1 files changed, 12 insertions, 3 deletions

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 5f95e10229b5..e3a8133560a2 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -278,6 +278,15 @@ static void sdhci_transfer_pio(struct sdhci_host *host)
         else
                 mask = SDHCI_SPACE_AVAILABLE;
 
+        /*
+         * Some controllers (JMicron JMB38x) mess up the buffer bits
+         * for transfers < 4 bytes. As long as it is just one block,
+         * we can ignore the bits.
+         */
+        if ((host->quirks & SDHCI_QUIRK_BROKEN_SMALL_PIO) &&
+                (host->data->blocks == 1))
+                mask = ~0;
+
         while (readl(host->ioaddr + SDHCI_PRESENT_STATE) & mask) {
                 if (host->data->flags & MMC_DATA_READ)
                         sdhci_read_block_pio(host);
@@ -439,7 +448,7 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
 
         host->adma_addr = dma_map_single(mmc_dev(host->mmc),
                 host->adma_desc, (128 * 2 + 1) * 4, DMA_TO_DEVICE);
-        if (dma_mapping_error(mmc_dev(host->mmc), host->align_addr))
+        if (dma_mapping_error(mmc_dev(host->mmc), host->adma_addr))
                 goto unmap_entries;
         BUG_ON(host->adma_addr & 0x3);
 
@@ -645,7 +654,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
                                  * us an invalid request.
                                  */
                                 WARN_ON(1);
-                                host->flags &= ~SDHCI_USE_DMA;
+                                host->flags &= ~SDHCI_REQ_USE_DMA;
                         } else {
                                 writel(host->adma_addr,
                                         host->ioaddr + SDHCI_ADMA_ADDRESS);
@@ -664,7 +673,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
                                  * us an invalid request.
                                  */
                                 WARN_ON(1);
-                                host->flags &= ~SDHCI_USE_DMA;
+                                host->flags &= ~SDHCI_REQ_USE_DMA;
                         } else {
                                 WARN_ON(sg_cnt != 1);
                                 writel(sg_dma_address(data->sg),