diff options
Diffstat (limited to 'drivers/mmc/core/sd.c')
| -rw-r--r-- | drivers/mmc/core/sd.c | 380 |
1 files changed, 215 insertions, 165 deletions
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 4646b7a03db6..948948ca9b4a 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -11,7 +11,11 @@ #include <linux/sizes.h> #include <linux/slab.h> #include <linux/stat.h> +#include <linux/string.h> #include <linux/pm_runtime.h> +#include <linux/random.h> +#include <linux/scatterlist.h> +#include <linux/sysfs.h> #include <linux/mmc/host.h> #include <linux/mmc/card.h> @@ -23,6 +27,7 @@ #include "host.h" #include "bus.h" #include "mmc_ops.h" +#include "quirks.h" #include "sd.h" #include "sd_ops.h" @@ -52,21 +57,7 @@ static const unsigned int sd_au_size[] = { SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512, }; -#define UNSTUFF_BITS(resp,start,size) \ - ({ \ - const int __size = size; \ - const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \ - const int __off = 3 - ((start) / 32); \ - const int __shft = (start) & 31; \ - u32 __res; \ - \ - __res = resp[__off] >> __shft; \ - if (__size + __shft > 32) \ - __res |= resp[__off-1] << ((32 - __shft) % 32); \ - __res & __mask; \ - }) - -#define SD_POWEROFF_NOTIFY_TIMEOUT_MS 2000 +#define SD_POWEROFF_NOTIFY_TIMEOUT_MS 1000 #define SD_WRITE_EXTR_SINGLE_TIMEOUT_MS 1000 struct sd_busy_data { @@ -82,75 +73,85 @@ void mmc_decode_cid(struct mmc_card *card) u32 *resp = card->raw_cid; /* + * Add the raw card ID (cid) data to the entropy pool. It doesn't + * matter that not all of it is unique, it's just bonus entropy. + */ + add_device_randomness(&card->raw_cid, sizeof(card->raw_cid)); + + /* * SD doesn't currently have a version field so we will * have to assume we can parse this. */ - card->cid.manfid = UNSTUFF_BITS(resp, 120, 8); - card->cid.oemid = UNSTUFF_BITS(resp, 104, 16); - card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8); - card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8); - card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8); - card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8); - card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8); - card->cid.hwrev = UNSTUFF_BITS(resp, 60, 4); - card->cid.fwrev = UNSTUFF_BITS(resp, 56, 4); - card->cid.serial = UNSTUFF_BITS(resp, 24, 32); - card->cid.year = UNSTUFF_BITS(resp, 12, 8); - card->cid.month = UNSTUFF_BITS(resp, 8, 4); + card->cid.manfid = unstuff_bits(resp, 120, 8); + card->cid.oemid = unstuff_bits(resp, 104, 16); + card->cid.prod_name[0] = unstuff_bits(resp, 96, 8); + card->cid.prod_name[1] = unstuff_bits(resp, 88, 8); + card->cid.prod_name[2] = unstuff_bits(resp, 80, 8); + card->cid.prod_name[3] = unstuff_bits(resp, 72, 8); + card->cid.prod_name[4] = unstuff_bits(resp, 64, 8); + card->cid.hwrev = unstuff_bits(resp, 60, 4); + card->cid.fwrev = unstuff_bits(resp, 56, 4); + card->cid.serial = unstuff_bits(resp, 24, 32); + card->cid.year = unstuff_bits(resp, 12, 8); + card->cid.month = unstuff_bits(resp, 8, 4); card->cid.year += 2000; /* SD cards year offset */ + + /* some product names may include trailing whitespace */ + strim(card->cid.prod_name); } /* * Given a 128-bit response, decode to our card CSD structure. */ -static int mmc_decode_csd(struct mmc_card *card) +static int mmc_decode_csd(struct mmc_card *card, bool is_sduc) { struct mmc_csd *csd = &card->csd; unsigned int e, m, csd_struct; u32 *resp = card->raw_csd; - csd_struct = UNSTUFF_BITS(resp, 126, 2); + csd_struct = unstuff_bits(resp, 126, 2); switch (csd_struct) { case 0: - m = UNSTUFF_BITS(resp, 115, 4); - e = UNSTUFF_BITS(resp, 112, 3); + m = unstuff_bits(resp, 115, 4); + e = unstuff_bits(resp, 112, 3); csd->taac_ns = (taac_exp[e] * taac_mant[m] + 9) / 10; - csd->taac_clks = UNSTUFF_BITS(resp, 104, 8) * 100; + csd->taac_clks = unstuff_bits(resp, 104, 8) * 100; - m = UNSTUFF_BITS(resp, 99, 4); - e = UNSTUFF_BITS(resp, 96, 3); + m = unstuff_bits(resp, 99, 4); + e = unstuff_bits(resp, 96, 3); csd->max_dtr = tran_exp[e] * tran_mant[m]; - csd->cmdclass = UNSTUFF_BITS(resp, 84, 12); + csd->cmdclass = unstuff_bits(resp, 84, 12); - e = UNSTUFF_BITS(resp, 47, 3); - m = UNSTUFF_BITS(resp, 62, 12); + e = unstuff_bits(resp, 47, 3); + m = unstuff_bits(resp, 62, 12); csd->capacity = (1 + m) << (e + 2); - csd->read_blkbits = UNSTUFF_BITS(resp, 80, 4); - csd->read_partial = UNSTUFF_BITS(resp, 79, 1); - csd->write_misalign = UNSTUFF_BITS(resp, 78, 1); - csd->read_misalign = UNSTUFF_BITS(resp, 77, 1); - csd->dsr_imp = UNSTUFF_BITS(resp, 76, 1); - csd->r2w_factor = UNSTUFF_BITS(resp, 26, 3); - csd->write_blkbits = UNSTUFF_BITS(resp, 22, 4); - csd->write_partial = UNSTUFF_BITS(resp, 21, 1); + csd->read_blkbits = unstuff_bits(resp, 80, 4); + csd->read_partial = unstuff_bits(resp, 79, 1); + csd->write_misalign = unstuff_bits(resp, 78, 1); + csd->read_misalign = unstuff_bits(resp, 77, 1); + csd->dsr_imp = unstuff_bits(resp, 76, 1); + csd->r2w_factor = unstuff_bits(resp, 26, 3); + csd->write_blkbits = unstuff_bits(resp, 22, 4); + csd->write_partial = unstuff_bits(resp, 21, 1); - if (UNSTUFF_BITS(resp, 46, 1)) { + if (unstuff_bits(resp, 46, 1)) { csd->erase_size = 1; } else if (csd->write_blkbits >= 9) { - csd->erase_size = UNSTUFF_BITS(resp, 39, 7) + 1; + csd->erase_size = unstuff_bits(resp, 39, 7) + 1; csd->erase_size <<= csd->write_blkbits - 9; } - if (UNSTUFF_BITS(resp, 13, 1)) + if (unstuff_bits(resp, 13, 1)) mmc_card_set_readonly(card); break; case 1: + case 2: /* - * This is a block-addressed SDHC or SDXC card. Most - * interesting fields are unused and have fixed + * This is a block-addressed SDHC, SDXC or SDUC card. + * Most interesting fields are unused and have fixed * values. To avoid getting tripped by buggy cards, * we assume those fixed values ourselves. */ @@ -159,18 +160,23 @@ static int mmc_decode_csd(struct mmc_card *card) csd->taac_ns = 0; /* Unused */ csd->taac_clks = 0; /* Unused */ - m = UNSTUFF_BITS(resp, 99, 4); - e = UNSTUFF_BITS(resp, 96, 3); + m = unstuff_bits(resp, 99, 4); + e = unstuff_bits(resp, 96, 3); csd->max_dtr = tran_exp[e] * tran_mant[m]; - csd->cmdclass = UNSTUFF_BITS(resp, 84, 12); - csd->c_size = UNSTUFF_BITS(resp, 48, 22); + csd->cmdclass = unstuff_bits(resp, 84, 12); + + if (csd_struct == 1) + m = unstuff_bits(resp, 48, 22); + else + m = unstuff_bits(resp, 48, 28); + csd->c_size = m; - /* SDXC cards have a minimum C_SIZE of 0x00FFFF */ - if (csd->c_size >= 0xFFFF) + if (csd->c_size >= 0x400000 && is_sduc) + mmc_card_set_ult_capacity(card); + else if (csd->c_size >= 0xFFFF) mmc_card_set_ext_capacity(card); - m = UNSTUFF_BITS(resp, 48, 22); - csd->capacity = (1 + m) << 10; + csd->capacity = (1 + (typeof(sector_t))m) << 10; csd->read_blkbits = 9; csd->read_partial = 0; @@ -181,7 +187,7 @@ static int mmc_decode_csd(struct mmc_card *card) csd->write_partial = 0; csd->erase_size = 1; - if (UNSTUFF_BITS(resp, 13, 1)) + if (unstuff_bits(resp, 13, 1)) mmc_card_set_readonly(card); break; default: @@ -198,7 +204,7 @@ static int mmc_decode_csd(struct mmc_card *card) /* * Given a 64-bit response, decode to our card SCR structure. */ -static int mmc_decode_scr(struct mmc_card *card) +int mmc_decode_scr(struct mmc_card *card) { struct sd_scr *scr = &card->scr; unsigned int scr_struct; @@ -207,33 +213,33 @@ static int mmc_decode_scr(struct mmc_card *card) resp[3] = card->raw_scr[1]; resp[2] = card->raw_scr[0]; - scr_struct = UNSTUFF_BITS(resp, 60, 4); + scr_struct = unstuff_bits(resp, 60, 4); if (scr_struct != 0) { pr_err("%s: unrecognised SCR structure version %d\n", mmc_hostname(card->host), scr_struct); return -EINVAL; } - scr->sda_vsn = UNSTUFF_BITS(resp, 56, 4); - scr->bus_widths = UNSTUFF_BITS(resp, 48, 4); + scr->sda_vsn = unstuff_bits(resp, 56, 4); + scr->bus_widths = unstuff_bits(resp, 48, 4); if (scr->sda_vsn == SCR_SPEC_VER_2) /* Check if Physical Layer Spec v3.0 is supported */ - scr->sda_spec3 = UNSTUFF_BITS(resp, 47, 1); + scr->sda_spec3 = unstuff_bits(resp, 47, 1); if (scr->sda_spec3) { - scr->sda_spec4 = UNSTUFF_BITS(resp, 42, 1); - scr->sda_specx = UNSTUFF_BITS(resp, 38, 4); + scr->sda_spec4 = unstuff_bits(resp, 42, 1); + scr->sda_specx = unstuff_bits(resp, 38, 4); } - if (UNSTUFF_BITS(resp, 55, 1)) + if (unstuff_bits(resp, 55, 1)) card->erased_byte = 0xFF; else card->erased_byte = 0x0; if (scr->sda_spec4) - scr->cmds = UNSTUFF_BITS(resp, 32, 4); + scr->cmds = unstuff_bits(resp, 32, 4); else if (scr->sda_spec3) - scr->cmds = UNSTUFF_BITS(resp, 32, 2); + scr->cmds = unstuff_bits(resp, 32, 2); /* SD Spec says: any SD Card shall set at least bits 0 and 2 */ if (!(scr->bus_widths & SD_SCR_BUS_WIDTH_1) || @@ -279,17 +285,17 @@ static int mmc_read_ssr(struct mmc_card *card) kfree(raw_ssr); /* - * UNSTUFF_BITS only works with four u32s so we have to offset the + * unstuff_bits only works with four u32s so we have to offset the * bitfield positions accordingly. */ - au = UNSTUFF_BITS(card->raw_ssr, 428 - 384, 4); + au = unstuff_bits(card->raw_ssr, 428 - 384, 4); if (au) { if (au <= 9 || card->scr.sda_spec3) { card->ssr.au = sd_au_size[au]; - es = UNSTUFF_BITS(card->raw_ssr, 408 - 384, 16); - et = UNSTUFF_BITS(card->raw_ssr, 402 - 384, 6); + es = unstuff_bits(card->raw_ssr, 408 - 384, 16); + et = unstuff_bits(card->raw_ssr, 402 - 384, 6); if (es && et) { - eo = UNSTUFF_BITS(card->raw_ssr, 400 - 384, 2); + eo = unstuff_bits(card->raw_ssr, 400 - 384, 2); card->ssr.erase_timeout = (et * 1000) / es; card->ssr.erase_offset = eo * 1000; } @@ -303,7 +309,7 @@ static int mmc_read_ssr(struct mmc_card *card) * starting SD5.1 discard is supported if DISCARD_SUPPORT (b313) is set */ resp[3] = card->raw_ssr[6]; - discard_support = UNSTUFF_BITS(resp, 313 - 288, 1); + discard_support = unstuff_bits(resp, 313 - 288, 1); card->erase_arg = (card->scr.sda_specx && discard_support) ? SD_DISCARD_ARG : SD_ERASE_ARG; @@ -336,7 +342,7 @@ static int mmc_read_switch(struct mmc_card *card) * The argument does not matter, as the support bits do not * change with the arguments. */ - err = mmc_sd_switch(card, 0, 0, 0, status); + err = mmc_sd_switch(card, SD_SWITCH_CHECK, 0, 