blob: 26fe125cea7dcea3e93bc95b65667b40157191b1 [file] [log] [blame]
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +00001/*
2 * MMCIF driver.
3 *
4 * Copyright (C) 2011 Renesas Solutions Corp.
5 *
Tom Rinie2378802016-01-14 22:05:13 -05006 * SPDX-License-Identifier: GPL-2.0
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +00007 */
8
9#include <config.h>
10#include <common.h>
11#include <watchdog.h>
12#include <command.h>
13#include <mmc.h>
Marek Vasut26b87a02018-04-21 17:27:11 +020014#include <clk.h>
15#include <dm.h>
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +000016#include <malloc.h>
Masahiro Yamada56a931c2016-09-21 11:28:55 +090017#include <linux/errno.h>
Marek Vasut26b87a02018-04-21 17:27:11 +020018#include <linux/compat.h>
19#include <linux/io.h>
20#include <linux/sizes.h>
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +000021#include "sh_mmcif.h"
22
23#define DRIVER_NAME "sh_mmcif"
24
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +000025static int sh_mmcif_intr(void *dev_id)
26{
27 struct sh_mmcif_host *host = dev_id;
28 u32 state = 0;
29
30 state = sh_mmcif_read(&host->regs->ce_int);
31 state &= sh_mmcif_read(&host->regs->ce_int_mask);
32
33 if (state & INT_RBSYE) {
34 sh_mmcif_write(~(INT_RBSYE | INT_CRSPE), &host->regs->ce_int);
35 sh_mmcif_bitclr(MASK_MRBSYE, &host->regs->ce_int_mask);
36 goto end;
37 } else if (state & INT_CRSPE) {
38 sh_mmcif_write(~INT_CRSPE, &host->regs->ce_int);
39 sh_mmcif_bitclr(MASK_MCRSPE, &host->regs->ce_int_mask);
40 /* one more interrupt (INT_RBSYE) */
41 if (sh_mmcif_read(&host->regs->ce_cmd_set) & CMD_SET_RBSY)
42 return -EAGAIN;
43 goto end;
44 } else if (state & INT_BUFREN) {
45 sh_mmcif_write(~INT_BUFREN, &host->regs->ce_int);
46 sh_mmcif_bitclr(MASK_MBUFREN, &host->regs->ce_int_mask);
47 goto end;
48 } else if (state & INT_BUFWEN) {
49 sh_mmcif_write(~INT_BUFWEN, &host->regs->ce_int);
50 sh_mmcif_bitclr(MASK_MBUFWEN, &host->regs->ce_int_mask);
51 goto end;
52 } else if (state & INT_CMD12DRE) {
53 sh_mmcif_write(~(INT_CMD12DRE | INT_CMD12RBE | INT_CMD12CRE |
54 INT_BUFRE), &host->regs->ce_int);
55 sh_mmcif_bitclr(MASK_MCMD12DRE, &host->regs->ce_int_mask);
56 goto end;
57 } else if (state & INT_BUFRE) {
58 sh_mmcif_write(~INT_BUFRE, &host->regs->ce_int);
59 sh_mmcif_bitclr(MASK_MBUFRE, &host->regs->ce_int_mask);
60 goto end;
61 } else if (state & INT_DTRANE) {
62 sh_mmcif_write(~INT_DTRANE, &host->regs->ce_int);
63 sh_mmcif_bitclr(MASK_MDTRANE, &host->regs->ce_int_mask);
64 goto end;
65 } else if (state & INT_CMD12RBE) {
66 sh_mmcif_write(~(INT_CMD12RBE | INT_CMD12CRE),
67 &host->regs->ce_int);
68 sh_mmcif_bitclr(MASK_MCMD12RBE, &host->regs->ce_int_mask);
69 goto end;
70 } else if (state & INT_ERR_STS) {
71 /* err interrupts */
72 sh_mmcif_write(~state, &host->regs->ce_int);
73 sh_mmcif_bitclr(state, &host->regs->ce_int_mask);
74 goto err;
75 } else
