24 files changed, 669 insertions, 596 deletions

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index ce1d28884e29..2e13b94769fd 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -69,20 +69,16 @@ config MMC_SDHCI_PCI
 	  If unsure, say N.
 
 config MMC_RICOH_MMC
-	tristate "Ricoh MMC Controller Disabler  (EXPERIMENTAL)"
+	bool "Ricoh MMC Controller Disabler  (EXPERIMENTAL)"
 	depends on MMC_SDHCI_PCI
 	help
-	  This selects the disabler for the Ricoh MMC Controller. This
+	  This adds a pci quirk to disable Ricoh MMC Controller. This
 	  proprietary controller is unnecessary because the SDHCI driver
 	  supports MMC cards on the SD controller, but if it is not
 	  disabled, it will steal the MMC cards away - rendering them
-	  useless. It is safe to select this driver even if you don't
+	  useless. It is safe to select this even if you don't
 	  have a Ricoh based card reader.
 
-
-	  To compile this driver as a module, choose M here:
-	  the module will be called ricoh_mmc.
-
 	  If unsure, say Y.
 
 config MMC_SDHCI_OF
@@ -193,6 +189,7 @@ config MMC_AU1X
 
 choice
 	prompt "Atmel SD/MMC Driver"
+	depends on AVR32 || ARCH_AT91
 	default MMC_ATMELMCI if AVR32
 	help
 	  Choose which driver to use for the Atmel MCI Silicon
@@ -368,7 +365,7 @@ config MMC_SDRICOH_CS
 
 config MMC_TMIO
 	tristate "Toshiba Mobile IO Controller (TMIO) MMC/SD function support"
-	depends on MFD_TMIO || MFD_ASIC3 || SUPERH
+	depends on MFD_TMIO || MFD_ASIC3 || MFD_SH_MOBILE_SDHI
 	help
 	  This provides support for the SD/MMC cell found in TC6393XB,
 	  T7L66XB and also HTC ASIC3
@@ -399,7 +396,7 @@ config MMC_VIA_SDMMC
 
 config SDH_BFIN
 	tristate "Blackfin Secure Digital Host support"
-	depends on MMC && ((BF54x && !BF544) || (BF51x && !BF512))
+	depends on (BF54x && !BF544) || (BF51x && !BF512)
 	help
 	  If you say yes here you will get support for the Blackfin on-chip
 	  Secure Digital Host interface.  This includes support for MMC and
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index 3d253dd4240f..f4803977dfce 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_MMC_IMX)		+= imxmmc.o
 obj-$(CONFIG_MMC_MXC)		+= mxcmmc.o
 obj-$(CONFIG_MMC_SDHCI)		+= sdhci.o
 obj-$(CONFIG_MMC_SDHCI_PCI)	+= sdhci-pci.o
-obj-$(CONFIG_MMC_RICOH_MMC)	+= ricoh_mmc.o
 obj-$(CONFIG_MMC_SDHCI_PLTFM)	+= sdhci-pltfm.o
 obj-$(CONFIG_MMC_SDHCI_S3C)	+= sdhci-s3c.o
 obj-$(CONFIG_MMC_WBSD)		+= wbsd.o
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 63924e0c7ea9..a6dd7da37357 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -65,6 +65,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/clk.h>
 #include <linux/atmel_pdc.h>
+#include <linux/gfp.h>
 
 #include <linux/mmc/host.h>
 
@@ -78,6 +79,17 @@
 
 #define DRIVER_NAME "at91_mci"
 
+static inline int at91mci_is_mci1rev2xx(void)
+{
+	return (   cpu_is_at91sam9260()
+		|| cpu_is_at91sam9263()
+		|| cpu_is_at91cap9()
+		|| cpu_is_at91sam9rl()
+		|| cpu_is_at91sam9g10()
+		|| cpu_is_at91sam9g20()
+		);
+}
+
 #define FL_SENT_COMMAND	(1 << 0)
 #define FL_SENT_STOP	(1 << 1)
 
@@ -88,6 +100,10 @@
 #define at91_mci_read(host, reg)	__raw_readl((host)->baseaddr + (reg))
 #define at91_mci_write(host, reg, val)	__raw_writel((val), (host)->baseaddr + (reg))
 
+#define MCI_BLKSIZE 		512
+#define MCI_MAXBLKSIZE 		4095
+#define MCI_BLKATONCE 		256
+#define MCI_BUFSIZE 		(MCI_BLKSIZE * MCI_BLKATONCE)
 
 /*
  * Low level type for this driver
@@ -200,8 +216,8 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
 	size = data->blksz * data->blocks;
 	len = data->sg_len;
 
-	/* AT91SAM926[0/3] Data Write Operation and number of bytes erratum */
-	if (cpu_is_at91sam9260() || cpu_is_at91sam9263())
+	/* MCI1 rev2xx Data Write Operation and number of bytes erratum */
+	if (at91mci_is_mci1rev2xx())
 		if (host->total_length == 12)
 			memset(dmabuf, 0, 12);
 
@@ -227,8 +243,10 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
 			for (index = 0; index < (amount / 4); index++)
 				*dmabuf++ = swab32(sgbuffer[index]);
 		} else {
-			memcpy(dmabuf, sgbuffer, amount);
-			dmabuf += amount;
+			char *tmpv = (char *)dmabuf;
+			memcpy(tmpv, sgbuffer, amount);
+			tmpv += amount;
+			dmabuf = (unsigned *)tmpv;
 		}
 
 		kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
@@ -245,80 +263,14 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
 }
 
 /*
- * Prepare a dma read
- */
-static void at91_mci_pre_dma_read(struct at91mci_host *host)
-{
-	int i;
-	struct scatterlist *sg;
-	struct mmc_command *cmd;
-	struct mmc_data *data;
-
-	pr_debug("pre dma read\n");
-
-	cmd = host->cmd;
-	if (!cmd) {
-		pr_debug("no command\n");
-		return;
-	}
-
-	data = cmd->data;
-	if (!data) {
-		pr_debug("no data\n");
-		return;
-	}
-
-	for (i = 0; i < 2; i++) {
-		/* nothing left to transfer */
-		if (host->transfer_index >= data->sg_len) {
-			pr_debug("Nothing left to transfer (index = %d)\n", host->transfer_index);
-			break;
-		}
-
-		/* Check to see if this needs filling */
-		if (i == 0) {
-			if (at91_mci_read(host, ATMEL_PDC_RCR) != 0) {
-				pr_debug("Transfer active in current\n");
-				continue;
-			}
-		}
-		else {
-			if (at91_mci_read(host, ATMEL_PDC_RNCR) != 0) {
-				pr_debug("Transfer active in next\n");
-				continue;
-			}
-		}
-
-		/* Setup the next transfer */
-		pr_debug("Using transfer index %d\n", host->transfer_index);
-
-		sg = &data->sg[host->transfer_index++];
-		pr_debug("sg = %p\n", sg);
-
-		sg->dma_address = dma_map_page(NULL, sg_page(sg), sg->offset, sg->length, DMA_FROM_DEVICE);
-
-		pr_debug("dma address = %08X, length = %d\n", sg->dma_address, sg->length);
-
-		if (i == 0) {
-			at91_mci_write(host, ATMEL_PDC_RPR, sg->dma_address);
-			at91_mci_write(host, ATMEL_PDC_RCR, (data->blksz & 0x3) ? sg->length : sg->length / 4);
-		}
-		else {
-			at91_mci_write(host, ATMEL_PDC_RNPR, sg->dma_address);
-			at91_mci_write(host, ATMEL_PDC_RNCR, (data->blksz & 0x3) ? sg->length : sg->length / 4);
-		}
-	}
-
-	pr_debug("pre dma read done\n");
-}
-
-/*
  * Handle after a dma read
  */
 static void at91_mci_post_dma_read(struct at91mci_host *host)
 {
 	struct mmc_command *cmd;
 	struct mmc_data *data;
+	unsigned int len, i, size;
+	unsigned *dmabuf = host->buffer;
 
 	pr_debug("post dma read\n");
 
@@ -334,42 +286,39 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
 		return;
 	}
 
-	while (host->in_use_index < host->transfer_index) {
-		struct scatterlist *sg;
+	size = data->blksz * data->blocks;
+	len = data->sg_len;
 
-		pr_debug("finishing index %d\n", host->in_use_index);
+	at91_mci_write(host, AT91_MCI_IDR, AT91_MCI_ENDRX);
+	at91_mci_write(host, AT91_MCI_IER, AT91_MCI_RXBUFF);
 
-		sg = &data->sg[host->in_use_index++];
+	for (i = 0; i < len; i++) {
+		struct scatterlist *sg;
+		int amount;
+		unsigned int *sgbuffer;
 
-		pr_debug("Unmapping page %08X\n", sg->dma_address);
+		sg = &data->sg[i];
 
-		dma_unmap_page(NULL, sg->dma_address, sg->length, DMA_FROM_DEVICE);
+		sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+		amount = min(size, sg->length);
+		size -= amount;
 
 		if (cpu_is_at91rm9200()) {	/* AT91RM9200 errata */
-			unsigned int *buffer;
 			int index;
-
-			/* Swap the contents of the buffer */
-			buffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
-			pr_debug("buffer = %p, length = %d\n", buffer, sg->length);
-
-			for (index = 0; index < (sg->length / 4); index++)
-				buffer[index] = swab32(buffer[index]);
-
-			kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+			for (index = 0; index < (amount / 4); index++)
+				sgbuffer[index] = swab32(*dmabuf++);
+		} else {
+			char *tmpv = (char *)dmabuf;
+			memcpy(sgbuffer, tmpv, amount);
+			tmpv += amount;
+			dmabuf = (unsigned *)tmpv;
 		}
 
-		flush_dcache_page(sg_page(sg));
-
-		data->bytes_xfered += sg->length;
-	}
-
-	/* Is there another transfer to trigger? */
-	if (host->transfer_index < data->sg_len)
-		at91_mci_pre_dma_read(host);
-	else {
-		at91_mci_write(host, AT91_MCI_IDR, AT91_MCI_ENDRX);
-		at91_mci_write(host, AT91_MCI_IER, AT91_MCI_RXBUFF);
+		kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
+		dmac_flush_range((void *)sgbuffer, ((void *)sgbuffer) + amount);
+		data->bytes_xfered += amount;
+		if (size == 0)
+			break;
 	}
 
 	pr_debug("post dma read done\n");
@@ -461,7 +410,7 @@ static void at91_mci_enable(struct at91mci_host *host)
 	at91_mci_write(host, AT91_MCI_DTOR, AT91_MCI_DTOMUL_1M | AT91_MCI_DTOCYC);
 	mr = AT91_MCI_PDCMODE | 0x34a;
 
