2 files changed, 14 insertions, 2 deletions

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 626ac083f4e0..da5fecad74d9 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -425,7 +425,7 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                         host->cclk = host->mclk;
                 } else {
                         clk = host->mclk / (2 * ios->clock) - 1;
-                        if (clk > 256)
+                        if (clk >= 256)
                                 clk = 255;
                         host->cclk = host->mclk / (2 * (clk + 1));
                 }
@@ -512,6 +512,18 @@ static int mmci_probe(struct amba_device *dev, void *id)
 
         host->plat = plat;
         host->mclk = clk_get_rate(host->clk);
+        /*
+         * According to the spec, mclk is max 100 MHz,
+         * so we try to adjust the clock down to this,
+         * (if possible).
+         */
+        if (host->mclk > 100000000) {
+                ret = clk_set_rate(host->clk, 100000000);
+                if (ret < 0)
+                        goto clk_disable;
+                host->mclk = clk_get_rate(host->clk);
+                DBG(host, "eventual mclk rate: %u Hz\n", host->mclk);
+        }
         host->mmc = mmc;
         host->base = ioremap(dev->res.start, SZ_4K);
         if (!host->base) {
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 7fb02e177a3d..299118de8933 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -187,7 +187,7 @@ struct sdhci_host {
         struct mmc_request      *mrq;           /* Current request */
         struct mmc_command      *cmd;           /* Current command */
         struct mmc_data         *data;          /* Current data request */
-        int                     data_early:1;   /* Data finished before cmd */
+        unsigned int            data_early:1;   /* Data finished before cmd */
 
         struct scatterlist      *cur_sg;        /* We're working on this */
         int                     num_sg;         /* Entries left */