sdhci: platform driver for SDHCI

Added a platform driver which uses the SDHCI core.

Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 75337e4..b1cf790 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -83,6 +83,17 @@
 
 	  If unsure, say N.
 
+config MMC_SDHCI_PLTFM
+	tristate "SDHCI support on the platform specific bus"
+	depends on MMC_SDHCI
+	help
+	  This selects the platform specific bus support for Secure Digital Host
+	  Controller Interface.
+
+	  If you have a controller with this interface, say Y or M here.
+
+	  If unsure, say N.
+
 config MMC_OMAP
 	tristate "TI OMAP Multimedia Card Interface support"
 	depends on ARCH_OMAP