-	if (cpu_is_at91sam9260() || cpu_is_at91sam9263())
+	if (at91mci_is_mci1rev2xx())
 		mr |= AT91_MCI_RDPROOF | AT91_MCI_WRPROOF;
 
 	at91_mci_write(host, AT91_MCI_MR, mr);
@@ -602,10 +551,14 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command
 				/*
 				 * Handle a read
 				 */
-				host->buffer = NULL;
 				host->total_length = 0;
 
-				at91_mci_pre_dma_read(host);
+				at91_mci_write(host, ATMEL_PDC_RPR, host->physical_address);
+				at91_mci_write(host, ATMEL_PDC_RCR, (data->blksz & 0x3) ?
+					(blocks * block_length) : (blocks * block_length) / 4);
+				at91_mci_write(host, ATMEL_PDC_RNPR, 0);
+				at91_mci_write(host, ATMEL_PDC_RNCR, 0);
+
 				ier = AT91_MCI_ENDRX /* | AT91_MCI_RXBUFF */;
 			}
 			else {
@@ -614,27 +567,15 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command
 				 */
 				host->total_length = block_length * blocks;
 				/*
-				 * AT91SAM926[0/3] Data Write Operation and
+				 * MCI1 rev2xx Data Write Operation and
 				 * number of bytes erratum
 				 */
-				if (cpu_is_at91sam9260 () || cpu_is_at91sam9263())
+				if (at91mci_is_mci1rev2xx())
 					if (host->total_length < 12)
 						host->total_length = 12;
 
-				host->buffer = kmalloc(host->total_length, GFP_KERNEL);
-				if (!host->buffer) {
-					pr_debug("Can't alloc tx buffer\n");
-					cmd->error = -ENOMEM;
-					mmc_request_done(host->mmc, host->request);
-					return;
-				}
-
 				at91_mci_sg_to_dma(host, data);
 
-				host->physical_address = dma_map_single(NULL,
-						host->buffer, host->total_length,
-						DMA_TO_DEVICE);
-
 				pr_debug("Transmitting %d bytes\n", host->total_length);
 
 				at91_mci_write(host, ATMEL_PDC_TPR, host->physical_address);
@@ -701,14 +642,6 @@ static void at91_mci_completed_command(struct at91mci_host *host, unsigned int s
 	cmd->resp[2] = at91_mci_read(host, AT91_MCI_RSPR(2));
 	cmd->resp[3] = at91_mci_read(host, AT91_MCI_RSPR(3));
 
-	if (host->buffer) {
-		dma_unmap_single(NULL,
-				host->physical_address, host->total_length,
-				DMA_TO_DEVICE);
-		kfree(host->buffer);
-		host->buffer = NULL;
-	}
-
 	pr_debug("Status = %08X/%08x [%08X %08X %08X %08X]\n",
 		 status, at91_mci_read(host, AT91_MCI_SR),
 		 cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3]);
@@ -754,7 +687,8 @@ static void at91_mci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 	host->request = mrq;
 	host->flags = 0;
 
-	mod_timer(&host->timer, jiffies +  HZ);
+	/* more than 1s timeout needed with slow SD cards */
+	mod_timer(&host->timer, jiffies +  msecs_to_jiffies(2000));
 
 	at91_mci_process_next(host);
 }
@@ -942,7 +876,8 @@ static irqreturn_t at91_mmc_det_irq(int irq, void *_host)
 			pr_debug("****** Resetting SD-card bus width ******\n");
 			at91_mci_write(host, AT91_MCI_SDCR, at91_mci_read(host, AT91_MCI_SDCR) & ~AT91_MCI_SDCBUS);
 		}
-		mmc_detect_change(host->mmc, msecs_to_jiffies(100));
+		/* 0.5s needed because of early card detect switch firing */
+		mmc_detect_change(host->mmc, msecs_to_jiffies(500));
 	}
 	return IRQ_HANDLED;
 }
@@ -1006,24 +941,42 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 	mmc->f_min = 375000;
 	mmc->f_max = 25000000;
 	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
-	mmc->caps = MMC_CAP_SDIO_IRQ;
+	mmc->caps = 0;
 
-	mmc->max_blk_size = 4095;
-	mmc->max_blk_count = mmc->max_req_size;
+	mmc->max_blk_size  = MCI_MAXBLKSIZE;
+	mmc->max_blk_count = MCI_BLKATONCE;
+	mmc->max_req_size  = MCI_BUFSIZE;
+	mmc->max_phys_segs = MCI_BLKATONCE;
+	mmc->max_hw_segs   = MCI_BLKATONCE;
+	mmc->max_seg_size  = MCI_BUFSIZE;
 
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
-	host->buffer = NULL;
 	host->bus_mode = 0;
 	host->board = pdev->dev.platform_data;
 	if (host->board->wire4) {
-		if (cpu_is_at91sam9260() || cpu_is_at91sam9263())
+		if (at91mci_is_mci1rev2xx())
 			mmc->caps |= MMC_CAP_4_BIT_DATA;
 		else
 			dev_warn(&pdev->dev, "4 wire bus mode not supported"
 				" - using 1 wire\n");
 	}
 
+	host->buffer = dma_alloc_coherent(&pdev->dev, MCI_BUFSIZE,
+					&host->physical_address, GFP_KERNEL);
+	if (!host->buffer) {
+		ret = -ENOMEM;
+		dev_err(&pdev->dev, "Can't allocate transmit buffer\n");
+		goto fail5;
+	}
+
+	/* Add SDIO capability when available */
+	if (at91mci_is_mci1rev2xx()) {
+		/* at91mci MCI1 rev2xx sdio interrupt erratum */
+		if (host->board->wire4 || !host->board->slot_b)
+			mmc->caps |= MMC_CAP_SDIO_IRQ;
+	}
+
 	/*
 	 * Reserve GPIOs ... board init code makes sure these pins are set
 	 * up as GPIOs with the right direction (input, except for vcc)
@@ -1032,7 +985,7 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 		ret = gpio_request(host->board->det_pin, "mmc_detect");
 		if (ret < 0) {
 			dev_dbg(&pdev->dev, "couldn't claim card detect pin\n");
-			goto fail5;
+			goto fail4b;
 		}
 	}
 	if (host->board->wp_pin) {
@@ -1132,6 +1085,10 @@ fail3:
 fail4:
 	if (host->board->det_pin)
 		gpio_free(host->board->det_pin);
+fail4b:
+	if (host->buffer)
+		dma_free_coherent(&pdev->dev, MCI_BUFSIZE,
+				host->buffer, host->physical_address);
 fail5:
 	mmc_free_host(mmc);
 fail6:
@@ -1154,6 +1111,10 @@ static int __exit at91_mci_remove(struct platform_device *pdev)
 
 	host = mmc_priv(mmc);
 
+	if (host->buffer)
+		dma_free_coherent(&pdev->dev, MCI_BUFSIZE,
+				host->buffer, host->physical_address);
+
 	if (host->board->det_pin) {
 		if (device_can_wakeup(&pdev->dev))
 			free_irq(gpio_to_irq(host->board->det_pin), host);
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 8072128e933b..88be37d9e9a5 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -22,6 +22,7 @@
 #include <linux/platform_device.h>
 #include <linux/scatterlist.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 #include <linux/stat.h>
 
 #include <linux/mmc/host.h>
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index d3f55615c099..f5834449400e 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -41,6 +41,7 @@
 #include <linux/scatterlist.h>
 #include <linux/leds.h>
 #include <linux/mmc/host.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <asm/mach-au1x00/au1000.h>
@@ -650,11 +651,11 @@ static int au1xmmc_prepare_data(struct au1xmmc_host *host,
 				flags = DDMA_FLAGS_IE;
 
 			if (host->flags & HOST_F_XMIT) {
-				ret = au1xxx_dbdma_put_source_flags(channel,
-					(void *)sg_virt(sg), len, flags);
+				ret = au1xxx_dbdma_put_source(channel,
+					sg_phys(sg), len, flags);
 			} else {
-				ret = au1xxx_dbdma_put_dest_flags(channel,
-					(void *)sg_virt(sg), len, flags);
+				ret = au1xxx_dbdma_put_dest(channel,
+					sg_phys(sg), len, flags);
 			}
 
 			if (!ret)
@@ -1017,6 +1018,10 @@ static int __devinit au1xmmc_probe(struct platform_device *pdev)
 	} else
 		mmc->caps |= MMC_CAP_NEEDS_POLL;
 
+	/* platform may not be able to use all advertised caps */
+	if (host->platdata)
+		mmc->caps &= ~(host->platdata->mask_host_caps);
+
 	tasklet_init(&host->data_task, au1xmmc_tasklet_data,
 			(unsigned long)host);
 
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index 3343a57355cc..6919e844072c 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -17,6 +17,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/mmc/host.h>
 #include <linux/proc_fs.h>
+#include <linux/gfp.h>
 
