[PATCH RESEND 2/4] mmc: omap_hsmmc: add DDR support to omap_hsmmc

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From: Balaji T K <balajitk@xxxxxx>

Add Dual data rate support for omap_hsmmc

Signed-off-by: Balaji T K <balajitk@xxxxxx>
Signed-off-by: Venkatraman S <svenkatr@xxxxxx>
---
 drivers/mmc/host/omap_hsmmc.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 1fcacb6..9e701f3 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -92,6 +92,7 @@
 #define MSBS			(1 << 5)
 #define BCE			(1 << 1)
 #define FOUR_BIT		(1 << 1)
+#define DDR			(1 << 19)
 #define DW8			(1 << 5)
 #define CC			0x1
 #define TC			0x02
@@ -523,6 +524,10 @@ static void omap_hsmmc_set_bus_width(struct omap_hsmmc_host *host)
 	u32 con;
 
 	con = OMAP_HSMMC_READ(host->base, CON);
+	if (ios->timing == MMC_TIMING_UHS_DDR50)
+		con |= DDR;	/* configure in DDR mode */
+	else
+		con &= ~DDR;
 	switch (ios->bus_width) {
 	case MMC_BUS_WIDTH_8:
 		OMAP_HSMMC_WRITE(host->base, CON, con | DW8);
-- 
1.7.10.rc2

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