rsp[1] & 0x60) == 0x40)
2632 SET_MMC_SECTOR_MODE(sd_card);
2633 else
2634 CLR_MMC_SECTOR_MODE(sd_card);
2635
2636 /* CMD 2 */
2637 retval =
2638 sd_send_cmd_get_rsp(chip, ALL_SEND_CID, 0, SD_RSP_TYPE_R2, NULL, 0);
2639 if (retval != STATUS_SUCCESS)
2640 TRACE_RET(chip, retval);
2641
2642 /* CMD 3 */
2643 sd_card->sd_addr = 0x00100000;
2644 retval =
2645 sd_send_cmd_get_rsp(chip, SET_RELATIVE_ADDR, sd_card->sd_addr,
2646 SD_RSP_TYPE_R6, rsp, 5);
2647 if (retval != STATUS_SUCCESS)
2648 TRACE_RET(chip, retval);
2649
2650 /* Get CSD register for Calculating Timing,Capacity
2651 * Check CSD to determine as if this is the SD ROM card */
2652 retval = sd_check_csd(chip, 1);
2653 if (retval != STATUS_SUCCESS)
2654 TRACE_RET(chip, retval);
2655 /* Get MMC Spec_Ver in the CSD register */
2656 spec_ver = (sd_card->raw_csd[0] & 0x3C) >> 2;
2657
2658 /* Select MMC card */
2659 retval = rts51x_sd_select_card(chip, 1);
2660 if (retval != STATUS_SUCCESS)
2661 TRACE_RET(chip, retval);
2662
2663 /* Set block length 512 bytes for all block commands */
2664 retval =
2665 sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200, SD_RSP_TYPE_R1, NULL,
2666 0);
2667 if (retval != STATUS_SUCCESS)
2668 TRACE_RET(chip, retval);
2669
2670 RTS51X_WRITE_REG(chip, SD_CFG1, SD_CLK_DIVIDE_MASK, SD_CLK_DIVIDE_0);
2671
2672 if (chip->ic_version < 2)
2673 rts51x_write_register(chip, SD30_DRIVE_SEL, SD30_DRIVE_MASK,
2674 0x02);
2675 rts51x_write_register(chip, CARD_DRIVE_SEL, SD20_DRIVE_MASK, DRIVE_8mA);
2676
2677 chip->card_bus_width[chip->card2lun[SD_CARD]] = 1;
2678 if (spec_ver == 4) {
2679 /* MMC 4.x Cards */
2680 (void)mmc_switch_timing_bus(chip);
2681 }
2682
2683 if (CHK_MMC_SECTOR_MODE(sd_card) && (sd_card->capacity == 0))
2684 TRACE_RET(chip, STATUS_FAIL);
2685
2686 if (CHK_MMC_DDR52(sd_card) && change_to_ddr52) {
2687 /* Card is extracted while identifying */
2688 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST)
2689 TRACE_RET(chip, STATUS_FAIL);
2690
2691 retval = sd_set_init_para(chip);
2692 if (retval != STATUS_SUCCESS) {
2693 CLR_MMC_DDR52(sd_card);
2694 sd_init_power(chip);
2695 change_to_ddr52 = 0;
2696 goto MMC_DDR_FAIL;
2697 }
2698
2699 retval = mmc_ddr_tuning(chip);
2700 if (retval != STATUS_SUCCESS) {
2701 CLR_MMC_DDR52(sd_card);
2702 sd_init_power(chip);
2703 change_to_ddr52 = 0;
2704 goto MMC_DDR_FAIL;
2705 }
2706
2707 if (STATUS_SUCCESS ==
2708 sd_wait_currentstate_dataready(chip, 0x08, 1, 20)) {
2709 cmd[0] = 0x40 | READ_SINGLE_BLOCK;
2710 cmd[1] = 0x00;
2711 cmd[2] = 0x00;
2712 cmd[3] = 0x00;
2713 cmd[4] = 0x00;
2714 if (CHK_MMC_8BIT(sd_card)) {
2715 retval =
2716 sd_read_data(chip, SD_TM_NORMAL_READ, cmd,
2717 5, 512, 1, SD_BUS_WIDTH_8,
2718 NULL, 0, 600);
2719 } else if (CHK_MMC_4BIT(sd_card)) {
2720 retval =
