diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 47379f4..49907f4 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -52,6 +52,7 @@
 #define INT_MASK		0xf
 #define MAX_PHASES		16
 #define CORE_DLL_LOCK		BIT(7)
+#define CORE_DDR_DLL_LOCK	BIT(11)
 #define CORE_DLL_EN		BIT(16)
 #define CORE_CDR_EN		BIT(17)
 #define CORE_CK_OUT_EN		BIT(18)
@@ -63,6 +64,7 @@
 #define CORE_DLL_STATUS		0x108
 
 #define CORE_DLL_CONFIG_2	0x1b4
+#define CORE_DDR_CAL_EN		BIT(0)
 #define CORE_FLL_CYCLE_CNT	BIT(18)
 #define CORE_DLL_CLOCK_DISABLE	BIT(21)
 
@@ -101,6 +103,11 @@
 #define CORE_DDR_200_CFG		0x184
 #define CORE_CDC_T4_DLY_SEL		BIT(0)
 #define CORE_START_CDC_TRAFFIC		BIT(6)
+#define CORE_VENDOR_SPEC3	0x1b0
+#define CORE_PWRSAVE_DLL	BIT(3)
+
+#define CORE_DDR_CONFIG		0x1b8
+#define DDR_CONFIG_POR_VAL	0x80040853
 
 #define CORE_VENDOR_SPEC_CAPABILITIES0	0x11c
 
@@ -128,6 +135,7 @@ struct sdhci_msm_host {
 	bool tuning_done;
 	bool calibration_done;
 	u8 saved_tuning_phase;
+	bool use_cdclp533;
 };
 
 /* Platform specific tuning */
@@ -569,6 +577,87 @@ static int sdhci_msm_cdclp533_calibration(struct sdhci_host *host)
 	return ret;
 }
 
+static int sdhci_msm_cm_dll_sdc4_calibration(struct sdhci_host *host)
+{
+	u32 dll_status, config;
+	int ret;
+
+	pr_debug("%s: %s: Enter\n", mmc_hostname(host->mmc), __func__);
+
+	/*
+	 * Currently the CORE_DDR_CONFIG register defaults to desired
+	 * configuration on reset. Currently reprogramming the power on
+	 * reset (POR) value in case it might have been modified by
+	 * bootloaders. In the future, if this changes, then the desired
+	 * values will need to be programmed appropriately.
+	 */
+	writel_relaxed(DDR_CONFIG_POR_VAL, host->ioaddr + CORE_DDR_CONFIG);
+
+	config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG_2);
+	config |= CORE_DDR_CAL_EN;
+	writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG_2);
+
+	ret = readl_relaxed_poll_timeout(host->ioaddr + CORE_DLL_STATUS,
+					 dll_status,
+					 (dll_status & CORE_DDR_DLL_LOCK),
+					 10, 1000);
+
+	if (ret == -ETIMEDOUT) {
+		pr_err("%s: %s: CM_DLL_SDC4 calibration was not completed\n",
+		       mmc_hostname(host->mmc), __func__);
+		goto out;
+	}
+
+	config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC3);
+	config |= CORE_PWRSAVE_DLL;
+	writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC3);
+
+	/*
+	 * Drain writebuffer to ensure above DLL calibration
+	 * and PWRSAVE DLL is enabled.
+	 */
+	wmb();
+out:
+	pr_debug("%s: %s: Exit, ret %d\n", mmc_hostname(host->mmc),
+		 __func__, ret);
+	return ret;
+}
+
+static int sdhci_msm_hs400_dll_calibration(struct sdhci_host *host)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	int ret;
+	u32 config;
+
+	pr_debug("%s: %s: Enter\n", mmc_hostname(host->mmc), __func__);
+
+	/*
+	 * Retuning in HS400 (DDR mode) will fail, just reset the
+	 * tuning block and restore the saved tuning phase.
+	 */
+	ret = msm_init_cm_dll(host);
+	if (ret)
+		goto out;
+
+	/* Set the selected phase in delay line hw block */
+	ret = msm_config_cm_dll_phase(host, msm_host->saved_tuning_phase);
+	if (ret)
+		goto out;
+
+	config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+	config |= CORE_CMD_DAT_TRACK_SEL;
+	writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+	if (msm_host->use_cdclp533)
+		ret = sdhci_msm_cdclp533_calibration(host);
+	else
+		ret = sdhci_msm_cm_dll_sdc4_calibration(host);
+out:
+	pr_debug("%s: %s: Exit, ret %d\n", mmc_hostname(host->mmc),
+		 __func__, ret);
+	return ret;
+}
+
 static int sdhci_msm_execute_tuning(struct sdhci_host *host, u32 opcode)
 {
 	int tuning_seq_cnt = 3;
@@ -715,7 +804,7 @@ static void sdhci_msm_set_uhs_signaling(struct sdhci_host *host,
 	if (host->clock > CORE_FREQ_100MHZ &&
 	    msm_host->tuning_done && !msm_host->calibration_done &&
 	    mmc->ios.timing == MMC_TIMING_MMC_HS400)
-		if (!sdhci_msm_cdclp533_calibration(host))
+		if (!sdhci_msm_hs400_dll_calibration(host))
 			msm_host->calibration_done = true;
 	spin_lock_irq(&host->lock);
 }
@@ -805,7 +894,7 @@ static void sdhci_msm_set_clock(struct sdhci_host *host, unsigned int clock)
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
 	struct mmc_ios curr_ios = host->mmc->ios;
-	u32 config;
+	u32 config, dll_lock;
 	int rc;
 
 	if (!clock) {
@@ -862,7 +951,32 @@ static void sdhci_msm_set_clock(struct sdhci_host *host, unsigned int clock)
 			config |= CORE_HC_SELECT_IN_EN;
 			writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC);
 		}
+		if (!msm_host->clk_rate && !msm_host->use_cdclp533) {
+			/*
+			 * Poll on DLL_LOCK or DDR_DLL_LOCK bits in
+			 * CORE_DLL_STATUS to be set.  This should get set
+			 * within 15 us at 200 MHz.
+			 */
+			rc = readl_relaxed_poll_timeout(host->ioaddr +
+							CORE_DLL_STATUS,
+							dll_lock,
+							(dll_lock &
+							(CORE_DLL_LOCK |
+							CORE_DDR_DLL_LOCK)), 10,
+							1000);
+			if (rc == -ETIMEDOUT)
+				pr_err("%s: Unable to get DLL_LOCK/DDR_DLL_LOCK, dll_status: 0x%08x\n",
+				       mmc_hostname(host->mmc), dll_lock);
+		}
 	} else {
+		if (!msm_host->use_cdclp533) {
+			config = readl_relaxed(host->ioaddr +
+					CORE_VENDOR_SPEC3);
+			config &= ~CORE_PWRSAVE_DLL;
+			writel_relaxed(config, host->ioaddr +
+					CORE_VENDOR_SPEC3);
+		}
+
 		config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
 		config &= ~CORE_HC_MCLK_SEL_MASK;
 		config |= CORE_HC_MCLK_SEL_DFLT;
@@ -1055,6 +1169,13 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 		msm_host->use_14lpp_dll_reset = true;
 
 	/*
+	 * SDCC 5 controller with major version 1, minor version 0x34 and later
+	 * with HS 400 mode support will use CM DLL instead of CDC LP 533 DLL.
+	 */
+	if (core_major == 1 && core_minor < 0x34)
+		msm_host->use_cdclp533 = true;
+
+	/*
 	 * Support for some capabilities is not advertised by newer
 	 * controller versions and must be explicitly enabled.
 	 */
