Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts:
	drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c

Small minor conflict in bnx2x, wherein one commit changed how
statistics were stored in software, and another commit
fixed endianness bugs wrt. reading the values provided by
the chip in memory.

Signed-off-by: David S. Miller <davem@davemloft.net>

17 files changed, 241 insertions, 131 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 0cad48a..c6a383d 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1694,6 +1694,7 @@ static int mmc_add_disk(struct mmc_blk_data *md)
 
 		md->power_ro_lock.show = power_ro_lock_show;
 		md->power_ro_lock.store = power_ro_lock_store;
+		sysfs_attr_init(&md->power_ro_lock.attr);
 		md->power_ro_lock.attr.mode = mode;
 		md->power_ro_lock.attr.name =
 					"ro_lock_until_next_power_on";
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index f545a3e..690255c 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -290,8 +290,11 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
 static void mmc_pre_req(struct mmc_host *host, struct mmc_request *mrq,
 		 bool is_first_req)
 {
-	if (host->ops->pre_req)
+	if (host->ops->pre_req) {
+		mmc_host_clk_hold(host);
 		host->ops->pre_req(host, mrq, is_first_req);
+		mmc_host_clk_release(host);
+	}
 }
 
 /**
@@ -306,8 +309,11 @@ static void mmc_pre_req(struct mmc_host *host, struct mmc_request *mrq,
 static void mmc_post_req(struct mmc_host *host, struct mmc_request *mrq,
 			 int err)
 {
-	if (host->ops->post_req)
+	if (host->ops->post_req) {
+		mmc_host_clk_hold(host);
 		host->ops->post_req(host, mrq, err);
+		mmc_host_clk_release(host);
+	}
 }
 
 /**
@@ -620,7 +626,9 @@ int mmc_host_enable(struct mmc_host *host)
 		int err;
 
 		host->en_dis_recurs = 1;
+		mmc_host_clk_hold(host);
 		err = host->ops->enable(host);
+		mmc_host_clk_release(host);
 		host->en_dis_recurs = 0;
 
 		if (err) {
@@ -640,7 +648,9 @@ static int mmc_host_do_disable(struct mmc_host *host, int lazy)
 		int err;
 
 		host->en_dis_recurs = 1;
+		mmc_host_clk_hold(host);
 		err = host->ops->disable(host, lazy);
+		mmc_host_clk_release(host);
 		host->en_dis_recurs = 0;
 
 		if (err < 0) {
@@ -1121,6 +1131,10 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc,
 		 * might not allow this operation
 		 */
 		voltage = regulator_get_voltage(supply);
+
+		if (mmc->caps2 & MMC_CAP2_BROKEN_VOLTAGE)
+			min_uV = max_uV = voltage;
+
 		if (voltage < 0)
 			result = voltage;
 		else if (voltage < min_uV || voltage > max_uV)
@@ -1203,8 +1217,11 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, bool cmd11
 
 	host->ios.signal_voltage = signal_voltage;
 
-	if (host->ops->start_signal_voltage_switch)
+	if (host->ops->start_signal_voltage_switch) {
+		mmc_host_clk_hold(host);
 		err = host->ops->start_signal_voltage_switch(host, &host->ios);
+		mmc_host_clk_release(host);
+	}
 
 	return err;
 }
@@ -1239,6 +1256,7 @@ static void mmc_poweroff_notify(struct mmc_host *host)
 	int err = 0;
 
 	card = host->card;
+	mmc_claim_host(host);
 
 	/*
 	 * Send power notify command only if card
@@ -1269,6 +1287,7 @@ static void mmc_poweroff_notify(struct mmc_host *host)
 		/* Set the card state to no notification after the poweroff */
 		card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION;
 	}
+	mmc_release_host(host);
 }
 
