Lines Matching full:card
20 #include <linux/mmc/card.h>
24 #include "card.h"
58 static int mmc_decode_cid(struct mmc_card *card) in mmc_decode_cid() argument
60 u32 *resp = card->raw_cid; in mmc_decode_cid()
63 * Add the raw card ID (cid) data to the entropy pool. It doesn't in mmc_decode_cid()
66 add_device_randomness(&card->raw_cid, sizeof(card->raw_cid)); in mmc_decode_cid()
72 switch (card->csd.mmca_vsn) { in mmc_decode_cid()
75 card->cid.manfid = unstuff_bits(resp, 104, 24); in mmc_decode_cid()
76 card->cid.prod_name[0] = unstuff_bits(resp, 96, 8); in mmc_decode_cid()
77 card->cid.prod_name[1] = unstuff_bits(resp, 88, 8); in mmc_decode_cid()
78 card->cid.prod_name[2] = unstuff_bits(resp, 80, 8); in mmc_decode_cid()
79 card->cid.prod_name[3] = unstuff_bits(resp, 72, 8); in mmc_decode_cid()
80 card->cid.prod_name[4] = unstuff_bits(resp, 64, 8); in mmc_decode_cid()
81 card->cid.prod_name[5] = unstuff_bits(resp, 56, 8); in mmc_decode_cid()
82 card->cid.prod_name[6] = unstuff_bits(resp, 48, 8); in mmc_decode_cid()
83 card->cid.hwrev = unstuff_bits(resp, 44, 4); in mmc_decode_cid()
84 card->cid.fwrev = unstuff_bits(resp, 40, 4); in mmc_decode_cid()
85 card->cid.serial = unstuff_bits(resp, 16, 24); in mmc_decode_cid()
86 card->cid.month = unstuff_bits(resp, 12, 4); in mmc_decode_cid()
87 card->cid.year = unstuff_bits(resp, 8, 4) + 1997; in mmc_decode_cid()
93 card->cid.manfid = unstuff_bits(resp, 120, 8); in mmc_decode_cid()
94 card->cid.oemid = unstuff_bits(resp, 104, 16); in mmc_decode_cid()
95 card->cid.prod_name[0] = unstuff_bits(resp, 96, 8); in mmc_decode_cid()
96 card->cid.prod_name[1] = unstuff_bits(resp, 88, 8); in mmc_decode_cid()
97 card->cid.prod_name[2] = unstuff_bits(resp, 80, 8); in mmc_decode_cid()
98 card->cid.prod_name[3] = unstuff_bits(resp, 72, 8); in mmc_decode_cid()
99 card->cid.prod_name[4] = unstuff_bits(resp, 64, 8); in mmc_decode_cid()
100 card->cid.prod_name[5] = unstuff_bits(resp, 56, 8); in mmc_decode_cid()
101 card->cid.prv = unstuff_bits(resp, 48, 8); in mmc_decode_cid()
102 card->cid.serial = unstuff_bits(resp, 16, 32); in mmc_decode_cid()
103 card->cid.month = unstuff_bits(resp, 12, 4); in mmc_decode_cid()
104 card->cid.year = unstuff_bits(resp, 8, 4) + 1997; in mmc_decode_cid()
108 pr_err("%s: card has unknown MMCA version %d\n", in mmc_decode_cid()
109 mmc_hostname(card->host), card->csd.mmca_vsn); in mmc_decode_cid()
114 strim(card->cid.prod_name); in mmc_decode_cid()
119 static void mmc_set_erase_size(struct mmc_card *card) in mmc_set_erase_size() argument
121 if (card->ext_csd.erase_group_def & 1) in mmc_set_erase_size()
122 card->erase_size = card->ext_csd.hc_erase_size; in mmc_set_erase_size()
124 card->erase_size = card->csd.erase_size; in mmc_set_erase_size()
126 mmc_init_erase(card); in mmc_set_erase_size()
130 static void mmc_set_wp_grp_size(struct mmc_card *card) in mmc_set_wp_grp_size() argument
132 if (card->ext_csd.erase_group_def & 1) in mmc_set_wp_grp_size()
133 card->wp_grp_size = card->ext_csd.hc_erase_size * in mmc_set_wp_grp_size()
134 card->ext_csd.raw_hc_erase_gap_size; in mmc_set_wp_grp_size()
136 card->wp_grp_size = card->csd.erase_size * in mmc_set_wp_grp_size()
137 (card->csd.wp_grp_size + 1); in mmc_set_wp_grp_size()
141 * Given a 128-bit response, decode to our card CSD structure.
