mmc: bug fixed about boot config

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index e976550..4b9a75a 100644 (file)
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -424,6 +424,10 @@ int mmc_change_freq(struct mmc *mmc)
        if (err)
                return err;
 
+       /* set previous value to mmc->boot_config */
+       if (!mmc->boot_config)
+               mmc->boot_config = ext_csd[179];
+
        /* partition configuration */
        err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
                        EXT_CSD_BOOT_CONFIG, mmc->boot_config);