 /*
@@ -1327,12 +1346,28 @@ static void mmc_power_up(struct mmc_host *host)
 
 void mmc_power_off(struct mmc_host *host)
 {
+	int err = 0;
 	mmc_host_clk_hold(host);
 
 	host->ios.clock = 0;
 	host->ios.vdd = 0;
 
-	mmc_poweroff_notify(host);
+	/*
+	 * For eMMC 4.5 device send AWAKE command before
+	 * POWER_OFF_NOTIFY command, because in sleep state
+	 * eMMC 4.5 devices respond to only RESET and AWAKE cmd
+	 */
+	if (host->card && mmc_card_is_sleep(host->card) &&
+	    host->bus_ops->resume) {
+		err = host->bus_ops->resume(host);
+
+		if (!err)
+			mmc_poweroff_notify(host);
+		else
+			pr_warning("%s: error %d during resume "
+				   "(continue with poweroff sequence)\n",
+				   mmc_hostname(host), err);
+	}
 
 	/*
 	 * Reset ocr mask to be the highest possible voltage supported for
@@ -2386,12 +2421,6 @@ int mmc_suspend_host(struct mmc_host *host)
 		 */
 		if (mmc_try_claim_host(host)) {
 			if (host->bus_ops->suspend) {
-				/*
-				 * For eMMC 4.5 device send notify command
-				 * before sleep, because in sleep state eMMC 4.5
-				 * devices respond to only RESET and AWAKE cmd
-				 */
-				mmc_poweroff_notify(host);
 				err = host->bus_ops->suspend(host);
 			}
 			mmc_do_release_host(host);
diff --git a/drivers/mmc/core/host.h b/drivers/mmc/core/host.h
index fb8a5cd..08a7852 100644
--- a/drivers/mmc/core/host.h
+++ b/drivers/mmc/core/host.h
@@ -14,27 +14,6 @@
 
 int mmc_register_host_class(void);
 void mmc_unregister_host_class(void);
-
-#ifdef CONFIG_MMC_CLKGATE
-void mmc_host_clk_hold(struct mmc_host *host);
-void mmc_host_clk_release(struct mmc_host *host);
-unsigned int mmc_host_clk_rate(struct mmc_host *host);
-
-#else
-static inline void mmc_host_clk_hold(struct mmc_host *host)
-{
-}
-
-static inline void mmc_host_clk_release(struct mmc_host *host)
-{
-}
-
-static inline unsigned int mmc_host_clk_rate(struct mmc_host *host)
-{
-	return host->ios.clock;
-}
-#endif
-
 void mmc_host_deeper_disable(struct work_struct *work);
 
 #endif
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 59b9ba5..a480663 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -376,7 +376,7 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
 	}
 
 	card->ext_csd.raw_hc_erase_gap_size =
-		ext_csd[EXT_CSD_PARTITION_ATTRIBUTE];
+		ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
 	card->ext_csd.raw_sec_trim_mult =
 		ext_csd[EXT_CSD_SEC_TRIM_MULT];
 	card->ext_csd.raw_sec_erase_mult =
@@ -551,7 +551,7 @@ static int mmc_compare_ext_csds(struct mmc_card *card, unsigned bus_width)
 		goto out;
 
 	/* only compare read only fields */
-	err = (!(card->ext_csd.raw_partition_support ==
+	err = !((card->ext_csd.raw_partition_support ==
 			bw_ext_csd[EXT_CSD_PARTITION_SUPPORT]) &&
 		(card->ext_csd.raw_erased_mem_count ==
 			bw_ext_csd[EXT_CSD_ERASED_MEM_CONT]) &&
@@ -1006,7 +1006,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 			err = mmc_select_hs200(card);
 		else if	(host->caps & MMC_CAP_MMC_HIGHSPEED)
 			err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-					 EXT_CSD_HS_TIMING, 1, 0);
+					 EXT_CSD_HS_TIMING, 1,
+					 card->ext_csd.generic_cmd6_time);
 
