diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
index 67257bc..dd163c3 100644
--- a/drivers/mci/mci-core.c
+++ b/drivers/mci/mci-core.c
@@ -1025,6 +1025,9 @@
 
 	mci_set_clock(mci, mci->tran_speed);
 
+	if (!(host->host_caps & (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)))
+		return 0;
+
 	/*
 	 * Unlike SD, MMC cards dont have a configuration register to notify
 	 * supported bus width. So bus test command should be run to identify