mmc: set bus width to 1 and clock to minimum early during initialization

We need to switch back to 1-bit before initialization or SD 2.0 cards
will fail to send SCR if we've switched to 4-bit already.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 8c736ce4974357649d79050d68cede82c954da61..b69ce152a83b5e1ef6848af754b63d7707eca83c 100644 (file)
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -859,6 +859,9 @@ int mmc_init(struct mmc *mmc)
        if (err)
                return err;
 
+       mmc_set_bus_width(mmc, 1);
+       mmc_set_clock(mmc, 1);
+
        /* Reset the Card */
        err = mmc_go_idle(mmc);