68 files changed, 2152 insertions, 1180 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.txt
new file mode 100644
index 000000000000..0cb827bf9435
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.txt
@@ -0,0 +1,25 @@
+* The simple eMMC hardware reset provider
+The purpose of this driver is to perform standard eMMC hw reset
+procedure, as descibed by Jedec 4.4 specification. This procedure is
+performed just after MMC core enabled power to the given mmc host (to
+fix possible issues if bootloader has left eMMC card in initialized or
+unknown state), and before performing complete system reboot (also in
+case of emergency reboot call). The latter is needed on boards, which
+doesn't have hardware reset logic connected to emmc card and (limited or
+broken) ROM bootloaders are unable to read second stage from the emmc
+card if the card is left in unknown or already initialized state.
+Required properties:
+- compatible : contains "mmc-pwrseq-emmc".
+- reset-gpios : contains a GPIO specifier. The reset GPIO is asserted
+        and then deasserted to perform eMMC card reset. To perform
+        reset procedure as described in Jedec 4.4 specification, the
+        gpio line should be defined as GPIO_ACTIVE_LOW.
+Example:
+        sdhci0_pwrseq {
+                compatible = "mmc-pwrseq-emmc";
+                reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+        }
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
new file mode 100644
index 000000000000..a462c50f19a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
@@ -0,0 +1,25 @@
+* The simple MMC power sequence provider
+The purpose of the simple MMC power sequence provider is to supports a set of
+common properties between various SOC designs. It thus enables us to use the
+same provider for several SOC designs.
+Required properties:
+- compatible : contains "mmc-pwrseq-simple".
+Optional properties:
+- reset-gpios : contains a list of GPIO specifiers. The reset GPIOs are asserted
+        at initialization and prior we start the power up procedure of the card.
+        They will be de-asserted right after the power has been provided to the
+        card.
+- clocks : Must contain an entry for the entry in clock-names.
+  See ../clocks/clock-bindings.txt for details.
+- clock-names : Must include the following entry:
+  "ext_clock" (External clock provided to the card).
+Example:
+        sdhci0_pwrseq {
+                compatible = "mmc-pwrseq-simple";
+                reset-gpios = <&gpio1 12 0>;
+        }
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index b52628b18a53..438899e8829b 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -64,7 +64,43 @@ Optional SDIO properties:
 - keep-power-in-suspend: Preserves card power during a suspend/resume cycle
 - enable-sdio-wakeup: Enables wake up of host system on SDIO IRQ assertion
-Example:
+MMC power sequences:
+--------------------
+System on chip designs may specify a specific MMC power sequence. To
+successfully detect an (e)MMC/SD/SDIO card, that power sequence must be
+maintained while initializing the card.
+Optional property:
+- mmc-pwrseq: phandle to the MMC power sequence node. See "mmc-pwrseq-*"
+        for documentation of MMC power sequence bindings.
+Use of Function subnodes
+------------------------
+On embedded systems the cards connected to a host may need additional
+properties. These can be specified in subnodes to the host controller node.
+The subnodes are identified by the standard 'reg' property.
+Which information exactly can be specified depends on the bindings for the
+SDIO function driver for the subnode, as specified by the compatible string.
+Required host node properties when using function subnodes:
+- #address-cells: should be one. The cell is the slot id.
+- #size-cells: should be zero.
+Required function subnode properties:
+- compatible: name of SDIO function following generic names recommended practice
+- reg: Must contain the SDIO function number of the function this subnode
+       describes. A value of 0 denotes the memory SD function, values from
+       1 to 7 denote the SDIO functions.
+Examples
+--------
+Basic example:
 sdhci@ab000000 {
        compatible = "sdhci";
@@ -77,4 +113,28 @@ sdhci@ab000000 {
        max-frequency = <50000000>;
        keep-power-in-suspend;
        enable-sdio-wakeup;
+        mmc-pwrseq = <&sdhci0_pwrseq>
 }
+Example with sdio function subnode:
+mmc3: mmc@01c12000 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&mmc3_pins_a>;
+        vmmc-supply = <&reg_vmmc3>;
+        bus-width = <4>;
+        non-removable;
+        mmc-pwrseq = <&sdhci0_pwrseq>
+        status = "okay";
+        brcmf: bcrmf@1 {
+                reg = <1>;
+                compatible = "brcm,bcm43xx-fmac";
+                interrupt-parent = <&pio>;
+                interrupts = <10 8>; /* PH10 / EINT10 */
+                interrupt-names = "host-wake";
+        };
+};
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt b/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt
new file mode 100644
index 000000000000..de2c53cff4f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt
@@ -0,0 +1,30 @@
+* Fujitsu SDHCI controller
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci_f_sdh30 driver.
+Required properties:
+- compatible: "fujitsu,mb86s70-sdhci-3.0"
+- clocks: Must contain an entry for each entry in clock-names. It is a
+  list of phandles and clock-specifier pairs.
+  See ../clocks/clock-bindings.txt for details.
+- clock-names: Should contain the following two entries:
+        "iface" - clock used for sdhci interface
+        "core"  - core clock for sdhci controller
+Optional properties:
+- vqmmc-supply: phandle to the regulator device tree node, mentioned
+  as the VCCQ/VDD_IO supply in the eMMC/SD specs.
+Example:
+        sdhci1: mmc@36600000 {
+                compatible = "fujitsu,mb86s70-sdhci-3.0";
+                reg = <0 0x36600000 0x1000>;
+                interrupts = <0 172 0x4>,
+                             <0 173 0x4>;
+                bus-width = <4>;
+                vqmmc-supply = <&vccq_sdhci1>;
+                clocks = <&clock 2 2 0>, <&clock 2 3 0>;
+                clock-names = "iface", "core";
+        };
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt b/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
index 4dd6deb90719..3d1b449d6097 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
@@ -9,9 +9,13 @@ Required properties:
 - reg:
  * for "mrvl,pxav2-mmc" and "mrvl,pxav3-mmc", one register area for
    the SDHCI registers.
-  * for "marvell,armada-380-sdhci", two register areas. The first one
-    for the SDHCI registers themselves, and the second one for the
+  * for "marvell,armada-380-sdhci", three register areas. The first
-    AXI/Mbus bridge registers of the SDHCI unit.
+    one for the SDHCI registers themselves, the second one for the
+    AXI/Mbus bridge registers of the SDHCI unit, the third one for the
+    SDIO3 Configuration register
+- reg names: should be "sdhci", "mbus", "conf-sdio3". only mandatory
+  for "marvell,armada-380-sdhci"
 - clocks: Array of clocks required for SDHCI; requires at least one for
    I/O clock.
 - clock-names: Array of names corresponding to clocks property; shall be
@@ -35,7 +39,10 @@ sdhci@d4280800 {
 sdhci@d8000 {
        compatible = "marvell,armada-380-sdhci";
-        reg = <0xd8000 0x1000>, <0xdc000 0x100>;
+        reg-names = "sdhci", "mbus", "conf-sdio3";
+        reg = <0xd8000 0x1000>,
+                <0xdc000 0x100>;
+                <0x18454 0x4>;
        interrupts = <0 25 0x4>;
        clocks = <&gateclk 17>;
        clock-names = "io";
diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c
index 7f1708738c30..969e1003dd92 100644
--- a/arch/arm/mach-omap2/board-omap3pandora.c
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
@@ -254,12 +254,14 @@ static void pandora_wl1251_init_card(struct mmc_card *card)
         * We have TI wl1251 attached to MMC3. Pass this information to
         * SDIO core because it can't be probed by normal methods.
         */
-        card->quirks |= MMC_QUIRK_NONSTD_SDIO;
+        if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) {
-        card->cccr.wide_bus = 1;
+                card->quirks |= MMC_QUIRK_NONSTD_SDIO;
-        card->cis.vendor = 0x104c;
+                card->cccr.wide_bus = 1;
-        card->cis.device = 0x9066;
+                card->cis.vendor = 0x104c;
-        card->cis.blksize = 512;
+                card->cis.device = 0x9066;
-        card->cis.max_dtr = 20000000;
+                card->cis.blksize = 512;
+                card->cis.max_dtr = 20000000;
+        }
 }
 static struct omap2_hsmmc_info omap3pandora_mmc[] = {
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 4409d79ed650..c69afb5e264e 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2147,7 +2147,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
         */
        snprintf(md->disk->disk_name, sizeof(md->disk->disk_name),
-                 "mmcblk%d%s", md->name_idx, subname ? subname : "");
+                 "mmcblk%u%s", md->name_idx, subname ? subname : "");
        if (mmc_card_mmc(card))
                blk_queue_logical_block_size(md->queue.queue,
@@ -2193,7 +2193,6 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
 static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
 {
        sector_t size;
-        struct mmc_blk_data *md;
        if (!mmc_card_sd(card) && mmc_card_blockaddr(card)) {
                /*
@@ -2209,9 +2208,8 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
                size = card->csd.capacity << (card->csd.read_blkbits - 9);
        }
-        md = mmc_blk_alloc_req(card, &card->dev, size, false, NULL,
+        return mmc_blk_alloc_req(card, &card->dev, size, false, NULL,
                                        MMC_BLK_DATA_AREA_MAIN);
-        return md;
 }
 static int mmc_blk_alloc_part(struct mmc_card *card,
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 0a7430f94d29..7dac4695163b 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -2342,20 +2342,16 @@ static int mmc_test_hw_reset(struct mmc_test_card *test)
        struct mmc_host *host = card->host;
        int err;
-        err = mmc_hw_reset_check(host);
+        if (!mmc_card_mmc(card) || !mmc_can_reset(card))
+                return RESULT_UNSUP_CARD;
+        err = mmc_hw_reset(host);
        if (!err)
                return RESULT_OK;
+        else if (err == -EOPNOTSUPP)
+                return RESULT_UNSUP_HOST;
-        if (err == -ENOSYS)
+        return RESULT_FAIL;
-                return RESULT_FAIL;
-        if (err != -EOPNOTSUPP)
-                return err;
-        if (!mmc_can_reset(card))
-                return RESULT_UNSUP_CARD;
-        return RESULT_UNSUP_HOST;
 }
 static const struct mmc_test_case mmc_test_cases[] = {
diff --git a/drivers/mmc/core/Makefile b/drivers/mmc/core/Makefile
index 38ed210ce2f3..2c25138f28b7 100644
--- a/drivers/mmc/core/Makefile
+++ b/drivers/mmc/core/Makefile
@@ -8,5 +8,5 @@ mmc_core-y			:= core.o bus.o host.o \
                                   sdio.o sdio_ops.o sdio_bus.o \
                                   sdio_cis.o sdio_io.o sdio_irq.o \
                                   quirks.o slot-gpio.o
+mmc_core-$(CONFIG_OF)           += pwrseq.o pwrseq_simple.o pwrseq_emmc.o
 mmc_core-$(CONFIG_DEBUG_FS)     += debugfs.o
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 86d271148528..c5ef10065a4a 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
+#include <linux/of.h>
 #include <linux/pm_runtime.h>
 #include <linux/mmc/card.h>
@@ -321,6 +322,8 @@ int mmc_add_card(struct mmc_card *card)
 #endif
        mmc_init_context_info(card->host);
+        card->dev.of_node = mmc_of_find_child_device(card->host, 0);
        ret = device_add(&card->dev);
        if (ret)
                return ret;
@@ -349,6 +352,7 @@ void mmc_remove_card(struct mmc_card *card)
                                mmc_hostname(card->host), card->rca);
                }
                device_del(&card->dev);
+                of_node_put(card->dev.of_node);
        }
        put_device(&card->dev);
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 9584bffa8b22..23f10f72e5f3 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -40,6 +40,7 @@
 #include "bus.h"
 #include "host.h"
 #include "sdio_bus.h"
+#include "pwrseq.h"
 #include "mmc_ops.h"
 #include "sd_ops.h"
@@ -185,13 +186,14 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
 EXPORT_SYMBOL(mmc_request_done);
-static void
+static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
-mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
 {
 #ifdef CONFIG_MMC_DEBUG
        unsigned int i, sz;
        struct scatterlist *sg;
 #endif
+        if (mmc_card_removed(host->card))
+                return -ENOMEDIUM;
        if (mrq->sbc) {
                pr_debug("<%s: starting CMD%u arg %08x flags %08x>\n",
@@ -251,6 +253,8 @@ mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
        mmc_host_clk_hold(host);
        led_trigger_event(host->led, LED_FULL);
        host->ops->request(host, mrq);
+        return 0;
 }
 /**
@@ -271,7 +275,7 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
        BUG_ON(!card);
-        if (!card->ext_csd.bkops_en || mmc_card_doing_bkops(card))
+        if (!card->ext_csd.man_bkops_en || mmc_card_doing_bkops(card))
                return;
        err = mmc_read_bkops_status(card);
@@ -345,29 +349,34 @@ static void mmc_wait_done(struct mmc_request *mrq)
 */
 static int __mmc_start_data_req(struct mmc_host *host, struct mmc_request *mrq)
 {
+        int err;
        mrq->done = mmc_wait_data_done;
        mrq->host = host;
-        if (mmc_card_removed(host->card)) {
-                mrq->cmd->error = -ENOMEDIUM;
+        err = mmc_start_request(host, mrq);
+        if (err) {
+                mrq->cmd->error = err;
                mmc_wait_data_done(mrq);
-                return -ENOMEDIUM;
        }
-        mmc_start_request(host, mrq);
-        return 0;
+        return err;
 }
 static int __mmc_start_req(struct mmc_host *host, struct mmc_request *mrq)
 {
+        int err;
        init_completion(&mrq->completion);
        mrq->done = mmc_wait_done;
-        if (mmc_card_removed(host->card)) {
-                mrq->cmd->error = -ENOMEDIUM;
+        err = mmc_start_request(host, mrq);
+        if (err) {
+                mrq->cmd->error = err;
                complete(&mrq->completion);
-                return -ENOMEDIUM;
        }
-        mmc_start_request(host, mrq);
-        return 0;
+        return err;
 }
 /*
@@ -1077,6 +1086,30 @@ void mmc_set_ungated(struct mmc_host *host)
 }
 #endif
+int mmc_execute_tuning(struct mmc_card *card)
+{
+        struct mmc_host *host = card->host;
+        u32 opcode;
+        int err;
+        if (!host->ops->execute_tuning)
+                return 0;
+        if (mmc_card_mmc(card))
+                opcode = MMC_SEND_TUNING_BLOCK_HS200;
+        else
+                opcode = MMC_SEND_TUNING_BLOCK;
+        mmc_host_clk_hold(host);
+        err = host->ops->execute_tuning(host, opcode);
+        mmc_host_clk_release(host);
+        if (err)
+                pr_err("%s: tuning execution failed\n", mmc_hostname(host));
+        return err;
+}
 /*
 * Change the bus mode (open drain/push-pull) of a host.
 */
@@ -1232,6 +1265,34 @@ EXPORT_SYMBOL(mmc_of_parse_voltage);
 #endif /* CONFIG_OF */
+static int mmc_of_get_func_num(struct device_node *node)
+{
+        u32 reg;
+        int ret;
+        ret = of_property_read_u32(node, "reg", &reg);
+        if (ret < 0)
+                return ret;
+        return reg;
+}
+struct device_node *mmc_of_find_child_device(struct mmc_host *host,
+                unsigned func_num)
+{
+        struct device_node *node;
+        if (!host->parent || !host->parent->of_node)
+                return NULL;
+        for_each_child_of_node(host->parent->of_node, node) {
+                if (mmc_of_get_func_num(node) == func_num)
+                        return node;
+        }
+        return NULL;
+}
 #ifdef CONFIG_REGULATOR
 /**
@@ -1555,6 +1616,8 @@ void mmc_power_up(struct mmc_host *host, u32 ocr)
        mmc_host_clk_hold(host);
+        mmc_pwrseq_pre_power_on(host);
        host->ios.vdd = fls(ocr) - 1;
        host->ios.power_mode = MMC_POWER_UP;
        /* Set initial state and call mmc_set_ios */
@@ -1574,6 +1637,8 @@ void mmc_power_up(struct mmc_host *host, u32 ocr)
         */
        mmc_delay(10);
+        mmc_pwrseq_post_power_on(host);
        host->ios.clock = host->f_init;
        host->ios.power_mode = MMC_POWER_ON;
@@ -1595,6 +1660,8 @@ void mmc_power_off(struct mmc_host *host)
        mmc_host_clk_hold(host);
+        mmc_pwrseq_power_off(host);
        host->ios.clock = 0;
        host->ios.vdd = 0;
@@ -2245,67 +2312,28 @@ static void mmc_hw_reset_for_init(struct mmc_host *host)
        mmc_host_clk_release(host);
 }
-int mmc_can_reset(struct mmc_card *card)
+int mmc_hw_reset(struct mmc_host *host)
-{
-        u8 rst_n_function;
-        if (!mmc_card_mmc(card))
-                return 0;
-        rst_n_function = card->ext_csd.rst_n_function;
-        if ((rst_n_function & EXT_CSD_RST_N_EN_MASK) != EXT_CSD_RST_N_ENABLED)
-                return 0;
-        return 1;
-}
-EXPORT_SYMBOL(mmc_can_reset);
-static int mmc_do_hw_reset(struct mmc_host *host, int check)
 {
-        struct mmc_card *card = host->card;
+        int ret;
-        if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
-                return -EOPNOTSUPP;
-        if (!card)
+        if (!host->card)
                return -EINVAL;
-        if (!mmc_can_reset(card))
+        mmc_bus_get(host);
+        if (!host->bus_ops || host->bus_dead || !host->bus_ops->reset) {
+                mmc_bus_put(host);
                return -EOPNOTSUPP;
-        mmc_host_clk_hold(host);
-        mmc_set_clock(host, host->f_init);
-        host->ops->hw_reset(host);
-        /* If the reset has happened, then a status command will fail */
-        if (check) {
-                u32 status;
-                if (!mmc_send_status(card, &status)) {
-                        mmc_host_clk_release(host);
-                        return -ENOSYS;
-                }
        }
-        /* Set initial state and call mmc_set_ios */
+        ret = host->bus_ops->reset(host);
-        mmc_set_initial_state(host);
+        mmc_bus_put(host);
-        mmc_host_clk_release(host);
+        pr_warn("%s: tried to reset card\n", mmc_hostname(host));
-        return host->bus_ops->power_restore(host);
+        return ret;
-}
-int mmc_hw_reset(struct mmc_host *host)
-{
-        return mmc_do_hw_reset(host, 0);
 }
 EXPORT_SYMBOL(mmc_hw_reset);
-int mmc_hw_reset_check(struct mmc_host *host)
-{
-        return mmc_do_hw_reset(host, 1);
-}
-EXPORT_SYMBOL(mmc_hw_reset_check);
 static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
 {
        host->f_init = freq;
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index d76597c65e3a..cfba3c05aab1 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -27,11 +27,15 @@ struct mmc_bus_ops {
        int (*power_restore)(struct mmc_host *);
        int (*alive)(struct mmc_host *);
        int (*shutdown)(struct mmc_host *);
+        int (*reset)(struct mmc_host *);
 };
 void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
 void mmc_detach_bus(struct mmc_host *host);
+struct device_node *mmc_of_find_child_device(struct mmc_host *host,
+                unsigned func_num);
 void mmc_init_erase(struct mmc_card *card);
 void mmc_set_chip_select(struct mmc_host *host, int mode);
@@ -82,5 +86,8 @@ void mmc_add_card_debugfs(struct mmc_card *card);
 void mmc_remove_card_debugfs(struct mmc_card *card);
 void mmc_init_context_info(struct mmc_host *host);
+int mmc_execute_tuning(struct mmc_card *card);
 #endif
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 270d58a4c43d..8be0df758e68 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -29,13 +29,20 @@
 #include "core.h"
 #include "host.h"
+#include "slot-gpio.h"
+#include "pwrseq.h"
 #define cls_dev_to_mmc_host(d)  container_of(d, struct mmc_host, class_dev)
+static DEFINE_IDR(mmc_host_idr);
+static DEFINE_SPINLOCK(mmc_host_lock);
 static void mmc_host_classdev_release(struct device *dev)
 {
        struct mmc_host *host = cls_dev_to_mmc_host(dev);
-        mutex_destroy(&host->slot.lock);
+        spin_lock(&mmc_host_lock);
+        idr_remove(&mmc_host_idr, host->index);
+        spin_unlock(&mmc_host_lock);
        kfree(host);
 }
@@ -54,9 +61,6 @@ void mmc_unregister_host_class(void)
        class_unregister(&mmc_host_class);
 }
-static DEFINE_IDR(mmc_host_idr);
-static DEFINE_SPINLOCK(mmc_host_lock);
 #ifdef CONFIG_MMC_CLKGATE
 static ssize_t clkgate_delay_show(struct device *dev,
                struct device_attribute *attr, char *buf)
@@ -367,16 +371,10 @@ int mmc_of_parse(struct mmc_host *host)
                ret = mmc_gpiod_request_cd(host, "cd", 0, true,
                                           0, &cd_gpio_invert);
-                if (ret) {
+                if (!ret)
-                        if (ret == -EPROBE_DEFER)
-                                return ret;
-                        if (ret != -ENOENT) {
-                                dev_err(host->parent,
-                                        "Failed to request CD GPIO: %d\n",
-                                        ret);
-                        }
-                } else
                        dev_info(host->parent, "Got CD GPIO\n");
+                else if (ret != -ENOENT)
+                        return ret;
                /*
                 * There are two ways to flag that the CD line is inverted:
@@ -397,16 +395,10 @@ int mmc_of_parse(struct mmc_host *host)
        ro_cap_invert = of_property_read_bool(np, "wp-inverted");
        ret = mmc_gpiod_request_ro(host, "wp", 0, false, 0, &ro_gpio_invert);
-        if (ret) {
+        if (!ret)
-                if (ret == -EPROBE_DEFER)
-                        goto out;
-                if (ret != -ENOENT) {
-                        dev_err(host->parent,
-                                "Failed to request WP GPIO: %d\n",
-                                ret);
-                }
-        } else
                dev_info(host->parent, "Got WP GPIO\n");
+        else if (ret != -ENOENT)
+                return ret;
        /* See the comment on CD inversion above */
        if (ro_cap_invert ^ ro_gpio_invert)
@@ -457,11 +449,7 @@ int mmc_of_parse(struct mmc_host *host)
                host->dsr_req = 0;
        }
-        return 0;
+        return mmc_pwrseq_alloc(host);
-out:
-        mmc_gpio_free_cd(host);
-        return ret;
 }
 EXPORT_SYMBOL(mmc_of_parse);
@@ -491,8 +479,10 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
                host->index = err;
        spin_unlock(&mmc_host_lock);
        idr_preload_end();
-        if (err < 0)
+        if (err < 0) {
-                goto free;
+                kfree(host);
+                return NULL;
+        }
        dev_set_name(&host->class_dev, "mmc%d", host->index);
@@ -501,10 +491,12 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
        host->class_dev.class = &mmc_host_class;
        device_initialize(&host->class_dev);
-        mmc_host_clk_init(host);
+        if (mmc_gpio_alloc(host)) {
+                put_device(&host->class_dev);
+                return NULL;
+        }
-        mutex_init(&host->slot.lock);
+        mmc_host_clk_init(host);
-        host->slot.cd_irq = -EINVAL;
        spin_lock_init(&host->lock);
        init_waitqueue_head(&host->wq);
@@ -525,10 +517,6 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
        host->max_blk_count = PAGE_CACHE_SIZE / 512;
        return host;
-free:
-        kfree(host);
-        return NULL;
 }
 EXPORT_SYMBOL(mmc_alloc_host);
@@ -601,10 +589,7 @@ EXPORT_SYMBOL(mmc_remove_host);
 */
 void mmc_free_host(struct mmc_host *host)
 {
-        spin_lock(&mmc_host_lock);
+        mmc_pwrseq_free(host);
-        idr_remove(&mmc_host_idr, host->index);
-        spin_unlock(&mmc_host_lock);
        put_device(&host->class_dev);
 }
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 7466ce098e60..1d41e8541f38 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -483,11 +483,13 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
                /* check whether the eMMC card supports BKOPS */
                if (ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) {
                        card->ext_csd.bkops = 1;
-                        card->ext_csd.bkops_en = ext_csd[EXT_CSD_BKOPS_EN];
+                        card->ext_csd.man_bkops_en =
+                                        (ext_csd[EXT_CSD_BKOPS_EN] &
+                                                EXT_CSD_MANUAL_BKOPS_MASK);
                        card->ext_csd.raw_bkops_status =
                                ext_csd[EXT_CSD_BKOPS_STATUS];
-                        if (!card->ext_csd.bkops_en)
+                        if (!card->ext_csd.man_bkops_en)
-                                pr_info("%s: BKOPS_EN bit is not set\n",
+                                pr_info("%s: MAN_BKOPS_EN bit is not set\n",
                                        mmc_hostname(card->host));
                }
@@ -1155,38 +1157,6 @@ bus_speed:
        return err;
 }
-const u8 tuning_blk_pattern_4bit[MMC_TUNING_BLK_PATTERN_4BIT_SIZE] = {
-        0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc,
-        0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef,
-        0xff, 0xdf, 0xff, 0xdd, 0xff, 0xfb, 0xff, 0xfb,
-        0xbf, 0xff, 0x7f, 0xff, 0x77, 0xf7, 0xbd, 0xef,
-        0xff, 0xf0, 0xff, 0xf0, 0x0f, 0xfc, 0xcc, 0x3c,
-        0xcc, 0x33, 0xcc, 0xcf, 0xff, 0xef, 0xff, 0xee,
-        0xff, 0xfd, 0xff, 0xfd, 0xdf, 0xff, 0xbf, 0xff,
-        0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde,
-};
-EXPORT_SYMBOL(tuning_blk_pattern_4bit);
-const u8 tuning_blk_pattern_8bit[MMC_TUNING_BLK_PATTERN_8BIT_SIZE] = {
-        0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00,
-        0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc,
-        0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff,
-        0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff,
-        0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd,
-        0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb,
-        0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff,
-        0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff,
-        0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00,
-        0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc,
-        0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff,
-        0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee,
-        0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd,
-        0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff,
-        0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff,
-        0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
-};
-EXPORT_SYMBOL(tuning_blk_pattern_8bit);
 /*
 * Execute tuning sequence to seek the proper bus operating
 * conditions for HS200 and HS400, which sends CMD21 to the device.
