Upgrade to 4.4.50-rt62

The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e

where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt

c) One patch has been backported thus revert the patch before applying.

 filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff  |patch -p1 --dry-run

Upstream status: backport

Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>

13 files changed, 245 insertions, 108 deletions

diff --git a/kernel/drivers/mmc/host/Kconfig b/kernel/drivers/mmc/host/Kconfig
index 1dee53363..2e6d2fff1 100644
--- a/kernel/drivers/mmc/host/Kconfig
+++ b/kernel/drivers/mmc/host/Kconfig
@@ -97,6 +97,7 @@ config MMC_RICOH_MMC
 config MMC_SDHCI_ACPI
 	tristate "SDHCI support for ACPI enumerated SDHCI controllers"
 	depends on MMC_SDHCI && ACPI
+	select IOSF_MBI if X86
 	help
 	  This selects support for ACPI enumerated SDHCI controllers,
 	  identified by ACPI Compatibility ID PNP0D40 or specific
diff --git a/kernel/drivers/mmc/host/dw_mmc-pltfm.c b/kernel/drivers/mmc/host/dw_mmc-pltfm.c
index 7e1d13b68..7dcfb1d50 100644
--- a/kernel/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/kernel/drivers/mmc/host/dw_mmc-pltfm.c
@@ -59,12 +59,13 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
 	host->pdata = pdev->dev.platform_data;
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	/* Get registers' physical base address */
-	host->phy_regs = (void *)(regs->start);
 	host->regs = devm_ioremap_resource(&pdev->dev, regs);
 	if (IS_ERR(host->regs))
 		return PTR_ERR(host->regs);
 
+	/* Get registers' physical base address */
+	host->phy_regs = regs->start;
+
 	platform_set_drvdata(pdev, host);
 	return dw_mci_probe(host);
 }
diff --git a/kernel/drivers/mmc/host/dw_mmc.c b/kernel/drivers/mmc/host/dw_mmc.c
index 7a6cedbe4..fb204ee6f 100644
--- a/kernel/drivers/mmc/host/dw_mmc.c
+++ b/kernel/drivers/mmc/host/dw_mmc.c
@@ -699,7 +699,7 @@ static int dw_mci_edmac_start_dma(struct dw_mci *host,
 	int ret = 0;
 
 	/* Set external dma config: burst size, burst width */
-	cfg.dst_addr = (dma_addr_t)(host->phy_regs + fifo_offset);
+	cfg.dst_addr = host->phy_regs + fifo_offset;
 	cfg.src_addr = cfg.dst_addr;
 	cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
diff --git a/kernel/drivers/mmc/host/mmc_spi.c b/kernel/drivers/mmc/host/mmc_spi.c
index 1c1b45ef3..aad3243a4 100644
--- a/kernel/drivers/mmc/host/mmc_spi.c
+++ b/kernel/drivers/mmc/host/mmc_spi.c
@@ -1436,6 +1436,12 @@ static int mmc_spi_probe(struct spi_device *spi)
 					     host->pdata->cd_debounce);
 		if (status != 0)
 			goto fail_add_host;
+
+		/* The platform has a CD GPIO signal that may support
+		 * interrupts, so let mmc_gpiod_request_cd_irq() decide
+		 * if polling is needed or not.
+		 */
+		mmc->caps &= ~MMC_CAP_NEEDS_POLL;
 		mmc_gpiod_request_cd_irq(mmc);
 	}
 
diff --git a/kernel/drivers/mmc/host/mxs-mmc.c b/kernel/drivers/mmc/host/mxs-mmc.c
index d839147e5..c8b8ac66f 100644
--- a/kernel/drivers/mmc/host/mxs-mmc.c
+++ b/kernel/drivers/mmc/host/mxs-mmc.c
@@ -309,6 +309,9 @@ static void mxs_mmc_ac(struct mxs_mmc_host *host)
 	cmd0 = BF_SSP(cmd->opcode, CMD0_CMD);
 	cmd1 = cmd->arg;
 
