3 * Texas Instruments, <www.ti.com>
4 * Syed Mohammed Khasim <khasim@ti.com>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation's version 2 of
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 const unsigned short mmc_transspeed_val[15][4] = {
33 {CLKD(10, 1), CLKD(10, 10), CLKD(10, 100), CLKD(10, 1000)},
34 {CLKD(12, 1), CLKD(12, 10), CLKD(12, 100), CLKD(12, 1000)},
35 {CLKD(13, 1), CLKD(13, 10), CLKD(13, 100), CLKD(13, 1000)},
36 {CLKD(15, 1), CLKD(15, 10), CLKD(15, 100), CLKD(15, 1000)},
37 {CLKD(20, 1), CLKD(20, 10), CLKD(20, 100), CLKD(20, 1000)},
38 {CLKD(26, 1), CLKD(26, 10), CLKD(26, 100), CLKD(26, 1000)},
39 {CLKD(30, 1), CLKD(30, 10), CLKD(30, 100), CLKD(30, 1000)},
40 {CLKD(35, 1), CLKD(35, 10), CLKD(35, 100), CLKD(35, 1000)},
41 {CLKD(40, 1), CLKD(40, 10), CLKD(40, 100), CLKD(40, 1000)},
42 {CLKD(45, 1), CLKD(45, 10), CLKD(45, 100), CLKD(45, 1000)},
43 {CLKD(52, 1), CLKD(52, 10), CLKD(52, 100), CLKD(52, 1000)},
44 {CLKD(55, 1), CLKD(55, 10), CLKD(55, 100), CLKD(55, 1000)},
45 {CLKD(60, 1), CLKD(60, 10), CLKD(60, 100), CLKD(60, 1000)},
46 {CLKD(70, 1), CLKD(70, 10), CLKD(70, 100), CLKD(70, 1000)},
47 {CLKD(80, 1), CLKD(80, 10), CLKD(80, 100), CLKD(80, 1000)}
50 mmc_card_data cur_card_data;
51 static block_dev_desc_t mmc_blk_dev;
53 block_dev_desc_t *mmc_get_dev(int dev)
55 return (block_dev_desc_t *)&mmc_blk_dev;
58 unsigned char mmc_board_init(void)
63 void mmc_init_stream(void)
65 OMAP_HSMMC_CON |= INIT_INITSTREAM;
67 OMAP_HSMMC_CMD = MMC_CMD0;
69 while (!(OMAP_HSMMC_STAT & CC_MASK))
72 OMAP_HSMMC_STAT = CC_MASK;
74 OMAP_HSMMC_CMD = MMC_CMD0;
76 while (!(OMAP_HSMMC_STAT & CC_MASK))
79 OMAP_HSMMC_STAT = OMAP_HSMMC_STAT;
80 OMAP_HSMMC_CON &= ~INIT_INITSTREAM;
83 unsigned char mmc_clock_config(unsigned int iclk, unsigned short clk_div)
87 mmc_reg_out(OMAP_HSMMC_SYSCTL, (ICE_MASK | DTO_MASK | CEN_MASK),
88 (ICE_STOP | DTO_15THDTO | CEN_DISABLE));
92 val = MMC_INIT_SEQ_CLK / 2;
103 mmc_reg_out(OMAP_HSMMC_SYSCTL,
104 ICE_MASK | CLKD_MASK, (val << CLKD_OFFSET) | ICE_OSCILLATE);
106 while ((OMAP_HSMMC_SYSCTL & ICS_MASK) == ICS_NOTREADY)
109 OMAP_HSMMC_SYSCTL |= CEN_ENABLE;
113 unsigned char mmc_init_setup(void)
115 unsigned int reg_val;
119 OMAP_HSMMC_SYSCONFIG |= MMC_SOFTRESET;
120 while ((OMAP_HSMMC_SYSSTATUS & RESETDONE) == 0)
123 OMAP_HSMMC_SYSCTL |= SOFTRESETALL;
