17ea239d9SPierre Ossman /* 270f10482SPierre Ossman * linux/drivers/mmc/core/mmc.c 37ea239d9SPierre Ossman * 47ea239d9SPierre Ossman * Copyright (C) 2003-2004 Russell King, All Rights Reserved. 57ea239d9SPierre Ossman * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved. 67ea239d9SPierre Ossman * MMCv4 support Copyright (C) 2006 Philip Langdale, All Rights Reserved. 77ea239d9SPierre Ossman * 87ea239d9SPierre Ossman * This program is free software; you can redistribute it and/or modify 97ea239d9SPierre Ossman * it under the terms of the GNU General Public License version 2 as 107ea239d9SPierre Ossman * published by the Free Software Foundation. 117ea239d9SPierre Ossman */ 127ea239d9SPierre Ossman 137ea239d9SPierre Ossman #include <linux/err.h> 145a0e3ad6STejun Heo #include <linux/slab.h> 150205a904SPaul Gortmaker #include <linux/stat.h> 160cb403a2SUlf Hansson #include <linux/pm_runtime.h> 177ea239d9SPierre Ossman 187ea239d9SPierre Ossman #include <linux/mmc/host.h> 197ea239d9SPierre Ossman #include <linux/mmc/card.h> 207ea239d9SPierre Ossman #include <linux/mmc/mmc.h> 217ea239d9SPierre Ossman 227ea239d9SPierre Ossman #include "core.h" 234101c16aSPierre Ossman #include "bus.h" 247ea239d9SPierre Ossman #include "mmc_ops.h" 254c4cb171SPhilip Rakity #include "sd_ops.h" 267ea239d9SPierre Ossman 277ea239d9SPierre Ossman static const unsigned int tran_exp[] = { 287ea239d9SPierre Ossman 10000, 100000, 1000000, 10000000, 297ea239d9SPierre Ossman 0, 0, 0, 0 307ea239d9SPierre Ossman }; 317ea239d9SPierre Ossman 327ea239d9SPierre Ossman static const unsigned char tran_mant[] = { 337ea239d9SPierre Ossman 0, 10, 12, 13, 15, 20, 25, 30, 347ea239d9SPierre Ossman 35, 40, 45, 50, 55, 60, 70, 80, 357ea239d9SPierre Ossman }; 367ea239d9SPierre Ossman 377ea239d9SPierre Ossman static const unsigned int tacc_exp[] = { 387ea239d9SPierre Ossman 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 397ea239d9SPierre Ossman }; 407ea239d9SPierre Ossman 417ea239d9SPierre Ossman static const unsigned int tacc_mant[] = { 427ea239d9SPierre Ossman 0, 10, 12, 13, 15, 20, 25, 30, 437ea239d9SPierre Ossman 35, 40, 45, 50, 55, 60, 70, 80, 447ea239d9SPierre Ossman }; 457ea239d9SPierre Ossman 467ea239d9SPierre Ossman #define UNSTUFF_BITS(resp,start,size) \ 477ea239d9SPierre Ossman ({ \ 487ea239d9SPierre Ossman const int __size = size; \ 497ea239d9SPierre Ossman const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \ 507ea239d9SPierre Ossman const int __off = 3 - ((start) / 32); \ 517ea239d9SPierre Ossman const int __shft = (start) & 31; \ 527ea239d9SPierre Ossman u32 __res; \ 537ea239d9SPierre Ossman \ 547ea239d9SPierre Ossman __res = resp[__off] >> __shft; \ 557ea239d9SPierre Ossman if (__size + __shft > 32) \ 567ea239d9SPierre Ossman __res |= resp[__off-1] << ((32 - __shft) % 32); \ 577ea239d9SPierre Ossman __res & __mask; \ 587ea239d9SPierre Ossman }) 597ea239d9SPierre Ossman 607ea239d9SPierre Ossman /* 617ea239d9SPierre Ossman * Given the decoded CSD structure, decode the raw CID to our CID structure. 627ea239d9SPierre Ossman */ 63bd766312SPierre Ossman static int mmc_decode_cid(struct mmc_card *card) 647ea239d9SPierre Ossman { 657ea239d9SPierre Ossman u32 *resp = card->raw_cid; 667ea239d9SPierre Ossman 677ea239d9SPierre Ossman /* 687ea239d9SPierre Ossman * The selection of the format here is based upon published 697ea239d9SPierre Ossman * specs from sandisk and from what people have reported. 707ea239d9SPierre Ossman */ 717ea239d9SPierre Ossman switch (card->csd.mmca_vsn) { 727ea239d9SPierre Ossman case 0: /* MMC v1.0 - v1.2 */ 737ea239d9SPierre Ossman case 1: /* MMC v1.4 */ 747ea239d9SPierre Ossman card->cid.manfid = UNSTUFF_BITS(resp, 104, 24); 757ea239d9SPierre Ossman card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8); 767ea239d9SPierre Ossman card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8); 777ea239d9SPierre Ossman card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8); 787ea239d9SPierre Ossman card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8); 797ea239d9SPierre Ossman card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8); 807ea239d9SPierre Ossman card->cid.prod_name[5] = UNSTUFF_BITS(resp, 56, 8); 817ea239d9SPierre Ossman card->cid.prod_name[6] = UNSTUFF_BITS(resp, 48, 8); 827ea239d9SPierre Ossman card->cid.hwrev = UNSTUFF_BITS(resp, 44, 4); 837ea239d9SPierre Ossman card->cid.fwrev = UNSTUFF_BITS(resp, 40, 4); 847ea239d9SPierre Ossman card->cid.serial = UNSTUFF_BITS(resp, 16, 24); 857ea239d9SPierre Ossman card->cid.month = UNSTUFF_BITS(resp, 12, 4); 867ea239d9SPierre Ossman card->cid.year = UNSTUFF_BITS(resp, 8, 4) + 1997; 877ea239d9SPierre Ossman break; 887ea239d9SPierre Ossman 897ea239d9SPierre Ossman case 2: /* MMC v2.0 - v2.2 */ 907ea239d9SPierre Ossman case 3: /* MMC v3.1 - v3.3 */ 917ea239d9SPierre Ossman case 4: /* MMC v4 */ 927ea239d9SPierre Ossman card->cid.manfid = UNSTUFF_BITS(resp, 120, 8); 937ea239d9SPierre Ossman card->cid.oemid = UNSTUFF_BITS(resp, 104, 16); 947ea239d9SPierre Ossman card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8); 957ea239d9SPierre Ossman card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8); 967ea239d9SPierre Ossman card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8); 977ea239d9SPierre Ossman card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8); 987ea239d9SPierre Ossman card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8); 997ea239d9SPierre Ossman card->cid.prod_name[5] = UNSTUFF_BITS(resp, 56, 8); 10051e7e8b6SBernie Thompson card->cid.prv = UNSTUFF_BITS(resp, 48, 8); 1017ea239d9SPierre Ossman card->cid.serial = UNSTUFF_BITS(resp, 16, 32); 1027ea239d9SPierre Ossman card->cid.month = UNSTUFF_BITS(resp, 12, 4); 1037ea239d9SPierre Ossman card->cid.year = UNSTUFF_BITS(resp, 8, 4) + 1997; 1047ea239d9SPierre Ossman break; 1057ea239d9SPierre Ossman 1067ea239d9SPierre Ossman default: 107a3c76eb9SGirish K S pr_err("%s: card has unknown MMCA version %d\n", 1087ea239d9SPierre Ossman mmc_hostname(card->host), card->csd.mmca_vsn); 109bd766312SPierre Ossman return -EINVAL; 1107ea239d9SPierre Ossman } 111bd766312SPierre Ossman 112bd766312SPierre Ossman return 0; 1137ea239d9SPierre Ossman } 1147ea239d9SPierre Ossman 115dfe86cbaSAdrian Hunter static void mmc_set_erase_size(struct mmc_card *card) 116dfe86cbaSAdrian Hunter { 117dfe86cbaSAdrian Hunter if (card->ext_csd.erase_group_def & 1) 118dfe86cbaSAdrian Hunter card->erase_size = card->ext_csd.hc_erase_size; 119dfe86cbaSAdrian Hunter else 120dfe86cbaSAdrian Hunter card->erase_size = card->csd.erase_size; 121dfe86cbaSAdrian Hunter 122dfe86cbaSAdrian Hunter mmc_init_erase(card); 123dfe86cbaSAdrian Hunter } 124dfe86cbaSAdrian Hunter 1257ea239d9SPierre Ossman /* 1267ea239d9SPierre Ossman * Given a 128-bit response, decode to our card CSD structure. 1277ea239d9SPierre Ossman */ 128bd766312SPierre Ossman static int mmc_decode_csd(struct mmc_card *card) 1297ea239d9SPierre Ossman { 1307ea239d9SPierre Ossman struct mmc_csd *csd = &card->csd; 131dfe86cbaSAdrian Hunter unsigned int e, m, a, b; 1327ea239d9SPierre Ossman u32 *resp = card->raw_csd; 1337ea239d9SPierre Ossman 1347ea239d9SPierre Ossman /* 1357ea239d9SPierre Ossman * We only understand CSD structure v1.1 and v1.2. 1367ea239d9SPierre Ossman * v1.2 has extra information in bits 15, 11 and 10. 1376da24b78SKyungmin Park * We also support eMMC v4.4 & v4.41. 1387ea239d9SPierre Ossman */ 1396da24b78SKyungmin Park csd->structure = UNSTUFF_BITS(resp, 126, 2); 1406da24b78SKyungmin Park if (csd->structure == 0) { 141a3c76eb9SGirish K S pr_err("%s: unrecognised CSD structure version %d\n", 1426da24b78SKyungmin Park mmc_hostname(card->host), csd->structure); 143bd766312SPierre Ossman return -EINVAL; 1447ea239d9SPierre Ossman } 1457ea239d9SPierre Ossman 1467ea239d9SPierre Ossman csd->mmca_vsn = UNSTUFF_BITS(resp, 122, 4); 1477ea239d9SPierre Ossman m = UNSTUFF_BITS(resp, 115, 4); 1487ea239d9SPierre Ossman e = UNSTUFF_BITS(resp, 112, 3); 1497ea239d9SPierre Ossman csd->tacc_ns = (tacc_exp[e] * tacc_mant[m] + 9) / 10; 1507ea239d9SPierre Ossman csd->tacc_clks = UNSTUFF_BITS(resp, 104, 8) * 100; 1517ea239d9SPierre Ossman 1527ea239d9SPierre Ossman m = UNSTUFF_BITS(resp, 99, 4); 1537ea239d9SPierre Ossman e = UNSTUFF_BITS(resp, 96, 3); 1547ea239d9SPierre Ossman csd->max_dtr = tran_exp[e] * tran_mant[m]; 1557ea239d9SPierre Ossman csd->cmdclass = UNSTUFF_BITS(resp, 84, 12); 1567ea239d9SPierre Ossman 1577ea239d9SPierre Ossman e = UNSTUFF_BITS(resp, 47, 3); 1587ea239d9SPierre Ossman m = UNSTUFF_BITS(resp, 62, 12); 1597ea239d9SPierre Ossman csd->capacity = (1 + m) << (e + 2); 1607ea239d9SPierre Ossman 1617ea239d9SPierre Ossman csd->read_blkbits = UNSTUFF_BITS(resp, 80, 4); 1627ea239d9SPierre Ossman csd->read_partial = UNSTUFF_BITS(resp, 79, 1); 1637ea239d9SPierre Ossman csd->write_misalign = UNSTUFF_BITS(resp, 78, 1); 1647ea239d9SPierre Ossman csd->read_misalign = UNSTUFF_BITS(resp, 77, 1); 1657ea239d9SPierre Ossman csd->r2w_factor = UNSTUFF_BITS(resp, 26, 3); 1667ea239d9SPierre Ossman csd->write_blkbits = UNSTUFF_BITS(resp, 22, 4); 1677ea239d9SPierre Ossman csd->write_partial = UNSTUFF_BITS(resp, 21, 1); 168bd766312SPierre Ossman 169dfe86cbaSAdrian Hunter if (csd->write_blkbits >= 9) { 170dfe86cbaSAdrian Hunter a = UNSTUFF_BITS(resp, 42, 5); 171dfe86cbaSAdrian Hunter b = UNSTUFF_BITS(resp, 37, 5); 172dfe86cbaSAdrian Hunter csd->erase_size = (a + 1) * (b + 1); 173dfe86cbaSAdrian Hunter csd->erase_size <<= csd->write_blkbits - 9; 174dfe86cbaSAdrian Hunter } 175dfe86cbaSAdrian Hunter 176bd766312SPierre Ossman return 0; 1777ea239d9SPierre Ossman } 1787ea239d9SPierre Ossman 1797ea239d9SPierre Ossman /* 18008ee80ccSPhilip Rakity * Read extended CSD. 1817ea239d9SPierre Ossman */ 18208ee80ccSPhilip Rakity static int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd) 1837ea239d9SPierre Ossman { 1847ea239d9SPierre Ossman int err; 1857ea239d9SPierre Ossman u8 *ext_csd; 1867ea239d9SPierre Ossman 1877ea239d9SPierre Ossman BUG_ON(!card); 18808ee80ccSPhilip Rakity BUG_ON(!new_ext_csd); 18908ee80ccSPhilip Rakity 19008ee80ccSPhilip Rakity *new_ext_csd = NULL; 1917ea239d9SPierre Ossman 1927ea239d9SPierre Ossman if (card->csd.mmca_vsn < CSD_SPEC_VER_4) 19317b0429dSPierre Ossman return 0; 1947ea239d9SPierre Ossman 1957ea239d9SPierre Ossman /* 1967ea239d9SPierre Ossman * As the ext_csd is so large and mostly unused, we don't store the 1977ea239d9SPierre Ossman * raw block in mmc_card. 1987ea239d9SPierre Ossman */ 1997ea239d9SPierre Ossman ext_csd = kmalloc(512, GFP_KERNEL); 2007ea239d9SPierre Ossman if (!ext_csd) { 201a3c76eb9SGirish K S pr_err("%s: could not allocate a buffer to " 202adf66a0dSPierre Ossman "receive the ext_csd.