1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 150772395cc6..fba51073e94f 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -202,6 +202,9 @@ static void mmci_set_clkreg(struct mmci_host *host, unsigned int desired)
         if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_8)
                 clk |= MCI_ST_8BIT_BUS;
 
+        if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50)
+                clk |= MCI_ST_UX500_NEG_EDGE;
+
         mmci_write_clkreg(host, clk);
 }
 
@@ -680,6 +683,9 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
                         mmci_write_clkreg(host, clk);
                 }
 
+        if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50)
+                datactrl |= MCI_ST_DPSM_DDRMODE;
+
         /*
          * Attempt to use DMA operation mode, if this
          * should fail, fall back to PIO mode