76 return -EAGAIN;
77
78err:
79 host->sd_error = 1;
80 debug("%s: int err state = %08x\n", DRIVER_NAME, state);
81end:
82 host->wait_int = 1;
83 return 0;
84}
85
86static int mmcif_wait_interrupt_flag(struct sh_mmcif_host *host)
87{
88 int timeout = 10000000;
89
90 while (1) {
91 timeout--;
92 if (timeout < 0) {
93 printf("timeout\n");
94 return 0;
95 }
96
97 if (!sh_mmcif_intr(host))
98 break;
99
100 udelay(1); /* 1 usec */
101 }
102
103 return 1; /* Return value: NOT 0 = complete waiting */
104}
105
106static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk)
107{
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000108 sh_mmcif_bitclr(CLK_ENABLE, &host->regs->ce_clk_ctrl);
109 sh_mmcif_bitclr(CLK_CLEAR, &host->regs->ce_clk_ctrl);
110
111 if (!clk)
112 return;
Nobuhiro Iwamatsu72008872014-12-03 17:57:00 +0900113
114 if (clk == CLKDEV_EMMC_DATA)
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000115 sh_mmcif_bitset(CLK_PCLK, &host->regs->ce_clk_ctrl);
Nobuhiro Iwamatsu72008872014-12-03 17:57:00 +0900116 else
117 sh_mmcif_bitset((fls(DIV_ROUND_UP(host->clk,
118 clk) - 1) - 1) << 16,
119 &host->regs->ce_clk_ctrl);
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000120 sh_mmcif_bitset(CLK_ENABLE, &host->regs->ce_clk_ctrl);
121}
122
123static void sh_mmcif_sync_reset(struct sh_mmcif_host *host)
124{
125 u32 tmp;
126
127 tmp = sh_mmcif_read(&host->regs->ce_clk_ctrl) & (CLK_ENABLE |
128 CLK_CLEAR);
129
130 sh_mmcif_write(SOFT_RST_ON, &host->regs->ce_version);
131 sh_mmcif_write(SOFT_RST_OFF, &host->regs->ce_version);
132 sh_mmcif_bitset(tmp | SRSPTO_256 | SRBSYTO_29 | SRWDTO_29 | SCCSTO_29,
133 &host->regs->ce_clk_ctrl);
134 /* byte swap on */
135 sh_mmcif_bitset(BUF_ACC_ATYP, &host->regs->ce_buf_acc);
136}
137
138static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
139{
140 u32 state1, state2;
141 int ret, timeout = 10000000;
142
143 host->sd_error = 0;
144 host->wait_int = 0;
145
146 state1 = sh_mmcif_read(&host->regs->ce_host_sts1);
147 state2 = sh_mmcif_read(&host->regs->ce_host_sts2);
148 debug("%s: ERR HOST_STS1 = %08x\n", \
149 DRIVER_NAME, sh_mmcif_read(&host->regs->ce_host_sts1));
150 debug("%s: ERR HOST_STS2 = %08x\n", \
151 DRIVER_NAME, sh_mmcif_read(&host->regs->ce_host_sts2));
152
153 if (state1 & STS1_CMDSEQ) {
154 debug("%s: Forced end of command sequence\n", DRIVER_NAME);
155 sh_mmcif_bitset(CMD_CTRL_BREAK, &host->regs->ce_cmd_ctrl);
156 sh_mmcif_bitset(~CMD_CTRL_BREAK, &host->regs->ce_cmd_ctrl);
157 while (1) {
158 timeout--;
159 if (timeout < 0) {
160 printf(DRIVER_NAME": Forceed end of " \
161 "command sequence timeout err\n");
162 return -EILSEQ;
163 }
164 if (!(sh_mmcif_read(&host->regs->ce_host_sts1)
165 & STS1_CMDSEQ))
166 break;
167 }
168 sh_mmcif_sync_reset(host);
169 return -EILSEQ;
170 }
171
172 if (state2 & STS2_CRC_ERR)
173 ret = -EILSEQ;
174 else if (state2 & STS2_TIMEOUT_ERR)
