1 files changed, 48 insertions, 28 deletions

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index a5dc5aae973e..4b297f397326 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -668,10 +668,10 @@ void sdhci_adma_write_desc(struct sdhci_host *host, void **desc,
 	/* 32-bit and 64-bit descriptors have these members in same position */
 	dma_desc->cmd = cpu_to_le16(cmd);
 	dma_desc->len = cpu_to_le16(len);
-	dma_desc->addr_lo = cpu_to_le32((u32)addr);
+	dma_desc->addr_lo = cpu_to_le32(lower_32_bits(addr));
 
 	if (host->flags & SDHCI_USE_64_BIT_DMA)
-		dma_desc->addr_hi = cpu_to_le32((u64)addr >> 32);
+		dma_desc->addr_hi = cpu_to_le32(upper_32_bits(addr));
 
 	*desc += host->desc_sz;
 }
@@ -816,6 +816,13 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
 	}
 }
 
+static void sdhci_set_adma_addr(struct sdhci_host *host, dma_addr_t addr)
+{
+	sdhci_writel(host, lower_32_bits(addr), SDHCI_ADMA_ADDRESS);
+	if (host->flags & SDHCI_USE_64_BIT_DMA)
+		sdhci_writel(host, upper_32_bits(addr), SDHCI_ADMA_ADDRESS_HI);
+}
+
 static dma_addr_t sdhci_sdma_address(struct sdhci_host *host)
 {
 	if (host->bounce_buffer)
@@ -826,13 +833,10 @@ static dma_addr_t sdhci_sdma_address(struct sdhci_host *host)
 
 static void sdhci_set_sdma_addr(struct sdhci_host *host, dma_addr_t addr)
 {
-	if (host->v4_mode) {
-		sdhci_writel(host, addr, SDHCI_ADMA_ADDRESS);
-		if (host->flags & SDHCI_USE_64_BIT_DMA)
-			sdhci_writel(host, (u64)addr >> 32, SDHCI_ADMA_ADDRESS_HI);
-	} else {
+	if (host->v4_mode)
+		sdhci_set_adma_addr(host, addr);
+	else
 		sdhci_writel(host, addr, SDHCI_DMA_ADDRESS);
-	}
 }
 
 static unsigned int sdhci_target_timeout(struct sdhci_host *host,
@@ -1095,12 +1099,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
 			host->flags &= ~SDHCI_REQ_USE_DMA;
 		} else if (host->flags & SDHCI_USE_ADMA) {
 			sdhci_adma_table_pre(host, data, sg_cnt);
-
-			sdhci_writel(host, host->adma_addr, SDHCI_ADMA_ADDRESS);
-			if (host->flags & SDHCI_USE_64_BIT_DMA)
-				sdhci_writel(host,
-					     (u64)host->adma_addr >> 32,
-					     SDHCI_ADMA_ADDRESS_HI);
+			sdhci_set_adma_addr(host, host->adma_addr);
 		} else {
 			WARN_ON(sg_cnt != 1);
 			sdhci_set_sdma_addr(host, sdhci_sdma_address(host));
@@ -1636,8 +1635,8 @@ void sdhci_enable_clk(struct sdhci_host *host, u16 clk)
 	clk |= SDHCI_CLOCK_INT_EN;
 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
 
-	/* Wait max 20 ms */
-	timeout = ktime_add_ms(ktime_get(), 20);
+	/* Wait max 150 ms */
+	timeout = ktime_add_ms(ktime_get(), 150);
 	while (1) {
 		bool timedout = ktime_after(ktime_get(), timeout);
 
@@ -1653,6 +1652,29 @@ void sdhci_enable_clk(struct sdhci_host *host, u16 clk)
 		udelay(10);
 	}
 