 		if (err && err != -EBADMSG)
 			goto free_card;
@@ -1116,7 +1117,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 	 * Activate wide bus and DDR (if supported).
 	 */
 	if (!mmc_card_hs200(card) &&
-	    (card->csd.mmca_vsn >= CSD_SPEC_VER_3) &&
+	    (card->csd.mmca_vsn >= CSD_SPEC_VER_4) &&
 	    (host->caps & (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA))) {
 		static unsigned ext_csd_bits[][2] = {
 			{ EXT_CSD_BUS_WIDTH_8, EXT_CSD_DDR_BUS_WIDTH_8 },
@@ -1315,11 +1316,13 @@ static int mmc_suspend(struct mmc_host *host)
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
-	if (mmc_card_can_sleep(host))
+	if (mmc_card_can_sleep(host)) {
 		err = mmc_card_sleep(host);
-	else if (!mmc_host_is_spi(host))
+		if (!err)
+			mmc_card_set_sleep(host->card);
+	} else if (!mmc_host_is_spi(host))
 		mmc_deselect_cards(host);
-	host->card->state &= ~MMC_STATE_HIGHSPEED;
+	host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
 	mmc_release_host(host);
 
 	return err;
@@ -1339,7 +1342,11 @@ static int mmc_resume(struct mmc_host *host)
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
-	err = mmc_init_card(host, host->ocr, host->card);
+	if (mmc_card_is_sleep(host->card)) {
+		err = mmc_card_awake(host);
+		mmc_card_clr_sleep(host->card);
+	} else
+		err = mmc_init_card(host, host->ocr, host->card);
 	mmc_release_host(host);
 
 	return err;
@@ -1349,7 +1356,8 @@ static int mmc_power_restore(struct mmc_host *host)
 {
 	int ret;
 
-	host->card->state &= ~MMC_STATE_HIGHSPEED;
+	host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
+	mmc_card_clr_sleep(host->card);
 	mmc_claim_host(host);
 	ret = mmc_init_card(host, host->ocr, host->card);
 	mmc_release_host(host);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index c63ad03..5017f93 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -451,9 +451,11 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status)
 	 * information and let the hardware specific code
 	 * return what is possible given the options
 	 */
+	mmc_host_clk_hold(card->host);
 	drive_strength = card->host->ops->select_drive_strength(
 		card->sw_caps.uhs_max_dtr,
 		host_drv_type, card_drv_type);
+	mmc_host_clk_release(card->host);
 
 	err = mmc_sd_switch(card, 1, 2, drive_strength, status);
 	if (err)
@@ -660,9 +662,12 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
 		goto out;
 
 	/* SPI mode doesn't define CMD19 */
-	if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning)
+	if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning) {
+		mmc_host_clk_hold(card->host);
 		err = card->host->ops->execute_tuning(card->host,
 						      MMC_SEND_TUNING_BLOCK);
+		mmc_host_clk_release(card->host);
+	}
 
 out:
 	kfree(status);
@@ -850,8 +855,11 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
 	if (!reinit) {
 		int ro = -1;
 
-		if (host->ops->get_ro)
+		if (host->ops->get_ro) {
+			mmc_host_clk_hold(card->host);
 			ro = host->ops->get_ro(host);
+			mmc_host_clk_release(card->host);
+		}
 
 		if (ro < 0) {
 			pr_warning("%s: host does not "
@@ -967,8 +975,11 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 		 * Since initialization is now complete, enable preset
 		 * value registers for UHS-I cards.
 		 */
-		if (host->ops->enable_preset_value)
+		if (host->ops->enable_preset_value) {
+			mmc_host_clk_hold(card->host);
 			host->ops->enable_preset_value(host, true);
+			mmc_host_clk_release(card->host);
+		}
 	} else {
 		/*
 		 * Attempt to change to high-speed (if supported)
@@ -1151,8 +1162,11 @@ int mmc_attach_sd(struct mmc_host *host)
 		return err;
 