143 static int mmc_decode_csd(struct mmc_card *card) in mmc_decode_csd() argument
145 struct mmc_csd *csd = &card->csd; in mmc_decode_csd()
147 u32 *resp = card->raw_csd; in mmc_decode_csd()
157 mmc_hostname(card->host), csd->structure); in mmc_decode_csd()
196 static void mmc_select_card_type(struct mmc_card *card) in mmc_select_card_type() argument
198 struct mmc_host *host = card->host; in mmc_select_card_type()
199 u8 card_type = card->ext_csd.raw_card_type; in mmc_select_card_type()
253 card->ext_csd.strobe_support && in mmc_select_card_type()
257 card->ext_csd.hs_max_dtr = hs_max_dtr; in mmc_select_card_type()
258 card->ext_csd.hs200_max_dtr = hs200_max_dtr; in mmc_select_card_type()
259 card->mmc_avail_type = avail_type; in mmc_select_card_type()
262 static void mmc_manage_enhanced_area(struct mmc_card *card, u8 *ext_csd) in mmc_manage_enhanced_area() argument
269 card->ext_csd.enhanced_area_offset = -EINVAL; in mmc_manage_enhanced_area()
270 card->ext_csd.enhanced_area_size = -EINVAL; in mmc_manage_enhanced_area()
274 * card has the Enhanced area enabled. If so, export enhanced in mmc_manage_enhanced_area()
279 if (card->ext_csd.partition_setting_completed) { in mmc_manage_enhanced_area()
288 card->ext_csd.enhanced_area_offset = in mmc_manage_enhanced_area()
293 if (mmc_card_blockaddr(card)) in mmc_manage_enhanced_area()
294 card->ext_csd.enhanced_area_offset <<= 9; in mmc_manage_enhanced_area()
298 card->ext_csd.enhanced_area_size = in mmc_manage_enhanced_area()
301 card->ext_csd.enhanced_area_size *= in mmc_manage_enhanced_area()
303 card->ext_csd.enhanced_area_size <<= 9; in mmc_manage_enhanced_area()
306 mmc_hostname(card->host)); in mmc_manage_enhanced_area()
311 static void mmc_part_add(struct mmc_card *card, u64 size, in mmc_part_add() argument
315 card->part[card->nr_parts].size = size; in mmc_part_add()
316 card->part[card->nr_parts].part_cfg = part_cfg; in mmc_part_add()
317 sprintf(card->part[card->nr_parts].name, name, idx); in mmc_part_add()
318 card->part[card->nr_parts].force_ro = ro; in mmc_part_add()
319 card->part[card->nr_parts].area_type = area_type; in mmc_part_add()
320 card->nr_parts++; in mmc_part_add()
323 static void mmc_manage_gp_partitions(struct mmc_card *card, u8 *ext_csd) in mmc_manage_gp_partitions() argument
346 if (card->ext_csd.partition_setting_completed == 0) { in mmc_manage_gp_partitions()
348 mmc_hostname(card->host)); in mmc_manage_gp_partitions()
358 mmc_part_add(card, part_size << 19, in mmc_manage_gp_partitions()
372 static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) in mmc_decode_ext_csd() argument
380 card->ext_csd.raw_ext_csd_structure = ext_csd[EXT_CSD_STRUCTURE]; in mmc_decode_ext_csd()
381 if (card->csd.structure == 3) { in mmc_decode_ext_csd()
382 if (card->ext_csd.raw_ext_csd_structure > 2) { in mmc_decode_ext_csd()
384 "version %d\n", mmc_hostname(card->host), in mmc_decode_ext_csd()
385 card->ext_csd.raw_ext_csd_structure); in mmc_decode_ext_csd()
391 np = mmc_of_find_child_device(card->host, 0); in mmc_decode_ext_csd()
392 if (np && of_device_is_compatible(np, "mmc-card")) in mmc_decode_ext_csd()
401 card->ext_csd.rev = ext_csd[EXT_CSD_REV]; in mmc_decode_ext_csd()
404 mmc_fixup_device(card, mmc_ext_csd_fixups); in mmc_decode_ext_csd()
406 card->ext_csd.raw_sectors[0] = ext_csd[EXT_CSD_SEC_CNT + 0]; in mmc_decode_ext_csd()
407 card->ext_csd.raw_sectors[1] = ext_csd[EXT_CSD_SEC_CNT + 1]; in mmc_decode_ext_csd()
408 card->ext_csd.raw_sectors[2] = ext_csd[EXT_CSD_SEC_CNT + 2]; in mmc_decode_ext_csd()
409 card->ext_csd.raw_sectors[3] = ext_csd[EXT_CSD_SEC_CNT + 3]; in mmc_decode_ext_csd()
410 if (card->ext_csd.rev >= 2) { in mmc_decode_ext_csd()
411 card->ext_csd.sectors = in mmc_decode_ext_csd()
418 if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512) in mmc_decode_ext_csd()
419 mmc_card_set_blockaddr(card); in mmc_decode_ext_csd()
422 card->ext_csd.strobe_support = ext_csd[EXT_CSD_STROBE_SUPPORT]; in mmc_decode_ext_csd()
423 card->ext_csd.raw_card_type = ext_csd[EXT_CSD_CARD_TYPE]; in mmc_decode_ext_csd()
425 card->ext_csd.raw_s_a_timeout = ext_csd[EXT_CSD_S_A_TIMEOUT]; in mmc_decode_ext_csd()
426 card->ext_csd.raw_erase_timeout_mult = in mmc_decode_ext_csd()
428 card->ext_csd.raw_hc_erase_grp_size = in mmc_decode_ext_csd()
430 card->ext_csd.raw_boot_mult = in mmc_decode_ext_csd()
432 if (card->ext_csd.rev >= 3) { in mmc_decode_ext_csd()
434 card->ext_csd.part_config = ext_csd[EXT_CSD_PART_CONFIG]; in mmc_decode_ext_csd()
437 card->ext_csd.part_time = 10 * ext_csd[EXT_CSD_PART_SWITCH_TIME]; in mmc_decode_ext_csd()
441 card->ext_csd.sa_timeout = in mmc_decode_ext_csd()
443 card->ext_csd.erase_group_def = in mmc_decode_ext_csd()
445 card->ext_csd.hc_erase_timeout = 300 * in mmc_decode_ext_csd()
447 card->ext_csd.hc_erase_size = in mmc_decode_ext_csd()
450 card->ext_csd.rel_sectors = ext_csd[EXT_CSD_REL_WR_SEC_C]; in mmc_decode_ext_csd()
456 if (ext_csd[EXT_CSD_BOOT_MULT] && mmc_boot_partition_access(card->host)) { in mmc_decode_ext_csd()