+	if (host->version >= SDHCI_SPEC_410 && host->v4_mode) {
+		clk |= SDHCI_CLOCK_PLL_EN;
+		clk &= ~SDHCI_CLOCK_INT_STABLE;
+		sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
+
+		/* Wait max 150 ms */
+		timeout = ktime_add_ms(ktime_get(), 150);
+		while (1) {
+			bool timedout = ktime_after(ktime_get(), timeout);
+
+			clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
+			if (clk & SDHCI_CLOCK_INT_STABLE)
+				break;
+			if (timedout) {
+				pr_err("%s: PLL clock never stabilised.\n",
+				       mmc_hostname(host->mmc));
+				sdhci_dumpregs(host);
+				return;
+			}
+			udelay(10);
+		}
+	}
+
 	clk |= SDHCI_CLOCK_CARD_EN;
 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
 }
@@ -1849,7 +1871,9 @@ void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing)
 		ctrl_2 |= SDHCI_CTRL_UHS_SDR104;
 	else if (timing == MMC_TIMING_UHS_SDR12)
 		ctrl_2 |= SDHCI_CTRL_UHS_SDR12;
-	else if (timing == MMC_TIMING_UHS_SDR25)
+	else if (timing == MMC_TIMING_SD_HS ||
+		 timing == MMC_TIMING_MMC_HS ||
+		 timing == MMC_TIMING_UHS_SDR25)
 		ctrl_2 |= SDHCI_CTRL_UHS_SDR25;
 	else if (timing == MMC_TIMING_UHS_SDR50)
 		ctrl_2 |= SDHCI_CTRL_UHS_SDR50;
@@ -2120,11 +2144,6 @@ void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
 		pm_runtime_get_noresume(host->mmc->parent);
 
 	spin_lock_irqsave(&host->lock, flags);
-	if (enable)
-		host->flags |= SDHCI_SDIO_IRQ_ENABLED;
-	else
-		host->flags &= ~SDHCI_SDIO_IRQ_ENABLED;
-
 	sdhci_enable_sdio_irq_nolock(host, enable);
 	spin_unlock_irqrestore(&host->lock, flags);
 
@@ -2139,8 +2158,7 @@ static void sdhci_ack_sdio_irq(struct mmc_host *mmc)
 	unsigned long flags;
 
 	spin_lock_irqsave(&host->lock, flags);
-	if (host->flags & SDHCI_SDIO_IRQ_ENABLED)
-		sdhci_enable_sdio_irq_nolock(host, true);
+	sdhci_enable_sdio_irq_nolock(host, true);
 	spin_unlock_irqrestore(&host->lock, flags);
 }
 
@@ -2305,7 +2323,7 @@ void sdhci_reset_tuning(struct sdhci_host *host)
 }
 EXPORT_SYMBOL_GPL(sdhci_reset_tuning);
 
-static void sdhci_abort_tuning(struct sdhci_host *host, u32 opcode)
+void sdhci_abort_tuning(struct sdhci_host *host, u32 opcode)
 {
 	sdhci_reset_tuning(host);
 
@@ -2316,6 +2334,7 @@ static void sdhci_abort_tuning(struct sdhci_host *host, u32 opcode)
 
 	mmc_abort_tuning(host->mmc, opcode);
 }
+EXPORT_SYMBOL_GPL(sdhci_abort_tuning);
 
 /*
  * We use sdhci_send_tuning() because mmc_send_tuning() is not a good fit. SDHCI
@@ -3024,7 +3043,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
 
 	spin_lock(&host->lock);
 
-	if (host->runtime_suspended && !sdhci_sdio_irq_enabled(host)) {
+	if (host->runtime_suspended) {
 		spin_unlock(&host->lock);
 		return IRQ_NONE;
 	}
@@ -3358,7 +3377,7 @@ int sdhci_runtime_resume_host(struct sdhci_host *host, int soft_reset)
 	host->runtime_suspended = false;
 
 	/* Enable SDIO IRQ */
-	if (host->flags & SDHCI_SDIO_IRQ_ENABLED)
+	if (sdio_irq_claimed(mmc))
 		sdhci_enable_sdio_irq_nolock(host, true);
 
 	/* Enable Card Detection */
@@ -3565,7 +3584,8 @@ static int sdhci_set_dma_mask(struct sdhci_host *host)
 	return ret;
 }
 
-void __sdhci_read_caps(struct sdhci_host *host, u16 *ver, u32 *caps, u32 *caps1)
+void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver,
+		       const u32 *caps, const u32 *caps1)
 {
 	u16 v;
 	u64 dt_caps_mask = 0;