Lines Matching full:card
19 #include <linux/mmc/card.h>
23 #include "card.h"
71 static int mmc_decode_cid(struct mmc_card *card) in mmc_decode_cid() argument
73 u32 *resp = card->raw_cid; in mmc_decode_cid()
76 * Add the raw card ID (cid) data to the entropy pool. It doesn't in mmc_decode_cid()
79 add_device_randomness(&card->raw_cid, sizeof(card->raw_cid)); in mmc_decode_cid()
85 switch (card->csd.mmca_vsn) { in mmc_decode_cid()
88 card->cid.manfid = UNSTUFF_BITS(resp, 104, 24); in mmc_decode_cid()
89 card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8); in mmc_decode_cid()
90 card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8); in mmc_decode_cid()
91 card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8); in mmc_decode_cid()
92 card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8); in mmc_decode_cid()
93 card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8); in mmc_decode_cid()
94 card->cid.prod_name[5] = UNSTUFF_BITS(resp, 56, 8); in mmc_decode_cid()
95 card->cid.prod_name[6] = UNSTUFF_BITS(resp, 48, 8); in mmc_decode_cid()
96 card->cid.hwrev = UNSTUFF_BITS(resp, 44, 4); in mmc_decode_cid()
97 card->cid.fwrev = UNSTUFF_BITS(resp, 40, 4); in mmc_decode_cid()
98 card->cid.serial = UNSTUFF_BITS(resp, 16, 24); in mmc_decode_cid()
99 card->cid.month = UNSTUFF_BITS(resp, 12, 4); in mmc_decode_cid()
100 card->cid.year = UNSTUFF_BITS(resp, 8, 4) + 1997; in mmc_decode_cid()
106 card->cid.manfid = UNSTUFF_BITS(resp, 120, 8); in mmc_decode_cid()
107 card->cid.oemid = UNSTUFF_BITS(resp, 104, 16); in mmc_decode_cid()
108 card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8); in mmc_decode_cid()
109 card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8); in mmc_decode_cid()
110 card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8); in mmc_decode_cid()
111 card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8); in mmc_decode_cid()
112 card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8); in mmc_decode_cid()
113 card->cid.prod_name[5] = UNSTUFF_BITS(resp, 56, 8); in mmc_decode_cid()
114 card->cid.prv = UNSTUFF_BITS(resp, 48, 8); in mmc_decode_cid()
115 card->cid.serial = UNSTUFF_BITS(resp, 16, 32); in mmc_decode_cid()
116 card->cid.month = UNSTUFF_BITS(resp, 12, 4); in mmc_decode_cid()
117 card->cid.year = UNSTUFF_BITS(resp, 8, 4) + 1997; in mmc_decode_cid()
121 pr_err("%s: card has unknown MMCA version %d\n", in mmc_decode_cid()
122 mmc_hostname(card->host), card->csd.mmca_vsn); in mmc_decode_cid()
129 static void mmc_set_erase_size(struct mmc_card *card) in mmc_set_erase_size() argument
131 if (card->ext_csd.erase_group_def & 1) in mmc_set_erase_size()
132 card->erase_size = card->ext_csd.hc_erase_size; in mmc_set_erase_size()
134 card->erase_size = card->csd.erase_size; in mmc_set_erase_size()
136 mmc_init_erase(card); in mmc_set_erase_size()
140 static void mmc_set_wp_grp_size(struct mmc_card *card) in mmc_set_wp_grp_size() argument
142 if (card->ext_csd.erase_group_def & 1) in mmc_set_wp_grp_size()
143 card->wp_grp_size = card->ext_csd.hc_erase_size * in mmc_set_wp_grp_size()
144 card->ext_csd.raw_hc_erase_gap_size; in mmc_set_wp_grp_size()
146 card->wp_grp_size = card->csd.erase_size * in mmc_set_wp_grp_size()
147 (card->csd.wp_grp_size + 1); in mmc_set_wp_grp_size()
151 * Given a 128-bit response, decode to our card CSD structure.
153 static int mmc_decode_csd(struct mmc_card *card) in mmc_decode_csd() argument
155 struct mmc_csd *csd = &card->csd; in mmc_decode_csd()
157 u32 *resp = card->raw_csd; in mmc_decode_csd()
167 mmc_hostname(card->host), csd->structure); in mmc_decode_csd()
206 static void mmc_select_card_type(struct mmc_card *card) in mmc_select_card_type() argument
208 struct mmc_host *host = card->host; in mmc_select_card_type()
209 u8 card_type = card->ext_csd.raw_card_type; in mmc_select_card_type()
263 card->ext_csd.strobe_support && in mmc_select_card_type()
267 card->ext_csd.hs_max_dtr = hs_max_dtr; in mmc_select_card_type()
268 card->ext_csd.hs200_max_dtr = hs200_max_dtr; in mmc_select_card_type()
269 card->mmc_avail_type = avail_type; in mmc_select_card_type()
272 static void mmc_manage_enhanced_area(struct mmc_card *card, u8 *ext_csd) in mmc_manage_enhanced_area() argument
279 card->ext_csd.enhanced_area_offset = -EINVAL; in mmc_manage_enhanced_area()
280 card->ext_csd.enhanced_area_size = -EINVAL; in mmc_manage_enhanced_area()
284 * card has the Enhanced area enabled. If so, export enhanced in mmc_manage_enhanced_area()
289 if (card->ext_csd.partition_setting_completed) { in mmc_manage_enhanced_area()
298 card->ext_csd.enhanced_area_offset = in mmc_manage_enhanced_area()
303 if (mmc_card_blockaddr(card)) in mmc_manage_enhanced_area()