@@ -1194,7 +1164,6 @@ EXPORT_SYMBOL(tuning_blk_pattern_8bit);
 static int mmc_hs200_tuning(struct mmc_card *card)
 {
        struct mmc_host *host = card->host;
-        int err = 0;
        /*
         * Timing should be adjusted to the HS400 target
@@ -1205,18 +1174,7 @@ static int mmc_hs200_tuning(struct mmc_card *card)
                if (host->ops->prepare_hs400_tuning)
                        host->ops->prepare_hs400_tuning(host, &host->ios);
-        if (host->ops->execute_tuning) {
+        return mmc_execute_tuning(card);
-                mmc_host_clk_hold(host);
-                err = host->ops->execute_tuning(host,
-                                MMC_SEND_TUNING_BLOCK_HS200);
-                mmc_host_clk_release(host);
-                if (err)
-                        pr_err("%s: tuning execution failed\n",
-                                mmc_hostname(host));
-        }
-        return err;
 }
 /*
@@ -1297,6 +1255,12 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
        }
        /*
+         * Call the optional HC's init_card function to handle quirks.
+         */
+        if (host->ops->init_card)
+                host->ops->init_card(host, card);
+        /*
         * For native busses:  set card RCA and quit open drain mode.
         */
        if (!mmc_host_is_spi(host)) {
@@ -1821,6 +1785,46 @@ static int mmc_power_restore(struct mmc_host *host)
        return ret;
 }
+int mmc_can_reset(struct mmc_card *card)
+{
+        u8 rst_n_function;
+        rst_n_function = card->ext_csd.rst_n_function;
+        if ((rst_n_function & EXT_CSD_RST_N_EN_MASK) != EXT_CSD_RST_N_ENABLED)
+                return 0;
+        return 1;
+}
+EXPORT_SYMBOL(mmc_can_reset);
+static int mmc_reset(struct mmc_host *host)
+{
+        struct mmc_card *card = host->card;
+        u32 status;
+        if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
+                return -EOPNOTSUPP;
+        if (!mmc_can_reset(card))
+                return -EOPNOTSUPP;
+        mmc_host_clk_hold(host);
+        mmc_set_clock(host, host->f_init);
+        host->ops->hw_reset(host);
+        /* If the reset has happened, then a status command will fail */
+        if (!mmc_send_status(card, &status)) {
+                mmc_host_clk_release(host);
+                return -ENOSYS;
+        }
+        /* Set initial state and call mmc_set_ios */
+        mmc_set_initial_state(host);
+        mmc_host_clk_release(host);
+        return mmc_power_restore(host);
+}
 static const struct mmc_bus_ops mmc_ops = {
        .remove = mmc_remove,
        .detect = mmc_detect,
@@ -1831,6 +1835,7 @@ static const struct mmc_bus_ops mmc_ops = {
        .power_restore = mmc_power_restore,
        .alive = mmc_alive,
        .shutdown = mmc_shutdown,
+        .reset = mmc_reset,
 };
 /*
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 3b044c5b029c..0ea042dc7443 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -23,6 +23,36 @@
 #define MMC_OPS_TIMEOUT_MS      (10 * 60 * 1000) /* 10 minute timeout */
+static const u8 tuning_blk_pattern_4bit[] = {
+        0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc,
+        0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef,
+        0xff, 0xdf, 0xff, 0xdd, 0xff, 0xfb, 0xff, 0xfb,
+        0xbf, 0xff, 0x7f, 0xff, 0x77, 0xf7, 0xbd, 0xef,
+        0xff, 0xf0, 0xff, 0xf0, 0x0f, 0xfc, 0xcc, 0x3c,
+        0xcc, 0x33, 0xcc, 0xcf, 0xff, 0xef, 0xff, 0xee,
+        0xff, 0xfd, 0xff, 0xfd, 0xdf, 0xff, 0xbf, 0xff,
+        0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde,
+};
+static const u8 tuning_blk_pattern_8bit[] = {
+        0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00,
+        0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc,
+        0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff,
+        0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff,
+        0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd,
+        0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb,
+        0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff,
+        0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff,
+        0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00,
+        0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc,
+        0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff,
+        0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee,
+        0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd,
+        0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff,
+        0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff,
+        0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
+};
 static inline int __mmc_send_status(struct mmc_card *card, u32 *status,
                                    bool ignore_crc)
 {
diff --git a/drivers/mmc/core/pwrseq.c b/drivers/mmc/core/pwrseq.c
new file mode 100644
index 000000000000..862356123d78
--- /dev/null
+++ b/drivers/mmc/core/pwrseq.c
@@ -0,0 +1,112 @@
+/*
+ *  Copyright (C) 2014 Linaro Ltd
+ *
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ *
+ *  MMC power sequence management
+ */
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/mmc/host.h>
+#include "pwrseq.h"
+struct mmc_pwrseq_match {
+        const char *compatible;
+        int (*alloc)(struct mmc_host *host, struct device *dev);
+};
+static struct mmc_pwrseq_match pwrseq_match[] = {
+        {
+                .compatible = "mmc-pwrseq-simple",
+                .alloc = mmc_pwrseq_simple_alloc,
+        }, {
+                .compatible = "mmc-pwrseq-emmc",
+                .alloc = mmc_pwrseq_emmc_alloc,
+        },
+};
+static struct mmc_pwrseq_match *mmc_pwrseq_find(struct device_node *np)
+{
+        struct mmc_pwrseq_match *match = ERR_PTR(-ENODEV);
+        int i;
+        for (i = 0; i < ARRAY_SIZE(pwrseq_match); i++) {
+                if (of_device_is_compatible(np, pwrseq_match[i].compatible)) {
+                        match = &pwrseq_match[i];
+                        break;
+                }
+        }
+        return match;
+}
+int mmc_pwrseq_alloc(struct mmc_host *host)
+{
+        struct platform_device *pdev;
+        struct device_node *np;
+        struct mmc_pwrseq_match *match;
+        int ret = 0;
+        np = of_parse_phandle(host->parent->of_node, "mmc-pwrseq", 0);
+        if (!np)
+                return 0;
+        pdev = of_find_device_by_node(np);
+        if (!pdev) {
+                ret = -ENODEV;
+                goto err;
+        }
+        match = mmc_pwrseq_find(np);
+        if (IS_ERR(match)) {
+                ret = PTR_ERR(match);
+                goto err;
+        }
+        ret = match->alloc(host, &pdev->dev);
+        if (!ret)
+                dev_info(host->parent, "allocated mmc-pwrseq\n");
+err:
+        of_node_put(np);
+        return ret;
+}
+void mmc_pwrseq_pre_power_on(struct mmc_host *host)
+{
+        struct mmc_pwrseq *pwrseq = host->pwrseq;
+        if (pwrseq && pwrseq->ops && pwrseq->ops->pre_power_on)
+                pwrseq->ops->pre_power_on(host);
+}
+void mmc_pwrseq_post_power_on(struct mmc_host *host)
+{
+        struct mmc_pwrseq *pwrseq = host->pwrseq;
+        if (pwrseq && pwrseq->ops && pwrseq->ops->post_power_on)
+                pwrseq->ops->post_power_on(host);
+}
+void mmc_pwrseq_power_off(struct mmc_host *host)
+{
+        struct mmc_pwrseq *pwrseq = host->pwrseq;
+        if (pwrseq && pwrseq->ops && pwrseq->ops->power_off)
+                pwrseq->ops->power_off(host);
+}
+void mmc_pwrseq_free(struct mmc_host *host)
+{
+        struct mmc_pwrseq *pwrseq = host->pwrseq;
+        if (pwrseq && pwrseq->ops && pwrseq->ops->free)
+                pwrseq->ops->free(host);
+}
diff --git a/drivers/mmc/core/pwrseq.h b/drivers/mmc/core/pwrseq.h
new file mode 100644
index 000000000000..aba3409e8d6e
--- /dev/null
+++ b/drivers/mmc/core/pwrseq.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2014 Linaro Ltd
+ *
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef _MMC_CORE_PWRSEQ_H
+#define _MMC_CORE_PWRSEQ_H
+struct mmc_pwrseq_ops {
+        void (*pre_power_on)(struct mmc_host *host);
+        void (*post_power_on)(struct mmc_host *host);
+        void (*power_off)(struct mmc_host *host);
+        void (*free)(struct mmc_host *host);
+};
+struct mmc_pwrseq {
+        struct mmc_pwrseq_ops *ops;
+};
+#ifdef CONFIG_OF
+int mmc_pwrseq_alloc(struct mmc_host *host);
+void mmc_pwrseq_pre_power_on(struct mmc_host *host);
+void mmc_pwrseq_post_power_on(struct mmc_host *host);
+void mmc_pwrseq_power_off(struct mmc_host *host);
+void mmc_pwrseq_free(struct mmc_host *host);
+int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev);
+int mmc_pwrseq_emmc_alloc(struct mmc_host *host, struct device *dev);
+#else
+static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }
+static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}
+static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}
+static inline void mmc_pwrseq_power_off(struct mmc_host *host) {}
+static inline void mmc_pwrseq_free(struct mmc_host *host) {}
+#endif
+#endif
diff --git a/drivers/mmc/core/pwrseq_emmc.c b/drivers/mmc/core/pwrseq_emmc.c
new file mode 100644
index 000000000000..a2d545904fbf
--- /dev/null
+++ b/drivers/mmc/core/pwrseq_emmc.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2015, Samsung Electronics Co., Ltd.
+ *
+ * Author: Marek Szyprowski <m.szyprowski@samsung.com>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ *
+ * Simple eMMC hardware reset provider
+ */
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/reboot.h>
+#include <linux/mmc/host.h>
+#include "pwrseq.h"
+struct mmc_pwrseq_emmc {
+        struct mmc_pwrseq pwrseq;
+        struct notifier_block reset_nb;
+        struct gpio_desc *reset_gpio;
+};
+static void __mmc_pwrseq_emmc_reset(struct mmc_pwrseq_emmc *pwrseq)
+{
+        gpiod_set_value(pwrseq->reset_gpio, 1);
+        udelay(1);
+        gpiod_set_value(pwrseq->reset_gpio, 0);
+        udelay(200);
+}
+static void mmc_pwrseq_emmc_reset(struct mmc_host *host)
+{
+        struct mmc_pwrseq_emmc *pwrseq = container_of(host->pwrseq,
+                                        struct mmc_pwrseq_emmc, pwrseq);
+        __mmc_pwrseq_emmc_reset(pwrseq);
+}
+static void mmc_pwrseq_emmc_free(struct mmc_host *host)
+{
+        struct mmc_pwrseq_emmc *pwrseq = container_of(host->pwrseq,
+                                        struct mmc_pwrseq_emmc, pwrseq);
+        unregister_restart_handler(&pwrseq->reset_nb);
+        gpiod_put(pwrseq->reset_gpio);
+        kfree(pwrseq);
+        host->pwrseq = NULL;
+}
+static struct mmc_pwrseq_ops mmc_pwrseq_emmc_ops = {
+        .post_power_on = mmc_pwrseq_emmc_reset,
+        .free = mmc_pwrseq_emmc_free,
+};
+static int mmc_pwrseq_emmc_reset_nb(struct notifier_block *this,
+                                    unsigned long mode, void *cmd)
+{
+        struct mmc_pwrseq_emmc *pwrseq = container_of(this,
+                                        struct mmc_pwrseq_emmc, reset_nb);
+        __mmc_pwrseq_emmc_reset(pwrseq);
+        return NOTIFY_DONE;
+}
+int mmc_pwrseq_emmc_alloc(struct mmc_host *host, struct device *dev)
+{
+        struct mmc_pwrseq_emmc *pwrseq;
+        int ret = 0;
+        pwrseq = kzalloc(sizeof(struct mmc_pwrseq_emmc), GFP_KERNEL);
+        if (!pwrseq)
+                return -ENOMEM;
+        pwrseq->reset_gpio = gpiod_get_index(dev, "reset", 0, GPIOD_OUT_LOW);
+        if (IS_ERR(pwrseq->reset_gpio)) {
+                ret = PTR_ERR(pwrseq->reset_gpio);
+                goto free;
+        }
+        /*
+         * register reset handler to ensure emmc reset also from
+         * emergency_reboot(), priority 129 schedules it just before
+         * system reboot
+         */
+        pwrseq->reset_nb.notifier_call = mmc_pwrseq_emmc_reset_nb;
+        pwrseq->reset_nb.priority = 129;
+        register_restart_handler(&pwrseq->reset_nb);
+        pwrseq->pwrseq.ops = &mmc_pwrseq_emmc_ops;
+        host->pwrseq = &pwrseq->pwrseq;
+        return 0;
+free:
+        kfree(pwrseq);
+        return ret;
+}
diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c
new file mode 100644
index 000000000000..e9f1d8d84613
--- /dev/null
+++ b/drivers/mmc/core/pwrseq_simple.c
@@ -0,0 +1,145 @@
+/*
+ *  Copyright (C) 2014 Linaro Ltd
+ *
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ *
+ *  Simple MMC power sequence management
+ */
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/mmc/host.h>
+#include "pwrseq.h"
+struct mmc_pwrseq_simple {
+        struct mmc_pwrseq pwrseq;
+        bool clk_enabled;
+        struct clk *ext_clk;
+        int nr_gpios;
+        struct gpio_desc *reset_gpios[0];
+};
+static void mmc_pwrseq_simple_set_gpios_value(struct mmc_pwrseq_simple *pwrseq,
+                                              int value)
+{
+        int i;
+        for (i = 0; i < pwrseq->nr_gpios; i++)
+                if (!IS_ERR(pwrseq->reset_gpios[i]))
+                        gpiod_set_value_cansleep(pwrseq->reset_gpios[i], value);
+}
+static void mmc_pwrseq_simple_pre_power_on(struct mmc_host *host)
+{
+        struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
+                                        struct mmc_pwrseq_simple, pwrseq);
+        if (!IS_ERR(pwrseq->ext_clk) && !pwrseq->clk_enabled) {
+                clk_prepare_enable(pwrseq->ext_clk);
+                pwrseq->clk_enabled = true;
+        }
+        mmc_pwrseq_simple_set_gpios_value(pwrseq, 1);
+}
+static void mmc_pwrseq_simple_post_power_on(struct mmc_host *host)
+{
+        struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
+                                        struct mmc_pwrseq_simple, pwrseq);
+        mmc_pwrseq_simple_set_gpios_value(pwrseq, 0);
+}
+static void mmc_pwrseq_simple_power_off(struct mmc_host *host)
+{
+        struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
+                                        struct mmc_pwrseq_simple, pwrseq);
+        mmc_pwrseq_simple_set_gpios_value(pwrseq, 1);
+        if (!IS_ERR(pwrseq->ext_clk) && pwrseq->clk_enabled) {
+                clk_disable_unprepare(pwrseq->ext_clk);
+                pwrseq->clk_enabled = false;
+        }
+}
+static void mmc_pwrseq_simple_free(struct mmc_host *host)
+{
+        struct mmc_pwrseq_simple *pwrseq = container_of(host->pwrseq,
+                                        struct mmc_pwrseq_simple, pwrseq);
+        int i;
+        for (i = 0; i < pwrseq->nr_gpios; i++)
+                if (!IS_ERR(pwrseq->reset_gpios[i]))
+                        gpiod_put(pwrseq->reset_gpios[i]);
+        if (!IS_ERR(pwrseq->ext_clk))
+                clk_put(pwrseq->ext_clk);
+        kfree(pwrseq);
+        host->pwrseq = NULL;
+}
+static struct mmc_pwrseq_ops mmc_pwrseq_simple_ops = {
+        .pre_power_on = mmc_pwrseq_simple_pre_power_on,
+        .post_power_on = mmc_pwrseq_simple_post_power_on,
+        .power_off = mmc_pwrseq_simple_power_off,
+        .free = mmc_pwrseq_simple_free,
+};
+int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev)
+{
+        struct mmc_pwrseq_simple *pwrseq;
+        int i, nr_gpios, ret = 0;
+        nr_gpios = of_gpio_named_count(dev->of_node, "reset-gpios");
+        if (nr_gpios < 0)
+                nr_gpios = 0;
+        pwrseq = kzalloc(sizeof(struct mmc_pwrseq_simple) + nr_gpios *
+                         sizeof(struct gpio_desc *), GFP_KERNEL);
+        if (!pwrseq)
+                return -ENOMEM;
+        pwrseq->ext_clk = clk_get(dev, "ext_clock");
+        if (IS_ERR(pwrseq->ext_clk) &&
+            PTR_ERR(pwrseq->ext_clk) != -ENOENT) {
+                ret = PTR_ERR(pwrseq->ext_clk);
+                goto free;
+        }
+        for (i = 0; i < nr_gpios; i++) {
+                pwrseq->reset_gpios[i] = gpiod_get_index(dev, "reset", i,
+                                                         GPIOD_OUT_HIGH);
+                if (IS_ERR(pwrseq->reset_gpios[i]) &&
+                    PTR_ERR(pwrseq->reset_gpios[i]) != -ENOENT &&
+                    PTR_ERR(pwrseq->reset_gpios[i]) != -ENOSYS) {
+                        ret = PTR_ERR(pwrseq->reset_gpios[i]);
+                        while (--i)
+                                gpiod_put(pwrseq->reset_gpios[i]);
+                        goto clk_put;
+                }
+        }
+        pwrseq->nr_gpios = nr_gpios;
+        pwrseq->pwrseq.ops = &mmc_pwrseq_simple_ops;
+        host->pwrseq = &pwrseq->pwrseq;
+        return 0;
+clk_put:
+        if (!IS_ERR(pwrseq->ext_clk))
+                clk_put(pwrseq->ext_clk);
+free:
+        kfree(pwrseq);
+        return ret;
+}
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index d90a6de7901d..ad4d43eae99d 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -660,15 +660,10 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
         * SPI mode doesn't define CMD19 and tuning is only valid for SDR50 and
         * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104.
         */
-        if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning &&
+        if (!mmc_host_is_spi(card->host) &&
-                        (card->sd_bus_speed == UHS_SDR50_BUS_SPEED ||
+            (card->sd_bus_speed == UHS_SDR50_BUS_SPEED ||
-                         card->sd_bus_speed == UHS_SDR104_BUS_SPEED)) {
+             card->sd_bus_speed == UHS_SDR104_BUS_SPEED))
-                mmc_host_clk_hold(card->host);
+                err = mmc_execute_tuning(card);
-                err = card->host->ops->execute_tuning(card->host,
-                                                      MMC_SEND_TUNING_BLOCK);
-                mmc_host_clk_release(card->host);
-        }
 out:
        kfree(status);
@@ -933,6 +928,12 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
        }
        /*
+         * Call the optional HC's init_card function to handle quirks.
+         */
+        if (host->ops->init_card)
+                host->ops->init_card(host, card);
+        /*
         * For native busses:  get card RCA and quit open drain mode.
         */
        if (!mmc_host_is_spi(host)) {
@@ -1191,6 +1192,12 @@ static int mmc_sd_power_restore(struct mmc_host *host)
        return ret;
 }
+static int mmc_sd_reset(struct mmc_host *host)
+{
+        mmc_power_cycle(host, host->card->ocr);
+        return mmc_sd_power_restore(host);
+}
 static const struct mmc_bus_ops mmc_sd_ops = {
        .remove = mmc_sd_remove,
        .detect = mmc_sd_detect,
@@ -1201,6 +1208,7 @@ static const struct mmc_bus_ops mmc_sd_ops = {
        .power_restore = mmc_sd_power_restore,
        .alive = mmc_sd_alive,
        .shutdown = mmc_sd_suspend,
+        .reset = mmc_sd_reset,
 };
 /*
@@ -1271,4 +1279,3 @@ err:
        return err;
 }
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index fd0750b5a634..ce6cc47206b0 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -567,17 +567,11 @@ static int mmc_sdio_init_uhs_card(struct mmc_card *card)
         * SPI mode doesn't define CMD19 and tuning is only valid for SDR50 and
         * SDR104 mode SD-cards. Note that tuning is mandatory for SDR104.
         */
-        if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning &&
+        if (!mmc_host_is_spi(card->host) &&
-                        ((card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR50) ||
+            ((card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR50) ||
-                         (card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR104))) {
+             (card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR104)))
-                mmc_host_clk_hold(card->host);
+                err = mmc_execute_tuning(card);
-                err = card->host->ops->execute_tuning(card->host,
-                                                      MMC_SEND_TUNING_BLOCK);
-                mmc_host_clk_release(card->host);
-        }
 out:
        return err;
 }
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index 60885316afba..bee02e644d62 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -22,7 +22,9 @@
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/sdio_func.h>
+#include <linux/of.h>
+#include "core.h"
 #include "sdio_cis.h"
 #include "sdio_bus.h"
@@ -295,6 +297,13 @@ static void sdio_acpi_set_handle(struct sdio_func *func)
 static inline void sdio_acpi_set_handle(struct sdio_func *func) {}
 #endif
+static void sdio_set_of_node(struct sdio_func *func)
+{
+        struct mmc_host *host = func->card->host;
+        func->dev.of_node = mmc_of_find_child_device(host, func->num);
+}
 /*
 * Register a new SDIO function with the driver model.
 */
@@ -304,6 +313,7 @@ int sdio_add_func(struct sdio_func *func)
        dev_set_name(&func->dev, "%s:%d", mmc_card_id(func->card), func->num);
+        sdio_set_of_node(func);
        sdio_acpi_set_handle(func);
        ret = device_add(&func->dev);
        if (ret == 0) {
@@ -327,6 +337,7 @@ void sdio_remove_func(struct sdio_func *func)
        dev_pm_domain_detach(&func->dev, false);
        device_del(&func->dev);
+        of_node_put(func->dev.of_node);
        put_device(&func->dev);
 }
diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c
index 69bbf2adb329..27117ba47073 100644
--- a/drivers/mmc/core/slot-gpio.c
+++ b/drivers/mmc/core/slot-gpio.c
@@ -18,11 +18,14 @@
 #include <linux/module.h>
 #include <linux/slab.h>
+#include "slot-gpio.h"
 struct mmc_gpio {
        struct gpio_desc *ro_gpio;
        struct gpio_desc *cd_gpio;
        bool override_ro_active_level;
        bool override_cd_active_level;
+        irqreturn_t (*cd_gpio_isr)(int irq, void *dev_id);
        char *ro_label;
        char cd_label[0];
 };
@@ -38,32 +41,20 @@ static irqreturn_t mmc_gpio_cd_irqt(int irq, void *dev_id)
        return IRQ_HANDLED;
 }
-static int mmc_gpio_alloc(struct mmc_host *host)
+int mmc_gpio_alloc(struct mmc_host *host)
 {
        size_t len = strlen(dev_name(host->parent)) + 4;
-        struct mmc_gpio *ctx;
+        struct mmc_gpio *ctx = devm_kzalloc(host->parent,
+                                sizeof(*ctx) + 2 * len, GFP_KERNEL);
-        mutex_lock(&host->slot.lock);
+        if (ctx) {
-        ctx = host->slot.handler_priv;
+                ctx->ro_label = ctx->cd_label + len;
-        if (!ctx) {
+                snprintf(ctx->cd_label, len, "%s cd", dev_name(host->parent));
-                /*
+                snprintf(ctx->ro_label, len, "%s ro", dev_name(host->parent));
-                 * devm_kzalloc() can be called after device_initialize(), even
+                host->slot.handler_priv = ctx;
-                 * before device_add(), i.e., between mmc_alloc_host() and
+                host->slot.cd_irq = -EINVAL;
-                 * mmc_add_host()
-                 */
-                ctx = devm_kzalloc(&host->class_dev, sizeof(*ctx) + 2 * len,
-                                   GFP_KERNEL);
-                if (ctx) {
-                        ctx->ro_label = ctx->cd_label + len;
-                        snprintf(ctx->cd_label, len, "%s cd", dev_name(host->parent));
-                        snprintf(ctx->ro_label, len, "%s ro", dev_name(host->parent));
-                        host->slot.handler_priv = ctx;
-                }
        }
-        mutex_unlock(&host->slot.lock);
        return ctx ? 0 : -ENOMEM;
 }
@@ -103,29 +94,19 @@ EXPORT_SYMBOL(mmc_gpio_get_cd);
 * @gpio: gpio number requested
 *
 * As devm_* managed functions are used in mmc_gpio_request_ro(), client
- * drivers do not need to explicitly call mmc_gpio_free_ro() for freeing up,
+ * drivers do not need to worry about freeing up memory.
- * if the requesting and freeing are only needed at probing and unbinding time
- * for once.  However, if client drivers do something special like runtime
- * switching for write-protection, they are responsible for calling
- * mmc_gpio_request_ro() and mmc_gpio_free_ro() as a pair on their own.
 *
 * Returns zero on success, else an error.
 */
 int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio)
 {
-        struct mmc_gpio *ctx;
+        struct mmc_gpio *ctx = host->slot.handler_priv;
        int ret;
        if (!gpio_is_valid(gpio))
                return -EINVAL;
-        ret = mmc_gpio_alloc(host);
+        ret = devm_gpio_request_one(host->parent, gpio, GPIOF_DIR_IN,
-        if (ret < 0)
-                return ret;
-        ctx = host->slot.handler_priv;
-        ret = devm_gpio_request_one(&host->class_dev, gpio, GPIOF_DIR_IN,
                                    ctx->ro_label);
        if (ret < 0)
                return ret;
@@ -156,8 +137,10 @@ void mmc_gpiod_request_cd_irq(struct mmc_host *host)
                irq = -EINVAL;
        if (irq >= 0) {
-                ret = devm_request_threaded_irq(&host->class_dev, irq,
+                if (!ctx->cd_gpio_isr)
-                        NULL, mmc_gpio_cd_irqt,
+                        ctx->cd_gpio_isr = mmc_gpio_cd_irqt;
+                ret = devm_request_threaded_irq(host->parent, irq,
+                        NULL, ctx->cd_gpio_isr,
                        IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
                        ctx->cd_label, host);
                if (ret < 0)
@@ -171,6 +154,19 @@ void mmc_gpiod_request_cd_irq(struct mmc_host *host)
 }
 EXPORT_SYMBOL(mmc_gpiod_request_cd_irq);
+/* Register an alternate interrupt service routine for
+ * the card-detect GPIO.