\n", mmc_hostname(card->host)); 20317b0429dSPierre Ossman return -ENOMEM; 2047ea239d9SPierre Ossman } 2057ea239d9SPierre Ossman 2067ea239d9SPierre Ossman err = mmc_send_ext_csd(card, ext_csd); 20717b0429dSPierre Ossman if (err) { 20808ee80ccSPhilip Rakity kfree(ext_csd); 20908ee80ccSPhilip Rakity *new_ext_csd = NULL; 21008ee80ccSPhilip Rakity 211d08ebeddSWolfgang Muees /* If the host or the card can't do the switch, 212d08ebeddSWolfgang Muees * fail more gracefully. */ 213d08ebeddSWolfgang Muees if ((err != -EINVAL) 214d08ebeddSWolfgang Muees && (err != -ENOSYS) 215d08ebeddSWolfgang Muees && (err != -EFAULT)) 21608ee80ccSPhilip Rakity return err; 217adf66a0dSPierre Ossman 218adf66a0dSPierre Ossman /* 2197ea239d9SPierre Ossman * High capacity cards should have this "magic" size 2207ea239d9SPierre Ossman * stored in their CSD. 2217ea239d9SPierre Ossman */ 2227ea239d9SPierre Ossman if (card->csd.capacity == (4096 * 512)) { 223a3c76eb9SGirish K S pr_err("%s: unable to read EXT_CSD " 2247ea239d9SPierre Ossman "on a possible high capacity card. " 2257ea239d9SPierre Ossman "Card will be ignored.\n", 2267ea239d9SPierre Ossman mmc_hostname(card->host)); 2277ea239d9SPierre Ossman } else { 228a3c76eb9SGirish K S pr_warning("%s: unable to read " 2297ea239d9SPierre Ossman "EXT_CSD, performance might " 2307ea239d9SPierre Ossman "suffer.\n", 2317ea239d9SPierre Ossman mmc_hostname(card->host)); 23217b0429dSPierre Ossman err = 0; 2337ea239d9SPierre Ossman } 23408ee80ccSPhilip Rakity } else 23508ee80ccSPhilip Rakity *new_ext_csd = ext_csd; 236adf66a0dSPierre Ossman 23708ee80ccSPhilip Rakity return err; 2387ea239d9SPierre Ossman } 2397ea239d9SPierre Ossman 24096cf5f02SSeungwon Jeon static void mmc_select_card_type(struct mmc_card *card) 24196cf5f02SSeungwon Jeon { 24296cf5f02SSeungwon Jeon struct mmc_host *host = card->host; 24396cf5f02SSeungwon Jeon u8 card_type = card->ext_csd.raw_card_type & EXT_CSD_CARD_TYPE_MASK; 2445f1a4dd0SLee Jones u32 caps = host->caps, caps2 = host->caps2; 24596cf5f02SSeungwon Jeon unsigned int hs_max_dtr = 0; 2462415c0efSSeungwon Jeon unsigned int avail_type = 0; 24796cf5f02SSeungwon Jeon 24896cf5f02SSeungwon Jeon if (caps & MMC_CAP_MMC_HIGHSPEED && 2492415c0efSSeungwon Jeon card_type & EXT_CSD_CARD_TYPE_HS_26) { 2502415c0efSSeungwon Jeon hs_max_dtr = MMC_HIGH_26_MAX_DTR; 2512415c0efSSeungwon Jeon avail_type |= EXT_CSD_CARD_TYPE_HS_26; 2522415c0efSSeungwon Jeon } 2532415c0efSSeungwon Jeon 2542415c0efSSeungwon Jeon if (caps & MMC_CAP_MMC_HIGHSPEED && 2552415c0efSSeungwon Jeon card_type & EXT_CSD_CARD_TYPE_HS_52) { 25696cf5f02SSeungwon Jeon hs_max_dtr = MMC_HIGH_52_MAX_DTR; 2572415c0efSSeungwon Jeon avail_type |= EXT_CSD_CARD_TYPE_HS_52; 2582415c0efSSeungwon Jeon } 25996cf5f02SSeungwon Jeon 2602415c0efSSeungwon Jeon if (caps & MMC_CAP_1_8V_DDR && 2612415c0efSSeungwon Jeon card_type & EXT_CSD_CARD_TYPE_DDR_1_8V) { 26296cf5f02SSeungwon Jeon hs_max_dtr = MMC_HIGH_DDR_MAX_DTR; 2632415c0efSSeungwon Jeon avail_type |= EXT_CSD_CARD_TYPE_DDR_1_8V; 2642415c0efSSeungwon Jeon } 26596cf5f02SSeungwon Jeon 2662415c0efSSeungwon Jeon if (caps & MMC_CAP_1_2V_DDR && 2672415c0efSSeungwon Jeon card_type & EXT_CSD_CARD_TYPE_DDR_1_2V) { 2682415c0efSSeungwon Jeon hs_max_dtr = MMC_HIGH_DDR_MAX_DTR; 2692415c0efSSeungwon Jeon avail_type |= EXT_CSD_CARD_TYPE_DDR_1_2V; 2702415c0efSSeungwon Jeon } 2712415c0efSSeungwon Jeon 2722415c0efSSeungwon Jeon if (caps2 & MMC_CAP2_HS200_1_8V_SDR && 2732415c0efSSeungwon Jeon card_type & EXT_CSD_CARD_TYPE_HS200_1_8V) { 27496cf5f02SSeungwon Jeon hs_max_dtr = MMC_HS200_MAX_DTR; 2752415c0efSSeungwon Jeon avail_type |= EXT_CSD_CARD_TYPE_HS200_1_8V; 2762415c0efSSeungwon Jeon } 2772415c0efSSeungwon Jeon 2782415c0efSSeungwon Jeon if (caps2 & MMC_CAP2_HS200_1_2V_SDR && 2792415c0efSSeungwon Jeon card_type & EXT_CSD_CARD_TYPE_HS200_1_2V) { 2802415c0efSSeungwon Jeon hs_max_dtr = MMC_HS200_MAX_DTR; 2812415c0efSSeungwon Jeon avail_type |= EXT_CSD_CARD_TYPE_HS200_1_2V; 2822415c0efSSeungwon Jeon } 28396cf5f02SSeungwon Jeon 28496cf5f02SSeungwon Jeon card->ext_csd.hs_max_dtr = hs_max_dtr; 2852415c0efSSeungwon Jeon card->mmc_avail_type = avail_type; 28696cf5f02SSeungwon Jeon } 28796cf5f02SSeungwon Jeon 28808ee80ccSPhilip Rakity /* 28908ee80ccSPhilip Rakity * Decode extended CSD. 29008ee80ccSPhilip Rakity */ 29108ee80ccSPhilip Rakity static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) 29208ee80ccSPhilip Rakity { 293e0c368d5SNamjae Jeon int err = 0, idx; 294e0c368d5SNamjae Jeon unsigned int part_size; 295e0c368d5SNamjae Jeon u8 hc_erase_grp_sz = 0, hc_wp_grp_sz = 0; 29608ee80ccSPhilip Rakity 29708ee80ccSPhilip Rakity BUG_ON(!card); 29808ee80ccSPhilip Rakity 29908ee80ccSPhilip Rakity if (!ext_csd) 30008ee80ccSPhilip Rakity return 0; 30108ee80ccSPhilip Rakity 3026da24b78SKyungmin Park /* Version is coded in the CSD_STRUCTURE byte in the EXT_CSD register */ 303f39b2dd9SPhilip Rakity card->ext_csd.raw_ext_csd_structure = ext_csd[EXT_CSD_STRUCTURE]; 3046da24b78SKyungmin Park if (card->csd.structure == 3) { 305f39b2dd9SPhilip Rakity if (card->ext_csd.raw_ext_csd_structure > 2) { 306a3c76eb9SGirish K S pr_err("%s: unrecognised EXT_CSD structure " 3078fdd8521SPierre Ossman "version %d\n", mmc_hostname(card->host), 308f39b2dd9SPhilip Rakity card->ext_csd.raw_ext_csd_structure); 3096da24b78SKyungmin Park err = -EINVAL; 3106da24b78SKyungmin Park goto out; 3116da24b78SKyungmin Park } 3126da24b78SKyungmin Park } 3136da24b78SKyungmin Park 3146da24b78SKyungmin Park card->ext_csd.rev = ext_csd[EXT_CSD_REV]; 3156636bad8SYuvaraj Kumar C D if (card->ext_csd.rev > 7) { 316a3c76eb9SGirish K S pr_err("%s: unrecognised EXT_CSD revision %d\n", 3176da24b78SKyungmin Park mmc_hostname(card->host), card->ext_csd.rev); 31800cedfa6SFlorin Malita err = -EINVAL; 31900cedfa6SFlorin Malita goto out; 320d7604d76SPierre Ossman } 321d7604d76SPierre Ossman 322f39b2dd9SPhilip Rakity card->ext_csd.raw_sectors[0] = ext_csd[EXT_CSD_SEC_CNT + 0]; 323f39b2dd9SPhilip Rakity card->ext_csd.raw_sectors[1] = ext_csd[EXT_CSD_SEC_CNT + 1]; 324f39b2dd9SPhilip Rakity card->ext_csd.raw_sectors[2] = ext_csd[EXT_CSD_SEC_CNT + 2]; 325f39b2dd9SPhilip Rakity card->ext_csd.raw_sectors[3] = ext_csd[EXT_CSD_SEC_CNT + 3]; 326b1ebe384SJarkko Lavinen if (card->ext_csd.rev >= 2) { 3277ea239d9SPierre Ossman card->ext_csd.sectors = 3287ea239d9SPierre Ossman ext_csd[EXT_CSD_SEC_CNT + 0] << 0 | 3297ea239d9SPierre Ossman ext_csd[EXT_CSD_SEC_CNT + 1] << 8 | 3307ea239d9SPierre Ossman ext_csd[EXT_CSD_SEC_CNT + 2] << 16 | 3317ea239d9SPierre Ossman ext_csd[EXT_CSD_SEC_CNT + 3] << 24; 332fc8a0985SHanumath Prasad 333fc8a0985SHanumath Prasad /* Cards with density > 2GiB are sector addressed */ 334fc8a0985SHanumath Prasad if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512) 3357ea239d9SPierre Ossman mmc_card_set_blockaddr(card); 336d7604d76SPierre Ossman } 33796cf5f02SSeungwon Jeon 338f39b2dd9SPhilip Rakity card->ext_csd.raw_card_type = ext_csd[EXT_CSD_CARD_TYPE]; 33996cf5f02SSeungwon Jeon mmc_select_card_type(card); 3407ea239d9SPierre Ossman 341f39b2dd9SPhilip Rakity card->ext_csd.raw_s_a_timeout = ext_csd[EXT_CSD_S_A_TIMEOUT]; 342f39b2dd9SPhilip Rakity card->ext_csd.raw_erase_timeout_mult = 343f39b2dd9SPhilip Rakity ext_csd[EXT_CSD_ERASE_TIMEOUT_MULT]; 344f39b2dd9SPhilip Rakity card->ext_csd.raw_hc_erase_grp_size = 345f39b2dd9SPhilip Rakity ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; 346b1ebe384SJarkko Lavinen if (card->ext_csd.rev >= 3) { 347b1ebe384SJarkko Lavinen u8 sa_shift = ext_csd[EXT_CSD_S_A_TIMEOUT]; 348371a689fSAndrei Warkentin card->ext_csd.part_config = ext_csd[EXT_CSD_PART_CONFIG]; 349371a689fSAndrei Warkentin 350371a689fSAndrei Warkentin /* EXT_CSD value is in units of 10ms, but we store in ms */ 351371a689fSAndrei Warkentin card->ext_csd.part_time = 10 * ext_csd[EXT_CSD_PART_SWITCH_TIME]; 352b1ebe384SJarkko Lavinen 353b1ebe384SJarkko Lavinen /* Sleep / awake timeout in 100ns units */ 354b1ebe384SJarkko Lavinen if (sa_shift > 0 && sa_shift <= 0x17) 355b1ebe384SJarkko Lavinen card->ext_csd.sa_timeout = 356b1ebe384SJarkko Lavinen 1 << ext_csd[EXT_CSD_S_A_TIMEOUT]; 357dfe86cbaSAdrian Hunter card->ext_csd.erase_group_def = 358dfe86cbaSAdrian Hunter ext_csd[EXT_CSD_ERASE_GROUP_DEF]; 359dfe86cbaSAdrian Hunter card->ext_csd.hc_erase_timeout = 300 * 360dfe86cbaSAdrian Hunter ext_csd[EXT_CSD_ERASE_TIMEOUT_MULT]; 361dfe86cbaSAdrian Hunter card->ext_csd.hc_erase_size = 362dfe86cbaSAdrian Hunter ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] << 10; 363f4c5522bSAndrei Warkentin 364f4c5522bSAndrei Warkentin card->ext_csd.rel_sectors = ext_csd[EXT_CSD_REL_WR_SEC_C]; 365371a689fSAndrei Warkentin 366371a689fSAndrei Warkentin /* 367371a689fSAndrei Warkentin * There are two boot regions of equal size, defined in 368371a689fSAndrei Warkentin * multiples of 128K. 369371a689fSAndrei Warkentin */ 370e0c368d5SNamjae Jeon if (ext_csd[EXT_CSD_BOOT_MULT] && mmc_boot_partition_access(card->host)) { 371e0c368d5SNamjae Jeon for (idx = 0; idx < MMC_NUM_BOOT_PARTITION; idx++) { 372e0c368d5SNamjae Jeon part_size = ext_csd[EXT_CSD_BOOT_MULT] << 17; 373e0c368d5SNamjae Jeon mmc_part_add(card, part_size, 374e0c368d5SNamjae Jeon EXT_CSD_PART_CONFIG_ACC_BOOT0 + idx, 375add710eaSJohan Rudholm "boot%d", idx, true, 376add710eaSJohan Rudholm MMC_BLK_DATA_AREA_BOOT); 377e0c368d5SNamjae Jeon } 378e0c368d5SNamjae Jeon } 379b1ebe384SJarkko Lavinen } 380b1ebe384SJarkko Lavinen 381f39b2dd9SPhilip Rakity card->ext_csd.raw_hc_erase_gap_size = 382dd13b4edSJurgen Heeks ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 383f39b2dd9SPhilip Rakity card->ext_csd.raw_sec_trim_mult = 384f39b2dd9SPhilip Rakity ext_csd[EXT_CSD_SEC_TRIM_MULT]; 385f39b2dd9SPhilip Rakity card->ext_csd.raw_sec_erase_mult = 386f39b2dd9SPhilip Rakity ext_csd[EXT_CSD_SEC_ERASE_MULT]; 387f39b2dd9SPhilip Rakity card->ext_csd.raw_sec_feature_support = 388f39b2dd9SPhilip Rakity ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT]; 389f39b2dd9SPhilip Rakity card->ext_csd.raw_trim_mult = 390f39b2dd9SPhilip Rakity ext_csd[EXT_CSD_TRIM_MULT]; 391836dc2feSPhilip Rakity card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT]; 392dfe86cbaSAdrian Hunter if (card->ext_csd.rev >= 4) { 393709de99dSChuanxiao Dong /* 394709de99dSChuanxiao Dong * Enhanced area feature support -- check whether the eMMC 395709de99dSChuanxiao Dong * card has the Enhanced area enabled. If so, export enhanced 396709de99dSChuanxiao Dong * area offset and size to user by adding sysfs interface. 397709de99dSChuanxiao Dong */ 398709de99dSChuanxiao Dong if ((ext_csd[EXT_CSD_PARTITION_SUPPORT] & 0x2) && 399709de99dSChuanxiao Dong (ext_csd[EXT_CSD_PARTITION_ATTRIBUTE] & 0x1)) { 400e0c368d5SNamjae Jeon hc_erase_grp_sz = 401709de99dSChuanxiao Dong ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; 402e0c368d5SNamjae Jeon hc_wp_grp_sz = 403709de99dSChuanxiao Dong ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 404709de99dSChuanxiao Dong 405709de99dSChuanxiao Dong card->ext_csd.enhanced_area_en = 1; 406709de99dSChuanxiao Dong /* 407709de99dSChuanxiao Dong * calculate the enhanced data area offset, in bytes 408709de99dSChuanxiao Dong */ 409709de99dSChuanxiao Dong card->ext_csd.enhanced_area_offset = 410709de99dSChuanxiao Dong (ext_csd[139] << 24) + (ext_csd[138] << 16) + 411709de99dSChuanxiao Dong (ext_csd[137] << 8) + ext_csd[136]; 412709de99dSChuanxiao Dong if (mmc_card_blockaddr(card)) 413709de99dSChuanxiao Dong card->ext_csd.enhanced_area_offset <<= 9; 414709de99dSChuanxiao Dong /* 415709de99dSChuanxiao Dong * calculate the enhanced data area size, in kilobytes 416709de99dSChuanxiao Dong */ 417709de99dSChuanxiao Dong card->ext_csd.enhanced_area_size = 418709de99dSChuanxiao Dong (ext_csd[142] << 16) + (ext_csd[141] << 8) + 419709de99dSChuanxiao Dong ext_csd[140]; 420709de99dSChuanxiao Dong card->ext_csd.enhanced_area_size *= 421709de99dSChuanxiao Dong (size_t)(hc_erase_grp_sz * hc_wp_grp_sz); 422709de99dSChuanxiao Dong card->ext_csd.enhanced_area_size <<= 9; 423709de99dSChuanxiao Dong } else { 424709de99dSChuanxiao Dong /* 425709de99dSChuanxiao Dong * If the enhanced area is not enabled, disable these 426709de99dSChuanxiao Dong * device attributes. 