304 card->ext_csd.enhanced_area_offset <<= 9; in mmc_manage_enhanced_area()
308 card->ext_csd.enhanced_area_size = in mmc_manage_enhanced_area()
311 card->ext_csd.enhanced_area_size *= in mmc_manage_enhanced_area()
313 card->ext_csd.enhanced_area_size <<= 9; in mmc_manage_enhanced_area()
316 mmc_hostname(card->host)); in mmc_manage_enhanced_area()
321 static void mmc_part_add(struct mmc_card *card, u64 size, in mmc_part_add() argument
325 card->part[card->nr_parts].size = size; in mmc_part_add()
326 card->part[card->nr_parts].part_cfg = part_cfg; in mmc_part_add()
327 sprintf(card->part[card->nr_parts].name, name, idx); in mmc_part_add()
328 card->part[card->nr_parts].force_ro = ro; in mmc_part_add()
329 card->part[card->nr_parts].area_type = area_type; in mmc_part_add()
330 card->nr_parts++; in mmc_part_add()
333 static void mmc_manage_gp_partitions(struct mmc_card *card, u8 *ext_csd) in mmc_manage_gp_partitions() argument
356 if (card->ext_csd.partition_setting_completed == 0) { in mmc_manage_gp_partitions()
358 mmc_hostname(card->host)); in mmc_manage_gp_partitions()
368 mmc_part_add(card, part_size << 19, in mmc_manage_gp_partitions()
382 static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) in mmc_decode_ext_csd() argument
390 card->ext_csd.raw_ext_csd_structure = ext_csd[EXT_CSD_STRUCTURE]; in mmc_decode_ext_csd()
391 if (card->csd.structure == 3) { in mmc_decode_ext_csd()
392 if (card->ext_csd.raw_ext_csd_structure > 2) { in mmc_decode_ext_csd()
394 "version %d\n", mmc_hostname(card->host), in mmc_decode_ext_csd()
395 card->ext_csd.raw_ext_csd_structure); in mmc_decode_ext_csd()
401 np = mmc_of_find_child_device(card->host, 0); in mmc_decode_ext_csd()
402 if (np && of_device_is_compatible(np, "mmc-card")) in mmc_decode_ext_csd()
411 card->ext_csd.rev = ext_csd[EXT_CSD_REV]; in mmc_decode_ext_csd()
414 mmc_fixup_device(card, mmc_ext_csd_fixups); in mmc_decode_ext_csd()
416 card->ext_csd.raw_sectors[0] = ext_csd[EXT_CSD_SEC_CNT + 0]; in mmc_decode_ext_csd()
417 card->ext_csd.raw_sectors[1] = ext_csd[EXT_CSD_SEC_CNT + 1]; in mmc_decode_ext_csd()
418 card->ext_csd.raw_sectors[2] = ext_csd[EXT_CSD_SEC_CNT + 2]; in mmc_decode_ext_csd()
419 card->ext_csd.raw_sectors[3] = ext_csd[EXT_CSD_SEC_CNT + 3]; in mmc_decode_ext_csd()
420 if (card->ext_csd.rev >= 2) { in mmc_decode_ext_csd()
421 card->ext_csd.sectors = in mmc_decode_ext_csd()
428 if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512) in mmc_decode_ext_csd()
429 mmc_card_set_blockaddr(card); in mmc_decode_ext_csd()
432 card->ext_csd.strobe_support = ext_csd[EXT_CSD_STROBE_SUPPORT]; in mmc_decode_ext_csd()
433 card->ext_csd.raw_card_type = ext_csd[EXT_CSD_CARD_TYPE]; in mmc_decode_ext_csd()
435 card->ext_csd.raw_s_a_timeout = ext_csd[EXT_CSD_S_A_TIMEOUT]; in mmc_decode_ext_csd()
436 card->ext_csd.raw_erase_timeout_mult = in mmc_decode_ext_csd()
438 card->ext_csd.raw_hc_erase_grp_size = in mmc_decode_ext_csd()
440 card->ext_csd.raw_boot_mult = in mmc_decode_ext_csd()
442 if (card->ext_csd.rev >= 3) { in mmc_decode_ext_csd()
444 card->ext_csd.part_config = ext_csd[EXT_CSD_PART_CONFIG]; in mmc_decode_ext_csd()
447 card->ext_csd.part_time = 10 * ext_csd[EXT_CSD_PART_SWITCH_TIME]; in mmc_decode_ext_csd()
451 card->ext_csd.sa_timeout = in mmc_decode_ext_csd()
453 card->ext_csd.erase_group_def = in mmc_decode_ext_csd()
455 card->ext_csd.hc_erase_timeout = 300 * in mmc_decode_ext_csd()
457 card->ext_csd.hc_erase_size = in mmc_decode_ext_csd()
460 card->ext_csd.rel_sectors = ext_csd[EXT_CSD_REL_WR_SEC_C]; in mmc_decode_ext_csd()
466 if (ext_csd[EXT_CSD_BOOT_MULT] && mmc_boot_partition_access(card->host)) { in mmc_decode_ext_csd()
469 mmc_part_add(card, part_size, in mmc_decode_ext_csd()
477 card->ext_csd.raw_hc_erase_gap_size = in mmc_decode_ext_csd()
479 card->ext_csd.raw_sec_trim_mult = in mmc_decode_ext_csd()
481 card->ext_csd.raw_sec_erase_mult = in mmc_decode_ext_csd()
483 card->ext_csd.raw_sec_feature_support = in mmc_decode_ext_csd()
485 card->ext_csd.raw_trim_mult = in mmc_decode_ext_csd()
487 card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT]; in mmc_decode_ext_csd()
488 card->ext_csd.raw_driver_strength = ext_csd[EXT_CSD_DRIVER_STRENGTH]; in mmc_decode_ext_csd()
489 if (card->ext_csd.rev >= 4) { in mmc_decode_ext_csd()
492 card->ext_csd.partition_setting_completed = 1; in mmc_decode_ext_csd()
494 card->ext_csd.partition_setting_completed = 0; in mmc_decode_ext_csd()
496 mmc_manage_enhanced_area(card, ext_csd); in mmc_decode_ext_csd()
498 mmc_manage_gp_partitions(card, ext_csd); in mmc_decode_ext_csd()
500 card->ext_csd.sec_trim_mult = in mmc_decode_ext_csd()
502 card->ext_csd.sec_erase_mult = in mmc_decode_ext_csd()
504 card->ext_csd.sec_feature_support = in mmc_decode_ext_csd()