+	if (cmd->opcode == MMC_STOP_TRANSMISSION)
+		cmd0 |= BM_SSP_CMD0_APPEND_8CYC;
+
 	if (host->sdio_irq_en) {
 		ctrl0 |= BM_SSP_CTRL0_SDIO_IRQ_CHECK;
 		cmd0 |= BM_SSP_CMD0_CONT_CLKING_EN | BM_SSP_CMD0_SLOW_CLKING_EN;
@@ -417,8 +420,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host)
 		       ssp->base + HW_SSP_BLOCK_SIZE);
 	}
 
-	if ((cmd->opcode == MMC_STOP_TRANSMISSION) ||
-	    (cmd->opcode == SD_IO_RW_EXTENDED))
+	if (cmd->opcode == SD_IO_RW_EXTENDED)
 		cmd0 |= BM_SSP_CMD0_APPEND_8CYC;
 
 	cmd1 = cmd->arg;
@@ -661,13 +663,13 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, mmc);
 
+	spin_lock_init(&host->lock);
+
 	ret = devm_request_irq(&pdev->dev, irq_err, mxs_mmc_irq_handler, 0,
 			       dev_name(&pdev->dev), host);
 	if (ret)
 		goto out_free_dma;
 
-	spin_lock_init(&host->lock);
-
 	ret = mmc_add_host(mmc);
 	if (ret)
 		goto out_free_dma;
diff --git a/kernel/drivers/mmc/host/pxamci.c b/kernel/drivers/mmc/host/pxamci.c
index 28a057fae..72bbb12fb 100644
--- a/kernel/drivers/mmc/host/pxamci.c
+++ b/kernel/drivers/mmc/host/pxamci.c
@@ -798,14 +798,16 @@ static int pxamci_probe(struct platform_device *pdev)
 		gpio_direction_output(gpio_power,
 				      host->pdata->gpio_power_invert);
 	}
-	if (gpio_is_valid(gpio_ro))
+	if (gpio_is_valid(gpio_ro)) {
 		ret = mmc_gpio_request_ro(mmc, gpio_ro);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed requesting gpio_ro %d\n", gpio_ro);
-		goto out;
-	} else {
-		mmc->caps2 |= host->pdata->gpio_card_ro_invert ?
-			0 : MMC_CAP2_RO_ACTIVE_HIGH;
+		if (ret) {
+			dev_err(&pdev->dev, "Failed requesting gpio_ro %d\n",
+				gpio_ro);
+			goto out;
+		} else {
+			mmc->caps2 |= host->pdata->gpio_card_ro_invert ?
+				0 : MMC_CAP2_RO_ACTIVE_HIGH;
+		}
 	}
 
 	if (gpio_is_valid(gpio_cd))
diff --git a/kernel/drivers/mmc/host/rtsx_usb_sdmmc.c b/kernel/drivers/mmc/host/rtsx_usb_sdmmc.c
index 6c71fc9f7..da9f71b8d 100644
--- a/kernel/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/kernel/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -1138,11 +1138,6 @@ static void sdmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	dev_dbg(sdmmc_dev(host), "%s\n", __func__);
 	mutex_lock(&ucr->dev_mutex);
 
-	if (rtsx_usb_card_exclusive_check(ucr, RTSX_USB_SD_CARD)) {
-		mutex_unlock(&ucr->dev_mutex);
-		return;
-	}
-
 	sd_set_power_mode(host, ios->power_mode);
 	sd_set_bus_width(host, ios->bus_width);
 	sd_set_timing(host, ios->timing, &host->ddr_mode);
@@ -1314,6 +1309,7 @@ static void rtsx_usb_update_led(struct work_struct *work)
 		container_of(work, struct rtsx_usb_sdmmc, led_work);
 	struct rtsx_ucr *ucr = host->ucr;
 