427709de99dSChuanxiao Dong */ 428709de99dSChuanxiao Dong card->ext_csd.enhanced_area_offset = -EINVAL; 429709de99dSChuanxiao Dong card->ext_csd.enhanced_area_size = -EINVAL; 430709de99dSChuanxiao Dong } 431e0c368d5SNamjae Jeon 432e0c368d5SNamjae Jeon /* 433e0c368d5SNamjae Jeon * General purpose partition feature support -- 434e0c368d5SNamjae Jeon * If ext_csd has the size of general purpose partitions, 435e0c368d5SNamjae Jeon * set size, part_cfg, partition name in mmc_part. 436e0c368d5SNamjae Jeon */ 437e0c368d5SNamjae Jeon if (ext_csd[EXT_CSD_PARTITION_SUPPORT] & 438e0c368d5SNamjae Jeon EXT_CSD_PART_SUPPORT_PART_EN) { 439e0c368d5SNamjae Jeon if (card->ext_csd.enhanced_area_en != 1) { 440e0c368d5SNamjae Jeon hc_erase_grp_sz = 441e0c368d5SNamjae Jeon ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; 442e0c368d5SNamjae Jeon hc_wp_grp_sz = 443e0c368d5SNamjae Jeon ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 444e0c368d5SNamjae Jeon 445e0c368d5SNamjae Jeon card->ext_csd.enhanced_area_en = 1; 446e0c368d5SNamjae Jeon } 447e0c368d5SNamjae Jeon 448e0c368d5SNamjae Jeon for (idx = 0; idx < MMC_NUM_GP_PARTITION; idx++) { 449e0c368d5SNamjae Jeon if (!ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3] && 450e0c368d5SNamjae Jeon !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1] && 451e0c368d5SNamjae Jeon !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2]) 452e0c368d5SNamjae Jeon continue; 453e0c368d5SNamjae Jeon part_size = 454e0c368d5SNamjae Jeon (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2] 455e0c368d5SNamjae Jeon << 16) + 456e0c368d5SNamjae Jeon (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1] 457e0c368d5SNamjae Jeon << 8) + 458e0c368d5SNamjae Jeon ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3]; 459e0c368d5SNamjae Jeon part_size *= (size_t)(hc_erase_grp_sz * 460e0c368d5SNamjae Jeon hc_wp_grp_sz); 461e0c368d5SNamjae Jeon mmc_part_add(card, part_size << 19, 462e0c368d5SNamjae Jeon EXT_CSD_PART_CONFIG_ACC_GP0 + idx, 463add710eaSJohan Rudholm "gp%d", idx, false, 464add710eaSJohan Rudholm MMC_BLK_DATA_AREA_GP); 465e0c368d5SNamjae Jeon } 466e0c368d5SNamjae Jeon } 467dfe86cbaSAdrian Hunter card->ext_csd.sec_trim_mult = 468dfe86cbaSAdrian Hunter ext_csd[EXT_CSD_SEC_TRIM_MULT]; 469dfe86cbaSAdrian Hunter card->ext_csd.sec_erase_mult = 470dfe86cbaSAdrian Hunter ext_csd[EXT_CSD_SEC_ERASE_MULT]; 471dfe86cbaSAdrian Hunter card->ext_csd.sec_feature_support = 472dfe86cbaSAdrian Hunter ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT]; 473dfe86cbaSAdrian Hunter card->ext_csd.trim_timeout = 300 * 474dfe86cbaSAdrian Hunter ext_csd[EXT_CSD_TRIM_MULT]; 475add710eaSJohan Rudholm 476add710eaSJohan Rudholm /* 477add710eaSJohan Rudholm * Note that the call to mmc_part_add above defaults to read 478add710eaSJohan Rudholm * only. If this default assumption is changed, the call must 479add710eaSJohan Rudholm * take into account the value of boot_locked below. 480add710eaSJohan Rudholm */ 481add710eaSJohan Rudholm card->ext_csd.boot_ro_lock = ext_csd[EXT_CSD_BOOT_WP]; 482add710eaSJohan Rudholm card->ext_csd.boot_ro_lockable = true; 48360443712SFredrik Soderstedt 48460443712SFredrik Soderstedt /* Save power class values */ 48560443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_52_195 = 48660443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_52_195]; 48760443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_26_195 = 48860443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_26_195]; 48960443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_52_360 = 49060443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_52_360]; 49160443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_26_360 = 49260443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_26_360]; 49360443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_200_195 = 49460443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_200_195]; 49560443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_200_360 = 49660443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_200_360]; 49760443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_ddr_52_195 = 49860443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_DDR_52_195]; 49960443712SFredrik Soderstedt card->ext_csd.raw_pwr_cl_ddr_52_360 = 50060443712SFredrik Soderstedt ext_csd[EXT_CSD_PWR_CL_DDR_52_360]; 501dfe86cbaSAdrian Hunter } 502dfe86cbaSAdrian Hunter 503b2499518SAdrian Hunter if (card->ext_csd.rev >= 5) { 5047c4f10acSRomain Izard /* Adjust production date as per JEDEC JESD84-B451 */ 5057c4f10acSRomain Izard if (card->cid.year < 2010) 5067c4f10acSRomain Izard card->cid.year += 16; 5077c4f10acSRomain Izard 508950d56acSJaehoon Chung /* check whether the eMMC card supports BKOPS */ 509950d56acSJaehoon Chung if (ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) { 510950d56acSJaehoon Chung card->ext_csd.bkops = 1; 511950d56acSJaehoon Chung card->ext_csd.bkops_en = ext_csd[EXT_CSD_BKOPS_EN]; 512950d56acSJaehoon Chung card->ext_csd.raw_bkops_status = 513950d56acSJaehoon Chung ext_csd[EXT_CSD_BKOPS_STATUS]; 514950d56acSJaehoon Chung if (!card->ext_csd.bkops_en) 515950d56acSJaehoon Chung pr_info("%s: BKOPS_EN bit is not set\n", 516950d56acSJaehoon Chung mmc_hostname(card->host)); 517950d56acSJaehoon Chung } 518950d56acSJaehoon Chung 519eb0d8f13SJaehoon Chung /* check whether the eMMC card supports HPI */ 520eb0d8f13SJaehoon Chung if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x1) { 521eb0d8f13SJaehoon Chung card->ext_csd.hpi = 1; 522eb0d8f13SJaehoon Chung if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x2) 523eb0d8f13SJaehoon Chung card->ext_csd.hpi_cmd = MMC_STOP_TRANSMISSION; 524eb0d8f13SJaehoon Chung else 525eb0d8f13SJaehoon Chung card->ext_csd.hpi_cmd = MMC_SEND_STATUS; 526eb0d8f13SJaehoon Chung /* 527eb0d8f13SJaehoon Chung * Indicate the maximum timeout to close 528eb0d8f13SJaehoon Chung * a command interrupted by HPI 529eb0d8f13SJaehoon Chung */ 530eb0d8f13SJaehoon Chung card->ext_csd.out_of_int_time = 531eb0d8f13SJaehoon Chung ext_csd[EXT_CSD_OUT_OF_INTERRUPT_TIME] * 10; 532eb0d8f13SJaehoon Chung } 533eb0d8f13SJaehoon Chung 534f4c5522bSAndrei Warkentin card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; 535b2499518SAdrian Hunter card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION]; 536090d25feSLoic Pallardy 537090d25feSLoic Pallardy /* 538090d25feSLoic Pallardy * RPMB regions are defined in multiples of 128K. 539090d25feSLoic Pallardy */ 540090d25feSLoic Pallardy card->ext_csd.raw_rpmb_size_mult = ext_csd[EXT_CSD_RPMB_MULT]; 541d0123ccaSBalaji T K if (ext_csd[EXT_CSD_RPMB_MULT] && mmc_host_cmd23(card->host)) { 542090d25feSLoic Pallardy mmc_part_add(card, ext_csd[EXT_CSD_RPMB_MULT] << 17, 543090d25feSLoic Pallardy EXT_CSD_PART_CONFIG_ACC_RPMB, 544090d25feSLoic Pallardy "rpmb", 0, false, 545090d25feSLoic Pallardy MMC_BLK_DATA_AREA_RPMB); 546090d25feSLoic Pallardy } 547b2499518SAdrian Hunter } 548f4c5522bSAndrei Warkentin 5495238acbeSAndrei Warkentin card->ext_csd.raw_erased_mem_count = ext_csd[EXT_CSD_ERASED_MEM_CONT]; 550dfe86cbaSAdrian Hunter if (ext_csd[EXT_CSD_ERASED_MEM_CONT]) 551dfe86cbaSAdrian Hunter card->erased_byte = 0xFF; 552dfe86cbaSAdrian Hunter else 553dfe86cbaSAdrian Hunter card->erased_byte = 0x0; 554dfe86cbaSAdrian Hunter 555336c716aSSeungwon Jeon /* eMMC v4.5 or later */ 556bec8726aSGirish K S if (card->ext_csd.rev >= 6) { 557336c716aSSeungwon Jeon card->ext_csd.feature_support |= MMC_DISCARD_FEATURE; 558336c716aSSeungwon Jeon 559b23cf0bdSSeungwon Jeon card->ext_csd.generic_cmd6_time = 10 * 560b23cf0bdSSeungwon Jeon ext_csd[EXT_CSD_GENERIC_CMD6_TIME]; 561bec8726aSGirish K S card->ext_csd.power_off_longtime = 10 * 562bec8726aSGirish K S ext_csd[EXT_CSD_POWER_OFF_LONG_TIME]; 563b23cf0bdSSeungwon Jeon 564881d1c25SSeungwon Jeon card->ext_csd.cache_size = 565881d1c25SSeungwon Jeon ext_csd[EXT_CSD_CACHE_SIZE + 0] << 0 | 566881d1c25SSeungwon Jeon ext_csd[EXT_CSD_CACHE_SIZE + 1] << 8 | 567881d1c25SSeungwon Jeon ext_csd[EXT_CSD_CACHE_SIZE + 2] << 16 | 568881d1c25SSeungwon Jeon ext_csd[EXT_CSD_CACHE_SIZE + 3] << 24; 5694265900eSSaugata Das 5704265900eSSaugata Das if (ext_csd[EXT_CSD_DATA_SECTOR_SIZE] == 1) 5714265900eSSaugata Das card->ext_csd.data_sector_size = 4096; 5724265900eSSaugata Das else 5734265900eSSaugata Das card->ext_csd.data_sector_size = 512; 5744265900eSSaugata Das 5754265900eSSaugata Das if ((ext_csd[EXT_CSD_DATA_TAG_SUPPORT] & 1) && 5764265900eSSaugata Das (ext_csd[EXT_CSD_TAG_UNIT_SIZE] <= 8)) { 5774265900eSSaugata Das card->ext_csd.data_tag_unit_size = 5784265900eSSaugata Das ((unsigned int) 1 << ext_csd[EXT_CSD_TAG_UNIT_SIZE]) * 5794265900eSSaugata Das (card->ext_csd.data_sector_size); 5804265900eSSaugata Das } else { 5814265900eSSaugata Das card->ext_csd.data_tag_unit_size = 0; 5824265900eSSaugata Das } 583abd9ac14SSeungwon Jeon 584abd9ac14SSeungwon Jeon card->ext_csd.max_packed_writes = 585abd9ac14SSeungwon Jeon ext_csd[EXT_CSD_MAX_PACKED_WRITES]; 586abd9ac14SSeungwon Jeon card->ext_csd.max_packed_reads = 587abd9ac14SSeungwon Jeon ext_csd[EXT_CSD_MAX_PACKED_READS]; 588a5075eb9SSaugata Das } else { 589a5075eb9SSaugata Das card->ext_csd.data_sector_size = 512; 590336c716aSSeungwon Jeon } 591881d1c25SSeungwon Jeon 5927ea239d9SPierre Ossman out: 59308ee80ccSPhilip Rakity return err; 59408ee80ccSPhilip Rakity } 5957ea239d9SPierre Ossman 59608ee80ccSPhilip Rakity static inline void mmc_free_ext_csd(u8 *ext_csd) 59708ee80ccSPhilip Rakity { 59808ee80ccSPhilip Rakity kfree(ext_csd); 59908ee80ccSPhilip Rakity } 60008ee80ccSPhilip Rakity 60108ee80ccSPhilip Rakity 602f39b2dd9SPhilip Rakity static int mmc_compare_ext_csds(struct mmc_card *card, unsigned bus_width) 60308ee80ccSPhilip Rakity { 60408ee80ccSPhilip Rakity u8 *bw_ext_csd; 60508ee80ccSPhilip Rakity int err; 60608ee80ccSPhilip Rakity 607f39b2dd9SPhilip Rakity if (bus_width == MMC_BUS_WIDTH_1) 608f39b2dd9SPhilip Rakity return 0; 60908ee80ccSPhilip Rakity 610f39b2dd9SPhilip Rakity err = mmc_get_ext_csd(card, &bw_ext_csd); 611f39b2dd9SPhilip Rakity 612f39b2dd9SPhilip Rakity if (err || bw_ext_csd == NULL) { 61308ee80ccSPhilip Rakity err = -EINVAL; 61408ee80ccSPhilip Rakity goto out; 61508ee80ccSPhilip Rakity } 61608ee80ccSPhilip Rakity 61708ee80ccSPhilip Rakity /* only compare read only fields */ 618dd13b4edSJurgen Heeks err = !