+ */
+void mmc_gpio_set_cd_isr(struct mmc_host *host,
+                         irqreturn_t (*isr)(int irq, void *dev_id))
+{
+        struct mmc_gpio *ctx = host->slot.handler_priv;
+        WARN_ON(ctx->cd_gpio_isr);
+        ctx->cd_gpio_isr = isr;
+}
+EXPORT_SYMBOL(mmc_gpio_set_cd_isr);
 /**
 * mmc_gpio_request_cd - request a gpio for card-detection
 * @host: mmc host
@@ -178,11 +174,7 @@ EXPORT_SYMBOL(mmc_gpiod_request_cd_irq);
 * @debounce: debounce time in microseconds
 *
 * As devm_* managed functions are used in mmc_gpio_request_cd(), client
- * drivers do not need to explicitly call mmc_gpio_free_cd() for freeing up,
+ * drivers do not need to worry about freeing up memory.
- * if the requesting and freeing are only needed at probing and unbinding time
- * for once.  However, if client drivers do something special like runtime
- * switching for card-detection, they are responsible for calling
- * mmc_gpio_request_cd() and mmc_gpio_free_cd() as a pair on their own.
 *
 * If GPIO debouncing is desired, set the debounce parameter to a non-zero
 * value. The caller is responsible for ensuring that the GPIO driver associated
@@ -193,16 +185,10 @@ EXPORT_SYMBOL(mmc_gpiod_request_cd_irq);
 int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio,
                        unsigned int debounce)
 {
-        struct mmc_gpio *ctx;
+        struct mmc_gpio *ctx = host->slot.handler_priv;
        int ret;
-        ret = mmc_gpio_alloc(host);
+        ret = devm_gpio_request_one(host->parent, gpio, GPIOF_DIR_IN,
-        if (ret < 0)
-                return ret;
-        ctx = host->slot.handler_priv;
-        ret = devm_gpio_request_one(&host->class_dev, gpio, GPIOF_DIR_IN,
                                    ctx->cd_label);
        if (ret < 0)
                /*
@@ -226,55 +212,6 @@ int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio,
 EXPORT_SYMBOL(mmc_gpio_request_cd);
 /**
- * mmc_gpio_free_ro - free the write-protection gpio
- * @host: mmc host
- *
- * It's provided only for cases that client drivers need to manually free
- * up the write-protection gpio requested by mmc_gpio_request_ro().
- */
-void mmc_gpio_free_ro(struct mmc_host *host)
-{
-        struct mmc_gpio *ctx = host->slot.handler_priv;
-        int gpio;
-        if (!ctx || !ctx->ro_gpio)
-                return;
-        gpio = desc_to_gpio(ctx->ro_gpio);
-        ctx->ro_gpio = NULL;
-        devm_gpio_free(&host->class_dev, gpio);
-}
-EXPORT_SYMBOL(mmc_gpio_free_ro);
-/**
- * mmc_gpio_free_cd - free the card-detection gpio
- * @host: mmc host
- *
- * It's provided only for cases that client drivers need to manually free
- * up the card-detection gpio requested by mmc_gpio_request_cd().
- */
-void mmc_gpio_free_cd(struct mmc_host *host)
-{
-        struct mmc_gpio *ctx = host->slot.handler_priv;
-        int gpio;
-        if (!ctx || !ctx->cd_gpio)
-                return;
-        if (host->slot.cd_irq >= 0) {
-                devm_free_irq(&host->class_dev, host->slot.cd_irq, host);
-                host->slot.cd_irq = -EINVAL;
-        }
-        gpio = desc_to_gpio(ctx->cd_gpio);
-        ctx->cd_gpio = NULL;
-        devm_gpio_free(&host->class_dev, gpio);
-}
-EXPORT_SYMBOL(mmc_gpio_free_cd);
-/**
 * mmc_gpiod_request_cd - request a gpio descriptor for card-detection
 * @host: mmc host
 * @con_id: function within the GPIO consumer
@@ -285,8 +222,7 @@ EXPORT_SYMBOL(mmc_gpio_free_cd);
 * to NULL to ignore
 *
 * Use this function in place of mmc_gpio_request_cd() to use the GPIO
- * descriptor API.  Note that it is paired with mmc_gpiod_free_cd() not
+ * descriptor API.  Note that it must be called prior to mmc_add_host()
- * mmc_gpio_free_cd().  Note also that it must be called prior to mmc_add_host()
 * otherwise the caller must also call mmc_gpiod_request_cd_irq().
 *
 * Returns zero on success, else an error.
@@ -295,16 +231,10 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
                         unsigned int idx, bool override_active_level,
                         unsigned int debounce, bool *gpio_invert)
 {
-        struct mmc_gpio *ctx;
+        struct mmc_gpio *ctx = host->slot.handler_priv;
        struct gpio_desc *desc;
        int ret;
-        ret = mmc_gpio_alloc(host);
-        if (ret < 0)
-                return ret;
-        ctx = host->slot.handler_priv;
        if (!con_id)
                con_id = ctx->cd_label;
@@ -339,8 +269,7 @@ EXPORT_SYMBOL(mmc_gpiod_request_cd);
 * set to NULL to ignore
 *
 * Use this function in place of mmc_gpio_request_ro() to use the GPIO
- * descriptor API.  Note that it is paired with mmc_gpiod_free_ro() not
+ * descriptor API.
- * mmc_gpio_free_ro().
 *
 * Returns zero on success, else an error.
 */
@@ -348,16 +277,10 @@ int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
                         unsigned int idx, bool override_active_level,
                         unsigned int debounce, bool *gpio_invert)
 {
-        struct mmc_gpio *ctx;
+        struct mmc_gpio *ctx = host->slot.handler_priv;
        struct gpio_desc *desc;
        int ret;
-        ret = mmc_gpio_alloc(host);
-        if (ret < 0)
-                return ret;
-        ctx = host->slot.handler_priv;
        if (!con_id)
                con_id = ctx->ro_label;
@@ -380,28 +303,3 @@ int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
        return 0;
 }
 EXPORT_SYMBOL(mmc_gpiod_request_ro);
-/**
- * mmc_gpiod_free_cd - free the card-detection gpio descriptor
- * @host: mmc host
- *
- * It's provided only for cases that client drivers need to manually free
- * up the card-detection gpio requested by mmc_gpiod_request_cd().
- */
-void mmc_gpiod_free_cd(struct mmc_host *host)
-{
-        struct mmc_gpio *ctx = host->slot.handler_priv;
-        if (!ctx || !ctx->cd_gpio)
-                return;
-        if (host->slot.cd_irq >= 0) {
-                devm_free_irq(&host->class_dev, host->slot.cd_irq, host);
-                host->slot.cd_irq = -EINVAL;
-        }
-        devm_gpiod_put(host->parent, ctx->cd_gpio);
-        ctx->cd_gpio = NULL;
-}
-EXPORT_SYMBOL(mmc_gpiod_free_cd);
diff --git a/drivers/mmc/core/slot-gpio.h b/drivers/mmc/core/slot-gpio.h
new file mode 100644
index 000000000000..8c1854dc5d58
--- /dev/null
+++ b/drivers/mmc/core/slot-gpio.h
@@ -0,0 +1,13 @@
+/*
+  * Copyright (C) 2014 Linaro Ltd
+ *
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef _MMC_CORE_SLOTGPIO_H
+#define _MMC_CORE_SLOTGPIO_H
+int mmc_gpio_alloc(struct mmc_host *host);
+#endif
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 2d6fbdd11803..61ac63a3776a 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -57,6 +57,7 @@ config MMC_SDHCI_IO_ACCESSORS
 config MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
        bool
+        depends on MMC_SDHCI
        select MMC_SDHCI_IO_ACCESSORS
        help
          This option is selected by drivers running on big endian hosts
@@ -82,6 +83,7 @@ config MMC_SDHCI_PCI
 config MMC_RICOH_MMC
        bool "Ricoh MMC Controller Disabler"
        depends on MMC_SDHCI_PCI
+        default y
        help
          This adds a pci quirk to disable Ricoh MMC Controller. This
          proprietary controller is unnecessary because the SDHCI driver
@@ -228,6 +230,7 @@ config MMC_SDHCI_PXAV3
        tristate "Marvell MMP2 SD Host Controller support (PXAV3)"
        depends on CLKDEV_LOOKUP
        depends on MMC_SDHCI_PLTFM
+        depends on ARCH_MMP || COMPILE_TEST
        default CPU_MMP2
        help
          This selects the Marvell(R) PXAV3 SD Host Controller.
@@ -240,6 +243,7 @@ config MMC_SDHCI_PXAV2
        tristate "Marvell PXA9XX SD Host Controller support (PXAV2)"
        depends on CLKDEV_LOOKUP
        depends on MMC_SDHCI_PLTFM
+        depends on ARCH_MMP || COMPILE_TEST
        default CPU_PXA910
        help
          This selects the Marvell(R) PXAV2 SD Host Controller.
@@ -292,6 +296,17 @@ config MMC_SDHCI_BCM2835
          If unsure, say N.
+config MMC_SDHCI_F_SDH30
+        tristate "SDHCI support for Fujitsu Semiconductor F_SDH30"
+        depends on MMC_SDHCI_PLTFM
+        depends on OF
+        help
+          This selects the Secure Digital Host Controller Interface (SDHCI)
+          Needed by some Fujitsu SoC for MMC / SD / SDIO support.
+          If you have a controller with this interface, say Y or M here.
+          If unsure, say N.
 config MMC_MOXART
        tristate "MOXART SD/MMC Host Controller support"
        depends on ARCH_MOXART && MMC
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index f7b0a77cf419..6a7cfe0de332 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_MMC_SDHCI_PXAV3)	+= sdhci-pxav3.o
 obj-$(CONFIG_MMC_SDHCI_PXAV2)   += sdhci-pxav2.o
 obj-$(CONFIG_MMC_SDHCI_S3C)     += sdhci-s3c.o
 obj-$(CONFIG_MMC_SDHCI_SIRF)    += sdhci-sirf.o
+obj-$(CONFIG_MMC_SDHCI_F_SDH30) += sdhci_f_sdh30.o
 obj-$(CONFIG_MMC_SDHCI_SPEAR)   += sdhci-spear.o
 obj-$(CONFIG_MMC_WBSD)          += wbsd.o
 obj-$(CONFIG_MMC_AU1X)          += au1xmmc.o
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 509365cb22c6..fe32948c6114 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -21,43 +21,7 @@
 #include "dw_mmc.h"
 #include "dw_mmc-pltfm.h"
+#include "dw_mmc-exynos.h"
-#define NUM_PINS(x)                     (x + 2)
-#define SDMMC_CLKSEL                    0x09C
-#define SDMMC_CLKSEL64                  0x0A8
-#define SDMMC_CLKSEL_CCLK_SAMPLE(x)     (((x) & 7) << 0)
-#define SDMMC_CLKSEL_CCLK_DRIVE(x)      (((x) & 7) << 16)
-#define SDMMC_CLKSEL_CCLK_DIVIDER(x)    (((x) & 7) << 24)
-#define SDMMC_CLKSEL_GET_DRV_WD3(x)     (((x) >> 16) & 0x7)
-#define SDMMC_CLKSEL_TIMING(x, y, z)    (SDMMC_CLKSEL_CCLK_SAMPLE(x) |  \
-                                        SDMMC_CLKSEL_CCLK_DRIVE(y) |    \
-                                        SDMMC_CLKSEL_CCLK_DIVIDER(z))
-#define SDMMC_CLKSEL_WAKEUP_INT         BIT(11)
-#define EXYNOS4210_FIXED_CIU_CLK_DIV    2
-#define EXYNOS4412_FIXED_CIU_CLK_DIV    4
-/* Block number in eMMC */
-#define DWMCI_BLOCK_NUM         0xFFFFFFFF
-#define SDMMC_EMMCP_BASE        0x1000
-#define SDMMC_MPSECURITY        (SDMMC_EMMCP_BASE + 0x0010)
-#define SDMMC_MPSBEGIN0         (SDMMC_EMMCP_BASE + 0x0200)
-#define SDMMC_MPSEND0           (SDMMC_EMMCP_BASE + 0x0204)
-#define SDMMC_MPSCTRL0          (SDMMC_EMMCP_BASE + 0x020C)
-/* SMU control bits */
-#define DWMCI_MPSCTRL_SECURE_READ_BIT           BIT(7)
-#define DWMCI_MPSCTRL_SECURE_WRITE_BIT          BIT(6)
-#define DWMCI_MPSCTRL_NON_SECURE_READ_BIT       BIT(5)
-#define DWMCI_MPSCTRL_NON_SECURE_WRITE_BIT      BIT(4)
-#define DWMCI_MPSCTRL_USE_FUSE_KEY              BIT(3)
-#define DWMCI_MPSCTRL_ECB_MODE                  BIT(2)
-#define DWMCI_MPSCTRL_ENCRYPTION                BIT(1)
-#define DWMCI_MPSCTRL_VALID                     BIT(0)
-#define EXYNOS_CCLKIN_MIN       50000000        /* unit: HZ */
 /* Variations in Exynos specific dw-mshc controller */
 enum dw_mci_exynos_type {
@@ -114,11 +78,11 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host)
        if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU ||
                priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU) {
                mci_writel(host, MPSBEGIN0, 0);
-                mci_writel(host, MPSEND0, DWMCI_BLOCK_NUM);
+                mci_writel(host, MPSEND0, SDMMC_ENDING_SEC_NR_MAX);
-                mci_writel(host, MPSCTRL0, DWMCI_MPSCTRL_SECURE_WRITE_BIT |
+                mci_writel(host, MPSCTRL0, SDMMC_MPSCTRL_SECURE_WRITE_BIT |
-                           DWMCI_MPSCTRL_NON_SECURE_READ_BIT |
+                           SDMMC_MPSCTRL_NON_SECURE_READ_BIT |
-                           DWMCI_MPSCTRL_VALID |
+                           SDMMC_MPSCTRL_VALID |
-                           DWMCI_MPSCTRL_NON_SECURE_WRITE_BIT);
+                           SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT);
        }
        return 0;
@@ -127,9 +91,9 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host)
 static int dw_mci_exynos_setup_clock(struct dw_mci *host)
 {
        struct dw_mci_exynos_priv_data *priv = host->priv;
-        unsigned long rate = clk_get_rate(host->ciu_clk);
-        host->bus_hz = rate / (priv->ciu_div + 1);
+        host->bus_hz /= (priv->ciu_div + 1);
        return 0;
 }
@@ -232,8 +196,11 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)
                        mci_writel(host, CLKSEL, priv->sdr_timing);
        }
-        /* Don't care if wanted clock is zero */
+        /*
-        if (!wanted)
+         * Don't care if wanted clock is zero or
+         * ciu clock is unavailable
+         */
+        if (!wanted || IS_ERR(host->ciu_clk))
                return;
        /* Guaranteed minimum frequency for cclkin */
@@ -263,10 +230,8 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
        int ret;
        priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);
-        if (!priv) {
+        if (!priv)
-                dev_err(host->dev, "mem alloc failed for private data\n");
                return -ENOMEM;
-        }
        for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) {
                if (of_device_is_compatible(np, exynos_compat[idx].compatible))
@@ -375,64 +340,23 @@ out:
        return loc;
 }
-static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot, u32 opcode,
+static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot)
-                                        struct dw_mci_tuning_data *tuning_data)
 {
        struct dw_mci *host = slot->host;
        struct mmc_host *mmc = slot->mmc;
-        const u8 *blk_pattern = tuning_data->blk_pattern;
-        u8 *blk_test;
-        unsigned int blksz = tuning_data->blksz;
        u8 start_smpl, smpl, candiates = 0;
        s8 found = -1;
        int ret = 0;
-        blk_test = kmalloc(blksz, GFP_KERNEL);
-        if (!blk_test)
-                return -ENOMEM;
        start_smpl = dw_mci_exynos_get_clksmpl(host);
        do {
-                struct mmc_request mrq = {NULL};
-                struct mmc_command cmd = {0};
-                struct mmc_command stop = {0};
-                struct mmc_data data = {0};
-                struct scatterlist sg;
-                cmd.opcode = opcode;
-                cmd.arg = 0;
-                cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
-                stop.opcode = MMC_STOP_TRANSMISSION;
-                stop.arg = 0;
-                stop.flags = MMC_RSP_R1B | MMC_CMD_AC;
-                data.blksz = blksz;
-                data.blocks = 1;
-                data.flags = MMC_DATA_READ;
-                data.sg = &sg;
-                data.sg_len = 1;
-                sg_init_one(&sg, blk_test, blksz);
-                mrq.cmd = &cmd;
-                mrq.stop = &stop;
-                mrq.data = &data;
-                host->mrq = &mrq;
                mci_writel(host, TMOUT, ~0);
                smpl = dw_mci_exynos_move_next_clksmpl(host);
-                mmc_wait_for_req(mmc, &mrq);
+                if (!mmc_send_tuning(mmc))
+                        candiates |= (1 << smpl);
-                if (!cmd.error && !data.error) {
-                        if (!memcmp(blk_pattern, blk_test, blksz))
-                                candiates |= (1 << smpl);
-                } else {
-                        dev_dbg(host->dev,
-                                "Tuning error: cmd.error:%d, data.error:%d\n",
-                                cmd.error, data.error);
-                }
        } while (start_smpl != smpl);
        found = dw_mci_exynos_get_best_clksmpl(candiates);
@@ -441,7 +365,6 @@ static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot, u32 opcode,
        else
                ret = -EIO;
-        kfree(blk_test);
        return ret;
 }
@@ -499,7 +422,7 @@ static const struct dev_pm_ops dw_mci_exynos_pmops = {
 static struct platform_driver dw_mci_exynos_pltfm_driver = {
        .probe          = dw_mci_exynos_probe,
-        .remove         = __exit_p(dw_mci_pltfm_remove),
+        .remove         = dw_mci_pltfm_remove,
        .driver         = {
                .name           = "dwmmc_exynos",
                .of_match_table = dw_mci_exynos_match,
diff --git a/drivers/mmc/host/dw_mmc-exynos.h b/drivers/mmc/host/dw_mmc-exynos.h
new file mode 100644
index 000000000000..7872ce586b55
--- /dev/null
+++ b/drivers/mmc/host/dw_mmc-exynos.h
@@ -0,0 +1,56 @@
+/*
+ * Exynos Specific Extensions for Synopsys DW Multimedia Card Interface driver
+ *
+ * Copyright (C) 2012-2014 Samsung Electronics Co., Ltd.
+ *
+ * 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.
+ */
+#ifndef _DW_MMC_EXYNOS_H_
+#define _DW_MMC_EXYNOS_H_
+/* Extended Register's Offset */
+#define SDMMC_CLKSEL                    0x09C
+#define SDMMC_CLKSEL64                  0x0A8
+/* CLKSEL register defines */
+#define SDMMC_CLKSEL_CCLK_SAMPLE(x)     (((x) & 7) << 0)
+#define SDMMC_CLKSEL_CCLK_DRIVE(x)      (((x) & 7) << 16)
+#define SDMMC_CLKSEL_CCLK_DIVIDER(x)    (((x) & 7) << 24)
+#define SDMMC_CLKSEL_GET_DRV_WD3(x)     (((x) >> 16) & 0x7)
+#define SDMMC_CLKSEL_TIMING(x, y, z)    (SDMMC_CLKSEL_CCLK_SAMPLE(x) |  \
+                                         SDMMC_CLKSEL_CCLK_DRIVE(y) |   \
+                                         SDMMC_CLKSEL_CCLK_DIVIDER(z))
+#define SDMMC_CLKSEL_WAKEUP_INT         BIT(11)
+/* Protector Register */
+#define SDMMC_EMMCP_BASE        0x1000
+#define SDMMC_MPSECURITY        (SDMMC_EMMCP_BASE + 0x0010)
+#define SDMMC_MPSBEGIN0         (SDMMC_EMMCP_BASE + 0x0200)
+#define SDMMC_MPSEND0           (SDMMC_EMMCP_BASE + 0x0204)
+#define SDMMC_MPSCTRL0          (SDMMC_EMMCP_BASE + 0x020C)
+/* SMU control defines */
+#define SDMMC_MPSCTRL_SECURE_READ_BIT           BIT(7)
+#define SDMMC_MPSCTRL_SECURE_WRITE_BIT          BIT(6)
+#define SDMMC_MPSCTRL_NON_SECURE_READ_BIT       BIT(5)
+#define SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT      BIT(4)
+#define SDMMC_MPSCTRL_USE_FUSE_KEY              BIT(3)
+#define SDMMC_MPSCTRL_ECB_MODE                  BIT(2)
+#define SDMMC_MPSCTRL_ENCRYPTION                BIT(1)
+#define SDMMC_MPSCTRL_VALID                     BIT(0)
+/* Maximum number of Ending sector */
+#define SDMMC_ENDING_SEC_NR_MAX 0xFFFFFFFF
+/* Fixed clock divider */
+#define EXYNOS4210_FIXED_CIU_CLK_DIV    2
+#define EXYNOS4412_FIXED_CIU_CLK_DIV    4
+/* Minimal required clock frequency for cclkin, unit: HZ */
+#define EXYNOS_CCLKIN_MIN       50000000
+#endif /* _DW_MMC_EXYNOS_H_ */
diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c
index 5650ac488cf3..e2a726a503ee 100644
--- a/drivers/mmc/host/dw_mmc-rockchip.c
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -133,7 +133,7 @@ static SIMPLE_DEV_PM_OPS(dw_mci_rockchip_pmops,
 static struct platform_driver dw_mci_rockchip_pltfm_driver = {
        .probe          = dw_mci_rockchip_probe,
-        .remove         = __exit_p(dw_mci_pltfm_remove),
+        .remove         = dw_mci_pltfm_remove,
        .driver         = {
                .name           = "dwmmc_rockchip",
                .of_match_table = dw_mci_rockchip_match,
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 67c04518ec4c..4d2e3c2e1830 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -27,6 +27,7 @@
 #include <linux/stat.h>
 #include <linux/delay.h>
 #include <linux/irq.h>
+#include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/mmc.h>
 #include <linux/mmc/sd.h>
@@ -313,7 +314,9 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd)
        if (cmdr == MMC_READ_SINGLE_BLOCK ||
            cmdr == MMC_READ_MULTIPLE_BLOCK ||
            cmdr == MMC_WRITE_BLOCK ||
-            cmdr == MMC_WRITE_MULTIPLE_BLOCK) {
+            cmdr == MMC_WRITE_MULTIPLE_BLOCK ||
+            cmdr == MMC_SEND_TUNING_BLOCK ||
+            cmdr == MMC_SEND_TUNING_BLOCK_HS200) {
                stop->opcode = MMC_STOP_TRANSMISSION;
                stop->arg = 0;
                stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
@@ -758,6 +761,7 @@ disable:
 static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
 {
+        unsigned long irqflags;
        int sg_len;
        u32 temp;
@@ -794,9 +798,11 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
        mci_writel(host, CTRL, temp);
        /* Disable RX/TX IRQs, let DMA handle it */
+        spin_lock_irqsave(&host->irq_lock, irqflags);
        temp = mci_readl(host, INTMASK);
        temp  &= ~(SDMMC_INT_RXDR | SDMMC_INT_TXDR);
        mci_writel(host, INTMASK, temp);
+        spin_unlock_irqrestore(&host->irq_lock, irqflags);
        host->dma_ops->start(host, sg_len);
@@ -805,6 +811,7 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
 static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data)
 {
+        unsigned long irqflags;
        u32 temp;
        data->error = -EINPROGRESS;
@@ -833,9 +840,12 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data)
                host->part_buf_count = 0;
                mci_writel(host, RINTSTS, SDMMC_INT_TXDR | SDMMC_INT_RXDR);
+                spin_lock_irqsave(&host->irq_lock, irqflags);
                temp = mci_readl(host, INTMASK);
                temp |= SDMMC_INT_TXDR | SDMMC_INT_RXDR;
                mci_writel(host, INTMASK, temp);
+                spin_unlock_irqrestore(&host->irq_lock, irqflags);
                temp = mci_readl(host, CTRL);
                temp &= ~SDMMC_CTRL_DMA_ENABLE;
@@ -926,7 +936,7 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit)
                /* enable clock; only low power if no SDIO */
                clk_en_a = SDMMC_CLKEN_ENABLE << slot->id;
-                if (!(mci_readl(host, INTMASK) & SDMMC_INT_SDIO(slot->sdio_id)))
+                if (!test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags))
                        clk_en_a |= SDMMC_CLKEN_LOW_PWR << slot->id;
                mci_writel(host, CLKENA, clk_en_a);
@@ -1109,6 +1119,12 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                                return;
                        }
                }
+                set_bit(DW_MMC_CARD_NEED_INIT, &slot->flags);
+                regs = mci_readl(slot->host, PWREN);
+                regs |= (1 << slot->id);
+                mci_writel(slot->host, PWREN, regs);
+                break;
+        case MMC_POWER_ON:
                if (!IS_ERR(mmc->supply.vqmmc) && !slot->host->vqmmc_enabled) {
                        ret = regulator_enable(mmc->supply.vqmmc);
                        if (ret < 0)
@@ -1117,10 +1133,6 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                        else
                                slot->host->vqmmc_enabled = true;
                }
-                set_bit(DW_MMC_CARD_NEED_INIT, &slot->flags);
-                regs = mci_readl(slot->host, PWREN);
-                regs |= (1 << slot->id);
-                mci_writel(slot->host, PWREN, regs);
                break;
        case MMC_POWER_OFF:
                if (!IS_ERR(mmc->supply.vmmc))
@@ -1245,27 +1257,37 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
        return present;
 }
-/*
+static void dw_mci_init_card(struct mmc_host *mmc, struct mmc_card *card)
- * Disable lower power mode.