+	pm_runtime_get_sync(sdmmc_dev(host));
 	mutex_lock(&ucr->dev_mutex);
 
 	if (host->led.brightness == LED_OFF)
@@ -1322,6 +1318,7 @@ static void rtsx_usb_update_led(struct work_struct *work)
 		rtsx_usb_turn_on_led(ucr);
 
 	mutex_unlock(&ucr->dev_mutex);
+	pm_runtime_put(sdmmc_dev(host));
 }
 #endif
 
diff --git a/kernel/drivers/mmc/host/sdhci-acpi.c b/kernel/drivers/mmc/host/sdhci-acpi.c
index a5cda926d..5a05bf400 100644
--- a/kernel/drivers/mmc/host/sdhci-acpi.c
+++ b/kernel/drivers/mmc/host/sdhci-acpi.c
@@ -41,6 +41,11 @@
 #include <linux/mmc/pm.h>
 #include <linux/mmc/slot-gpio.h>
 
+#ifdef CONFIG_X86
+#include <asm/cpu_device_id.h>
+#include <asm/iosf_mbi.h>
+#endif
+
 #include "sdhci.h"
 
 enum {
@@ -146,6 +151,75 @@ static const struct sdhci_acpi_chip sdhci_acpi_chip_int = {
 	.ops = &sdhci_acpi_ops_int,
 };
 
+#ifdef CONFIG_X86
+
+static bool sdhci_acpi_byt(void)
+{
+	static const struct x86_cpu_id byt[] = {
+		{ X86_VENDOR_INTEL, 6, 0x37 },
+		{}
+	};
+
+	return x86_match_cpu(byt);
+}
+
+#define BYT_IOSF_SCCEP			0x63
+#define BYT_IOSF_OCP_NETCTRL0		0x1078
+#define BYT_IOSF_OCP_TIMEOUT_BASE	GENMASK(10, 8)
+
+static void sdhci_acpi_byt_setting(struct device *dev)
+{
+	u32 val = 0;
+
+	if (!sdhci_acpi_byt())
+		return;
+
+	if (iosf_mbi_read(BYT_IOSF_SCCEP, 0x06, BYT_IOSF_OCP_NETCTRL0,
+			  &val)) {
+		dev_err(dev, "%s read error\n", __func__);
+		return;
+	}
+
+	if (!(val & BYT_IOSF_OCP_TIMEOUT_BASE))
+		return;
+
+	val &= ~BYT_IOSF_OCP_TIMEOUT_BASE;
+
+	if (iosf_mbi_write(BYT_IOSF_SCCEP, 0x07, BYT_IOSF_OCP_NETCTRL0,
+			   val)) {
+		dev_err(dev, "%s write error\n", __func__);
+		return;
+	}
+
+	dev_dbg(dev, "%s completed\n", __func__);
+}
+
+static bool sdhci_acpi_byt_defer(struct device *dev)
+{
+	if (!sdhci_acpi_byt())
+		return false;
+
+	if (!iosf_mbi_available())
+		return true;
+
+	sdhci_acpi_byt_setting(dev);
+
+	return false;
+}
+
+#else
+
+static inline void sdhci_acpi_byt_setting(struct device *dev)
+{
+}
+
+static inline bool sdhci_acpi_byt_defer(struct device *dev)
+{
+	return false;
+}
+
+#endif
+
 static int bxt_get_cd(struct mmc_host *mmc)
 {
 	int gpio_cd = mmc_gpio_get_cd(mmc);
@@ -233,7 +307,7 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = {
 	.chip    = &sdhci_acpi_chip_int,
 	.caps    = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
 		   MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
-		   MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY,
+		   MMC_CAP_WAIT_WHILE_BUSY,
 	.caps2   = MMC_CAP2_HC_ERASE_SZ,
 	.flags   = SDHCI_ACPI_RUNTIME_PM,
 	.quirks  = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
@@ -248,7 +322,7 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
 		   SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
 	.quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
 	.caps    = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD |
-		   MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY,
+		   MMC_CAP_WAIT_WHILE_BUSY,
 	.flags   = SDHCI_ACPI_RUNTIME_PM,
 	.pm_caps = MMC_PM_KEEP_POWER,
 	.probe_slot	= sdhci_acpi_sdio_probe_slot,
@@ -260,7 +334,7 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = {
 	.quirks  = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
 	.quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
 		   SDHCI_QUIRK2_STOP_WITH_TC,
-	.caps    = MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY,
+	.caps    = MMC_CAP_WAIT_WHILE_BUSY,
 	.probe_slot	= sdhci_acpi_sd_probe_slot,
 };
 