 #include <asm/cacheflush.h>
 #include <asm/dma.h>
@@ -115,7 +116,7 @@ static int sdh_setup_data(struct sdh_host *host, struct mmc_data *data)
 	unsigned int length;
 	unsigned int data_ctl;
 	unsigned int dma_cfg;
-	struct scatterlist *sg;
+	unsigned int cycle_ns, timeout;
 
 	dev_dbg(mmc_dev(host->mmc), "%s enter flags: 0x%x\n", __func__, data->flags);
 	host->data = data;
@@ -136,8 +137,11 @@ static int sdh_setup_data(struct sdh_host *host, struct mmc_data *data)
 	data_ctl |= ((ffs(data->blksz) - 1) << 4);
 
 	bfin_write_SDH_DATA_CTL(data_ctl);
-
-	bfin_write_SDH_DATA_TIMER(0xFFFF);
+	/* the time of a host clock period in ns */
+	cycle_ns = 1000000000 / (get_sclk() / (2 * (host->clk_div + 1)));
+	timeout = data->timeout_ns / cycle_ns;
+	timeout += data->timeout_clks;
+	bfin_write_SDH_DATA_TIMER(timeout);
 	SSYNC();
 
 	if (data->flags & MMC_DATA_READ) {
@@ -151,6 +155,7 @@ static int sdh_setup_data(struct sdh_host *host, struct mmc_data *data)
 #if defined(CONFIG_BF54x)
 	dma_cfg |= DMAFLOW_ARRAY | NDSIZE_5 | RESTART | WDSIZE_32 | DMAEN;
 	{
+		struct scatterlist *sg;
 		int i;
 		for_each_sg(data->sg, sg, host->dma_len, i) {
 			host->sg_cpu[i].start_addr = sg_dma_address(sg);
diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index 4e72964a7b43..92a324f7417c 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -9,7 +9,6 @@
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include "cb710-mmc.h"
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index dd45e7c3517e..3bd0ba294e9d 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -73,6 +73,7 @@
 /* DAVINCI_MMCCTL definitions */
 #define MMCCTL_DATRST         (1 << 0)
 #define MMCCTL_CMDRST         (1 << 1)
+#define MMCCTL_WIDTH_8_BIT    (1 << 8)
 #define MMCCTL_WIDTH_4_BIT    (1 << 2)
 #define MMCCTL_DATEG_DISABLED (0 << 6)
 #define MMCCTL_DATEG_RISING   (1 << 6)
@@ -791,22 +792,42 @@ static void calculate_clk_divider(struct mmc_host *mmc, struct mmc_ios *ios)
 
 static void mmc_davinci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
-	unsigned int mmc_pclk = 0;
 	struct mmc_davinci_host *host = mmc_priv(mmc);
 
-	mmc_pclk = host->mmc_input_clk;
 	dev_dbg(mmc_dev(host->mmc),
 		"clock %dHz busmode %d powermode %d Vdd %04x\n",
 		ios->clock, ios->bus_mode, ios->power_mode,
 		ios->vdd);
-	if (ios->bus_width == MMC_BUS_WIDTH_4) {
-		dev_dbg(mmc_dev(host->mmc), "Enabling 4 bit mode\n");
-		writel(readl(host->base + DAVINCI_MMCCTL) | MMCCTL_WIDTH_4_BIT,
-			host->base + DAVINCI_MMCCTL);
-	} else {
-		dev_dbg(mmc_dev(host->mmc), "Disabling 4 bit mode\n");
-		writel(readl(host->base + DAVINCI_MMCCTL) & ~MMCCTL_WIDTH_4_BIT,
+
+	switch (ios->bus_width) {
+	case MMC_BUS_WIDTH_8:
+		dev_dbg(mmc_dev(host->mmc), "Enabling 8 bit mode\n");
+		writel((readl(host->base + DAVINCI_MMCCTL) &
+			~MMCCTL_WIDTH_4_BIT) | MMCCTL_WIDTH_8_BIT,
 			host->base + DAVINCI_MMCCTL);
+		break;
+	case MMC_BUS_WIDTH_4:
+		dev_dbg(mmc_dev(host->mmc), "Enabling 4 bit mode\n");
+		if (host->version == MMC_CTLR_VERSION_2)
+			writel((readl(host->base + DAVINCI_MMCCTL) &
+				~MMCCTL_WIDTH_8_BIT) | MMCCTL_WIDTH_4_BIT,
+				host->base + DAVINCI_MMCCTL);
+		else
+			writel(readl(host->base + DAVINCI_MMCCTL) |
+				MMCCTL_WIDTH_4_BIT,
+				host->base + DAVINCI_MMCCTL);
+		break;
+	case MMC_BUS_WIDTH_1:
+		dev_dbg(mmc_dev(host->mmc), "Enabling 1 bit mode\n");
+		if (host->version == MMC_CTLR_VERSION_2)
+			writel(readl(host->base + DAVINCI_MMCCTL) &
+				~(MMCCTL_WIDTH_8_BIT | MMCCTL_WIDTH_4_BIT),
+				host->base + DAVINCI_MMCCTL);
+		else
+			writel(readl(host->base + DAVINCI_MMCCTL) &
+				~MMCCTL_WIDTH_4_BIT,
+				host->base + DAVINCI_MMCCTL);
+		break;
 	}
 
 	calculate_clk_divider(mmc, ios);
@@ -1189,10 +1210,14 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
 
 	/* REVISIT:  someday, support IRQ-driven card detection.  */
 	mmc->caps |= MMC_CAP_NEEDS_POLL;
+	mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
 
-	if (!pdata || pdata->wires == 4 || pdata->wires == 0)
+	if (pdata && (pdata->wires == 4 || pdata->wires == 0))
 		mmc->caps |= MMC_CAP_4_BIT_DATA;
 
+	if (pdata && (pdata->wires == 8))
+		mmc->caps |= (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA);
+
 	host->version = pdata->version;
 
 	mmc->ops = &mmc_davinci_ops;
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index d55fe4fb7935..ad847a24a675 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -26,6 +26,7 @@
  */
 #include <linux/sched.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 #include <linux/bio.h>
 #include <linux/dma-mapping.h>
 #include <linux/crc7.h>
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 90d168ad03b6..84c103a7ee13 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -2,6 +2,7 @@
  *  linux/drivers/mmc/host/mmci.c - ARM PrimeCell MMCI PL180/1 driver
  *
  *  Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
+ *  Copyright (C) 2010 ST-Ericsson AB.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -34,9 +35,6 @@
 
 #define DRIVER_NAME "mmci-pl18x"
 
-#define DBG(host,fmt,args...)	\
-	pr_debug("%s: %s: " fmt, mmc_hostname(host->mmc), __func__ , args)
-
 static unsigned int fmax = 515633;
 
 /*
@@ -105,8 +103,8 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
 	void __iomem *base;
 	int blksz_bits;
 
-	DBG(host, "blksz %04x blks %04x flags %08x\n",
-	    data->blksz, data->blocks, data->flags);
+	dev_dbg(mmc_dev(host->mmc), "blksz %04x blks %04x flags %08x\n",
+		data->blksz, data->blocks, data->flags);
 
 	host->data = data;
 	host->size = data->blksz;
@@ -155,7 +153,7 @@ mmci_start_command(struct mmci_host *host, struct mmc_command *cmd, u32 c)
 {
 	void __iomem *base = host->base;
 
-	DBG(host, "op %02x arg %08x flags %08x\n",
+	dev_dbg(mmc_dev(host->mmc), "op %02x arg %08x flags %08x\n",
 	    cmd->opcode, cmd->arg, cmd->flags);
 
 	if (readl(base + MMCICOMMAND) & MCI_CPSM_ENABLE) {
@@ -184,8 +182,20 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
 {
 	if (status & MCI_DATABLOCKEND) {
 		host->data_xfered += data->blksz;
+#ifdef CONFIG_ARCH_U300
+		/*
+		 * On the U300 some signal or other is
+		 * badly routed so that a data write does
+		 * not properly terminate with a MCI_DATAEND
+		 * status flag. This quirk will make writes
+		 * work again.
+		 */
+		if (data->flags & MMC_DATA_WRITE)
+			status |= MCI_DATAEND;
+#endif
 	}
 	if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) {
+		dev_dbg(mmc_dev(host->mmc), "MCI ERROR IRQ (status %08x)\n", status);
 		if (status & MCI_DATACRCFAIL)
 			data->error = -EILSEQ;
 		else if (status & MCI_DATATIMEOUT)
@@ -307,7 +317,7 @@ static irqreturn_t mmci_pio_irq(int irq, void *dev_id)
 
 	status = readl(base + MMCISTATUS);
 
-	DBG(host, "irq1 %08x\n", status);
+	dev_dbg(mmc_dev(host->mmc), "irq1 (pio) %08x\n", status);
 
 	do {
 		unsigned long flags;
@@ -401,7 +411,7 @@ static irqreturn_t mmci_irq(int irq, void *dev_id)
 		status &= readl(host->base + MMCIMASK0);
 		writel(status, host->base + MMCICLEAR);
 
-		DBG(host, "irq0 %08x\n", status);
+		dev_dbg(mmc_dev(host->mmc), "irq0 (data+cmd) %08x\n", status);
 
 		data = host->data;
 		if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|
@@ -428,8 +438,8 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 	WARN_ON(host->mrq != NULL);
 
 	if (mrq->data && !is_power_of_2(mrq->data->blksz)) {
-		printk(KERN_ERR "%s: Unsupported block size (%d bytes)\n",
-			mmc_hostname(mmc), mrq->data->blksz);
+		dev_err(mmc_dev(mmc), "unsupported block size (%d bytes)\n",
+			mrq->data->blksz);
 		mrq->cmd->error = -EINVAL;
 		mmc_request_done(mmc, mrq);
 		return;
@@ -582,8 +592,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
 
 	host->hw_designer = amba_manf(dev);
 	host->hw_revision = amba_rev(dev);
-	DBG(host, "designer ID = 0x%02x\n", host->hw_designer);
-	DBG(host, "revision = 0x%01x\n", host->hw_revision);
+	dev_dbg(mmc_dev(mmc), "designer ID = 0x%02x\n", host->hw_designer);
+	dev_dbg(mmc_dev(mmc), "revision = 0x%01x\n", host->hw_revision);
 
 	host->clk = clk_get(&dev->dev, NULL);
 	if (IS_ERR(host->clk)) {
@@ -608,7 +618,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
 		if (ret < 0)
 			goto clk_disable;
 		host->mclk = clk_get_rate(host->clk);
-		DBG(host, "eventual mclk rate: %u Hz\n", host->mclk);
+		dev_dbg(mmc_dev(mmc), "eventual mclk rate: %u Hz\n",
+			host->mclk);
 	}
 	host->base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!host->base) {
@@ -619,6 +630,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
 	mmc->ops = &mmci_ops;
 	mmc->f_min = (host->mclk + 511) / 512;
 	mmc->f_max = min(host->mclk, fmax);
+	dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
+
 #ifdef CONFIG_REGULATOR
 	/* If we're using the regulator framework, try to fetch a regulator */
 	host->vcc = regulator_get(&dev->dev, "vmmc");
@@ -712,7 +725,7 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
 
 	mmc_add_host(mmc);
 