Jaehoon Chung7825d202016-07-19 16:33:36 +0900175 ret = -ETIMEDOUT;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000176 else
177 ret = -EILSEQ;
178 return ret;
179}
180
181static int sh_mmcif_single_read(struct sh_mmcif_host *host,
182 struct mmc_data *data)
183{
184 long time;
185 u32 blocksize, i;
186 unsigned long *p = (unsigned long *)data->dest;
187
188 if ((unsigned long)p & 0x00000001) {
189 printf("%s: The data pointer is unaligned.", __func__);
190 return -EIO;
191 }
192
193 host->wait_int = 0;
194
195 /* buf read enable */
196 sh_mmcif_bitset(MASK_MBUFREN, &host->regs->ce_int_mask);
197 time = mmcif_wait_interrupt_flag(host);
198 if (time == 0 || host->sd_error != 0)
199 return sh_mmcif_error_manage(host);
200
201 host->wait_int = 0;
202 blocksize = (BLOCK_SIZE_MASK &
203 sh_mmcif_read(&host->regs->ce_block_set)) + 3;
204 for (i = 0; i < blocksize / 4; i++)
205 *p++ = sh_mmcif_read(&host->regs->ce_data);
206
207 /* buffer read end */
208 sh_mmcif_bitset(MASK_MBUFRE, &host->regs->ce_int_mask);
209 time = mmcif_wait_interrupt_flag(host);
210 if (time == 0 || host->sd_error != 0)
211 return sh_mmcif_error_manage(host);
212
213 host->wait_int = 0;
214 return 0;
215}
216
217static int sh_mmcif_multi_read(struct sh_mmcif_host *host,
218 struct mmc_data *data)
219{
220 long time;
221 u32 blocksize, i, j;
222 unsigned long *p = (unsigned long *)data->dest;
223
224 if ((unsigned long)p & 0x00000001) {
225 printf("%s: The data pointer is unaligned.", __func__);
226 return -EIO;
227 }
228
229 host->wait_int = 0;
230 blocksize = BLOCK_SIZE_MASK & sh_mmcif_read(&host->regs->ce_block_set);
231 for (j = 0; j < data->blocks; j++) {
232 sh_mmcif_bitset(MASK_MBUFREN, &host->regs->ce_int_mask);
233 time = mmcif_wait_interrupt_flag(host);
234 if (time == 0 || host->sd_error != 0)
235 return sh_mmcif_error_manage(host);
236
237 host->wait_int = 0;
238 for (i = 0; i < blocksize / 4; i++)
239 *p++ = sh_mmcif_read(&host->regs->ce_data);
240
241 WATCHDOG_RESET();
242 }
243 return 0;
244}
245
246static int sh_mmcif_single_write(struct sh_mmcif_host *host,
247 struct mmc_data *data)
248{
249 long time;
250 u32 blocksize, i;
251 const unsigned long *p = (unsigned long *)data->dest;
252
253 if ((unsigned long)p & 0x00000001) {
254 printf("%s: The data pointer is unaligned.", __func__);
255 return -EIO;
256 }
257
258 host->wait_int = 0;
259 sh_mmcif_bitset(MASK_MBUFWEN, &host->regs->ce_int_mask);
260
261 time = mmcif_wait_interrupt_flag(host);
262 if (time == 0 || host->sd_error != 0)
263 return sh_mmcif_error_manage(host);
264
265 host->wait_int = 0;
266 blocksize = (BLOCK_SIZE_MASK &
267 sh_mmcif_read(&host->regs->ce_block_set)) + 3;
268 for (i = 0; i < blocksize / 4; i++)
269 sh_mmcif_write(*p++, &host->regs->ce_data);
270
271 /* buffer write end */
272 sh_mmcif_bitset(MASK_MDTRANE, &host->regs->ce_int_mask);
273
274 time = mmcif_wait_interrupt_flag(host);