 	/* Disable preset value enable if already set since last time */
-	if (host->ops->enable_preset_value)
+	if (host->ops->enable_preset_value) {
+		mmc_host_clk_hold(host);
 		host->ops->enable_preset_value(host, false);
+		mmc_host_clk_release(host);
+	}
 
 	err = mmc_send_app_op_cond(host, 0, &ocr);
 	if (err)
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index bd7bacc..12cde6e 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -98,10 +98,11 @@ fail:
 	return ret;
 }
 
-static int sdio_read_cccr(struct mmc_card *card)
+static int sdio_read_cccr(struct mmc_card *card, u32 ocr)
 {
 	int ret;
 	int cccr_vsn;
+	int uhs = ocr & R4_18V_PRESENT;
 	unsigned char data;
 	unsigned char speed;
 
@@ -149,7 +150,7 @@ static int sdio_read_cccr(struct mmc_card *card)
 		card->scr.sda_spec3 = 0;
 		card->sw_caps.sd3_bus_mode = 0;
 		card->sw_caps.sd3_drv_type = 0;
-		if (cccr_vsn >= SDIO_CCCR_REV_3_00) {
+		if (cccr_vsn >= SDIO_CCCR_REV_3_00 && uhs) {
 			card->scr.sda_spec3 = 1;
 			ret = mmc_io_rw_direct(card, 0, 0,
 				SDIO_CCCR_UHS, 0, &data);
@@ -712,7 +713,7 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
 	/*
 	 * Read the common registers.
 	 */
-	err = sdio_read_cccr(card);
+	err = sdio_read_cccr(card, ocr);
 	if (err)
 		goto remove;
 
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index 68f81b9..f573e7f 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -146,15 +146,21 @@ static int sdio_irq_thread(void *_host)
 		}
 
 		set_current_state(TASK_INTERRUPTIBLE);
-		if (host->caps & MMC_CAP_SDIO_IRQ)
+		if (host->caps & MMC_CAP_SDIO_IRQ) {
+			mmc_host_clk_hold(host);
 			host->ops->enable_sdio_irq(host, 1);
+			mmc_host_clk_release(host);
+		}
 		if (!kthread_should_stop())
 			schedule_timeout(period);
 		set_current_state(TASK_RUNNING);
 	} while (!kthread_should_stop());
 
-	if (host->caps & MMC_CAP_SDIO_IRQ)
+	if (host->caps & MMC_CAP_SDIO_IRQ) {
+		mmc_host_clk_hold(host);
 		host->ops->enable_sdio_irq(host, 0);
+		mmc_host_clk_release(host);
+	}
 
 	pr_debug("%s: IRQ thread exiting with code %d\n",
 		 mmc_hostname(host), ret);
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index fcfe1eb..6985cdb 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -969,11 +969,14 @@ static void atmci_start_request(struct atmel_mci *host,
 	host->data_status = 0;
 
 	if (host->need_reset) {
+		iflags = atmci_readl(host, ATMCI_IMR);
+		iflags &= (ATMCI_SDIOIRQA | ATMCI_SDIOIRQB);
 		atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
 		atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIEN);
 		atmci_writel(host, ATMCI_MR, host->mode_reg);
 		if (host->caps.has_cfg_reg)
 			atmci_writel(host, ATMCI_CFG, host->cfg_reg);
+		atmci_writel(host, ATMCI_IER, iflags);
 		host->need_reset = false;
 	}
 	atmci_writel(host, ATMCI_SDCR, slot->sdc_reg);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0e34279..8bec1c3 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -22,7 +22,6 @@
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/scatterlist.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
@@ -502,8 +501,14 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data)
 		host->dir_status = DW_MCI_SEND_STATUS;
 
 	if (dw_mci_submit_data_dma(host, data)) {
+		int flags = SG_MITER_ATOMIC;
+		if (host->data->flags & MMC_DATA_READ)
+			flags |= SG_MITER_TO_SG;
+		else
+			flags |= SG_MITER_FROM_SG;
+
+		sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);
 		host->sg = data->sg;
-		host->pio_offset = 0;
 		host->part_buf_start = 0;
 		host->part_buf_count = 0;
 