506 card->ext_csd.trim_timeout = 300 * in mmc_decode_ext_csd()
514 card->ext_csd.boot_ro_lock = ext_csd[EXT_CSD_BOOT_WP]; in mmc_decode_ext_csd()
515 card->ext_csd.boot_ro_lockable = true; in mmc_decode_ext_csd()
518 card->ext_csd.raw_pwr_cl_52_195 = in mmc_decode_ext_csd()
520 card->ext_csd.raw_pwr_cl_26_195 = in mmc_decode_ext_csd()
522 card->ext_csd.raw_pwr_cl_52_360 = in mmc_decode_ext_csd()
524 card->ext_csd.raw_pwr_cl_26_360 = in mmc_decode_ext_csd()
526 card->ext_csd.raw_pwr_cl_200_195 = in mmc_decode_ext_csd()
528 card->ext_csd.raw_pwr_cl_200_360 = in mmc_decode_ext_csd()
530 card->ext_csd.raw_pwr_cl_ddr_52_195 = in mmc_decode_ext_csd()
532 card->ext_csd.raw_pwr_cl_ddr_52_360 = in mmc_decode_ext_csd()
534 card->ext_csd.raw_pwr_cl_ddr_200_360 = in mmc_decode_ext_csd()
538 if (card->ext_csd.rev >= 5) { in mmc_decode_ext_csd()
540 if (card->cid.year < 2010) in mmc_decode_ext_csd()
541 card->cid.year += 16; in mmc_decode_ext_csd()
543 /* check whether the eMMC card supports BKOPS */ in mmc_decode_ext_csd()
545 card->ext_csd.bkops = 1; in mmc_decode_ext_csd()
546 card->ext_csd.man_bkops_en = in mmc_decode_ext_csd()
549 card->ext_csd.raw_bkops_status = in mmc_decode_ext_csd()
551 if (card->ext_csd.man_bkops_en) in mmc_decode_ext_csd()
553 mmc_hostname(card->host)); in mmc_decode_ext_csd()
554 card->ext_csd.auto_bkops_en = in mmc_decode_ext_csd()
557 if (card->ext_csd.auto_bkops_en) in mmc_decode_ext_csd()
559 mmc_hostname(card->host)); in mmc_decode_ext_csd()
562 /* check whether the eMMC card supports HPI */ in mmc_decode_ext_csd()
563 if (!mmc_card_broken_hpi(card) && in mmc_decode_ext_csd()
565 card->ext_csd.hpi = 1; in mmc_decode_ext_csd()
567 card->ext_csd.hpi_cmd = MMC_STOP_TRANSMISSION; in mmc_decode_ext_csd()
569 card->ext_csd.hpi_cmd = MMC_SEND_STATUS; in mmc_decode_ext_csd()
574 card->ext_csd.out_of_int_time = in mmc_decode_ext_csd()
578 card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; in mmc_decode_ext_csd()
579 card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION]; in mmc_decode_ext_csd()
584 card->ext_csd.raw_rpmb_size_mult = ext_csd[EXT_CSD_RPMB_MULT]; in mmc_decode_ext_csd()
585 if (ext_csd[EXT_CSD_RPMB_MULT] && mmc_host_cmd23(card->host)) { in mmc_decode_ext_csd()
586 mmc_part_add(card, ext_csd[EXT_CSD_RPMB_MULT] << 17, in mmc_decode_ext_csd()
593 card->ext_csd.raw_erased_mem_count = ext_csd[EXT_CSD_ERASED_MEM_CONT]; in mmc_decode_ext_csd()
595 card->erased_byte = 0xFF; in mmc_decode_ext_csd()
597 card->erased_byte = 0x0; in mmc_decode_ext_csd()
600 card->ext_csd.generic_cmd6_time = DEFAULT_CMD6_TIMEOUT_MS; in mmc_decode_ext_csd()
601 if (card->ext_csd.rev >= 6) { in mmc_decode_ext_csd()
602 card->ext_csd.feature_support |= MMC_DISCARD_FEATURE; in mmc_decode_ext_csd()
604 card->ext_csd.generic_cmd6_time = 10 * in mmc_decode_ext_csd()
606 card->ext_csd.power_off_longtime = 10 * in mmc_decode_ext_csd()
609 card->ext_csd.cache_size = in mmc_decode_ext_csd()
616 card->ext_csd.data_sector_size = 4096; in mmc_decode_ext_csd()
618 card->ext_csd.data_sector_size = 512; in mmc_decode_ext_csd()
622 card->ext_csd.data_tag_unit_size = in mmc_decode_ext_csd()
624 (card->ext_csd.data_sector_size); in mmc_decode_ext_csd()
626 card->ext_csd.data_tag_unit_size = 0; in mmc_decode_ext_csd()
629 card->ext_csd.data_sector_size = 512; in mmc_decode_ext_csd()
637 if (!card->ext_csd.part_time) in mmc_decode_ext_csd()
638 card->ext_csd.part_time = card->ext_csd.generic_cmd6_time; in mmc_decode_ext_csd()
640 if (card->ext_csd.part_time < MMC_MIN_PART_SWITCH_TIME) in mmc_decode_ext_csd()
641 card->ext_csd.part_time = MMC_MIN_PART_SWITCH_TIME; in mmc_decode_ext_csd()
644 if (card->ext_csd.rev >= 7) { in mmc_decode_ext_csd()
645 memcpy(card->ext_csd.fwrev, &ext_csd[EXT_CSD_FIRMWARE_VERSION], in mmc_decode_ext_csd()
647 card->ext_csd.ffu_capable = in mmc_decode_ext_csd()
651 card->ext_csd.pre_eol_info = ext_csd[EXT_CSD_PRE_EOL_INFO]; in mmc_decode_ext_csd()
652 card->ext_csd.device_life_time_est_typ_a = in mmc_decode_ext_csd()
654 card->ext_csd.device_life_time_est_typ_b = in mmc_decode_ext_csd()
659 if (card->ext_csd.rev >= 8) { in mmc_decode_ext_csd()
660 card->ext_csd.cmdq_support = ext_csd[EXT_CSD_CMDQ_SUPPORT] & in mmc_decode_ext_csd()
662 card->ext_csd.cmdq_depth = (ext_csd[EXT_CSD_CMDQ_DEPTH] & in mmc_decode_ext_csd()
665 if (card->ext_csd.cmdq_depth <= 2) { in mmc_decode_ext_csd()
666 card->ext_csd.cmdq_support = false; in mmc_decode_ext_csd()
667 card->ext_csd.cmdq_depth = 0; in mmc_decode_ext_csd()
669 if (card->ext_csd.cmdq_support) { in mmc_decode_ext_csd()
671 mmc_hostname(card->host), in mmc_decode_ext_csd()
672 card->ext_csd.cmdq_depth); in mmc_decode_ext_csd()