275 if (time == 0 || host->sd_error != 0)
276 return sh_mmcif_error_manage(host);
277
278 host->wait_int = 0;
279 return 0;
280}
281
282static int sh_mmcif_multi_write(struct sh_mmcif_host *host,
283 struct mmc_data *data)
284{
285 long time;
286 u32 i, j, blocksize;
287 const unsigned long *p = (unsigned long *)data->dest;
288
289 if ((unsigned long)p & 0x00000001) {
290 printf("%s: The data pointer is unaligned.", __func__);
291 return -EIO;
292 }
293
294 host->wait_int = 0;
295 blocksize = BLOCK_SIZE_MASK & sh_mmcif_read(&host->regs->ce_block_set);
296 for (j = 0; j < data->blocks; j++) {
297 sh_mmcif_bitset(MASK_MBUFWEN, &host->regs->ce_int_mask);
298
299 time = mmcif_wait_interrupt_flag(host);
300
301 if (time == 0 || host->sd_error != 0)
302 return sh_mmcif_error_manage(host);
303
304 host->wait_int = 0;
305 for (i = 0; i < blocksize / 4; i++)
306 sh_mmcif_write(*p++, &host->regs->ce_data);
307
308 WATCHDOG_RESET();
309 }
310 return 0;
311}
312
313static void sh_mmcif_get_response(struct sh_mmcif_host *host,
314 struct mmc_cmd *cmd)
315{
316 if (cmd->resp_type & MMC_RSP_136) {
317 cmd->response[0] = sh_mmcif_read(&host->regs->ce_resp3);
318 cmd->response[1] = sh_mmcif_read(&host->regs->ce_resp2);
319 cmd->response[2] = sh_mmcif_read(&host->regs->ce_resp1);
320 cmd->response[3] = sh_mmcif_read(&host->regs->ce_resp0);
321 debug(" RESP %08x, %08x, %08x, %08x\n", cmd->response[0],
322 cmd->response[1], cmd->response[2], cmd->response[3]);
323 } else {
324 cmd->response[0] = sh_mmcif_read(&host->regs->ce_resp0);
325 }
326}
327
328static void sh_mmcif_get_cmd12response(struct sh_mmcif_host *host,
329 struct mmc_cmd *cmd)
330{
331 cmd->response[0] = sh_mmcif_read(&host->regs->ce_resp_cmd12);
332}
333
334static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
335 struct mmc_data *data, struct mmc_cmd *cmd)
336{
337 u32 tmp = 0;
338 u32 opc = cmd->cmdidx;
339
340 /* Response Type check */
341 switch (cmd->resp_type) {
342 case MMC_RSP_NONE:
343 tmp |= CMD_SET_RTYP_NO;
344 break;
345 case MMC_RSP_R1:
346 case MMC_RSP_R1b:
347 case MMC_RSP_R3:
348 tmp |= CMD_SET_RTYP_6B;
349 break;
350 case MMC_RSP_R2:
351 tmp |= CMD_SET_RTYP_17B;
352 break;
353 default:
354 printf(DRIVER_NAME": Not support type response.\n");
355 break;
356 }
357
358 /* RBSY */
359 if (opc == MMC_CMD_SWITCH)
360 tmp |= CMD_SET_RBSY;
361
362 /* WDAT / DATW */
363 if (host->data) {
364 tmp |= CMD_SET_WDAT;
365 switch (host->bus_width) {
366 case MMC_BUS_WIDTH_1:
367 tmp |= CMD_SET_DATW_1;
368 break;
369 case MMC_BUS_WIDTH_4:
370 tmp |= CMD_SET_DATW_4;
371 break;
372 case MMC_BUS_WIDTH_8:
373 tmp |= CMD_SET_DATW_8;
374 break;
375 default:
376 printf(DRIVER_NAME": Not support bus width.\n");
377 break;
378 }
379 }
380 /* DWEN */
381 if (opc == MMC_CMD_WRITE_SINGLE_BLOCK ||
382 opc == MMC_CMD_WRITE_MULTIPLE_BLOCK)
383 tmp |= CMD_SET_DWEN;
384 /* CMLTE/CMD12EN */