@@ -972,6 +977,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
 				 * generates a block interrupt, hence setting
 				 * the scatter-gather pointer to NULL.
 				 */
+				sg_miter_stop(&host->sg_miter);
 				host->sg = NULL;
 				ctrl = mci_readl(host, CTRL);
 				ctrl |= SDMMC_CTRL_FIFO_RESET;
@@ -1311,54 +1317,44 @@ static void dw_mci_pull_data(struct dw_mci *host, void *buf, int cnt)
 
 static void dw_mci_read_data_pio(struct dw_mci *host)
 {
-	struct scatterlist *sg = host->sg;
-	void *buf = sg_virt(sg);
-	unsigned int offset = host->pio_offset;
+	struct sg_mapping_iter *sg_miter = &host->sg_miter;
+	void *buf;
+	unsigned int offset;
 	struct mmc_data	*data = host->data;
 	int shift = host->data_shift;
 	u32 status;
 	unsigned int nbytes = 0, len;
+	unsigned int remain, fcnt;
 
 	do {
-		len = host->part_buf_count +
-			(SDMMC_GET_FCNT(mci_readl(host, STATUS)) << shift);
-		if (offset + len <= sg->length) {
+		if (!sg_miter_next(sg_miter))
+			goto done;
+
+		host->sg = sg_miter->__sg;
+		buf = sg_miter->addr;
+		remain = sg_miter->length;
+		offset = 0;
+
+		do {
+			fcnt = (SDMMC_GET_FCNT(mci_readl(host, STATUS))
+					<< shift) + host->part_buf_count;
+			len = min(remain, fcnt);
+			if (!len)
+				break;
 			dw_mci_pull_data(host, (void *)(buf + offset), len);
-
 			offset += len;
 			nbytes += len;
-
-			if (offset == sg->length) {
-				flush_dcache_page(sg_page(sg));
-				host->sg = sg = sg_next(sg);
-				if (!sg)
-					goto done;
-
-				offset = 0;
-				buf = sg_virt(sg);
-			}
-		} else {
-			unsigned int remaining = sg->length - offset;
-			dw_mci_pull_data(host, (void *)(buf + offset),
-					 remaining);
-			nbytes += remaining;
-
-			flush_dcache_page(sg_page(sg));
-			host->sg = sg = sg_next(sg);
-			if (!sg)
-				goto done;
-
-			offset = len - remaining;
-			buf = sg_virt(sg);
-			dw_mci_pull_data(host, buf, offset);
-			nbytes += offset;
-		}
+			remain -= len;
+		} while (remain);
+		sg_miter->consumed = offset;
 
 		status = mci_readl(host, MINTSTS);
 		mci_writel(host, RINTSTS, SDMMC_INT_RXDR);
 		if (status & DW_MCI_DATA_ERROR_FLAGS) {
 			host->data_status = status;
 			data->bytes_xfered += nbytes;
+			sg_miter_stop(sg_miter);
+			host->sg = NULL;
 			smp_wmb();
 
 			set_bit(EVENT_DATA_ERROR, &host->pending_events);
@@ -1367,65 +1363,66 @@ static void dw_mci_read_data_pio(struct dw_mci *host)
 			return;
 		}
 	} while (status & SDMMC_INT_RXDR); /*if the RXDR is ready read again*/
-	host->pio_offset = offset;
 	data->bytes_xfered += nbytes;
+
+	if (!remain) {
+		if (!sg_miter_next(sg_miter))
+			goto done;
+		sg_miter->consumed = 0;
+	}
+	sg_miter_stop(sg_miter);
 	return;
 
