diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 1dbe93232030..2dcb6c18a16f 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -635,9 +635,11 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
 		}
 	}
 
-	if (!data->host_cookie)
+	if (!data->host_cookie) {
+		pr_info("%s: unmapping %p phys=%pad size=%u\n", __func__, data->sg, &sg_dma_address(data->sg), data->sg_len);
 		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)
@@ -949,11 +951,13 @@ static void sdhci_finish_data(struct sdhci_host *host)
 		if (host->flags & SDHCI_USE_ADMA)
 			sdhci_adma_table_post(host, data);
 		else {
-			if (!data->host_cookie)
+			if (!data->host_cookie) {
+				pr_info("%s: unmapping %p phys=%pad size=%u\n", __func__, data->sg, &sg_dma_address(data->sg), data->sg_len);
 				dma_unmap_sg(mmc_dev(host->mmc),
 					data->sg, data->sg_len,
 					(data->flags & MMC_DATA_READ) ?
 					DMA_FROM_DEVICE : DMA_TO_DEVICE);
+			}
 		}
 	}
 
@@ -2097,10 +2101,12 @@ static void sdhci_post_req(struct mmc_host *mmc, struct mmc_request *mrq,
 	struct mmc_data *data = mrq->data;
 
 	if (host->flags & SDHCI_REQ_USE_DMA) {
-		if (data->host_cookie)
+		if (data->host_cookie) {
+			pr_info("%s: unmapping %p phys=%pad size=%u\n", __func__, data->sg, &sg_dma_address(data->sg), data->sg_len);
 			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;
 	}
 }
@@ -2113,7 +2119,7 @@ static int sdhci_pre_dma_transfer(struct sdhci_host *host,
 
 	if (!next && data->host_cookie &&
 	    data->host_cookie != host->next_data.cookie) {
-		pr_debug(DRIVER_NAME "[%s] invalid cookie: %d, next-cookie %d\n",
+		pr_info(DRIVER_NAME "[%s] invalid cookie: %d, next-cookie %d\n",
 			__func__, data->host_cookie, host->next_data.cookie);
 		data->host_cookie = 0;
 	}
@@ -2125,6 +2131,9 @@ static int sdhci_pre_dma_transfer(struct sdhci_host *host,
 				     data->sg_len,
 				     data->flags & MMC_DATA_WRITE ?
 				     DMA_TO_DEVICE : DMA_FROM_DEVICE);
+		pr_info("%s: mapped %p %pad (wanted=%u, got=%d), next=%p, hcook=%d, ncook=%d\n",
+				__func__, data->sg, &sg_dma_address(data->sg), data->sg_len, sg_count, next, data->host_cookie,
+				host->next_data.cookie);
 
 	} else {
 		sg_count = host->next_data.sg_count;