- *
- * Low power mode will stop the card clock when idle.  According to the
- * description of the CLKENA register we should disable low power mode
- * for SDIO cards if we need SDIO interrupts to work.
- *
- * This function is fast if low power mode is already disabled.
- */
-static void dw_mci_disable_low_power(struct dw_mci_slot *slot)
 {
+        struct dw_mci_slot *slot = mmc_priv(mmc);
        struct dw_mci *host = slot->host;
-        u32 clk_en_a;
-        const u32 clken_low_pwr = SDMMC_CLKEN_LOW_PWR << slot->id;
-        clk_en_a = mci_readl(host, CLKENA);
+        /*
+         * Low power mode will stop the card clock when idle.  According to the
+         * description of the CLKENA register we should disable low power mode
+         * for SDIO cards if we need SDIO interrupts to work.
+         */
+        if (mmc->caps & MMC_CAP_SDIO_IRQ) {
+                const u32 clken_low_pwr = SDMMC_CLKEN_LOW_PWR << slot->id;
+                u32 clk_en_a_old;
+                u32 clk_en_a;
-        if (clk_en_a & clken_low_pwr) {
+                clk_en_a_old = mci_readl(host, CLKENA);
-                mci_writel(host, CLKENA, clk_en_a & ~clken_low_pwr);
-                mci_send_cmd(slot, SDMMC_CMD_UPD_CLK |
+                if (card->type == MMC_TYPE_SDIO ||
-                             SDMMC_CMD_PRV_DAT_WAIT, 0);
+                    card->type == MMC_TYPE_SD_COMBO) {
+                        set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+                        clk_en_a = clk_en_a_old & ~clken_low_pwr;
+                } else {
+                        clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+                        clk_en_a = clk_en_a_old | clken_low_pwr;
+                }
+                if (clk_en_a != clk_en_a_old) {
+                        mci_writel(host, CLKENA, clk_en_a);
+                        mci_send_cmd(slot, SDMMC_CMD_UPD_CLK |
+                                     SDMMC_CMD_PRV_DAT_WAIT, 0);
+                }
        }
 }
@@ -1273,25 +1295,20 @@ static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
 {
        struct dw_mci_slot *slot = mmc_priv(mmc);
        struct dw_mci *host = slot->host;
+        unsigned long irqflags;
        u32 int_mask;
+        spin_lock_irqsave(&host->irq_lock, irqflags);
        /* Enable/disable Slot Specific SDIO interrupt */
        int_mask = mci_readl(host, INTMASK);
-        if (enb) {
+        if (enb)
-                /*
+                int_mask |= SDMMC_INT_SDIO(slot->sdio_id);
-                 * Turn off low power mode if it was enabled.  This is a bit of
+        else
-                 * a heavy operation and we disable / enable IRQs a lot, so
+                int_mask &= ~SDMMC_INT_SDIO(slot->sdio_id);
-                 * we'll leave low power mode disabled and it will get
+        mci_writel(host, INTMASK, int_mask);
-                 * re-enabled again in dw_mci_setup_bus().
-                 */
-                dw_mci_disable_low_power(slot);
-                mci_writel(host, INTMASK,
+        spin_unlock_irqrestore(&host->irq_lock, irqflags);
-                           (int_mask | SDMMC_INT_SDIO(slot->sdio_id)));
-        } else {
-                mci_writel(host, INTMASK,
-                           (int_mask & ~SDMMC_INT_SDIO(slot->sdio_id)));
-        }
 }
 static int dw_mci_execute_tuning(struct mmc_host *mmc, u32 opcode)
@@ -1299,30 +1316,10 @@ static int dw_mci_execute_tuning(struct mmc_host *mmc, u32 opcode)
        struct dw_mci_slot *slot = mmc_priv(mmc);
        struct dw_mci *host = slot->host;
        const struct dw_mci_drv_data *drv_data = host->drv_data;
-        struct dw_mci_tuning_data tuning_data;
        int err = -ENOSYS;
-        if (opcode == MMC_SEND_TUNING_BLOCK_HS200) {
-                if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
-                        tuning_data.blk_pattern = tuning_blk_pattern_8bit;
-                        tuning_data.blksz = sizeof(tuning_blk_pattern_8bit);
-                } else if (mmc->ios.bus_width == MMC_BUS_WIDTH_4) {
-                        tuning_data.blk_pattern = tuning_blk_pattern_4bit;
-                        tuning_data.blksz = sizeof(tuning_blk_pattern_4bit);
-                } else {
-                        return -EINVAL;
-                }
-        } else if (opcode == MMC_SEND_TUNING_BLOCK) {
-                tuning_data.blk_pattern = tuning_blk_pattern_4bit;
-                tuning_data.blksz = sizeof(tuning_blk_pattern_4bit);
-        } else {
-                dev_err(host->dev,
-                        "Undefined command(%d) for tuning\n", opcode);
-                return -EINVAL;
-        }
        if (drv_data && drv_data->execute_tuning)
-                err = drv_data->execute_tuning(slot, opcode, &tuning_data);
+                err = drv_data->execute_tuning(slot);
        return err;
 }
@@ -1337,7 +1334,7 @@ static const struct mmc_host_ops dw_mci_ops = {
        .execute_tuning         = dw_mci_execute_tuning,
        .card_busy              = dw_mci_card_busy,
        .start_signal_voltage_switch = dw_mci_switch_voltage,
+        .init_card              = dw_mci_init_card,
 };
 static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
@@ -2319,9 +2316,9 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 #ifdef CONFIG_MMC_DW_IDMAC
                mmc->max_segs = host->ring_size;
                mmc->max_blk_size = 65536;
-                mmc->max_blk_count = host->ring_size;
                mmc->max_seg_size = 0x1000;
-                mmc->max_req_size = mmc->max_seg_size * mmc->max_blk_count;
+                mmc->max_req_size = mmc->max_seg_size * host->ring_size;
+                mmc->max_blk_count = mmc->max_req_size / 512;
 #else
                mmc->max_segs = 64;
                mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */
@@ -2533,10 +2530,8 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
        u32 clock_frequency;
        pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-        if (!pdata) {
+        if (!pdata)
-                dev_err(dev, "could not allocate memory for pdata\n");
                return ERR_PTR(-ENOMEM);
-        }
        /* find out number of slots supported */
        if (of_property_read_u32(dev->of_node, "num-slots",
@@ -2660,6 +2655,7 @@ int dw_mci_probe(struct dw_mci *host)
        host->quirks = host->pdata->quirks;
        spin_lock_init(&host->lock);
+        spin_lock_init(&host->irq_lock);
        INIT_LIST_HEAD(&host->queue);
        /*
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 0d0f7a271d63..18c4afe683b8 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -244,15 +244,11 @@ struct dw_mci_slot {
        unsigned long           flags;
 #define DW_MMC_CARD_PRESENT     0
 #define DW_MMC_CARD_NEED_INIT   1
+#define DW_MMC_CARD_NO_LOW_PWR  2
        int                     id;
        int                     sdio_id;
 };
-struct dw_mci_tuning_data {
-        const u8 *blk_pattern;
-        unsigned int blksz;
-};
 /**
 * dw_mci driver data - dw-mshc implementation specific driver data.
 * @caps: mmc subsystem specified capabilities of the controller(s).
@@ -274,7 +270,6 @@ struct dw_mci_drv_data {
        void            (*prepare_command)(struct dw_mci *host, u32 *cmdr);
        void            (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
        int             (*parse_dt)(struct dw_mci *host);
-        int             (*execute_tuning)(struct dw_mci_slot *slot, u32 opcode,
+        int             (*execute_tuning)(struct dw_mci_slot *slot);
-                                        struct dw_mci_tuning_data *tuning_data);
 };
 #endif /* _DW_MMC_H_ */
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 8232e9a02d40..7fe16194ebc8 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -430,7 +430,6 @@ static void mmci_init_sg(struct mmci_host *host, struct mmc_data *data)
 static void mmci_dma_setup(struct mmci_host *host)
 {
        const char *rxname, *txname;
-        dma_cap_mask_t mask;
        struct variant_data *variant = host->variant;
        host->dma_rx_channel = dma_request_slave_channel(mmc_dev(host->mmc), "rx");
@@ -439,10 +438,6 @@ static void mmci_dma_setup(struct mmci_host *host)
        /* initialize pre request cookie */
        host->next_data.cookie = 1;
-        /* Try to acquire a generic DMA engine slave channel */
-        dma_cap_zero(mask);
-        dma_cap_set(DMA_SLAVE, mask);
        /*
         * If only an RX channel is specified, the driver will
         * attempt to use it bidirectionally, however if it is
@@ -1739,10 +1734,10 @@ static int mmci_probe(struct amba_device *dev,
        pm_runtime_set_autosuspend_delay(&dev->dev, 50);
        pm_runtime_use_autosuspend(&dev->dev);
-        pm_runtime_put(&dev->dev);
        mmc_add_host(mmc);
+        pm_runtime_put(&dev->dev);
        return 0;
 clk_disable:
diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index f3e18d08e852..006f1862444b 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
+#include <linux/errno.h>
 #include <linux/interrupt.h>
 #include <linux/blkdev.h>
 #include <linux/dma-mapping.h>
@@ -562,7 +563,6 @@ static int moxart_probe(struct platform_device *pdev)
        struct dma_slave_config cfg;
        struct clk *clk;
        void __iomem *reg_mmc;
-        dma_cap_mask_t mask;
        int irq, ret;
        u32 i;
@@ -586,9 +586,8 @@ static int moxart_probe(struct platform_device *pdev)
                goto out;
        }
-        clk = of_clk_get(node, 0);
+        clk = devm_clk_get(dev, NULL);
        if (IS_ERR(clk)) {
-                dev_err(dev, "of_clk_get failed\n");
                ret = PTR_ERR(clk);
                goto out;
        }
@@ -599,10 +598,9 @@ static int moxart_probe(struct platform_device *pdev)
                goto out;
        }
-        mmc_of_parse(mmc);
+        ret = mmc_of_parse(mmc);
+        if (ret)
-        dma_cap_zero(mask);
+                goto out;
-        dma_cap_set(DMA_SLAVE, mask);
        host = mmc_priv(mmc);
        host->mmc = mmc;
@@ -611,8 +609,8 @@ static int moxart_probe(struct platform_device *pdev)
        host->timeout = msecs_to_jiffies(1000);
        host->sysclk = clk_get_rate(clk);
        host->fifo_width = readl(host->base + REG_FEATURE) << 2;
-        host->dma_chan_tx = of_dma_request_slave_channel(node, "tx");
+        host->dma_chan_tx = dma_request_slave_channel_reason(dev, "tx");
-        host->dma_chan_rx = of_dma_request_slave_channel(node, "rx");
+        host->dma_chan_rx = dma_request_slave_channel_reason(dev, "rx");
        spin_lock_init(&host->lock);
@@ -622,6 +620,11 @@ static int moxart_probe(struct platform_device *pdev)
        mmc->ocr_avail = 0xffff00;      /* Support 2.0v - 3.6v power. */
        if (IS_ERR(host->dma_chan_tx) || IS_ERR(host->dma_chan_rx)) {
+                if (PTR_ERR(host->dma_chan_tx) == -EPROBE_DEFER ||
+                    PTR_ERR(host->dma_chan_rx) == -EPROBE_DEFER) {
+                        ret = -EPROBE_DEFER;
+                        goto out;
+                }
                dev_dbg(dev, "PIO mode transfer enabled\n");
                host->have_dma = false;
        } else {
@@ -700,9 +703,6 @@ static int moxart_remove(struct platform_device *pdev)
                writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
                       host->base + REG_CLOCK_CONTROL);
        }
-        kfree(host);
        return 0;
 }
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 4f8618f4522d..a448498e3af2 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -25,7 +25,6 @@
 #include <linux/of_irq.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/slot-gpio.h>
-#include <linux/pinctrl/consumer.h>
 #include <asm/sizes.h>
 #include <asm/unaligned.h>
@@ -704,7 +703,6 @@ static int mvsd_probe(struct platform_device *pdev)
        const struct mbus_dram_target_info *dram;
        struct resource *r;
        int ret, irq;
-        struct pinctrl *pinctrl;
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        irq = platform_get_irq(pdev, 0);
@@ -721,10 +719,6 @@ static int mvsd_probe(struct platform_device *pdev)
        host->mmc = mmc;
        host->dev = &pdev->dev;
-        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
-        if (IS_ERR(pinctrl))
-                dev_warn(&pdev->dev, "no pins associated\n");
        /*
         * Some non-DT platforms do not pass a clock, and the clock
         * frequency is passed through platform_data. On DT platforms,
@@ -828,8 +822,6 @@ static int mvsd_probe(struct platform_device *pdev)
 out:
        if (mmc) {
-                mmc_gpio_free_cd(mmc);
-                mmc_gpio_free_ro(mmc);
                if (!IS_ERR(host->clk))
                        clk_disable_unprepare(host->clk);
                mmc_free_host(mmc);
@@ -844,8 +836,6 @@ static int mvsd_remove(struct platform_device *pdev)
        struct mvsd_host *host = mmc_priv(mmc);
-        mmc_gpio_free_cd(mmc);
-        mmc_gpio_free_ro(mmc);
        mmc_remove_host(mmc);
        del_timer_sync(&host->timer);
        mvsd_power_down(host);
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 60c4ca97a727..a82411a2c024 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -677,8 +677,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
        return 0;
 out_free_dma:
-        if (ssp->dmach)
+        dma_release_channel(ssp->dmach);
-                dma_release_channel(ssp->dmach);
 out_clk_disable:
        clk_disable_unprepare(ssp->clk);
 out_mmc_free:
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 7c71dcdcba8b..f84cfb01716d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -36,6 +36,7 @@
 #include <linux/mmc/host.h>
 #include <linux/mmc/core.h>
 #include <linux/mmc/mmc.h>
+#include <linux/mmc/slot-gpio.h>
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/gpio.h>
@@ -251,55 +252,24 @@ static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host);
 static int omap_hsmmc_card_detect(struct device *dev)
 {
        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-        struct omap_hsmmc_platform_data *mmc = host->pdata;
-        /* NOTE: assumes card detect signal is active-low */
+        return mmc_gpio_get_cd(host->mmc);
-        return !gpio_get_value_cansleep(mmc->switch_pin);
 }
 static int omap_hsmmc_get_wp(struct device *dev)
 {
        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-        struct omap_hsmmc_platform_data *mmc = host->pdata;
-        /* NOTE: assumes write protect signal is active-high */
+        return mmc_gpio_get_ro(host->mmc);
-        return gpio_get_value_cansleep(mmc->gpio_wp);
 }
 static int omap_hsmmc_get_cover_state(struct device *dev)
 {
        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-        struct omap_hsmmc_platform_data *mmc = host->pdata;
-        /* NOTE: assumes card detect signal is active-low */
+        return mmc_gpio_get_cd(host->mmc);
-        return !gpio_get_value_cansleep(mmc->switch_pin);
 }
-#ifdef CONFIG_PM
-static int omap_hsmmc_suspend_cdirq(struct device *dev)
-{
-        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-        disable_irq(host->card_detect_irq);
-        return 0;
-}
-static int omap_hsmmc_resume_cdirq(struct device *dev)
-{
-        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-        enable_irq(host->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_set_power(struct device *dev, int power_on, int vdd)
@@ -464,7 +434,10 @@ static inline int omap_hsmmc_have_reg(void)
 #endif
-static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host,
+static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id);
+static int omap_hsmmc_gpio_init(struct mmc_host *mmc,
+                                struct omap_hsmmc_host *host,
                                struct omap_hsmmc_platform_data *pdata)
 {
        int ret;
@@ -477,46 +450,24 @@ static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host,
                        host->card_detect = omap_hsmmc_card_detect;
                host->card_detect_irq =
                                gpio_to_irq(pdata->switch_pin);
-                ret = gpio_request(pdata->switch_pin, "mmc_cd");
+                mmc_gpio_set_cd_isr(mmc, omap_hsmmc_detect);
+                ret = mmc_gpio_request_cd(mmc, pdata->switch_pin, 0);
                if (ret)
                        return ret;
-                ret = gpio_direction_input(pdata->switch_pin);
-                if (ret)
-                        goto err_free_sp;
        } else {
                pdata->switch_pin = -EINVAL;
        }
        if (gpio_is_valid(pdata->gpio_wp)) {
                host->get_ro = omap_hsmmc_get_wp;
-                ret = gpio_request(pdata->gpio_wp, "mmc_wp");
+                ret = mmc_gpio_request_ro(mmc, pdata->gpio_wp);
-                if (ret)
-                        goto err_free_cd;
-                ret = gpio_direction_input(pdata->gpio_wp);
                if (ret)
-                        goto err_free_wp;
+                        return ret;
        } else {
                pdata->gpio_wp = -EINVAL;
        }
        return 0;
-err_free_wp:
-        gpio_free(pdata->gpio_wp);
-err_free_cd:
-        if (gpio_is_valid(pdata->switch_pin))
-err_free_sp:
-                gpio_free(pdata->switch_pin);
-        return ret;
-}
-static void omap_hsmmc_gpio_free(struct omap_hsmmc_host *host,
-                                 struct omap_hsmmc_platform_data *pdata)
-{
-        if (gpio_is_valid(pdata->gpio_wp))
-                gpio_free(pdata->gpio_wp);
-        if (gpio_is_valid(pdata->switch_pin))
-                gpio_free(pdata->switch_pin);
 }
 /*
@@ -1978,13 +1929,6 @@ static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
 {
        struct omap_hsmmc_platform_data *pdata;
        struct device_node *np = dev->of_node;
-        u32 bus_width, max_freq;
-        int cd_gpio, wp_gpio;
-        cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
-        wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
-        if (cd_gpio == -EPROBE_DEFER || wp_gpio == -EPROBE_DEFER)
-                return ERR_PTR(-EPROBE_DEFER);
        pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
        if (!pdata)
@@ -1993,34 +1937,20 @@ static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
        if (of_find_property(np, "ti,dual-volt", NULL))
                pdata->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
-        pdata->switch_pin = cd_gpio;
+        pdata->switch_pin = -EINVAL;
-        pdata->gpio_wp = wp_gpio;
+        pdata->gpio_wp = -EINVAL;
        if (of_find_property(np, "ti,non-removable", NULL)) {
                pdata->nonremovable = true;
                pdata->no_regulator_off_init = true;
        }
-        of_property_read_u32(np, "bus-width", &bus_width);
-        if (bus_width == 4)
-                pdata->caps |= MMC_CAP_4_BIT_DATA;
-        else if (bus_width == 8)
-                pdata->caps |= MMC_CAP_8_BIT_DATA;
        if (of_find_property(np, "ti,needs-special-reset", NULL))
                pdata->features |= HSMMC_HAS_UPDATED_RESET;
-        if (!of_property_read_u32(np, "max-frequency", &max_freq))
-                pdata->max_freq = max_freq;
        if (of_find_property(np, "ti,needs-special-hs-handling", NULL))
                pdata->features |= HSMMC_HAS_HSPE_SUPPORT;
-        if (of_find_property(np, "keep-power-in-suspend", NULL))
-                pdata->pm_caps |= MMC_PM_KEEP_POWER;
-        if (of_find_property(np, "enable-sdio-wakeup", NULL))
-                pdata->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
        return pdata;
 }
 #else
@@ -2078,6 +2008,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
                goto err;
        }
+        ret = mmc_of_parse(mmc);
+        if (ret)
+                goto err1;
        host            = mmc_priv(mmc);
        host->mmc       = mmc;
        host->pdata     = pdata;
@@ -2091,7 +2025,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
        host->next_data.cookie = 1;
        host->pbias_enabled = 0;
-        ret = omap_hsmmc_gpio_init(host, pdata);
+        ret = omap_hsmmc_gpio_init(mmc, host, pdata);
        if (ret)
                goto err_gpio;
@@ -2106,7 +2040,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
        if (pdata->max_freq > 0)
                mmc->f_max = pdata->max_freq;
-        else
+        else if (mmc->f_max == 0)
                mmc->f_max = OMAP_MMC_MAX_CLOCK;
        spin_lock_init(&host->irq_lock);
@@ -2160,7 +2094,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
        if (mmc_pdata(host)->nonremovable)
                mmc->caps |= MMC_CAP_NONREMOVABLE;
-        mmc->pm_caps = mmc_pdata(host)->pm_caps;
+        mmc->pm_caps |= mmc_pdata(host)->pm_caps;
        omap_hsmmc_conf_bus_power(host);
@@ -2222,22 +2156,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
        mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
-        /* Request IRQ for card detect */
-        if (host->card_detect_irq) {
-                ret = devm_request_threaded_irq(&pdev->dev,
-                                                host->card_detect_irq,
-                                                NULL, omap_hsmmc_detect,
-                                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-                                           mmc_hostname(mmc), host);
-                if (ret) {
-                        dev_err(mmc_dev(host->mmc),
-                                "Unable to grab MMC CD IRQ\n");
-                        goto err_irq_cd;
-                }
-                host->suspend = omap_hsmmc_suspend_cdirq;
-                host->resume = omap_hsmmc_resume_cdirq;
-        }
        omap_hsmmc_disable_irq(host);
        /*
@@ -2276,7 +2194,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 err_slot_name:
        mmc_remove_host(mmc);
-err_irq_cd:
        if (host->use_reg)
                omap_hsmmc_reg_put(host);
 err_irq:
@@ -2289,7 +2206,6 @@ err_irq:
        if (host->dbclk)
                clk_disable_unprepare(host->dbclk);
 err1:
-        omap_hsmmc_gpio_free(host, pdata);
 err_gpio:
        mmc_free_host(mmc);
 err:
@@ -2315,32 +2231,12 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
        if (host->dbclk)
                clk_disable_unprepare(host->dbclk);
-        omap_hsmmc_gpio_free(host, host->pdata);
        mmc_free_host(host->mmc);
        return 0;
 }
 #ifdef CONFIG_PM
-static int omap_hsmmc_prepare(struct device *dev)
-{
-        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-        if (host->suspend)
-                return host->suspend(dev);
-        return 0;
-}
-static void omap_hsmmc_complete(struct device *dev)
-{
-        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-        if (host->resume)
-                host->resume(dev);
-}
 static int omap_hsmmc_suspend(struct device *dev)
 {
        struct omap_hsmmc_host *host = dev_get_drvdata(dev);
@@ -2398,8 +2294,6 @@ static int omap_hsmmc_resume(struct device *dev)
 }
 #else
-#define omap_hsmmc_prepare      NULL
-#define omap_hsmmc_complete     NULL
 #define omap_hsmmc_suspend      NULL
 #define omap_hsmmc_resume       NULL
 #endif
@@ -2484,8 +2378,6 @@ static int omap_hsmmc_runtime_resume(struct device *dev)
 static struct dev_pm_ops omap_hsmmc_dev_pm_ops = {
        .suspend        = omap_hsmmc_suspend,
        .resume         = omap_hsmmc_resume,
-        .prepare        = omap_hsmmc_prepare,
-        .complete       = omap_hsmmc_complete,
        .runtime_suspend = omap_hsmmc_runtime_suspend,
        .runtime_resume = omap_hsmmc_runtime_resume,
 };
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index c70b602f8f1e..1d3d6c4bfdc6 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -28,6 +28,7 @@
 #include <linux/mmc/host.h>
 #include <linux/mmc/mmc.h>
 #include <linux/mmc/sd.h>
+#include <linux/mmc/sdio.h>
 #include <linux/mmc/card.h>
 #include <linux/mfd/rtsx_pci.h>
 #include <asm/unaligned.h>
@@ -53,9 +54,9 @@ struct realtek_pci_sdmmc {
 #define SDMMC_POWER_ON          1
 #define SDMMC_POWER_OFF         0
-        unsigned int            sg_count;
+        int                     sg_count;
        s32                     cookie;
-        unsigned int            cookie_sg_count;
+        int                     cookie_sg_count;
        bool                    using_cookie;
 };
@@ -71,30 +72,83 @@ static inline void sd_clear_error(struct realtek_pci_sdmmc *host)
 }
 #ifdef DEBUG
-static void sd_print_debug_regs(struct realtek_pci_sdmmc *host)
+static void dump_reg_range(struct realtek_pci_sdmmc *host, u16 start, u16 end)
 {
-        struct rtsx_pcr *pcr = host->pcr;
+        u16 len = end - start + 1;
-        u16 i;
+        int i;
-        u8 *ptr;
+        u8 data[8];
+        for (i = 0; i < len; i += 8) {
+                int j;
+                int n = min(8, len - i);
+                memset(&data, 0, sizeof(data));
+                for (j = 0; j < n; j++)
+                        rtsx_pci_read_register(host->pcr, start + i + j,
+                                data + j);
+                dev_dbg(sdmmc_dev(host), "0x%04X(%d): %8ph\n",
+                        start + i, n, data);
+        }
+}
-        /* Print SD host internal registers */
+static void sd_print_debug_regs(struct realtek_pci_sdmmc *host)
-        rtsx_pci_init_cmd(pcr);
+{
-        for (i = 0xFDA0; i <= 0xFDAE; i++)
+        dump_reg_range(host, 0xFDA0, 0xFDB3);
-                rtsx_pci_add_cmd(pcr, READ_REG_CMD, i, 0, 0);
+        dump_reg_range(host, 0xFD52, 0xFD69);
-        for (i = 0xFD52; i <= 0xFD69; i++)
-                rtsx_pci_add_cmd(pcr, READ_REG_CMD, i, 0, 0);
-        rtsx_pci_send_cmd(pcr, 100);
-        ptr = rtsx_pci_get_cmd_data(pcr);
-        for (i = 0xFDA0; i <= 0xFDAE; i++)
-                dev_dbg(sdmmc_dev(host), "0x%04X: 0x%02x\n", i, *(ptr++));
-        for (i = 0xFD52; i <= 0xFD69; i++)
-                dev_dbg(sdmmc_dev(host), "0x%04X: 0x%02x\n", i, *(ptr++));
 }
 #else
 #define sd_print_debug_regs(host)
 #endif /* DEBUG */
+static inline int sd_get_cd_int(struct realtek_pci_sdmmc *host)
+{
+        return rtsx_pci_readl(host->pcr, RTSX_BIPR) & SD_EXIST;
+}
+static void sd_cmd_set_sd_cmd(struct rtsx_pcr *pcr, struct mmc_command *cmd)
+{
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CMD0, 0xFF,
+                SD_CMD_START | cmd->opcode);
+        rtsx_pci_write_be32(pcr, SD_CMD1, cmd->arg);
+}
+static void sd_cmd_set_data_len(struct rtsx_pcr *pcr, u16 blocks, u16 blksz)
+{
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, blocks);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF, blocks >> 8);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, blksz);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF, blksz >> 8);
+}
+static int sd_response_type(struct mmc_command *cmd)
+{
+        switch (mmc_resp_type(cmd)) {
+        case MMC_RSP_NONE:
+                return SD_RSP_TYPE_R0;
+        case MMC_RSP_R1:
+                return SD_RSP_TYPE_R1;
+        case MMC_RSP_R1 & ~MMC_RSP_CRC:
+                return SD_RSP_TYPE_R1 | SD_NO_CHECK_CRC7;
+        case MMC_RSP_R1B:
+                return SD_RSP_TYPE_R1b;
+        case MMC_RSP_R2:
+                return SD_RSP_TYPE_R2;
+        case MMC_RSP_R3:
+                return SD_RSP_TYPE_R3;
+        default:
+                return -EINVAL;
+        }
+}
+static int sd_status_index(int resp_type)
+{
+        if (resp_type == SD_RSP_TYPE_R0)
+                return 0;
+        else if (resp_type == SD_RSP_TYPE_R2)
+                return 16;
+        return 5;
+}
 /*
 * sd_pre_dma_transfer - do dma_map_sg() or using cookie
 *
@@ -166,123 +220,6 @@ static void sdmmc_post_req(struct mmc_host *mmc, struct mmc_request *mrq,
        data->host_cookie = 0;
 }
-static int sd_read_data(struct realtek_pci_sdmmc *host, u8 *cmd, u16 byte_cnt,
-                u8 *buf, int buf_len, int timeout)
-{
-        struct rtsx_pcr *pcr = host->pcr;
-        int err, i;
-        u8 trans_mode;
-        dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD%d\n", __func__, cmd[0] - 0x40);
-        if (!buf)
-                buf_len = 0;
-        if ((cmd[0] & 0x3F) == MMC_SEND_TUNING_BLOCK)
-                trans_mode = SD_TM_AUTO_TUNING;
-        else
-                trans_mode = SD_TM_NORMAL_READ;
-        rtsx_pci_init_cmd(pcr);
-        for (i = 0; i < 5; i++)
-                rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CMD0 + i, 0xFF, cmd[i]);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, (u8)byte_cnt);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_H,
-                        0xFF, (u8)(byte_cnt >> 8));
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, 1);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF, 0);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF,
-                        SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
-                        SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 | SD_RSP_LEN_6);
-        if (trans_mode != SD_TM_AUTO_TUNING)
-                rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
-                                CARD_DATA_SOURCE, 0x01, PINGPONG_BUFFER);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_TRANSFER,
-                        0xFF, trans_mode | SD_TRANSFER_START);
-        rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, SD_TRANSFER,
-                        SD_TRANSFER_END, SD_TRANSFER_END);
-        err = rtsx_pci_send_cmd(pcr, timeout);
-        if (err < 0) {