@@ -337,6 +411,9 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 	if (acpi_bus_get_status(device) || !device->status.present)
 		return -ENODEV;
 
+	if (sdhci_acpi_byt_defer(dev))
+		return -EPROBE_DEFER;
+
 	hid = acpi_device_hid(device);
 	uid = device->pnp.unique_id;
 
@@ -460,6 +537,8 @@ static int sdhci_acpi_resume(struct device *dev)
 {
 	struct sdhci_acpi_host *c = dev_get_drvdata(dev);
 
+	sdhci_acpi_byt_setting(&c->pdev->dev);
+
 	return sdhci_resume_host(c->host);
 }
 
@@ -483,6 +562,8 @@ static int sdhci_acpi_runtime_resume(struct device *dev)
 {
 	struct sdhci_acpi_host *c = dev_get_drvdata(dev);
 
+	sdhci_acpi_byt_setting(&c->pdev->dev);
+
 	return sdhci_runtime_resume_host(c->host);
 }
 
diff --git a/kernel/drivers/mmc/host/sdhci-pci-core.c b/kernel/drivers/mmc/host/sdhci-pci-core.c
index 45ee07d3a..5ebe6eb6b 100644
--- a/kernel/drivers/mmc/host/sdhci-pci-core.c
+++ b/kernel/drivers/mmc/host/sdhci-pci-core.c
@@ -361,7 +361,6 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
 				 MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
-				 MMC_CAP_BUS_WIDTH_TEST |
 				 MMC_CAP_WAIT_WHILE_BUSY;
 	slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
 	slot->hw_reset = sdhci_pci_int_hw_reset;
@@ -377,19 +376,18 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
 static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
-				 MMC_CAP_BUS_WIDTH_TEST |
 				 MMC_CAP_WAIT_WHILE_BUSY;
 	return 0;
 }
 
 static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
 {
-	slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST |
-				 MMC_CAP_WAIT_WHILE_BUSY;
+	slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
 	slot->cd_con_id = NULL;
 	slot->cd_idx = 0;
 	slot->cd_override_level = true;
 	if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
+	    slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD ||
 	    slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD)
 		slot->host->mmc_host_ops.get_cd = bxt_get_cd;
 
@@ -1173,6 +1171,30 @@ static const struct pci_device_id pci_ids[] = {
 
 	{
 		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BXTM_EMMC,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_emmc,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BXTM_SDIO,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_sdio,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BXTM_SD,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_sd,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
 		.device		= PCI_DEVICE_ID_INTEL_APL_EMMC,
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
diff --git a/kernel/drivers/mmc/host/sdhci-pci.h b/kernel/drivers/mmc/host/sdhci-pci.h
index d1a0b4db6..89e715168 100644
--- a/kernel/drivers/mmc/host/sdhci-pci.h
+++ b/kernel/drivers/mmc/host/sdhci-pci.h
@@ -28,6 +28,9 @@
 #define PCI_DEVICE_ID_INTEL_BXT_SD	0x0aca
 #define PCI_DEVICE_ID_INTEL_BXT_EMMC	0x0acc
 #define PCI_DEVICE_ID_INTEL_BXT_SDIO	0x0ad0
+#define PCI_DEVICE_ID_INTEL_BXTM_SD	0x1aca
+#define PCI_DEVICE_ID_INTEL_BXTM_EMMC	0x1acc
+#define PCI_DEVICE_ID_INTEL_BXTM_SDIO	0x1ad0
 #define PCI_DEVICE_ID_INTEL_APL_SD	0x5aca
 #define PCI_DEVICE_ID_INTEL_APL_EMMC	0x5acc
 #define PCI_DEVICE_ID_INTEL_APL_SDIO	0x5ad0
diff --git a/kernel/drivers/mmc/host/sdhci.c b/kernel/drivers/mmc/host/sdhci.c
index 8814eb6b8..bda164089 100644
--- a/kernel/drivers/mmc/host/sdhci.c
+++ b/kernel/drivers/mmc/host/sdhci.c
@@ -492,7 +492,7 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
 		host->align_buffer, host->align_buffer_sz, direction);
 	if (dma_mapping_error(mmc_dev(host->mmc), host->align_addr))
 		goto fail;
-	BUG_ON(host->align_addr & host->align_mask);
+	BUG_ON(host->align_addr & SDHCI_ADMA2_MASK);
 