((card->ext_csd.raw_partition_support == 61908ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_PARTITION_SUPPORT]) && 620f39b2dd9SPhilip Rakity (card->ext_csd.raw_erased_mem_count == 62108ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_ERASED_MEM_CONT]) && 622f39b2dd9SPhilip Rakity (card->ext_csd.rev == 62308ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_REV]) && 624f39b2dd9SPhilip Rakity (card->ext_csd.raw_ext_csd_structure == 62508ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_STRUCTURE]) && 626f39b2dd9SPhilip Rakity (card->ext_csd.raw_card_type == 62708ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_CARD_TYPE]) && 628f39b2dd9SPhilip Rakity (card->ext_csd.raw_s_a_timeout == 62908ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_S_A_TIMEOUT]) && 630f39b2dd9SPhilip Rakity (card->ext_csd.raw_hc_erase_gap_size == 63108ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_HC_WP_GRP_SIZE]) && 632f39b2dd9SPhilip Rakity (card->ext_csd.raw_erase_timeout_mult == 63308ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_ERASE_TIMEOUT_MULT]) && 634f39b2dd9SPhilip Rakity (card->ext_csd.raw_hc_erase_grp_size == 63508ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]) && 636f39b2dd9SPhilip Rakity (card->ext_csd.raw_sec_trim_mult == 63708ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_SEC_TRIM_MULT]) && 638f39b2dd9SPhilip Rakity (card->ext_csd.raw_sec_erase_mult == 63908ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_SEC_ERASE_MULT]) && 640f39b2dd9SPhilip Rakity (card->ext_csd.raw_sec_feature_support == 64108ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT]) && 642f39b2dd9SPhilip Rakity (card->ext_csd.raw_trim_mult == 64308ee80ccSPhilip Rakity bw_ext_csd[EXT_CSD_TRIM_MULT]) && 644f39b2dd9SPhilip Rakity (card->ext_csd.raw_sectors[0] == 645f39b2dd9SPhilip Rakity bw_ext_csd[EXT_CSD_SEC_CNT + 0]) && 646f39b2dd9SPhilip Rakity (card->ext_csd.raw_sectors[1] == 647f39b2dd9SPhilip Rakity bw_ext_csd[EXT_CSD_SEC_CNT + 1]) && 648f39b2dd9SPhilip Rakity (card->ext_csd.raw_sectors[2] == 649f39b2dd9SPhilip Rakity bw_ext_csd[EXT_CSD_SEC_CNT + 2]) && 650f39b2dd9SPhilip Rakity (card->ext_csd.raw_sectors[3] == 65160443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_SEC_CNT + 3]) && 65260443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_52_195 == 65360443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_52_195]) && 65460443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_26_195 == 65560443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_26_195]) && 65660443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_52_360 == 65760443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_52_360]) && 65860443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_26_360 == 65960443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_26_360]) && 66060443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_200_195 == 66160443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_200_195]) && 66260443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_200_360 == 66360443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_200_360]) && 66460443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_ddr_52_195 == 66560443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_DDR_52_195]) && 66660443712SFredrik Soderstedt (card->ext_csd.raw_pwr_cl_ddr_52_360 == 66760443712SFredrik Soderstedt bw_ext_csd[EXT_CSD_PWR_CL_DDR_52_360])); 66808ee80ccSPhilip Rakity if (err) 66908ee80ccSPhilip Rakity err = -EINVAL; 67008ee80ccSPhilip Rakity 67108ee80ccSPhilip Rakity out: 67208ee80ccSPhilip Rakity mmc_free_ext_csd(bw_ext_csd); 6737ea239d9SPierre Ossman return err; 6747ea239d9SPierre Ossman } 6757ea239d9SPierre Ossman 67651ec92e2SPierre Ossman MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1], 67751ec92e2SPierre Ossman card->raw_cid[2], card->raw_cid[3]); 67851ec92e2SPierre Ossman MMC_DEV_ATTR(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1], 67951ec92e2SPierre Ossman card->raw_csd[2], card->raw_csd[3]); 68051ec92e2SPierre Ossman MMC_DEV_ATTR(date, "%02d/%04d\n", card->cid.month, card->cid.year); 681dfe86cbaSAdrian Hunter MMC_DEV_ATTR(erase_size, "%u\n", card->erase_size << 9); 682dfe86cbaSAdrian Hunter MMC_DEV_ATTR(preferred_erase_size, "%u\n", card->pref_erase << 9); 68351ec92e2SPierre Ossman MMC_DEV_ATTR(fwrev, "0x%x\n", card->cid.fwrev); 68451ec92e2SPierre Ossman MMC_DEV_ATTR(hwrev, "0x%x\n", card->cid.hwrev); 68551ec92e2SPierre Ossman MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid); 68651ec92e2SPierre Ossman MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name); 68751ec92e2SPierre Ossman MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid); 68851e7e8b6SBernie Thompson MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv); 68951ec92e2SPierre Ossman MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial); 690709de99dSChuanxiao Dong MMC_DEV_ATTR(enhanced_area_offset, "%llu\n", 691709de99dSChuanxiao Dong card->ext_csd.enhanced_area_offset); 692709de99dSChuanxiao Dong MMC_DEV_ATTR(enhanced_area_size, "%u\n", card->ext_csd.enhanced_area_size); 693188cc042SLoic Pallardy MMC_DEV_ATTR(raw_rpmb_size_mult, "%#x\n", card->ext_csd.raw_rpmb_size_mult); 694188cc042SLoic Pallardy MMC_DEV_ATTR(rel_sectors, "%#x\n", card->ext_csd.rel_sectors); 69551ec92e2SPierre Ossman 69651ec92e2SPierre Ossman static struct attribute *mmc_std_attrs[] = { 69751ec92e2SPierre Ossman &dev_attr_cid.attr, 69851ec92e2SPierre Ossman &dev_attr_csd.attr, 69951ec92e2SPierre Ossman &dev_attr_date.attr, 700dfe86cbaSAdrian Hunter &dev_attr_erase_size.attr, 701dfe86cbaSAdrian Hunter &dev_attr_preferred_erase_size.attr, 70251ec92e2SPierre Ossman &dev_attr_fwrev.attr, 70351ec92e2SPierre Ossman &dev_attr_hwrev.attr, 70451ec92e2SPierre Ossman &dev_attr_manfid.attr, 70551ec92e2SPierre Ossman &dev_attr_name.attr, 70651ec92e2SPierre Ossman &dev_attr_oemid.attr, 70751e7e8b6SBernie Thompson &dev_attr_prv.attr, 70851ec92e2SPierre Ossman &dev_attr_serial.attr, 709709de99dSChuanxiao Dong &dev_attr_enhanced_area_offset.attr, 710709de99dSChuanxiao Dong &dev_attr_enhanced_area_size.attr, 711188cc042SLoic Pallardy &dev_attr_raw_rpmb_size_mult.attr, 712188cc042SLoic Pallardy &dev_attr_rel_sectors.attr, 71351ec92e2SPierre Ossman NULL, 71451ec92e2SPierre Ossman }; 715d1e58212SAxel Lin ATTRIBUTE_GROUPS(mmc_std); 71651ec92e2SPierre Ossman 71751ec92e2SPierre Ossman static struct device_type mmc_type = { 718d1e58212SAxel Lin .groups = mmc_std_groups, 71951ec92e2SPierre Ossman }; 72051ec92e2SPierre Ossman 7217ea239d9SPierre Ossman /* 722b87d8dbfSGirish K S * Select the PowerClass for the current bus width 723b87d8dbfSGirish K S * If power class is defined for 4/8 bit bus in the 724b87d8dbfSGirish K S * extended CSD register, select it by executing the 725b87d8dbfSGirish K S * mmc_switch command. 726b87d8dbfSGirish K S */ 7272385049dSSeungwon Jeon static int __mmc_select_powerclass(struct mmc_card *card, 72860443712SFredrik Soderstedt unsigned int bus_width) 729b87d8dbfSGirish K S { 7302385049dSSeungwon Jeon struct mmc_host *host = card->host; 7312385049dSSeungwon Jeon struct mmc_ext_csd *ext_csd = &card->ext_csd; 73260443712SFredrik Soderstedt unsigned int pwrclass_val = 0; 7332385049dSSeungwon Jeon int err = 0; 734b87d8dbfSGirish K S 735b87d8dbfSGirish K S /* Power class selection is supported for versions >= 4.0 */ 736b87d8dbfSGirish K S if (card->csd.mmca_vsn < CSD_SPEC_VER_4) 737b87d8dbfSGirish K S return 0; 738b87d8dbfSGirish K S 739b87d8dbfSGirish K S /* Power class values are defined only for 4/8 bit bus */ 740b87d8dbfSGirish K S if (bus_width == EXT_CSD_BUS_WIDTH_1) 741b87d8dbfSGirish K S return 0; 742b87d8dbfSGirish K S 743b87d8dbfSGirish K S switch (1 << host->ios.vdd) { 744b87d8dbfSGirish K S case MMC_VDD_165_195: 7452385049dSSeungwon Jeon if (host->ios.clock <= MMC_HIGH_26_MAX_DTR) 7462385049dSSeungwon Jeon pwrclass_val = ext_csd->raw_pwr_cl_26_195; 7472385049dSSeungwon Jeon else if (host->ios.clock <= MMC_HIGH_52_MAX_DTR) 74860443712SFredrik Soderstedt pwrclass_val = (bus_width <= EXT_CSD_BUS_WIDTH_8) ? 7492385049dSSeungwon Jeon ext_csd->raw_pwr_cl_52_195 : 7502385049dSSeungwon Jeon ext_csd->raw_pwr_cl_ddr_52_195; 7512385049dSSeungwon Jeon else if (host->ios.clock <= MMC_HS200_MAX_DTR) 7522385049dSSeungwon Jeon pwrclass_val = ext_csd->raw_pwr_cl_200_195; 753b87d8dbfSGirish K S break; 75493fc5a47SSubhash Jadavani case MMC_VDD_27_28: 75593fc5a47SSubhash Jadavani case MMC_VDD_28_29: 75693fc5a47SSubhash Jadavani case MMC_VDD_29_30: 75793fc5a47SSubhash Jadavani case MMC_VDD_30_31: 75893fc5a47SSubhash Jadavani case MMC_VDD_31_32: 759b87d8dbfSGirish K S case MMC_VDD_32_33: 760b87d8dbfSGirish K S case MMC_VDD_33_34: 761b87d8dbfSGirish K S case MMC_VDD_34_35: 762b87d8dbfSGirish K S case MMC_VDD_35_36: 7632385049dSSeungwon Jeon if (host->ios.clock <= MMC_HIGH_26_MAX_DTR) 7642385049dSSeungwon Jeon pwrclass_val = ext_csd->raw_pwr_cl_26_360; 7652385049dSSeungwon Jeon else if (host->ios.clock <= MMC_HIGH_52_MAX_DTR) 76660443712SFredrik Soderstedt pwrclass_val = (bus_width <= EXT_CSD_BUS_WIDTH_8) ? 7672385049dSSeungwon Jeon ext_csd->raw_pwr_cl_52_360 : 7682385049dSSeungwon Jeon ext_csd->raw_pwr_cl_ddr_52_360; 7692385049dSSeungwon Jeon else if (host->ios.clock <= MMC_HS200_MAX_DTR) 7702385049dSSeungwon Jeon pwrclass_val = ext_csd->raw_pwr_cl_200_360; 771b87d8dbfSGirish K S break; 772b87d8dbfSGirish K S default: 773b87d8dbfSGirish K S pr_warning("%s: Voltage range not supported " 774b87d8dbfSGirish K S "for power class.\n", mmc_hostname(host)); 775b87d8dbfSGirish K S return -EINVAL; 776b87d8dbfSGirish K S } 777b87d8dbfSGirish K S 778b87d8dbfSGirish K S if (bus_width & (EXT_CSD_BUS_WIDTH_8 | EXT_CSD_DDR_BUS_WIDTH_8)) 779b87d8dbfSGirish K S pwrclass_val = (pwrclass_val & EXT_CSD_PWR_CL_8BIT_MASK) >> 780b87d8dbfSGirish K S EXT_CSD_PWR_CL_8BIT_SHIFT; 781b87d8dbfSGirish K S else 782b87d8dbfSGirish K S pwrclass_val = (pwrclass_val & EXT_CSD_PWR_CL_4BIT_MASK) >> 783b87d8dbfSGirish K S EXT_CSD_PWR_CL_4BIT_SHIFT; 784b87d8dbfSGirish K S 785b87d8dbfSGirish K S /* If the power class is different from the default value */ 786b87d8dbfSGirish K S if (pwrclass_val > 0) { 787b87d8dbfSGirish K S err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 788b87d8dbfSGirish K S EXT_CSD_POWER_CLASS, 789b87d8dbfSGirish K S pwrclass_val, 79071fe3eb0SSeungwon Jeon card->ext_csd.generic_cmd6_time); 791b87d8dbfSGirish K S } 792b87d8dbfSGirish K S 793b87d8dbfSGirish K S return err; 794b87d8dbfSGirish K S } 795b87d8dbfSGirish K S 7962385049dSSeungwon Jeon static int mmc_select_powerclass(struct mmc_card *card) 7972385049dSSeungwon Jeon { 7982385049dSSeungwon Jeon struct mmc_host *host = card->host; 7992385049dSSeungwon Jeon u32 bus_width, ext_csd_bits; 8002385049dSSeungwon Jeon int err, ddr; 8012385049dSSeungwon Jeon 8022385049dSSeungwon Jeon /* Power class selection is supported for versions >= 4.0 */ 8032385049dSSeungwon Jeon if (card->csd.mmca_vsn < CSD_SPEC_VER_4) 8042385049dSSeungwon Jeon return 0; 8052385049dSSeungwon Jeon 8062385049dSSeungwon Jeon bus_width = host->ios.bus_width; 8072385049dSSeungwon Jeon /* Power class values are defined only for 4/8 bit bus */ 8082385049dSSeungwon Jeon if (bus_width == MMC_BUS_WIDTH_1) 8092385049dSSeungwon Jeon return 0; 8102385049dSSeungwon Jeon 8112385049dSSeungwon Jeon ddr = card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_52; 8122385049dSSeungwon Jeon if (ddr) 8132385049dSSeungwon Jeon ext_csd_bits = (bus_width == MMC_BUS_WIDTH_8) ? 