-                sd_print_debug_regs(host);
-                dev_dbg(sdmmc_dev(host),
-                        "rtsx_pci_send_cmd fail (err = %d)\n", err);
-                return err;
-        }
-        if (buf && buf_len) {
-                err = rtsx_pci_read_ppbuf(pcr, buf, buf_len);
-                if (err < 0) {
-                        dev_dbg(sdmmc_dev(host),
-                                "rtsx_pci_read_ppbuf fail (err = %d)\n", err);
-                        return err;
-                }
-        }
-        return 0;
-}
-static int sd_write_data(struct realtek_pci_sdmmc *host, u8 *cmd, u16 byte_cnt,
-                u8 *buf, int buf_len, int timeout)
-{
-        struct rtsx_pcr *pcr = host->pcr;
-        int err, i;
-        u8 trans_mode;
-        if (!buf)
-                buf_len = 0;
-        if (buf && buf_len) {
-                err = rtsx_pci_write_ppbuf(pcr, buf, buf_len);
-                if (err < 0) {
-                        dev_dbg(sdmmc_dev(host),
-                                "rtsx_pci_write_ppbuf fail (err = %d)\n", err);
-                        return err;
-                }
-        }
-        trans_mode = cmd ? SD_TM_AUTO_WRITE_2 : SD_TM_AUTO_WRITE_3;
-        rtsx_pci_init_cmd(pcr);
-        if (cmd) {
-                dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d\n", __func__,
-                                cmd[0] - 0x40);
-                for (i = 0; i < 5; i++)
-                        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
-                                        SD_CMD0 + i, 0xFF, cmd[i]);
-        }
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, (u8)byte_cnt);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_H,
-                        0xFF, (u8)(byte_cnt >> 8));
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, 1);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF, 0);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF,
-                SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
-                SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 | SD_RSP_LEN_6);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
-                        trans_mode | SD_TRANSFER_START);
-        rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, SD_TRANSFER,
-                        SD_TRANSFER_END, SD_TRANSFER_END);
-        err = rtsx_pci_send_cmd(pcr, timeout);
-        if (err < 0) {
-                sd_print_debug_regs(host);
-                dev_dbg(sdmmc_dev(host),
-                        "rtsx_pci_send_cmd fail (err = %d)\n", err);
-                return err;
-        }
-        return 0;
-}
 static void sd_send_cmd_get_rsp(struct realtek_pci_sdmmc *host,
                struct mmc_command *cmd)
 {
@@ -293,47 +230,18 @@ static void sd_send_cmd_get_rsp(struct realtek_pci_sdmmc *host,
        int timeout = 100;
        int i;
        u8 *ptr;
-        int stat_idx = 0;
+        int rsp_type;
-        u8 rsp_type;
+        int stat_idx;
-        int rsp_len = 5;
        bool clock_toggled = false;
        dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",
                        __func__, cmd_idx, arg);
-        /* Response type:
+        rsp_type = sd_response_type(cmd);
-         * R0
+        if (rsp_type < 0)
-         * R1, R5, R6, R7
-         * R1b
-         * R2
-         * R3, R4
-         */
-        switch (mmc_resp_type(cmd)) {
-        case MMC_RSP_NONE:
-                rsp_type = SD_RSP_TYPE_R0;
-                rsp_len = 0;
-                break;
-        case MMC_RSP_R1:
-                rsp_type = SD_RSP_TYPE_R1;
-                break;
-        case MMC_RSP_R1 & ~MMC_RSP_CRC:
-                rsp_type = SD_RSP_TYPE_R1 | SD_NO_CHECK_CRC7;
-                break;
-        case MMC_RSP_R1B:
-                rsp_type = SD_RSP_TYPE_R1b;
-                break;
-        case MMC_RSP_R2:
-                rsp_type = SD_RSP_TYPE_R2;
-                rsp_len = 16;
-                break;
-        case MMC_RSP_R3:
-                rsp_type = SD_RSP_TYPE_R3;
-                break;
-        default:
-                dev_dbg(sdmmc_dev(host), "cmd->flag is not valid\n");
-                err = -EINVAL;
                goto out;
-        }
+        stat_idx = sd_status_index(rsp_type);
        if (rsp_type == SD_RSP_TYPE_R1b)
                timeout = 3000;
@@ -348,13 +256,7 @@ static void sd_send_cmd_get_rsp(struct realtek_pci_sdmmc *host,
        }
        rtsx_pci_init_cmd(pcr);
+        sd_cmd_set_sd_cmd(pcr, cmd);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CMD0, 0xFF, 0x40 | cmd_idx);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CMD1, 0xFF, (u8)(arg >> 24));
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CMD2, 0xFF, (u8)(arg >> 16));
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CMD3, 0xFF, (u8)(arg >> 8));
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CMD4, 0xFF, (u8)arg);
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF, rsp_type);
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DATA_SOURCE,
                        0x01, PINGPONG_BUFFER);
@@ -368,12 +270,10 @@ static void sd_send_cmd_get_rsp(struct realtek_pci_sdmmc *host,
                /* Read data from ping-pong buffer */
                for (i = PPBUF_BASE2; i < PPBUF_BASE2 + 16; i++)
                        rtsx_pci_add_cmd(pcr, READ_REG_CMD, (u16)i, 0, 0);
-                stat_idx = 16;
        } else if (rsp_type != SD_RSP_TYPE_R0) {
                /* Read data from SD_CMDx registers */
                for (i = SD_CMD0; i <= SD_CMD4; i++)
                        rtsx_pci_add_cmd(pcr, READ_REG_CMD, (u16)i, 0, 0);
-                stat_idx = 5;
        }
        rtsx_pci_add_cmd(pcr, READ_REG_CMD, SD_STAT1, 0, 0);
@@ -438,71 +338,213 @@ out:
                                SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP, 0);
 }
-static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq)
+static int sd_read_data(struct realtek_pci_sdmmc *host, struct mmc_command *cmd,
+        u16 byte_cnt, u8 *buf, int buf_len, int timeout)
+{
+        struct rtsx_pcr *pcr = host->pcr;
+        int err;
+        u8 trans_mode;
+        dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",
+                __func__, cmd->opcode, cmd->arg);
+        if (!buf)
+                buf_len = 0;
+        if (cmd->opcode == MMC_SEND_TUNING_BLOCK)
+                trans_mode = SD_TM_AUTO_TUNING;
+        else
+                trans_mode = SD_TM_NORMAL_READ;
+        rtsx_pci_init_cmd(pcr);
+        sd_cmd_set_sd_cmd(pcr, cmd);
+        sd_cmd_set_data_len(pcr, 1, byte_cnt);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF,
+                        SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
+                        SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 | SD_RSP_LEN_6);
+        if (trans_mode != SD_TM_AUTO_TUNING)
+                rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
+                                CARD_DATA_SOURCE, 0x01, PINGPONG_BUFFER);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_TRANSFER,
+                        0xFF, trans_mode | SD_TRANSFER_START);
+        rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, SD_TRANSFER,
+                        SD_TRANSFER_END, SD_TRANSFER_END);
+        err = rtsx_pci_send_cmd(pcr, timeout);
+        if (err < 0) {
+                sd_print_debug_regs(host);
+                dev_dbg(sdmmc_dev(host),
+                        "rtsx_pci_send_cmd fail (err = %d)\n", err);
+                return err;
+        }
+        if (buf && buf_len) {
+                err = rtsx_pci_read_ppbuf(pcr, buf, buf_len);
+                if (err < 0) {
+                        dev_dbg(sdmmc_dev(host),
+                                "rtsx_pci_read_ppbuf fail (err = %d)\n", err);
+                        return err;
+                }
+        }
+        return 0;
+}
+static int sd_write_data(struct realtek_pci_sdmmc *host,
+        struct mmc_command *cmd, u16 byte_cnt, u8 *buf, int buf_len,
+        int timeout)
+{
+        struct rtsx_pcr *pcr = host->pcr;
+        int err;
+        dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",
+                __func__, cmd->opcode, cmd->arg);
+        if (!buf)
+                buf_len = 0;
+        sd_send_cmd_get_rsp(host, cmd);
+        if (cmd->error)
+                return cmd->error;
+        if (buf && buf_len) {
+                err = rtsx_pci_write_ppbuf(pcr, buf, buf_len);
+                if (err < 0) {
+                        dev_dbg(sdmmc_dev(host),
+                                "rtsx_pci_write_ppbuf fail (err = %d)\n", err);
+                        return err;
+                }
+        }
+        rtsx_pci_init_cmd(pcr);
+        sd_cmd_set_data_len(pcr, 1, byte_cnt);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF,
+                SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
+                SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 | SD_RSP_LEN_0);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
+                        SD_TRANSFER_START | SD_TM_AUTO_WRITE_3);
+        rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, SD_TRANSFER,
+                        SD_TRANSFER_END, SD_TRANSFER_END);
+        err = rtsx_pci_send_cmd(pcr, timeout);
+        if (err < 0) {
+                sd_print_debug_regs(host);
+                dev_dbg(sdmmc_dev(host),
+                        "rtsx_pci_send_cmd fail (err = %d)\n", err);
+                return err;
+        }
+        return 0;
+}
+static int sd_read_long_data(struct realtek_pci_sdmmc *host,
+        struct mmc_request *mrq)
 {
        struct rtsx_pcr *pcr = host->pcr;
        struct mmc_host *mmc = host->mmc;
        struct mmc_card *card = mmc->card;
+        struct mmc_command *cmd = mrq->cmd;
        struct mmc_data *data = mrq->data;
        int uhs = mmc_card_uhs(card);
-        int read = (data->flags & MMC_DATA_READ) ? 1 : 0;
+        u8 cfg2 = 0;
-        u8 cfg2, trans_mode;
        int err;
+        int resp_type;
        size_t data_len = data->blksz * data->blocks;
-        if (read) {
+        dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",
-                cfg2 = SD_CALCULATE_CRC7 | SD_CHECK_CRC16 |
+                __func__, cmd->opcode, cmd->arg);
-                        SD_NO_WAIT_BUSY_END | SD_CHECK_CRC7 | SD_RSP_LEN_0;
-                trans_mode = SD_TM_AUTO_READ_3;
+        resp_type = sd_response_type(cmd);
-        } else {
+        if (resp_type < 0)
-                cfg2 = SD_NO_CALCULATE_CRC7 | SD_CHECK_CRC16 |
+                return resp_type;
-                        SD_NO_WAIT_BUSY_END | SD_NO_CHECK_CRC7 | SD_RSP_LEN_0;
-                trans_mode = SD_TM_AUTO_WRITE_3;
-        }
        if (!uhs)
                cfg2 |= SD_NO_CHECK_WAIT_CRC_TO;
        rtsx_pci_init_cmd(pcr);
+        sd_cmd_set_sd_cmd(pcr, cmd);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0x00);
+        sd_cmd_set_data_len(pcr, data->blocks, data->blksz);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF, 0x02);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_L,
-                        0xFF, (u8)data->blocks);
-        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_H,
-                        0xFF, (u8)(data->blocks >> 8));
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, IRQSTAT0,
                        DMA_DONE_INT, DMA_DONE_INT);
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC3,
-                        0xFF, (u8)(data_len >> 24));
+                0xFF, (u8)(data_len >> 24));
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC2,
-                        0xFF, (u8)(data_len >> 16));
+                0xFF, (u8)(data_len >> 16));
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC1,
-                        0xFF, (u8)(data_len >> 8));
+                0xFF, (u8)(data_len >> 8));
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC0, 0xFF, (u8)data_len);
-        if (read) {
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMACTL,
-                rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMACTL,
+                0x03 | DMA_PACK_SIZE_MASK,
-                                0x03 | DMA_PACK_SIZE_MASK,
+                DMA_DIR_FROM_CARD | DMA_EN | DMA_512);
-                                DMA_DIR_FROM_CARD | DMA_EN | DMA_512);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DATA_SOURCE,
-        } else {
+                        0x01, RING_BUFFER);
-                rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMACTL,
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF, cfg2 | resp_type);
-                                0x03 | DMA_PACK_SIZE_MASK,
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
-                                DMA_DIR_TO_CARD | DMA_EN | DMA_512);
+                        SD_TRANSFER_START | SD_TM_AUTO_READ_2);
+        rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, SD_TRANSFER,
+                        SD_TRANSFER_END, SD_TRANSFER_END);
+        rtsx_pci_send_cmd_no_wait(pcr);
+        err = rtsx_pci_dma_transfer(pcr, data->sg, host->sg_count, 1, 10000);
+        if (err < 0) {
+                sd_print_debug_regs(host);
+                sd_clear_error(host);
+                return err;
        }
+        return 0;
+}
+static int sd_write_long_data(struct realtek_pci_sdmmc *host,
+        struct mmc_request *mrq)
+{
+        struct rtsx_pcr *pcr = host->pcr;
+        struct mmc_host *mmc = host->mmc;
+        struct mmc_card *card = mmc->card;
+        struct mmc_command *cmd = mrq->cmd;
+        struct mmc_data *data = mrq->data;
+        int uhs = mmc_card_uhs(card);
+        u8 cfg2;
+        int err;
+        size_t data_len = data->blksz * data->blocks;
+        sd_send_cmd_get_rsp(host, cmd);
+        if (cmd->error)
+                return cmd->error;
+        dev_dbg(sdmmc_dev(host), "%s: SD/MMC CMD %d, arg = 0x%08x\n",
+                __func__, cmd->opcode, cmd->arg);
+        cfg2 = SD_NO_CALCULATE_CRC7 | SD_CHECK_CRC16 |
+                SD_NO_WAIT_BUSY_END | SD_NO_CHECK_CRC7 | SD_RSP_LEN_0;
+        if (!uhs)
+                cfg2 |= SD_NO_CHECK_WAIT_CRC_TO;
+        rtsx_pci_init_cmd(pcr);
+        sd_cmd_set_data_len(pcr, data->blocks, data->blksz);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, IRQSTAT0,
+                        DMA_DONE_INT, DMA_DONE_INT);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC3,
+                0xFF, (u8)(data_len >> 24));
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC2,
+                0xFF, (u8)(data_len >> 16));
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC1,
+                0xFF, (u8)(data_len >> 8));
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC0, 0xFF, (u8)data_len);
+        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMACTL,
+                0x03 | DMA_PACK_SIZE_MASK,
+                DMA_DIR_TO_CARD | DMA_EN | DMA_512);
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DATA_SOURCE,
                        0x01, RING_BUFFER);
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF, cfg2);
        rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
-                        trans_mode | SD_TRANSFER_START);
+                        SD_TRANSFER_START | SD_TM_AUTO_WRITE_3);
        rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, SD_TRANSFER,
                        SD_TRANSFER_END, SD_TRANSFER_END);
        rtsx_pci_send_cmd_no_wait(pcr);
+        err = rtsx_pci_dma_transfer(pcr, data->sg, host->sg_count, 0, 10000);
-        err = rtsx_pci_dma_transfer(pcr, data->sg, host->sg_count, read, 10000);
        if (err < 0) {
                sd_clear_error(host);
                return err;
@@ -511,6 +553,23 @@ static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq)
        return 0;
 }
+static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq)
+{
+        struct mmc_data *data = mrq->data;
+        if (host->sg_count < 0) {
+                data->error = host->sg_count;
+                dev_dbg(sdmmc_dev(host), "%s: sg_count = %d is invalid\n",
+                        __func__, host->sg_count);
+                return data->error;
+        }
+        if (data->flags & MMC_DATA_READ)
+                return sd_read_long_data(host, mrq);
+        return sd_write_long_data(host, mrq);
+}
 static inline void sd_enable_initial_mode(struct realtek_pci_sdmmc *host)
 {
        rtsx_pci_write_register(host->pcr, SD_CFG1,
@@ -528,10 +587,7 @@ static void sd_normal_rw(struct realtek_pci_sdmmc *host,
 {
        struct mmc_command *cmd = mrq->cmd;
        struct mmc_data *data = mrq->data;
-        u8 _cmd[5], *buf;
+        u8 *buf;
-        _cmd[0] = 0x40 | (u8)cmd->opcode;
-        put_unaligned_be32(cmd->arg, (u32 *)(&_cmd[1]));
        buf = kzalloc(data->blksz, GFP_NOIO);
        if (!buf) {
@@ -543,7 +599,7 @@ static void sd_normal_rw(struct realtek_pci_sdmmc *host,
                if (host->initial_mode)
                        sd_disable_initial_mode(host);
-                cmd->error = sd_read_data(host, _cmd, (u16)data->blksz, buf,
+                cmd->error = sd_read_data(host, cmd, (u16)data->blksz, buf,
                                data->blksz, 200);
                if (host->initial_mode)
@@ -553,7 +609,7 @@ static void sd_normal_rw(struct realtek_pci_sdmmc *host,
        } else {
                sg_copy_to_buffer(data->sg, data->sg_len, buf, data->blksz);
-                cmd->error = sd_write_data(host, _cmd, (u16)data->blksz, buf,
+                cmd->error = sd_write_data(host, cmd, (u16)data->blksz, buf,
                                data->blksz, 200);
        }
@@ -653,14 +709,14 @@ static int sd_tuning_rx_cmd(struct realtek_pci_sdmmc *host,
                u8 opcode, u8 sample_point)
 {
        int err;
-        u8 cmd[5] = {0};
+        struct mmc_command cmd = {0};
        err = sd_change_phase(host, sample_point, true);
        if (err < 0)
                return err;
-        cmd[0] = 0x40 | opcode;
+        cmd.opcode = opcode;
-        err = sd_read_data(host, cmd, 0x40, NULL, 0, 100);
+        err = sd_read_data(host, &cmd, 0x40, NULL, 0, 100);
        if (err < 0) {
                /* Wait till SD DATA IDLE */
                sd_wait_data_idle(host);
@@ -727,6 +783,12 @@ static int sd_tuning_rx(struct realtek_pci_sdmmc *host, u8 opcode)
        return 0;
 }
+static inline int sdio_extblock_cmd(struct mmc_command *cmd,
+        struct mmc_data *data)
+{
+        return (cmd->opcode == SD_IO_RW_EXTENDED) && (data->blksz == 512);
+}
 static inline int sd_rw_cmd(struct mmc_command *cmd)
 {
        return mmc_op_multi(cmd->opcode) ||
@@ -748,7 +810,7 @@ static void sd_request(struct work_struct *work)
        unsigned int data_size = 0;
        int err;
-        if (host->eject) {
+        if (host->eject || !sd_get_cd_int(host)) {
                cmd->error = -ENOMEDIUM;
                goto finish;
        }
@@ -776,17 +838,15 @@ static void sd_request(struct work_struct *work)
        if (mrq->data)
                data_size = data->blocks * data->blksz;
-        if (!data_size || sd_rw_cmd(cmd)) {
+        if (!data_size) {
                sd_send_cmd_get_rsp(host, cmd);
+        } else if (sd_rw_cmd(cmd) || sdio_extblock_cmd(cmd, data)) {
+                cmd->error = sd_rw_multi(host, mrq);
+                if (!host->using_cookie)
+                        sdmmc_post_req(host->mmc, host->mrq, 0);
-                if (!cmd->error && data_size) {
+                if (mmc_op_multi(cmd->opcode) && mrq->stop)
-                        sd_rw_multi(host, mrq);
+                        sd_send_cmd_get_rsp(host, mrq->stop);
-                        if (!host->using_cookie)
-                                sdmmc_post_req(host->mmc, host->mrq, 0);
-                        if (mmc_op_multi(cmd->opcode) && mrq->stop)
-                                sd_send_cmd_get_rsp(host, mrq->stop);
-                }
        } else {
                sd_normal_rw(host, mrq);
        }
@@ -801,8 +861,10 @@ static void sd_request(struct work_struct *work)
        mutex_unlock(&pcr->pcr_mutex);
 finish:
-        if (cmd->error)
+        if (cmd->error) {
-                dev_dbg(sdmmc_dev(host), "cmd->error = %d\n", cmd->error);
+                dev_dbg(sdmmc_dev(host), "CMD %d 0x%08x error(%d)\n",
+                        cmd->opcode, cmd->arg, cmd->error);
+        }
        mutex_lock(&host->host_mutex);
        host->mrq = NULL;
@@ -820,7 +882,7 @@ static void sdmmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
        host->mrq = mrq;
        mutex_unlock(&host->host_mutex);
-        if (sd_rw_cmd(mrq->cmd))
+        if (sd_rw_cmd(mrq->cmd) || sdio_extblock_cmd(mrq->cmd, data))
                host->using_cookie = sd_pre_dma_transfer(host, data, false);
        queue_work(host->workq, &host->work);
@@ -1066,7 +1128,7 @@ static int sdmmc_get_cd(struct mmc_host *mmc)
        u32 val;
        if (host->eject)
-                return -ENOMEDIUM;
+                return cd;
        mutex_lock(&pcr->pcr_mutex);
@@ -1317,6 +1379,7 @@ static void rtsx_pci_sdmmc_card_event(struct platform_device *pdev)
 {
        struct realtek_pci_sdmmc *host = platform_get_drvdata(pdev);
+        host->cookie = -1;
        mmc_detect_change(host->mmc, 0);
 }
@@ -1349,6 +1412,7 @@ static int rtsx_pci_sdmmc_drv_probe(struct platform_device *pdev)
        host->pcr = pcr;
        host->mmc = mmc;
        host->pdev = pdev;
+        host->cookie = -1;
        host->power_state = SDMMC_POWER_OFF;
        INIT_WORK(&host->work, sd_request);
        platform_set_drvdata(pdev, host);
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 970314e0aac8..a45ed39d062c 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -158,7 +158,7 @@ static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev,
        host = c->host;
-        /* Platform specific code during emmc proble slot goes here */
+        /* Platform specific code during emmc probe slot goes here */
        if (hid && uid && !strcmp(hid, "80860F14") && !strcmp(uid, "1") &&
            sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 &&
@@ -179,7 +179,7 @@ static int sdhci_acpi_sdio_probe_slot(struct platform_device *pdev,
        host = c->host;
-        /* Platform specific code during emmc proble slot goes here */
+        /* Platform specific code during sdio probe slot goes here */
        return 0;
 }
@@ -195,7 +195,7 @@ static int sdhci_acpi_sd_probe_slot(struct platform_device *pdev,
        host = c->host;
-        /* Platform specific code during emmc proble slot goes here */
+        /* Platform specific code during sd probe slot goes here */
        return 0;
 }
@@ -448,18 +448,13 @@ static int sdhci_acpi_runtime_resume(struct device *dev)
        return sdhci_runtime_resume_host(c->host);
 }
-static int sdhci_acpi_runtime_idle(struct device *dev)
-{
-        return 0;
-}
 #endif
 static const struct dev_pm_ops sdhci_acpi_pm_ops = {
        .suspend                = sdhci_acpi_suspend,
        .resume                 = sdhci_acpi_resume,
        SET_RUNTIME_PM_OPS(sdhci_acpi_runtime_suspend,
-                        sdhci_acpi_runtime_resume, sdhci_acpi_runtime_idle)
+                        sdhci_acpi_runtime_resume, NULL)
 };
 static struct platform_driver sdhci_acpi_driver = {
diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c
index e7e4fbdcbfe0..34bb8f92586e 100644
--- a/drivers/mmc/host/sdhci-bcm-kona.c
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -254,7 +254,9 @@ static int sdhci_bcm_kona_probe(struct platform_device *pdev)
        kona_dev = sdhci_pltfm_priv(pltfm_priv);
        mutex_init(&kona_dev->write_lock);
-        mmc_of_parse(host->mmc);
+        ret = mmc_of_parse(host->mmc);
+        if (ret)
+                goto err_pltfm_free;
        if (!host->mmc->f_max) {
                dev_err(&pdev->dev, "Missing max-freq for SDHCI cfg\n");
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index af1f7c0f9545..10ef8244a239 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1080,10 +1080,10 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
                goto disable_clk;
        pm_runtime_set_active(&pdev->dev);
-        pm_runtime_enable(&pdev->dev);
        pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
        pm_runtime_use_autosuspend(&pdev->dev);
        pm_suspend_ignore_children(&pdev->dev, 1);
+        pm_runtime_enable(&pdev->dev);
        return 0;
@@ -1103,16 +1103,15 @@ static int sdhci_esdhc_imx_remove(struct platform_device *pdev)
        struct pltfm_imx_data *imx_data = pltfm_host->priv;
        int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
-        sdhci_remove_host(host, dead);
+        pm_runtime_get_sync(&pdev->dev);
-        pm_runtime_dont_use_autosuspend(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
+        pm_runtime_put_noidle(&pdev->dev);
-        if (!IS_ENABLED(CONFIG_PM)) {
+        sdhci_remove_host(host, dead);
-                clk_disable_unprepare(imx_data->clk_per);
-                clk_disable_unprepare(imx_data->clk_ipg);
+        clk_disable_unprepare(imx_data->clk_per);
-                clk_disable_unprepare(imx_data->clk_ahb);
+        clk_disable_unprepare(imx_data->clk_ipg);
-        }
+        clk_disable_unprepare(imx_data->clk_ahb);
        sdhci_pltfm_free(pdev);
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 8872c85c63d4..17fe02ed6672 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -276,6 +276,14 @@ static void esdhc_pltfm_set_bus_width(struct sdhci_host *host, int width)
                        ESDHC_CTRL_BUSWIDTH_MASK, ctrl);
 }
+static void esdhc_reset(struct sdhci_host *host, u8 mask)
+{
+        sdhci_reset(host, mask);
+        sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
+        sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
+}
 static const struct sdhci_ops sdhci_esdhc_ops = {
        .read_l = esdhc_readl,
        .read_w = esdhc_readw,
@@ -290,7 +298,7 @@ static const struct sdhci_ops sdhci_esdhc_ops = {
        .platform_init = esdhc_of_platform_init,
        .adma_workaround = esdhci_of_adma_workaround,
        .set_bus_width = esdhc_pltfm_set_bus_width,
-        .reset = sdhci_reset,
+        .reset = esdhc_reset,
        .set_uhs_signaling = sdhci_set_uhs_signaling,
 };
@@ -362,13 +370,19 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
        }
        /* call to generic mmc_of_parse to support additional capabilities */
-        mmc_of_parse(host->mmc);
+        ret = mmc_of_parse(host->mmc);
+        if (ret)
+                goto err;
        mmc_of_parse_voltage(np, &host->ocr_mask);
        ret = sdhci_add_host(host);
        if (ret)
-                sdhci_pltfm_free(pdev);
+                goto err;
+        return 0;
+ err:
+        sdhci_pltfm_free(pdev);
        return ret;
 }
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 4f38554ce679..29eaff78238e 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -1367,11 +1367,6 @@ static int sdhci_pci_runtime_resume(struct device *dev)
        return 0;
 }
-static int sdhci_pci_runtime_idle(struct device *dev)
-{
-        return 0;
-}
 #else /* CONFIG_PM */
 #define sdhci_pci_suspend NULL
@@ -1383,7 +1378,7 @@ static const struct dev_pm_ops sdhci_pci_pm_ops = {
        .suspend = sdhci_pci_suspend,
        .resume = sdhci_pci_resume,
        SET_RUNTIME_PM_OPS(sdhci_pci_runtime_suspend,
-                        sdhci_pci_runtime_resume, sdhci_pci_runtime_idle)
+                        sdhci_pci_runtime_resume, NULL)
 };
 /*****************************************************************************\
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index ca3424e7ef71..b5103a247bc1 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -62,6 +62,7 @@ struct sdhci_pxa {
        struct clk *clk_core;
        struct clk *clk_io;
        u8      power_mode;
+        void __iomem *sdio3_conf_reg;
 };
 /*
@@ -72,6 +73,14 @@ struct sdhci_pxa {
 #define SDHCI_WINDOW_BASE(i)    (0x84 + ((i) << 3))
 #define SDHCI_MAX_WIN_NUM       8
+/*
+ * Fields below belong to SDIO3 Configuration Register (third register
+ * region for the Armada 38x flavor)
+ */
+#define SDIO3_CONF_CLK_INV      BIT(0)
+#define SDIO3_CONF_SD_FB_CLK    BIT(2)
 static int mv_conf_mbus_windows(struct platform_device *pdev,
                                const struct mbus_dram_target_info *dram)
 {
@@ -118,6 +127,51 @@ static int mv_conf_mbus_windows(struct platform_device *pdev,
        return 0;
 }
+static int armada_38x_quirks(struct platform_device *pdev,
+                             struct sdhci_host *host)
+{
+        struct device_node *np = pdev->dev.of_node;
+        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+        struct sdhci_pxa *pxa = pltfm_host->priv;
+        struct resource *res;
+        host->quirks |= SDHCI_QUIRK_MISSING_CAPS;
+        res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+                                           "conf-sdio3");
+        if (res) {
+                pxa->sdio3_conf_reg = devm_ioremap_resource(&pdev->dev, res);
+                if (IS_ERR(pxa->sdio3_conf_reg))
+                        return PTR_ERR(pxa->sdio3_conf_reg);
+        } else {
+                /*
+                 * According to erratum 'FE-2946959' both SDR50 and DDR50
+                 * modes require specific clock adjustments in SDIO3
+                 * Configuration register, if the adjustment is not done,
+                 * remove them from the capabilities.