124 while ((OMAP_HSMMC_SYSCTL & SOFTRESETALL) != 0x0)
127 OMAP_HSMMC_HCTL = DTW_1_BITMODE | SDBP_PWROFF | SDVS_3V0;
128 OMAP_HSMMC_CAPA |= VS30_3V0SUP | VS18_1V8SUP;
130 reg_val = OMAP_HSMMC_CON & RESERVED_MASK;
132 OMAP_HSMMC_CON = CTPL_MMC_SD | reg_val | WPP_ACTIVEHIGH |
133 CDP_ACTIVEHIGH | MIT_CTO | DW8_1_4BITMODE | MODE_FUNC |
134 STR_BLOCK | HR_NOHOSTRESP | INIT_NOINIT | NOOPENDRAIN;
136 mmc_clock_config(CLK_INITSEQ, 0);
137 OMAP_HSMMC_HCTL |= SDBP_PWRON;
139 OMAP_HSMMC_IE = 0x307f0033;
146 unsigned char mmc_send_cmd(unsigned int cmd, unsigned int arg,
147 unsigned int *response)
149 unsigned int mmc_stat;
151 while ((OMAP_HSMMC_PSTATE & DATI_MASK) == DATI_CMDDIS)
154 OMAP_HSMMC_BLK = BLEN_512BYTESLEN | NBLK_STPCNT;
155 OMAP_HSMMC_STAT = 0xFFFFFFFF;
156 OMAP_HSMMC_ARG = arg;
157 OMAP_HSMMC_CMD = cmd | CMD_TYPE_NORMAL | CICE_NOCHECK |
158 CCCE_NOCHECK | MSBS_SGLEBLK | ACEN_DISABLE | BCE_DISABLE |
162 mmc_stat = OMAP_HSMMC_STAT;
166 if ((mmc_stat & ERRI_MASK) != 0)
167 return (unsigned char) mmc_stat;
169 if (mmc_stat & CC_MASK) {
170 OMAP_HSMMC_STAT = CC_MASK;
171 response[0] = OMAP_HSMMC_RSP10;
172 if ((cmd & RSP_TYPE_MASK) == RSP_TYPE_LGHT136) {
173 response[1] = OMAP_HSMMC_RSP32;
174 response[2] = OMAP_HSMMC_RSP54;
175 response[3] = OMAP_HSMMC_RSP76;
183 unsigned char mmc_read_data(unsigned int *output_buf)
185 unsigned int mmc_stat;
186 unsigned int read_count = 0;
192 mmc_stat = OMAP_HSMMC_STAT;
196 if ((mmc_stat & ERRI_MASK) != 0)
197 return (unsigned char) mmc_stat;
199 if (mmc_stat & BRR_MASK) {
202 OMAP_HSMMC_STAT |= BRR_MASK;
203 for (k = 0; k < MMCSD_SECTOR_SIZE / 4; k++) {
204 *output_buf = OMAP_HSMMC_DATA;
210 if (mmc_stat & BWR_MASK)
211 OMAP_HSMMC_STAT |= BWR_MASK;
213 if (mmc_stat & TC_MASK) {
214 OMAP_HSMMC_STAT |= TC_MASK;
221 unsigned char mmc_detect_card(mmc_card_data *mmc_card_cur)
224 unsigned int argument = 0;
225 unsigned int ocr_value, ocr_recvd, ret_cmd41, hcs_val;
226 unsigned int resp[4];
227 unsigned short retry_cnt = 2000;
229 /* Set to Initialization Clock */
230 err = mmc_clock_config(CLK_400KHZ, 0);
234 mmc_card_cur->RCA = MMC_RELATIVE_CARD_ADDRESS;
235 argument = 0x00000000;
237 ocr_value = (0x1FF << 15);
238 err = mmc_send_cmd(MMC_CMD0, argument, resp);
242 argument = SD_CMD8_CHECK_PATTERN | SD_CMD8_2_7_3_6_V_RANGE;
243 err = mmc_send_cmd(MMC_SDCMD8, argument, resp);
244 hcs_val = (err == 1) ?