 	host->sg_count = sdhci_pre_dma_transfer(host, data);
 	if (host->sg_count < 0)
@@ -514,8 +514,8 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
 		 * the (up to three) bytes that screw up the
 		 * alignment.
 		 */
-		offset = (host->align_sz - (addr & host->align_mask)) &
-			 host->align_mask;
+		offset = (SDHCI_ADMA2_ALIGN - (addr & SDHCI_ADMA2_MASK)) &
+			 SDHCI_ADMA2_MASK;
 		if (offset) {
 			if (data->flags & MMC_DATA_WRITE) {
 				buffer = sdhci_kmap_atomic(sg, &flags);
@@ -529,8 +529,8 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
 
 			BUG_ON(offset > 65536);
 
-			align += host->align_sz;
-			align_addr += host->align_sz;
+			align += SDHCI_ADMA2_ALIGN;
+			align_addr += SDHCI_ADMA2_ALIGN;
 
 			desc += host->desc_sz;
 
@@ -611,7 +611,7 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
 	/* Do a quick scan of the SG list for any unaligned mappings */
 	has_unaligned = false;
 	for_each_sg(data->sg, sg, host->sg_count, i)
-		if (sg_dma_address(sg) & host->align_mask) {
+		if (sg_dma_address(sg) & SDHCI_ADMA2_MASK) {
 			has_unaligned = true;
 			break;
 		}
@@ -623,15 +623,15 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
 		align = host->align_buffer;
 
 		for_each_sg(data->sg, sg, host->sg_count, i) {
-			if (sg_dma_address(sg) & host->align_mask) {
-				size = host->align_sz -
-				       (sg_dma_address(sg) & host->align_mask);
+			if (sg_dma_address(sg) & SDHCI_ADMA2_MASK) {
+				size = SDHCI_ADMA2_ALIGN -
+				       (sg_dma_address(sg) & SDHCI_ADMA2_MASK);
 
 				buffer = sdhci_kmap_atomic(sg, &flags);
 				memcpy(buffer, align, size);
 				sdhci_kunmap_atomic(buffer, &flags);
 
-				align += host->align_sz;
+				align += SDHCI_ADMA2_ALIGN;
 			}
 		}
 	}
@@ -666,9 +666,20 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd)
 	if (!data)
 		target_timeout = cmd->busy_timeout * 1000;
 	else {
-		target_timeout = data->timeout_ns / 1000;
-		if (host->clock)
-			target_timeout += data->timeout_clks / host->clock;
+		target_timeout = DIV_ROUND_UP(data->timeout_ns, 1000);
+		if (host->clock && data->timeout_clks) {
+			unsigned long long val;
+
+			/*
+			 * data->timeout_clks is in units of clock cycles.
+			 * host->clock is in Hz.  target_timeout is in us.
+			 * Hence, us = 1000000 * cycles / Hz.  Round up.
+			 */
+			val = 1000000ULL * data->timeout_clks;
+			if (do_div(val, host->clock))
+				target_timeout++;
+			target_timeout += val;
+		}
 	}
 
 	/*
@@ -1304,7 +1315,9 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
 			pwr = SDHCI_POWER_330;
 			break;
 		default:
-			BUG();
+			WARN(1, "%s: Invalid vdd %#x\n",
+			     mmc_hostname(host->mmc), vdd);
+			break;
 		}
 	}
 