459 mmc_part_add(card, part_size, in mmc_decode_ext_csd()
467 card->ext_csd.raw_hc_erase_gap_size = in mmc_decode_ext_csd()
469 card->ext_csd.raw_sec_trim_mult = in mmc_decode_ext_csd()
471 card->ext_csd.raw_sec_erase_mult = in mmc_decode_ext_csd()
473 card->ext_csd.raw_sec_feature_support = in mmc_decode_ext_csd()
475 card->ext_csd.raw_trim_mult = in mmc_decode_ext_csd()
477 card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT]; in mmc_decode_ext_csd()
478 card->ext_csd.raw_driver_strength = ext_csd[EXT_CSD_DRIVER_STRENGTH]; in mmc_decode_ext_csd()
479 if (card->ext_csd.rev >= 4) { in mmc_decode_ext_csd()
482 card->ext_csd.partition_setting_completed = 1; in mmc_decode_ext_csd()
484 card->ext_csd.partition_setting_completed = 0; in mmc_decode_ext_csd()
486 mmc_manage_enhanced_area(card, ext_csd); in mmc_decode_ext_csd()
488 mmc_manage_gp_partitions(card, ext_csd); in mmc_decode_ext_csd()
490 card->ext_csd.sec_trim_mult = in mmc_decode_ext_csd()
492 card->ext_csd.sec_erase_mult = in mmc_decode_ext_csd()
494 card->ext_csd.sec_feature_support = in mmc_decode_ext_csd()
496 card->ext_csd.trim_timeout = 300 * in mmc_decode_ext_csd()
504 card->ext_csd.boot_ro_lock = ext_csd[EXT_CSD_BOOT_WP]; in mmc_decode_ext_csd()
505 card->ext_csd.boot_ro_lockable = true; in mmc_decode_ext_csd()
508 card->ext_csd.raw_pwr_cl_52_195 = in mmc_decode_ext_csd()
510 card->ext_csd.raw_pwr_cl_26_195 = in mmc_decode_ext_csd()
512 card->ext_csd.raw_pwr_cl_52_360 = in mmc_decode_ext_csd()
514 card->ext_csd.raw_pwr_cl_26_360 = in mmc_decode_ext_csd()
516 card->ext_csd.raw_pwr_cl_200_195 = in mmc_decode_ext_csd()
518 card->ext_csd.raw_pwr_cl_200_360 = in mmc_decode_ext_csd()
520 card->ext_csd.raw_pwr_cl_ddr_52_195 = in mmc_decode_ext_csd()
522 card->ext_csd.raw_pwr_cl_ddr_52_360 = in mmc_decode_ext_csd()
524 card->ext_csd.raw_pwr_cl_ddr_200_360 = in mmc_decode_ext_csd()
528 if (card->ext_csd.rev >= 5) { in mmc_decode_ext_csd()
530 if (card->cid.year < 2010) in mmc_decode_ext_csd()
531 card->cid.year += 16; in mmc_decode_ext_csd()
533 /* check whether the eMMC card supports BKOPS */ in mmc_decode_ext_csd()
535 card->ext_csd.bkops = 1; in mmc_decode_ext_csd()
536 card->ext_csd.man_bkops_en = in mmc_decode_ext_csd()
539 card->ext_csd.raw_bkops_status = in mmc_decode_ext_csd()
541 if (card->ext_csd.man_bkops_en) in mmc_decode_ext_csd()
543 mmc_hostname(card->host)); in mmc_decode_ext_csd()
544 card->ext_csd.auto_bkops_en = in mmc_decode_ext_csd()
547 if (card->ext_csd.auto_bkops_en) in mmc_decode_ext_csd()
549 mmc_hostname(card->host)); in mmc_decode_ext_csd()
552 /* check whether the eMMC card supports HPI */ in mmc_decode_ext_csd()
553 if (!mmc_card_broken_hpi(card) && in mmc_decode_ext_csd()
555 card->ext_csd.hpi = 1; in mmc_decode_ext_csd()
557 card->ext_csd.hpi_cmd = MMC_STOP_TRANSMISSION; in mmc_decode_ext_csd()
559 card->ext_csd.hpi_cmd = MMC_SEND_STATUS; in mmc_decode_ext_csd()
564 card->ext_csd.out_of_int_time = in mmc_decode_ext_csd()
568 card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; in mmc_decode_ext_csd()
569 card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION]; in mmc_decode_ext_csd()
574 card->ext_csd.raw_rpmb_size_mult = ext_csd[EXT_CSD_RPMB_MULT]; in mmc_decode_ext_csd()
575 if (ext_csd[EXT_CSD_RPMB_MULT] && mmc_host_cmd23(card->host)) { in mmc_decode_ext_csd()
576 mmc_part_add(card, ext_csd[EXT_CSD_RPMB_MULT] << 17, in mmc_decode_ext_csd()
583 card->ext_csd.raw_erased_mem_count = ext_csd[EXT_CSD_ERASED_MEM_CONT]; in mmc_decode_ext_csd()
585 card->erased_byte = 0xFF; in mmc_decode_ext_csd()
587 card->erased_byte = 0x0; in mmc_decode_ext_csd()
590 card->ext_csd.generic_cmd6_time = DEFAULT_CMD6_TIMEOUT_MS; in mmc_decode_ext_csd()
591 if (card->ext_csd.rev >= 6) { in mmc_decode_ext_csd()
592 card->ext_csd.feature_support |= MMC_DISCARD_FEATURE; in mmc_decode_ext_csd()
594 card->ext_csd.generic_cmd6_time = 10 * in mmc_decode_ext_csd()
596 card->ext_csd.power_off_longtime = 10 * in mmc_decode_ext_csd()
599 card->ext_csd.cache_size = in mmc_decode_ext_csd()
606 card->ext_csd.data_sector_size = 4096; in mmc_decode_ext_csd()
608 card->ext_csd.data_sector_size = 512; in mmc_decode_ext_csd()
612 card->ext_csd.data_tag_unit_size = in mmc_decode_ext_csd()
614 (card->ext_csd.data_sector_size); in mmc_decode_ext_csd()
616 card->ext_csd.data_tag_unit_size = 0; in mmc_decode_ext_csd()
619 card->ext_csd.data_sector_size = 512; in mmc_decode_ext_csd()
627 if (!card->ext_csd.part_time) in mmc_decode_ext_csd()
628 card->ext_csd.part_time = card->ext_csd.generic_cmd6_time; in mmc_decode_ext_csd()
630 if (card->ext_csd.part_time < MMC_MIN_PART_SWITCH_TIME) in mmc_decode_ext_csd()
631 card->ext_csd.part_time = MMC_MIN_PART_SWITCH_TIME; in mmc_decode_ext_csd()
634 if (card->ext_csd.rev >= 7) { in mmc_decode_ext_csd()
635 memcpy(card->ext_csd.fwrev, &ext_csd[EXT_CSD_FIRMWARE_VERSION], in mmc_decode_ext_csd()
637 card->ext_csd.ffu_capable = in mmc_decode_ext_csd()
