diff options
| -rw-r--r-- | drivers/mmc/core/mmc.c | 3 | ||||
| -rw-r--r-- | include/linux/mmc/host.h | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index bc1bd2c25613..4ff08ea930a6 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1181,6 +1181,9 @@ static int mmc_select_hs400(struct mmc_card *card) if (err) goto out_err; + if (host->ops->hs400_prepare_ddr) + host->ops->hs400_prepare_ddr(host); + /* Switch card to DDR */ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 2a5fe75dd082..2709c94d9d86 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -147,6 +147,9 @@ struct mmc_host_ops { /* Prepare HS400 target operating frequency depending host driver */ int (*prepare_hs400_tuning)(struct mmc_host *host, struct mmc_ios *ios); + /* Prepare switch to DDR during the HS400 init sequence */ + int (*hs400_prepare_ddr)(struct mmc_host *host); + /* Prepare for switching from HS400 to HS200 */ void (*hs400_downgrade)(struct mmc_host *host); |