@@ -2027,7 +2040,27 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
 			ctrl &= ~SDHCI_CTRL_EXEC_TUNING;
 			sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
 
+			sdhci_do_reset(host, SDHCI_RESET_CMD);
+			sdhci_do_reset(host, SDHCI_RESET_DATA);
+
 			err = -EIO;
+
+			if (cmd.opcode != MMC_SEND_TUNING_BLOCK_HS200)
+				goto out;
+
+			sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
+			sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
+
+			spin_unlock_irqrestore(&host->lock, flags);
+
+			memset(&cmd, 0, sizeof(cmd));
+			cmd.opcode = MMC_STOP_TRANSMISSION;
+			cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
+			cmd.busy_timeout = 50;
+			mmc_wait_for_cmd(mmc, &cmd, 0);
+
+			spin_lock_irqsave(&host->lock, flags);
+
 			goto out;
 		}
 
@@ -2596,7 +2629,8 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
 			pr_err("%s: Card is consuming too much power!\n",
 				mmc_hostname(host->mmc));
 
-		if (intmask & SDHCI_INT_CARD_INT) {
+		if ((intmask & SDHCI_INT_CARD_INT) &&
+		    (host->ier & SDHCI_INT_CARD_INT)) {
 			sdhci_enable_sdio_irq_nolock(host, false);
 			host->thread_isr |= SDHCI_INT_CARD_INT;
 			result = IRQ_WAKE_THREAD;
@@ -2972,24 +3006,17 @@ int sdhci_add_host(struct sdhci_host *host)
 		if (host->flags & SDHCI_USE_64_BIT_DMA) {
 			host->adma_table_sz = (SDHCI_MAX_SEGS * 2 + 1) *
 					      SDHCI_ADMA2_64_DESC_SZ;
-			host->align_buffer_sz = SDHCI_MAX_SEGS *
-						SDHCI_ADMA2_64_ALIGN;
 			host->desc_sz = SDHCI_ADMA2_64_DESC_SZ;
-			host->align_sz = SDHCI_ADMA2_64_ALIGN;
-			host->align_mask = SDHCI_ADMA2_64_ALIGN - 1;
 		} else {
 			host->adma_table_sz = (SDHCI_MAX_SEGS * 2 + 1) *
 					      SDHCI_ADMA2_32_DESC_SZ;
-			host->align_buffer_sz = SDHCI_MAX_SEGS *
-						SDHCI_ADMA2_32_ALIGN;
 			host->desc_sz = SDHCI_ADMA2_32_DESC_SZ;
-			host->align_sz = SDHCI_ADMA2_32_ALIGN;
-			host->align_mask = SDHCI_ADMA2_32_ALIGN - 1;
 		}
 		host->adma_table = dma_alloc_coherent(mmc_dev(mmc),
 						      host->adma_table_sz,
 						      &host->adma_addr,
 						      GFP_KERNEL);
+		host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN;
 		host->align_buffer = kmalloc(host->align_buffer_sz, GFP_KERNEL);
 		if (!host->adma_table || !host->align_buffer) {
 			if (host->adma_table)
@@ -3003,7 +3030,7 @@ int sdhci_add_host(struct sdhci_host *host)
 			host->flags &= ~SDHCI_USE_ADMA;
 			host->adma_table = NULL;
 			host->align_buffer = NULL;
-		} else if (host->adma_addr & host->align_mask) {
+		} else if (host->adma_addr & (SDHCI_ADMA2_DESC_ALIGN - 1)) {
 			pr_warn("%s: unable to allocate aligned ADMA descriptor\n",
 				mmc_hostname(mmc));
 			host->flags &= ~SDHCI_USE_ADMA;
@@ -3095,14 +3122,14 @@ int sdhci_add_host(struct sdhci_host *host)
 		if (caps[0] & SDHCI_TIMEOUT_CLK_UNIT)
 			host->timeout_clk *= 1000;
 