0, status); if (err) { /* * If the host or the card can't do the switch, @@ -353,7 +359,7 @@ static int mmc_read_switch(struct mmc_card *card) } if (status[13] & SD_MODE_HIGH_SPEED) - card->sw_caps.hs_max_dtr = HIGH_SPEED_MAX_DTR; + card->sw_caps.hs_max_dtr = card->host->max_sd_hs_hz ?: HIGH_SPEED_MAX_DTR; if (card->scr.sda_spec3) { card->sw_caps.sd3_bus_mode = status[13]; @@ -392,7 +398,8 @@ int mmc_sd_switch_hs(struct mmc_card *card) if (!status) return -ENOMEM; - err = mmc_sd_switch(card, 1, 0, HIGH_SPEED_BUS_SPEED, status); + err = mmc_sd_switch(card, SD_SWITCH_SET, 0, + HIGH_SPEED_BUS_SPEED, status); if (err) goto out; @@ -424,7 +431,8 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status) card_drv_type, &drv_type); if (drive_strength) { - err = mmc_sd_switch(card, 1, 2, drive_strength, status); + err = mmc_sd_switch(card, SD_SWITCH_SET, 2, + drive_strength, status); if (err) return err; if ((status[15] & 0xF) != drive_strength) { @@ -447,7 +455,7 @@ static void sd_update_bus_speed_mode(struct mmc_card *card) * If the host doesn't support any of the UHS-I modes, fallback on * default speed. */ - if (!mmc_host_uhs(card->host)) { + if (!mmc_host_can_uhs(card->host)) { card->sd_bus_speed = 0; return; } @@ -504,7 +512,7 @@ static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status) return 0; } - err = mmc_sd_switch(card, 1, 0, card->sd_bus_speed, status); + err = mmc_sd_switch(card, SD_SWITCH_SET, 0, card->sd_bus_speed, status); if (err) return err; @@ -546,7 +554,7 @@ static u32 sd_get_host_max_current(struct mmc_host *host) static int sd_set_current_limit(struct mmc_card *card, u8 *status) { - int current_limit = SD_SET_CURRENT_NO_CHANGE; + int current_limit = SD_SET_CURRENT_LIMIT_200; int err; u32 max_current; @@ -590,12 +598,10 @@ static int sd_set_current_limit(struct mmc_card *card, u8 *status) else if (max_current >= 400 && card->sw_caps.sd3_curr_limit & SD_MAX_CURRENT_400) current_limit = SD_SET_CURRENT_LIMIT_400; - else if (max_current >= 200 && - card->sw_caps.sd3_curr_limit & SD_MAX_CURRENT_200) - current_limit = SD_SET_CURRENT_LIMIT_200; - if (current_limit != SD_SET_CURRENT_NO_CHANGE) { - err = mmc_sd_switch(card, 1, 3, current_limit, status); + if (current_limit != SD_SET_CURRENT_LIMIT_200) { + err = mmc_sd_switch(card, SD_SWITCH_SET, 3, + current_limit, status); if (err) return err; @@ -609,6 +615,29 @@ static int sd_set_current_limit(struct mmc_card *card, u8 *status) } /* + * Determine if the card should tune or not. + */ +static bool mmc_sd_use_tuning(struct mmc_card *card) +{ + /* + * SPI mode doesn't define CMD19 and tuning is only valid for SDR50 and + * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104. + */ + if (mmc_host_is_spi(card->host)) + return false; + + switch (card->host->ios.timing) { + case MMC_TIMING_UHS_SDR50: + case MMC_TIMING_UHS_SDR104: + return true; + case MMC_TIMING_UHS_DDR50: + return !mmc_card_no_uhs_ddr50_tuning(card); + } + + return false; +} + +/* * UHS-I specific initialization procedure */ static int mmc_sd_init_uhs_card(struct mmc_card *card) @@ -651,14 +680,7 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card) if (err) goto out; - /* - * SPI mode doesn't define CMD19 and tuning is only valid for SDR50 and - * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104. - */ - if (!mmc_host_is_spi(card->host) && - (card->host->ios.timing == MMC_TIMING_UHS_SDR50 || - card->host->ios.timing == MMC_TIMING_UHS_DDR50 || - card->host->ios.timing == MMC_TIMING_UHS_SDR104)) { + if (mmc_sd_use_tuning(card)) { err = mmc_execute_tuning(card); /* @@ -707,21 +729,19 @@ MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr); MMC_DEV_ATTR(rca, "0x%04x\n", card->rca); -static ssize_t mmc_dsr_show(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t mmc_dsr_show(struct device *dev, struct device_attribute *attr, + char *buf) { - struct mmc_card *card = mmc_dev_to_card(dev); - struct mmc_host *host = card->host; - - if (card->csd.dsr_imp && host->dsr_req) - return sprintf(buf, "0x%x\n", host->dsr); - else - /* return default DSR value */ - return sprintf(buf, "0x%x\n", 0x404); + struct mmc_card *card = mmc_dev_to_card(dev); + struct mmc_host *host = card->host; + + if (card->csd.dsr_imp && host->dsr_req) + return sysfs_emit(buf, "0x%x\n", host->dsr); + /* return default DSR value */ + return sysfs_emit(buf, "0x%x\n", 0x404); } -static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL); +static DEVICE_ATTR(dsr, 0444, mmc_dsr_show, NULL); MMC_DEV_ATTR(vendor, "0x%04x\n", card->cis.vendor); MMC_DEV_ATTR(device, "0x%04x\n", card->cis.device); @@ -734,9 +754,9 @@ static ssize_t info##num##_show(struct device *dev, struct device_attribute *att \ if (num > card->num_info) \ return -ENODATA; \ - if (!card->info[num-1][0]) \ + if (!card->info[num - 1][0]) \ return 0; \ - return sprintf(buf, "%s\n", card->info[num-1]); \ + return sysfs_emit(buf, "%s\n", card->info[num - 1]); \ } \ static DEVICE_ATTR_RO(info##num) @@ -786,7 +806,7 @@ static umode_t sd_std_is_visible(struct kobject *kobj, struct attribute *attr, attr == &dev_attr_info2.attr || attr == &dev_attr_info3.attr || attr == &dev_attr_info4.attr - ) && card->type != MMC_TYPE_SD_COMBO) + ) &&!mmc_card_sd_combo(card)) return 0; return attr->mode; @@ -798,7 +818,7 @@ static const struct attribute_group sd_std_group = { }; __ATTRIBUTE_GROUPS(sd_std); -struct device_type sd_type = { +const struct device_type sd_type = { .groups = sd_std_groups, }; @@ -833,15 +853,18 @@ try_again: * block-addressed SDHC cards. */ err = mmc_send_if_cond(host, ocr); - if (!err) + if (!err) { ocr |= SD_OCR_CCS; + /* Set HO2T as well - SDUC card won't respond otherwise */ + ocr |= SD_OCR_2T; + } /* * If the host supports one of UHS-I modes, request the card * to switch to 1.8V signaling level. If the card has failed * repeatedly to switch however, skip this. */ - if (retries && mmc_host_uhs(host)) + if (retries && mmc_host_can_uhs(host)) ocr |= SD_OCR_S18R; /* @@ -863,7 +886,8 @@ try_again: * the CCS bit is set as well. We deliberately deviate from the spec in * regards to this, which allows UHS-I to be supported for SDSC cards. */ - if (!mmc_host_is_spi(host) && rocr && (*rocr & 0x01000000)) { + if (!mmc_host_is_spi(host) && (ocr & SD_OCR_S18R) && + rocr && (*rocr & SD_ROCR_S18A)) { err = mmc_set_uhs_voltage(host, pocr); if (err == -EAGAIN) { retries--; @@ -878,7 +902,7 @@ try_again: return err; } -int mmc_sd_get_csd(struct mmc_card *card) +int mmc_sd_get_csd(struct mmc_card *card, bool is_sduc) { int err; @@ -889,14 +913,14 @@ int mmc_sd_get_csd(struct mmc_card *card) if (err) return err; - err = mmc_decode_csd(card); + err = mmc_decode_csd(card, is_sduc); if (err) return err; return 0; } -static int