diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 818a70b4007d..052cd335490d 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -563,6 +563,19 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
 		card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM];
 		card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION];
 
+		/*
+		 * Some eMMC vendors violate eMMC 5.0 spec and set
+		 * REL_WR_SEC_C register to 0x10 to indicate the
+		 * ability of RPMB throughput improvement thus lead
+		 * to failure when TZ module write data to RPMB
+		 * partition. So check bit[4] of EXT_CSD[166] and
+		 * if it is not set then change value of REL_WR_SEC_C
+		 * to 0x1 directly ignoring value of EXT_CSD[222].
+		 */
+		if (!(card->ext_csd.rel_param &
+					EXT_CSD_WR_REL_PARAM_EN_RPMB_REL_WR))
+			card->ext_csd.rel_sectors = 0x1;
+
 		/*
 		 * RPMB regions are defined in multiples of 128K.
 		 */