2721 sd_read_data(chip, SD_TM_NORMAL_READ, cmd,
2722 5, 512, 1, SD_BUS_WIDTH_4,
2723 NULL, 0, 600);
2724 } else {
2725 retval =
2726 sd_read_data(chip, SD_TM_NORMAL_READ, cmd,
2727 5, 512, 1, SD_BUS_WIDTH_1,
2728 NULL, 0, 600);
2729 }
2730
2731 if (retval != STATUS_SUCCESS) {
2732 CLR_MMC_DDR52(sd_card);
2733 change_to_ddr52 = 0;
2734 RTS51X_DEBUGP("read lba0 fail,"
2735 "goto SD20 mode\n");
2736 sd_init_power(chip);
2737 goto MMC_DDR_FAIL;
2738 }
2739 }
2740 }
2741
2742 retval = rts51x_get_card_status(chip, &(chip->card_status));
2743 if (retval != STATUS_SUCCESS)
2744 TRACE_RET(chip, retval);
2745 if (chip->card_status & SD_WP)
2746 chip->card_wp |= SD_CARD;
2747
2748 return STATUS_SUCCESS;
2749 }
2750
2751 int rts51x_reset_sd_card(struct rts51x_chip *chip)
2752 {
2753 struct sd_info *sd_card = &(chip->sd_card);
2754 int retval;
2755 int i;
2756
2757 memset(sd_card, 0, sizeof(struct sd_info));
2758
2759 /* Init variables */
2760 sd_card->sd_type = 0;
2761 sd_card->seq_mode = 0;
2762 sd_card->sd_data_buf_ready = 0;
2763 sd_card->capacity = 0;
2764 sd_card->sd_switch_fail = 0;
2765
2766 sd_clear_reset_fail(chip);
2767 rts51x_enable_card_clock(chip, SD_CARD);
2768
2769 sd_init_power(chip);
2770
2771 chip->reset_need_retry = 0;
2772 for (i = 0; i < 3; i++) {
2773 if (!chip->option.reset_mmc_first) { /* reset sd first */
2774 retval = reset_sd(chip);
2775 if (retval != STATUS_SUCCESS) {
2776 /* Switch SD bus to 3V3 signal */
2777 RTS51X_WRITE_REG(chip, SD_PAD_CTL,
2778 SD_IO_USING_1V8, 0);
2779 if (sd_check_reset_fail(chip, SD_RESET_FAIL))
2780 sd_clear_reset_fail(chip);
2781 else
2782 retval = reset_mmc(chip);
2783 }
2784 } else { /* reset MMC first */
2785 retval = reset_mmc(chip);
2786 if (retval != STATUS_SUCCESS) {
2787 if (sd_check_reset_fail(chip, MMC_RESET_FAIL)) {
2788 sd_clear_reset_fail(chip);
2789 } else {
2790 retval = reset_sd(chip);
2791 if (retval != STATUS_SUCCESS) {
2792 /* Switch SD bus to
2793 * 3V3 signal */
2794 RTS51X_WRITE_REG(chip,
2795 SD_PAD_CTL,
2796 SD_IO_USING_1V8, 0);
2797 }
2798 }
2799 }
2800 }
2801
2802 if ((retval == STATUS_SUCCESS) || (!chip->reset_need_retry)) {
2803 /* if reset success or don't need retry,then break */
2804 break;
2805 }
2806 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST) {
2807 /* card is extracted */
2808 break;
2809 }
2810 RTS51X_DEBUGP("retry reset sd card,%d\n", i);
2811 chip->reset_need_retry = 0;
2812 }
2813
2814 sd_clear_reset_fail(chip);
2815 chip->reset_need_retry = 0;
2816
2817 if (retval == STATUS_SUCCESS) {
2818 rts51x_init_cmd(chip);
2819 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, SD_CLK_DIVIDE_MASK,
2820 SD_CLK_DIVIDE_0);
2821 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0);
