diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index dabec55..914f942 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -958,6 +958,15 @@ static int mmc_blk_issue_flush(struct mmc_queue *mq, struct request *req)
 	struct mmc_card *card = md->queue.card;
 	int ret = 0;
 
+	/*
+	 * The flush command is a synchronization point from file system.
+	 * The contexts are flushed here to ensure that the data written
+	 * in the open contexts are saved reliably in non-volatile media
+	 */
+	ret = mmc_flush_contexts(card);
+	if (ret)
+		ret = -EIO;
+
 	ret = mmc_flush_cache(card);
 	if (ret)
 		ret = -EIO;
@@ -1207,11 +1216,16 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
 	 */
 	if ((md->flags & MMC_BLK_CMD23) && mmc_op_multi(brq->cmd.opcode) &&
 	    (do_rel_wr || !(card->quirks & MMC_QUIRK_BLK_NO_CMD23) ||
-	     do_data_tag)) {
+	     do_data_tag || (card->ext_csd.max_context_id > 0))) {
+		int context_id = (req->context &&
+			card->ext_csd.max_context_id) ?
+			(req->context % card->ext_csd.max_context_id + 1) :
+			0;
 		brq->sbc.opcode = MMC_SET_BLOCK_COUNT;
 		brq->sbc.arg = brq->data.blocks |
 			(do_rel_wr ? (1 << 31) : 0) |
-			(do_data_tag ? (1 << 29) : 0);
+			(do_data_tag ? (1 << 29) : 0) |
+			(!do_data_tag ? (context_id << 25) : 0);
 		brq->sbc.flags = MMC_RSP_R1 | MMC_CMD_AC;
 		brq->mrq.sbc = &brq->sbc;
 	}
@@ -1440,6 +1454,23 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 			mmc_blk_issue_rw_rq(mq, NULL);
 		ret = mmc_blk_issue_flush(mq, req);
 	} else {
+		if (req && (req->cmd_flags & REQ_SYNC) &&
+			req->context && card->ext_csd.max_context_id) {
+			int context_cfg_id = (req->context) ?
+				req->context % card->ext_csd.max_context_id : 0;
+			/*
+			 * The SYNC command is a synchronization point from
+			 * file system. The relevent context is sync'ed here
+			 * to ensure that the data written in the open context
+			 * are saved reliably in non-volatile media
+			 */
+			if (card->host->areq)
+				mmc_blk_issue_rw_rq(mq, NULL);
+			mmc_sync_context(card, context_cfg_id);
+			/* this write will go without context to ensure
+			   that it is reliably written */
+			req->context = 0;
+		}
 		ret = mmc_blk_issue_rw_rq(mq, req);
 	}
 
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index ba821fe..728145a 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2262,6 +2262,78 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable)
 }
 EXPORT_SYMBOL(mmc_cache_ctrl);
 
+/*
+ * Synchronize a context by first closing the context and then
+ * opening it
+ */
+int mmc_sync_context(struct mmc_card *card, int context_id)
+{
+	int err = 0;
+
+	err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+		EXT_CSD_CONTEXT_CONF + context_id,
+		0x0, card->ext_csd.generic_cmd6_time);
+
+	if (err)
+		return err;
+
+	err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+		EXT_CSD_CONTEXT_CONF + context_id,
+		0x3, card->ext_csd.generic_cmd6_time);
+
+	return err;
+}
+EXPORT_SYMBOL(mmc_sync_context);
+
+int mmc_flush_contexts(struct mmc_card *card)
+{
+	int i;
+	for (i = 1; i <= card->ext_csd.max_context_id; i++) {
+		int err = mmc_sync_context(card, i);
+		if (err)
+			return err;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(mmc_flush_contexts);
+
+/*
+ * Initialize all the MMC contexts in read-write and non-LU mode
+ */
+int mmc_init_context(struct mmc_card *card)
+{
+	int i, err = 0;
+
+	for (i = 0; i < card->ext_csd.max_context_id; i++) {
+		err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+					EXT_CSD_CONTEXT_CONF + i,
+					0x3, card->ext_csd.generic_cmd6_time);
+		if (err) {
+			pr_warning("%s: Activating of context %d failed [%x]\n",
+				   mmc_hostname(card->host), i, err);
+			break;
+		}
+	}
+
+	if (!err)
+		return 0;
+
+	/*
+	 * Close the opened contexts
+	 */
+	for (i = i-1; i >= 0; i--) {
+		int err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+					EXT_CSD_CONTEXT_CONF + i,
+					0x0, card->ext_csd.generic_cmd6_time);
+		if (err)
+			pr_warning("%s: Closing of context %d failed [%x]\n",
+				   mmc_hostname(card->host), i, err);
+	}
+
+	return err;
+}
+EXPORT_SYMBOL(mmc_init_context);
+
 #ifdef CONFIG_PM
 