-	printk(KERN_INFO "%s: MMCI rev %x cfg %02x at 0x%016llx irq %d,%d\n",
+	dev_info(&dev->dev, "%s: MMCI rev %x cfg %02x at 0x%016llx irq %d,%d\n",
 		mmc_hostname(mmc), amba_rev(dev), amba_config(dev),
 		(unsigned long long)dev->res.start, dev->irq[0], dev->irq[1]);
 
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index b31946e0b4ca..04ae884383f6 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -33,6 +33,7 @@
 #include <linux/debugfs.h>
 #include <linux/io.h>
 #include <linux/memory.h>
+#include <linux/gfp.h>
 
 #include <asm/cacheflush.h>
 #include <asm/div64.h>
@@ -1250,9 +1251,7 @@ msmsdcc_resume(struct platform_device *dev)
 
 		if (mmc->card && mmc->card->type != MMC_TYPE_SDIO)
 			mmc_resume_host(mmc);
-			if (host->stat_irq)
-				enable_irq(host->stat_irq);
-		else if (host->stat_irq)
+		if (host->stat_irq)
 			enable_irq(host->stat_irq);
 	}
 	return 0;
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 60a2b69e54f5..2df90412abb5 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -4,7 +4,7 @@
  *  This is a driver for the SDHC controller found in Freescale MX2/MX3
  *  SoCs. It is basically the same hardware as found on MX1 (imxmmc.c).
  *  Unlike the hardware found on MX1, this hardware just works and does
- *  not need all the quirks found in imxmmc.c, hence the seperate driver.
+ *  not need all the quirks found in imxmmc.c, hence the separate driver.
  *
  *  Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
  *  Copyright (C) 2006 Pavel Pisa, PiKRON <ppisa@pikron.com>
@@ -708,7 +708,7 @@ static int mxcmci_probe(struct platform_device *pdev)
 	mmc->max_blk_size = 2048;
 	mmc->max_blk_count = 65535;
 	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
-	mmc->max_seg_size = mmc->max_seg_size;
+	mmc->max_seg_size = mmc->max_req_size;
 
 	host = mmc_priv(mmc);
 	host->base = ioremap(r->start, resource_size(r));
diff --git a/drivers/mmc/host/of_mmc_spi.c b/drivers/mmc/host/of_mmc_spi.c
index 0c7a63c1f12f..bb6cc54b558e 100644
--- a/drivers/mmc/host/of_mmc_spi.c
+++ b/drivers/mmc/host/of_mmc_spi.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index c6d7e8ecadbf..84d280406341 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -26,6 +26,7 @@
 #include <linux/clk.h>
 #include <linux/scatterlist.h>
 #include <linux/i2c/tps65010.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 4b2322518909..e9caf694c59e 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -30,6 +30,8 @@
 #include <linux/mmc/core.h>
 #include <linux/io.h>
 #include <linux/semaphore.h>
+#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
 #include <plat/dma.h>
 #include <mach/hardware.h>
 #include <plat/board.h>
@@ -146,6 +148,15 @@ struct omap_hsmmc_host {
 	struct	clk		*fclk;
 	struct	clk		*iclk;
 	struct	clk		*dbclk;
+	/*
+	 * vcc == configured supply
+	 * vcc_aux == optional
+	 *   -	MMC1, supply for DAT4..DAT7
+	 *   -	MMC2/MMC2, external level shifter voltage supply, for
+	 *	chip (SDIO, eMMC, etc) or transceiver (MMC2 only)
+	 */
+	struct	regulator	*vcc;
+	struct	regulator	*vcc_aux;
 	struct	semaphore	sem;
 	struct	work_struct	mmc_carddetect_work;
 	void	__iomem		*base;
@@ -171,10 +182,337 @@ struct omap_hsmmc_host {
 	int			vdd;
 	int			protect_card;
 	int			reqs_blocked;
+	int			use_reg;
 
 	struct	omap_mmc_platform_data	*pdata;
 };
 
+static int omap_hsmmc_card_detect(struct device *dev, int slot)
+{
+	struct omap_mmc_platform_data *mmc = dev->platform_data;
+
+	/* NOTE: assumes card detect signal is active-low */
+	return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
+}
+
+static int omap_hsmmc_get_wp(struct device *dev, int slot)
+{
+	struct omap_mmc_platform_data *mmc = dev->platform_data;
+
+	/* NOTE: assumes write protect signal is active-high */
+	return gpio_get_value_cansleep(mmc->slots[0].gpio_wp);
+}
+
+static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
+{
+	struct omap_mmc_platform_data *mmc = dev->platform_data;
+
+	/* NOTE: assumes card detect signal is active-low */
+	return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
+}
+
+#ifdef CONFIG_PM
+
+static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
+{
+	struct omap_mmc_platform_data *mmc = dev->platform_data;
+
+	disable_irq(mmc->slots[0].card_detect_irq);
+	return 0;
+}
+
+static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
+{
+	struct omap_mmc_platform_data *mmc = dev->platform_data;
+
+	enable_irq(mmc->slots[0].card_detect_irq);
+	return 0;
+}
+
+#else
+
+#define omap_hsmmc_suspend_cdirq	NULL
+#define omap_hsmmc_resume_cdirq		NULL
+
+#endif
+
+#ifdef CONFIG_REGULATOR
+
+static int omap_hsmmc_1_set_power(struct device *dev, int slot, int power_on,
+				  int vdd)
+{
+	struct omap_hsmmc_host *host =
+		platform_get_drvdata(to_platform_device(dev));
+	int ret;
+
+	if (mmc_slot(host).before_set_reg)
+		mmc_slot(host).before_set_reg(dev, slot, power_on, vdd);
+
+	if (power_on)
+		ret = mmc_regulator_set_ocr(host->vcc, vdd);
+	else
+		ret = mmc_regulator_set_ocr(host->vcc, 0);
+
+	if (mmc_slot(host).after_set_reg)
+		mmc_slot(host).after_set_reg(dev, slot, power_on, vdd);
+
+	return ret;
+}
+
+static int omap_hsmmc_23_set_power(struct device *dev, int slot, int power_on,
+				   int vdd)
+{
+	struct omap_hsmmc_host *host =
+		platform_get_drvdata(to_platform_device(dev));
+	int ret = 0;
+
+	/*
+	 * If we don't see a Vcc regulator, assume it's a fixed
+	 * voltage always-on regulator.
+	 */
+	if (!host->vcc)
+		return 0;
+
+	if (mmc_slot(host).before_set_reg)
+		mmc_slot(host).before_set_reg(dev, slot, power_on, vdd);
+
+	/*
+	 * Assume Vcc regulator is used only to power the card ... OMAP
+	 * VDDS is used to power the pins, optionally with a transceiver to
+	 * support cards using voltages other than VDDS (1.8V nominal).  When a
+	 * transceiver is used, DAT3..7 are muxed as transceiver control pins.
+	 *
+	 * In some cases this regulator won't support enable/disable;
+	 * e.g. it's a fixed rail for a WLAN chip.
+	 *
+	 * In other cases vcc_aux switches interface power.  Example, for
+	 * eMMC cards it represents VccQ.  Sometimes transceivers or SDIO
+	 * chips/cards need an interface voltage rail too.
+	 */
+	if (power_on) {
+		ret = mmc_regulator_set_ocr(host->vcc, vdd);
+		/* Enable interface voltage rail, if needed */
+		if (ret == 0 && host->vcc_aux) {
+			ret = regulator_enable(host->vcc_aux);
+			if (ret < 0)
+				ret = mmc_regulator_set_ocr(host->vcc, 0);
+		}
+	} else {
+		if (host->vcc_aux)
+			ret = regulator_disable(host->vcc_aux);
+		if (ret == 0)
+			ret = mmc_regulator_set_ocr(host->vcc, 0);
+	}
+
+	if (mmc_slot(host).after_set_reg)
+		mmc_slot(host).after_set_reg(dev, slot, power_on, vdd);
+
+	return ret;
+}
+
+static int omap_hsmmc_1_set_sleep(struct device *dev, int slot, int sleep,
+				  int vdd, int cardsleep)
+{
+	struct omap_hsmmc_host *host =
+		platform_get_drvdata(to_platform_device(dev));
+	int mode = sleep ? REGULATOR_MODE_STANDBY : REGULATOR_MODE_NORMAL;
+
+	return regulator_set_mode(host->vcc, mode);
+}
+
+static int omap_hsmmc_23_set_sleep(struct device *dev, int slot, int sleep,
+				   int vdd, int cardsleep)
+{
+	struct omap_hsmmc_host *host =
+		platform_get_drvdata(to_platform_device(dev));
+	int err, mode;
+
+	/*
+	 * If we don't see a Vcc regulator, assume it's a fixed
+	 * voltage always-on regulator.
+	 */
+	if (!host->vcc)
+		return 0;
+
+	mode = sleep ? REGULATOR_MODE_STANDBY : REGULATOR_MODE_NORMAL;
+
+	if (!host->vcc_aux)
+		return regulator_set_mode(host->vcc, mode);
+
+	if (cardsleep) {
+		/* VCC can be turned off if card is asleep */
+		if (sleep)
+			err = mmc_regulator_set_ocr(host->vcc, 0);
+		else
+			err = mmc_regulator_set_ocr(host->vcc, vdd);
+	} else
+		err = regulator_set_mode(host->vcc, mode);
+	if (err)
+		return err;
+
+	if (!mmc_slot(host).vcc_aux_disable_is_sleep)
+		return regulator_set_mode(host->vcc_aux, mode);
+
+	if (sleep)
+		return regulator_disable(host->vcc_aux);
+	else
+		return regulator_enable(host->vcc_aux);
+}
+
+static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
+{
+	struct regulator *reg;
+	int ret = 0;
+
+	switch (host->id) {
+	case OMAP_MMC1_DEVID:
+		/* On-chip level shifting via PBIAS0/PBIAS1 */
+		mmc_slot(host).set_power = omap_hsmmc_1_set_power;
+		mmc_slot(host).set_sleep = omap_hsmmc_1_set_sleep;
+		break;
+	case OMAP_MMC2_DEVID:
+	case OMAP_MMC3_DEVID:
+		/* Off-chip level shifting, or none */
+		mmc_slot(host).set_power = omap_hsmmc_23_set_power;
+		mmc_slot(host).set_sleep = omap_hsmmc_23_set_sleep;
+		break;
+	default:
+		pr_err("MMC%d configuration not supported!\n", host->id);
+		return -EINVAL;
+	}
+
+	reg = regulator_get(host->dev, "vmmc");
+	if (IS_ERR(reg)) {
+		dev_dbg(host->dev, "vmmc regulator missing\n");
+		/*
+		* HACK: until fixed.c regulator is usable,
+		* we don't require a main regulator
+		* for MMC2 or MMC3
+		*/
+		if (host->id == OMAP_MMC1_DEVID) {
+			ret = PTR_ERR(reg);
+			goto err;
+		}
+	} else {
+		host->vcc = reg;
+		mmc_slot(host).ocr_mask = mmc_regulator_get_ocrmask(reg);
+
+		/* Allow an aux regulator */
+		reg = regulator_get(host->dev, "vmmc_aux");
+		host->vcc_aux = IS_ERR(reg) ? NULL : reg;
+
+		/*
+		* UGLY HACK:  workaround regulator framework bugs.
+		* When the bootloader leaves a supply active, it's
+		* initialized with zero usecount ... and we can't
+		* disable it without first enabling it.  Until the
+		* framework is fixed, we need a workaround like this
+		* (which is safe for MMC, but not in general).
+		*/
+		if (regulator_is_enabled(host->vcc) > 0) {
+			regulator_enable(host->vcc);
+			regulator_disable(host->vcc);
+		}
+		if (host->vcc_aux) {
+			if (regulator_is_enabled(reg) > 0) {
+				regulator_enable(reg);
+				regulator_disable(reg);
+			}
+		}
+	}
+
+	return 0;
+
+err:
+	mmc_slot(host).set_power = NULL;
+	mmc_slot(host).set_sleep = NULL;
+	return ret;
+}
+
+static void omap_hsmmc_reg_put(struct omap_hsmmc_host *host)
+{
+	regulator_put(host->vcc);
+	regulator_put(host->vcc_aux);
+	mmc_slot(host).set_power = NULL;
+	mmc_slot(host).set_sleep = NULL;
+}
+
+static inline int omap_hsmmc_have_reg(void)
+{
+	return 1;
+}
+
+#else
+
+static inline int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
+{
+	return -EINVAL;
+}
+
+static inline void omap_hsmmc_reg_put(struct omap_hsmmc_host *host)
+{
+}
+
+static inline int omap_hsmmc_have_reg(void)
+{
+	return 0;
+}
+
+#endif
+
+static int omap_hsmmc_gpio_init(struct omap_mmc_platform_data *pdata)
+{
+	int ret;
+
+	if (gpio_is_valid(pdata->slots[0].switch_pin)) {
+		pdata->suspend = omap_hsmmc_suspend_cdirq;
+		pdata->resume = omap_hsmmc_resume_cdirq;
+		if (pdata->slots[0].cover)
+			pdata->slots[0].get_cover_state =
+					omap_hsmmc_get_cover_state;
+		else
+			pdata->slots[0].card_detect = omap_hsmmc_card_detect;
+		pdata->slots[0].card_detect_irq =
+				gpio_to_irq(pdata->slots[0].switch_pin);
+		ret = gpio_request(pdata->slots[0].switch_pin, "mmc_cd");
+		if (ret)
+			return ret;
+		ret = gpio_direction_input(pdata->slots[0].switch_pin);
+		if (ret)
+			goto err_free_sp;
+	} else
+		pdata->slots[0].switch_pin = -EINVAL;
+
+	if (gpio_is_valid(pdata->slots[0].gpio_wp)) {
+		pdata->slots[0].get_ro = omap_hsmmc_get_wp;
+		ret = gpio_request(pdata->slots[0].gpio_wp, "mmc_wp");
+		if (ret)
+			goto err_free_cd;
+		ret = gpio_direction_input(pdata->slots[0].gpio_wp);
+		if (ret)
+			goto err_free_wp;
+	} else
+		pdata->slots[0].gpio_wp = -EINVAL;
+
+	return 0;
+
+err_free_wp:
+	gpio_free(pdata->slots[0].gpio_wp);
+err_free_cd:
+	if (gpio_is_valid(pdata->slots[0].switch_pin))
+err_free_sp:
+		gpio_free(pdata->slots[0].switch_pin);
+	return ret;
+}
+
+static void omap_hsmmc_gpio_free(struct omap_mmc_platform_data *pdata)
+{
+	if (gpio_is_valid(pdata->slots[0].gpio_wp))
+		gpio_free(pdata->slots[0].gpio_wp);
+	if (gpio_is_valid(pdata->slots[0].switch_pin))
+		gpio_free(pdata->slots[0].switch_pin);
+}
+
 /*
  * Stop clock to the card
  */
@@ -835,21 +1173,16 @@ static void omap_hsmmc_detect(struct work_struct *work)
 	sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
 