674 card->ext_csd.enhanced_rpmb_supported = in mmc_decode_ext_csd()
675 (card->ext_csd.rel_param & in mmc_decode_ext_csd()
682 static int mmc_read_ext_csd(struct mmc_card *card) in mmc_read_ext_csd() argument
687 if (!mmc_can_ext_csd(card)) in mmc_read_ext_csd()
690 err = mmc_get_ext_csd(card, &ext_csd); in mmc_read_ext_csd()
692 /* If the host or the card can't do the switch, in mmc_read_ext_csd()
703 if (card->csd.capacity == (4096 * 512)) { in mmc_read_ext_csd()
704 pr_err("%s: unable to read EXT_CSD on a possible high capacity card. Card will be ignored.\n", in mmc_read_ext_csd()
705 mmc_hostname(card->host)); in mmc_read_ext_csd()
708 mmc_hostname(card->host)); in mmc_read_ext_csd()
715 err = mmc_decode_ext_csd(card, ext_csd); in mmc_read_ext_csd()
720 static int mmc_compare_ext_csds(struct mmc_card *card, unsigned bus_width) in mmc_compare_ext_csds() argument
728 err = mmc_get_ext_csd(card, &bw_ext_csd); in mmc_compare_ext_csds()
733 err = !((card->ext_csd.raw_partition_support == in mmc_compare_ext_csds()
735 (card->ext_csd.raw_erased_mem_count == in mmc_compare_ext_csds()
737 (card->ext_csd.rev == in mmc_compare_ext_csds()
739 (card->ext_csd.raw_ext_csd_structure == in mmc_compare_ext_csds()
741 (card->ext_csd.raw_card_type == in mmc_compare_ext_csds()
743 (card->ext_csd.raw_s_a_timeout == in mmc_compare_ext_csds()
745 (card->ext_csd.raw_hc_erase_gap_size == in mmc_compare_ext_csds()
747 (card->ext_csd.raw_erase_timeout_mult == in mmc_compare_ext_csds()
749 (card->ext_csd.raw_hc_erase_grp_size == in mmc_compare_ext_csds()
751 (card->ext_csd.raw_sec_trim_mult == in mmc_compare_ext_csds()
753 (card->ext_csd.raw_sec_erase_mult == in mmc_compare_ext_csds()
755 (card->ext_csd.raw_sec_feature_support == in mmc_compare_ext_csds()
757 (card->ext_csd.raw_trim_mult == in mmc_compare_ext_csds()
759 (card->ext_csd.raw_sectors[0] == in mmc_compare_ext_csds()
761 (card->ext_csd.raw_sectors[1] == in mmc_compare_ext_csds()
763 (card->ext_csd.raw_sectors[2] == in mmc_compare_ext_csds()
765 (card->ext_csd.raw_sectors[3] == in mmc_compare_ext_csds()
767 (card->ext_csd.raw_pwr_cl_52_195 == in mmc_compare_ext_csds()
769 (card->ext_csd.raw_pwr_cl_26_195 == in mmc_compare_ext_csds()
771 (card->ext_csd.raw_pwr_cl_52_360 == in mmc_compare_ext_csds()
773 (card->ext_csd.raw_pwr_cl_26_360 == in mmc_compare_ext_csds()
775 (card->ext_csd.raw_pwr_cl_200_195 == in mmc_compare_ext_csds()
777 (card->ext_csd.raw_pwr_cl_200_360 == in mmc_compare_ext_csds()
779 (card->ext_csd.raw_pwr_cl_ddr_52_195 == in mmc_compare_ext_csds()
781 (card->ext_csd.raw_pwr_cl_ddr_52_360 == in mmc_compare_ext_csds()
783 (card->ext_csd.raw_pwr_cl_ddr_200_360 == in mmc_compare_ext_csds()
793 MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
794 card->raw_cid[2], card->raw_cid[3]);
795 MMC_DEV_ATTR(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1],
796 card->raw_csd[2], card->raw_csd[3]);
797 MMC_DEV_ATTR(date, "%02d/%04d\n", card->cid.month, card->cid.year);
798 MMC_DEV_ATTR(erase_size, "%u\n", card->erase_size << 9);
799 MMC_DEV_ATTR(preferred_erase_size, "%u\n", card->pref_erase << 9);
800 MMC_DEV_ATTR(wp_grp_size, "%u\n", card->wp_grp_size << 9);
801 MMC_DEV_ATTR(ffu_capable, "%d\n", card->ext_csd.ffu_capable);
802 MMC_DEV_ATTR(hwrev, "0x%x\n", card->cid.hwrev);
803 MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
804 MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
805 MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
806 MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv);
807 MMC_DEV_ATTR(rev, "0x%x\n", card->ext_csd.rev);
808 MMC_DEV_ATTR(pre_eol_info, "0x%02x\n", card->ext_csd.pre_eol_info);
810 card->ext_csd.device_life_time_est_typ_a,
811 card->ext_csd.device_life_time_est_typ_b);
812 MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial);
814 card->ext_csd.enhanced_area_offset);
815 MMC_DEV_ATTR(enhanced_area_size, "%u\n", card->ext_csd.enhanced_area_size);
816 MMC_DEV_ATTR(raw_rpmb_size_mult, "%#x\n", card->ext_csd.raw_rpmb_size_mult);
818 card->ext_csd.enhanced_rpmb_supported);
819 MMC_DEV_ATTR(rel_sectors, "%#x\n", card->ext_csd.rel_sectors);
820 MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr);
821 MMC_DEV_ATTR(rca, "0x%04x\n", card->rca);
822 MMC_DEV_ATTR(cmdq_en, "%d\n", card->ext_csd.cmdq_en);
828 struct mmc_card *card = mmc_dev_to_card(dev); in mmc_fwrev_show() local
830 if (card->ext_csd.rev < 7) in mmc_fwrev_show()
831 return sysfs_emit(buf, "0x%x\n", card->cid.fwrev); in mmc_fwrev_show()
834 card->ext_csd.fwrev); in mmc_fwrev_show()
843 struct mmc_card *card = mmc_dev_to_card(dev); in mmc_dsr_show() local
844 struct mmc_host *host = card->host; in mmc_dsr_show()
846 if (card->csd.dsr_imp && host->dsr_req) in mmc_dsr_show()