641 card->ext_csd.pre_eol_info = ext_csd[EXT_CSD_PRE_EOL_INFO]; in mmc_decode_ext_csd()
642 card->ext_csd.device_life_time_est_typ_a = in mmc_decode_ext_csd()
644 card->ext_csd.device_life_time_est_typ_b = in mmc_decode_ext_csd()
649 if (card->ext_csd.rev >= 8) { in mmc_decode_ext_csd()
650 card->ext_csd.cmdq_support = ext_csd[EXT_CSD_CMDQ_SUPPORT] & in mmc_decode_ext_csd()
652 card->ext_csd.cmdq_depth = (ext_csd[EXT_CSD_CMDQ_DEPTH] & in mmc_decode_ext_csd()
655 if (card->ext_csd.cmdq_depth <= 2) { in mmc_decode_ext_csd()
656 card->ext_csd.cmdq_support = false; in mmc_decode_ext_csd()
657 card->ext_csd.cmdq_depth = 0; in mmc_decode_ext_csd()
659 if (card->ext_csd.cmdq_support) { in mmc_decode_ext_csd()
661 mmc_hostname(card->host), in mmc_decode_ext_csd()
662 card->ext_csd.cmdq_depth); in mmc_decode_ext_csd()
664 card->ext_csd.enhanced_rpmb_supported = in mmc_decode_ext_csd()
665 (card->ext_csd.rel_param & in mmc_decode_ext_csd()
672 static int mmc_read_ext_csd(struct mmc_card *card) in mmc_read_ext_csd() argument
677 if (!mmc_can_ext_csd(card)) in mmc_read_ext_csd()
680 err = mmc_get_ext_csd(card, &ext_csd); in mmc_read_ext_csd()
682 /* If the host or the card can't do the switch, in mmc_read_ext_csd()
693 if (card->csd.capacity == (4096 * 512)) { in mmc_read_ext_csd()
694 pr_err("%s: unable to read EXT_CSD on a possible high capacity card. Card will be ignored.\n", in mmc_read_ext_csd()
695 mmc_hostname(card->host)); in mmc_read_ext_csd()
698 mmc_hostname(card->host)); in mmc_read_ext_csd()
705 err = mmc_decode_ext_csd(card, ext_csd); in mmc_read_ext_csd()
710 static int mmc_compare_ext_csds(struct mmc_card *card, unsigned bus_width) in mmc_compare_ext_csds() argument
718 err = mmc_get_ext_csd(card, &bw_ext_csd); in mmc_compare_ext_csds()
723 err = !((card->ext_csd.raw_partition_support == in mmc_compare_ext_csds()
725 (card->ext_csd.raw_erased_mem_count == in mmc_compare_ext_csds()
727 (card->ext_csd.rev == in mmc_compare_ext_csds()
729 (card->ext_csd.raw_ext_csd_structure == in mmc_compare_ext_csds()
731 (card->ext_csd.raw_card_type == in mmc_compare_ext_csds()
733 (card->ext_csd.raw_s_a_timeout == in mmc_compare_ext_csds()
735 (card->ext_csd.raw_hc_erase_gap_size == in mmc_compare_ext_csds()
737 (card->ext_csd.raw_erase_timeout_mult == in mmc_compare_ext_csds()
739 (card->ext_csd.raw_hc_erase_grp_size == in mmc_compare_ext_csds()
741 (card->ext_csd.raw_sec_trim_mult == in mmc_compare_ext_csds()
743 (card->ext_csd.raw_sec_erase_mult == in mmc_compare_ext_csds()
745 (card->ext_csd.raw_sec_feature_support == in mmc_compare_ext_csds()
747 (card->ext_csd.raw_trim_mult == in mmc_compare_ext_csds()
749 (card->ext_csd.raw_sectors[0] == in mmc_compare_ext_csds()
751 (card->ext_csd.raw_sectors[1] == in mmc_compare_ext_csds()
753 (card->ext_csd.raw_sectors[2] == in mmc_compare_ext_csds()
755 (card->ext_csd.raw_sectors[3] == in mmc_compare_ext_csds()
757 (card->ext_csd.raw_pwr_cl_52_195 == in mmc_compare_ext_csds()
759 (card->ext_csd.raw_pwr_cl_26_195 == in mmc_compare_ext_csds()
761 (card->ext_csd.raw_pwr_cl_52_360 == in mmc_compare_ext_csds()
763 (card->ext_csd.raw_pwr_cl_26_360 == in mmc_compare_ext_csds()
765 (card->ext_csd.raw_pwr_cl_200_195 == in mmc_compare_ext_csds()
767 (card->ext_csd.raw_pwr_cl_200_360 == in mmc_compare_ext_csds()
769 (card->ext_csd.raw_pwr_cl_ddr_52_195 == in mmc_compare_ext_csds()
771 (card->ext_csd.raw_pwr_cl_ddr_52_360 == in mmc_compare_ext_csds()
773 (card->ext_csd.raw_pwr_cl_ddr_200_360 == in mmc_compare_ext_csds()
783 MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
784 card->raw_cid[2], card->raw_cid[3]);
785 MMC_DEV_ATTR(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1],
786 card->raw_csd[2], card->raw_csd[3]);
787 MMC_DEV_ATTR(date, "%02d/%04d\n", card->cid.month, card->cid.year);
788 MMC_DEV_ATTR(erase_size, "%u\n", card->erase_size << 9);
789 MMC_DEV_ATTR(preferred_erase_size, "%u\n", card->pref_erase << 9);
790 MMC_DEV_ATTR(wp_grp_size, "%u\n", card->wp_grp_size << 9);
791 MMC_DEV_ATTR(ffu_capable, "%d\n", card->ext_csd.ffu_capable);
792 MMC_DEV_ATTR(hwrev, "0x%x\n", card->cid.hwrev);
793 MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
794 MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
795 MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
796 MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv);
797 MMC_DEV_ATTR(rev, "0x%x\n", card->ext_csd.rev);
798 MMC_DEV_ATTR(pre_eol_info, "0x%02x\n", card->ext_csd.pre_eol_info);
800 card->ext_csd.device_life_time_est_typ_a,
801 card->ext_csd.device_life_time_est_typ_b);
802 MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial);
804 card->ext_csd.enhanced_area_offset);
805 MMC_DEV_ATTR(enhanced_area_size, "%u\n", card->ext_csd.enhanced_area_size);
806 MMC_DEV_ATTR(raw_rpmb_size_mult, "%#x\n", card->ext_csd.raw_rpmb_size_mult);
808 card->ext_csd.enhanced_rpmb_supported);
809 MMC_DEV_ATTR(rel_sectors, "%#x\n", card->ext_csd.rel_sectors);
810 MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr);