245 MMC_OCR_REG_HOST_CAPACITY_SUPPORT_SECTOR :
246 MMC_OCR_REG_HOST_CAPACITY_SUPPORT_BYTE;
248 argument = 0x0000 << 16;
249 err = mmc_send_cmd(MMC_CMD55, argument, resp);
251 mmc_card_cur->card_type = SD_CARD;
252 ocr_value |= hcs_val;
253 ret_cmd41 = MMC_ACMD41;
255 mmc_card_cur->card_type = MMC_CARD;
256 ocr_value |= MMC_OCR_REG_ACCESS_MODE_SECTOR;
257 ret_cmd41 = MMC_CMD1;
258 OMAP_HSMMC_CON &= ~OD;
259 OMAP_HSMMC_CON |= OPENDRAIN;
262 argument = ocr_value;
263 err = mmc_send_cmd(ret_cmd41, argument, resp);
267 ocr_recvd = ((mmc_resp_r3 *) resp)->ocr;
269 while (!(ocr_recvd & (0x1 << 31)) && (retry_cnt > 0)) {
271 if (mmc_card_cur->card_type == SD_CARD) {
272 argument = 0x0000 << 16;
273 err = mmc_send_cmd(MMC_CMD55, argument, resp);
276 argument = ocr_value;
277 err = mmc_send_cmd(ret_cmd41, argument, resp);
280 ocr_recvd = ((mmc_resp_r3 *) resp)->ocr;
283 if (!(ocr_recvd & (0x1 << 31)))
286 if (mmc_card_cur->card_type == MMC_CARD) {
287 if ((ocr_recvd & MMC_OCR_REG_ACCESS_MODE_MASK) ==
288 MMC_OCR_REG_ACCESS_MODE_SECTOR) {
289 mmc_card_cur->mode = SECTOR_MODE;
291 mmc_card_cur->mode = BYTE_MODE;
294 ocr_recvd &= ~MMC_OCR_REG_ACCESS_MODE_MASK;
296 if ((ocr_recvd & MMC_OCR_REG_HOST_CAPACITY_SUPPORT_MASK)
297 == MMC_OCR_REG_HOST_CAPACITY_SUPPORT_SECTOR) {
298 mmc_card_cur->mode = SECTOR_MODE;
300 mmc_card_cur->mode = BYTE_MODE;
302 ocr_recvd &= ~MMC_OCR_REG_HOST_CAPACITY_SUPPORT_MASK;
305 ocr_recvd &= ~(0x1 << 31);
306 if (!(ocr_recvd & ocr_value))
309 err = mmc_send_cmd(MMC_CMD2, argument, resp);
313 if (mmc_card_cur->card_type == MMC_CARD) {
314 argument = mmc_card_cur->RCA << 16;
315 err = mmc_send_cmd(MMC_CMD3, argument, resp);
319 argument = 0x00000000;
320 err = mmc_send_cmd(MMC_SDCMD3, argument, resp);
324 mmc_card_cur->RCA = ((mmc_resp_r6 *) resp)->newpublishedrca;
327 OMAP_HSMMC_CON &= ~OD;
328 OMAP_HSMMC_CON |= NOOPENDRAIN;
332 unsigned char mmc_read_cardsize(mmc_card_data *mmc_dev_data,
333 mmc_csd_reg_t *cur_csd)
335 mmc_extended_csd_reg_t ext_csd;
336 unsigned int size, count, blk_len, blk_no, card_size, argument;
338 unsigned int resp[4];
340 if (mmc_dev_data->mode == SECTOR_MODE) {
341 if (mmc_dev_data->card_type == SD_CARD) {
343 (((mmc_sd2_csd_reg_t *) cur_csd)->
344 c_size_lsb & MMC_SD2_CSD_C_SIZE_LSB_MASK) |
345 ((((mmc_sd2_csd_reg_t *) cur_csd)->
346 c_size_msb & MMC_SD2_CSD_C_SIZE_MSB_MASK)
347 << MMC_SD2_CSD_C_SIZE_MSB_OFFSET);
348 mmc_dev_data->size = card_size * 1024;
349 if (mmc_dev_data->size == 0)
352 argument = 0x00000000;
353 err = mmc_send_cmd(MMC_CMD8, argument, resp);
356 err = mmc_read_data((unsigned int *) &ext_csd);
359 mmc_dev_data->size = ext_csd.sectorcount;
361 if (mmc_dev_data->size == 0)
362 mmc_dev_data->size = 8388608;
365 if (cur_csd->c_size_mult >= 8)
368 if (cur_csd->read_bl_len >= 12)
372 count = 1 << (cur_csd->c_size_mult + 2);
373 card_size = (cur_csd->c_size_lsb & MMC_CSD_C_SIZE_LSB_MASK) |
374 ((cur_csd->c_size_msb & MMC_CSD_C_SIZE_MSB_MASK)
375 << MMC_CSD_C_SIZE_MSB_OFFSET);
376 blk_no = (card_size + 1) * count;
377 blk_len = 1 << cur_csd->read_bl_len;
378 size = blk_no * blk_len;