2822 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF, 2);
2823 retval = rts51x_send_cmd(chip, MODE_C, 100);
2824 if (retval != STATUS_SUCCESS)
2825 TRACE_RET(chip, retval);
2826 } else {
2827 chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity = 0;
2828 if (chip->option.reset_or_rw_fail_set_pad_drive) {
2829 rts51x_write_register(chip, CARD_DRIVE_SEL,
2830 SD20_DRIVE_MASK, DRIVE_8mA);
2831 }
2832 TRACE_RET(chip, STATUS_FAIL);
2833 }
2834
2835 chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity;
2836
2837 if (chip->option.sd_send_status_en) {
2838 sd_card->sd_send_status_en = 1;
2839 } else {
2840 if (sd_card->capacity > 0x20000) { /* 64MB */
2841 sd_card->sd_send_status_en = 0;
2842 } else {
2843 sd_card->sd_send_status_en = 1;
2844 }
2845 }
2846 RTS51X_DEBUGP("sd_card->sd_send_status = %d\n",
2847 sd_card->sd_send_status_en);
2848
2849 retval = sd_set_init_para(chip);
2850 if (retval != STATUS_SUCCESS)
2851 TRACE_RET(chip, retval);
2852
2853 RTS51X_DEBUGP("sd_card->sd_type = 0x%x\n", sd_card->sd_type);
2854
2855 return STATUS_SUCCESS;
2856 }
2857
2858 #define WAIT_DATA_READY_RTY_CNT 255
2859
2860 static int wait_data_buf_ready(struct rts51x_chip *chip)
2861 {
2862 struct sd_info *sd_card = &(chip->sd_card);
2863 int i, retval;
2864
2865 for (i = 0; i < WAIT_DATA_READY_RTY_CNT; i++) {
2866 if (monitor_card_cd(chip, SD_CARD) == CD_NOT_EXIST)
2867 TRACE_RET(chip, STATUS_FAIL);
2868
2869 sd_card->sd_data_buf_ready = 0;
2870
2871 retval = sd_send_cmd_get_rsp(chip, SEND_STATUS,
2872 sd_card->sd_addr, SD_RSP_TYPE_R1,
2873 NULL, 0);
2874 if (retval != STATUS_SUCCESS)
2875 TRACE_RET(chip, retval);
2876
2877 if (sd_card->sd_data_buf_ready)
2878 return sd_send_cmd_get_rsp(chip, SEND_STATUS,
2879 sd_card->sd_addr,
2880 SD_RSP_TYPE_R1, NULL, 0);
2881 }
2882
2883 sd_set_err_code(chip, SD_TO_ERR);
2884
2885 TRACE_RET(chip, STATUS_FAIL);
2886 }
2887
2888 static void sd_stop_seq_mode(struct rts51x_chip *chip)
2889 {
2890 struct sd_info *sd_card = &(chip->sd_card);
2891 int retval;
2892
2893 if (sd_card->seq_mode) {
2894 retval = rts51x_sd_switch_clock(chip);
2895 if (retval != STATUS_SUCCESS)
2896 return;
2897
2898 retval = sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION, 0,
2899 SD_RSP_TYPE_R1b, NULL, 0);
2900 if (retval != STATUS_SUCCESS)
2901 sd_set_err_code(chip, SD_STS_ERR);
2902 sd_card->seq_mode = 0;
2903
2904 rts51x_ep0_write_register(chip, MC_FIFO_CTL, FIFO_FLUSH,
2905 FIFO_FLUSH);
2906 }
2907 }
2908
2909 static inline int sd_auto_tune_clock(struct rts51x_chip *chip)
2910 {
2911 struct sd_info *sd_card = &(chip->sd_card);
2912 int retval;
2913
2914 if (chip->asic_code) {
2915 if (sd_card->sd_clock > 30)
2916 sd_card->sd_clock -= 20;
2917 } else {
2918 if (sd_card->sd_clock == CLK_100)
2919 sd_card->sd_clock = CLK_80;