 	if (slot->card_detect)
-		carddetect = slot->card_detect(slot->card_detect_irq);
+		carddetect = slot->card_detect(host->dev, host->slot_id);
 	else {
 		omap_hsmmc_protect_card(host);
 		carddetect = -ENOSYS;
 	}
 
-	if (carddetect) {
+	if (carddetect)
 		mmc_detect_change(host->mmc, (HZ * 200) / 1000);
-	} else {
-		mmc_host_enable(host->mmc);
-		omap_hsmmc_reset_controller_fsm(host, SRD);
-		mmc_host_lazy_disable(host->mmc);
-
+	else
 		mmc_detect_change(host->mmc, (HZ * 50) / 1000);
-	}
 }
 
 /*
@@ -1242,7 +1575,7 @@ static int omap_hsmmc_get_cd(struct mmc_host *mmc)
 
 	if (!mmc_slot(host).card_detect)
 		return -ENOSYS;
-	return mmc_slot(host).card_detect(mmc_slot(host).card_detect_irq);
+	return mmc_slot(host).card_detect(host->dev, host->slot_id);
 }
 
 static int omap_hsmmc_get_ro(struct mmc_host *mmc)
@@ -1311,7 +1644,7 @@ static int omap_hsmmc_enabled_to_disabled(struct omap_hsmmc_host *host)
 	if (host->power_mode == MMC_POWER_OFF)
 		return 0;
 
-	return msecs_to_jiffies(OMAP_MMC_SLEEP_TIMEOUT);
+	return OMAP_MMC_SLEEP_TIMEOUT;
 }
 
 /* Handler for [DISABLED -> REGSLEEP / CARDSLEEP] transition */
@@ -1347,11 +1680,14 @@ static int omap_hsmmc_disabled_to_sleep(struct omap_hsmmc_host *host)
 	dev_dbg(mmc_dev(host->mmc), "DISABLED -> %s\n",
 		host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP");
 
+	if (mmc_slot(host).no_off)
+		return 0;
+
 	if ((host->mmc->caps & MMC_CAP_NONREMOVABLE) ||
 	    mmc_slot(host).card_detect ||
 	    (mmc_slot(host).get_cover_state &&
 	     mmc_slot(host).get_cover_state(host->dev, host->slot_id)))
-		return msecs_to_jiffies(OMAP_MMC_OFF_TIMEOUT);
+		return OMAP_MMC_OFF_TIMEOUT;
 
 	return 0;
 }
@@ -1362,6 +1698,9 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host)
 	if (!mmc_try_claim_host(host->mmc))
 		return 0;
 
+	if (mmc_slot(host).no_off)
+		return 0;
+
 	if (!((host->mmc->caps & MMC_CAP_NONREMOVABLE) ||
 	      mmc_slot(host).card_detect ||
 	      (mmc_slot(host).get_cover_state &&
@@ -1616,7 +1955,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 	struct mmc_host *mmc;
 	struct omap_hsmmc_host *host = NULL;
 	struct resource *res;
-	int ret = 0, irq;
+	int ret, irq;
 
 	if (pdata == NULL) {
 		dev_err(&pdev->dev, "Platform Data is missing\n");
@@ -1638,10 +1977,14 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 	if (res == NULL)
 		return -EBUSY;
 
+	ret = omap_hsmmc_gpio_init(pdata);
+	if (ret)
+		goto err;
+
 	mmc = mmc_alloc_host(sizeof(struct omap_hsmmc_host), &pdev->dev);
 	if (!mmc) {
 		ret = -ENOMEM;
-		goto err;
+		goto err_alloc;
 	}
 
 	host		= mmc_priv(mmc);
@@ -1656,7 +1999,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 	host->slot_id	= 0;
 	host->mapbase	= res->start;
 	host->base	= ioremap(host->mapbase, SZ_4K);
-	host->power_mode = -1;
+	host->power_mode = MMC_POWER_OFF;
 
 	platform_set_drvdata(pdev, host);
 	INIT_WORK(&host->mmc_carddetect_work, omap_hsmmc_detect);
@@ -1666,6 +2009,13 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 	else
 		mmc->ops	= &omap_hsmmc_ops;
 
+	/*
+	 * If regulator_disable can only put vcc_aux to sleep then there is
+	 * no off state.
+	 */
+	if (mmc_slot(host).vcc_aux_disable_is_sleep)
+		mmc_slot(host).no_off = 1;
+
 	mmc->f_min	= 400000;
 	mmc->f_max	= 52000000;
 
@@ -1781,7 +2131,6 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 
-	/* initialize power supplies, gpios, etc */
 	if (pdata->init != NULL) {
 		if (pdata->init(&pdev->dev) != 0) {
 			dev_dbg(mmc_dev(host->mmc),
@@ -1789,6 +2138,14 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 			goto err_irq_cd_init;
 		}
 	}
+
+	if (omap_hsmmc_have_reg() && !mmc_slot(host).set_power) {
+		ret = omap_hsmmc_reg_get(host);
+		if (ret)
+			goto err_reg;
+		host->use_reg = 1;
+	}
+
 	mmc->ocr_avail = mmc_slot(host).ocr_mask;
 
 	/* Request IRQ for card detect */
@@ -1823,19 +2180,22 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 		ret = device_create_file(&mmc->class_dev,
 					&dev_attr_cover_switch);
 		if (ret < 0)
-			goto err_cover_switch;
+			goto err_slot_name;
 	}
 
 	omap_hsmmc_debugfs(mmc);
 
 	return 0;
 
