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Diffstat (limited to 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index a48066344fa..2b9ed1401dc 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -816,6 +816,9 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, if (!mmc_host_is_spi(host)) mmc_set_bus_mode(host, MMC_BUSMODE_OPENDRAIN); + /* Initialization should be done at 3.3 V I/O voltage. */ + mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0); + /* * Since we're changing the OCR value, we seem to * need to tell some cards to go back to the idle |