379 mmc_dev_data->size = size / MMCSD_SECTOR_SIZE;
380 if (mmc_dev_data->size == 0)
386 unsigned char omap_mmc_read_sect(unsigned int start_sec, unsigned int num_bytes,
387 mmc_card_data *mmc_c,
388 unsigned long *output_buf)
391 unsigned int argument;
392 unsigned int resp[4];
393 unsigned int num_sec_val =
394 (num_bytes + (MMCSD_SECTOR_SIZE - 1)) / MMCSD_SECTOR_SIZE;
395 unsigned int sec_inc_val;
397 if (num_sec_val == 0)
400 if (mmc_c->mode == SECTOR_MODE) {
401 argument = start_sec;
404 argument = start_sec * MMCSD_SECTOR_SIZE;
405 sec_inc_val = MMCSD_SECTOR_SIZE;
408 while (num_sec_val) {
409 err = mmc_send_cmd(MMC_CMD17, argument, resp);
413 err = mmc_read_data((unsigned int *) output_buf);
417 output_buf += (MMCSD_SECTOR_SIZE / 4);
418 argument += sec_inc_val;
424 unsigned char configure_mmc(mmc_card_data *mmc_card_cur)
426 unsigned char ret_val;
427 unsigned int argument;
428 unsigned int resp[4];
429 unsigned int trans_clk, trans_fact, trans_unit, retries = 2;
430 mmc_csd_reg_t Card_CSD;
431 unsigned char trans_speed;
433 ret_val = mmc_init_setup();
439 ret_val = mmc_detect_card(mmc_card_cur);
441 } while ((retries > 0) && (ret_val != 1));
443 argument = mmc_card_cur->RCA << 16;
444 ret_val = mmc_send_cmd(MMC_CMD9, argument, resp);
448 ((unsigned int *) &Card_CSD)[3] = resp[3];
449 ((unsigned int *) &Card_CSD)[2] = resp[2];
450 ((unsigned int *) &Card_CSD)[1] = resp[1];
451 ((unsigned int *) &Card_CSD)[0] = resp[0];
453 if (mmc_card_cur->card_type == MMC_CARD)
454 mmc_card_cur->version = Card_CSD.spec_vers;
456 trans_speed = Card_CSD.tran_speed;
458 ret_val = mmc_send_cmd(MMC_CMD4, MMC_DSR_DEFAULT << 16, resp);
462 trans_unit = trans_speed & MMC_CSD_TRAN_SPEED_UNIT_MASK;
463 trans_fact = trans_speed & MMC_CSD_TRAN_SPEED_FACTOR_MASK;
465 if (trans_unit > MMC_CSD_TRAN_SPEED_UNIT_100MHZ)
468 if ((trans_fact < MMC_CSD_TRAN_SPEED_FACTOR_1_0) ||
469 (trans_fact > MMC_CSD_TRAN_SPEED_FACTOR_8_0))
475 trans_clk = mmc_transspeed_val[trans_fact - 1][trans_unit] * 2;
476 ret_val = mmc_clock_config(CLK_MISC, trans_clk);
481 argument = mmc_card_cur->RCA << 16;
482 ret_val = mmc_send_cmd(MMC_CMD7_SELECT, argument, resp);
486 /* Configure the block length to 512 bytes */
487 argument = MMCSD_SECTOR_SIZE;
488 ret_val = mmc_send_cmd(MMC_CMD16, argument, resp);
492 /* get the card size in sectors */
493 ret_val = mmc_read_cardsize(mmc_card_cur, &Card_CSD);
499 unsigned long mmc_bread(int dev_num, unsigned long blknr, lbaint_t blkcnt,
502 omap_mmc_read_sect(blknr, (blkcnt * MMCSD_SECTOR_SIZE), &cur_card_data,
507 int mmc_init(int verbose)
509 unsigned char ret = configure_mmc(&cur_card_data);
514 mmc_blk_dev.if_type = IF_TYPE_MMC;
515 mmc_blk_dev.part_type = PART_TYPE_DOS;
518 mmc_blk_dev.type = 0;
520 /* FIXME fill in the correct size (is set to 32MByte) */
521 mmc_blk_dev.blksz = MMCSD_SECTOR_SIZE;
522 mmc_blk_dev.lba = 0x10000;
523 mmc_blk_dev.removable = 0;
524 mmc_blk_dev.block_read = mmc_bread;
526 fat_register_device(&mmc_blk_dev, 1);
531 int mmc_read(ulong src, uchar *dst, int size)
536 int mmc_write(uchar *src, ulong dst, int size)
541 int mmc2info(ulong addr)