896 static int __mmc_select_powerclass(struct mmc_card *card, in __mmc_select_powerclass() argument
899 struct mmc_host *host = card->host; in __mmc_select_powerclass()
900 struct mmc_ext_csd *ext_csd = &card->ext_csd; in __mmc_select_powerclass()
950 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in __mmc_select_powerclass()
953 card->ext_csd.generic_cmd6_time); in __mmc_select_powerclass()
959 static int mmc_select_powerclass(struct mmc_card *card) in mmc_select_powerclass() argument
961 struct mmc_host *host = card->host; in mmc_select_powerclass()
966 if (!mmc_can_ext_csd(card)) in mmc_select_powerclass()
974 ddr = card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_52; in mmc_select_powerclass()
982 err = __mmc_select_powerclass(card, ext_csd_bits); in mmc_select_powerclass()
993 static void mmc_set_bus_speed(struct mmc_card *card) in mmc_set_bus_speed() argument
997 if ((mmc_card_hs200(card) || mmc_card_hs400(card)) && in mmc_set_bus_speed()
998 max_dtr > card->ext_csd.hs200_max_dtr) in mmc_set_bus_speed()
999 max_dtr = card->ext_csd.hs200_max_dtr; in mmc_set_bus_speed()
1000 else if (mmc_card_hs(card) && max_dtr > card->ext_csd.hs_max_dtr) in mmc_set_bus_speed()
1001 max_dtr = card->ext_csd.hs_max_dtr; in mmc_set_bus_speed()
1002 else if (max_dtr > card->csd.max_dtr) in mmc_set_bus_speed()
1003 max_dtr = card->csd.max_dtr; in mmc_set_bus_speed()
1005 mmc_set_clock(card->host, max_dtr); in mmc_set_bus_speed()
1013 static int mmc_select_bus_width(struct mmc_card *card) in mmc_select_bus_width() argument
1025 struct mmc_host *host = card->host; in mmc_select_bus_width()
1029 if (!mmc_can_ext_csd(card) || in mmc_select_bus_width()
1049 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_bus_width()
1052 card->ext_csd.generic_cmd6_time); in mmc_select_bus_width()
1065 err = mmc_compare_ext_csds(card, bus_width); in mmc_select_bus_width()
1067 err = mmc_bus_test(card, bus_width); in mmc_select_bus_width()
1084 static int mmc_select_hs(struct mmc_card *card) in mmc_select_hs() argument
1088 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs()
1090 card->ext_csd.generic_cmd6_time, MMC_TIMING_MMC_HS, in mmc_select_hs()
1094 mmc_hostname(card->host), err); in mmc_select_hs()
1102 static int mmc_select_hs_ddr(struct mmc_card *card) in mmc_select_hs_ddr() argument
1104 struct mmc_host *host = card->host; in mmc_select_hs_ddr()
1108 if (!(card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_52)) in mmc_select_hs_ddr()
1118 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs_ddr()
1121 card->ext_csd.generic_cmd6_time, in mmc_select_hs_ddr()
1139 * Even (e)MMC card can support 3.3v to 1.2v vccq, but not all in mmc_select_hs_ddr()
1155 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_1_2V) { in mmc_select_hs_ddr()
1161 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_1_8V && in mmc_select_hs_ddr()
1172 static int mmc_select_hs400(struct mmc_card *card) in mmc_select_hs400() argument
1174 struct mmc_host *host = card->host; in mmc_select_hs400()
1182 if (!(card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400 && in mmc_select_hs400()
1186 /* Switch card to HS mode */ in mmc_select_hs400()
1188 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400()
1190 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400()
1206 max_dtr = card->ext_csd.hs_max_dtr; in mmc_select_hs400()
1209 err = mmc_switch_status(card, true); in mmc_select_hs400()
1216 /* Switch card to DDR */ in mmc_select_hs400()
1217 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400()
1220 card->ext_csd.generic_cmd6_time); in mmc_select_hs400()
1227 /* Switch card to HS400 */ in mmc_select_hs400()
1229 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_select_hs400()
1230 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400()
1232 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400()
1242 mmc_set_bus_speed(card); in mmc_select_hs400()
1246 err = host->ops->execute_hs400_tuning(host, card); in mmc_select_hs400()
1255 err = mmc_switch_status(card, true); in mmc_select_hs400()
1262 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_select_hs400()
1267 int mmc_hs200_to_hs400(struct mmc_card *card) in mmc_hs200_to_hs400() argument
1269 return mmc_select_hs400(card); in mmc_hs200_to_hs400()
1272 int mmc_hs400_to_hs200(struct mmc_card *card) in mmc_hs400_to_hs200() argument
1274 struct mmc_host *host = card->host; in mmc_hs400_to_hs200()
1280 max_dtr = card->ext_csd.hs_max_dtr; in mmc_hs400_to_hs200()
1285 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, in mmc_hs400_to_hs200()
1286 val, card->ext_csd.generic_cmd6_time, 0, in mmc_hs400_to_hs200()
1296 err = mmc_switch_status(card, true); in mmc_hs400_to_hs200()
