4 files changed, 17 insertions, 5 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 690255c7d4dc..132378b89d76 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2068,6 +2068,9 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
 	 */
 	mmc_hw_reset_for_init(host);
 
+	/* Initialization should be done at 3.3 V I/O voltage. */
+	mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0);
+
 	/*
 	 * sdio_reset sends CMD52 to reset card.  Since we do not know
 	 * if the card is being re-initialized, just send it.  CMD52
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index a48066344fa8..2b9ed1401dc4 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
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 5017f9354ce2..c272c6868ecf 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -911,6 +911,9 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 	BUG_ON(!host);
 	WARN_ON(!host->claimed);
 
+	/* The initialization should be done at 3.3 V I/O voltage. */
+	mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0);
+
 	err = mmc_sd_get_cid(host, ocr, cid, &rocr);
 	if (err)
 		return err;
@@ -1156,11 +1159,6 @@ int mmc_attach_sd(struct mmc_host *host)
 	BUG_ON(!host);
 	WARN_ON(!host->claimed);
 
-	/* Make sure we are at 3.3V signalling voltage */
-	err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, false);
-	if (err)
-		return err;
-
 	/* Disable preset value enable if already set since last time */
 	if (host->ops->enable_preset_value) {
 		mmc_host_clk_hold(host);
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 12cde6ee17f5..2c7c83f832d2 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -585,6 +585,9 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
 	 * Inform the card of the voltage
 	 */
 	if (!powered_resume) {
+		/* The initialization should be done at 3.3 V I/O voltage. */
+		mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0);
+
 		err = mmc_send_io_op_cond(host, host->ocr, &ocr);
 		if (err)
 			goto err;
@@ -996,6 +999,11 @@ static int mmc_sdio_power_restore(struct mmc_host *host)
 	 * With these steps taken, mmc_select_voltage() is also required to
 	 * restore the correct voltage setting of the card.
 	 */
+
+	/* The initialization should be done at 3.3 V I/O voltage. */
+	if (!mmc_card_keep_power(host))
+		mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0);
+
 	sdio_reset(host);
 	mmc_go_idle(host);
 	mmc_send_if_cond(host, host->ocr_avail);