+                 */
+                host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
+                host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_DDR50);
+                dev_warn(&pdev->dev, "conf-sdio3 register not found: disabling SDR50 and DDR50 modes.\nConsider updating your dtb\n");
+        }
+        /*
+         * According to erratum 'ERR-7878951' Armada 38x SDHCI
+         * controller has different capabilities than the ones shown
+         * in its registers
+         */
+        host->caps = sdhci_readl(host, SDHCI_CAPABILITIES);
+        if (of_property_read_bool(np, "no-1-8-v")) {
+                host->caps &= ~SDHCI_CAN_VDD_180;
+                host->mmc->caps &= ~MMC_CAP_1_8V_DDR;
+        } else {
+                host->caps &= ~SDHCI_CAN_VDD_330;
+        }
+        host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_USE_SDR50_TUNING);
+        return 0;
+}
 static void pxav3_reset(struct sdhci_host *host, u8 mask)
 {
        struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc));
@@ -194,6 +248,8 @@ static void pxav3_gen_init_74_clocks(struct sdhci_host *host, u8 power_mode)
 static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
 {
+        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+        struct sdhci_pxa *pxa = pltfm_host->priv;
        u16 ctrl_2;
        /*
@@ -223,6 +279,24 @@ static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
                break;
        }
+        /*
+         * Update SDIO3 Configuration register according to erratum
+         * FE-2946959
+         */
+        if (pxa->sdio3_conf_reg) {
+                u8 reg_val  = readb(pxa->sdio3_conf_reg);
+                if (uhs == MMC_TIMING_UHS_SDR50 ||
+                    uhs == MMC_TIMING_UHS_DDR50) {
+                        reg_val &= ~SDIO3_CONF_CLK_INV;
+                        reg_val |= SDIO3_CONF_SD_FB_CLK;
+                } else {
+                        reg_val |= SDIO3_CONF_CLK_INV;
+                        reg_val &= ~SDIO3_CONF_SD_FB_CLK;
+                }
+                writeb(reg_val, pxa->sdio3_conf_reg);
+        }
        sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
        dev_dbg(mmc_dev(host->mmc),
                "%s uhs = %d, ctrl_2 = %04X\n",
@@ -268,8 +342,8 @@ static struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev)
        if (!pdata)
                return NULL;
-        of_property_read_u32(np, "mrvl,clk-delay-cycles", &clk_delay_cycles);
+        if (!of_property_read_u32(np, "mrvl,clk-delay-cycles",
-        if (clk_delay_cycles > 0)
+                                  &clk_delay_cycles))
                pdata->clk_delay_cycles = clk_delay_cycles;
        return pdata;
@@ -318,15 +392,18 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
        if (!IS_ERR(pxa->clk_core))
                clk_prepare_enable(pxa->clk_core);
+        /* enable 1/8V DDR capable */
+        host->mmc->caps |= MMC_CAP_1_8V_DDR;
        if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) {
+                ret = armada_38x_quirks(pdev, host);
+                if (ret < 0)
+                        goto err_clk_get;
                ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info());
                if (ret < 0)
                        goto err_mbus_win;
        }
-        /* enable 1/8V DDR capable */
-        host->mmc->caps |= MMC_CAP_1_8V_DDR;
        match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev);
        if (match) {
                ret = mmc_of_parse(host->mmc);
@@ -365,10 +442,11 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
                }
        }
-        pm_runtime_enable(&pdev->dev);
+        pm_runtime_get_noresume(&pdev->dev);
-        pm_runtime_get_sync(&pdev->dev);
+        pm_runtime_set_active(&pdev->dev);
        pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS);
        pm_runtime_use_autosuspend(&pdev->dev);
+        pm_runtime_enable(&pdev->dev);
        pm_suspend_ignore_children(&pdev->dev, 1);
        ret = sdhci_add_host(host);
@@ -391,14 +469,13 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
        return 0;
 err_add_host:
-        pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
+        pm_runtime_put_noidle(&pdev->dev);
 err_of_parse:
 err_cd_req:
 err_mbus_win:
        clk_disable_unprepare(pxa->clk_io);
-        if (!IS_ERR(pxa->clk_core))
+        clk_disable_unprepare(pxa->clk_core);
-                clk_disable_unprepare(pxa->clk_core);
 err_clk_get:
        sdhci_pltfm_free(pdev);
        return ret;
@@ -411,12 +488,13 @@ static int sdhci_pxav3_remove(struct platform_device *pdev)
        struct sdhci_pxa *pxa = pltfm_host->priv;
        pm_runtime_get_sync(&pdev->dev);
-        sdhci_remove_host(host, 1);
        pm_runtime_disable(&pdev->dev);
+        pm_runtime_put_noidle(&pdev->dev);
+        sdhci_remove_host(host, 1);
        clk_disable_unprepare(pxa->clk_io);
-        if (!IS_ERR(pxa->clk_core))
+        clk_disable_unprepare(pxa->clk_core);
-                clk_disable_unprepare(pxa->clk_core);
        sdhci_pltfm_free(pdev);
@@ -457,11 +535,11 @@ static int sdhci_pxav3_runtime_suspend(struct device *dev)
        struct sdhci_host *host = dev_get_drvdata(dev);
        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
        struct sdhci_pxa *pxa = pltfm_host->priv;
-        unsigned long flags;
+        int ret;
-        spin_lock_irqsave(&host->lock, flags);
+        ret = sdhci_runtime_suspend_host(host);
-        host->runtime_suspended = true;
+        if (ret)
-        spin_unlock_irqrestore(&host->lock, flags);
+                return ret;
        clk_disable_unprepare(pxa->clk_io);
        if (!IS_ERR(pxa->clk_core))
@@ -475,17 +553,12 @@ static int sdhci_pxav3_runtime_resume(struct device *dev)
        struct sdhci_host *host = dev_get_drvdata(dev);
        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
        struct sdhci_pxa *pxa = pltfm_host->priv;
-        unsigned long flags;
        clk_prepare_enable(pxa->clk_io);
        if (!IS_ERR(pxa->clk_core))
                clk_prepare_enable(pxa->clk_core);
-        spin_lock_irqsave(&host->lock, flags);
+        return sdhci_runtime_resume_host(host);
-        host->runtime_suspended = false;
-        spin_unlock_irqrestore(&host->lock, flags);
-        return 0;
 }
 #endif
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index c45b8932d843..c6d2dd7317c1 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -12,6 +12,7 @@
 * published by the Free Software Foundation.
 */
+#include <linux/spinlock.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
@@ -312,7 +313,14 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock)
        sdhci_s3c_set_clock(host, clock);
+        /* Reset SD Clock Enable */
+        clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
+        clk &= ~SDHCI_CLOCK_CARD_EN;
+        sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
+        spin_unlock_irq(&host->lock);
        ret = clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock);
+        spin_lock_irq(&host->lock);
        if (ret != 0) {
                dev_err(dev, "%s: failed to set clock rate %uHz\n",
                        mmc_hostname(host->mmc), clock);
@@ -607,7 +615,9 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
        pm_runtime_use_autosuspend(&pdev->dev);
        pm_suspend_ignore_children(&pdev->dev, 1);
-        mmc_of_parse(host->mmc);
+        ret = mmc_of_parse(host->mmc);
+        if (ret)
+                goto err_req_regs;
        ret = sdhci_add_host(host);
        if (ret) {
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
index dd29d47c07aa..f6f82ec3618d 100644
--- a/drivers/mmc/host/sdhci-sirf.c
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -15,7 +15,9 @@
 #include <linux/mmc/slot-gpio.h>
 #include "sdhci-pltfm.h"
+#define SDHCI_CLK_DELAY_SETTING 0x4C
 #define SDHCI_SIRF_8BITBUS BIT(3)
+#define SIRF_TUNING_COUNT 128
 struct sdhci_sirf_priv {
        struct clk *clk;
@@ -49,7 +51,76 @@ static void sdhci_sirf_set_bus_width(struct sdhci_host *host, int width)
        sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
 }
+static int sdhci_sirf_execute_tuning(struct sdhci_host *host, u32 opcode)
+{
+        int tuning_seq_cnt = 3;
+        u8 phase, tuned_phases[SIRF_TUNING_COUNT];
+        u8 tuned_phase_cnt = 0;
+        int rc, longest_range = 0;
+        int start = -1, end = 0, tuning_value = -1, range = 0;
+        u16 clock_setting;
+        struct mmc_host *mmc = host->mmc;
+        clock_setting = sdhci_readw(host, SDHCI_CLK_DELAY_SETTING);
+        clock_setting &= ~0x3fff;
+retry:
+        phase = 0;
+        do {
+                sdhci_writel(host,
+                        clock_setting | phase | (phase << 7) | (phase << 16),
+                        SDHCI_CLK_DELAY_SETTING);
+                if (!mmc_send_tuning(mmc)) {
+                        /* Tuning is successful at this tuning point */
+                        tuned_phases[tuned_phase_cnt++] = phase;
+                        dev_dbg(mmc_dev(mmc), "%s: Found good phase = %d\n",
+                                 mmc_hostname(mmc), phase);
+                        if (start == -1)
+                                start = phase;
+                        end = phase;
+                        range++;
+                        if (phase == (SIRF_TUNING_COUNT - 1)
+                                && range > longest_range)
+                                tuning_value = (start + end) / 2;
+                } else {
+                        dev_dbg(mmc_dev(mmc), "%s: Found bad phase = %d\n",
+                                 mmc_hostname(mmc), phase);
+                        if (range > longest_range) {
+                                tuning_value = (start + end) / 2;
+                                longest_range = range;
+                        }
+                        start = -1;
+                        end = range = 0;
+                }
+        } while (++phase < ARRAY_SIZE(tuned_phases));
+        if (tuned_phase_cnt && tuning_value > 0) {
+                /*
+                 * Finally set the selected phase in delay
+                 * line hw block.
+                 */
+                phase = tuning_value;
+                sdhci_writel(host,
+                        clock_setting | phase | (phase << 7) | (phase << 16),
+                        SDHCI_CLK_DELAY_SETTING);
+                dev_dbg(mmc_dev(mmc), "%s: Setting the tuning phase to %d\n",
+                         mmc_hostname(mmc), phase);
+        } else {
+                if (--tuning_seq_cnt)
+                        goto retry;
+                /* Tuning failed */
+                dev_dbg(mmc_dev(mmc), "%s: No tuning point found\n",
+                       mmc_hostname(mmc));
+                rc = -EIO;
+        }
+        return rc;
+}
 static struct sdhci_ops sdhci_sirf_ops = {
+        .platform_execute_tuning = sdhci_sirf_execute_tuning,
        .set_clock = sdhci_set_clock,
        .get_max_clock  = sdhci_sirf_get_max_clk,
        .set_bus_width = sdhci_sirf_set_bus_width,
@@ -138,9 +209,6 @@ static int sdhci_sirf_remove(struct platform_device *pdev)
        sdhci_pltfm_unregister(pdev);
-        if (gpio_is_valid(priv->gpio_cd))
-                mmc_gpio_free_cd(host->mmc);
        clk_disable_unprepare(priv->clk);
        return 0;
 }
diff --git a/drivers/mmc/host/sdhci-st.c b/drivers/mmc/host/sdhci-st.c
index 328f348c7243..882b07e9667e 100644
--- a/drivers/mmc/host/sdhci-st.c
+++ b/drivers/mmc/host/sdhci-st.c
@@ -78,10 +78,9 @@ static int sdhci_st_probe(struct platform_device *pdev)
        }
        ret = mmc_of_parse(host->mmc);
        if (ret) {
                dev_err(&pdev->dev, "Failed mmc_of_parse\n");
-                return ret;
+                goto err_of;
        }
        clk_prepare_enable(clk);
@@ -108,6 +107,7 @@ static int sdhci_st_probe(struct platform_device *pdev)
 err_out:
        clk_disable_unprepare(clk);
+err_of:
        sdhci_pltfm_free(pdev);
        return ret;
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 59797106af93..f3778d58d1cd 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -41,6 +41,7 @@
 #define NVQUIRK_DISABLE_SDR50           BIT(3)
 #define NVQUIRK_DISABLE_SDR104          BIT(4)
 #define NVQUIRK_DISABLE_DDR50           BIT(5)
+#define NVQUIRK_SHADOW_XFER_MODE_REG    BIT(6)
 struct sdhci_tegra_soc_data {
        const struct sdhci_pltfm_data *pdata;
@@ -67,6 +68,31 @@ static u16 tegra_sdhci_readw(struct sdhci_host *host, int reg)
        return readw(host->ioaddr + reg);
 }
+static void tegra_sdhci_writew(struct sdhci_host *host, u16 val, int reg)
+{
+        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+        struct sdhci_tegra *tegra_host = pltfm_host->priv;
+        const struct sdhci_tegra_soc_data *soc_data = tegra_host->soc_data;
+        if (soc_data->nvquirks & NVQUIRK_SHADOW_XFER_MODE_REG) {
+                switch (reg) {
+                case SDHCI_TRANSFER_MODE:
+                        /*
+                         * Postpone this write, we must do it together with a
+                         * command write that is down below.
+                         */
+                        pltfm_host->xfer_mode_shadow = val;
+                        return;
+                case SDHCI_COMMAND:
+                        writel((val << 16) | pltfm_host->xfer_mode_shadow,
+                                host->ioaddr + SDHCI_TRANSFER_MODE);
+                        return;
+                }
+        }
+        writew(val, host->ioaddr + reg);
+}
 static void tegra_sdhci_writel(struct sdhci_host *host, u32 val, int reg)
 {
        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -147,6 +173,7 @@ static void tegra_sdhci_set_bus_width(struct sdhci_host *host, int bus_width)
 static const struct sdhci_ops tegra_sdhci_ops = {
        .get_ro     = tegra_sdhci_get_ro,
        .read_w     = tegra_sdhci_readw,
+        .write_w    = tegra_sdhci_writew,
        .write_l    = tegra_sdhci_writel,
        .set_clock  = sdhci_set_clock,
        .set_bus_width = tegra_sdhci_set_bus_width,
@@ -201,7 +228,8 @@ static struct sdhci_tegra_soc_data soc_data_tegra114 = {
        .pdata = &sdhci_tegra114_pdata,
        .nvquirks = NVQUIRK_DISABLE_SDR50 |
                    NVQUIRK_DISABLE_DDR50 |
-                    NVQUIRK_DISABLE_SDR104,
+                    NVQUIRK_DISABLE_SDR104 |
+                    NVQUIRK_SHADOW_XFER_MODE_REG,
 };
 static const struct of_device_id sdhci_tegra_dt_match[] = {
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index f1a488ee432f..0ad412a4876f 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -53,6 +53,9 @@ static void sdhci_finish_command(struct sdhci_host *);
 static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
 static void sdhci_tuning_timer(unsigned long data);
 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
+static int sdhci_pre_dma_transfer(struct sdhci_host *host,
+                                        struct mmc_data *data,
+                                        struct sdhci_host_next *next);
 #ifdef CONFIG_PM
 static int sdhci_runtime_pm_get(struct sdhci_host *host);
@@ -505,9 +508,8 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
                goto fail;
        BUG_ON(host->align_addr & host->align_mask);
-        host->sg_count = dma_map_sg(mmc_dev(host->mmc),
+        host->sg_count = sdhci_pre_dma_transfer(host, data, NULL);
-                data->sg, data->sg_len, direction);
+        if (host->sg_count < 0)
-        if (host->sg_count == 0)
                goto unmap_align;
        desc = host->adma_table;
@@ -531,8 +533,6 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
                if (offset) {
                        if (data->flags & MMC_DATA_WRITE) {
                                buffer = sdhci_kmap_atomic(sg, &flags);
-                                WARN_ON(((long)buffer & (PAGE_SIZE - 1)) >
-                                        (PAGE_SIZE - offset));
                                memcpy(align, buffer, offset);
                                sdhci_kunmap_atomic(buffer, &flags);
                        }
@@ -639,8 +639,6 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
                                       (sg_dma_address(sg) & host->align_mask);
                                buffer = sdhci_kmap_atomic(sg, &flags);
-                                WARN_ON(((long)buffer & (PAGE_SIZE - 1)) >
-                                        (PAGE_SIZE - size));
                                memcpy(buffer, align, size);
                                sdhci_kunmap_atomic(buffer, &flags);
@@ -649,8 +647,9 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
                }
        }
-        dma_unmap_sg(mmc_dev(host->mmc), data->sg,
+        if (!data->host_cookie)
-                data->sg_len, direction);
+                dma_unmap_sg(mmc_dev(host->mmc), data->sg,
+                        data->sg_len, direction);
 }
 static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd)
@@ -846,11 +845,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
                } else {
                        int sg_cnt;
-                        sg_cnt = dma_map_sg(mmc_dev(host->mmc),
+                        sg_cnt = sdhci_pre_dma_transfer(host, data, NULL);
-                                        data->sg, data->sg_len,
-                                        (data->flags & MMC_DATA_READ) ?
-                                                DMA_FROM_DEVICE :
-                                                DMA_TO_DEVICE);
                        if (sg_cnt == 0) {
                                /*
                                 * This only happens when someone fed
@@ -909,7 +904,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
 static void sdhci_set_transfer_mode(struct sdhci_host *host,
        struct mmc_command *cmd)
 {
-        u16 mode;
+        u16 mode = 0;
        struct mmc_data *data = cmd->data;
        if (data == NULL) {
@@ -927,9 +922,11 @@ static void sdhci_set_transfer_mode(struct sdhci_host *host,
        WARN_ON(!host->data);
-        mode = SDHCI_TRNS_BLK_CNT_EN;
+        if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE))
+                mode = SDHCI_TRNS_BLK_CNT_EN;
        if (mmc_op_multi(cmd->opcode) || data->blocks > 1) {
-                mode |= SDHCI_TRNS_MULTI;
+                mode = SDHCI_TRNS_BLK_CNT_EN | SDHCI_TRNS_MULTI;
                /*
                 * If we are sending CMD23, CMD12 never gets sent
                 * on successful completion (so no Auto-CMD12).
@@ -963,8 +960,10 @@ static void sdhci_finish_data(struct sdhci_host *host)
                if (host->flags & SDHCI_USE_ADMA)
                        sdhci_adma_table_post(host, data);
                else {
-                        dma_unmap_sg(mmc_dev(host->mmc), data->sg,
+                        if (!data->host_cookie)
-                                data->sg_len, (data->flags & MMC_DATA_READ) ?
+                                dma_unmap_sg(mmc_dev(host->mmc),
+                                        data->sg, data->sg_len,
+                                        (data->flags & MMC_DATA_READ) ?
                                        DMA_FROM_DEVICE : DMA_TO_DEVICE);
                }
        }
@@ -1630,7 +1629,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
         * signalling timeout and CRC errors even on CMD0. Resetting
         * it on each ios seems to solve the problem.
         */
-        if(host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS)
+        if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS)
                sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
        mmiowb();
@@ -1832,6 +1831,10 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
                ctrl |= SDHCI_CTRL_VDD_180;
                sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
+                /* Some controller need to do more when switching */
+                if (host->ops->voltage_switch)
+                        host->ops->voltage_switch(host);
                /* 1.8V regulator output should be stable within 5 ms */
                ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
                if (ctrl & SDHCI_CTRL_VDD_180)
@@ -1960,6 +1963,8 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
        ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
        ctrl |= SDHCI_CTRL_EXEC_TUNING;
+        if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND)
+                ctrl |= SDHCI_CTRL_TUNED_CLK;
        sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
        /*
@@ -2129,6 +2134,77 @@ static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable)
        }
 }
+static void sdhci_post_req(struct mmc_host *mmc, struct mmc_request *mrq,
+                                int err)
+{
+        struct sdhci_host *host = mmc_priv(mmc);
+        struct mmc_data *data = mrq->data;
+        if (host->flags & SDHCI_REQ_USE_DMA) {
+                if (data->host_cookie)
+                        dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
+                                         data->flags & MMC_DATA_WRITE ?