8142385049dSSeungwon Jeon EXT_CSD_DDR_BUS_WIDTH_8 : EXT_CSD_DDR_BUS_WIDTH_4; 8152385049dSSeungwon Jeon else 8162385049dSSeungwon Jeon ext_csd_bits = (bus_width == MMC_BUS_WIDTH_8) ? 8172385049dSSeungwon Jeon EXT_CSD_BUS_WIDTH_8 : EXT_CSD_BUS_WIDTH_4; 8182385049dSSeungwon Jeon 8192385049dSSeungwon Jeon err = __mmc_select_powerclass(card, ext_csd_bits); 8202385049dSSeungwon Jeon if (err) 8212385049dSSeungwon Jeon pr_warn("%s: power class selection to bus width %d ddr %d failed\n", 8222385049dSSeungwon Jeon mmc_hostname(host), 1 << bus_width, ddr); 8232385049dSSeungwon Jeon 8242385049dSSeungwon Jeon return err; 8252385049dSSeungwon Jeon } 8262385049dSSeungwon Jeon 827b87d8dbfSGirish K S /* 828a4924c71SGirish K S * Selects the desired buswidth and switch to the HS200 mode 829a4924c71SGirish K S * if bus width set without error 830a4924c71SGirish K S */ 831a4924c71SGirish K S static int mmc_select_hs200(struct mmc_card *card) 832a4924c71SGirish K S { 83310942aa4SSeungwon Jeon int idx, err = -EINVAL; 834a4924c71SGirish K S struct mmc_host *host; 835a4924c71SGirish K S static unsigned ext_csd_bits[] = { 836a4924c71SGirish K S EXT_CSD_BUS_WIDTH_4, 837a4924c71SGirish K S EXT_CSD_BUS_WIDTH_8, 838a4924c71SGirish K S }; 839a4924c71SGirish K S static unsigned bus_widths[] = { 840a4924c71SGirish K S MMC_BUS_WIDTH_4, 841a4924c71SGirish K S MMC_BUS_WIDTH_8, 842a4924c71SGirish K S }; 843a4924c71SGirish K S 844a4924c71SGirish K S BUG_ON(!card); 845a4924c71SGirish K S 846a4924c71SGirish K S host = card->host; 847a4924c71SGirish K S 8482415c0efSSeungwon Jeon if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_2V) 849567c8903SJohan Rudholm err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120); 85010942aa4SSeungwon Jeon 8512415c0efSSeungwon Jeon if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_8V) 852567c8903SJohan Rudholm err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180); 853a4924c71SGirish K S 854a4924c71SGirish K S /* If fails try again during next card power cycle */ 855a4924c71SGirish K S if (err) 856a4924c71SGirish K S goto err; 857a4924c71SGirish K S 858a4924c71SGirish K S idx = (host->caps & MMC_CAP_8_BIT_DATA) ? 1 : 0; 859a4924c71SGirish K S 860a4924c71SGirish K S /* 861a4924c71SGirish K S * Unlike SD, MMC cards dont have a configuration register to notify 862a4924c71SGirish K S * supported bus width. So bus test command should be run to identify 863a4924c71SGirish K S * the supported bus width or compare the ext csd values of current 864a4924c71SGirish K S * bus width and ext csd values of 1 bit mode read earlier. 865a4924c71SGirish K S */ 866a4924c71SGirish K S for (; idx >= 0; idx--) { 867a4924c71SGirish K S 868a4924c71SGirish K S /* 869a4924c71SGirish K S * Host is capable of 8bit transfer, then switch 870a4924c71SGirish K S * the device to work in 8bit transfer mode. If the 871a4924c71SGirish K S * mmc switch command returns error then switch to 872a4924c71SGirish K S * 4bit transfer mode. On success set the corresponding 873a4924c71SGirish K S * bus width on the host. 874a4924c71SGirish K S */ 875a4924c71SGirish K S err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 876a4924c71SGirish K S EXT_CSD_BUS_WIDTH, 877a4924c71SGirish K S ext_csd_bits[idx], 878a4924c71SGirish K S card->ext_csd.generic_cmd6_time); 879a4924c71SGirish K S if (err) 880a4924c71SGirish K S continue; 881a4924c71SGirish K S 882a4924c71SGirish K S mmc_set_bus_width(card->host, bus_widths[idx]); 883a4924c71SGirish K S 884a4924c71SGirish K S if (!(host->caps & MMC_CAP_BUS_WIDTH_TEST)) 885a4924c71SGirish K S err = mmc_compare_ext_csds(card, bus_widths[idx]); 886a4924c71SGirish K S else 887a4924c71SGirish K S err = mmc_bus_test(card, bus_widths[idx]); 888a4924c71SGirish K S if (!err) 889a4924c71SGirish K S break; 890a4924c71SGirish K S } 891a4924c71SGirish K S 892a4924c71SGirish K S /* switch to HS200 mode if bus width set successfully */ 893a4924c71SGirish K S if (!err) 8944509f847SUlf Hansson err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 89557de31f6SUlf Hansson EXT_CSD_HS_TIMING, 2, 89657de31f6SUlf Hansson card->ext_csd.generic_cmd6_time, 89757de31f6SUlf Hansson true, true, true); 898a4924c71SGirish K S err: 899a4924c71SGirish K S return err; 900a4924c71SGirish K S } 901a4924c71SGirish K S 902a4924c71SGirish K S /* 9036abaa0c9SPierre Ossman * Handle the detection and initialisation of a card. 9046abaa0c9SPierre Ossman * 9058769392bSDeepak Saxena * In the case of a resume, "oldcard" will contain the card 9066abaa0c9SPierre Ossman * we're trying to reinitialise. 9077ea239d9SPierre Ossman */ 9088c75deaeSPierre Ossman static int mmc_init_card(struct mmc_host *host, u32 ocr, 9096abaa0c9SPierre Ossman struct mmc_card *oldcard) 9107ea239d9SPierre Ossman { 9117ea239d9SPierre Ossman struct mmc_card *card; 91225d5c699SPhilip Rakity int err, ddr = 0; 9137ea239d9SPierre Ossman u32 cid[4]; 9147ea239d9SPierre Ossman unsigned int max_dtr; 915b676f039SPhilip Rakity u32 rocr; 91608ee80ccSPhilip Rakity u8 *ext_csd = NULL; 9177ea239d9SPierre Ossman 9187ea239d9SPierre Ossman BUG_ON(!host); 919d84075c8SPierre Ossman WARN_ON(!host->claimed); 9207ea239d9SPierre Ossman 92144669034SStefan Nilsson XK /* Set correct bus mode for MMC before attempting init */ 92244669034SStefan Nilsson XK if (!mmc_host_is_spi(host)) 92344669034SStefan Nilsson XK mmc_set_bus_mode(host, MMC_BUSMODE_OPENDRAIN); 92444669034SStefan Nilsson XK 9257ea239d9SPierre Ossman /* 9267ea239d9SPierre Ossman * Since we're changing the OCR value, we seem to 9277ea239d9SPierre Ossman * need to tell some cards to go back to the idle 9287ea239d9SPierre Ossman * state. We wait 1ms to give cards time to 9297ea239d9SPierre Ossman * respond. 930c3805467SBalaji T K * mmc_go_idle is needed for eMMC that are asleep 9317ea239d9SPierre Ossman */ 9327ea239d9SPierre Ossman mmc_go_idle(host); 9337ea239d9SPierre Ossman 9347ea239d9SPierre Ossman /* The extra bit indicates that we support high capacity */ 935b676f039SPhilip Rakity err = mmc_send_op_cond(host, ocr | (1 << 30), &rocr); 93617b0429dSPierre Ossman if (err) 9376abaa0c9SPierre Ossman goto err; 9387ea239d9SPierre Ossman 9397ea239d9SPierre Ossman /* 940af517150SDavid Brownell * For SPI, enable CRC as appropriate. 941af517150SDavid Brownell */ 942af517150SDavid Brownell if (mmc_host_is_spi(host)) { 943af517150SDavid Brownell err = mmc_spi_set_crc(host, use_spi_crc); 944af517150SDavid Brownell if (err) 945af517150SDavid Brownell goto err; 946af517150SDavid Brownell } 947af517150SDavid Brownell 948af517150SDavid Brownell /* 9497ea239d9SPierre Ossman * Fetch CID from card. 9507ea239d9SPierre Ossman */ 951af517150SDavid Brownell if (mmc_host_is_spi(host)) 952af517150SDavid Brownell err = mmc_send_cid(host, cid); 953af517150SDavid Brownell else 9547ea239d9SPierre Ossman err = mmc_all_send_cid(host, cid); 95517b0429dSPierre Ossman if (err) 9567ea239d9SPierre Ossman goto err; 9577ea239d9SPierre Ossman 9586abaa0c9SPierre Ossman if (oldcard) { 959adf66a0dSPierre Ossman if (memcmp(cid, oldcard->raw_cid, sizeof(cid)) != 0) { 960adf66a0dSPierre Ossman err = -ENOENT; 9616abaa0c9SPierre Ossman goto err; 962adf66a0dSPierre Ossman } 9636abaa0c9SPierre Ossman 9646abaa0c9SPierre Ossman card = oldcard; 9656abaa0c9SPierre Ossman } else { 9667ea239d9SPierre Ossman /* 9677ea239d9SPierre Ossman * Allocate card structure. 9687ea239d9SPierre Ossman */ 96951ec92e2SPierre Ossman card = mmc_alloc_card(host, &mmc_type); 970adf66a0dSPierre Ossman if (IS_ERR(card)) { 971adf66a0dSPierre Ossman err = PTR_ERR(card); 9727ea239d9SPierre Ossman goto err; 973adf66a0dSPierre Ossman } 9747ea239d9SPierre Ossman 97569041150SUlf Hansson card->ocr = ocr; 9767ea239d9SPierre Ossman card->type = MMC_TYPE_MMC; 9777ea239d9SPierre Ossman card->rca = 1; 9787ea239d9SPierre Ossman memcpy(card->raw_cid, cid, sizeof(card->raw_cid)); 9796abaa0c9SPierre Ossman } 9807ea239d9SPierre Ossman 9817ea239d9SPierre Ossman /* 982af517150SDavid Brownell * For native busses: set card RCA and quit open drain mode. 9837ea239d9SPierre Ossman */ 984af517150SDavid Brownell if (!mmc_host_is_spi(host)) { 9857ea239d9SPierre Ossman err = mmc_set_relative_addr(card); 98617b0429dSPierre Ossman if (err) 9877ea239d9SPierre Ossman goto free_card; 9887ea239d9SPierre Ossman 9897ea239d9SPierre Ossman mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL); 990af517150SDavid Brownell } 9917ea239d9SPierre Ossman 9926abaa0c9SPierre Ossman if (!oldcard) { 9937ea239d9SPierre Ossman /* 9947ea239d9SPierre Ossman * Fetch CSD from card. 9957ea239d9SPierre Ossman */ 9967ea239d9SPierre Ossman err = mmc_send_csd(card, card->raw_csd); 99717b0429dSPierre Ossman if (err) 9987ea239d9SPierre Ossman goto free_card; 9997ea239d9SPierre Ossman 1000bd766312SPierre Ossman err = mmc_decode_csd(card); 1001adf66a0dSPierre Ossman if (err) 1002bd766312SPierre Ossman goto free_card; 1003bd766312SPierre Ossman err = mmc_decode_cid(card); 1004adf66a0dSPierre Ossman if (err) 1005bd766312SPierre Ossman goto free_card; 10066abaa0c9SPierre Ossman } 10077ea239d9SPierre Ossman 10087ea239d9SPierre Ossman /* 100989a73cf5SPierre Ossman * Select card, as all following commands rely on that. 10107ea239d9SPierre Ossman */ 1011af517150SDavid Brownell if (!mmc_host_is_spi(host)) { 10127ea239d9SPierre Ossman err = mmc_select_card(card); 101317b0429dSPierre Ossman if (err) 10147ea239d9SPierre Ossman goto free_card; 1015af517150SDavid Brownell } 10167ea239d9SPierre Ossman 10176abaa0c9SPierre Ossman if (!oldcard) { 101889a73cf5SPierre Ossman /* 1019af517150SDavid Brownell * Fetch and process extended CSD. 102089a73cf5SPierre Ossman */ 102108ee80ccSPhilip Rakity 102208ee80ccSPhilip Rakity err = mmc_get_ext_csd(card, &ext_csd); 102308ee80ccSPhilip Rakity if (err) 102408ee80ccSPhilip Rakity goto free_card; 102508ee80ccSPhilip Rakity err = mmc_read_ext_csd(card, ext_csd); 102617b0429dSPierre Ossman if (err) 10277ea239d9SPierre Ossman goto free_card; 1028b676f039SPhilip Rakity 1029b676f039SPhilip Rakity /* If doing byte addressing, check if required to do sector 1030b676f039SPhilip Rakity * addressing. Handle the case of <2GB cards needing sector 1031b676f039SPhilip Rakity * addressing. See section 8.1 JEDEC Standard JED84-A441; 1032b676f039SPhilip Rakity * ocr register has bit 30 set for sector addressing. 1033b676f039SPhilip Rakity */ 1034b676f039SPhilip Rakity if (!