811 MMC_DEV_ATTR(rca, "0x%04x\n", card->rca);
812 MMC_DEV_ATTR(cmdq_en, "%d\n", card->ext_csd.cmdq_en);
818 struct mmc_card *card = mmc_dev_to_card(dev); in mmc_fwrev_show() local
820 if (card->ext_csd.rev < 7) in mmc_fwrev_show()
821 return sysfs_emit(buf, "0x%x\n", card->cid.fwrev); in mmc_fwrev_show()
824 card->ext_csd.fwrev); in mmc_fwrev_show()
833 struct mmc_card *card = mmc_dev_to_card(dev); in mmc_dsr_show() local
834 struct mmc_host *host = card->host; in mmc_dsr_show()
836 if (card->csd.dsr_imp && host->dsr_req) in mmc_dsr_show()
886 static int __mmc_select_powerclass(struct mmc_card *card, in __mmc_select_powerclass() argument
889 struct mmc_host *host = card->host; in __mmc_select_powerclass()
890 struct mmc_ext_csd *ext_csd = &card->ext_csd; in __mmc_select_powerclass()
940 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in __mmc_select_powerclass()
943 card->ext_csd.generic_cmd6_time); in __mmc_select_powerclass()
949 static int mmc_select_powerclass(struct mmc_card *card) in mmc_select_powerclass() argument
951 struct mmc_host *host = card->host; in mmc_select_powerclass()
956 if (!mmc_can_ext_csd(card)) in mmc_select_powerclass()
964 ddr = card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_52; in mmc_select_powerclass()
972 err = __mmc_select_powerclass(card, ext_csd_bits); in mmc_select_powerclass()
983 static void mmc_set_bus_speed(struct mmc_card *card) in mmc_set_bus_speed() argument
987 if ((mmc_card_hs200(card) || mmc_card_hs400(card)) && in mmc_set_bus_speed()
988 max_dtr > card->ext_csd.hs200_max_dtr) in mmc_set_bus_speed()
989 max_dtr = card->ext_csd.hs200_max_dtr; in mmc_set_bus_speed()
990 else if (mmc_card_hs(card) && max_dtr > card->ext_csd.hs_max_dtr) in mmc_set_bus_speed()
991 max_dtr = card->ext_csd.hs_max_dtr; in mmc_set_bus_speed()
992 else if (max_dtr > card->csd.max_dtr) in mmc_set_bus_speed()
993 max_dtr = card->csd.max_dtr; in mmc_set_bus_speed()
995 mmc_set_clock(card->host, max_dtr); in mmc_set_bus_speed()
1003 static int mmc_select_bus_width(struct mmc_card *card) in mmc_select_bus_width() argument
1015 struct mmc_host *host = card->host; in mmc_select_bus_width()
1019 if (!mmc_can_ext_csd(card) || in mmc_select_bus_width()
1039 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_bus_width()
1042 card->ext_csd.generic_cmd6_time); in mmc_select_bus_width()
1055 err = mmc_compare_ext_csds(card, bus_width); in mmc_select_bus_width()
1057 err = mmc_bus_test(card, bus_width); in mmc_select_bus_width()
1074 static int mmc_select_hs(struct mmc_card *card) in mmc_select_hs() argument
1078 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs()
1080 card->ext_csd.generic_cmd6_time, MMC_TIMING_MMC_HS, in mmc_select_hs()
1084 mmc_hostname(card->host), err); in mmc_select_hs()
1092 static int mmc_select_hs_ddr(struct mmc_card *card) in mmc_select_hs_ddr() argument
1094 struct mmc_host *host = card->host; in mmc_select_hs_ddr()
1098 if (!(card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_52)) in mmc_select_hs_ddr()
1108 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs_ddr()
1111 card->ext_csd.generic_cmd6_time, in mmc_select_hs_ddr()
1129 * Even (e)MMC card can support 3.3v to 1.2v vccq, but not all in mmc_select_hs_ddr()
1145 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_1_2V) { in mmc_select_hs_ddr()
1151 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_1_8V && in mmc_select_hs_ddr()
1162 static int mmc_select_hs400(struct mmc_card *card) in mmc_select_hs400() argument
1164 struct mmc_host *host = card->host; in mmc_select_hs400()
1172 if (!(card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400 && in mmc_select_hs400()
1176 /* Switch card to HS mode */ in mmc_select_hs400()
1178 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400()
1180 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400()
1196 max_dtr = card->ext_csd.hs_max_dtr; in mmc_select_hs400()
1199 err = mmc_switch_status(card, true); in mmc_select_hs400()
1206 /* Switch card to DDR */ in mmc_select_hs400()
1207 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400()
1210 card->ext_csd.generic_cmd6_time); in mmc_select_hs400()
1217 /* Switch card to HS400 */ in mmc_select_hs400()
1219 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_select_hs400()
1220 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400()
1222 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400()
1232 mmc_set_bus_speed(card); in mmc_select_hs400()
1236 err = host->ops->execute_hs400_tuning(host, card); in mmc_select_hs400()
1245 err = mmc_switch_status(card, true); in mmc_select_hs400()
1252 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_select_hs400()
1257 int mmc_hs200_to_hs400(struct mmc_card *card) in mmc_hs200_to_hs400() argument
1259 return mmc_select_hs400(card); in mmc_hs200_to_hs400()
1262 int mmc_hs400_to_hs200(struct mmc_card *card) in mmc_hs400_to_hs200() argument
1264 struct mmc_host *host = card->host; in mmc_hs400_to_hs200()