mmc_sd_get_ro(struct mmc_host *host) +int mmc_sd_get_ro(struct mmc_host *host) { int ro; @@ -942,16 +966,17 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card, /* Erase init depends on CSD and SSR */ mmc_init_erase(card); - - /* - * Fetch switch information from card. - */ - err = mmc_read_switch(card); - if (err) - return err; } /* + * Fetch switch information from card. Note, sd3_bus_mode can change if + * voltage switch outcome changes, so do this always. + */ + err = mmc_read_switch(card); + if (err) + return err; + + /* * For SPI, enable CRC as appropriate. * This CRC enable is located AFTER the reading of the * card registers because some SDHC cards are not able @@ -1108,7 +1133,7 @@ static int sd_parse_ext_reg_power(struct mmc_card *card, u8 fno, u8 page, card->ext_power.rev = reg_buf[0] & 0xf; /* Power Off Notification support at bit 4. */ - if (reg_buf[1] & BIT(4)) + if ((reg_buf[1] & BIT(4)) && !mmc_card_broken_sd_poweroff_notify(card)) card->ext_power.feature_support |= SD_EXT_POWER_OFF_NOTIFY; /* Power Sustenance support at bit 5. */ @@ -1161,7 +1186,7 @@ static int sd_parse_ext_reg_perf(struct mmc_card *card, u8 fno, u8 page, card->ext_perf.feature_support |= SD_EXT_PERF_HOST_MAINT; /* Cache support at bit 0. */ - if (reg_buf[4] & BIT(0)) + if ((reg_buf[4] & BIT(0)) && !mmc_card_broken_sd_cache(card)) card->ext_perf.feature_support |= SD_EXT_PERF_CACHE; /* Command queue support indicated via queue depth bits (0 to 4). */ @@ -1250,7 +1275,7 @@ static int sd_read_ext_regs(struct mmc_card *card) */ err = sd_read_ext_reg(card, 0, 0, 0, 512, gen_info_buf); if (err) { - pr_warn("%s: error %d reading general info of SD ext reg\n", + pr_err("%s: error %d reading general info of SD ext reg\n", mmc_hostname(card->host), err); goto out; } @@ -1264,7 +1289,12 @@ static int sd_read_ext_regs(struct mmc_card *card) /* Number of extensions to be find. */ num_ext = gen_info_buf[4]; - /* We support revision 0, but limit it to 512 bytes for simplicity. */ + /* + * We only support revision 0 and limit it to 512 bytes for simplicity. + * No matter what, let's return zero to allow us to continue using the + * card, even if we can't support the features from the SD function + * extensions registers. + */ if (rev != 0 || len > 512) { pr_warn("%s: non-supported SD ext reg layout\n", mmc_hostname(card->host)); @@ -1279,7 +1309,7 @@ static int sd_read_ext_regs(struct mmc_card *card) for (i = 0; i < num_ext; i++) { err = sd_parse_ext_reg(card, gen_info_buf, &next_ext_addr); if (err) { - pr_warn("%s: error %d parsing SD ext reg\n", + pr_err("%s: error %d parsing SD ext reg\n", mmc_hostname(card->host), err); goto out; } @@ -1438,7 +1468,10 @@ retry: } if (!oldcard) { - err = mmc_sd_get_csd(card); + u32 sduc_arg = SD_OCR_CCS | SD_OCR_2T; + bool is_sduc = (rocr & sduc_arg) == sduc_arg; + + err = mmc_sd_get_csd(card, is_sduc); if (err) goto free_card; @@ -1461,6 +1494,9 @@ retry: goto free_card; } + /* Apply quirks prior to card setup */ + mmc_fixup_device(card, mmc_sd_fixups); + err = mmc_sd_setup_card(host, card, oldcard != NULL); if (err) goto free_card; @@ -1470,33 +1506,22 @@ retry: * signaling. Detect that situation and try to initialize a UHS-I (1.8V) * transfer mode. */ - if (!v18_fixup_failed && !mmc_host_is_spi(host) && mmc_host_uhs(host) && + if (!v18_fixup_failed && !mmc_host_is_spi(host) && mmc_host_can_uhs(host) && mmc_sd_card_using_v18(card) && host->ios.signal_voltage != MMC_SIGNAL_VOLTAGE_180) { - /* - * Re-read switch information in case it has changed since - * oldcard was initialized. - */ - if (oldcard) { - err = mmc_read_switch(card); - if (err) - goto free_card; - } - if (mmc_sd_card_using_v18(card)) { - if (mmc_host_set_uhs_voltage(host) || - mmc_sd_init_uhs_card(card)) { - v18_fixup_failed = true; - mmc_power_cycle(host, ocr); - if (!oldcard) - mmc_remove_card(card); - goto retry; - } - goto done; + if (mmc_host_set_uhs_voltage(host) || + mmc_sd_init_uhs_card(card)) { + v18_fixup_failed = true; + mmc_power_cycle(host, ocr); + if (!oldcard) + mmc_remove_card(card); + goto retry; } + goto cont; } /* Initialization sequence for UHS-I cards */ - if (rocr & SD_ROCR_S18A && mmc_host_uhs(host)) { + if (rocr & SD_ROCR_S18A && mmc_host_can_uhs(host)) { err = mmc_sd_init_uhs_card(card); if (err) goto free_card; @@ -1515,6 +1540,13 @@ retry: */ mmc_set_clock(host, mmc_sd_get_max_clock(card)); + if (host->ios.timing == MMC_TIMING_SD_HS && + host->ops->prepare_sd_hs_tuning) { + err = host->ops->prepare_sd_hs_tuning(host, card); + if (err) + goto free_card; + } + /* * Switch to wider bus (if supported). */ @@ -1526,8 +1558,15 @@ retry: mmc_set_bus_width(host, MMC_BUS_WIDTH_4); } - } + if (host->ios.timing == MMC_TIMING_SD_HS && + host->ops->execute_sd_hs_tuning) { + err = host->ops->execute_sd_hs_tuning(host, card); + if (err) + goto free_card; + } + } +cont: if (!oldcard) { /* Read/parse the extension registers. */ err = sd_read_ext_regs(card); @@ -1542,7 +1581,7 @@ retry: goto free_card; } - if (host->cqe_ops && !host->cqe_enabled) { + if (!mmc_card_ult_capacity(card) && host->cqe_ops && !host->cqe_enabled) { err = host->cqe_ops->cqe_enable(host, card); if (!err) { host->cqe_enabled = true; @@ -1559,7 +1598,7 @@ retry: err = -EINVAL; goto free_card; } -done: + host->card = card; return 0; @@ -1571,15 +1610,6 @@ free_card: } /* - * Host is being removed. Free up the current card. - */ -static void mmc_sd_remove(struct mmc_host *host) -{ - mmc_remove_card(host->card); - host->card = NULL; -} - -/* * Card detection - card is alive. */ static int mmc_sd_alive(struct mmc_host *host) @@ -1604,7 +1634,8 @@ static void mmc_sd_detect(struct mmc_host *host) mmc_put_card(host->card, NULL); if (err) { - mmc_sd_remove(host); + mmc_remove_card(host->card); + host->card = NULL; mmc_claim_host(host); mmc_detach_bus(host); @@ -1663,9 +1694,15 @@ static int sd_poweroff_notify(struct mmc_card *card) goto out; } + /* Find out when the command is completed. */ + err = mmc_poll_for_busy(card, SD_WRITE_EXTR_SINGLE_TIMEOUT_MS, false, + MMC_BUSY_EXTR_SINGLE); + if (err) + goto out; + cb_data.card = card; cb_data.reg_buf = reg_buf; - err = __mmc_poll_for_busy(card, SD_POWEROFF_NOTIFY_TIMEOUT_MS, + err = __mmc_poll_for_busy(card->host, 0, SD_POWEROFF_NOTIFY_TIMEOUT_MS, &sd_busy_poweroff_notify_cb, &cb_data); out: @@ -1699,6 +1736,19 @@ out: } /* + * Host is being removed. Free up the current card and do a graceful power-off. + */ +static void mmc_sd_remove(struct mmc_host *host) +{ + get_device(&host->card->dev); + mmc_remove_card(host->card); + + _mmc_sd_suspend(host); + + put_device(&host->card->dev); + host->card = NULL; +} +/* * Callback for suspend */ static int mmc_sd_suspend(struct mmc_host *host) |