 done:
 	data->bytes_xfered += nbytes;
+	sg_miter_stop(sg_miter);
+	host->sg = NULL;
 	smp_wmb();
 	set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
 }
 
 static void dw_mci_write_data_pio(struct dw_mci *host)
 {
-	struct scatterlist *sg = host->sg;
-	void *buf = sg_virt(sg);
-	unsigned int offset = host->pio_offset;
+	struct sg_mapping_iter *sg_miter = &host->sg_miter;
+	void *buf;
+	unsigned int offset;
 	struct mmc_data	*data = host->data;
 	int shift = host->data_shift;
 	u32 status;
 	unsigned int nbytes = 0, len;
+	unsigned int fifo_depth = host->fifo_depth;
+	unsigned int remain, fcnt;
 
 	do {
-		len = ((host->fifo_depth -
-			SDMMC_GET_FCNT(mci_readl(host, STATUS))) << shift)
-			- host->part_buf_count;
-		if (offset + len <= sg->length) {
+		if (!sg_miter_next(sg_miter))
+			goto done;
+
+		host->sg = sg_miter->__sg;
+		buf = sg_miter->addr;
+		remain = sg_miter->length;
+		offset = 0;
+
+		do {
+			fcnt = ((fifo_depth -
+				 SDMMC_GET_FCNT(mci_readl(host, STATUS)))
+					<< shift) - host->part_buf_count;
+			len = min(remain, fcnt);
+			if (!len)
+				break;
 			host->push_data(host, (void *)(buf + offset), len);
-
 			offset += len;
 			nbytes += len;
-			if (offset == sg->length) {
-				host->sg = sg = sg_next(sg);
-				if (!sg)
-					goto done;
-
-				offset = 0;
-				buf = sg_virt(sg);
-			}
-		} else {
-			unsigned int remaining = sg->length - offset;
-
-			host->push_data(host, (void *)(buf + offset),
-					remaining);
-			nbytes += remaining;
-
-			host->sg = sg = sg_next(sg);
-			if (!sg)
-				goto done;
-
-			offset = len - remaining;
-			buf = sg_virt(sg);
-			host->push_data(host, (void *)buf, offset);
-			nbytes += offset;
-		}
+			remain -= len;
+		} while (remain);
+		sg_miter->consumed = offset;
 
 		status = mci_readl(host, MINTSTS);
 		mci_writel(host, RINTSTS, SDMMC_INT_TXDR);
 		if (status & DW_MCI_DATA_ERROR_FLAGS) {
 			host->data_status = status;
 			data->bytes_xfered += nbytes;
+			sg_miter_stop(sg_miter);
+			host->sg = NULL;
 
 			smp_wmb();
 
@@ -1435,12 +1432,20 @@ static void dw_mci_write_data_pio(struct dw_mci *host)
 			return;
 		}
 	} while (status & SDMMC_INT_TXDR); /* if TXDR write again */
-	host->pio_offset = offset;
 	data->bytes_xfered += nbytes;
+
+	if (!remain) {
+		if (!sg_miter_next(sg_miter))
+			goto done;
+		sg_miter->consumed = 0;
+	}
+	sg_miter_stop(sg_miter);
 	return;
 
 done:
 	data->bytes_xfered += nbytes;
+	sg_miter_stop(sg_miter);
+	host->sg = NULL;
 	smp_wmb();
 	set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
 }
@@ -1643,6 +1648,7 @@ static void dw_mci_work_routine_card(struct work_struct *work)
 				 * block interrupt, hence setting the
 				 * scatter-gather pointer to NULL.
 				 */
+				sg_miter_stop(&host->sg_miter);
 				host->sg = NULL;
 
 				ctrl = mci_readl(host, CTRL);
diff --git a/drivers/mmc/host/of_mmc_spi.c b/drivers/mmc/host/of_mmc_spi.c
index ab66f24..1534b58 100644
--- a/drivers/mmc/host/of_mmc_spi.c
+++ b/drivers/mmc/host/of_mmc_spi.c
@@ -113,8 +113,8 @@ struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi)
 		const int j = i * 2;
 		u32 mask;
 