-err_cover_switch:
-	device_remove_file(&mmc->class_dev, &dev_attr_cover_switch);
 err_slot_name:
 	mmc_remove_host(mmc);
-err_irq_cd:
 	free_irq(mmc_slot(host).card_detect_irq, host);
+err_irq_cd:
+	if (host->use_reg)
+		omap_hsmmc_reg_put(host);
+err_reg:
+	if (host->pdata->cleanup)
+		host->pdata->cleanup(&pdev->dev);
 err_irq_cd_init:
 	free_irq(host->irq, host);
 err_irq:
@@ -1847,14 +2207,14 @@ err_irq:
 		clk_disable(host->dbclk);
 		clk_put(host->dbclk);
 	}
-
 err1:
 	iounmap(host->base);
+	platform_set_drvdata(pdev, NULL);
+	mmc_free_host(mmc);
+err_alloc:
+	omap_hsmmc_gpio_free(pdata);
 err:
-	dev_dbg(mmc_dev(host->mmc), "Probe Failed\n");
 	release_mem_region(res->start, res->end - res->start + 1);
-	if (host)
-		mmc_free_host(mmc);
 	return ret;
 }
 
@@ -1866,6 +2226,8 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 	if (host) {
 		mmc_host_enable(host->mmc);
 		mmc_remove_host(host->mmc);
+		if (host->use_reg)
+			omap_hsmmc_reg_put(host);
 		if (host->pdata->cleanup)
 			host->pdata->cleanup(&pdev->dev);
 		free_irq(host->irq, host);
@@ -1884,6 +2246,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 
 		mmc_free_host(host->mmc);
 		iounmap(host->base);
+		omap_hsmmc_gpio_free(pdev->dev.platform_data);
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 0d783f3e79ed..0ed48959b590 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -29,6 +29,7 @@
 #include <linux/io.h>
 #include <linux/regulator/consumer.h>
 #include <linux/gpio.h>
+#include <linux/gfp.h>
 
 #include <asm/sizes.h>
 
diff --git a/drivers/mmc/host/ricoh_mmc.c b/drivers/mmc/host/ricoh_mmc.c
deleted file mode 100644
index f62790513322..000000000000
--- a/drivers/mmc/host/ricoh_mmc.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- *  ricoh_mmc.c - Dummy driver to disable the Rioch MMC controller.
- *
- *  Copyright (C) 2007 Philip Langdale, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- */
-
-/*
- * This is a conceptually ridiculous driver, but it is required by the way
- * the Ricoh multi-function chips (R5CXXX) work. These chips implement
- * the four main memory card controllers (SD, MMC, MS, xD) and one or both
- * of cardbus or firewire. It happens that they implement SD and MMC
- * support as separate controllers (and PCI functions). The linux SDHCI
- * driver supports MMC cards but the chip detects MMC cards in hardware
- * and directs them to the MMC controller - so the SDHCI driver never sees
- * them. To get around this, we must disable the useless MMC controller.
- * At that point, the SDHCI controller will start seeing them. As a bonus,
- * a detection event occurs immediately, even if the MMC card is already
- * in the reader.
- *
- * It seems to be the case that the relevant PCI registers to deactivate the
- * MMC controller live on PCI function 0, which might be the cardbus controller
- * or the firewire controller, depending on the particular chip in question. As
- * such, it makes what this driver has to do unavoidably ugly. Such is life.
- */
-
-#include <linux/pci.h>
-
-#define DRIVER_NAME "ricoh-mmc"
-
-static const struct pci_device_id pci_ids[] __devinitdata = {
-	{
-		.vendor		= PCI_VENDOR_ID_RICOH,
-		.device		= PCI_DEVICE_ID_RICOH_R5C843,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-	},
-	{ /* end: all zeroes */ },
-};
-
-MODULE_DEVICE_TABLE(pci, pci_ids);
-
-static int ricoh_mmc_disable(struct pci_dev *fw_dev)
-{
-	u8 write_enable;
-	u8 write_target;
-	u8 disable;
-
-	if (fw_dev->device == PCI_DEVICE_ID_RICOH_RL5C476) {
-		/* via RL5C476 */
-
-		pci_read_config_byte(fw_dev, 0xB7, &disable);
-		if (disable & 0x02) {
-			printk(KERN_INFO DRIVER_NAME
-				": Controller already disabled. " \
-				"Nothing to do.\n");
-			return -ENODEV;
-		}
-
-		pci_read_config_byte(fw_dev, 0x8E, &write_enable);
-		pci_write_config_byte(fw_dev, 0x8E, 0xAA);
-		pci_read_config_byte(fw_dev, 0x8D, &write_target);
-		pci_write_config_byte(fw_dev, 0x8D, 0xB7);
-		pci_write_config_byte(fw_dev, 0xB7, disable | 0x02);
-		pci_write_config_byte(fw_dev, 0x8E, write_enable);
-		pci_write_config_byte(fw_dev, 0x8D, write_target);
-	} else {
-		/* via R5C832 */
-
-		pci_read_config_byte(fw_dev, 0xCB, &disable);
-		if (disable & 0x02) {
-			printk(KERN_INFO DRIVER_NAME
-			       ": Controller already disabled. " \
-				"Nothing to do.\n");
-			return -ENODEV;
-		}
-
-		pci_read_config_byte(fw_dev, 0xCA, &write_enable);
-		pci_write_config_byte(fw_dev, 0xCA, 0x57);
-		pci_write_config_byte(fw_dev, 0xCB, disable | 0x02);
-		pci_write_config_byte(fw_dev, 0xCA, write_enable);
-	}
-
-	printk(KERN_INFO DRIVER_NAME
-	       ": Controller is now disabled.\n");
-
-	return 0;
-}
-
-static int ricoh_mmc_enable(struct pci_dev *fw_dev)
-{
-	u8 write_enable;
-	u8 write_target;
-	u8 disable;
-
-	if (fw_dev->device == PCI_DEVICE_ID_RICOH_RL5C476) {
-		/* via RL5C476 */
-
-		pci_read_config_byte(fw_dev, 0x8E, &write_enable);
-		pci_write_config_byte(fw_dev, 0x8E, 0xAA);
-		pci_read_config_byte(fw_dev, 0x8D, &write_target);
-		pci_write_config_byte(fw_dev, 0x8D, 0xB7);
-		pci_read_config_byte(fw_dev, 0xB7, &disable);
-		pci_write_config_byte(fw_dev, 0xB7, disable & ~0x02);
-		pci_write_config_byte(fw_dev, 0x8E, write_enable);
-		pci_write_config_byte(fw_dev, 0x8D, write_target);
-	} else {
-		/* via R5C832 */
-
-		pci_read_config_byte(fw_dev, 0xCA, &write_enable);
-		pci_read_config_byte(fw_dev, 0xCB, &disable);
-		pci_write_config_byte(fw_dev, 0xCA, 0x57);
-		pci_write_config_byte(fw_dev, 0xCB, disable & ~0x02);
-		pci_write_config_byte(fw_dev, 0xCA, write_enable);
-	}
-
-	printk(KERN_INFO DRIVER_NAME
-	       ": Controller is now re-enabled.\n");
-
-	return 0;
-}
-
-static int __devinit ricoh_mmc_probe(struct pci_dev *pdev,
-				     const struct pci_device_id *ent)
-{
-	u8 rev;
-	u8 ctrlfound = 0;
-
-	struct pci_dev *fw_dev = NULL;
-
-	BUG_ON(pdev == NULL);
-	BUG_ON(ent == NULL);
-
-	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &rev);
-
-	printk(KERN_INFO DRIVER_NAME
-		": Ricoh MMC controller found at %s [%04x:%04x] (rev %x)\n",
-		pci_name(pdev), (int)pdev->vendor, (int)pdev->device,
-		(int)rev);
-
-	while ((fw_dev =
-		pci_get_device(PCI_VENDOR_ID_RICOH,
-			PCI_DEVICE_ID_RICOH_RL5C476, fw_dev))) {
-		if (PCI_SLOT(pdev->devfn) == PCI_SLOT(fw_dev->devfn) &&
-		    PCI_FUNC(fw_dev->devfn) == 0 &&
-		    pdev->bus == fw_dev->bus) {
-			if (ricoh_mmc_disable(fw_dev) != 0)
-				return -ENODEV;
-
-			pci_set_drvdata(pdev, fw_dev);
-
-			++ctrlfound;
-			break;
-		}
-	}
-
-	fw_dev = NULL;
-
-	while (!ctrlfound &&
-	    (fw_dev = pci_get_device(PCI_VENDOR_ID_RICOH,
-					PCI_DEVICE_ID_RICOH_R5C832, fw_dev))) {
-		if (PCI_SLOT(pdev->devfn) == PCI_SLOT(fw_dev->devfn) &&
-		    PCI_FUNC(fw_dev->devfn) == 0 &&
-		    pdev->bus == fw_dev->bus) {
-			if (ricoh_mmc_disable(fw_dev) != 0)
-				return -ENODEV;
-
-			pci_set_drvdata(pdev, fw_dev);
-
-			++ctrlfound;
-		}
-	}
-
-	if (!ctrlfound) {
-		printk(KERN_WARNING DRIVER_NAME
-		       ": Main Ricoh function not found. Cannot disable controller.\n");
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-static void __devexit ricoh_mmc_remove(struct pci_dev *pdev)
-{
-	struct pci_dev *fw_dev = NULL;
-
-	fw_dev = pci_get_drvdata(pdev);
-	BUG_ON(fw_dev == NULL);
-
-	ricoh_mmc_enable(fw_dev);
-
-	pci_set_drvdata(pdev, NULL);
-}
-
-static int ricoh_mmc_suspend_late(struct pci_dev *pdev, pm_message_t state)
-{
-	struct pci_dev *fw_dev = NULL;
-
-	fw_dev = pci_get_drvdata(pdev);
-	BUG_ON(fw_dev == NULL);
-
-	printk(KERN_INFO DRIVER_NAME ": Suspending.\n");
-
-	ricoh_mmc_enable(fw_dev);
-
-	return 0;
-}
-
-static int ricoh_mmc_resume_early(struct pci_dev *pdev)
-{
-	struct pci_dev *fw_dev = NULL;
-
-	fw_dev = pci_get_drvdata(pdev);
-	BUG_ON(fw_dev == NULL);
-
-	printk(KERN_INFO DRIVER_NAME ": Resuming.\n");
-
-	ricoh_mmc_disable(fw_dev);
-
-	return 0;
-}
-
-static struct pci_driver ricoh_mmc_driver = {
-	.name = 	DRIVER_NAME,
-	.id_table =	pci_ids,
-	.probe = 	ricoh_mmc_probe,
-	.remove =	__devexit_p(ricoh_mmc_remove),
-	.suspend_late =	ricoh_mmc_suspend_late,
-	.resume_early =	ricoh_mmc_resume_early,
-};
-
-/*****************************************************************************\
- *                                                                           *
- * Driver init/exit                                                          *
- *                                                                           *
-\*****************************************************************************/
-
-static int __init ricoh_mmc_drv_init(void)
-{
-	printk(KERN_INFO DRIVER_NAME
-		": Ricoh MMC Controller disabling driver\n");
-	printk(KERN_INFO DRIVER_NAME ": Copyright(c) Philip Langdale\n");
-
-	return pci_register_driver(&ricoh_mmc_driver);
-}
-
-static void __exit ricoh_mmc_drv_exit(void)
-{
-	pci_unregister_driver(&ricoh_mmc_driver);
-}
-
-module_init(ricoh_mmc_drv_init);
-module_exit(ricoh_mmc_drv_exit);
-
-MODULE_AUTHOR("Philip Langdale <philipl@alumni.utexas.net>");
-MODULE_DESCRIPTION("Ricoh MMC Controller disabling driver");
-MODULE_LICENSE("GPL");
-
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index d96e1abf2d64..2fdf7689ae6c 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1179,7 +1179,7 @@ static int s3cmci_card_present(struct mmc_host *mmc)
 	struct s3c24xx_mci_pdata *pdata = host->pdata;
 	int ret;
 