2920 else if (sd_card->sd_clock == CLK_80)
2921 sd_card->sd_clock = CLK_60;
2922 else if (sd_card->sd_clock == CLK_60)
2923 sd_card->sd_clock = CLK_50;
2924 }
2925
2926 retval = rts51x_sd_switch_clock(chip);
2927 if (retval != STATUS_SUCCESS)
2928 TRACE_RET(chip, retval);
2929
2930 return STATUS_SUCCESS;
2931 }
2932
2933 int rts51x_sd_rw(struct scsi_cmnd *srb, struct rts51x_chip *chip, u32 start_sector,
2934 u16 sector_cnt)
2935 {
2936 struct sd_info *sd_card = &(chip->sd_card);
2937 u32 data_addr;
2938 int retval;
2939 u8 flag;
2940 unsigned int pipe;
2941 u8 stageflag;
2942
2943 sd_card->counter = 0;
2944
2945 if (!CHK_SD_HCXC(sd_card) && !CHK_MMC_SECTOR_MODE(sd_card))
2946 data_addr = start_sector << 9;
2947 else
2948 data_addr = start_sector;
2949
2950 RTS51X_DEBUGP("rts51x_sd_rw, data_addr = 0x%x\n", data_addr);
2951
2952 sd_clr_err_code(chip);
2953
2954 retval = rts51x_sd_switch_clock(chip);
2955 if (retval != STATUS_SUCCESS)
2956 TRACE_RET(chip, retval);
2957
2958 if (sd_card->seq_mode && ((sd_card->pre_dir != srb->sc_data_direction)
2959 ||
2960 ((sd_card->pre_sec_addr +
2961 sd_card->pre_sec_cnt) != start_sector))) {
2962 if ((sd_card->pre_dir == DMA_FROM_DEVICE)
2963 && !CHK_SD30_SPEED(sd_card)
2964 && !CHK_SD_HS(sd_card)
2965 && !CHK_MMC_HS(sd_card)
2966 && sd_card->sd_send_status_en) {
2967 sd_send_cmd_get_rsp(chip, SEND_STATUS,
2968 sd_card->sd_addr, SD_RSP_TYPE_R1,
2969 NULL, 0);
2970 }
2971
2972 retval =
2973 sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION, 0,
2974 SD_RSP_TYPE_R1b, NULL, 0);
2975 if (retval != STATUS_SUCCESS) {
2976 sd_set_err_code(chip, SD_STS_ERR);
2977 TRACE_RET(chip, sd_parse_err_code(chip));
2978 }
2979
2980 sd_card->seq_mode = 0;
2981
2982 RTS51X_WRITE_REG(chip, MC_FIFO_CTL, FIFO_FLUSH, FIFO_FLUSH);
2983
2984 if (!CHK_SD30_SPEED(sd_card)
2985 && !CHK_SD_HS(sd_card)
2986 && !CHK_MMC_HS(sd_card)
2987 && sd_card->sd_send_status_en) {
2988 /* random rw, so pre_sec_cnt < 0x80 */
2989 sd_send_cmd_get_rsp(chip, SEND_STATUS,
2990 sd_card->sd_addr, SD_RSP_TYPE_R1,
2991 NULL, 0);
2992 }
2993 }
2994
2995 rts51x_init_cmd(chip);
2996
2997 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0x00);
2998 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF, 0x02);
2999 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF,
3000 (u8) sector_cnt);
3001 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF,
3002 (u8) (sector_cnt >> 8));
3003
3004 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01,
3005 RING_BUFFER);
3006
3007 if (CHK_MMC_8BIT(sd_card))
3008 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0x03,
3009 SD_BUS_WIDTH_8);
3010 else if (CHK_MMC_4BIT(sd_card) || CHK_SD(sd_card))
3011 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0x03,