(mmc_card_blockaddr(card)) && (rocr & (1<<30))) 1035b676f039SPhilip Rakity mmc_card_set_blockaddr(card); 1036b676f039SPhilip Rakity 1037dfe86cbaSAdrian Hunter /* Erase size depends on CSD and Extended CSD */ 1038dfe86cbaSAdrian Hunter mmc_set_erase_size(card); 10396abaa0c9SPierre Ossman } 10407ea239d9SPierre Ossman 10417ea239d9SPierre Ossman /* 1042709de99dSChuanxiao Dong * If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF 1043709de99dSChuanxiao Dong * bit. This bit will be lost every time after a reset or power off. 1044709de99dSChuanxiao Dong */ 104583bb24aaSAdrian Hunter if (card->ext_csd.enhanced_area_en || 104683bb24aaSAdrian Hunter (card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) { 1047709de99dSChuanxiao Dong err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 1048b23cf0bdSSeungwon Jeon EXT_CSD_ERASE_GROUP_DEF, 1, 1049b23cf0bdSSeungwon Jeon card->ext_csd.generic_cmd6_time); 1050709de99dSChuanxiao Dong 1051709de99dSChuanxiao Dong if (err && err != -EBADMSG) 1052709de99dSChuanxiao Dong goto free_card; 1053709de99dSChuanxiao Dong 1054709de99dSChuanxiao Dong if (err) { 1055709de99dSChuanxiao Dong err = 0; 1056709de99dSChuanxiao Dong /* 1057709de99dSChuanxiao Dong * Just disable enhanced area off & sz 1058709de99dSChuanxiao Dong * will try to enable ERASE_GROUP_DEF 1059709de99dSChuanxiao Dong * during next time reinit 1060709de99dSChuanxiao Dong */ 1061709de99dSChuanxiao Dong card->ext_csd.enhanced_area_offset = -EINVAL; 1062709de99dSChuanxiao Dong card->ext_csd.enhanced_area_size = -EINVAL; 1063709de99dSChuanxiao Dong } else { 1064709de99dSChuanxiao Dong card->ext_csd.erase_group_def = 1; 1065709de99dSChuanxiao Dong /* 1066709de99dSChuanxiao Dong * enable ERASE_GRP_DEF successfully. 1067709de99dSChuanxiao Dong * This will affect the erase size, so 1068709de99dSChuanxiao Dong * here need to reset erase size 1069709de99dSChuanxiao Dong */ 1070709de99dSChuanxiao Dong mmc_set_erase_size(card); 1071709de99dSChuanxiao Dong } 1072709de99dSChuanxiao Dong } 1073709de99dSChuanxiao Dong 1074709de99dSChuanxiao Dong /* 107541e2a489SPhilip Rakity * Ensure eMMC user default partition is enabled 107641e2a489SPhilip Rakity */ 1077371a689fSAndrei Warkentin if (card->ext_csd.part_config & EXT_CSD_PART_CONFIG_ACC_MASK) { 1078371a689fSAndrei Warkentin card->ext_csd.part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK; 1079371a689fSAndrei Warkentin err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONFIG, 1080371a689fSAndrei Warkentin card->ext_csd.part_config, 1081371a689fSAndrei Warkentin card->ext_csd.part_time); 1082371a689fSAndrei Warkentin if (err && err != -EBADMSG) 1083371a689fSAndrei Warkentin goto free_card; 108441e2a489SPhilip Rakity } 108541e2a489SPhilip Rakity 108641e2a489SPhilip Rakity /* 108743235679SUlf Hansson * Enable power_off_notification byte in the ext_csd register 1088bec8726aSGirish K S */ 108943235679SUlf Hansson if (card->ext_csd.rev >= 6) { 1090bec8726aSGirish K S err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 1091bec8726aSGirish K S EXT_CSD_POWER_OFF_NOTIFICATION, 1092bec8726aSGirish K S EXT_CSD_POWER_ON, 1093bec8726aSGirish K S card->ext_csd.generic_cmd6_time); 1094bec8726aSGirish K S if (err && err != -EBADMSG) 1095bec8726aSGirish K S goto free_card; 1096bec8726aSGirish K S 109796a85d54SGirish K S /* 109896a85d54SGirish K S * The err can be -EBADMSG or 0, 109996a85d54SGirish K S * so check for success and update the flag 110096a85d54SGirish K S */ 1101bec8726aSGirish K S if (!err) 1102e6c08586SUlf Hansson card->ext_csd.power_off_notification = EXT_CSD_POWER_ON; 110396a85d54SGirish K S } 1104bec8726aSGirish K S 1105bec8726aSGirish K S /* 110689a73cf5SPierre Ossman * Activate high speed (if supported) 110789a73cf5SPierre Ossman */ 1108a4924c71SGirish K S if (card->ext_csd.hs_max_dtr != 0) { 1109a4924c71SGirish K S err = 0; 11102415c0efSSeungwon Jeon if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200) 1111a4924c71SGirish K S err = mmc_select_hs200(card); 11122415c0efSSeungwon Jeon else if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS) 11134509f847SUlf Hansson err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 11147488e924SGirish K S EXT_CSD_HS_TIMING, 1, 11154509f847SUlf Hansson card->ext_csd.generic_cmd6_time, 11164509f847SUlf Hansson true, true, true); 1117a4924c71SGirish K S 1118ef0b27d4SAdrian Hunter if (err && err != -EBADMSG) 111989a73cf5SPierre Ossman goto free_card; 112089a73cf5SPierre Ossman 1121ef0b27d4SAdrian Hunter if (err) { 1122a3c76eb9SGirish K S pr_warning("%s: switch to highspeed failed\n", 1123ef0b27d4SAdrian Hunter mmc_hostname(card->host)); 1124ef0b27d4SAdrian Hunter err = 0; 1125ef0b27d4SAdrian Hunter } else { 11262415c0efSSeungwon Jeon if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200) 1127a4924c71SGirish K S mmc_set_timing(card->host, 1128a4924c71SGirish K S MMC_TIMING_MMC_HS200); 11292415c0efSSeungwon Jeon else 113089a73cf5SPierre Ossman mmc_set_timing(card->host, MMC_TIMING_MMC_HS); 113189a73cf5SPierre Ossman } 1132ef0b27d4SAdrian Hunter } 113389a73cf5SPierre Ossman 113489a73cf5SPierre Ossman /* 11357ea239d9SPierre Ossman * Compute bus speed. 11367ea239d9SPierre Ossman */ 11377ea239d9SPierre Ossman max_dtr = (unsigned int)-1; 11387ea239d9SPierre Ossman 1139cdc99179SSeungwon Jeon if (mmc_card_hs(card) || mmc_card_hs200(card)) { 11407ea239d9SPierre Ossman if (max_dtr > card->ext_csd.hs_max_dtr) 11417ea239d9SPierre Ossman max_dtr = card->ext_csd.hs_max_dtr; 1142cdc99179SSeungwon Jeon if (mmc_card_hs(card) && (max_dtr > 52000000)) 1143ccb52a00SAl Cooper max_dtr = 52000000; 11447ea239d9SPierre Ossman } else if (max_dtr > card->csd.max_dtr) { 11457ea239d9SPierre Ossman max_dtr = card->csd.max_dtr; 11467ea239d9SPierre Ossman } 11477ea239d9SPierre Ossman 11487ea239d9SPierre Ossman mmc_set_clock(host, max_dtr); 11497ea239d9SPierre Ossman 115089a73cf5SPierre Ossman /* 11510f8d8ea6SAdrian Hunter * Indicate DDR mode (if supported). 1152dfc13e84SHanumath Prasad */ 11532415c0efSSeungwon Jeon if (mmc_card_hs(card)) 11542415c0efSSeungwon Jeon ddr = card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_52; 1155dfc13e84SHanumath Prasad 1156dfc13e84SHanumath Prasad /* 1157a4924c71SGirish K S * Indicate HS200 SDR mode (if supported). 1158a4924c71SGirish K S */ 1159a4924c71SGirish K S if (mmc_card_hs200(card)) { 1160a4924c71SGirish K S u32 ext_csd_bits; 1161a4924c71SGirish K S u32 bus_width = card->host->ios.bus_width; 1162a4924c71SGirish K S 1163a4924c71SGirish K S /* 1164a4924c71SGirish K S * For devices supporting HS200 mode, the bus width has 1165a4924c71SGirish K S * to be set before executing the tuning function. If 1166a4924c71SGirish K S * set before tuning, then device will respond with CRC 1167a4924c71SGirish K S * errors for responses on CMD line. So for HS200 the 1168a4924c71SGirish K S * sequence will be 1169a4924c71SGirish K S * 1. set bus width 4bit / 8 bit (1 bit not supported) 1170a4924c71SGirish K S * 2. switch to HS200 mode 1171a4924c71SGirish K S * 3. set the clock to > 52Mhz <=200MHz and 1172a4924c71SGirish K S * 4. execute tuning for HS200 1173a4924c71SGirish K S */ 11742415c0efSSeungwon Jeon if (card->host->ops->execute_tuning) { 117552d0974eSSubhash Jadavani mmc_host_clk_hold(card->host); 1176a4924c71SGirish K S err = card->host->ops->execute_tuning(card->host, 1177a4924c71SGirish K S MMC_SEND_TUNING_BLOCK_HS200); 117852d0974eSSubhash Jadavani mmc_host_clk_release(card->host); 117952d0974eSSubhash Jadavani } 1180a4924c71SGirish K S if (err) { 1181a4924c71SGirish K S pr_warning("%s: tuning execution failed\n", 1182a4924c71SGirish K S mmc_hostname(card->host)); 1183a4924c71SGirish K S goto err; 1184a4924c71SGirish K S } 1185a4924c71SGirish K S 1186a4924c71SGirish K S ext_csd_bits = (bus_width == MMC_BUS_WIDTH_8) ? 1187a4924c71SGirish K S EXT_CSD_BUS_WIDTH_8 : EXT_CSD_BUS_WIDTH_4; 1188a4924c71SGirish K S } 1189a4924c71SGirish K S 1190a4924c71SGirish K S /* 11910f8d8ea6SAdrian Hunter * Activate wide bus and DDR (if supported). 119289a73cf5SPierre Ossman */ 1193a4924c71SGirish K S if (!mmc_card_hs200(card) && 11947488e924SGirish K S (card->csd.mmca_vsn >= CSD_SPEC_VER_4) && 1195b30f8af3SJarkko Lavinen (host->caps & (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA))) { 119622113efdSAries Lee static unsigned ext_csd_bits[][2] = { 119722113efdSAries Lee { EXT_CSD_BUS_WIDTH_8, EXT_CSD_DDR_BUS_WIDTH_8 }, 119822113efdSAries Lee { EXT_CSD_BUS_WIDTH_4, EXT_CSD_DDR_BUS_WIDTH_4 }, 119922113efdSAries Lee { EXT_CSD_BUS_WIDTH_1, EXT_CSD_BUS_WIDTH_1 }, 120022113efdSAries Lee }; 120122113efdSAries Lee static unsigned bus_widths[] = { 120222113efdSAries Lee MMC_BUS_WIDTH_8, 120322113efdSAries Lee MMC_BUS_WIDTH_4, 120422113efdSAries Lee MMC_BUS_WIDTH_1 120522113efdSAries Lee }; 120622113efdSAries Lee unsigned idx, bus_width = 0; 1207b30f8af3SJarkko Lavinen 120822113efdSAries Lee if (host->caps & MMC_CAP_8_BIT_DATA) 120922113efdSAries Lee idx = 0; 1210dfc13e84SHanumath Prasad else 121122113efdSAries Lee idx = 1; 121222113efdSAries Lee for (; idx < ARRAY_SIZE(bus_widths); idx++) { 121322113efdSAries Lee bus_width = bus_widths[idx]; 121422113efdSAries Lee if (bus_width == MMC_BUS_WIDTH_1) 121522113efdSAries Lee ddr = 0; /* no DDR for 1-bit width */ 1216b87d8dbfSGirish K S 121722113efdSAries Lee err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 121822113efdSAries Lee EXT_CSD_BUS_WIDTH, 1219d3a8d95dSAndrei Warkentin ext_csd_bits[idx][0], 1220b23cf0bdSSeungwon Jeon card->ext_csd.generic_cmd6_time); 122122113efdSAries Lee if (!err) { 12224c4cb171SPhilip Rakity mmc_set_bus_width(card->host, bus_width); 122308ee80ccSPhilip Rakity 122422113efdSAries Lee /* 122522113efdSAries Lee * If controller can't handle bus width test, 122608ee80ccSPhilip Rakity * compare ext_csd previously read in 1 bit mode 122708ee80ccSPhilip Rakity * against ext_csd at new bus width 122822113efdSAries Lee */ 122922113efdSAries Lee if (!(host->caps & MMC_CAP_BUS_WIDTH_TEST)) 123008ee80ccSPhilip Rakity err = mmc_compare_ext_csds(card, 123108ee80ccSPhilip Rakity bus_width); 123208ee80ccSPhilip Rakity else 123322113efdSAries Lee err = mmc_bus_test(card, bus_width); 123422113efdSAries Lee if (!err) 123522113efdSAries Lee break; 123622113efdSAries Lee } 1237b30f8af3SJarkko Lavinen } 1238b30f8af3SJarkko Lavinen 123922113efdSAries Lee if (!err && ddr) { 124089a73cf5SPierre Ossman err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 124122113efdSAries Lee EXT_CSD_BUS_WIDTH, 1242d3a8d95dSAndrei Warkentin ext_csd_bits[idx][1], 1243b23cf0bdSSeungwon Jeon card->ext_csd.generic_cmd6_time); 124422113efdSAries Lee } 1245ef0b27d4SAdrian Hunter if (err) { 1246a3c76eb9SGirish K S pr_warning("%s: switch to bus width %d ddr %d " 1247ef0b27d4SAdrian Hunter "failed\n", mmc_hostname(card->host), 12480f8d8ea6SAdrian Hunter 1 << bus_width, ddr); 124922113efdSAries Lee goto free_card; 125022113efdSAries Lee } else if (ddr) { 12514c4cb171SPhilip Rakity /* 12524c4cb171SPhilip Rakity * eMMC cards can support 3.3V to 1.2V i/o (vccq) 12534c4cb171SPhilip Rakity * signaling. 