 /**
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 54df5ad..84bec43 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -533,6 +533,20 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
 		} else {
 			card->ext_csd.data_tag_unit_size = 0;
 		}
+
+		/* LU size in 512 byt sectors */
+		card->ext_csd.lu_size =
+			(ext_csd[EXT_CSD_LARGE_UNIT_SIZE_M1] + 1) * 0x800;
+
+		card->ext_csd.max_context_id =
+			ext_csd[EXT_CSD_CONTEXT_CAPABILITIES] & 0x0f;
+
+		if (card->ext_csd.max_context_id > MAX_MMC_CONTEXT_ID) {
+			pr_warning("%s: card has invalid number of contexts [%d]\n",
+				mmc_hostname(card->host),
+				card->ext_csd.max_context_id);
+			card->ext_csd.max_context_id = 0;
+		}
 	}
 
 out:
@@ -1267,6 +1281,20 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 		}
 	}
 
+	if (host->caps2 & MMC_CAP2_CONTEXT) {
+		if (card->ext_csd.max_context_id > 0) {
+			err = mmc_init_context(card);
+			if (err && err != -EBADMSG)
+				goto free_card;
+			if (err) {
+				pr_warning("%s: failed to activate context (%x)\n",
+						mmc_hostname(card->host), err);
+				card->ext_csd.max_context_id = 0;
+				err = 0;
+			}
+		}
+	}
+
 	if (!oldcard)
 		host->card = card;
 
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 629b823..adf2c84 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -74,6 +74,8 @@ struct mmc_ext_csd {
 	unsigned int		hpi_cmd;		/* cmd used as HPI */
 	unsigned int            data_sector_size;       /* 512 bytes or 4KB */
 	unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
+	unsigned int		lu_size;
+	unsigned int		max_context_id;
 	unsigned int		boot_ro_lock;		/* ro lock support */
 	bool			boot_ro_lockable;
 	u8			raw_partition_support;	/* 160 */
@@ -184,6 +186,8 @@ struct sdio_func_tuple;
 #define MMC_NUM_PHY_PARTITION	6
 #define MAX_MMC_PART_NAME_LEN	20
 
+#define MAX_MMC_CONTEXT_ID		15
+
 /*
  * MMC Physical partitions
  */
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 1b431c7..a4e6bc9 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -179,6 +179,10 @@ extern int mmc_try_claim_host(struct mmc_host *host);
 
 extern int mmc_flush_cache(struct mmc_card *);
 
+extern int mmc_sync_context(struct mmc_card *card, int context_id);
+extern int mmc_flush_contexts(struct mmc_card *card);
+extern int mmc_init_context(struct mmc_card *card);
+
 extern int mmc_detect_card_removed(struct mmc_host *host);
 
 /**
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 0707d22..688348f 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -233,6 +233,7 @@ struct mmc_host {
 #define MMC_CAP2_NO_SLEEP_CMD	(1 << 4)	/* Don't allow sleep command */
 #define MMC_CAP2_HS200_1_8V_SDR	(1 << 5)        /* can support */
 #define MMC_CAP2_HS200_1_2V_SDR	(1 << 6)        /* can support */
+#define MMC_CAP2_CONTEXT	(1<<7)	/* Context ID supported */
 #define MMC_CAP2_HS200		(MMC_CAP2_HS200_1_8V_SDR | \
 				 MMC_CAP2_HS200_1_2V_SDR)
 #define MMC_CAP2_BROKEN_VOLTAGE	(1 << 7)	/* Use the broken voltage */
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index b822a2c..8f8d958 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -274,6 +274,7 @@ struct _mmc_csd {
 #define EXT_CSD_FLUSH_CACHE		32      /* W */
 #define EXT_CSD_CACHE_CTRL		33      /* R/W */
 #define EXT_CSD_POWER_OFF_NOTIFICATION	34	/* R/W */
+#define EXT_CSD_CONTEXT_CONF		37	/* R/W */
 #define EXT_CSD_DATA_SECTOR_SIZE	61	/* R */
 #define EXT_CSD_GP_SIZE_MULT		143	/* R/W */
 #define EXT_CSD_PARTITION_ATTRIBUTE	156	/* R/W */
@@ -316,6 +317,8 @@ struct _mmc_csd {
 #define EXT_CSD_POWER_OFF_LONG_TIME	247	/* RO */
 #define EXT_CSD_GENERIC_CMD6_TIME	248	/* RO */
 #define EXT_CSD_CACHE_SIZE		249	/* RO, 4 bytes */
+#define EXT_CSD_LARGE_UNIT_SIZE_M1	495	/* RO */
+#define EXT_CSD_CONTEXT_CAPABILITIES	496	/* RO */
 #define EXT_CSD_TAG_UNIT_SIZE		498	/* RO */
 #define EXT_CSD_DATA_TAG_SUPPORT	499	/* RO */
 #define EXT_CSD_HPI_FEATURES		503	/* RO */