385 if (opc == MMC_CMD_READ_MULTIPLE_BLOCK ||
386 opc == MMC_CMD_WRITE_MULTIPLE_BLOCK) {
387 tmp |= CMD_SET_CMLTE | CMD_SET_CMD12EN;
388 sh_mmcif_bitset(data->blocks << 16, &host->regs->ce_block_set);
389 }
390 /* RIDXC[1:0] check bits */
391 if (opc == MMC_CMD_SEND_OP_COND || opc == MMC_CMD_ALL_SEND_CID ||
392 opc == MMC_CMD_SEND_CSD || opc == MMC_CMD_SEND_CID)
393 tmp |= CMD_SET_RIDXC_BITS;
394 /* RCRC7C[1:0] check bits */
395 if (opc == MMC_CMD_SEND_OP_COND)
396 tmp |= CMD_SET_CRC7C_BITS;
397 /* RCRC7C[1:0] internal CRC7 */
398 if (opc == MMC_CMD_ALL_SEND_CID ||
399 opc == MMC_CMD_SEND_CSD || opc == MMC_CMD_SEND_CID)
400 tmp |= CMD_SET_CRC7C_INTERNAL;
401
402 return opc = ((opc << 24) | tmp);
403}
404
405static u32 sh_mmcif_data_trans(struct sh_mmcif_host *host,
406 struct mmc_data *data, u16 opc)
407{
408 u32 ret;
409
410 switch (opc) {
411 case MMC_CMD_READ_MULTIPLE_BLOCK:
412 ret = sh_mmcif_multi_read(host, data);
413 break;
414 case MMC_CMD_WRITE_MULTIPLE_BLOCK:
415 ret = sh_mmcif_multi_write(host, data);
416 break;
417 case MMC_CMD_WRITE_SINGLE_BLOCK:
418 ret = sh_mmcif_single_write(host, data);
419 break;
420 case MMC_CMD_READ_SINGLE_BLOCK:
421 case MMC_CMD_SEND_EXT_CSD:
422 ret = sh_mmcif_single_read(host, data);
423 break;
424 default:
425 printf(DRIVER_NAME": NOT SUPPORT CMD = d'%08d\n", opc);
426 ret = -EINVAL;
427 break;
428 }
429 return ret;
430}
431
432static int sh_mmcif_start_cmd(struct sh_mmcif_host *host,
433 struct mmc_data *data, struct mmc_cmd *cmd)
434{
435 long time;
436 int ret = 0, mask = 0;
437 u32 opc = cmd->cmdidx;
438
439 if (opc == MMC_CMD_STOP_TRANSMISSION) {
440 /* MMCIF sends the STOP command automatically */
441 if (host->last_cmd == MMC_CMD_READ_MULTIPLE_BLOCK)
442 sh_mmcif_bitset(MASK_MCMD12DRE,
443 &host->regs->ce_int_mask);
444 else
445 sh_mmcif_bitset(MASK_MCMD12RBE,
446 &host->regs->ce_int_mask);
447
448 time = mmcif_wait_interrupt_flag(host);
449 if (time == 0 || host->sd_error != 0)
450 return sh_mmcif_error_manage(host);
451
452 sh_mmcif_get_cmd12response(host, cmd);
453 return 0;
454 }
455 if (opc == MMC_CMD_SWITCH)
456 mask = MASK_MRBSYE;
457 else
458 mask = MASK_MCRSPE;
459
460 mask |= MASK_MCMDVIO | MASK_MBUFVIO | MASK_MWDATERR |
461 MASK_MRDATERR | MASK_MRIDXERR | MASK_MRSPERR |
462 MASK_MCCSTO | MASK_MCRCSTO | MASK_MWDATTO |
463 MASK_MRDATTO | MASK_MRBSYTO | MASK_MRSPTO;
464
465 if (host->data) {
466 sh_mmcif_write(0, &host->regs->ce_block_set);
467 sh_mmcif_write(data->blocksize, &host->regs->ce_block_set);
468 }
469 opc = sh_mmcif_set_cmd(host, data, cmd);
470
471 sh_mmcif_write(INT_START_MAGIC, &host->regs->ce_int);
472 sh_mmcif_write(mask, &host->regs->ce_int_mask);
473
474 debug("CMD%d ARG:%08x\n", cmd->cmdidx, cmd->cmdarg);
475 /* set arg */
476 sh_mmcif_write(cmd->cmdarg, &host->regs->ce_arg);
477 host->wait_int = 0;
478 /* set cmd */
479 sh_mmcif_write(opc, &host->regs->ce_cmd_set);