+		if (override_timeout_clk)
+			host->timeout_clk = override_timeout_clk;
+
 		mmc->max_busy_timeout = host->ops->get_max_timeout_count ?
 			host->ops->get_max_timeout_count(host) : 1 << 27;
 		mmc->max_busy_timeout /= host->timeout_clk;
 	}
 
-	if (override_timeout_clk)
-		host->timeout_clk = override_timeout_clk;
-
 	mmc->caps |= MMC_CAP_SDIO_IRQ | MMC_CAP_ERASE | MMC_CAP_CMD23;
 	mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
 
diff --git a/kernel/drivers/mmc/host/sdhci.h b/kernel/drivers/mmc/host/sdhci.h
index 9c331ac5a..0115e9907 100644
--- a/kernel/drivers/mmc/host/sdhci.h
+++ b/kernel/drivers/mmc/host/sdhci.h
@@ -272,22 +272,27 @@
 /* ADMA2 32-bit DMA descriptor size */
 #define SDHCI_ADMA2_32_DESC_SZ	8
 
-/* ADMA2 32-bit DMA alignment */
-#define SDHCI_ADMA2_32_ALIGN	4
-
 /* ADMA2 32-bit descriptor */
 struct sdhci_adma2_32_desc {
 	__le16	cmd;
 	__le16	len;
 	__le32	addr;
-}  __packed __aligned(SDHCI_ADMA2_32_ALIGN);
+}  __packed __aligned(4);
+
+/* ADMA2 data alignment */
+#define SDHCI_ADMA2_ALIGN	4
+#define SDHCI_ADMA2_MASK	(SDHCI_ADMA2_ALIGN - 1)
+
+/*
+ * ADMA2 descriptor alignment.  Some controllers (e.g. Intel) require 8 byte
+ * alignment for the descriptor table even in 32-bit DMA mode.  Memory
+ * allocation is at least 8 byte aligned anyway, so just stipulate 8 always.
+ */
+#define SDHCI_ADMA2_DESC_ALIGN	8
 
 /* ADMA2 64-bit DMA descriptor size */
 #define SDHCI_ADMA2_64_DESC_SZ	12
 
-/* ADMA2 64-bit DMA alignment */
-#define SDHCI_ADMA2_64_ALIGN	8
-
 /*
  * ADMA2 64-bit descriptor. Note 12-byte descriptor can't always be 8-byte
  * aligned.
@@ -483,8 +488,6 @@ struct sdhci_host {
 	dma_addr_t align_addr;	/* Mapped bounce buffer */
 
 	unsigned int desc_sz;	/* ADMA descriptor size */
-	unsigned int align_sz;	/* ADMA alignment */
-	unsigned int align_mask;	/* ADMA alignment mask */
 
 	struct tasklet_struct finish_tasklet;	/* Tasklet structures */
 
diff --git a/kernel/drivers/mmc/host/sh_mmcif.c b/kernel/drivers/mmc/host/sh_mmcif.c
index ad9ffea7d..6234eab38 100644
--- a/kernel/drivers/mmc/host/sh_mmcif.c
+++ b/kernel/drivers/mmc/host/sh_mmcif.c
@@ -397,38 +397,26 @@ static void sh_mmcif_start_dma_tx(struct sh_mmcif_host *host)
 }
 
 static struct dma_chan *
-sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
-			 struct sh_mmcif_plat_data *pdata,
-			 enum dma_transfer_direction direction)
+sh_mmcif_request_dma_pdata(struct sh_mmcif_host *host, uintptr_t slave_id)
 {
-	struct dma_slave_config cfg = { 0, };
-	struct dma_chan *chan;
-	void *slave_data = NULL;
-	struct resource *res;
-	struct device *dev = sh_mmcif_host_to_dev(host);
 	dma_cap_mask_t mask;
-	int ret;
 
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
+	if (slave_id <= 0)
+		return NULL;
 