12544c4cb171SPhilip Rakity * 12554c4cb171SPhilip Rakity * EXT_CSD_CARD_TYPE_DDR_1_8V means 3.3V or 1.8V vccq. 12564c4cb171SPhilip Rakity * 12574c4cb171SPhilip Rakity * 1.8V vccq at 3.3V core voltage (vcc) is not required 12584c4cb171SPhilip Rakity * in the JEDEC spec for DDR. 12594c4cb171SPhilip Rakity * 12604c4cb171SPhilip Rakity * Do not force change in vccq since we are obviously 12614c4cb171SPhilip Rakity * working and no change to vccq is needed. 12624c4cb171SPhilip Rakity * 12634c4cb171SPhilip Rakity * WARNING: eMMC rules are NOT the same as SD DDR 12644c4cb171SPhilip Rakity */ 12652415c0efSSeungwon Jeon if (ddr & EXT_CSD_CARD_TYPE_DDR_1_2V) { 1266567c8903SJohan Rudholm err = __mmc_set_signal_voltage(host, 1267567c8903SJohan Rudholm MMC_SIGNAL_VOLTAGE_120); 12684c4cb171SPhilip Rakity if (err) 12694c4cb171SPhilip Rakity goto err; 12704c4cb171SPhilip Rakity } 127179f7ae7cSSeungwon Jeon mmc_set_timing(card->host, MMC_TIMING_MMC_DDR52); 12724c4cb171SPhilip Rakity mmc_set_bus_width(card->host, bus_width); 127389a73cf5SPierre Ossman } 1274ef0b27d4SAdrian Hunter } 127589a73cf5SPierre Ossman 1276881d1c25SSeungwon Jeon /* 12772385049dSSeungwon Jeon * Choose the power class with selected bus interface 12782385049dSSeungwon Jeon */ 12792385049dSSeungwon Jeon mmc_select_powerclass(card); 12802385049dSSeungwon Jeon 12812385049dSSeungwon Jeon /* 128252d0974eSSubhash Jadavani * Enable HPI feature (if supported) 128352d0974eSSubhash Jadavani */ 128452d0974eSSubhash Jadavani if (card->ext_csd.hpi) { 128552d0974eSSubhash Jadavani err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 128652d0974eSSubhash Jadavani EXT_CSD_HPI_MGMT, 1, 128752d0974eSSubhash Jadavani card->ext_csd.generic_cmd6_time); 128852d0974eSSubhash Jadavani if (err && err != -EBADMSG) 128952d0974eSSubhash Jadavani goto free_card; 129052d0974eSSubhash Jadavani if (err) { 129152d0974eSSubhash Jadavani pr_warning("%s: Enabling HPI failed\n", 129252d0974eSSubhash Jadavani mmc_hostname(card->host)); 129352d0974eSSubhash Jadavani err = 0; 129452d0974eSSubhash Jadavani } else 129552d0974eSSubhash Jadavani card->ext_csd.hpi_en = 1; 129652d0974eSSubhash Jadavani } 129752d0974eSSubhash Jadavani 129852d0974eSSubhash Jadavani /* 1299881d1c25SSeungwon Jeon * If cache size is higher than 0, this indicates 1300881d1c25SSeungwon Jeon * the existence of cache and it can be turned on. 1301881d1c25SSeungwon Jeon */ 13027536d3f8SUlf Hansson if (card->ext_csd.cache_size > 0) { 1303881d1c25SSeungwon Jeon err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 13048bc0678bSSeungwon Jeon EXT_CSD_CACHE_CTRL, 1, 13058bc0678bSSeungwon Jeon card->ext_csd.generic_cmd6_time); 1306881d1c25SSeungwon Jeon if (err && err != -EBADMSG) 1307881d1c25SSeungwon Jeon goto free_card; 1308881d1c25SSeungwon Jeon 1309881d1c25SSeungwon Jeon /* 1310881d1c25SSeungwon Jeon * Only if no error, cache is turned on successfully. 1311881d1c25SSeungwon Jeon */ 13128bc0678bSSeungwon Jeon if (err) { 13138bc0678bSSeungwon Jeon pr_warning("%s: Cache is supported, " 13148bc0678bSSeungwon Jeon "but failed to turn on (%d)\n", 13158bc0678bSSeungwon Jeon mmc_hostname(card->host), err); 13168bc0678bSSeungwon Jeon card->ext_csd.cache_ctrl = 0; 13178bc0678bSSeungwon Jeon err = 0; 13188bc0678bSSeungwon Jeon } else { 13198bc0678bSSeungwon Jeon card->ext_csd.cache_ctrl = 1; 13208bc0678bSSeungwon Jeon } 1321881d1c25SSeungwon Jeon } 1322881d1c25SSeungwon Jeon 1323abd9ac14SSeungwon Jeon /* 1324abd9ac14SSeungwon Jeon * The mandatory minimum values are defined for packed command. 1325abd9ac14SSeungwon Jeon * read: 5, write: 3 1326abd9ac14SSeungwon Jeon */ 1327abd9ac14SSeungwon Jeon if (card->ext_csd.max_packed_writes >= 3 && 1328abd9ac14SSeungwon Jeon card->ext_csd.max_packed_reads >= 5 && 1329abd9ac14SSeungwon Jeon host->caps2 & MMC_CAP2_PACKED_CMD) { 1330abd9ac14SSeungwon Jeon err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 1331abd9ac14SSeungwon Jeon EXT_CSD_EXP_EVENTS_CTRL, 1332abd9ac14SSeungwon Jeon EXT_CSD_PACKED_EVENT_EN, 1333abd9ac14SSeungwon Jeon card->ext_csd.generic_cmd6_time); 1334abd9ac14SSeungwon Jeon if (err && err != -EBADMSG) 1335abd9ac14SSeungwon Jeon goto free_card; 1336abd9ac14SSeungwon Jeon if (err) { 1337abd9ac14SSeungwon Jeon pr_warn("%s: Enabling packed event failed\n", 1338abd9ac14SSeungwon Jeon mmc_hostname(card->host)); 1339abd9ac14SSeungwon Jeon card->ext_csd.packed_event_en = 0; 1340abd9ac14SSeungwon Jeon err = 0; 1341abd9ac14SSeungwon Jeon } else { 1342abd9ac14SSeungwon Jeon card->ext_csd.packed_event_en = 1; 1343abd9ac14SSeungwon Jeon } 1344abd9ac14SSeungwon Jeon } 1345abd9ac14SSeungwon Jeon 13466abaa0c9SPierre Ossman if (!oldcard) 13477ea239d9SPierre Ossman host->card = card; 13487ea239d9SPierre Ossman 134908ee80ccSPhilip Rakity mmc_free_ext_csd(ext_csd); 135017b0429dSPierre Ossman return 0; 13516abaa0c9SPierre Ossman 13526abaa0c9SPierre Ossman free_card: 13536abaa0c9SPierre Ossman if (!oldcard) 13546abaa0c9SPierre Ossman mmc_remove_card(card); 13556abaa0c9SPierre Ossman err: 135608ee80ccSPhilip Rakity mmc_free_ext_csd(ext_csd); 13576abaa0c9SPierre Ossman 1358adf66a0dSPierre Ossman return err; 13596abaa0c9SPierre Ossman } 13606abaa0c9SPierre Ossman 136107a68216SUlf Hansson static int mmc_can_sleep(struct mmc_card *card) 136207a68216SUlf Hansson { 136307a68216SUlf Hansson return (card && card->ext_csd.rev >= 3); 136407a68216SUlf Hansson } 136507a68216SUlf Hansson 136607a68216SUlf Hansson static int mmc_sleep(struct mmc_host *host) 136707a68216SUlf Hansson { 136807a68216SUlf Hansson struct mmc_command cmd = {0}; 136907a68216SUlf Hansson struct mmc_card *card = host->card; 1370cb962e04SUlf Hansson unsigned int timeout_ms = DIV_ROUND_UP(card->ext_csd.sa_timeout, 10000); 137107a68216SUlf Hansson int err; 137207a68216SUlf Hansson 137307a68216SUlf Hansson err = mmc_deselect_cards(host); 137407a68216SUlf Hansson if (err) 137507a68216SUlf Hansson return err; 137607a68216SUlf Hansson 137707a68216SUlf Hansson cmd.opcode = MMC_SLEEP_AWAKE; 137807a68216SUlf Hansson cmd.arg = card->rca << 16; 137907a68216SUlf Hansson cmd.arg |= 1 << 15; 138007a68216SUlf Hansson 1381cb962e04SUlf Hansson /* 1382cb962e04SUlf Hansson * If the max_busy_timeout of the host is specified, validate it against 1383cb962e04SUlf Hansson * the sleep cmd timeout. A failure means we need to prevent the host 1384cb962e04SUlf Hansson * from doing hw busy detection, which is done by converting to a R1 1385cb962e04SUlf Hansson * response instead of a R1B. 1386cb962e04SUlf Hansson */ 1387cb962e04SUlf Hansson if (host->max_busy_timeout && (timeout_ms > host->max_busy_timeout)) { 1388cb962e04SUlf Hansson cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1389cb962e04SUlf Hansson } else { 139007a68216SUlf Hansson cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; 1391cb962e04SUlf Hansson cmd.busy_timeout = timeout_ms; 1392cb962e04SUlf Hansson } 1393cb962e04SUlf Hansson 139407a68216SUlf Hansson err = mmc_wait_for_cmd(host, &cmd, 0); 139507a68216SUlf Hansson if (err) 139607a68216SUlf Hansson return err; 139707a68216SUlf Hansson 139807a68216SUlf Hansson /* 139907a68216SUlf Hansson * If the host does not wait while the card signals busy, then we will 140007a68216SUlf Hansson * will have to wait the sleep/awake timeout. Note, we cannot use the 140107a68216SUlf Hansson * SEND_STATUS command to poll the status because that command (and most 140207a68216SUlf Hansson * others) is invalid while the card sleeps. 140307a68216SUlf Hansson */ 1404cb962e04SUlf Hansson if (!cmd.busy_timeout || !(host->caps & MMC_CAP_WAIT_WHILE_BUSY)) 1405cb962e04SUlf Hansson mmc_delay(timeout_ms); 140607a68216SUlf Hansson 140707a68216SUlf Hansson return err; 140807a68216SUlf Hansson } 140907a68216SUlf Hansson 1410e6c08586SUlf Hansson static int mmc_can_poweroff_notify(const struct mmc_card *card) 1411e6c08586SUlf Hansson { 1412e6c08586SUlf Hansson return card && 1413e6c08586SUlf Hansson mmc_card_mmc(card) && 1414e6c08586SUlf Hansson (card->ext_csd.power_off_notification == EXT_CSD_POWER_ON); 1415e6c08586SUlf Hansson } 1416e6c08586SUlf Hansson 1417e6c08586SUlf Hansson static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type) 1418e6c08586SUlf Hansson { 1419e6c08586SUlf Hansson unsigned int timeout = card->ext_csd.generic_cmd6_time; 1420e6c08586SUlf Hansson int err; 1421e6c08586SUlf Hansson 1422e6c08586SUlf Hansson /* Use EXT_CSD_POWER_OFF_SHORT as default notification type. */ 1423e6c08586SUlf Hansson if (notify_type == EXT_CSD_POWER_OFF_LONG) 1424e6c08586SUlf Hansson timeout = card->ext_csd.power_off_longtime; 1425e6c08586SUlf Hansson 1426878e200bSUlf Hansson err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, 1427e6c08586SUlf Hansson EXT_CSD_POWER_OFF_NOTIFICATION, 14284509f847SUlf Hansson notify_type, timeout, true, false, false); 1429e6c08586SUlf Hansson if (err) 1430e6c08586SUlf Hansson pr_err("%s: Power Off Notification timed out, %u\n", 1431e6c08586SUlf Hansson mmc_hostname(card->host), timeout); 1432e6c08586SUlf Hansson 1433e6c08586SUlf Hansson /* Disable the power off notification after the switch operation. */ 1434e6c08586SUlf Hansson card->ext_csd.power_off_notification = EXT_CSD_NO_POWER_NOTIFICATION; 1435e6c08586SUlf Hansson 1436e6c08586SUlf Hansson return err; 1437e6c08586SUlf Hansson } 1438e6c08586SUlf Hansson 14396abaa0c9SPierre Ossman /* 14406abaa0c9SPierre Ossman * Host is being removed. Free up the current card. 14416abaa0c9SPierre Ossman */ 14426abaa0c9SPierre Ossman static void mmc_remove(struct mmc_host *host) 14436abaa0c9SPierre Ossman { 14446abaa0c9SPierre Ossman BUG_ON(!host); 14456abaa0c9SPierre Ossman BUG_ON(!host->card); 14466abaa0c9SPierre Ossman 14476abaa0c9SPierre Ossman mmc_remove_card(host->card); 14486abaa0c9SPierre Ossman host->card = NULL; 14496abaa0c9SPierre Ossman } 14506abaa0c9SPierre Ossman 14516abaa0c9SPierre Ossman /* 1452d3049504SAdrian Hunter * Card detection - card is alive. 1453d3049504SAdrian Hunter */ 1454d3049504SAdrian Hunter static int mmc_alive(struct mmc_host *host) 1455d3049504SAdrian Hunter { 1456d3049504SAdrian Hunter return mmc_send_status(host->card, NULL); 1457d3049504SAdrian Hunter } 1458d3049504SAdrian Hunter 1459d3049504SAdrian Hunter /* 14606abaa0c9SPierre Ossman * Card detection callback from host. 14616abaa0c9SPierre Ossman */ 14626abaa0c9SPierre Ossman static void mmc_detect(struct mmc_host *host) 14636abaa0c9SPierre Ossman { 14646abaa0c9SPierre Ossman int err; 14656abaa0c9SPierre Ossman 14666abaa0c9SPierre Ossman BUG_ON(!host); 14676abaa0c9SPierre Ossman BUG_ON(!host->card); 14686abaa0c9SPierre Ossman 1469e94cfef6SUlf Hansson mmc_get_card(host->card); 14706abaa0c9SPierre Ossman 14716abaa0c9SPierre Ossman /* 14726abaa0c9SPierre Ossman * Just check if our card has been removed. 