1301 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, in mmc_hs400_to_hs200()
1302 EXT_CSD_BUS_WIDTH_8, card->ext_csd.generic_cmd6_time, in mmc_hs400_to_hs200()
1309 err = mmc_switch_status(card, true); in mmc_hs400_to_hs200()
1315 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_hs400_to_hs200()
1316 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, in mmc_hs400_to_hs200()
1317 val, card->ext_csd.generic_cmd6_time, 0, in mmc_hs400_to_hs200()
1329 err = mmc_switch_status(card, false); in mmc_hs400_to_hs200()
1333 mmc_set_bus_speed(card); in mmc_hs400_to_hs200()
1342 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_hs400_to_hs200()
1347 static void mmc_select_driver_type(struct mmc_card *card) in mmc_select_driver_type() argument
1350 int fixed_drv_type = card->host->fixed_drv_type; in mmc_select_driver_type()
1352 card_drv_type = card->ext_csd.raw_driver_strength | in mmc_select_driver_type()
1359 drive_strength = mmc_select_drive_strength(card, in mmc_select_driver_type()
1360 card->ext_csd.hs200_max_dtr, in mmc_select_driver_type()
1363 card->drive_strength = drive_strength; in mmc_select_driver_type()
1366 mmc_set_driver_type(card->host, drv_type); in mmc_select_driver_type()
1369 static int mmc_select_hs400es(struct mmc_card *card) in mmc_select_hs400es() argument
1371 struct mmc_host *host = card->host; in mmc_select_hs400es()
1375 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V) in mmc_select_hs400es()
1378 if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_8V) in mmc_select_hs400es()
1381 /* If fails try again during next card power cycle */ in mmc_select_hs400es()
1385 err = mmc_select_bus_width(card); in mmc_select_hs400es()
1393 /* Switch card to HS mode */ in mmc_select_hs400es()
1394 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400es()
1396 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400es()
1409 mmc_set_bus_speed(card); in mmc_select_hs400es()
1411 err = mmc_switch_status(card, true); in mmc_select_hs400es()
1415 /* Switch card to DDR with strobe bit */ in mmc_select_hs400es()
1417 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400es()
1420 card->ext_csd.generic_cmd6_time); in mmc_select_hs400es()
1427 mmc_select_driver_type(card); in mmc_select_hs400es()
1429 /* Switch card to HS400 */ in mmc_select_hs400es()
1431 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_select_hs400es()
1432 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400es()
1434 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400es()
1450 err = mmc_switch_status(card, true); in mmc_select_hs400es()
1457 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_select_hs400es()
1469 static int mmc_select_hs200(struct mmc_card *card) in mmc_select_hs200() argument
1471 struct mmc_host *host = card->host; in mmc_select_hs200()
1477 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_2V) in mmc_select_hs200()
1480 if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_8V) in mmc_select_hs200()
1483 /* If fails try again during next card power cycle */ in mmc_select_hs200()
1487 mmc_select_driver_type(card); in mmc_select_hs200()
1493 err = mmc_select_bus_width(card); in mmc_select_hs200()
1496 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_select_hs200()
1497 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs200()
1499 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs200()
1513 mmc_set_clock(card->host, card->ext_csd.hs_max_dtr); in mmc_select_hs200()
1520 err = mmc_switch_status(card, false); in mmc_select_hs200()
1537 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_select_hs200()
1546 static int mmc_select_timing(struct mmc_card *card) in mmc_select_timing() argument
1550 if (!mmc_can_ext_csd(card)) in mmc_select_timing()
1553 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400ES) { in mmc_select_timing()
1554 err = mmc_select_hs400es(card); in mmc_select_timing()
1558 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200) { in mmc_select_timing()
1559 err = mmc_select_hs200(card); in mmc_select_timing()
1561 card->mmc_avail_type &= ~EXT_CSD_CARD_TYPE_HS200; in mmc_select_timing()
1566 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS) in mmc_select_timing()
1567 err = mmc_select_hs(card); in mmc_select_timing()
1578 mmc_set_bus_speed(card); in mmc_select_timing()
1586 static int mmc_hs200_tuning(struct mmc_card *card) in mmc_hs200_tuning() argument
1588 struct mmc_host *host = card->host; in mmc_hs200_tuning()
1594 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400 && in mmc_hs200_tuning()
1599 return mmc_execute_tuning(card); in mmc_hs200_tuning()
1603 * Handle the detection and initialisation of a card.