480
481 time = mmcif_wait_interrupt_flag(host);
482 if (time == 0)
483 return sh_mmcif_error_manage(host);
484
485 if (host->sd_error) {
486 switch (cmd->cmdidx) {
487 case MMC_CMD_ALL_SEND_CID:
488 case MMC_CMD_SELECT_CARD:
489 case MMC_CMD_APP_CMD:
Jaehoon Chung7825d202016-07-19 16:33:36 +0900490 ret = -ETIMEDOUT;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000491 break;
492 default:
493 printf(DRIVER_NAME": Cmd(d'%d) err\n", cmd->cmdidx);
494 ret = sh_mmcif_error_manage(host);
495 break;
496 }
497 host->sd_error = 0;
498 host->wait_int = 0;
499 return ret;
500 }
501
502 /* if no response */
503 if (!(opc & 0x00C00000))
504 return 0;
505
506 if (host->wait_int == 1) {
507 sh_mmcif_get_response(host, cmd);
508 host->wait_int = 0;
509 }
510 if (host->data)
511 ret = sh_mmcif_data_trans(host, data, cmd->cmdidx);
512 host->last_cmd = cmd->cmdidx;
513
514 return ret;
515}
516
Marek Vasut26b87a02018-04-21 17:27:11 +0200517static int sh_mmcif_send_cmd_common(struct sh_mmcif_host *host,
518 struct mmc_cmd *cmd, struct mmc_data *data)
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000519{
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000520 int ret;
521
522 WATCHDOG_RESET();
523
524 switch (cmd->cmdidx) {
525 case MMC_CMD_APP_CMD:
Jaehoon Chung7825d202016-07-19 16:33:36 +0900526 return -ETIMEDOUT;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000527 case MMC_CMD_SEND_EXT_CSD: /* = SD_SEND_IF_COND (8) */
528 if (data)
529 /* ext_csd */
530 break;
531 else
532 /* send_if_cond cmd (not support) */
Jaehoon Chung7825d202016-07-19 16:33:36 +0900533 return -ETIMEDOUT;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000534 default:
535 break;
536 }
537 host->sd_error = 0;
538 host->data = data;
539 ret = sh_mmcif_start_cmd(host, data, cmd);
540 host->data = NULL;
541
542 return ret;
543}
544
Marek Vasut26b87a02018-04-21 17:27:11 +0200545static int sh_mmcif_set_ios_common(struct sh_mmcif_host *host, struct mmc *mmc)
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000546{
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000547 if (mmc->clock)
548 sh_mmcif_clock_control(host, mmc->clock);
549
550 if (mmc->bus_width == 8)
551 host->bus_width = MMC_BUS_WIDTH_8;
552 else if (mmc->bus_width == 4)
553 host->bus_width = MMC_BUS_WIDTH_4;
554 else
555 host->bus_width = MMC_BUS_WIDTH_1;
556
557 debug("clock = %d, buswidth = %d\n", mmc->clock, mmc->bus_width);
Jaehoon Chungb6cd1d32016-12-30 15:30:16 +0900558
559 return 0;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000560}
561
Marek Vasut26b87a02018-04-21 17:27:11 +0200562static int sh_mmcif_initialize_common(struct sh_mmcif_host *host)
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000563{
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000564 sh_mmcif_sync_reset(host);
565 sh_mmcif_write(MASK_ALL, &host->regs->ce_int_mask);
566 return 0;
567}