-	if (pdata)
-		slave_data = direction == DMA_MEM_TO_DEV ?
-			(void *)pdata->slave_id_tx :
-			(void *)pdata->slave_id_rx;
-
-	chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
-				slave_data, dev,
-				direction == DMA_MEM_TO_DEV ? "tx" : "rx");
-
-	dev_dbg(dev, "%s: %s: got channel %p\n", __func__,
-		direction == DMA_MEM_TO_DEV ? "TX" : "RX", chan);
+	return dma_request_channel(mask, shdma_chan_filter, (void *)slave_id);
+}
 
-	if (!chan)
-		return NULL;
+static int sh_mmcif_dma_slave_config(struct sh_mmcif_host *host,
+				     struct dma_chan *chan,
+				     enum dma_transfer_direction direction)
+{
+	struct resource *res;
+	struct dma_slave_config cfg = { 0, };
 
 	res = platform_get_resource(host->pd, IORESOURCE_MEM, 0);
-
 	cfg.direction = direction;
 
 	if (direction == DMA_DEV_TO_MEM) {
@@ -439,38 +427,42 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
 		cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	}
 
-	ret = dmaengine_slave_config(chan, &cfg);
-	if (ret < 0) {
-		dma_release_channel(chan);
-		return NULL;
-	}
-
-	return chan;
+	return dmaengine_slave_config(chan, &cfg);
 }
 
-static void sh_mmcif_request_dma(struct sh_mmcif_host *host,
-				 struct sh_mmcif_plat_data *pdata)
+static void sh_mmcif_request_dma(struct sh_mmcif_host *host)
 {
 	struct device *dev = sh_mmcif_host_to_dev(host);
 	host->dma_active = false;
 
-	if (pdata) {
-		if (pdata->slave_id_tx <= 0 || pdata->slave_id_rx <= 0)
-			return;
-	} else if (!dev->of_node) {
-		return;
+	/* We can only either use DMA for both Tx and Rx or not use it at all */
+	if (IS_ENABLED(CONFIG_SUPERH) && dev->platform_data) {
+		struct sh_mmcif_plat_data *pdata = dev->platform_data;
+
+		host->chan_tx = sh_mmcif_request_dma_pdata(host,
+							pdata->slave_id_tx);
+		host->chan_rx = sh_mmcif_request_dma_pdata(host,
+							pdata->slave_id_rx);
+	} else {
+		host->chan_tx = dma_request_slave_channel(dev, "tx");
+		host->chan_rx = dma_request_slave_channel(dev, "rx");
 	}
+	dev_dbg(dev, "%s: got channel TX %p RX %p\n", __func__, host->chan_tx,
+		host->chan_rx);
 
-	/* We can only either use DMA for both Tx and Rx or not use it at all */
-	host->chan_tx = sh_mmcif_request_dma_one(host, pdata, DMA_MEM_TO_DEV);
-	if (!host->chan_tx)
-		return;
+	if (!host->chan_tx || !host->chan_rx ||
+	    sh_mmcif_dma_slave_config(host, host->chan_tx, DMA_MEM_TO_DEV) ||
+	    sh_mmcif_dma_slave_config(host, host->chan_rx, DMA_DEV_TO_MEM))
+		goto error;
 
-	host->chan_rx = sh_mmcif_request_dma_one(host, pdata, DMA_DEV_TO_MEM);
-	if (!host->chan_rx) {
+	return;
+
+error:
+	if (host->chan_tx)
 		dma_release_channel(host->chan_tx);
-		host->chan_tx = NULL;
-	}
+	if (host->chan_rx)
+		dma_release_channel(host->chan_rx);
+	host->chan_tx = host->chan_rx = NULL;
 }
 
 static void sh_mmcif_release_dma(struct sh_mmcif_host *host)
@@ -1102,7 +1094,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	if (ios->power_mode == MMC_POWER_UP) {
 		if (!host->card_present) {
 			/* See if we also get DMA */
-			sh_mmcif_request_dma(host, dev->platform_data);
+			sh_mmcif_request_dma(host);
 			host->card_present = true;
 		}
 		sh_mmcif_set_power(host, ios);