1270 max_dtr = card->ext_csd.hs_max_dtr; in mmc_hs400_to_hs200()
1275 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, in mmc_hs400_to_hs200()
1276 val, card->ext_csd.generic_cmd6_time, 0, in mmc_hs400_to_hs200()
1286 err = mmc_switch_status(card, true); in mmc_hs400_to_hs200()
1291 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, in mmc_hs400_to_hs200()
1292 EXT_CSD_BUS_WIDTH_8, card->ext_csd.generic_cmd6_time, in mmc_hs400_to_hs200()
1299 err = mmc_switch_status(card, true); in mmc_hs400_to_hs200()
1305 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_hs400_to_hs200()
1306 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, in mmc_hs400_to_hs200()
1307 val, card->ext_csd.generic_cmd6_time, 0, in mmc_hs400_to_hs200()
1319 err = mmc_switch_status(card, false); in mmc_hs400_to_hs200()
1323 mmc_set_bus_speed(card); in mmc_hs400_to_hs200()
1332 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_hs400_to_hs200()
1337 static void mmc_select_driver_type(struct mmc_card *card) in mmc_select_driver_type() argument
1340 int fixed_drv_type = card->host->fixed_drv_type; in mmc_select_driver_type()
1342 card_drv_type = card->ext_csd.raw_driver_strength | in mmc_select_driver_type()
1349 drive_strength = mmc_select_drive_strength(card, in mmc_select_driver_type()
1350 card->ext_csd.hs200_max_dtr, in mmc_select_driver_type()
1353 card->drive_strength = drive_strength; in mmc_select_driver_type()
1356 mmc_set_driver_type(card->host, drv_type); in mmc_select_driver_type()
1359 static int mmc_select_hs400es(struct mmc_card *card) in mmc_select_hs400es() argument
1361 struct mmc_host *host = card->host; in mmc_select_hs400es()
1365 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V) in mmc_select_hs400es()
1368 if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_8V) in mmc_select_hs400es()
1371 /* If fails try again during next card power cycle */ in mmc_select_hs400es()
1375 err = mmc_select_bus_width(card); in mmc_select_hs400es()
1383 /* Switch card to HS mode */ in mmc_select_hs400es()
1384 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400es()
1386 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400es()
1399 mmc_set_bus_speed(card); in mmc_select_hs400es()
1401 err = mmc_switch_status(card, true); in mmc_select_hs400es()
1405 /* Switch card to DDR with strobe bit */ in mmc_select_hs400es()
1407 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400es()
1410 card->ext_csd.generic_cmd6_time); in mmc_select_hs400es()
1417 mmc_select_driver_type(card); in mmc_select_hs400es()
1419 /* Switch card to HS400 */ in mmc_select_hs400es()
1421 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_select_hs400es()
1422 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs400es()
1424 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs400es()
1440 err = mmc_switch_status(card, true); in mmc_select_hs400es()
1447 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_select_hs400es()
1459 static int mmc_select_hs200(struct mmc_card *card) in mmc_select_hs200() argument
1461 struct mmc_host *host = card->host; in mmc_select_hs200()
1467 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_2V) in mmc_select_hs200()
1470 if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_8V) in mmc_select_hs200()
1473 /* If fails try again during next card power cycle */ in mmc_select_hs200()
1477 mmc_select_driver_type(card); in mmc_select_hs200()
1483 err = mmc_select_bus_width(card); in mmc_select_hs200()
1486 card->drive_strength << EXT_CSD_DRV_STR_SHIFT; in mmc_select_hs200()
1487 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_select_hs200()
1489 card->ext_csd.generic_cmd6_time, 0, in mmc_select_hs200()
1503 mmc_set_clock(card->host, card->ext_csd.hs_max_dtr); in mmc_select_hs200()
1510 err = mmc_switch_status(card, false); in mmc_select_hs200()
1527 pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host), in mmc_select_hs200()
1536 static int mmc_select_timing(struct mmc_card *card) in mmc_select_timing() argument
1540 if (!mmc_can_ext_csd(card)) in mmc_select_timing()
1543 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400ES) { in mmc_select_timing()
1544 err = mmc_select_hs400es(card); in mmc_select_timing()
1548 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200) { in mmc_select_timing()
1549 err = mmc_select_hs200(card); in mmc_select_timing()
1551 card->mmc_avail_type &= ~EXT_CSD_CARD_TYPE_HS200; in mmc_select_timing()
1556 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS) in mmc_select_timing()
1557 err = mmc_select_hs(card); in mmc_select_timing()
1568 mmc_set_bus_speed(card); in mmc_select_timing()
1576 static int mmc_hs200_tuning(struct mmc_card *card) in mmc_hs200_tuning() argument
1578 struct mmc_host *host = card->host; in mmc_hs200_tuning()
1584 if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400 && in mmc_hs200_tuning()
1589 return mmc_execute_tuning(card); in mmc_hs200_tuning()
1593 * Handle the detection and initialisation of a card.