-		mask = mmc_vddrange_to_ocrmask(voltage_ranges[j],
-					       voltage_ranges[j + 1]);
+		mask = mmc_vddrange_to_ocrmask(be32_to_cpu(voltage_ranges[j]),
+					       be32_to_cpu(voltage_ranges[j + 1]));
 		if (!mask) {
 			ret = -EINVAL;
 			dev_err(dev, "OF: voltage-range #%d is invalid\n", i);
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index ff4adc0..5d876ff 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -38,6 +38,23 @@ static u8 esdhc_readb(struct sdhci_host *host, int reg)
 	int base = reg & ~0x3;
 	int shift = (reg & 0x3) * 8;
 	u8 ret = (in_be32(host->ioaddr + base) >> shift) & 0xff;
+
+	/*
+	 * "DMA select" locates at offset 0x28 in SD specification, but on
+	 * P5020 or P3041, it locates at 0x29.
+	 */
+	if (reg == SDHCI_HOST_CONTROL) {
+		u32 dma_bits;
+
+		dma_bits = in_be32(host->ioaddr + reg);
+		/* DMA select is 22,23 bits in Protocol Control Register */
+		dma_bits = (dma_bits >> 5) & SDHCI_CTRL_DMA_MASK;
+
+		/* fixup the result */
+		ret &= ~SDHCI_CTRL_DMA_MASK;
+		ret |= dma_bits;
+	}
+
 	return ret;
 }
 
@@ -56,6 +73,21 @@ static void esdhc_writew(struct sdhci_host *host, u16 val, int reg)
 
 static void esdhc_writeb(struct sdhci_host *host, u8 val, int reg)
 {
+	/*
+	 * "DMA select" location is offset 0x28 in SD specification, but on
+	 * P5020 or P3041, it's located at 0x29.
+	 */
+	if (reg == SDHCI_HOST_CONTROL) {
+		u32 dma_bits;
+
+		/* DMA select is 22,23 bits in Protocol Control Register */
+		dma_bits = (val & SDHCI_CTRL_DMA_MASK) << 5;
+		clrsetbits_be32(host->ioaddr + reg , SDHCI_CTRL_DMA_MASK << 5,
+			dma_bits);
+		val &= ~SDHCI_CTRL_DMA_MASK;
+		val |= in_be32(host->ioaddr + reg) & SDHCI_CTRL_DMA_MASK;
+	}
+
 	/* Prevent SDHCI core from writing reserved bits (e.g. HISPD). */
 	if (reg == SDHCI_HOST_CONTROL)
 		val &= ~ESDHC_HOST_CONTROL_RES;
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 7165e6a..6ebdc40 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -250,7 +250,7 @@ static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
 
 static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
-	slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD;
+	slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE;
 	return 0;
 }
 
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 03970bc..c5c2a48 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -2,7 +2,7 @@
  * sdhci-pltfm.c Support for SDHCI platform devices
  * Copyright (c) 2009 Intel Corporation
  *
- * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ * Copyright (c) 2007, 2011 Freescale Semiconductor, Inc.
  * Copyright (c) 2009 MontaVista Software, Inc.
  *
  * Authors: Xiaobo Xie <X.Xie@freescale.com>
@@ -71,6 +71,14 @@ void sdhci_get_of_property(struct platform_device *pdev)
 		if (sdhci_of_wp_inverted(np))
 			host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
 
+		if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
+			host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
+
+		if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||
+		    of_device_is_compatible(np, "fsl,p1010-esdhc") ||
+		    of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
+			host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
+
 		clk = of_get_property(np, "clock-frequency", &size);
 		if (clk && size == sizeof(*clk) && *clk)
 			pltfm_host->clock = be32_to_cpup(clk);
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index f5d8b53..352d479 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1327,7 +1327,7 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto clean_up2;
 
