1 files changed, 10 insertions, 8 deletions

diff --git a/drivers/mmc/mmci.c b/drivers/mmc/mmci.c
index 634ef53e85a5..9fef29d978b5 100644
--- a/drivers/mmc/mmci.c
+++ b/drivers/mmc/mmci.c
@@ -97,6 +97,13 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
         if (data->flags & MMC_DATA_READ) {
                 datactrl |= MCI_DPSM_DIRECTION;
                 irqmask = MCI_RXFIFOHALFFULLMASK;
+
+                /*
+                 * If we have less than a FIFOSIZE of bytes to transfer,
+                 * trigger a PIO interrupt as soon as any data is available.
+                 */
+                if (host->size < MCI_FIFOSIZE)
+                        irqmask |= MCI_RXDATAAVLBLMASK;
         } else {
                 /*
                  * We don't actually need to include "FIFO empty" here
@@ -124,15 +131,10 @@ mmci_start_command(struct mmci_host *host, struct mmc_command *cmd, u32 c)
         }
 
         c |= cmd->opcode | MCI_CPSM_ENABLE;
-        switch (cmd->flags & MMC_RSP_MASK) {
-        case MMC_RSP_NONE:
-        default:
-                break;
-        case MMC_RSP_LONG:
-                c |= MCI_CPSM_LONGRSP;
-        case MMC_RSP_SHORT:
+        if (cmd->flags & MMC_RSP_PRESENT) {
+                if (cmd->flags & MMC_RSP_136)
+                        c |= MCI_CPSM_LONGRSP;
                 c |= MCI_CPSM_RESPONSE;
-                break;
         }
         if (/*interrupt*/0)
                 c |= MCI_CPSM_INTERRUPT;