1595 * In the case of a resume, "oldcard" will contain the card
1601 struct mmc_card *card; in mmc_init_card() local
1636 * Fetch CID from card. in mmc_init_card()
1644 pr_debug("%s: Perhaps the card was replaced\n", in mmc_init_card()
1650 card = oldcard; in mmc_init_card()
1653 * Allocate card structure. in mmc_init_card()
1655 card = mmc_alloc_card(host, &mmc_type); in mmc_init_card()
1656 if (IS_ERR(card)) { in mmc_init_card()
1657 err = PTR_ERR(card); in mmc_init_card()
1661 card->ocr = ocr; in mmc_init_card()
1662 card->type = MMC_TYPE_MMC; in mmc_init_card()
1663 card->rca = 1; in mmc_init_card()
1664 memcpy(card->raw_cid, cid, sizeof(card->raw_cid)); in mmc_init_card()
1671 host->ops->init_card(host, card); in mmc_init_card()
1674 * For native busses: set card RCA and quit open drain mode. in mmc_init_card()
1677 err = mmc_set_relative_addr(card); in mmc_init_card()
1686 * Fetch CSD from card. in mmc_init_card()
1688 err = mmc_send_csd(card, card->raw_csd); in mmc_init_card()
1692 err = mmc_decode_csd(card); in mmc_init_card()
1695 err = mmc_decode_cid(card); in mmc_init_card()
1704 if (card->csd.dsr_imp && host->dsr_req) in mmc_init_card()
1708 * Select card, as all following commands rely on that. in mmc_init_card()
1711 err = mmc_select_card(card); in mmc_init_card()
1718 err = mmc_read_ext_csd(card); in mmc_init_card()
1729 mmc_card_set_blockaddr(card); in mmc_init_card()
1732 mmc_set_erase_size(card); in mmc_init_card()
1736 * Reselect the card type since host caps could have been changed when in mmc_init_card()
1737 * debugging even if the card is not new. in mmc_init_card()
1739 mmc_select_card_type(card); in mmc_init_card()
1742 if (card->ext_csd.rev >= 3) { in mmc_init_card()
1743 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1745 card->ext_csd.generic_cmd6_time); in mmc_init_card()
1756 card->ext_csd.enhanced_area_offset = -EINVAL; in mmc_init_card()
1757 card->ext_csd.enhanced_area_size = -EINVAL; in mmc_init_card()
1759 card->ext_csd.erase_group_def = 1; in mmc_init_card()
1765 mmc_set_erase_size(card); in mmc_init_card()
1768 mmc_set_wp_grp_size(card); in mmc_init_card()
1772 if (card->ext_csd.part_config & EXT_CSD_PART_CONFIG_ACC_MASK) { in mmc_init_card()
1773 card->ext_csd.part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK; in mmc_init_card()
1774 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONFIG, in mmc_init_card()
1775 card->ext_csd.part_config, in mmc_init_card()
1776 card->ext_csd.part_time); in mmc_init_card()
1784 if (card->ext_csd.rev >= 6) { in mmc_init_card()
1785 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1788 card->ext_csd.generic_cmd6_time); in mmc_init_card()
1797 card->ext_csd.power_off_notification = EXT_CSD_POWER_ON; in mmc_init_card()
1801 if (mmc_can_discard(card)) in mmc_init_card()
1802 card->erase_arg = MMC_DISCARD_ARG; in mmc_init_card()
1803 else if (mmc_can_trim(card)) in mmc_init_card()
1804 card->erase_arg = MMC_TRIM_ARG; in mmc_init_card()
1806 card->erase_arg = MMC_ERASE_ARG; in mmc_init_card()
1811 err = mmc_select_timing(card); in mmc_init_card()
1815 if (mmc_card_hs200(card)) { in mmc_init_card()
1818 err = mmc_hs200_tuning(card); in mmc_init_card()
1820 err = mmc_select_hs400(card); in mmc_init_card()
1826 } else if (mmc_card_hs400es(card)) { in mmc_init_card()
1828 err = host->ops->execute_hs400_tuning(host, card); in mmc_init_card()
1834 err = mmc_select_bus_width(card); in mmc_init_card()
1835 if (err > 0 && mmc_card_hs(card)) { in mmc_init_card()
1836 err = mmc_select_hs_ddr(card); in mmc_init_card()
1845 mmc_select_powerclass(card); in mmc_init_card()
1850 if (card->ext_csd.hpi) { in mmc_init_card()
1851 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1853 card->ext_csd.generic_cmd6_time); in mmc_init_card()
1858 mmc_hostname(card->host)); in mmc_init_card()
1859 card->ext_csd.hpi_en = 0; in mmc_init_card()
1861 card->ext_csd.hpi_en = 1; in mmc_init_card()
1872 if (card->ext_csd.cache_size > 0) { in mmc_init_card()
1875 timeout_ms = max(card->ext_csd.generic_cmd6_time, timeout_ms); in mmc_init_card()
1876 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_init_card()
1886 mmc_hostname(card->host), err); in mmc_init_card()
1887 card->ext_csd.cache_ctrl = 0; in mmc_init_card()
1889 card->ext_csd.cache_ctrl = 1; in mmc_init_card()
1897 card->ext_csd.cmdq_en = false; in mmc_init_card()
1898 if (card->ext_csd.cmdq_support && host->caps2 & MMC_CAP2_CQE) { in mmc_init_card()
1899 err = mmc_cmdq_enable(card); in mmc_init_card()