-	if (pdata->gpio_detect == 0)
+	if (pdata->no_detect)
 		return -ENOSYS;
 
 	ret = gpio_get_value(pdata->gpio_detect) ? 0 : 1;
@@ -1360,6 +1360,8 @@ static struct mmc_host_ops s3cmci_ops = {
 static struct s3c24xx_mci_pdata s3cmci_def_pdata = {
 	/* This is currently here to avoid a number of if (host->pdata)
 	 * checks. Any zero fields to ensure reasonable defaults are picked. */
+	 .no_wprotect = 1,
+	 .no_detect = 1,
 };
 
 #ifdef CONFIG_CPU_FREQ
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 5c3a1767770a..6701af629c30 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -16,6 +16,7 @@
 #include <linux/highmem.h>
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
+#include <linux/slab.h>
 
 #include <linux/mmc/host.h>
 
@@ -80,9 +81,6 @@ struct sdhci_pci_chip {
 
 static int ricoh_probe(struct sdhci_pci_chip *chip)
 {
-	if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
-		chip->quirks |= SDHCI_QUIRK_CLOCK_BEFORE_RESET;
-
 	if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG ||
 	    chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY)
 		chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET;
@@ -92,7 +90,9 @@ static int ricoh_probe(struct sdhci_pci_chip *chip)
 
 static const struct sdhci_pci_fixes sdhci_ricoh = {
 	.probe		= ricoh_probe,
-	.quirks		= SDHCI_QUIRK_32BIT_DMA_ADDR,
+	.quirks		= SDHCI_QUIRK_32BIT_DMA_ADDR |
+			  SDHCI_QUIRK_FORCE_DMA |
+			  SDHCI_QUIRK_CLOCK_BEFORE_RESET,
 };
 
 static const struct sdhci_pci_fixes sdhci_ene_712 = {
@@ -501,6 +501,7 @@ static int sdhci_pci_suspend (struct pci_dev *pdev, pm_message_t state)
 {
 	struct sdhci_pci_chip *chip;
 	struct sdhci_pci_slot *slot;
+	mmc_pm_flag_t pm_flags = 0;
 	int i, ret;
 
 	chip = pci_get_drvdata(pdev);
@@ -519,6 +520,8 @@ static int sdhci_pci_suspend (struct pci_dev *pdev, pm_message_t state)
 				sdhci_resume_host(chip->slots[i]->host);
 			return ret;
 		}
+
+		pm_flags |= slot->host->mmc->pm_flags;
 	}
 
 	if (chip->fixes && chip->fixes->suspend) {
@@ -531,9 +534,15 @@ static int sdhci_pci_suspend (struct pci_dev *pdev, pm_message_t state)
 	}
 
 	pci_save_state(pdev);
-	pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
-	pci_disable_device(pdev);
-	pci_set_power_state(pdev, pci_choose_state(pdev, state));
+	if (pm_flags & MMC_PM_KEEP_POWER) {
+		if (pm_flags & MMC_PM_WAKE_SDIO_IRQ)
+			pci_enable_wake(pdev, PCI_D3hot, 1);
+		pci_set_power_state(pdev, PCI_D3hot);
+	} else {
+		pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
+		pci_disable_device(pdev);
+		pci_set_power_state(pdev, pci_choose_state(pdev, state));
+	}
 
 	return 0;
 }
@@ -653,6 +662,8 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
 			goto unmap;
 	}
 
+	host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ;
+
 	ret = sdhci_add_host(host);
 	if (ret)
 		goto remove;
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 50997d2a63e7..2136794c0cfa 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -15,6 +15,7 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <linux/clk.h>
 #include <linux/io.h>
 
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index c279fbc4c2e5..9d4fdfa685e5 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -17,6 +17,7 @@
 #include <linux/highmem.h>
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
+#include <linux/slab.h>
 #include <linux/scatterlist.h>
 
 #include <linux/leds.h>
@@ -174,20 +175,31 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask)
 		sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, ier);
 }
 
-static void sdhci_init(struct sdhci_host *host)
+static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
+
+static void sdhci_init(struct sdhci_host *host, int soft)
 {
-	sdhci_reset(host, SDHCI_RESET_ALL);
+	if (soft)
+		sdhci_reset(host, SDHCI_RESET_CMD|SDHCI_RESET_DATA);
+	else
+		sdhci_reset(host, SDHCI_RESET_ALL);
 
 	sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK,
 		SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT |
 		SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_INDEX |
 		SDHCI_INT_END_BIT | SDHCI_INT_CRC | SDHCI_INT_TIMEOUT |
 		SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE);
+
+	if (soft) {
+		/* force clock reconfiguration */
+		host->clock = 0;
+		sdhci_set_ios(host->mmc, &host->mmc->ios);
+	}
 }
 
 static void sdhci_reinit(struct sdhci_host *host)
 {
-	sdhci_init(host);
+	sdhci_init(host, 0);
 	sdhci_enable_card_detection(host);
 }
 
@@ -376,6 +388,20 @@ static void sdhci_kunmap_atomic(void *buffer, unsigned long *flags)
 	local_irq_restore(*flags);
 }
 
+static void sdhci_set_adma_desc(u8 *desc, u32 addr, int len, unsigned cmd)
+{
+	__le32 *dataddr = (__le32 __force *)(desc + 4);
+	__le16 *cmdlen = (__le16 __force *)desc;
+
+	/* SDHCI specification says ADMA descriptors should be 4 byte
+	 * aligned, so using 16 or 32bit operations should be safe. */
+
+	cmdlen[0] = cpu_to_le16(cmd);
+	cmdlen[1] = cpu_to_le16(len);
+
+	dataddr[0] = cpu_to_le32(addr);
+}
+
 static int sdhci_adma_table_pre(struct sdhci_host *host,
 	struct mmc_data *data)
 {
@@ -443,19 +469,11 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
 				sdhci_kunmap_atomic(buffer, &flags);
 			}
 
-			desc[7] = (align_addr >> 24) & 0xff;
-			desc[6] = (align_addr >> 16) & 0xff;
-			desc[5] = (align_addr >> 8) & 0xff;
-			desc[4] = (align_addr >> 0) & 0xff;
+			/* tran, valid */
+			sdhci_set_adma_desc(desc, align_addr, offset, 0x21);
 
 			BUG_ON(offset > 65536);
 
-			desc[3] = (offset >> 8) & 0xff;
-			desc[2] = (offset >> 0) & 0xff;
-
-			desc[1] = 0x00;
-			desc[0] = 0x21; /* tran, valid */
-
 			align += 4;
 			align_addr += 4;
 
@@ -465,19 +483,10 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
 			len -= offset;
 		}
 
-		desc[7] = (addr >> 24) & 0xff;
-		desc[6] = (addr >> 16) & 0xff;
-		desc[5] = (addr >> 8) & 0xff;
-		desc[4] = (addr >> 0) & 0xff;
-
 		BUG_ON(len > 65536);
 
-		desc[3] = (len >> 8) & 0xff;
-		desc[2] = (len >> 0) & 0xff;
-
-		desc[1] = 0x00;
-		desc[0] = 0x21; /* tran, valid */
-
+		/* tran, valid */
+		sdhci_set_adma_desc(desc, addr, len, 0x21);
 		desc += 8;
 
 		/*
@@ -490,16 +499,9 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
 	/*
 	 * Add a terminating entry.
 	 */
-	desc[7] = 0;
-	desc[6] = 0;
-	desc[5] = 0;
-	desc[4] = 0;
 
-	desc[3] = 0;
-	desc[2] = 0;
-
-	desc[1] = 0x00;
-	desc[0] = 0x03; /* nop, end, valid */
+	/* nop, end, valid */
+	sdhci_set_adma_desc(desc, 0, 0, 0x3);
 
 	/*
 	 * Resync align buffer as we might have changed it.
@@ -1610,16 +1612,13 @@ int sdhci_resume_host(struct sdhci_host *host)
 	if (ret)
 		return ret;
 
-	sdhci_init(host);
+	sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER));
 	mmiowb();
 
 	ret = mmc_resume_host(host->mmc);
-	if (ret)
-		return ret;
-
 	sdhci_enable_card_detection(host);
 
-	return 0;
+	return ret;
 }
 
 EXPORT_SYMBOL_GPL(sdhci_resume_host);
@@ -1874,7 +1873,7 @@ int sdhci_add_host(struct sdhci_host *host)
 	if (ret)
 		goto untasklet;
 
-	sdhci_init(host);
+	sdhci_init(host, 0);
 
 #ifdef CONFIG_MMC_DEBUG
 	sdhci_dumpregs(host);
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 7cccc8523747..b2b577f6afd4 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -46,7 +46,9 @@ static void tmio_mmc_set_clock(struct tmio_mmc_host *host, int new_clock)
 		clk |= 0x100;
 	}
 