3012 SD_BUS_WIDTH_4);
3013 else
3014 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0x03,
3015 SD_BUS_WIDTH_1);
3016
3017 if (sd_card->seq_mode) {
3018 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
3019 SD_NO_CALCULATE_CRC7 | SD_CHECK_CRC16 |
3020 SD_NO_WAIT_BUSY_END | SD_NO_CHECK_CRC7 |
3021 SD_RSP_LEN_0);
3022
3023 rts51x_trans_dma_enable(srb->sc_data_direction, chip, sector_cnt * 512,
3024 DMA_512);
3025
3026 if (srb->sc_data_direction == DMA_FROM_DEVICE) {
3027 flag = MODE_CDIR;
3028 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
3029 SD_TM_AUTO_READ_3 | SD_TRANSFER_START);
3030 } else {
3031 flag = MODE_CDOR;
3032 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
3033 SD_TM_AUTO_WRITE_3 | SD_TRANSFER_START);
3034 }
3035
3036 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER,
3037 SD_TRANSFER_END, SD_TRANSFER_END);
3038
3039 retval = rts51x_send_cmd(chip, flag, 100);
3040 if (retval != STATUS_SUCCESS)
3041 TRACE_RET(chip, retval);
3042 } else {
3043 if (srb->sc_data_direction == DMA_FROM_DEVICE) {
3044 RTS51X_DEBUGP("SD/MMC CMD %d\n", READ_MULTIPLE_BLOCK);
3045 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0, 0xFF,
3046 0x40 | READ_MULTIPLE_BLOCK);
3047 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD1, 0xFF,
3048 (u8) (data_addr >> 24));
3049 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD2, 0xFF,
3050 (u8) (data_addr >> 16));
3051 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD3, 0xFF,
3052 (u8) (data_addr >> 8));
3053 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD4, 0xFF,
3054 (u8) data_addr);
3055
3056 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
3057 SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
3058 SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 |
3059 SD_RSP_LEN_6);
3060
3061 rts51x_trans_dma_enable(srb->sc_data_direction, chip,
3062 sector_cnt * 512, DMA_512);
3063
3064 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
3065 SD_TM_AUTO_READ_2 | SD_TRANSFER_START);
3066 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER,
3067 SD_TRANSFER_END, SD_TRANSFER_END);
3068
3069 retval = rts51x_send_cmd(chip, MODE_CDIR, 100);
3070 if (retval != STATUS_SUCCESS)
3071 TRACE_RET(chip, retval);
3072 } else {
3073 retval = rts51x_send_cmd(chip, MODE_C, 50);
3074 if (retval != STATUS_SUCCESS) {
3075 rts51x_clear_sd_error(chip);
3076
3077 sd_set_err_code(chip, SD_TO_ERR);
3078 TRACE_RET(chip, sd_parse_err_code(chip));
3079 }
3080
3081 retval = wait_data_buf_ready(chip);
3082 if (retval != STATUS_SUCCESS) {
3083 sd_set_err_code(chip, SD_TO_ERR);
3084 TRACE_RET(chip, sd_parse_err_code(chip));
3085 }
3086
3087 retval = sd_send_cmd_get_rsp(chip, WRITE_MULTIPLE_BLOCK,
3088 data_addr, SD_RSP_TYPE_R1,
3089 NULL, 0);
