diff --git a/board/ti/dra7xx/README b/board/ti/dra7xx/README
index 2fdaeac..533da01 100644
--- a/board/ti/dra7xx/README
+++ b/board/ti/dra7xx/README
@@ -23,3 +23,4 @@ U-Boot # tftp ${loadaddr} dra7xx/u-boot.img
 U-Boot # mmc write ${loadaddr} 300 400
 U-Boot # mmc bootbus 1 2 0 2
 U-Boot # mmc partconf 1 1 1 0
+U-Boot # mmc rst-function 1 1
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index bd1edc8..c1916c9 100644
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -330,6 +330,40 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			printf("EMMC boot partition Size change Failed.\n");
 			return 1;
 		}
+	} else if (strcmp(argv[1], "rst-function") == 0) {
+		/*
+		 * Set the RST_n_ENABLE bit of RST_n_FUNCTION
+		 * The only valid values are 0x0, 0x1 and 0x2 and writing
+		 * a value of 0x1 or 0x2 sets the value permanently.
+		 */
+		int dev;
+		struct mmc *mmc;
+		u8 enable;
+
+		if (argc == 4) {
+			dev = simple_strtoul(argv[2], NULL, 10);
+			enable = simple_strtoul(argv[3], NULL, 10);
+		} else {
+			return CMD_RET_USAGE;
+		}
+
+		if (enable > 2 || enable < 0) {
+			puts("Invalid RST_n_ENABLE value\n");
+			return CMD_RET_USAGE;
+		}
+
+		mmc = find_mmc_device(dev);
+		if (!mmc) {
+			printf("no mmc device at slot %x\n", dev);
+			return 1;
+		}
+
+		if (IS_SD(mmc)) {
+			puts("RST_n_FUNCTION only exists on eMMC\n");
+			return 1;
+		}
+
+		return mmc_set_rst_n_function(mmc, enable);
 #endif /* CONFIG_SUPPORT_EMMC_BOOT */
 	}
 
@@ -436,6 +470,9 @@ U_BOOT_CMD(
 	" - Change sizes of boot and RPMB partitions of specified device\n"
 	"mmc partconf dev boot_ack boot_partition partition_access\n"
 	" - Change the bits of the PARTITION_CONFIG field of the specified device\n"
+	"mmc rst-function dev value\n"
+	" - Change the RST_n_FUNCTION field of the specified device\n"
+	"   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
 #endif
 	"mmc setdsr - set DSR register value\n"
 	);
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index eccdbc4..16051e5 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1513,4 +1513,16 @@ int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
 		return err;
 	return 0;
 }
+
+/*
+ * Modify EXT_CSD[162] which is RST_n_FUNCTION based on the given value
+ * for enable.  Note that this is a write-once field for non-zero values.
+ *
+ * Returns 0 on success.
+ */
+int mmc_set_rst_n_function(struct mmc *mmc, u8 enable)
+{
+	return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_RST_N_FUNCTION,
+			  enable);
+}
 #endif
diff --git a/include/mmc.h b/include/mmc.h
index 8a82974..c0a1d9e 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -150,6 +150,7 @@
 #define EXT_CSD_GP_SIZE_MULT		143	/* R/W */
 #define EXT_CSD_PARTITIONS_ATTRIBUTE	156	/* R/W */
 #define EXT_CSD_PARTITIONING_SUPPORT	160	/* RO */
+#define EXT_CSD_RST_N_FUNCTION		162	/* R/W */
 #define EXT_CSD_RPMB_MULT		168	/* RO */
 #define EXT_CSD_ERASE_GROUP_DEF		175	/* R/W */
 #define EXT_CSD_BOOT_BUS_WIDTH		177
@@ -332,6 +333,8 @@ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
 int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
 /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */
 int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode);
+/* Function to modify the RST_n_FUNCTION field of EXT_CSD */
+int mmc_set_rst_n_function(struct mmc *mmc, u8 enable);
 
 /**
  * Start device initialization and return immediately; it does not block on