1605 * In the case of a resume, "oldcard" will contain the card
1611 struct mmc_card *card; in mmc_init_card() local
1646 * Fetch CID from card. in mmc_init_card()
1654 pr_debug("%s: Perhaps the card was replaced\n", in mmc_init_card()
1660 card = oldcard; in mmc_init_card()
1663 * Allocate card structure. in mmc_init_card()
1665 card = mmc_alloc_card(host, &mmc_type); in mmc_init_card()
1666 if (IS_ERR(card)) { in mmc_init_card()
1667 err = PTR_ERR(card); in mmc_init_card()
1671 card->ocr = ocr; in mmc_init_card()
1672 card->type = MMC_TYPE_MMC; in mmc_init_card()
1673 card->rca = 1; in mmc_init_card()
1674 memcpy(card->raw_cid, cid, sizeof(card->raw_cid)); in mmc_init_card()
1681 host->ops->init_card(host, card); in mmc_init_card()
1684 * For native busses: set card RCA and quit open drain mode. in mmc_init_card()
1687 err = mmc_set_relative_addr(card); in mmc_init_card()
1696 * Fetch CSD from card. in mmc_init_card()
1698 err = mmc_send_csd(card, card->raw_csd); in mmc_init_card()
1702 err = mmc_decode_csd(card); in mmc_init_card()
1705 err = mmc_decode_cid(card); in mmc_init_card()
1714 if (card->csd.dsr_imp && host->dsr_req) in mmc_init_card()
1718 * Select card, as all following commands rely on that. in mmc_init_card()
1721 err = mmc_select_card(card); in mmc_init_card()
1728 err = mmc_read_ext_csd(card); in mmc_init_card()
1739 mmc_card_set_blockaddr(card); in mmc_init_card()
1742 mmc_set_erase_size(card); in mmc_init_card()
1746 * Reselect the card type since host caps could have been changed when in mmc_init_card()
1747 * debugging even if the card is not new. in mmc_init_card()
1749 mmc_select_card_type(card); in mmc_init_card()
1752 if (card->ext_csd.rev >= 3) { in mmc_init_card()
1753 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1755 card->ext_csd.generic_cmd6_time); in mmc_init_card()
1766 card->ext_csd.enhanced_area_offset = -EINVAL; in mmc_init_card()
1767 card->ext_csd.enhanced_area_size = -EINVAL; in mmc_init_card()
1769 card->ext_csd.erase_group_def = 1; in mmc_init_card()
1775 mmc_set_erase_size(card); in mmc_init_card()
1778 mmc_set_wp_grp_size(card); in mmc_init_card()
1782 if (card->ext_csd.part_config & EXT_CSD_PART_CONFIG_ACC_MASK) { in mmc_init_card()
1783 card->ext_csd.part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK; in mmc_init_card()
1784 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONFIG, in mmc_init_card()
1785 card->ext_csd.part_config, in mmc_init_card()
1786 card->ext_csd.part_time); in mmc_init_card()
1794 if (card->ext_csd.rev >= 6) { in mmc_init_card()
1795 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1798 card->ext_csd.generic_cmd6_time); in mmc_init_card()
1807 card->ext_csd.power_off_notification = EXT_CSD_POWER_ON; in mmc_init_card()
1811 if (mmc_can_discard(card)) in mmc_init_card()
1812 card->erase_arg = MMC_DISCARD_ARG; in mmc_init_card()
1813 else if (mmc_can_trim(card)) in mmc_init_card()
1814 card->erase_arg = MMC_TRIM_ARG; in mmc_init_card()
1816 card->erase_arg = MMC_ERASE_ARG; in mmc_init_card()
1821 err = mmc_select_timing(card); in mmc_init_card()
1825 if (mmc_card_hs200(card)) { in mmc_init_card()
1828 err = mmc_hs200_tuning(card); in mmc_init_card()
1830 err = mmc_select_hs400(card); in mmc_init_card()
1836 } else if (mmc_card_hs400es(card)) { in mmc_init_card()
1838 err = host->ops->execute_hs400_tuning(host, card); in mmc_init_card()
1844 err = mmc_select_bus_width(card); in mmc_init_card()
1845 if (err > 0 && mmc_card_hs(card)) { in mmc_init_card()
1846 err = mmc_select_hs_ddr(card); in mmc_init_card()
1855 mmc_select_powerclass(card); in mmc_init_card()
1860 if (card->ext_csd.hpi) { in mmc_init_card()
1861 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1863 card->ext_csd.generic_cmd6_time); in mmc_init_card()
1868 mmc_hostname(card->host)); in mmc_init_card()
1869 card->ext_csd.hpi_en = 0; in mmc_init_card()
1871 card->ext_csd.hpi_en = 1; in mmc_init_card()
1882 if (card->ext_csd.cache_size > 0) { in mmc_init_card()
1885 timeout_ms = max(card->ext_csd.generic_cmd6_time, timeout_ms); in mmc_init_card()
1886 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1896 mmc_hostname(card->host), err); in mmc_init_card()
1897 card->ext_csd.cache_ctrl = 0; in mmc_init_card()
1899 card->ext_csd.cache_ctrl = 1; in mmc_init_card()
1907 card->ext_csd.cmdq_en = false; in mmc_init_card()
1908 if (card->ext_csd.cmdq_support && host->caps2 & MMC_CAP2_CQE) { in mmc_init_card()
1909 err = mmc_cmdq_enable(card); in mmc_init_card()