1904 mmc_hostname(card->host)); in mmc_init_card()
1905 card->ext_csd.cmdq_support = false; in mmc_init_card()
1906 card->ext_csd.cmdq_depth = 0; in mmc_init_card()
1914 card->reenable_cmdq = card->ext_csd.cmdq_en; in mmc_init_card()
1917 err = host->cqe_ops->cqe_enable(host, card); in mmc_init_card()
1921 if (card->ext_csd.cmdq_en) { in mmc_init_card()
1941 host->card = card; in mmc_init_card()
1947 mmc_remove_card(card); in mmc_init_card()
1952 static int mmc_can_sleep(struct mmc_card *card) in mmc_can_sleep() argument
1954 return card->ext_csd.rev >= 3; in mmc_can_sleep()
1968 struct mmc_card *card = host->card; in mmc_sleep() local
1969 unsigned int timeout_ms = DIV_ROUND_UP(card->ext_csd.sa_timeout, 10000); in mmc_sleep()
1973 /* Re-tuning can't be done once the card is deselected */ in mmc_sleep()
1981 cmd.arg = card->rca << 16; in mmc_sleep()
1990 * If the host does not wait while the card signals busy, then we can in mmc_sleep()
2010 static int mmc_can_poweroff_notify(const struct mmc_card *card) in mmc_can_poweroff_notify() argument
2012 return card && in mmc_can_poweroff_notify()
2013 mmc_card_mmc(card) && in mmc_can_poweroff_notify()
2014 (card->ext_csd.power_off_notification == EXT_CSD_POWER_ON); in mmc_can_poweroff_notify()
2017 static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type) in mmc_poweroff_notify() argument
2019 unsigned int timeout = card->ext_csd.generic_cmd6_time; in mmc_poweroff_notify()
2024 timeout = card->ext_csd.power_off_longtime; in mmc_poweroff_notify()
2026 err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, in mmc_poweroff_notify()
2031 mmc_hostname(card->host), timeout); in mmc_poweroff_notify()
2034 card->ext_csd.power_off_notification = EXT_CSD_NO_POWER_NOTIFICATION; in mmc_poweroff_notify()
2040 * Host is being removed. Free up the current card.
2044 mmc_remove_card(host->card); in mmc_remove()
2045 host->card = NULL; in mmc_remove()
2049 * Card detection - card is alive.
2053 return mmc_send_status(host->card, NULL); in mmc_alive()
2057 * Card detection callback from host.
2063 mmc_get_card(host->card, NULL); in mmc_detect()
2066 * Just check if our card has been removed. in mmc_detect()
2070 mmc_put_card(host->card, NULL); in mmc_detect()
2084 return host->card->ext_csd.cache_size > 0 && in _mmc_cache_enabled()
2085 host->card->ext_csd.cache_ctrl & 1; in _mmc_cache_enabled()
2095 if (mmc_card_broken_cache_flush(host->card) && !host->card->written_flag) in _mmc_flush_cache()
2099 err = mmc_switch(host->card, EXT_CSD_CMD_SET_NORMAL, in _mmc_flush_cache()
2105 host->card->written_flag = false; in _mmc_flush_cache()
2119 if (mmc_card_suspended(host->card)) in _mmc_suspend()
2126 if (mmc_can_poweroff_notify(host->card) && in _mmc_suspend()
2129 err = mmc_poweroff_notify(host->card, notify_type); in _mmc_suspend()
2130 else if (mmc_can_sleep(host->card)) in _mmc_suspend()
2137 mmc_card_set_suspended(host->card); in _mmc_suspend()
2153 pm_runtime_disable(&host->card->dev); in mmc_suspend()
2154 pm_runtime_set_suspended(&host->card->dev); in mmc_suspend()
2161 * This function tries to determine if the same card is still present
2170 if (!mmc_card_suspended(host->card)) in _mmc_resume()
2173 mmc_power_up(host, host->card->ocr); in _mmc_resume()
2174 err = mmc_init_card(host, host->card->ocr, host->card); in _mmc_resume()
2175 mmc_card_clr_suspended(host->card); in _mmc_resume()
2190 * In a specific case for poweroff notify, we need to resume the card in mmc_shutdown()
2193 if (mmc_can_poweroff_notify(host->card) && in mmc_shutdown()
2208 pm_runtime_enable(&host->card->dev); in mmc_resume()
2245 static int mmc_can_reset(struct mmc_card *card) in mmc_can_reset() argument
2249 rst_n_function = card->ext_csd.rst_n_function; in mmc_can_reset()
2257 struct mmc_card *card = host->card; in _mmc_hw_reset() local
2266 mmc_can_reset(card)) { in _mmc_hw_reset()
2267 /* If the card accept RST_n signal, send it. */ in _mmc_hw_reset()
2274 mmc_power_cycle(host, card->ocr); in _mmc_hw_reset()
2277 return mmc_init_card(host, card->ocr, card); in _mmc_hw_reset()
2295 * Starting point for MMC card init.
2328 * Can we support the voltage of the card? in mmc_attach_mmc()
2336 * Detect and init the card. in mmc_attach_mmc()
2343 err = mmc_add_card(host->card); in mmc_attach_mmc()
2351 mmc_remove_card(host->card); in mmc_attach_mmc()
2353 host->card = NULL; in mmc_attach_mmc()
2357 pr_err("%s: error %d whilst initialising MMC card\n", in mmc_attach_mmc()