568
Marek Vasut26b87a02018-04-21 17:27:11 +0200569#ifndef CONFIG_DM_MMC
570static void *mmc_priv(struct mmc *mmc)
571{
572 return (void *)mmc->priv;
573}
574
575static int sh_mmcif_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
576 struct mmc_data *data)
577{
578 struct sh_mmcif_host *host = mmc_priv(mmc);
579
580 return sh_mmcif_send_cmd_common(host, cmd, data);
581}
582
583static int sh_mmcif_set_ios(struct mmc *mmc)
584{
585 struct sh_mmcif_host *host = mmc_priv(mmc);
586
587 return sh_mmcif_set_ios_common(host, mmc);
588}
589
590static int sh_mmcif_initialize(struct mmc *mmc)
591{
592 struct sh_mmcif_host *host = mmc_priv(mmc);
593
594 return sh_mmcif_initialize_common(host);
595}
596
Pantelis Antoniouc9e75912014-02-26 19:28:45 +0200597static const struct mmc_ops sh_mmcif_ops = {
Marek Vasut26b87a02018-04-21 17:27:11 +0200598 .send_cmd = sh_mmcif_send_cmd,
599 .set_ios = sh_mmcif_set_ios,
600 .init = sh_mmcif_initialize,
Pantelis Antoniouc9e75912014-02-26 19:28:45 +0200601};
602
Pantelis Antoniou2c850462014-03-11 19:34:20 +0200603static struct mmc_config sh_mmcif_cfg = {
604 .name = DRIVER_NAME,
605 .ops = &sh_mmcif_ops,
606 .host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT |
Rob Herring5fd3edd2015-03-23 17:56:59 -0500607 MMC_MODE_8BIT,
Nobuhiro Iwamatsu30600642014-03-31 14:54:28 +0900608 .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
Pantelis Antoniou2c850462014-03-11 19:34:20 +0200609 .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
610};
611
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000612int mmcif_mmc_init(void)
613{
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000614 struct mmc *mmc;
615 struct sh_mmcif_host *host = NULL;
616
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000617 host = malloc(sizeof(struct sh_mmcif_host));
618 if (!host)
Nobuhiro Iwamatsu5cedb6e2014-03-31 14:54:29 +0900619 return -ENOMEM;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000620 memset(host, 0, sizeof(*host));
621
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000622 host->regs = (struct sh_mmcif_regs *)CONFIG_SH_MMCIF_ADDR;
623 host->clk = CONFIG_SH_MMCIF_CLK;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000624
Nobuhiro Iwamatsu2fb07ee2014-12-03 17:57:01 +0900625 sh_mmcif_cfg.f_min = MMC_CLK_DIV_MIN(host->clk);
Nobuhiro Iwamatsu36c6e712014-12-03 17:57:48 +0900626 sh_mmcif_cfg.f_max = MMC_CLK_DIV_MAX(host->clk);
Nobuhiro Iwamatsu2fb07ee2014-12-03 17:57:01 +0900627
Pantelis Antoniou2c850462014-03-11 19:34:20 +0200628 mmc = mmc_create(&sh_mmcif_cfg, host);
629 if (mmc == NULL) {
630 free(host);
631 return -ENOMEM;
632 }
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000633
Pantelis Antoniou2c850462014-03-11 19:34:20 +0200634 return 0;
Yoshihiro Shimodadb7717b2011-07-04 22:21:22 +0000635}
Marek Vasut26b87a02018-04-21 17:27:11 +0200636
637#else
638struct sh_mmcif_plat {