3090 if (retval != STATUS_SUCCESS) {
3091 sd_set_err_code(chip, SD_CRC_ERR);
3092 TRACE_RET(chip, sd_parse_err_code(chip));
3093 }
3094
3095 rts51x_init_cmd(chip);
3096
3097 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF,
3098 SD_NO_CALCULATE_CRC7 | SD_CHECK_CRC16 |
3099 SD_NO_WAIT_BUSY_END | SD_NO_CHECK_CRC7 |
3100 SD_RSP_LEN_0);
3101
3102 rts51x_trans_dma_enable(srb->sc_data_direction, chip,
3103 sector_cnt * 512, DMA_512);
3104
3105 rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
3106 SD_TM_AUTO_WRITE_3 | SD_TRANSFER_START);
3107 rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER,
3108 SD_TRANSFER_END, SD_TRANSFER_END);
3109
3110 retval = rts51x_send_cmd(chip, MODE_CDOR, 100);
3111 if (retval != STATUS_SUCCESS)
3112 TRACE_RET(chip, retval);
3113 }
3114
3115 sd_card->seq_mode = 1;
3116 }
3117
3118 if (srb->sc_data_direction == DMA_FROM_DEVICE) {
3119 pipe = RCV_BULK_PIPE(chip);
3120 stageflag = STAGE_DI;
3121 } else {
3122 pipe = SND_BULK_PIPE(chip);
3123 stageflag = STAGE_DO;
3124 }
3125
3126 retval =
3127 rts51x_transfer_data_rcc(chip, pipe, scsi_sglist(srb),
3128 scsi_bufflen(srb), scsi_sg_count(srb),
3129 NULL, 10000, stageflag);
3130 if (retval != STATUS_SUCCESS) {
3131 u8 stat = 0;
3132 int err = retval;
3133
3134 sd_print_debug_reg(chip);
3135
3136 rts51x_ep0_read_register(chip, SD_STAT1, &stat);
3137 RTS51X_DEBUGP("SD_STAT1: 0x%x\n", stat);
3138
3139 rts51x_clear_sd_error(chip);
3140
3141 retval =
3142 sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION, 0,
3143 SD_RSP_TYPE_R1b, NULL, 0);
3144 if (retval != STATUS_SUCCESS) {
3145 sd_set_err_code(chip, SD_STS_ERR);
3146 TRACE_RET(chip, retval);
3147 }
3148
3149 if (stat & (SD_CRC7_ERR | SD_CRC16_ERR | SD_CRC_WRITE_ERR)) {
3150 RTS51X_DEBUGP("SD CRC error, tune clock!\n");
3151 sd_auto_tune_clock(chip);
3152 }
3153
3154 sd_card->seq_mode = 0;
3155
3156 TRACE_RET(chip, err);
3157 }
3158 retval = rts51x_get_rsp(chip, 1, 2000);
3159 if (CHECK_SD_TRANS_FAIL(chip, retval)) {
3160 rts51x_clear_sd_error(chip);
3161 TRACE_RET(chip, STATUS_FAIL);
3162 }
3163
3164 sd_card->pre_sec_addr = start_sector;
3165 sd_card->pre_sec_cnt = sector_cnt;
3166 sd_card->pre_dir = srb->sc_data_direction;
3167
3168 return STATUS_SUCCESS;
3169 }
3170
3171 void rts51x_sd_cleanup_work(struct rts51x_chip *chip)
3172 {
3173 struct sd_info *sd_card = &(chip->sd_card);
3174
3175 if (sd_card->seq_mode) {
3176 RTS51X_DEBUGP("SD: stop transmission\n");
3177 sd_stop_seq_mode(chip);
3178 sd_card->counter = 0;
3179 }
3180 }
3181
3182 static inline void sd_fill_power_off_card3v3(struct rts51x_chip *chip)
3183 {
3184 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_CLK_EN, SD_CLK_EN, 0);
3185
3186 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_OE, SD_OUTPUT_EN, 0);
