diff options
Diffstat (limited to 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index f2d185cf8a8b..39fc5b2b96c5 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1029,6 +1029,10 @@ static int mmc_select_hs(struct mmc_card *card) err = mmc_switch_status(card); } + if (err) + pr_warn("%s: switch to high-speed failed, err:%d\n", + mmc_hostname(card->host), err); + return err; } @@ -1259,17 +1263,26 @@ static int mmc_select_hs400es(struct mmc_card *card) goto out_err; } + if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V) + err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120); + + if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_8V) + err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180); + + /* If fails try again during next card power cycle */ + if (err) + goto out_err; + err = mmc_select_bus_width(card); if (err < 0) goto out_err; /* Switch card to HS mode */ err = mmc_select_hs(card); - if (err) { - pr_err("%s: switch to high-speed failed, err:%d\n", - mmc_hostname(host), err); + if (err) goto out_err; - } + + mmc_set_clock(host, card->ext_csd.hs_max_dtr); err = mmc_switch_status(card); if (err) |
