[PATCH 2/4] mmc: mmc: Add change to set controller to HS400 frequency in enhanced strobe

Ritesh Harjani
2016-12-20T05:53:17Z

Currently mmc_select_hs400es is not setting the desired frequency
before sending switch command. This makes CMD13 to timeout on
some controllers.
Thus add a change to set the desired HS400 frequency
in mmc_select_hs400es when the timing is switched to HS400.

Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
---
drivers/mmc/core/mmc.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index b61b52f9..eb69497 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1329,6 +1329,7 @@ static int mmc_select_hs400es(struct mmc_card *card)

/* Set host controller to HS400 timing and frequency */
mmc_set_timing(host, MMC_TIMING_MMC_HS400);
+ mmc_set_bus_speed(card);

/* Controller enable enhanced strobe function */
host->ios.enhanced_strobe = true;
--
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