-	sd_config_write8(host, CNF_SD_CLK_MODE, clk >> 22);
+	if (host->set_clk_div)
+		host->set_clk_div(host->pdev, (clk>>22) & 1);
+
 	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & 0x1ff);
 }
 
@@ -321,7 +323,7 @@ static irqreturn_t tmio_mmc_irq(int irq, void *devid)
 		if (ireg & (TMIO_STAT_CARD_INSERT | TMIO_STAT_CARD_REMOVE)) {
 			ack_mmc_irqs(host, TMIO_STAT_CARD_INSERT |
 				TMIO_STAT_CARD_REMOVE);
-			mmc_detect_change(host->mmc, 0);
+			mmc_detect_change(host->mmc, msecs_to_jiffies(100));
 		}
 
 		/* CRC and other errors */
@@ -427,12 +429,13 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	/* Power sequence - OFF -> ON -> UP */
 	switch (ios->power_mode) {
 	case MMC_POWER_OFF: /* power down SD bus */
-		sd_config_write8(host, CNF_PWR_CTL_2, 0x00);
+		if (host->set_pwr)
+			host->set_pwr(host->pdev, 0);
 		tmio_mmc_clk_stop(host);
 		break;
 	case MMC_POWER_ON: /* power up SD bus */
-
-		sd_config_write8(host, CNF_PWR_CTL_2, 0x02);
+		if (host->set_pwr)
+			host->set_pwr(host->pdev, 1);
 		break;
 	case MMC_POWER_UP: /* start bus clock */
 		tmio_mmc_clk_start(host);
@@ -485,21 +488,15 @@ static int tmio_mmc_resume(struct platform_device *dev)
 {
 	struct mfd_cell	*cell = (struct mfd_cell *)dev->dev.platform_data;
 	struct mmc_host *mmc = platform_get_drvdata(dev);
-	struct tmio_mmc_host *host = mmc_priv(mmc);
 	int ret = 0;
 
 	/* Tell the MFD core we are ready to be enabled */
-	if (cell->enable) {
-		ret = cell->enable(dev);
+	if (cell->resume) {
+		ret = cell->resume(dev);
 		if (ret)
 			goto out;
 	}
 
-	/* Enable the MMC/SD Control registers */
-	sd_config_write16(host, CNF_CMD, SDCREN);
-	sd_config_write32(host, CNF_CTL_BASE,
-		(dev->resource[0].start >> host->bus_shift) & 0xfffe);
-
 	mmc_resume_host(mmc);
 
 out:
@@ -514,17 +511,16 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev)
 {
 	struct mfd_cell	*cell = (struct mfd_cell *)dev->dev.platform_data;
 	struct tmio_mmc_data *pdata;
-	struct resource *res_ctl, *res_cnf;
+	struct resource *res_ctl;
 	struct tmio_mmc_host *host;
 	struct mmc_host *mmc;
 	int ret = -EINVAL;
 
-	if (dev->num_resources != 3)
+	if (dev->num_resources != 2)
 		goto out;
 
 	res_ctl = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	res_cnf = platform_get_resource(dev, IORESOURCE_MEM, 1);
-	if (!res_ctl || !res_cnf)
+	if (!res_ctl)
 		goto out;
 
 	pdata = cell->driver_data;
@@ -539,8 +535,12 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev)
 
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
+	host->pdev = dev;
 	platform_set_drvdata(dev, mmc);
 
+	host->set_pwr = pdata->set_pwr;
+	host->set_clk_div = pdata->set_clk_div;
+
 	/* SD control register space size is 0x200, 0x400 for bus_shift=1 */
 	host->bus_shift = resource_size(res_ctl) >> 10;
 
@@ -548,12 +548,9 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev)
 	if (!host->ctl)
 		goto host_free;
 
-	host->cnf = ioremap(res_cnf->start, resource_size(res_cnf));
-	if (!host->cnf)
-		goto unmap_ctl;
-
 	mmc->ops = &tmio_mmc_ops;
 	mmc->caps = MMC_CAP_4_BIT_DATA;
+	mmc->caps |= pdata->capabilities;
 	mmc->f_max = pdata->hclk;
 	mmc->f_min = mmc->f_max / 512;
 	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
@@ -562,23 +559,9 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev)
 	if (cell->enable) {
 		ret = cell->enable(dev);
 		if (ret)
-			goto unmap_cnf;
+			goto unmap_ctl;
 	}
 
-	/* Enable the MMC/SD Control registers */
-	sd_config_write16(host, CNF_CMD, SDCREN);
-	sd_config_write32(host, CNF_CTL_BASE,
-		(dev->resource[0].start >> host->bus_shift) & 0xfffe);
-
-	/* Disable SD power during suspend */
-	sd_config_write8(host, CNF_PWR_CTL_3, 0x01);
-
-	/* The below is required but why? FIXME */
-	sd_config_write8(host, CNF_STOP_CLK_CTL, 0x1f);
-
-	/* Power down SD bus*/
-	sd_config_write8(host, CNF_PWR_CTL_2, 0x00);
-
 	tmio_mmc_clk_stop(host);
 	reset(host);
 
@@ -586,14 +569,14 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev)
 	if (ret >= 0)
 		host->irq = ret;
 	else
-		goto unmap_cnf;
+		goto cell_disable;
 
 	disable_mmc_irqs(host, TMIO_MASK_ALL);
 
 	ret = request_irq(host->irq, tmio_mmc_irq, IRQF_DISABLED |
 		IRQF_TRIGGER_FALLING, dev_name(&dev->dev), host);
 	if (ret)
-		goto unmap_cnf;
+		goto cell_disable;
 
 	mmc_add_host(mmc);
 
@@ -605,8 +588,9 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev)
 
 	return 0;
 
-unmap_cnf:
-	iounmap(host->cnf);
+cell_disable:
+	if (cell->disable)
+		cell->disable(dev);
 unmap_ctl:
 	iounmap(host->ctl);
 host_free:
@@ -617,6 +601,7 @@ out:
 
 static int __devexit tmio_mmc_remove(struct platform_device *dev)
 {
+	struct mfd_cell	*cell = (struct mfd_cell *)dev->dev.platform_data;
 	struct mmc_host *mmc = platform_get_drvdata(dev);
 
 	platform_set_drvdata(dev, NULL);
@@ -625,8 +610,9 @@ static int __devexit tmio_mmc_remove(struct platform_device *dev)
 		struct tmio_mmc_host *host = mmc_priv(mmc);
 		mmc_remove_host(mmc);
 		free_irq(host->irq, host);
+		if (cell->disable)
+			cell->disable(dev);
 		iounmap(host->ctl);
-		iounmap(host->cnf);
 		mmc_free_host(mmc);
 	}
 
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 9fa998594974..dafecfbcd91a 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -11,26 +11,6 @@
 
 #include <linux/highmem.h>
 
-#define CNF_CMD     0x04
-#define CNF_CTL_BASE   0x10
-#define CNF_INT_PIN  0x3d
-#define CNF_STOP_CLK_CTL 0x40
-#define CNF_GCLK_CTL 0x41
-#define CNF_SD_CLK_MODE 0x42
-#define CNF_PIN_STATUS 0x44
-#define CNF_PWR_CTL_1 0x48
-#define CNF_PWR_CTL_2 0x49
-#define CNF_PWR_CTL_3 0x4a
-#define CNF_CARD_DETECT_MODE 0x4c
-#define CNF_SD_SLOT 0x50
-#define CNF_EXT_GCLK_CTL_1 0xf0
-#define CNF_EXT_GCLK_CTL_2 0xf1
-#define CNF_EXT_GCLK_CTL_3 0xf9
-#define CNF_SD_LED_EN_1 0xfa
-#define CNF_SD_LED_EN_2 0xfe
-
-#define   SDCREN 0x2   /* Enable access to MMC CTL regs. (flag in COMMAND_REG)*/
-
 #define CTL_SD_CMD 0x00
 #define CTL_ARG_REG 0x04
 #define CTL_STOP_INTERNAL_ACTION 0x08
@@ -75,10 +55,8 @@
 /* Define some IRQ masks */
 /* This is the mask used at reset by the chip */
 #define TMIO_MASK_ALL           0x837f031d
-#define TMIO_MASK_READOP  (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND | \
-		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
-#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND | \
-		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
+#define TMIO_MASK_READOP  (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND)
+#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND)
 #define TMIO_MASK_CMD     (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
 		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
 #define TMIO_MASK_IRQ     (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
@@ -110,7 +88,6 @@
 
 
 struct tmio_mmc_host {
-	void __iomem *cnf;
 	void __iomem *ctl;
 	unsigned long bus_shift;
 	struct mmc_command      *cmd;
@@ -119,10 +96,16 @@ struct tmio_mmc_host {
 	struct mmc_host         *mmc;
 	int                     irq;
 
+	/* Callbacks for clock / power control */
+	void (*set_pwr)(struct platform_device *host, int state);
+	void (*set_clk_div)(struct platform_device *host, int state);
+
 	/* pio related stuff */
 	struct scatterlist      *sg_ptr;
 	unsigned int            sg_len;
 	unsigned int            sg_off;
+
+	struct platform_device *pdev;
 };
 
 #include <linux/io.h>
@@ -163,25 +146,6 @@ static inline void sd_ctrl_write32(struct tmio_mmc_host *host, int addr,
 	writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));
 }
 
-static inline void sd_config_write8(struct tmio_mmc_host *host, int addr,
-		u8 val)
-{
-	writeb(val, host->cnf + (addr << host->bus_shift));
-}
-
-static inline void sd_config_write16(struct tmio_mmc_host *host, int addr,
-		u16 val)
-{
-	writew(val, host->cnf + (addr << host->bus_shift));
-}
-
-static inline void sd_config_write32(struct tmio_mmc_host *host, int addr,
-		u32 val)
-{
-	writew(val, host->cnf + (addr << host->bus_shift));
-	writew(val >> 16, host->cnf + ((addr + 2) << host->bus_shift));
-}
-
 #include <linux/scatterlist.h>
 #include <linux/blkdev.h>
 
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 89bf8cd25cac..69efe01eece8 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -34,6 +34,7 @@
 #include <linux/highmem.h>
 #include <linux/mmc/host.h>
 #include <linux/scatterlist.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <asm/dma.h>