To ensure the stable clock need to enable before set the DW_MMC_CARD_NEED_INIT flag.
If set DW_MMC_CARD_NEED_INIT flag, wait for 80-clock before first command after power-up.
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Acked-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
---
Changelog v2-v3:
- Modified the commit-message
drivers/mmc/host/dw_mmc.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index c0667c8..a1369aa 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -683,9 +683,6 @@ static void __dw_mci_start_request(struct dw_mci *host,
if (host->pdata->select_slot)
host->pdata->select_slot(slot->id);
- /* Slot specific timing and width adjustment */
- dw_mci_setup_bus(slot);
-
host->cur_slot = slot;
host->mrq = mrq;
@@ -812,6 +809,9 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (drv_data && drv_data->set_ios)
drv_data->set_ios(slot->host, ios);
+ /* Slot specific timing and width adjustment */
+ dw_mci_setup_bus(slot);
+
switch (ios->power_mode) {
case MMC_POWER_UP:
set_bit(DW_MMC_CARD_NEED_INIT, &slot->flags);
--
1.7.4.1
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