-	mmc_add_host(mmc);
+	INIT_DELAYED_WORK(&host->timeout_work, mmcif_timeout_work);
 
 	sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
 
@@ -1338,22 +1338,24 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
 	}
 	ret = request_threaded_irq(irq[1], sh_mmcif_intr, sh_mmcif_irqt, 0, "sh_mmc:int", host);
 	if (ret) {
-		free_irq(irq[0], host);
 		dev_err(&pdev->dev, "request_irq error (sh_mmc:int)\n");
-		goto clean_up3;
+		goto clean_up4;
 	}
 
-	INIT_DELAYED_WORK(&host->timeout_work, mmcif_timeout_work);
-
-	mmc_detect_change(host->mmc, 0);
+	ret = mmc_add_host(mmc);
+	if (ret < 0)
+		goto clean_up5;
 
 	dev_info(&pdev->dev, "driver version %s\n", DRIVER_VERSION);
 	dev_dbg(&pdev->dev, "chip ver H'%04x\n",
 		sh_mmcif_readl(host->addr, MMCIF_CE_VERSION) & 0x0000ffff);
 	return ret;
 
+clean_up5:
+	free_irq(irq[1], host);
+clean_up4:
+	free_irq(irq[0], host);
 clean_up3:
-	mmc_remove_host(mmc);
 	pm_runtime_suspend(&pdev->dev);
 clean_up2:
 	pm_runtime_disable(&pdev->dev);
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index a95e6d9..f96c536 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -20,8 +20,8 @@
 #include <linux/mmc/tmio.h>
 #include <linux/mutex.h>
 #include <linux/pagemap.h>
-#include <linux/spinlock.h>
 #include <linux/scatterlist.h>
+#include <linux/spinlock.h>
 
 /* Definitions for values the CTRL_SDIO_STATUS register can take. */
 #define TMIO_SDIO_STAT_IOIRQ	0x0001
@@ -120,6 +120,7 @@ void tmio_mmc_start_dma(struct tmio_mmc_host *host, struct mmc_data *data);
 void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable);
 void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata);
 void tmio_mmc_release_dma(struct tmio_mmc_host *host);
+void tmio_mmc_abort_dma(struct tmio_mmc_host *host);
 #else
 static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host,
 			       struct mmc_data *data)
@@ -140,6 +141,10 @@ static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host,
 static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host)
 {
 }
+
+static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
+{
+}
 #endif
 
 #ifdef CONFIG_PM
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index 7a6e6cc..8253ec1 100644
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -34,6 +34,18 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
 #endif
 }
 
+void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
+{
+	tmio_mmc_enable_dma(host, false);
+
+	if (host->chan_rx)
+		dmaengine_terminate_all(host->chan_rx);
+	if (host->chan_tx)
+		dmaengine_terminate_all(host->chan_tx);
+
+	tmio_mmc_enable_dma(host, true);
+}
+
 static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
 {
 	struct scatterlist *sg = host->sg_ptr, *sg_tmp;
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index abad01b..5f9ad74 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -41,8 +41,8 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/scatterlist.h>
-#include <linux/workqueue.h>
 #include <linux/spinlock.h>
+#include <linux/workqueue.h>
 
 #include "tmio_mmc.h"
 
@@ -246,6 +246,7 @@ static void tmio_mmc_reset_work(struct work_struct *work)
 	/* Ready for new calls */
 	host->mrq = NULL;
 
+	tmio_mmc_abort_dma(host);
 	mmc_request_done(host->mmc, mrq);
 }
 
@@ -272,6 +273,9 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
 	host->mrq = NULL;
 	spin_unlock_irqrestore(&host->lock, flags);
 
+	if (mrq->cmd->error || (mrq->data && mrq->data->error))
+		tmio_mmc_abort_dma(host);
+
 	mmc_request_done(host->mmc, mrq);
 }