14736abaa0c9SPierre Ossman */ 1474d3049504SAdrian Hunter err = _mmc_detect_card_removed(host); 14756abaa0c9SPierre Ossman 1476e94cfef6SUlf Hansson mmc_put_card(host->card); 14777ea239d9SPierre Ossman 147817b0429dSPierre Ossman if (err) { 14794101c16aSPierre Ossman mmc_remove(host); 14806abaa0c9SPierre Ossman 14816abaa0c9SPierre Ossman mmc_claim_host(host); 14826abaa0c9SPierre Ossman mmc_detach_bus(host); 14837f7e4129SUlf Hansson mmc_power_off(host); 14846abaa0c9SPierre Ossman mmc_release_host(host); 14856abaa0c9SPierre Ossman } 14866abaa0c9SPierre Ossman } 14876abaa0c9SPierre Ossman 148803d071fcSUlf Hansson static int _mmc_suspend(struct mmc_host *host, bool is_suspend) 14896abaa0c9SPierre Ossman { 1490c3805467SBalaji T K int err = 0; 149103d071fcSUlf Hansson unsigned int notify_type = is_suspend ? EXT_CSD_POWER_OFF_SHORT : 149203d071fcSUlf Hansson EXT_CSD_POWER_OFF_LONG; 1493c3805467SBalaji T K 14946abaa0c9SPierre Ossman BUG_ON(!host); 14956abaa0c9SPierre Ossman BUG_ON(!host->card); 14966abaa0c9SPierre Ossman 14976abaa0c9SPierre Ossman mmc_claim_host(host); 1498881d926dSMaya Erez 14999ec775f7SUlf Hansson if (mmc_card_suspended(host->card)) 15009ec775f7SUlf Hansson goto out; 15019ec775f7SUlf Hansson 150239b9431bSUlf Hansson if (mmc_card_doing_bkops(host->card)) { 150339b9431bSUlf Hansson err = mmc_stop_bkops(host->card); 150439b9431bSUlf Hansson if (err) 150539b9431bSUlf Hansson goto out; 150639b9431bSUlf Hansson } 150739b9431bSUlf Hansson 150810e5d965SUlf Hansson err = mmc_flush_cache(host->card); 1509881d926dSMaya Erez if (err) 1510881d926dSMaya Erez goto out; 1511881d926dSMaya Erez 151243235679SUlf Hansson if (mmc_can_poweroff_notify(host->card) && 151353275c21SUlf Hansson ((host->caps2 & MMC_CAP2_FULL_PWR_CYCLE) || !is_suspend)) 151403d071fcSUlf Hansson err = mmc_poweroff_notify(host->card, notify_type); 151507a68216SUlf Hansson else if (mmc_can_sleep(host->card)) 151607a68216SUlf Hansson err = mmc_sleep(host); 1517e6c08586SUlf Hansson else if (!mmc_host_is_spi(host)) 151885e727edSJaehoon Chung err = mmc_deselect_cards(host); 151995cdfb72SNicolas Pitre 15209ec775f7SUlf Hansson if (!err) { 152174590263SUlf Hansson mmc_power_off(host); 15229ec775f7SUlf Hansson mmc_card_set_suspended(host->card); 15239ec775f7SUlf Hansson } 1524881d926dSMaya Erez out: 1525881d926dSMaya Erez mmc_release_host(host); 1526c3805467SBalaji T K return err; 15276abaa0c9SPierre Ossman } 15286abaa0c9SPierre Ossman 15296abaa0c9SPierre Ossman /* 15300cb403a2SUlf Hansson * Suspend callback 153103d071fcSUlf Hansson */ 153203d071fcSUlf Hansson static int mmc_suspend(struct mmc_host *host) 153303d071fcSUlf Hansson { 15340cb403a2SUlf Hansson int err; 15350cb403a2SUlf Hansson 15360cb403a2SUlf Hansson err = _mmc_suspend(host, true); 15370cb403a2SUlf Hansson if (!err) { 15380cb403a2SUlf Hansson pm_runtime_disable(&host->card->dev); 15390cb403a2SUlf Hansson pm_runtime_set_suspended(&host->card->dev); 15400cb403a2SUlf Hansson } 15410cb403a2SUlf Hansson 15420cb403a2SUlf Hansson return err; 154303d071fcSUlf Hansson } 154403d071fcSUlf Hansson 154503d071fcSUlf Hansson /* 15466abaa0c9SPierre Ossman * This function tries to determine if the same card is still present 15476abaa0c9SPierre Ossman * and, if so, restore all state to it. 15486abaa0c9SPierre Ossman */ 15490cb403a2SUlf Hansson static int _mmc_resume(struct mmc_host *host) 15506abaa0c9SPierre Ossman { 15519ec775f7SUlf Hansson int err = 0; 15526abaa0c9SPierre Ossman 15536abaa0c9SPierre Ossman BUG_ON(!host); 15546abaa0c9SPierre Ossman BUG_ON(!host->card); 15556abaa0c9SPierre Ossman 15566abaa0c9SPierre Ossman mmc_claim_host(host); 15579ec775f7SUlf Hansson 15589ec775f7SUlf Hansson if (!mmc_card_suspended(host->card)) 15599ec775f7SUlf Hansson goto out; 15609ec775f7SUlf Hansson 156169041150SUlf Hansson mmc_power_up(host, host->card->ocr); 156269041150SUlf Hansson err = mmc_init_card(host, host->card->ocr, host->card); 15639ec775f7SUlf Hansson mmc_card_clr_suspended(host->card); 15642986d0bfSPierre Ossman 15659ec775f7SUlf Hansson out: 15669ec775f7SUlf Hansson mmc_release_host(host); 156795cdfb72SNicolas Pitre return err; 15686abaa0c9SPierre Ossman } 15696abaa0c9SPierre Ossman 15709ec775f7SUlf Hansson /* 15719ec775f7SUlf Hansson * Shutdown callback 15729ec775f7SUlf Hansson */ 15739ec775f7SUlf Hansson static int mmc_shutdown(struct mmc_host *host) 15749ec775f7SUlf Hansson { 15759ec775f7SUlf Hansson int err = 0; 15769ec775f7SUlf Hansson 15779ec775f7SUlf Hansson /* 15789ec775f7SUlf Hansson * In a specific case for poweroff notify, we need to resume the card 15799ec775f7SUlf Hansson * before we can shutdown it properly. 15809ec775f7SUlf Hansson */ 15819ec775f7SUlf Hansson if (mmc_can_poweroff_notify(host->card) && 15829ec775f7SUlf Hansson !(host->caps2 & MMC_CAP2_FULL_PWR_CYCLE)) 15830cb403a2SUlf Hansson err = _mmc_resume(host); 15849ec775f7SUlf Hansson 15859ec775f7SUlf Hansson if (!err) 15869ec775f7SUlf Hansson err = _mmc_suspend(host, false); 15879ec775f7SUlf Hansson 15889ec775f7SUlf Hansson return err; 15899ec775f7SUlf Hansson } 1590c4d770d7SUlf Hansson 1591c4d770d7SUlf Hansson /* 15920cb403a2SUlf Hansson * Callback for resume. 15930cb403a2SUlf Hansson */ 15940cb403a2SUlf Hansson static int mmc_resume(struct mmc_host *host) 15950cb403a2SUlf Hansson { 15964d223782SUlf Hansson int err = 0; 15970cb403a2SUlf Hansson 15984d223782SUlf Hansson if (!(host->caps & MMC_CAP_RUNTIME_RESUME)) { 15990cb403a2SUlf Hansson err = _mmc_resume(host); 16000cb403a2SUlf Hansson pm_runtime_set_active(&host->card->dev); 16010cb403a2SUlf Hansson pm_runtime_mark_last_busy(&host->card->dev); 16024d223782SUlf Hansson } 16030cb403a2SUlf Hansson pm_runtime_enable(&host->card->dev); 16040cb403a2SUlf Hansson 16050cb403a2SUlf Hansson return err; 16060cb403a2SUlf Hansson } 16070cb403a2SUlf Hansson 16080cb403a2SUlf Hansson /* 1609c4d770d7SUlf Hansson * Callback for runtime_suspend. 1610c4d770d7SUlf Hansson */ 1611c4d770d7SUlf Hansson static int mmc_runtime_suspend(struct mmc_host *host) 1612c4d770d7SUlf Hansson { 1613c4d770d7SUlf Hansson int err; 1614c4d770d7SUlf Hansson 1615c4d770d7SUlf Hansson if (!(host->caps & MMC_CAP_AGGRESSIVE_PM)) 1616c4d770d7SUlf Hansson return 0; 1617c4d770d7SUlf Hansson 16180cb403a2SUlf Hansson err = _mmc_suspend(host, true); 16190cc81a8cSUlf Hansson if (err) 1620c4d770d7SUlf Hansson pr_err("%s: error %d doing aggessive suspend\n", 1621c4d770d7SUlf Hansson mmc_hostname(host), err); 1622c4d770d7SUlf Hansson 1623c4d770d7SUlf Hansson return err; 1624c4d770d7SUlf Hansson } 1625c4d770d7SUlf Hansson 1626c4d770d7SUlf Hansson /* 1627c4d770d7SUlf Hansson * Callback for runtime_resume. 1628c4d770d7SUlf Hansson */ 1629c4d770d7SUlf Hansson static int mmc_runtime_resume(struct mmc_host *host) 1630c4d770d7SUlf Hansson { 1631c4d770d7SUlf Hansson int err; 1632c4d770d7SUlf Hansson 16334d223782SUlf Hansson if (!(host->caps & (MMC_CAP_AGGRESSIVE_PM | MMC_CAP_RUNTIME_RESUME))) 1634c4d770d7SUlf Hansson return 0; 1635c4d770d7SUlf Hansson 16360cb403a2SUlf Hansson err = _mmc_resume(host); 1637c4d770d7SUlf Hansson if (err) 1638c4d770d7SUlf Hansson pr_err("%s: error %d doing aggessive resume\n", 1639c4d770d7SUlf Hansson mmc_hostname(host), err); 1640c4d770d7SUlf Hansson 1641c4d770d7SUlf Hansson return 0; 1642c4d770d7SUlf Hansson } 1643c4d770d7SUlf Hansson 164412ae637fSOhad Ben-Cohen static int mmc_power_restore(struct mmc_host *host) 1645eae1aeeeSAdrian Hunter { 164612ae637fSOhad Ben-Cohen int ret; 164712ae637fSOhad Ben-Cohen 1648eae1aeeeSAdrian Hunter mmc_claim_host(host); 164969041150SUlf Hansson ret = mmc_init_card(host, host->card->ocr, host->card); 1650eae1aeeeSAdrian Hunter mmc_release_host(host); 165112ae637fSOhad Ben-Cohen 165212ae637fSOhad Ben-Cohen return ret; 1653eae1aeeeSAdrian Hunter } 1654eae1aeeeSAdrian Hunter 16559feae246SAdrian Hunter static const struct mmc_bus_ops mmc_ops = { 16569feae246SAdrian Hunter .remove = mmc_remove, 16579feae246SAdrian Hunter .detect = mmc_detect, 16589feae246SAdrian Hunter .suspend = mmc_suspend, 16599feae246SAdrian Hunter .resume = mmc_resume, 1660c4d770d7SUlf Hansson .runtime_suspend = mmc_runtime_suspend, 1661c4d770d7SUlf Hansson .runtime_resume = mmc_runtime_resume, 1662eae1aeeeSAdrian Hunter .power_restore = mmc_power_restore, 1663d3049504SAdrian Hunter .alive = mmc_alive, 1664486fdbbcSUlf Hansson .shutdown = mmc_shutdown, 16659feae246SAdrian Hunter }; 16669feae246SAdrian Hunter 16676abaa0c9SPierre Ossman /* 16686abaa0c9SPierre Ossman * Starting point for MMC card init. 16696abaa0c9SPierre Ossman */ 1670807e8e40SAndy Ross int mmc_attach_mmc(struct mmc_host *host) 16716abaa0c9SPierre Ossman { 16726abaa0c9SPierre Ossman int err; 167369041150SUlf Hansson u32 ocr, rocr; 16746abaa0c9SPierre Ossman 16756abaa0c9SPierre Ossman BUG_ON(!host); 1676d84075c8SPierre Ossman WARN_ON(!host->claimed); 16776abaa0c9SPierre Ossman 167844669034SStefan Nilsson XK /* Set correct bus mode for MMC before attempting attach */ 167944669034SStefan Nilsson XK if (!mmc_host_is_spi(host)) 168044669034SStefan Nilsson XK mmc_set_bus_mode(host, MMC_BUSMODE_OPENDRAIN); 168144669034SStefan Nilsson XK 1682807e8e40SAndy Ross err = mmc_send_op_cond(host, 0, &ocr); 1683807e8e40SAndy Ross if (err) 1684807e8e40SAndy Ross return err; 1685807e8e40SAndy Ross 16862501c917SUlf Hansson mmc_attach_bus(host, &mmc_ops); 16878f230f45STakashi Iwai if (host->ocr_avail_mmc) 16888f230f45STakashi Iwai host->ocr_avail = host->ocr_avail_mmc; 16896abaa0c9SPierre Ossman 16906abaa0c9SPierre Ossman /* 1691af517150SDavid Brownell * We need to get OCR a different way for SPI. 1692af517150SDavid Brownell */ 1693af517150SDavid Brownell if (mmc_host_is_spi(host)) { 1694af517150SDavid Brownell err = mmc_spi_read_ocr(host, 1, &ocr); 1695af517150SDavid Brownell if (err) 1696af517150SDavid Brownell goto err; 1697af517150SDavid Brownell } 1698af517150SDavid Brownell 169969041150SUlf Hansson rocr = mmc_select_voltage(host, ocr); 17006abaa0c9SPierre Ossman 17016abaa0c9SPierre Ossman /* 17026abaa0c9SPierre Ossman * Can we support the voltage of the card? 17036abaa0c9SPierre Ossman */ 170469041150SUlf Hansson if (!rocr) { 1705109b5bedSPierre Ossman err = -EINVAL; 17066abaa0c9SPierre Ossman goto err; 1707109b5bedSPierre Ossman } 17086abaa0c9SPierre Ossman 17096abaa0c9SPierre Ossman /* 17106abaa0c9SPierre Ossman * Detect and init the card. 17116abaa0c9SPierre Ossman */ 171269041150SUlf Hansson err = mmc_init_card(host, rocr, NULL); 171317b0429dSPierre Ossman if (err) 17146abaa0c9SPierre Ossman goto err; 17156abaa0c9SPierre Ossman 17166abaa0c9SPierre Ossman mmc_release_host(host); 17174101c16aSPierre Ossman err = mmc_add_card(host->card); 1718807e8e40SAndy Ross mmc_claim_host(host); 17197ea239d9SPierre Ossman if (err) 17202986d0bfSPierre Ossman goto remove_card; 17217ea239d9SPierre Ossman 17227ea239d9SPierre Ossman return 0; 17237ea239d9SPierre Ossman 17242986d0bfSPierre Ossman remove_card: 1725807e8e40SAndy Ross mmc_release_host(host); 17266abaa0c9SPierre Ossman mmc_remove_card(host->card); 17272986d0bfSPierre Ossman mmc_claim_host(host); 1728807e8e40SAndy Ross host->card = NULL; 17297ea239d9SPierre Ossman err: 17307ea239d9SPierre Ossman mmc_detach_bus(host); 17317ea239d9SPierre Ossman 1732a3c76eb9SGirish K S pr_err("%s: error %d whilst initialising MMC card\n", 1733109b5bedSPierre Ossman mmc_hostname(host), err); 1734109b5bedSPierre Ossman 1735adf66a0dSPierre Ossman return err; 17367ea239d9SPierre Ossman } 1737