+                                         DMA_TO_DEVICE : DMA_FROM_DEVICE);
+                mrq->data->host_cookie = 0;
+        }
+}
+static int sdhci_pre_dma_transfer(struct sdhci_host *host,
+                                       struct mmc_data *data,
+                                       struct sdhci_host_next *next)
+{
+        int sg_count;
+        if (!next && data->host_cookie &&
+            data->host_cookie != host->next_data.cookie) {
+                pr_debug(DRIVER_NAME "[%s] invalid cookie: %d, next-cookie %d\n",
+                        __func__, data->host_cookie, host->next_data.cookie);
+                data->host_cookie = 0;
+        }
+        /* Check if next job is already prepared */
+        if (next ||
+            (!next && data->host_cookie != host->next_data.cookie)) {
+                sg_count = dma_map_sg(mmc_dev(host->mmc), data->sg,
+                                     data->sg_len,
+                                     data->flags & MMC_DATA_WRITE ?
+                                     DMA_TO_DEVICE : DMA_FROM_DEVICE);
+        } else {
+                sg_count = host->next_data.sg_count;
+                host->next_data.sg_count = 0;
+        }
+        if (sg_count == 0)
+                return -EINVAL;
+        if (next) {
+                next->sg_count = sg_count;
+                data->host_cookie = ++next->cookie < 0 ? 1 : next->cookie;
+        } else
+                host->sg_count = sg_count;
+        return sg_count;
+}
+static void sdhci_pre_req(struct mmc_host *mmc, struct mmc_request *mrq,
+                               bool is_first_req)
+{
+        struct sdhci_host *host = mmc_priv(mmc);
+        if (mrq->data->host_cookie) {
+                mrq->data->host_cookie = 0;
+                return;
+        }
+        if (host->flags & SDHCI_REQ_USE_DMA)
+                if (sdhci_pre_dma_transfer(host,
+                                        mrq->data,
+                                        &host->next_data) < 0)
+                        mrq->data->host_cookie = 0;
+}
 static void sdhci_card_event(struct mmc_host *mmc)
 {
        struct sdhci_host *host = mmc_priv(mmc);
@@ -2162,6 +2238,8 @@ static void sdhci_card_event(struct mmc_host *mmc)
 static const struct mmc_host_ops sdhci_ops = {
        .request        = sdhci_request,
+        .post_req       = sdhci_post_req,
+        .pre_req        = sdhci_pre_req,
        .set_ios        = sdhci_set_ios,
        .get_cd         = sdhci_get_cd,
        .get_ro         = sdhci_get_ro,
@@ -2793,9 +2871,9 @@ int sdhci_runtime_resume_host(struct sdhci_host *host)
        /* Force clock and power re-program */
        host->pwr = 0;
        host->clock = 0;
+        sdhci_do_start_signal_voltage_switch(host, &host->mmc->ios);
        sdhci_do_set_ios(host, &host->mmc->ios);
-        sdhci_do_start_signal_voltage_switch(host, &host->mmc->ios);
        if ((host_flags & SDHCI_PV_ENABLED) &&
                !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) {
                spin_lock_irqsave(&host->lock, flags);
@@ -3019,6 +3097,7 @@ int sdhci_add_host(struct sdhci_host *host)
                host->max_clk = host->ops->get_max_clock(host);
        }
+        host->next_data.cookie = 1;
        /*
         * In case of Host Controller v3.00, find out whether clock
         * multiplier is supported.
@@ -3338,9 +3417,9 @@ int sdhci_add_host(struct sdhci_host *host)
        setup_timer(&host->timer, sdhci_timeout_timer, (unsigned long)host);
-        if (host->version >= SDHCI_SPEC_300) {
+        init_waitqueue_head(&host->buf_ready_int);
-                init_waitqueue_head(&host->buf_ready_int);
+        if (host->version >= SDHCI_SPEC_300) {
                /* Initialize re-tuning timer */
                init_timer(&host->tuning_timer);
                host->tuning_timer.data = (unsigned long)host;
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 41a2c34299ed..0315e1844330 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -339,6 +339,7 @@ struct sdhci_ops {
        void    (*adma_workaround)(struct sdhci_host *host, u32 intmask);
        void    (*platform_init)(struct sdhci_host *host);
        void    (*card_event)(struct sdhci_host *host);
+        void    (*voltage_switch)(struct sdhci_host *host);
 };
 #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
new file mode 100644
index 000000000000..2fe8b91481b3
--- /dev/null
+++ b/drivers/mmc/host/sdhci_f_sdh30.c
@@ -0,0 +1,237 @@
+/*
+ * linux/drivers/mmc/host/sdhci_f_sdh30.c
+ *
+ * Copyright (C) 2013 - 2015 Fujitsu Semiconductor, Ltd
+ *              Vincent Yang <vincent.yang@tw.fujitsu.com>
+ * Copyright (C) 2015 Linaro Ltd  Andy Green <andy.green@linaro.org>
+ *
+ * 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, version 2 of the License.
+ */
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include "sdhci-pltfm.h"
+/* F_SDH30 extended Controller registers */
+#define F_SDH30_AHB_CONFIG              0x100
+#define  F_SDH30_AHB_BIGED              0x00000040
+#define  F_SDH30_BUSLOCK_DMA            0x00000020
+#define  F_SDH30_BUSLOCK_EN             0x00000010
+#define  F_SDH30_SIN                    0x00000008
+#define  F_SDH30_AHB_INCR_16            0x00000004
+#define  F_SDH30_AHB_INCR_8             0x00000002
+#define  F_SDH30_AHB_INCR_4             0x00000001
+#define F_SDH30_TUNING_SETTING          0x108
+#define  F_SDH30_CMD_CHK_DIS            0x00010000
+#define F_SDH30_IO_CONTROL2             0x114
+#define  F_SDH30_CRES_O_DN              0x00080000
+#define  F_SDH30_MSEL_O_1_8             0x00040000
+#define F_SDH30_ESD_CONTROL             0x124
+#define  F_SDH30_EMMC_RST               0x00000002
+#define  F_SDH30_EMMC_HS200             0x01000000
+#define F_SDH30_CMD_DAT_DELAY           0x200
+#define F_SDH30_MIN_CLOCK               400000
+struct f_sdhost_priv {
+        struct clk *clk_iface;
+        struct clk *clk;
+        u32 vendor_hs200;
+        struct device *dev;
+};
+void sdhci_f_sdh30_soft_voltage_switch(struct sdhci_host *host)
+{
+        struct f_sdhost_priv *priv = sdhci_priv(host);
+        u32 ctrl = 0;
+        usleep_range(2500, 3000);
+        ctrl = sdhci_readl(host, F_SDH30_IO_CONTROL2);
+        ctrl |= F_SDH30_CRES_O_DN;
+        sdhci_writel(host, ctrl, F_SDH30_IO_CONTROL2);
+        ctrl |= F_SDH30_MSEL_O_1_8;
+        sdhci_writel(host, ctrl, F_SDH30_IO_CONTROL2);
+        ctrl &= ~F_SDH30_CRES_O_DN;
+        sdhci_writel(host, ctrl, F_SDH30_IO_CONTROL2);
+        usleep_range(2500, 3000);
+        if (priv->vendor_hs200) {
+                dev_info(priv->dev, "%s: setting hs200\n", __func__);
+                ctrl = sdhci_readl(host, F_SDH30_ESD_CONTROL);
+                ctrl |= priv->vendor_hs200;
+                sdhci_writel(host, ctrl, F_SDH30_ESD_CONTROL);
+        }
+        ctrl = sdhci_readl(host, F_SDH30_TUNING_SETTING);
+        ctrl |= F_SDH30_CMD_CHK_DIS;
+        sdhci_writel(host, ctrl, F_SDH30_TUNING_SETTING);
+}
+unsigned int sdhci_f_sdh30_get_min_clock(struct sdhci_host *host)
+{
+        return F_SDH30_MIN_CLOCK;
+}
+void sdhci_f_sdh30_reset(struct sdhci_host *host, u8 mask)
+{
+        if (sdhci_readw(host, SDHCI_CLOCK_CONTROL) == 0)
+                sdhci_writew(host, 0xBC01, SDHCI_CLOCK_CONTROL);
+        sdhci_reset(host, mask);
+}
+static const struct sdhci_ops sdhci_f_sdh30_ops = {
+        .voltage_switch = sdhci_f_sdh30_soft_voltage_switch,
+        .get_min_clock = sdhci_f_sdh30_get_min_clock,
+        .reset = sdhci_f_sdh30_reset,
+        .set_clock = sdhci_set_clock,
+        .set_bus_width = sdhci_set_bus_width,
+        .set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+static int sdhci_f_sdh30_probe(struct platform_device *pdev)
+{
+        struct sdhci_host *host;
+        struct device *dev = &pdev->dev;
+        struct resource *res;
+        int irq, ctrl = 0, ret = 0;
+        struct f_sdhost_priv *priv;
+        u32 reg = 0;
+        irq = platform_get_irq(pdev, 0);
+        if (irq < 0) {
+                dev_err(dev, "%s: no irq specified\n", __func__);
+                return irq;
+        }
+        host = sdhci_alloc_host(dev, sizeof(struct sdhci_host) +
+                                                sizeof(struct f_sdhost_priv));
+        if (IS_ERR(host))
+                return PTR_ERR(host);
+        priv = sdhci_priv(host);
+        priv->dev = dev;
+        host->quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
+                       SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
+        host->quirks2 = SDHCI_QUIRK2_SUPPORT_SINGLE |
+                        SDHCI_QUIRK2_TUNING_WORK_AROUND;
+        ret = mmc_of_parse(host->mmc);
+        if (ret)
+                goto err;
+        platform_set_drvdata(pdev, host);
+        sdhci_get_of_property(pdev);
+        host->hw_name = "f_sdh30";
+        host->ops = &sdhci_f_sdh30_ops;
+        host->irq = irq;
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        host->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(host->ioaddr)) {
+                ret = PTR_ERR(host->ioaddr);
+                goto err;
+        }
+        priv->clk_iface = devm_clk_get(&pdev->dev, "iface");
+        if (IS_ERR(priv->clk_iface)) {
+                ret = PTR_ERR(priv->clk_iface);
+                goto err;
+        }
+        ret = clk_prepare_enable(priv->clk_iface);
+        if (ret)
+                goto err;
+        priv->clk = devm_clk_get(&pdev->dev, "core");
+        if (IS_ERR(priv->clk)) {
+                ret = PTR_ERR(priv->clk);
+                goto err_clk;
+        }
+        ret = clk_prepare_enable(priv->clk);
+        if (ret)
+                goto err_clk;
+        /* init vendor specific regs */
+        ctrl = sdhci_readw(host, F_SDH30_AHB_CONFIG);
+        ctrl |= F_SDH30_SIN | F_SDH30_AHB_INCR_16 | F_SDH30_AHB_INCR_8 |
+                F_SDH30_AHB_INCR_4;
+        ctrl &= ~(F_SDH30_AHB_BIGED | F_SDH30_BUSLOCK_EN);
+        sdhci_writew(host, ctrl, F_SDH30_AHB_CONFIG);
+        reg = sdhci_readl(host, F_SDH30_ESD_CONTROL);
+        sdhci_writel(host, reg & ~F_SDH30_EMMC_RST, F_SDH30_ESD_CONTROL);
+        msleep(20);
+        sdhci_writel(host, reg | F_SDH30_EMMC_RST, F_SDH30_ESD_CONTROL);
+        reg = sdhci_readl(host, SDHCI_CAPABILITIES);
+        if (reg & SDHCI_CAN_DO_8BIT)
+                priv->vendor_hs200 = F_SDH30_EMMC_HS200;
+        ret = sdhci_add_host(host);
+        if (ret)
+                goto err_add_host;
+        return 0;
+err_add_host:
+        clk_disable_unprepare(priv->clk);
+err_clk:
+        clk_disable_unprepare(priv->clk_iface);
+err:
+        sdhci_free_host(host);
+        return ret;
+}
+static int sdhci_f_sdh30_remove(struct platform_device *pdev)
+{
+        struct sdhci_host *host = platform_get_drvdata(pdev);
+        struct f_sdhost_priv *priv = sdhci_priv(host);
+        sdhci_remove_host(host, readl(host->ioaddr + SDHCI_INT_STATUS) ==
+                          0xffffffff);
+        clk_disable_unprepare(priv->clk_iface);
+        clk_disable_unprepare(priv->clk);
+        sdhci_free_host(host);
+        platform_set_drvdata(pdev, NULL);
+        return 0;
+}
+static const struct of_device_id f_sdh30_dt_ids[] = {
+        { .compatible = "fujitsu,mb86s70-sdhci-3.0" },
+        { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, f_sdh30_dt_ids);
+static struct platform_driver sdhci_f_sdh30_driver = {
+        .driver = {
+                .name = "f_sdh30",
+                .of_match_table = f_sdh30_dt_ids,
+                .pm     = SDHCI_PLTFM_PMOPS,
+        },
+        .probe  = sdhci_f_sdh30_probe,
+        .remove = sdhci_f_sdh30_remove,
+};
+module_platform_driver(sdhci_f_sdh30_driver);
+MODULE_DESCRIPTION("F_SDH30 SD Card Controller driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("FUJITSU SEMICONDUCTOR LTD.");
+MODULE_ALIAS("platform:f_sdh30");
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 00c8ebdf8ec7..6906a905cd54 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -35,10 +35,13 @@
 #define EXT_ACC           0xe4
+#define host_to_priv(host) container_of((host)->pdata, struct sh_mobile_sdhi, mmc_data)
 struct sh_mobile_sdhi_of_data {
        unsigned long tmio_flags;
        unsigned long capabilities;
        unsigned long capabilities2;
+        enum dma_slave_buswidth dma_buswidth;
        dma_addr_t dma_rx_offset;
 };
@@ -58,6 +61,7 @@ static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = {
        .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
                          TMIO_MMC_CLK_ACTUAL,
        .capabilities   = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
+        .dma_buswidth   = DMA_SLAVE_BUSWIDTH_4_BYTES,
        .dma_rx_offset  = 0x2000,
 };
@@ -84,16 +88,43 @@ struct sh_mobile_sdhi {
        struct tmio_mmc_dma dma_priv;
 };
+static void sh_mobile_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width)
+{
+        u32 val;
+        /*
+         * see also
+         *      sh_mobile_sdhi_of_data :: dma_buswidth
+         */
+        switch (sd_ctrl_read16(host, CTL_VERSION)) {
+        case 0x490C:
+                val = (width == 32) ? 0x0001 : 0x0000;
+                break;
+        case 0xCB0D:
+                val = (width == 32) ? 0x0000 : 0x0001;
+                break;
+        default:
+                /* nothing to do */
+                return;
+        }
+        sd_ctrl_write16(host, EXT_ACC, val);
+}
 static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int *f)
 {
        struct mmc_host *mmc = platform_get_drvdata(pdev);
        struct tmio_mmc_host *host = mmc_priv(mmc);
-        struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
+        struct sh_mobile_sdhi *priv = host_to_priv(host);
        int ret = clk_prepare_enable(priv->clk);
        if (ret < 0)
                return ret;
        *f = clk_get_rate(priv->clk);
+        /* enable 16bit data access on SDBUF as default */
+        sh_mobile_sdhi_sdbuf_width(host, 16);
        return 0;
 }
@@ -101,7 +132,7 @@ static void sh_mobile_sdhi_clk_disable(struct platform_device *pdev)
 {
        struct mmc_host *mmc = platform_get_drvdata(pdev);
        struct tmio_mmc_host *host = mmc_priv(mmc);
-        struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
+        struct sh_mobile_sdhi *priv = host_to_priv(host);
        clk_disable_unprepare(priv->clk);
 }
@@ -113,7 +144,7 @@ static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host)
                udelay(1);
        if (!timeout) {
-                dev_warn(host->pdata->dev, "timeout waiting for SD bus idle\n");
+                dev_warn(&host->pdev->dev, "timeout waiting for SD bus idle\n");
                return -EBUSY;
        }
@@ -156,14 +187,13 @@ static int sh_mobile_sdhi_multi_io_quirk(struct mmc_card *card,
        return blk_size;
 }
-static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev)
+static void sh_mobile_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable)
 {
-        mmc_detect_change(platform_get_drvdata(pdev), msecs_to_jiffies(100));
+        sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
-}
-static const struct sh_mobile_sdhi_ops sdhi_ops = {
+        /* enable 32bit access if DMA mode if possibile */
-        .cd_wakeup = sh_mobile_sdhi_cd_wakeup,
+        sh_mobile_sdhi_sdbuf_width(host, enable ? 32 : 16);
-};
+}
 static int sh_mobile_sdhi_probe(struct platform_device *pdev)
 {
@@ -177,7 +207,6 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
        int irq, ret, i = 0;
        bool multiplexed_isr = true;
        struct tmio_mmc_dma *dma_priv;
-        u16 ver;
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res)
@@ -192,26 +221,31 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
        mmc_data = &priv->mmc_data;
        dma_priv = &priv->dma_priv;
-        if (p) {
-                if (p->init) {
-                        ret = p->init(pdev, &sdhi_ops);
-                        if (ret)
-                                return ret;
-                }
-        }
        priv->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(priv->clk)) {
                ret = PTR_ERR(priv->clk);
                dev_err(&pdev->dev, "cannot get clock: %d\n", ret);
-                goto eclkget;
+                goto eprobe;
        }
-        mmc_data->clk_enable = sh_mobile_sdhi_clk_enable;
+        host = tmio_mmc_host_alloc(pdev);
-        mmc_data->clk_disable = sh_mobile_sdhi_clk_disable;
+        if (!host) {
+                ret = -ENOMEM;
+                goto eprobe;
+        }
+        host->dma               = dma_priv;
+        host->write16_hook      = sh_mobile_sdhi_write16_hook;
+        host->clk_enable        = sh_mobile_sdhi_clk_enable;
+        host->clk_disable       = sh_mobile_sdhi_clk_disable;
+        host->multi_io_quirk    = sh_mobile_sdhi_multi_io_quirk;
+        /* SD control register space size is 0x100, 0x200 for bus_shift=1 */
+        if (resource_size(res) > 0x100)
+                host->bus_shift = 1;
+        else
+                host->bus_shift = 0;
        mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED;
-        mmc_data->write16_hook = sh_mobile_sdhi_write16_hook;
-        mmc_data->multi_io_quirk = sh_mobile_sdhi_multi_io_quirk;
        if (p) {
                mmc_data->flags = p->tmio_flags;
                mmc_data->ocr_mask = p->tmio_ocr_mask;
@@ -231,11 +265,10 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
                        dma_priv->slave_id_rx = p->dma_slave_rx;
                }
        }
-        dma_priv->alignment_shift = 1; /* 2-byte alignment */
        dma_priv->filter = shdma_chan_filter;
+        dma_priv->enable = sh_mobile_sdhi_enable_dma;
-        mmc_data->dma = dma_priv;
+        mmc_data->alignment_shift = 1; /* 2-byte alignment */
        /*
         * All SDHI blocks support 2-byte and larger block sizes in 4-bit
@@ -258,33 +291,18 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
         */
        mmc_data->flags |= TMIO_MMC_SDIO_STATUS_QUIRK;
-        /*
-         * All SDHI have DMA control register
-         */
-        mmc_data->flags |= TMIO_MMC_HAVE_CTL_DMA_REG;
        if (of_id && of_id->data) {
                const struct sh_mobile_sdhi_of_data *of_data = of_id->data;
                mmc_data->flags |= of_data->tmio_flags;
                mmc_data->capabilities |= of_data->capabilities;
                mmc_data->capabilities2 |= of_data->capabilities2;
-                dma_priv->dma_rx_offset = of_data->dma_rx_offset;
+                mmc_data->dma_rx_offset = of_data->dma_rx_offset;
+                dma_priv->dma_buswidth = of_data->dma_buswidth;
        }
-        /* SD control register space size is 0x100, 0x200 for bus_shift=1 */
+        ret = tmio_mmc_host_probe(host, mmc_data);
-        mmc_data->bus_shift = resource_size(res) >> 9;
-        ret = tmio_mmc_host_probe(&host, pdev, mmc_data);
        if (ret < 0)
-                goto eprobe;
+                goto efree;
-        /*
-         * FIXME:
-         * this Workaround can be more clever method
-         */
-        ver = sd_ctrl_read16(host, CTL_VERSION);
-        if (ver == 0xCB0D)
-                sd_ctrl_write16(host, EXT_ACC, 1);
        /*
         * Allow one or more specific (named) ISRs or
@@ -351,10 +369,9 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
 eirq:
        tmio_mmc_host_remove(host);
+efree:
+        tmio_mmc_host_free(host);
 eprobe:
-eclkget:
-        if (p && p->cleanup)
-                p->cleanup(pdev);
        return ret;
 }
@@ -362,13 +379,9 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
 {
        struct mmc_host *mmc = platform_get_drvdata(pdev);
        struct tmio_mmc_host *host = mmc_priv(mmc);
-        struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
        tmio_mmc_host_remove(host);
-        if (p && p->cleanup)
-                p->cleanup(pdev);
        return 0;
 }
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 15cb8b7ffc34..6af0a28ba37d 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -252,7 +252,7 @@ static int sunxi_mmc_reset_host(struct sunxi_mmc_host *host)
        unsigned long expire = jiffies + msecs_to_jiffies(250);
        u32 rval;
-        mmc_writel(host, REG_CMDR, SDXC_HARDWARE_RESET);
+        mmc_writel(host, REG_GCTRL, SDXC_HARDWARE_RESET);
        do {
                rval = mmc_readl(host, REG_GCTRL);
        } while (time_before(jiffies, expire) && (rval & SDXC_HARDWARE_RESET));
@@ -310,7 +310,9 @@ static void sunxi_mmc_init_idma_des(struct sunxi_mmc_host *host,
        }
        pdes[0].config |= SDXC_IDMAC_DES0_FD;
-        pdes[i - 1].config = SDXC_IDMAC_DES0_OWN | SDXC_IDMAC_DES0_LD;
+        pdes[i - 1].config |= SDXC_IDMAC_DES0_LD | SDXC_IDMAC_DES0_ER;
+        pdes[i - 1].config &= ~SDXC_IDMAC_DES0_DIC;
+        pdes[i - 1].buf_addr_ptr2 = 0;
        /*
         * Avoid the io-store starting the idmac hitting io-mem before the
@@ -570,6 +572,15 @@ static irqreturn_t sunxi_mmc_handle_manual_stop(int irq, void *dev_id)
        }
        dev_err(mmc_dev(host->mmc), "data error, sending stop command\n");
+        /*
+         * We will never have more than one outstanding request,
+         * and we do not complete the request until after
+         * we've cleared host->manual_stop_mrq so we do not need to
+         * spin lock this function.
+         * Additionally we have wait states within this function
+         * so having it in a lock is a very bad idea.