1914 mmc_hostname(card->host)); in mmc_init_card()
1915 card->ext_csd.cmdq_support = false; in mmc_init_card()
1916 card->ext_csd.cmdq_depth = 0; in mmc_init_card()
1924 card->reenable_cmdq = card->ext_csd.cmdq_en; in mmc_init_card()
1927 err = host->cqe_ops->cqe_enable(host, card); in mmc_init_card()
1931 if (card->ext_csd.cmdq_en) { in mmc_init_card()
1951 host->card = card; in mmc_init_card()
1957 mmc_remove_card(card); in mmc_init_card()
1962 static int mmc_can_sleep(struct mmc_card *card) in mmc_can_sleep() argument
1964 return card->ext_csd.rev >= 3; in mmc_can_sleep()
1978 struct mmc_card *card = host->card; in mmc_sleep() local
1979 unsigned int timeout_ms = DIV_ROUND_UP(card->ext_csd.sa_timeout, 10000); in mmc_sleep()
1983 /* Re-tuning can't be done once the card is deselected */ in mmc_sleep()
1991 cmd.arg = card->rca << 16; in mmc_sleep()
2000 * If the host does not wait while the card signals busy, then we can in mmc_sleep()
2020 static int mmc_can_poweroff_notify(const struct mmc_card *card) in mmc_can_poweroff_notify() argument
2022 return card && in mmc_can_poweroff_notify()
2023 mmc_card_mmc(card) && in mmc_can_poweroff_notify()
2024 (card->ext_csd.power_off_notification == EXT_CSD_POWER_ON); in mmc_can_poweroff_notify()
2027 static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type) in mmc_poweroff_notify() argument
2029 unsigned int timeout = card->ext_csd.generic_cmd6_time; in mmc_poweroff_notify()
2034 timeout = card->ext_csd.power_off_longtime; in mmc_poweroff_notify()
2036 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_poweroff_notify()
2041 mmc_hostname(card->host), timeout); in mmc_poweroff_notify()
2044 card->ext_csd.power_off_notification = EXT_CSD_NO_POWER_NOTIFICATION; in mmc_poweroff_notify()
2050 * Host is being removed. Free up the current card.
2054 mmc_remove_card(host->card); in mmc_remove()
2055 host->card = NULL; in mmc_remove()
2059 * Card detection - card is alive.
2063 return mmc_send_status(host->card, NULL); in mmc_alive()
2067 * Card detection callback from host.
2073 mmc_get_card(host->card, NULL); in mmc_detect()
2076 * Just check if our card has been removed. in mmc_detect()
2080 mmc_put_card(host->card, NULL); in mmc_detect()
2094 return host->card->ext_csd.cache_size > 0 && in _mmc_cache_enabled()
2095 host->card->ext_csd.cache_ctrl & 1; in _mmc_cache_enabled()
2105 if (mmc_card_broken_cache_flush(host->card) && !host->card->written_flag) in _mmc_flush_cache()
2109 err = mmc_switch(host->card, EXT_CSD_CMD_SET_NORMAL, in _mmc_flush_cache()
2115 host->card->written_flag = false; in _mmc_flush_cache()
2129 if (mmc_card_suspended(host->card)) in _mmc_suspend()
2136 if (mmc_can_poweroff_notify(host->card) && in _mmc_suspend()
2139 err = mmc_poweroff_notify(host->card, notify_type); in _mmc_suspend()
2140 else if (mmc_can_sleep(host->card)) in _mmc_suspend()
2147 mmc_card_set_suspended(host->card); in _mmc_suspend()
2163 pm_runtime_disable(&host->card->dev); in mmc_suspend()
2164 pm_runtime_set_suspended(&host->card->dev); in mmc_suspend()
2171 * This function tries to determine if the same card is still present
2180 if (!mmc_card_suspended(host->card)) in _mmc_resume()
2183 mmc_power_up(host, host->card->ocr); in _mmc_resume()
2184 err = mmc_init_card(host, host->card->ocr, host->card); in _mmc_resume()
2185 mmc_card_clr_suspended(host->card); in _mmc_resume()
2200 * In a specific case for poweroff notify, we need to resume the card in mmc_shutdown()
2203 if (mmc_can_poweroff_notify(host->card) && in mmc_shutdown()
2218 pm_runtime_enable(&host->card->dev); in mmc_resume()
2255 static int mmc_can_reset(struct mmc_card *card) in mmc_can_reset() argument
2259 rst_n_function = card->ext_csd.rst_n_function; in mmc_can_reset()
2267 struct mmc_card *card = host->card; in _mmc_hw_reset() local
2276 mmc_can_reset(card)) { in _mmc_hw_reset()
2277 /* If the card accept RST_n signal, send it. */ in _mmc_hw_reset()
2284 mmc_power_cycle(host, card->ocr); in _mmc_hw_reset()
2287 return mmc_init_card(host, card->ocr, card); in _mmc_hw_reset()
2305 * Starting point for MMC card init.
2338 * Can we support the voltage of the card? in mmc_attach_mmc()
2346 * Detect and init the card. in mmc_attach_mmc()
2353 err = mmc_add_card(host->card); in mmc_attach_mmc()
2361 mmc_remove_card(host->card); in mmc_attach_mmc()
2363 host->card = NULL; in mmc_attach_mmc()
2367 pr_err("%s: error %d whilst initialising MMC card\n", in mmc_attach_mmc()