3187 if (!chip->option.FT2_fast_mode) {
3188 #ifdef SD_XD_IO_FOLLOW_PWR
3189 if (CHECK_PKG(chip, LQFP48)
3190 || chip->option.rts5129_D3318_off_enable)
3191 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL,
3192 POWER_MASK | LDO_OFF,
3193 POWER_OFF | LDO_OFF);
3194 else
3195 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL,
3196 POWER_MASK, POWER_OFF);
3197 #else
3198 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, POWER_MASK,
3199 POWER_OFF);
3200 #endif
3201 }
3202 }
3203
3204 static int sd_power_off_card3v3(struct rts51x_chip *chip)
3205 {
3206 int retval;
3207
3208 rts51x_init_cmd(chip);
3209
3210 sd_fill_power_off_card3v3(chip);
3211
3212 retval = rts51x_send_cmd(chip, MODE_C, 100);
3213 if (retval != STATUS_SUCCESS)
3214 TRACE_RET(chip, retval);
3215 #ifdef SD_XD_IO_FOLLOW_PWR
3216 if (!chip->option.FT2_fast_mode)
3217 wait_timeout(chip->option.D3318_off_delay);
3218 #endif
3219
3220 return STATUS_SUCCESS;
3221 }
3222
3223 int rts51x_release_sd_card(struct rts51x_chip *chip)
3224 {
3225 struct sd_info *sd_card = &(chip->sd_card);
3226 int retval;
3227
3228 RTS51X_DEBUGP("rts51x_release_sd_card\n");
3229
3230 chip->card_ready &= ~SD_CARD;
3231 chip->card_fail &= ~SD_CARD;
3232 chip->card_wp &= ~SD_CARD;
3233
3234 memset(sd_card->raw_csd, 0, 16);
3235 memset(sd_card->raw_scr, 0, 8);
3236
3237 rts51x_write_register(chip, SFSM_ED, HW_CMD_STOP, HW_CMD_STOP);
3238 rts51x_write_register(chip, SD_PAD_CTL, SD_IO_USING_1V8, 0);
3239 if (CHECK_PKG(chip, LQFP48) || chip->option.rts5129_D3318_off_enable)
3240 sd_power_off_card3v3(chip);
3241
3242 rts51x_init_cmd(chip);
3243 if (!(CHECK_PKG(chip, LQFP48) || chip->option.rts5129_D3318_off_enable))
3244 sd_fill_power_off_card3v3(chip);
3245
3246 if (chip->asic_code)
3247 sd_pull_ctl_disable(chip);
3248 else
3249 rts51x_add_cmd(chip, WRITE_REG_CMD, FPGA_PULL_CTL,
3250 FPGA_SD_PULL_CTL_BIT | 0x20,
3251 FPGA_SD_PULL_CTL_BIT);
3252
3253 /* Switch LDO3318 to 3.3V */
3254 rts51x_add_cmd(chip, WRITE_REG_CMD, LDO_POWER_CFG, TUNE_SD18_MASK,
3255 TUNE_SD18_3V3);
3256
3257 if (CHK_MMC_DDR52(sd_card) && CHK_MMC_8BIT(sd_card))
3258 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DMA1_CTL,
3259 EXTEND_DMA1_ASYNC_SIGNAL,
3260 EXTEND_DMA1_ASYNC_SIGNAL);
3261 if (CHK_SD30_SPEED(sd_card) || CHK_MMC(sd_card))
3262 rts51x_add_cmd(chip, WRITE_REG_CMD, SD30_DRIVE_SEL,
3263 SD30_DRIVE_MASK, chip->option.sd30_pad_drive);
3264 /* Suspend LDO3318 */
3265 rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, LDO3318_PWR_MASK,
3266 LDO_SUSPEND);
3267
3268 retval = rts51x_send_cmd(chip, MODE_C, 100);
3269 if (retval != STATUS_SUCCESS)
3270 TRACE_RET(chip, retval);
3271 wait_timeout(20);
3272
3273 return STATUS_SUCCESS;
3274 }
Linux with added FPC-III support