639 struct mmc_config cfg;
640 struct mmc mmc;
641};
642
643int sh_mmcif_dm_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
644 struct mmc_data *data)
645{
646 struct sh_mmcif_host *host = dev_get_priv(dev);
647
648 return sh_mmcif_send_cmd_common(host, cmd, data);
649}
650
651int sh_mmcif_dm_set_ios(struct udevice *dev)
652{
653 struct sh_mmcif_host *host = dev_get_priv(dev);
654 struct mmc *mmc = mmc_get_mmc_dev(dev);
655
656 return sh_mmcif_set_ios_common(host, mmc);
657}
658
659static const struct dm_mmc_ops sh_mmcif_dm_ops = {
660 .send_cmd = sh_mmcif_dm_send_cmd,
661 .set_ios = sh_mmcif_dm_set_ios,
662};
663
664static int sh_mmcif_dm_bind(struct udevice *dev)
665{
666 struct sh_mmcif_plat *plat = dev_get_platdata(dev);
667
668 return mmc_bind(dev, &plat->mmc, &plat->cfg);
669}
670
671static int sh_mmcif_dm_probe(struct udevice *dev)
672{
673 struct sh_mmcif_plat *plat = dev_get_platdata(dev);
674 struct sh_mmcif_host *host = dev_get_priv(dev);
675 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
676 struct clk sh_mmcif_clk;
677 fdt_addr_t base;
678 int ret;
679
680 base = devfdt_get_addr(dev);
681 if (base == FDT_ADDR_T_NONE)
682 return -EINVAL;
683
684 host->regs = (struct sh_mmcif_regs *)devm_ioremap(dev, base, SZ_2K);
685 if (!host->regs)
686 return -ENOMEM;
687
688 ret = clk_get_by_index(dev, 0, &sh_mmcif_clk);
689 if (ret) {
690 debug("failed to get clock, ret=%d\n", ret);
691 return ret;
692 }
693
694 ret = clk_enable(&sh_mmcif_clk);
695 if (ret) {
696 debug("failed to enable clock, ret=%d\n", ret);
697 return ret;
698 }
699
700 host->clk = clk_get_rate(&sh_mmcif_clk);
701
702 plat->cfg.name = dev->name;
703 plat->cfg.host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS;
704
705 switch (fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "bus-width",
706 1)) {
707 case 8:
708 plat->cfg.host_caps |= MMC_MODE_8BIT;
709 break;
710 case 4:
711 plat->cfg.host_caps |= MMC_MODE_4BIT;
712 break;
713 case 1:
714 break;
715 default:
716 dev_err(dev, "Invalid \"bus-width\" value\n");
717 return -EINVAL;
718 }
719
720 sh_mmcif_initialize_common(host);
721
722 plat->cfg.voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34;
723 plat->cfg.f_min = MMC_CLK_DIV_MIN(host->clk);
724 plat->cfg.f_max = MMC_CLK_DIV_MAX(host->clk);
725 plat->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
726
727 upriv->mmc = &plat->mmc;
728
729 return 0;
730}
731
732static const struct udevice_id sh_mmcif_sd_match[] = {
733 { .compatible = "renesas,sh-mmcif" },
734 { /* sentinel */ }
735};
736
737U_BOOT_DRIVER(sh_mmcif_mmc) = {
738 .name = "sh-mmcif",
739 .id = UCLASS_MMC,
740 .of_match = sh_mmcif_sd_match,
741 .bind = sh_mmcif_dm_bind,
742 .probe = sh_mmcif_dm_probe,
743 .priv_auto_alloc_size = sizeof(struct sh_mmcif_host),
744 .platdata_auto_alloc_size = sizeof(struct sh_mmcif_plat),
745 .ops = &sh_mmcif_dm_ops,
746};
747#endif