+         */
        sunxi_mmc_send_manual_stop(host, mrq);
        spin_lock_irqsave(&host->lock, iflags);
@@ -616,7 +627,7 @@ static int sunxi_mmc_oclk_onoff(struct sunxi_mmc_host *host, u32 oclk_en)
 static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
                                  struct mmc_ios *ios)
 {
-        u32 rate, oclk_dly, rval, sclk_dly, src_clk;
+        u32 rate, oclk_dly, rval, sclk_dly;
        int ret;
        rate = clk_round_rate(host->clk_mmc, ios->clock);
@@ -661,14 +672,6 @@ static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
                sclk_dly = 4;
        }
-        src_clk = clk_get_rate(clk_get_parent(host->clk_mmc));
-        if (src_clk >= 300000000 && src_clk <= 400000000) {
-                if (oclk_dly)
-                        oclk_dly--;
-                if (sclk_dly)
-                        sclk_dly--;
-        }
        clk_sunxi_mmc_phase_control(host->clk_mmc, sclk_dly, oclk_dly);
        return sunxi_mmc_oclk_onoff(host, 1);
@@ -766,6 +769,7 @@ static void sunxi_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
        unsigned long iflags;
        u32 imask = SDXC_INTERRUPT_ERROR_BIT;
        u32 cmd_val = SDXC_START | (cmd->opcode & 0x3f);
+        bool wait_dma = host->wait_dma;
        int ret;
        /* Check for set_ios errors (should never happen) */
@@ -816,7 +820,7 @@ static void sunxi_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
                        if (cmd->data->flags & MMC_DATA_WRITE)
                                cmd_val |= SDXC_WRITE;
                        else
-                                host->wait_dma = true;
+                                wait_dma = true;
                } else {
                        imask |= SDXC_COMMAND_DONE;
                }
@@ -850,6 +854,7 @@ static void sunxi_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
        }
        host->mrq = mrq;
+        host->wait_dma = wait_dma;
        mmc_writel(host, REG_IMASK, host->sdio_imask | imask);
        mmc_writel(host, REG_CARG, cmd->arg);
        mmc_writel(host, REG_CMDR, cmd_val);
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 2ca0afaab792..f746df493892 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -88,14 +88,19 @@ static int tmio_mmc_probe(struct platform_device *pdev)
        if (!res)
                return -EINVAL;
-        /* SD control register space size is 0x200, 0x400 for bus_shift=1 */
-        pdata->bus_shift = resource_size(res) >> 10;
        pdata->flags |= TMIO_MMC_HAVE_HIGH_REG;
-        ret = tmio_mmc_host_probe(&host, pdev, pdata);
+        host = tmio_mmc_host_alloc(pdev);
-        if (ret)
+        if (!host)
                goto cell_disable;
+        /* SD control register space size is 0x200, 0x400 for bus_shift=1 */
+        host->bus_shift = resource_size(res) >> 10;
+        ret = tmio_mmc_host_probe(host, pdata);
+        if (ret)
+                goto host_free;
        ret = request_irq(irq, tmio_mmc_irq, IRQF_TRIGGER_FALLING,
                                dev_name(&pdev->dev), host);
        if (ret)
@@ -108,6 +113,8 @@ static int tmio_mmc_probe(struct platform_device *pdev)
 host_remove:
        tmio_mmc_host_remove(host);
+host_free:
+        tmio_mmc_host_free(host);
 cell_disable:
        if (cell->disable)
                cell->disable(pdev);
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index a34ecbe1c1ad..fc3805ed69d1 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -16,6 +16,7 @@
 #ifndef TMIO_MMC_H
 #define TMIO_MMC_H
+#include <linux/dmaengine.h>
 #include <linux/highmem.h>
 #include <linux/mmc/tmio.h>
 #include <linux/mutex.h>
@@ -39,6 +40,17 @@
 #define TMIO_MASK_IRQ     (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
 struct tmio_mmc_data;
+struct tmio_mmc_host;
+struct tmio_mmc_dma {
+        void *chan_priv_tx;
+        void *chan_priv_rx;
+        int slave_id_tx;
+        int slave_id_rx;
+        enum dma_slave_buswidth dma_buswidth;
+        bool (*filter)(struct dma_chan *chan, void *arg);
+        void (*enable)(struct tmio_mmc_host *host, bool enable);
+};
 struct tmio_mmc_host {
        void __iomem *ctl;
@@ -56,9 +68,11 @@ struct tmio_mmc_host {
        struct scatterlist      *sg_orig;
        unsigned int            sg_len;
        unsigned int            sg_off;
+        unsigned long           bus_shift;
        struct platform_device *pdev;
        struct tmio_mmc_data *pdata;
+        struct tmio_mmc_dma     *dma;
        /* DMA support */
        bool                    force_pio;
@@ -83,10 +97,17 @@ struct tmio_mmc_host {
        struct mutex            ios_lock;       /* protect set_ios() context */
        bool                    native_hotplug;
        bool                    sdio_irq_enabled;
+        int (*write16_hook)(struct tmio_mmc_host *host, int addr);
+        int (*clk_enable)(struct platform_device *pdev, unsigned int *f);
+        void (*clk_disable)(struct platform_device *pdev);
+        int (*multi_io_quirk)(struct mmc_card *card,
+                              unsigned int direction, int blk_size);
 };
-int tmio_mmc_host_probe(struct tmio_mmc_host **host,
+struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev);
-                        struct platform_device *pdev,
+void tmio_mmc_host_free(struct tmio_mmc_host *host);
+int tmio_mmc_host_probe(struct tmio_mmc_host *host,
                        struct tmio_mmc_data *pdata);
 void tmio_mmc_host_remove(struct tmio_mmc_host *host);
 void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
@@ -151,19 +172,19 @@ int tmio_mmc_host_runtime_resume(struct device *dev);
 static inline u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr)
 {
-        return readw(host->ctl + (addr << host->pdata->bus_shift));
+        return readw(host->ctl + (addr << host->bus_shift));
 }
 static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,
                u16 *buf, int count)
 {
-        readsw(host->ctl + (addr << host->pdata->bus_shift), buf, count);
+        readsw(host->ctl + (addr << host->bus_shift), buf, count);
 }
 static inline u32 sd_ctrl_read32(struct tmio_mmc_host *host, int addr)
 {
-        return readw(host->ctl + (addr << host->pdata->bus_shift)) |
+        return readw(host->ctl + (addr << host->bus_shift)) |
-               readw(host->ctl + ((addr + 2) << host->pdata->bus_shift)) << 16;
+               readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16;
 }
 static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val)
@@ -171,21 +192,21 @@ static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val
        /* If there is a hook and it returns non-zero then there
         * is an error and the write should be skipped
         */
-        if (host->pdata->write16_hook && host->pdata->write16_hook(host, addr))
+        if (host->write16_hook && host->write16_hook(host, addr))
                return;
-        writew(val, host->ctl + (addr << host->pdata->bus_shift));
+        writew(val, host->ctl + (addr << host->bus_shift));
 }
 static inline void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr,
                u16 *buf, int count)
 {
-        writesw(host->ctl + (addr << host->pdata->bus_shift), buf, count);
+        writesw(host->ctl + (addr << host->bus_shift), buf, count);
 }
 static inline void sd_ctrl_write32(struct tmio_mmc_host *host, int addr, u32 val)
 {
-        writew(val, host->ctl + (addr << host->pdata->bus_shift));
+        writew(val, host->ctl + (addr << host->bus_shift));
-        writew(val >> 16, host->ctl + ((addr + 2) << host->pdata->bus_shift));
+        writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));
 }
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index 7d077388b9eb..331bb618e398 100644
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -28,8 +28,8 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
        if (!host->chan_tx || !host->chan_rx)
                return;
-        if (host->pdata->flags & TMIO_MMC_HAVE_CTL_DMA_REG)
+        if (host->dma->enable)
-                sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
+                host->dma->enable(host, enable);
 }
 void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
@@ -49,11 +49,10 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
        struct scatterlist *sg = host->sg_ptr, *sg_tmp;
        struct dma_async_tx_descriptor *desc = NULL;
        struct dma_chan *chan = host->chan_rx;
-        struct tmio_mmc_data *pdata = host->pdata;
        dma_cookie_t cookie;
        int ret, i;
        bool aligned = true, multiple = true;
-        unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
+        unsigned int align = (1 << host->pdata->alignment_shift) - 1;
        for_each_sg(sg, sg_tmp, host->sg_len, i) {
                if (sg_tmp->offset & align)
@@ -126,11 +125,10 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
        struct scatterlist *sg = host->sg_ptr, *sg_tmp;
        struct dma_async_tx_descriptor *desc = NULL;
        struct dma_chan *chan = host->chan_tx;
-        struct tmio_mmc_data *pdata = host->pdata;
        dma_cookie_t cookie;
        int ret, i;
        bool aligned = true, multiple = true;
-        unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
+        unsigned int align = (1 << host->pdata->alignment_shift) - 1;
        for_each_sg(sg, sg_tmp, host->sg_len, i) {
                if (sg_tmp->offset & align)
@@ -262,8 +260,8 @@ out:
 void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata)
 {
        /* We can only either use DMA for both Tx and Rx or not use it at all */
-        if (!pdata->dma || (!host->pdev->dev.of_node &&
+        if (!host->dma || (!host->pdev->dev.of_node &&
-                (!pdata->dma->chan_priv_tx || !pdata->dma->chan_priv_rx)))
+                (!host->dma->chan_priv_tx || !host->dma->chan_priv_rx)))
                return;
        if (!host->chan_tx && !host->chan_rx) {
@@ -280,7 +278,7 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
                dma_cap_set(DMA_SLAVE, mask);
                host->chan_tx = dma_request_slave_channel_compat(mask,
-                                        pdata->dma->filter, pdata->dma->chan_priv_tx,
+                                        host->dma->filter, host->dma->chan_priv_tx,
                                        &host->pdev->dev, "tx");
                dev_dbg(&host->pdev->dev, "%s: TX: got channel %p\n", __func__,
                        host->chan_tx);
@@ -288,18 +286,20 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
                if (!host->chan_tx)
                        return;
-                if (pdata->dma->chan_priv_tx)
+                if (host->dma->chan_priv_tx)
-                        cfg.slave_id = pdata->dma->slave_id_tx;
+                        cfg.slave_id = host->dma->slave_id_tx;
                cfg.direction = DMA_MEM_TO_DEV;
-                cfg.dst_addr = res->start + (CTL_SD_DATA_PORT << host->pdata->bus_shift);
+                cfg.dst_addr = res->start + (CTL_SD_DATA_PORT << host->bus_shift);
-                cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+                cfg.dst_addr_width = host->dma->dma_buswidth;
+                if (!cfg.dst_addr_width)
+                        cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
                cfg.src_addr = 0;
                ret = dmaengine_slave_config(host->chan_tx, &cfg);
                if (ret < 0)
                        goto ecfgtx;
                host->chan_rx = dma_request_slave_channel_compat(mask,
-                                        pdata->dma->filter, pdata->dma->chan_priv_rx,
+                                        host->dma->filter, host->dma->chan_priv_rx,
                                        &host->pdev->dev, "rx");
                dev_dbg(&host->pdev->dev, "%s: RX: got channel %p\n", __func__,
                        host->chan_rx);
@@ -307,11 +307,13 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
                if (!host->chan_rx)
                        goto ereqrx;
-                if (pdata->dma->chan_priv_rx)
+                if (host->dma->chan_priv_rx)
-                        cfg.slave_id = pdata->dma->slave_id_rx;
+                        cfg.slave_id = host->dma->slave_id_rx;
                cfg.direction = DMA_DEV_TO_MEM;
-                cfg.src_addr = cfg.dst_addr + pdata->dma->dma_rx_offset;
+                cfg.src_addr = cfg.dst_addr + host->pdata->dma_rx_offset;
-                cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+                cfg.src_addr_width = host->dma->dma_buswidth;
+                if (!cfg.src_addr_width)
+                        cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
                cfg.dst_addr = 0;
                ret = dmaengine_slave_config(host->chan_rx, &cfg);
                if (ret < 0)
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index 250bf8c9f998..a31c3573d386 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -835,13 +835,12 @@ fail:
 static int tmio_mmc_clk_update(struct tmio_mmc_host *host)
 {
        struct mmc_host *mmc = host->mmc;
-        struct tmio_mmc_data *pdata = host->pdata;
        int ret;
-        if (!pdata->clk_enable)
+        if (!host->clk_enable)
                return -ENOTSUPP;
-        ret = pdata->clk_enable(host->pdev, &mmc->f_max);
+        ret = host->clk_enable(host->pdev, &mmc->f_max);
        if (!ret)
                mmc->f_min = mmc->f_max / 512;
@@ -1005,10 +1004,9 @@ static int tmio_multi_io_quirk(struct mmc_card *card,
                               unsigned int direction, int blk_size)
 {
        struct tmio_mmc_host *host = mmc_priv(card->host);
-        struct tmio_mmc_data *pdata = host->pdata;
-        if (pdata->multi_io_quirk)
+        if (host->multi_io_quirk)
-                return pdata->multi_io_quirk(card, direction, blk_size);
+                return host->multi_io_quirk(card, direction, blk_size);
        return blk_size;
 }
@@ -1054,12 +1052,37 @@ static void tmio_mmc_of_parse(struct platform_device *pdev,
                pdata->flags |= TMIO_MMC_WRPROTECT_DISABLE;
 }
-int tmio_mmc_host_probe(struct tmio_mmc_host **host,
+struct tmio_mmc_host*
-                                  struct platform_device *pdev,
+tmio_mmc_host_alloc(struct platform_device *pdev)
-                                  struct tmio_mmc_data *pdata)
 {
-        struct tmio_mmc_host *_host;
+        struct tmio_mmc_host *host;
        struct mmc_host *mmc;
+        mmc = mmc_alloc_host(sizeof(struct tmio_mmc_host), &pdev->dev);
+        if (!mmc)
+                return NULL;
+        host = mmc_priv(mmc);
+        host->mmc = mmc;
+        host->pdev = pdev;
+        return host;
+}
+EXPORT_SYMBOL(tmio_mmc_host_alloc);
+void tmio_mmc_host_free(struct tmio_mmc_host *host)
+{
+        mmc_free_host(host->mmc);
+        host->mmc = NULL;
+}
+EXPORT_SYMBOL(tmio_mmc_host_free);
+int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
+                        struct tmio_mmc_data *pdata)
+{
+        struct platform_device *pdev = _host->pdev;
+        struct mmc_host *mmc = _host->mmc;
        struct resource *res_ctl;
        int ret;
        u32 irq_mask = TMIO_MASK_CMD;
@@ -1067,25 +1090,17 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
        tmio_mmc_of_parse(pdev, pdata);
        if (!(pdata->flags & TMIO_MMC_HAS_IDLE_WAIT))
-                pdata->write16_hook = NULL;
+                _host->write16_hook = NULL;
        res_ctl = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res_ctl)
                return -EINVAL;
-        mmc = mmc_alloc_host(sizeof(struct tmio_mmc_host), &pdev->dev);
-        if (!mmc)
-                return -ENOMEM;
        ret = mmc_of_parse(mmc);
        if (ret < 0)
                goto host_free;
-        pdata->dev = &pdev->dev;
-        _host = mmc_priv(mmc);
        _host->pdata = pdata;
-        _host->mmc = mmc;
-        _host->pdev = pdev;
        platform_set_drvdata(pdev, mmc);
        _host->set_pwr = pdata->set_pwr;
@@ -1192,12 +1207,9 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
                mmc_gpiod_request_cd_irq(mmc);
        }
-        *host = _host;
        return 0;
 host_free:
-        mmc_free_host(mmc);
        return ret;
 }
@@ -1222,7 +1234,6 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
        pm_runtime_disable(&pdev->dev);
        iounmap(host->ctl);
-        mmc_free_host(mmc);
 }
 EXPORT_SYMBOL(tmio_mmc_host_remove);
@@ -1237,8 +1248,8 @@ int tmio_mmc_host_runtime_suspend(struct device *dev)
        if (host->clk_cache)
                tmio_mmc_clk_stop(host);
-        if (host->pdata->clk_disable)
+        if (host->clk_disable)
-                host->pdata->clk_disable(host->pdev);
+                host->clk_disable(host->pdev);
        return 0;
 }
diff --git a/drivers/mmc/host/toshsd.c b/drivers/mmc/host/toshsd.c
index 4666262edaca..e2cdd5fb1423 100644
--- a/drivers/mmc/host/toshsd.c
+++ b/drivers/mmc/host/toshsd.c
@@ -176,7 +176,8 @@ static irqreturn_t toshsd_thread_irq(int irq, void *dev_id)
        spin_lock_irqsave(&host->lock, flags);
        if (!sg_miter_next(sg_miter))
-                return IRQ_HANDLED;
+                goto done;
        buf = sg_miter->addr;
        /* Ensure we dont read more than one block. The chip will interrupt us
@@ -198,6 +199,7 @@ static irqreturn_t toshsd_thread_irq(int irq, void *dev_id)
        sg_miter->consumed = count;
        sg_miter_stop(sg_miter);
+done:
        spin_unlock_irqrestore(&host->lock, flags);
        return IRQ_HANDLED;
@@ -699,18 +701,7 @@ static struct pci_driver toshsd_driver = {
        .driver.pm = &toshsd_pm_ops,
 };
-static int __init toshsd_drv_init(void)
+module_pci_driver(toshsd_driver);
-{
-        return pci_register_driver(&toshsd_driver);
-}
-static void __exit toshsd_drv_exit(void)
-{
-        pci_unregister_driver(&toshsd_driver);
-}
-module_init(toshsd_drv_init);
-module_exit(toshsd_drv_exit);
 MODULE_AUTHOR("Ondrej Zary, Richard Betts");
 MODULE_DESCRIPTION("Toshiba PCI Secure Digital Host Controller Interface driver");
diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index 4262296c12fa..fbabbb82b354 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -659,7 +659,7 @@ static void __vub300_irqpoll_response(struct vub300_mmc_host *vub300)
 static void __do_poll(struct vub300_mmc_host *vub300)
 {
        /* cmd_mutex is held by vub300_pollwork_thread */
-        long commretval;
+        unsigned long commretval;
        mod_timer(&vub300->inactivity_timer, jiffies + HZ);
        init_completion(&vub300->irqpoll_complete);
        send_irqpoll(vub300);
@@ -671,8 +671,6 @@ static void __do_poll(struct vub300_mmc_host *vub300)
                vub300->usb_timed_out = 1;
                usb_kill_urb(vub300->command_out_urb);
                usb_kill_urb(vub300->command_res_urb);
-        } else if (commretval < 0) {
-                vub300_queue_poll_work(vub300, 1);
        } else { /* commretval > 0 */
                __vub300_irqpoll_response(vub300);
        }
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 57388171610d..605812820e48 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -96,11 +96,6 @@
 #define TMIO_MMC_SDIO_STATUS_QUIRK      (1 << 8)
 /*
- * Some controllers have DMA enable/disable register
- */
-#define TMIO_MMC_HAVE_CTL_DMA_REG       (1 << 9)
-/*
 * Some controllers allows to set SDx actual clock
 */
 #define TMIO_MMC_CLK_ACTUAL             (1 << 10)
@@ -112,18 +107,6 @@ void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state);
 struct dma_chan;
-struct tmio_mmc_dma {
-        void *chan_priv_tx;
-        void *chan_priv_rx;
-        int slave_id_tx;
-        int slave_id_rx;
-        int alignment_shift;
-        dma_addr_t dma_rx_offset;
-        bool (*filter)(struct dma_chan *chan, void *arg);
-};
-struct tmio_mmc_host;
 /*
 * data for the MMC controller
 */
@@ -132,19 +115,12 @@ struct tmio_mmc_data {
        unsigned long                   capabilities;
        unsigned long                   capabilities2;
        unsigned long                   flags;
-        unsigned long                   bus_shift;
        u32                             ocr_mask;       /* available voltages */
-        struct tmio_mmc_dma             *dma;
-        struct device                   *dev;
        unsigned int                    cd_gpio;
+        int                             alignment_shift;
+        dma_addr_t                      dma_rx_offset;
        void (*set_pwr)(struct platform_device *host, int state);
        void (*set_clk_div)(struct platform_device *host, int state);
-        int (*write16_hook)(struct tmio_mmc_host *host, int addr);
-        /* clock management callbacks */
-        int (*clk_enable)(struct platform_device *pdev, unsigned int *f);
-        void (*clk_disable)(struct platform_device *pdev);
-        int (*multi_io_quirk)(struct mmc_card *card,
-                              unsigned int direction, int blk_size);
 };
 /*
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 4d69c00497bd..a6cf4c063e4e 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -83,7 +83,7 @@ struct mmc_ext_csd {
        bool                    hpi;                    /* HPI support bit */
        unsigned int            hpi_cmd;                /* cmd used as HPI */
        bool                    bkops;          /* background support bit */
-        bool                    bkops_en;       /* background enable bit */
+        bool                    man_bkops_en;   /* manual bkops enable bit */
        unsigned int            data_sector_size;       /* 512 bytes or 4KB */
        unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
        unsigned int            boot_ro_lock;           /* ro lock support */
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index cb2b0400d284..160448f920ac 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -182,7 +182,6 @@ extern int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen);
 extern int mmc_set_blockcount(struct mmc_card *card, unsigned int blockcount,
                              bool is_rel_write);
 extern int mmc_hw_reset(struct mmc_host *host);
-extern int mmc_hw_reset_check(struct mmc_host *host);
 extern int mmc_can_reset(struct mmc_card *card);
 extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *);
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 42b724e8d503..471fb3116dbe 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -106,6 +106,11 @@ struct mmc_data;
 * @cur_slot, @mrq and @state. These must always be updated
 * at the same time while holding @lock.
 *
+ * @irq_lock is an irq-safe spinlock protecting the INTMASK register
+ * to allow the interrupt handler to modify it directly.  Held for only long
+ * enough to read-modify-write INTMASK and no other locks are grabbed when
+ * holding this one.
+ *
 * The @mrq field of struct dw_mci_slot is also protected by @lock,
 * and must always be written at the same time as the slot is added to
 * @queue.
@@ -125,6 +130,7 @@ struct mmc_data;
 */
 struct dw_mci {
        spinlock_t              lock;
+        spinlock_t              irq_lock;
        void __iomem            *regs;
        struct scatterlist      *sg;
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 9f322706f7cb..0c8cbe5d1550 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -166,7 +166,6 @@ struct mmc_async_req {
 * struct mmc_slot - MMC slot functions
 *
 * @cd_irq:             MMC/SD-card slot hotplug detection IRQ or -EINVAL
- * @lock:               protect the @handler_priv pointer
 * @handler_priv:       MMC/SD-card slot context
 *
 * Some MMC/SD host controllers implement slot-functions like card and
@@ -176,7 +175,6 @@ struct mmc_async_req {
 */
 struct mmc_slot {
        int cd_irq;
-        struct mutex lock;
        void *handler_priv;
 };
@@ -197,6 +195,7 @@ struct mmc_context_info {
 };
 struct regulator;
+struct mmc_pwrseq;
 struct mmc_supply {
        struct regulator *vmmc;         /* Card power supply */
@@ -208,6 +207,7 @@ struct mmc_host {
        struct device           class_dev;
        int                     index;
        const struct mmc_host_ops *ops;
+        struct mmc_pwrseq       *pwrseq;
        unsigned int            f_min;
        unsigned int            f_max;
        unsigned int            f_init;
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 49ad7a943638..124f562118b8 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -53,11 +53,6 @@
 #define MMC_SEND_TUNING_BLOCK    19   /* adtc                    R1  */
 #define MMC_SEND_TUNING_BLOCK_HS200     21      /* adtc R1  */
-#define MMC_TUNING_BLK_PATTERN_4BIT_SIZE         64
-#define MMC_TUNING_BLK_PATTERN_8BIT_SIZE        128
-extern const u8 tuning_blk_pattern_4bit[MMC_TUNING_BLK_PATTERN_4BIT_SIZE];
-extern const u8 tuning_blk_pattern_8bit[MMC_TUNING_BLK_PATTERN_8BIT_SIZE];
  /* class 3 */
 #define MMC_WRITE_DAT_UNTIL_STOP 20   /* adtc [31:0] data addr   R1  */
@@ -433,6 +428,11 @@ struct _mmc_csd {
 #define EXT_CSD_BKOPS_LEVEL_2           0x2
 /*
+ * BKOPS modes
+ */
+#define EXT_CSD_MANUAL_BKOPS_MASK       0x01
+/*
 * MMC_SWITCH access modes
 */
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index f767a0de611f..c3e3db196738 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -17,6 +17,11 @@
 #include <linux/io.h>
 #include <linux/mmc/host.h>
+struct sdhci_host_next {
+        unsigned int    sg_count;
+        s32             cookie;
+};
 struct sdhci_host {
        /* Data set by hardware interface driver */
        const char *hw_name;    /* Hardware bus name */
@@ -106,6 +111,10 @@ struct sdhci_host {
 #define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD  (1<<10)
 /* Capability register bit-63 indicates HS400 support */
 #define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400               (1<<11)
+/* forced tuned clock */
+#define SDHCI_QUIRK2_TUNING_WORK_AROUND                 (1<<12)
+/* disable the block count for single block transactions */
+#define SDHCI_QUIRK2_SUPPORT_SINGLE                     (1<<13)
        int irq;                /* Device IRQ */
        void __iomem *ioaddr;   /* Mapped address */
@@ -203,6 +212,7 @@ struct sdhci_host {
 #define SDHCI_TUNING_MODE_1     0
        struct timer_list       tuning_timer;   /* Timer for tuning */
+        struct sdhci_host_next  next_data;
        unsigned long private[0] ____cacheline_aligned;
 };
 #endif /* LINUX_MMC_SDHCI_H */
diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index 68927ae50845..da77e5e2041d 100644
--- a/include/linux/mmc/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
@@ -3,20 +3,10 @@
 #include <linux/types.h>
-struct platform_device;
 #define SH_MOBILE_SDHI_IRQ_CARD_DETECT  "card_detect"
 #define SH_MOBILE_SDHI_IRQ_SDCARD       "sdcard"
 #define SH_MOBILE_SDHI_IRQ_SDIO         "sdio"
-/**
- * struct sh_mobile_sdhi_ops - SDHI driver callbacks
- * @cd_wakeup:          trigger a card-detection run
- */
-struct sh_mobile_sdhi_ops {
-        void (*cd_wakeup)(const struct platform_device *pdev);
-};
 struct sh_mobile_sdhi_info {
        int dma_slave_tx;
        int dma_slave_rx;
@@ -25,11 +15,6 @@ struct sh_mobile_sdhi_info {
        unsigned long tmio_caps2;
        u32 tmio_ocr_mask;      /* available MMC voltages */
        unsigned int cd_gpio;
-        /* callbacks for board specific setup code */
-        int (*init)(struct platform_device *pdev,
-                    const struct sh_mobile_sdhi_ops *ops);
-        void (*cleanup)(struct platform_device *pdev);
 };
 #endif /* LINUX_MMC_SH_MOBILE_SDHI_H */
diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h
index e56fa24c9322..3945a8c9d3cb 100644
--- a/include/linux/mmc/slot-gpio.h
+++ b/include/linux/mmc/slot-gpio.h
@@ -15,12 +15,10 @@ struct mmc_host;
 int mmc_gpio_get_ro(struct mmc_host *host);
 int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio);
-void mmc_gpio_free_ro(struct mmc_host *host);
 int mmc_gpio_get_cd(struct mmc_host *host);
 int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio,
                        unsigned int debounce);
-void mmc_gpio_free_cd(struct mmc_host *host);
 int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
                         unsigned int idx, bool override_active_level,
@@ -28,7 +26,8 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
 int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
                         unsigned int idx, bool override_active_level,
                         unsigned int debounce, bool *gpio_invert);
-void mmc_gpiod_free_cd(struct mmc_host *host);
+void mmc_gpio_set_cd_isr(struct mmc_host *host,
+                         irqreturn_t (*isr)(int irq, void *dev_id));
 void mmc_gpiod_request_cd_irq(struct mmc_host *host);
 #endif
diff --git a/include/linux/platform_data/mmc-omap.h b/include/linux/platform_data/mmc-omap.h
index 5c188f4e9bec..929469291406 100644
--- a/include/linux/platform_data/mmc-omap.h
+++ b/include/linux/platform_data/mmc-omap.h
@@ -31,10 +31,6 @@ struct omap_mmc_platform_data {
        void (*cleanup)(struct device *dev);
        void (*shutdown)(struct device *dev);
-        /* To handle board related suspend/resume functionality for MMC */
-        int (*suspend)(struct device *dev, int slot);
-        int (*resume)(struct device *dev, int slot);
        /* Return context loss count due to PM states changing */
        int (*get_context_loss_count)(struct device *dev);