mmc: add a hs400_tuning flag

Some controllers may have difference between HS200 tuning
and HS400 tuning, such as different registers setting,
different procedure, or different errata.

This patch is to add a hs400_tuning flag to identify the
tuning for HS400 mode.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 0727505..b75c2bc 100644 (file)
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1982,7 +1982,9 @@ static int mmc_select_hs400(struct mmc *mmc)
        mmc_set_clock(mmc, mmc->tran_speed, false);
 
        /* execute tuning if needed */
+       mmc->hs400_tuning = 1;
        err = mmc_execute_tuning(mmc, MMC_CMD_SEND_TUNING_BLOCK_HS200);
+       mmc->hs400_tuning = 0;
        if (err) {
                debug("tuning failed\n");
                return err;

diff --git a/include/mmc.h b/include/mmc.h
index 93494d9..bea1c49 100644 (file)
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -707,6 +707,7 @@ struct mmc {
                                  * accessing the boot partitions
                                  */
        u32 quirks;
+       u8 hs400_tuning;
 };
 
 struct mmc_hwpart_conf {